A testing device for deformation-resistant porous hollow capsules

Abstract

This invention relates to a deformation-resistant porous hollow capsule testing device, and to the technical field of hollow capsules. It includes a stationary portable testing box with several inlets at the top for the capsule body and cap to enter. The interior of the portable testing box contains a testing section for detecting the connection stability between the capsule body and cap. The porous structure of the hollow capsule reduces its weight and facilitates drug diffusion, preventing discomfort caused by drug blockage and improving user comfort. The testing section uses centrifugal rotation to detect the tightness and sealing of the connection between the capsule body and cap, offering high testing efficiency and fully automated testing, significantly improving the accuracy of the results. Furthermore, this invention can simultaneously test hollow capsules with contents in different states, greatly enhancing the applicability of the device.

Description

Technical Field

[0001] This invention relates to the technical field of capsules, and in particular to a testing device for deformation-resistant porous hollow capsules. Background Technology

[0002] Empty capsules are containers consisting of a cap and body made from pharmaceutical-grade gelatin and excipients, primarily used for containing solid and liquid medications. They solve the problem of unpleasant taste and swallowing difficulties, truly making medicine palatable. Empty capsules are becoming increasingly popular. Firstly, their elongated shape makes them easy to swallow, making them the most popular dosage form among consumers. Secondly, capsules effectively mask the unpleasant taste and odor of their contents. Therefore, empty capsules are widely used in the pharmaceutical, food, and cosmetic industries.

[0003] Furthermore, the widespread use of empty capsules is constantly driving innovation in their production and improvement.

[0004] Chinese Patent CN119114465A discloses a capsule testing device, including a fixed plate. The fixed plate has an arrangement device, a conveying device, and a testing device. The arrangement device is located at one end of the conveying device, and the testing device is located above the conveying device. The conveying device includes a conveying plate and several conveying grooves spaced apart on the conveying plate. The conveying plate is fixedly connected to the fixed plate and inclined horizontally. An opening penetrating the conveying plate is located below the testing device in each conveying groove. A receiving groove is located on the side of the conveying plate away from the conveying grooves, below the testing device. A rotating device is located below the receiving grooves, allowing the capsules to rotate during testing through the opening. This rotating device enables the capsules on the conveying device to rotate circumferentially, allowing the testing device to inspect the circumferential packaging of the capsules, improving the capsule packaging quality and reducing the defect rate caused by the continuous rotation of the capsules.

[0005] However, the aforementioned capsule testing equipment still has some shortcomings in actual use:

[0006] 1. Existing technologies often detect defects in the appearance of capsules. However, capsules are usually assembled, and existing technologies cannot effectively detect the sealing of capsules, which can lead to leakage after capsule production.

[0007] 2. In addition, when capsules are tested, their contents may be in liquid, solid, or powder states. However, existing technologies often do not differentiate between these states, resulting in all capsules being tested using the same technology and equipment. This leads to inaccurate test results for capsules during the testing process.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing capsule testing equipment. Summary of the Invention

[0009] To address the above problems, this invention provides a testing device for deformation-resistant porous hollow capsules, employing the following technical solution:

[0010] A deformation-resistant porous hollow capsule testing device includes a stationary portable testing box. The upper end of the portable testing box has several inlets for the capsule body and capsule cap to enter. The interior of the portable testing box is equipped with a testing unit for testing the connection stability of the capsule body and capsule cap.

[0011] Preferably, the portable testing box has an opening and closing baffle at the upper feed inlet for opening and closing, and a vertically downward conveying pipe is abutted against the feed inlet of the portable testing box.

[0012] Preferably, the detection unit includes a detection turntable, a working groove, a clamping plate, a scissor assembly, and an electric push rod. The detection turntable is rotatably distributed at equal intervals along the length of the portable detection box, and the detection turntable is distributed correspondingly to the feed inlet. The detection turntable has a working groove, and the clamping plate is symmetrically arranged in the working groove of the detection turntable. The clamping plate limits the connecting hemispherical protrusion on the surface of the capsule. The scissor assembly is connected to the clamping plate. The scissor assembly is rotatably connected to the detection turntable through a connecting frame. The electric push rod is located at the bottom of the detection turntable, and the output end of the electric push rod is connected to one side of the scissor assembly.

[0013] Preferably, the detection turntable is further provided with a control component, the control component including a conveyor belt installed on the detection turntable along the length direction of the working groove, a conveyor wheel provided on the conveyor belt, the conveyor wheel rotating in the working groove on the detection turntable, and a control motor installed on one side of the conveyor wheel.

