A coating die cleaning device

Abstract

The present invention belongs to the technical field of coating equipment, and specifically relates to a coating die cleaning device, the cleaning device comprising a lower die, an upper die being assembled on one side of the upper end of the lower die, a solvent flow channel and a plurality of liquid inlets being provided inside the upper die, and the solvent flow channel and the plurality of liquid inlets being interconnected, a plurality of T-shaped blocks being assembled inside the solvent flow channel, and a liquid outlet being provided at one end of the upper die. The present invention can attach a sealing cover to one side of the upper die, and then, by supplying compressed air to a vacuum generator, the sealing cover is tightly attached to the upper die, and a cleaning solvent is supplied to the solvent flow channel by a diaphragm pump, and the solvent flow channel and the surface of the T-shaped block are cleaned by the cleaning solvent. At the same time, the gravity of the filter element and the impurities on its surface is measured by a tension sensor. When the gravity of the filter element and the impurities on its surface is greater than a set gravity threshold, the staff can clean the filter element in a timely manner.

Description

Technical Field

[0001] The invention belongs to the technical field of coating equipment, and particularly relates to a coating die head cleaning device. Background Art

[0002] In modern industrial production, coating technology is widely used in the processing and manufacturing of various materials, such as paper, film, and textiles. The die head used in the coating process is a key component for achieving uniform coating. However, over long periods of operation, paint residue, dust, and other impurities accumulate on the die head. These contaminants can affect coating quality and lead to product defects such as streaks, bubbles, uneven coatings, and the inability to adjust T-blocks due to solidified residual slurry. Therefore, regular cleaning of the die head is crucial to ensuring coating quality and production efficiency.

[0003] Currently, there are many die cleaning methods on the market, including manual cleaning, ultrasonic cleaning, etc. However, each of these methods has its shortcomings:

[0004] 1. Manual cleaning is inefficient, time-consuming and labor-intensive, and it is difficult to completely remove dirt inside the die head, resulting in poor cleaning results.

[0005] 2. Although ultrasonic cleaning is effective, the equipment cost is high and the die head needs to be disassembled and assembled, which makes the operation complicated and not suitable for frequent use.

[0006] Based on the above problems, this application document proposes a coating die cleaning device to improve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a coating die cleaning device, which can attach the sealing cover to one side of the upper die head, and then supply compressed air to the vacuum generator so that the sealing cover is tightly attached to the upper die head, and a cleaning solvent is supplied to the inside of the solvent flow channel through a diaphragm pump, and the inside of the solvent flow channel and the surface of the T-shaped block are cleaned by the cleaning solvent. At the same time, the gravity of the filter element and impurities on its surface are measured by a tension sensor. When the gravity of the filter element and impurities on its surface is greater than the set gravity threshold, the staff can clean the filter element in time.

[0008] The technical solutions adopted by the present invention are as follows:

[0009] A coating die cleaning device comprises a lower die, an upper die being mounted on one side of an upper end of the lower die, a solvent flow channel and a plurality of liquid inlets being provided inside the upper die, the solvent flow channel and the plurality of liquid inlets being interconnected, a plurality of T-shaped blocks being provided inside the solvent flow channel, a liquid outlet being provided at one end of the upper die, the solvent flow channel and the liquid outlet being interconnected, and further comprising:

[0010] A cleaning section, comprising a sealing cover, a vacuum generator, and a diaphragm pump. The sealing cover is detachably mounted on one side of the upper die head. After the sealing cover and the upper die head are in contact, a sealed cleaning chamber is formed inside the sealing cover, and the sealing cover is adapted to a T-shaped block. The vacuum generator is fixed to the upper end of the sealing cover, and a plurality of return sleeves are provided at the lower end of the sealing cover. The diaphragm pump is disposed at one end outside the lower die head, and the diaphragm pump and the liquid inlet are connected via a cleaning hose.

