High-temperature-resistant uninterrupted circulating ink path system

Abstract

The invention provides a high-temperature-resistant uninterrupted circulation ink path system, and relates to the technical field of digital ink jet. The high-temperature-resistant uninterrupted circulation ink path system comprises an ink path circulation system composed of a first ink box, a first filter, a first pump body, a second ink box, a second filter, a spray head, a third filter and a second pump body, and the ink path circulation system is fixedly installed in a drying oven mechanism. And a hot air transmission assembly is fixedly mounted between the drying oven mechanism and the temperature control ink barrel. By designing the ink path circulating system and the drying oven mechanism, the circulating air heater can supply hot air into the drying oven body, so that the whole ink path circulating system can be controlled in a proper temperature environment, accurate temperature control can ensure that a spray head and materials are not influenced by the external environment temperature in the printing work, and high efficiency and low failure rate of printing are ensured; the printing effect is high.

Description

Technical Field

[0001] The invention relates to the technical field of digital inkjet, in particular to a high temperature resistant uninterrupted circulation ink path system. Background Art

[0002] Inkjet printing is the process of spraying ink droplets onto a substrate to form an image. Due to its plateless, pressureless and digital imaging characteristics and non-contact printing method, it has incomparable advantages over traditional printing technology. In addition, with the rapid development of social informatization and networking and the continuous advancement of printing technology, digital inkjet printing has also made great progress, the printing quality has been continuously improved, and it has been more and more widely used in the printing field.

[0003] The main structure of the traditional circulating ink circuit is basically composed of a pump, ink tubes, and ink cartridge positive and negative pressure controllers. The working principle is to use the positive and negative pressure controllers to generate a pressure difference to allow the material in the ink cartridge to flow through the nozzle. However, there is currently no high-temperature resistant circulating ink circuit system in the industry. There is only the common normal temperature circulating ink circuit system without temperature control. Specifically: the traditional circulating ink circuit uses normal temperature materials in all components, which are not resistant to high temperatures and may deteriorate, soften, and be damaged under high temperatures. In addition, it lacks an accurate temperature control system, and all components are used at normal temperature and are greatly affected by the ambient temperature. In addition, the traditional circulating ink circuit only has a heating function in the nozzle itself. The ink is heated only after it passes through the normal temperature ink tube to the inside of the nozzle. For printing projects with high ink demand, the ink has the problem of poor printing effect due to inaccurate temperature control.

[0004] To this end, we have developed a new high-temperature resistant uninterrupted circulation ink system. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a high-temperature resistant uninterrupted circulating ink circuit system, which solves the problem that the existing traditional circulating ink circuit is greatly affected by the ambient temperature and only the nozzle itself has a heating function. For printing projects with high ink demand, the ink temperature control is not accurate, resulting in poor printing effect.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: An embodiment of the present invention provides a high-temperature resistant uninterrupted circulation ink circuit system, comprising a first ink cartridge, a second ink cartridge, a temperature-controlled ink barrel, an oven mechanism, a plurality of ink tubes and a plurality of high-temperature resistant tube bodies, a first filter and a first pump body are sequentially fixedly installed between the first ink cartridge and the second ink cartridge through a plurality of ink tubes, and a nozzle is commonly fixedly installed between the first ink cartridge and the second ink cartridge through a plurality of ink tubes;

[0009] A second filter is fixedly installed between the first ink cartridge and the nozzle, a third filter is fixedly installed between the second ink cartridge and the nozzle, and a second pump body is fixedly installed between the second ink cartridge and the temperature-controlled ink barrel via a plurality of ink tubes;

[0010] The first ink cartridge is fixedly mounted with a first positive and negative pressure generator via a high temperature resistant tube body, and the second ink cartridge is fixedly mounted with a second positive and negative pressure generator via a high temperature resistant tube body;

[0011] The first ink cartridge, the first filter, the first pump body, the second ink cartridge, the second filter, the nozzle, the third filter and the second pump body together constitute an ink circulation system, and the ink circulation system is fixedly installed inside the oven mechanism, and a hot air transmission component is fixedly installed between the oven mechanism and the temperature-controlled ink barrel.

