A rotary capsule dip-molding device

Abstract

The application discloses a rotary capsule dipping forming device and relates to the technical field of capsule forming equipment, and aims to solve the technical problem of uneven glue distribution leading to thin capsule wall and thick glue bottom, comprising a base, a dispersion mechanism arranged on the top of the base, a cyclone assembly and a dipping assembly. The beneficial effect of the application is that the dispersion mechanism effectively solves the key technical problems of uneven capsule wall thickness (such as thin mouth and thick bottom) and surface flow marks caused by uneven glue flow in the process of hard capsule dipping forming through the innovative design of the deformable spray gun. The mechanism can intelligently switch between gathering and expanding modes according to process requirements: when gathering, the spherical spray gun impacts the gathered glue on the bottom of the capsule at a fixed point, which is uniformly dispersed under the action of centrifugal force, preventing local over-thickness; when expanding, the moving gun head blows air on the side surface of the capsule in all directions, simultaneously completing the scraping of excess glue and auxiliary shaping, thereby ensuring the uniformity of the overall wall thickness of the capsule.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capsule forming equipment, and more particularly to a rotary capsule dipping forming device. BACKGROUND

[0002] In the field of rotary dipping forming of hard capsules, how to ensure the uniform consistency of the capsule shell wall thickness is a long-standing core challenge; the flow and distribution of glue on the mold rod is a dynamic and complex process, and the existing technology mainly relies on the natural flow leveling of glue and the centrifugal force generated by equipment rotation; this passive and extensive control method cannot accurately control the behavior of glue, resulting in the inherent defects of "thin mouth and thick bottom" and microscopic unevenness such as surface flow marks in capsules, which seriously affects the locking sealing performance, filling accuracy and drug release performance of capsules, and further improvement of yield and product quality is bottlenecked;

[0003] The auxiliary system (such as the dry air flow system) of the existing dipping device is single in function and lacks flexibility, and cannot differentiate and accurately intervene in the forming process; in the key stage of initial adhesion of glue, there is no effective means to actively disperse the excess glue collected at the bottom of the capsule under the action of gravity; in the glue film setting stage, it is also impossible to evenly and gently comb the side wall of the capsule to remove excess glue; this "one-size-fits-all" processing mode cannot meet the differentiated needs of air flow intensity, angle and mode at different time points (such as the initial flow leveling and the pre-setting stage) after dipping, which reflects the significant shortcomings of the existing technology in process intelligence and control refinement;

[0004] In summary, the fundamental problem of the existing technology is the lack of an active control mechanism that can dynamically adjust according to the process stage and implement "targeted" processing of glue; the specific performance is that there is a lack of an execution mechanism that can change its shape and air flow channel to adapt to different tasks, and it is impossible to realize the mode switching from "focused impact dispersion" to "all-around combing and setting"; due to the lack of such active and adaptive control ability, the key technical problem of uneven capsule wall thickness has not been fundamentally solved, and therefore we propose a rotary capsule dipping forming device. SUMMARY

[0005] The present application aims to provide a rotary capsule dipping forming device to solve the technical problem of uneven glue distribution leading to thin capsule wall and thick glue bottom.

[0006] To solve the above technical problems, the application provides the following technical scheme: a rotary capsule dipping forming device, comprising a base, a dispersion mechanism arranged on the top of the base, a cyclone assembly and a dipping assembly, the dipping assembly comprising a rotatable bearing disc, a capsule mold rod being rotatably connected in each hole on the bearing disc, a hydraulic system being fixedly arranged above the base, and the hydraulic system being transmission-adapted with the bearing disc;

[0007] The dispersion mechanism comprises a processing plate arranged on the top of the base, the inner wall of the processing plate being provided with a dipping groove and a mounting hole, the mounting hole corresponding to the vertical shaft of the capsule mold rod, each mounting hole being sleeved with an inner set cylinder, each inner set cylinder being arranged with a plurality of gun heads capable of being gathered or unfolded, the inner wall of the top of each gun head being fixedly connected with a main pipeline, the side surface of each main pipeline being provided with a sealed perforation, each gun head being connected with a spherical sheet through a limiting tube on one side, a plurality of spherical sheets forming a spherical spray gun, and the limiting tube being inserted into the sealed perforation;

[0008] When gathered, the main pipeline does not flow, the limiting tube flows, the spherical sheets gather into a spherical spray gun, a hot air flow is applied to the bottom of the hard capsule, and the glue solution is dispersed in cooperation with the glue solution flow and the self-rotation centrifugal force; when unfolded, the main pipeline flows, the limiting tube does not flow, the gun head output end moves to apply a hot air flow to the surface of the capsule, and the excess glue solution is combed in cooperation with the centrifugal force to ensure the uniform thickness of the side surface, the dispersion mechanism of the application is designed with an innovative deformable spray gun, effectively solving the key technical problems of the uneven capsule wall thickness (such as thin mouth and thick bottom) and the surface flow marks caused by uneven glue solution flow in the hard capsule dipping forming; the mechanism can intelligently switch between gathering and unfolding modes according to process requirements: when gathered, the spherical spray gun impacts the glue solution on the bottom of the capsule to make it uniformly dispersed under the action of the centrifugal force, preventing local over-thickness; when unfolded, the moving gun head combs the side surface of the capsule in all directions, simultaneously completing the removal of excess glue and auxiliary shaping, thereby ensuring the uniformity of the overall wall thickness of the capsule.