[0011] A liquid storage portion, the liquid storage portion is arranged between the sealing cover and the diaphragm pump, the liquid storage portion and the liquid outlet, the liquid storage portion and the diaphragm pump, and the liquid storage portion and the return sleeve are all connected by a return hose, and a circulation path is formed among the diaphragm pump, the cleaning hose, the liquid inlet, the solvent flow channel, the liquid outlet, the sealing cover, the return hose, and the liquid storage portion;

[0012] Wherein, after compressed air is input into the input end of the vacuum generator, the interior of the sealing cover becomes a negative pressure space.

[0013] In a preferred embodiment, a pressure regulating port is provided at one end of the upper die head away from the liquid outlet, and the pressure regulating port and the solvent flow channel are interconnected, and a safety valve is fixed inside the pressure regulating port.

[0014] In a preferred embodiment, a one-way valve is fixed inside each of the plurality of liquid inlets, and the cleaning hose is connected to the liquid inlet via the one-way valve.

[0015] In a preferred embodiment, a sealing ring is fixed to one end of the sealing cover close to the upper die head, and the sealing ring is made of rubber.

[0016] In a preferred embodiment, the liquid storage part includes a liquid storage tank, a cover plate, a drive motor, a threaded rod, a partition, a cross arm, multiple tension sensors, multiple linkage rods and a filter element. The liquid storage tank is arranged at one end of the lower die head, the cover plate is detachably fixed to the upper end of the liquid storage tank, the drive motor is fixed to the upper end of the cover plate, the threaded rod is fixed to the output end of the drive motor, and the threaded rod and the cover plate are rotatably connected, the partition is slidably connected to the inside of the liquid storage tank, and the partition is rotatably connected to the threaded rod, the cross arm is threadedly connected to the outside of the threaded rod, multiple tension sensors are respectively fixed to the lower ends of both ends of the cross arm, multiple linkage rods are respectively fixed to the lower ends of multiple tension sensors, and the linkage rod and the partition are slidably connected, and the filter element is fixed to the lower ends of multiple linkage rods.

[0017] In a preferred embodiment, a return pipe is provided at the upper end of the outer side of the liquid storage tank, and a liquid outlet pipe is provided at the lower end of the outer side of the liquid storage tank. In the working state, the filter element is located between the return pipe and the liquid outlet pipe.

[0018] In a preferred embodiment, an annular boss is fixed inside the liquid storage tank, and the annular boss is matched with the filter element.

[0019] In a preferred embodiment, a guide rib is fixed to the inner wall of the liquid storage tank, the guide rib is matched with the partition, and the partition and the liquid storage tank are slidably connected via the guide rib.

[0020] The technical effects achieved by the present invention are:

[0021] After the sealing cover is attached to one side of the upper die head, the sealing cover is tightly attached to the upper die head by supplying compressed air to the vacuum generator, and a cleaning solvent is supplied to the interior of the solvent flow channel by a diaphragm pump. The interior of the solvent flow channel and the surface of the T-shaped block are cleaned by the cleaning solvent and the solvent flows back to the interior of the liquid storage part, and residual waste chips can be sucked out, thereby improving the cleaning effect and cleaning efficiency.

[0022] The present invention drives the filter element and impurities on its surface to move through a driving motor, and measures the gravity of the filter element and impurities on its surface through a tension sensor. When the gravity of the filter element and impurities on its surface is greater than the set gravity threshold, the staff can clean the filter element in time, thereby ensuring the filtering effect and efficiency of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 It is a front view of the overall structure of the present invention;

[0025] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0026] Figure 4 This invention Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0027] Figure 5 It is a structural schematic diagram of the lower die head and the upper die head of the present invention;

[0028] Figure 6 It is a rear view of the lower die head and the upper die head of the present invention;

[0029] Figure 7 It is a partial structural cross-sectional view of the upper die head of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the liquid storage portion of the present invention;

[0031] Figure 9 Schematic diagram of the internal structure of the liquid storage portion of the present invention;

[0032] Figure 10It is a structural cross-sectional view of the liquid storage portion of the present invention;

