A detection sampling device and method for paint production

Abstract

The present invention relates to the field of paint production technology, and specifically to a detection sampling device and method for paint production, comprising a sampling rack, a sampling mechanism, and a sampling unit. In the present invention, the paint in the paint bucket is first stirred by a sampler and a stirring blade, and then sampling is performed, thereby reducing the influence of the paint on the obtained sample due to static stratification. Secondly, by using multiple groups of sampling groups at different heights, samples of the required height are obtained respectively, thereby improving the representativeness of the sampled samples and avoiding the tediousness of repeatedly inserting the sampling tool. In the present invention, all surfaces of components that come into contact with the paint are made of PTFE material. At the same time, when the immersion sample tube is removed, the immersion sample tube is adjusted to a downward tilt state by an adjustment part, thereby avoiding the problem of paint adhesion, mutual interference between samples, and environmental pollution. At the same time, the operation process is simplified, and there is no need to clean the sampling tool multiple times, thereby improving the convenience of the sampling process.

Description

Technical Field

[0001] The present invention relates to the technical field of paint production, in particular to a detection sampling device and method for paint production. Background Art

[0002] In the paint production process, paint testing and sampling is a very critical step. Its main purpose is to ensure the quality, consistency and safety of the final product. It is also a key link in optimizing production processes, reducing costs and ensuring compliance.

[0003] Currently, sampling is required during raw material testing and review, before finished product inspection, and before shipment. The sampling inspection process before shipment mainly involves random sampling of the same batch of paint and testing the samples. Currently, this step mainly uses existing sampling tools (such as sampling tubes or samplers) to insert into the paint bucket for sampling. Secondly, in order to improve the representativeness of the samples, samples are usually taken from different depths in the paint bucket.

[0004] After production, paint is stored in paint buckets. After standing still, the paint will be stratified, that is, the internal components of the paint will precipitate and separate. If sampling is performed directly, the representativeness of the obtained sample will be greatly reduced. Secondly, multiple samplings at different heights are required in the same bucket of paint. At the same time, the inspection of the same batch requires sampling of multiple buckets of paint. Therefore, the sampling tool needs to be used more times. When using traditional sampling tools to remove the paint bucket after sampling, the surface of the sampling tool will be stained with paint. Therefore, the sampling tool needs to be cleaned after a single sampling is completed to avoid mutual interference between paint samples. The need to clean the sampling tool and the need to repeatedly remove or put in the sampling tool during sampling greatly increase the cumbersomeness of the sampling process. At the same time, if the paint attached to the surface of the sampling tool falls into the external environment, it will increase safety hazards and pollute the environment. Summary of the Invention

[0005] Based on this, it is necessary to provide a detection sampling device and method for paint production, aiming to solve the problems of the above-mentioned prior art.

[0006] The present application provides a detection sampling device for paint production, comprising: a sampling rack, on which a sampling mechanism for taking out paint from a paint bucket is provided, the sampling mechanism comprising a dipping tube, and a dipping tube with a vertical axis rotating through the sampling rack.

[0007] The sampling machine frame is provided with a driving part for driving the immersion sample tube to rotate.

[0008] The immersion tube is provided with three sampling groups at different heights. The sampling groups include a plurality of samplers circumferentially arranged on the immersion tube and used for absorbing paint. The immersion tube is provided with a plurality of sampling tubes.

[0009] The immersion tube is provided with an adjustment portion for adjusting the angle of the sampler and a stirring portion for stirring the paint before sampling. When the angle of the sampler is adjusted to an inclined state, the sampler is placed in or taken out of the paint bucket. After the angle of the sampler is adjusted to a horizontal state, the stirring portion stirs horizontally. After the stirring operation is completed, the sampling tube samples the paint horizontally.

[0010] A sampling cylinder is fixedly arranged on the sampling machine frame, and a sampling unit is commonly arranged between the sampling cylinder and all samplers. The three sampling tubes are connected to the sampling cylinder through the sampling unit. The sampling unit controls the three sampling tubes to be connected to the sampling cylinder in sequence and perform sampling. Sampling bottles are arranged on both the front and back sides of the sampling cylinder.

[0011] The inner and outer surfaces of the immersion tube and the sampling tube are both made of non-stick PTFE material.

[0012] According to an advantageous embodiment, the sampling rack includes a transverse rack placed transversely on the inner wall of the upper end of the paint bucket and a longitudinal rack vertically arranged on the transverse rack.

