Printing device for plastic bag production

Abstract

The utility model discloses a printing device for plastic bag production, which belongs to the field of printing and comprises a rack, a printing plate roller and an impressing roller which are arranged in parallel are arranged on the rack, an ink box is arranged at the position, below the printing plate roller, of the rack, an ink scraping assembly is arranged on the rack, and the printing plate roller and the impressing roller are arranged on the rack. The ink box is provided with a stirring rod capable of moving in the ink box in a reciprocating mode through a driving assembly, a temperature control assembly is arranged outside the ink box, the stirring rod and the temperature control assembly are matched to achieve sedimentation prevention and blockage prevention of ink in the ink box, and the driving assembly comprises a mounting frame fixed to the ink box. And a screw rod is arranged on the mounting frame through a motor. According to the printing device for plastic bag production, the driving assembly drives the stirring rod to move so that the flowing speed of ink in the ink box can be increased, the temperature of the ink in the ink box can be controlled in cooperation with the temperature control assembly, and therefore the precipitation phenomenon of the ink in the ink box is avoided, and meanwhile the ink blocking problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a printing device used for producing plastic bags. Background Art

[0002] Plastic bags, also known as plastic bags, are a widely used packaging material. Plastic bags are mainly made of plastic film and can be divided into many types according to the different materials, such as PE plastic bags, PO plastic bags, PP plastic bags, OPP plastic bags, CPE plastic bags, etc. In the production process of plastic bags, printing can add various patterns, texts or logos on the plastic bags, which greatly enhances the decorativeness and aesthetics of the plastic bags.

[0003] When the plastic bag is printed by a printing device, the printing ink of the printing device will add pigments or dyes according to printing needs. The ink is stored in the ink cartridge of the printing device. Although the plate roller will drive the ink in the ink cartridge to flow during the printing process, the ink at the bottom of the ink cartridge has poor fluidity. The pigment or dye particles in the ink are easily precipitated at the bottom of the ink cartridge due to gravity, resulting in uneven ink and affecting printing quality. Utility Model Content

[0004] The utility model aims to solve the problem that pigment or dye particles in ink are easily precipitated at the bottom of the ink cartridge due to gravity when the existing printing device is used, thereby causing uneven ink and affecting printing quality. A printing device for plastic bag production is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a printing device for plastic bag production, comprising a frame, on which a printing plate roller and an embossing roller arranged in parallel are arranged, an ink cartridge is arranged at a position below the printing plate roller on the frame, an ink scraping assembly is arranged on the frame, a stirring rod capable of reciprocating inside the ink cartridge is arranged on the ink cartridge through a driving assembly, and a temperature control assembly is arranged on the outside of the ink cartridge, and the stirring rod and the temperature control assembly cooperate to prevent the ink in the ink cartridge from sedimentation and clogging.

[0006] As a further description of the above technical solution: the driving assembly includes a mounting bracket fixed on the ink cartridge, the mounting bracket is provided with a screw rod through a motor, the screw rod is provided with a sliding seat that cooperates with its thread, and the top of the sliding seat is provided with a first connecting plate connected to one end of the stirring rod.

[0007] As a further description of the above technical solution: the ink cartridge is provided with a guide assembly that cooperates with the driving assembly;

[0008] The guide assembly comprises a guide rod arranged on the ink cartridge via a mounting plate, and a second connecting plate connected to the other end of the stirring rod is arranged on the guide rod via a guide sleeve.

[0009] As a further description of the above technical solution: both ends of the stirring rod are fixedly connected with threaded ends, and the threaded ends are provided with locking nuts;

[0010] The first connecting plate is provided with a first connecting hole matched with a threaded end at one end of the stirring rod, and the second connecting plate is provided with a second connecting hole matched with a threaded end at the other end of the stirring rod.

[0011] As a further description of the above technical solution: the temperature control component includes a jacket mounted on the outside of the ink cartridge, a cavity is formed between the jacket and the ink cartridge, and an inlet pipe and an outlet pipe connected to the cavity are arranged on the jacket.

[0012] As a further description of the above technical solution: the ink scraping assembly includes a mounting seat fixed on a frame, and a scraper arranged parallel to the printing plate roller is provided on the mounting seat through a knife rod.

[0013] As a further description of the above technical solution: the mounting seat is provided with a plurality of adjusting screw holes arranged at equal intervals, one of the adjusting screw holes is provided with an adjusting bolt, and the knife rod is provided with a positioning screw hole matched with the adjusting bolt.

