Capsule filling device

Abstract

The invention discloses a capsule filling device in the technical field of medical equipment.The capsule filling device comprises a hopper, a filling device, a capsule conveying device and a control system, the capsule conveying device is responsible for conveying empty capsules to a filling position and sending out the filled capsules, and the control system is used for controlling operation of equipment and setting of various parameters; the filling device comprises a filling box, a driving mechanism, a plurality of filling blocks and filling needles, the filling box is connected to the top end of the capsule conveying device and communicated with the hopper, the filling blocks are communicated to the bottom end of the filling box, the filling needles are connected to the bottom ends of the filling blocks, and the lengths of the filling needles are sequentially reduced. The conveying direction of the capsule conveying device is consistent with the length decreasing direction of the multiple filling needles, and the driving mechanism is used for driving the medicine powder in the filling block to reach the capsules through the filling needles.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a capsule filling device. Background Art

[0002] In the current field of capsule filling technology, capsule filling devices generally follow the traditional mode of one-time filling. However, this method has exposed several significant and non-ignorable defects in practice. As a special form of drug administration, capsules have a small internal space and a unique shape, which places extremely high demands on the filling process. Due to the limitations of the internal space of the capsule and the particularity of the shape, one-time filling often cannot ensure that the drug powder can be evenly and thoroughly distributed throughout the capsule. This phenomenon of insufficient filling inevitably leads to gaps or unfilled areas inside the capsule. These gaps not only directly weaken the accuracy of the drug dosage, but also make it difficult to keep the effective drug ingredients contained in each capsule consistent, which may affect the patient's treatment effect. Secondly, these gaps may also become hidden dangers in the subsequent processing process. In the subsequent packaging, transportation or storage links, due to the influence of external factors such as vibration and collision, the drug powder in these gaps may splash or scatter, which not only causes the waste of drugs, but also may pose a potential pollution risk to the production environment, further threatening the quality and safety of drugs.

[0003] In addition, the one-time filling method may also cause the distribution of drug powder inside the capsule to be uneven. This uneven distribution will not only affect the dissolution rate and efficiency of the drug, but also make it difficult to effectively control the release process of the drug in the body, which may reduce the bioavailability and therapeutic effect of the drug. At the same time, the uneven distribution of drug powder may also cause the local concentration of the drug in the patient's body to be too high or too low, thereby increasing the risk of drug side effects and posing a potential threat to the patient's health. Summary of the invention

[0004] The present invention is intended to provide a capsule filling device to solve the problem that the existing capsule filling device adopts one-time filling, resulting in gaps in the capsule, thereby causing part of the medicine powder to splash.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a capsule filling device, comprising a hopper, a filling device, a capsule conveying device and a control system, wherein the capsule conveying device is responsible for transporting empty capsules to the filling position and delivering the filled capsules, and the control system is used to control the operation of the equipment and the setting of various parameters, and the filling device comprises a filling box, a driving mechanism, a plurality of filling blocks and a filling needle, wherein the filling box is connected to the top of the capsule conveying device, the filling box is connected to the hopper, the plurality of filling blocks are connected to the bottom of the filling box, the plurality of filling needles are connected to the bottom of the filling block, the lengths of the plurality of filling needles decrease successively, the conveying direction of the capsule conveying device is consistent with the direction in which the lengths of the plurality of filling needles decrease successively, and the driving mechanism is used to drive the powder in the filling block to reach the capsule through the filling needle.

[0006] The working principle of the present invention is as follows: the medicine to be filled is placed in the hopper, and the dosage for each filling is set. The equipment is started, and the empty capsules automatically fall from the capsule bin into the conveying track and are conveyed to the filling position. At this time, the filling needles will be driven by the driving mechanism and pass through filling needles of different lengths. The powder is respectively filled into the inner bottom, middle and top of the capsule until the filling is completed. After the filling is completed, the capsule conveying device transports the filled capsules out of the device, completing the entire filling process.