[0013] According to a favorable embodiment, the driving portion includes a driving shaft, a driving shaft with an axis from left to right is rotatably arranged on the transverse frame, bevel gears are fixedly provided on the driving shaft and the immersion tube, the two bevel gears are engaged with each other, and a motor connected to the driving shaft is fixedly provided on the transverse frame.

[0014] According to a favorable embodiment, a sampling cavity is provided in the sampling cylinder, a piston is provided in the sampling cavity for sliding left and right, an electric guide rod is provided on the transverse frame, the telescopic end of the electric guide rod passes through the sampling cylinder and is connected to the piston, sampling ports are provided on the front and back sides of the sampling cylinder, and the sampling bottle is threadedly installed in the sampling port.

[0015] According to a favorable embodiment, a sampling cavity corresponding to the sampling group is opened in the immersion tube, and the sampling cavity is connected to the corresponding sampling tube. The sampling cavity is located above the corresponding sampling group. The sampling group also includes a rotating block. The circumferential surface of the immersion tube is rotated with multiple circumferentially evenly distributed rotating blocks. An elastic tube is commonly provided between the rotating block and the immersion tube, and the sampler is connected to the corresponding sampling cavity through the elastic tube.

[0016] According to a favorable embodiment, the sampling cavity is composed of a cylindrical section and a conical section with a larger upper portion and a smaller lower portion from top to bottom. A guide cone for guiding paint is fixedly provided in the sampling cavity, and the upper end opening of the elastic tube is located between the guide cone and the lower side of the conical section of the sampling cavity.

[0017] According to a favorable embodiment, the adjustment portion includes a receiving groove, the circumferential surface of the immersion sample tube is provided with a receiving groove corresponding one-to-one to the sampler, the rotating block is fixedly sleeved with a matching strip located in the receiving groove, the immersion sample tube is provided with an adjustment rod that slides up and down and has the same number as the sampling tubes in the same sampling group, the adjustment rod is fixedly sleeved with a U-shaped adjustment frame, and the matching strip is located in the adjustment frame.

[0018] According to a favorable embodiment, the sampling unit includes a U-shaped frame, two front-to-back symmetrical U-shaped frames are fixedly provided on the horizontal frame, a fixed plate is fixedly provided between the two U-shaped frames, the lower end surface of the fixed plate is rotatably provided with a rotating plate fixedly sleeved on three sampling tubes, a sampling tube is fixedly provided on the sampling cylinder, the other end of the sampling tube passes through the fixed plate, three docking ports connected to the sampling tube are opened on the rotating plate, an adjustment plate is provided on the vertical section of the U-shaped frame for sliding up and down, an adjustment circular plate is rotatably provided between the two adjustment plates, an adjustment rod is fixedly provided on the lower end surface of the adjustment original plate, the adjustment circular plate is slidably sleeved on the three sampling tubes, and an electric push rod is provided between the adjustment plate and the U-shaped frame.

[0019] According to a favorable embodiment, the sample separation unit also includes a guide portion for guiding the docking port to align with the sampling tube, the guide portion includes a guide block, and guide blocks corresponding to the sampling tubes are fixedly provided on the rotating plate, and guide grooves are provided on the guide blocks. A guide pin that slides up and down is provided through the fixed plate, and a reset spring is fixed between the guide pin and the fixed plate.

[0020] In summary, the present invention includes at least one of the following beneficial effects: First, the present invention uses a sampler and a stirring blade to stir the paint in the paint bucket first, and then performs sampling, thereby reducing the impact of paint static stratification on the obtained sample; secondly, through multiple groups of sampling groups at different heights, samples of the required heights are obtained respectively, thereby improving the representativeness of the sampled samples and reducing the complexity of the sampling process; in the present invention, all surfaces of components in contact with the paint are made of PTFE material; at the same time, when the immersion tube is removed, the immersion tube is adjusted to a downward tilted state by the adjustment part, thereby avoiding the problem of paint adhesion, avoiding mutual interference between samples and pollution of the environment, and simplifying the operation process, eliminating the need to clean the sampling tools multiple times, thereby improving the convenience of the sampling process.

[0021] Second, in the present invention, when sampling, the adjustment part adjusts the sampler to a horizontal state, thereby improving the accuracy of the sampling height required during sampling, ensuring that the sample obtained is paint of the required height, and improving the representativeness of the test sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A three-dimensional schematic diagram of a detection and sampling device for paint production provided according to an embodiment of the present invention is shown.

