A powder tap density testing device

Abstract

A powder tap density testing device relates to the field of performance testing and includes: a workbench; a transfer mechanism, including a rotating frame mounted on the workbench and rotating about its own axis, a support frame movable along its length and vertical direction, a detachable mounting frame within the support frame, a plurality of support blocks arranged in a rectangular array within the mounting frame, a first through-hole provided at each end of the first through-hole, a feed tube and a loading tube respectively provided, and the upper end of the loading tube located within the first through-hole; a vibration mechanism, including a vibration frame mounted on the workbench and configured to vibrate itself, for placing the mounting frame; and a weighing mechanism, including a supporting frame mounted on one side of the vibration mechanism, a plurality of supporting portions arranged in a rectangular array on the supporting frame for placing the loading tube, and a weight detection module provided at the bottom of the supporting portion for weighing the loading tube. This device can automatically transfer the loading tube and reduce the possibility of powder adhesion, thereby ensuring accuracy while improving detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing, and in particular to a powder tap density testing device. Background Art

[0002] After production, powder materials like lithium iron phosphate undergo multi-dimensional testing to ensure their performance, safety, and reliability, including particle size distribution, specific surface area, and tap density. Tap density, in particular, reflects the battery's energy density and volumetric capacity. A higher tap density indicates a greater mass of active material per unit volume, leading to higher battery energy density and volumetric capacity. Tap density refers to the mass per unit volume of the powder material after tapping under specified conditions.

[0003] There are two main methods in the existing technology to detect the tap density of powder:

[0004] Fixed mass method: Place a fixed mass of powder in a transparent measuring cylinder, then place the transparent measuring cylinder in a vibrating device. After the vibration is completed, read the tapped volume of the powder in the measuring cylinder and calculate the material density using the formula: Tapped density = mass / tapped volume.

[0005] Fixed volume method: A certain mass of powder is placed in a combined measuring cylinder consisting of two glass tubes with the same inner diameter. The upper glass tube is set to be through, and the lower glass tube is sealed at the lower end. The powder is gradually compacted by vibration. The upper glass tube is then removed and the surface of the powder is scraped flat along the edge of the sealed glass tube. The mass of the powder in the sealed glass tube is measured, and the tap density of the powder can be calculated.

[0006] While the fixed mass method ensures accurate mass, the powder surface may not be completely flat during readings, resulting in protrusions, peaks, and occasional spherical agglomerations. Furthermore, the uncertainty of manual readings can lead to calculation errors and a failure to truly reflect the powder's properties. While the fixed volume method eliminates the problem of inaccurate sample volume, removing the glass tube can cause powder to spill onto the sealed glass tube below, resulting in inaccurate weighing. The operation is cumbersome and hinders rapid testing. In actual production, to accurately reflect powder properties as much as possible, both methods are typically used to test as many powders as possible. Both the fixed mass and fixed volume methods require manual transfer of the graduated cylinder. When placing the graduated cylinder in a vibrating device, rubber is often used to secure it to prevent it from falling off, creating an interference fit. This means that only one cylinder can be operated at a time, making it inconvenient to remove and inefficient. In the fixed volume method, powder easily adheres to the outer wall of the graduated cylinder, leading to weighing errors. Summary of the Invention

[0007] In response to the above-mentioned deficiencies in the related existing technologies, the present application provides a powder tap density testing device that can automatically transfer the material carrier tube and reduce the possibility of powder adhesion, thereby ensuring accuracy and improving detection efficiency.

[0008] In order to achieve the above object, the present invention adopts the following technologies:

[0009] A powder tap density testing device comprises a workbench, a transfer mechanism, a vibration mechanism, and a weighing mechanism.

[0010] A first lifting frame and a second lifting frame are respectively provided at both ends of the workbench, which are movable in the vertical direction; the transfer mechanism includes a rotating frame provided above the workbench and rotating around its own central axis, a support frame is provided below the rotating frame, which is movable along its length and vertical direction, a detachable mounting frame is provided in the support frame, a plurality of support blocks are provided in the mounting frame in a rectangular array, the support block is provided with a first through hole, and a feeding pipe is detachably connected to the upper and lower ends of the first through hole; a plurality of loading pipes are placed in a rectangular array on the second lifting frame, which are used to transfer to the lower end of the first through hole, After the transfer, the upper end of the loading tube is located in the first through hole, and a plurality of first discharge tubes are provided in a rectangular array on the first lifting frame, which are used to pass through the first through hole to discharge the powder in the feeding tube; the vibration mechanism includes a vibration frame installed on the workbench and configured to vibrate itself, which is used to place the mounting frame to vibrate the loading tube after feeding; the weighing mechanism includes a supporting frame provided on one side of the vibration mechanism, and a plurality of supporting parts are provided on the supporting frame in a rectangular array, which are used to place the loading tube after vibration, and a weight detection module is provided at the bottom of the supporting part for weighing the placed loading tube.

[0011] Furthermore, side plates are provided on both sides of the mounting frame, and multiple clamping plates are provided on the inner side of the side plates along the length direction. The clamping plates are U-shaped, and a clamping ring is provided on the outer wall of the loading tube. After transfer, the loading tube is fitted into the clamping plate, and the upper and lower sides of the clamping ring respectively abut against the bottom surface of the support block and the top surface of the clamping plate; a bracket is provided on the side plate, and the bracket is sleeved on the cross bar, the cross bar is installed on the protrusion, and the protrusion is installed on the mounting frame, and a first spring is sleeved on both ends of the cross bar, and the two ends of the first spring respectively abut against the protrusion and the bracket, and are always in a compressed state.

