Printing ink recovery device of printing machine

Abstract

The utility model discloses an ink recovery device of a printing machine, in particular to the printing machine, which comprises a scraper piece tangent to a printing roller, the scraper piece is of a single-blade structure, and the facing direction of a blade face is opposite to the rotating direction of the printing roller; the blade face is provided with a plurality of isosceles trapezoid blocks arranged in a linear array mode, a water tracing gully groove is formed between every two isosceles trapezoid blocks, a certain distance is kept between the isosceles trapezoid blocks arranged in the linear array mode and the cutting edge of the scraper piece to form a water storage groove, and the water storage groove is communicated with the water tracing gully grooves. A groove is formed in the end, opposite to the cutting edge, of the blade face and communicates with the water tracing gully grooves. A composite rod piece driven to rotate is rotationally arranged in the groove, and the input end of the suction pump is communicated with one end of the composite rod piece. The ink scraping device is simple in structure, convenient and fast to operate and capable of optimizing the recovery amount of scraped ink.

Description

Technical Field

[0001] The utility model relates to a printing press, in particular to an ink recovery device of a printing press. Background Art

[0002] The ink fountain assembly of a printing press is a system used to transfer ink to the printing plate, usually including components such as the ink fountain, roller and scraper.

[0003] According to the publication (announcement) number: CN116728955B, the publication (announcement) date: 2023-12-12, an end ink fountain assembly and an inking mechanism are disclosed, including a wall panel, an upper ink fountain, a first quick-release device, an end face ink scraping assembly, a lower ink fountain, a second quick-release device and an ink scraping block. Two symmetrically arranged upper ink fountains are respectively arranged on the wall panel through the first quick-release device, and a first arc-shaped notch is provided on the side of the upper ink fountain away from the wall panel. The end face ink scraping assembly includes a shell connected to the wall panel and located between the two upper ink fountains, two side scrapers symmetrically arranged on both sides of the shell, and a flat scraper arranged in the shell. The lower ink fountain is arranged on the wall panel through the second quick-release device and is located below the two upper ink fountains. An ink discharge pipe is connected to the bottom of the lower ink fountain, two ink scraping blocks are arranged on the wall panel, and a filter is provided in the lower ink fountain.

[0004] In the prior art including the above patents, the scraped ink is recovered for secondary use. The scraper is directly used for scraping, and then the ink accumulated on the scraper during the scraping process is recovered. The ink recovery method is too extensive, and the recovered accumulated ink needs to reach a predetermined amount. Summary of the invention

[0005] The utility model aims to provide an ink recovery device for a printing press, which is used to solve the above problems.

[0006] In order to achieve the above object, the utility model provides the following technical solution: a printing press ink recovery device, comprising a scraper member tangent to a printing roller, the scraper member is a single-edged structure, and the blade surface faces in the opposite direction to the rotation direction of the printing roller;

[0007] The blade surface is provided with a plurality of isosceles trapezoidal blocks arranged in a linear array, and a water-traveling groove is formed between every two of the isosceles trapezoidal blocks, and the plurality of isosceles trapezoidal blocks arranged in a linear array maintain a certain distance from the blade edge of the scraper member to form a water storage groove, and the water storage groove is connected with the plurality of the water-traveling grooves;

[0008] A groove is provided on one end of the blade surface opposite to the cutting edge, and the groove is connected to a plurality of upstream grooves;

[0009] A composite rod driven to rotate is rotatably arranged in the groove, and also includes a suction pump, wherein the input end of the suction pump is connected with one end of the composite rod.

[0010] Preferably, the upstream ravine is divided into a frustum-shaped structure according to its shape, and the frustum-shaped structure includes a narrow mouth and a wide mouth, and the narrow mouth is connected to the water storage tank.

[0011] Preferably, the isosceles trapezoidal block is tangent to the composite rod.

[0012] Preferably, the composite rod comprises a felt cloth wrapped around the outside of the grid frame and a copper tube with a spiral flow channel opened on the outer wall. A predetermined distance is maintained between the copper tube and the grid frame to form a flow cavity.

[0013] Preferably, the composite rod comprises a core rod, and side fixing pieces connected to the felt cloth, the grid frame and the end of the copper tube are respectively fixedly mounted on both ends of the core rod.

