Waste liquid recycling device for printing machine

Abstract

The waste liquid recycling device for the printing machine comprises a box body, a partition plate is fixedly connected in the box body, a first filter screen is arranged above the partition plate, a second filter screen and an activated carbon filter layer are arranged below the partition plate, and a feeding valve is fixedly connected to the side wall between the first filter screen and the partition plate. A vibration mechanism capable of enabling the first filter screen to vibrate is arranged below the first filter screen, a stirring device and a drainage valve are arranged on the partition plate, a controller is fixedly connected to the box body, and the controller is electrically connected with the feeding valve and the drainage valve. According to the utility model, a multi-stage filtering mode is adopted, and the treatment effect of waste liquid is ensured by utilizing the matched use of the two-stage filter screen, the chemical coagulation layer and the activated carbon filter layer; different modes can be selected through the controller, printing ink cleaning waste liquid or fountain solution waste liquid is selected to be treated, and the utilization rate of equipment is increased; by arranging the vibration mechanism, the first filter screen can be kept in a vibration state in the process of filtering the waste liquid, and the filter screen is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of printing, in particular to a waste liquid recycling device for a printing machine. Background Art

[0002] A printing press uses a fountain solution during the printing process, and the fountain solution may be contaminated during use, resulting in the fountain solution after printing containing a large amount of ethanol or isopropanol, ink, buffer, paper powder and other impurities, forming fountain solution waste liquid. At the same time, the printing press needs to be cleaned during use, and the waste liquid after cleaning contains a large amount of ink, paper powder and other impurities, forming ink cleaning waste liquid. These two types of waste liquids are contaminated and cannot be used anymore, which will cause waste. Therefore, a device that can recycle the waste liquid of the printing press is needed.

[0003] The existing waste liquid recycling device for printing machines only filters the waste liquid through a filter screen. The filtered liquid still contains pollutants and cannot be used again. Moreover, the existing waste liquid recycling device can only filter a certain type of waste liquid, and the equipment utilization rate is relatively low. In addition, when using the filter screen for filtering, the filter screen is often blocked, affecting the filtering effect. Utility Model Content

[0004] The purpose of the utility model is to provide a waste liquid recycling device for a printing machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waste liquid recycling device for a printing machine comprises a box body, a partition is fixedly connected inside the box body, a first filter screen is arranged above the partition, a second filter screen and an activated carbon filter layer are arranged from top to bottom below the partition, the first filter screen, the second filter screen and the activated carbon filter layer are all detachably connected to the box body, a feed pipe is fixedly connected to the side wall between the first filter screen and the partition, a feed valve is fixedly connected to the feed pipe, a vibration mechanism for vibrating the first filter screen is arranged below the first filter screen, a stirring device and a drain valve are arranged on the partition, a controller is fixedly connected to the box body, and the controller is electrically connected to the feed valve and the drain valve.

[0007] As a further solution of the utility model: a first mounting groove is provided on the inner walls on both sides of the box body above the partition, and a first connecting plate is fixedly connected to both sides of the first filter screen, the first connecting plate is slidably connected to the first mounting groove, and the height of the first mounting groove is higher than the height of the first connecting plate.

[0008] As a further solution of the utility model: the vibration mechanism includes two vibration components relatively arranged on both sides of the box body, the vibration component includes a first motor fixedly connected to the box body, the output end of the first motor is fixedly connected to the first rotating shaft, the first rotating shaft penetrates into the box body and is rotatably connected to the box body, the other end of the first rotating shaft is fixedly connected to the first bevel gear, one side of the first bevel gear is meshingly connected to the second bevel gear, the second bevel gear is fixedly connected to the second rotating shaft, the other end of the second rotating shaft is rotatably connected to the box body, a connecting block is fixedly connected to the second rotating shaft, a top block is fixedly connected to the connecting block, a fixed seat is provided on one side of the connecting block, the fixed seat is rotatably connected to the second rotating shaft, and the fixed seat is fixedly connected to the box body.

[0009] As a further solution of the utility model: the stirring device includes a second motor, the output end of the second motor is fixedly connected to a driving gear, a driven gear is provided on each side of the driving gear, the driven gear is meshed and connected with the driving gear, a third rotating shaft is fixedly connected inside the driven gear, the third rotating shaft passes through the partition and is rotatably connected thereto, a stirring blade is fixedly connected to the third rotating shaft, a mounting frame is fixedly connected under the partition, and the second motor is fixedly connected to the mounting frame.

[0010] As a further solution of the utility model: a second mounting groove and a third mounting groove are provided under the partition, and a second connecting plate and a third connecting plate are fixedly connected on both sides of the second filter screen and the activated carbon filter layer, and the second connecting plate and the third connecting plate are movably connected to the second mounting groove and the third mounting groove respectively.