[0009] Preferably, one side of the base is arranged with a frame, one side of the frame is arranged with a rack, the top of the rack is arranged with a material containing module, and the output end of the material containing module is arranged with a receiving plate.

[0010] Preferably, the dispersion mechanism further comprises a support plate, the support plate being fixedly connected to the top of the processing plate, the inner wall of the processing plate being provided with a dispersion groove, each mounting hole being sleeved with an outer set cylinder, each outer set cylinder being arranged with a round corner along the top edge, the inner set cylinder being sleeved in the outer set cylinder, and a flow channel being left between the inner set cylinder and the outer set cylinder.

[0011] Preferably, the outer cylinder bottom inner wall sealing rotation is matched with the pneumatic slider rotating disc, each of the rotating disc upper surface is provided with a plurality of waist type grooves in annular array, the outer cylinder interior is provided with a fixed disc above the rotating disc, each of the fixed disc upper surface is provided with a plurality of waist type holes in annular array, and the convex block on the gun head is inserted into the waist type hole and the waist type groove.

[0012] Preferably, each of the gun head one side is provided with a rectangular hole, the limiting pipe is sealingly and slidably arranged in the rectangular hole, each of the limiting pipe end inner wall is provided with a first spring, each of the gun head one side inner wall is fixedly connected with a top pipe, and the first spring end is fixedly connected with the top pipe end, each of the limiting pipe interior is provided with a work type sealing plate, the guide rod surface of the work type sealing plate is sealingly and slidably matched with a blocking piece, and the blocking piece is in movable contact with the top pipe end, the guide rod surface of the work type sealing plate is provided with a second spring, and the second spring is elastically matched with the blocking piece.

[0013] Preferably, the rotating flow assembly comprises a plurality of spiral strips, a plurality of the spiral strips are slidably arranged in the inner cylinder in annular array, each of the spiral strip top is fixedly connected with a bent rod, and the bent rod passes through the flow channel between the inner cylinder and the outer cylinder, the processing plate bottom is fixedly connected with a plurality of first top cylinders, and the first top cylinder is vertically and coaxially arranged with the mounting hole.

[0014] Preferably, the first top cylinder output end is fixedly connected with a top plate, and the top plate is in movable contact with the bent rod end, and the top plate contact surface is annular and stepped.

[0015] Preferably, the glue dipping assembly further comprises a belt drive rotating system, the belt drive rotating system is arranged in the frame interior, and the belt drive rotating system output shaft passes through the frame upper surface, the bearing disc is slidably matched with the belt drive rotating system output shaft surface, the bearing disc surface is provided with a plurality of mounting holes, each of the mounting hole interior is provided with a transmission cap, each of the transmission cap side surface is provided with a transmission hole, each of the transmission cap interior is rotatably provided with a transmission wheel, the transmission wheel bottom is fixedly connected with a second top cylinder, the capsule mold rod is fixedly connected with the transmission wheel bottom, and the second top cylinder is arranged in the capsule mold rod interior.

[0016] Preferably, the capsule mold rod interior is slidably provided with a top rod, and the top rod end is sealingly matched with the capsule mold rod end shape, the top rod is transmissionally matched with the second top cylinder, the top rod end surface is provided with a cutout, the cutout is provided with a plurality of flow holes in communication with the capsule mold rod interior, the transmission cap top is fixedly connected with a communication shell, and the top rod is sealingly arranged in the communication shell interior, and the communication shell is in communication with the cutout.

[0017] Preferably, the hydraulic system is fixedly connected at the top of the support plate, a plurality of servo motors are fixedly connected in an annular array at the top of the bearing disc, each servo motor is fixedly connected with a driving wheel, the driving wheel and the transmission wheel are adaptively connected through a transmission belt, and the transmission belt passes through the transmission hole.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The present application has the following advantages: the dispersing mechanism effectively solves the key technical problems of uneven capsule wall thickness (such as thin mouth and thick bottom) and surface flow marks caused by uneven flow of glue liquid in hard capsule glue dipping forming, and the mechanism can intelligently switch between gathering and spreading modes according to process requirements: when gathering, the spherical spray gun impacts the glue liquid gathered at the bottom of the capsule to make it uniformly dispersed under the action of centrifugal force, preventing local over-thickness; when spreading, the moving gun head performs all-around airflow grooming on the side surface of the capsule, simultaneously completing the removal of excess glue and auxiliary shaping, thereby ensuring the uniformity of the overall wall thickness of the capsule.