[0033] Figure 11 This invention Figure 10 A partial enlarged schematic diagram of point B in the middle.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 10. Lower die head; 11. Upper die head; 12. Solvent flow channel; 13. Liquid inlet; 14. T-shaped block; 15. Liquid outlet; 16. Pressure regulating port; 17. Safety valve; 18. One-way valve;

[0036] 20. Cleaning department;

[0037] 21. Sealing cover; 22. Vacuum generator; 23. Diaphragm pump; 24. Return sleeve; 25. Cleaning hose; 26. Return hose; 27. Sealing ring;

[0038] 30. Liquid storage part;

[0039] 301. Reflux pipe; 302. Liquid outlet pipe; 303. Annular boss; 304. Guide rib; 31. Liquid storage tank; 32. Cover plate; 33. Drive motor; 34. Threaded rod; 35. Partition; 36. Cross arm; 37. Tension sensor; 38. Linkage rod; 39. Filter element. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0043] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0044] Please see the attached Figures 1 to 7 FIG. 1 is a first embodiment of the present invention, which provides a coating die cleaning device, comprising a lower die 10, an upper die 11 being mounted on one side of the upper end of the lower die 10, a solvent flow channel 12 and a plurality of liquid inlets 13 being provided in the interior of the upper die 11, and the solvent flow channel 12 and the plurality of liquid inlets 13 being interconnected, a plurality of T-shaped blocks 14 being mounted in the interior of the solvent flow channel 12, a liquid outlet 15 being provided at one end of the upper die 11, and the solvent flow channel 12 and the liquid outlet 15 being interconnected, and further comprising:

[0045] The cleaning section 20 includes a sealing cover 21, a vacuum generator 22, and a diaphragm pump 23. The sealing cover 21 is detachably assembled on one side of the upper die head 11. After the sealing cover 21 and the upper die head 11 are fitted together, a sealed cleaning chamber is formed inside the sealing cover 21, and the sealing cover 21 and the T-shaped block 14 are adapted. The vacuum generator 22 is fixed to the upper end of the sealing cover 21, and a plurality of reflux sleeves 24 are opened at the lower end of the sealing cover 21. The diaphragm pump 23 is arranged at one end outside the lower die head 10, and the output end of the diaphragm pump 23 and the liquid inlet 13 are connected by a cleaning hose 25.

[0046] The liquid storage portion 30 is provided between the sealing cover 21 and the diaphragm pump 23. The liquid storage portion 30 and the liquid outlet 15, the liquid storage portion 30 and the input end of the diaphragm pump 23, and the liquid storage portion 30 and the return sleeve 24 are all connected by a return hose 26. A circulation path is formed among the diaphragm pump 23, the cleaning hose 25, the liquid inlet 13, the solvent flow channel 12, the liquid outlet 15, the sealing cover 21, the return hose 26, and the liquid storage portion 30.

[0047] When the sealing cover 21 and the upper die head 11 are in contact with each other and compressed air is input into the input end of the vacuum generator 22 , the interior of the sealing cover 21 becomes a negative pressure space.

[0048] Here, an air pump module is used in conjunction with the device. The air pump module and the input end of the vacuum generator 22 and the air pump module and the diaphragm pump 23 are connected through air pipes. The air pump module can deliver compressed air to the inside of the vacuum generator 22.

