Printing device capable of discharging ink uniformly

Abstract

The printing device comprises an ink box arranged in a printing machine, the ink box is connected with a printing roller through a connecting pipe, a stirring shaft is arranged in the ink box in a rotating mode, a stirring rod is installed on the stirring shaft, a liquid pumping box is arranged above the ink box through a supporting mechanism, a liquid storage cavity is formed in the stirring shaft, and the stirring rod is installed on the stirring shaft. A plurality of liquid outlets are formed in the stirring shaft, a rotating cavity and a movable cavity are formed in the liquid pumping box, a reciprocating lead screw is rotationally arranged in the rotating cavity, a power mechanism connected with the reciprocating lead screw is arranged on the ink box, the reciprocating lead screw is connected with the stirring shaft through the rotating mechanism, and a piston plate is arranged in the movable cavity; the piston plate is connected with the reciprocating lead screw through a connecting mechanism. Due to the arrangement of the stirring shaft and the stirring rod and the continuous and uniform supplement of new ink, ink precipitation and component separation are effectively prevented, and it is ensured that ink is discharged uniformly all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of printing devices, in particular to a printing device with uniform ink output. Background Art

[0002] A printing device is a device that can transfer ink or other printing materials to a substrate (such as paper, plastic, cloth, etc.) in the form of a specific pattern, text or image. Common printing devices include offset printing presses, gravure printing presses, letterpress printing presses, screen printing presses, and digital printing presses. These devices are usually composed of an ink supply system, printing components (such as printing plates, printing rollers, etc.), a transmission system, and a control system.

[0003] In the prior art, common printing devices do not have auxiliary components for stirring the ink. As a result, the following conditions may occur during the use of the ink: the pigment, solvent and other components in the ink may precipitate or separate due to factors such as gravity and standing time. For example, the pigment particles may gradually sink to the bottom of the ink cartridge, causing the ink color in the upper part to become lighter and the ink concentration in the lower part to be too high, ultimately leading to uneven ink output. In order to improve this situation, a printing device with uniform ink output is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a printing device with uniform ink output.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A printing device with uniform ink output comprises an ink cartridge arranged in a printing machine, the ink cartridge is connected to a printing roller through a connecting tube, a stirring shaft is rotatably provided in the ink cartridge, a stirring rod is installed on the stirring shaft, a pump liquid box is provided above the ink cartridge through a supporting mechanism, a liquid storage cavity is provided inside the stirring shaft, a plurality of liquid outlets are provided on the stirring shaft, a rotating cavity and a movable cavity are provided in the pump liquid box, a reciprocating screw is rotatably provided in the rotating cavity, a power mechanism connected to the reciprocating screw is provided on the ink cartridge, the reciprocating screw is connected to the stirring shaft through a rotating mechanism, a piston plate is provided in the movable cavity, the piston plate is connected to the reciprocating screw through a connecting mechanism, and a liquid outlet pipe and a liquid inlet pipe are installed on the pump liquid box.

[0007] Preferably, the supporting mechanism comprises a supporting frame mounted on the upper end surface of the ink cartridge, and the pump liquid box is mounted on the supporting frame by bolts.

[0008] Preferably, the power mechanism comprises a drive motor arranged on the upper end surface of the ink cartridge, and the output shaft of the drive motor is fixedly connected to the end of the reciprocating screw.

[0009] Preferably, the rotating mechanism comprises a driving gear mounted on the reciprocating screw, and a transmission gear is provided on the stirring shaft, and the driving gear is meshed with the transmission gear.

[0010] Preferably, the connection mechanism comprises a connection frame threadedly sleeved on the reciprocating screw, and the end of the connection frame is fixedly connected to the piston plate.

[0011] Preferably, the liquid outlet pipe rotates through the stirring shaft and extends into the liquid storage chamber, and a first one-way valve is provided in the liquid outlet pipe.

[0012] Preferably, an electric valve is provided in the connecting pipe, and a second one-way valve is provided in the liquid inlet pipe.

[0013] Preferably, the interior of the ink cartridge is conical, and the lengths of the plurality of stirring rods decrease from top to bottom.

