Powder tap density testing equipment

Abstract

The invention discloses powder tap density testing equipment, and relates to the field of performance detection. The transferring mechanism comprises a rotating frame which is arranged on the workbench and rotates around the axis of the rotating frame, a supporting frame which moves in the length direction and the vertical direction of the rotating frame is arranged below the rotating frame, a detachable mounting frame is arranged in the supporting frame, a plurality of supporting blocks are arranged in the mounting frame in a rectangular array mode, and first through holes are formed in the supporting blocks. A feeding pipe and a material carrying pipe are arranged at the two ends of the first through hole correspondingly, and the upper end of the material carrying pipe is located in the first through hole; the vibrating mechanism comprises a vibrating frame which is mounted on the workbench, is arranged in a self-vibrating manner and is used for placing the mounting frame; and the weighing mechanism comprises a bearing frame arranged on one side of the vibration mechanism, a plurality of bearing parts are arranged on the bearing frame in a rectangular array mode and used for containing the material carrying pipes, and weight detection modules are arranged at the bottoms of the bearing parts and used for weighing the material carrying pipes. The device can automatically transfer the material loading pipe, reduces the possibility of powder attachment, and improves the detection efficiency while ensuring the precision.

Description

Technical Field

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

[0002] After the production of powder materials such as lithium iron phosphate, multi-dimensional inspections are required to ensure their performance, safety, and reliability, such as particle size distribution, specific surface area, tap density, etc. In particular, the tap density can reflect the energy density and volume capacity of the battery. The higher the tap density, the greater the mass of the active material per unit volume, and the higher the energy density and volume capacity of the battery. The tap density refers to the mass per unit volume of the powder material after being tamped under specified conditions.

[0003] There are mainly two methods in the prior art for detecting the tap density of powder: Fixed mass method: Place a fixed mass of powder in a transparent graduated cylinder, then place the transparent graduated cylinder in a vibration device. After the vibration ends, read the tamped volume of the powder in the graduated cylinder, and calculate the material density through the formula: tap density = mass / tamped volume.

[0004] Fixed volume method: Place a certain mass of powder in a combined graduated cylinder. The combined graduated cylinder consists of two glass tubes with the same inner diameter up and down. The upper glass tube is provided with a through hole, and the lower end of the lower glass tube is hermetically sealed. The powder is gradually compacted by vibration, then the upper glass tube is removed, and the surface of the powder is scraped flat along the edge of the sealed glass tube. Measure the mass of the powder in the sealed glass tube, and the tap density of the powder can be calculated.

[0005] Although the fixed mass method can ensure the accuracy of the mass, during the process of reading the value, due to the fact that the surface of the powder may not be completely flat, there are problems such as protrusions, peaks, and occasional spherical agglomerations, and due to the uncertainty of manual reading, errors will occur in the calculation, and the performance of the powder cannot be truly reflected. Although the fixed volume method eliminates the problem of inaccurate sample volume, when disassembling the glass tube, the powder will fall on the lower sealed glass tube, resulting in inaccurate weighing, and the operation is cumbersome, which is not conducive to the rapid progress of the detection process. In the actual production process, in order to reflect the performance of the powder as accurately as possible, usually two methods are used to detect the powder as much as possible. Whether it is the fixed mass method or the fixed volume method, the graduated cylinder needs to be manually transferred, and when the graduated cylinder is placed in the vibration device, in order to prevent the graduated cylinder from falling off, usually rubber is used to clamp the graduated cylinder to achieve an interference fit of the graduated cylinder, so that only one graduated cylinder can be operated at a time, which also makes it very inconvenient to pick up the graduated cylinder, with low efficiency. Especially in the fixed volume method, the outer wall of the graduated cylinder is easily attached with powder, which further causes errors in weighing. Summary of the Invention

[0006] In view of the deficiencies of the above-mentioned related prior arts, the present application provides a powder tap density testing device, which can automatically transfer the loading tube, reduce the possibility of powder adhesion, ensure accuracy, and improve the detection efficiency.

[0007] To achieve the above object, the present invention adopts the following technologies: A powder tap density testing device includes: a workbench, a transfer mechanism, a vibration mechanism, and a weighing mechanism.

