Container inner wall coating process and device

Abstract

The invention provides a container inner wall coating process and device. The container inner wall coating process comprises the following steps that S1, a coating medium is added into a container needing to be coated; s2, inclining the axis of the container filled with the coating medium at a set angle, and rotating along the axis; the coating medium is attached to the inner wall of the container, and the redundant coating medium is discharged through a container opening. The method has the beneficial effects that compared with a traditional spraying process, uniform coating of the inner wall of the container is achieved by filling the container with a certain volume of coating medium, inclining the container and rotating the container, the problem of coating lap joint is avoided, the coating thickness is more uniform, and compared with complex logic when a spraying device is switched, the spraying efficiency is greatly improved. The technological operation process is simple, and the working efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of container coating, and in particular relates to a container inner wall coating process and device. Background Art

[0002] The container material is not limited to paper fiber bottles, but can also be plastic bottles, glass bottles and other material containers. The container itself is not limited to closed-end containers, but can also be open-end containers. The container shape is not limited to cylindrical, but can also be square, diamond and irregular. When the inner wall of the container needs to be coated with additional barrier materials or change the color, spraying is often used in the market. Therefore, the existing container inner wall coating device is mostly a jet spray device.

[0003] The existing container inner wall coating technology is to use two or more spray devices to spray the coating medium onto the container side wall. The two or more spray devices have different spray positions, so the spray action logic is also different. For example, one spray device sprays the container side wall, and one spray device sprays the container bottom. When spraying the same container, different spray devices need to be replaced to complete the spraying of the same coating. This coating technology has the following problems: first, the logical action is complicated when switching the spray device, and there will be coating overlap and uneven film thickness when switching the spray; second, the existing spray device is prone to clogging, and cleaning The spraying device takes a long time, resulting in low production efficiency; thirdly, the thickness of the film layer sprayed in a single time is relatively thin. Products with requirements for film thickness require multiple spraying to meet the requirements. Since drying is required after each spraying, the energy consumption in the whole process is large and the production efficiency is low; fourthly, drying is required after coating. The existing coating medium drying process generally uses a full-process high-temperature drying method, and high-temperature drying will cause the surface of the coating to dry and crust rapidly. At this time, the moisture in the inner layer of the coating has not evaporated. When the inner layer moisture evaporates into gas, the outer layer has already crusted and cannot be discharged, and bubbles will form inside the film layer. Summary of the invention

[0004] In view of this, the present invention aims to propose a container inner wall coating process and device to solve the problems of low product quality and low work efficiency existing in the traditional spraying process.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] The first aspect of the present invention provides a container inner wall coating process, comprising the following steps:

[0007] A container inner wall coating process, characterized in that it comprises the following steps:

[0008] S1. Add coating medium into the container to be coated;

[0009] S2, the axis of the container containing the coating medium is tilted at a set angle and rotated along the axis;

[0010] The coating medium adheres to the inner wall of the container, and the excess coating medium is discharged through the container opening.

[0011] Furthermore, the step S2 includes the following steps:

[0012] S21, the axis of the container containing the coating medium is tilted to a first angle and rotated along the axis;

[0013] S22, after step S21, the axis of the container containing the coating medium is tilted to a second angle and rotated along the axis, wherein the second angle is greater than the first angle;

[0014] The coating medium adheres to the inner wall of the container, and the excess coating medium is discharged through the container opening.

[0015] Furthermore, the step S2 further includes the following steps:

[0016] S23, after step S23, the axis of the container containing the coating medium is tilted to a third angle and rotated along the axis, wherein the third angle is greater than the second angle;

[0017] The coating medium adheres to the inner wall of the container, and the excess coating medium is discharged through the container opening.

[0018] Further, in the step S21, when the axis of the container containing the coating medium is tilted to the first angle, the coating medium is not discharged from the container;

[0019] In the step S22, when the axis of the container containing the coating medium is tilted to the second angle, the coating medium is not completely discharged from the container;

[0020] In the step S23, when the axis of the container containing the coating medium is tilted to the third angle, the coating medium is completely discharged from the container.

[0021] Furthermore, the first angle is less than 90°;

[0022] The first angle is 30°;

[0023] The second angle is less than 180°;

[0024] The second angle is 120°;

[0025] The third angle is 180°;

[0026] The first angle, the second angle and the third angle are angles between the axis of the container and a vertical line of the ground.

[0027] Furthermore, when the container is tilted to the first angle, the second angle, or the third angle, the coating medium discharged from the container is recovered into the coating medium recovery component.

[0028] Furthermore, the container inner wall coating process further comprises the following steps:

[0029] S3, drying the coated container;

[0030] Step S includes the following steps:

[0031] S31, drying the coated container at a first temperature;

[0032] S32, drying the container obtained in step S31 at a second temperature, wherein the second temperature is higher than the first temperature.

[0033] Furthermore, the step S3 further comprises the following steps:

[0034] S33, drying the container obtained in step S at a third temperature, wherein the third temperature is lower than the second temperature.

[0035] Further, the temperature range of the first temperature is 60°C-100°C;

[0036] The temperature range of the second temperature is 80°C-120°C;

[0037] The temperature range of the third temperature is 60°C-100°C;

[0038] The first temperature is 80°C;

[0039] The second temperature is 100° C.

[0040] The third temperature is 80°C.