[0020] 2. The present application realizes intelligentization and refinement of capsule glue liquid treatment through its unique deformable "spherical spray gun" design; the core advantage is that it can dynamically switch between gathering and spreading modes according to process requirements; in gathering mode, it can impact the glue liquid gathered at the bottom of the capsule to make it flow and uniformly disperse under the action of centrifugal force; in spreading mode, it can perform all-around airflow grooming on the side surface of the capsule, effectively ensuring the consistency of the glue liquid thickness on the side surface of the capsule, which actively and adjustably disperses the glue liquid, solving the quality problem of uneven capsule wall thickness caused by uneven glue liquid distribution in traditional processes.

[0021] 3. The present application constructs a dynamically adjustable "spiral channel" through the spiral strip that can move up and down to change the distance, realizing precise and controllable airflow field; the greatest advantage is that it can adapt to different process stage requirements: when the distance between spiral strips is increased, a low-resistance, high-flow-rate flow channel is formed, which is beneficial to rapid drying and shaping and improves production efficiency; when the distance between spiral strips is decreased, a strong spiral flow field is formed, which cooperates with the centrifugal force of the capsule self-rotation to efficiently remove excess glue liquid and precisely air-dry the surface of the capsule, especially suitable for high-end capsule products with extremely high requirements for wall thickness uniformity, significantly reducing forming defects such as scratches and uneven thickness.

[0022] 4、The application has high integration and automation degree, and its beneficial effects mainly lie in two aspects of efficient production and online quality monitoring. Through the structures of belt transmission and servo motor, synchronous revolution and independent rotation of the capsule mold rod are realized, so that the uniformity of dipping and subsequent processing is ensured; especially, the demolding mechanism combines the air pressure ejection and air tightness detection functions, so that the capsule body can be effectively protected from damage during demolding, and whether the capsule shell has hidden defects such as micropores or poor sealing can be indirectly judged through the airflow data, so that the production and quality inspection links are integrated, and double protection is provided for improving the product qualified rate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a sectional view of the dispersing mechanism structure of the application, showing the internal structure of the built-in barrel;

[0024] Figure 2 It is a three-dimensional structure diagram of the dipping assembly of the application;

[0025] Figure 3 It is a whole structure diagram of the application;

[0026] Figure 4 It is a three-dimensional local structure diagram of the application;

[0027] Figure 5 It is a three-dimensional local explosion structure diagram of the dispersing mechanism of the application Figure 1 ;

[0028] Figure 6 It is a three-dimensional local explosion structure diagram of the dispersing mechanism of the application Figure 2 ;

[0029] Figure 7 It is a three-dimensional structure diagram of the gun head of the application;

[0030] Figure 8 It is a three-dimensional explosion structure sectional view of the gun head of the application;

[0031] Figure 9 It is a sectional view of the gun head structure of the application;

[0032] Figure 10 It is an enlarged structure diagram of A in the application Figure 9 ;

[0033] Figure 11 It is a three-dimensional structure diagram of the gun head internal structure of the application, showing the three-dimensional structure of the top pipe;

[0034] Figure 12 It is a sectional view of the gun head structure of the application;

[0035] Figure 13The three-dimensional explosion structure schematic diagram of the rotating flow assembly of the application;

[0036] Figure 14 The three-dimensional partial structure schematic diagram of the glue dipping assembly of the application, showing the three-dimensional structure of the mounting hole;

[0037] Figure 15 The three-dimensional structure schematic diagram of the glue dipping assembly of the application;

[0038] Figure 16 The three-dimensional structure cross-sectional schematic diagram of the glue dipping assembly of the application, showing the internal structure of the transmission cap;

[0039] Figure 17 The structure cross-sectional schematic diagram of the glue dipping assembly of the application;

[0040] Figure 18 The structure cross-sectional schematic diagram of the top rod of the application, showing the three-dimensional structure of the flow-through hole and the cutout.

[0041] The figure label explanation: 1, base; 2, frame; 3, machine frame; 4, dispersion mechanism; 41, processing plate; 411, glue dipping groove; 412, dispersion groove; 413, mounting hole; 42, support plate; 43, external cylinder; 431, round corner; 44, internal cylinder; 45, rotating disc; 451, waist-shaped groove; 46, fixed disc; 461, waist-shaped hole; 47, gun head; 471, main pipeline; 472, sealing perforation; 473, rectangular hole; 48, spherical piece; 481, limiting tube; 482, first spring; 49, top pipe; 410, work-type sealing plate; 4101, blocking piece; 4102, second spring; 5, rotating flow assembly; 51, spiral strip; 52, bent rod; 53, first top cylinder; 54, top plate; 6, glue dipping assembly; 61, belt transmission rotating system; 62, bearing disc; 621, mounting hole; 63, transmission cap; 631, transmission perforation; 64, transmission wheel; 65, second top cylinder; 66, capsule mold rod; 67, top rod; 671, flow-through hole; 672, cutout; 68, communication shell; 69, hydraulic system; 610, servo motor; 611, drive wheel; 7, material containing module; 71, storage plate. DETAILED DESCRIPTION

[0042] As Figure 1 and Figures 3-12 shown, the rotating capsule glue dipping forming device of the application comprises a base 1, a frame 2 arranged on one side of the base 1, a machine frame 3 arranged on one side of the frame 2, a dispersion mechanism 4 and a rotating flow assembly 5 arranged on the top of the base 1, a glue dipping assembly 6 arranged on the top of the frame 2, a material containing module 7 arranged on the top of the machine frame 3, and a storage plate 71 transmission adapted to the output end of the material containing module 7.