[0008] At both ends of the workbench, a first lifting frame and a second lifting frame are respectively arranged to move vertically; the transfer mechanism includes a rotating frame arranged above the workbench and rotating around its own central axis. Below the rotating frame, a support frame is arranged to move along its length direction and vertically. The support frame is provided with a detachable mounting frame. The mounting frame is provided with a plurality of support blocks arranged in a rectangular array. The support blocks are provided with first through holes. The upper and lower ends of the first through holes are detachably connected with a feed pipe; a plurality of loading tubes are placed in a rectangular array on the second lifting frame for transfer to the lower end of the first through hole. After transfer, the upper end of the loading tube is located in the first through hole. A plurality of first discharge pipes are arranged in a rectangular array on the first lifting frame for passing through the first through hole to discharge the powder in the feed pipe; the vibration mechanism includes a vibration frame installed on the workbench and vibrating itself, for placing the mounting frame to vibrate the loaded loading tube after feeding; the weighing mechanism includes a bearing frame arranged on one side of the vibration mechanism. The bearing frame is provided with a plurality of bearing parts arranged in a rectangular array for placing the vibrated loading tube. A weight detection module is arranged at the bottom of the bearing part for weighing the placed loading tube.

[0009] Further, side plates are arranged on both sides of the mounting frame. A plurality of clamping plates are arranged along the length direction of the inner side of the side plates. The clamping plates are U-shaped. A clamping ring is arranged on the outer wall of the loading tube. After transfer, the loading tube is fitted in the clamping plates, 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 support is arranged on the side plate. The support is sleeved on a cross bar. The cross bar is installed on a convex block. The convex block is installed on the mounting frame. First springs are sleeved on both ends of the cross bar. The two ends of the first spring respectively abut against the convex block and the support and are always in a compressed state.

[0010] Further, a pressing block is arranged between the supports. The pressing block is in an inverted trapezoid shape. During application, its two sides contact the supports. A concave part is arranged at the bottom of the pressing block for passing through the cross bar. The top of the pressing block is connected to the moving end of a first vertical lifting mechanism. The first vertical lifting mechanism is installed on a moving frame. The moving frame is slidably fitted in the rotating frame and moves along its length direction. A second vertical lifting mechanism is arranged on the moving frame. The moving end of the second vertical lifting mechanism is connected to the support frame.

[0011] Further, a second through hole penetrating up and down is provided on the support block. 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. The groove communicates with the first through hole and the second through hole. When the material loading pipe is located in the first through hole, the top surface of the material loading pipe is flush with the bottom surface of the groove. A partition plate is movably arranged along the length direction of the groove. A communication hole penetrating up and down is provided on the partition plate. During application, the communication hole is aligned with the first through hole or the second through hole.

[0012] Further, the partition plates on the same side are all mounted on a connecting rod. Guide rods are detachably mounted at both ends of the connecting rod. The axis of the guide rod is parallel to the length direction of the rotating frame and penetrates through the bottom plate. The bottom plate is mounted 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 against the limiting ring and the bottom plate and are always in a compressed state. A first retaining ring is provided at the end of the guide rod for abutting against the bottom plate.

[0013] Further, two limiting holes are provided along the length direction of the partition plate. A limiting rod is inserted through one of the limiting holes. The limiting rod is mounted at the bottom of a pressing plate. The pressing plate is sleeved on a vertical rod. The vertical rod is mounted on the mounting frame and a second retaining ring is provided at the upper end. A third spring is sleeved on the vertical rod. The two ends of the third spring respectively abut against the second retaining ring and the pressing plate and are always in a compressed state.

[0014] Further, bidirectional linear mechanisms are provided at both ends of the support frame. The moving ends of the bidirectional linear mechanisms are connected with a moving plate. Two positioning blocks are provided on the side surface of the moving plate. One of the positioning blocks penetrates through the mounting frame, and the other positioning block is located on the top surface of the mounting frame.

[0015] Further, two symmetrically arranged clamping blocks are provided at both ends of the vibrating frame. The upward side of the clamping block is arc-shaped, and a push rod is provided at the opposite end. The push rod penetrates through a vertical plate. The vertical plate is mounted on the vibrating frame. One end of the push rod penetrates through an L-shaped plate. The L-shaped plate is mounted on the outside of the vertical plate. A retaining ring is provided on the push rod, and a fourth spring is sleeved on the push rod. 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.

[0016] Further, support rods are provided at both ends of the vibrating frame. A support ring is provided on the support rod. The distance between the top surface of the support ring and the bottom surface of the clamping block is equal to the thickness of the mounting frame. During application, the mounting frame is sleeved on the support rod and is located between the support ring and the clamping block.

[0017] Further, a top frame is arranged above the carrier frame and is movably arranged in the vertical direction. A plurality of first ejector rods are arranged on the top surface of the top frame. During application, the top surface of the first ejector rod contacts the bottom surface of the pressing plate. On both sides of the top frame, push plates are arranged on the workbench. Each push plate includes 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. During application, the push plate contacts the outer side of the connecting rod.

