Conductive slurry laser particle analyzer capable of increasing photosensitive area

Abstract

The invention relates to the technical field of laser particle size analyzers, in particular to a conductive paste laser particle size analyzer capable of increasing the photosensitive area, which comprises a detection mechanism, a light-transmitting sample storage barrel arranged in the detection mechanism, a light supplementing assembly mounted in the detection mechanism, and a brightness enhancing mechanism mounted on the light supplementing assembly, the curvature adjusting mechanism is mounted on the brightness enhancing mechanism; the energy supply driving mechanism is mounted on the curvature adjusting mechanism; a laser is arranged in the detection mechanism, and a light source of the laser directly irradiates the front surface of the light-transmitting sample storage barrel. The brightness enhancing mechanism is arranged in the detection mechanism, so that after a sample carrier is placed in an inner cavity of a light-transmitting sample storage barrel, a flexible reflecting plate positioned on the back surface of the light-transmitting sample storage barrel can be matched with light rays projected by a laser to carry out concentrated light supplement on a conductive slurry sample; the detection precision of the carbon nano tube and the graphene in the slurry in a high exposure state is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser particle size analyzers, and particularly to a conductive paste laser particle size analyzer capable of improving light receiving area. BACKGROUND

[0002] A laser particle size analyzer is used to test particle size distribution according to the physical phenomenon that particles can cause laser scattering. In the process of light propagation, the wave front is limited by gaps or particles with a wavelength scale, and the emission of each wavelet at the limited wave front interferes in space to produce diffraction and scattering. The spatial (angle) distribution of diffraction and scattering light energy is related to the wavelength of the light wave and the scale of the gap or particle.

[0003] During the detection of a conductive paste sample by a laser particle size analyzer, the instrument is affected by the operating environment. Although the light source path in the instrument can be protected from dust, the sample carrier is frequently disassembled and assembled, and the pollution sources in the environment can cause pollution to the sample storage carrier, thereby reducing the light transmittance of the paste and seriously affecting the real-time detection accuracy of the paste.

[0004] In view of this, a conductive paste laser particle size analyzer capable of improving light receiving area is designed to solve the above problems. SUMMARY

[0005] The present application aims to solve one of the technical problems in the prior art or related art.

[0006] To this end, the technical solution adopted by the present application is as follows: A conductive paste laser particle size analyzer capable of improving light receiving area, comprising a detection mechanism, a light-transmitting sample storage cylinder arranged in the detection mechanism, a light supplementing assembly installed in the detection mechanism, a brightness enhancing mechanism installed on the light supplementing assembly, a curvature adjusting mechanism installed on the brightness enhancing mechanism, and an energy supply driving mechanism installed on the curvature adjusting mechanism; a laser is arranged in the detection mechanism, and the light source of the laser directly irradiates the front surface of the light-transmitting sample storage cylinder; the detection mechanism comprises two support plates fixedly installed in the inner cavity of the particle size analyzer body; the brightness enhancing mechanism comprises an end rod movably installed in the middle of the two support plates, a wheel disc fixedly installed on the outside of the end rod, a load-bearing frame fixedly installed on the outside of the wheel disc, a protective pad arranged at the other end of the load-bearing frame, a flexible reflector plate installed on the outside of the protective pad, and the flexible reflector plate is located at the back of the light-transmitting sample storage cylinder; two trusses are fixedly installed at both ends of the flexible reflector plate, a connecting rod is installed in the truss, and a stud is installed at the bottom end of the connecting rod; the curvature adjusting mechanism comprises a fixed frame arranged at the bottom of the protective pad, a baffle fixedly installed at the top of the fixed frame, two bottom track plates fixedly installed at both ends of the fixed frame, a top track plate fixedly installed at the top of the bottom track plate, and an extension spring arranged in the bottom track plate; the stud is movably installed on the inner side of the bottom track plate, and one end of the extension spring is adapted to bear on the stud.

[0007] The particle size instrument body is further provided with an end column fixedly installed at the bottom of the inner cavity of the particle size instrument body, and a screw rod movably installed in the particle size instrument body and inserted into a hole at the top end of the end column. The particle size instrument body is further provided with two light shielding plates symmetrically installed inside the particle size instrument body and on both sides of the light transmission sample storage cylinder.

[0008] The surface of the light shielding plate is coated with a black light shielding coating.

