Ink receiving structure with sealing function and ink-jet ink-jet printer

Abstract

The utility model provides an ink receiving structure with a sealing function and an ink-jet ink-jet printer, and relates to the technical field of ink-jet ink-jet printers, the ink receiving structure comprises an ink receiving body, the ink receiving body is provided with a through hole used for fixing, the through hole is taken as a circle center, an arc groove and a sealing part are arranged along the arc direction of the ink receiving body, and a nozzle is arranged right above the arc groove. According to the structure, the ink receiving amount is increased, the sealing function is achieved, the utilization rate of ink (ink) is increased, the lifting function is matched, and the requirement for convenience of material belt replacement in use is met.

Description

Technical Field

[0001] The utility model relates to the technical field of ink jet printers, in particular to a mechanism with sealing and ink receiving functions for a nozzle of an ink jet printer. Background Art

[0002] There are two main categories of soft package coding machines in the market: thermal transfer printers and inkjet printers. Among them, inkjet printers have always dominated the market with their price advantage. Failure of inkjet printers is a common problem, the most important of which is the blockage of the injector (nozzle) hole. Because the nozzle of the injector is small and has not been used for a long time, the ink (ink) is deposited, accumulated, and solidified around the nozzle, causing the nozzle to fail. The circulating flow system keeps the ink in a circulating state, which can effectively alleviate the above problems, but undoubtedly increases the complexity of the structure and the manufacturing cost. The usual practice is to perform regular maintenance and servicing. Including cleaning and unblocking the nozzle. Usually, the diameter of the nozzle is below the millimeter level. If you are not careful, the nozzle is easily damaged.

[0003] In addition, frequent unclogging of the nozzles causes ink loss. Utility Model Content

[0004] The main purpose of the utility model is to solve the above-mentioned technical problems.

[0005] According to the utility model, an ink receiving structure with a sealing function is proposed, comprising an ink receiving body, wherein a through hole for fixing is provided on the ink receiving body, an arc groove and a sealing portion are provided along the arc direction of the ink receiving body with the through hole as the center of the circle, and the nozzle is located directly above the arc groove.

[0006] Preferably, the circular arc groove has an inner arc end, an outer arc end, a starting end and an ending end, the inner arc end corresponds to the outer arc end, the starting end corresponds to the ending end, and the circular arc groove has an inclined bottom surface.

[0007] Preferably, the bottom surface is inclined from the inner arc end side to the outer arc end side.

[0008] Preferably, the bottom surface is inclined from the starting end side to the ending end side.

[0009] Preferably, the cross-section of the bottom surface is convex.

[0010] Preferably, a water inlet is provided on the starting end side, and a water outlet is provided on the terminating end side.

[0011] Preferably, the sealing portion comprises a groove and a sealing rubber pad arranged in the groove, and the depth of the groove is less than the minimum depth of the circular arc groove.

[0012] Preferably, the arc groove and / or the sealing portion are arranged at intervals along arcs of different radii.

[0013] The present application also proposes an inkjet printer, comprising the above-mentioned ink receiving structure, and also comprising a substrate, a stepping motor and a lifting motor arranged on the substrate, the lifting motor being arranged in a horizontal direction, and its output shaft end being connected to a synchronous wheel, a roller being arranged on the substrate directly below the synchronous wheel, the synchronous wheel being connected to the roller via a synchronous belt, a slide rail being arranged between the synchronous wheel and the roller, a slider being slidably arranged on the slide rail, the slider being connected to the synchronous belt, the slider being connected to an injector, and the injector having a nozzle;

[0014] The stepper motor is vertically arranged on the substrate, and an output shaft end of the stepper motor is connected to the ink receiving structure.

[0015] Preferably, it further comprises a control unit, which is electrically connected to the stepper motor, the lifting motor and the injector, and controls the stepper motor, the lifting motor and the injector to work in coordination.

[0016] The technical solution of the utility model proposes an ink receiving structure, including an ink receiving body, a through hole for fixing is provided on the ink receiving body, a circular arc groove and a sealing part are provided along the circular arc direction of the ink receiving body with the through hole as the center of the circle, and the nozzle is located directly above the circular arc groove. The structure increases the ink receiving amount, has a sealing function, improves the utilization rate of ink, and cooperates with the lifting function to meet the convenience demand of replacing the material belt during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] With reference to the accompanying drawings, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present utility model.

[0018] Figure 1 It is a schematic diagram of the ink receiving structure involved in an embodiment of the utility model.

[0019] Figure 2 It is a cross-sectional view of the arc groove involved in the embodiment of the utility model.

