A hardness measuring device and process applied to the production of calcium carbonate D3 chewable tablets

Abstract

This invention relates to the field of hardness measuring equipment technology, and discloses a hardness measuring device and process for the production of calcium carbonate D3 chewable tablets. The device includes a platform, a detection slot located at the top front of the platform, a cover plate at the opening of the detection slot, an extrusion assembly within the detection slot, and a discharge assembly. This hardness measuring device, through the discharge assembly, moves a moving rod away from a fixed rod, causing a push-pull rod to move. The discharge cylinder moves away from the first cross-section and reaches above the second cross-section. The lowest chewable tablet in the discharge cylinder falls above the second cross-section. Then, the moving rod moves closer to the fixed rod until the chewable tablet above the second cross-section is crushed. This allows for automatic replenishment of the chewable tablets, significantly improving the chewable tablet detection efficiency, accurately controlling the production rhythm, and reducing production risks.

Description

Technical Field

[0001] This invention relates to the field of hardness measuring equipment technology, and in particular to a hardness measuring device and process for the production of calcium carbonate D3 chewable tablets. Background Technology

[0002] In the industrial production of calcium carbonate D3 chewable tablets, tablet hardness is a key quality indicator throughout the entire process of granulation, tableting, and packaging. Its control precision directly determines the product's stability and user experience. The core ingredient of calcium carbonate D3 chewable tablets, calcium carbonate, is an inorganic mineral powder, accounting for 50%-70% of the total tablet weight. It is supplemented with vitamin D3 and taste-improving excipients such as mannitol and aspartame. Its hardness must be strictly limited to the range of 1.5-2.5 kg: when the hardness is below 1.5 kg, the tablets are prone to loosening and powder loss during conveyor belt transport and blister packaging, leading to vitamin D3 exposure and oxidation, and uneven content of the active ingredient; when the hardness is above 2.5 kg, the tablets are too hard, making them difficult for target groups such as children and the elderly to chew, which not only reduces medication adherence but may also affect the dissolution and absorption efficiency of calcium carbonate in the gastrointestinal tract due to insufficient chewing. Therefore, in accordance with the requirements of Good Manufacturing Practice (GMP) for pharmaceuticals, the hardness of calcium carbonate D3 chewable tablets must be sampled and tested frequently during the production process to ensure that the hardness of each batch of products meets the standards.

[0003] Currently, the production of calcium carbonate D3 chewable tablets generally adopts a continuous production line operation mode. Its core production process is characterized by "high speed and stability": the tableting machine, as a key piece of equipment, is typically equipped with 30-40 sets of punches and dies, with a rotation speed of 20-30 rpm. A single machine can produce over 120,000 tablets per shift (8 hours). To match the tableting efficiency, subsequent coating and blister packaging equipment also need to maintain corresponding operating speeds, forming a seamless production chain of "tableting-coating-packaging." In this production mode, hardness testing, as a "critical node" in quality control, must be synchronized with the production line rhythm; otherwise, it will trigger a series of chain problems. However, the tablet hardness measuring equipment widely used in existing technologies, due to its structural limitation of only being able to place one tablet for testing at a time, cannot meet the needs of continuous production. The specific cause-and-effect relationship is as follows:

[0004] According to GMP sampling requirements for oral solid dosage forms, during the production of calcium carbonate D3 chewable tablets, 20-30 tablets must be sampled from the tablet press outlet every 10-15 minutes for hardness testing. The entire process of "measurement-data statistics-result judgment" must be completed before production can continue. The existing single-tablet testing equipment operates on the following steps: "manual tablet removal → manual placement on the testing platform → pressurization → data recording → tablet removal." The testing cycle for a single tablet is 30-40 seconds, and testing a set of 30 tablets takes 900-1200 seconds (15-20 minutes). If the test results are unsatisfactory, resampling and verification are required, extending the total time to 5-8 minutes. During this period, the tablet press continues production at its normal speed, adding 3000 tablets within 5 minutes. If these tablets need rework due to abnormal hardness, not only will additional crushing and regranulation costs be incurred, but the vitamin D3 may also degrade due to repeated heating during rework, leading to the scrapping of the entire batch. This lag, where "the detection speed cannot keep up with the production speed," is essentially the core contradiction between the single-piece detection mode and the continuous production rhythm. Summary of the Invention

[0005] Given the inefficiency of manual placement of chewing tablets in existing technologies, a hardness measuring device and process for the production of calcium carbonate D3 chewing tablets is proposed.