[0014] As a further description of the above technical solution: a guide rail is arranged on the inner wall of the mounting seat, and a guide groove matching the guide rail is opened on the knife rod.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. Driving the stirring rod to move by the driving component can speed up the flow of ink inside the ink cartridge, prevent the pigment or dye particles in the ink from settling at the bottom of the ink cartridge, thereby maintaining the uniformity of the ink and effectively reducing the printing quality problems caused by ink precipitation;

[0017] 2. The temperature control component can heat the ink in the ink cartridge in a low temperature environment to prevent the ink in the ink cartridge from becoming viscous and difficult to flow due to the low temperature, and further prevent the ink from settling in the ink cartridge, thereby improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure diagram provided according to the embodiment of the utility model is shown;

[0019] Figure 2 The local structure schematic diagram provided according to the embodiment of the utility model is shown Figure 1 ;

[0020] Figure 3 The local structure schematic diagram provided according to the embodiment of the utility model is shown Figure 2 ;

[0021] Figure 4 A schematic diagram of the structure of a drive assembly provided according to an embodiment of the utility model is shown;

[0022] Figure 5 A schematic structural diagram of a guide assembly provided according to an embodiment of the utility model is shown;

[0023] Figure 6 A schematic diagram of the structure of a stirring rod provided according to an embodiment of the utility model is shown;

[0024] Figure 7 A schematic diagram of the structure of a temperature control assembly provided according to an embodiment of the utility model is shown;

[0025] Figure 8 The schematic diagram of the structure of the ink scraping assembly provided according to the embodiment of the utility model is shown.

[0026] Legend:

[0027] 1. Frame; 2. Plate roller; 3. Impression roller; 4. Ink cartridge; 5. Ink scraping assembly; 51. Mounting seat; 52. Scraper; 53. Knife rod; 54. Adjusting screw hole; 55. Adjusting bolt; 56. Positioning screw hole; 57. Guide rail; 58. Guide groove; 6. Stirring rod; 61. Threaded end; 62. Locking nut; 7. Driving assembly; 71. Mounting frame; 72. Motor; 73. Screw rod; 74. Slide seat; 75. First connecting plate; 76. First connecting hole; 8. Guide assembly; 81. Mounting plate; 82. Guide rod; 83. Guide sleeve; 84. Second connecting plate; 85. Second connecting hole; 9. Temperature control assembly; 91. Jacket; 92. Inlet pipe; 93. Outlet pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 8The present embodiment provides a printing device for producing plastic bags, comprising a frame 1, on which a plate roller 2 and an impression roller 3 arranged in parallel are arranged, an ink cartridge 4 is arranged below the plate roller 2 on the frame 1, an ink scraping assembly 5 is arranged on the frame 1, and a stirring rod 6 capable of reciprocating inside the ink cartridge 4 is arranged on the ink cartridge 4 through a driving assembly 7, and a temperature control assembly 9 is arranged outside the ink cartridge 4, and the stirring rod 6 cooperates with the temperature control assembly 9 to prevent the ink in the ink cartridge 4 from sedimentation and clogging.

[0030] In the utility model, the printing device is fixedly installed by a frame 1, and the plastic bag to be printed passes between the plate roller 2 and the impression roller 3 of the frame 1. The plate roller 2 and the impression roller 3 rotate under the action of an external drive, and the bottom of the plate roller 2 is located in the ink cartridge 4, and the ink cartridge 4 is filled with ink for printing. When the plate roller 2 rotates, the ink in the ink cartridge 4 adheres to the plate roller 2, and then the ink scraping component 5 scrapes the ink on the plate roller 2 evenly, and then the ink on the plate roller 2 is printed on the plastic bag under the action of the plate roller 2 and the impression roller 3. The driving component 7 on the ink cartridge 4 can drive the stirring rod 6 to move in the ink cartridge 4, and the movement of the stirring rod 6 can accelerate the flow speed of the ink inside the ink cartridge 4, and prevent the pigment or dye particles in the ink from settling at the bottom of the ink cartridge 4, and the temperature control component 9 on the ink cartridge 4 can heat the ink in the ink cartridge 4 under a low temperature environment, so as to prevent the ink in the ink cartridge 4 from becoming viscous and difficult to flow due to the low temperature, and further prevent the ink from settling in the ink cartridge 4;

[0031] It should be noted that the stirring rod 6 is U-shaped, and the bottom of the stirring rod 6 is lower than the bottom of the printing plate roller 2 in the ink cartridge 4 , thereby ensuring that the stirring rod 6 does not interfere with the printing plate roller 2 .

