Multi-layer filtering device for water-based ink for printing

Abstract

The utility model provides a printing water-based ink multi-layer filtering device which comprises multiple layers of filtering sieves, the multiple layers of filtering sieves are arranged at intervals, the circumferential side walls of the multiple layers of filtering sieves are jointly and fixedly connected with multiple vertical supporting rods, and the upper ends of the multiple vertical supporting rods are jointly and fixedly connected with a top plate. An ink bucket is fixedly installed on the top plate, an arc-shaped clamping plate is elastically installed on the outer side of the lower end of the supporting rod, the centers of the multiple layers of filter sieves are jointly and rotationally connected with a rotating rod, a pair of scraping plates is fixed to the side wall, located in the filter sieves, of the rotating rod, and the bottoms of the scraping plates abut against bottom screen cloth of the filter sieves. The device adopts a form that multiple layers of filter sieves are arranged at intervals, cannot influence filtration due to air pressure difference, can be clamped on an ink barrel, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of printing ink filtration, in particular to a multi-layer filtration device for water-based printing ink. Background Art

[0002] Water-based ink is referred to as water-based ink. It is mainly made of water-soluble resin, organic pigment, water and related additives through composite grinding. Water-based ink is particularly suitable for packaging and printing products with strict hygiene requirements such as tobacco, alcohol, food, beverages, medicines, children's toys, etc., and is also suitable for printing decorative paper.

[0003] During the printing process of water-based ink, it will be contaminated with debris, and directly discarding it will cause waste, so it needs to be filtered before recycling. The current filtering method uses a multi-stage filter screen, but most of the current filter screens are directly stacked together, which causes the lower filter screen to be in a relatively closed state. During filtering, due to the pressure difference, the normal filtration of the lower ink is affected, and the current filter screen is not easy to get stuck on the ink barrel, which is inconvenient to use. Utility Model Content

[0004] In view of the above problems, the utility model provides a multi-layer filtering device for aqueous ink for printing. The device adopts a multi-layer filtering screen arranged at intervals, will not affect the filtering due to air pressure difference, and can also be clamped on the ink barrel, which is convenient to use.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A multi-layer filtering device for water-based ink for printing comprises a multi-layer filter screen, wherein the multi-layer filter screens are arranged at intervals, the circumferential side walls of the multi-layer filter screens are commonly fixedly connected to a plurality of vertical support rods, the upper ends of the plurality of vertical support rods are commonly fixedly connected to a top plate, an ink fountain is fixedly mounted on the top plate, an arc-shaped clamping plate is elastically mounted on the outer side of the lower end of the support rod, the centers of the multi-layer filter screens are commonly rotatably connected to a rotating rod, a pair of scrapers are fixed to the side walls of the rotating rod located inside the filter screen, and the bottoms of the scrapers abut against the bottom screen of the filter screen.

[0007] Preferably, a slide bar is fixedly connected to the outer side of the lower end of the support rod, a support plate is sleeved on the slide bar, the arc-shaped clamping plate is fixedly connected to the side wall corresponding to the support plate, and a spring is sleeved on the slide bar.

[0008] Preferably, the side wall of the abutment plate is also fixedly connected with a guide rod, and the end of the guide rod passes through the corresponding support rod.

[0009] Preferably, a mounting plate is fixed at the mouth of the ink fountain, a circular cavity is provided in the mounting plate, the upper end of the rotating rod extends into the circular cavity, a driving shaft is also rotatably connected in the circular cavity, the driving shaft and the upper end of the rotating rod are connected via a bevel gear pair, and the end of the driving shaft extends from one side of the top plate.

[0010] Preferably, the extended end of the driving shaft is butt-jointed with a motor, and the motor is fixedly mounted on the side wall of the top plate.

[0011] Preferably, the extended end of the driving shaft is fixedly docked with a hand wheel.

[0012] The beneficial effects of the utility model are:

[0013] 1. The multi-layer filter screens are spaced apart by multiple support rods, and the filtration will not be affected by the air pressure difference. The filtration efficiency is high. The multi-stage filtration process can be completed by simply pouring the ink into the ink hopper.

[0014] 2. By elastically installing multiple arc-shaped clamping plates, the filter device can be directly placed on the ink barrel. Multiple arc-shaped clamping plates clamp barrel openings of different calibers under the action of springs, which is convenient to use.

[0015] 3. By installing the rotating rod, scraper and bevel gear pair, during the filtration process, the motor can be started to drive the rotating rod to rotate through the bevel gear pair, and the rotating rod drives the scraper to rotate, pushing the impurities filtered by the screen to gather, thereby avoiding clogging of the entire screen and improving the filtration efficiency. The motor can also be replaced with a hand-cranked wheel to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 This is a top view of the filter screen proposed by the utility model.

[0019] In the figure: 1 filter screen, 2 rotating rod, 3 scraper, 4 top plate, 5 bevel gear pair, 6 motor, 7 ink fountain, 8 support rod, 9 back plate, 10 arc clamping plate, 11 spring, 12 guide rod, 13 slide rod, 14 mounting plate. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Reference Figure 1-3 A multi-layer filtering device for printing water-based ink comprises a multi-layer filter screen 1, the multi-layer filter screens 1 are arranged at intervals, a plurality of vertical support rods 8 are fixedly connected to the circumferential side walls of the multi-layer filter screen 1, a top plate 4 is fixedly connected to the upper ends of the plurality of vertical support rods 8, an ink fountain 7 is fixedly installed on the top plate 4, an arc-shaped clamping plate 10 is elastically installed on the outer side of the lower end of the support rod 8, a rotating rod 2 is rotatably connected to the center of the multi-layer filter screen 1, a pair of scrapers 3 are fixed to the side walls of the rotating rod 2 located inside the filter screen 1, and the bottom of the scraper 3 contacts the bottom screen of the filter screen 1.