[0041] Furthermore, the step S1 includes the following steps:

[0042] A1. Arrange multiple containers at a certain distance;

[0043] A2. Add coating medium into the container, but the coating medium does not fill up the container.

[0044] A second aspect of the present invention provides a container inner wall coating device, comprising:

[0045] a clamping assembly configured to clamp a container;

[0046] A rotation component configured to drive the container to rotate along its own axis;

[0047] A rotating assembly is configured to tilt the axis of the container.

[0048] Furthermore, the clamping assembly comprises:

[0049] Clamping plate;

[0050] A mounting plate, wherein a clamping position for clamping the container is formed between the clamping plate and the mounting plate;

[0051] The clamping plate is correspondingly provided with a driving assembly for driving the clamping plate to move relative to the mounting plate;

[0052] The driving assembly drives the clamping plate and / or the mounting plate to move, thereby reducing or expanding the space of the clamping position;

[0053] The driving assembly is a cylinder, the number of the cylinders is two, the shell of one of the cylinders is fixedly connected to the rotating plate, and the output end of one of the cylinders is fixedly connected to the clamping plate;

[0054] The rotating plate is installed in cooperation with the rotating assembly;

[0055] The shell of another cylinder is fixedly connected to the rotating plate, and the output end of another cylinder is fixedly connected to the mounting plate;

[0056] The clamping plate is provided with a first guide hole, the mounting plate is provided with a second guide hole, the rotating plate is provided with a first guide rod, and the first guide rod passes through the first guide hole and the second guide hole;

[0057] The guide hole 1 and the guide hole 2 are both fixedly provided with linear bearings corresponding to the guide rod 1, and the guide rod 1 is installed on the inner side of the linear bearings;

[0058] The clamping plate is provided with a clamping block corresponding to the container, and the clamping block is provided with a positioning groove corresponding to the container, and a clamping position for clamping the container is formed between the clamping block and the mounting plate;

[0059] The clamping block is fixedly provided with a second guide rod, the clamping plate is provided with a third guide hole corresponding to the guide, the second guide rod is installed inside the third guide hole, and a compression spring is provided between the clamping block and the clamping plate;

[0060] The compression spring is installed between the clamping plate and the clamping block;

[0061] A linear bearing is arranged in the guide hole three, and the guide rod two is installed on the inner side of the linear bearing.

[0062] Furthermore, the rotation component comprises:

[0063] An active roller, the active roller being rotatably connected to the mounting plate;

[0064] A driven roller, the driven roller is rotatably connected to the clamping plate, the number of the driven rollers is two, and the two driven rollers and the active roller clamp the container;

[0065] The active roller is provided with a driving component corresponding to the active roller for driving the active roller to rotate;

[0066] The driving assembly for driving the active roller to rotate is a self-rotating motor, the housing of the self-rotating motor is fixedly connected to the mounting plate, a driving pulley 1 is fixedly arranged at the output end of the self-rotating motor, a driven pulley 1 is fixedly arranged on the active roller, and the driving pulley 1 is installed in cooperation with the driven pulley 1 through a belt;

[0067] The driving pulley 1 and the driven pulley 1 are both synchronous pulley 1, and the belt is a synchronous belt;

[0068] There are multiple active rollers, and a first tensioning wheel is provided between the active belt pulleys of adjacent active rollers, and the first tensioning wheel is used to tighten the outer side wall of the belt;

[0069] A second tensioning wheel is correspondingly provided on both sides of the driving pulley 1, and the second tensioning wheel is used to tighten the outer side wall of the belt;

[0070] One of the second tensioning wheels is rotatably connected to the mounting plate, and the other second tensioning wheel is rotatably connected to the adjustment plate. The adjustment plate is correspondingly provided with an adjustment bolt, and the adjustment bolt is threadedly connected to the mounting block on the mounting plate, and the adjustment bolt presses the adjustment plate tightly.

[0071] Further, the rotating plate is installed in cooperation with the clamping assembly;

[0072] A lifting plate, the lifting plate is installed in cooperation with the lifting assembly;

[0073] The rotating plate is correspondingly provided with a driving assembly for driving the rotating plate to rotate, the driving assembly is a rotating motor, the housing of the rotating motor is fixedly connected to the lifting plate, and the output end of the rotating motor is fixedly connected to the rotating plate.

[0074] Furthermore, the container inner wall coating device also includes a lifting component, and the lifting component includes:

[0075] A lifting plate, the lifting plate is installed in cooperation with the rotating assembly, and a nut is fixed on the lifting plate;

[0076] A lead screw, the lead screw is installed in cooperation with a nut;

[0077] The lead screw is correspondingly provided with a driving assembly for driving the lead screw to rotate;

[0078] The driving component driving the lead screw to rotate is a lifting motor, the housing of the lifting motor is fixedly connected to the equipment bracket, a second driving pulley is fixedly arranged on the output shaft of the lifting motor, a second driven pulley is fixedly arranged on the lead screw, and the second driving pulley is connected to the second driven pulley through a belt;

[0079] The second driving pulley and the second driven pulley are both synchronous pulleys, and the belt is a synchronous belt;

[0080] The equipment bracket is fixedly provided with a guide rod three arranged along the moving direction of the lifting plate, and the lifting plate is fixedly provided with a guide hole four corresponding to the guide rod three, and the guide rod three is installed on the inner side of the guide hole four;

[0081] A linear bearing is fixedly arranged on the inner side of the guide hole four, and the guide rod three is installed on the inner side of the bearing in the guide hole four.