[0012] Furthermore, a pressure block is provided between the brackets. The pressure block is in an inverted trapezoidal shape. When used, its two sides are in contact with the brackets. A recess is provided at the bottom of the pressure block for passing the cross bar. The top of the pressure block is connected to the moving end of the first vertical lifting mechanism. The first vertical lifting mechanism is installed on the mobile frame. The mobile frame slides in the rotating frame and is movable along its length. A second vertical lifting mechanism is provided on the mobile frame. The moving end of the second vertical lifting mechanism is connected to the support frame.

[0013] Furthermore, a second through hole running through the upper and lower parts is provided on the support block, and the distance between the second through hole and the center of the mounting frame is smaller than the distance between the first through hole and the center of the mounting frame. A groove is provided at one end of the support block away from the center of the mounting frame, and the groove connects the first through hole and the second through hole, and when the loading tube is located in the first through hole, the top surface of the loading tube is flush with the bottom surface of the groove; a partition is provided in the groove which is movable along its length direction, and a connecting hole is provided on the partition which runs through the upper and lower parts, and when in use, the connecting hole is aligned with the first through hole or the second through hole.

[0014] Furthermore, the partitions on the same side are all installed on the connecting rod, and guide rods are detachably installed at both ends of the connecting rod. The axis of the guide rod is parallel to the length direction of the rotating frame and is passed through the base plate. The base plate is installed at the bottom of the mounting frame. A limiting ring and a second spring are provided on the guide rod. The two ends of the second spring respectively abut the limiting ring and the base plate and are always in a compressed state. A first retaining ring is provided at the end of the guide rod for abutting the base plate.

[0015] Furthermore, two limit holes are provided on the partition along its length direction, and a limit rod is passed through one of the limit holes, which is installed at the bottom of the pressure plate. The pressure plate is mounted on the vertical rod, and the vertical rod is installed on the mounting frame. A second retaining ring is provided at the upper end, and a third spring is mounted on the vertical rod. The two ends of the third spring are respectively abutted against the second retaining ring and the pressure plate, and are always in a compressed state.

[0016] Furthermore, a bidirectional linear mechanism is provided at both ends of the support frame, and the moving end of the bidirectional linear mechanism is connected to a moving plate. Two positioning blocks are provided on the side of the moving plate, one of which is passed through the mounting frame, and the other positioning block is located on the top surface of the mounting frame.

[0017] Furthermore, two symmetrically arranged blocks are provided at both ends of the vibration frame, the upward side of the block is arc-shaped, and a push rod is provided at the opposite end, the push rod is passed through the vertical plate, and the vertical plate is installed on the vibration frame, one end of the push rod is passed through the L-shaped plate, and the L-shaped plate is installed on the outside of the vertical plate, a retaining ring is provided on the push rod, and a fourth spring is sleeved thereon, the two ends of the fourth spring respectively abut against the L-shaped plate and the retaining ring, and are always in a compressed state.

[0018] Furthermore, support rods are provided at both ends of the vibration frame, and support rings are provided on the support rods. The distance between the top surface of the support ring and the bottom surface of the block is equal to the thickness of the mounting frame. When used, the mounting frame is sleeved on the support rods and located between the support ring and the block.

[0019] Furthermore, a top frame movable in the vertical direction is provided above the carrier frame, and a plurality of first push rods are provided on the top surface of the top frame. When in use, the top surface of the first push rod contacts the bottom surface of the pressure plate; push plates installed on the workbench are provided on both sides of the top frame, and the push plates include two vertical sections, and the two vertical sections are connected by a transition section. The distance between the upper vertical section and the center of the top frame is greater than the distance between the lower vertical section and the center of the top frame. When in use, the push plate contacts the outer side of the connecting rod.

[0020] Furthermore, the weighing mechanism also includes a mounting plate located above the carrier frame and sleeved on the first side rod at both ends. A plurality of second discharge pipes are provided on the mounting plate. When in use, the second discharge pipes are aligned with the second through holes, and the upper ends of the second discharge pipes abut against the bottom surface of the support block. The lower end of the first side rod is installed on the workbench, and a third retaining ring is provided at the upper end for abutting against the mounting plate. A fifth spring is sleeved on the first side rod, and the two ends of the fifth spring abut against the mounting plate and the workbench respectively.

[0021] The beneficial effects of the present invention are as follows: multiple loading tubes can be transferred at the same time through the support block, so that the powder in the multiple loading tubes can be vibrated and weighed at the same time, thereby improving efficiency; the loading tube is separated from the feed tube by the partition, and the powder outside the loading tube is collected by the discharge pipe, thereby reducing the possibility of powder adhering to the loading tube, thereby further ensuring the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0023] Figure 1 It is a schematic three-dimensional diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 This is a three-dimensional schematic diagram of the transfer mechanism of an embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the installation between the mounting frame and the support frame according to an embodiment of the present application.

