Printing device for colored plastic bags

Abstract

The utility model relates to a printing device for colored plastic bags, in particular to the technical field of printing devices. Comprising a first pressing roller, a second pressing roller, a third pressing roller, a fourth pressing roller, an adjusting assembly, a fifth pressing roller, a printing machine, a drying box and a drying mechanism. The problem that according to an existing plastic bag printing device, the tensioning force is inconvenient to adjust is solved. And the problem that the existing plastic bag roll cannot be quickly shaped and dried after being printed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing devices, and particularly relates to a printing device for colored plastic bags. Background Art

[0002] At present, plastic bags are widely used in industries such as food packaging, commodity retail, and logistics. Before use, some colored plastic bags need to be printed with corresponding texts on the surface according to the requirements of merchants.

[0003] However, the current printing device is not convenient for adjusting the tension of the plastic bag roll during the feeding process, so that the plastic roll is prone to slipping during the wire feeding process, making the subsequent plastic bag printing process unstable; in addition, after printing, the plastic bags are usually directly discharged, and during the transportation of some plastic bags after printing, the printed traces are blurred and erased because they are not dried. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The utility model provides a printing device for colored plastic bags, which overcomes the problem that the current plastic bag printing device is not convenient for adjusting the tension; and the problem that the current plastic bag roll cannot be quickly shaped and dried after printing.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides a printing device for colored plastic bags, including a first pressing roller, a second pressing roller, a third pressing roller, a fourth pressing roller, an adjusting component, a fifth pressing roller, a printing machine, a drying box, and a drying mechanism;

[0008] A first support frame is connected to the bottom plate; an installation wheel is provided on the first support frame; the installation wheel is driven by a driving motor; a second support frame is provided behind the first support frame; the first pressing roller is provided at the front end of the second support frame; an installation block is provided at the rear end of the second support frame; the second pressing roller and the third pressing roller are sequentially installed on the installation block from top to bottom; the fourth pressing roller is provided behind the installation block; an adjusting support frame is provided on the second support frame behind the installation block; the adjusting component connected to the fourth pressing roller is provided on the adjusting support frame; a third support frame is connected to the rear end of the adjusting support frame; the fifth pressing roller and the sixth pressing roller are provided on the third support frame; the printing machine is provided between the fifth pressing roller and the sixth pressing roller; the printing machine is fixed on the third support frame through a fixing frame; the drying box is provided behind the printing machine; the drying mechanism is provided inside the drying box.

[0009] Preferably, the third pressure roller is rotatably installed inside the mounting block; a fixing plate is provided inside the mounting block; a driving cylinder is provided on the top of the mounting block; the connecting rod of the driving cylinder penetrates through the top of the mounting block and is connected to the fixing plate; a second pressure roller is rotatably installed on the fixing plate.

[0010] Preferably, the adjusting assembly includes an electric push rod, a first hinge seat, a second hinge seat, and a rocker arm;

[0011] The adjusting support frame is "L"-shaped and the electric push rod is provided at the bottom of the adjusting support frame; the bottom of the electric push rod is connected to the bottom of the adjusting support frame through the first hinge seat; the output end of the electric push rod is connected to the rocker arm through the second hinge seat; one end of the rocker arm is rotatably installed at the upper end of the adjusting support frame; the other end of the rocker arm is rotatably installed with the fourth pressure roller.

[0012] Preferably, the drying mechanism includes a rotating motor, a screw rod, a moving block, a rotating fan, a motor, and an infrared heating lamp tube;

[0013] The rotating motor is provided on the left side of the top of the drying box; the output shaft of the rotating motor is connected to the screw rod; the moving block is threadedly connected to the screw rod; the rotating fan is provided at the bottom of the moving block; the motor for driving the rotating fan to rotate is provided on the top of the moving block; the infrared heating lamp tube is provided inside the drying box and below the rotating fan.

[0014] Preferably, a base support is provided at the bottom of the drying box.

[0015] (3) Beneficial effects

[0016] The present utility model provides a printing device for colored plastic bags, which overcomes the problems that the current plastic bag printing device is not convenient for adjusting the tension; and the current plastic bag roll cannot be quickly shaped and dried after printing.

[0017] By setting the adjusting assembly in the present utility model, the tension between each pressure roller can be adjusted.