[0024] Figure 2 A partial cross-sectional view of a detection and sampling device for paint production provided according to an embodiment of the present invention is shown.

[0025] Figure 3 A partial cross-sectional view from a front view of a detection and sampling device for paint production provided according to an embodiment of the present invention is shown.

[0026] Figure 4 A schematic structural diagram of the sample immersion tube, stirring blades and U-shaped frame provided according to an embodiment of the present invention is shown.

[0027] Figure 5 A partial cross-sectional view between a transverse frame, a dip tube and a piston provided according to an embodiment of the present invention is shown.

[0028] Figure 6 A partial cross-sectional exploded view of the fixed plate, the rotating plate and the adjusting plate provided according to an embodiment of the present invention is shown.

[0029] Figure 7 A partial cross-sectional view from a frontal perspective is shown between the immersion tube, the stirring blade and the sampler provided according to an embodiment of the present invention.

[0030] Figure 8 The embodiment of the present invention provides Figure 7 Enlarged view of point A in the middle.

[0031] Figure 9 A schematic diagram showing the change of the tilt angle of the sampler provided according to an embodiment of the present invention is shown.

[0032] The above drawings include the following reference numerals: 1. sampling frame; 10. horizontal frame; 11. vertical frame; 12. extraction handle; 2. sampling mechanism; 20. immersion tube; 200. rotating block; 201. sampler; 202. sampling tube; 203. sampling cylinder; 204. sampling bottle; 205. piston; 206. sampling port; 207. blocking member; 208. support plate; 209. support spring; 21. sampling chamber; 210. elastic tube; 211. guide cone; 22. driving unit; 220. driving shaft; 2 21. Bevel gear; 222. Motor; 23. Adjustment part; 230. Accommodation groove; 231. Fitting strip; 232. Adjustment rod; 233. Protective cover; 234. Adjustment frame; 235. Adjustment plate; 236. Adjustment circular plate; 237. Electric push rod; 24. Stirring blade; 3. Sample separation unit; 30. U-shaped frame; 300. Fixed plate; 301. Rotating plate; 302. Sampling tube; 303. Docking port; 31. Guide part; 310. Guide block; 311. Guide groove; 312. Guide pin; 313. Return spring. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] like Figure 1 and Figure 2 As shown, a detection sampling device for paint production includes: a sampling frame 1, the sampling frame 1 includes a horizontal frame 10 arranged horizontally on the inner wall of the upper end of the paint bucket and a longitudinal frame 11 arranged vertically on the horizontal frame 10. In order to facilitate the removal and placement of the entire sampling device, an extraction handle 12 is provided on the longitudinal frame 11. The sampling frame 1 is provided with a sampling mechanism 2 for taking out paint from the paint bucket. The sampling mechanism 2 includes a immersion tube 20. The immersion tube 20 with a vertical axis is rotatably passed through one end of the horizontal frame 10 close to the sampling mechanism 2.

[0035] like Figure 1 and Figure 2 As shown, the horizontal frame 10 is provided with a driving part 22 for driving the immersion tube 20 to rotate.

[0036] like Figure 1 、 Figure 2 and Figure 8As shown, the immersion tube 20 is provided with three sampling groups at different heights, and the sampling group includes a rotating block 200. The circumferential surface of the immersion tube 20 is provided with multiple circumferentially distributed rotating blocks 200 through a fixed block. A sampler 201 for sucking paint is fixedly provided on the rotating block 200. The sampler 201 is provided with multiple sampling ports for extracting or discharging paint. The immersion tube 20 is provided with three circumferentially distributed sampling tubes 202.

[0037] like Figure 1 and Figure 2 As shown, the sample immersion tube 20 is provided with an adjusting portion 23 for adjusting the tilt angle of the sampler 201 and a stirring portion for stirring the paint before sampling. The stirring portion includes a stirring blade 24. The sampler 201 is fixedly provided with a stirring blade 24 located below it. The stirring area is increased by the stirring blade 24. Figure 9 When the adjustment part 23 adjusts the angle of the sampler 201 to an inclined state, it is used to put the sampler 201 into or take it out of the paint bucket. After the adjustment part 23 adjusts the angle of the sampler 201 to a horizontal state, the stirring part performs a horizontal stirring operation. After the stirring operation is completed, the sampler 201 performs horizontal sampling of paint.