[0049] In this embodiment, when it is necessary to clean the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14, the sealing cover 21 is attached to one side of the upper die head 11 so that the sealing cover 21 and the T-shaped block 14 correspond to each other, the air pump module is started, and compressed air is sent to the vacuum generator 22 through the air pump module, so that a negative pressure space is formed inside the sealing cover 21 and it is tightly attached to the surface of the upper die head 11, and the cleaning solvent is injected into the liquid storage part 30, and the diaphragm pump 23 is started. The cleaning solvent inside the liquid storage part 30 is extracted by the diaphragm pump 23, so that the cleaning solvent flows into the solvent flow channel 12 through the diaphragm pump 23, the cleaning hose 25 and the liquid inlet 13 in sequence, and the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14 are cleaned. The cleaned solvent flows through the liquid outlet 15 and The reflux sleeve 24 flows to the reflux hose 26, and flows back to the liquid storage part 30 through the reflux hose 26. The reflux cleaning solution is filtered by the liquid storage part 30 and flows to the diaphragm pump 23 again. In this process, the cleaning solvent can clean the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14. In addition, compressed air is delivered to the inside of the vacuum generator 22 through the air pump module, which can reduce the air pressure inside the sealing cover 21, and thus the waste chips remaining between the multiple T-shaped blocks 14 can be sucked out. In the process of cleaning the upper die head 11, there is no need to disassemble and assemble the upper die head 11, which improves the cleaning effect and cleaning efficiency. At the same time, the reflux cleaning solvent is filtered and recycled through the liquid storage part 30, which can improve resource utilization and reduce maintenance costs.

[0050] It should be noted that the inner surface of the T-shaped block 14 refers to the surface in contact with the solvent flow channel 12 .

[0051] Next, please refer to Figure 2 and Figure 5 As shown, a pressure regulating port 16 is provided at one end of the upper die head 11 away from the liquid outlet 15, and the pressure regulating port 16 and the solvent flow channel 12 are interconnected. A safety valve 17 is fixed inside the pressure regulating port 16, wherein, in the initial state, the safety valve 17 is in a closed state. When the pressure inside the cleaning chamber is greater than the set value of the safety valve 17, the safety valve 17 changes from a closed state to an open state to release the pressure inside the cleaning chamber. When the pressure inside the cleaning chamber is less than the set value of the safety valve 17, the safety valve 17 changes from an open state to a closed state.

[0052] Secondly, please also refer to Figures 4 to 7 A one-way valve 18 is fixed inside each of the multiple liquid inlets 13, and the cleaning hose 25 is connected to the liquid inlet 13 through the one-way valve 18.

[0053] Here, there is at least one one-way valve 18 connected to the cleaning hose 25 , and the liquid inlet 13 connected to the cleaning hose 25 is in a connected state, while the liquid inlet 13 not connected to the cleaning hose 25 is in a closed state.

[0054] In this embodiment, when cleaning the solvent flow channel 12 and the T-block 14, the cleaning hose 25 and several one-way valves 18 are connected according to the cleaning requirements, and the diaphragm pump 23 is started to transport the cleaning solvent into the solvent flow channel 12. The cleaning solvent flows along the solvent flow channel 12 to the liquid outlet 15 and the reflux sleeve 24 respectively, cleaning the inside of the solvent flow channel 12 and the surface of the T-block 14, and the other liquid inlets 13 not connected to the cleaning hose 25 are in a closed state to prevent the cleaning solvent from flowing out through the liquid inlets 13 that are in a disconnected state.

[0055] Next, please refer to Figure 4 A sealing ring 27 is fixed to one end of the sealing cover 21 close to the upper die head 11, and the sealing ring 27 is made of rubber.

[0056] In this embodiment, the provision of the sealing ring 27 can improve the sealing performance of the sealing cover 21, prevent the gas outside the sealing cover 21 from flowing into the sealing cavity, and also prevent the cleaning solvent inside the sealing cover 21 from flowing out.

[0057] Please refer again Figures 8 to 10 As shown, the liquid storage part 30 includes a liquid storage tank 31, a cover plate 32, a drive motor 33, a threaded rod 34, a partition 35, a cross arm 36, a plurality of tension sensors 37, a plurality of linkage rods 38 and a filter element 39. The liquid storage tank 31 is arranged at one end of the lower die head 10, the cover plate 32 is detachably fixed to the upper end of the liquid storage tank 31, the drive motor 33 is fixed to the upper end of the cover plate 32, the threaded rod 34 is fixed to the output end of the drive motor 33, the lower end of the threaded rod 34 extends to the interior of the liquid storage tank 31, and the threaded rod 34 and the cover plate 33 are connected. The partition 35 is slidably connected to the interior of the liquid storage tank 31 through a sealed bearing, and the partition 35 and the threaded rod 34 are rotatably connected through a sealed bearing. The cross arm 36 is threadedly connected to the outside of the threaded rod 34 and is located at the upper end of the partition 35. Multiple tension sensors 37 are respectively fixed to the lower ends of both ends of the cross arm 36. Multiple linkage rods 38 are respectively fixed to the lower ends of the multiple tension sensors 37. The linkage rods 38 and the partition 35 are slidably connected in the form of a clearance fit. The filter element 39 is fixed to the lower ends of the multiple linkage rods 38.