[0082] Furthermore, the container inner wall coating device further comprises a coating medium recovery component, and the coating medium recovery component is used to collect the coating medium discharged from the container;

[0083] The coating medium recovery component is a funnel, one end of the funnel with a large opening corresponds to the clamping position, and one end of the funnel with a small opening is connected to the storage tank of the filling device.

[0084] A third aspect of the present invention provides a container inner wall coating system, comprising:

[0085] A container loading device configured to arrange a plurality of containers in an orderly manner;

[0086] a filling device configured to add a coating medium into the container, the coating medium not filling up the container;

[0087] A container inner wall coating device, which is the container inner wall coating device described in the second aspect;

[0088] The coating process is completed by the container inner wall coating device, and the excess coating medium in the container is discharged;

[0089] A drying device is configured to dry the coated container.

[0090] A fourth aspect of the present invention provides an electronic device, comprising a processor and a memory that is communicatively connected to the processor and is used to store instructions executable by the processor, wherein the processor is used to execute the container inner wall coating process described in the first aspect above.

[0091] Compared with the prior art, the container inner wall coating process and device described in the present invention have the following advantages:

[0092] Beneficial effects:

[0093] (1) Compared with the traditional spraying process, the container inner wall coating process described in the present invention achieves uniform coating of the container inner wall by filling a certain volume of coating medium in the container, tilting the container and rotating the container, without causing the problem of coating overlap, and the coating thickness is more uniform. Compared with the complex logic when switching the spray device, the process operation process is simple, and the work efficiency is improved. The coating process does not require the use of a nozzle, so there is no problem of nozzle clogging, and there is no time-consuming cleaning.

[0094] (2) The container inner wall coating process described in the present invention can improve the product quality of the coating during the drying process by setting up drying zones.

[0095] For example, a three-stage zoning method is used, where low-temperature drying is first performed at the first temperature to prevent the coating surface from drying out quickly. The low-temperature drying process is conducive to the evaporation of moisture inside the coating. High-temperature drying is then performed to shorten the drying time. The final low-temperature drying can prevent the coating from suddenly entering room temperature under high-temperature conditions, which can cause cracking of the coating due to the large temperature difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0097] Figure 1 It is a schematic diagram of the three-dimensional structure of the device according to an embodiment of the present invention;

[0098] Figure 2 It is a schematic diagram of a partial cross-section of a three-dimensional structure of a device according to an embodiment of the present invention;

[0099] Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0100] Figure 4 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0101] Figure 5 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at point C in the middle.

[0102] Description of reference numerals:

[0103] 1. Equipment support; 2. Transmission belt; 3. Container; 4. Clamping assembly; 5. Rotating assembly; 6. Rotation assembly; 7. Price increase assembly; 8. Coating medium recovery assembly; 301. Active roller; 302. Driven roller; 303. Driven pulley one; 304. First tensioning wheel; 305. Second tensioning wheel; 307. Adjusting plate; 308. Mounting block; 309. Adjusting bolt; 401. Clamping plate; 402. Mounting plate; 403. Clamping block; 404. Cylinder; 406. Guide rod one; 407. Compression spring; 408. Guide rod two; 501. Rotating plate; 701. Lifting motor; 702. Active pulley two; 703. Driven pulley two; 704. Lead screw; 705. Lifting plate; 706. Guide rod three. DETAILED DESCRIPTION

[0104] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0105] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0106] Embodiment 1:

[0107] A container inner wall coating process comprises the following steps:

[0108] S1, adding coating medium into the container 3 to be coated;

[0109] S2, the axis of the container 3 containing the coating medium is tilted at a set angle and rotated along the axis;

[0110] In some embodiments, the process of tilting the container's axis is performed synchronously with the process of rotating along the axis. In other embodiments, the process of tilting the container's axis is performed first and then rotating along the axis. In other embodiments, the process of rotating the container along the axis is performed first and then tilting the axis.

[0111] In some embodiments, in step S2, the axis of the container 3 containing the coating medium is tilted at a set angle and rotated along the axis. The set angle is one angle. In other embodiments, the set angle is multiple angles, and the axis of the container 3 is tilted to different angles in sequence.

[0112] Step S2 includes the following steps:

[0113] S21, the axis of the container 3 containing the coating medium is tilted to a first angle and rotated along the axis;

[0114] S22, after step S21, the axis of the container 3 containing the coating medium is tilted to a second angle and rotated along the axis, wherein the second angle is greater than the first angle;

[0115] The step S2 further comprises the following steps:

[0116] S23, after step S23, the axis of the container 3 containing the coating medium is tilted to a third angle and rotated along the axis, and the third angle is greater than the second angle;

[0117] The coating medium adheres to the inner wall of the container 3 , and the excess coating medium is discharged through the opening of the container 3 .

[0118] In some embodiments, in step S21, when the container 3 containing the coating medium is tilted to the first angle, the coating medium is not discharged from the container 3;

[0119] In some other embodiments, in step S21, when the container 3 containing the coating medium is tilted to a first angle, the coating medium is partially discharged from the container 3;

[0120] The first angle is less than 90°. In some embodiments, the first angle is 30°. In other embodiments, the first angle may be 10°, 20°, 40°, 50°, 60°, 70°, or 80°. When the first angle is less than 90°, the coating medium in the container 3 will not be completely discharged. When the first angle is greater than 90°, there is a possibility that the coating medium in the container 3 will be completely discharged, which affects the coating effect when rotating at the second angle.