[0018] By setting the drying mechanism in the present utility model, the plastic bag roll can be quickly dried after printing, further ensuring the printing quality. Description of the drawings

[0019] Figure 1 A printing device for colored plastic bags proposed by the present utility model;

[0020] Figure 2 A structural schematic diagram of the adjusting assembly in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the drying mechanism in the present utility model;

[0022] Figure 4 In the present utility model Figure 1 side view;

[0023] Figure 5 It is a schematic structural diagram inside the mounting block in the present utility model;

[0024] Reference numerals: 1 - first pressing roller, 2 - first support frame, 3 - mounting wheel, 4 - driving motor, 5 - second support frame, 6 - mounting block, 7 - second pressing roller, 8 - third pressing roller, 9 - fourth pressing roller, 10 - adjusting support frame, 11 - adjusting assembly, 111 - electric push rod, 112 - first hinge seat, 113 - second hinge seat, 114 - rocker arm, 12 - third support frame, 13 - fifth pressing roller, 14 - printing machine, 15 - fixing frame, 16 - drying box, 17 - drying mechanism, 171 - rotating motor, 172 - screw rod, 173 - moving block, 174 - rotating fan, 175 - motor, 176 - infrared heating lamp tube, 18 - fixing plate, 19 - driving cylinder, 20 - bottom plate, 21 - sixth pressing roller. Detailed implementation manners

[0025] The present utility model will be further described in conjunction with the accompanying drawings and embodiments.

[0026] As Figures 1 to 5 shown, a printing device for colored plastic bags of the present utility model includes a first pressing roller 1, a second pressing roller 7, a third pressing roller 8, a fourth pressing roller 9, an adjusting assembly 11, a fifth pressing roller 13, a printing machine 14, a drying box 16, and a drying mechanism 17;

[0027] A first support frame 2 is connected to the bottom plate 20; an installation wheel 3 is provided on the first support frame 2; the plastic roll is placed on the installation wheel 3 for unwinding. Since the wire unwinding process is not the main innovation point of the present utility model, it will not be described in detail here; the installation wheel 3 is driven by a driving motor 4; a second support frame 5 is provided behind the first support frame 2; a first pressing roller 1 is provided at the front end of the second support frame 5; an installation block 6 is provided at the rear end of the second support frame 5; a second pressing roller 7 and a third pressing roller 8 are sequentially installed on the installation block 6 from top to bottom; a fourth pressing roller 9 is provided behind the installation block 6; an adjusting support frame 10 is provided on the second support frame 5 at the rear side of the installation block 6; an adjusting assembly 11 connected to the fourth pressing roller 9 is provided on the adjusting support frame 10; the rear end of the adjusting support frame 10 is connected to a third support frame 12; a fifth pressing roller 13 and a sixth pressing roller 21 are provided on the third support frame 12; a printing machine 14 is provided between the fifth pressing roller 13 and the sixth pressing roller 21. The printing machine 14 belongs to the prior art and is not the main innovation point of the present utility model; the printing machine 14 is fixed on the third support frame 12 through a fixing frame 15; a drying box 16 is provided behind the printing machine 14; a drying mechanism 17 is provided inside the drying box 16.

[0028] The third pressing roller 8 is rotatably installed inside the installation block 6; a fixing plate 18 is provided inside the installation block 6; a driving cylinder 19 is provided at the top of the installation block 6; the connecting rod of the driving cylinder 19 penetrates through the top of the installation block 6 and is connected to the fixing plate 18; the second pressing roller 7 is rotatably installed on the fixing plate 18.

[0029] The adjusting assembly 11 includes an electric push rod 111, a first hinge seat 112, a second hinge seat 113, and a rocker arm 114.

[0030] The adjusting support frame 10 is in an "L" shape and the electric push rod 111 is provided at the bottom of the adjusting support frame 10; the bottom of the electric push rod 111 is connected to the bottom of the adjusting support frame 10 through the first hinge seat 112; the output end of the electric push rod 111 is connected to the rocker arm 114 through the second hinge seat 113; one end of the rocker arm 114 is rotatably installed at the upper end of the adjusting support frame 10; the other end of the rocker arm 114 is rotatably installed with the fourth pressing roller 9.

[0031] The drying mechanism 17 includes a driving motor, a screw rod 172, a moving block 173, a rotating fan 174, a motor 175, and an infrared heating lamp tube 176.

[0032] On the left side of the top of the drying box 16, there is a rotating motor 171; the output shaft of the rotating motor 171 is connected to a screw rod 172; a moving block 173 is threadedly connected to the screw rod 172; a rotating fan 174 is provided at the bottom of the moving block 173; a motor 175 for driving the rotating fan 174 to rotate is provided at the top of the moving block 173; an infrared heating lamp tube 176 is provided inside the drying box 16 and at the lower end of the rotating fan 174.

[0033] The bottom of the drying box 16 is provided with a base support.

[0034] Working principle: First, place the plastic roll on the mounting wheel 3, and then drive the unwinding by the driving motor 4. The plastic roll passes under the first pressing roller 1, and then after being wound around the second and third pressing rollers 8, it reaches the fourth pressing roller 9 at the rear.