[0009] The light supplement assembly comprises a base fixedly installed inside the particle size instrument body, a horizontal groove formed at the bottom of the base, a shaft rod movably installed in the middle of the horizontal groove, a beam plate installed outside the shaft rod, a light supplement mirror fixedly installed in a slot at the outer end of the beam plate, and two reset tension springs fixedly installed at the bottom of the beam plate. The other end of the reset tension spring is fixedly installed at the bottom of the inner cavity of the particle size instrument body.

[0010] The protective pad is further provided with four first screw posts and four second screw posts symmetrically arranged thereon. The load bearing frame is installed on the four first screw posts, and the protective pad is further provided with two clamps fixedly installed outside the protective pad. The baffle is installed on the four second screw posts.

[0011] The two ends of the fixing frame are further provided with two installation columns symmetrically installed thereon, the inside of the installation column is further provided with a connecting rod, the top of the connecting rod is further provided with a guide piece, and the inside of the guide piece is further provided with an arc-shaped gasket. The clamp is further provided with a cable, and the cable is adapted to be inserted into the gap of the guide piece and the arc-shaped gasket.

[0012] The energy supply driving mechanism comprises two guide columns fixedly installed outside the fixing frame, a guide rod fixedly installed inside the guide column, a top pad fixedly installed at the top end of the guide rod, a bearing installed in the top pad, a support rod installed in the bearing, a nut installed on the threaded section of the support rod, a winding roller fixedly installed outside the support rod, and a gear fixedly installed at the bottom of the winding roller. The winding roller is used for winding the cable.

[0013] The inside of the top pad is further provided with a lead pad, and the inside of the lead pad is further provided with two clamps symmetrically installed thereon. The clamps are used for guiding the cable.

[0014] In a preferred embodiment, the present invention may be further configured such that the power supply drive mechanism further includes two sets of clamps fixedly installed outside one of the guide rods and a motor fixedly installed inside the two sets of clamps; The top end of the internal drive shaft of the motor is provided with an insertion hole, and the bottom end of the support rod is provided with an insertion rod, which is adapted to pass through the insertion hole.

[0015] In a preferred embodiment, the present invention may be further configured such that: the outer side of the wheel is provided with ring teeth, and the ring teeth on the outer side of the wheel are adapted to mesh with the threaded section of the screw.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. The present invention sets up a brightness enhancement mechanism inside the detection mechanism. When the sample carrier is placed in the inner cavity of the light-transmitting sample storage cylinder, the flexible reflector located on the back of the light-transmitting sample storage cylinder can work with the light projected by the laser to provide concentrated supplementary light to the conductive slurry sample, thereby improving the detection accuracy of carbon nanotubes and graphene in the slurry under high exposure conditions.

[0017] 2. The present invention controls the curvature adjustment of the flexible reflector through a curvature adjustment mechanism. When the sample volume is small and the light-receiving area inside the light-transmitting sample storage tube is reduced, the bent flexible reflector can concentrate and reflect the light source emitted by the laser, and finally further supplement the light treatment of the conductive slurry with small volume, thereby ensuring that slurry samples with different volumes can be accurately detected by the high-sensitivity instrument.

[0018] 3. This invention adjusts the brightness enhancement mechanism by raising and lowering it longitudinally. When the curvature of the flexible reflector is adjusted, the longitudinally lowering flexible reflector will push the beam and the supplementary light mirror at its outer end to enhance the light source of the sample in the light-transmitting sample storage cylinder upward, thereby increasing the photosensitive area of ​​slurry samples with different concentration gradients. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is a partial perspective view of the present invention; Figure 3 This is a cross-sectional schematic diagram of the particle size analyzer body of the present invention; Figure 4 This is an exploded view of the supplementary lighting component of the present invention; Figure 5 This is an exploded view of the brightness enhancement mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is an exploded view of the curvature adjustment mechanism of the present invention; Figure 8 The present application Figure 7 Enlarged schematic view at B in the present application; Figure 9 Explosive schematic view of the energy supply driving mechanism of the present application.

