Powder filling mechanism

Abstract

The present invention aims to provide a powder filling mechanism, which includes a machine platform and a filling component, the filling component including a material tray, a bottom ring, a push rod and a filling rod, the material tray is rotatably arranged on the machine platform, a filling hole is opened in the material tray, the bottom ring is height-adjustably arranged on the machine platform, and the bottom ring is located at the bottom side of the material tray so that the distance between the bottom ring and the material tray is adjustable, an air avoidance groove is opened on the bottom ring, the push rod and the filling rod are both slidably arranged on the machine platform along the vertical direction, and the push rod and the filling rod are both located above the material tray, and the push rod is aligned with the air avoidance groove, and the filling rod is aligned with the bottom ring, the material tray is used to rotate so that the filling hole circulates through the filling rod and the push rod, when the filling hole is aligned with the filling rod and the filling rod descends, the filling rod presses the medicine powder into the filling hole, and when the filling hole is aligned with the push rod and the push rod descends, the push rod pushes the compacted medicine powder in the filling hole out of the air avoidance groove.

Description

Technical Field

[0001] The present invention relates to the technical field of powder filling, in particular to a powder filling mechanism. Background Art

[0002] Powder filling is a common process in the capsule filling industry. The amount of powder filled into a single capsule must meet a predetermined value before the subsequent capsule closing process can proceed.

[0003] With the development of technology, various types of semi-automatic and fully-automatic capsule powder filling equipment have emerged. For example, Chinese patent document No. CN209967076U discloses a capsule filling device, which includes a capsule conveyor plate, a conveyor wheel, a wheel frame, an upper support frame, a hydraulic support column, a first empty capsule feeder, a powder filler, a second empty capsule feeder and a powder scraper; the capsule conveyor plate is provided with transversely arranged capsule slots, the bottom of the capsule conveyor plate is connected to the conveyor wheel, and the conveyor wheel is fixed to the wheel frame; the upper support frame is provided with a first empty capsule feeder, a powder filler, and a second empty capsule feeder from left to right, and a powder scraper is also provided between the powder filler and the second empty capsule feeder; the upper support frame is fixed to the ground by two hydraulic support columns; the powder filler includes a powder hopper, a drug delivery pipe, a pressure chamber, and a drug delivery gun barrel; the bottom of the powder hopper is connected to the pressure chamber via two drug delivery pipes, the pressure chamber is arranged between the two drug delivery pipes, and the drug delivery gun barrel is arranged at the bottom of the pressure chamber; the upper part of the pressure chamber is connected to the air source via a conduit. In this way, the powder in the pressure chamber is filled into the capsule through the medicine delivery gun barrel by using the air source.

[0004] However, the filling method disclosed in the prior art has the following problems: the drug powder is in powder form, and the air-delivered method can disperse the powder, causing it to spray out from the end of the delivery barrel, making it impossible to stably fill the capsule with the powder. Therefore, to solve the problem of quantitatively filling the drug powder into the capsule, the powder filling mechanism of the present application is proposed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a powder filling mechanism that can quantitatively and stably fill medicinal powder.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] A powder filling mechanism, comprising:

[0008] machines; and

[0009] The filling assembly comprises a material tray, a bottom ring, a pushing rod and a filling rod, the material tray is rotatably arranged on the machine platform, a filling hole is opened in the material tray, the bottom ring is height-adjustable on the machine platform, and the bottom ring is located at the bottom side of the material tray so that the distance between the bottom ring and the material tray is adjustable, and an air avoidance groove is opened on the bottom ring, the pushing rod and the filling rod are both slidably arranged on the machine platform along the vertical direction, and the pushing rod and the filling rod are both located above the material tray, and the pushing rod is aligned with the air avoidance groove, and the filling rod is aligned with the bottom ring, and the material tray is used to rotate so that the filling hole circulates through the filling rod and the pushing rod, when the filling hole is aligned with the filling rod and the filling rod descends, the filling rod presses the medicine powder into the filling hole, and when the filling hole is aligned with the pushing rod and the pushing rod descends, the pushing rod pushes the compacted medicine powder in the filling hole out of the air avoidance groove.

[0010] Optionally, the filling assembly further includes a rotary driving member, the rotary driving member is disposed on the machine platform, the output shaft of the rotary driving member passes through the bottom ring, and the material tray is disposed on the output shaft of the rotary driving member.

[0011] Optionally, the filling assembly further includes a receiving seat, which is disposed on the machine platform, the output shaft of the rotary drive member passes through the receiving seat, and the bottom ring and the material tray are both located in the receiving seat.

[0012] Optionally, the filling assembly further comprises a plurality of adjusting parts, each of which is passed through the receiving seat, and each of which is respectively connected to the machine and the bottom ring, the adjusting parts comprising a sliding column and a supporting screw, a socket is provided on the bottom surface of the bottom ring, the sliding column passes through the receiving seat in a vertical direction, and the top end of the sliding column is inserted into the socket, the supporting screw is screwed to the bottom end of the sliding column, and the end of the supporting screw away from the sliding column abuts against the machine.

[0013] Optionally, the filling assembly further includes a transverse plate and a stop block, the transverse plate being arranged on the machine table, and the transverse plate being located above the material tray so that the pushing rod and the filling rod are both passed through the transverse plate, the stop block being height-adjustable on the transverse plate, and the stop block being located inside the material tray so that the distance between the outer bottom wall of the stop block and the inner bottom wall of the material tray is adjustable, and the stop block is aligned with the air avoidance groove, a through hole is provided on the stop block, and the pushing rod passes through the through hole.