[0020] Figure 3 It is a cross-sectional view of another arc groove involved in an embodiment of the utility model.

[0021] Figure 4 It is a cross-sectional view of another arc groove involved in an embodiment of the utility model.

[0022] Figure 5 It is a cross-sectional view of another arc groove involved in an embodiment of the utility model.

[0023] Figure 6 It is a cross-sectional view of another arc groove involved in an embodiment of the utility model.

[0024] Figure 7 It is a schematic diagram of another ink receiving structure involved in an embodiment of the utility model.

[0025] Figure 8 The utility model relates to an inkjet printer.

[0026] Fig. 9 This is the injector (including the nozzle) involved in the embodiment of the utility model.

[0027] Description of Figure Numbers:

[0028] 10, 20, ink receiving structure;

[0029] 11. The ink receiving body;

[0030] 111, through hole;

[0031] 112, arc groove; 112a, inner arc; 112b, outer arc; 112c, starting end; 112d, ending end; 1121, bottom surface;

[0032] 113, sealing portion; 1131, groove; 1132, sealing rubber pad;

[0033] 12. Nozzle;

[0034] 30. Stepper motor;

[0035] 40. Lifting motor; 41. Synchronous wheel; 42. Roller;

[0036] 50. substrate; 51. slider; 52. slide rail;

[0037] 60. Injector.

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0040] For inkjet printers, an ink receiving piece is usually set at the front end of the nozzle, which is driven by a cylinder or a motor to rotate to receive ink. Since the ink receiving position of the ink receiving piece remains unchanged, the ink (ink) is deposited on the ink receiving piece, resulting in a decrease in the amount of ink received. At the same time, the deposited and dried toner is easily blocked if it is not cleaned in time; on the other hand, in order to prevent the ink receiving piece from scratching the nozzle, there is a gap between the ink receiving piece and the nozzle. When the nozzle is exposed to the air, the ink is easy to dry and solidify quickly, blocking the nozzle. When it is used again, the nozzle needs to be cleaned and unblocked again, resulting in ink loss.

[0041] The present application discloses an ink receiving structure, wherein the ink receiving structure 10 is a fan-shaped sheet structure, such as Figure 1 As shown, the ink receiving structure 10 has a certain thickness, and includes an ink receiving body 11, on which a through hole 111 is provided, and the ink receiving body 11 is connected to the output shaft of the stepper motor. Preferably, the through hole 111 is arranged at the center of the ink receiving body 11; with the through hole 111 as the center, an arc groove 112 and a sealing portion 113 are provided along the arc direction (circumferential direction) on the ink receiving body 11, wherein the arc groove 112 has a certain depth and can accommodate relatively more ink.

[0042] The bottom surface 1121 of the arc groove 112 includes a flat surface and an inclined surface. When the bottom surface 1121 is an inclined surface, see Figure 2 , 3 , 4, 5 and 6, the inclination angle is 1°-8°, preferably, 4°-8°, and more preferably, 4°-6°.

[0043] The arc groove 112 has an inner arc end 112a and an outer arc end 112b, a starting end 112c and an ending end 112d, and the inclination direction of the bottom surface 1121 of the arc groove 112 includes: (i) inclination from the inner arc end 112a to the outer arc end 112b; (ii) inclination from the starting end 112c to the ending end 112d.

[0044] (i) Inclined from the inner arc end 112a to the outer arc end 112b

[0045] It can be seen that when the inner arc end 112a side of the bottom surface 1121 is lower than the outer arc end 112b side, as shown in FIG. Figure 2 As shown, the ink in the arc groove 112 flows and converges toward the inner arc end 112a (toward the center of the circle), which is convenient for collection and cleaning.

[0046] (ii) Inclined from the starting end 112c to the ending end 112d

[0047] When the starting end 112c side of the bottom surface 1121 is higher than the ending end 112d side, as shown in FIG. Figure 5 As shown, the ink in the arc groove 112 flows along the arc direction toward the terminal end 112d, which is convenient for collection and cleaning.

[0048] A water inlet may be provided at the starting end 112 side, and a water outlet may be provided at the terminating end 112d to achieve automatic and timely cleaning.

[0049] Compared with conventional ink receiving sheets, the above structure has a larger ink receiving capacity and is more convenient to clean. It should be noted that the above tilting direction can be set in the opposite direction ( Figure 3 and Figure 6 ),for Figure 6 In this case, the water inlet and outlet are set in the opposite direction accordingly.

