A capsule filling machine reject device

Abstract

The application relates to the technical field of capsule production and rejection, in particular to a capsule filling machine rejection device, which comprises a filling machine body, an inclined material frame, a stainless steel screen, a main material blocking roller shaft, an auxiliary pressing disc, an extruding assembly and a material rejection assembly; the inclined material frame is fixedly connected below the output end of the filling machine body; the stainless steel screen is fixedly connected to the top inner side of the inclined material frame; the main material blocking roller shaft is rotatably connected to the inner side of the inclined material frame; and the auxiliary pressing disc is slidably connected to one side of the inclined material frame close to the main material blocking roller shaft. The capsule filling machine rejection device can realize batch material pushing by the electric rotating shaft and the material pushing teeth in the material rejection assembly, and the processing speed is improved by orders of magnitude compared with artificial single capsule inspection; the isolation plate arranged on the inner side can effectively separate the capsules, prevent the capsules from piling up, overlapping or colliding with each other, ensure that the capsules enter the rejection area in a single layer or an ordered state, create the best conditions for accurate rejection, and further improve the rejection accuracy.

Description

Technical Field

[0001] This application relates to the field of waste removal technology in capsule production, and in particular to a waste removal device for a capsule filling machine. Background Technology

[0002] Capsules are sac-like objects made of special film-forming materials, into which contents or dosages are filled for easy swallowing. They protect the medicinal properties from degradation and also protect the digestive and respiratory tracts from irritation. After filling, a small number of capsules with defects or insufficient filling may be discarded before further packaging. Chinese utility model patent CN213967708U discloses a capsule rejection and cleaning device. Utilizing the principle of vacuum negative pressure, a vacuum motor extracts air from the adsorption device to create negative pressure, adsorbing underfilled or missing capsules. These defective capsules are then transferred to a storage device via a channel box. Simultaneously, due to the continuous adsorption effect, impurities and residual medication on the surface of normal capsules and conveyor rollers can also be adsorbed, improving the cleanliness of the production line and the capsule pharmaceuticals. This device has a simple structure, is easy to operate, and can batch reject and collect underfilled or missing defective capsules, saving time and labor.

[0003] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and require improvement: After capsule filling is completed, in addition to insufficient filling, there are also appearance defects. Currently, the rejection of such defective capsules usually relies on manual visual inspection, which is greatly affected by factors such as distraction and limited perspective, and is prone to problems such as missed detection and misjudgment. It is difficult to achieve comprehensive and stable quality monitoring, which in turn poses a potential risk to the overall quality consistency of the final product. Utility Model Content

[0004] This application provides a defect rejection device for a capsule filling machine to improve the following technical problems: the rejection of defective capsules usually relies on manual visual inspection, which is greatly affected by factors such as distraction and limited perspective, and is prone to problems such as missed detection and misjudgment, making it difficult to achieve comprehensive and stable quality monitoring, thus posing a potential risk to the overall quality consistency of the final product.

[0005] This application provides a waste rejection device for a capsule filling machine, which adopts the following technical solution: A waste removal device for a capsule filling machine includes a filling machine body, an inclined material frame, a stainless steel screen, a main guide roller shaft, an auxiliary pressure plate, an extrusion assembly, and a waste removal assembly. The inclined material frame is fixedly connected below the output end of the filling machine body. The stainless steel screen is fixedly connected to the inner top of the inclined material frame. The main guide roller shaft is rotatably connected to the inner side of the inclined material frame. The auxiliary pressure plate is slidably connected to the side of the inclined material frame near the main guide roller shaft. The extrusion assembly is installed on the outer side of the inclined material frame. The waste removal assembly is installed on the inclined material frame above the main guide roller shaft and the auxiliary pressure plate.

[0006] In one feasible technical solution of this application, the extrusion assembly includes a push cylinder, a transverse rod, a connecting bracket, and an insertable slider. The push cylinder is installed on the outside of the inclined material frame. The connecting bracket is fixedly connected to the outside of the output end of the push cylinder. The transverse rod passes through the interior of the connecting bracket and is fixedly connected to the outside of the inclined material frame. The insertable slider is fixedly connected to the outside of the connecting bracket, and one end of the insertable slider is fixedly connected to the surface of the auxiliary pressure plate.