[0012] Preferably, the temperature-controlled ink barrel includes an ink barrel body, the outer surface of which is fixedly connected to a heat-insulating shell, the bottom of the ink barrel body is fixedly connected to an ink tube, and one end of the ink tube extends through the outside of the heat-insulating shell and is connected to the water inlet pipe of the second pump body.

[0013] Through the above technical solution, the heat-insulating shell can further insulate the ink barrel body, thereby slowing down the heat loss rate inside the ink barrel body and preventing the ink from quickly warming up.

[0014] Preferably, the oven mechanism includes an oven body, a circulating hot air blower is fixedly mounted on one end of the upper surface of the oven body, an air outlet of the circulating hot air blower is fixedly connected to an air duct, the air duct is fixedly mounted inside the side wall of the oven body, and a plurality of filters matching the air duct are symmetrically mounted on the inner side of the oven body, and a plurality of filter screens matching the air duct are mounted on the outer surfaces of the plurality of filter screens matching the oven body, and a plurality of groups of auxiliary temperature control components are mounted on the rear side of the inner wall of the oven body.

[0015] Through the above technical solution, the hot air sent into the air duct by the circulating hot air blower will enter the interior of the oven body through the filter screen, heating the ink circulation system, ensuring that the ink circulation system is within a stable temperature range.

[0016] Preferably, the limiting assembly includes an installation frame which is sleeved and fixedly connected to the outer surface of the filter screen, the top side wall and the bottom side wall of the installation frame are fixedly connected with springs, one end of the two springs are fixedly connected with a clamping block, the outer surfaces of the two clamping blocks are clamped with the inner side walls of the oven body, and one side of the outer surfaces of the two clamping blocks is fixedly connected with a paddle, and one end of the two paddle plates extends through to the outside of the installation frame.

[0017] According to the technical solution, the two plates can be moved closer to each other toward the opposite sides, thereby releasing the clamping connection between the two clamping blocks and the side wall of the oven body, thereby removing the filter screen.

[0018] Preferably, the auxiliary temperature control component includes a temperature sensor fixedly mounted on the rear side of the inner wall of the oven body, and a heating rod matching with the temperature sensor is fixedly mounted on the inner wall of the oven body and located on one side of the temperature sensor.

[0019] Through the above technical solution, multiple temperature sensors can detect the temperatures at different positions in the oven body, and the heating rod can assist in heating the space next to the position detected by the corresponding temperature sensor.

[0020] Preferably, the hot air transfer component includes an exhaust fan fixedly installed on the rear side of the inner wall of the oven body, and the back side of the oven body is fixedly connected to a duct that cooperates with the exhaust fan, one end of the duct is connected to the interior of the thermal insulation shell, and the top of the thermal insulation shell is fixedly connected to an outlet pipe that cooperates with the duct, and a valve body is fixedly installed in the middle of the duct.

[0021] Through the above technical solution, the hot air inside the oven can be transported to the inside of the heat-insulating shell through the conduit through the negative pressure generated by the exhaust fan, thereby heating the ink barrel body inside the heat-insulating shell.

[0022] Preferably, an air duct matching the air duct is provided inside the oven body.

[0023] Through the above technical solution, the setting of the air duct can facilitate the installation of the air duct.

[0024] Preferably, a plurality of air inlets matching the filter screen are provided on the side wall between the oven body and the air duct.

[0025] Through the above technical solution, the hot air inside the air duct can be transported to the inside of the oven body through the air inlet and the filter, thereby achieving heating inside the oven body.

[0026] Preferably, a plurality of partitions for installing the ink circulation system are fixedly connected to the inner wall of the oven body, and a control panel is fixedly installed on the front of the oven body, and the control panel is electrically connected to the first positive and negative pressure generator, the second positive and negative pressure generator, the auxiliary temperature control component and the ink circulation system.

[0027] Through the above technical solution, the normal operation of the entire ink circulation system can be controlled through the control panel, realizing the transportation and circulation of ink at high temperature.