[0014] Preferably, it further comprises a cabin box, which is installed in a mounting groove provided on the scraper member, wherein a worm meshing with a worm gear is arranged in the cabin box, and the worm gear is fixedly connected to the side fixing member;

[0015] A liquid transfer box is arranged in the cabin box, a pulsator fixedly connected to the worm is arranged in the liquid transfer box, and one end of the input end flow cavity of the liquid transfer box is connected.

[0016] Preferably, the isosceles trapezoidal block is a steel plate.

[0017] In the above technical scheme, the utility model provides a printing ink recovery device, which has the following beneficial effects: the scraper member scrapes off the paint on the surface of the printing roller, and the ink after scraping accumulates in the water storage tank, and then flows up from the upstream trough to the groove as it accumulates, and the composite rod member driven to rotate merges with the ink that flows up to the groove, and is connected as a whole under tension. At this time, the suction pump operates to suck the ink into the composite rod member and then is discharged, thereby reducing the requirement for the amount of recovered accumulated ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the implementation structure provided for an embodiment of the utility model;

[0020] Figure 2 The embodiment of the utility model provides Figure 1 Schematic diagram of explosion structure;

[0021] Figure 3 A schematic diagram of the exploded structure of a composite rod provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of a cross-sectional structure of a composite rod provided in an embodiment of the utility model;

[0023] Figure 5 A schematic structural diagram of a worm, a worm wheel, a liquid transfer box and an impeller provided in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Scraper; 2. Isosceles trapezoidal block; 3. Upstream ravine; 4. Water storage tank; 5. Groove; 6. Composite rod; 61. Grille frame; 62. Felt cloth surround; 631. Spiral flow channel; 632. Copper tube; 64. Core rod; 641. Side fixing piece; 70. Worm; 71. Worm wheel; 8. Liquid transfer box; 81. Impeller; 100. Flow chamber. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-5 As shown, a printing press ink recovery device comprises a scraper member 1 tangential to a printing roller, the scraper member 1 is a single-edged structure, and the blade surface faces in the opposite direction to the rotation direction of the printing roller;

[0028] The blade surface is provided with a plurality of isosceles trapezoidal blocks 2 arranged in a linear array, and a water-removing groove 3 is formed between every two isosceles trapezoidal blocks 2, and a certain distance is maintained between the plurality of isosceles trapezoidal blocks 2 arranged in a linear array and the blade edge of the scraper member 1 to form a water storage groove 4, and the water storage groove 4 is connected with the plurality of water-removing grooves 3;

[0029] A groove 5 is provided at one end of the blade surface opposite to the cutting edge, and the groove 5 is connected with a plurality of upstream grooves 3;

[0030] A composite rod 6 driven to rotate is rotatably arranged in the groove 5 , and a suction pump is also included, and an input end of the suction pump is connected to one end of the composite rod 6 .

[0031] Specifically, the isosceles trapezoidal block 2 of the embodiment is a steel plate. The scraper member 4 in the embodiment scrapes the paint on the surface of the printing roller, and the ink after scraping accumulates in the water storage tank 4, and then goes up from the upstream groove 3 to the groove 5 as it accumulates, and the composite rod 6 driven to rotate merges with the ink that goes up to the groove 5, and is connected to form a whole under tension. At this time, the suction pump operates to suck the ink into the composite rod 6 and then is discharged, reducing the amount of ink that needs to be recovered.

[0032] As an embodiment further provided by the present invention, the upstream stream trough 3 is divided into a frustum-shaped structure according to its shape. The frustum-shaped structure includes a narrow mouth and a wide mouth, and the narrow mouth is connected to the water storage tank 4.

[0033] As an embodiment further provided by the present invention, the isosceles trapezoidal block 2 is tangent to the composite rod 6 .

[0034] Specifically, the isosceles trapezoidal block 2 in the embodiment is tangent to the composite rod 6, so the upward flowing ink particles will be connected into one body in a very small amount due to the formation of a water film by tension.

[0035] As another embodiment further provided by the utility model, the composite rod 6 includes a felt cloth enclosure 62 wrapped around the outside of the grid frame 61 and a copper tube 632 with a spiral flow channel 631 opened on the outer wall. A predetermined distance is maintained between the copper tube 632 and the grid frame 61 to form a flow cavity 100.

[0036] Specifically, the composite rod 6 in the embodiment includes a core rod 64, and the felt cloth enclosure 62, the grid frame 61 and the side fixing members 641 fixedly installed at both ends of the core rod 64 at the ends of the copper tube 632. The suction pump in the embodiment sucks the liquid in the flow cavity 100, thereby sucking the ink at the periphery of the felt cloth enclosure 62 into the flow cavity 100, and then spirally flows under the action of the spiral flow channel 631, thereby accelerating the effect of ink suction and entering the flow cavity 100 from the periphery of the felt cloth enclosure 62.