[0026] Figure 4 This is a schematic cross-sectional view of the mounting frame and the supporting frame according to an embodiment of the present application.

[0027] Figure 5 This is a three-dimensional diagram of the mounting frame according to an embodiment of the present application.

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the mounting frame according to an embodiment of the present application.

[0029] Figure 7 This is a three-dimensional schematic diagram of the vibration mechanism of an embodiment of the present application.

[0030] Figure 8 This is a three-dimensional schematic diagram of the mounting frame of an embodiment of the present application being moved onto the vibration frame.

[0031] Figure 9 This is a three-dimensional schematic diagram of the weighing mechanism of an embodiment of the present application.

[0032] Figure 10 This is a three-dimensional schematic diagram of the mounting frame of an embodiment of the present application being moved onto the supporting frame.

[0033] Figure 11 This is a cross-sectional schematic diagram of the mounting frame according to an embodiment of the present application being moved onto the supporting frame.

[0034] Figure 12 This is a schematic diagram of the installation of the first discharge pipe in an embodiment of the present application.

[0035] Explanation of reference numerals: 100—working table, 200—transfer mechanism, 300—vibration mechanism, 400—weighing mechanism, 101—first lifting frame, 102—second lifting frame, 103—first discharge pipe, 104—second side rod, 105—fourth retaining ring, 106—sixth spring, 107—second ejector rod, 201—rotating frame, 202—support frame, 203—mounting frame, 204—support block, 205—first through hole, 206—side plate, 207—clamping plate, 208—bracket, 209—cross bar, 210—bump, 211—first spring, 212—pressing block, 213—recess, 214—moving frame, 215—second through hole, 216—groove, 217—partition plate, 218—connecting hole, 219—connecting rod, 220—transmission frame, 221—transmission frame, 222—transmission frame, 223—transmission frame, 224—transmission frame, 225—second through hole, 226—groove, 227—partition plate, 228—connecting hole, 229—connecting rod, 230—transmission frame, 231—transmission frame, 232—transmission frame, 233—transmission frame, 234—transmission frame, 235—transmission frame, 236—transmission frame, 237—transmission frame, 238—transmission frame, 239—transmission frame, 240—transmission frame, 241—transmission frame, 242—transmission frame, 243—transmission frame, 244—transmission frame, 245—transmission frame 0—guide rod, 221—bottom plate, 222—limiting ring, 223—second spring, 224—first retaining ring, 225—limiting hole, 226—limiting rod, 227—pressing plate, 228—vertical rod, 229—second retaining ring, 230—third spring, 231—moving plate, 232—positioning block, 301—vibration frame, 302—block, 303—push rod, 304—vertical plate, 305—L-shaped plate, 306—retaining ring, 307—fourth spring, 308—support rod, 309—support ring, 401—carrying frame, 402—carrying part, 403—top frame, 404—first push rod, 405—first side rod, 406—mounting plate, 407—second discharge pipe, 408—third retaining ring, 409—fifth spring, 410—push plate. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] like Figures 1 to 12As shown, an embodiment of the present application provides a powder tap density testing device, including: a workbench 100, a transfer mechanism 200, a vibration mechanism 300, and a weighing mechanism 400.

[0038] The transfer mechanism 200 includes a rotating frame 201 provided above the workbench 100 and rotating around its own central axis. A support frame 202 is provided below the rotating frame 201, which is movable along its length and vertical directions. A detachably connected mounting frame 203 is provided in the support frame 202. A plurality of support blocks 204 are provided in a rectangular array in the mounting frame 203. The support block 204 is provided with a first through hole 205. A detachably connected feeding pipe and a loading pipe are provided at the upper and lower ends of the first through hole 205, respectively, and the upper end of the loading pipe is located in the first through hole 205. When in use, powder is added to the loading pipe through the feeding pipe, and the powder should exceed the loading pipe, and the top of the powder is located in the feeding pipe; the vibration mechanism 300 includes a vibration frame 301 installed on the workbench 100 and vibrating by itself, which is used to place the mounting frame 203, and the loading pipe on the mounting frame 203 is driven by the vibration of the vibration frame 301. Vibration makes the powder fill tightly in the loading tube; the weighing mechanism 400 includes a load-bearing frame 401 arranged on one side of the vibration mechanism 300, and a plurality of load-bearing parts 402 are provided on the load-bearing frame 401 in a rectangular array for placing the loading tube on which the powder has been vibrated and compacted on the mounting frame 203, and a weight detection module is provided at the bottom of the load-bearing part 402 for weighing the powder in the loading tube; a first lifting frame 101 and a second lifting frame 102 are respectively provided at both ends of the workbench 100 for movement in the vertical direction, and the vibration mechanism 300 and the weighing mechanism 400 are sequentially located between the first lifting frame 101 and the second lifting frame 102, a plurality of first discharge pipes 103 are provided on the first lifting frame 101 in a rectangular array, for passing through the first through hole 205 to discharge the powder in the feed pipe, and a plurality of loading pipes are placed in a rectangular array on the second lifting frame 102 for transferring to the support block 204.

