Paper bag printing machine

Abstract

The utility model discloses a paper bag printing machine, which relates to the field of printing equipment, aims to solve the problem that the existing double-sided paper bag printing machine is only suitable for paper bags of one type and size, and adopts the technical scheme that the paper bag printing machine comprises a printing machine shell and two printing drying components arranged at the top of the printing machine shell, a plurality of turning plate assemblies which are in intermittent transmission and can clamp paper bags are arranged in the printing machine shell, each turning plate assembly comprises a turning plate, and a plurality of clamping opening assemblies which are distributed in the circumferential direction with the turning plate as the center are arranged in each turning plate. According to the paper bag double-face printing device, double-face printing can be conducted on paper bags with different thicknesses, the height of the through groove is adjusted through the sliding block to adapt to the thickness of the paper bags, the printing machine can more flexibly meet various different production requirements, the situation that clamping is not stable in the paper bag face turning process due to the fact that the material thickness is not suitable is reduced, and then the paper bag printing defective rate is reduced; and waste during paper bag printing is reduced.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, and more specifically, to a paper bag printing machine. Background Art

[0002] A paper bag printing press is a device specifically designed for printing paper bags. It typically consists of mechanisms such as plate loading, inking, embossing, and paper feeding. During the printing process, the paper bag printing press first creates a printing plate with the text and images to be printed and installs it on the press. The press then applies ink to the areas of the plate with text and images, and then directly or indirectly transfers the ink to the paper bag, creating a duplicate print identical to the printing plate.

[0003] However, most paper bag printing machines can only print one side at a time, and the paper bag needs to be manually turned over when printing the other side. For relatively hard and thick packaging paper bags, there are very few paper bag printing machines that can print both sides at a time. However, when using this type of paper bag printing machine, the clamping height of the mechanism that clamps the paper bag and turns it to the other side is difficult to adjust, resulting in it being difficult to adjust the size according to the product to be printed. As a result, this type of printing machine may not achieve the ideal printing effect when printing other products, and its application range is limited. For products of different sizes and types, some adjustments or replacement of corresponding components may be required before printing, which increases the difficulty and time cost of operation, resulting in insufficient flexibility and low printing efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a paper bag printing machine.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a paper bag printing machine, comprising a printing machine housing and two printing and drying components arranged on the top of the printing machine housing, wherein a plurality of intermittently driven flap components that can clamp paper bags are arranged in the printing machine housing, the flap component comprises a flap, and a plurality of clamp components distributed circumferentially with the flap as the center are arranged in the flap, a plurality of through slots are opened on the outer periphery of the flap, the clamp components can be extended into the through slots and the extension length thereof can be adjusted, sleeves are fixedly connected between adjacent flap components, and conveying components for conveying paper bags are arranged on both sides of the flap component.

[0006] By adopting the above technical solution, after printing on one side of the paper bag is completed, it will move to the through slot position along with the conveying component, and the height of the through slot will be adjusted by the slider to adapt to the thickness of the paper bag. Then the paper bag will move with the flip plate to another conveying component for printing on the other side of the paper bag. In this way, double-sided printing can be performed on paper bags of different thicknesses, which can enable the printing machine to more flexibly respond to various production needs, reduce waste caused by unsuitable material thickness, and improve the adaptability and printing efficiency of the printing machine.

[0007] The present invention is further configured such that: the number of the clamping components in the flap is an even number and is equal to the number of the through slots.

[0008] By adopting the above technical solution, when the flap is performing intermittent motion, the two clamping assemblies on one flap can be located on the same straight line, so that when the clamp clamps the paper bag, the clamp assembly at the other end of the straight line can simultaneously put down the paper bag.

[0009] The utility model is further configured as follows: a second sleeve is fixedly connected to the outermost flap, the second sleeve is rotatably connected to the printer housing, and one side of the second sleeve extends to the outside of the printer housing.

[0010] By adopting the above technical solution, the second sleeve extends outside the printer housing and connects all the flaps in series together with the sleeve. When the second sleeve is rotated outside, all the flaps will move accordingly.

[0011] The utility model is further configured as follows: the clamping assembly includes a slider and a screw, the side wall of the through slot is provided with a slide groove, the slider is slidably connected to the inner wall of the slide groove, the end of the slider away from the paper bag is provided with a threaded hole, and the screw is threadedly connected to the threaded hole.

