Gravure printing machine for packaging bag processing

Abstract

The utility model relates to the technical field of packaging bag processing, and discloses a photogravure press for packaging bag processing, which comprises a photogravure press body, an ink fountain is fixedly mounted at the bottom of an inner cavity of the photogravure press body, a gravure roller is arranged in the photogravure press body, and the bottom of the gravure roller is positioned above an inner cavity of the ink fountain. An ink precipitation prevention mechanism is arranged on the left side of the ink fountain, an ink scraping mechanism is arranged on the left side of the gravure roller, and the ink precipitation prevention mechanism comprises a liquid pump. Through the cooperation of the flow guide channel, the connector, the guide pipe, the electromagnetic valve, the infusion pump and the ink discharging pipe, ink at the bottom of the inner cavity of the ink fountain can be conveniently and circularly pumped out and discharged into the inner cavity of the ink fountain again, so that the ink in the inner cavity of the ink fountain circularly flows, good quality of ink printing is kept, and the printing quality of packaging bags is improved. And the precipitation phenomenon of the ink at the bottom of the inner cavity of the ink fountain due to long-time standing or poor flowing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag processing, and more specifically to a gravure printing machine for packaging bag processing. Background Art

[0002] Packaging bags are bags used to pack various items, making it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production. In the production process of packaging bags, in order to improve recognition and aesthetics, packaging bags are usually printed to varying degrees. When printing packaging bags, a gravure printing machine is required.

[0003] At present, when a gravure printing machine prints packaging bags, the ink inside the ink fountain is usually printed on the packaging bags by rolling the gravure roller. However, when the gravure printing machine works for a long time, the ink at the bottom of the ink fountain cavity will precipitate due to long-term stillness or poor flow, resulting in reduced ink printing quality, thereby reducing the quality of packaging bag printing, which needs to be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a gravure printing machine for packaging bag processing to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a gravure printing machine for packaging bag processing, comprising a gravure printing machine body, an ink fountain is fixedly installed at the bottom of the inner cavity of the gravure printing machine body, a gravure printing plate roller is arranged inside the gravure printing machine body, the bottom of the gravure printing plate roller is located above the inner cavity of the ink fountain, an ink precipitation prevention mechanism is arranged on the left side of the ink fountain, and an ink scraping mechanism is arranged on the left side of the gravure printing plate roller;

[0006] The ink precipitation prevention mechanism comprises a liquid pump, which is fixedly installed at the bottom of the inner cavity of the gravure printing machine body, an input end of the liquid pump is fixedly connected to a conduit, an electromagnetic valve is installed on the conduit, a connector is fixedly installed below the left side of the ink fountain, and one end of the conduit is fixedly connected to the left side of the connector;

[0007] The ink scraping mechanism includes a mounting seat, a printing scraper is movably inserted inside the mounting seat, the right side of the printing scraper is overlapped on the left side of the gravure printing plate roller, a protective cover is fixedly connected to the top of the mounting seat, a lifting plate is provided at the lower part of the protective cover, a plurality of positioning rods are fixedly connected to the bottom of the lifting plate, a plurality of through openings are provided at the top of the mounting seat, a plurality of positioning grooves are provided at the bottom of the inner cavity of the mounting seat, a plurality of mounting holes are provided inside the printing scraper, and the bottom end of the positioning rod passes through the through opening and the mounting opening and is inserted into the inside of the positioning groove.

[0008] Furthermore, a guide channel is provided at the bottom of the ink fountain, one end of the guide channel is communicated with the bottom of the inner cavity of the ink fountain, and the other end of the guide channel is located on the right side of the connector.

[0009] Furthermore, the output end of the liquid suction pump is fixedly connected to an ink discharge tube, and one end of the ink discharge tube extends to the upper left side of the ink fountain inner cavity.

[0010] Furthermore, a screw is provided inside the protective cover, the bottom end of the screw is rotatably connected to the middle part of the top of the mounting seat, the top end of the screw extends to the top of the protective cover and is fixedly connected to a knob, and the middle part of the lifting plate is threadedly sleeved on the outer wall of the screw.

[0011] Furthermore, a support frame is fixedly connected to the left side of the top of the ink fountain, an electric telescopic rod is fixedly installed above the left side of the support frame, and the telescopic end of the electric telescopic rod extends to the right side of the support frame and is fixedly connected to the left side of the mounting seat.

