CN107449637B - High-low layer synchronous sampler for barreled gravure printing ink - Google Patents

High-low layer synchronous sampler for barreled gravure printing ink Download PDF

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Publication number
CN107449637B
CN107449637B CN201710594474.7A CN201710594474A CN107449637B CN 107449637 B CN107449637 B CN 107449637B CN 201710594474 A CN201710594474 A CN 201710594474A CN 107449637 B CN107449637 B CN 107449637B
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China
Prior art keywords
piston
storage cavity
limit baffle
outlet
cavity opening
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CN201710594474.7A
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Chinese (zh)
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CN107449637A (en
Inventor
陈宝珉
陆万林
陈彬才
梁德全
钟仁安
冼丹丹
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Guangxi Zhenlong Industrial Co ltd
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Guangxi Zhenlong Industrial Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006Dispersed solids
    • G01N2001/1012Suspensions
    • G01N2001/1025Liquid suspensions; Slurries; Mud; Sludge

Abstract

The invention discloses a high-low layer synchronous sampler for barreled gravure printing ink, which comprises a sampling column, wherein more than two mutually independent sample storage cavities are distributed in the sampling column from top to bottom, and the arrangement of a plurality of sample storage cavities can store the printing ink with different depths; the arrangement of the piston guide pipe, the piston, the opening of the storage cavity, the piston guide hole, the piston closed flow part, the sample inlet and outlet and the like can ensure and facilitate the adjustment of the communication and isolation between the sample storage cavity and the outside, so that the sampler can obtain the ink with ideal depth at the expected depth, the sampling ink is ensured not to be polluted, and the authenticity of the detection result is ensured.