[0028] (III) Beneficial effects

[0029] The present invention provides a high temperature resistant uninterrupted circulation ink circuit system. It has the following beneficial effects:

[0030] 1. The high temperature resistant uninterrupted circulation ink system, through the design of the ink circulation system and the oven mechanism, the circulating hot air blower can send hot air into the oven body, so that the entire ink circulation system can be controlled in a suitable temperature environment. Precise temperature control can ensure that the nozzle and the material are not affected by the external environment temperature during printing, ensuring high printing efficiency, low failure rate, and high printing effect;

[0031] 2. The high-temperature resistant uninterrupted circulation ink circuit system, through the design of temperature-controlled ink barrels and hot air transmission components, the hot air introduced into the oven body can be re-entered into the interior of the heat-insulating shell through the exhaust fan and the duct, thereby realizing the reuse of hot air and realizing the temperature control of the ink barrel body, so that the ink can be preheated when it is inside the ink barrel. For printing projects with large ink requirements, when the ink is transported to the nozzle, there will be no problem of inaccurate temperature control of the nozzle and poor printing effect;

[0032] 3. The high-temperature resistant uninterrupted circulation ink system is designed with an oven mechanism and an ink circulation system. The ink circulation system uses high-temperature resistant materials and can use liquefied materials at high temperatures for printing, which broadens its application in the printing field. It is also compatible with the printing of normal temperature materials. Stable temperature control can safely print in high or low temperature external environments, and normal temperature materials can also be printed in different external environments;

[0033] 4. The high-temperature resistant uninterrupted circulation ink system is designed with a filter and a limit assembly. The filter can filter the hot air entering the oven body, so that external impurities will not interfere with the components of the ink circulation system. In addition, the installation and disassembly of the filter is also relatively easy and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of ink circulation of the present invention;

[0035] Figure 2 It is the operation flow chart of the present invention;

[0036] Figure 3 It is a schematic diagram of the overall coordination relationship of the present invention;

[0037] Figure 4 It is a schematic diagram of the internal structure of the oven mechanism of the present invention;

[0038] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;

[0039] Figure 6 It is a three-dimensional diagram of the oven mechanism and the temperature-controlled ink barrel of the present invention.

[0040] Among them, 1. the first positive and negative pressure generator; 2. the first ink cartridge; 3. the first filter; 4. the first pump body; 5. the second ink cartridge; 6. the second positive and negative pressure generator; 7. the second filter; 8. the nozzle; 9. the third filter; 10. the second pump body; 11. the temperature-controlled ink barrel; 1101. the ink barrel body; 1102. the heat-insulating shell; 1103. the air outlet pipe; 1104. the conduit; 1105. the valve body; 12. the oven Mechanism; 1201, oven body; 1202, partition; 1203, installation frame; 1204, filter; 1205, dial plate; 1206, block; 1207, spring; 1208, temperature sensor; 1209, heating rod; 1210, exhaust fan; 1211, circulating hot air blower; 1212, air duct; 1213, air duct; 13, ink tube; 14, high temperature resistant tube body; 15, control panel. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example:

[0043] like Figure 1 - Figure 6 As shown, an embodiment of the present invention provides a high temperature resistant uninterrupted circulation ink circuit system, comprising a first ink cartridge 2, a second ink cartridge 5, a temperature-controlled ink barrel 11, an oven mechanism 12, a plurality of ink tubes 13 and a plurality of high temperature resistant tube bodies 14, a first filter 3 and a first pump body 4 are sequentially fixedly installed between the first ink cartridge 2 and the second ink cartridge 5 through the plurality of ink tubes 13, and a nozzle 8 is fixedly installed between the first ink cartridge 2 and the second ink cartridge 5 through the plurality of ink tubes 13;

[0044] like Figure 1 and Figure 2 As shown, a second filter 7 is fixedly installed between the first ink cartridge 2 and the nozzle 8, a third filter 9 is fixedly installed between the second ink cartridge 5 and the nozzle 8, and a second pump body 10 is fixedly installed between the second ink cartridge 5 and the temperature-controlled ink barrel 11 through a plurality of ink tubes 13;

