CN214953177U - Automatic capillary filling device for testing softening point and melting range of polycarbosilane - Google Patents
Automatic capillary filling device for testing softening point and melting range of polycarbosilane Download PDFInfo
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- CN214953177U CN214953177U CN202120722497.3U CN202120722497U CN214953177U CN 214953177 U CN214953177 U CN 214953177U CN 202120722497 U CN202120722497 U CN 202120722497U CN 214953177 U CN214953177 U CN 214953177U
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Abstract
The utility model discloses an automatic capillary filling device of polycarbosilane softening point and melting range test, including the capillary, still include the base, first cylinder, second cylinder and movable block and capillary mounting fixture, first cylinder fixed connection is in the top of base, and the movable block is connected with first cylinder, and this first cylinder can drive the movable block and reciprocate, and second cylinder and capillary mounting fixture all fix on the outside of movable block, and the second cylinder is connected with capillary mounting fixture, and the second cylinder can drive capillary mounting fixture and press from both sides tightly or loosen the capillary. By adopting the technical scheme, the automatic capillary tube filling device for testing the softening point and the melting range of polycarbosilane can be used for preparing capillary tube samples which are consistent in sample amount and tightly filled, accurate softening point and melting range can be obtained by using the capillary tube samples for testing, the repeatability is good, and manual operation errors can be reduced.
Description
Technical Field
The utility model relates to an automatic capillary filling device of polycarbosilane softening point and melting range test.
Background
Polycarbosilanes are organic high molecular polymers that melt similarly to chemicals, but do not have a fixed melting point as do chemicals, but rather have a wide melting temperature range, which is commonly referred to as the melting range. In general, the initial melting temperature, i.e., the temperature at which melting begins, is generally referred to as the softening point, and the final melting temperature, i.e., the temperature at which the material completely melts, is also referred to as the final melting point. The softening point of PCS is proportional to the molecular weight, the higher its softening point. The distribution width of the molecular weight influences the size of the melting range, so that the softening point and the melting range are important characteristic indexes of polycarbosilane, and accurate measurement of the softening point and the melting range is not only of great significance to the synthesis control of PCS, but also of great significance to subsequent processing application.
And testing the softening point and melting range of the PCS by adopting an automatic melting point instrument. The capillary tube is placed in a heating furnace and heated according to a preset starting temperature, a preset ending temperature and a preset temperature rising rate, a light beam emitted from a light source is emitted to a sample through a light channel, the sample generates light transmittance changes along with the temperature rising in the melting process, and the light intensity changes are recorded to obtain a melting curve.
The manner in which the capillaries are packed is critical to achieving accurate results in the testing of the softening point and melting range of the PCS. The loading of the samples should be consistent from capillary to capillary, and slight differences in sample loading may also result in differences in the softening point and melting range of the test. The filling tightness of the sample also affects the accuracy of the test result, and the sample is not filled tightly enough, so that the sample is collapsed and holes are generated in the melting process, and the sample is shrunk and bent, so that the measured softening point is lower.
Currently, there are three main ways of filling samples: firstly, inserting the open end of a capillary into a sample to fill the sample, and firstly, knocking the capillary on a hard surface by facing the open end of the capillary upwards to make the sample tight; the second mode is to tamp the capillary directly by a tamping rod; third, to make a reproducible sample, the capillary was dropped from a straight tube about 1 meter long and repeated several times until the sample entered the bottom of the capillary.
However, the following disadvantages exist in the several ways: the first sample preparation mode and the second sample preparation mode have the same problem, and are influenced by human operation factors, so that the repeatability of a measured softening point result is poor. This is because each person can strike different ways, and the strength, direction and frequency of the strikes are different. When the tamping rod is used for tamping, the tamping force of each person is inconsistent, so that the tightness degree of the filled samples is inconsistent, and the measured result repeatability is poor.
The third sample preparation method is to prepare samples with consistent tightness, but the sample preparation tightness is not enough, so that the samples are collapsed and holes are generated in the melting process, and the samples are shrunk and bent, so that the measured softening point is lower.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an automatic capillary filling device of polycarbosilane softening point and melting range test.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides an automatic capillary filling device of polycarbosilane softening point and melting range test, includes the capillary, still includes base, first cylinder, second cylinder and movable block and capillary mounting fixture, first cylinder fixed connection is in the top of base, the movable block is connected with first cylinder, and this first cylinder can drive the movable block and reciprocate, second cylinder and capillary mounting fixture are all fixed on the outside of movable block, the second cylinder is connected with capillary mounting fixture, and the second cylinder can drive capillary mounting fixture and press from both sides tightly or loosen the capillary.