Description

High-low layer synchronous sampler for barreled gravure printing ink
Technical Field
The invention relates to the technical field of chemical material detection devices, in particular to a high-low layer synchronous sampler for barreled gravure printing ink.
Background
The gravure printing ink is insoluble ink, and the raw materials of the ink are mainly dispersed in an ink solvent in a suspension state, and due to the influence of the mass and buoyancy of raw material particles, the components of the high and low layers of the barreled ink have certain differences. Currently, in the field of chemical material detection, most of intaglio printing ink sampling is to directly use a sampling cup to obtain surface ink or middle-upper layer ink, and it is difficult to obtain middle-layer and middle-lower layer ink. The ink quality condition cannot be truly reflected by the detection result because the ink is not sampled in place.
Disclosure of Invention
Aiming at the defects, the invention provides the high-low layer synchronous sampler for the barreled gravure printing ink, which can truly and effectively take the printing ink with various depths in the barreled printing ink so as to ensure the authenticity of a detection result.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the high-low layer synchronous sampler for barreled gravure printing ink comprises a sampling column, wherein more than two mutually independent sample storage cavities are distributed in the sampling column from top to bottom, a storage cavity opening is formed in the side wall of the sampling column at the corresponding position of each sample storage cavity, and the storage cavity openings are communicated with the sample storage cavities; the sampling column is provided with a piston guide pipe and a plurality of pistons positioned in the piston guide pipe in a fitting manner on the side wall provided with the opening of the storage cavity, the number of the pistons is consistent with that of the openings of the storage cavity, the pistons are connected through piston traction rods, the top surface of the uppermost piston is also provided with a piston traction rod, the piston traction rod penetrates out of the piston guide pipe upwards, and the top end of the piston traction rod is provided with a piston lifting rod handle; a piston diversion hole penetrating through the piston is transversely formed in the piston, and a piston closing part is arranged below or above the piston diversion hole; the side wall of the piston guide tube at the corresponding height of the storage cavity opening is provided with a sample inlet and a sample outlet, and the sample inlet and the sample outlet transversely penetrate through the piston guide tube and are communicated with the storage cavity opening.
As an improvement of the invention, the transverse section of the piston guide tube is round or square, and the outer contour of the piston is matched with the inner contour of the piston guide tube.
As an improvement of the invention, an upper piston limit baffle is arranged above the uppermost piston in the piston guide pipe, and a lower piston limit baffle is arranged below the lowermost piston in the piston guide pipe; when the top surface of the uppermost piston contacts the upper piston limit baffle, the piston flow closing part is flush with the storage cavity opening and the sample inlet and outlet, and when the bottom surface of the lowermost piston contacts the lower piston limit baffle, the piston flow guiding hole is flush with the storage cavity opening and the sample inlet and outlet; or when the top surface of the uppermost piston contacts the upper piston limit baffle, the piston diversion hole is flush with the storage cavity opening and the sample inlet and outlet, and when the bottom surface of the lowermost piston contacts the lower piston limit baffle, the piston flow closing part is flush with the storage cavity opening and the sample inlet and outlet.
As an improvement of the invention, a piston limiting rod is arranged below the top surface of the sampling column and the piston lifting rod handle, and when the piston lifting rod handle is contacted with the top surface of the piston limiting rod, the piston diversion hole is flush with the opening of the storage cavity and the sample inlet and outlet.
As an improvement of the invention, the upper piston limit baffle is of a plate-shaped structure with a hollowed center, the periphery of the upper piston limit baffle is connected with the inner wall of the piston guide pipe, and the piston traction rod passes through the upper piston limit baffle through the hollowed center part and can move up and down in the hollowed center part of the upper piston limit baffle.
As an improvement of the invention, the top surface of the sampling column is also provided with a sampling column handle.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a high-low layer synchronous sampler for barreled gravure printing ink, which comprises a sampling column, wherein more than two mutually independent sample storage cavities are distributed in the sampling column from top to bottom, and the arrangement of a plurality of sample storage cavities can store the printing ink with different depths; the arrangement of the piston guide pipe, the piston, the opening of the storage cavity, the piston guide hole, the piston closed flow part, the sample inlet and outlet and the like can ensure and facilitate the adjustment of the communication and isolation between the sample storage cavity and the outside, so that the sampler can obtain the ink with ideal depth at the expected depth, the sampling ink is ensured not to be polluted, and the authenticity of the detection result is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
fig. 3 is a schematic illustration of the connection of the piston to the piston traction rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, 2 and 3, the invention provides a high-low layer synchronous sampler for barreled gravure printing ink, which comprises a sampling column 1, wherein two mutually independent sample storage cavities 2 are distributed in the sampling column 1 from top to bottom, a storage cavity opening 3 is formed in the side wall of the sampling column 1 at the corresponding position of each sample storage cavity 2, and the storage cavity opening 3 is communicated with the sample storage cavity 2; the sampling column 1 is provided with a piston guide pipe 4 and a plurality of pistons 5 positioned in the piston guide pipe 4 in a fitting manner on the side wall provided with the storage cavity opening 3, the number of the pistons 5 is consistent with that of the storage cavity opening 3, the pistons 5 are connected through a piston traction rod 6, the top surface of the uppermost piston 5 is also provided with the piston traction rod 6, the piston traction rod 6 penetrates out of the piston guide pipe 4 upwards, and the top end of the piston traction rod 6 is provided with a piston lifting rod handle 7; a piston guide hole 8 penetrating through the piston 5 is transversely formed in the piston 5, and a piston closing part 10 is arranged below the piston guide hole 8 in the piston 5; the piston guide tube 4 is provided with a sample inlet and outlet 9 on the side wall of the storage cavity opening 3 at the corresponding height, and the sample inlet and outlet 9 transversely penetrates the piston guide tube 4 and is communicated with the storage cavity opening 3.