[0039] Specifically, if Figures 1-4As shown, side plates 206 are provided on both sides of the mounting frame 203, and multiple clamping plates 207 are provided on the inner side of the side plates 206 along its length direction. The clamping plates 207 are U-shaped, and the side surfaces of the loading tube are fitted in the clamping plates 207. The outer wall of the loading tube is provided with a clamping ring, and the upper and lower sides of the clamping ring respectively abut against the bottom surface of the support block 204 and the top surface of the clamping plate 207 to prevent the loading tube from moving up and down during vibration. A bracket 208 is provided on the side plate 206, and the bracket 208 is sleeved on the cross bar 209. The cross bar 209 is mounted on the protrusion 210, and the protrusion 210 is mounted on the mounting frame 203. First springs 211 are sleeved on both ends of the cross bar 209. The two ends of the first spring 211 respectively abut against the protrusion 210 and the bracket 208 and are always in a compressed state. Under the action of the first spring 211, the side plate 206 always has a tendency to move toward the center of the mounting frame 203, thereby ensuring the limitation of the loading tube.

[0040] The feed tube can be installed on the support block 204 by means of a threaded connection. In order to facilitate the observation of the powder state in the loading tube and the feed tube, the loading tube and the feed tube are usually made of transparent material. During the vibration process, if the volume change between two adjacent vibrations is less than 2mL, the vibration can be stopped.

[0041] Specifically, if Figure 2-Figure 4 As shown, a pressure block 212 is provided between the brackets 208. The pressure block 212 is in an inverted trapezoidal shape. The top of the pressure block 212 is connected to the moving end of the first vertical lifting mechanism. The first vertical lifting mechanism is installed on the moving frame 214. The moving frame 214 slides in the rotating frame 201 and is movable along its length. When the loading tube needs to be removed from the support block 204, the pressure block 212 is driven downward by the first vertical lifting mechanism to make both sides of the pressure block 212 contact with the brackets 208, thereby forcing the two brackets 208 to move away from each other and driving the clamping plate 207 to move, thereby releasing the limit on the loading tube, and a recess 213 is provided at the bottom of the pressure block 212 for passing the cross bar 209 to avoid interference during the downward movement of the pressure block 212.

[0042] Specifically, if Figure 5-Figure 6As shown, the support block 204 is provided with a second through hole 215 running through it from top to bottom. The distance between the second through hole 215 and the center of the mounting frame 203 is smaller than the distance between the first through hole 205 and the center of the mounting frame 203. The support block 204 is provided with a groove 216 at one end away from the center of the mounting frame 203. The groove 216 connects the first through hole 205 and the second through hole 215. The top surface of the material carrying tube is flush with the bottom surface of the groove 216. A partition 217 is provided in the groove 216 and is movable along its length. Then, the top surface of the material carrying tube is flush with the bottom surface of the partition 217. A connecting hole 218 running through it from top to bottom is provided on the partition 217. When it is on the support block 204 and before the vibration ends, the connecting hole 218 is aligned with the first through hole 205 and the loading tube at the same time. After the vibration ends, when the loading tube needs to be removed from the support block 204, in order to prevent the powder in the feed tube from spilling downward during this process, the partition 217 can be driven to move so that the connecting hole 218 is aligned with the second through hole 215. At this time, the powder in the connecting hole 218 will be discharged through the second through hole 215, and the partition 217 will separate the feed tube and the loading tube. In the process of moving the partition 217, it can also play a role in scraping the powder at the end of the loading tube flat, and then the loading tube can be removed.

[0043] Specifically, if Figure 5-Figure 6 As shown, the partitions 217 on the same side are all mounted on the connecting rod 219, and the guide rods 220 are detachably mounted on both ends of the connecting rod 219, such as threaded connections, so as to facilitate the separation between the partitions 217 and the guide rods 220, and then facilitate the removal of the partitions 217, and facilitate cleaning before testing different batches or different products. The axis of the guide rod 220 is parallel to the length direction of the rotating frame 201, and the guide rod 220 is inserted into the bottom plate 221, and the bottom plate 221 is mounted on the bottom of the mounting frame 203. A limiting ring 222 and a second spring 223 are provided, and the two ends of the second spring 223 are respectively abutted against the limiting ring 222 and the bottom plate 221 and are always in a compressed state. Under the action of the second spring 223, the connecting rod 219 always has a tendency to move in a direction away from the center of the mounting frame 203, so that the connecting hole 218 on the partition 217 can be more conveniently aligned with the first through hole 205. A first retaining ring 224 is provided at the end of the guide rod 220 for abutting against the bottom plate 221 to prevent the guide rod 220 from falling off the bottom plate 221.

[0044] Specifically, if Figure 5-Figure 6As shown, in order to prevent the partition 217 from shifting during the vibration process, two limiting holes 225 are provided on the partition 217 along its length direction, and the distance between the two limiting holes 225 is the same as the distance between the first through hole 205 and the second through hole 215, and a limiting rod 226 is passed through one of the limiting holes 225. The limiting rod 226 is installed at the bottom of the pressure plate 227, and the pressure plate 227 is sleeved on the vertical rod 228. The vertical rod 228 is installed on the mounting frame 203, and a second retaining ring 229 is provided at the upper end. A third spring 230 is sleeved on the vertical rod 228, and both ends of the third spring 230 are engaged. They respectively abut against the second retaining ring 229 and the pressure plate 227, and are always in a compressed state. Under the action of the third spring 230, the pressure plate 227 always has a tendency to move downward, thereby ensuring that the limiting rod 226 can always pass through one of the limiting holes 225 to ensure the limitation of the partition 217. When the limiting rod 226 passes through the limiting hole 225 closer to the first through hole 205, the connecting hole 218 is aligned with the first through hole 205. When the limiting rod 226 passes through the limiting hole 225 farther from the first through hole 205, the connecting hole 218 is aligned with the second through hole 215.