[0006] This application provides a hardness measuring device and process for the production of calcium carbonate D3 chewable tablets, the purpose of which is to achieve automatic replenishment of chewable tablets and improve testing efficiency.

[0007] The technical solution of the present invention is as follows: a hardness measuring device for the production of calcium carbonate D3 chewable tablets, used to test chewable tablets, including a device platform, a testing groove set at the top front of the device platform, a cover plate set at the opening of the testing groove, an extrusion assembly set in the testing groove, and a discharge assembly. The extrusion assembly specifically includes a fixed rod and a moving rod set on both sides of the inner wall of the testing groove, a first section and a second section set at the top of the fixed rod, a third section set at the top of the moving rod, and a fourth section set at the bottom of the moving rod.

[0008] The discharge assembly specifically includes a sliding groove at the top of the first section, a sliding plate inside the sliding groove, an offset groove at the top of the sliding plate, a locking bolt inside the offset groove, a discharge cylinder on the right side of the top of the sliding plate, a side of the discharge cylinder outside the discharge cylinder, and a push-pull rod at the top of the third section.

[0009] The first cross-section is flush with the third cross-section. The moving rod extends above the second cross-section, and the fixed rod extends below the fourth cross-section. The locking bolt passes through the offset groove and is inserted into the bottom wall of the sliding groove. The chewing tablet is located in the discharge cylinder. The distance from the discharge cylinder to the second cross-section is greater than the thickness of the chewing tablet. The push-pull rod passes through the side.

[0010] Furthermore, the discharge assembly also includes an extrusion port opened on the outside of the discharge cylinder, a clamping plate disposed inside the extrusion port, a connecting rod disposed on the side of the clamping plate away from the central axis of the discharge cylinder, a control head disposed on the end of the connecting rod away from the clamping plate, a clamping spring disposed on the outside of the connecting rod, and a relaxation member disposed at the top of the first section.

[0011] The clamping plate is attached to the outside of the chewing piece inside the discharge cylinder, the connecting rod extends out of the extrusion port, one end of the clamping spring is attached to the outside of the discharge cylinder, and the other end is attached to the outside of the control head. The relaxation member extends upward to the moving path of the control head. The side of the relaxation member away from the sliding groove is flush with the side of the control head near the discharge cylinder. The side of the relaxation member away from the sliding groove is provided with an arc-shaped protrusion.

[0012] Furthermore, a rubber resistance ring is provided between the side and the push-pull rod.

[0013] Furthermore, the outer side of the discharge cylinder is provided with an external interface, an external pipe is provided on the outer side of the discharge cylinder, and a limiting boss is provided on the top of the inner side of the external interface.

[0014] Furthermore, the thickness of the clamping spring does not exceed one-quarter of the thickness of the chewing piece, and the distance between the clamping spring and the bottom of the sliding groove is 1.5 times the thickness of the chewing piece.

[0015] Furthermore, a cleaning assembly is provided between the fixed rod and the moving rod. The cleaning assembly specifically includes two sliding slots opened between the first section and the second section, a displacement groove opened on the bottom wall of the sliding groove, a sliding rod set inside the sliding slot, a displacement plate set inside the displacement groove, a push plate set on the sliding rod and the displacement plate near the end of the displacement groove, a reset groove opened on the outside of the sliding rod, a reset spring set inside the reset groove, a positioning bolt inserted at the top of the first section, a cleaning port opened at the top of the second section, and an adsorption assembly set on the outside of the first section.

[0016] The sliding slots are distributed on both sides of the displacement groove. The upper surface of the displacement plate is flush with the bottom wall of the sliding groove. The top of the push plate has a notch corresponding to the sliding plate. The push plate is located above the second section and fits against the edge of the first section. The positioning bolt passes through the reset groove.

[0017] Furthermore, the adsorption assembly specifically includes two mounting slots opened at one end of the movable rod near the fixed rod, a fixed block and a movable block disposed inside the mounting slots, a connecting spring disposed between the fixed block and the movable block, and a fixing bolt disposed at the top of the third section.

[0018] The movable block is located at the opening of the mounting slot, and the movable block has magnetic force, with the fixing bolt penetrating into the fixing block.

[0019] Furthermore, the upper opening of the cleaning port is larger than the lower opening, and the length of the upper opening of the cleaning port is greater than the outer diameter of the chewing tablet.

[0020] Furthermore, the force required to stretch the connecting spring is less than the force required to compress the return spring.

