Continuous production type vacuum attenuation method leak detection machine

Abstract

The utility model relates to a continuous production type vacuum attenuation method leak detection machine which comprises a frame assembly, a feeding assembly, a rotary detection assembly, a discharging assembly, a cleaning assembly and a dehumidification assembly. The rotary detection assembly is connected to the middle of the inner side of the frame assembly, the feeding assembly is connected to the left side of the frame assembly, and the discharging assembly is connected to the right side of the frame assembly; the cleaning assembly is connected to the interior of the frame assembly and used for cleaning the rotary detection assembly; the dehumidification assembly is connected to the upper end face of the frame assembly. The frame assembly comprises a frame, a main bottom plate is connected to the frame, and the feeding assembly, the rotary detection assembly, the discharging assembly and the sweeping assembly are all connected to the main bottom plate; the utility model aims to provide the continuous production type vacuum attenuation method leak detection machine to overcome the existing defects, the vacuum attenuation principle is adopted to realize continuous detection, and the full leak detection of a medicine sealing production line is realized.

Description

Technical Field

[0001] The utility model relates to a continuous production type vacuum decay method leak detection machine. Background Art

[0002] With the development of new technologies, various countries have successively issued a number of regulations, policies and guidance documents on the sealing requirements of pharmaceuticals. They all point out that sterile drugs should maintain their integrity throughout the entire shelf life to prevent the invasion of microorganisms.

[0003] Currently, pharmaceutical companies assess the sealability of medicine bottles based on the characteristics of the bottle and the drug. For some melt-sealed, conductive products, high-voltage discharge testing is often used online. However, for some products unsuitable for high-voltage discharge testing, online seal testing is not performed. Alternatively, traditional destructive testing methods are used, primarily the differential pressure color water bath method. This involves placing a sealed bottle in water with a color distinct from that of the drug, applying a negative pressure, and allowing it to sit for a period of time. The bottle is then removed to verify the presence of colored water, allowing for manual verification of drug leakage.

[0004] This method has several drawbacks: Destructive testing can contaminate packaging materials and even the product. Even more concerning is the possibility of minor leaks going undetected, even though they may already be contaminated. It is inefficient, with long testing cycles and complex procedures requiring significant raw materials and labor. Its probabilistic nature significantly impacts color, concentration, and the environment, as well as the complexity of the leak path and manual identification. The testing process is uncontrolled and standards are inconsistent.

[0005] Therefore, a continuous production type vacuum decay method leak detection machine is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the existing defects and provide a continuous production type vacuum decay method leak detection machine, which adopts the vacuum decay principle to realize continuous detection and achieve full leak detection of the drug sealing production line.

[0007] The technical solution to achieve the above object is: a continuous production type vacuum decay method leak detection machine, comprising a frame assembly, a feeding assembly, a rotating detection assembly, a discharging assembly, a cleaning assembly and a dehumidification assembly;

[0008] The rotation detection component is connected to the middle part of the inner side of the frame component, the feeding component is connected to the left side of the frame component, and the discharging component is connected to the right side of the frame component; the cleaning component is connected to the inside of the frame component for cleaning the rotation detection component; the dehumidification component is connected to the upper end face of the frame component.

[0009] Preferably, the frame assembly includes a frame, the frame is connected to the main base plate, the feeding assembly, the rotation detection assembly, the discharging assembly and the cleaning assembly are all connected to the main base plate; the frame is connected to tempered glass all around and on the upper end face; the lower end face of the frame is connected to shock-proof adjustment feet.

[0010] Preferably, the feeding assembly includes a feeding mesh belt, which is arranged on the left side of the frame; a first feeding screw is arranged above the feeding mesh belt, and the left end of the first feeding screw is connected to a first motor; a second feeding screw is also arranged above the feeding mesh belt, and the right end of the second feeding screw is connected to a second motor, and the right end of the first feeding screw is connected to the left end of the second feeding screw;

[0011] The right end of the second feed screw is connected to the first feed star wheel, the right side of the first feed star wheel is connected to the second feed star wheel, and the second feed star wheel is connected to the rotation detection component.

[0012] Preferably, the rotation detection assembly includes a detection platform mounting plate, and the edge of the upper end surface of the detection platform mounting plate is equidistantly connected to multiple detection platforms; a mounting plate is provided above the detection platform mounting plate, and multiple flexible pressing parts are equidistantly slidably connected to the mounting plate; multiple guide limiters are equidistantly connected to the mounting plate, and the upper ends of the flexible pressing parts are slidably connected to the guide limiters; the upper end of each of the flexible pressing parts is connected to a cam follower, and a cam groove is provided on the outer surface of the cylindrical cam, and multiple cam followers are slidably connected to the cam groove;

[0013] The detection platform mounting plate is connected to the rotating shaft.

[0014] Preferably, the rotation detection assembly further comprises a plurality of pressure detection assemblies, the number of which corresponds to the number of detection platforms, and which are equidistantly connected to the lower end surface edge of the detection platform mounting plate;

[0015] The pressure detection assembly includes an equipment mounting part, which is connected to the lower end surface of the detection platform mounting plate. A high vacuum solenoid valve and a pressure transmitter are installed on the equipment mounting part, and the pressure transmitter is connected to the detection platform.