[0045] In actual operation, before the material carrying tube needs to be removed from the support block 204, the limiting rod 226 is inserted into the limiting hole 225 closer to the first through hole 205, and the connecting hole 218 is aligned with the first through hole 205. When the material carrying tube needs to be removed from the support block 204, an upward force is applied to the pressure plate 227, and the third spring 230 is further compressed, so that the limiting rod 226 releases the limit on the partition 217, and then a force is applied to the connecting rod 219 toward the center of the mounting frame 203, so that the partition 217 moves until the connecting hole 218 is aligned with the third through hole 205. The two through holes 215 are aligned, and the second spring 223 is further compressed at this time, and the force on the pressure plate 227 is released at this time. The pressure plate 227 will move downward under the action of the third spring 230 until the pressure plate 227 abuts the top surface of the support block 204. At this time, the limiting rod 226 is passed through the limiting hole 225 farther from the first through hole 205. When the force applied to the connecting rod 219 is released, the partition 217 is prevented from moving back under the action of the second spring 223, ensuring that the partition 217 separates the loading tube and the feeding tube, and also realizes the leveling of the powder at the end of the loading tube.

[0046] Specifically, if Figure 1-Figure 3As shown, both ends of the support frame 202 are provided with a bidirectional linear mechanism, and the movable end of the bidirectional linear mechanism is connected to a movable plate 231. Two positioning blocks 232 are provided on the side of the movable plate 231, one of the positioning blocks 232 is passed through the mounting frame 203, and the other positioning block 232 is located on the top surface of the mounting frame 203. The mounting frame 203 is clamped by the positioning blocks 232. When the mounting frame needs to be placed on the vibration frame 301, it is only necessary to move the mounting frame 203 downward, and drive the two movable plates 231 to move toward each other through bidirectional linear drumming to release the clamping of the mounting frame 203.

[0047] Specifically, if Figure 7-Figure 8 As shown, support rods 308 are provided at both ends of the vibration frame 301, and support rings 309 are provided on the support rods 308. When the mounting frame 203 moves downward, the support rods 308 pass through the mounting frame 203 until the support rings 309 abut against the bottom surface of the mounting frame 203, thereby supporting the mounting frame 203.

[0048] Specifically, if Figure 7-Figure 8As shown, in order to ensure that the mounting frame 203 vibrates along with the vibration frame 301, two symmetrically arranged blocks 302 are provided at both ends of the vibration frame 301. The upward side of the block 302 is arc-shaped, and a push rod 303 is provided at the opposite end. The push rod 303 is passed through the vertical plate 304, and the vertical plate 304 is installed on the vibration frame 301. One end of the push rod 303 is passed through the L-shaped plate 305, and the L-shaped plate 305 is installed on the outside of the vertical plate 304. A retaining ring 306 is provided on the push rod 303, and a fourth spring 307 is sleeved thereon. The two ends of the fourth spring 307 are respectively abutted against the L The fourth spring 307 is further compressed until the bottom surface of the mounting frame 203 abuts against the support ring 309. At this time, the block 302 is located above the mounting frame 203, and the mounting frame 203 is located between the support ring 309 and the block 302. In order to ensure the stability of the mounting frame 203, the fourth spring 307 is further compressed until the bottom surface of the mounting frame 203 abuts against the support ring 309. At this time, the block 302 is located above the mounting frame 203, and the mounting frame 203 is located between the support ring 309 and the block 302. 3, set the distance between the top surface of the support ring 309 and the bottom surface of the clamping block 302 to the thickness of the mounting frame 203, then remove the positioning block 232 from the mounting frame 203, release the clamping of the mounting frame 203, and in order to facilitate the removal of the vibration frame 301 in the mounting frame 203, when the clamping block 302 is in the reset state, set it to coincide with the projection of the positioning block 232 in the vertical direction, so that before the positioning block 232 is removed from the mounting frame 203, the side of the positioning block 232 located above will contact the end of the clamping block 302, and when the positioning block 232 is removed, the side of the positioning block 232 located above will contact the end of the clamping block 302. 2, the blocking block 302 will be reset under the action of the fourth spring 307, thereby achieving the positioning and clamping of the mounting frame 203; after the vibration ends, the positioning block 232 will be used again to clamp the mounting frame 203. It is only necessary to drive the two movable plates 231 away from each other through the bidirectional linear mechanism, and the positioning block 232 located above will push the blocking block 302 to move, and the fourth spring 307 will be further compressed, and the positioning block 232 located below will pass through the mounting frame 203, thereby achieving the re-clamping of the mounting frame 203, and then the mounting frame 203 can be moved upward.

[0049] More specifically, a plurality of accommodating blocks are arranged in a rectangular array on the vibration frame 301 for accommodating the material-carrying tubes, and the accommodating blocks are all installed in a vibration module, and the vibration module can be installed under the workbench 100.