[0038] like Figure 1 and Figure 2 As shown, a sampling cylinder 203 is fixedly provided on the horizontal frame 10, and a sampling unit 3 is provided between the sampling cylinder 203 and all the samplers 201. The three sampling tubes 202 are connected to the sampling cylinder 203 through the sampling unit 3. The sampling unit 3 controls the three sampling tubes 202 to connect with the sampling cylinder 203 in turn for sampling, and sampling bottles 204 are provided on both the front and rear sides of the sampling cylinder 203.

[0039] The inner and outer surfaces of the immersion tube 20 , the sampling tube 202 , and the inner surface of the sampling cylinder 203 are all made of non-stick PTFE material.

[0040] The staff holds the extraction handle 12, places the sampling rack 1 on the paint bucket, and in the process inserts the sampling tube 20 into the paint inside through the mouth of the paint bucket. At this time, the longitudinal rack 11 presses the upper end of the paint bucket surface and the transverse rack 10 presses the upper end of the edge of the paint bucket to provide stable support for the subsequent sampling process.

[0041] Secondly, before inserting the immersion tube 20 into the paint, the adjustment part 23 works so that the end of the sampler 201 away from the immersion tube 20 swings downward and eventually becomes tilted, and then is placed in the paint bucket to avoid the problem of the sampler 201 being stuck with the paint bucket mouth and being unable to sample. After the immersion tube 20 is placed in the paint, the adjustment part 23 works again so that the sampler 201 swings in the opposite direction and eventually becomes horizontal. Then the driving part 22 works so that the immersion tube 20 drives all the samplers 201 to rotate synchronously, and then the paint in the bucket is stirred by the sampler 201 and the stirring blade 24. Sampling is performed after stirring is completed, so as to avoid the internal components of the paint from settling and separating due to the long-term static state of the paint bucket, which affects the authenticity of the sample, and improves the representativeness of the sample.

[0042] After the stirring is completed, the sampler 201 is still in a horizontal state, and the sampling unit 3 works so that the sampling cylinder 203 is connected with the sampling tubes 202 corresponding to the three sampling groups from top to bottom, and the corresponding sampling operations are performed. Before a single sampling operation, an empty sampling bottle 204 is installed. After the sampling operation, the paint of the corresponding height is extracted into the sampling bottle 204, and finally paint samples corresponding to different heights are obtained.

[0043] After a single sampling operation, the sampling mechanism 2 pumps the remaining paint in the sampler 201 and the sampling tube 202 back into the paint bucket to avoid paint waste and environmental pollution, and then takes out the immersion sample tube 20.

[0044] like Figure 2 and Figure 3 As shown, the driving unit 22 includes a driving shaft 220. The driving shaft 220 is rotatably mounted on the transverse frame 10 with its axis running from left to right. Bevel gears 221 are fixedly mounted on the driving shaft 220 and the immersion tube 20. The two bevel gears 221 mesh with each other and are both located above the transverse frame 10. A motor 222 connected to the driving shaft 220 is fixedly mounted on the transverse frame 10. When the motor 222 works, the driving shaft 220 drives the right bevel gear 221 to rotate synchronously. The meshing of the two bevel gears 221 causes the other bevel gear 221 to drive the immersion tube 20 to rotate synchronously.

[0045] like Figure 2 、 Figure 4 and Figure 5As shown, a sampling cavity is provided in the sampling cylinder 203, and a piston 205 is provided in the sampling cavity for sliding left and right. An electric guide rod is provided on the horizontal frame 10, and the telescopic end of the electric guide rod passes through the sampling cylinder 203 and is fixedly connected to the piston 205. Sampling ports 206 are provided on both the front and rear sides of the sampling cylinder 203. The two sampling ports 206 are symmetrical front and back. The front sampling port 206 is used as an example for explanation. The front sampling port 206 is tilted upward from front to back, and the sampling bottle 204 is threadedly installed to the sampling bottle. In the sampling port 206, when a single sampling port 206 meets the required sample sampling capacity requirement, the existing bottle stopper is used to seal the other sampling port 206, and a support plate 208 for supporting the sampling bottle 204 is slidingly provided on the longitudinal frame 11, and a support spring 209 for providing supporting elastic force is fixedly provided between the support plate 208 and the longitudinal frame 11. In order to seal the sampling bottle 204 and the corresponding sampling port 206 after sampling is completed, a sealing member 207 is fixedly provided on the right end face of the piston 205.