[0007] In one feasible technical solution of this application, the rejecting assembly includes a positioning boss, a hydraulic cylinder, a lifting support, an electric rotating shaft, material-picking teeth, and an empty bladder rejecting part. The positioning boss is fixedly connected to the top of the inclined material frame, the hydraulic cylinder is installed on the top of the positioning boss, the lifting support is fixedly connected below the output end of the hydraulic cylinder, the electric rotating shaft is installed on the bottom inner side of the lifting support, the material-picking teeth are fixedly connected to the outer side of the electric rotating shaft and are used to reject defective and qualified bladders in batches, and the empty bladder rejecting part is installed on the outer side of the positioning boss.

[0008] In one feasible technical solution of this application, a lifting material plate and an electric telescopic rod are provided on the side of the inclined material frame near the stainless steel screen. The electric telescopic rod is installed on both sides inside the inclined material frame. The lifting material plate is fixedly connected above the electric telescopic rod and is used to push unqualified capsules away from the lifting material plate in the descending state through the pushing teeth.

[0009] In one feasible technical solution of this application, the bottom of the inclined material frame is provided with a discharge trough that is larger than the lifting material plate.

[0010] In one feasible technical solution of this application, a waste box is also provided below the discharge trough.

[0011] In one feasible technical solution of this application, the extrusion surface of the auxiliary pressure plate and the capsule is set as a ramp surface with rounded corners. The auxiliary pressure plate is pushed forward towards the main feed roller shaft through the ramp surface and scoops the capsule to the top of the auxiliary pressure plate.

[0012] In one feasible technical solution of this application, the inner side of the inclined material frame is further provided with a separator plate for separating capsules.

[0013] In one feasible technical solution of this application, a DC motor and a vision module are also provided on the outside of the inclined material frame. The output end of the DC motor is fixedly connected to one end of the main guide roller shaft, and the vision module is connected to the controller on the outside of the filling machine body through a network cable.

[0014] In one feasible technical solution of this application, the empty bladder removal part includes an air pump, an air duct, and an air blowing pipe. The air pump is installed on the top of the filling machine body, the air duct is installed on the outside of the output end of the air pump and is fixedly connected to the outside of the positioning protrusion, and the air blowing pipe is fixedly connected to the bottom of the air duct and is used for vertical air blowing.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This device performs preliminary filtration of capsules through a stainless steel screen before they enter the main working area, directly removing broken or severely deformed defective capsules and reducing the burden on the subsequent main rejection process. At a stable station formed by the main guide roller and auxiliary pressure plate, the rejection assembly operates precisely, ensuring that only capsules deemed qualified pass through. The electric rotating shaft and feeding teeth in the rejection assembly enable batch feeding, resulting in an order-of-magnitude increase in processing speed compared to manual single-capsule inspection, making it ideal for the needs of modern large-scale production. Furthermore, the sloping surfaces of the extrusion assembly and the auxiliary pressure plate work in tandem to stably scoop up and transport the capsules to the rejection station. The process is gentle, avoiding secondary damage to the capsules. The rejection teeth can effectively distinguish and remove defective products during rotation and lifting. The inner isolation plate can effectively separate the capsules, preventing them from piling up, overlapping, or colliding with each other, ensuring that the capsules enter the rejection area in a single layer or in an orderly manner, creating optimal conditions for accurate rejection and further improving the accuracy of rejection. In addition, the lifting support is raised to its highest position, and the air volume is adjusted by the air pump and air is sent unidirectionally to the air duct. The air in the air duct is blown vertically along the air pipe towards the surface of the capsules scooped up by the auxiliary pressure plate. If empty capsules are found, they are directly screened out. Non-empty capsules are fully visually inspected by the vision module during rotation. If visual defects are found, they are directly screened out. This realizes the integrated process of air blowing and external surface inspection of this device, reducing the floor space required. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the waste removal device of the capsule filling machine according to an embodiment of this application.

[0018] Figure 2 This is a side view of the tilted material frame according to an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the extrusion assembly in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of the isolation plate and stainless steel screen in the embodiments of this application.

[0021] Figure 5 This is a schematic diagram of the cross-section of the inclined material frame in an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the structure of the rejection component in the embodiments of this application.