[0020] Reference signs: 100, detection mechanism; 110, particle size instrument body; 1101, support plate; 1102, end column; 120, screw rod; 130, light shield plate; 200, light transmission sample storage cylinder; 300, light supplement assembly; 310, base; 3101, shaft rod; 320, beam plate; 330, light supplement mirror; 340, reset tension spring; 400, brightness enhancement mechanism; 410, end rod; 4101, wheel disc; 4102, bearing frame; 420, protective pad; 4201, first stud; 4202, second stud; 4203, chuck; 430, flexible light reflecting plate; 440, truss; 4401, connecting rod; 4402, column head; 500, curvature adjustment mechanism; 510, baffle; 5101, fixing frame; 5102, mounting column; 5103, bottom track plate; 5104, top track plate; 520, lengthening spring; 530, connecting rod; 540, guide piece; 5401, arc-shaped gasket; 550, cable; 600, energy supply driving mechanism; 610, guide column; 6101, guide rod; 6102, top pad; 6103, bearing; 6104, support rod; 6105, nut; 620, motor; 6201, clamp; 630, lead pad plate; 6301, clamping piece; 640, winding roller; 6401, gear. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to the specific embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] It is understood that the above description is only exemplary and is not intended to limit the scope of the present application.

[0023] Some embodiments of the present application provide a conductive paste laser particle size instrument capable of improving the photosensitive area, which will be described below in combination with the accompanying drawings.

[0024] Embodiment 1: In combination with Figures 1 to 9As shown, the present application provides a conductive paste laser particle size analyzer capable of improving the photosensitive area, which comprises a detection mechanism 100, a light transmission sample storage cylinder 200 arranged in the detection mechanism 100, a light supplement assembly 300 installed in the detection mechanism 100, a brightness enhancement mechanism 400 installed on the light supplement assembly 300, a curvature adjustment mechanism 500 installed on the brightness enhancement mechanism 400, and an energy supply driving mechanism 600 installed on the curvature adjustment mechanism 500. The detection mechanism 100 is used for detecting the sample carrier placed in the light transmission sample storage cylinder 200. The light supplement assembly 300 is used for light supplement detection of a small amount of high-concentration sample. The brightness enhancement mechanism 400 is used for efficient light supplement of the paste sample, improving the detection accuracy. The curvature adjustment mechanism 500 is used for adjusting the brightness and range of the light supplement of the brightness enhancement mechanism 400. The energy supply driving mechanism 600 is used for providing the curvature adjustment kinetic energy for the brightness enhancement mechanism 400.

[0025] The inside of the detection mechanism 100 is provided with a laser, and the light source of the laser directly irradiates the front surface of the light transmission sample storage cylinder 200; The detection mechanism 100 comprises two supporting plates 1101 fixedly installed in the inner cavity of a particle size analyzer body 110. An end column 1102 is fixedly installed at the bottom of the inner cavity of the particle size analyzer body 110. A screw rod 120 is movably installed in the particle size analyzer body 110, and the bottom end of the screw rod 120 is inserted into the hole at the top end of the end column 1102. The inside of the particle size analyzer body 110 is fixedly installed with two light shielding plates 130 symmetrically distributed, and the two light shielding plates 130 are installed on both sides of the light transmission sample storage cylinder 200. The surface of the light shielding plate 130 is coated with a black light blocking coating. The brightness enhancement mechanism 400 comprises an end rod 410 movably installed in the middle of the two supporting plates 1101, a wheel disc 4101 fixedly installed on the outside of the end rod 410, a load-bearing frame 4102 fixedly installed on the outside of the wheel disc 4101, a protective pad 420 arranged at the other end of the load-bearing frame 4102, a flexible reflective plate 430 installed on the outside of the protective pad 420, and the flexible reflective plate 430 is located at the back of the light transmission sample storage cylinder 200. The outside of the wheel disc 4101 is provided with ring teeth, and the ring teeth on the outside of the wheel disc 4101 are adapted to engage with the threaded section of the screw rod 120. Both ends of the flexible reflective plate 430 are fixedly installed with trusses 440. The inside of the truss 440 is installed with a connecting rod 4401, and the bottom end of the connecting rod 4401 is installed with a stud 4402. The curvature adjusting mechanism 500 comprises a fixing frame 5101 arranged at the bottom of the protective pad 420, a baffle 510 fixedly installed at the top of the fixing frame 5101, two bottom track plates 5103 fixedly installed at the two ends of the fixing frame 5101, a top track plate 5104 fixedly installed at the top of the bottom track plate 5103, and an elongated spring 520 arranged in the bottom track plate 5103; The post head 4402 is movably installed at the inner side of the bottom track plate 5103, and one end of the elongated spring 520 is adapted to bear on the post head 4402; The energy supply driving mechanism 600 comprises two guide columns 610 fixedly installed outside the fixing frame 5101, a guide rod 6101 fixedly installed in the guide column 610, a top pad 6102 fixedly installed at the top end of the guide rod 6101, a bearing 6103 installed in the top pad 6102, a support rod 6104 installed in the bearing 6103, a nut 6105 installed on the threaded section of the support rod 6104, a winding roller 640 fixedly installed outside the support rod 6104, a gear 6401 fixedly installed at the bottom of the winding roller 640, two sets of clamps 6201 fixedly installed outside one of the guide rods 6101, and a motor 620 fixedly installed in the two sets of clamps 6201. The inner side of the top pad 6102 is fixedly installed with a lead pad 630, and the inner side of the lead pad 630 is fixedly installed with two symmetrically distributed clamps 6301. The top end of the transmission shaft in the motor 620 is provided with a socket, and the bottom end of the support rod 6104 is provided with a plug rod which is adapted to penetrate into the socket.