The length of the sampling column 1 and the distance between the individual sample storage chambers 2 can be set according to a predetermined sampling depth of the ink to be sampled.
The piston guide 4 has a circular or square transverse cross-section, and the outer contour of the piston 5 matches the inner contour of the piston guide 4. In a preferred embodiment, referring to fig. 3, the transverse cross section of the piston tube 4 is square, that is, the transverse cross section of the inner cavity of the piston tube 4 is square, the outer contour of the piston 5 is also square, the outer contour of the square piston 5 and the transverse cross section of the piston tube 4 limit the circumferential rotation of the piston 5, so that the piston 5 can move only in the axial direction of the piston tube 4, and the piston diversion hole 8 can be aligned with the storage cavity opening 3 and the sample inlet and outlet 9 at a certain height.
Preferably, in this embodiment, referring to fig. 1 and 2, an upper piston limit baffle 11 is disposed above the uppermost piston 5 in the piston guide 4, and a lower piston limit baffle 12 is disposed below the lowermost piston 5 in the piston guide 4; when the top surface of the uppermost piston 5 contacts the upper piston limit baffle 11, the piston closed flow portion 10 is flush with the storage chamber opening 3 and the sample inlet and outlet 9, and when the bottom surface of the lowermost piston 5 contacts the lower piston limit baffle 12, the piston deflector hole 8 is flush with the storage chamber opening 3 and the sample inlet and outlet 9. The main functions of the upper piston limit baffle 11 and the lower piston limit baffle 12 are limiting and positioning the piston 5, and the position relation between the piston diversion hole 8 or the piston closed flow part 10 and the storage cavity opening 3 and the sample inlet and outlet 9 is known through the contact of the piston 5 with the upper piston limit baffle 11 or the lower piston limit baffle 12, so that whether the piston diversion hole 8 or the piston closed flow part 10 is aligned with the storage cavity opening 3 and the sample inlet and outlet 9 can be intuitively known. When the piston guide hole 8 is aligned with the storage cavity opening 3 and the sample inlet and outlet 9 (as shown in fig. 2), ink can enter and exit the sample storage cavity 2 through the piston guide hole 8, the sample inlet and outlet 9 and the storage cavity opening 3, and when the piston flow blocking part 10 is aligned with the storage cavity opening 3 and the sample inlet and outlet 9 (as shown in fig. 1), barreled gravure printing ink cannot enter the sample storage cavity 2, and ink in the sample storage cavity 2 cannot exit.
Of course, there are other forms (not shown in this embodiment) of the alignment of the piston closing portion 10 with the storage chamber opening 3 and the sample inlet/outlet 9, such as when the top surface of the uppermost piston 5 contacts the upper piston stopper 11, the piston flow guide hole 8 is flush with the storage chamber opening 3 and the sample inlet/outlet 9, and when the bottom surface of the lowermost piston 5 contacts the lower piston stopper 12, the piston closing portion 10 is flush with the storage chamber opening 3 and the sample inlet/outlet 9.
In the preferred embodiment, a piston stop lever 13 is provided below the top surface of the sampling post 1 and the piston rod handle 7, and when the piston rod handle 7 is in contact with the top surface of the piston stop lever 13, the piston diversion hole 8 is flush with the storage cavity opening 3 and the sample inlet and outlet 9. By arranging the piston limiting rod 13, the position relation between the piston diversion hole 8 and the storage cavity opening 3 and the sample inlet and outlet 9 can be known more intuitively and accurately.
The upper piston limit baffle 11 is of a plate-shaped structure with a hollowed-out center, the periphery of the upper piston limit baffle 11 is connected with the inner wall of the piston guide pipe 4, and the piston traction rod 6 penetrates through the upper piston limit baffle 11 through the hollowed-out center part and can move up and down in the hollowed-out center part of the upper piston limit baffle 11.
As an improvement of the present invention, the top surface of the sampling column 1 is further provided with a sampling column handle 14 to facilitate the taking of the sampling column 1.
Based on the preferred examples given in this detailed description, the working principle of the invention is: the top surface of the uppermost piston 5 is lifted to a position contacting the upper piston limit baffle 11 under the action of the piston lifting rod handle 7 and the piston traction rod 6, and at the moment, the piston closed flow part 10 is level with the storage cavity opening 3 and the sample inlet and outlet 9, so that the sample storage cavity 2 is isolated from the outside (as shown in figure 1); then the sampling column 1 is placed at the sampling depth in the ink oil barrel to be sampled, the piston lifting rod handle 7 and the piston traction rod 6 are pressed down, the bottom surface of the lowest piston 5 is contacted with the lower piston limit baffle 12 (if the piston limit rod 13 is arranged, the piston lifting rod handle 7 is contacted with the top surface of the piston limit rod 13 at the moment), the piston diversion hole 8 is enabled to be flush with the storage cavity opening 3 and the sample inlet and outlet 9 (as shown in fig. 2), ink can enter and exit the sample storage cavity 2 through the piston diversion hole 8, the sample inlet and outlet 9 and the storage cavity opening 3, after a period of time, the ink is filled in the sample storage cavity 2, then the piston lifting rod handle 7 and the piston traction rod 6 are lifted, the top surface of the uppermost piston 5 is contacted with the position of the upper piston limit baffle 11, at the moment, the piston closed flow part 10 is flush with the storage cavity opening 3 and the sample inlet and outlet 9, the sample storage cavity 2 is ensured to be isolated from the outside again, and finally the sampling column 1 is lifted out of the ink barrel, and finally the ink sample with different depths and true and effectiveness is obtained.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (3)