[0018] Further, the weighing mechanism further includes a mounting plate located above the carrier frame and sleeved on the first side rods at both ends. A plurality of second discharge pipes are arranged on the mounting plate. During application, 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 ends of the first side rods are mounted on the workbench, and the upper ends are provided with third retaining rings for abutting against the mounting plate. A fifth spring is sleeved on the first side rods, and both ends of the fifth spring abut against the mounting plate and the workbench respectively.

[0019] The beneficial effects of the present invention are as follows: The support block can transfer multiple loading pipes simultaneously, so as to vibrate and weigh the powder in multiple loading pipes at the same time, improving the efficiency; The partition separates the loading pipes from the feeding pipes, and at the same time, the powder outside the loading pipes is collected through the discharge pipes, reducing the possibility of powder adhering to the loading pipes, thereby further ensuring the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are only for illustrating the selected embodiments, not all possible implementation schemes, and are not intended to limit the scope of the present invention.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the embodiment of the present application.

[0022] Figure 2 It is a three-dimensional schematic diagram of the transfer mechanism of the embodiment of the present application.

[0023] Figure 3 It is an installation schematic diagram between the mounting frame and the support frame of the embodiment of the present application.

[0024] Figure 4 It is a cross-sectional schematic diagram between the mounting frame and the support frame of the embodiment of the present application.

[0025] Figure 5 It is a three-dimensional diagram of the mounting frame of the embodiment of the present application.

[0026] Figure 6 It is a cross-sectional structure schematic diagram of the mounting frame of the embodiment of the present application.

[0027] Figure 7 It is a three-dimensional schematic diagram of the vibration mechanism of the embodiment of the present application.

[0028] Figure 8 Schematic three-dimensional view of the mounting bracket of the embodiment of the present application moved onto the vibration bracket.

[0029] Figure 9 Schematic three-dimensional view of the weighing mechanism of the embodiment of the present application.

[0030] Figure 10 Schematic three-dimensional view of the mounting bracket of the embodiment of the present application moved onto the bearing bracket.

[0031] Figure 11 Schematic cross-sectional view of the mounting bracket of the embodiment of the present application moved onto the bearing bracket.

[0032] Figure 12 Schematic installation view of the first discharge pipe of the embodiment of the present application.

[0033] Description of reference numerals: 100 - workbench, 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 bracket, 204 - support block, 205 - first through hole, 206 - side plate, 207 - clamping plate, 208 - bracket, 209 - cross bar, 210 - convex block, 211 - first spring, 212 - pressing block, 213 - concave part, 214 - moving frame, 215 - second through hole, 216 - groove, 217 - partition plate, 218 - communication hole, 219 - connecting rod, 220 - 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 bracket, 302 - clamping block, 303 - push rod, 304 - vertical plate, 305 - L-shaped plate, 306 - retaining ring, 307 - fourth spring, 308 - support rod, 309 - support ring, 401 - bearing bracket, 402 - bearing part, 403 - top frame, 404 - first ejector rod, 405 - first side rod, 406 - mounting plate, 407 - second discharge pipe, 408 - third retaining ring, 409 - fifth spring, 410 - push plate. Detailed Description of the Embodiment

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. However, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.

[0035] As Figures 1 to 12As shown in the figure, 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.

[0036] The transfer mechanism 200 includes a rotating frame 201 disposed above the workbench 100 and rotatably arranged around its own central axis. Below the rotating frame 201, there is a support frame 202 that moves along its length direction and the vertical direction. The support frame 202 is provided with a detachable mounting frame 203. The mounting frame 203 is provided with a plurality of support blocks 204 arranged in a rectangular array. The support block 204 is provided with a first through hole 205. The upper and lower ends of the first through hole 205 are respectively provided with a detachable feed pipe and a material loading pipe, and the upper end of the material loading pipe is located in the first through hole 205. During use, powder is added to the material loading pipe through the feed pipe, and the powder should exceed the material loading pipe, and the top of the powder is located in the feed pipe; the vibration mechanism 300 includes a vibration frame 301 mounted on the workbench 100 and vibrating itself, which is used to place the mounting frame 203. The vibration of the vibration frame 301 drives the material loading pipe on the mounting frame 203 to vibrate, so that the powder is filled and compacted in the material loading pipe; the weighing mechanism 400 includes a bearing frame 401 disposed on one side of the vibration mechanism 300. The bearing frame 401 is provided with a plurality of bearing parts 402 arranged in a rectangular array, which are used to place the material loading pipe on the mounting frame 203 where the powder has been vibrated and compacted. And a weight detection module is provided at the bottom of the bearing part 402 for weighing the powder in the material loading pipe; both ends of the workbench 100 are respectively provided with a first lifting frame 101 and a second lifting frame 102 that move along the vertical direction. The vibration mechanism 300 and the weighing mechanism 400 are sequentially located between the first lifting frame 101 and the second lifting frame 102. The first lifting frame 101 is provided with a plurality of first discharge pipes 103 arranged in a rectangular array, which are used to pass through the first through hole 205 to discharge the powder in the feed pipe. A plurality of material loading pipes are placed on the second lifting frame 102 in a rectangular array for transfer to the support block 204.