[0014] Preferably, the control motor is connected to a wire that extends outward and passes through a connecting post. A first conductive ring is connected to the wire, and a second conductive ring is abutted against the outer side of the first conductive ring. The second conductive ring is connected to an external device.

[0015] Preferably, a liquid detection component is also provided on one side of the interior of the portable testing box. The liquid detection component includes an inlet chamber and an outlet chamber, which are located on the portable testing box. A receiving roller is rotatably installed in both the inlet and outlet chambers. A color-changing detection belt that changes speed when it comes into contact with liquid is provided on the receiving roller. Two symmetrically distributed reversing shafts are provided around the detection turntable located on one side of the portable testing box. The two reversing shafts limit the color-changing detection belt, so that the color-changing detection belt is circular and surrounds the outer periphery of the detection turntable.

[0016] Preferably, a limiting ring is installed on the inner wall of the portable testing box via a bracket, and the limiting ring is located at both ends of the color-changing detection belt; the reversing shaft is inclined, so that the color-changing detection belt surrounding the testing turntable is tapered.

[0017] Preferably, a solid detection component is also provided on one side of the interior of the portable testing box. The solid detection component includes a baffle plate arranged around the detection turntable on the other side of the interior of the portable testing box. The baffle plate is inclined. A discharge port is provided on one side of the baffle plate, and a weighing device is provided at the discharge port.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] I. The detection unit of this invention uses centrifugal rotation to detect the tightness and sealing of the connection between the capsule body and the capsule cap of the empty capsule. It has high detection efficiency and is fully automatic, which greatly improves the accuracy of the detection results.

[0020] Second, by combining solid and liquid detection components, this invention can simultaneously detect empty capsules containing contents in different states, greatly improving the applicability of the device. At the same time, when the empty capsules are unqualified, the solid and liquid detection components provide a prominent and conspicuous reminder of the detection results, thus improving the accuracy of the detection results.

[0021] Third, the present invention limits the capsule body of the hollow capsule by using a clamping plate, which significantly improves the stability of the hollow capsule clamping and avoids the hollow capsule from detaching during rotation. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a first-view structural diagram of the hollow capsule of the present invention between the capsule body and the capsule cap.

[0024] Figure 2 This is a schematic diagram of the structure between the capsule body and the capsule cap of the hollow capsule of the present invention from a second perspective.

[0025] Figure 3 This is a third-view structural diagram of the hollow capsule of the present invention between the capsule body and the capsule cap.

[0026] Figure 4 This is a first-view structural schematic diagram of the portable testing box of the present invention.

[0027] Figure 5 This is a second-view structural schematic diagram of the portable testing box of the present invention.

[0028] Figure 6 This is a schematic diagram of the detection unit of the present invention.

[0029] Figure 7 This is a schematic diagram of the speed change mechanism of the present invention.

[0030] Figure 8 This is a schematic diagram of the structure between the control component and the detection unit of the present invention.

[0031] Figure 9 This is a first-view structural schematic diagram of the liquid detection element of the present invention.

[0032] Figure 10 This is a second-view structural schematic diagram of the liquid detection element of the present invention.

[0033] Figure 11 This is a schematic diagram of the solid detection element of the present invention.

[0034] Figure 12 This is a first-view structural diagram of the adjustment knob and the two variable speed cone wheels of the present invention.

[0035] Figure 13 This is a second-view structural diagram illustrating the adjustment between the adjustment knob and the two variable speed cone wheels of the present invention.

[0036] Figure 14 This is a schematic diagram of the structure between the variable speed cones of the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1. Capsule body; 2. Capsule cap; 10. Connecting hemispherical protrusion; 11. Connecting groove; 12. Support frame assembly; 13. Diffusion hemispherical protrusion; 3. Portable testing box; 30. Feed inlet; 4. Testing section; 31. Opening and closing baffle; 32. Conveying pipe; 40. Testing turntable; 41. Working groove; 42. Clamping plate; 43. Scissor fork assembly; 44. Electric push rod; 9. Control component; 90. Conveyor belt; 91. Conveyor wheel; 92. Control motor; 93. Wire; 94. Conductive ring No. 1; 95. Conductive ring No. 2; 50. Connecting column; 51. Adjustment... 5. Shift column; 52. Shift mechanism; 53. Shift steel belt; 54. Drive motor; 55. Shift cone pulley; 56. Cross slide groove; 60. Adjusting knob; 61. Adjusting screw; 62. Lifting block; 64. Vertical plate; 65. Centering gear; 66. Centering rod; 67. Synchronizing plate; 68. Shim; 69. Limiting spring; 70. Liquid detection component; 70. Feed hopper; 71. Discharge hopper; 72. Receiving roller; 73. Color change detection belt; 74. Reversing shaft; 75. Limiting ring; 8. Solid detection component; 80. Baffle; 82. Discharge port; 83. Weighing device. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-14 This application will be described in further detail.