[0014] Optionally, a step groove is provided on the outer bottom wall of the blocking block, the through hole is located in the step groove, and the opening direction of the step groove is the same as the rotation direction of the material tray.

[0015] Optionally, a slanted top surface is provided on the side of the stop block away from the opening direction of the step groove, and the material tray is used to drive the powder to approach the stop block so that the slanted top surface pushes the powder toward the center of the material tray.

[0016] Optionally, the filling assembly further comprises a lifting frame, the lifting frame is slidably arranged on the machine platform along a vertical direction, the pushing rod is arranged on the lifting frame, and the filling rod is adjustably arranged on the lifting frame.

[0017] Optionally, the filling assembly further includes a push block, a locking screw, a limiting cylinder and two first guide rods, the two first guide rods are both arranged on the lifting frame, and the two first guide rods are both passed through the push block, the locking screw is passed through the push block and the limiting cylinder in turn to be screwed to the lifting frame, and the push rod is arranged on the push block.

[0018] Optionally, the filling assembly further includes a filling screw, a filling block, a filling spring and two second guide rods, the two second guide rods are both arranged on the lifting frame, and the two second guide rods are both passed through the filling block, the filling screw is rotatably arranged on the lifting frame, and the filling screw is threadedly connected to the filling block, the filling rod is slidably arranged on the filling block, the filling spring is respectively in contact with the filling rod and the filling block, and the filling spring is used to push the filling rod so that the filling rod has a tendency to approach the material tray.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] When the tray rotates, so that the filling hole is aligned with the filling rod, the lower end of the filling hole is blocked by the bottom ring, which is equivalent to a closed end. As the filling rod descends, the filling rod will compact the powder contained in the tray into the filling hole, and then the filling rod rises and resets. When the tray rotates, so that the filling hole is aligned with the push rod, the filling hole is aligned with the air-avoidance groove, which is equivalent to the lower end of the filling hole being opened. As the push rod descends, the push rod will push the compacted powder in the filling hole out of the air-avoidance groove below. In this way, the filling rod and the push rod cooperate with the filling hole to quantitatively compact the powder in the filling hole. By simply moving the empty capsule to the air-avoidance groove and docking it with the filling hole, a certain amount of powder can be delivered into the capsule, achieving quantitative and stable filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a schematic cross-sectional view of a powder filling mechanism according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 The schematic structural diagram of the powder filling mechanism shown;

[0024] Figure 3 for Figure 1 A schematic cross-sectional view of the powder filling mechanism from another angle is shown;

[0025] Figure 4 for Figure 2 A partial structural diagram of the powder filling mechanism shown;

[0026] Figure 5 for Figure 2 Another partial structural schematic diagram of the powder filling mechanism shown;

[0027] Figure 6 Schematic diagram of the structure of the material tray and the bottom ring according to one embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the structure of a material tray according to one embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the structure of an adjusting member according to one embodiment of the present invention;

[0030] Figure 9 Schematic diagram of the structure of the horizontal plate and the material blocking block according to one embodiment of the present invention;

[0031] Figure 10 for Figure 2 A schematic diagram of a portion of the structure of the powder filling mechanism from another angle is shown;

[0032] Figure 11 Schematic diagram of the structure of a packing spring according to one embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 10. Powder filling mechanism; 100. Machine; 200. Filling assembly; 210. Material tray; 220. Bottom ring; 230. Filling rod; 240. Push rod; 211. Filling hole; 221. Air avoidance groove; 250. Rotary drive member; 260. Storage seat; 261. Inclined inner wall; 262. Discharge hole; 271. Scraper plate; 272. Stop block; 273. Scraper; 275. Scraper block; 222. Chamfered portion; 280. Adjusting member; 281. Sliding column; 282. Support screw; 223. Jack; 2811. Guide groove; 283. Limiting stud; 284. Lock nut; 274. Sealing ring ; 291, horizontal plate; 292, material stop block; 2921, through hole; 2922, step groove; 2923, inclined top surface; 293, vertical pole; 294, adjusting nut; 295, scraper; 296, powder stop plate; 2100, lifting frame; 2210, push block; 2220, locking screw; 2230, limiting cylinder; 2240, first guide rod; 2310, packing screw; 2320, packing block; 2330, packing spring; 2340, second guide rod; 2110, lifting seat; 2120, connecting plate; 2130, lifting column; 110, pillar; 2111, window; 2140, ruler. DETAILED DESCRIPTION

[0035] In order to facilitate understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

[0036] like Figures 1 to 7 As shown, a powder filling mechanism 10 includes a machine 100 and a filling assembly 200, the filling assembly 200 includes a material tray 210, a bottom ring 220, a filling rod 230 and a push rod 240, the material tray 210 is rotatably set on the machine 100, a filling hole 211 is opened in the material tray 210, the bottom ring 220 is height-adjustable on the machine 100, and the bottom ring 220 is located on the bottom side of the material tray 210 so that the distance between the bottom ring 220 and the material tray 210 is adjustable, and an air avoidance groove 221 is opened on the bottom ring 220, and the filling rod 230 and the push rod 240 are both slidably set on the machine 100 along the vertical direction. , and the filling rod 230 and the pushing rod 240 are both located above the material tray 210, and the pushing rod 240 is aligned with the air avoidance groove 221, and the filling rod 230 is aligned with the bottom ring 220, and the material tray 210 is used to rotate so that the filling hole 211 circulates through the filling rod 230 and the pushing rod 240. When the filling hole 211 is aligned with the filling rod 230 and the filling rod 230 descends, the filling rod 230 presses the powder into the filling hole 211. When the filling hole 211 is aligned with the pushing rod 240 and the pushing rod 240 descends, the pushing rod 240 pushes the compacted powder in the filling hole 211 out of the air avoidance groove 221.