[0045] like Figure 4 and Figure 5 As shown, the first ink cartridge 2 is fixedly mounted with the first positive and negative pressure generator 1 through the high temperature resistant tube body 14, and the second ink cartridge 5 is fixedly mounted with the second positive and negative pressure generator 6 through the high temperature resistant tube body 14;

[0046] like Figure 4 and Figure 5 As shown, the first ink cartridge 2, the first filter 3, the first pump body 4, the second ink cartridge 5, the second filter 7, the nozzle 8, the third filter 9 and the second pump body 10 together constitute an ink circulation system, and the ink circulation system is fixedly installed inside the oven mechanism 12, wherein each component of the above ink circulation system is made of high temperature resistant material and can be used stably in a high temperature environment for a long time, and a hot air transmission component is fixedly installed between the oven mechanism 12 and the temperature-controlled ink barrel 11;

[0047] like Figure 6 As shown, the temperature-controlled ink barrel 11 includes an ink barrel body 1101, one side of the outer surface of the ink barrel body 1101 is fixedly connected with a liquid inlet pipe, and the outer surface of the ink barrel body 1101 is sleeved and fixedly connected with a heat-insulating shell 1102, the bottom of the ink barrel body 1101 is fixedly connected with an ink tube 13, and one end of the ink tube 13 extends through the outside of the heat-insulating shell 1102 and is connected with the water inlet pipe of the second pump body 10, and the ink in the ink barrel body 1101 can be pumped outwardly to the inside of the ink circulation system through the second pump body 10, and then transported;

[0048] like Figure 4 and Figure 5 As shown, the oven mechanism 12 includes an oven body 1201, a circulating hot air blower 1211 is fixedly installed at one end of the upper surface of the oven body 1201, an air outlet of the circulating hot air blower 1211 is fixedly connected to an air duct 1212, and the air duct 1212 is fixedly installed inside the side wall of the oven body 1201, wherein an air duct 1213 matching the air duct 1212 is opened inside the side wall of the oven body 1201, and a plurality of filters 1204 matching the air duct 1212 are symmetrically installed on the inner side of the oven body 1201, wherein a plurality of air inlets matching the filters 1204 are opened on the side wall between the oven body 1201 and the air duct 1213, and the outer surfaces of the plurality of filters 1204 are all installed with limiter components matching the oven body 1201, and a plurality of auxiliary temperature control components are installed on the rear side of the inner wall of the oven body 1201;

[0049] like Figure 5As shown, the limiting assembly includes a mounting frame 1203 which is sleeved and fixedly connected to the outer surface of the filter 1204, the top side wall and the bottom side wall of the mounting frame 1203 are fixedly connected with springs 1207, one end of the two springs 1207 are fixedly connected with a clamping block 1206, the outer surfaces of the two clamping blocks 1206 are clamped with the inner side wall of the oven body 1201, and one side of the outer surface of the two clamping blocks 1206 is fixedly connected with a paddle 1205, one end of the two paddles 1205 extends through the outside of the mounting frame 1203, by pressing the two paddles 1205 to the opposite side, the two paddles 1205 will slide relatively with the corresponding clamping blocks 1206, thereby compressing the springs 1207 and releasing the clamping connection with the side wall of the oven body 1201, so as to realize the removal of the filter 1204, and the operation is relatively easy and convenient;

[0050] like Figure 4 As shown, the auxiliary temperature control component includes a temperature sensor 1208 fixedly installed on the rear side of the inner wall of the oven body 1201, wherein the model of the temperature sensor 1208 is FST600-204, and a heating rod 1209 matching with the temperature sensor 1208 is fixedly installed on the inner wall of the oven body 1201 and at a position on one side of the temperature sensor 1208, wherein the heating rod 1209 is electrically connected to an external power supply, and by starting the heating rod 1209, the space near the heating rod 1209 can be heated;

