Sampling device for polytetrafluoroethylene granular material

Abstract

The invention discloses a polytetrafluoroethylene granular material sampling device, which comprises a bottom plate, a lifting assembly, a telescopic cylinder, a top plate and a sliding plate, the upper end and the lower end of the lifting assembly are fixedly mounted on the bottom plate and the top plate respectively, moving wheels are arranged at four corners of the bottom of the bottom plate, and the sliding plate is slidably arranged at the top of the top plate. The telescopic air cylinders are symmetrically arranged on the two sides of the sliding plate, piston rods of the telescopic air cylinders are connected with the side wall of the sliding plate, and the sampling assembly is installed at one end of the sliding plate. The lifting assembly can drive the sampling assembly to move up and down, accumulated polytetrafluoroethylene particles can be conveniently sampled, a sampled sample can be conveniently unloaded, it is guaranteed that the device can sample the polytetrafluoroethylene particles with different depths through the arrangement of the multiple sampling rods, and the sampling efficiency and the sampling quality of the device are greatly guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of sampling, and in particular relates to a sampling device for polytetrafluoroethylene granular materials. Background Art

[0002] PTFE particles are a granular material made of polytetrafluoroethylene (PTFE) resin. PTFE is a synthetic polymer material that has excellent chemical stability, electrical insulation, low friction coefficient, self-lubrication, non-stick surface and other properties. It is widely used in various industrial and life fields. PTFE particles need to be sampled and tested after production to prevent unqualified PTFE particles from entering the market.

[0003] A Chinese patent with application number: 201821274302.8 disclosed a loose particle material sampling device, including a hard sampling tube, a soft sampling bag and a drawstring; the hard sampling tube is a cylindrical structure with openings at both ends, the soft sampling bag is fixed at the bottom of the hard sampling tube, and the cross section of the soft sampling bag is a circle equal to the inner diameter of the hard sampling tube; the total height of the hard sampling tube and the soft sampling bag is greater than the material height at the corresponding sampling position; the two ends of the drawstring are fixed at both sides of the top of the hard sampling tube, the single side length of the drawstring is greater than the total height of the hard sampling tube and the soft sampling bag, and the bottom surface of the soft sampling bag is provided with a closable opening. The sampling device described in the utility model has a simple structure, is easy to manufacture, and is easy to operate. It can effectively improve the sampling efficiency of the material trough or material pile and reduce the labor intensity of the sampling personnel.

[0004] In the specific use process of the above-mentioned prior art, it is necessary to sample the granular material only when unloading. When the granular material is in a piled state, the sampling device cannot actively sample the granular material, which leads to great limitations on the use of the granular material sampling device. In view of this, we propose a granular material sampling device. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a sampling device for polytetrafluoroethylene granular materials. The lifting assembly can drive the sampling assembly to move up and down, which is convenient for sampling the accumulated polytetrafluoroethylene particles and unloading the sampled samples. The arrangement of a plurality of sampling rods ensures that the device can sample polytetrafluoroethylene particles at different depths, greatly ensuring the sampling efficiency and sampling quality of the device.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A sampling device for polytetrafluoroethylene granular materials comprises a bottom plate, a lifting assembly, a telescopic cylinder, a top plate and a sliding plate, wherein the upper and lower ends of the lifting assembly are fixedly mounted on the bottom plate and the top plate respectively, moving wheels are arranged at the four corners of the bottom of the bottom plate, the sliding plate is slidably arranged on the top of the top plate, the telescopic cylinder is symmetrically arranged on both sides of the sliding plate, and the piston rod of the telescopic cylinder is connected to the side wall of the sliding plate, a sampling assembly is installed at one end of the sliding plate, the sampling assembly comprises a fixed frame, a driving mechanism, a rotating shaft, a rotating disk and a sampling rod, the fixed frame is connected to the end of the sliding plate, the rotating shaft is mounted on the fixed frame, the driving mechanism is arranged on the fixed frame, and the driving mechanism cooperates with the rotating shaft, the rotating disk is mounted on the fixed shaft, a plurality of sampling rods are arranged, and the plurality of sampling rods are evenly distributed on the rotating disk, and a sampling groove is opened at the end of the sampling rod.