[0039] This application discloses a detection device for a deformation-resistant porous hollow capsule; it is mainly used in the production and preparation process of hollow capsules.

[0040] Existing empty capsules, due to their hollow structure, are prone to deformation, making the contents susceptible to contamination. Furthermore, the capsule shell hinders drug diffusion, which can easily cause drug blockage and discomfort.

[0041] Secondly, existing technologies often detect defects in the appearance of capsules. However, capsules are usually assembled, and existing technologies cannot effectively detect the sealing of capsules, which can lead to leakage after capsule production.

[0042] In addition, when capsules are tested, their contents can be in liquid, solid, or powder states. However, existing technologies often do not differentiate between these states, resulting in all capsules being tested using the same technology and equipment. This leads to inaccurate test results for capsules during the testing process.

[0043] Therefore, this application proposes a deformation-resistant porous hollow capsule testing device to solve the above problems.

[0044] First, this invention proposes a deformation-resistant porous hollow capsule. (See reference...) Figure 1 and Figure 2As shown, it includes a capsule body 1 and a capsule cap 2, the capsule cap 2 being movably connected to the capsule body 1, and the outer wall of the capsule body 1 being attached to the inner wall of the capsule cap 2.

[0045] Hollow capsules reduce weight through their porous structure, facilitate drug diffusion, and improve capsule stability in the external environment. The diffuser hemispherical protrusions increase the speed at which the drug enters the body, thus preventing discomfort caused by drug blockage and improving user comfort.

[0046] Empty capsules are containers primarily used for holding solid and liquid medications. They consist of a capsule cap (2) and a capsule body (1), made from pharmaceutical-grade gelatin and excipients. They solve the problem of unpleasant taste and swallowing difficulties, truly making medicine palatable. Empty capsules are becoming increasingly popular. Firstly, their elongated shape makes them easy to swallow, making them the most popular dosage form among consumers. Secondly, capsules effectively mask the unpleasant taste and odor of their contents. Therefore, empty capsules are widely used in the pharmaceutical, food, and cosmetic industries.

[0047] The empty capsule includes a capsule body 1 and a capsule cap 2. The capsule cap 2 is movably connected to the capsule body 1, and the outer wall of the capsule body 1 fits against the inner wall of the capsule cap 2. Two connecting grooves 11 are provided on the inner wall of the capsule cap 2. A ring of connecting hemispherical protrusions 10 is distributed on the outer end of the capsule body 1. The connecting hemispherical protrusions 10 are correspondingly arranged with the connecting grooves 11 and are engaged with the empty capsule cap 2, so that the capsule cap 2 is firmly connected to the capsule body 1 and is not easy to fall off.

[0048] See Figure 3 As shown, a support frame assembly 12 is provided inside the capsule body 1, and the support frame assembly 12 is integrated with the hollow capsule body 1. The cross-section of the support frame assembly 12 is triangular fork-shaped. Multiple annularly distributed diffuser hemispherical protrusions 13 are provided on the outer wall of the capsule body 1, with each diffuser hemispherical protrusion 13 located on the side of the capsule body 1 away from the capsule cap 2. The diffuser hemispherical protrusions 13 increase the speed at which the drug enters the body, thereby avoiding discomfort caused by drug blockage and improving user comfort.

[0049] Most hollow capsules currently available are non-porous, which hinders drug diffusion, while porous structures are not stable enough in the external environment. Therefore, this application proposes a porous hollow capsule structure. Both the capsule body 1 and the capsule cap 2 include a modified coating, a porous matrix, an antibacterial inner capsule, and a moisture-proof inner membrane. The antibacterial inner capsule is disposed inside the porous matrix, and the moisture-proof inner membrane is disposed inside the antibacterial inner capsule. Furthermore, the porous matrix, antibacterial inner capsule, and moisture-proof inner membrane are all integrated into one unit. The porous structure reduces the weight of the hollow capsule, facilitates drug diffusion, and optimizes the protective measures of the porous structure through the modified coating, antibacterial inner capsule, and moisture-proof inner membrane, thereby improving the stability of the capsule in the external environment.