[0050] Specifically, if Figures 9-11As shown, both sides of the top frame 403 are provided with push plates 410 installed on the workbench 100. The push plates 410 include two vertical sections, and the two vertical sections are connected by a transition section. The distance between the upper vertical section and the center of the top frame 403 is greater than the distance between the lower vertical section and the center of the top frame 403. When it is necessary to weigh the powder in the loading tube, the mounting frame 203 is moved to the top of the carrier frame 401 and driven to move downward. Before the push plate 410 contacts the connecting rod 219, an upward force is first applied to the pressure plate 227 to release the limit on the partition 217. During the movement, the push plate 410 will contact the outer side of the connecting rod 219, forcing the connecting rod 219 to move, and driving the partition 217 to move, so that the connecting hole 218 is aligned with the second through hole 215, and the feed tube and the loading tube are separated. After that, the loading tube can be placed in the bearing part 402, and then the mounting frame 203 is driven to move upward. In order to prevent the powder in the feed tube from spilling, the partition 217 should be ensured not to move. Therefore, before the mounting frame 203 moves upward, the force applied to the pressure plate 227 should be released to achieve the positioning of the partition 217 again.

[0051] Specifically, if Figures 9-11 As shown, a top frame 403 is provided above the carrier frame 401 and is movable in the vertical direction. A plurality of first push rods 404 are provided on the top surface of the top frame 403. When the mounting frame 203 is located above the carrier frame 401 and moves downward, the top surface of the first push rod 404 contacts the bottom surface of the pressure plate 227, thereby lifting the pressure plate 227 upward, releasing the limit on the partition 217, and ensuring that the partition 217 can move to achieve subsequent operations. After the operation on the loading tube is completed, the top frame 403 is moved downward to gradually release the force applied to the pressure plate 227. After the pressure plate 227 is reset, the partition 217 will be limited again to ensure that the partition 217 will not be reset, thereby ensuring the separation of the feeding tube and the loading tube.

[0052] Specifically, if Figures 9-11As shown, in order to ensure that the powder in the communicating hole 218 does not spill arbitrarily, the weighing mechanism 400 further includes a mounting plate 406 located above the carrier 401 and sleeved on the first side rod 405 at both ends. A plurality of second discharge pipes 407 are provided on the mounting plate 406. When the mounting frame 203 is located above the carrier 401, the second discharge pipes 407 are aligned with the second through holes 215, and when the mounting frame 203 moves downward, the upper ends of the second discharge pipes 407 abut against the bottom surface of the support block 204. In order to prevent the second discharge pipes 407 from hindering the smooth downward movement of the mounting frame 203, the lower end of the first side rod 405 is mounted on the workbench 100, and the upper end A third retaining ring 408 is provided at the end for abutting against the mounting plate 406. A fifth spring 409 is sleeved on the first side rod 405. The two ends of the fifth spring 409 abut against the mounting plate 406 and the workbench 100 respectively. Under the action of the fifth spring 409, the mounting plate 406 always has a tendency to move upward. When the mounting frame 203 moves downward, the mounting plate 406 will be forced to move downward as well. The fifth spring 409 is further compressed. When the end of the second discharge pipe 407 contacts the support block 204, the partition 217 has not moved yet, thereby ensuring that the powder in the connecting hole 218 can smoothly fall into the second discharge pipe 407.

[0053] Specifically, if Figure 1 、 Figure 6 、 Figure 12 As shown, the first lifting frame 101 is also provided with a second push rod 107 installed on the workbench 100 around it, which is used to abut against the bottom surface of the pressure plate 227. When the powder in the feed pipe needs to be discharged, the mounting frame 203 is moved to the top of the first lifting frame 101, and the mounting frame 203 is moved downward so that the pressure plate 227 contacts the second push rod 107, thereby forcing the pressure plate 227 to move upward, and then releasing the limit on the partition 217, so that the partition 217 can automatically reset, and align the connecting hole 218 with the first through hole 205, so that the powder in the feed pipe can be automatically discharged.

[0054] Specifically, if Figure 1 、 Figure 6 、 Figure 12As shown, both ends of the first lifting frame 101 are sleeved on the second side rod 104. The lower end of the second side rod 104 is installed on the workbench 100. The upper end is provided with a fourth retaining ring 105 for abutting against the top surface of the first lifting frame 101. The second side rod 104 is sleeved with a sixth spring 106. The two ends of the sixth spring 106 abut against the workbench 100 and the first lifting frame 101 respectively and are always in a compressed state. After the material carrying tubes under the support block 204 are all transferred, the mounting frame 203 can be moved above the first lifting frame 101. Then the mounting frame 203 is moved downward so that the first discharge pipe 103 is passed through the first through hole 205, and the upper end of the first discharge pipe 103 is abutted against the bottom surface of the partition 217. As the mounting frame 203 continues to move downward, the first lifting frame 101 is also forced to move downward, and the sixth spring 106 is further compressed. At this time, the second push rod 107 will lift the pressure plate 227, releasing the limit on the partition 217, and then the partition 217 will automatically reset, and the powder in the feed pipe can automatically fall into the first discharge pipe 103.

[0055] Specifically, if Figure 1 、 Figure 6 As shown, when a new loading tube needs to be placed on the support block 204, the loading tube only needs to be placed on the second lifting frame 102, and then the mounting frame 203 is moved above the second lifting frame 102, and the second lifting frame 102 is moved upward, and then the loading tube is clamped by the clamping plate 207.