[0012] By adopting the above technical solution, the rotation of the lead screw causes the slider to slide, which can make the slider slide smoothly in the slide groove, thereby improving the stability of the flap.

[0013] The utility model is further configured as follows: a rotating rod is rotatably connected between the two sides of the inner wall of the printing machine housing, the rotating rod passes through the sleeve and the flap and is rotatably connected to the flap, the rotation axis of the rotating rod coincides with the axis of the sleeve, a transmission assembly is provided in the flap, the rotating rod and the lead screw are connected through the transmission assembly and provide power for the sliding of the slider, so that the slider can adjust its sliding distance under the rotation of the rotating rod, and the distance between the slider and the side wall of the through slot can clamp the paper bag.

[0014] By adopting the above technical solution, when the rotating rod is rotated, the lead screws in all the flaps can be rotated through the transmission assembly connected to the rotating rod, thereby adjusting the extension length of all the sliders.

[0015] The utility model is further configured as follows: two baffles fixedly connected to the side walls of the printer housing are provided on the upper sides of the two conveying assemblies.

[0016] By adopting the above technical solution, the paper bag can be positioned to ensure that the paper bag moves smoothly in the conveying device.

[0017] The utility model is further configured as follows: the shape of one end of the four baffles close to the rotating rod is an arc extending outward.

[0018] By adopting the above technical solution, the friction force exerted by the baffle on the paper bag when the paper bag is turned over is reduced, thereby ensuring that the paper bag can be turned over smoothly with the turning plate after being inserted into the through slot.

[0019] In summary, the present invention has the following beneficial effects:

[0020] When one side of the paper bag is printed, it will move to the slot position with the conveying component. The height of the slot can be adjusted by the slider to adapt to the thickness of the paper bag, which enables the printing machine to respond more flexibly to various production needs and reduce waste caused by unsuitable material thickness. When the paper bag moves to another conveying component with the flip plate, the printing machine will print on the other side of the paper bag. In this way, double-sided printing can be performed on paper bags of different thicknesses, which can further improve the adaptability and printing efficiency of the printing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a top view of the utility model;

[0023] Figure 3 for Figure 2 AA section view;

[0024] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0025] Figure 5 for Figure 4 A magnified view of part B;

[0026] Figure 6 This is a schematic diagram of the internal structure of the flap of the utility model;

[0027] Figure 7 This is a schematic structural diagram of the second sleeve of the utility model.

[0028] In the figure: 1, printing machine housing; 2, sleeve; 21, second sleeve; 3, flap; 31, through slot; 32, slide slot; 4, slider; 5, lead screw; 6, rotating rod; 7, baffle. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 7 The bag is packed with the bag that has been taken out of the bag and has been put into operation for a long time.

[0031] like Figure 7 The motor shown is fixedly connected to the printer housing 1, and the output shaft of the motor is fixedly connected to an incomplete gear, and one end of the second sleeve 21 is fixedly connected to a complete gear. The incomplete gear meshes with the corresponding part of the complete gear. When the output shaft of the motor starts to rotate, it will drive the incomplete gear to rotate. When the incomplete gear rotates one circle and touches the complete gear, it will rotate a quarter of a circle, and the second sleeve 21 connected to the complete gear will also rotate a quarter of a circle, causing the flap 3 connected to the second sleeve 21 to do intermittent motion. The conveying assembly includes a conveying motor, a conveyor belt and a rotating roller. The output shaft of the conveying motor is fixedly connected to the rotating roller. When in use, start the conveying assembly first, and then put the paper bag from the feed port into a conveying assembly in the printer housing 1. When the paper bag moves on the conveyor belt of the conveying assembly, when the paper bag is conveyed to the printer along the conveyor belt When the component is below, the printing component starts and prints on the paper bag, and then the printing and drying component starts working, drying one side of the paper bag, and then the paper bag continues to move to the flap 3 position, and as the conveying component drives the paper bag to continue to move, the paper bag is stuck in the through slot 31. When the motor outside the printing machine housing 1 rotates, it drives the flap 3 connected to the second sleeve 21 to rotate, and the paper bag flips 180 degrees with the flap 3 to reach the next conveying component, so that the printed side contacts the conveyor belt of the conveying component, and then the second printing and drying component prints and dries the side of the paper bag that is not in contact with the conveyor belt of the conveying component. Finally, the paper bag arrives at the discharge port along the conveyor belt of the conveying component. Such a setting can realize double-sided printing of paper bags and is also suitable for paper bags of different thicknesses, thereby improving the applicability and printing efficiency of the printing machine.

