Printing device for environment-friendly paper bag

Abstract

The utility model discloses a printing device for environment-friendly paper bags, which belongs to the technical field of environment-friendly paper bag preparation and comprises a workbench, a conveying belt is arranged at the top of the workbench, and protective boxes are arranged at the tops of two sides of the workbench. The springs and the limiting columns are arranged in the first limiting boxes embedded in the two sides of the protection box, the movable blocks on the tops of the springs are connected with the connecting blocks of the printing assembly, and when a paper bag enters the bottom of the printing assembly and the induction plate induces the paper bag, the hydraulic telescopic rod drives the printing roller to move downwards, so that the printing template is pressed on the top of the paper bag; when the thickness of the paper bag changes, the spring can adjust the position of the movable block in a self-adaptive mode, meanwhile, the printing groove in the printing template plays a role in positioning the paper bag to a certain degree, the paper bag is not prone to transversely or longitudinally shifting in the printing process, and therefore the accuracy of printed patterns is guaranteed, and the printing quality of the paper bag is improved. And the printing defective rate caused by paper bag deviation is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of environmental protection paper bag preparation, and specifically relates to a printing device for environmental protection paper bags. BACKGROUND

[0002] With the increasing global environmental awareness, the demand for environmental protection products is growing, and traditional plastic bags cause serious pollution to the environment due to their non-degradability. Environmental protection paper bags gradually become an ideal choice to replace plastic bags due to their biodegradability and renewability. In the retail, packaging and other industries, the market demand for environmental protection paper bags is showing a rapid upward trend. For example, many large supermarkets and retail stores have promised to reduce the use of plastic bags and switch to environmental protection paper bags to pack goods, which greatly stimulates the production of environmental protection paper bags.

[0003] The existing environmental protection paper bags are difficult to effectively limit and fix the paper bags during printing, so that the paper bags are prone to deviation during printing, which affects the printing effect of the paper bags and further affects the production of the paper bags, causing certain economic losses. Therefore, an environmental protection paper bag printing device is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a printing device for environmental protection paper bags to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a printing device for environmental protection paper bags, comprising a workbench, the top of the workbench is provided with a conveyor belt, the top of both sides of the workbench is provided with a protective box, the inside of the protective box is provided with a printing assembly, the both sides of the protective box are embedded with a first limiting box, the printing assembly comprises a printing die plate, the both sides of the printing die plate are provided with a connecting block, the top of the printing die plate is provided with a soft cotton layer, the top of the soft cotton layer is provided with a filter plate, the top of the filter plate is provided with a printing roller, the both ends of the printing roller are provided with a hydraulic telescopic rod, a connecting rod is arranged between the two hydraulic telescopic rods, the side of the hydraulic telescopic rod is provided with a sliding block, and the bottom side of the printing die plate is provided with a sensing plate.

[0006] As a preferred embodiment, the number of the first limiting box is four, the inside of two first limiting boxes is provided with a limiting column, the inside of the other two first limiting boxes is provided with a spring, the top of the spring is provided with a movable block, the number of the movable block is four, the inside of two movable blocks is connected with the limiting column in penetration, and the side of each movable block is connected with a connecting block.

[0007] As a preferred embodiment, the inside of the protective box is provided with a guide rail on both sides, and the sliding block is connected with the guide rail.

[0008] As a preferred implementation form, one side of the stamping plate is provided with a second limiting box, the inside of the second limiting box is in the shape of an inverted bucket, the inside of the second limiting box is provided with an electric resistance wire, the top of the second limiting box is provided with a blowing pipe penetrating through, one side of the protective box is provided with a fan, and the blowing port of the fan is connected with the blowing pipe.

[0009] As a preferred implementation form, the stamping plate is provided with a printing groove.

[0010] As a preferred implementation form, the top of the workbench is embedded with a first limiting box, and the connecting block is movably connected with one side of the first limiting box.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses, the first limiting box embedded in the both sides of protective box is equipped with spring and limiting post, the movable block of spring top is connected with the connecting block of printing assembly, when the hydraulic telescopic rod drives the printing roller to move down when the inductive plate senses the paper bag when the paper bag enters the bottom of printing assembly, thereby fixes the paper bag, when the paper bag thickness has the change, the spring can adjust the position of movable block adaptively, guarantees the stable clamping of paper bag, simultaneously, the printing groove on the stamping plate also plays the positioning effect to the paper bag to a certain extent, makes the paper bag not easy to have the lateral or longitudinal deviation in the printing process, thereby guarantees the precision of printing pattern, greatly reduces the printing defective rate caused by the paper bag deviation.