[0007] Furthermore, the driving mechanism includes a driving plate and a plurality of driving rods, the driving block is provided with a plurality of feeding channels connecting the filling box and the filling needle, the plurality of driving rods correspond to the feeding channels one by one, the driving rods are located in the feeding channels, the plurality of driving rods are connected to the bottom end of the driving plate, and the driving plate is connected to an external lifting assembly. By setting the syringe principle between the driving rod and the feeding channel, the powder can quickly rush out of the filling needle and reach the capsule.

[0008] Furthermore, the lifting assembly is a hydraulic cylinder, and the output shaft of the hydraulic cylinder is vertically connected to the driving plate. Through the arrangement of the hydraulic cylinder, the driving plate can drive multiple driving rods to move simultaneously, so that the filling needles can fill the capsules at the same time.

[0009] Furthermore, the feeding channel is configured to be wide at the top and narrow at the bottom. The design of the feeding channel shape enables the filling needle to obtain a relatively high pressure to quickly spray the powder.

[0010] Furthermore, the filling box is connected with a limit plate inside, and the plurality of driving rods pass through the limit plate downward, and the limit plate is located at the bottom of the driving plate. The setting of the limit plate enables the driving rod to move downward stably.

[0011] Furthermore, there is a certain distance between the limit plate and the driving plate. By setting the distance between the limit plate and the driving plate, the driving rod is further stabilized.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention arranges filling needles of different lengths in descending order, so that the powder in the capsule can be filled in multiple stages. This method avoids the problem of uneven distribution of powder that may occur in the traditional one-time filling method, and ensures that the powder can be evenly and completely filled in the capsule. Uniform filling not only improves the dissolution rate and efficiency of the drug, but also makes the release process of the drug in the body more controllable, which helps to improve the bioavailability and therapeutic effect of the drug. 2. The graded multiple filling method enables the powder to be completely filled in the capsule, avoiding the gaps or unfilled areas that may exist in the traditional one-time filling method. This not only improves the accuracy of the drug dosage, ensures that the effective drug ingredients contained in each capsule are consistent, but also reduces the risk of drug waste and environmental pollution. 3. By avoiding splashing or scattering of powder in the subsequent processing process, the present invention reduces the risk of drug waste and environmental pollution, and further ensures the safety and hygiene of the production environment. At the same time, the evenly filled powder also reduces the possibility of excessive or low local concentration of the drug in the patient's body, and reduces the risk of drug side effects. 4. The device can adapt to the filling needs of different types and specifications of drugs by simply adjusting the length and number of filling needles. This flexibility makes the device have a wide range of application prospects in the field of pharmaceutical production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a capsule filling device of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the filling device;

[0015] Figure 3 for Figure 2 Left section view of the filling box in the figure. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The figure marks in the drawings of the specification include: hopper 1, filling device 2, filling box 201, driving plate 202, driving rod 203, limiting plate 204, filling block 205, filling needle 206, feeding channel 207, hydraulic cylinder 208, capsule conveying device 3, discharge port 4, capsule 5.