[0021] The invention also provides a hardness measurement process for use in the production of calcium carbonate D3 chewable tablets, comprising the following steps:

[0022] Synchronous sampling: Linked with the tablet press outlet, it automatically captures samples;

[0023] Filling: The chewable tablets are filled into the discharge cylinder;

[0024] Stepped pressure detection: The moving rod applies force in a stepped mode, and the pressure sensor collects data in real time;

[0025] Multi-parameter linkage analysis: The intelligent data processing module simultaneously calculates the average hardness of the two groups of samples to generate a comprehensive quality score.

[0026] The beneficial effects of this invention are:

[0027] 1. By setting up the discharge assembly, initially, the discharge cylinder is located above the sliding groove. Then, the moving rod moves away from the fixed rod and drives the push-pull rod to move. The push-pull rod, through friction, drives the side and the discharge cylinder to move. The discharge cylinder drives the sliding plate to slide within the sliding groove. As the sliding plate moves, the locking bolt slides within the offset groove. When the locking bolt slides to the end of the offset groove, the discharge cylinder leaves the first section and reaches above the second section. The lowest chewing tablet in the discharge cylinder falls above the second section. The moving rod continues to move away from the fixed rod, and the discharge cylinder stops moving. The push-pull rod slides within the side. Then, the moving rod moves closer to the fixed rod, and the push-pull rod simultaneously pushes the side and the discharge cylinder. The sliding plate moves within the sliding groove. As the sliding plate moves, the locking bolt slides within the offset groove. When the locking bolt slides to the end of the offset groove, the discharge cylinder moves away from the second section and reaches above the first section. The chewing tablet at the bottom of the discharge cylinder falls above the first section. Then, the moving rod continues to approach the fixed rod until the chewing tablet above the second section is squeezed and broken, and data is obtained. Afterward, the moving rod moves away from the fixed rod again to place the second chewing tablet. This enables automatic replenishment of chewing tablets, significantly improving chewing tablet detection efficiency, accurately controlling the production rhythm, reducing production risks, and minimizing human intervention, thus reducing the possibility of errors or contamination.

[0028] 2. By setting up a clamping plate, under the pull of the clamping spring, the control head pushes the clamping plate through the connecting rod to clamp the outer side of the lowest chewing piece in the discharge cylinder, preventing the lowest chewing piece from falling out of the discharge cylinder. When the moving rod approaches the fixed rod, the discharge cylinder moves above the sliding groove, and the control head contacts the relaxation part. The control head is pushed away from the discharge cylinder by the arc-shaped protrusion. The control head pulls the clamping plate through the connecting rod, causing it to release the lowest chewing piece in the discharge cylinder, allowing this chewing piece to fall above the sliding groove. The second chewing piece from the bottom moves between the two clamping plates. Then, the moving rod moves away from the fixed rod, the control head separates from the relaxation part, and the clamping plate clamps the second chewing piece from the bottom. After the discharge cylinder moves above the second section, the lowest chewing piece in the lowest discharge cylinder falls out. This avoids the second chewing piece from the bottom partially sliding out of the discharge cylinder when the chewing piece becomes thinner, which would obstruct the movement of the discharge cylinder towards the sliding groove, thus ensuring the stability of the equipment operation.

[0029] 3. By setting up a cleaning component, the moving rod approaches the fixed rod to break up the chewable tablets and continues to move. An adhesive force is generated between the moving block and the push plate. The moving block stretches the connecting spring and moves out of the mounting groove to fit against the surface of the push plate. Then, the moving rod moves away from the fixed rod and away from the push plate. When the connecting spring is stretched to its limit, the moving block begins to drive the push plate to move. The push plate pulls the displacement plate and the displacement plate to move. The sliding rod slides, compressing the reset spring. The displacement plate is lifted off the ground below the discharge cylinder. As the moving rod moves, the push plate pushes the chewable tablet fragments remaining above the second section into the cleaning port. Finally, the fragments fall to the bottom of the detection slot. At this time, the reset spring is compressed to its limit, and the push plate cannot move. The moving rod continues to move, causing the moving block and the push plate to separate. Then, the connecting spring pulls the moving block to reset. The reset spring pushes the sliding rod and the push plate to reset. The displacement plate quickly leaves the discharge cylinder, and the chewable tablets in the discharge cylinder slide down. In this way, the chewable tablet fragments above the second section can be automatically cleaned up, avoiding affecting the accuracy of subsequent detection. Attached Figure Description