[0023] Figure 7 yes Figure 1 Enlarged view of part A in the middle.

[0024] Explanation of reference numerals in the attached figures: 1. Filling machine body; 2. Inclined material frame; 3. Stainless steel screen; 4. Main feed roller shaft; 5. Auxiliary pressure plate; 6. Extrusion assembly; 61. Push cylinder; 62. Horizontal rod; 63. Connecting bracket; 64. Insertion slider; 7. Rejection assembly; 71. Positioning boss; 72. Hydraulic cylinder; 73. Lifting support; 74. Electric rotating shaft; 75. Feeding teeth; 76. Empty bag removal unit; 761. Air pump; 762. Air duct; 763. Air duct; 8. Lifting material plate; 9. Electric telescopic rod; 10. Discharge chute; 11. Waste box; 12. Isolation plate; 13. DC motor; 14. Vision module. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0028] This application discloses a waste rejection device for a capsule filling machine. (Refer to...) Figures 1 to 7 The capsule filling machine waste removal device includes a filling machine body 1, an inclined material frame 2, a stainless steel screen 3, a main guide roller shaft 4, an auxiliary pressure plate 5, an extrusion assembly 6, and a waste removal assembly 7. The inclined material frame 2 is fixedly connected below the output end of the filling machine body 1. The stainless steel screen 3 is fixedly connected to the top inner side of the inclined material frame 2. The main guide roller shaft 4 is rotatably connected to the inner side of the inclined material frame 2. The auxiliary pressure plate 5 is slidably connected to the side of the inclined material frame 2 near the main guide roller shaft 4. The extrusion assembly 6 is installed on the outer side of the inclined material frame 2. The waste removal assembly 7 is installed on the inclined material frame 2 above the main guide roller shaft 4 and the auxiliary pressure plate 5.

[0029] This device is directly connected to the filling machine 1, enabling seamless and continuous operation from filling to waste removal. No downtime for manual sorting is required, resulting in a smooth production process and significantly improving the overall production efficiency.

[0030] The extrusion assembly 6 includes a push cylinder 61, a transverse rod 62, a connecting bracket 63, and an insert slider 64. The push cylinder 61 is installed on the outside of the inclined material frame 2. The connecting bracket 63 is fixedly connected to the outside of the output end of the push cylinder 61. The transverse rod 62 passes through the inside of the connecting bracket 63 and is fixedly connected to the outside of the inclined material frame 2. The insert slider 64 is fixedly connected to the outside of the connecting bracket 63, and one end of the insert slider 64 is fixedly connected to the surface of the auxiliary pressure plate 5.

[0031] At the stable working position formed by the main guide roller 4 and the auxiliary pressure plate 5, the rejecting component 7 performs precise operation, ensuring that only capsules that are confirmed to be qualified can pass through, which greatly improves the overall quality consistency of the final product and eliminates potential quality risks.

[0032] The rejecting assembly 7 includes a positioning boss 71, a hydraulic cylinder 72, a lifting support 73, an electric rotating shaft 74, a material-picking tooth 75, and an empty capsule rejecting part 76. The positioning boss 71 is fixedly connected to the top of the inclined material frame 2. The hydraulic cylinder 72 is installed on the top of the positioning boss 71. The lifting support 73 is fixedly connected below the output end of the hydraulic cylinder 72. The electric rotating shaft 74 is installed on the bottom inner side of the lifting support 73. The material-picking tooth 75 is fixedly connected to the outside of the electric rotating shaft 74 and is used to reject defective and qualified capsules in batches. The empty capsule rejecting part 76 is installed on the outside of the positioning boss 71.

[0033] The inclined material frame 2 is equipped with a lifting material plate 8 and an electric telescopic rod 9 on the side near the stainless steel screen 3. The electric telescopic rod 9 is installed on both sides inside the inclined material frame 2. The lifting material plate 8 is fixedly connected above the electric telescopic rod 9 and is used to push the unqualified capsules away from the lifting material plate 8 in the downward state through the material pushing teeth 75.

[0034] The bottom of the inclined material frame 2 is provided with a discharge chute 10 that is larger than the lifting material plate 8.

[0035] A waste box 11 is also provided below the discharge chute 10.

[0036] The 10-box discharge chute allows waste to be collected and cleaned, maintaining a clean working environment and enabling unmanned waste collection.