[0012] Furthermore, a driving motor is fixedly installed on the front side of the gravure printing machine body, the output end of the driving motor extends to the interior of the gravure printing machine body and is fixedly connected to one end of the gravure plate roller, the other end of the gravure plate roller is rotatably installed inside the gravure printing machine body, power transmission roller groups are installed on both sides of the gravure printing machine body, a packaging bag body is provided inside the gravure printing machine body, and the packaging bag body is located on the gravure plate roller and the power transmission roller group.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model adopts the cooperation of the guide channel, the connector, the conduit, the solenoid valve, the liquid pump and the ink discharge pipe to facilitate the circulation of the ink at the bottom of the ink fountain cavity and to discharge it into the ink fountain cavity again, so that the ink in the ink fountain cavity circulates, maintains the good quality of the ink printing, improves the quality of the packaging bag printing, and avoids the precipitation of the ink at the bottom of the ink fountain cavity due to long-term immobility or poor flow.

[0015] 2. The utility model facilitates scraping off excess ink on the gravure printing plate roller through the setting of the printing scraper, and facilitates the gravure printing plate roller to print on the packaging bag. Through the setting of the electric telescopic rod, it is convenient to adjust the position of the mounting seat and the printing scraper, and through the cooperation of the protective cover, the knob, the screw rod and the lifting plate, it is convenient to adjust the height position of the positioning rod, and the bottom end of the positioning rod can be moved out of the mounting hole on the printing scraper, so that the printing scraper can be taken out from the mounting seat, thereby facilitating the replacement of the printing scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the side structure of the mounting seat, printing scraper and protective cover of the utility model.

[0019] The accompanying drawings are marked as follows: 1. gravure printing machine body; 2. gravure plate roller; 3. ink fountain; 4. packaging bag body; 5. power transmission roller group; 6. ink anti-sedimentation mechanism; 7. ink scraping mechanism; 8. driving motor; 61. diversion channel; 62. connector; 63. conduit; 64. liquid pump; 65. ink discharge pipe; 71. support frame; 72. electric telescopic rod; 73. mounting seat; 74. printing scraper; 75. protective cover; 76. knob; 77. screw; 78. lifting plate; 79. positioning rod. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The gravure printing machine for packaging bag processing involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Embodiment 1:

[0022] like Figure 1-3As shown, a gravure printing machine for packaging bag processing comprises a gravure printing machine body 1, an ink fountain 3 is fixedly installed at the bottom of the inner cavity of the gravure printing machine body 1, a gravure printing plate roller 2 is arranged inside the gravure printing machine body 1, the bottom of the gravure printing plate roller 2 is located above the inner cavity of the ink fountain 3, an ink anti-sedimentation mechanism 6 is arranged on the left side of the ink fountain 3, and the ink anti-sedimentation mechanism 6 comprises a liquid pump 64, the liquid pump 64 is fixedly installed at the bottom of the inner cavity of the gravure printing machine body 1, a conduit 63 is fixedly connected to the input end of the liquid pump 64, a solenoid valve is installed on the conduit 63, a connector 62 is fixedly installed below the left side of the ink fountain 3, one end of the conduit 63 is fixedly connected to the left side of the connector 62, a guide channel 61 is opened at the bottom of the ink fountain 3, and a guide channel 61 is arranged at the bottom of the ink fountain 3. One end of the flow channel 61 is connected to the bottom of the inner cavity of the ink fountain 3, and the other end of the guide channel 61 is located on the right side of the connector 62. The output end of the liquid suction pump 64 is fixedly connected to the ink discharge tube 65, and one end of the ink discharge tube 65 extends to the upper left side of the inner cavity of the ink fountain 3. A driving motor 8 is fixedly installed on the front of the gravure printing machine body 1, and the output end of the driving motor 8 extends to the interior of the gravure printing machine body 1 and is fixedly connected to one end of the gravure plate roller 2. The other end of the gravure plate roller 2 is rotatably installed in the interior of the gravure printing machine body 1. Power transmission roller groups 5 are installed on both sides of the interior of the gravure printing machine body 1. A packaging bag body 4 is provided in the interior of the gravure printing machine body 1, and the packaging bag body 4 is located on the gravure plate roller 2 and the power transmission roller group 5.

