PEEK conductive composite particle antistatic detection system and working method thereof

Abstract

The present invention belongs to the field of measurement and testing technology, and specifically relates to a PEEK conductive composite particle antistatic detection system and a working method thereof. The PEEK conductive composite particle antistatic detection system comprises: an electrostatic sensor, which measures and sends electrostatic quantity data of a detection area in a drop tube; a control module, which is electrically connected to the electrostatic sensor and is configured to obtain the extension length data of a guide plate installed on an inner tube through the received electrostatic quantity data, and determine whether the conductive composite particles are qualified according to the extension length data. The PEEK conductive composite particle antistatic detection system obtains the electrostatic quantity data of the detection area through the electrostatic sensor in the drop tube, and adjusts the extension length of the guide plate according to the received electrostatic quantity data, so as to make the conductive composite particles fall at the fastest speed under the premise of ensuring that the antistatic property of the conductive composite particles is qualified.

Description

Technical Field

[0001] The invention belongs to the field of measurement and testing technology, and specifically relates to measuring the static electricity amount of solid materials, and more particularly to a PEEK conductive composite particle antistatic detection system and a working method thereof. Background Art

[0002] PEEK (polyetheretherketone) is a special engineering plastic with excellent performance. In some application scenarios, PEEK conductive composite particles need to be produced. Since PEEK conductive composite particles are widely used in scenarios with high requirements for electrostatic suppression, the electrostatic test of PEEK conductive composite particles is an important test to evaluate their quality.

[0003] After the above-mentioned conductive composite particles are produced, they need to be filled. However, there may be defective conductive composite particles produced (that is, the conductive composite particles have poor antistatic cumulative effect), so they need to be tested for antistatic properties. The traditional detection method is usually to rub the conductive composite particles with another material through a friction experiment, and then use an electrostatic potentiometer or coulometer to measure the potential or charge on the surface of the particles after friction. Although this method is more accurate, it cannot meet the needs of efficient detection in industrial production.

[0004] In the related art, electrostatic detection is usually performed simultaneously during the filling process of conductive composite particles. However, this detection method has another problem: during the filling process, friction occurs between particles and between particles and the tube wall. Therefore, it is impossible to accurately know whether the abnormal electrostatic data detected by the electrostatic sensor is due to additional frictional static electricity caused by filling or due to the poor anti-static property of the particles themselves.

[0005] Therefore, how to solve the problem that it is difficult to detect whether the antistatic property of the conductive composite particles is qualified during the filling process of the existing conductive composite particles is urgently needed to be solved by those skilled in the art.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0007] The embodiments of the present disclosure at least provide a PEEK conductive composite particle antistatic detection system and a working method thereof.

[0008] In a first aspect, an embodiment of the present disclosure provides an anti-static detection system for PEEK conductive composite particles, comprising: an electrostatic sensor, which measures and sends electrostatic quantity data of a detection area in a drop tube; a control module, which is electrically connected to the electrostatic sensor and configured to obtain extension length data of a guide plate installed on the inner tube through the received electrostatic quantity data, and determine whether the conductive composite particles are qualified based on the extension length data.

[0009] In one embodiment, the control module is configured to obtain the extension length data of the guide plate through the received electrostatic quantity data, that is,

[0010] ;

[0011] ;

[0012] Where Q is the electrostatic charge in the detection area, in coulombs; Q 颗粒 Q is the amount of static electricity in the conductive composite particles, in coulombs; 内管 is the static electricity on the inner tube, in coulombs; L is the extension length of the guide plate, in meters; k is the control coefficient; Q 0 is the threshold value of electrostatic charge in the conductive composite particle, in coulomb;

[0013] When the extension length data of the guide plate exceeds a threshold value, the conductive composite particles are determined to be unqualified.

[0014] In one of the embodiments, the PEEK conductive composite particle anti-static detection system also includes: a detection mechanism, which includes: an installation inner tube and a guide plate driver; wherein the installation inner tube is coaxially arranged in the drop tube, and a plurality of the guide plates are inserted on the installation inner tube, and the electrostatic sensor is located in the installation inner tube; the control module is electrically connected to the guide plate driver, and controls the extension distance of the guide plate according to the static electricity data of the detection area to regulate the falling speed of the conductive composite particles.

[0015] In one embodiment, the guide plates are arranged on the mounting inner tube along a radial sliding manner of the mounting inner tube, and each of the guide plates is evenly distributed along the axis of the mounting inner tube; wherein in an initial state, the outer end of the guide plate does not protrude from the side wall of the mounting inner tube.

