A mold temperature measurement system for a fully automated capsule production line

By installing infrared temperature sensors and PLC controllers on the automated capsule production line, automatic monitoring and real-time alarm of mold temperature are achieved, solving the problem of difficulty in online measurement of mold temperature, reducing scrap rate and improving capsule quality.

CN224286127UActive Publication Date: 2026-05-26JIANGSU LEFAN CAPSULE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LEFAN CAPSULE
Filing Date
2025-08-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The lack of online mold temperature measurement methods in existing technologies makes it impossible to quickly trace the source when capsule quality is abnormal. Manual sampling is inefficient and has a high scrap rate, which increases production costs.

Method used

An infrared temperature sensor is installed on the mold pushing track in front of the glue application station via a sensor bracket. Combined with a PLC controller and a touch screen, it realizes automatic monitoring, storage, alarm and trend analysis of mold temperature, achieving 100% online monitoring and real-time alarm.

Benefits of technology

It achieved 100% online monitoring of capsule mold temperature, reduced the scrap rate by 18%, improved capsule processing quality, reduced waste generation, and supported process optimization through historical data analysis, thereby improving capsule wall thickness uniformity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a mold temperature measurement system for a fully automated capsule production line, belonging to the field of pharmaceutical capsule manufacturing technology. It includes an infrared temperature sensor, a PLC controller, and a touchscreen. The infrared temperature sensor is mounted on the mold pushing track before the glue-dipping station via a sensor bracket, with the sensor probe corresponding to the capsule mold after it has reached its position. The PLC controller is connected to the infrared temperature sensor to receive analog temperature signals and convert them into digital temperature values. The touchscreen is communicatively connected to the PLC controller, displaying the current temperature value in real time and storing historical temperature data. The PLC controller is configured to trigger a single temperature sampling after the capsule mold pushing action is completed. This utility model can automatically monitor, store, alarm, and analyze the temperature data of the capsule mold, improving capsule processing quality and reducing waste.
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Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical capsule production technology, and in particular relates to a mold temperature measurement system for a fully automatic capsule production line. Background Technology

[0002] In the capsule production process, the glue dipping process is a key process that affects the quality of capsules. The key factors affecting the quality of glue dipping are the material formula, glue temperature and mold temperature before glue dipping. The material formula and glue temperature can be precisely controlled, but the mold temperature has the following problems due to the lack of online measurement methods: (1) When the capsule quality is abnormal, it is not possible to quickly trace whether it is caused by the fluctuation of mold temperature; (2) Manual sampling is inefficient and has measurement lag; (3) The scrap rate is high and the production cost increases. Utility Model Content

[0003] Technical problem solved: In view of the technical problems existing in the prior art, this utility model provides a mold temperature measurement system for a fully automatic capsule production line, which can realize automatic monitoring, storage, alarm and trend analysis of temperature data of capsule mold, improve capsule processing quality and reduce waste generation.

[0004] Technical solution: The mold temperature measurement system for a fully automated capsule production line described in this utility model includes:

[0005] An infrared temperature sensor is mounted on the mold pushing track in front of the glue dipping station via a sensor bracket, and the probe of the infrared temperature sensor corresponds to the capsule mold after it is in place.

[0006] The PLC controller is connected to the infrared temperature sensor signal and is used to receive the temperature analog signal and convert it into a digital temperature value.

[0007] The touch screen is communicatively connected to the PLC controller, and displays the current temperature value in real time and stores historical temperature data.

[0008] The PLC controller is configured to trigger a single temperature sampling after the capsule mold pushing action is completed.

[0009] Preferably, the infrared temperature sensor is a non-contact sensor, model Keyence FT-H10, and its detection direction is perpendicular to the surface of the capsule mold.

[0010] Preferably, the historical data storage module of the touch screen supports querying temperature records by timestamp and associates them with the capsule production batch number.

[0011] Preferably, the PLC controller is equipped with a temperature threshold alarm module, which triggers an audible and visual alarm on the touch screen when the sampled temperature exceeds a preset range.