[0008] Preferably, the fixing frame includes a cross bar and support rods arranged at both ends of the cross bar, the cross bar is connected to the support rod, the cross bar is symmetrically arranged on both sides of the center line of the support rod, and the two ends of the rotating shaft are rotatably installed on the support rods arranged at both ends of the cross bar. The fixing frame is used to support the normal operation of the driving mechanism, the rotating disk and the sampling rod, thereby ensuring the normal operation of the sampling assembly.

[0009] Preferably, the driving mechanism includes a driving motor, a first pulley, a second pulley, a belt and a mounting plate, the mounting plate is fixedly mounted on one of the support rods, the driving motor is mounted on the mounting plate, the first pulley is fixedly mounted on the output shaft of the driving motor, the second pulley is fixedly mounted on the rotating shaft, the first pulley is connected to the second pulley via a belt, the driving motor drives the first pulley to rotate, the rotation of the first pulley drives the second pulley to rotate via the belt, the rotation of the second pulley drives the rotating shaft to rotate, the rotation of the rotating shaft drives the sampling rod to rotate, the sampling slot at the end of the sampling rod rotates with the sampling rod, and the sampling slot rotates to achieve the purpose of sampling polytetrafluoroethylene particles.

[0010] Preferably, a sealing member is also provided at the end of the sampling rod, and the sealing member includes a sealing plate, a first cylinder, a bracket and a connecting plate. The bracket is fixedly mounted on the sampling rod, the first cylinder is mounted on the bracket, the sealing plate is slidably mounted on the sampling rod, the sealing plate is used to seal the sampling slot, the connecting plate is fixedly mounted on the end of the sealing plate, the piston rod of the first cylinder is fixedly mounted on the connecting plate, and the sealing plate seals the sampling slot to prevent the sample taken out of the sampling slot from falling off from the sampling slot, thereby ensuring the quality of the sampling of the sample by the device.

[0011] Preferably, a groove is opened on the sealing plate, a slide groove is opened on the inner wall of the groove, and a slide rail is installed on the side wall of the sampling rod. The slide groove and the slide rail slide together. The setting of the slide rail and the slide groove can guide the sealing plate and also prevent the sealing plate from tilting during operation, which would affect the sealing quality of the sampling slot.

[0012] Preferably, a guide rail is fixedly installed on the top plate, and a guide groove is opened at the bottom of the sliding plate. The guide groove and the guide rail are slidably matched. The setting of the guide rail and the guide groove can guide the sliding plate, ensure the normal operation of the sliding plate, and prevent the sliding plate from tilting during the sliding process, thereby greatly ensuring the normal operation of the sliding plate.

[0013] Preferably, it also includes an adjusting mechanism, which includes a rotating frame, a second cylinder, a gear and a rack. The rotating frame is rotatably mounted on the end of the sliding plate, the gear is fixedly mounted on the rotating frame, the rack is arranged on one side of the gear, and the rack is meshed with the gear. The second cylinder is arranged above the sliding plate, and the second cylinder is mounted on the sliding plate, and the piston rod of the second cylinder is fixedly mounted on the side wall of the rack. The second cylinder drives the rack to move, and the rack is meshed with the gear. The movement of the rack drives the gear to rotate, and the rotation of the gear drives the rotating frame to rotate. The rotation of the rotating frame drives the sampling assembly to rotate, thereby achieving the purpose of adjusting the angle of the sampling assembly and the horizontal plane, ensuring that the device can sample the surface of polytetrafluoroethylene particles with different stacking slopes, and improving the applicability of the device.

[0014] Preferably, a mounting groove is opened at the end of the sliding plate, the gear is arranged in the mounting groove, guide plates are fixedly installed on both sides of the mounting groove, and sliding grooves are opened on the two side walls of the rack, the sliding grooves and the guide plates are slidably matched, the mounting grooves are set to ensure the safety of the gear and ensure the normal operation of the gear, and the setting of the guide plate and the sliding groove can serve the purpose of guiding the rack and ensure the normal operation of the rack.