[0058] Here, a service terminal is also used in conjunction with the device. The service terminal and the threaded rod 34, as well as the service terminal and the tension sensor 37, are electrically connected via wires. The signal obtained by the tension sensor 37 can be transmitted to the service terminal, and the gravity threshold and the forward start time and reverse reset time of the threaded rod 34 can be set through the service terminal.

[0059] Furthermore, the threaded rod 34 is preferably a servo motor.

[0060] In this embodiment, the diaphragm pump 23 drives the cleaning solvent inside the liquid storage part 30 to clean the solvent flow channel 12 and the T-shaped block 14 through the circulation path, and then returns to the inside of the liquid storage tank 31 through the reflux hose 26. After the reflux cleaning solvent is filtered through the filter element 39, large particles of impurities are retained on the surface of the filter element 39. When the accumulated working time of the device is long, the drive motor 33 is started, and the drive motor 33 and the threaded rod 34 are fixedly connected, so that the drive motor 33 drives the threaded rod 34 to rotate, and the threaded rod 34 and the cross arm 36 are threadedly connected, so that the threaded rod 34 drives the cross arm 36 to move upward. Since the cross arm 36 and the tension sensor 37, the tension sensor 37 and the linkage rod 38, and the linkage rod 38 and the filter element 39 are all fixedly connected, the tension sensor 37, the linkage rod 38 and the filter element are driven by the cross arm 36. 39 moves synchronously. When the filter element 39 is separated from the page of the cleaning solvent, the filter element 39 and the impurities accumulated on its surface can be measured by the tension sensor 37. When the gravity of the filter element 39 and the impurities on its surface is greater than the gravity threshold, the service terminal can remind the staff to clean the impurities on the surface of the filter element 39. Finally, the drive motor 33 is operated in reverse to drive the filter element 39 to reset. When the staff cleans the impurities on the surface of the filter element 39, the cover 32 is removed from the upper end of the liquid storage tank 31, and then the filter element 39 is taken out to clean the impurities on the surface of the filter element 39. Through the above-mentioned scheme, the staff can clean the surface of the filter element 39 in time when too many impurities are accumulated on the surface of the filter element 39, thereby ensuring the filtering effect and filtering efficiency of the filter element 39.

[0061] Furthermore, in order to improve the accuracy of the data, after the filter element 39 is separated from the cleaning solvent liquid surface and drained, the gravity of the filter element 39 and the impurities on its surface are obtained through the tension sensor 37.

[0062] Please refer again Figures 8 to 10 A return pipe 301 is provided at the upper end of the outer side of the liquid storage tank 31 , and a liquid outlet pipe 302 is provided at the lower end of the outer side of the liquid storage tank 31 . When in working state, the filter element 39 is located between the return pipe 301 and the liquid outlet pipe 302 .

[0063] In this embodiment, the filter element 39 is disposed between the reflux pipe 301 and the liquid outlet pipe 302 , which can ensure that the filter element 39 can filter the refluxed cleaning solvent.

[0064] It should be noted that during the cleaning process of the interior of the solvent flow channel 12 and the surface of the T-shaped block 14, the drive motor 33 will not start. If the filter element 39 is separated from the cleaning solvent liquid surface and is located at the lower end of the reflux pipe 301, the reflux cleaning solvent in a flowing state will cause the tension sensor 37 to be unable to obtain accurate gravity data. If the filter element 39 is separated from the cleaning solvent liquid surface and is located at the upper end of the reflux pipe 301, the filter element 39 cannot filter the reflux cleaning solvent.