[0026] When the conductive paste and its carrier are placed inside the light-transmitting sample storage cylinder 200, the light emitted by the laser inside the particle size instrument body 110 passes through the lens and irradiates the front surface of the light-transmitting sample storage cylinder 200, and the light-transmitting sample storage cylinder 200 under the shielding protection of the two light shields 130 can cooperate with the directly irradiated light to detect the paste carrier; At this time, the light source passing through the light-transmitting sample storage cylinder 200 will be reflected by the inner side of the curved surface of the flexible reflecting plate 430, and the gathered light source after reflection can perform high light compensation detection on the carrier and the paste in the inner cavity of the light-transmitting sample storage cylinder 200. As the hexagonal end head at the top of the screw rod 120 is rotated, the threaded section thereof will help the wheel disc 4101 and the bearing frame 4102 to be angularly adjusted in the longitudinal direction. Therefore, the flexible reflecting plate 430 which is bent after being adjusted in angle can perform efficient light compensation detection on the carrier inside the light-transmitting sample storage cylinder 200, thereby improving the accuracy of the detection of the paste in the carrier.

[0027] Example 2: In combination Figure 3 , Figure 4 and Figure 9As shown, on the basis of Embodiment 1, the light supplement assembly 300 comprises a base 310 fixedly installed inside the particle size analyzer body 110, and a horizontal groove is formed in the bottom of the base 310, a shaft 3101 is movably installed in the middle of the horizontal groove, a beam plate 320 is installed outside the shaft 3101, a light supplement mirror 330 is fixedly installed in the notch at the outer end of the beam plate 320, and two reset tension springs 340 are fixedly installed at the bottom of the beam plate 320. The other end of the reset tension spring 340 is fixedly installed on the bottom of the inner cavity of the particle size analyzer body 110.

[0028] Preferably, one end of the beam plate 320 towards the energy supply driving mechanism 600 is in a Z-shaped structure, and the Z-shaped end head is adapted to fit the bottom of the two guide columns 610, and the other end of the beam plate 320 is elastically pulled by the two reset tension springs 340, so that the beam plate 320 and the light supplement mirror 330 are parallel to the bottom of the inner cavity of the particle size analyzer body 110 in the initial state. Specifically, after the two guide columns 610 are pressed to descend, the beam plate 320 pressed by the guide columns 610 will be tilted along the shaft 3101 as the axis, and finally the top surface of the light supplement mirror 330 will be angle-adjusted with the sample carrier in the light transmission sample storage cylinder 200, at which time the high-concentration slurry can be further light-supplemented.

[0029] Embodiment 3: As shown in FIG. X, in the above embodiments, the gasket 420 is provided with four first studs 4201 and four second studs 4202 uniformly distributed thereon; The load-bearing frame 4102 is installed on the four first studs 4201, and the gasket 420 is fixedly installed with two collets 4203 outside. The baffle 510 is installed on the four second studs 4202.

[0030] Preferably, the back of the flexible reflective plate 430 is fixed on the gasket 420 by adhesion, and the two trusses 440 are fixedly installed at the two ends of the gasket 420. Specifically, the gasket 420 will be relatively bent along the load-bearing frame 4102 as the center after being pressed at the two ends, so that the flexible reflective plate 430 pressed and deformed by the two ends of the gasket 420 can concentrate the light source passing through the light transmission sample storage cylinder 200, thereby ensuring that the sample in the light transmission sample storage cylinder 200 can increase the area of photosensitive detection.