[0015] Preferably, the rotating frame includes a fixed shaft and fixed rods fixedly mounted at both ends of the fixed shaft, the fixed rods are fixedly mounted on one of the support rods, the fixed shaft is rotatably mounted on the side wall of the mounting groove, the gear is fixedly mounted on the fixed shaft, and the rotating frame is used to connect the fixed frame and the gear to ensure that the fixed frame can be driven to rotate when the rack and gear are meshed, thereby achieving the purpose of adjusting the angle of the sampling component.

[0016] The beneficial effects of the present invention are:

[0017] 1) The lifting assembly of the device can drive the sampling assembly to move up and down, which is convenient for sampling the accumulated polytetrafluoroethylene particles and unloading the completed samples. The setting of several sampling rods ensures that the device can sample polytetrafluoroethylene particles at different depths, which greatly ensures the sampling efficiency and sampling quality of the device.

[0018] 2) The fixed frame of the device is used to support the normal operation of the driving mechanism, the rotating disk and the sampling rod, ensuring the normal operation of the sampling assembly.

[0019] 3) The driving motor of the device drives the first pulley to rotate, the rotation of the first pulley drives the second pulley to rotate through the belt, the rotation of the second pulley drives the rotating shaft to rotate, the rotation of the rotating shaft drives the sampling rod to rotate, the sampling slot at the end of the sampling rod rotates with the sampling rod, and the sampling slot rotates to achieve the purpose of sampling polytetrafluoroethylene particles.

[0020] 4) The sealing plate of the device is used to seal the sampling slot. The connecting plate is fixedly installed on the end of the sealing plate. The piston rod of the first cylinder is fixedly installed on the connecting plate. The sealing plate seals the sampling slot to prevent the sample taken out of the sampling slot from falling off from the sampling slot, thereby ensuring the quality of the sampling of the device.

[0021] 5) The setting of the slide rail and the slide groove of the device can guide the sealing plate and also prevent the sealing plate from tilting during operation, thereby affecting the sealing quality of the sampling slot.

[0022] 6) The guide rails and guide grooves of the device can guide the sliding plate, ensure the normal operation of the sliding plate, and prevent the sliding plate from tilting during the sliding process, thereby greatly ensuring the normal operation of the sliding plate.

[0023] 7) The second cylinder of the device drives the rack to move, the rack is meshed with the gear, the movement of the rack drives the gear to rotate, the rotation of the gear drives the rotating frame to rotate, the rotation of the rotating frame drives the sampling component to rotate, thereby achieving the purpose of adjusting the angle between the sampling component and the horizontal plane, ensuring that the device can sample the surface of polytetrafluoroethylene particles with different stacking slopes, and improving the applicability of the device.

[0024] 8) The installation groove of the device is set to ensure the safety of the gear and the normal operation of the gear. The setting of the guide plate and the sliding groove can guide the rack and ensure the normal operation of the rack.

[0025] 9) The rotating frame of the device is used to connect the fixed frame and the gear to ensure that the fixed frame can be driven to rotate when the rack and gear are engaged, thereby achieving the purpose of adjusting the angle of the sampling component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1It is a structural schematic diagram of the present invention.

[0027] Attached Figure 2 It is a bottom view structural schematic diagram of the present invention.

[0028] Attached Figure 3 It is a schematic diagram of the installation structure of the sampling component in the present invention.

[0029] Attached Figure 4 It is a schematic diagram of the structure of the sampling component in the present invention.

[0030] Attached Figure 5 It is a schematic diagram of the installation structure of the driving mechanism in the present invention.

[0031] Attached Figure 6 It is a structural schematic diagram of the medicine taking trough in the present invention.

[0032] Attached Figure 7 It is a structural schematic diagram of the blocking member in the present invention.

[0033] Attached Figure 8 It is a structural schematic diagram of the regulating mechanism in the present invention.

[0034] Attached Fig. 9 It is a schematic diagram of the slide rail structure in the present invention.

[0035] Attached Fig.10 It is a structural schematic diagram of the sliding plate in the present invention.