[0046] After the sampling rack 1 is placed on the paint bucket, the sampling bottle 204 is installed, and the corresponding number of sampling ports 206 are selected according to the volume of the sample to be obtained. Then, the sampling bottle 204 is tightened and installed in the corresponding sampling port 206 and the sampling bottle 204 is placed on the support plate 208. At this time, the axis of the sampling bottle 204 is in the same direction as the corresponding sampling port 206. Secondly, after installation, the support spring 209 is in a compressed state. The elastic force generated by the deformation of the support spring 209 enables the support plate 208 to support the corresponding sampling bottle 204, thereby improving the stability of the sampling bottle 204 after the bottle mouth and the sampling port 206 are connected. After the paint is extracted into the sampling bottle 204, the inclined setting of the sampling bottle 204 avoids the problem of the paint in the sampling bottle 204 pouring out when the sampling bottle 204 is taken out.

[0047] The electric guide rod drives the piston 205 to move left and right to control the sampling cylinder 203 to suck the paint for sampling. The sampling process is as follows: in the initial position, the piston 205 is located at the leftmost position in the sampling cylinder, the required sampling bottle 204 is assembled, and the immersion tube 20 is inserted into the paint and stirred. Then the electric guide rod drives the piston 205 to move right, and the paint sample of the specified height in the paint bucket is controlled by the sampling unit 3. After the piston 205 passes the sampling port 206, as the piston 205 continues to move, the extracted paint enters the sampling bottle 204. After the sampling is completed, the electric guide rod causes the piston 205 to move left, pressing the excess paint in the sampling cylinder back into the paint bucket. At this time, the blocking member 207 blocks the corresponding sampling port 206, and then the sampling bottle 204 containing the paint sample is taken out. The above operation is repeated to obtain multiple bottles of paint samples.

[0048] like Figure 7 and Figure 8As shown, the immersion tube 20 is provided with a sampling cavity 21 corresponding to the sampling group one by one. The sampling cavity 21 is connected to the corresponding sampling tube 202. The sampling cavity 21 is located above the corresponding sampling group. The sampling group also includes an elastic tube 210. The elastic tube 210 is commonly provided between the rotating block 200 and the immersion tube 20. The sampler 201 is connected to the corresponding sampling cavity 21 through the elastic tube 210.

[0049] like Figure 8 As shown, the sampling cavity 21 is composed of a cylindrical section and a conical section with a larger upper portion and a smaller lower portion from top to bottom. A conical guide cone 211 for guiding paint is fixedly provided in the sampling cavity 21. The upper end opening of the elastic tube 210 is located between the guide cone 211 and the lower side of the conical section of the sampling cavity 21.

[0050] After extracting the paint, the excess paint needs to be returned to the paint bucket. During this process, the paint returns from the sampling cylinder 203 through the corresponding sampling tube 202 to the sampling chamber 21. The guide cone 211 and the inclined surface of the frustum section of the sampling chamber 21 guide the excess paint into the corresponding elastic tube 210, and then passes through the elastic tube 210 through the sampler 201 and returns to the paint bucket. It should be noted that before discharging the excess paint, the sampler 201 is tilted downward by the adjustment part 23 to facilitate the emptying of excess paint in the sampler 201 and the sampling tube 202.

[0051] like Figure 1 、 Figure 5 and Figure 6 As shown, the sample dividing unit 3 includes a U-shaped frame 30, and two front-to-back symmetrical U-shaped frames 30 are fixedly provided on the transverse frame 10. A fixed plate 300 located directly above the immersion sample tube 20 is fixedly provided between the two U-shaped frames 30. A rotating plate 301 fixedly sleeved on the three sampling tubes 202 is rotatably provided on the lower end surface of the fixed plate 300. The sampling tube 302 is fixedly provided on the sampling cylinder 203, and the other end of the sampling tube 302 passes through the fixed plate 300. Three docking ports 303 communicating with the sampling tube 202 are opened on the rotating plate 301.