[0056] More specifically, Figure 1 As shown, in order to facilitate the movement of the mounting frame 203, a second vertical lifting mechanism is provided on the movable frame 214, and the movable end of the second vertical lifting mechanism is connected to the support frame 202. By driving the second vertical lifting mechanism, the support frame 202 can be driven to move up and down, and the mounting frame 203 can be driven to move up and down synchronously.

[0057] The overall operation process of the loading tube is described as follows:

[0058] First, place multiple material-carrying tubes on the second lifting frame 102, and move the mobile frame 214 along the length direction of the rotating frame 201 to the top of the second lifting frame 102, then move the second lifting frame 102 upward, and then clamp the material-carrying tubes through the clamping plate 207, then add powder into the feeding tube, and move the second lifting frame 102 downward, and then move the mobile frame 214 back along the length direction of the rotating frame 201 to be located above the vibrating frame 301, then move the supporting frame 202 downward, and drive the mounting frame 203 to move synchronously, and then the mounting frame 20 3 is placed on the vibration frame 301, and then the support frame 202 is moved upward. After the vibration is completed, it is transferred back to the support frame 202 through the mounting frame 203. Then the rotating frame 201 is rotated 180 degrees to move the loading tube of the powder vibration to the top of the support frame 401. At this time, the support frame 202 above the support frame 401 is driven to move downward, and the loading tube is transferred to the load-bearing part 402. Then the support frame 202 is moved upward and reset, and the moving frame 214 above the support frame 202 is continued to move toward the first lifting frame 101, and the powder in the feeding tube of the support frame 202 is discharged;

[0059] The other mounting frame 203 without the material carrying tube is located above the vibration frame 301, and the other mounting frame 203 is moved above the second lifting frame 102. At this time, the previous operation is repeated to install the material carrying tube on the mounting frame 203; and then the above work is repeated.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A powder tap density testing device, characterized in that: include: A workbench (100) is provided at both ends with a first lifting frame (101) and a second lifting frame (102) movable in a vertical direction; The transfer mechanism (200) comprises a rotating frame (201) disposed above the workbench (100) and rotatable around the central axis of the workbench (100), a support frame (202) being provided below the rotating frame (201) and movable along its longitudinal direction and vertical direction, a detachably connected mounting frame (203) being provided in the supporting frame (202), a plurality of supporting blocks (204) being provided in a rectangular array in the mounting frame (203), a first through hole (205) being provided in the supporting block (204), a feed pipe being detachably connected to the upper end of the first through hole (205); A plurality of material-carrying tubes are placed in a rectangular array on the second lifting frame (102) for transferring to the lower end of the first through hole (205). After the transfer, the upper end of the material-carrying tube is located in the first through hole (205). A plurality of first discharge tubes (103) are provided in a rectangular array on the first lifting frame (101) for passing through the first through hole (205) to discharge powder in the feed tube. A vibration mechanism (300) includes a vibration frame (301) mounted on the workbench (100) and configured to vibrate itself, and is used to place the mounting frame (203) to vibrate the material-carrying tube after feeding; The weighing mechanism (400) comprises a carrier (401) provided on one side of the vibration mechanism (300), the carrier (401) being provided with a plurality of carrier parts (402) in a rectangular array for placing the vibrated carrier tubes, and a weight detection module being provided at the bottom of the carrier part (402) for weighing the placed carrier tubes; The support block (204) is provided with a second through hole (215) running through it from top to bottom, the distance between the second through hole (215) and the center of the mounting frame (203) is smaller than the distance between the first through hole (205) and the center of the mounting frame (203), and the end of the support block (204) away from the center of the mounting frame (203) is provided with a groove (216), the groove (216) connects the first through hole (205) and the second through hole (215), and when the upper end of the material carrying tube is located in the first through hole (205), the top surface of the material carrying tube is flush with the bottom surface of the groove (216); A partition (217) is provided in the groove (216) and is arranged to move along the length direction thereof. A communication hole (218) is provided on the partition (217) and passes through the partition (217) from top to bottom. When in use, the communication hole (218) is aligned with the first through hole (205) or the second through hole (215).

2. The powder tap density testing device according to claim 1, characterized in that: Side plates (206) are provided on both sides of the mounting frame (203), and a plurality of clamping plates (207) are provided on the inner side of the side plates (206) along the length direction thereof, and the clamping plates (207) are U-shaped. A clamping ring is provided on the outer wall of the loading tube. After transfer, the loading tube is fitted into the clamping plates (207), and the upper and lower sides of the clamping ring respectively abut against the bottom surface of the support block (204) and the top surface of the clamping plates (207); a bracket (208) is provided on the side plates (206), and the bracket (208) is sleeved on the cross bar (209), and the cross bar (209) is mounted on the protrusion (210), and the protrusion (210) is mounted on the mounting frame (203); both ends of the cross bar (209) are sleeved with a first spring (211), and the two ends of the first spring (211) respectively abut against the protrusion (210) and the bracket (208), and are always in a compressed state.