[0023] In this embodiment, the driving motor 8 is provided to facilitate driving the gravure roller 2 to rotate, and the rotation of the gravure roller 2 is used to dip the ink inside the ink fountain 3 to print the packaging bag body 4. At the same time, through the cooperation of the guide channel 61, the connecting head 62, the conduit 63 and the liquid pump 64, it is convenient to extract the ink inside the ink fountain 3 and discharge it into the interior of the ink fountain 3 through the ink discharge pipe 65, so that the ink in the inner cavity of the ink fountain 3 circulates, thereby avoiding the precipitation of the ink at the bottom of the inner cavity of the ink fountain 3.

[0024] Embodiment 2:

[0025] like Figure 1-3As shown, a scraping mechanism 7 is provided on the left side of the gravure printing plate roller 2, and the scraping mechanism 7 includes a mounting seat 73, and a printing scraper 74 is movably inserted inside the mounting seat 73. The right side of the printing scraper 74 overlaps the left side of the gravure printing plate roller 2, and a protective cover 75 is fixedly connected to the top of the mounting seat 73. A lifting plate 78 is provided below the inside of the protective cover 75, and a plurality of positioning rods 79 are fixedly connected to the bottom of the lifting plate 78. A plurality of through openings are provided on the top of the mounting seat 73, and a plurality of positioning grooves are provided at the bottom of the inner cavity of the mounting seat 73. A plurality of mounting holes are provided inside the printing scraper 74, and the positioning rods 79 are fixedly connected to the bottom of the lifting plate 78. The bottom end of 79 passes through the through opening and the mounting opening and is inserted into the inside of the positioning groove. A screw rod 77 is provided inside the protective cover 75. The bottom end of the screw rod 77 is rotatably connected to the middle part of the top of the mounting seat 73. The top end of the screw rod 77 extends to the top of the protective cover 75 and is fixedly connected to a knob 76. The middle part of the lifting plate 78 is threadedly sleeved on the outer wall of the screw rod 77. The left side of the top of the ink fountain 3 is fixedly connected to a support frame 71. An electric telescopic rod 72 is fixedly installed on the upper left side of the support frame 71. The telescopic end of the electric telescopic rod 72 extends to the right side of the support frame 71 and is fixedly connected to the left side of the mounting seat 73.

[0026] In this embodiment, the electric telescopic rod 72 is provided to facilitate the movement of the mounting seat 73 and the printing scraper 74, so that the right side of the printing scraper 74 is moved to the left side of the gravure roller 2. When the gravure roller 2 rotates to print the packaging bag, the printing scraper 74 is used to scrape off the excess ink on the gravure roller 2. When the printing scraper 74 needs to be replaced after a long period of use, the telescopic end of the electric telescopic rod 72 is retracted, and the mounting seat 73 and the printing scraper 74 are driven to move, so that the printing scraper 74 is separated from the left side of the gravure roller 2. At this time, the staff rotates the screw 77 through the knob 76, and the screw 77 is The lifting plate 78 and the positioning rod 79 are driven to move upward, so that the bottom end of the positioning rod 79 is moved out of the positioning groove and the mounting hole in turn, and the bottom end of the positioning rod 79 is moved into the through opening, and then the left side of the printing scraper 74 is taken out from the inside of the mounting seat 73, and then the left side of the new printing scraper 74 is inserted into the inside of the mounting seat 73, and then the knob 76 and the screw 77 are rotated in the opposite direction, and the positioning rod 79 is driven to move in the same way, so that the bottom end of the positioning rod 79 passes through the mounting hole on the printing scraper 74 and is inserted into the positioning groove, thereby fixing the printing scraper 74 inside the mounting seat 73, making it easy to replace the printing scraper 74.