[0121] In some embodiments, in step S21, when the container 3 containing the coating medium is tilted to the second angle, the coating medium is not completely discharged from the container 3;

[0122] In other embodiments, in step S22, when the container 3 containing the coating medium is tilted to the second angle, the coating medium is not discharged from the container 3;

[0123] In some other embodiments, in step S22, when the container 3 containing the coating medium is tilted to the second angle, the coating medium is completely discharged from the container 3;

[0124] The second angle is less than 180°. In some embodiments, the second angle is 120°. In other embodiments, the second angle may be 20°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, or 130°.

[0125] When the second angle is less than 180°, the coating medium in the container 3 will not be completely discharged. When the second angle is equal to 180°, the coating medium in the container 3 may be completely discharged, which affects the coating effect when rotating at the third angle.

[0126] In step S23, when the container 3 containing the coating medium is tilted to a third angle, the coating medium is completely discharged from the container 3; in some embodiments, the third angle is 180°, and in other embodiments, the third angle may be 170° or 190°. When the third angle is too large or too small, the coating medium may not be completely discharged.

[0127] When the container 3 is tilted to the first angle, the second angle, or the third angle, the coating medium discharged from the container 3 is recovered into the coating medium recovery component 8 .

[0128] The container 3 is tilted to a first angle in order to coat the portion that is not stained with the paint after being filled with the medium;

[0129] The container 3 is tilted to a second angle in order to coat the opening of the container, at which point the coating is slowly being discharged;

[0130] The container 3 is tilted to a first angle and a second angle and the container 3 is rotated so that the coating material is evenly applied to the container 3;

[0131] The container 3 is tilted to the third angle in order to pour out all the coating medium, while the rotation can avoid the problem of dripping after the coating is poured out.

[0132] In some embodiments, the container 3 is a bottle-shaped structure. In other embodiments, the container 3 may be a barrel-shaped structure, an irregular-shaped structure, or the like, and may have an inner cavity and an opening connected to the inner cavity.

[0133] Compared with the traditional spraying process, by filling a certain volume of coating medium in the container 3, tilting the container 3 and rotating the container 3, uniform coating of the inner wall of the container 3 is achieved, and the problem of coating overlap will not occur. The coating thickness is more uniform. Compared with the complex logic when switching the spray device, the process operation process is simple, which improves work efficiency.

[0134] In addition, if the method of directly filling the container 3 and then pouring out the coating medium is adopted, the following problems will occur: first, the container 3 filled with the coating medium is prone to overflow and contaminate the outer wall of the container 3 during the transportation and filling processes; second, the relative movement between the coating medium and the inner wall of the container 3 is less, and the presence of bubbles on the inner wall of the container 3 will cause the problem of uneven coating.

[0135] The coating medium is eliminated by the relative movement between the coating medium and the inner wall of the container 3 at different tilt angles, thereby eliminating bubbles on the inner wall of the container 3. This not only ensures that the opening of the container 3 is coated evenly multiple times, but also makes the flow of the coating medium in the tilted state more controllable, which is convenient for the recovery of the coating medium.

[0136] The inner wall coating process of the container 3 also includes the following steps:

[0137] S3, drying the coated container 3; step S3 comprises the following steps:

[0138] S31, drying the coated container 3 at a first temperature;

[0139] S32, drying the container 3 obtained in step S31 at a second temperature, wherein the second temperature is higher than the first temperature;

[0140] S33, drying the container 3 obtained in step S32 at a third temperature, wherein the third temperature is lower than the second temperature.

[0141] The following steps are involved:

[0142] The temperature range of the first temperature is 60°C-100°C. In some embodiments, the first temperature is 80°C. In other embodiments, the first temperature is 90°C. In other embodiments, the first temperature is 70°C. When the first temperature is less than 60°C, there is a problem of slow drying process. When the first temperature is greater than 100°C, it is easy to cause cracking of the coating.

[0143] The second temperature has a temperature range of 80°C-120°C. In some embodiments, the second temperature is 100°C. In other embodiments, the second temperature is 110°C. In other embodiments, the second temperature is 80°C.

[0144] When the second temperature is less than 80°C, there is a problem of too slow drying process. When the second temperature is greater than 120°C, it is easy to cause a sudden drop in temperature and cause cracking of the coating.

[0145] The third temperature has a temperature range of 60°C-100°C. In some embodiments, the third temperature is 80°C. In other embodiments, the third temperature is 90°C. In other embodiments, the third temperature is 70°C.

[0146] When the third temperature is less than 60°C, there is a problem that the drying process is too slow. When the third temperature is greater than 100°C, it is easy to cause a sudden drop in temperature and cause cracking of the coating.

[0147] In other embodiments, the drying temperature is two, in which case the second temperature is lower than the first temperature, and in other embodiments, the drying temperature is four or more, in which case the second temperature is lower than the first temperature, the third temperature is higher than the second temperature, and the fourth temperature is lower than the third temperature;

[0148] By setting up drying zones, low-temperature drying is performed at the first temperature to prevent the coating surface from drying out quickly. The slow drying process is conducive to the evaporation of moisture on the inside of the coating. During the evaporation of moisture, breathable micropores will be left on the coating. High-temperature drying is then performed to shorten the drying time. The final low-temperature drying can prevent the coating from cracking due to a sudden drop in temperature.