[0037] It should be noted that the material tray 210 can be driven by a driving source such as a motor to rotate on the machine 100. A filling hole 211 with a penetrating structure is provided on the inner bottom wall of the material tray 210. The material tray 210 is used to contain medicinal powder. In one embodiment, the material tray 210 includes a material plate and a ring surrounding the material plate, wherein the ring can be welded to the material plate or fixed to the material plate by bolts. The filling hole 211 is on the material plate. Furthermore, the bottom ring 220 is a circular ring structure, and the bottom ring 220 is mounted on the machine 100 in an adjustable height, and the bottom ring 220 is located below the material tray 210. In this way, by adjusting the height of the bottom ring 220 relative to the machine 100, the distance between the bottom ring 220 and the bottom surface of the material tray 210 can be adjusted. A clearance groove 221 is provided on the bottom ring 220. Thus, when the material tray 210 rotates, the filling hole 211 of the material tray 210 will cyclically pass through the clearance groove 221. When the filling hole 211 does not pass through the clearance groove 221, the filling hole 211 is aligned with the bottom ring 220. By adjusting the distance between the bottom ring 220 and the bottom surface of the material tray 210, it is equivalent to using the bottom ring 220 to seal the lower end of the filling hole 211. When the filling hole 211 passes through the clearance groove 221, it is equivalent to using the bottom ring 220 to open the lower end of the filling hole 211. Furthermore, the filling rod 230 and the push rod 240 are both slidably mounted on the machine 100 along the vertical direction. The filling rod 230 and the push rod 240 can both be lifted and slid relative to the machine 100. For example, the filling rod 230 and the push rod 240 can be driven to lift and move by a screw module driven by a motor. Furthermore, the filling rod 230 and the push rod 240 can lift and move synchronously or asynchronously. The push rod 240 is located above the clearance groove 221, and the filling rod 230 is located above the bottom ring 220. When the tray 210 rotates relative to the machine 100, the filling holes 211 of the tray 210 cyclically pass through the filling rod 230 and the push rod 240. When the filling rod 230 and the push rod 240 move up and down asynchronously, the number of filling holes 211 can be at least one. When the filling rod 230 and the push rod 240 move up and down synchronously, the number of filling holes 211 equals the sum of the number of filling rods 230 and the push rod 240. Thus, when the tray 210 rotates, the filling holes 211 align with the filling rod 230. At this time, the lower end of the filling hole 211 is blocked by the bottom ring 220, which is equivalent to a closed end. As the filling rod 230 descends, it compacts the powder contained in the tray 210 into the filling hole 211, and then the filling rod 230 rises and returns to its original position. When the material tray 210 rotates so that the filling hole 211 is aligned with the pushing rod 240, the filling hole 211 is aligned with the air avoidance groove 221, which is equivalent to the lower end of the filling hole 211 being opened. As the pushing rod 240 descends, the pushing rod 240 will push the compacted medicine powder in the filling hole 211 out of the air avoidance groove 221 below.In this way, by utilizing the filling rod 230 and the pushing rod 240 in cooperation with the filling hole 211, the powder can be quantitatively compacted in the filling hole 211. By simply moving the empty capsule to the air avoidance groove 221 and docking it with the filling hole 211, a quantitative amount of powder can be delivered into the capsule, achieving quantitative and stable filling.

[0038] like Figures 1 to 4 As shown, in one embodiment, the filling assembly 200 further includes a rotary drive member 250, which is disposed on the machine platform 100. The output shaft of the rotary drive member 250 passes through the bottom ring 220, and the material tray 210 is disposed on the output shaft of the rotary drive member 250. It should be noted that the rotary drive member 250 can be a cam divider. In this way, the cam divider can drive the material tray 210 to rotate cyclically at a certain angle and frequency, so that the filling holes 211 on the material tray 210 can circulate through the filling rod 230 and the push rod 240.

[0039] like Figures 1 to 4 As described above, in one embodiment, the filling assembly 200 further includes a receiving seat 260 , which is disposed on the machine 100 , and the output shaft of the rotating drive member 250 passes through the receiving seat 260 , and the bottom ring 220 and the material tray 210 are both located in the receiving seat 260 .

[0040] It should be noted that because the material tray 210 needs to rotate relative to the bottom ring 220, a certain gap must exist between the bottom surface of the material tray 210 and the bottom ring 220. When the filling rod 230 compacts the powder in the filling hole 211, some powder will inevitably flow out of the filling hole 211 and fall into the gap between the bottom surface of the material tray 210 and the bottom ring 220, that is, fall onto the bottom ring 220. To avoid the waste of this powder, a storage seat 260 is installed on the machine 100. The output shaft of the rotary drive member 250 passes through the storage seat 260, so that the bottom ring 220 and the material tray 210 are both located in the storage seat 260. In this way, the powder remaining on the bottom ring 220 can fall into the storage seat 260 and be stored.

[0041] like Figure 3 In one embodiment, the storage seat 260 is provided with an inner wall 261 that slopes from the periphery toward the center. This makes the interior of the storage seat 260 resemble a funnel, and the outflowing medicine powder flows into the middle position of the storage seat 260 near the rotating drive member 250 for easy storage.