[0052] like Figure 1 、 Figure 5 and Figure 6 As shown, the sample separation unit 3 also includes a guide portion 31 for guiding the docking port 303 to align with the sampling tube 302. The guide portion 31 includes a guide block 310. The rotating plate 301 is fixed with a guide block 310 corresponding to the sampling tube 202. A guide groove 311 is provided on the guide block 310. The fixed plate 300 is penetrated by a guide pin 312 that slides up and down. A return spring 313 is fixed between the guide pin 312 and the fixed plate 300.

[0053] After the paint stirring operation is completed, the motor 222 rotates slowly to make the immersion sample tube 20 rotate synchronously. The immersion sample tube 20 drives the rotating plate 301 and the guide block 310 to rotate synchronously through the sampling tube 202. Finally, when the guide block 310 indirectly corresponding to the uppermost sampling group (the sampling group corresponds to the corresponding sampling tube 202, and the sampling tube 202 corresponds to the corresponding guide block 310) rotates to just below the guide pin 312, the motor 222 stops rotating, and the guide pin 312 is manually pressed down. The return spring 313 is compressed, and the guide pin 312 gradually moves downward and is inserted into the corresponding guide groove 311, positioning the immersion sample tube 20 and the sampling tube 20. 2, the corresponding docking port 303 is connected to the sampling tube 302, so that the above-mentioned designated sampling tube 202, all the samplers 201 in the uppermost sampling group, the sampling tube 302 and the sampling cylinder 203 are finally connected. Then the electric guide rod works to make the sampling cylinder 203 extract the paint sample at that height and put it into the sampling bottle 204. Then the manual pressing stops, and the elastic force generated by the deformation of the return spring 313 causes the guide pin 312 to move up and exit the guide groove 311. The motor 222 continues to work, causing the next guide block 310 to rotate to the bottom of the guide pin 312. The above operation is repeated to collect samples from different heights from top to bottom.

[0054] like Figure 1 、 Figure 6 and Figure 8As shown, the adjusting portion 23 includes a receiving groove 230, and the circumferential surface of the immersion sample tube 20 is provided with a receiving groove 230 corresponding to the sampler 201. The rotating block 200 is fixedly sleeved with a matching strip 231 located in the receiving groove 230. The immersion sample tube 20 is provided with an adjusting rod 232 that slides up and down and has the same number as the sampling tubes 202 in the same sampling group. In order to prevent the adjusting rod 232 from adhering to the paint in the sampling chamber 21 during the up and down movement, and to prevent the adjusting rod 232 from adhering to the paint during the up and down movement and affecting the subsequent sampling process, a protective sleeve 233 is fixedly provided between the guide cone 211 and the inner wall of the sampling chamber 21, and the adjusting rod 232 slides up and down through the corresponding receiving groove 230 and the protective sleeve 233, and the corresponding adjusting rod 232 is prevented from contacting with the paint through the protective sleeve 233. The upper fixed sleeve is provided with a U-shaped adjusting frame 234, and the matching strip 231 is located in the adjusting frame 234. In order to prevent paint from remaining on the adjusting frame 234 and the inner wall of the receiving groove 230, the upper ends of the two horizontal sections of the adjusting frame 234 are triangular, and the lower end surface of the receiving groove 230 is inclined from top to bottom in the direction away from the immersion tube 20, so that when the immersion tube 20 is taken out, the paint can automatically flow back into the paint bucket along the inclined surface on the receiving groove 230 or the inclined surface of the adjusting frame 234. The vertical sections of the U-shaped frame 30 are all provided with adjusting plates 235 that slide up and down, and an adjusting circular plate 236 is provided between the two adjusting plates 235 to rotate together. The adjusting rod 232 is fixedly provided on the lower end surface of the adjusting circular plate 236, and the adjusting circular plate 236 is slidably sleeved on the three sampling tubes 202 up and down. An electric push rod 237 is provided between the adjusting plate 235 and the U-shaped frame 30.

[0055] See Figure 9 Before the immersion sample tube 20 is inserted into the paint bucket, the electric push rod 237 works, driving the adjustment circular plate 236 and the adjustment rod 232 to move upward through the adjustment plate 235, and the adjustment rod 232 drives the adjustment frame 234 thereon to move upward synchronously. Through the cooperation between the adjustment frame 234 and the matching strip 231, the matching strip 231 drives the rotating block 200, the sampler 201 and the stirring blade 24 to tilt downward, making it easier to insert the immersion sample tube 20 into the paint through the opening of the paint bucket.