[0065] Please refer again Figures 10 and 11 An annular boss 303 is fixed inside the liquid storage tank 31, and the annular boss 303 is adapted to the filter element 39, and the material of the annular boss 303 is rubber.

[0066] Here, in the working state, the filter element 39 and the annular boss 303 are in close contact with each other.

[0067] In this embodiment, when the gravity of the filter element 39 and the impurities on its surface is measured by the tension sensor 37, the filter element 39 and the annular boss 303 are separated, and the filter element 39 and the liquid storage tank 31 are in a clearance fit state, thereby avoiding inaccurate data caused by contact between the inner wall of the liquid storage tank 31 and the filter element 39.

[0068] Please refer again Figure 9 and Figure 10 As shown, a guide rib 304 is fixed to the inner wall of the liquid storage tank 31 , the guide rib 304 is adapted to the partition 35 , and the partition 35 and the liquid storage tank 31 are slidably connected via the guide rib 304 .

[0069] In this embodiment, when the driving motor 33 drives the threaded rod 34 to rotate and the threaded rod 34 drives the cross arm 36 to move, the setting of the guide rib 304 can prevent the partition 35 from rotating synchronously with the threaded rod 34. At the same time, when disassembling and assembling the filter element 39, the guide rib 304 can also guide the partition 35.

[0070] The working principle of the present invention is:

[0071] When it is necessary to clean the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14, the sealing cover 21 is attached to one side of the upper die head 11 so that the sealing cover 21 and the T-shaped block 14 correspond to each other, the air pump module is started, and compressed air is sent to the vacuum generator 22 through the air pump module so that a negative pressure space is formed inside the sealing cover 21 and the sealing cover 21 is tightly attached to the surface of the upper die head 11. The cleaning solvent is injected into the liquid storage part 30, and the diaphragm pump 23 is started to extract the liquid from the storage part 30. The cleaning solvent in the liquid part 30 flows into the solvent flow channel 12 through the diaphragm pump 23, the cleaning hose 25 and the liquid inlet 13 in sequence, and cleans the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14. The cleaned solvent flows to the return hose 26 through the liquid outlet 15 and the return sleeve 24, and returns to the liquid storage part 30 through the return hose 26. The refluxed cleaning solution is filtered by the liquid storage part 30 and flows to the diaphragm pump 23 again. During this process, the cleaning solvent can clean the dirt inside the solvent flow channel 12 and the inner surface of the T-shaped block 14, and the compressed air is delivered to the vacuum generator 22 through the air pump module, which can reduce the air pressure inside the sealing cover 21, and thus can suck out the waste chips remaining between the multiple T-shaped blocks 14. The start time and reset time of the drive motor 33 and the gravity threshold are set through the service terminal, and the drive motor 33 is started. The drive motor 33 drives the cross arm 36, the tension sensor 37, the linkage rod 38 and the filter element 39 to move upward synchronously. When the filter element 39 is separated from the cleaning solvent liquid surface and the filter element 39 is drained, the gravity of the filter element 39 and the impurities on its surface are obtained through the tension sensor 37. When the gravity of the filter element 39 and the impurities on its surface is greater than the gravity threshold, the service terminal can remind the staff to clean the filter element 39, thereby ensuring the filtering effect and filtering efficiency of the filter element 39.