[0014] Beneficial effects of the utility model:

[0015] 1. Good ink uniformity: The setting of the stirring shaft and stirring rod, as well as the continuous and uniform replenishment of new ink, effectively prevents ink precipitation and component separation, ensuring that the ink is always uniform.

[0016] 2. High printing quality: Uniform ink discharge enables high-precision printing, whether it is fine lines or complex patterns, they can be presented clearly, accurately and fully.

[0017] 3. Reduce costs: reduce waste and defective products caused by uneven ink color, improve ink utilization, and reduce production costs.

[0018] 4. Good equipment stability: Uniform ink quality reduces wear and blockage of printing nozzles and other components, extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of a printing device with uniform ink output proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the vertical cross-section structure of a printing device with uniform ink output proposed by the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0022] Figure 4 It is a schematic diagram of the structure of components such as a drive motor and a stirring shaft;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure viewed from above.

[0024] In the figure: 1 ink cartridge, 2 connecting pipe, 3 stirring shaft, 4 stirring rod, 5 liquid storage chamber, 6 liquid outlet, 7 driving motor, 8 support frame, 9 pump liquid box, 10 rotating chamber, 11 movable chamber, 12 reciprocating screw, 13 connecting frame, 14 driving gear, 15 transmission gear, 16 liquid outlet pipe, 17 liquid inlet pipe, 18 piston plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-5 , a printing device with uniform ink output, an ink cartridge 1 is carefully arranged inside the printing machine, and the ink cartridge 1 is tightly connected to the crucial printing roller through a connecting tube 2, providing a reliable channel for smooth ink transmission. The above-mentioned ink cartridge 1 can be installed at a suitable position inside the housing of the printing device by a technician in this field. The remaining equipment components of the printing device are not drawn or described in this scheme. For details, please refer to the prior art disclosure.

[0027] The stirring shaft 3 rotatably arranged inside the ink cartridge 1 is like a core hub, and the stirring rod 4 installed thereon plays a key role.

[0028] A pump liquid box 9 is provided above the ink cartridge 1 through a supporting mechanism. The supporting mechanism is specifically a supporting frame 8 installed on the upper end surface of the ink cartridge 1. The pump liquid box 9 is firmly installed on the supporting frame 8 through strong bolts, ensuring the stability of the overall structure.

[0029] A unique liquid storage chamber 5 is provided inside the stirring shaft 3, and a plurality of carefully designed liquid outlets 6 are provided on the stirring shaft 3. The pump liquid box 9 is divided into two important areas: a rotating chamber 10 and a movable chamber 11. A reciprocating screw 12 is provided for rotation in the rotating chamber 10, and a powerful power mechanism, a driving motor 7, is provided on the ink cartridge 1. The output shaft of the driving motor 7 is fixedly connected to the end of the reciprocating screw 12, providing a continuous source of power for the entire system.

[0030] The reciprocating screw 12 is connected to the stirring shaft 3 through an ingenious rotating mechanism. The rotating mechanism includes a driving gear 14 installed on the reciprocating screw 12, and a transmission gear 15 that precisely matches the reciprocating screw 12 is provided on the stirring shaft 3. The driving gear 14 and the transmission gear 15 are perfectly meshed, ensuring effective transmission and precise control of power.

[0031] A piston plate 18 is provided in the movable chamber 11, and the piston plate 18 is connected to the reciprocating screw 12 through a connecting mechanism. The connecting mechanism includes a connecting frame 13 threadedly sleeved on the reciprocating screw 12, and the end of the connecting frame 13 is fixedly connected to the piston plate 18. This design makes the movement of the piston plate 18 precise and stable.

[0032] The liquid outlet pipe 16 installed on the pump liquid box 9 rotates through the stirring shaft 3 and extends into the liquid storage chamber 5. The first one-way valve to ensure one-way flow is arranged in the liquid outlet pipe 16. An electric valve capable of intelligent control is arranged in the connecting pipe 2, and a second one-way valve is arranged in the liquid inlet pipe 17 to ensure the directionality and controllability of the ink flow.

[0033] The unique design of the interior of the ink cartridge 1 being conical and the multiple stirring rods 4 decreasing in length from top to bottom makes the stirring more uniform and comprehensive without dead angles.