[0032] like Figures 1 to 7 As shown, in this embodiment, the number of clamping assemblies in a flap 3 is set to four and is equal to the number of through slots 31, the clamping assembly includes a slider 4 and a screw shaft 5, the side wall of the through slot 31 is provided with a slide slot 32, the slider 4 is slidably connected to the inner wall of the slide slot 32, the end of the slider 4 away from the paper bag is provided with a threaded hole, the screw shaft 5 is threadedly connected to the threaded hole, a rotating rod 6 is rotatably connected between the two sides of the inner wall of the printing machine housing 1, the rotating axis of the rotating rod 6 coincides with the axis of the sleeve 2, the rotating rod 6 passes through the sleeve 2 and the flap 3, and a transmission assembly is provided in the flap 3, the rotating rod 6 and the screw shaft 5 are connected through the transmission assembly and provide power for the sliding of the slider 4, so that the slider 4 can adjust its sliding distance under the rotation of the rotating rod 6, the spacing between the slider 4 and the side wall of the through slot 31 can clamp the paper bag, the rotating rod 6 passes through the flap 3 and is rotatably connected to the flap 3, the slider 4 is controlled by the screw shaft 5, and the slider 4 moves more smoothly in the slide slot 32, thereby improving the adjustment accuracy of the printing machine.

[0033] Reference Figure 6 The transmission assembly in the flip plate 3 includes multiple bevel gears and transmission shafts. The rotating rod 6 runs through all the flip plates 3 and is fixedly connected to the first bevel gear in the flip plate 3. The first bevel gear fixedly connected to the rotating rod 6 is equidistantly meshed with the second bevel gears of the same number as the slider 4 on its circumference. Each second bevel gear is fixedly connected to the first transmission shaft, and the other end of the first transmission shaft is fixedly connected to a third bevel gear, which is meshed with the fourth bevel gear. The second transmission shaft is fixed in the fourth bevel gear, and the other end of the second transmission shaft is fixed with a fifth bevel gear. Each lead screw 5 is fixedly connected to a sixth bevel gear, and the fifth bevel gear is meshed with the sixth bevel gear. When the paper bag moves into the through slot 31, the rotating rod 6 is rotated to rotate the first bevel gear connected to it, and the rotation of the first bevel gear causes the matching The second bevel gear rotates, and the second bevel gear drives the first transmission shaft to rotate. The rotation of the first transmission shaft causes the third bevel gear on the first transmission shaft to rotate, thereby rotating the fourth bevel gear matched with the third bevel gear. The fourth bevel gear causes the second transmission shaft and the fifth bevel gear connected to the second transmission shaft to rotate. The fifth bevel gear drives the sixth bevel gear to rotate, thereby driving the lead screw 5 connected to the sixth bevel gear to rotate, so that the slider 4 threadedly connected to the lead screw 5 extends out, thereby adjusting the distance between the slider 4 and a side wall of the through slot 31 away from the corresponding side slider 4. Through such an arrangement, all sliders 4 in the printing press housing 1 can adjust the extension length by rotating the rod 6, thereby strengthening the connectivity of the various components, reducing the time required for adjusting the slider 4, facilitating operation, and improving the working efficiency of the printing press.

[0034] like Figure 3 As shown, two baffles 7 are fixedly connected to the upper side surfaces of the two conveying assemblies respectively, and the shape of one end of the four baffles 7 close to the rotating rod 6 is an arc extending outward.

[0035] The setting of the baffle 7 can enable the paper bag to maintain stable horizontal movement on the conveyor belt, which can effectively ensure the positioning accuracy and processing quality of the paper bag, reduce errors and scrap rates, and improve production efficiency and product quality. The shape of the end close to the rotating rod 6 is an arc extending outward, which can reduce the friction force exerted on the paper bag by the baffles 7 on both sides when the paper bag rotates with the flap 3 after the paper bag is inserted into the through slot 31. After the flip is completed, space is also reserved for putting down the paper bag, ensuring that the paper bag can be smoothly flipped with the flap 3 after being inserted into the through slot 31.