[0023] Furthermore, a slide bar 13 is fixedly connected to the outer side of the lower end of the support rod 8, a butt plate 9 is sleeved on the slide bar 13, an arc-shaped clamping plate 10 is fixedly connected to the side wall of the corresponding butt plate 9, a spring 11 is sleeved on the slide bar 13, and a guide rod 12 is also fixedly connected to the side wall of the butt plate 9. The end of the guide rod 12 passes through the corresponding support rod 8, and multiple butt plates 9 are pulled to open multiple arc-shaped clamping plates 10 along the direction of the slide bar 13 and the guide rod 12, and they are mounted on the ink barrel, and the butt plate 9 is released. Under the action of the spring 11, multiple arc-shaped clamping plates 10 are reset and clamp the barrel mouth, which is convenient to use.

[0024] Furthermore, a mounting plate 14 is fixed at the mouth of the ink fountain 7, a circular cavity is provided in the mounting plate 14, the upper end of the rotating rod 2 extends into the circular cavity, a driving shaft is also rotatably connected in the circular cavity, the driving shaft and the upper end of the rotating rod 2 are connected by a bevel gear pair 5, the end of the driving shaft extends from one side of the top plate 4, and the rotating rod 2 is driven to rotate by the bevel gear pair 5, and the rotating rod 2 drives the scraper 3 to rotate, pushing the impurities filtered by the screen to gather, thereby avoiding clogging of the entire screen and improving the filtration efficiency.

[0025] Furthermore, the extended end of the driving shaft is butted against a motor 6 , and the motor 6 is fixedly mounted on the side wall of the top plate 4 , and can be driven by the motor 6 .

[0026] Furthermore, the extended end of the driving shaft is fixedly connected to a hand-cranked wheel, and the motor 6 can also be replaced with a hand-cranked wheel to reduce costs.

[0027] When in use, pull the multiple abutment plates 9 to open the multiple arc-shaped clamping plates 10 along the direction of the slide rod 13 and the guide rod 12, and set them on the ink barrel. Release the abutment plates 9. Under the action of the spring 11, the multiple arc-shaped clamping plates 10 are reset to clamp the barrel mouth, and the ink to be filtered is poured into the ink fountain 7. The ink flows into the ink barrel after being filtered by the multi-layer filter screen 1. The multiple support rods 8 set the multi-layer filter screen 1 at intervals, and the filtration will not be affected by the air pressure difference. During the filtration process, the motor 6 can be started, and the rotating rod 2 can be driven to rotate through the bevel gear pair 5. The rotating rod 2 drives the scraper 3 to rotate, pushing the impurities filtered by the screen to gather, thereby avoiding the blockage of the entire screen and improving the filtration efficiency. The motor 6 can also be replaced with a hand-cranked wheel to reduce costs.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-layer filtering device for aqueous ink for printing, comprising a multi-layer filtering screen (1), characterized in that: The plurality of layers of the filter screen (1) are arranged at intervals, and the circumferential side walls of the plurality of layers of the filter screen (1) are fixedly connected to a plurality of vertical support rods (8), and the upper ends of the plurality of vertical support rods (8) are fixedly connected to a top plate (4), and an ink fountain (7) is fixedly mounted on the top plate (4). An arc-shaped clamping plate (10) is elastically mounted on the outer side of the lower end of the support rod (8), and the center of the plurality of layers of the filter screen (1) is rotatably connected to a rotating rod (2), and a pair of scrapers (3) are fixed to the side walls of the rotating rod (2) located inside the filter screen (1), and the bottom of the scraper (3) contacts the bottom screen of the filter screen (1).

2. A multi-layer filtration device for aqueous ink for printing according to claim 1, characterized in that: A sliding rod (13) is fixedly connected to the outer side of the lower end of the support rod (8), a support plate (9) is sleeved on the sliding rod (13), the arc-shaped clamping plate (10) is fixedly connected to the side wall of the corresponding support plate (9), and a spring (11) is sleeved on the sliding rod (13).

3. A multi-layer filtration device for aqueous printing ink according to claim 2, characterized in that: The side wall of the abutment plate (9) is also fixedly connected to a guide rod (12), and the end of the guide rod (12) passes through the corresponding support rod (8).

4. A multi-layer filtration device for aqueous printing ink according to claim 1, characterized in that: A mounting plate (14) is fixed at the mouth of the ink fountain (7), a circular cavity is provided in the mounting plate (14), the upper end of the rotating rod (2) extends into the circular cavity, a driving shaft is rotatably connected in the circular cavity, the driving shaft is connected to the upper end of the rotating rod (2) via a bevel gear pair (5), and the end of the driving shaft extends from one side of the top plate (4).

5. A multi-layer filtration device for aqueous ink for printing according to claim 4, characterized in that: The extended end of the driving shaft is butt-jointed with a motor (6), and the motor (6) is fixedly mounted on the side wall of the top plate (4).

6. A multi-layer filtration device for aqueous printing ink according to claim 4, characterized in that: The extended end of the driving shaft is fixedly connected to a hand-cranked wheel.

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