[0013] The utility model discloses, the top of stamping plate in printing assembly is equipped with soft cotton layer and filter plate, and this design helps to realize even ink distribution, and the soft cotton layer can play the buffering effect, makes printing roller when pressing can more evenly transmit the ink to the stamping plate, avoids the problem that the ink is not the same in thickness because of uneven pressure, and the filter plate can further filter the ink, makes the ink more delicate and smooth when transmitting to the paper bag, thereby improves the definition and chroma saturation of printing pattern, one side of stamping plate is equipped with second limiting box, and the inside is in the shape of inverted bucket and is equipped with electric resistance wire, and the top is provided with blowing pipe penetrating through, and one side of protective box is equipped with fan, and the blowing port of fan is connected with blowing pipe, and this drying system integrated in the printing device can immediately dry the paper bag after printing, compared with the traditional mode that the paper bag after printing is transferred to the separate drying equipment, greatly saves the equipment floor area, reduces the risk that the ink can be damaged in the transfer process simultaneously, and improves production efficiency. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the schematic diagram of the utility model main body three-dimensional structure;

[0015] Figure 2It is the schematic diagram of the cross section solid structure of the utility model main body;

[0016] Figure 3 It is the schematic diagram of the cross section solid structure of the utility model printing assembly;

[0017] Figure 4 It is the schematic diagram of the solid structure of the utility model side view printing assembly;

[0018] Figure 5 It is the schematic diagram of the utility model Figure 3 The schematic diagram of the enlarged solid structure of A.

[0019] In the drawing: 1, workbench;2, conveying belt;3, protection box;4, printing assembly;5, first limit box;6, fan;7, limit column;8, spring;9, movable block;10, blowing pipe;11, second limit box;12, resistance wire;13, guide rail;401, printing plate;402, connecting block;403, soft layer;404, filter plate;405, printing roller;406, hydraulic telescopic rod;407, connecting rod;408, sliding block;409, induction plate. Specific implementation

[0020] The utility model will be further described below in combination with examples.

[0021] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept of the utility model belongs to the range of protection required by the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a kind of printing device of environmental protection paper bag, including workbench 1, the top of workbench 1 is equipped with conveying belt 2, the top of both sides of workbench 1 is equipped with protection box 3, the inside of protection box 3 is equipped with printing assembly 4, first limit box 5 is embedded in both sides of protection box 3, printing assembly 4 includes printing plate 401, both sides of printing plate 401 are equipped with connecting block 402, the top of printing plate 401 is equipped with soft layer 403, the top of soft layer 403 is equipped with filter plate 404, printing roller 405 is equipped above filter plate 404, hydraulic telescopic rod 406 is equipped in both ends of printing roller 405, connecting rod 407 is equipped between two hydraulic telescopic rods 406, sliding block 408 is equipped in one side of hydraulic telescopic rod 406, induction plate 409 is equipped in the bottom side of printing plate 401, when paper bag enters the bottom of printing assembly 4, when induction plate 409 senses paper bag, hydraulic telescopic rod 406 drives printing roller 405 to move down, so that printing plate 401 is pressed in the top of paper bag, to further fix paper bag, printing roller 405 can be driven to roll on printing plate 401 by guide rail 13 and sliding block 408, and paper bag is mechanically printed.

[0023] The number of the first limiting boxes 5 is four, the interior of two of which is provided with limiting posts 7, and the interior of the other two of which is provided with springs 8, the top of each of which is provided with a movable block 9, the interior of two of which is connected with the limiting post 7 in a penetrating mode, and one side of each of which is connected with a connecting block 402.

[0024] The interior of the protective box 3 is provided with guide rails 13 on both sides, and the sliding blocks 408 are connected with the guide rails 13.

[0025] One side of the printing plate 401 is provided with a second limiting box 11, the interior of which is in the shape of an inverted bucket, the interior of which is provided with a resistance wire 12, the top of which is provided with a blowing pipe 10 in a penetrating mode, and one side of the protective box 3 is provided with a fan 6, the blowing port of which is connected with the blowing pipe 10.

[0026] The printing plate 401 is provided with a printing groove.