[0037] Specifically, as Figures 1 - 4As shown in the figure, side plates 206 are provided on both sides of the mounting bracket 203. Along the length direction of the inner side of the side plate 206, a plurality of clamping plates 207 are provided. The clamping plates 207 are U-shaped. The side surface of the material loading pipe is fitted into the clamping plates 207. A clamping ring is provided on the outer wall of the material loading pipe. The upper and lower sides of the clamping ring are respectively abutted against the bottom surface of the support block 204 and the top surface of the clamping plate 207, so as to prevent the material loading pipe from moving up and down during vibration. A bracket 208 is provided on the side plate 206. The bracket 208 is sleeved on the cross bar 209. The cross bar 209 is installed on the convex block 210. The convex block 210 is installed on the mounting bracket 203. First springs 211 are sleeved on both ends of the cross bar 209. The two ends of the first spring 211 are respectively abutted against the convex block 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 towards the center of the mounting bracket 203, so as to ensure the limitation of the material loading pipe.

[0038] The feeding pipe can be installed on the support block 204 by means of threaded connection. And in order to facilitate the observation of the powder state in the material loading pipe and the feeding pipe, the material loading pipe and the feeding pipe are usually made of transparent materials. During vibration, if the volume change between two adjacent vibrations is less than 2 mL, the vibration can be stopped.

[0039] Specifically, as Figures 2 - 4 shown in the figure, a pressing block 212 is provided between the brackets 208. The pressing block 212 is in an inverted trapezoid shape. 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 arranged to move along its length direction. When it is necessary to remove the material loading pipe from the support block 204, the first vertical lifting mechanism is used to drive the pressing block 212 to move downward, so that the two sides of the pressing block 212 are in contact with the brackets 208, thereby forcing the two brackets 208 to move away from each other and driving the clamping plates 207 to move, so as to release the limitation of the material loading pipe. And a concave portion 213 is provided at the bottom of the pressing block 212 for passing through the cross bar 209 to avoid interference during the downward movement of the pressing block 212.

[0040] Specifically, as Figures 5 - 6As shown, a second through hole 215 penetrating up and down is provided on the support block 204. The distance between the second through hole 215 and the center of the mounting frame 203 is less than the distance between the first through hole 205 and the center of the mounting frame 203. A groove 216 is provided at one end of the support block 204 away from the center of the mounting frame 203. The groove 216 communicates with the first through hole 205 and the second through hole 215, and the top surface of the material loading pipe is flush with the bottom surface of the groove 216. A partition plate 217 movably arranged along its length direction is arranged in the groove 216, so the top surface of the material loading pipe is flush with the bottom surface of the partition plate 217. A communication hole 218 penetrating up and down is provided on the partition plate 217. When the material loading pipe is located on the support block 204 and before the vibration ends, the communication hole 218 is aligned with the first through hole 205 and the material loading pipe at the same time. After the vibration ends and when the material loading pipe needs to be removed from the support block 204, in order to prevent the powder in the feed pipe from spilling downward during this process, the partition plate 217 can be driven to move so that the communication hole 218 is aligned with the second through hole 215. At this time, the powder in the communication hole 218 will be discharged through the second through hole 215, and the partition plate 217 will separate the feed pipe and the material loading pipe. During the movement of the partition plate 217, it can also play a role in leveling the powder at the end of the material loading pipe, and then the material loading pipe can be removed.

[0041] Specifically, as Figures 5 - 6 shown, the partition plates 217 on the same side are all installed on the connecting rod 219. Guide rods 220 are detachably installed at both ends of the connecting rod 219, such as by threaded connection, so as to facilitate the separation between the partition plate 217 and the guide rod 220, and further facilitate the removal of the partition plate 217. Before testing different batches or different products, it is convenient to clean. The axis of the guide rod 220 is parallel to the length direction of the rotating frame 201, and the guide rod 220 is arranged in the bottom plate 221. The bottom plate 221 is installed at the bottom of the mounting frame 203. A limiting ring 222 and a second spring 223 are arranged on the guide rod 220. 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. 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 communication hole 218 on the partition plate 217 can be more conveniently aligned with the first through hole 205. A first retaining ring 224 is arranged at the end of the guide rod 220 for abutting against the bottom plate 221 to prevent the guide rod 220 from disengaging from the bottom plate 221.