[0011] As a further solution of the utility model: two drain valves are arranged opposite to each other on the partition, and the drain valves are fixedly connected to the partition.

[0012] As a further solution of the utility model: a water inlet pipe connected to the printing press is fixedly connected to the upper part of the box body, and a water outlet pipe is fixedly connected to the lower part of the box body.

[0013] As a further solution of the utility model: a first box door and a second box door are hinged on the front side wall of the box body, the first box door is opposite to the first filter screen, the second box door is opposite to the second filter screen and the activated carbon filter layer, and a plurality of legs are fixedly connected to the bottom of the box body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model adopts a multi-stage filtration method, and utilizes the coordinated use of the first filter screen, chemical coagulation, the second filter screen and the activated carbon filter layer to ensure the treatment effect of the waste liquid; different modes can be selected through the controller to choose to treat the ink cleaning waste liquid or the fountain solution waste liquid, thereby improving the utilization rate of the equipment; by setting a vibration mechanism, the first filter screen can be kept in a vibrating state during the filtering of the waste liquid, thereby preventing the first filter screen from being blocked and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic diagram of the structure of a waste liquid recycling device for a printing machine.

[0016] Figure 2 The present invention is a cross-sectional view of a waste liquid recycling device for a printing press in a state where the first filter screen is lifted up.

[0017] Figure 3 The present invention is a cross-sectional view of a first filter screen in a waste liquid recycling device for a printing press in a falling state.

[0018] Figure 4 It is a cross-sectional view of a waste liquid recycling device for a printing machine along the AA direction.

[0019] In the figure: 1. box body; 11. water inlet pipe; 12. water outlet pipe; 13. first mounting groove; 14. second mounting groove; 15. third mounting groove; 16. first box door; 17. second box door; 18. support leg; 2. partition; 3. first filter screen; 31. first connecting plate; 4. second filter screen; 41. second connecting plate; 5. activated carbon filter layer; 51. third connecting plate; 6. vibration mechanism; 61. first motor; 62. first rotating shaft; 63. first bevel gear; 64. second bevel gear; 65. second rotating shaft; 66. connecting block; 67. top block; 68. fixed seat; 7. stirring device; 71. second motor; 72. driving gear; 73. driven gear; 74. third rotating shaft; 75. stirring blade; 76. mounting frame; 8. feeding pipe; 81. feeding valve; 9. drain valve; 10. controller. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] See also Figures 1 to 4In an embodiment of the utility model, a waste liquid recycling device for a printing machine includes a box body 1, a partition 2 is fixedly connected inside the box body 1, a first filter screen 3 is arranged above the partition 2, a second filter screen 4 and an activated carbon filter layer 5 are arranged from top to bottom below the partition 2, the first filter screen 3, the second filter screen 4 and the activated carbon filter layer 5 are all detachably connected to the box body 1, a feed pipe 8 is fixedly connected to the side wall between the first filter screen 3 and the partition 2, a feed valve 81 is fixedly connected to the feed pipe 8, a vibration mechanism 6 that can vibrate the first filter screen 3 is arranged below the first filter screen 3, a stirring device 7 and a drain valve 9 are arranged on the partition 2, a controller 10 is fixedly connected to the box body 1, and the controller 10 is electrically connected to the feed valve 81 and the drain valve 9.

[0022] like Figure 2 and Figure 3 As shown, a first mounting groove 13 is provided on the inner walls on both sides of the box body 1 above the partition 2, and a first connecting plate 31 is fixedly connected to both sides of the first filter screen 3, and the first connecting plate 31 is slidably connected to the first mounting groove 13. The first filter screen 3 is inserted into the first mounting groove 13 through the first connecting plate 31. The height of the first mounting groove 13 is higher than the height of the first connecting plate 31, thereby ensuring that the first filter screen 3 can slide in the first mounting groove 13.

[0023] like Figure 2-Figure 4 As shown, the vibration mechanism 6 includes two vibration components arranged on both sides of the box body 1, and the vibration component includes a first motor 61 fixedly connected to the box body 1. The output end of the first motor 61 is fixedly connected to the box body 1.