[0036] In the figure:

[0037] 1. Bottom plate;

[0038] 2. Sampling assembly; 201. Fixing frame; 202. Driving mechanism; 203. Rotating shaft; 204. Rotating disk; 205. Sampling rod; 206. Cross bar; 207. Support rod; 208. Mounting plate; 209. Driving motor; 2010. Belt; 2011. Second pulley; 2012. First pulley; 2013. Sampling slot; 2014. Slide rail;

[0039] 3. Blocking member; 301. Bracket; 302. First cylinder; 303. Connecting plate; 304. Blocking plate; 305. Groove; 306. Slide groove;

[0040] 4. Adjustment mechanism; 401. Rack; 402. Rotating frame; 403. Fixed rod; 404. Gear; 405. Fixed shaft; 406. Sliding groove; 407. Second cylinder; 408. Guide plate;

[0041] 5. Sliding plate; 501. Mounting groove; 502. Guide groove;

[0042] 6. Telescopic cylinder;

[0043] 7. Top plate; 701. Guide rail;

[0044] 8. Lifting components;

[0045] 9. Moving wheels. DETAILED DESCRIPTION

[0046] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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.

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] like Figure 1 , Figure 2 As shown, a sampling device for polytetrafluoroethylene granular material comprises a bottom plate 1, a lifting assembly 8, a telescopic cylinder 6, a top plate 7 and a sliding plate 5, wherein the upper and lower ends of the lifting assembly 8 are fixedly mounted on the bottom plate 1 and the top plate 7 respectively, and the lifting assembly 8 can be set as a scissor-type lifting structure or a threaded rod lifting structure, and moving wheels 9 are arranged at the four corners of the bottom of the bottom plate 1, and the arrangement of the moving wheels 9 is convenient for the staff to drive the device to move, thereby greatly improving the flexibility of the device, and the sliding plate 5 is slidingly arranged on the top of the top plate 7, and the telescopic cylinder 6 is symmetrically arranged on both sides of the sliding plate 5, and the piston rod of the telescopic cylinder 6 is connected to the side wall of the sliding plate 5, and a sampling assembly 2 is installed at one end of the sliding plate 5, and the telescopic cylinder 6 cooperates with the sliding plate 5 and the top plate 7 to adjust the position of the sampling assembly 2, thereby ensuring that the sampling assembly 2 can sample polytetrafluoroethylene particles at different positions.

[0049] like Figure 3 , Figure 4 ,like Figure 6As shown, the sampling assembly 2 includes a fixed frame 201, a driving mechanism 202, a rotating shaft 203, a rotating disk 204 and a sampling rod 205. The fixed frame 201 is connected to the end of the sliding plate 5, the rotating shaft 203 is installed on the fixed frame 201, the driving mechanism 202 is arranged on the fixed frame 201, and the driving mechanism 202 cooperates with the rotating shaft 203. The rotating disk 204 is installed on the fixed shaft 405. The sampling rods 205 are provided with a plurality of sampling rods 205, and the plurality of sampling rods 205 are evenly distributed on the rotating disk 204. A sampling groove 2013 is opened at the end of the sampling rod 205. The setting of the sampling groove 2013 facilitates the sampling and collection of polytetrafluoroethylene particles, which greatly improves the sampling efficiency and sampling quality of the device.

[0050] As an optimization solution of the present invention, Figure 4 As shown, the fixing frame 201 includes a cross bar 206 and support rods 207 arranged at both ends of the cross bar 206, the cross bar 206 is connected to the support rods 207, the cross bar 206 is symmetrically arranged on both sides of the center line of the support rod 207, and the two ends of the rotating shaft 203 are respectively rotatably mounted on the support rods 207 arranged at both ends of the cross bar 206.

[0051] The fixing frame 201 is used to support the normal operation of the driving mechanism 202 , the rotating disk 204 and the sampling rod 205 , thereby ensuring the normal operation of the sampling assembly 2 .