[0037] The auxiliary pressure plate 5 and the extrusion surface of the capsule are set as a slope surface with rounded corners. The auxiliary pressure plate 5 is pushed towards the main feed roller shaft 4 through the slope surface and the capsule is scooped to the top of the auxiliary pressure plate 5.

[0038] The inner side of the inclined material frame 2 is also provided with a separator plate 12 for separating capsules.

[0039] A DC motor 13 and a vision module 14 are also provided on the outside of the inclined material frame 2. The output end of the DC motor 13 is fixedly connected to one end of the main guide roller shaft 4, and the vision module 14 is connected to the controller on the outside of the filling machine body 1 through a network cable.

[0040] The empty bladder removal unit 76 includes an air pump 761, an air duct 762, and an air blowing pipe 763. The air pump 761 is installed on the top of the filling machine body 1. The air duct 762 is installed on the outside of the output end of the air pump 761 and is fixedly connected to the outside of the positioning bracket 71. The air blowing pipe 763 is fixedly connected to the bottom of the air duct 762 and is used for vertical air blowing.

[0041] The usage process of the capsule filling machine waste rejection device in this embodiment is roughly as follows: The capsules first fall onto the stainless steel screen 3 at the top of the inclined material frame 2. The screen performs preliminary filtration of all capsules, directly removing those with excessively flawed shapes, while qualified capsules continue to slide down the inclined surface. Guided by the partition plate 12, the sliding capsules are spaced apart and enter the main working area in an orderly manner. Here, the main feed roller 4 rotates slowly under the drive of the DC motor 13, forming a stable V-shaped or slit-like channel together with the auxiliary pressure plate 5, organizing the capsules into an orderly queue and temporarily storing them while rotating. When feeding is needed, the extrusion assembly 6 starts working. Its push cylinder 61 pushes the connecting bracket 63 to move along the fixed transverse rod 62, thereby driving the auxiliary pressure plate 5 to slide towards the main feed roller 4 via the insert slider 64. The auxiliary pressure plate 5 has a rounded-corner ramp surface at its front end, which gently "scoops up" and guides the capsules upwards during the pushing process, allowing them to leave the temporary storage area and enter the rejection area. During the rejection process, the hydraulic cylinder 72 drives the lifting support 73 to descend, bringing the electric rotating shaft 74 and the material-pushing teeth 75 mounted on it closer to the capsule layer. Subsequently, the electric rotating shaft 74 rotates, driving the material-pushing teeth 75 to push the capsules. At this time, the lifting material plate 8 is in a descending position under the control of the electric telescopic rod 9. The material-pushing teeth 75 push the identified defective capsules to the descended material plate area, and the capsules then fall into the waste box 11 below through the discharge chute 10. The qualified capsules are pushed to the other side of the main guide roller shaft 4 and enter the next process. After one rejection cycle is completed, the lifting support 73 rises and resets, and the auxiliary pressure plate 5 returns to its original position under the drive of the extrusion component 6, ready for the next extrusion and rejection cycle. Only one worker is needed to complete the entire rejection operation. In addition, the lifting support 73 is raised to its highest position, and the air volume is adjusted by the air pump 761 and air is sent unidirectionally to the air duct 762. The air in the air duct 762 is blown vertically along the air blowing pipe 763 onto the surface of the capsule scooped up by the auxiliary pressure plate 5. If there is an empty capsule, it is directly screened out. Non-empty capsules are fully visually inspected by the vision module 14 during rotation. If there is a visual defect, it is directly screened out. This realizes the integrated process of air blowing and external surface inspection of this device, reducing the footprint. In addition, the waste box 11 has a scale on its surface, which can be visually observed and estimated in real time to calculate the scrap rate and detect abnormal fluctuations in the scrap rate in a timely manner. Once the rejection device or a batch of products has an abnormality, it can be detected earlier to reduce losses. Waste products are arranged from bottom to top in the order of rejection, making it easy to distinguish batches and thus facilitate the picking out of abnormal batches of medicines and the analysis of the causes of the abnormalities.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waste rejection device for a capsule filling machine, characterized in that, The machine includes a filling body (1), an inclined material frame (2), a stainless steel screen (3), a main guide roller shaft (4), an auxiliary pressure plate (5), an extrusion assembly (6), and a rejection assembly (7). The inclined material frame (2) is fixedly connected below the output end of the filling body (1). The stainless steel screen (3) is fixedly connected to the top inner side of the inclined material frame (2). The main guide roller shaft (4) is rotatably connected to the inner side of the inclined material frame (2). The auxiliary pressure plate (5) is slidably connected to the side of the inclined material frame (2) near the main guide roller shaft (4). The extrusion assembly (6) is installed on the outer side of the inclined material frame (2). The rejection assembly (7) is installed on the inclined material frame (2) above the main guide roller shaft (4) and the auxiliary pressure plate (5).