[0050] Furthermore, the method for preparing the porous structure of porous capsules is as follows:

[0051] 1. Mix the raw materials of capsules, such as pullulan, carrageenan, coagulant, biocatalyst, thickener, and plasticizer, with sodium bicarbonate to make an aqueous solution. Select biodegradable polymers such as polylactic acid (PLA) and polyhydroxyalkanoates (PHAs) as capsule material excipients. Modify the materials through copolymerization, crosslinking, and the addition of nanofillers to improve their toughness and pressure resistance, while reducing their density.

[0052] 2. Stir at below 70℃ for 1-2 hours, then filter, allow to stand and keep warm, degas, dip in gelatin, and perform post-treatment to obtain poreless empty capsules of lulan polysaccharide. Finally, heat at above 110℃, preferably above 130℃, at a heating rate of above 5℃ / s for 10s-1min, followed by rapid cooling to room temperature to obtain capsules containing pores.

[0053] 3. By using coating technology, the hydrophilicity or hydrophobicity of the capsule shell surface can be increased to improve its stability in specific environments.

[0054] Furthermore, in response to the current situation where my country mainly uses ethylene oxide sterilization technology in the production of medical devices and pharmaceuticals, which has high toxicity and poses certain risks and hidden dangers to the health of medical staff and patients with long-term exposure, as well as the problem of residues in the sterilization process, we have independently developed cobalt-60 irradiation sterilization technology.

[0055] 1. Determine the appropriate irradiation dose for the capsules using the Cobalt 60 irradiation sterilization technology, as well as the distribution of the irradiation dose inside the capsules, to ensure that all microorganisms inside the capsules can be effectively killed. The irradiation dose should be able to effectively kill the microorganisms inside the capsules, while avoiding adverse effects on the capsule materials and product quality.

[0056] 2. Research and design a suitable dose control and monitoring system to ensure accurate and controllable dose during irradiation. This includes the calibration of irradiation equipment, real-time monitoring of the irradiation process, and recording and tracing of the irradiation dose.

[0057] 3. Optimize key parameters in the Cobalt-60 irradiation sterilization process, such as irradiation rate, irradiation distance, and irradiation angle, to achieve the best sterilization effect and product quality. Three groups of empty capsules were used. The experimental group underwent Cobalt-60 irradiation sterilization, control group 1 received no sterilization, and control group 2 underwent ethylene oxide sterilization. All other conditions were the same. The experimental results are shown in the table below:

[0058]

[0059] The experimental results show that cobalt-60 irradiation sterilization has excellent effects and leaves no residue.

[0060] To address the risks and potential health hazards to medical staff and patients posed by ethylene oxide sterilization of empty capsules, as well as the issue of residues left during the sterilization process, we have independently developed a cobalt-60 irradiation sterilization technology. This technology involves placing the capsules to be sterilized into a cobalt-60 irradiation device, where they are sterilized using gamma rays or electron radiation. During the irradiation process, a dose control and monitoring system is used to monitor and control the irradiation dose to ensure the effectiveness of sterilization.

[0061] Example 1:

[0062] This application also proposes a testing device for deformation-resistant porous hollow capsules.

[0063] See Figure 4 , Figure 5 and Figure 6 As shown, the deformation-resistant porous hollow capsule testing equipment includes a stationary portable testing box 3. The upper end of the portable testing box 3 is provided with several feed ports 30 for the capsule body 1 and capsule cap 2 to enter. The interior of the portable testing box 3 is provided with a testing unit 4 for testing the stability of the connection between the capsule body 1 and capsule cap 2.

[0064] The portable testing box 3 has an opening and closing baffle 31 at the feed inlet 30 at the top for opening and closing, and a vertically downward conveying pipe 32 is abutted at the feed inlet 30 of the portable testing box 3.

[0065] It should be noted that the portable testing box 3 in this application has three feed ports 30. One feed port 30 is mainly used to detect hollow capsules with solid contents inside; the other feed port 30 is mainly used to detect hollow capsules with liquid contents inside.

[0066] In the specific implementation process, when testing the empty capsule containing liquid contents, the capsule is placed from the portable testing box 3 into the inlet 30 of the liquid contents capsule. Then, the empty capsule containing liquid contents enters the testing turntable 40 inside the portable testing box 3 along the conveying pipe 32.

[0067] After the hollow capsule falls onto the top of the detection turntable 40, it is transported to a designated position and then controlled to rotate centrifugally. Under high-speed rotation, the tightness of the connection between the capsule body 1 and the capsule cap 2 is detected, simulating whether the liquid contents in the entire hollow capsule leak during collisions, falls, and transportation.