[0052] As an optimization solution of the present invention, Figure 5 As shown, the driving mechanism 202 includes a driving motor 209, a first pulley 2012, a second pulley 2011, a belt 2010 and a mounting plate 208, the mounting plate 208 is fixedly mounted on one of the support rods 207, the driving motor 209 is mounted on the mounting plate 208, the first pulley 2012 is fixedly mounted on the output shaft of the driving motor 209, the second pulley 2011 is fixedly mounted on the rotating shaft 203, and the first pulley 2012 is connected to the second pulley 2011 via the belt 2010.

[0053] The driving motor 209 drives the first pulley 2012 to rotate. The rotation of the first pulley 2012 drives the second pulley 2011 to rotate through the belt 2010. The rotation of the second pulley 2011 drives the rotating shaft 203 to rotate. The rotation of the rotating shaft 203 drives the sampling rod 205 to rotate. The sampling groove 2013 at the end of the sampling rod 205 rotates with the sampling rod 205. The rotation of the sampling groove 2013 achieves the purpose of sampling polytetrafluoroethylene particles.

[0054] As an optimization solution of the present invention, Figure 6 , Figure 7As shown, a blocking member 3 is also provided at the end of the sampling rod 205, and the blocking member 3 includes a blocking plate 304, a first cylinder 302, a bracket 301 and a connecting plate 303. The bracket 301 is fixedly mounted on the sampling rod 205, the first cylinder 302 is mounted on the bracket 301, the blocking plate 304 is slidably mounted on the sampling rod 205, the blocking plate 304 is used to block the sampling slot 2013, the connecting plate 303 is fixedly mounted on the end of the blocking plate 304, and the piston rod of the first cylinder 302 is connected to the connecting plate 303.

[0055] The piston rod of the first cylinder 302 is fixedly mounted on the connecting plate 303, and the blocking plate 304 blocks the sampling slot 2013 to prevent the sample taken out of the sampling slot 2013 from falling off from the sampling slot 2013, thereby ensuring the quality of the sampling of the sample by the device.

[0056] As an optimization solution of the present invention, Figure 7 As shown, a groove 305 is formed on the blocking plate 304 , a slide groove 306 is formed on the inner wall of the groove 305 , a slide rail 2014 is installed on the side wall of the sampling rod 205 , and the slide groove 306 is slidably matched with the slide rail 2014 .

[0057] The setting of the slide rail 2014 and the slide groove 306 can guide the sealing plate 304 and also prevent the sealing plate 304 from tilting during operation, thereby affecting the sealing quality of the sampling slot 2013 .

[0058] As an optimization solution of the present invention, Fig. 9 As shown, a guide rail 701 is fixedly mounted on the top plate 7 , and a guide groove 502 is opened at the bottom of the sliding plate 5 , and the guide groove 502 is slidably matched with the guide rail 701 .

[0059] The setting of the guide rail 701 and the guide groove 502 can guide the sliding plate 5, ensure the normal operation of the sliding plate 5, and prevent the sliding plate 5 from tilting during the sliding process, thereby greatly ensuring the normal operation of the sliding plate 5.

[0060] As an optimization solution of the present invention, Figure 8 As shown, it also includes an adjusting mechanism 4, which includes a rotating frame 402, a second cylinder 407, a gear 404 and a rack 401. The rotating frame 402 is rotatably mounted on the end of the sliding plate 5, the gear 404 is fixedly mounted on the rotating frame 402, the rack 401 is arranged on one side of the gear 404, and the rack 401 is meshed with the gear 404, the second cylinder 407 is arranged above the sliding plate 5, and the second cylinder 407 is installed on the sliding plate 5, and the piston rod of the second cylinder 407 is fixedly mounted on the side wall of the rack 401.

[0061] The second cylinder 407 drives the rack 401 to move, and the rack 401 meshes with the gear 404. The movement of the rack 401 drives the gear 404 to rotate. The rotation of the gear 404 drives the rotating frame 402 to rotate. The rotation of the rotating frame 402 drives the sampling component 2 to rotate, thereby achieving the purpose of adjusting the angle between the sampling component 2 and the horizontal plane, ensuring that the device can sample the surface of polytetrafluoroethylene particles with different stacking slopes, and improving the applicable scenarios of the device.