[0149] The steps before step S1 include:

[0150] A1. Arrange multiple containers 3 into a row of containers 3 with the same spacing between adjacent containers 3. In some embodiments, the spacing between adjacent containers 3 in the row of containers 3 is the same, and in other embodiments, the spacing between adjacent containers 3 is different, which is set according to actual production needs; A2. Add coating medium into the container 3. The coating medium does not fill up the container 3, and the filling capacity is 30%-60% of the total capacity of the container 3.

[0151] A container inner wall coating device, comprising:

[0152] A clamping assembly 4 configured to clamp the container 3;

[0153] A rotation assembly 6, which is configured to drive the container 3 to rotate along an axis;

[0154] The rotating assembly 5 is configured to tilt the axis of the container 3 .

[0155] The clamping assembly 4 comprises:

[0156] Clamping plate 401;

[0157] The mounting plate 402, a clamping position for clamping the container 3 is formed between the clamping plate 401 and the mounting plate 402;

[0158] The clamping plate 401 is correspondingly provided with a driving component for driving the clamping plate 401 to move relative to the mounting plate 402 .

[0159] The driving assembly drives the clamping plate 401 and / or the mounting plate 402 to move, thereby reducing or expanding the space of the clamping position;

[0160] The driving assembly is a cylinder 404, the number of the cylinders 404 is four, and every two cylinders 404 form a group, wherein the shell of one group of cylinders 404 is fixedly connected to the rotating plate, and the output end of one group of cylinders 404 is fixedly connected to the clamping plate 401;

[0161] The rotating plate is installed in coordination with the rotating assembly 5;

[0162] The shells of another group of cylinders 404 are fixedly connected to the rotating plate, and the output ends of another group of cylinders 404 are fixedly connected to the mounting plate 402 .

[0163] A guide hole 1 is formed on the clamping plate 401, a guide hole 2 is formed on the mounting plate 402, and a guide rod 1 406 is fixedly arranged on the rotating plate, and the guide rod 1 406 passes through the guide hole 1 and the guide hole 2. Linear bearings corresponding to the guide rod 1 406 are fixedly arranged in the guide hole 1 and the guide hole 2, and the guide rod 1 406 is installed on the inner side of the linear bearings. The guide rod 1 406 guides the movement process of the clamping plate 401 and the mounting plate 402, making the movement process more stable.

[0164] The holding plate is provided with a clamping block 403 corresponding to the container 3, and a positioning groove corresponding to the container 3 is opened on the clamping block 403, and a clamping position for clamping the container 3 is formed between the clamping block 403 and the mounting plate 402;

[0165] A second guide rod 408 is fixedly provided on the clamping block 403, and a third guide hole corresponding to the guide is opened on the clamping plate 401. The second guide rod 408 is installed on the inner side of the third guide hole. A compression spring 407 is provided between the clamping block 403 and the clamping plate 401; the compression spring 407 is installed between the clamping plate 401 and the clamping block 403; a linear bearing is provided in the third guide hole, and the second guide rod 408 is installed on the inner side of the linear bearing.

[0166] The self-rotating assembly 6 comprises:

[0167] An active roller 301, the active roller 301 is rotatably connected to the mounting plate 402; a driven roller 302, the driven roller 302 is rotatably connected to the clamping plate 401, the number of the driven rollers 302 is two, and the two driven rollers 302 and the active roller 301 clamp the container 3;

[0168] The driving roller 301 is provided with a driving component for driving the driving roller 301 to rotate. The driving component for driving the driving roller 301 to rotate is a self-rotating motor, the housing of the self-rotating motor is fixedly connected to the mounting plate 402, a driving pulley 1 is fixedly provided at the output end of the self-rotating motor, a driven pulley 1 303 is fixedly provided on the driving roller 301, and the driving pulley 1 is installed in cooperation with the driven pulley 1 303 through a belt;

[0169] The driving pulley 1 and the driven pulley 303 are both synchronous pulleys 1, and the belt is a synchronous belt, which ensures the synchronization of rotation.

[0170] There are multiple active rollers 301 , and a first tensioning wheel 304 is provided between the active belt pulleys of adjacent active rollers 301 . The first tensioning wheel 304 is used to tighten the outer wall of the belt.

[0171] A second tensioning wheel 305 is provided on both sides of the driving pulley 1, and the second tensioning wheel 305 is used to tighten the outer wall of the belt;

[0172] One of the second tensioning wheels 305 is rotatably connected to the mounting plate 402 , and the other second tensioning wheel 305 is rotatably connected to the adjustment plate 307 . The adjustment plate 307 is correspondingly provided with an adjustment bolt 309 , which is threadedly connected to the mounting block 308 on the mounting plate 402 , and the adjustment bolt 309 presses the adjustment plate 307 tightly.

[0173] The tension of the belt of the self-rotating component 6 can be adjusted by tightening or loosening the adjusting screw to prevent the belt from loosening after long-term use and affecting the transmission effect.