[0068] Let's look again. Figure 6 As shown, the portable testing box 3 has an opening and closing baffle 31 at the feed inlet 30 at the top, which is used to open and close the baffle. A vertically downward conveying pipe 32 is attached to the feed inlet 30 of the portable testing box 3. The opening and closing baffle 31 is used to block the feed inlet 30 at the top of the portable testing box 3 to prevent external dust and debris from falling into the portable testing box 3 and affecting the testing of the empty capsules.

[0069] Reference Figure 7 and Figure 8 The diagram shown is a schematic diagram of the structure for testing empty capsules in this application; specifically, the testing unit 4 includes a testing turntable 40, a working groove 41, a clamping plate 42, a scissor assembly 43, and an electric push rod 44.

[0070] The detection turntable 40 is equidistantly distributed inside the portable detection box 3 along its length direction, and the detection turntable 40 is distributed corresponding to the feed port 30. The detection turntable 40 is provided with a working groove 41, and a clamping plate 42 is symmetrically arranged in the working groove 41 of the detection turntable 40. A scissor assembly 43 is connected to the clamping plate 42. An electric push rod 44 is set at the bottom of the detection turntable 40, and the output end of the electric push rod 44 is connected to one side of the scissor assembly 43.

[0071] It should be noted that one end of each of the two scissor assemblies 43 on the clamping plate 42 is hinged to one side of the clamping plate 42, and the other end of the scissor assemblies 43 is slidably disposed on the other side of the clamping plate 42. The purpose of this is to ensure the normal opening and closing of the scissor assemblies 43 and to control the movement of the clamping plate 42.

[0072] A visual detector is installed on the detection turntable 40.

[0073] It should be noted that the visual detector in this application mainly detects the positions of the capsule body 1 and the capsule cap 2 of the hollow capsule, which are existing known structures.

[0074] In the specific implementation process, after the hollow capsule falls onto the detection turntable 40, the vision detector is activated. After the vision detector detects the position of the capsule cap 2, the control component 9 is activated. The control component 9 starts to control the hollow capsule to move along the length direction of the working groove 41 until the capsule cap 2 of the hollow capsule moves to the edge of the detection turntable 40 and the capsule cap 2 of the hollow capsule is suspended in the air. At this time, the electric push rod 44 is activated and the output end of the electric push rod 44 moves. It drives the two clamping plates 42 to move closer to each other through the scissor assembly 43 until the two clamping plates 42 clamp the capsule body 1 of the hollow capsule. At this time, the capsule body 1 of the hollow capsule is clamped and limited, while the capsule cap 2 of the hollow capsule is suspended in mid-air.

[0075] At this point, the preliminary preparations for the hollow capsule inspection are complete. However, it should be noted that the control component 9 of this application can move in both forward and reverse directions. When the visual detector detects that the capsule cap 2 of the hollow capsule is in a certain position, the corresponding control component 9 drives the hollow capsule to move in the corresponding direction, thereby avoiding the situation of flipping the hollow capsule and making it easier for the capsule cap 2 of the hollow capsule to be suspended in the air.

[0076] See Figure 9 and Figure 10 As shown, a liquid detection component 7 is also provided on one side of the interior of the portable testing box 3. The liquid detection component 7 includes a feed chamber 70 and a discharge chamber 71. The feed chamber 70 and the discharge chamber 71 are located on the portable testing box 3, and a receiving roller 72 is rotatably installed in both the feed chamber 70 and the discharge chamber 71. A color-changing detection belt 73 that changes speed when it comes into contact with liquid is provided on the receiving roller 72. Two symmetrically distributed reversing shafts 74 are provided on the periphery of the detection turntable 40 located on one side inside the portable testing box 3. The two reversing shafts 74 limit the color-changing detection belt 73, so that the color-changing detection belt 73 is circular and surrounds the periphery of the detection turntable 40.

[0077] The reversing shaft 74 is inclined, which makes the color-changing detection band 73 surrounding the detection turntable 40 conical.

[0078] In the initial state, one end of the color-changing detection belt 73 is wound around the receiving roller 72 of the discharge hopper 71, and the other end of the color-changing detection belt 73 is wound around the receiving roller 72 of the feed hopper 70. The color-changing detection belt 73 is limited by the limiting ring 75 around the detection turntable 40, so that its middle part is exposed outside the detection turntable 40. When the hollow capsule containing liquid contents rotates at high speed, if the capsule cap 2 of the hollow capsule comes off, the liquid contents inside will splash onto the color-changing detection belt 73, causing a noticeable color change effect. This makes it easy for the operator to observe the color change of the color-changing detection belt 73 and quickly determine the detection result of the hollow capsule.

