Degradation-promoting coating mixing device for printing process

Abstract

The utility model relates to the field of coating mixing, and provides a degradation-promoting coating mixing device for a printing process, which comprises a mixing box, a stirring shaft, a driving part and a conveying pump, the mixing box is provided with a feeding hole; the stirring shaft and the driving part are both mounted on the mixing box, and the driving part is used for driving the stirring shaft to rotate; the conveying pump is mounted on the mixing box and is used for feeding the mixed coating; one end of the stirring shaft extends into the inner cavity of the mixing box, and a plurality of stirring blades are uniformly arranged on the peripheral side of the stirring shaft. The application has the effect of improving the coating uniformity of the degradation-promoting coating on the isolating membrane.

Description

Technical Field

[0001] This application relates to the field of coating mixing, and more particularly to a device for mixing degradable coatings for printing processes. Background Technology

[0002] Currently, the ink printing industry commonly uses stacking to store finished products. However, due to factors such as incomplete ink drying or pressure, ink transfer contamination can easily occur between adjacent finished products. Therefore, to prevent ink contamination, the industry typically covers the outer layer of printed products with a release film, which is placed between adjacent printed products after stacking.

[0003] However, while these types of separators effectively prevent ink stripping and penetration, they are difficult to degrade, causing significant environmental pollution upon disposal. Current solutions involve coating the separator surface with a biodegradable coating. However, directly applying the coating to the separator surface results in low uniformity. Utility Model Content

[0004] To improve the uniformity of the coating of the biodegradable coating on the release liner, this application provides a biodegradable coating mixing device for printing processes.

[0005] The technical solution of the biodegradable coating mixing device for printing process provided in this application is as follows:

[0006] A device for mixing a biodegradable coating in a printing process includes a mixing tank, a stirring shaft, a drive unit, and a delivery pump. The mixing tank has a feeding port. The stirring shaft and the drive unit are both installed in the mixing tank, and the drive unit is used to drive the stirring shaft to rotate. The delivery pump is installed in the mixing tank and is used to feed the mixed coating. One end of the stirring shaft extends into the inner cavity of the mixing tank, and multiple stirring blades are evenly arranged on the periphery of the stirring shaft.

[0007] By adopting the above technical solution, the mixing device can effectively stir and mix the degradable coating used in the printing process before the coating is applied, making the coating more uniform. After mixing, the coating is fed by a delivery pump. Since the coating has been fully mixed before feeding, the uniformity of the degradable coating on the release film can be improved.

[0008] Optionally, the stirring blade has an air chamber inside, one end of which passes through the end face of the stirring blade away from the stirring shaft, and the other end is connected to an air blowing device; the stirring blade is provided with a one-way valve in the air chamber, and the one-way valve is used to prevent the coating from entering the air chamber.

[0009] By adopting the above technical solution, the air chamber inside the stirring blade can be used to allow external air blowing equipment to circulate air into the mixing chamber, which helps to improve the mixing effect of the degradation-promoting coating. At the same time, the airflow applies force to the inner wall of the mixing chamber to reduce the agglomeration of the coating on the inner wall of the mixing chamber and ensure the uniformity of the coating mixing. The one-way valve can use gas to block the coating from entering the air chamber, ensuring the normal ventilation function of the air chamber and the stable operation of the air blowing equipment.

[0010] Optionally, the stirring blade has a columnar structure.

[0011] By adopting the above technical solution, it is easy to create an air cavity in the stirring blade.

[0012] Optionally, the stirring blade is provided with a guide member, which is located in the air cavity and extends along the length direction of the stirring blade; the guide member has multiple air guiding cavities through it along its own length direction, and the multiple air guiding cavities are arranged at intervals around the central axis of the guide member.

[0013] By adopting the above technical solution, the airflow in the same air chamber is divided into multiple streams by the guide component, thereby increasing the turbulence effect.

[0014] Optionally, the air guide cavity is inclined.

[0015] By adopting the above technical solution, the range of airflow disturbance and the range of action on the inner wall of the mixing chamber are increased, thereby further improving the mixing effect.

[0016] Optionally, the mixing tank is provided with a cover for covering the feeding port.

[0017] By adopting the above technical solution, the feeding port is covered with a cover to prevent external debris from falling into the mixing box, ensuring the cleanliness of the coating and thus ensuring the uniformity of the coating on the isolation membrane.

[0018] Optionally, the cover is a metal sheet; one end of the cover is connected to the mixing box, and the other end is a free end.

[0019] By adopting the above technical solution, since the metal sheet can be bent at any position, the bending position of the metal sheet can be selected according to actual usage requirements, so that the size of the exposed part of the feeding port is different.