[0027] The top of the workbench 1 is embedded with the first limiting box 5, and the connecting block 402 is movably connected with one side of the first limiting box 5, the wind blown by the fan 6 is heated by the resistance wire 12 and then blown to the paper bag through the blowing pipe 10, and the inverted bucket-shaped design of the second limiting box 11 helps to evenly distribute the hot air to the printing area of the paper bag, and the uniform drying can prevent the paper bag from being deformed due to local overheating or color deviation caused by uneven drying of the ink, thereby ensuring the quality of the paper bag, the protective box 3 on both sides of the top of the workbench 1 can protect the printing assembly 4 inside from the interference of dust, impurities and the like from the outside, thereby ensuring the normal operation of the printing assembly 4, when the paper bag is conveyed to the bottom of the induction plate 409, the infrared light emitted by the induction plate 409 is contacted, when the paper bag blocks the light or the reflected light changes, the induction plate 409 will generate a corresponding electric signal, and then the electric signal generated by the induction plate 409 will be transmitted to the control system of the printing device, thereby controlling the hydraulic telescopic rod 406 to move downward.

[0028] The working principle and use flow of the utility model are: first, the environmental protection paper bag is placed on the top of the workbench 1 and is moved to the bottom of the impression plate 401 in the protection box 1 along with the conveyer belt 2, then when the paper bag is inducted by the induction plate 409, the hydraulic telescopic rod 406 drives the printing roller 405 to move down, so as to press the impression plate 401 on the top of the paper bag, the guide rail 13 and the sliding block 408 can drive the printing roller 405 to roll on the impression plate 401 to print the paper bag mechanically, then the ink is uniformly transferred through the soft and soft layer 403 on the top of the impression plate 401, the filter plate 404 filters the ink, finally, the fan 6 blows air to the blowing pipe 10, after being heated by the resistance wire 12, the second limiting box 11 is uniformly blown to the paper bag to dry through the inverted bucket-shaped structure, in the whole process, the protection box 1 protects the internal components and guarantees the operation safety, the parts work cooperatively, and the high quality and high efficiency of the paper bag printing are ensured.

[0029] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A printing apparatus for environmentally friendly paper bags, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a conveyor belt (2), and the top of both sides of the workbench (1) are provided with protective boxes (3). The inside of the protective boxes (3) is provided with a printing assembly (4). The protective boxes (3) are embedded with first limiting boxes (5) on both sides. The printing assembly (4) includes a printing template (401). The printing template (401) is provided with connecting blocks (402) on both sides. The top of the printing template (401) is provided with a soft layer (403). The top of the soft layer (403) is provided with a filter plate (404). The filter plate (404) is provided with a printing roller (405) above it. The two ends of the printing roller (405) are provided with hydraulic telescopic rods (406). The two hydraulic telescopic rods (406) are provided with a connecting rod (407) between them. The side of the hydraulic telescopic rod (406) is provided with a slider (408). The bottom side of the printing template (401) is provided with a sensing plate (409).

2. The printing apparatus for an environmentally friendly paper bag according to claim 1, characterized in that: There are four first limiting boxes (5), two of which have limiting posts (7) inside, and the other two have springs (8) inside. The top of each spring (8) has a movable block (9). There are four movable blocks (9), two of which are connected through the limiting posts (7) inside. Each movable block (9) is connected to a connecting block (402) on one side.

3. The printing apparatus for an environmentally friendly paper bag according to claim 1, characterized in that: The protective box (3) has guide rails (13) on both sides inside, and the slider (408) is connected to the guide rails (13).

4. The printing apparatus for an environmentally friendly paper bag according to claim 1, characterized in that: The printing template (401) has a second limiting box (11) on one side. The interior of the second limiting box (11) is inverted bucket-shaped. The interior of the second limiting box (11) is equipped with a resistance wire (12). The top of the second limiting box (11) is provided with a blower pipe (10). The protective box (3) has a fan (6) on one side. The blower port of the fan (6) is connected to the blower pipe (10).

5. The printing apparatus for an environmentally friendly paper bag according to claim 1, characterized in that: The printing template (401) has a printing groove.

6. The printing apparatus for an environmentally friendly paper bag according to claim 1, characterized in that: The top of the workbench (1) is embedded with a first limiting box (5), and the connecting block (402) is movably connected to one side of the first limiting box (5).

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