[0043] The material containing module 7 is composed of a lead screw, a motor, a linear guide rail and a sliding block, which is a conventional technology and will not be described in detail. It is used to rotate the containing plate 71 so that it can be rotated and contained.

[0044] The dispersion mechanism 4 comprises a processing plate 41 fixedly connected to the top of the base 1. A glue dipping groove 411 with a thermostat and a dispersion groove 412 are arranged on the inner wall of the processing plate 41. A plurality of mounting holes 413 are arranged on the bottom inner wall of the dispersion groove 412. A support plate 42 is fixedly connected to the top of the processing plate 41. An external cylinder 43 is sleeved in each mounting hole 413. A round corner 431 is arranged on the top edge of each external cylinder 43. An internal cylinder 44 is sleeved in each external cylinder 43, and a flow channel is left between the internal cylinder 44 and the external cylinder 43. A turntable 45 with a pneumatic sliding block is sealingly and rotatably arranged on the bottom inner wall of the external cylinder 43. A plurality of waist-type grooves 451 are annularly and arrayed on the upper surface of each turntable 45. A fixed disc 46 is sleeved in the external cylinder 43 above the turntable 45. A plurality of waist-type holes 461 are annularly and arrayed on the upper surface of each fixed disc 46. A plurality of gun heads 47 are annularly and slidably adapted to the upper surface of each fixed disc 46, and the protrusions on the gun heads 47 are inserted into the waist-type grooves 451 through the waist-type holes 461. A main pipeline 471 is fixedly and communicatively connected to the top inner wall of each gun head 47. A sealing perforation 472 is arranged on the side surface of each main pipeline 471. A rectangular hole 473 is arranged on one side of each gun head 47. A spherical piece 48 is arranged on one side of each gun head 47. A plurality of spherical pieces 48 form a spherical spray gun. A limiting tube 481 is fixedly connected to the side surface of each spherical piece 48. The limiting tube 481 sealingly and slidably fits into the sealing perforation 472 through the rectangular hole 473. A first spring 482 is sleeved on the end inner wall of each limiting tube 481. A top pipeline 49 is fixedly connected to the inner wall of one side of each gun head 47, and the end of the first spring 482 is fixedly connected to the end of the top pipeline 49. A work-type sealing plate 410 is sleeved in each limiting tube 481. A blocking piece 4101 sealingly and slidably fits the surface of the guide rod on the work-type sealing plate 410, and the blocking piece 4101 is in movable contact with the end of the top pipeline 49. A second spring 4102 is sleeved on the surface of the guide rod on the work-type sealing plate 410, and the second spring 4102 is elastically adapted to the blocking piece 4101.

[0045] It is worth mentioning that the thermostat is a conventional technology, and the thermostat used in the dipping tank 411 for producing capsules is usually a temperature controller which keeps the temperature of the glue solution in the dipping tank 411 constant by controlling the heating device (its working principle: after setting the target temperature, the temperature sensor detects the actual temperature of the glue solution in real time and feeds back to the controller; the controller compares the actual temperature with the target temperature to obtain the temperature difference, adjusts the power of the heating element through the algorithm, starts heating when the temperature is lower than the set value, and stops heating (or starts cooling) when the temperature is higher than the set value, and dynamically maintains the constant temperature of the glue solution); the pneumatic slider is a device for realizing linear motion by using air pressure (its working principle is that the air source inputs compressed air into the air cylinder to generate a pressure difference in the air cylinder, which drives the piston to move linearly, and the piston is connected with the slider through the piston rod, thereby driving the slider to move linearly along the slide rail).

[0046] It is worth mentioning that by arranging the fillet 431 along the top edge of the outer cylinder 43, when the airflow flows through the fillet 431, the airflow can be guided by the special shape of the fillet 431, avoiding the increase of the air pressure in the inner cylinder 44 and affecting the uniform dispersion effect of the glue solution.

[0047] It is worth mentioning that the end surface of the top pipe 49 is provided with an air outlet, and the other end is provided with an air inlet for conveying gas.

[0048] Specifically, the plurality of gun heads 47 can be gathered or expanded; when gathered, the main pipe 471 does not flow, the limiting pipe 481 flows, and the plurality of spherical pieces 48 gather to form a spherical spray gun, which applies hot airflow to the glue solution gathered on the bottom of the hard capsule, so that the glue solution can flow and be uniformly dispersed by the centrifugal force generated by the self-rotation of the hard capsule; when expanded, the main pipe 471 flows, the limiting pipe 481 does not flow, and the output end of the gun head 47 applies hot airflow to the surface of the hard capsule during movement, and the dispersed excess glue solution can be combed in all directions by the centrifugal force, ensuring that the glue solution thickness on the side surface of the capsule is uniform.