[0020] Optionally, a handle is provided at the free end of the cover, and the handle is located at the end of the cover away from the mixing tank.

[0021] By adopting the above technical solution and adding a handle, a position for workers to apply force is provided, making it easier for workers to move the free end of the cover relative to the mixing tank.

[0022] Optionally, the mixing chamber is slidably connected to a pressing member, the pressing member sliding in the direction of the length of the cover, and the pressing member is used to abut against the surface of the cover opposite to the mixing chamber.

[0023] By adopting the above technical solution, the cover is pressed down at the bend of the cover using a pressing component to prevent the cover from lifting up at the closed position.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting a stirring shaft in the mixing box and setting stirring blades on the stirring shaft, the paint is mixed and stirred before the paint is fed, thereby improving the coating uniformity of the paint on the release film;

[0026] 2. By creating an air chamber in the stirring blade, airflow is introduced into the air chamber during mixing. The airflow disturbs the coating, increasing the uniformity of the coating mixture, and blows the coating near the inner wall of the mixing box, reducing the risk of coating clumping on the inner wall of the mixing box later.

[0027] 3. By installing a cover on the mixing chamber, the risk of external debris entering the mixing chamber is reduced; the cover is made of metal sheet, which can be easily changed in shape to change the size of the exposed position of the feeding port, thus improving the flexibility of use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0029] Figure 2 This is a structural diagram used to illustrate the handle.

[0030] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0031] Figure 4 yes Figure 3 Enlarged diagram of part A.

[0032] Figure 5 This is a structural schematic diagram of Embodiment 3 of this application.

[0033] Figure 6 This is a schematic diagram illustrating the structure of the dovetail groove in Example 3.

[0034] Explanation of reference numerals in the attached drawings: 1. Mixing box; 11. Feeding port; 12. Cover; 13. Dovetail groove; 14. Handle; 2. Stirring shaft; 21. Stirring blade; 22. Air chamber; 23. Connecting chamber; 24. One-way valve; 3. Drive component; 4. Conveying pump; 5. Guide component; 51. Air guiding chamber; 6. Pressing component; 61. Pressing rod; 62. Sliding block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0036] This application discloses a device for mixing biodegradable coatings in a printing process.

[0037] Example 1

[0038] Reference Figure 1 The biodegradable coating mixing device for printing processes includes a mixing tank 1, a stirring shaft 2, a drive unit 3, and a delivery pump 4.

[0039] The mixing box 1 is a box with an opening at the top, and the opening of the mixing box 1 is the feeding port 11. The top of the mixing box 1 is provided with a cover 12, which is used to cover the feeding port 11.

[0040] In this embodiment, the cover 12 is made of metal sheet, with one end fixedly connected to the mixing tank 1 and the other end being a free end. The fixing methods between the cover 12 and the mixing tank 1 include, but are not limited to, welding and bonding. This design allows the cover 12 to be bent arbitrarily at its free position. When no material is being added, the free end of the cover 12 can be pressed down to cover the feeding port 11, reducing the possibility of external debris falling into the mixing tank 1. When adding material, the cover 12 can be lifted to expose an opening of a suitable size, depending on the amount of material being added and the operator's own operating habits. The overall structure is simple while satisfying the flexibility of the mixing device.

[0041] The stirring shaft 2 is located on one side of the mixing chamber 1 and extends into the interior of the mixing chamber 1. The drive unit 3 is a motor, which is installed on one side of the mixing chamber 1. The stirring shaft 2 is connected to the output shaft of the drive unit 3, and the drive unit 3 is used to drive the stirring shaft 2 to rotate. Multiple stirring blades 21 are uniformly fixed to the periphery of the stirring shaft 2.

[0042] The delivery pump 4 is installed on the top of the mixing tank 1. The delivery pump 4 is used to feed the mixed coating material, and deliver the coating material in the mixing tank 1 to the anilox roller, which then coats the coating material onto the release film.

[0043] Reference Figure 2 A handle 14 is provided on the surface of the cover 12 away from the mixing box 1 to facilitate the opening and closing of the cover 12.

[0044] The implementation principle of Example 1 is as follows: Before applying the coating to the anilox roller, open the cover 12 and put the coating into the mixing box 1 from the feeding port 11; then start the drive component 3, and use the drive component 3 to drive the stirring shaft 2 to rotate, so that the coating in the mixing box 1 is mixed evenly; then start the delivery pump 4, and use the delivery pump 4 to feed the mixed coating. During the feeding process, the drive component 3 is continuously kept in working state.

[0045] Example 2

[0046] Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that a connecting cavity 23 is provided inside the stirring shaft 2, and the connecting cavity 23 extends along the length direction of the stirring shaft 2.