[0079] Furthermore, the adjustment knob 60 can be slowly rotated to gradually increase the rotation speed of the detection turntable 40, thereby enabling it to detect the sealing performance of the hollow capsule at different speeds, until the centrifugal force that the capsule body 1 and capsule cap 2 can withstand to separate them is detected.

[0080] The above primarily focuses on testing empty capsules containing liquid contents. However, the contents of empty capsules can also be solid particles or powder. Therefore, when testing empty capsules containing solid or powdery contents, the following method is used, as detailed below:

[0081] See Figure 11 As shown, a solid detection component 8 is also provided on one side of the interior of the portable testing box 3. The solid detection component 8 includes a baffle 80 provided around the detection turntable 40 on the other side of the interior of the portable testing box 3. The baffle 80 is distributed at an angle.

[0082] A discharge port 82 is provided on one side of the baffle 80, and a weighing device 83 is provided at the discharge port 82.

[0083] When the detection turntable 40 rotates at high speed, if the capsule body 1 and capsule cap 2 of the hollow capsule separate, the solid particles and powdery materials inside will diffuse outward and be blocked and collected by the baffle 80. The solid particles or powder slide down the baffle 80 onto the weighing device 83; if weighing data appears on the weighing device 83, it indicates that the capsule body 1 and capsule cap 2 of the hollow capsule have separated; if no weighing data appears on the weighing device 83, it indicates that the capsule body 1 and capsule cap 2 of the hollow capsule have not separated.

[0084] Example 2:

[0085] To further improve the accuracy of empty capsule testing, this application also proposes a speed-changing mechanism 5, which can detect the sealing performance of empty capsules by controlling the rotation speed of the detection turntable 40.

[0086] Reference Figure 12 , Figure 13 and Figure 14 The diagram shown is a schematic diagram of the structure for controlling the rotation of the detection turntable 40 in this application. Specifically, a connecting column 50 is installed at the bottom of the detection turntable 40, and an adjusting column 51 is installed on the inner wall of the portable detection box 3. A speed change mechanism 5 is connected between the connecting column 50 and the adjusting column 51. The speed change mechanism 5 includes two sets of corresponding speed change components 52, and a speed change steel belt 53 is sleeved between the two sets of speed change components 52. One set of speed change components 52 is located on the connecting column 50, and the other set is located on the adjusting column 51. The speed change components 52 on the adjusting column 51 are connected to a drive motor 54.

[0087] The drive motor 54 is installed on the inner wall of the portable testing box 3, and the output end of the drive motor 54 is connected to the adjustment column 51.

[0088] Each set of transmission components 52 includes two symmetrically distributed transmission cone wheels 55. The connecting column 50 and the adjusting column 51 are both provided with cross grooves 56. The transmission cone wheels 55 are slidably disposed on the cross grooves 56 of the connecting column 50 and the adjusting column 51.

[0089] In practice, the drive motor 54 is started, and the output of the drive motor 54 controls the adjustment column 51 to rotate. The adjustment column 51 controls the connecting column 50 to rotate through the speed change component 52 and the speed change steel belt 53. During the rotation of the connecting column 50, the detection turntable 40 at its upper end is driven to rotate, causing the detection turntable 40 to rotate. During the rotation of the detection turntable 40, the hollow capsule held at its upper end rotates synchronously, and the liquid contents inside the hollow capsule move towards the capsule cap 2 due to centrifugal force until the liquid contents are all against one end of the capsule cap 2 of the hollow capsule. At this time, the force on the capsule cap 2 is its own centrifugal force and the centrifugal force of its internal contents.

[0090] If no liquid leakage occurs at the connection between the capsule cap 2 and the capsule body 1, it indicates that the connection between the capsule cap 2 and the capsule body 1 is strong; if liquid leakage occurs at the connection between the capsule cap 2 and the capsule body 1, it indicates that the connection between the two is poor.

[0091] See Figure 6 and Figure 12 The diagram shown is a structural schematic of adjusting the rotation speed of the detection turntable 40 in this application. An adjustment knob 60 is rotatably installed on the portable detection box 3. An adjustment plate is provided at the bottom of the adjustment knob 60. An adjustment groove is provided on the adjustment plate. A lifting column is abutted in the adjustment groove. A vertical plate 64 is installed on the lifting column. The vertical plate 64 is slidably disposed on the inner wall of the portable detection box 3 along the height direction. The bottom of the vertical plate 64 is rotatably connected to the variable speed cone wheel 55.