[0037] As another embodiment further provided by the utility model, it also includes a cabin box, which is installed in the installation groove opened on the scraper member 1, and a worm 70 meshing with a worm wheel 71 is arranged in the cabin box, and the worm wheel 71 is fixedly connected to the side fixing member 641;

[0038] A liquid transfer box 8 is arranged in the cabin box, and a pulsator 81 fixedly connected to the worm 70 is arranged in the liquid transfer box 8, and one end of the input end flow cavity 100 of the liquid transfer box 8 is connected.

[0039] Specifically, in the embodiment, the suction pump is connected to the flow chamber 100 through the liquid box 8. When the suction pump is running, the airflow drives the impeller 81 to rotate, and the worm 70 and the worm wheel 71 cooperate to amplify the torque force, thereby driving the composite rod 6 to rotate circumferentially. The composite rod 6 is integrated with the ink particles that have been traced back to the groove 5, and they are connected as a whole under tension. At this time, the suction pump is running to suck the ink particles into the composite rod 6 and then discharged, reducing the amount of ink particles that need to be recovered.

[0040] It should be noted that the ink particles drawn into the flow chamber 100 in the embodiment will pass through the liquid box 8 and then enter the suction pump, and the purpose of mixing can be achieved through the impeller 81. In addition, the composite rod 6 is driven to rotate circumferentially in the embodiment to play a role of suction, that is, the ink particles in the water storage tank 4 are sucked into the upstream groove 3, and then contact the composite rod 6 under the action of the water film.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A printing ink recovery device, comprising a scraper member (1) tangential to a printing roller, characterized in that: The scraper element (1) is a single-edged structure, and the blade surface faces in the opposite direction to the rotation direction of the printing roller; The blade surface is provided with a plurality of isosceles trapezoidal blocks (2) arranged in a linear array, and a water-removing groove (3) is formed between every two of the isosceles trapezoidal blocks (2), and the plurality of isosceles trapezoidal blocks (2) arranged in a linear array maintain a certain distance from the blade edge of the scraper member (1) to form a water storage groove (4), and the water storage groove (4) is connected to the plurality of water-removing grooves (3); A groove (5) is provided at one end of the blade surface opposite to the cutting edge, and the groove (5) is connected to a plurality of upstream grooves (3); A composite rod member (6) driven to rotate is rotatably arranged in the groove (5), and also includes a suction pump, wherein an input end of the suction pump is connected to one end of the composite rod member (6).

2. A printing press ink recovery device according to claim 1, characterized in that: The upstream stream trough (3) is divided into a frustum-shaped structure according to its shape, and the frustum-shaped structure comprises a narrow mouth and a wide mouth, and the narrow mouth is connected to the water storage tank (4).

3. The ink recovery device for a printing press according to claim 1, characterized in that: The isosceles trapezoidal block (2) is tangent to the composite rod (6).

4. The ink recovery device for a printing press according to claim 1, characterized in that: The composite rod (6) comprises a felt cloth enclosure (62) wrapped around the outside of the grid frame (61) and a copper tube (632) with a spiral flow channel (631) formed on the outer wall, wherein a predetermined distance is maintained between the copper tube (632) and the grid frame (61) to form a flow cavity (100).

5. The ink recovery device for a printing press according to claim 4, characterized in that: The composite rod (6) comprises a core rod (64), and side fixing members (641) are respectively fixedly mounted on both ends of the core rod (64) to the ends of the felt cloth surround (62), the grid frame (61) and the copper tube (632).

6. The ink recovery device for a printing press according to claim 5, characterized in that: It also includes a chamber box, which is installed in a mounting groove provided on the scraper member (1), wherein a worm (70) meshing with a worm wheel (71) is arranged in the chamber box, and the worm wheel (71) is fixedly connected to the side fixing member (641); A liquid transfer box (8) is provided in the cabin box, and a pulsator (81) fixedly connected to the worm (70) is provided in the liquid transfer box (8), and one end of the input end flow cavity (100) of the liquid transfer box (8) is connected.

7. The ink recovery device for a printing press according to claim 1, characterized in that: The isosceles trapezoidal block (2) is a steel plate part.

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