Preferably, the capillary tube fixing clamp comprises a fixing seat, a clamping groove, a pressing plate and a spring, a plurality of jacks for inserting the capillary tubes are formed in the upper portion of the fixing seat, semi-arc grooves communicated with the jacks are formed in the lower portion of the fixing seat, the pressing plate is hinged to the fixing seat and kept away from one side of the clamping groove, an inner groove matched with the semi-arc grooves to form clamping capillary tubes is formed in the lower portion of the pressing plate, the clamping groove clamped with the moving block is formed in one side of the fixing seat, the spring is arranged between the pressing plate and the fixing seat, and the telescopic rod of the second air cylinder is fixed on the outer side face of the pressing plate.
Preferably, the cylinder body of the first cylinder is connected with the base through a longitudinal column, and the telescopic rod of the first cylinder is fixedly connected with the moving block.
Preferably, a linear guide groove is formed in the longitudinal column, and a guide block capable of moving up and down along the linear guide groove for book searching is arranged on the moving block.
Preferably, the cylinder body of the second cylinder is fixed on the moving block.
Preferably, a measuring groove for measuring the filling amount of the capillary tube is arranged on one side of the fixed seat, which is far away from the pressing plate.
Preferably, the air cylinder further comprises a PLC control system electrically connected with the first air cylinder and the second air cylinder. From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
1. the utility model provides an automatic capillary filling device of polycarbosilane softening point and melting range test, through adopting the capillary filling device that comprises base, first cylinder, second cylinder and movable block and capillary mounting fixture etc. combination, and this capillary mounting fixture includes fixing base, draw-in groove, clamp plate and spring, namely the fixing base passes through the draw-in groove joint on the movable block, put the capillary sample that initial filling is good into the capillary mounting fixture, the capillary mounting fixture passes through the draw-in groove behind the fixing base to be fixed on the movable block, PLC control system control first cylinder does the downward motion of first stage stroke 150mm, the second cylinder begins to do the motion of vertical direction when reaching the set point position of 150mm, will compress tightly the spring, make the capillary fall, then first cylinder continues to do the downward motion of second stage 50mm, when the movable block contacts with the up end of base, the second cylinder performs a reset action in the vertical direction to loosen the spring so as to fix the capillary tube on the fixed seat again; in the third program, the PLC control system controls the first air cylinder to operate, and the telescopic rod of the first air cylinder retracts to drive the capillary tube fixing clamp, the second air cylinder and the capillary tube to return to the starting point; the whole action is finished, the capillary tube is made to obtain a certain acceleration in the stroke of 150mm, then the capillary tube is made to perform acceleration falling motion, then the capillary tube falls on the hard surface of the stainless steel base at the same time, finally the capillary tube is driven to return to the starting point, the steps are repeated for 50 times, the capillary tube sample with consistent sample quantity and tight filling can be prepared, the capillary tube sample can be used for testing to obtain an accurate softening point and melting range, the repeatability is good, and the manual operation error can be reduced.
2. The utility model provides an automatic capillary filling device of polycarbosilane softening point and melting range test, through adopting the capillary mounting fixture that combines by fixing base, draw-in groove, clamp plate and spring etc. promptly the jack of fixing base is used for placing the capillary, and the clamp plate is mobilizable and can be used for blocking the capillary, and when compression spring, the inner groovy of clamp plate leaves the semi-circular arc groove of fixing base, and the capillary can freely pass jack and semi-circular arc groove this moment; when the spring loosens, the inner groovy of clamp plate can block the semicircle trough of fixing base, and the capillary just can be more firm fixing in the fixing base this moment, so can realize the fixed or whereabouts of capillary, and degree of automation is high, and provides the inspection line of multiple sample height, provides the inspection means of a reliability for making the unanimous capillary of sample volume.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a front view of an automatic capillary filling apparatus for polycarbosilane softening point and melting range testing in accordance with the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a left side view of an automatic capillary filling apparatus for polycarbosilane softening point and melting range testing in accordance with the present invention;
fig. 4 is a right side view of the fixing base of the automatic capillary filling device for testing softening point and melting range of polycarbosilane of the present invention.