[0016] In one embodiment, the guide plate is arranged at an angle; when the guide plate extends out of the mounting inner tube, the falling speed of the conductive composite particles is reduced by increasing the length of the falling channel of the conductive composite particles, that is, the static electricity amount in the detection area is reduced.

[0017] In one embodiment, the guide plate driver includes: a driving motor and a conical guide block; the conical guide block is arranged at the telescopic end of the driving motor, and the inclined side wall of the conical guide block abuts against the inner end of each guide plate.

[0018] In one embodiment, the control module controls the electrostatic sensor to periodically acquire static electricity data in a detection area in the drop tube.

[0019] In the second aspect, an embodiment of the present disclosure provides a working method of the PEEK conductive composite particle anti-static detection system as described above, which includes: obtaining static electricity quantity data of the detection area in the drop tube through an electrostatic sensor; obtaining the extension length data of the guide plate through the static electricity quantity data of the detection area, and determining whether the conductive composite particles are qualified based on the extension length data.

[0020] In one embodiment, when the extension length data of the guide plate exceeds a threshold value, the conductive composite particles are determined to be unqualified.

[0021] In a third aspect, an embodiment of the present disclosure provides an electronic device, which includes a control module and a memory storing computer executable instructions, wherein the executable instructions, when executed, cause the control module to perform the steps of the working method as described above.

[0022] The beneficial effect of the present invention is that the PEEK conductive composite particle antistatic detection system and its working method obtain the static electricity quantity data of the detection area through the static electricity sensor in the drop tube, and adjust the extension length of the guide plate according to the received static electricity quantity data, so as to make the conductive composite particles fall at the fastest speed while ensuring that the antistatic property of the conductive composite particles is qualified.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of a PEEK conductive composite particle antistatic detection system provided in an embodiment of the present disclosure;

[0027] Figure 2 A schematic structural diagram of a drop tube with a detection mechanism provided in an embodiment of the present disclosure;

[0028] Figure 3 A schematic diagram of the structure of a detection mechanism provided by an embodiment of the present disclosure when a guide plate is not extended;

[0029] Figure 4 A schematic diagram of the structure of a detection mechanism provided by an embodiment of the present disclosure when a guide plate is extended;

[0030] Figure 5 A schematic diagram of the structure of a guide plate provided in an embodiment of the present disclosure;

[0031] Figure 6 A schematic structural diagram of a conical guide block provided in an embodiment of the present disclosure.

[0032] In the figure:

[0033] Blanking pipe 1, annular blanking channel 11;

[0034] Detection mechanism 2, guide plate 21, mounting inner tube 22, conical guide block 23;

[0035] Silo 3. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] like Figures 1 to 4As shown, at least one embodiment provides a PEEK conductive composite particle anti-static detection system, which includes: an electrostatic sensor, which measures and sends the static electricity data of the detection area in the drop tube; a control module, which is electrically connected to the electrostatic sensor and is configured to obtain the extension length data of the guide plate installed on the inner tube through the received static electricity data, and determine whether the conductive composite particles are qualified based on the extension length data.

[0040] In some embodiments, a detection mechanism 2 is provided in the drop tube 1, and the detection mechanism 2 includes: an installation inner tube 22 and a guide plate driver; wherein the installation inner tube 22 is coaxially arranged in the drop tube 1, and an annular drop channel 11 is formed between the drop tube 1; several of the guide plates 21 are inserted on the installation inner tube 22, and the electrostatic sensor is located in the installation inner tube 22.

[0041] Specifically, the conductive composite particles are located in the silo 3, and during filling, they enter the corresponding container through the drop tube 1 connected to the silo 3; in the process of the conductive composite particles passing through the drop tube 1, static electricity will be generated between the conductive composite particles due to friction, and at the same time, the conductive composite particles will also rub against the installation inner tube 22, causing the installation inner tube 22 to be charged.

[0042] In some embodiments, the control module is configured to obtain the extension length data of the guide plate through the received electrostatic quantity data, that is,

[0043] ;

[0044] ;

[0045] Where Q is the electrostatic charge in the detection area, in coulombs; Q 颗粒 Q is the amount of static electricity in the conductive composite particles, in coulombs; 内管 is the static electricity on the inner tube, in coulombs; L is the extension length of the guide plate, in meters; k is the control coefficient; Q 0 is the static charge threshold within the conductive composite particle, in coulombs.