[0030] Figure 1 This is a perspective view of the present invention;

[0031] Figure 2 This is a schematic diagram of the fixed rod and the movable rod of the present invention;

[0032] Figure 3 This is a schematic diagram of the fixed rod and the movable rod of the present invention from above;

[0033] Figure 4 This is an anatomical diagram of the material discharge assembly of the present invention;

[0034] Figure 5 This is a disassembly diagram of the components on the discharge cylinder of the present invention;

[0035] Figure 6This is a schematic diagram showing the fixed rod and the movable rod in their separated states according to the present invention;

[0036] Figure 7 This is an anatomical diagram of the cleaning assembly on the fixing rod of the present invention;

[0037] Figure 8 This is a disassembled diagram of the cleaning assembly on the movable pole of the present invention;

[0038] Figure 9 This is a schematic diagram of the external pipe of the present invention;

[0039] Figure 10 This is a front view of the present invention;

[0040] Figure 11 For the present invention Figure 10 Enlarged view of the fixed rod and the movable rod in the middle;

[0041] Figure 12 This is a top view of the fixed rod and the movable rod of the present invention;

[0042] Figure 13 For the present invention Figure 11 Sectional view of AA;

[0043] Figure 14 For the present invention Figure 12 BB section view;

[0044] Figure 15 For the present invention Figure 12 CC section view.

[0045] In the picture:

[0046] 1. Equipment platform; 2. Detection slot; 3. Cover plate; 4. Extrusion assembly; 41. Fixed rod; 42. Moving rod; 43. First section; 44. Second section; 45. Third section; 46. Fourth section; 5. Discharge assembly; 51. Sliding groove; 52. Sliding plate; 53. Offset groove; 54. Locking bolt; 55. Discharge cylinder; 551. External interface; 552. External connecting pipe; 56. Side; 57. Push-pull rod; 58. Extrusion port; 59. 510. Clamping plate; 511. Connecting rod; 512. Control head; 513. Clamping spring; 514. Relaxing component; 6. Cleaning assembly; 61. Sliding slot; 62. Displacement groove; 63. Sliding insert rod; 64. Displacement plate; 65. Push plate; 66. Reset groove; 67. Reset spring; 68. Positioning bolt; 69. Cleaning port; 610. Mounting groove; 611. Fixing block; 612. Moving block; 613. Connecting spring; 614. Fixing bolt. Detailed Implementation

[0047] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] Example 1, referring to Figures 1-15 This is the first embodiment of the present invention, which provides a hardness measuring device for the production of calcium carbonate D3 chewable tablets. The device is used to test the chewable tablets and includes a device platform 1, a test groove 2 disposed at the top front of the device platform 1, a cover plate 3 disposed at the opening of the test groove 2, an extrusion assembly 4 disposed in the test groove 2, and a discharge assembly 5. The extrusion assembly 4 specifically includes a fixed rod 41 and a moving rod 42 disposed on both sides of the inner wall of the test groove 2, a first cross section 43 and a second cross section 44 disposed at the top of the fixed rod 41, a third cross section 45 disposed at the top of the moving rod 42, and a fourth cross section 46 disposed at the bottom of the moving rod 42.

[0049] The material discharge assembly 5 specifically includes a sliding groove 51 opened at the top of the first section 43, a sliding plate 52 disposed inside the sliding groove 51, an offset groove 53 opened at the top of the sliding plate 52, a locking bolt 54 disposed inside the offset groove 53, a material discharge cylinder 55 disposed on the top right side of the sliding plate 52, a side 56 disposed on the outside of the material discharge cylinder 55, and a push-pull rod 57 disposed at the top of the third section 45.