[0051] like Figure 4 and Figure 6 As shown, the hot air transmission component includes an exhaust fan 1210 fixedly installed on the rear side of the inner wall of the oven body 1201, and a duct 1104 matched with the exhaust fan 1210 is fixedly connected to the back of the oven body 1201, one end of the duct 1104 is connected to the inside of the heat-insulating shell 1102, and an air outlet pipe 1103 matched with the duct 1104 is fixedly connected to the top of the heat-insulating shell 1102, and a valve body 1105 is fixedly installed in the middle of the duct 1104, and the valve body 1105 can control whether the hot air transmitted by the oven body 1201 through the duct 1104 can enter the inside of the heat-insulating shell 1102;

[0052] like Figure 4 and Figure 6 As shown, a plurality of partitions 1202 for installing the ink circulation system are fixedly connected to the inner wall of the oven body 1201, and a control panel 15 is fixedly installed on the front of the oven body 1201. The control panel 15 is electrically connected to the first positive and negative pressure generator 1, the second positive and negative pressure generator 6, the auxiliary temperature control component and the ink circulation system. The above components can be controlled by the control panel 15, thereby controlling the heating of the oven mechanism 12, the uniform regulation of various positions inside the oven by the auxiliary temperature control component, and the normal operation of the entire ink circulation system.

[0053] A high temperature resistant uninterrupted circulation ink system when in use:

[0054] S1. First, the material is loaded into the ink barrel body 1101, and the circulating hot air blower 1211 of the oven mechanism 12 is started. The circulating hot air blower 1211 can send hot air into the oven body 1201, so that the entire ink circulation system can be controlled in a suitable temperature environment. Accurate temperature control can ensure that the nozzle 8 and the material are not affected by the external ambient temperature during printing, ensuring high printing efficiency, low failure rate, and high printing effect. At the same time, the hot air introduced into the oven body 1201 can be passed into the insulation shell 1102 again through the exhaust fan 1210 and the conduit 1104, so as to realize the reuse of hot air and realize the temperature control of the ink barrel body 1101, so that the ink can be preheated and heated when it is inside the ink barrel body 1101. For printing projects with large ink requirements, when the ink is transported to the nozzle 8, there will be no problem of inaccurate temperature control of the nozzle 8 and poor printing effect;

[0055] S2, when the material is heated to the required temperature, the circulating ink circuit is powered on, and the second pump body 10 draws the material into the second ink cartridge 5 through the third filter 9. At the same time, the first pump body 4 draws the material into the first ink cartridge 2 through the first filter 3, until the two ink cartridges are full of ink and stop;

[0056] S3. Turn on the first positive and negative pressure generator 1 and the second positive and negative pressure generator 6, adjust to a negative pressure in the first ink cartridge 2, and make the negative pressure value in the first ink cartridge 2 smaller than the negative pressure value in the second ink cartridge 5. The material will flow from the first ink cartridge 2 through the second filter 7 and the nozzle 8 back to the second ink cartridge 5, forming a material flow cycle in a stable and controllable temperature environment.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant uninterrupted circulation ink system, comprising a first ink cartridge (2), a second ink cartridge (5), a temperature controlled ink barrel (11), an oven mechanism (12), a plurality of ink tubes (13) and a plurality of high temperature resistant tube bodies (14), characterized in that: A first filter (3) and a first pump body (4) are fixedly installed in sequence between the first ink cartridge (2) and the second ink cartridge (5) via a plurality of ink tubes (13), and a nozzle (8) is fixedly installed between the first ink cartridge (2) and the second ink cartridge (5) via a plurality of ink tubes (13); A second filter (7) is fixedly mounted between the first ink cartridge (2) and the nozzle (8), a third filter (9) is fixedly mounted between the second ink cartridge (5) and the nozzle (8), and a second pump body (10) is fixedly mounted between the second ink cartridge (5) and the temperature-controlled ink barrel (11) via a plurality of ink tubes (13); The first ink cartridge (2) is fixedly mounted with a first positive and negative pressure generator (1) via a high temperature resistant tube body (14), and the second ink cartridge (5) is fixedly mounted with a second positive and negative pressure generator (6) via a high temperature resistant tube body (14); The first ink cartridge (2), the first filter (3), the first pump body (4), the second ink cartridge (5), the second filter (7), the nozzle (8), the third filter (9) and the second pump body (10) together constitute an ink circulation system, and the ink circulation system is fixedly installed inside the oven mechanism (12), and a hot air transmission component is fixedly installed between the oven mechanism (12) and the temperature-controlled ink barrel (11).