[0050] The cross section of the bottom surface 1121 is convex, such as Figure 4 As shown, it includes a raised portion 1121a and a horizontal portion 1121b. The raised portion 1121a has an inclined surface inclined to both sides. Ink drops on the raised portion 1121a and gathers to both sides, and finally gathers together by the horizontal portion 1121b. After cleaning, it is discharged through the water outlet.

[0051] The sealing portion 113 includes a groove 1131 and a sealing rubber pad 1132 disposed in the groove 1131. The depth of the groove 1131 is less than the minimum depth of the arc groove 112. A connecting hole (not shown in the figure) is provided between the groove 1131 and the arc groove 112. When the sealing rubber pad 1132 is cleaned, ink can flow into the arc groove 112 through the connecting hole and finally be discharged from the water outlet.

[0052] The nozzle 12 is located above the ink receiving body 11 and is located directly above the arc where the arc groove 112 (sealing portion 113) is located. The nozzle 12 can move vertically up and down relative to the arc.

[0053] Working principle: When it is necessary to receive ink, the nozzle is controlled to move to the set position, and then the stepper motor is controlled to run. The stepper motor drives the ink receiving structure to rotate at a preset angle so that the arc groove (sealing part) is located directly below the nozzle. Since the nozzle is located directly above the arc of the ink receiving body where the arc groove (sealing part) is located, the arc groove (sealing part) can be rotated to the preset position by controlling the rotation angle of the stepper motor. After completing the ink receiving, the stepper motor is controlled to rotate in the opposite direction to reset the ink receiving structure, and the nozzle can continue to spray ink. The stepper motor can achieve a certain angle staggered at each ink receiving position through the control system to avoid interference with the nozzle and affect the quality of subsequent inkjet work. When the inkjet work is completed, the nozzle needs to be sealed, the stepper motor is controlled to run, the sealing part is rotated to the bottom of the nozzle, and then the nozzle is controlled to move in the vertical direction so that the nozzle contacts the sealing rubber pad of the sealing part, the nozzle is sealed, and the air is isolated to prevent the ink in the nozzle from drying and solidifying.

[0054] The present application discloses another ink receiving structure, which is generally similar to the ink receiving structure 10, and therefore, the same reference numerals are used for structures having the same functions. Figure 1 The difference is that, see Figure 7 , with the through hole 111 as the center, arc grooves 112 and sealing parts 113 are arranged at intervals along the arc direction close to the center, and the structures of the arc grooves 112 and the sealing parts 113 are the same as those of the above-mentioned embodiment. Among them, the stepper motor can be close to or away from the nozzle in the horizontal direction (such as the stepper motor is arranged on a guide rail or a slide plate), ensuring that the arc (ink receiving body) where the arc groove or the sealing rubber pad is located is located directly below the nozzle.

[0055] This application discloses an inkjet printer, see Figure 8 , including a substrate 50, a stepper motor 30 and a lifting motor 40 arranged on the substrate 50, the lifting motor 40 is horizontally arranged above the stepper motor 30, the output shaft end of the lifting motor 40 is connected to a synchronous wheel 41, a roller 42 is arranged on the substrate 50 directly below the synchronous wheel 41, a slide rail 52 is arranged between the synchronous wheel 41 and the roller 42, the slide rail 52 is arranged on the substrate 50, a slider 51 is slidably arranged on the slide rail 52, a synchronous belt is arranged on the synchronous wheel 41 and the roller 42, the synchronous belt is connected to the slider 51, and an injector 60 of the inkjet printer is arranged on the slider 51 ( Fig. 9 The stepper motor 30 is vertically arranged on the substrate 50, and the output shaft end of the stepper motor 30 is connected to the ink receiving structure 10. The ink receiving structure 10 has the same structure as that in the above embodiment. The inkjet printer further includes a control unit, and the stepper motor 30, the lifting motor 40, and the injector 60 are all electrically connected to the control unit.

[0056] The lifting motor 40 on the substrate 50 drives the synchronous wheel 41 to rotate, and drives the synchronous belt on the synchronous wheel 41 to move. The synchronous belt is arranged in a vertical direction and is connected to the slider 51 arranged on the slide rail 52, and further drives the slider 51 to move in the vertical direction. The ejector 60 of the inkjet printer is arranged on the slider 51. Therefore, the ejector 60 can be moved up and down in the vertical direction by controlling the operation (forward and reverse) of the lifting motor 40. A nozzle 12 (not shown in the figure) is arranged in the ejector 60, and the nozzle 12 is controlled to be located above the arc groove 112 or the sealing portion 113 of the ink receiving structure 10.