[0042] Specifically, as Figures 5 - 6As shown, in order to prevent the partition plate 217 from shifting during vibration, two limiting holes 225 are provided on the partition plate 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. A limiting rod 226 is inserted through one of the limiting holes 225. 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. The vertical rod 228 is installed on the mounting bracket 203, and a second retaining ring 229 is provided at the upper end. A third spring 230 is sleeved on the vertical rod 228. 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. Under the action of the third spring 230, the pressure plate 227 always has a tendency to move downward, so as to ensure that the limiting rod 226 can always be inserted through one of the limiting holes 225 to ensure the limitation of the partition plate 217. When the limiting rod 226 is inserted through the limiting hole 225 closer to the first through hole 205, the communication hole 218 is aligned with the first through hole 205. When the limiting rod 226 is inserted through the limiting hole 225 farther from the first through hole 205, the communication hole 218 is aligned with the second through hole 215.

[0043] During the actual operation process, before the loading pipe needs to be removed from the support block 204, when the limiting rod 226 is inserted through the limiting hole 225 closer to the first through hole 205, the communication hole 218 is aligned with the first through hole 205. When the loading pipe needs to be removed from the support block 204, an upward acting force is applied to the pressure plate 227, and the third spring 230 is further compressed to release the limitation of the partition plate 217 by the limiting rod 226. Then, an acting force towards the center of the mounting bracket 203 is applied to the connecting rod 219 to move the partition plate 217 until the communication hole 218 is aligned with the second through hole 215. At this time, the second spring 223 is further compressed, and the acting 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 against the top surface of the support block 204. At this time, the limiting rod 226 is inserted through the limiting hole 225 farther from the first through hole 205. When the acting force applied to the connecting rod 219 is released, it is avoided that the partition plate 217 moves back under the action of the second spring 223, ensuring the separation of the loading pipe and the feeding pipe by the partition plate 217 and also leveling the powder at the end of the loading pipe.

[0044] Specifically, as Figures 1 - 3As shown, bidirectional linear mechanisms are provided at both ends of the support frame 202. The moving ends of the bidirectional linear mechanisms are connected to a moving plate 231. Two positioning blocks 232 are provided on the side of the moving plate 231. One of the positioning blocks 232 passes 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 vibrating frame 301, only the mounting frame 203 needs to be moved downward, and the two moving plates 231 are driven to move towards each other by the bidirectional linear mechanism to release the clamping of the mounting frame 203.

[0045] Specifically, as Figures 7 - 8 shown, support rods 308 are provided at both ends of the vibrating frame 301. Support rings 309 are provided on the support rods 308. During the downward movement of the mounting frame 203, 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 to support the mounting frame 203.

[0046] Specifically, as Figures 7 - 8As shown in the figure, in order to ensure that the mounting bracket 203 vibrates following the vibration bracket 301, two symmetrically arranged clamping blocks 302 are provided at both ends of the vibration bracket 301. The upward side of the clamping block 302 is arc-shaped, and a push rod 303 is provided at the opposite end. The push rod 303 passes through the vertical plate 304, and the vertical plate 304 is mounted on the vibration bracket 301. One end of the push rod 303 passes through the L-shaped plate 305, and the L-shaped plate 305 is mounted 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 respectively abut against the L-shaped plate 305 and the retaining ring 306, and is always in a compressed state. During the downward movement of the mounting bracket 203, the edges on both sides of the mounting bracket 203 will contact the arc surface of the clamping block 302, and as the mounting bracket 203 continues to move downward, it will force the clamping block 302 to move, and the fourth spring 307 will be further compressed until the bottom surface of the mounting bracket 203 abuts against the support ring 309. At this time, the clamping block 302 is located above the mounting bracket 203, and the mounting bracket 203 is located between the support ring 309 and the clamping block 302. And in order to ensure the limitation of the mounting bracket 203, the distance between the top surface of the support ring 309 and the bottom surface of the clamping block 302 is set to the thickness of the mounting bracket 203. Then, the positioning block 232 is removed from the mounting bracket 203 to release the clamping of the mounting bracket 203. And in order to facilitate the removal of the vibration bracket 301 from the mounting bracket 203, when the clamping block 302 is in the reset state, its projection in the vertical direction coincides with the positioning block 232. Then, before the positioning block 232 is removed from the mounting bracket 203, the side surface of the upper positioning block 232 will contact the end of the clamping block 302. When the positioning block 232 is removed, the clamping block 302 will be reset under the action of the fourth spring 307 to realize the positioning and clamping of the mounting bracket 203; after the vibration ends, the mounting bracket 203 is clamped again by using the positioning block 232. Only by driving the two moving plates 231 to move away from each other through the bidirectional linear mechanism, the upper positioning block 232 will push the clamping block 302 to move, and the fourth spring 307 will be further compressed. And the lower positioning block 232 will pass through the mounting bracket 203 to realize the re-clamping of the mounting bracket 203. After that, the mounting bracket 203 can be moved upward.