1. The utility model provides a synchronous sampler of barreled gravure printing ink high low floor which characterized in that: the sampling device comprises a sampling column (1), wherein the top surface of the sampling column (1) is also provided with a sampling column handle (14), more than two mutually independent sample storage cavities (2) are distributed in the sampling column (1) from top to bottom, a storage cavity opening (3) is formed in the side wall of the sampling column (1) at the corresponding position of each sample storage cavity (2), and the storage cavity openings (3) are communicated with the sample storage cavities (2); the sampling column (1) is provided with a piston guide pipe (4) and a plurality of pistons (5) positioned in the piston guide pipe (4) on the side wall provided with the storage cavity opening (3), the number of the pistons (5) is consistent with that of the storage cavity openings (3), the pistons (5) are connected through piston traction rods (6), the top surface of the uppermost piston (5) is also provided with a piston traction rod (6), the piston traction rod (6) upwards penetrates out of the piston guide pipe (4), and a piston lifting rod handle (7) is arranged at the top end of the piston traction rod (6); a piston diversion hole (8) penetrating through the piston (5) is transversely formed in the piston (5), and a piston closing part (10) is arranged below or above the piston diversion hole (8) of the piston (5); the piston guide tube (4) is provided with a sample inlet and outlet (9) on the side wall of the storage cavity opening (3) at the corresponding height, and the sample inlet and outlet (9) transversely penetrates through the piston guide tube (4) and is communicated with the storage cavity opening (3);
an upper piston limit baffle (11) is arranged above the uppermost piston (5) in the piston guide pipe (4), and a lower piston limit baffle (12) is arranged below the lowermost piston (5) in the piston guide pipe (4); when the top surface of the uppermost piston (5) contacts the upper piston limit baffle (11), the piston flow closing part (10) is flush with the storage cavity opening (3) and the sample inlet and outlet (9), and when the bottom surface of the lowermost piston (5) contacts the lower piston limit baffle (12), the piston flow guiding hole (8) is flush with the storage cavity opening (3) and the sample inlet and outlet (9); or when the top surface of the uppermost piston (5) contacts the upper piston limit baffle (11), the piston diversion hole (8) is flush with the storage cavity opening (3) and the sample inlet and outlet (9), and when the bottom surface of the lowermost piston (5) contacts the lower piston limit baffle (12), the piston closed flow part (10) is flush with the storage cavity opening (3) and the sample inlet and outlet (9); the sampling column is characterized in that a piston limiting rod (13) is arranged below the piston lifting rod handle (7), and when the piston lifting rod handle (7) is in contact with the top surface of the piston limiting rod (13), the piston guide hole (8) is flush with the storage cavity opening (3) and the sample inlet and outlet (9).
2. The barreled gravure ink high-low layer synchronous sampler of claim 1, wherein: the transverse section of the piston guide tube (4) is round or square, and the outer contour of the piston (5) is matched with the inner contour of the piston guide tube (4).
3. The barreled gravure ink high-low layer synchronous sampler of claim 1, wherein: the upper piston limit baffle (11) is of a plate-shaped structure with a hollowed-out center, the periphery of the upper piston limit baffle (11) is connected with the inner wall of the piston guide pipe (4), and the piston traction rod (6) penetrates through the upper piston limit baffle (11) through the hollowed-out center part and can move up and down in the hollowed-out center part of the upper piston limit baffle (11).
CN201710594474.7A 2017-07-20 2017-07-20 High-low layer synchronous sampler for barreled gravure printing ink Active CN107449637B (en)