[0092] It should be noted that the feed inlet 30 and the conveying pipe 32 in this invention are relatively large, which can be used to convey hollow capsules of different sizes.

[0093] When performing performance tests on hollow capsules of different sizes, the clamping force between the capsule body 1 and the capsule cap 2 varies due to the different sizes. Therefore, it is necessary to adjust the rotation speed of the test turntable 40 to adjust the centrifugal force of the hollow capsule during the rotation process.

[0094] When dealing with larger hollow capsules, turning the adjustment knob 60 clockwise causes the adjustment plate at the bottom of the knob 60 to press down the lifting column via the adjustment groove. This causes the lifting column and the vertical plate 64 to move downwards synchronously. As the vertical plate 64 moves downwards, it controls the rotation of the centering gear 65. The centering gear 65 then drives the synchronous plate 67 upwards via the centering rod 66, ensuring that the vertical plate 64 and the synchronous plate 67 are on the same straight line and close to each other. At this point, the vertical plate 64 and the synchronous plate 67 control the two variable-speed conical pulleys 55 to move closer together, forcing the radius of the variable-speed steel belt 53 near the drive motor 54 to increase, while the radius of the variable-speed steel belt 53 near the two variable-speed conical pulleys 55 near the detection turntable 40 decreases. This rotation of the drive motor 54 increases the rotation speed of the detection turntable 40, ensuring high-speed rotation and indirectly increasing its centrifugal force. The centrifugal force on the hollow capsule is adjusted by regulating the rotation speed of the detection turntable 40.

[0095] One side of the vertical plate 64 has a sawtooth structure, and a central gear 65 that rotates on the inner wall of the portable testing box 3 is engaged at the sawtooth structure of the vertical plate 64. A central rod 66 is engaged on the other side of the central gear 65. A synchronization plate 67 is installed on the central rod 66. The synchronization plate 67 rotates on the speed-changing cone wheel 55 at the bottom of each set of speed-changing components 52. A shim 68 is abutted on the two speed-changing cone wheels 55 near the testing turntable 40. A limiting compression spring 69 is sleeved on the shim 68 and mounted on the connecting column 50.

[0096] It should be noted that, in its initial state, the limiting spring 69 compresses the two speed-changing cone wheels 55 near the detection turntable 40, causing the two speed-changing cone wheels 55 to compress the speed-changing steel belt 53.

[0097] Therefore, when it is necessary to control the detection turntable 40 to rotate at high speed, the two variable speed cones 55 close to the detection turntable 40 can be made to move away from each other; when it is necessary to control the detection turntable 40 to rotate at low speed, the two variable speed cones 55 close to the detection turntable 40 can be made to move closer to each other.

[0098] During operation: First, when testing the empty capsule containing liquid contents, place it from the portable testing box 3 into the inlet 30 of the liquid contents capsule. Then, the empty capsule containing liquid contents enters the testing turntable 40 inside the portable testing box 3 along the conveying pipe 32.

[0099] Step 2: After the hollow capsule falls to the top of the detection turntable 40, it is transported to the designated position and then controlled to rotate centrifugally. Under high-speed rotation, the tightness of the connection between the capsule body 1 and the capsule cap 2 is detected, simulating whether the liquid contents in the whole hollow capsule will leak during collision, drop and transportation.

[0100] Step 3: Activate the vision detector. After the vision detector detects the position of the capsule cap 2, it activates the control unit 9. The control unit 9 starts to control the hollow capsule to move along the length of the working groove 41 until the capsule cap 2 of the hollow capsule moves to the edge of the detection turntable 40 and the capsule cap 2 of the hollow capsule is suspended in the air. At this time, the electric push rod 44 is activated and the output end of the electric push rod 44 moves. It drives the two clamping plates 42 to move closer to each other through the scissor assembly 43 until the two clamping plates 42 clamp the capsule body 1 of the hollow capsule. At this time, the capsule body 1 of the hollow capsule is clamped and limited, while the capsule cap 2 of the hollow capsule is suspended in the air.