[0050] Specifically, a control panel is located at the rear of the top of the equipment platform 1. The control panel integrates an intelligent data processing module. The cover plate 3 is rotatably connected to the detection groove 2. The fixed rod 41 and the moving rod 42 are concentrically arranged and inserted into the inner wall of the detection groove 2. The fixed rod 41 is fixedly installed, while the moving rod 42 is slidably installed. A hydraulic pushing device is installed at the end of the moving rod 42 away from the fixed rod 41. A pressure sensor is installed on the outer side of the moving rod 42. The first section 43 and the second section 44 are distributed in a stepped manner. The first section 43 is flush with the third section 45. The moving rod 42 extends above the second section 44, and the fixed rod 41 extends below the fourth section 46. The sliding plate 52 is slidably installed in the sliding groove 51. The locking bolt 54 penetrates the offset groove 53 and is inserted into the bottom wall of the sliding groove 51. The locking bolt 54 slides on the offset groove 51. Inside the transfer trough 53, an extension plate is fixedly connected to the outside of the discharge cylinder 55, and the discharge cylinder 55 is fixed by the extension plate and the sliding plate 52. The main body of the discharge cylinder 55 is located on the side of the sliding plate 52, and the chewing tablet is located inside the discharge cylinder 55. When filling the chewing tablet in the discharge cylinder 55, a sterile catheter needs to be used to avoid human contact and reduce the possibility of error or contamination. The distance from the discharge cylinder 55 to the second section 44 is greater than the thickness of the chewing tablet. A pair of symmetrical push-pull rods are provided on the side 56, and both are welded to the outside of the discharge cylinder 55. A pair of symmetrical push-pull rods 57 are provided and are fixed to the top of the third section 45 by bolts. The push-pull rods 57 pass through the side 56. A rubber resistance ring is provided between the side 56 and the push-pull rods 57 to generate stable displacement resistance between the push-pull rods 57 and the side 56, thereby enhancing the control effect of the push-pull rods 57 on the discharge cylinder 55.

[0051] The above equipment is used in conjunction with a tablet press.

[0052] Initially, the discharge cylinder 55 is positioned above the sliding groove 51 when the discharge assembly 5 is set up. Then, the moving rod 42 moves away from the fixed rod 41 and drives the push-pull rod 57 to move. The push-pull rod 57 moves the side 56 and the discharge cylinder 55 through friction. The discharge cylinder 55 causes the sliding plate 52 to slide within the sliding groove 51. As the sliding plate 52 moves, the locking bolt 54 slides within the offset groove 53. When the locking bolt 54 slides to the end of the offset groove 53, the discharge cylinder 55 leaves the first section 43 and reaches above the second section 44. The lowest chewing tablet in the discharge cylinder 55 falls above the second section 44. The moving rod 42 continues to move away from the fixed rod 41, and the discharge cylinder 55 stops moving. The push-pull rod 57 slides within the side 56. Subsequently, the moving rod 42 moves closer to the fixed rod 41, and the push-pull rod 57 simultaneously pushes the side 56. Side 56 and discharge cylinder 55, discharge cylinder 55 drives sliding plate 52 to slide in sliding groove 51. When sliding plate 52 moves, locking bolt 54 slides in offset groove 53. When locking bolt 54 slides to the end of offset groove 53, discharge cylinder 55 leaves second section 44 and reaches above first section 43. Chewing tablet at the bottom of discharge cylinder 55 falls above first section 43. Then moving rod 42 continues to approach fixed rod 41 until the chewing tablet above second section 44 is squeezed and broken to obtain data. After that, moving rod 42 moves away from fixed rod 41 again to place second chewing tablet. In this way, chewing tablet can be automatically replenished, which significantly improves chewing tablet detection efficiency, accurately controls production rhythm, reduces production risk, and reduces human intervention, reducing the possibility of errors or contamination.

[0053] The discharge assembly 5 also includes an extrusion port 58 opened on the outside of the discharge cylinder 55, a clamping plate 59 disposed inside the extrusion port 58, a connecting rod 510 disposed on the side of the clamping plate 59 away from the central axis of the discharge cylinder 55, a control head 511 disposed on the end of the connecting rod 510 away from the clamping plate 59, a clamping spring 512 disposed on the outside of the connecting rod 510, and a relaxation member 513 disposed on the top of the first section 43.

[0054] Specifically, the extrusion ports 58 are distributed on both sides of the discharge cylinder 55. The clamping plate 59 is slidably installed inside the extrusion ports 58 and is attached to the outside of the chewing piece inside the discharge cylinder 55. The connecting rod 510 is fixedly connected to the clamping plate 59 and extends out of the extrusion ports 58. The connecting rod 510 is fixedly connected to the control head 511. One end of the clamping spring 512 is attached to the outside of the discharge cylinder 55 and fixed by adhesive welding. The other end is attached to the outside of the control head 511 and fixed by adhesive welding. The relaxation member 513 is fixed to the top of the first section 43 by bolts. The relaxation member 513 extends upward to the moving path of the control head 511. The side of the relaxation member 513 away from the sliding groove 51 is flush with the side of the control head 511 near the discharge cylinder 55. The side of the relaxation member 513 away from the sliding groove 51 is provided with an arc-shaped protrusion.