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* Cited by examiner, † Cited by third party
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CN110361227A (en) * 2019-07-08 2019-10-22 河海大学 Laboratory sediment settlement tests micro-disturbance sampler
CN110749472A (en) * 2019-09-20 2020-02-04 河海大学 Sediment sedimentation experiment sampling device
CN114625190B (en) * 2022-03-19 2023-03-14 江苏新瑞药业有限公司 Temperature measurement and adjustment method for preparing polypeptide complex

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2748637Y (en) * 2004-06-09 2005-12-28 中国石化胜利油田有限公司孤岛采油厂 Hydraulic low shearing sampler
CN203490111U (en) * 2013-09-30 2014-03-19 潍坊金信达生物化工有限公司 Multilayer sampler of liquid raw material for producing biodiesel
CN103645069A (en) * 2013-12-26 2014-03-19 中国科学院南京地理与湖泊研究所 Vertical stratification water sample synchronous sampling device and sampling method thereof
CN204359563U (en) * 2014-12-30 2015-05-27 浙江省海洋水产研究所 A kind of hydrophore
CN105890925A (en) * 2015-08-26 2016-08-24 云南华联锌铟股份有限公司 Deep-trough ore pulp sampler
CN207066792U (en) * 2017-07-20 2018-03-02 广西真龙实业有限责任公司 A kind of high low layer synchronous sampler of barreled gravure printing ink

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6697740B2 (en) * 2002-02-19 2004-02-24 William G. Smith Method and system for real-time control of sampling instruments in a batch operation
KR101168046B1 (en) * 2010-08-09 2012-07-24 한국지질자원연구원 Apparatus and method for groundwater sampling using hydraulic coupler
US20140182836A1 (en) * 2013-01-02 2014-07-03 Cyrus Aspi Irani Apparatus for Collecting a Representative Fluid Sample

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2748637Y (en) * 2004-06-09 2005-12-28 中国石化胜利油田有限公司孤岛采油厂 Hydraulic low shearing sampler
CN203490111U (en) * 2013-09-30 2014-03-19 潍坊金信达生物化工有限公司 Multilayer sampler of liquid raw material for producing biodiesel
CN103645069A (en) * 2013-12-26 2014-03-19 中国科学院南京地理与湖泊研究所 Vertical stratification water sample synchronous sampling device and sampling method thereof
CN204359563U (en) * 2014-12-30 2015-05-27 浙江省海洋水产研究所 A kind of hydrophore
CN105890925A (en) * 2015-08-26 2016-08-24 云南华联锌铟股份有限公司 Deep-trough ore pulp sampler
CN207066792U (en) * 2017-07-20 2018-03-02 广西真龙实业有限责任公司 A kind of high low layer synchronous sampler of barreled gravure printing ink

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Colorimetric properties of reversible thermochromic printing inks;Rahela Kulcar et al;Dyes and Pigments;第86卷;第271-277页 *
天然气水合物孔底冷冻取样器储冷腔的设计与试验研究;陈光华 等;探矿工程;第43卷(第10期);第182-187页 *
孔内活塞式定深取样(水)器;罗伟民;探矿工程(岩土钻掘工程)(第02期);第48页 *

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