In the figure: 1. a capillary tube; 2. a base; 3. a first cylinder; 4. a second cylinder; 51. a fixed seat; 51a, a jack; 51b, a semi-circular arc groove; 51c, measuring a groove; 52. a card slot; 53. pressing a plate; 53a, inner grooves; 54. a spring; 6. moving the mass.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples
Referring to fig. 1, 2, 3 and 4, an automatic capillary filling device for polycarbosilane softening point and melting range tests comprises a capillary 1, and further comprises a base 2, a first cylinder 3, a second cylinder 4, a moving block 6 and a capillary fixing clamp, wherein the first cylinder 3 is fixedly connected above the base 2, the moving block 6 is connected with the first cylinder 3, the first cylinder 3 can drive the moving block 6 to move up and down, the second cylinder 4 and the capillary fixing clamp are both fixed on the outer side of the moving block, the second cylinder 4 is connected with the capillary fixing clamp, and the second cylinder 4 can drive the capillary fixing clamp to clamp or loosen the capillary 1. The structure is adopted, namely, a capillary tube filling device formed by combining a base, a first air cylinder, a second air cylinder, a moving block, a capillary tube fixing clamp and the like is adopted, the capillary tube fixing clamp comprises a fixed seat, a clamping groove, a pressing plate and a spring, namely, the fixed seat is clamped on the moving block through the clamping groove, an initially filled capillary tube sample is placed in the capillary tube fixing clamp, the capillary tube fixing clamp is fixed on the moving block through the clamping groove behind the fixed seat, a PLC control system controls the first air cylinder to do downward movement with the stroke of 150mm in a first stage, when the set value position of 150mm is reached, the second air cylinder starts to do vertical movement, the pressing spring is used for enabling the capillary tube to fall down, then the first air cylinder continues to do downward movement with the stroke of 50mm in a second stage, when the moving block is contacted with the upper end face of the base, the second air cylinder does vertical reset action, so as to loosen the spring and fix the capillary on the fixed seat again; in the third program, the PLC control system controls the first air cylinder to operate, and the telescopic rod of the first air cylinder retracts to drive the capillary tube fixing clamp, the second air cylinder and the capillary tube to return to the starting point; after the whole action is finished, the capillary tube is accelerated to a certain degree in a stroke of 150mm, then the capillary tube is accelerated to perform falling motion, then the capillary tube falls on the hard surface of the stainless steel base at the same time, finally the capillary tube is driven to return to the starting point, and the steps are repeated for 50 times, so that the capillary tube sample with consistent sample amount and tight filling can be prepared.
Further, capillary tube mounting fixture includes fixing base 51, draw-in groove 52, clamp plate 53 and spring 54, a plurality of capillary male jacks 51a of confession have been seted up on fixing base 51's upper portion, the semicircle arc groove 51b that is linked together with the jack has been seted up on fixing base 51's the lower part, clamp plate 53 articulates on one side that fixing base 51 kept away from draw-in groove 52, be provided with on this clamp plate 53's the lower part and constitute joint capillary's inner groovy 53a with semicircle arc groove 51b cooperation, be provided with the draw-in groove with movable block 6 joint on fixing base 51's one side, spring 54 sets up between clamp plate 53 and fixing base 51, the lateral surface at clamp plate 53 is fixed to second cylinder 4's telescopic link. By adopting the structure, the capillary tube fixing clamp combined by the fixing seat, the clamping groove, the pressing plate, the spring and the like is adopted, namely, the jack of the fixing seat is used for placing the capillary tube, the pressing plate is movable and can be used for clamping the capillary tube, when the spring is pressed, the inner groove of the pressing plate is separated from the semi-arc groove of the fixing seat, and the capillary tube can freely pass through the jack and the semi-arc groove; when the spring is loosened, the inner groove of the pressing plate can clamp the semi-arc groove of the fixing seat, and the capillary can be firmly fixed in the fixing seat, so that the fixing or falling of the capillary can be realized, the automation degree is high, the inspection lines of various sample heights are provided, and a reliable inspection means is provided for manufacturing the capillary with consistent sample quantity; the number of the jacks can be 6, the sample preparation clamp can simultaneously fill 6 capillaries at most, the requirement of testing the number of common samples is met, the diameters of the jacks are 2mm, and the sample preparation clamp is suitable for sample preparation of capillaries with different specifications.
Further, the cylinder body of the first cylinder 3 is connected with the base 2 through a longitudinal column, and the telescopic rod of the first cylinder 3 is fixedly connected with the moving block 6.
Furthermore, a linear guide groove is formed in the longitudinal column, and a guide block capable of moving up and down along the linear guide groove for book searching is arranged on the moving block.
Further, the cylinder body of the second cylinder 4 is fixed on the moving block.
Further, a measuring groove 51c for measuring the filling amount of the capillary is provided on the side of the fixed base 51 away from the pressure plate 53. By adopting the structure, namely, the measuring groove is provided with a plurality of scale marks, the filling height of the capillary tube sample can be checked, and the consistency of the sample preparation filling amount is ensured. Wherein, if the height of the sample to be prepared is 5mm, the initial filling height of the sample is 8 mm; wherein, if the sample preparation height is 3mm, the initial filling height of the sample is 5 mm.