[0034] When the utility model is used, when the printing device starts to work, the driving motor 7 is started, and its output shaft drives the reciprocating screw 12 to rotate in the rotating chamber 10. Due to the rotation of the reciprocating screw 12, the piston plate 18 connected to it through the connecting frame 13 reciprocates in the active chamber 11. When the piston plate 18 moves downward, under the action of negative pressure, the external ink is sucked into the active chamber 11 through the liquid inlet pipe 17 (the second one-way valve in the liquid inlet pipe 17 allows the ink to enter in one direction); when the piston plate 18 moves upward, the ink in the active chamber 11 is squeezed and enters the liquid storage chamber 5 of the stirring shaft 3 through the liquid outlet pipe 16 (the first one-way valve in the liquid outlet pipe 16 ensures the one-way outflow of the ink), and then flows out from the liquid outlet 6 on the stirring shaft 3 into the ink cartridge 1. At the same time, the driving gear 14 on the reciprocating screw 12 is meshed with the transmission gear 15 on the stirring shaft 3 to drive the stirring shaft 3 to rotate. The stirring rod 4 with decreasing length on the stirring shaft 3 stirs the ink in the ink cartridge 1 so that the newly added ink is fully mixed with the original ink to prevent the ink from settling or separating its components.

[0035] Since the interior of the ink cartridge 1 is conical, this shape helps the ink to flow and mix more smoothly during the stirring process. When printing is required, the electric valve in the connecting pipe 2 is opened, and the uniformly mixed ink is transported from the ink cartridge 1 to the printing roller through the connecting pipe 2 to achieve a printing effect with uniform ink output.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing device with uniform ink output, comprising an ink cartridge (1) arranged in a printing press, characterized in that: The ink cartridge (1) is connected to a printing roller via a connecting tube (2); a stirring shaft (3) is rotatably provided in the ink cartridge (1); a stirring rod (4) is mounted on the stirring shaft (3); a pump liquid box (9) is mounted above the ink cartridge (1) via a supporting mechanism; a liquid storage chamber (5) is arranged inside the stirring shaft (3); a plurality of liquid outlets (6) are arranged on the stirring shaft (3); a rotating chamber (10) and a movable chamber (11) are arranged in the pump liquid box (9); a reciprocating screw (12) is rotatably provided in the rotating chamber (10); a power mechanism connected to the reciprocating screw (12) is provided on the ink cartridge (1); the reciprocating screw (12) is connected to the stirring shaft (3) via a rotating mechanism; a piston plate (18) is arranged in the movable chamber (11); the piston plate (18) is connected to the reciprocating screw (12) via a connecting mechanism; a liquid outlet pipe (16) and a liquid inlet pipe (17) are mounted on the pump liquid box (9).

2. A printing device with uniform ink output according to claim 1, characterized in that: The supporting mechanism comprises a supporting frame (8) mounted on the upper end surface of the ink cartridge (1), and the pump liquid box (9) is mounted on the supporting frame (8) by means of bolts.

3. A printing device with uniform ink output according to claim 2, characterized in that: The power mechanism comprises a driving motor (7) arranged on the upper end surface of the ink cartridge (1), and the output shaft of the driving motor (7) is fixedly connected to the end of the reciprocating screw (12).

4. A printing device with uniform ink output according to claim 3, characterized in that: The rotating mechanism comprises a driving gear (14) mounted on a reciprocating screw (12), a transmission gear (15) is provided on the stirring shaft (3), and the driving gear (14) is meshed with the transmission gear (15).

5. A printing device with uniform ink output according to claim 4, characterized in that: The connection mechanism comprises a connection frame (13) threadedly sleeved on a reciprocating screw (12), and an end of the connection frame (13) is fixedly connected to a piston plate (18).

6. A printing device with uniform ink output according to claim 5, characterized in that: The liquid outlet pipe (16) rotates to penetrate the stirring shaft (3) and extends into the liquid storage chamber (5), and a first one-way valve is provided in the liquid outlet pipe (16).

7. A printing device with uniform ink output according to claim 6, characterized in that: An electric valve is provided in the connecting pipe (2), and a second one-way valve is provided in the liquid inlet pipe (17).

8. A printing device with uniform ink output according to claim 7, characterized in that: The interior of the ink cartridge (1) is conical, and the lengths of the plurality of stirring rods (4) decrease from top to bottom.

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