[0042] like Figure 3 As shown, in one embodiment, a discharge hole 262 is further provided in the storage seat 260. It should be noted that in order to facilitate the discharge of the medicine powder stored in the storage seat 260, the discharge hole 262 is provided on one side of the storage seat 260, so that the medicine powder can be discharged from the discharge hole 262.

[0043] like Figure 1 As shown, in one embodiment, the filling assembly 200 further includes a scraper plate 271 , which is disposed on the output shaft of the rotary drive member 250 , and the scraper plate 271 is located in the storage seat 260 , and the rotary drive member 250 is used to drive the scraper plate 271 to circulate through the discharge hole 262 .

[0044] It should be noted that the scraper plate 271 is mounted on the outer wall of the rotary drive member 250 and is located adjacent to the inner bottom wall of the receiving seat 260. Thus, as the rotary drive member 250 drives the material tray 210 to rotate, it also drives the scraper plate 271 to rotate within the receiving seat 260, thereby discharging the powder stored within the receiving seat 260 through the discharge hole 262. In this manner, the powder stored within the receiving seat 260 can be stored by simply placing a container outside the receiving seat 260 so that the container is aligned with the discharge hole 262.

[0045] like Figure 3 As shown, in one embodiment, the top surface of the storage seat 260 is higher than the bottom surface of the material tray 210. Thus, when the powder is discharged from the lower end of the filling hole 211, that is, when the powder is discharged from the gap between the material tray 210 and the bottom ring 220, because the top surface of the storage seat 260 is higher than the bottom surface of the material tray 210, the powder can only fall into the storage seat 260 and will not fly out of the storage seat 260, further preventing the powder from splashing.

[0046] like Figure 3 and Figure 4 As shown, in one embodiment, a plurality of avoidance grooves are provided on the top surface of the storage seat 260, each avoidance groove is aligned with the bottom surface of the material tray 210, and the filling assembly 200 also includes a plurality of blocks 272, each block 272 being detachably inserted into each avoidance groove.

[0047] It should be noted that while the rotary drive 250 rotates the tray 210, the height of the tray 210 remains unchanged. The storage base 260 is also mounted on the machine 100, and its height remains unchanged. Furthermore, the top surface of the storage base 260 is higher than the bottom surface of the tray 210. The height of the bottom ring 220 is adjustable, meaning the distance between the bottom ring 220 and the bottom surface of the tray 210 is adjustable. To facilitate user measurement of the distance between the bottom ring 220 and the bottom surface of the tray 210, a plurality of clearance grooves are provided on the top surface of the storage base 260. A stopper 272 is removably mounted in each clearance groove. For example, the stopper 272 is bolted to the storage base 260. This allows the stopper 272 to be removed from the storage base 260, aligning the clearance groove with the bottom surface of the tray 210. This allows the distance between the bottom ring 220 and the bottom surface of the tray 210 to be conveniently measured and adjusted using a thickness gauge. After the distance measurement and adjustment are completed, the stopper 272 can be reinstalled and fixed on the receiving seat 260 .

[0048] like Figure 6 As shown, in one embodiment, a scraper 273 is provided on the bottom ring 220 , and the scraper 273 is arranged toward the bottom surface of the material tray 210 , and the scraper 273 is used to scrape off the medicine powder adhered to the bottom surface of the material tray 210 .

[0049] It should be noted that because the gap between bottom ring 220 and the bottom surface of tray 210 is relatively small, ranging from 0.1 mm to 2 mm, powder inevitably enters the gap between bottom ring 220 and the bottom surface of tray 210, resulting in powder adhering to the bottom surface of tray 210. A scraper 273 installed on bottom ring 220 can scrape powder off the bottom surface of tray 210. Scraper 273 is attached to bottom ring 220 via screws, so its height relative to bottom ring 220 is adjustable.

[0050] like Figure 6 As shown, in one embodiment, a scraper 275 is further provided on the bottom ring 220 near the air-avoiding groove 221 , so that the scraper 275 can be used to scrape the powder adhering to the bottom surface of the material tray 210 from the air-avoiding groove 221 .

[0051] Furthermore, if Figure 3 As shown, in one embodiment, chamfered portions 222 are provided on both the inner and outer walls of the bottom ring 220. The chamfered portions 222 are inclined, which prevents powder from being retained on the bottom ring 220. In particular, when the scraper 273 scrapes powder from the bottom surface of the tray 210, the powder falls from the bottom ring 220 into the receiving seat 260.

[0052] like Figures 1 to 4 As shown, in one embodiment, the filling assembly 200 further includes a plurality of adjusting members 280, each of which is provided with a receiving seat 260, and each of which is respectively connected to the machine 100 and the bottom ring 220, and the adjusting member 280 includes a slide 281 and a supporting screw 282, and a socket 223 is provided on the bottom surface of the bottom ring 220, the slide 281 is provided with the receiving seat 260 in the vertical direction, and the top end of the slide 281 is inserted into the socket 223, the supporting screw 282 is screwed to the bottom end of the slide 281, and the end of the supporting screw 282 away from the slide 281 abuts against the machine 100.