Furthermore, the device also comprises a PLC control system electrically connected with the first cylinder and the second cylinder. By adopting the structure, the PLC control system controls the operation of the first cylinder and the second cylinder.
It should be noted that electrical components appearing in this application all are connected with outside power, and first cylinder and second cylinder are connected with outside air supply, and the PLC control system adopts the structure among the prior art for the operation of control first cylinder, second cylinder.
When in use: the fixing base is clamped on the moving block through a clamping groove, a capillary sample which is initially loaded is placed in a capillary fixing clamp, the capillary fixing clamp is fixed on the moving block through the clamping groove in the back of the fixing base, the PLC control system controls the first air cylinder to do downward movement with the stroke of 150mm in the first stage, when the set value position of 150mm is reached, the second air cylinder starts to do vertical movement, the compression spring is pressed, the capillary falls, then the first air cylinder continues to do downward movement with the stroke of 50mm in the second stage, when the moving block is contacted with the upper end face of the base, the second air cylinder does vertical reset action, the spring is loosened, and the capillary is fixed on the fixing base again; in the third program, the PLC control system controls the first air cylinder to operate, and the telescopic rod of the first air cylinder retracts to drive the capillary tube fixing clamp, the second air cylinder and the capillary tube to return to the starting point; after the whole action is finished, the capillary tube is accelerated to a certain degree in a stroke of 150mm, then the capillary tube is accelerated to perform falling motion, then the capillary tube falls on the hard surface of the stainless steel base at the same time, finally the capillary tube is driven to return to the starting point, and the steps are repeated for 50 times, so that the capillary tube sample with consistent sample amount and tight filling can be prepared.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides an automatic capillary filling device of polycarbosilane softening point and melting range test, includes capillary (1), its characterized in that: still include base (2), first cylinder (3), second cylinder (4) and movable block (6) and capillary mounting fixture, first cylinder (3) fixed connection is in the top of base (2), movable block (6) are connected with first cylinder (3), and this first cylinder (3) can drive movable block (6) and reciprocate, second cylinder (4) and capillary mounting fixture are all fixed on the outside of movable block, second cylinder (4) are connected with capillary mounting fixture, and second cylinder (4) can drive capillary mounting fixture and press from both sides tightly or loosen capillary (1).
2. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 1, wherein: capillary mounting fixture includes fixing base (51), draw-in groove (52), clamp plate (53) and spring (54), a plurality of confession capillary male jack (51a) have been seted up on the upper portion of fixing base (51), semicircular arc groove (51b) that are linked together with the jack have been seted up on the lower part of fixing base (51), clamp plate (53) articulate and keep away from in fixing base (51) on one side of draw-in groove (52), be provided with on the lower part of this clamp plate (53) with semicircular arc groove (51b) cooperation constitution joint capillary's inner groovy (53a), be provided with the draw-in groove with movable block (6) joint on one side of fixing base (51), spring (54) set up between clamp plate (53) and fixing base (51), the lateral surface at clamp plate (53) is fixed to the telescopic link of second cylinder (4).
3. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 1, wherein: the cylinder body of the first cylinder (3) is connected with the base (2) through a longitudinal column, and the telescopic rod of the first cylinder (3) is fixedly connected with the moving block (6).
4. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 3, wherein: the longitudinal column is provided with a linear guide groove, and the moving block is provided with a guide block capable of moving up and down along the linear guide groove for book searching.
5. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 1, wherein: and the cylinder body of the second cylinder (4) is fixed on the moving block.
6. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 2, wherein: and a measuring groove (51c) for measuring the capillary filling amount is arranged on one side of the fixed seat (51) far away from the pressure plate (53).
7. The automatic capillary filling apparatus for polycarbosilane softening point and melting range testing of claim 1, wherein: the device also comprises a PLC control system electrically connected with the first cylinder and the second cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120722497.3U CN214953177U (en) | 2021-04-09 | 2021-04-09 | Automatic capillary filling device for testing softening point and melting range of polycarbosilane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120722497.3U CN214953177U (en) | 2021-04-09 | 2021-04-09 | Automatic capillary filling device for testing softening point and melting range of polycarbosilane |
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| CN214953177U true CN214953177U (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511142A (en) * | 2023-05-08 | 2023-08-01 | 无锡日月合金材料有限公司 | Cleaning system for vacuum tube solder sheet |
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2021
- 2021-04-09 CN CN202120722497.3U patent/CN214953177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511142A (en) * | 2023-05-08 | 2023-08-01 | 无锡日月合金材料有限公司 | Cleaning system for vacuum tube solder sheet |
| CN116511142B (en) * | 2023-05-08 | 2023-11-10 | 无锡日月合金材料有限公司 | Cleaning system for vacuum tube solder sheet |
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