[0049] The present application realizes the intelligentization and refinement of the capsule glue solution treatment through its unique deformable "spherical spray gun" design; the core beneficial effect lies in that it can dynamically switch between the gathering and expanding modes according to the process requirements. In the gathering mode, the glue solution easily gathered on the bottom of the capsule can be impacted specifically to make it flow and be uniformly dispersed by the centrifugal force; in the expanding mode, the side surface of the capsule can be combed in all directions by the airflow, effectively ensuring the uniformity of the glue solution thickness on the side surface of the capsule. This active and adjustable dispersion method solves the quality problem of uneven capsule wall thickness caused by uneven glue solution distribution in the traditional process from the root.

[0050] As Figure 1 and Figure 13As shown, the cyclone assembly 5 includes a plurality of spiral strips 51 which are slidingly sleeved in the inner cylinder 44 in an annular array, the top of each spiral strip 51 is fixedly connected with a bent rod 52, and the bent rod 52 passes through the flow channel between the inner cylinder 44 and the outer cylinder 43, the bottom of the processing plate 41 is fixedly connected with a plurality of first top cylinders 53, and the first top cylinder 53 is vertically coaxial with the mounting hole 413, the output end of the first top cylinder 53 is fixedly connected with a top plate 54, and the end of the bent rod 52 is in movable contact with the top plate 54, and the contact surface of the top plate 54 is annular and stepped.

[0051] It is worth noting that when the gun head 47 is unfolded, it is attached to the inner wall of the inner cylinder 44, and cooperates with the reduced spiral channel to form a "constraint-guiding" double effect on the airflow, avoiding the pressure fluctuation caused by strong airflow impact, and at the same time, cooperating with the fillet 431 of the outer cylinder 43 to form an airflow, preventing the sudden rise of the air pressure in the inner cylinder 44, and protecting the preliminary formed glue liquid layer from being damaged.

[0052] Specifically, when the gun head 47 is unfolded, the output end of the gun head 47 is in communication, and the top plate 54 can be moved down or up through the first top cylinder 53. When moving down, the plurality of spiral strips 51 move downward due to their own weight, causing the distance between adjacent spiral strips 51 to be the maximum. After the spiral channel distance is maximized, the pressure loss of the airflow flow is reduced, and the hot airflow output by the gun head 47 can cover the surface of the capsule at a higher flow rate, accelerating the drying and shaping of the glue liquid, and shortening the forming period of a single capsule. For larger diameter capsules, the large distance spiral channel can provide more sufficient airflow flow space to ensure uniform heating of the entire capsule and avoid local overheating that causes the glue liquid to deteriorate; when moving up, the plurality of spiral strips 51 are pushed to move up, and the plurality of spiral strips 51 move up by different distances, so that the distance between the adjacent spiral strips 51 is reduced. The gun head 47 is unfolded and attached to the inner wall of the inner cylinder 44, and when the airflow output by the gun head 47 flows through, a strong cyclone is formed, and the centrifugal force generated by the capsule rotation is superimposed, which can more efficiently comb the excess glue liquid on the side surface of the capsule, avoid local glue liquid accumulation, and further ensure the uniformity of the capsule wall thickness and the air drying and shaping of the capsule surface; for thin-walled or high-precision hard capsules, strong cyclone can precisely control the glue liquid distribution and reduce forming defects (such as scratches and uneven thickness), and improve the pass rate of the capsule product.

[0053] The present application constructs a dynamically adjustable "spiral channel" through the spiral strip 51 which can move up and down to change the spacing, realizing precise control of the airflow field; its greatest benefit is that it can adapt to different process stage requirements: when the spacing of the spiral strip 51 is increased, a low-resistance, high-flow-rate flow channel is formed, which is beneficial to rapid drying and shaping and improves production efficiency; when the spacing of the spiral strip 51 is reduced, a strong spiral flow field is formed, and this spiral flow cooperates with the centrifugal force of the capsule self-rotation to efficiently scrape off excess glue and precisely air-dry the capsule surface, especially suitable for high-end capsule products with extremely high uniformity requirements for wall thickness, significantly reducing defects such as scratches and uneven thickness.