[0174] The output shaft of the cylinder 404 is extended, the clamping block 403 and the mounting plate 402 move toward each other, the two driven rollers 302 and the active roller 301 clamp the container 3, and at this time the compression spring 407 is compressed, and the positioning groove positions the container 3 to prevent the container 3 from escaping from the clamping position during the rotation process.

[0175] The rotating assembly includes:

[0176] The rotating plate is installed in cooperation with the clamping assembly 4; the lifting plate 705, the lifting plate 705 is installed in cooperation with the lifting assembly; the rotating plate is correspondingly provided with a driving assembly for driving the rotating plate to rotate, the driving assembly is a rotating motor, the housing of the rotating motor is fixedly connected to the lifting plate 705, and the output end of the rotating motor is fixedly connected to the rotating plate.

[0177] The coating device for the inner wall of the container 3 also includes a lifting component, which includes: a lifting plate 705, the lifting plate 705 is installed in cooperation with the rotating component 5, and a nut is fixed on the lifting plate 705; a lead screw 704, the lead screw 704 is installed in cooperation with the nut; the lead screw 704 is correspondingly provided with a driving component for driving the lead screw 704 to rotate; the driving component for driving the lead screw 704 to rotate is a lifting motor 701, the housing of the lifting motor 701 is fixedly connected to the equipment bracket 1, a driving pulley 702 is fixed on the output shaft of the lifting motor 701, a driven pulley 703 is fixed on the lead screw 704, and the driving pulley 702 is connected to the driven pulley 703 through a belt;

[0178] The driving pulley 2 702 and the driven pulley 2 703 are both synchronous pulleys 2, and the belts are synchronous belts, which ensure the synchronization of the lifting action.

[0179] The equipment support 1 is fixed with a guide rod 3 706 arranged along the moving direction of the lifting plate 705, and the lifting plate 705 is fixed with a guide hole 4 corresponding to the guide rod 3 706, and the guide rod 3 706 is installed on the inner side of the guide hole 4; the inner side of the guide hole 4 is fixed with a linear bearing, and the guide rod 3 706 is installed on the inner side of the bearing in the guide hole 4. The guide rod 3 706 guides the moving process of the lifting plate 705, making the moving process of the moving plate more stable.

[0180] The coating device for the inner wall of container 3 also includes a coating medium recovery component 8, which is used to collect the coating medium discharged from container 3; the coating medium recovery component 8 is a funnel, one end of the funnel with a large opening corresponds to the clamping position, and the other end of the funnel with a small opening is connected to the storage tank of the filling device.

[0181] A container 3 inner wall coating system, comprising:

[0182] A container 3 loading device, which is configured to arrange multiple containers 3 into a row of containers 3 with the same spacing between adjacent containers 3; a filling device, which is configured to add a coating medium into the container 3, and the coating medium does not fill the container 3 completely; a container 3 inner wall coating device, which is one of the container 3 inner wall coating devices mentioned above;

[0183] The drying device is configured to dry the coated container 3 .

[0184] The automated assembly line design of the container 3 inner wall coating system implements the coating process with only one set of structures, which reduces the footprint of the equipment and improves the working efficiency of the coating operation.

[0185] The feeding device of the container 3 adopts but is not limited to the existing bottle unscrambler, the filling device adopts but is not limited to the existing filling equipment, and the drying device adopts but is not limited to the existing continuous dryer. The bottle unscrambler, the filling equipment, and the continuous dryer are all existing technical specific structures and their connection forms are not repeated here.

[0186] Working process:

[0187] The container 3 loading device arranges the plurality of containers 3 into a row of containers 3 with the same spacing between adjacent containers 3, and transports the containers 3 to the working position of the filling device via a conveyor belt.

[0188] The filling device adds the coating medium into the container 3. The coating medium does not fill up the container 3, and is transported to the working position of the coating device on the inner wall of the container 3 by the conveyor belt.

[0189] The working process of the filling device is as follows:

[0190] The lifting motor 701 drives the lifting plate 705, the clamping assembly 4, the rotation assembly 6, and the rotating assembly 5 to move downward. When the container 3 enters the clamping position, the output shaft of the cylinder 404 extends, and the two driven rollers 302 and the active roller 301 clamp the container 3. The rotation motor drives the container 3 to rotate. In some embodiments, after the axis of the container 3 is tilted to the first angle, the rotation motor drives the container 3 to rotate. In other embodiments, during the process of the axis of the container 3 tilting to the first angle, the rotation motor drives the container 3 to rotate. After completing the specified number of rotations or the specified rotation time, the container 3 enters the subsequent steps.

[0191] The rotating motor continues to drive the container 3 to rotate. In some embodiments, after the axis of the container 3 is tilted to the second angle, the rotating motor drives the container 3 to rotate. In other embodiments, during the process of the axis of the container 3 tilting to the second angle, the rotating motor drives the container 3 to rotate. After the container 3 rotates a specified number of times or for a specified time, the subsequent steps are entered.

[0192] The rotating motor continues to drive the container 3 to rotate. In some embodiments, after the axis of the container 3 is tilted to the third angle, the rotating motor drives the container 3 to rotate. In other embodiments, during the process of the axis of the container 3 tilting to the third angle, the rotating motor drives the container 3 to rotate. After the container 3 rotates a specified number of times or for a specified time, the subsequent steps are entered.