[0027] In summary, if Figure 1-3As shown, the gravure printing machine for packaging bag processing, when in use, the power conveying roller group 5 conveys the packaging bag body 4, and at the same time drives the gravure plate roller 2 to rotate through the driving motor 8, and the gravure plate roller 2 dips the ink inside the ink fountain 3 while rotating, and at the same time uses the printing scraper 74 to scrape off the excess ink on the gravure plate roller 2, and prints the packaging bag through the rotation of the gravure plate roller 2, at this time, the solenoid valve is opened, and the ink inside the ink fountain 3 is extracted through the guide channel 61, the connector 62, the conduit 63 and the liquid pump 64, and at the same time, the ink is discharged into the interior of the ink fountain 3 through the ink discharge pipe 65, so that the ink in the inner cavity of the ink fountain 3 circulates, thereby avoiding the precipitation of the ink at the bottom of the inner cavity of the ink fountain 3.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gravure printing machine for packaging bag processing, comprising a gravure printing machine body (1), characterized in that: An ink fountain (3) is fixedly mounted at the bottom of the inner cavity of the gravure printing machine body (1); a gravure printing plate roller (2) is arranged inside the gravure printing machine body (1); the bottom of the gravure printing plate roller (2) is located above the inner cavity of the ink fountain (3); an ink anti-sedimentation mechanism (6) is arranged on the left side of the ink fountain (3); and an ink scraping mechanism (7) is arranged on the left side of the gravure printing plate roller (2); The ink anti-precipitation mechanism (6) comprises a liquid pump (64), the liquid pump (64) is fixedly mounted at the bottom of the inner cavity of the gravure printing machine body (1), the input end of the liquid pump (64) is fixedly connected to a conduit (63), an electromagnetic valve is mounted on the conduit (63), a connector (62) is fixedly mounted below the left side of the ink fountain (3), and one end of the conduit (63) is fixedly connected to the left side of the connector (62); The ink scraping mechanism (7) comprises a mounting seat (73), a printing scraper (74) is movably inserted inside the mounting seat (73), the right side of the printing scraper (74) overlaps the left side of the gravure printing plate roller (2), a protective cover (75) is fixedly connected to the top of the mounting seat (73), a lifting plate (78) is provided below the inside of the protective cover (75), a plurality of positioning rods (79) are fixedly connected to the bottom of the lifting plate (78), a plurality of through openings are provided at the top of the mounting seat (73), a plurality of positioning grooves are provided at the bottom of the inner cavity of the mounting seat (73), a plurality of mounting holes are provided inside the printing scraper (74), and the bottom end of the positioning rod (79) passes through the through opening and the mounting opening and is inserted into the inside of the positioning groove.

2. The gravure printing machine for packaging bag processing according to claim 1, characterized in that: A guide channel (61) is provided at the bottom of the ink fountain (3), one end of the guide channel (61) is communicated with the bottom of the inner cavity of the ink fountain (3), and the other end of the guide channel (61) is located on the right side of the connector (62).

3. The gravure printing machine for packaging bag processing according to claim 1, characterized in that: The output end of the liquid pump (64) is fixedly connected to an ink discharge tube (65), and one end of the ink discharge tube (65) extends to the upper left side of the inner cavity of the ink fountain (3).

4. The gravure printing machine for packaging bag processing according to claim 1, characterized in that: A screw rod (77) is provided inside the protective cover (75), the bottom end of the screw rod (77) is rotatably connected to the middle part of the top of the mounting seat (73), the top end of the screw rod (77) extends to the top of the protective cover (75) and is fixedly connected to a knob (76), and the middle part of the lifting plate (78) is threadedly sleeved on the outer wall of the screw rod (77).

5. The gravure printing machine for packaging bag processing according to claim 1, characterized in that: A support frame (71) is fixedly connected to the left side of the top of the ink fountain (3); an electric telescopic rod (72) is fixedly installed above the left side of the support frame (71); the telescopic end of the electric telescopic rod (72) extends to the right side of the support frame (71) and is fixedly connected to the left side of the mounting seat (73).

6. The gravure printing machine for packaging bag processing according to claim 1, characterized in that: A drive motor (8) is fixedly mounted on the front of the gravure printing machine body (1); an output end of the drive motor (8) extends into the interior of the gravure printing machine body (1) and is fixedly connected to one end of a gravure plate roller (2); the other end of the gravure plate roller (2) is rotatably mounted inside the gravure printing machine body (1); power transmission roller groups (5) are mounted on both sides of the interior of the gravure printing machine body (1); a packaging bag body (4) is provided inside the gravure printing machine body (1); and the packaging bag body (4) is located on the gravure plate roller (2) and the power transmission roller group (5).

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