[0035] At this time, by turning on the electric push rod 111, the electric push rod 111 drives the rocker arm 114 to move up or down, so as to adjust the position of the fourth pressing roller 9 and further adjust the tension of the plastic roll, making the subsequent printing work proceed more smoothly; it is also possible to turn on the driving cylinder 19, so that the cylinder drives the fixed plate 18 to move, and the fixed plate 18 drives the second pressing roller 7 mounted on the fixed plate 18 to move, thereby adjusting the tension of the plastic roll passing through the second pressing roller 7 and the third pressing roller 8.

[0036] When the plastic roll passes between the fifth pressing roller 13 and the sixth pressing roller 21, the plastic roll is printed by the printing machine 14; after the printing process ends, the plastic roll passes through the interior of the rear drying box 16; during the drying process, turn on the rotating motor 171, so that the motor drives the screw rod 172 to rotate, thereby causing the moving block 173 that moves threadedly with the screw rod 172 to move. Turn on the motor 175 at the top of the moving block 173, thereby driving the fan blades at the bottom of the moving block 173 to rotate. Turn on the infrared heating lamp tube 176 located below the screw rod 172. By the rotation of the rotating fan 174, the hot air circulation is further driven, and the printed plastic roll is dried more quickly. The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0037] The above-described embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed. However, the present invention is not limited to these embodiments. It should be noted that for those of ordinary skill in the art. Without departing from the gist of the present invention, any improvements made fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A printing device for colored plastic bags, characterized in that, It includes a first pressing roller (1), a second pressing roller (7), a third pressing roller (8), a fourth pressing roller (9), an adjusting assembly (11), a fifth pressing roller (13), a printing machine (14), a drying box (16), and a drying mechanism (17). A first support frame (2) is connected to the bottom plate (20); an installation wheel (3) is provided on the first support frame (2); the installation wheel (3) is driven by a driving motor (4); a second support frame (5) is provided behind the first support frame (2); the first pressing roller (1) is provided at the front end of the second support frame (5); an installation block (6) is provided at the rear end of the second support frame (5); the second pressing roller (7) and the third pressing roller (8) are sequentially installed on the installation block (6) from top to bottom; the fourth pressing roller (9) is provided behind the installation block (6); an adjusting support frame (10) is provided on the second support frame (5) at the rear side of the installation block (6); the adjusting assembly (11) connected to the fourth pressing roller (9) is provided on the adjusting support frame (10); a third support frame (12) is connected to the rear end of the adjusting support frame (10); the fifth pressing roller (13) and a sixth pressing roller (21) are provided on the third support frame (12); the printing machine (14) is provided between the fifth pressing roller (13) and the sixth pressing roller (21); the printing machine (14) is fixed to the third support frame (12) through a fixing frame (15); the drying box (16) is provided behind the printing machine (14); the drying mechanism (17) is provided inside the drying box (16).

2. The printing device for a colored plastic bag according to claim 1, characterized in that, The third pressing roller (8) is rotatably installed inside the installation block (6); a fixing plate (18) is provided inside the installation block (6); a driving cylinder (19) is provided at the top of the installation block (6); the connecting rod of the driving cylinder (19) penetrates through the top of the installation block (6) and is connected to the fixing plate (18); the second pressing roller (7) is rotatably installed on the fixing plate (18).

3. A printing device for colored plastic bags according to claim 1, characterized in that, The adjusting assembly (11) includes an electric push rod (111), a first hinge seat (112), a second hinge seat (113), and a rocker arm (114). The adjusting support frame (10) is "L"-shaped and the electric push rod (111) is provided at the bottom of the adjusting support frame (10); the bottom of the electric push rod (111) is connected to the bottom of the adjusting support frame (10) through the first hinge seat (112); the output end of the electric push rod (111) is connected to the rocker arm (114) through the second hinge seat (113); one end of the rocker arm (114) is rotatably installed at the upper end of the adjusting support frame (10); the other end of the rocker arm (114) is rotatably installed with the fourth pressing roller (9).

4. A printing device for colored plastic bags according to claim 1, characterized in that, The drying mechanism (17) includes a rotating motor (171), a screw rod (172), a moving block (173), a rotating fan (174), a motor (175), and an infrared heating lamp tube (176). On the left side of the top of the drying box (16), there is provided the rotating motor (171); the output shaft of the rotating motor (171) is connected to the screw rod (172); the screw rod (172) is threadedly connected with the moving block (173); at the bottom of the moving block (173), there is provided the rotating fan (174); at the top of the moving block (173), there is provided the motor (175) for driving the rotating fan (174) to rotate; inside the drying box (16) and at the lower end of the rotating fan (174), there is provided the infrared heating lamp tube (176).

5. A printing device for colored plastic bags according to claim 1, characterized in that, The bottom of the drying box (16) is provided with a base support.

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