3. The powder tap density testing device according to claim 2, characterized in that: A pressing block (212) is provided between the brackets (208), and the pressing block (212) is in an inverted trapezoidal shape. When in use, its two sides are in contact with the brackets (208). A recess (213) is provided at the bottom of the pressing block (212) for passing through the cross bar (209). The top of the pressing block (212) is connected to the moving end of the first vertical lifting mechanism. The first vertical lifting mechanism is installed on the moving frame (214). The moving frame (214) is slidably fitted in the rotating frame (201) and is movable along its length direction. A second vertical lifting mechanism is provided on the moving frame (214), and the moving end of the second vertical lifting mechanism is connected to the support frame (202).

4. The powder tap density testing device according to claim 1, characterized in that: The partitions (217) located on the same side are all mounted on the connecting rod (219), and guide rods (220) are detachably mounted on both ends of the connecting rod (219), the axis of the guide rod (220) is parallel to the length direction of the rotating frame (201), and is passed through the bottom plate (221), and the bottom plate (221) is mounted on the bottom of the mounting frame (203), and a limiting ring (222) and a second spring (223) are provided on the guide rod (220), and the two ends of the second spring (223) respectively abut against the limiting ring (222) and the bottom plate (221), and are always in a compressed state, and a first retaining ring (224) is provided at the end of the guide rod (220) for abutting against the bottom plate (221); Two limiting holes (225) are provided on the partition (217) along its length direction, wherein a limiting rod (226) is passed through one of the limiting holes (225), and the limiting rod (226) is installed at the bottom of the pressure plate (227). The pressure plate (227) is sleeved on the vertical rod (228), and the vertical rod (228) is installed on the mounting frame (203), and a second retaining ring (229) is provided on the upper end. A third spring (230) is sleeved on the vertical rod (228), and the two ends of the third spring (230) respectively abut against the second retaining ring (229) and the pressure plate (227), and are always in a compressed state.

5. The powder tap density testing device according to claim 1, characterized in that: Both ends of the support frame (202) are provided with a bidirectional linear mechanism, the movable end of the bidirectional linear mechanism is connected to a movable plate (231), and two positioning blocks (232) are provided on the side of the movable plate (231), one of the positioning blocks (232) is inserted into the mounting frame (203), and the other positioning block (232) is located on the top surface of the mounting frame (203).

6. The powder tap density testing device according to claim 1, characterized in that: Two symmetrically arranged clamping blocks (302) are provided at both ends of the vibration frame (301), the upward side of the clamping block (302) is arc-shaped, and the opposite end is provided with a push rod (303), the push rod (303) is inserted into the vertical plate (304), and the vertical plate (304) is installed on the vibration frame (301), one end of the push rod (303) is inserted into the L-shaped plate (305), and the L-shaped plate (305) is installed on the outside of the vertical plate (304), the push rod (303) is provided with a retaining ring (306), and is sleeved with a fourth spring (307), the two ends of the fourth spring (307) respectively abut against the L-shaped plate (305) and the retaining ring (306), and are always in a compressed state; Support rods (308) are provided at both ends of the vibration frame (301), and support rings (309) are provided on the support rods (308). The distance between the top surface of the support ring (309) and the bottom surface of the clamping block (302) is equal to the thickness of the mounting frame (203). When in use, the mounting frame (203) is sleeved on the support rods (308) and is located between the support ring (309) and the clamping block (302).

7. The powder tap density testing device according to claim 4, characterized in that: A top frame (403) is provided above the carrier frame (401) and is movable in the vertical direction. A plurality of first push rods (404) are provided on the top surface of the top frame (403). When in use, the top surfaces of the first push rods (404) are in contact with the bottom surface of the pressing plate (227). Both sides of the top frame (403) are provided with push plates (410) installed on the workbench (100), and the push plates (410) include two vertical sections, and the two vertical sections are connected by a transition section. The distance between the upper vertical section and the center of the top frame (403) is greater than the distance between the lower vertical section and the center of the top frame (403). When in use, the push plates (410) are in contact with the outer side of the connecting rod (219).

8. The powder tap density testing device according to claim 1, characterized in that: The weighing mechanism (400) further includes a mounting plate (406) located above the carrier frame (401) and sleeved on the first side rod (405) at both ends. A plurality of second discharge pipes (407) are provided on the mounting plate (406). When in use, the second discharge pipes (407) are aligned with the second through holes (215), and the upper ends of the second discharge pipes (407) abut against the bottom surface of the support block (204). The lower end of the first side rod (405) is mounted on the workbench (100), and a third retaining ring (408) is provided on the upper end for abutting against the mounting plate (406). A fifth spring (409) is sleeved on the first side rod (405), and the two ends of the fifth spring (409) abut against the mounting plate (406) and the workbench (100), respectively.

9. The powder tap density testing device according to claim 4, characterized in that: The two ends of the first lifting frame (101) are sleeved on the second side rod (104), the lower end of the second side rod (104) is installed on the workbench (100), and the upper end is provided with a fourth retaining ring (105) for abutting against the top surface of the first lifting frame (101), and the second side rod (104) is sleeved with a sixth spring (106), the two ends of the sixth spring (106) respectively abut against the workbench (100) and the first lifting frame (101), and are always in a compressed state; Second push rods (107) mounted on the workbench (100) are also provided around the first lifting frame (101) and are used to abut against the bottom surface of the pressing plate (227).

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