[0012] Preferably, the sensor bracket includes:

[0013] Clip-on mounting base;

[0014] A support column is correspondingly connected to the snap-fit ​​fixing seat; a first transmission tooth area is provided on one side of the support column along its height direction;

[0015] A lifting mechanism includes a lifting box body, with lifting positioning parts corresponding to the lifting columns mounted on the upper and lower ends of the lifting box body, and height locking screws connected to the lifting positioning parts; a lifting drive part is provided on one side of one of the lifting positioning parts, and a lifting drive shaft is rotatably connected inside the lifting drive part, with a drive gear meshing with a first transmission gear area mounted on the lifting drive shaft; two sets of horizontal positioning parts are horizontally arranged on the front side of the lifting box body, and a support crossbar is mounted between the two sets of horizontal positioning parts; a second transmission gear area is provided on one side of the support crossbar along the length direction; a horizontal drive part is provided on one side of one of the horizontal positioning parts, and a horizontal drive shaft is rotatably connected inside the horizontal drive part, with a drive gear meshing with the second transmission gear area mounted on the horizontal drive shaft;

[0016] A sensor fixing mechanism is fitted onto one end of a support crossbar.

[0017] Preferably, the snap-fit ​​fixing seat includes a top support plate and a bottom support plate arranged vertically and vertically, one side of the top support plate is fixedly connected to the bottom support plate through a fixed side plate, and a snap-fit ​​groove is formed between the top support plate and the bottom support plate;

[0018] An adjusting screw is threadedly connected to the bottom support plate. The adjusting screw is located in the snap-fit ​​groove and connected to a positioning plate. An adjusting nut is provided at the outer end of the adjusting screw.

[0019] Preferably, a limiting guide groove is provided on one side of the support column along the height direction, corresponding to the height locking screw.

[0020] Preferably, the outer ends of the lifting drive shaft and the horizontal drive shaft are respectively provided with a first drive handle and a second drive handle;

[0021] The lifting drive unit and the horizontal drive unit are respectively equipped with scales corresponding to the lifting drive shaft and the horizontal drive shaft.

[0022] Preferably, the sensor fixing mechanism includes two sets of first shaft clamps correspondingly fitted onto one end of the support crossbar, and a second locking part is provided on one side of the first shaft clamp; a second shaft clamp is connected to one side of the two sets of first shaft clamps, the second shaft clamp is used for fixing and mounting the infrared sensor, and a first locking part is provided on one side of the second shaft clamp.

[0023] Preferably, the supporting crossbar has a positive polymorphic structure; the inner circumference of the first shaft clamp is provided with a toothed ring, and the toothed ring is correspondingly engaged with the circumferential edge of the supporting crossbar.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. This utility model can realize automatic monitoring, storage, alarm and trend analysis of capsule mold temperature data, realize 100% online monitoring of capsule mold temperature, replace manual sampling inspection; it can immediately alarm when the capsule mold temperature is abnormal, reduce the scrap rate by about 18%, improve capsule processing quality and reduce waste generation; through historical data analysis, it can support process optimization and improve the uniformity of the produced capsule wall thickness.

[0026] 2. The infrared temperature sensor is mounted on the mold push track in front of the glue application station via a sensor bracket. The sensor bracket adopts a combined structure, which can be easily fixedly connected to the mold push track. The sensor bracket can adjust the position and rotation of the infrared sensor in the vertical plane of space, thereby achieving precise alignment with the capsule mold. Attached Figure Description

[0027] Figure 1 This is the control flowchart of this utility model;

[0028] Figure 2 This is a front view of the connection structure between the temperature sensor and the temperature sensor bracket of this utility model;

[0029] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the temperature sensor bracket;

[0030] Figure 4 for Figure 3 First-person perspective 3D structural diagram of the temperature sensor bracket;

[0031] Figure 5 for Figure 4 A second-view 3D structural diagram of the temperature sensor bracket.

[0032] Figure 6 for Figure 4 A third-view 3D structural diagram of the temperature sensor bracket.

[0033] Reference numerals: 1. Capsule mold; 2. Infrared temperature sensor; 3. PLC controller; 4. Touch screen; 5. Sensor bracket;

[0034] 6. Snap-fit ​​fixing seat; 61. Fixing side plate; 62. Top support plate; 63. Bottom support plate; 64. Adjusting screw; 65. Positioning clamping plate; 66. Adjusting nut; 67. Snap-fit ​​groove; 68. Bushing; 69. Circumferential locking screw;

[0035] 7. Support column; 71. First transmission gear zone; 72. Limiting guide groove;

[0036] 8. Lifting mechanism; 81. Lifting box body; 82. Lifting drive unit; 83. Lifting drive shaft; 84. First drive handle; 85. First horizontal positioning unit; 86. Second horizontal positioning unit; 87. Horizontal drive unit; 88. Horizontal drive shaft; 89. Second drive handle; 810. Lifting positioning unit; 811. Height locking screw;