[0031] The two ends of the fixing frame 5101 are fixedly installed with two symmetrically distributed mounting columns 5102, the inside of the mounting column 5102 is fixedly installed with a connecting rod 530, the top of the connecting rod 530 is installed with a guide piece 540, and the inside of the guide piece 540 is fixedly installed with an arc-shaped gasket 5401. The pull cable 550 is connected to the clamp head 4203 and is adapted to pass through the gap of the guide 540 and the arc-shaped gasket 5401; The winding roller 640 is used for winding the pull cable 550, and the clamping piece 6301 is used for guiding the pull cable 550.

[0032] When the motor 620 is started and runs, one of the supporting rods 6104 driven by the motor 620 drives one of the winding rollers 640 and the gear 6401, and after the two gears 6401 are bonded to rotate, the two winding rollers 640 distributed symmetrically are driven to wind the two pull cables 550, and finally the two pull cables 550 are tightened to straighten the flexible reflective plate 430, and the flexible reflective plate 430 is straightened to further increase the light supplement area of the low-concentration sample, and the light intensity is supplemented by adjusting the bending degree and the inclination state of the flexible reflective plate 430 for the sample carrier with different concentration gradients.

[0033] The working principle and use process of the present application are as follows: when the conductive paste is installed in the light-transmitting sample storage cylinder 200 through the storage carrier, the flexible reflective plate 430 in the initial state is in a flat plate structure, and at this time, the flexible reflective plate 430 is parallel to the fixed frame 5101. When the laser in the detection mechanism 100 is powered on and releases light, the rays emitted through the lens are directly incident on the front surface of the light-transmitting sample storage cylinder 200, and the rays transmitted through the light-transmitting sample storage cylinder 200 are directly detected on the internal paste storage carrier; In order to improve the photosensitive area of the rays transmitted through the light-transmitting sample storage cylinder 200 and the storage carrier and detected on the conductive paste, the screw 120 is adjusted in advance, and the threaded section of the screw 120 drives the wheel disc 4101 and the bearing frame 4102 to perform longitudinal tilting, at this time, the bearing frame 4102 and the wheel disc 4101 are angle-regulated around the end rod 410 as the axis, and the flexible reflective plate 430 in the flat plate structure can reflect the light to the other side of the light-transmitting sample storage cylinder 200 and supplement the light on the internal storage carrier, when the bottom end of the flexible reflective plate 430 descends and exerts pressure on the outer end of the beam plate 320, the other end of the beam plate 320 and the fixed light supplement mirror 330 are reversely raised in cooperation with the descent of the flexible reflective plate 430, at this time, the front surface of the flexible reflective plate 430 and the top surface of the light supplement mirror 330 can fully supplement the light on the conductive paste, so as to improve the clarity of the detection of carbon nanotubes and graphene in the paste; When the sample amount is small, and the light source irradiation area projected by the laser is enlarged by the lens, the accuracy of the light transmission detection of the small sample will be reduced. At this time, the motor 620 is started through the cloud until the transmission shaft in the motor 620 drives one of the two supporting rods 6104 to rotate, and the two gears 6401 installed on the two supporting rods 6104 rotate at the same speed and in opposite directions, until the two winding rollers 640 slowly release the two cables 550. With the relaxation of the two cables 550, the two extension springs 520 will push the stud 4402, the connecting rod 4401 and the truss 440 to approach the light transmission sample storage cylinder 200. Finally, the flexible reflector 430 will gradually deform into a semicircular structure under pressure, and the light source passing through the light transmission sample storage cylinder 200 will be bent and concentrated by the flexible reflector 430. After reflection, the reflected light source cooperates with the fill light mirror 330 to enhance the light source of the small sample, so that the small sample can be accurately detected.

[0034] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A conductive paste laser particle size analyzer capable of increasing the photosensitive area, comprising a detection mechanism (100) and a light-transmitting sample storage cylinder (200) arranged in the detection mechanism (100), characterized in that, Also include the light supplement assembly (300) installed in the detection mechanism (100), the brightness enhancement mechanism (400) installed on the light supplement assembly (300), the curvature adjustment mechanism (500) installed on the brightness enhancement mechanism (400) and the energy supply driving mechanism (600) installed on the curvature adjustment mechanism (500); The inside of the detection mechanism (100) is provided with a laser, and the light source of the laser directly irradiates the front of the light transmission sample storage cylinder (200); The brightness enhancement mechanism (400) includes an end rod (410), a wheel disc (4101) fixedly installed outside the end rod (410), and a bearing frame (4102) fixedly installed outside the wheel disc (4101), one end of the bearing frame (4102) is provided with a protective pad (420), and the outside of the protective pad (420) is installed with a flexible reflector (430), and the flexible reflector (430) is located at the back of the light transmission sample storage cylinder (200); The curvature adjustment mechanism (500) includes a fixed frame (5101) arranged at the bottom of the protective pad (420), a baffle (510) fixedly installed at the top of the fixed frame (5101), two bottom track plates (5103) fixedly installed at both ends of the fixed frame (5101), a top track plate (5104) fixedly installed at the top of (4103), and a lengthening spring (520) arranged in the inside of the bottom track plate (5103).