[0036] The movement process of this embodiment is as follows: first, put the paper bag to be printed into the through slot 31 of the flap 3, and then rotate the rotating rod 6 to drive the first bevel gear connected to it to rotate, thereby moving the transmission component engaged with it, so that the sixth bevel gear drives the lead screw 5 to rotate, so that the slider 4 threadedly connected to the lead screw 5 extends, so that the distance between the slider 4 and the side wall of the slider 4 31 away from the corresponding side is slightly greater than the thickness of the paper bag, then take out the paper bag and start the conveying component, and then put the paper bag from the feed port onto a conveying component in the printing machine housing 1. When the paper bag moves on the conveyor belt of the conveying component, the printing component and the printing and drying component start The paper bag is worked, and one side of the paper bag is printed and dried. Then the paper bag continues to move to the position of the flap 3. As the conveying assembly drives the paper bag to continue to move, the paper bag is stuck in the through slot 31. At the same time, the motor outside the printing machine housing 1 rotates, driving the flap 3 connected to the second sleeve 21 to rotate, and the paper bag flips 180 degrees with the flap 3 to reach the next conveying assembly. The flap 3 just stops, so that the printed side contacts the conveyor belt of the conveying assembly. Then the second printing and drying assembly prints and dries the side of the paper bag that is not in contact with the conveyor belt of the conveying assembly. Finally, the paper bag reaches the discharge port along the conveyor belt of the conveying assembly.

[0037] In summary, by adjusting the height of the through slot by the slider 4 to adapt to the thickness of the paper bag, the printing machine can respond to various production needs more flexibly, reduce the unstable clamping during the turning of the paper bag due to unsuitable material thickness, and thus reduce the defective rate of paper bag printing and reduce the waste during paper bag printing. When the paper bag moves with the flip plate 3 to another conveying component, the printing machine will print on the other side of the paper bag. In this way, double-sided printing can be performed on paper bags of different thicknesses, which can further improve the adaptability and printing efficiency of the printing machine.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A paper bag printing machine, comprising a printing machine housing (1) and two printing and drying components arranged on the top of the printing machine housing (1), characterized in that: The printing machine housing (1) is provided with a plurality of intermittently rotating flap assemblies capable of clamping paper bags, the flap assemblies comprising a flap (3), the flap (3) being provided with a plurality of clamping assemblies distributed circumferentially with the flap (3) as the center, a plurality of through slots (31) being provided on the outer circumference of the flap (3), the clamping assemblies being able to extend into the through slots (31) and the length of their extension being adjustable, a sleeve (2) being fixedly connected between adjacent flap assemblies, and a conveying assembly for conveying paper bags being provided on both sides of the flap assemblies.

2. A paper bag printing machine according to claim 1, characterized in that: The number of the clamping components in the flap (3) is an even number and is equal to the number of the through slots (31).

3. The paper bag printing machine according to claim 1, characterized in that: A second sleeve (21) is fixedly connected to the outermost flap (3), and the second sleeve (21) is rotatably connected to the printer housing (1), with one side of the second sleeve (21) extending outside the printer housing (1).

4. The paper bag printing machine according to claim 1, characterized in that: The clamping assembly comprises a slider (4) and a lead screw (5); a slide groove (32) is provided on the side wall of the through groove (31); the slider (4) is slidably connected to the inner wall of the slide groove (32); a threaded hole is provided at one end of the slider (4) away from the paper bag; and the lead screw (5) is threadedly connected to the threaded hole.

5. The paper bag printing machine according to claim 4, characterized in that: A rotating rod (6) is rotatably connected between the two sides of the inner wall of the printing machine housing (1). The rotating rod (6) passes through the sleeve (2) and the flap (3) and is rotatably connected to the flap (3). The rotation axis of the rotating rod (6) coincides with the axis of the sleeve (2). A transmission assembly is provided in the flap (3). The rotating rod (6) is connected to the lead screw (5) through the transmission assembly and provides power for the sliding of the slider (4), so that the slider (4) can adjust its sliding distance under the rotation of the rotating rod (6). The distance between the slider (4) and the side wall of the through slot (31) can clamp the paper bag.

6. The paper bag printing machine according to claim 5, characterized in that: Two baffles (7) fixedly connected to the side walls of the printing machine housing (1) are provided on the upper sides of the two conveying assemblies.

7. The paper bag printing machine according to claim 6, characterized in that: The shape of one end of the four baffles (7) close to the rotating rod (6) is an arc extending outward.

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