[0047] An air chamber 22 is provided inside the stirring blade 21. One end of the air chamber 22 passes through the end face of the stirring blade 21 away from the stirring shaft 2, and the other end is connected to the connecting cavity 23. An air blowing device is connected to the outside of the connecting cavity 23.

[0048] The stirring blade 21 is equipped with a one-way valve 24 in the air chamber 22. The one-way valve 24 is used to prevent paint from entering the air chamber 22. This design...

[0049] Furthermore, the stirring blade 21 is equipped with a guide member 5, which is located in the air chamber 22 and extends along the length of the stirring blade 21. Multiple air chambers 51 are formed through the guide member 5 along its length, and these chambers are arranged at intervals around the central axis of the guide member 5. This allows the multiple air chambers 51 of the guide member 5 to divert the fluid in the air chamber 22, improving the turbulence effect and the impact on the inner wall of the mixing tank 1.

[0050] In this embodiment, the air guide cavity 51 is inclined. From one end near the stirring shaft 2 to the other end, the distance between the air guide cavity 51 and the central axis of the stirring blade 21 increases, so that the airflow is ejected radially from the air guide cavity 51, further improving the turbulence effect and thus improving the mixing effect of the coating.

[0051] Example 3

[0052] Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that the mixing box 1 is slidably connected with a pressing member 6, and the pressing member 6 slides along the length direction of the cover 12. The pressing member 6 is used to abut against the surface of the cover 12 away from the mixing box 1.

[0053] Since the cover 12 is made of metal, it can be bent at any free position. The pressing member 6 can be moved to the bending position to press the cover 12. The pressing member 6 can also be used to press the free end of the cover 12 when the cover 12 is closed to prevent the cover 12 from lifting.

[0054] Specifically, the pressing component 6 includes a pressing rod 61 and two sliding blocks 62. The two sliding blocks 62 are fixedly connected to both ends of the pressing rod 61, and the sliding blocks 62 are dovetail blocks. Dovetail grooves 13 are provided on the upper end surfaces of both side walls of the mixing box 1. The dovetail grooves 13 extend along the length of the mixing box 1 and are used for sliding and engaging the sliding blocks 62.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for mixing biodegradable coatings in a printing process, characterized in that: It includes a mixing tank (1), a stirring shaft (2), a drive unit (3), and a delivery pump (4); the mixing tank (1) has a feeding port (11); the stirring shaft (2) and the drive unit (3) are both installed in the mixing tank (1), and the drive unit (3) is used to drive the stirring shaft (2) to rotate; the delivery pump (4) is installed in the mixing tank (1), and the delivery pump (4) is used to feed the mixed coating; one end of the stirring shaft (2) extends into the inner cavity of the mixing tank (1), and multiple stirring blades (21) are evenly arranged on the periphery of the stirring shaft (2).

2. The apparatus for mixing degradable coatings for printing processes according to claim 1, characterized in that: An air chamber (22) is provided inside the stirring blade (21). One end of the air chamber (22) passes through the end face of the stirring blade (21) away from the stirring shaft (2), and the other end is connected to an air blowing device. A one-way valve (24) is provided in the air chamber (22) of the stirring blade (21). The one-way valve (24) is used to prevent the paint from entering the air chamber (22).

3. The apparatus for mixing degradable coatings for printing processes according to claim 2, characterized in that: The stirring blade (21) has a columnar structure.

4. The apparatus for mixing degradable coatings for printing processes according to claim 3, characterized in that: The stirring blade (21) is provided with a guide (5), which is located in the air chamber (22). The guide (5) extends along the length of the stirring blade (21). The guide (5) has multiple air chambers (51) through it along its own length. The multiple air chambers (51) are arranged at intervals around the central axis of the guide (5).

5. The apparatus for mixing degradable coatings for printing processes according to claim 4, characterized in that: The air guide cavity (51) is set at an angle.

6. The apparatus for mixing degradable coatings for printing processes according to claim 1, characterized in that: The mixing box (1) is provided with a cover (12) for covering the feeding port (11).

7. The apparatus for mixing degradable coatings for printing processes according to claim 6, characterized in that: The cover (12) is a metal sheet; one end of the cover (12) is connected to the mixing box (1), and the other end is a free end.

8. The apparatus for mixing degradable coatings for printing processes according to claim 7, characterized in that: The free end of the cover (12) is provided with a handle (14), which is located at the end of the cover (12) away from the mixing box (1).

9. The apparatus for mixing a biodegradable coating for a printing process according to claim 7 or 8, characterized in that: The mixing box (1) is slidably connected to a pressing member (6), the pressing member (6) slides along the length direction of the cover (12), and the pressing member (6) is used to abut against the surface of the cover (12) away from the mixing box (1).

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