[0046] In some embodiments, when the protruding length data of the guide plate exceeds a threshold value, the conductive composite particles are determined to be unqualified.

[0047] Specifically, during the falling process of the conductive composite particles, the electrostatic sensor obtains the static electricity Q in the detection area. When the value of the static electricity Q exceeds the threshold value Q 0 When the electrostatic quantity Q includes Q 颗粒 and Q 内管 , so it is impossible to determine whether the antistatic property of the conductive composite particles is unqualified.

[0048] To this end, the control module controls the guide plate to extend a corresponding length according to the static electricity amount Q obtained in the detection area to reduce the falling speed of the conductive composite particles in the drop tube 1. After the speed is controlled, if the static electricity amount Q obtained by the electrostatic sensor does not exceed the threshold value Q 0 , it means that the conductive composite particles are qualified; if the static electricity Q obtained by the electrostatic sensor still exceeds the threshold Q 0 , the guide plate is continued to be extended to further reduce the falling speed of the conductive composite particles until the obtained static electricity Q does not exceed the threshold value Q 0 During the speed control process, if the guide plate extends beyond the threshold, it indicates that the guide plate is against the inner wall of the blanking tube 1, and the static electricity on the inner wall of the tube will flow away through the grounding of the blanking tube 1, making Q 内管 The value of is close to zero. At this time, the static electricity amount Q in the detection area is approximately equal to Q 颗粒 The value of Q, that is, the static electricity amount Q in the detection area exceeds the threshold value Q 0 It indicates that the conductive composite particles are unqualified and do not exceed the threshold value Q 0 This indicates that the conductive composite particles are qualified.

[0049] In some embodiments, if the device is just started, the guide plate is used to abut against the inner wall of the drop tube 1 for filling, although it can avoid more internal tube static electricity, i.e., Q 内管 However, this method will also cause some particles to carry static electricity, i.e., Q, due to the contact between the particles and the guide plate. 颗粒 The electrostatic discharge of particles is not conducive to the detection of particles and the increase of material feeding speed.

[0050] During the above-mentioned regulation process, the extension of several guide plates can make the conductive composite particles fall more evenly in the drop tube 1; at the same time, the guide plates are not directly controlled to offset the drop tube 1 in order to make the conductive composite particles fall at the fastest speed during the regulation process while ensuring that the conductive composite particles have qualified antistatic properties.

[0051] In one application scenario, Q 0 is 300nc, k is 0.0005m / nc.

[0052]

[0053] As shown in the table above, after the Q value is detected for the first time, the control module drives the guide plate to extend 0.1 meters according to the received data; after the Q value is detected for the second time, Q is greater than Q 0 , the guide plate extends 0.05 meters further on the basis of the first extension length, and the total extension length is 0.15 meters; after the Q value is detected for the fourth time, Q is less than Q 0, the guide plate retreats 0.0005 meters based on the third extension length, and the total extension length is 0.1645 meters; when the Q value is detected for the fifth time, Q is equal to Q 0 , the guide plate does not move; wherein, when the total extension length is equal to the threshold value, the guide plate abuts against the inner wall of the blanking tube 1.

[0054] like Figure 2 As shown, in some embodiments, the guide plate 21 is set on the mounting inner tube 22 along the radial sliding of the mounting inner tube 22, and each of the guide plates 21 is evenly distributed along the axis of the mounting inner tube 22; wherein in the initial state, the outer end of the guide plate 21 does not protrude from the side wall of the mounting inner tube 22.

[0055] like Figure 5 As shown, in some embodiments, the guide plate 21 is arranged at an angle; wherein when the guide plate 21 extends out of the mounting inner tube 22, the falling speed of the conductive composite particles is slowed down by increasing the falling distance of the conductive composite particles, that is, the amount of static electricity generated by the friction of the conductive composite particles is reduced.

[0056] Specifically, since the guide plate 21 is arranged at an angle, when the guide plate 21 is extended, the length of the annular drop channel 11 is changed, thereby slowing down the falling speed of the conductive composite particles.

[0057] like Figure 6 As shown, in some embodiments, the guide plate driver includes: a driving motor and a conical guide block 23; the conical guide block 23 is arranged at the telescopic end of the driving motor, and the inclined side wall of the conical guide block 23 abuts against the inner end of each guide plate 21.