[0053] It should be noted that the adjustment member 280 is used to adjust the height of the bottom ring 220. Specifically, a slide 281 passes through the receiving seat 260. It should be noted that the slide 281 can only move vertically relative to the receiving seat 260 and cannot rotate relative to the receiving seat 260. A socket 223 is provided on the bottom surface of the bottom ring 220, into which the top portion of the slide 281 is inserted. In this way, the slides 281 collectively support the bottom ring 220. Furthermore, a supporting screw 282 is coaxially threaded with the bottom end of the slide 281 and abuts the machine platform 100. Rotating the supporting screw 282 allows the slide 281 to move upward and downward relative to the machine platform 100, or in other words, relative to the receiving seat 260. This allows the height of the bottom ring 220 to be adjusted, and in other words, the distance between the bottom ring 220 and the bottom surface of the tray 210 to be adjusted.

[0054] like Figure 3 and Figure 8 As shown, in one embodiment, the slide column 281 is a cylindrical structure, and a guide groove 2811 is opened along the axial direction on the outer wall of the slide column 281. The adjustment member 280 also includes a limiting screw 283, which is screwed to the outer wall of the storage seat 260, and one end of the limiting screw 283 is adaptively accommodated in the guide groove 2811.

[0055] It should be noted that, because it is necessary to ensure that the slide post 281 can move vertically relative to the receiving seat 260, in one embodiment, the slide post 281 can be configured as a multi-faceted column structure. A corresponding multi-sided hole is provided on the receiving seat 260, so that the slide post 281 fits through the multi-sided hole, thereby enabling the slide post 281 to move upward and downward relative to the receiving seat 260. Furthermore, in one embodiment, the slide post 281 can be configured as a cylindrical structure. In this case, a corresponding round hole is provided on the receiving seat 260. Compared to a multi-sided hole, a round hole is easier to process. In order to limit the sliding column 281 to slide only in the vertical direction and not rotate relative to the storage seat 260, a guide groove 2811 is opened along the axial direction on the outer wall of the sliding column 281, and then the limiting screw 283 is screwed to the outer wall of the storage seat 260, and one end of the limiting screw 283 is extended into the guide groove 2811 to limit the sliding column 281, so that the sliding column 281 can only be lifted and slid relative to the storage seat 260 in the vertical direction.

[0056] like Figure 8 As shown, in one embodiment, the adjustment member 280 further includes a locking nut 284 , which is threaded onto the supporting screw 282 . The locking nut 284 is used to abut against the sliding column 281 to fix the supporting screw 282 and the sliding column 281 .

[0057] It should be noted that after the height of the bottom ring 220 is adjusted, the slide post 281 is tightened by the locking nut 284 to ensure that the slide post 281 and the supporting screw 282 are locked and fixed as a whole.

[0058] like Figure 3 As shown, in one embodiment, a sealing ring 274 is provided in the receiving seat 260 , and the output shaft of the rotary driving member 250 passes through the sealing ring 274 .

[0059] It should be noted that in order to eliminate the gap between the storage seat 260 and the rotating drive member 250, a sealing ring 274 is installed on the storage seat 260 to prevent the powder in the storage seat 260 from flowing out from the gap between the output shaft of the rotating drive member 250 and the storage seat 260.

[0060] like Figures 1 to 3 、 Figure 5 and Figure 9 As shown, in one embodiment, the filling component 200 also includes a transverse plate 291 and a stop block 292. The transverse plate 291 is arranged on the machine 100, and the transverse plate 291 is located above the material tray 210, so that the push rod 240 and the filling rod 230 are both passed through the transverse plate 291. The stop block 292 is height-adjustable on the transverse plate 291, and the stop block 292 is located in the material tray 210, so that the distance between the outer bottom wall of the stop block 292 and the inner bottom wall of the material tray 210 is adjustable, and the stop block 292 is aligned with the air avoidance groove 221, and a through hole 2921 is opened on the stop block 292, and the push rod 240 passes through the through hole 2921.

[0061] It should be noted that the transverse plate 291 is installed horizontally on the machine 100, and the transverse plate 291 is located above the material tray 210, which is equivalent to the transverse plate 291 covering the top of the material tray 210. In order not to affect the loading of the powder into the material tray 210, a through hole for loading is provided on the transverse plate 291. Furthermore, the height of the stop block 292 is adjustable on the bottom surface of the transverse plate 291, so that the stop block 292 is located in the material tray 210, so that the distance between the outer bottom surface of the stop block 292 and the inner bottom wall of the material tray 210 is adjustable. Furthermore, a through hole 2921 is provided on the stop block 292, so that the push rod 240 passes through the through hole 2921. Because the push rod 240 is used to push the powder in the filling hole 211 out of the air avoidance groove 221. When push rod 240 rises, the powder in tray 210 enters filling hole 211. At this point, the powder in filling hole 211 is naturally loose, so the powder will flow out of filling hole 211. To prevent this problem, a blocking block 292 is installed on cross plate 291, so that blocking block 292 blocks the filling hole 211 below. When push rod 240 removes the powder from filling hole 211 and rises to return to its original position, the blocking block 292 blocks the powder in tray 210, preventing it from falling out of the filling hole 211 at the corresponding position of the air-avoidance slot 221.

[0062] like Figure 9 As shown, in one embodiment, a step groove 2922 is opened on the outer bottom wall of the blocking block 292 , the through hole 2921 is located in the step groove 2922 , and the direction of the opening E of the step groove 2922 is the same as the rotation direction of the material tray 210 .