[0054] As shown in Figure 2 , Figure 4 and Figures 14-18 , the glue dipping assembly 6 includes a belt drive rotating system 61 arranged inside the frame 2, and the output shaft of the belt drive rotating system 61 passes through the upper surface of the frame 2, and the output shaft of the belt drive rotating system 61 is slidingly fitted with a bearing disc 62, the surface of the bearing disc 62 is provided with a plurality of mounting holes 621, and the mounting holes 621 correspond to the vertical shafts of the mounting holes 413, each mounting hole 621 is sleeved with a transmission cap 63, the side surface of each transmission cap 63 is provided with a transmission hole 631, the inside of each transmission cap 63 is rotatably sleeved with a transmission wheel 64, the bottom of the transmission wheel 64 is fixedly connected with a second top cylinder 65, the bottom of the transmission wheel 64 is fixedly connected with a capsule mold rod 66 with a hollow structure, and the second top cylinder 65 is arranged inside the capsule mold rod 66, the inside of the capsule mold rod 66 is slidingly sleeved with a top rod 67, and the end of the top rod 67 is sealingly fitted with the end of the capsule mold rod 66, the top rod 67 is drivingly fitted with the second top cylinder 65, the end surface of the top rod 67 is provided with a cutout 672, and a plurality of flow holes 671 are provided in the cutout 672 and communicate with the inside of the capsule mold rod 66, the top of the transmission cap 63 is fixedly connected with a communication shell 68, and the top rod 67 is sealingly sleeved in the inside of the communication shell 68, the communication shell 68 communicates with the cutout 672, the top of the support plate 42 is fixedly connected with a hydraulic system 69, the output end of the hydraulic system 69 is rotatably connected with the bearing disc 62, the top of the bearing disc 62 is fixedly connected with a plurality of servo motors 610 in an annular array, the output end of each servo motor 610 is fixedly connected with a drive wheel 611, the drive wheel 611 is drivingly fitted with the transmission wheel 64 through a transmission belt, and the transmission belt passes through the transmission hole 631.

[0055] It is worth noting that the hydraulic system 69 and the belt drive rotating system 61 are existing conventional technologies, which will not be described in detail here, and are composed of a motor, a belt, a pulley, and a roller shaft with a bearing, etc., to drive the capsule mold to rotate; the hydraulic system 69 is composed of a hydraulic rod, etc., to move the capsule mold rod 66 with a circular shaft downward or upward.

[0056] Specifically, during demolding, the second top cylinder 65 drives the ejector rod 67 to move downward, and the airflow flows through the flow-through hole 671, so that the air pressure in the hard capsule shell increases, causing it to separate from the capsule mold rod 66, wherein the air pressure can detect whether the hard capsule shell has a poor sealing problem.

[0057] The present application has high integration and automation, and its beneficial effects mainly lie in two aspects of efficient production and online quality monitoring. Through the structure of belt transmission and servo motor 610, synchronous revolution and independent rotation of the capsule mold rod 66 are realized, ensuring the uniformity of dipping and subsequent processing; what is particularly innovative is that the demolding mechanism combines air pressure ejection and air tightness detection functions, which not only effectively protects the capsule body from damage during demolding, but also indirectly judges whether the capsule shell has hidden defects such as micropores or poor sealing through airflow data detection, realizing the integration of production and quality inspection links and providing double protection for improving product pass rate.

[0058] Working principle: the embodiment provides a rotary capsule dipping forming device, and hard capsule dipping: first, the motor in the belt transmission rotating system 61 is made to work through the external circuit mechanism, the belt transmission causes the carrier disc 62 to rotate, after rotating to the specified area, the external control mechanism is used to drive the carrier disc 62 to move downward, the capsule mold rod 66 enters the glue liquid, at the same time, the servo motor 610 works, the driving wheel 611 rotates, the transmission belt makes the transmission wheel 64 rotate, and drives the capsule mold rod 66 to rotate, wherein the excess glue liquid is removed by centrifugal force, then the carrier disc 62 is driven upward by the hydraulic system 69, and the carrier disc 62 continues to rotate by the belt transmission rotating system 61, and the capsule mold rod 66 dipped is moved to the dispersion groove 412 area;

[0059] Uniform treatment of glue solution: At this time, the capsule mold rod 66 with glue solution is vertically coaxial with the inner cylinder 44, and is moved to the capsule mold rod 66 in the glue tank 411, which is moved downward by the hydraulic system 69, so that it continues to dip glue operation. When the carrier plate 62 moves downward, the rotary table 45 with a pneumatic slide is rotated by the external control system, the protrusions on the gun head 47 are limited in the waist-shaped groove 451, the protrusions on the gun head 47 slide in the waist-shaped hole 461, and the gun head 47 can be gathered or expanded; When gathering, the spherical pieces 48 are pressed against each other, the limiting tube 481 moves to the inside of the gun head 47, until the limiting tube 481 is sleeved on the surface of the top pipe 49, the top pipe 49 applies force to the blocking piece 4101 in the limiting tube 481, causing the blocking piece 4101 to move to one side, so that it is separated from the end plate of the I-shaped sealing plate 410 to form a flow channel, and the limiting tube 481 is inserted into the sealing perforation 472 on the main pipe 471, so that the main pipe 471 does not flow, and the limiting tube 481 flows. Air flows through the limiting tube 481 into the spherical spray gun composed of the spherical pieces 48, is sprayed from the output end of the spherical spray gun, applies hot air flow to the hard capsule bottom gathered glue solution, so that the glue solution can flow, and is uniformly dispersed by the centrifugal force generated by the self-rotation of the hard capsule; When expanding, the top pipe 49 is separated from the limiting tube 481, and is moved out of the sealing perforation 472, the limiting tube 481 inside applies force to the blocking piece 4101 by the second spring 4102, the blocking piece 4101 moves to sealing contact with the end plate of the I-shaped sealing plate 410, causing the limiting tube 481 not to flow, and the main pipe 471 flows because the limiting tube 481 is moved out of the sealing perforation 472, so that the main pipe 471 flows. The output end of the gun head 47 applies hot air flow to the surface of the hard capsule during movement, and disperses the dispersed excess glue solution through centrifugal force, ensuring that the glue solution on the side surface of the capsule is uniform in thickness;