2. The waste rejection device for a capsule filling machine according to claim 1, characterized in that, The extrusion assembly (6) includes a push cylinder (61), a transverse rod (62), a connecting bracket (63), and an insert slider (64). The push cylinder (61) is installed on the outside of the inclined material frame (2). The connecting bracket (63) is fixedly connected to the outside of the output end of the push cylinder (61). The transverse rod (62) passes through the inside of the connecting bracket (63) and is fixedly connected to the outside of the inclined material frame (2). The insert slider (64) is fixedly connected to the outside of the connecting bracket (63), and one end of the insert slider (64) is fixedly connected to the surface of the auxiliary pressure plate (5).

3. The waste rejection device for a capsule filling machine according to claim 1, characterized in that, The material rejection assembly (7) includes a positioning boss (71), a hydraulic cylinder (72), a lifting support (73), an electric rotating shaft (74), material-picking teeth (75), and an empty capsule rejection part (76). The positioning boss (71) is fixedly connected to the top of the inclined material frame (2). The hydraulic cylinder (72) is installed on the top of the positioning boss (71). The lifting support (73) is fixedly connected below the output end of the hydraulic cylinder (72). The electric rotating shaft (74) is installed on the bottom inner side of the lifting support (73). The material-picking teeth (75) are fixedly connected to the outside of the electric rotating shaft (74) and are used to reject defective and qualified capsules in batches. The empty capsule rejection part (76) is installed on the outside of the positioning boss (71).

4. The waste rejection device for a capsule filling machine according to claim 3, characterized in that, The inclined material frame (2) is provided with a lifting material plate (8) and an electric telescopic rod (9) on the side near the stainless steel screen (3). The electric telescopic rod (9) is installed on both sides inside the inclined material frame (2). The lifting material plate (8) is fixedly connected above the electric telescopic rod (9) and is used to push the unqualified capsules away from the lifting material plate (8) in the downward state through the pushing teeth (75).

5. The waste rejection device for a capsule filling machine according to claim 4, characterized in that, The bottom of the inclined material frame (2) is provided with a discharge chute (10) that is larger than the lifting material plate (8).

6. The waste rejection device for a capsule filling machine according to claim 5, characterized in that, A waste box (11) is also provided below the discharge trough (10).

7. The waste rejection device for a capsule filling machine according to claim 1, characterized in that, The auxiliary pressure plate (5) and the extrusion surface of the capsule are configured as a slope surface with rounded corners. The auxiliary pressure plate (5) is pushed towards the main baffle roller shaft (4) through the slope surface and scoops the capsule to the top of the auxiliary pressure plate (5).

8. The waste rejection device for a capsule filling machine according to claim 1, characterized in that, The inner side of the inclined material frame (2) is also provided with a separator plate (12) for separating capsules.

9. The waste rejection device for a capsule filling machine according to claim 1, characterized in that, A DC motor (13) and a vision module (14) are also provided on the outside of the inclined material frame (2). The output end of the DC motor (13) is fixedly connected to one end of the main guide roller shaft (4). The vision module (14) is connected to the controller on the outside of the filling machine body (1) through a network cable.

10. The waste rejection device for a capsule filling machine according to claim 3, characterized in that, The empty bladder removal unit (76) includes an air pump (761), an air duct (762), and an air blowing pipe (763). The air pump (761) is installed on the top of the filling machine body (1). The air duct (762) is installed on the outside of the output end of the air pump (761) and is fixedly connected to the outside of the positioning bracket (71). The air blowing pipe (763) is fixedly connected to the bottom of the air duct (762) and is used for vertical air blowing.

Images