[0063] It should be noted that when the push rod 240 enters the filling hole 211 to push out the compacted powder, some of the powder will inevitably overflow from the upper end of the filling hole 211, and the distance between the blocking block 292 and the inner bottom wall of the material tray 210 is very small. In order to prevent the overflowing powder from being squeezed between the blocking block 292 and the inner bottom wall of the material tray 210, a step groove 2922 is provided on one end surface of the blocking block 292 close to the inner bottom wall of the material tray 210. The gap is very small, equivalent to the step groove 2922 being sealed by the inner bottom wall of the material tray 210. The height of the overflowing powder must be greater than the gap between the material stop block 292 and the inner bottom wall of the material tray 210. When the material tray 210 continues to rotate, in order to prevent the overflowing powder from blocking the material stop block 292 and entering the gap between the material stop block 292 and the inner bottom wall of the material tray 210, the step groove 2922 is configured as a single-end non-closed structure. Specifically, the opening of the step groove 2922 is aligned with the rotation direction of the material tray 210. In this way, when the medicine powder overflows the inner bottom wall of the material tray 210, as the material tray 210 continues to rotate, the overflowing medicine powder will flow along the opening of the step groove 2922 and re-mix with the other medicine powder in the material tray 210 that was blocked by the material stop block 292.

[0064] like Figure 9 As shown, in one embodiment, a slanted top surface 2923 is provided on the side of the blocking block 292 away from the opening direction of the step groove 2922, and the material tray 210 is used to drive the powder to approach the blocking block 292 so that the slanted top surface 2923 pushes the powder toward the center of the material tray 210.

[0065] It should be noted that the filling hole 211 is located at the edge of the inner bottom wall of the material tray 210, and therefore the material stop block 292 is also located at the edge of the inner bottom wall of the material tray 210. When the material tray 210 rotates to drive the medicine powder toward the material stop block 292, in order to prevent the medicine powder from entering the position between the material stop block 292 and the inner side wall of the material tray 210, an inclined top surface 2923 is provided on the side of the material stop block 292 away from the opening of the step groove 2922. The inclined top surface 2923 is inclined toward the rotation center of the material tray 210. In this way, when the medicine powder contacts the material stop block 292, it is pushed by the inclined top surface 2923 toward the rotation axis of the material tray 210.

[0066] like Figure 9 As shown, in one embodiment, two vertical rods 293 are further provided on the blocking block 292, and both vertical rods 293 pass through the horizontal plate 291. Each vertical rod 293 is located on the top surface and side surface of the horizontal plate 291 and is screwed with an adjusting nut 294, and the adjusting nut 294 is in contact with the horizontal plate 291.

[0067] Thus, by rotating the adjusting nut 294 relative to the vertical rod 293, the adjusting nut 294 will slide along the axial direction of the vertical rod 293, thereby adjusting the height of the stop block 292. The two adjusting nuts 294 on the same vertical rod 293 are used to clamp the cross plate 291 together, so that the stop block 292 is securely fixed.

[0068] like Figure 3 and Figure 9 As shown, in one embodiment, a scraper 295 is provided on the bottom surface of the horizontal plate 291, and the scraper 295 is used to scrape the medicine powder.

[0069] It should be noted that, for example, the scraper 295 is a hanging mesh structure. When the material tray 210 drives the medicine powder to rotate, the scraper 295 can stir the medicine powder to keep the medicine powder loose and avoid agglomeration.

[0070] like Figure 3 and Figure 9 As shown, in one embodiment, a powder blocking plate 296 is further provided on the bottom surface of the horizontal plate 291 .

[0071] It should be noted that a powder quantity detector is also installed on the horizontal plate 291. In order to prevent the accumulation of powder when the powder is filled into the material tray 210 and affect the powder quantity detector, a powder blocking plate 296 is installed on the horizontal plate 291 to block the powder.

[0072] like Figure 1 As shown, in one embodiment, the filling assembly 200 further includes a lifting frame 2100 , which is slidably arranged on the machine platform 100 along a vertical direction, the pusher rod 240 is arranged on the lifting frame 2100 , and the filling rod 230 is adjustably arranged on the lifting frame 2100 .

[0073] It should be noted that the filling rod 230 and the pushing rod 240 are both located on the lifting frame 2100 , and the lifting frame 2100 drives the filling rod 230 and the pushing rod 240 to move up and down synchronously.

[0074] like Figure 1 、 Figure 3 and Figure 10 As shown, in one embodiment, the filling assembly 200 also includes a pushing block 2210, a locking screw 2220, a limiting cylinder 2230 and two first guide rods 2240. The two first guide rods 2240 are both arranged on the lifting frame 2100, and the two first guide rods 2240 are both passed through the pushing block 2210. The locking screw 2220 is sequentially passed through the pushing block 2210 and the limiting cylinder 2230 to be screwed to the lifting frame 2100, and the pushing rod 240 is arranged on the pushing block 2210.

[0075] It should be noted that the two first guide rods 2240 are fixedly mounted on the lifting frame 2100 in the vertical direction. Both first guide rods 2240 pass through the pusher block 2210, allowing the pusher block 2210 to slide along the first guide rods 2240. One end of the pusher rod 240 is fixedly mounted on the pusher block 2210, while the other end passes through the lifting frame 2100 and then through the cross plate 291. The locking screw 2220 passes through the pusher block 2210 and the limiting cylinder 2230 in sequence, and is then screwed and fixed to the lifting frame 2100. In this way, the limiting cylinder 2230 limits the pusher block 2210, allowing the lifting frame 2100 to stably drive the pusher rod 240 to push the compacted powder in the filling hole 211 out of the air avoidance groove 221.