[0037] 9. Support crossbar; 91. Second transmission gear zone;

[0038] 10. Sensor fixing mechanism; 101. First shaft clamp; 102. Second shaft clamp; 103. First locking part; 104. Second locking part; 105. Gear ring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix. Figures 1-6 The technical solution of this utility model is clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0040] Example 1: As Figure 1As shown, this utility model discloses a mold temperature measurement system for a fully automated capsule production line, including an infrared temperature sensor 2, a PLC controller 3, and a touch screen 4. The infrared temperature sensor 2 is mounted on the mold pushing track before the glue-dipping station via a sensor bracket 5, and the probe of the infrared temperature sensor 2 corresponds to the capsule mold 1 after it has been positioned. The PLC controller 3 is signal-connected to the infrared temperature sensor 2 to receive the temperature analog signal and convert it into a digital temperature value. The touch screen 4 is communicatively connected to the PLC controller 3 to display the current temperature value in real time and store historical temperature data. The PLC controller 3 is configured to trigger a single temperature sampling after the capsule mold 1 pushing action is completed. This utility model can realize automatic monitoring, storage, alarm, and trend analysis of the temperature data of the capsule mold 1, achieving 100% online monitoring of the temperature of the capsule mold 1, replacing manual sampling inspection; it can immediately alarm when the temperature of the capsule mold 1 is abnormal, reducing the scrap rate by about 18%, improving the capsule processing quality, and reducing waste generation; historical data analysis can support process optimization and improve the uniformity of the produced capsule wall thickness.

[0041] In one specific embodiment, the infrared temperature sensor 2 is a non-contact sensor, model Keyence FT-H10, and its detection direction is perpendicular to the surface of the capsule mold 1, thereby realizing real-time temperature detection of the capsule mold 1.

[0042] In one specific embodiment, the historical data storage module of the touch screen 4 supports querying temperature records by timestamp and associates them with the capsule production batch number for easy traceability.

[0043] In one specific embodiment, the PLC controller 3 is equipped with a temperature threshold alarm module. When the sampled temperature exceeds the preset range, the touch screen 4 is triggered to sound and light an alarm. The alarm is triggered immediately when the temperature of the capsule mold 1 is abnormal, thereby improving the capsule processing quality and reducing the generation of waste products.

[0044] Example 2: This example provides the specific structure of a sensor bracket 5 for the fixed installation of an infrared temperature sensor 2, including a snap-fit ​​fixing seat 6, a support column 7, a lifting mechanism 8, and a sensor fixing mechanism 10. The snap-fit ​​fixing seat 6 includes a top support plate 62 and a bottom support plate 63 arranged vertically. One side of the top support plate 62 is fixedly connected to the bottom support plate 63 through a fixed side plate 61, and a snap-fit ​​groove 67 is formed between the top support plate 62 and the bottom support plate 63. An adjusting screw 64 is threaded onto the bottom support plate 63. The adjusting screw 64 is located in the snap-fit ​​groove 67 and connected to a positioning plate 65. An adjusting nut 66 is provided at the outer end of the adjusting screw 64. During installation, the snap-fit ​​groove 67 of the snap-fit ​​fixing seat 6 is aligned with the side beam of the mold push track and snapped in place. Then, by rotating the adjusting screw 64 with the adjusting nut 66, the positioning plate 65 is driven to move closer to the top support plate 62, thereby achieving the fixed clamping of the sensor bracket 5 and the side beam.

[0045] like Figure 3 As shown, the top support plate 62 has a hollow area so that a bushing 68 is formed in the center, and a circumferential locking screw 69 is threaded to one side of the bushing 68; the support column 7 is rotatably connected to the bushing of the snap-fit ​​fixing seat 6, the support column 7 can rotate freely along the bushing, and the support column 7 and the bushing can be fixedly connected by the circumferential locking screw.