[0055] By setting up the clamping plate 59, under the pull of the clamping spring 512, the control head 511 pushes the clamping plate 59 through the connecting rod 510 to clamp the lowermost chewing piece outside the discharge cylinder 55, preventing the lowermost chewing piece from falling out of the discharge cylinder 55. When the moving rod 42 approaches the fixed rod 41, the discharge cylinder 55 moves above the sliding groove 51, and the control head 511 contacts the relaxation member 513. The control head 511 is pushed away from the discharge cylinder 55 by the arc-shaped protrusion. The control head 511 pulls the clamping plate 59 through the connecting rod 510, causing it to release the lowermost chewing piece inside the discharge cylinder 55. The chewing tablet falls above the sliding groove 51. The second chewing tablet moves from bottom to top between the two clamping plates 59. Then, the moving rod 42 moves away from the fixed rod 41, the control head 511 separates from the slack member 513, and the clamping plate 59 clamps the second chewing tablet from bottom to top. After the discharge cylinder 55 moves above the second section 44, the lowest chewing tablet in the lowest discharge cylinder 55 falls down. This avoids the second chewing tablet from bottom to top from partially sliding out of the discharge cylinder 55 when the chewing tablet thickness becomes thinner, which would cause the discharge cylinder 55 to be obstructed when moving towards the sliding groove 51, thus ensuring the stability of the equipment operation.

[0056] Specifically, an external interface 551 is provided on the outside of the discharge cylinder 55, an external pipe 552 is provided on the outside of the discharge cylinder 55, and a limiting boss is provided on the top of the inner side of the external interface 551. The external interface 551 can be an upwardly inclined straight pipe or an upwardly spiral pipe, both of which are used to hold chewing tablets and increase the amount of chewing tablets loaded at one time.

[0057] By setting the outer tube 552, the chewing tablet in the initial outer tube 552 is blocked by the chewing tablet in the discharge cylinder 55. When the chewing tablet in the discharge cylinder 55 falls below the outer interface 551, the chewing tablet in the outer tube 552 moves closer to the discharge cylinder 55. The upper end of the chewing tablet is blocked by the limiting boss. After the chewing tablet flips counterclockwise, it enters the discharge cylinder 55.

[0058] Specifically, the thickness of the clamping spring 512 is no more than one-quarter of the thickness of the chewing tablet, and the distance between the clamping spring 512 and the bottom of the sliding groove 51 is 1.5 times the thickness of the chewing tablet. This allows the device to accept chewing tablets with a certain thickness difference, thus broadening its applicability.

[0059] Example 2, refer to Figures 1-15This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that a cleaning component 6 is provided between the fixed rod 41 and the moving rod 42. The cleaning component 6 specifically includes two sliding slots 61 formed between the first section 43 and the second section 44, a displacement groove 62 formed on the bottom wall of the sliding groove 51, a sliding rod 63 disposed inside the sliding slots 61, a displacement plate 64 disposed inside the displacement groove 62, a push plate 65 disposed on the sliding rod 63 and the displacement plate 64 near one end of the displacement groove 62, a reset groove 66 formed on the outside of the sliding rod 63, a reset spring 67 disposed inside the reset groove 66, a positioning bolt 68 inserted at the top of the first section 43, a cleaning port 69 formed at the top of the second section 44, and an adsorption component disposed on the outside of the first section 43.

[0060] Specifically, sliding slots 61 are distributed on both sides of displacement groove 62, sliding rod 63 slides in sliding slot 61, displacement plate 64 slides in displacement groove 62, the upper surface of displacement plate 64 is flush with the bottom wall of sliding groove 51, sliding rod 63 and displacement plate 64 are both fixedly connected to push plate 65, the top of push plate 65 has a notch corresponding to sliding plate 52, push plate 65 is located above the second section 44 and fits against the edge of the first section 43, push plate 65 is made of magnetic metal, and positioning bolt 68 penetrates into reset groove 66.

[0061] The adsorption assembly specifically includes two mounting slots 610 opened at one end of the movable rod 42 near the fixed rod 41, a fixed block 611 and a movable block 612 disposed inside the mounting slots 610, a connecting spring 613 disposed between the fixed block 611 and the movable block 612, and a fixing bolt 614 disposed at the top of the third section 45.