[0057] The stepper motor 30 on the substrate 50 drives the ink receiving structure 10 to rotate, controls the rotation angle of the ink receiving structure 10, and makes the nozzle 12 located at different positions above the arc groove 112. When a sealing operation is required, the ink receiving structure 10 is controlled to continue to rotate, so that the sealing part 113 is located directly below the nozzle 12, and the lifting motor 40 is controlled to work, and the ejector 60 moves downward, so that the nozzle 12 contacts the sealing rubber pad 1132 of the sealing part 113 to achieve sealing.

[0058] The control unit controls the stepping motor 30 , the lifting motor 40 , and the ejector 60 to work in coordination.

[0059] Inkjet printers include continuous inkjet, ink-on-demand and laser types. The ink-on-demand type is divided into piezoelectric and bubble types. Taking the piezoelectric type as an example, the injector mainly includes fixed iron core, electromagnetic coil, moving iron core, iron core connector, electromagnetic valve, nozzle and other components. The moving iron core moves up and down under the control of the electromagnetic coil to realize the opening and closing of the injector nozzle. The ink flows into the solenoid valve cavity from the hole in the iron core, and the ink droplets are dispersed under high pressure and ejected from the nozzle. Among them, the diameter of the nozzle is about 0.3mm and the length of the nozzle is about 5mm.

[0060] The nozzle is a key component of the injector, and the contact between the nozzle and the sealing part needs to be precisely controlled. It can be seen that the lifting motor involved in the embodiment includes a stepper motor, a servo motor, a linear motor, etc., preferably a stepper motor and a linear motor, which can protect the nozzle from scratches.

Claims

1. An ink receiving structure with a sealing function, comprising an ink receiving body (11), characterized in that: The ink receiving body (11) is provided with a through hole (111) for fixing, and an arc groove (112) and a sealing portion (113) are provided along the arc direction of the ink receiving body (11) with the through hole (111) as the center of the circle, and the nozzle (12) is located directly above the arc groove (112).

2. The ink receiving structure according to claim 1, characterized in that: The circular arc groove (112) comprises an inner arc end (112a), an outer arc end (112b), a starting end (112c) and a terminating end (112d); the inner arc end (112a) corresponds to the outer arc end (112b), the starting end (112c) corresponds to the terminating end (112d); and the circular arc groove (112) comprises an inclined bottom surface (1121).

3. The ink receiving structure according to claim 2, characterized in that: The bottom surface (1121) is inclined from the inner arc end (112a) side to the outer arc end (112b) side.

4. The ink receiving structure according to claim 2, characterized in that: The bottom surface (1121) is inclined from the starting end (112c) side to the ending end (112d) side.

5. The ink receiving structure according to claim 2, characterized in that: The cross section of the bottom surface (1121) is convex.

6. The ink receiving structure according to any one of claims 2 to 5, characterized in that: The starting end (112c) is provided with a water inlet, and the ending end (112d) is provided with a water outlet.

7. The ink receiving structure according to claim 1, characterized in that: The sealing portion (113) comprises a groove (1131) and a sealing rubber pad (1132) arranged in the groove (1131); the depth of the groove (1131) is less than the minimum depth of the circular arc groove (112).

8. The ink receiving structure according to claim 7, characterized in that: The circular arc grooves (112) and / or the sealing portions (113) are arranged at intervals along circular arcs of different radii.

9. An inkjet printer, comprising the ink receiving structure according to any one of claims 1 to 8, characterized in that: It also comprises a substrate (50), a stepping motor (30) and a lifting motor (40) arranged on the substrate (50), the lifting motor (40) being arranged in a horizontal direction, and an output shaft end of the lifting motor (40) being connected to a synchronous wheel (41), a roller (42) being arranged on the substrate (50) directly below the synchronous wheel (41), the synchronous wheel (41) and the roller (42) being connected via a synchronous belt, a slide rail (52) being arranged between the synchronous wheel (41) and the roller (42), a slider (51) being slidably arranged on the slide rail (52), the slider (51) being connected to the synchronous belt, the slider (51) being connected to an injector (60), and the injector (60) having a nozzle (12); The stepping motor (30) is arranged on the substrate (50) in a vertical direction, and an output shaft end thereof is connected to the ink receiving structure.

10. The inkjet printer according to claim 9, characterized in that: It also includes a control unit, which is electrically connected to the stepper motor (30), the lifting motor (40) and the injector (60), and controls the stepper motor (30), the lifting motor (40) and the injector (60) to work in coordination.

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