[0032] Specifically, Figure 1-Figure 4 As shown, the driving assembly 7 includes a mounting frame 71 fixed on the ink cartridge 4, a screw 73 is provided on the mounting frame 71 through a motor 72, a slide seat 74 threadedly matched with the screw 73 is provided on the screw 73, and a first connecting plate 75 connected to one end of the stirring rod 6 is provided on the top of the slide seat 74.

[0033] When the ink inside the ink cartridge 4 needs to be stirred by the stirring rod 6, the motor 72 on the mounting bracket 71 is started, and the motor 72 drives the screw 73 to rotate so that the slide 74 matched with the screw 73 moves linearly. One end of the stirring rod 6 is connected to the slide 74 through the first connecting plate 75 on the slide 74, so that the stirring rod 6 can be driven to move inside the ink cartridge 4 when the slide 74 moves linearly, thereby accelerating the flow speed of the ink in the ink cartridge 4 and avoiding precipitation.

[0034] Specifically, Figure 2 , Figure 3 and Figure 5As shown, the ink cartridge 4 is provided with a guide assembly 8 that cooperates with the driving assembly 7. The guide assembly 8 includes a guide rod 82 that is provided on the ink cartridge 4 through a mounting plate 81. The guide rod 82 is provided with a second connecting plate 84 that is connected to the other end of the stirring rod 6 through a guide sleeve 83.

[0035] Among them, one end of the stirring rod 6 is connected to the slide seat 74 of the driving assembly 7, and the other end of the stirring rod 6 is connected to the second connecting plate 84 sliding on the guide rod 82. The guide rod 82 and the guide sleeve 83 are used to make the other end of the stirring rod 6 have supporting force without affecting the movement of the stirring rod 6. While ensuring that the driving assembly 7 can drive the stirring rod 6 to move, the stable movement of the stirring rod 6 can be ensured, thereby improving its stability.

[0036] Specifically, Figure 3-Figure 6 As shown, both ends of the stirring rod 6 are fixedly connected with a threaded end 61, and a locking nut 62 is provided on the threaded end 61. The first connecting plate 75 is provided with a first connecting hole 76 that matches the threaded end 61 at one end of the stirring rod 6, and the second connecting plate 84 is provided with a second connecting hole 85 that matches the threaded end 61 at the other end of the stirring rod 6.

[0037] Among them, the locking nut 62 is convenient for installation and disassembly through the threaded end 61, so that when the stirring rod 6 needs to be cleaned, the locking nut 62 on the first connecting plate 75 and the second connecting plate 84 is first unscrewed, and then the threaded ends 61 at both ends of the stirring rod 6 are pulled out from the first connecting hole 76 of the first connecting plate 75 and the second connecting hole 85 of the second connecting plate 84. It is convenient and quick, and it is easy to replace and clean the stirring rod 6.

[0038] Specifically, Figure 3 and Figure 7 As shown, the temperature control assembly 9 includes a jacket 91 sleeved on the outside of the ink cartridge 4, a cavity is formed between the jacket 91 and the ink cartridge 4, and an inlet pipe 92 and an outlet pipe 93 communicating with the cavity are arranged on the jacket 91.

[0039] Among them, the cavity between the jacket 91 and the ink cartridge 4 is used to fill with cold and hot media. When the ambient temperature is low and the fluidity of the ink in the ink cartridge 4 becomes poor, hot water is injected into the cavity through the inlet pipe 92 to heat the ink cartridge 4. When the ambient temperature is high and the viscosity of the ink becomes poor, cooling water is injected into the cavity through the inlet pipe 92. The injected water medium is discharged through the outlet pipe 93 during its service life, thereby realizing the control of the temperature of the ink cartridge 4, preventing the ink in the ink cartridge 4 from becoming viscous and difficult to flow due to the low temperature, and further preventing the ink from settling in the ink cartridge 4, thereby improving the printing quality.

[0040] Specifically, Figure 1 and Figure 8As shown, the ink scraping assembly 5 includes a mounting seat 51 fixed on the frame 1 , and a scraper 52 arranged parallel to the plate roller 2 is provided on the mounting seat 51 through a knife rod 53 .