[0056] After the immersion tube 20 is inserted into the paint, the electric push rod 237 works to move the adjustment circular plate 236 and the adjustment rod 232 downward, so that the matching strip 231 drives the rotating block 200 and the sampler 201 to rotate in the opposite direction, and finally the sampler 201 and the stirring blade 24 are in a horizontal state. Then the paint is stirred. After stirring the paint, the sampler 201 is still kept in a horizontal state, and the sampling operation is carried out.

[0057] It is important to emphasize that all paint-contacting surfaces are made of PTFE. This prevents paint from adhering to the dip tube 20 after removal, facilitating subsequent sampling of the paint in the next paint bucket. It should be noted that even if a small amount of paint adheres, it will not significantly affect the test results and is within the normal error range.

[0058] In addition, the present invention also provides a method for sampling for paint production, comprising the following steps: S1, inserting the dip sample tube 20: Figure 9 , first adjust the sampler 201 and the stirring blade 24 to an inclined state through the adjustment part 23, then the staff holds the extraction handle 12, places the sampling rack 1 on the paint bucket and in the process allows the immersion tube 20 to be inserted into the paint inside through the barrel mouth of the paint bucket.

[0059] S2. Stirring the paint: the regulating part 23 works to deflect the sampler 201 and the stirring blade 24 to a horizontal state, and then the driving part 22 works to make the immersion tube 20 drive all the samplers 201 to rotate synchronously, and the paint in the barrel is stirred through the sampler 201 and the stirring blade 24.

[0060] S3. Single-layer sampling: Manually press down the guide pin 312, the return spring 313 is compressed, and the guide pin 312 gradually moves downward and inserts into the corresponding guide groove 311, positioning the immersion tube 20 and the sampling tube 202. The corresponding docking port 303 is connected with the sampling tube 302, and finally the designated sampling tube 202, all the samplers 201 in the uppermost sampling group, and the sampling tube 302 are connected with the sampling cylinder 203. After that, the electric guide rod works to make the sampling cylinder extract the paint sample at that height and put it into the sampling bottle 204.

[0061] S4. Discharge the paint: the electric guide rod operates to move the piston 205 in the sampling cylinder 203 to the left, thereby pumping the excess paint in the sampling cylinder, the sampling tube 202 and the sampling cavity 21 back into the paint bucket.

[0062] S5. Layered sampling: The motor 222 operates to make the immersion tube 20 drive the sampling tube 202 to rotate synchronously, so that the next fixed block rotates to below the guide pin 312, and repeats step S3 to sample and collect paint samples at different heights from top to bottom.

[0063] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0064] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0065] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0066] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paint production detection sampling device, characterized in that: include: A sampling rack is provided with a sampling mechanism, the sampling mechanism includes a dip sample tube, and the dip sample tube with a vertical axis rotates through the sampling rack; The sampling machine frame is provided with a driving part for driving the immersion sample tube to rotate; The immersion tube is provided with three sampling groups at different heights, the sampling groups including a plurality of samplers circumferentially arranged on the immersion tube and used to absorb paint, and the immersion tube is provided with a plurality of sampling tubes; The immersion tube is provided with an adjustment portion for adjusting the angle of the sampler and a stirring portion for stirring the paint before sampling. When the angle of the sampler is adjusted to an inclined state, the sampler is placed in or taken out of the paint bucket. After the angle of the sampler is adjusted to a horizontal state, the stirring portion stirs horizontally. After the stirring operation is completed, the sampling tube samples the paint horizontally. A sampling cylinder is fixedly arranged on the sampling rack, and a sampling unit is commonly provided between the sampling cylinder and all the samplers. The three sampling tubes are connected to the sampling cylinder through the sampling unit. The sampling unit controls the three sampling tubes to be connected to the sampling cylinder in sequence and perform sampling. Sampling bottles are provided on both sides of the sampling cylinder. The inner and outer surfaces of the immersion tube and the sampling tube are both made of non-stick PTFE material.

2. A paint production detection sampling device according to claim 1, characterized in that: The sampling rack comprises a horizontal rack placed transversely on the inner wall of the upper end of the paint bucket and a longitudinal rack vertically arranged on the horizontal rack.

3. A paint production detection sampling device according to claim 2, characterized in that: The driving part includes a driving shaft, a driving shaft with an axis from left to right is rotatably arranged on the horizontal frame, bevel gears are fixedly sleeved on the driving shaft and the immersion tube, the two bevel gears are meshed with each other, and a motor connected to the driving shaft is fixedly arranged on the horizontal frame.