[0101] Step 4: Start the drive motor 54. The output of the drive motor 54 controls the adjustment column 51 to rotate. The adjustment column 51 controls the connecting column 50 to rotate through the speed change component 52 and the speed change steel belt 53. During the rotation of the connecting column 50, it drives the detection turntable 40 at its upper end to rotate. During the rotation of the detection turntable 40, the hollow capsule held at its upper end rotates synchronously. The liquid contents inside the hollow capsule move towards the capsule cap 2 due to centrifugal force until the liquid contents are all against one end of the capsule cap 2 of the hollow capsule. At this time, the force on the capsule cap 2 is its own centrifugal force and the centrifugal force of its internal contents.

[0102] If no liquid leakage occurs at the connection between the capsule cap 2 and the capsule body 1, it indicates that the connection between the capsule cap 2 and the capsule body 1 is strong; if liquid leakage occurs at the connection between the capsule cap 2 and the capsule body 1, it indicates that the connection between the two is poor.

[0103] Step 5: For empty capsules containing liquid, if the capsule cap 2 detaches when the empty capsule containing liquid is rotated at high speed, the liquid contents inside will splash onto the color-changing detection band 73, causing a noticeable color change effect. This makes it easier for the operator to observe the color change of the color-changing detection band 73 and quickly determine the test result of the empty capsule.

[0104] Step 6: For hollow capsules containing solid particles and powdered materials, after the detection turntable 40 rotates at high speed, if the capsule body 1 and capsule cap 2 of the hollow capsule separate, the solid particles and powdered materials inside will diffuse outward and be blocked and collected by the baffle 80. The solid particles or powder slide down the baffle 80 onto the weighing device 83; if weighing data appears on the weighing device 83, it indicates that the capsule body 1 and capsule cap 2 of the hollow capsule have separated; if no weighing data appears on the weighing device 83, it indicates that the capsule body 1 and capsule cap 2 of the hollow capsule have not separated.

[0105] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A testing device for deformation-resistant porous hollow capsules, characterized in that: It includes a stationary portable testing box, the upper end of which has several inlets for capsule bodies and capsule caps to enter, and the interior of the portable testing box is equipped with a testing unit for testing the connection stability of capsule bodies and capsule caps. The portable testing box has an opening and closing baffle at the upper feed inlet for opening and closing, and a vertically downward conveying pipe is abutted at the feed inlet of the portable testing box. The inspection section includes an inspection turntable, a working groove, a clamping plate, a scissor lift assembly, and an electric push rod; The detection turntables are evenly distributed inside the portable detection box along its length, and are distributed correspondingly to the feed inlet. The detection turntables are provided with working grooves, and clamping plates are symmetrically arranged in the working grooves. The clamping plates limit the connection hemispherical protrusions on the surface of the capsule. A scissor assembly is connected to the clamping plate. The scissor assembly is rotatably connected to the detection turntable through a connecting frame. The electric push rod is located at the bottom of the detection turntable, and the output end of the electric push rod is connected to one side of the scissor assembly. The portable testing box also has a liquid detection device on one side inside. The liquid detection device includes an inlet and an outlet. The inlet and outlet are located on the portable testing box, and a receiving roller is rotatably installed in both the inlet and outlet. A color-changing detection belt that changes speed when it comes into contact with liquid is provided on the receiving roller. Two symmetrically distributed reversing shafts are arranged around the detection turntable located on one side inside the portable testing box. The two reversing shafts limit the color-changing detection belt, so that the color-changing detection belt is circular and surrounds the detection turntable. The portable testing box also has a solid testing component on one side of its interior. The solid testing component includes a baffle plate located around the testing turntable on the other side of the portable testing box. The baffle plate is distributed at an angle.

2. The deformation-resistant porous hollow capsule testing device according to claim 1, characterized in that: The detection turntable is also equipped with a control component, which includes a conveyor belt installed on the detection turntable along the length of the working groove. The conveyor belt is equipped with a conveyor wheel, which rotates in the working groove on the detection turntable. A control motor is installed on one side of the conveyor wheel.

3. The deformation-resistant porous hollow capsule testing device according to claim 2, characterized in that: The control motor is connected to a wire that extends outward and passes through a connecting post. A first conductive ring is connected to the wire, and a second conductive ring is abutted against the outside of the first conductive ring. The second conductive ring is connected to an external device.

4. The deformation-resistant porous hollow capsule testing device according to claim 1, characterized in that: Limiting rings are installed on the inner wall of the portable testing box via a bracket, and the limiting rings are located at both ends of the color-changing detection strip; The reversing shaft is inclined, which makes the color-changing detection band surrounding the detection turntable conical.

5. The deformation-resistant porous hollow capsule testing device according to claim 1, characterized in that: A discharge port is provided on one side of the baffle, and a weighing device is installed at the discharge port.

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