[0024] A first rotating shaft 62 is fixedly connected, and the first rotating shaft 62 penetrates into the box body 1 and is rotatably connected to the box body 1. The other end of the first rotating shaft 62 is fixedly connected to the first bevel gear 63, and one side of the first bevel gear 63 is meshed with the second bevel gear 64. The second bevel gear 64 is fixedly connected with the second rotating shaft 65, and the other end of the second rotating shaft 65 is rotatably connected to the box body 1. A connecting block 66 is fixedly connected to the second rotating shaft 65, and a top block 67 is fixedly connected to the connecting block 66. A fixed seat 68 is provided on one side of the connecting block 66, and the fixed seat 68 is rotatably connected to the second rotating shaft 65, and the fixed seat 68 is fixedly connected to the box body 1. When the first filter screen 3 is working, the first motors 61 on both sides are started, the first motor 61 drives the first rotating shaft 62 to rotate, the first rotating shaft 62 drives the first bevel gear 63 to rotate, the first bevel gear 63 drives the second bevel gear 64 to rotate, the second bevel gear 64 drives the second rotating shaft 65 to rotate, the second rotating shaft 65 drives the upper connecting block 66 to rotate, the connecting block 66 drives the top block 67 to rotate, when the top block 67 rotates to the upper side, the first filter screen 3 is lifted up, when the top block 67 rotates downward, the first filter screen 3 falls downward, when the top block 67 continues to rotate to the upper side again, the first filter screen 3 is lifted up again, and then falls down again, and this cycle is repeated, so that the first filter screen 3 is in a vibrating state when filtering the waste liquid, thereby effectively preventing blockage.

[0025] The stirring device 7 includes a second motor 71, the output end of the second motor 71 is fixedly connected with a driving gear 72, and a driven gear 73 is provided on both sides of the driving gear 72, and the driven gear 73 is meshed with the driving gear 72, and a third rotating shaft 74 is fixedly connected inside the driven gear 73, and the third rotating shaft 74 passes through the partition 2 and is rotatably connected thereto, and a stirring blade 75 is fixedly connected to the third rotating shaft 74, and a mounting frame 76 is fixedly connected below the partition 2, and the second motor 71 is fixedly connected to the mounting frame 76. When working, the second motor 71 is started, and the second motor 71 drives the driving gear 72 to rotate, and the driving gear 72 drives the driven gears 73 on both sides to rotate, and the driven gear 73 drives the third rotating shaft 74 on both sides to rotate, and the third rotating shaft 74 drives the stirring blade 75 to rotate, so as to stir the ink washing waste liquid and the coagulant and accelerate the reaction speed.

[0026] A second mounting groove 14 and a third mounting groove 15 are provided below the partition 2, and a second connecting plate 41 and a third connecting plate 51 are fixedly connected to both sides of the second filter screen 4 and the activated carbon filter layer 5, respectively. The second connecting plate 41 and the third connecting plate 51 are movably connected to the second mounting groove 14 and the third mounting groove 15, respectively.

[0027] Two drain valves 9 are arranged opposite to each other on the partition 2, and the drain valves 9 are fixedly connected to the partition 2. A water inlet pipe 11 connected to the printing press is fixedly connected to the top of the box body 1, and a water outlet pipe 12 is fixedly connected to the bottom. A first box door 16 and a second box door 17 are hinged on the front side wall of the box body 1. The first box door 16 is opposite to the position of the first filter screen 3, and the second box door 17 is opposite to the position of the second filter screen 4 and the activated carbon filter layer 5. A plurality of legs 18 are fixedly connected to the bottom of the box body 1. When the first filter screen 3, the second filter screen 4 or the activated carbon filter layer 5 needs to be replaced, the first box door 16 or the second box door 17 is opened, and the first filter screen 3, the second filter screen 4 or the activated carbon filter layer 5 to be replaced is pulled out therefrom, and the replacement can be easily performed, which is convenient to operate and saves costs.

[0028] The working principle of the utility model is: the utility model adopts a multi-stage filtration method to ensure the treatment effect of the waste liquid, and different modes can be selected through the controller 10 to treat different types of waste liquid. The utility model can treat ink cleaning waste liquid or fountain solution waste liquid. When the ink cleaning waste liquid treatment mode is selected through the controller 10, the controller 10 controls the drain valve 9 to close and the feed valve 81 to open, and pours the coagulant into the feed pipe 8. After the ink cleaning waste liquid to be treated enters the box body 1, it first passes through the first filter screen 3 to pre-treat the larger suspended matter and solid particles in the ink cleaning waste liquid. In this step, since the impurity particles are large and the first filter screen 3 is easily blocked, the vibration mechanism 6 below it can be turned on to make the first filter screen 3 in a vibrating state during operation, which can effectively prevent blockage. The ink cleaning waste liquid filtered by the first filter screen 3 flows into the partition 2 and mixes with the coagulant. In order to accelerate the reaction of the ink cleaning waste liquid and the coagulant, the stirring device 7 can be turned on. After sufficient reaction, the ink particles and fine suspended matter are mixed with the coagulant. The waste ink cleaning liquid is aggregated into larger particles. At this time, the drain valve 9 is opened, and the ink cleaning waste liquid flows into the second filter screen 4 to filter the particles. The filtered ink cleaning waste liquid flows to the activated carbon filter layer 5 to remove residual organic matter and pigments to obtain clear water quality. The clean liquid can be discharged through the outlet pipe 12 for later use; when the fountain solution waste liquid treatment mode is selected through the controller 10, since the fountain solution waste liquid is mainly composed of water, ethanol or isopropanol, buffer, surfactant, etc., compared with the ink cleaning waste liquid, its pollutant concentration is lower, and no chemical coagulation step is required during treatment, so the controller 10 controls the drain valve 9 to open and the feed valve 81 to close, and the fountain solution waste liquid is filtered through the first filter screen 3, the second filter screen 4 and the activated carbon filter layer 5, and then it can be discharged for later use; in the utility model, the first filter screen 3, the second filter screen 4 and the activated carbon filter layer 5 are all movably connected to the box body 1. When replacement is required, it can be easily replaced through the first box door 16 and the second box door 17, which is convenient to operate.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waste liquid recycling device for a printing press, comprising a housing (1), characterized in that: A partition (2) is fixedly connected inside the box body (1), a first filter screen (3) is arranged above the partition screen (2), a second filter screen (4) and an activated carbon filter layer (5) are arranged from top to bottom below the partition screen (2), the first filter screen (3), the second filter screen (4) and the activated carbon filter layer (5) are all detachably connected to the box body (1), a feed pipe (8) is fixedly connected to the side wall between the first filter screen (3) and the partition screen (2), a feed valve (81) is fixedly connected to the feed pipe (8), a vibration mechanism (6) capable of vibrating the first filter screen (3) is arranged below the first filter screen (3), a stirring device (7) and a drain valve (9) are arranged on the partition screen (2), a controller (10) is fixedly connected to the box body (1), and the controller (10) is electrically connected to the feed valve (81) and the drain valve (9).