4. A paint production detection sampling device according to claim 2, characterized in that: A sampling cavity is provided in the sampling cylinder, a piston is provided in the sampling cavity for sliding left and right, an electric guide rod is provided on the horizontal frame, the telescopic end of the electric guide rod passes through the sampling cylinder and is connected to the piston, sampling ports are provided on the front and back sides of the sampling cylinder, and the sampling bottle is threadedly installed in the sampling port.

5. The paint production detection sampling device according to claim 1, characterized in that: The immersion tube is provided with a sampling cavity corresponding to the sampling group one by one, and the sampling cavity is connected to the corresponding sampling tube. The sampling cavity is located above the corresponding sampling group. The sampling group also includes a rotating block. The circumferential surface of the immersion tube is rotated with multiple circumferentially evenly distributed rotating blocks. An elastic tube is commonly provided between the rotating block and the immersion tube, and the sampler is connected to the corresponding sampling cavity through the elastic tube.

6. A paint production detection sampling device according to claim 5, characterized in that: The sampling cavity is composed of a cylindrical section and a frustum section which is larger at the top and smaller at the bottom from top to bottom. A guide cone for guiding paint is fixedly arranged in the sampling cavity. The upper end opening of the elastic tube is located between the guide cone and the lower side of the frustum section of the sampling cavity.

7. The paint production detection sampling device according to claim 5, characterized in that: The adjustment part includes a receiving groove, and the circumferential surface of the immersion sample tube is provided with a receiving groove corresponding to the sampler one by one. The rotating block is fixedly sleeved with a matching strip located in the receiving groove. The immersion sample tube is provided with an adjustment rod that slides up and down and has the same number as the sampling tubes in the same sampling group. The adjustment rod is fixedly sleeved with a U-shaped adjustment frame, and the matching strip is located in the adjustment frame.

8. The paint production detection sampling device according to claim 7, characterized in that: The sampling unit includes a U-shaped frame, two front-to-back symmetrical U-shaped frames are fixedly arranged on the horizontal frame, a fixed plate is fixedly arranged between the two U-shaped frames, the lower end surface of the fixed plate is rotatably provided with a rotating plate fixedly sleeved on three sampling tubes, a sampling tube is fixedly provided on the sampling cylinder, the other end of the sampling tube passes through the fixed plate, three docking ports connected to the sampling tube are opened on the rotating plate, an adjustment plate is provided on the vertical section of the U-shaped frame for sliding up and down, an adjustment circular plate is rotatably arranged between the two adjustment plates, an adjustment rod is fixedly provided on the lower end surface of the adjustment circular plate, the adjustment circular plate is slidably sleeved on the three sampling tubes, and an electric push rod is provided between the adjustment plate and the U-shaped frame.

9. A paint production detection sampling device according to claim 8, characterized in that: The sample separation unit also includes a guide part for guiding the docking port to align with the sampling tube, the guide part includes a guide block, and a guide block corresponding to the sampling tube is fixedly provided on the rotating plate, a guide groove is provided on the guide block, and a guide pin that slides up and down is provided through the fixed plate, and a reset spring is fixed between the guide pin and the fixed plate.

10. A method for sampling and testing paint production, which is accomplished by using the device for sampling and testing paint production according to claim 8, characterized in that: The following steps are involved: S1. Inserting the dip sample tube: Adjust the sampler and the stirring part to an inclined state through the adjustment part, then place the sampling rack on the paint bucket and insert the dip sample tube into the paint bucket; S2. Stirring the paint: The regulating unit operates to deflect the sampler and the stirring unit to a horizontal state, and then the driving unit operates to cause the immersion tube to drive all the samplers to rotate synchronously, stirring the paint through the sampler and the stirring unit; S3. Single-layer sampling: Position the dip tube and sampling tube so that the designated sampling tube, all the samplers in the uppermost sampling group, and the sampling tube are connected to the sampling cylinder. The sampling cylinder then extracts the paint sample at that height and places it into the sampling bottle. S4. Drain paint: Pump excess paint in the sampling cylinder, sampling tube and immersion tube back into the paint bucket; S5. Layered sampling: The driving unit operates to make the immersion tube drive the sampling tube to rotate synchronously, and step S3 is repeated to sample and collect paint samples at different heights from top to bottom.

Images