2. The conductive paste laser particle size analyzer capable of increasing the photosensitive area according to claim 1, characterized in that, The detection mechanism (100) includes two supporting plates (1101) fixedly installed in the inner cavity of the particle size instrument body (110); the end rod (410) is movably installed at the middle of the two supporting plates (1101); The bottom of the inner cavity of the particle size instrument body (110) is fixedly installed with an end column (1102), and the particle size instrument body (110) is movably installed with a screw rod (120), and the bottom end of the screw rod (120) is inserted into the hole at the top end of the end column (1102); The inside of the particle size instrument body (110) is fixedly installed with two symmetrical light shielding plates (130), and the two light shielding plates (130) are installed on both sides of the light transmission sample storage cylinder (200).

3. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 2, characterized in that, The surface of the light shielding plate (130) is coated with a black light blocking coating.

4. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 1, characterized in that, The light supplement assembly (300) includes a base (310) fixedly installed in the inner cavity of the particle size instrument body (110), and the bottom of the base (310) is provided with a horizontal groove, a shaft rod (3101) movably installed in the middle of the horizontal groove, and a beam plate (320) installed outside the shaft rod (3101), a light supplement mirror (330) fixedly installed in the notch at the outer end of the beam plate (320), and two reset tension springs (340) fixedly installed at the bottom of the beam plate (320); The other end of the reset tension spring (340) is fixedly installed at the bottom of the inner cavity of the particle size instrument body (110).

5. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 1, characterized in that, Both ends of the flexible reflector (430) are fixedly installed with trusses (440), the inside of the truss (440) is installed with a connecting rod (4401), the bottom end of the connecting rod (4401) is installed with a stud (4402); the stud (4402) is movably installed on the inside of the bottom track plate (5103), and one end of the lengthened spring (520) is adapted to bear on the stud (4402).

6. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 1, characterized in that, The protective pad (420) is provided with four first studs (4201) and four second studs (4202) uniformly distributed thereon; The load-bearing frame (4102) is installed on the four first studs (4201), and the protective pad (420) is fixedly installed with two collets (4203) on the outside thereof; The baffle (510) is installed on the four second studs (4202).

7. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 6, characterized in that, Both ends of the fixed frame (5101) are fixedly installed with two mounting columns (5102) symmetrically distributed, the inside of the mounting column (5102) is fixedly installed with a connecting rod (530), the top of the connecting rod (530) is installed with a guide piece (540), and the inside of the guide piece (540) is fixedly installed with an arc-shaped gasket (5401); The collet (4203) is connected with a cable (550), and the cable (550) is adapted to penetrate into the gap of the guide piece (540) and the arc-shaped gasket (5401).

8. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 1, characterized in that, The energy supply driving mechanism (600) comprises two guide columns (610) fixedly installed on the outside of the fixed frame (5101), a guide rod (6101) fixedly installed in the guide column (610), a top pad (6102) fixedly installed at the top end of the guide rod (6101), a bearing (6103) installed in the top pad (6102), a support rod (6104) installed in the bearing (6103), a nut (6105) installed on the threaded section of the support rod (6104), a winding roller (640) fixedly installed on the outside of the support rod (6104), and a gear (6401) fixedly installed at the bottom of the winding roller (640).

9. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 8, characterized in that, The inside of the top pad (6102) is fixedly installed with a lead pad (630), and the inside of the lead pad (630) is fixedly installed with two clamping pieces (6301) symmetrically distributed.

10. The conductive paste laser particle size analyzer capable of increasing the light sensitive area according to claim 8, characterized in that, The energy supply driving mechanism (600) further comprises two groups of clamps (6201) fixedly installed on the outside of one of the guide rods (6101) and a motor (620) fixedly installed in the two groups of clamps (6201). The top end of the transmission shaft in the motor (620) is provided with a socket, and the bottom end of the support rod (6104) is provided with a plug rod, and the plug rod is adapted to penetrate into the socket.

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