2. A waste liquid recycling device for a printing press according to claim 1, characterized in that: First mounting grooves (13) are provided on the inner walls of both sides of the box body (1) above the partition (2), and first connecting plates (31) are fixedly connected to both sides of the first filter screen (3), and the first connecting plates (31) are slidably connected to the first mounting grooves (13), and the height of the first mounting grooves (13) is higher than the height of the first connecting plates (31).

3. The waste liquid recycling device for a printing press according to claim 2, characterized in that: The vibration mechanism (6) comprises two vibration components which are arranged oppositely on both sides of the housing (1), the vibration components comprising a first motor (61) fixedly connected to the housing (1), the output end of the first motor (61) being fixedly connected to a first rotating shaft (62), the first rotating shaft (62) penetrating into the housing (1) and being rotatably connected to the housing (1), the other end of the first rotating shaft (62) being fixedly connected to a first bevel gear (63), one side of the first bevel gear (63) being meshingly connected to a second bevel gear (64), a second rotating shaft (65) being fixedly connected inside the second bevel gear (64), the other end of the second rotating shaft (65) being rotatably connected to the housing (1), a connecting block (66) being fixedly connected to the second rotating shaft (65), a top block (67) being fixedly connected to the connecting block (66), a fixing seat (68) being provided on one side of the connecting block (66), the fixing seat (68) being rotatably connected to the second rotating shaft (65), and the fixing seat (68) being fixedly connected to the housing (1).

4. The waste liquid recycling device for a printing press according to claim 3, characterized in that: The stirring device (7) comprises a second motor (71), the output end of the second motor (71) is fixedly connected to a driving gear (72), a driven gear (73) is provided on each side of the driving gear (72), the driven gear (73) is meshedly connected to the driving gear (72), a third rotating shaft (74) is fixedly connected inside the driven gear (73), the third rotating shaft (74) passes through the partition (2) and is rotatably connected thereto, a stirring blade (75) is fixedly connected to the third rotating shaft (74), a mounting frame (76) is fixedly connected below the partition (2), and the second motor (71) is fixedly connected to the mounting frame (76).

5. The waste liquid recycling device for a printing press according to claim 4, characterized in that: A second mounting groove (14) and a third mounting groove (15) are provided below the partition (2); a second connecting plate (41) and a third connecting plate (51) are fixedly connected to both sides of the second filter screen (4) and the activated carbon filter layer (5); and the second connecting plate (41) and the third connecting plate (51) are movably connected to the second mounting groove (14) and the third mounting groove (15), respectively.

6. The waste liquid recycling device for a printing press according to claim 5, characterized in that: Two drain valves (9) are arranged opposite to each other on the partition (2), and the drain valves (9) are fixedly connected to the partition (2).

7. The waste liquid recycling device for a printing press according to claim 6, characterized in that: A water inlet pipe (11) connected to the printing press is fixedly connected to the upper part of the box body (1), and a water outlet pipe (12) is fixedly connected to the lower part.

8. The waste liquid recycling device for a printing press according to claim 1, characterized in that: A first box door (16) and a second box door (17) are hingedly connected to the front side wall of the box body (1); the first box door (16) is opposite to the first filter screen (3); the second box door (17) is opposite to the second filter screen (4) and the activated carbon filter layer (5); and a plurality of legs (18) are fixedly connected to the bottom of the box body (1).

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