[0047] More specifically, a plurality of receiving blocks are arranged in a rectangular array on the vibration bracket 301 for receiving the loading pipes, and the receiving blocks are all mounted in a vibration module, and the vibration module is mounted under the workbench 100.

[0048] Specifically, as Figures 9 - 11As shown in the figure, push plates 410 are installed on both sides of the top frame 403 and are mounted on the workbench 100. The push plate 410 includes 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 material loading pipe, the mounting frame 203 is moved above the bearing frame 401 and driven to move downward. Before the push plate 410 contacts the connecting rod 219, an upward acting force is first applied to the pressing plate 227 to release the limit on the partition plate 217. During the subsequent movement, the push plate 410 will contact the outer side of the connecting rod 219 and force the connecting rod 219 to move, driving the partition plate 217 to move so that the communication hole 218 is aligned with the second through hole 215 and separating the feed pipe and the material loading pipe. Then, the material loading pipe can be placed in the bearing part 402. After that, the mounting frame 203 is driven to move upward. In order to prevent the powder in the feed pipe from spilling, it should be ensured that the partition plate 217 does not move. Then, before the mounting frame 203 moves upward, the acting force applied to the pressing plate 227 should be released first to reposition the partition plate 217 again.

[0049] Specifically, as Figures 9 - 11 shown, a top frame 403 that moves vertically is provided above the bearing frame 401. A plurality of first ejector rods 404 are provided on the top surface of the top frame 403. When the mounting frame 203 is located above the bearing frame 401 and moves downward, the top surface of the first ejector rod 404 contacts the bottom surface of the pressing plate 227, thereby jacking up the pressing plate 227 and releasing the limit on the partition plate 217, ensuring that the partition plate 217 can move to achieve subsequent operations. After the operation on the material loading pipe is completed, the top frame 403 is moved downward to gradually release the acting force applied to the pressing plate 227. Then, after the pressing plate 227 is reset, it will reapply the limit to the partition plate 217 again, ensuring that the partition plate 217 will not be reset, and further ensuring the separation of the feed pipe and the material loading pipe.

[0050] Specifically, as Figures 9 - 11As shown in the figure, in order to ensure that the powder in the communication hole 218 does not spill randomly, 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. 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 ends of the first side rods 405 are mounted on the workbench 100, and third retaining rings 408 are provided at the upper ends for abutting against the mounting plate 406. A fifth spring 409 is sleeved on the first side rod 405, and both 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. During the downward movement of the mounting frame 203, it will force the mounting plate 406 to move downward as well, and the fifth spring 409 will be further compressed. When the end of the second discharge pipe 407 contacts the support block 204, the partition plate 217 has not moved yet, so as to ensure that the powder in the communication hole 218 can smoothly fall into the second discharge pipe 407.

[0051] Specifically, as Figure 1 , Figure 6 , Figure 12 shown, second ejector rods 107 mounted on the workbench 100 are further provided around the first lifting frame 101 for abutting against the bottom surface of the pressing plate 227. When it is necessary to discharge the powder in the feed pipe, the mounting frame 203 is moved above the first lifting frame 101, and the mounting frame 203 is moved downward to make the pressing plate 227 contact the second ejector rods 107, thereby forcing the pressing plate 227 to move upward, and then releasing the limit on the partition plate 217, enabling the partition plate 217 to automatically reset and aligning the communication hole 218 with the first through hole 205, so that the powder in the feed pipe can be automatically discharged.

[0052] Specifically, as Figure 1 , Figure 6 , Figure 12As shown in the figure, 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, and the upper end is provided with a fourth retaining ring 105 for abutting against the top surface of the first lifting frame 101. A sixth spring 106 is sleeved on the second side rod 104. Both 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. After all the loading pipes under the support block 204 are transferred, the mounting frame 203 can be moved above the first lifting frame 101, and then the mounting frame 203 is moved downward so that the first discharge pipe 103 passes through the first through hole 205 and the upper end of the first discharge pipe 103 abuts against the bottom surface of the partition plate 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 ejector rod 107 will push up the pressure plate 227 to release the limit on the partition plate 217, and then the partition plate 217 will automatically reset, and the powder in the feed pipe can automatically fall into the first discharge pipe 103.