2. According to claim 1, a high temperature resistant uninterrupted circulation ink system is characterized by: The temperature-controlled ink barrel (11) comprises an ink barrel body (1101), the outer surface of the ink barrel body (1101) is sleeved and fixedly connected with a heat-insulating outer shell (1102), the bottom of the ink barrel body (1101) is fixedly connected to an ink tube (13), and one end of the ink tube (13) extends through the heat-insulating outer shell (1102) and is connected to the water inlet pipe of the second pump body (10).

3. According to claim 2, a high temperature resistant uninterrupted circulation ink system is characterized in that: The oven mechanism (12) comprises an oven body (1201), a circulating hot air blower (1211) is fixedly mounted on one end of the upper surface of the oven body (1201), an air outlet of the circulating hot air blower (1211) is fixedly connected to an air duct (1212), the air duct (1212) is fixedly mounted inside the side wall of the oven body (1201), and a plurality of filters (1204) matching the air duct (1212) are symmetrically mounted on the inner side of the oven body (1201), and the outer surfaces of the plurality of filters (1204) are all mounted with limiter components matching the oven body (1201), and a plurality of auxiliary temperature control components are mounted on the rear side of the inner wall of the oven body (1201).

4. The high temperature resistant uninterrupted circulation ink system according to claim 3, characterized in that: The limiting assembly comprises an installation frame (1203) which is sleeved and fixedly connected to the outer surface of the filter screen (1204); the top side wall and the bottom side wall of the installation frame (1203) are fixedly connected to springs (1207); one end of each of the two springs (1207) is fixedly connected to a clamping block (1206); the outer surfaces of the two clamping blocks (1206) are clamped to the inside of the side wall of the oven body (1201); and one side of the outer surfaces of the two clamping blocks (1206) is fixedly connected to a dial plate (1205); one end of each of the two dial plates (1205) extends through and to the outside of the installation frame (1203).

5. The high temperature resistant uninterrupted circulation ink system according to claim 4, characterized in that: The auxiliary temperature control component includes a temperature sensor (1208) fixedly mounted on the rear side of the inner wall of the oven body (1201), and a heating rod (1209) matching with the temperature sensor (1208) is fixedly mounted on the inner wall of the oven body (1201) and located on one side of the temperature sensor (1208).

6. The high temperature resistant uninterrupted circulation ink system according to claim 5, characterized in that: The hot air transmission component comprises an exhaust fan (1210) fixedly mounted on the rear side of the inner wall of the oven body (1201), and a duct (1104) matching with the exhaust fan (1210) is fixedly connected to the back side of the oven body (1201), one end of the duct (1104) is connected to the interior of the heat-insulating outer shell (1102), and an air outlet pipe (1103) matching with the duct (1104) is fixedly connected to the top of the heat-insulating outer shell (1102), and a valve body (1105) is fixedly mounted in the middle of the duct (1104).

7. The high temperature resistant uninterrupted circulation ink system according to claim 6, characterized in that: An air duct (1213) matching the air duct (1212) is provided inside the oven body (1201).

8. The high temperature resistant uninterrupted circulation ink system according to claim 7, characterized in that: A plurality of air inlets matching the filter screen (1204) are provided on the side wall between the oven body (1201) and the air duct (1213).

9. The high temperature resistant uninterrupted circulation ink system according to claim 8, characterized in that: The inner wall of the oven body (1201) is fixedly connected with a plurality of partitions (1202) for installing the ink circulation system, and the front of the oven body (1201) is fixedly installed with a control panel (15), and the control panel (15) is electrically connected to the first positive and negative pressure generator (1), the second positive and negative pressure generator (6), the auxiliary temperature control component and the ink circulation system.

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