[0060] Molding and demolding: when the gun head 47 is unfolded, the outlet of the gun head 47 is communicated, the top plate 54 can be moved downward or upward through the first top cylinder 53, when moved downward, the plurality of spiral strips 51 move downward due to their own weight, so that the distance between adjacent spiral strips 51 is the maximum value, after the spiral channel distance is maximized, the pressure loss of airflow flow is reduced, the hot airflow output by the gun head 47 can cover the capsule surface at a higher flow rate, accelerate the drying and molding of the glue solution, shorten the molding cycle of a single capsule, for larger diameter capsules, the large distance spiral channel can provide more sufficient airflow communication space, ensure that the capsule is heated uniformly, and avoid local overheating caused by the deterioration of the glue solution; when moved upward, the plurality of spiral strips 51 are pushed to move upward, and the plurality of spiral strips 51 move different distances, so that the distance between the spiral channels composed of adjacent spiral strips 51 is reduced, the gun head 47 is unfolded and attached to the inner wall of the inner cylinder 44, and when the airflow output by the gun head 47 flows through, a strong spiral flow is formed, and the centrifugal force generated by the self-rotation of the capsule is superimposed, which can more efficiently comb the excess glue solution on the side surface of the capsule, avoid local glue solution accumulation, further ensure the uniformity of the capsule wall thickness, and dry and mold the surface of the capsule; for thin-walled or high-precision hard capsules, strong spiral flow can accurately control glue distribution and reduce molding defects (such as scratches, uneven thickness).

[0061] In the demolding process, the motor-driven storage plate 71 in the material containing module 7 is first rotated through an external circuit mechanism, so that the storage plate 71 intersects with the bearing disc 62, and the bearing disc 62 moves upward during demolding through the hydraulic system 69, so that the storage plate 71 is located below the bearing disc 62 and intersects, the top rod 67 is first moved downward through the top rod 67, the airflow of the top rod 67 flows through the communication shell 68 from the flow hole 671 into the hard capsule, the air pressure in the hard capsule increases, so that it can be automatically demolded, and in the demolding process, the sealing effect of the hard capsule can be detected by applying pressure.

[0062] The embodiments of the present application are disclosed, but are not limited thereto, and those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, they are within the protection scope of the present application.

Claims

1. A rotary capsule dipping and molding apparatus, comprising a base (1), a dispersing mechanism (4) arranged on top of the base (1), a swirling assembly (5), and a dipping assembly (6), characterized in that, The adhesive application assembly (6) includes a rotatable support plate (62), and capsule mold rods (66) are rotatably connected to the holes on the support plate (62). A hydraulic system (69) is fixedly arranged above the base (1), and the hydraulic system (69) is transmission-compatible with the support plate (62). The dispersing mechanism (4) includes a processing plate (41) arranged on the top of the base (1). The inner wall of the processing plate (41) is provided with a glue-dipping groove (411) and a mounting hole (413). The mounting hole (413) corresponds to the vertical axis of the capsule mold rod (66). Each mounting hole (413) is fitted with an inner cylinder (44). Each inner cylinder (44) is provided with several gun heads (47) that can be gathered or unfolded. The inner wall of the top of each gun head (47) is fixedly connected to a main pipe (471). Each main pipe (471) has a sealing perforation on its side surface. (472) Each of the gun heads (47) has a spherical piece (48) connected to one side through a limiting tube (481). Several spherical pieces (48) form a spherical spray gun. The limiting tube (481) passes through the gun head (47) and is inserted into the sealing perforation (472). When several spherical pieces (48) are squeezed, the limiting tube (481) is inserted into the sealing perforation (472), the main pipe (471) is not flowing, and the limiting tube (481) is flowing. When the spherical pieces (48) are elastically moved, the limiting tube (481) moves out of the perforation, the main pipe (471) is flowing, and the limiting tube (481) is not flowing. When the capsule is gathered: the main pipe (471) is not flowing, the limiting pipe (481) is flowing, the spherical plate (48) is gathered into a spherical spray gun, and hot air is applied to the bottom of the hard capsule, which is combined with the flow of the glue and the centrifugal force of rotation to disperse the glue; when the capsule is unfolded: the main pipe (471) is flowing, the limiting pipe (481) is not flowing, and the output end of the gun head (47) applies hot air to the surface of the capsule while moving, which is combined with the centrifugal force to comb out the excess glue and ensure that the side surface thickness is consistent.