[0072] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A coating die cleaning device, characterized in that: The invention comprises a lower die head (10), an upper die head (11) is assembled on one side of the upper end of the lower die head (10), a solvent flow channel (12) and a plurality of liquid inlets (13) are provided inside the upper die head (11), and the solvent flow channel (12) and the plurality of liquid inlets (13) are interconnected, a plurality of T-shaped blocks (14) are assembled inside the solvent flow channel (12), a liquid outlet (15) is provided at one end of the upper die head (11), and the solvent flow channel (12) and the liquid outlet (15) are interconnected, and further comprises: A cleaning section (20), the cleaning section (20) comprising a sealing cover (21), a vacuum generator (22) and a diaphragm pump (23), the sealing cover (21) being detachably mounted on one side of the upper die head (11), the sealing cover (21) forming a sealed cleaning chamber inside the sealing cover (21) after the sealing cover (21) and the upper die head (11) are fitted together, the sealing cover (21) and the T-shaped block (14) being adapted to each other, the vacuum generator (22) being fixed to the upper end of the sealing cover (21), the lower end of the sealing cover (21) being provided with a plurality of reflux sleeves (24), the diaphragm pump (23) being arranged at one end outside the lower die head (10), the diaphragm pump (23) and the liquid inlet (13) being connected via a cleaning hose (25); A liquid storage portion (30), the liquid storage portion (30) being arranged between the sealing cover (21) and the diaphragm pump (23), the liquid storage portion (30) and the liquid outlet (15), the liquid storage portion (30) and the diaphragm pump (23), and the liquid storage portion (30) and the return sleeve (24) being connected via a return hose (26), and a circulation path is formed between the diaphragm pump (23), the cleaning hose (25), the liquid inlet (13), the solvent flow channel (12), the liquid outlet (15), the sealing cover (21), the return hose (26), and the liquid storage portion (30); After compressed air is input into the input end of the vacuum generator (22), the interior of the sealing cover (21) becomes a negative pressure space.

2. A coating die cleaning device according to claim 1, characterized in that: A pressure regulating port (16) is provided at one end of the upper die head (11) away from the liquid outlet (15), and the pressure regulating port (16) and the solvent flow channel (12) are interconnected. A safety valve (17) is fixed inside the pressure regulating port (16).

3. A coating die cleaning device according to claim 1, characterized in that: A one-way valve (18) is fixed inside each of the plurality of liquid inlets (13), and the cleaning hose (25) is connected to the liquid inlet (13) via the one-way valve (18).

4. A coating die cleaning device according to claim 1, characterized in that: A sealing ring (27) is fixed to one end of the sealing cover (21) close to the upper die head (11), and the material of the sealing ring (27) is rubber.

5. The coating die cleaning device according to claim 1, characterized in that: The liquid storage part (30) includes a liquid storage tank (31), a cover plate (32), a drive motor (33), a threaded rod (34), a partition (35), a cross arm (36), a plurality of tension sensors (37), a plurality of linkage rods (38) and a filter element (39), wherein the liquid storage tank (31) is arranged at one end of the lower die head (10), the cover plate (32) is detachably fixed to the upper end of the liquid storage tank (31), the drive motor (33) is fixed to the upper end of the cover plate (32), the threaded rod (34) is fixed to the output end of the drive motor (33), and the threaded rod (3 4) and the cover plate (32) are rotatably connected, the partition (35) is slidably connected to the inside of the liquid storage tank (31), and the partition (35) and the threaded rod (34) are rotatably connected, the cross arm (36) is threadedly connected to the outside of the threaded rod (34), a plurality of the tension sensors (37) are respectively fixed to the lower ends of both ends of the cross arm (36), a plurality of the linkage rods (38) are respectively fixed to the lower ends of a plurality of tension sensors (37), and the linkage rods (38) and the partition (35) are slidably connected, and the filter element (39) is fixed to the lower ends of the plurality of linkage rods (38).

6. A coating die cleaning device according to claim 5, characterized in that: A return pipe (301) is provided at the upper end of the outer side of the liquid storage tank (31), and a liquid outlet pipe (302) is provided at the lower end of the outer side of the liquid storage tank (31). In the working state, the filter element (39) is located between the return pipe (301) and the liquid outlet pipe (302).

7. A coating die cleaning device according to claim 5, characterized in that: An annular boss (303) is fixed inside the liquid storage tank (31), and the annular boss (303) is adapted to the filter element (39).

8. A coating die cleaning device according to claim 5, characterized in that: A guide rib (304) is fixed to the inner wall of the liquid storage tank (31), the guide rib (304) is adapted to the partition (35), and the partition (35) and the liquid storage tank (31) are slidably connected via the guide rib (304).

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