[0062] As an optimization solution of the present invention, Fig.10 As shown, a mounting groove 501 is formed at the end of the sliding plate 5, and the gear 404 is arranged in the mounting groove 501. Fig. 9 As shown, guide plates 408 are fixedly installed on both sides of the installation groove 501 , and sliding grooves 406 are opened on both side walls of the rack 401 , and the sliding grooves 406 are slidably matched with the guide plates 408 .

[0063] The installation groove 501 is provided to ensure the safety of the gear 404 and the normal operation of the gear 404 . The guide plate 408 and the sliding groove 406 are provided to guide the rack 401 and the normal operation of the rack 401 is ensured.

[0064] As an optimization solution of the present invention, Figure 8 As shown, the rotating frame 402 includes a fixed shaft 405 and fixed rods 403 fixedly installed at both ends of the fixed shaft 405, the fixed rod 403 is fixedly installed on one of the support rods 207, the fixed shaft 405 is rotatably installed on the side wall of the installation groove 501, and the gear 404 is fixedly installed on the fixed shaft 405.

[0065] The rotating frame 402 is used to connect the fixed frame 201 and the gear 404 to ensure that the fixed frame 201 can be driven to rotate when the rack 401 and the gear 404 are engaged, thereby achieving the purpose of adjusting the angle of the sampling component 2.

[0066] Example 1

[0067] Start the lifting assembly 8 to drive the sampling assembly 2 to rise to a suitable position, turn on the driving motor 209 to drive the first pulley 2012 to rotate, the first pulley 2012 rotates to drive the second pulley 2011 to rotate through the belt 2010, the second pulley 2011 rotates to drive the rotating shaft 203 to rotate, the rotating shaft 203 rotates to drive the rotating disk 204 to rotate, the rotating disk 204 rotates to drive the sampling rods 205 to rotate, so that all the sampling rods 205 on the rotating disk 204 are located above the fixed frame 201, turn off the driving motor 209, The device is pushed to a designated position so that the sampling assembly 2 is located above the polytetrafluoroethylene particles to be sampled, and the lifting assembly 8 is started to drive the sampling assembly 2 to descend until the bottom of the sliding plate 5 or the top plate 7 contacts the upper direction of the accumulated polytetrafluoroethylene particles, and the driving motor 209 is turned on again to drive the first pulley 2012 to rotate. The rotation of the first pulley 2012 drives the second pulley 2011 to rotate through the belt 2010. The rotation of the second pulley 2011 drives the rotating shaft 203 to rotate, and the rotation of the rotating shaft 203 drives the rotating disk 2012 to rotate. 4, the rotating disk 204 rotates to drive the sampling rod 205 to rotate. When the sampling rod 205 rotates to a suitable position, the driving motor 209 is turned off, and the first cylinder 302 is turned on to drive the connecting plate 303 and the blocking plate 304 to move toward the side away from the sampling rod 205, so that there is a certain gap between the bottom of the groove 305 on the blocking plate 304 and the bottom of the sampling rod 205. The driving motor 209 is turned on again to continue to drive the sampling rod 205 to rotate. While the sampling rod 205 rotates, the polytetrafluoroethylene particles to be sampled are The sampling slot 2013 is sealed by the sealing plate 304. Finally, the driving motor 209 is turned on to rotate the sampling rod 205 to the top of the fixing frame 201, and the polytetrafluoroethylene particle sample taken out through the sampling slot 2013 is taken out, thereby achieving the purpose of sampling the polytetrafluoroethylene particles.

[0068] Example 2

[0069] The rack 401 is driven to move by the second cylinder 407, and the rack 401 is meshed with the gear 404. The movement of the rack 401 drives the gear 404 to rotate. The rotation of the gear 404 drives the rotating frame 402 to rotate. The rotation of the rotating frame 402 drives the sampling component 2 to rotate to a suitable angle. Then, the steps in Example 1 are performed to achieve the purpose of sampling polytetrafluoroethylene particles.