[0076] like Figure 10 and Figure 11As shown, in one embodiment, the filling assembly 200 also includes a filling screw 2310, a filling block 2320, a filling spring 2330 and two second guide rods 2340. The two second guide rods 2340 are both arranged on the lifting frame 2100, and the two second guide rods 2340 are both penetrated by the filling block 2320. The filling screw 2310 is rotatably set on the lifting frame 2100, and the filling screw 2310 is screwed to the filling block 2320. The filling rod 230 is slidably set on the filling block 2320. The filling spring 2330 is respectively in contact with the filling rod 230 and the filling block 2320. The filling spring 2330 is used to push the filling rod 230 so that the filling rod 230 has a tendency to approach the material tray 210.

[0077] It should be noted that the two second guide rods 2340 are fixedly mounted vertically on the lifting frame 2100. Both second guide rods 2340 pass through the filler block 2320, allowing the filler block 2320 to slide along the second guide rods 2340. The filler screw 2310 is rotatably connected to the lifting frame 2100 and is threadedly engaged with the filler block 2320. Rotating the filler screw 2310 adjusts the sliding distance of the filler block 2320 on the second guide rods 2340. Furthermore, one end of the filler rod 230 is slidably mounted within the filler block 2320, with a filler spring 2330 abutting against the filler block 2320 and the filler rod 230, respectively. Under the elastic thrust of the filler spring 2330, the filler rod 230 tends to descend. As the lifting frame 2100 drives the filling block 2320 downward, the filling rod 230 descends to compact the powder in the filling hole 211. Because the filling spring 2330 is elastic, the filling rod 230 does not rigidly compress the powder in the filling hole 211. Instead, the filling spring 2330 applies a certain pressure to the powder. This allows precise control of the compacted amount of powder in the filling hole 211.

[0078] like Figure 2 、 Figure 10 and Figure 11 As shown, in one embodiment, a plurality of filling rods 230 are provided on the filling block 2320, and a plurality of filling holes 211 are opened in the material tray 210. When the lifting frame 2100 drives each filling rod 230 to descend, each filling rod 230 is respectively penetrated by a filling hole 211.

[0079] In this way, a single filling block 2320 can simultaneously drive multiple filling rods 230 to move up and down. For example, the filling rods 230 are arranged in a straight line, and multiple filling holes 211 are correspondingly provided on the material tray 210. The amount of powder for a single capsule can be compacted in each filling hole 211. Therefore, multiple capsules can be filled simultaneously, thereby improving the capsule filling efficiency.

[0080] like Figure 10As shown, in one embodiment, a plurality of filler blocks 2320 are provided, and a plurality of filler rods 230 are provided on each filler block 2320 , and each filler rod 230 abuts against a filler spring 2330 .

[0081] It should be noted that there are multiple packing blocks 2320, and each packing block 2320 is provided with two second guide rods 2340 for guiding and sliding. Correspondingly, there are also multiple packing screws 2310, and each packing screw 2310 is rotatably connected to the lifting frame 2100, and each packing screw 2310 is screwed to each packing block 2320 respectively. Each packing block 2320 is circumferentially distributed relative to the material tray 210. In this way, by adjusting the heights of each packing block 2320 with each packing screw 2310 differently, that is, starting from the pushing block 2210 as the starting position and in the rotation direction of the material tray 210 as the gradual change order, the heights of each packing block 2320 increase, so that the amount of medicine pressed into the packing holes 211 by each packing block 2320 is approximately the same. For the convenience of description, an embodiment is described with the number of packing blocks 2320 being 5 and the material tray 210 rotating clockwise. The pushing block 221 and the 5 packing blocks 2320 are circumferentially and equally angularly spaced relative to the material tray 210. Taking the position where the pushing block 221 is located as the S0 station, and then in the clockwise direction, the five packing blocks 2320 are sequentially numbered as S1, S2, S3, S4, and S5 stations. Among them, in the S1 station, the packing screw 2310 at this station is adjusted to adjust the height of the packing block 2320 at this station, so that when the lifting frame 2100 drives the packing rod 230 at this station to descend to the lowest position, the distance between the bottom end of the packing rod 230 at this station and the bottom surface of the material trayIt should be noted that the description of the present embodiment using five filling blocks 2320 and a clockwise rotation of the tray 210 is intended solely to facilitate understanding of the technical benefits of providing multiple filling blocks 2320 and having the filling rods 230 in each filling block 2320 adjusted to different heights. This should not be construed as limiting the number of filling blocks 2320 or the rotation direction of the tray 210. It is understood that the filling blocks 2320 can also be provided in any number, such as two, three, four, five, six, or so forth. Since the principle of operation does not significantly differ depending on the number, embodiments with other numbers will not be described in detail. The tray 210 can also rotate clockwise or counterclockwise. Thus, providing multiple filling blocks 2320, each with a filling rod 230, allows for multiple quantitative filling of a single capsule, effectively improving the accuracy of the powder filling amount in a single capsule.

[0082] like Figure 1 As shown, in one embodiment, the lifting frame 2100 includes a lifting seat 2110, a connecting plate 2120 and two lifting columns 2130. The two lifting columns 2130 are respectively passed through the machine 100. The two ends of the connecting plate 2120 are respectively connected to the bottom ends of the two lifting columns 2130. The two ends of the lifting seat 2110 are respectively connected to the top ends of the two lifting columns 2130. The pushing rod 240 and the filling rod 230 are both located on the lifting seat 2110.