[0041] Among them, the scraper 52 is installed on the frame 1 through the mounting seat 51. The scraper 52 is close to the plate roller 2. When the plate roller 2 rotates, it will bring up the ink. When the plate roller 2 with ink rotates, the scraper 52 will scrape off the excess ink on the plate roller 2, thereby ensuring that the ink on the plate roller 2 is uniform and avoiding uneven printing during printing.

[0042] It should be noted that a plurality of equally spaced adjusting screw holes 54 are provided on the mounting seat 51, an adjusting bolt 55 is provided on one of the adjusting screw holes 54, a positioning screw hole 56 matching with the adjusting bolt 55 is provided on the knife rod 53, a guide rail 57 is provided on the inner wall of the mounting seat 51, and a guide groove 58 matching with the guide rail 57 is provided on the knife rod 53.

[0043] Among them, the blade rod 53 of the scraper 52 slides on the mounting seat 51 through the guide rail 57 and the guide groove 58. When the adjusting bolt 55 is unscrewed, the scraper 52 can be moved, thereby adjusting the distance between the scraper 52 and the printing plate roller 2. After adjustment, the adjusting bolt 55 is inserted into the corresponding adjusting screw hole 54 and screwed on the positioning screw hole 56 of the blade rod 53, thereby realizing the adjustment of the position of the scraper 52.

[0044] 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 for plastic bag production, characterized in that: The invention comprises a frame (1), wherein a printing plate roller (2) and an impression roller (3) arranged in parallel are arranged on the frame (1), an ink cartridge (4) is arranged at a position below the printing plate roller (2) on the frame (1), an ink scraping assembly (5) is arranged on the frame (1), a stirring rod (6) capable of reciprocating inside the ink cartridge (4) is arranged on the ink cartridge (4) through a driving assembly (7), and a temperature control assembly (9) is arranged outside the ink cartridge (4), wherein the stirring rod (6) cooperates with the temperature control assembly (9) to prevent the ink in the ink cartridge (4) from sedimentation and clogging.

2. A printing device for plastic bag production according to claim 1, characterized in that: The driving assembly (7) comprises a mounting frame (71) fixed on the ink cartridge (4); a screw rod (73) is arranged on the mounting frame (71) through a motor (72); a slide seat (74) threadedly matched with the screw rod (73) is arranged on the screw rod (73); and a first connecting plate (75) connected to one end of the stirring rod (6) is arranged on the top of the slide seat (74).

3. A printing device for plastic bag production according to claim 2, characterized in that: The ink cartridge (4) is provided with a guide assembly (8) that cooperates with the drive assembly (7); The guide assembly (8) comprises a guide rod (82) arranged on the ink cartridge (4) via a mounting plate (81); a second connecting plate (84) connected to the other end of the stirring rod (6) is arranged on the guide rod (82) via a guide sleeve (83).

4. A printing device for plastic bag production according to claim 3, characterized in that: Both ends of the stirring rod (6) are fixedly connected with threaded ends (61), and locking nuts (62) are arranged on the threaded ends (61); The first connecting plate (75) is provided with a first connecting hole (76) that matches with the threaded end (61) at one end of the stirring rod (6), and the second connecting plate (84) is provided with a second connecting hole (85) that matches with the threaded end (61) at the other end of the stirring rod (6).

5. A printing device for plastic bag production according to claim 2, 3 or 4, characterized in that: The temperature control component (9) comprises a jacket (91) sleeved on the outside of the ink cartridge (4), a cavity is formed between the jacket (91) and the ink cartridge (4), and an inlet pipe (92) and an outlet pipe (93) connected to the cavity are arranged on the jacket (91).

6. A printing device for plastic bag production according to claim 1, characterized in that: The ink scraping assembly (5) comprises a mounting seat (51) fixed on a frame (1), and a scraper (52) arranged parallel to the printing plate roller (2) is arranged on the mounting seat (51) via a knife rod (53).

7. A printing device for plastic bag production according to claim 6, characterized in that: The mounting seat (51) is provided with a plurality of adjusting screw holes (54) arranged at equal intervals, one of the adjusting screw holes (54) is provided with an adjusting bolt (55), and the knife rod (53) is provided with a positioning screw hole (56) matched with the adjusting bolt (55).

8. A printing device for plastic bag production according to claim 7, characterized in that: A guide rail (57) is arranged on the inner wall of the mounting seat (51), and a guide groove (58) matching with the guide rail (57) is opened on the knife rod (53).

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