[0193] All the coating medium in the container 3 flows back to the storage tank of the filling device through the coating medium recovery component 8, and then the rotating motor drives the container 3 to rotate to a vertical state, and then the lifting component drives the container 3 to move downward. When the lower end surface of the container 3 contacts the conveyor belt, the clamping plate 401 and the mounting plate 402 move in the opposite direction to release the container 3, and transport it to the drying device through the conveyor belt for drying.

[0194] Embodiment 2:

[0195] An electronic device includes a processor and a memory connected to the processor for storing instructions executable by the processor, wherein the processor is used to execute the container inner wall coating process of the above-mentioned embodiment 1.

[0196] Those of ordinary skill in the art will appreciate that the units and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0197] In the several embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of the units described above is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The above-mentioned units may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0198] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0199] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A container inner wall coating process, characterized in that: The following steps are involved: S1, adding a coating medium into a container (3) to be coated; S2, the axis of the container (3) containing the coating medium is tilted at a set angle and rotated along the axis; The coating medium adheres to the inner wall of the container (3), and excess coating medium is discharged through the opening of the container (3).

2. A container inner wall coating process according to claim 1, characterized in that: The step S2 comprises the following steps: S21, the axis of the container (3) containing the coating medium is tilted to a first angle and rotated along the axis; S22. After step S21, the axis of the container (3) containing the coating medium is tilted to a second angle and rotated along the axis, wherein the second angle is greater than the first angle.

3. A container inner wall coating process according to claim 2, characterized in that: The step S2 further comprises the following steps: S23. After step S22, the axis of the container (3) containing the coating medium is tilted to a third angle and rotated along the axis, wherein the third angle is greater than the second angle.

4. A container inner wall coating process according to claim 3, characterized in that: In the step S21, when the axis of the container (3) containing the coating medium is tilted to a first angle, the coating medium is not discharged from the container (3); In the step S22, when the axis of the container (3) containing the coating medium is tilted to the second angle, the coating medium is not completely discharged from the container (3); In the step S23, when the axis of the container (3) containing the coating medium is tilted to a third angle, the coating medium is completely discharged from the container (3).

5. A container inner wall coating process according to claim 4, characterized in that: The first angle is less than 90°; The first angle is 60°; The second angle is less than 180°; The second angle is 120°; The third angle is 180°; The first angle, the second angle and the third angle are the angles between the axis of the container (3) and a vertical line on the ground.

6. A container inner wall coating process according to claim 3, characterized in that: When the container (3) is tilted to the first angle, the second angle, or the third angle, the coating medium discharged from the container (3) is recovered into the coating medium recovery component (8).

7. A container inner wall coating process according to claim 1, characterized in that: The container inner wall coating process also includes the following steps: S3, drying the coated container (3); Step S3 includes the following steps: S31, drying the coated container (3) at a first temperature; S32, drying the container (3) obtained in step S31 at a second temperature, wherein the second temperature is higher than the first temperature.

8. A container inner wall coating process according to claim 7, characterized in that: Step S3 also includes the following steps: S33, drying the container (3) obtained in step S32 at a third temperature, wherein the third temperature is lower than the second temperature.

9. A container inner wall coating process according to claim 8, characterized in that: The temperature range of the first temperature is 60°C-100°C; The temperature range of the second temperature is 80°C-120°C; The temperature range of the third temperature is 60°C-100°C; The first temperature is 80°C; The second temperature is 100° C. The third temperature is 80°C.

10. A container inner wall coating process according to claim 1, characterized in that: The step S1 includes the following steps: A1. Arrange multiple containers (3) at a certain distance; A2. Add coating medium into the container (3), but the coating medium does not fill up the container (3).

11. A container inner wall coating device, characterized in that: include: a clamping assembly (4) configured to clamp the container (3); A self-rotating assembly (6), which is configured to drive the container (3) to rotate along its own axis; A rotating assembly (5) is configured to tilt the axis of the container (3).

12. A container inner wall coating device according to claim 11, characterized in that: The clamping assembly (4) comprises: Clamping plate (401); A mounting plate (402), wherein a clamping position for clamping the container (3) is formed between the clamping plate (401) and the mounting plate (402); The clamping plate (401) is provided with a driving component for driving the clamping plate (401) to move relative to the mounting plate (402); The driving assembly drives the clamping plate (401) and / or the mounting plate (402) to move, thereby reducing or expanding the space of the clamping position; The driving assembly is a cylinder (404), the number of the cylinders (404) is two, the shell of one of the cylinders (404) is fixedly connected to the rotating plate, and the output end of one of the cylinders (404) is fixedly connected to the clamping plate (401); The rotating plate is installed in coordination with the rotating assembly (5); The shell of another cylinder (404) is fixedly connected to the rotating plate, and the output end of another cylinder (404) is fixedly connected to the mounting plate (402); The clamping plate (401) is provided with a guide hole 1, the mounting plate (402) is provided with a guide hole 2, and the rotating plate is fixedly provided with a guide rod 1 (406), the guide rod 1 (406) passing through the guide hole 1 and the guide hole 2; The guide hole 1 and the guide hole 2 are both fixedly provided with linear bearings corresponding to the guide rod 1 (406), and the guide rod 1 (406) is installed on the inner side of the linear bearings; The clamping plate (401) is provided with a clamping block (403) corresponding to the container (3). The clamping block (403) is provided with a positioning groove corresponding to the container (3). A clamping position for clamping the container (3) is formed between the clamping block (403) and the mounting plate (402); The clamping block (403) is fixedly provided with a second guide rod (408), the clamping plate (401) is provided with a third guide hole corresponding to the guide, the second guide rod (408) is installed on the inner side of the third guide hole, and a compression spring (407) is provided between the clamping block (403) and the clamping plate (401); The compression spring (407) is installed between the clamping plate (401) and the clamping block (403); A linear bearing is arranged in the guide hole three, and the guide rod two (408) is installed on the inner side of the linear bearing.