2. The rotary capsule dipping and molding device according to claim 1, characterized in that, A frame (2) is arranged on one side of the base (1), a rack (3) is arranged on one side of the frame (2), a material holding module (7) is arranged on the top of the rack (3), and a storage plate (71) is arranged at the output end of the material holding module (7).

3. The rotary capsule dipping and forming device according to claim 2, characterized in that, The dispersing mechanism (4) also includes a support plate (42), which is fixedly connected to the top of the processing plate (41). The inner wall of the processing plate (41) is provided with a dispersing groove (412). Each mounting hole (413) is fitted with an outer sleeve (43). Each outer sleeve (43) has a rounded corner (431) along its top edge. The inner sleeve (44) is fitted inside the outer sleeve (43), and a flow channel is left between the inner sleeve (44) and the outer sleeve (43).

4. The rotary capsule dipping and forming device according to claim 3, characterized in that, The bottom inner wall of the external cylinder (43) is sealed and rotatably adapted to a turntable (45) with a pneumatic slider. Each turntable (45) has several waist-shaped grooves (451) arranged in a ring on its upper surface. A fixed plate (46) is sleeved inside the external cylinder (43) above the turntable (45). Each fixed plate (46) has waist-shaped holes (461) arranged in a ring on its upper surface. The protrusion on the gun head (47) passes through the waist-shaped holes (461) and is inserted into the waist-shaped grooves (451).

5. The rotary capsule dipping and forming device according to claim 4, characterized in that, Each of the gun heads (47) has a rectangular hole (473) on one side. The limiting tube (481) is sealed and slidably adapted inside the rectangular hole (473). A first spring (482) is sleeved on the inner wall of the end of each of the limiting tubes (481). A top tube (49) is fixedly connected to the inner wall of one side of each of the gun heads (47). The end of the first spring (482) is fixedly connected to the end of the top tube (49). An I-shaped sealing plate (410) is sleeved inside each of the limiting tubes (481). A plug (4101) is sealed and slidably adapted to the guide rod surface on the I-shaped sealing plate (410). The plug (4101) is in movable contact with the end of the top tube (49). A second spring (4102) is sleeved on the guide rod surface on the I-shaped sealing plate (410). The second spring (4102) is elastically adapted to the plug (4101).

6. The rotary capsule dipping and forming device according to claim 5, characterized in that, The swirl assembly (5) includes several spiral strips (51), which are arranged in a ring array and slidably sleeved inside the inner cylinder (44). Each spiral strip (51) is fixedly connected to a bending rod (52) at its top, and the bending rod (52) passes through the flow channel between the inner cylinder (44) and the outer cylinder (43). The bottom of the processing plate (41) is fixedly connected to several first top cylinders (53), and the first top cylinders (53) are vertically coaxial with the mounting hole (413).

7. The rotary capsule dipping and forming device according to claim 6, characterized in that, The output end of the first top cylinder (53) is fixedly connected to a top plate (54), and the top plate (54) is in contact with the end of the bending rod (52). The contact surface of the top plate (54) is in the shape of an annular step.

8. The rotary capsule dipping and molding device according to claim 7, characterized in that, The adhesive application assembly (6) also includes a belt drive rotation system (61), which is arranged inside the frame (2). The output shaft of the belt drive rotation system (61) passes through the upper surface of the frame (2). The bearing plate (62) is slidably adapted to the surface of the output shaft of the belt drive rotation system (61). The surface of the bearing plate (62) is provided with several mounting ports (621). Each mounting port (621) is fitted with a transmission cap (63). Each transmission cap (63) is provided with a transmission through hole (631) on its side surface. A transmission wheel (64) is rotatably fitted inside the transmission cap (63). A second top cylinder (65) is fixedly connected to the bottom of the transmission wheel (64). The capsule mold rod (66) is fixedly connected to the bottom of the transmission wheel (64), and the second top cylinder (65) is arranged inside the capsule mold rod (66).

9. A rotary capsule dipping and forming device according to claim 8, characterized in that, The capsule mold rod (66) is slidably fitted with a push rod (67), and the end of the push rod (67) is sealed and adapted to the end of the capsule mold rod (66). The push rod (67) is adapted to the second top cylinder (65) for transmission. A cut (672) is opened on the end surface of the push rod (67). Several flow holes (671) communicating with the inside of the capsule mold rod (66) are opened in the cut (672). A connecting shell (68) is fixedly connected to the top of the transmission cap (63), and the push rod (67) is sealed and fitted inside the connecting shell (68). The connecting shell (68) is connected to the cut (672).

10. A rotary capsule dipping and forming device according to claim 9, characterized in that, The hydraulic system (69) is fixedly connected to the top of the support plate (42). Several servo motors (610) are fixedly connected to the top of the bearing plate (62) in a ring array. Each servo motor (610) has a drive wheel (611) fixedly connected to its output end. The drive wheel (611) and the transmission wheel (64) are adapted to each other by a transmission belt, and the transmission belt passes through the transmission hole (631).

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