[0070] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the structure of the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A sampling device for polytetrafluoroethylene granular material, comprising a bottom plate, a lifting assembly, a telescopic cylinder, a top plate and a sliding plate, characterized in that: The upper and lower ends of the lifting assembly are fixedly mounted on the bottom plate and the top plate respectively; moving wheels are arranged at the four corners of the bottom of the bottom plate; the sliding plate is slidably arranged on the top of the top plate; the telescopic cylinders are symmetrically arranged on both sides of the sliding plate, and the piston rods of the telescopic cylinders are connected to the side walls of the sliding plate; a sampling assembly is installed at one end of the sliding plate; the sampling assembly comprises a fixed frame, a driving mechanism, a rotating shaft, a rotating disk and a sampling rod; the fixed frame is connected to the end of the sliding plate; the rotating shaft is mounted on the fixed frame; the driving mechanism is arranged on the fixed frame, and the driving mechanism cooperates with the rotating shaft; the rotating disk is mounted on the fixed shaft; a plurality of sampling rods are arranged, and the plurality of sampling rods are evenly distributed on the rotating disk; a sampling groove is opened at the end of the sampling rod.

2. A sampling device for polytetrafluoroethylene granular material according to claim 1, characterized in that: The fixing frame includes a cross bar and support rods arranged at both ends of the cross bar, the cross bar is connected to the support rod, the cross bar is symmetrically arranged on both sides of the center line of the support rod, and the two ends of the rotating shaft are rotatably installed on the support rods arranged at both ends of the cross bar.

3. A sampling device for polytetrafluoroethylene granular material according to claim 2, characterized in that: The driving mechanism includes a driving motor, a first pulley, a second pulley, a belt and a mounting plate, wherein the mounting plate is fixedly mounted on one of the support rods, the driving motor is mounted on the mounting plate, the first pulley is fixedly mounted on the output shaft of the driving motor, the second pulley is fixedly mounted on the rotating shaft, and the first pulley is connected to the second pulley via a belt.

4. A sampling device for polytetrafluoroethylene granular material according to claim 1, characterized in that: A sealing member is also provided at the end of the sampling rod, and the sealing member includes a sealing plate, a first cylinder, a bracket and a connecting plate. The bracket is fixedly mounted on the sampling rod, the first cylinder is mounted on the bracket, the sealing plate is slidably mounted on the sampling rod, the sealing plate is used to seal the sampling slot, the connecting plate is fixedly mounted on the end of the sealing plate, and the piston rod of the first cylinder is fixedly mounted on the connecting plate.

5. A sampling device for polytetrafluoroethylene granular material according to claim 4, characterized in that: A groove is formed on the sealing plate, a slide groove is formed on the inner wall of the groove, a slide rail is installed on the side wall of the sampling rod, and the slide groove and the slide rail are slidably matched.

6. A sampling device for polytetrafluoroethylene granular material according to claim 1, characterized in that: A guide rail is fixedly installed on the top plate, and a guide groove is opened at the bottom of the sliding plate, and the guide groove is slidably matched with the guide rail.

7. A sampling device for polytetrafluoroethylene granular material according to claim 2, characterized in that: It also includes an adjusting mechanism, which includes a rotating frame, a second cylinder, a gear and a rack. The rotating frame is rotatably mounted on the end of the sliding plate, the gear is fixedly mounted on the rotating frame, the rack is arranged on one side of the gear, and the rack is meshed with the gear. The second cylinder is arranged above the sliding plate, and the second cylinder is mounted on the sliding plate, and the piston rod of the second cylinder is fixedly mounted on the side wall of the rack.

8. A sampling device for polytetrafluoroethylene granular material according to claim 7, characterized in that: A mounting groove is provided at the end of the sliding plate, the gear is arranged in the mounting groove, guide plates are fixedly installed on both sides of the mounting groove, and sliding grooves are provided on both side walls of the rack, and the sliding grooves are slidably matched with the guide plates.

9. A sampling device for polytetrafluoroethylene granular material according to claim 8, characterized in that: The rotating frame includes a fixed shaft and fixed rods fixedly mounted at both ends of the fixed shaft, the fixed rods are fixedly mounted on one of the support rods, the fixed shaft is rotatably mounted on the side wall of the mounting groove, and the gear is fixedly mounted on the fixed shaft.

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