[0062] Specifically, the fixed block 611 is located at the bottom of the mounting groove 610, the movable block 612 is located at the opening of the mounting groove 610, the movable block 612 slides in the mounting groove 610, the movable block 612 has magnetic force and can attract the push plate 65, and the fixing bolt 614 passes through the fixed block 611; the force required for the connecting spring 613 to stretch is less than the force required for the return spring 67 to compress.

[0063] By setting the cleaning component 6, the moving rod 42 moves closer to the fixed rod 41 to break up the chewable tablets and continues to move. An adsorption force is generated between the moving block 612 and the push plate 65. The moving block 612 stretches the connecting spring 613 and moves out of the mounting groove 610 to fit against the surface of the push plate 65. Then the moving rod 42 moves away from the fixed rod 41 and away from the push plate 65. When the connecting spring 613 is stretched to its limit, the moving block 612 begins to drive the push plate 65 to move. The push plate 65 pulls the displacement plate 64 and the displacement plate 65 moves. The sliding rod 63 slides, compressing the reset spring 67. The displacement plate 64 is lifted off below the discharge cylinder 55. As it moves... As rod 42 moves, pusher plate 65 pushes the remaining chewing tablet fragments above the second section 44 into cleaning port 69. Finally, the fragments fall to the bottom of detection slot 2. At this time, reset spring 67 is compressed to its limit, and pusher plate 65 cannot move. Moving rod 42 continues to move, causing moving block 612 and pusher plate 65 to separate. Then connecting spring 613 pulls moving block 612 to reset. Reset spring 67 pushes sliding insert rod 63 and pusher plate 65 to reset. Displacement plate 64 quickly leaves discharge cylinder 55, and chewing tablets slide down in discharge cylinder 55. In this way, chewing tablet fragments above the second section 44 can be automatically cleaned to avoid affecting the accuracy of subsequent detection.

[0064] Specifically, the upper opening of the cleaning port 69 is larger than the lower opening, and the length of the upper opening of the cleaning port 69 is greater than the outer diameter of the chewing tablet, so that the pusher plate 65 can push the chewing tablet into the cleaning port 69. Even when the chewing tablet does not enter the cleaning port 69 and is distributed on both sides of the cleaning port 69, it does not affect the subsequent placement of the chewing tablet.

[0065] The remaining structure is the same as that in Example 1.

[0066] Example 3, referring to Figure 2 The third embodiment of the present invention provides: a hardness measurement process applied to the production of calcium carbonate D3 chewable tablets, comprising the following steps:

[0067] Synchronous sampling: Linked with the tablet press outlet, 40 tablets are automatically sampled every 15 minutes (divided into two groups of 20 tablets each). The sampling process is carried out through a sterile conduit to avoid human contact.

[0068] Filling: Fill the chewable tablets into the discharge cylinder 55.

[0069] Stepped pressure test: The moving rod 42 applies force in a stepped mode of "pre-compression (0.5kg held for 0.2 seconds) → uniform pressure (rate 10N / s) → rupture detection", and the pressure sensor collects data in real time.

[0070] Multi-parameter linkage analysis: The intelligent data processing module simultaneously calculates the average hardness of the two groups of samples to generate a comprehensive quality score.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hardness measuring device for use in the production of calcium carbonate D3 chewable tablets, used for testing the chewable tablets, comprising a device platform (1), a testing groove (2) disposed at the top front of the device platform (1), a cover plate (3) disposed at the opening of the testing groove (2), and an extrusion assembly (4) disposed within the testing groove (2), characterized in that: It also includes a discharge assembly (5), and the extrusion assembly (4) specifically includes a fixed rod (41) and a moving rod (42) set on both sides of the inner wall of the detection groove (2), a first section (43) and a second section (44) set on the top of the fixed rod (41), a third section (45) set on the top of the moving rod (42), and a fourth section (46) set on the bottom of the moving rod (42). The discharge assembly (5) specifically includes a sliding groove (51) opened at the top of the first section (43), a sliding plate (52) disposed inside the sliding groove (51), an offset groove (53) opened at the top of the sliding plate (52), a locking bolt (54) disposed inside the offset groove (53), a discharge cylinder (55) disposed on the right side of the top of the sliding plate (52), a side (56) disposed on the outside of the discharge cylinder (55), and a push-pull rod (57) disposed at the top of the third section (45). The first section (43) is flush with the third section (45), the moving rod (42) extends above the second section (44), the fixed rod (41) extends below the fourth section (46), the locking bolt (54) passes through the offset groove (53) and is inserted into the bottom wall of the sliding groove (51), the chewing tablet is located in the discharge cylinder (55), the distance from the discharge cylinder (55) to the second section (44) is greater than the thickness of the chewing tablet, and the push-pull rod (57) passes through the side (56). The discharge assembly (5) further includes an extrusion port (58) opened on the outside of the discharge cylinder (55), a clamping plate (59) disposed inside the extrusion port (58), a connecting rod (510) disposed on the side of the clamping plate (59) away from the central axis of the discharge cylinder (55), a control head (511) disposed on the end of the connecting rod (510) away from the clamping plate (59), a clamping spring (512) disposed on the outside of the connecting rod (510), and a relaxation member (513) disposed on the top of the first section (43). The clamping plate (59) is attached to the outside of the chewing piece inside the discharge cylinder (55), the connecting rod (510) extends out of the extrusion port (58), one end of the clamping spring (512) is attached to the outside of the discharge cylinder (55), and the other end is attached to the outside of the control head (511). The relaxation member (513) extends upward to the moving path of the control head (511). The side of the relaxation member (513) away from the sliding groove (51) is flush with the side of the control head (511) close to the discharge cylinder (55). The side of the relaxation member (513) away from the sliding groove (51) is provided with an arc-shaped protrusion.

2. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 1, characterized in that: A rubber resistance ring is provided between the side (56) and the push-pull rod (57).

3. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 1, characterized in that: The discharge cylinder (55) has an outer interface (551) on its outer side, an outer pipe (552) on its outer side, and a limiting boss on the top of the inner side of the outer interface (551).

4. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 1, characterized in that: The thickness of the clamping spring (512) is no more than one-quarter of the thickness of the chewing tablet, and the distance between the clamping spring (512) and the bottom of the sliding groove (51) is 1.5 times the thickness of the chewing tablet.

5. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 1, characterized in that: A cleaning assembly (6) is provided between the fixed rod (41) and the moving rod (42). The cleaning assembly (6) specifically includes two sliding slots (61) opened between the first section (43) and the second section (44), a displacement groove (62) opened on the bottom wall of the sliding groove (51), a sliding insert rod (63) set inside the sliding slot (61), a displacement plate (64) set inside the displacement groove (62), a push plate (65) set on the sliding insert rod (63) and the displacement plate (64) near the end of the displacement groove (62), a reset groove (66) opened on the outside of the sliding insert rod (63), a reset spring (67) set inside the reset groove (66), a positioning bolt (68) inserted on the top of the first section (43), a cleaning port (69) opened on the top of the second section (44), and an adsorption assembly set on the outside of the first section (43). The sliding slots (61) are distributed on both sides of the displacement groove (62). The upper surface of the displacement plate (64) is flush with the bottom wall of the sliding groove (51). The top of the push plate (65) has a notch corresponding to the sliding plate (52). The push plate (65) is located above the second section (44) and fits against the edge of the first section (43). The positioning bolt (68) penetrates into the reset groove (66).

6. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 5, characterized in that: The adsorption assembly specifically includes two mounting slots (610) opened at one end of the movable rod (42) near the fixed rod (41), a fixed block (611) and a movable block (612) set inside the mounting slots (610), a connecting spring (613) set between the fixed block (611) and the movable block (612), and a fixing bolt (614) set at the top of the third section (45). The movable block (612) is located at the opening of the mounting groove (610), the movable block (612) has magnetic force, and the fixing bolt (614) penetrates into the fixing block (611).

7. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 5, characterized in that: The upper opening of the cleaning port (69) is larger than the lower opening, and the length of the upper opening of the cleaning port (69) is greater than the outer diameter of the chewing tablet.

8. The hardness measuring device for the production of calcium carbonate D3 chewable tablets according to claim 6, characterized in that: The force required to stretch the connecting spring (613) is less than the force required to compress the return spring (67).

9. A hardness measurement process applied to the production of calcium carbonate D3 chewable tablets, employing the hardness measurement equipment described in claim 6 for the production of calcium carbonate D3 chewable tablets, characterized in that... Includes the following steps: Synchronous sampling: Linked with the tablet press outlet, it automatically captures samples; Filling: Fill the chewable tablets into the discharge cylinder (55); Step-by-step pressure detection: The moving rod (42) applies force in a step-by-step mode, and the pressure sensor collects data in real time; Multi-parameter linkage analysis: The intelligent data processing module simultaneously calculates the average hardness of the two groups of samples to generate a comprehensive quality score.

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