[0058] At least one embodiment also provides a working method of the PEEK conductive composite particle anti-static detection system as described above, which includes: obtaining static electricity data of the detection area in the drop tube through an electrostatic sensor; obtaining the extension length data of the guide plate through the static electricity data of the detection area, and determining whether the conductive composite particles are qualified based on the extension length data.

[0059] In some embodiments, when the protruding length data of the guide plate exceeds a threshold value, the conductive composite particles are determined to be unqualified.

[0060] At least one embodiment further provides an electronic device, which includes a control module and a memory storing computer executable instructions, wherein the executable instructions, when executed, enable the control module to perform the steps of the above working method.

[0061] In summary, the PEEK conductive composite particle antistatic detection system and its working method obtain the static electricity data of the detection area through the static electricity sensor in the drop tube 1, and adjust the extension length of the guide plate 21 according to the received static electricity data, so as to make the conductive composite particles fall at the fastest speed while ensuring that the antistatic properties of the conductive composite particles are qualified.

[0062] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0063] In this article, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to another element or layer, or there may be intermediate elements or layers. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intermediate elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0064] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0065] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0066] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0067] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0069] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0070] In the above discussion, unless otherwise stated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0071] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A PEEK conductive composite particle antistatic detection system, characterized in that: include: The electrostatic sensor measures the static electricity data in the detection area of ​​the drop tube and sends it; A control module is electrically connected to the electrostatic sensor and is configured to obtain the extension length data of the guide plate installed on the inner tube through the received electrostatic quantity data, and determine whether the conductive composite particles are qualified according to the extension length data; The control module is configured to obtain the extension length data of the guide plate through the received electrostatic quantity data, that is, ； ； Among them, Q is the static electricity in the detection area, in coulombs; Qparticle is the static electricity in the conductive composite particle, in coulombs; Qinner tube is the static electricity on the installed inner tube, in coulombs; L is the extended length of the guide plate, in meters; k is the control coefficient; Q0 is the threshold value of the static electricity in the conductive composite particle, in coulombs; When the extension length data of the guide plate exceeds a threshold value, the conductive composite particles are judged to be unqualified; The PEEK conductive composite particle antistatic detection system also includes: The detection mechanism (2) comprises: an inner tube (22) and a guide plate driver; wherein The installation inner tube (22) is coaxially arranged in the blanking tube (1), a plurality of the guide plates (21) are inserted into the installation inner tube (22), and the electrostatic sensor is located in the installation inner tube (22); The control module is electrically connected to the guide plate driver, and controls the extension distance of the guide plate (21) according to the static electricity data of the detection area, so as to adjust the falling speed of the conductive composite particles; The guide plates (21) are slidably arranged on the installation inner tube (22) along the radial direction of the installation inner tube (22), and the guide plates (21) are evenly distributed along the axis of the installation inner tube (22); wherein In an initial state, the outer end of the guide plate (21) does not protrude from the side wall of the mounting inner tube (22).

2. The PEEK conductive composite particle antistatic detection system according to claim 1, characterized in that: The guide plate (21) is arranged obliquely; wherein When the guide plate (21) extends out of the mounting inner tube (22), the falling speed of the conductive composite particles is reduced by increasing the length of the falling channel of the conductive composite particles, that is, the static electricity amount in the detection area is reduced.

3. The PEEK conductive composite particle antistatic detection system according to claim 2, characterized in that: The guide plate driver comprises: a drive motor and a conical guide block (23); The conical guide block (23) is arranged at the telescopic end of the drive motor, and the inclined side wall of the conical guide block (23) abuts against the inner end of each guide plate (21).

4. The PEEK conductive composite particle antistatic detection system according to claim 1, characterized in that: The control module controls the electrostatic sensor to periodically acquire static electricity data in a detection area within the drop tube (1).

5. A working method of the PEEK conductive composite particle antistatic detection system according to any one of claims 1 to 4, characterized in that: include: Obtain static electricity data in the detection area of ​​the drop tube through an electrostatic sensor; The extension length data of the guide plate is obtained by detecting the static electricity data of the area, and whether the conductive composite particles are qualified is determined according to the extension length data.

6. The working method of the PEEK conductive composite particle antistatic detection system according to claim 5, characterized in that: When the extension length data of the guide plate exceeds a threshold value, the conductive composite particles are determined to be unqualified.

7. An electronic device, characterized in that: It comprises a control module and a memory storing computer executable instructions, wherein when the executable instructions are executed, the control module executes the steps of the working method according to claim 5 or 6.

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