[0053] Specifically, as Figure 1 、 Figure 6 shown in the figure, when a new loading pipe needs to be placed on the support block 204, only need to place the loading pipe on the second lifting frame 102, then move the mounting frame 203 above the second lifting frame 102, and move the second lifting frame 102 upward, and then clamp the loading pipe with the clamping plate 207.

[0054] More specifically, as Figure 1 shown in the figure, in order to facilitate the movement of the mounting frame 203, a second vertical lifting mechanism is provided on the moving frame 214. The moving 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.

[0055] The overall operation process of the loading pipe is described as follows: First, place a plurality of material-carrying tubes on the second lifting frame 102, and move the moving frame 214 along the length direction of the rotating frame 201 until it moves above the second lifting frame 102. Then move the second lifting frame 102 upward. Subsequently, clamp the material-carrying tubes through the clamping plate 207. Then, powder can be put into the feed pipe, and the second lifting frame 102 is moved downward. After that, the moving frame 214 is moved back along the length direction of the rotating frame 201 until it is located above the vibrating frame 301. Then move the support frame 202 downward and drive the mounting frame 203 to move synchronously. Then place the mounting frame 203 on the vibrating frame 301. Subsequently, move the support frame 202 upward. After the vibration ends, transfer the mounting frame 203 back into the support frame 202 again. Then rotate the rotating frame 201 by 180 degrees so that the material-carrying tube with the powder vibrated is moved above the bearing frame 401. At this time, drive the support frame 202 above the bearing frame 401 to move downward, and transfer the material-carrying tube into the bearing part 402. Then move the support frame 202 upward to reset. Continue to drive the moving frame 214 above the support frame 202 to move towards the first lifting frame 101, and discharge the powder in the feed pipe of the support frame 202; Another mounting frame 203 without a material-carrying tube installed is located above the vibrating frame 301, and move the other mounting frame 203 above the second lifting frame 102. At this time, repeat the previous operations to install a material-carrying tube on this mounting frame 203; then repeat the above work.

[0056] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A powder tapped density testing device, characterized in that Including: A workbench (100) with a first lifting frame (101) and a second lifting frame (102) movably arranged in the vertical direction at both ends thereof; A transfer mechanism (200), including a rotating frame (201) arranged above the workbench (100) and rotatably arranged around the central axis of the workbench (100). A support frame (202) is arranged below the rotating frame (201) and movably arranged in the length direction and the vertical direction thereof. A detachable mounting frame (203) is arranged in the support frame (202). A plurality of support blocks (204) are arranged in a rectangular array in the mounting frame (203). A first through hole (205) is arranged in the support block (204), and a feed pipe is detachably connected to the upper end of the first through hole (205); A plurality of loading pipes are placed in a rectangular array on the second lifting frame (102) for being transferred to the lower end of the first through hole (205). After transfer, the upper end of the loading pipe is located in the first through hole (205). A plurality of first discharge pipes (103) are arranged in a rectangular array on the first lifting frame (101) for passing through the first through hole (205) to discharge the powder in the feed pipe; A vibration mechanism (300), including a vibrating frame (301) installed on the workbench (100) and vibrating itself, for placing the mounting frame (203) to vibrate the loading pipe after feeding; A weighing mechanism (400), including a bearing frame (401) arranged on one side of the vibration mechanism (300). A plurality of bearing parts (402) are arranged in a rectangular array on the bearing frame (401) for placing the vibrating loading pipe. A weight detection module is arranged at the bottom of the bearing part (402) for weighing the placed loading pipe.

2. The tapped density testing device for powder according to claim 1, wherein Side plates (206) are arranged on both sides of the mounting frame (203). A plurality of clamping plates (207) are arranged along the length direction on the inner side of the side plates (206). The clamping plates (207) are U-shaped. A clamping ring is arranged on the outer wall of the loading pipe. After transfer, the loading pipe is fitted in 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 plate (207). A bracket (208) is arranged on the side plate (206). The bracket (208) is sleeved on a cross bar (209). The cross bar (209) is installed on a convex block (210). The convex block (210) is installed 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 convex block (210) and the bracket (208), and are always in a compressed state.

3. The powder tapped density testing device according to claim 2, wherein, A pressure block (212) is provided between the brackets (208). The pressure block (212) is in the shape of an inverted trapezoid. During application, its two sides are in contact with the brackets (208). A recess (213) is provided at the bottom of the pressure block (212) for passing through the cross bar (209). The top of the pressure block (212) is connected to the moving end of a first vertical lifting mechanism. The first vertical lifting mechanism is installed on a moving frame (214). The moving frame (214) is slidably fitted in the rotating frame (201) and is arranged to move along its length direction. A second vertical lifting mechanism is provided on the moving frame (214). The moving end of the second vertical lifting mechanism is connected to the support frame (202).