13. A container inner wall coating device according to claim 11, characterized in that: The self-rotating assembly (6) comprises: An active roller (301), wherein the active roller (301) is rotatably connected to a mounting plate (402); A driven roller (302), wherein the driven roller (302) is rotatably connected to the clamping plate (401), and there are two driven rollers (302), and the two driven rollers (302) and the active roller (301) clamp the container (3); The active roller (301) is provided with a driving component corresponding to the active roller (301) for driving the active roller (301) to rotate; The driving component driving the active roller (301) to rotate is a self-rotating motor, the housing of the self-rotating motor is fixedly connected to the mounting plate (402), a driving pulley 1 is fixedly provided at the output end of the self-rotating motor, a driven pulley 1 (303) is fixedly provided on the active roller (301), and the driving pulley 1 is installed in cooperation with the driven pulley 1 (303) via a belt; The driving pulley 1 and the driven pulley 1 (303) are both synchronous pulleys 1, and the belt is a synchronous belt; There are multiple active rollers (301), and a first tensioning wheel (304) is provided between the active belt pulleys of adjacent active rollers (301), wherein the first tensioning wheel (304) is used to tighten the outer wall of the belt; Second tensioning wheels (305) are correspondingly provided on both sides of the driving pulley 1, and the second tensioning wheels (305) are used to tighten the outer side wall of the belt; One of the second tensioning wheels (305) is rotatably connected to the mounting plate (402), and the other second tensioning wheel (305) is rotatably connected to the adjustment plate (307). The adjustment plate (307) is correspondingly provided with an adjustment bolt (309). The adjustment bolt (309) is threadedly connected to the mounting block (308) on the mounting plate (402), and the adjustment bolt (309) presses against the adjustment plate (307).

14. A container inner wall coating device according to claim 11, characterized in that: The rotating assembly comprises: A rotating plate, the rotating plate being mounted in cooperation with the clamping assembly (4); A lifting plate (705), wherein the lifting plate (705) is installed in cooperation with the lifting assembly; The rotating plate is provided with a driving assembly for driving the rotating plate to rotate. The driving assembly is a rotating motor. The housing of the rotating motor is fixedly connected to the lifting plate (705). The output end of the rotating motor is fixedly connected to the rotating plate.

15. The container inner wall coating device according to claim 11, characterized in that: The container inner wall coating device further includes a lifting assembly, and the lifting assembly includes: A lifting plate (705), the lifting plate (705) is installed in cooperation with the rotating assembly (5), and a nut is fixed on the lifting plate (705); A lead screw (704), wherein the lead screw (704) is installed in cooperation with a nut; The lead screw (704) is provided with a driving assembly corresponding to the lead screw (704) for driving the lead screw (704) to rotate; The driving component driving the lead screw (704) to rotate is a lifting motor (701), the housing of the lifting motor (701) is fixedly connected to the equipment bracket (1), a driving pulley 2 (702) is fixedly provided on the output shaft of the lifting motor (701), a driven pulley 2 (703) is fixedly provided on the lead screw (704), and the driving pulley 2 (702) is connected to the driven pulley 2 (703) via a belt; The second driving pulley (702) and the second driven pulley (703) are both synchronous pulleys, and the belt is a synchronous belt; The equipment support (1) is fixedly provided with a guide rod 3 (706) arranged along the moving direction of the lifting plate (705), and the lifting plate (705) is fixedly provided with a guide hole 4 corresponding to the guide rod 3 (706), and the guide rod 3 (706) is installed on the inner side of the guide hole 4; A linear bearing is fixedly arranged on the inner side of the guide hole four, and the guide rod three (706) is installed on the inner side of the bearing in the guide hole four.

16. The container inner wall coating device according to claim 11, characterized in that: The container inner wall coating device further comprises a coating medium recovery component (8), wherein the coating medium recovery component (8) is used to collect the coating medium discharged from the container (3); The coating medium recovery component (8) is a funnel, one end of the funnel with a large opening corresponds to the clamping position, and one end of the funnel with a small opening is connected to the storage tank of the filling device.

17. A container inner wall coating system, characterized in that: include: A container (3) loading device, which is configured to arrange a plurality of containers (3) in an orderly manner; A filling device, which is configured to add a coating medium into the container (3), wherein the coating medium does not fill up the container (3); A container inner wall coating device, wherein the container inner wall coating device is the container inner wall coating device according to any one of claims 11 to 16; The coating process is completed by the container inner wall coating device, and the excess coating medium in the container (3) is discharged to complete the coating; A drying device is configured to dry the coated container (3).

18. An electronic device, comprising a processor and a memory connected to the processor for storing instructions executable by the processor, characterized in that: The processor is used to execute the container inner wall coating process described in any one of claims 1-11.

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