[0046] like Figures 3-6 As shown, a first transmission gear area 71 is provided on one side of the support column 7 along its height direction. The lifting mechanism 8 includes a lifting box body 81, and lifting positioning parts 810 corresponding to the lifting column are respectively provided at the upper and lower ends of the lifting box body 81. A height locking screw 811 is connected to the lifting positioning part 810. A limit guide groove 72 is provided on one side of the support column 7 along the height direction corresponding to the height locking screw 811. The inner end of the height locking screw 811 is slidably connected in the limit guide groove 72. When the position of the lifting box body 81 at the height of the support column 7 is adjusted to the correct position, the position of the lifting box body 81 and the support column 7 is fixed by tightening the height locking screw 811 into the limit guide groove 72. A lifting and positioning part 810 has a lifting drive part 82 on one side, and a lifting drive shaft 83 is rotatably connected inside the lifting drive part 82. A drive gear that meshes with the first transmission gear area 71 is mounted on the lifting drive shaft 83. Two sets of horizontal positioning parts are horizontally arranged on the front side of the lifting box body 81, namely a first horizontal positioning part 85 and a second horizontal positioning part 86. A support crossbar 9 is mounted between the two sets of horizontal positioning parts. A second transmission gear area 91 is arranged along the length direction on one side of the support crossbar 9. A horizontal drive part 87 is arranged on one side of the first horizontal positioning part 85. A horizontal drive shaft 88 is rotatably connected inside the horizontal drive part 87. A drive gear that meshes with the second transmission gear area 91 is mounted on the horizontal drive shaft 88. A first drive handle 84 and a second drive handle 89 are respectively provided through the outer ends of the lifting drive shaft 83 and the horizontal drive shaft 88. A scale is provided at the lifting drive part 82 and the horizontal drive part 87, respectively, corresponding to the lifting drive shaft 83 and the horizontal drive shaft 88. When it is necessary to adjust the height of the lifting box 81 on the support column 7, the first drive handle 84 is rotated forward or backward, thereby adjusting the height of the lifting box 81 on the support column 7 through the engagement of the lifting drive shaft 83 and its drive gear with the first transmission gear area 71 on one side of the lifting column. When it is necessary to adjust the relative position between the support crossbar 9 and the lifting box 81, that is, to adjust the horizontal position of the support crossbar 9, the second drive handle 89 is rotated forward or backward, thereby adjusting the horizontal position of the support crossbar 9 on the support box through the engagement of the horizontal drive shaft 88 and its drive gear with the second transmission gear area 91 on one side of the support crossbar 9.

[0047] like Figure 6As shown, the sensor fixing mechanism 10 is fitted onto one end of the support crossbar 9. The sensor fixing mechanism 10 includes two sets of first shaft clamps 101 fitted onto one end of the support crossbar 9. A second locking part 104 is provided on one side of each first shaft clamp 101. A second shaft clamp 102 is connected to one side of each set of first shaft clamps 101. The second shaft clamp 102 is used for fixing and mounting the infrared sensor, and a first locking part 103 is provided on one side of the second shaft clamp 102. In this embodiment, the lifting positioning part 810, the horizontal driving part 87, the first shaft clamp 101, and the second shaft clamp 102 are all annular structures with an opening. The annular structure has a fixing screw and a fixing nut at the opening. The fixing screw and the fixing nut cooperate to achieve a fixed connection between the lifting positioning part 810, the horizontal driving part 87, the first shaft clamp 101, and the second shaft clamp 102.

[0048] In a preferred embodiment, such as Figure 6 As shown, the supporting crossbar 9 is a positive polygonal deformation structure (e.g. Figure 6 (The structure shown is a regular hexagonal structure); the inner circumference of the first shaft clamp 101 is provided with a toothed ring 105, and the number of teeth of the toothed ring 105 is at least greater than 6, and the first shaft clamp 101 rotates along the support crossbar 9 through the toothed ring 105. When the sensor fixing mechanism 10 is adjusted to the circumferential position of the support crossbar 9, the toothed ring 105 is correspondingly engaged on the circumferential edge of the support crossbar 9. Then, the sensor fixing mechanism 10 can be locked in the circumferential position of the support crossbar 9 by locking the second locking part 104.

[0049] The infrared temperature sensor 2 of this utility model is installed on the mold pushing track in front of the glue dipping station via a sensor bracket 5. The sensor bracket 5 adopts a combined structure, which can be conveniently fixedly connected to the mold pushing track. The sensor bracket 5 can adjust the position and rotation of the infrared sensor in the vertical plane of space, thereby achieving precise alignment with the capsule mold 1.

[0050] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold temperature measurement system for a fully automated capsule production line, characterized in that, include: Infrared temperature sensor (2), the infrared temperature sensor (2) is installed on the mold pushing track in front of the glue dipping station through the sensor bracket (5), and the probe of the infrared temperature sensor (2) corresponds to the capsule mold (1) after it is in place; The PLC controller (3) is connected to the infrared temperature sensor (2) for receiving analog temperature signals and converting them into digital temperature values. Touch screen (4), which is connected to the PLC controller (3) to display the current temperature value in real time and store historical temperature data; The PLC controller (3) is configured to trigger a single temperature sampling after the capsule mold (1) pushes.