[0083] In this way, applying a lifting force to the connecting plate 2120 can drive the lifting base 2110 to move up and down. In this way, the connecting plate 2120 can be connected to a cam, and the cam and the rotating drive member 250 can be driven by the same motor. In this way, the same power source can be used to simultaneously drive the lifting frame 2100 to move up and down and drive the material tray 210 to rotate.

[0084] Furthermore, if Figure 1 As shown, in one embodiment, the platform 100 is provided with two pillars 110. Two lifting columns 2130 pass through the two pillars 110, and the ends of the cross plate 291 are respectively disposed on top of the two pillars 110. This allows the lifting frame 2100 and the cross plate 291 to share two pillars 110. Furthermore, in one embodiment, the lifting frame 2100 and the cross plate 291 can be supported by two independent support structures.

[0085] like Figure 3 and Figure 5As shown, in one embodiment, the lifting base 2110 is further provided with a plurality of viewing windows 2111. Each viewing window 2111 is provided with a scale 2140. The scale 2140 is provided adjacent to the filler block 2320. For example, the viewing windows 2111 are transparent plates, allowing the user to observe the filler block 2320 during adjustment through the windows 2111 and compare the results with the scale 2140, thereby facilitating precise adjustment of the filler rod 230.

[0086] The embodiments described above only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in the present invention can be understood to include but not be limited to locking and fixing with screws / screws and welding. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the present invention shall be based on the attached claims.

Claims

1. A powder filling mechanism, characterized in that: include: Machine; and A filling assembly, comprising a material tray, a bottom ring, a push rod, a filling rod, a receiving seat, a filling screw, a filling block, a filling spring, two second guide rods, and a plurality of adjusting parts. The material tray is rotatably arranged on the machine platform, a filling hole is provided in the material tray, the bottom ring is height-adjustably arranged on the machine platform, and the bottom ring is located on the bottom side of the material tray so that the distance between the bottom ring and the material tray is adjustable, an air avoidance groove is provided on the bottom ring, the push rod and the filling rod are both slidably arranged on the machine platform along the vertical direction, and The push rod and the filling rod are both located above the material tray, and the push rod is aligned with the air avoidance groove, and the filling rod is aligned with the bottom ring. The material tray is used to rotate so that the filling hole circulates through the filling rod and the push rod. When the filling hole is aligned with the filling rod and the filling rod is lowered, the filling rod presses the powder into the filling hole. When the filling hole is aligned with the push rod and the push rod is lowered, the push rod pushes the compacted powder in the filling hole out of the air avoidance groove. The receiving seat is arranged on the machine platform, and the bottom ring and the material tray are both located in the receiving seat; Each of the adjusting members is passed through the receiving seat, and each of the adjusting members is respectively connected to the machine platform and the bottom ring. The adjusting member includes a slide post and a supporting screw. The bottom surface of the bottom ring is provided with an insertion hole. The slide post is passed through the receiving seat in the vertical direction, and the top end of the slide post is inserted into the insertion hole. The supporting screw is screwed to the bottom end of the slide post, and the end of the supporting screw away from the slide post abuts against the machine platform. The two second guide rods are both penetrated by the filler block, the filler screw is threadedly connected to the filler block, the filler rod is slidably set on the filler block, the filler spring is respectively in contact with the filler rod and the filler block, and the filler spring is used to push the filler rod so that the filler rod has a tendency to approach the material tray.

2. The powder filling mechanism according to claim 1, characterized in that: The filling assembly also includes a rotating drive member, which is arranged on the machine platform. The output shaft of the rotating drive member passes through the bottom ring. The material tray is arranged on the output shaft of the rotating drive member, and the output shaft of the rotating drive member passes through the receiving seat.

3. The powder filling mechanism according to claim 1, wherein: The filling assembly also includes a transverse plate and a stop block, the transverse plate is arranged on the machine table, and the transverse plate is located above the material tray, so that the push rod and the filling rod are both passed through the transverse plate, the stop block is height-adjustably arranged on the transverse plate, and the stop block is located in the material tray, so that the distance between the outer bottom wall of the stop block and the inner bottom wall of the material tray is adjustable, and the stop block is aligned with the air avoidance groove, and a through hole is opened on the stop block, and the push rod passes through the through hole.

4. The powder filling mechanism according to claim 3, characterized in that: A step groove is provided on the outer bottom wall of the blocking block, the through hole is located in the step groove, and the opening direction of the step groove is the same as the rotation direction of the material tray.

5. The powder filling mechanism according to claim 4, characterized in that: The blocking block is provided with an inclined top surface on one side away from the opening direction of the step groove, and the material tray is used to drive the powder to approach the blocking block so that the inclined top surface pushes the powder toward the center of the material tray.

6. The powder filling mechanism according to claim 1, characterized in that: The filling assembly also includes a lifting frame, which is slidably arranged on the machine platform along the vertical direction, the push rod is arranged on the lifting frame, the filling rod is adjustably arranged on the lifting frame, the two second guide rods are both arranged on the lifting frame, and the filling screw is rotatably arranged on the lifting frame.

7. The powder filling mechanism according to claim 6, characterized in that: The filling assembly also includes a pusher block, a locking screw, a limiting cylinder and two first guide rods. The two first guide rods are both arranged on the lifting frame, and the two first guide rods are both passed through the pusher block. The locking screw passes through the pusher block and the limiting cylinder in sequence to be screwed to the lifting frame. The pusher rod is arranged on the pusher block.

Images