4. The tapped density testing device for powder according to claim 1, characterized in that, A second through hole (215) penetrating up and down is provided on the support block (204). The distance between the center of the second through hole (215) and the center of the mounting frame (203) is less than the distance between the center of the first through hole (205) and the center of the mounting frame (203). A groove (216) is provided at one end of the support block (204) away from the center of the mounting frame (203). The groove (216) communicates with the first through hole (205) and the second through hole (215). When the upper end of the material loading pipe is located in the first through hole (205), the top surface of the material loading pipe is flush with the bottom surface of the groove (216); A partition plate (217) movably arranged along its length direction is provided in the groove (216). A communication hole (218) penetrating up and down is provided on the partition plate (217). During application, the communication hole (218) is aligned with the first through hole (205) or the second through hole (215).

5. The powder tapped density testing device according to claim 4, wherein The partition plates (217) on the same side are all installed on a connecting rod (219). Guide rods (220) are detachably installed at 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 penetrates through a bottom plate (221). The bottom plate (221) is installed at the bottom of the mounting frame (203). A limit ring (222) and a second spring (223) are provided on the guide rod (220). The two ends of the second spring (223) are respectively abutted against the limit ring (222) and the bottom plate (221) and are always in a compressed state. A first retaining ring (224) is provided at the end of the guide rod (220) for abutting against the bottom plate (221); Two limit holes (225) are provided along the length direction on the partition plate (217). A limit rod (226) is arranged in one of the limit holes (225). The limit rod (226) is installed at the bottom of a pressing plate (227). The pressing plate (227) is sleeved on a 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). The two ends of the third spring (230) are respectively abutted against the second retaining ring (229) and the pressing plate (227) and are always in a compressed state.

6. The powder tapped density testing device according to claim 1, wherein Both ends of the support frame (202) are provided with bidirectional linear mechanisms. The moving end of the bidirectional linear mechanism is connected to a moving plate (231). Two positioning blocks (232) are provided on the side of the moving plate (231). One of the positioning blocks (232) passes through the mounting frame (203), and the other positioning block (232) is located on the top surface of the mounting frame (203).

7. The powder tapped density testing device according to claim 1, wherein Both ends of the vibration frame (301) are provided with two symmetrically arranged clamping blocks (302). The upward side of the clamping block (302) is arc-shaped, and a push rod (303) is provided at the opposite end. The push rod (303) passes through the vertical plate (304). The vertical plate (304) is mounted on the vibration frame (301). One end of the push rod (303) passes through the L-shaped plate (305). The L-shaped plate (305) is mounted 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. Both ends of the fourth spring (307) are respectively abutted against the L-shaped plate (305) and the retaining ring (306), and is always in a compressed state; Both ends of the vibration frame (301) are provided with support rods (308). A support ring (309) is provided on the support rod (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). During application, the mounting frame (203) is sleeved on the support rod (308) and is located between the support ring (309) and the clamping block (302).

8. The powder tapped density testing device according to claim 5, characterized in that, Above the carrier frame (401), a top frame (403) is movably arranged in the vertical direction. A plurality of first ejector rods (404) are provided on the top surface of the top frame (403). During application, the top surface of the first ejector rod (404) contacts the bottom surface of the pressing plate (227); On both sides of the top frame (403), there are push plates (410) mounted on the workbench (100). The push plate (410) includes two vertical segments, and the two vertical segments are connected by a transition segment. The distance between the upper vertical segment and the center of the top frame (403) is greater than the distance between the lower vertical segment and the center of the top frame (403). During application, the push plate (410) contacts the outside of the connecting rod (219).

9. The powder tapped density testing device according to claim 4, characterized in that, 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). During application, 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 at the upper end for abutting against the mounting plate (406). A fifth spring (409) is sleeved on the first side rod (405), and both ends of the fifth spring (409) respectively abut against the mounting plate (406) and the workbench (100).

10. The powder tap density testing device according to claim 5, characterized in that, 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 mounted on the workbench (100), and a fourth retaining ring (105) is provided at the upper end for abutting against the top surface of the first lifting frame (101). A sixth spring (106) is sleeved on the second side rod (104), and both ends of the sixth spring (106) respectively abut against the workbench (100) and the first lifting frame (101), and is always in a compressed state; Second ejector rods (107) mounted on the workbench (100) are further provided around the first lifting frame (101) for abutting against the bottom surface of the pressing plate (227).

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