[0018] The embodiment is basically as shown in the attached Figure 1 -Attached Figure 3As shown: a capsule filling device, including a hopper 1, a filling device 2, a capsule conveying device 3 and a control system. The capsule conveying device 3 is responsible for transporting empty capsules 5 to the filling position and delivering the filled capsules 5. The control system is used to control the operation of the device and the setting of various parameters. The filling device 2 includes a filling box 201, a driving mechanism, three filling blocks 205 and four filling needles 206. The filling box 201 is fixedly connected to the top of the capsule conveying device 3, and the bottom of the filling box 201 is connected to the hopper 1. The three filling blocks 205 are evenly fixedly connected to the bottom of the filling box 201. The four filling needles 206 are fixedly connected to the bottom of the filling blocks 205. The lengths of the four filling needles 206 decrease in sequence. The conveying direction of the capsule conveying device 3 is consistent with the direction in which the lengths of the four filling needles 206 decrease. The driving mechanism includes a driving plate 202 and ten Two driving rods 203 and a driving plate 202 are slidably connected to the inside of the filling box 201. The inside of the filling box 201 is fixedly connected to a limit plate 204. The limit plate 204 is located below the driving plate 202. There is a certain distance between the driving plate 202 and the limit plate 204. Each driving block is provided with four feeding channels 207 connecting the filling box 201 and the filling needle 206. The feeding channels 207 are wide at the top and narrow at the bottom. The four driving rods 203 correspond to the four feeding channels 207 one by one. The driving rods 203 are slidably connected in the feeding channels 207 and the driving rods 203 and the feeding channels 207 are seamlessly fitted. The twelve driving rods 203 are fixedly connected to the bottom end of the driving plate 202 and pass through the limit plate 204. The driving plate 202 is connected to the output shaft of an external hydraulic cylinder 208, and the output shaft of the hydraulic cylinder 208 is vertically upward.

[0019] The specific implementation process is as follows: put the medicine to be filled into the hopper 1, and set the dosage for each filling, start the equipment, and the empty capsule 5 will automatically fall from the capsule 5 bin into the conveying track and be conveyed to the filling position. At this time, the hydraulic cylinder 208 drives the driving plate 202 to move upward, so that the twelve driving rods 203 leave the feeding channel 207. At this time, the medicine powder falls from the gap into the feeding channel 207. After falling to the filling dosage, the hydraulic cylinder 208 drives the twelve driving rods 203 to slide into the feeding channel 207. The driving rods 203 continue to move downward, so that pressure is generated in the feeding channel 207, and the medicine powder is transported to the capsule 5 through the filling needle 206. After passing through the filling needles 206 of different lengths, the medicine powder is respectively filled into the inner bottom, middle and top of the capsule 5 until the filling is completed. The capsule conveying device 3 transports the filled capsule 5 out of the device through the discharge port 4 to complete the entire filling process.

[0020] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A capsule filling device, comprising a hopper, a filling device, a capsule conveying device and a control system, wherein the capsule conveying device is responsible for transporting empty capsules to a filling position and delivering filled capsules, and the control system is used to control the operation of the device and the setting of various parameters, and is characterized in that: The filling device includes a filling box, a driving mechanism, a plurality of filling blocks and a filling needle. The filling box is connected to the top of the capsule conveying device, the filling box is connected to the hopper, the plurality of filling blocks are connected to the bottom of the filling box, the plurality of filling needles are connected to the bottom of the filling blocks, the lengths of the plurality of filling needles decrease successively, the conveying direction of the capsule conveying device is consistent with the direction in which the lengths of the plurality of filling needles decrease, and the driving mechanism is used to drive the powder in the filling block to reach the capsule through the filling needle.

2. A capsule filling device according to claim 1, characterized in that: The driving mechanism includes a driving plate and multiple driving rods. The driving block is provided with multiple feeding channels connecting the filling box and the filling needle. The multiple driving rods correspond to the feeding channels one by one. The driving rods are located in the feeding channels. The multiple driving rods are connected to the bottom end of the driving plate, and the driving plate is connected to an external lifting component.

3. A capsule filling device according to claim 2, characterized in that: The lifting assembly is a hydraulic cylinder, and the output shaft of the hydraulic cylinder is vertically connected to the driving plate.

4. A capsule filling device according to claim 3, characterized in that: The material discharge channel is configured to be wide at the top and narrow at the bottom.

5. A capsule filling device according to claim 4, characterized in that: The filling box is internally connected with a limit plate, and a plurality of driving rods pass through the limit plate downward, and the limit plate is located at the bottom of the driving plate.

6. A capsule filling device according to claim 5, characterized in that: There is a certain distance between the limiting plate and the driving plate.

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