2. The mold temperature measurement system for the fully automated capsule production line according to claim 1, characterized in that, The infrared temperature sensor (2) is a non-contact sensor, model Keyence FT-H10, and its detection direction is perpendicular to the surface of the capsule mold (1).

3. The mold temperature measurement system for the fully automated capsule production line according to claim 1, characterized in that, The historical data storage module of the touch screen (4) supports querying temperature records by timestamp and associating them with the capsule production batch number.

4. The mold temperature measurement system for the fully automated capsule production line according to claim 1, characterized in that, The PLC controller (3) is equipped with a temperature threshold alarm module, which triggers an audible and visual alarm on the touch screen (4) when the sampled temperature exceeds the preset range.

5. The mold temperature measurement system for a fully automated capsule production line according to any one of claims 1 to 4, characterized in that, The sensor bracket (5) includes: Snap-fit ​​fixing seat (6); Support column (7), which is correspondingly connected to the snap-fit ​​fixing seat (6); a first transmission tooth area (71) is provided on one side of the support column (7) along its height direction. The lifting mechanism (8) includes a lifting box (81), the upper and lower ends of which are respectively provided with lifting positioning parts (810) fitted on the lifting column, and the lifting positioning parts (810) are connected with height locking screws (811); a lifting drive part (82) is provided on one side of the lifting positioning part (810), and a lifting drive shaft (83) is rotatably connected inside the lifting drive part (82), and the lifting drive shaft (83) is fitted with a gear that is connected to the first transmission gear area ( ). 71) Meshing drive gear; The front side of the lifting box (81) is provided with two sets of horizontal positioning parts, and a support crossbar (9) is fitted between the two sets of horizontal positioning parts. A second transmission gear area (91) is provided on one side of the support crossbar (9) along the length direction. A horizontal drive part (87) is provided on one side of one of the horizontal positioning parts. A horizontal drive shaft (88) is rotatably connected inside the horizontal drive part (87). A drive gear that meshes with the second transmission gear area (91) is fitted on the horizontal drive shaft (88). The sensor fixing mechanism (10) is fitted onto one end of the support crossbar (9).

6. The mold temperature measurement system for the fully automated capsule production line according to claim 5, characterized in that, The snap-fit ​​fixing seat (6) includes a top support plate (62) and a bottom support plate (63) arranged correspondingly on the top and bottom. One side of the top support plate (62) is fixedly connected to the bottom support plate (63) through a fixed side plate (61), and a snap-fit ​​groove (67) is formed between the top support plate (62) and the bottom support plate (63). The bottom support plate (63) is threaded with an adjusting screw (64), the adjusting screw (64) is located in the snap-fit ​​groove (67) and connected to a positioning plate (65), and an adjusting nut (66) is provided at the outer end of the adjusting screw (64).

7. The mold temperature measurement system for the fully automated capsule production line according to claim 5, characterized in that, The support column (7) has a limit guide groove (72) on one side along the height direction corresponding to the height locking screw (811).

8. The mold temperature measurement system for the fully automated capsule production line according to claim 5, characterized in that, The outer ends of the lifting drive shaft (83) and the horizontal drive shaft (88) are respectively provided with a first drive handle (84) and a second drive handle (89). The lifting drive unit (82) and the horizontal drive unit (87) are respectively provided with scales corresponding to the lifting drive shaft (83) and the horizontal drive shaft (88).

9. The mold temperature measurement system for the fully automated capsule production line according to claim 5, characterized in that, The sensor fixing mechanism (10) includes two sets of first shaft clamps (101) correspondingly fitted on one end of the support crossbar (9). A second locking part (104) is provided on one side of the first shaft clamp (101). A second shaft clamp (102) is connected to one side of the two sets of first shaft clamps (101). The second shaft clamp (102) is used for fixing and mounting the infrared sensor, and a first locking part (103) is provided on one side of the second shaft clamp (102).

10. The mold temperature measurement system for a fully automated capsule production line according to claim 9, characterized in that, The supporting crossbar (9) is a positive polymorphic structure; the first shaft clamp (101) has a toothed ring (105) on its inner circumference, and the toothed ring (105) is correspondingly engaged on the circumferential edge of the supporting crossbar (9).