[0016] Preferably, the discharging assembly includes a first discharging star wheel, which is arranged in front of the detection platform mounting plate, and a second discharging star wheel is arranged on the right side of the detection platform mounting plate. The second discharging star wheel is connected to the third discharging star wheel, and the right side of the third discharging star wheel is connected to the qualified product conveying mesh belt; the second discharging star wheel is connected to the unqualified product receiving plate.

[0017] Preferably, the cleaning assembly includes a blower, a support rod and an air outlet nozzle; the blower is connected to the frame, the support rod is connected to the main base plate and is located in front of the inspection table mounting plate, the air outlet nozzle is connected to the support rod, and the air outlet nozzle is connected to the blower.

[0018] Preferably, the dehumidification component includes a dehumidifier, the dehumidifier is connected to the tempered glass on the upper end surface of the frame, and the output port of the dehumidifier is located inside the frame.

[0019] The beneficial effects of the present invention are as follows: This continuous production vacuum decay leak detector is equipped with a frame assembly, a feed assembly, a rotary detection assembly, a discharge assembly, a cleaning assembly, and a dehumidification assembly; the rotary detection assembly is connected to the middle portion of the inner side of the frame assembly, the feed assembly is connected to the left side of the frame assembly, and the discharge assembly is connected to the right side of the frame assembly; the cleaning assembly is connected inside the frame assembly to clean the rotary detection assembly; and the dehumidification assembly is connected to the upper end surface of the frame assembly. This allows for continuous production and maximizes production efficiency. The detection can be performed non-destructively and automatically online, greatly improving leak detection efficiency while preventing damage to the medicine bottles or the medicines inside. It offers the advantage of deterministic detection, allowing the size of product leaks to be determined based on test data. The modular design of the detection mold allows for rapid mold replacement. The structure is compatible with a wide range of medicine bottles, and can simultaneously perform continuous leak detection on 1-100ml vials and 1-20ml ampoules on the same device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric drawing of the utility model continuous production type vacuum decay method leak detection machine;

[0021] Figure 2 This is a top view of the utility model continuous production type vacuum decay method leak detection machine;

[0022] Figure 3 This is a bottom view of the utility model continuous production type vacuum decay method leak detection machine;

[0023] Figure 4 This is a front view of the rotation detection assembly of the utility model;

[0024] Figure 5 It is an axonometric drawing of the rotation detection assembly of the utility model;

[0025] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0026] In the figure: 12, tempered glass; 14, shockproof adjustment foot; 27, frame; 28, main base; 21, first motor; 22, first feed screw; 23, second feed screw; 24, second motor; 31, feed mesh belt; 32, first feed star wheel; 33, second feed star wheel; 41, cam groove; 42, rotating shaft; 43, mounting plate; 44, cylindrical cam; 45, flexible pressing part; 46, inspection Test table; 47. Test table mounting plate; 49. Guide limiter; 50. Cam follower; 71. Equipment mounting part; 72. High vacuum solenoid valve; 73. Pressure transmitter; 61. First discharge star wheel; 63. Second discharge star wheel; 64. Third discharge star wheel; 81. Rejected product receiving tray; 82. Qualified product conveying mesh belt; 51. Blower; 52. Support rod; 53. Air outlet nozzle; 17. Dehumidifier. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1-6 As shown, a continuous production type vacuum decay leak detector includes a frame assembly, a feeding assembly, a rotating detection assembly, a discharging assembly, a cleaning assembly and a dehumidification assembly; the rotating detection assembly is connected to the middle part of the inner side of the frame assembly, the feeding assembly is connected to the left side of the frame assembly, and the discharging assembly is connected to the right side of the frame assembly; the cleaning assembly is connected to the inside of the frame assembly for cleaning the rotating detection assembly; the dehumidification assembly is connected to the upper end face of the frame assembly.

[0030] like Figure 1 As shown, the frame assembly includes a frame 27, which is connected to a main base plate 28. The feed assembly, rotary detection assembly, discharge assembly, and cleaning assembly are all connected to the main base plate 28. Tempered glass 12 is attached to the perimeter and upper end of frame 27. The lower end of frame 27 is connected to shock-absorbing adjustable feet 14. The leak detector frame is also designed with a 304 brushed casing, ensuring a simple and aesthetically pleasing appearance.

[0031] like Figure 2As shown, the feeding assembly includes a feeding mesh belt 31, which is arranged on the left side of the frame 27; a first feeding screw 22 is arranged above the feeding mesh belt 31, and the left end of the first feeding screw 22 is connected to the first motor 21; a second feeding screw 23 is also arranged above the feeding mesh belt 31, and the right end of the second feeding screw 23 is connected to the second motor 24, and the right end of the first feeding screw 22 is connected to the left end of the second feeding screw 23; when the first feeding screw 22 and the second feeding screw 23 are running synchronously, the product is fed normally; when the first feeding screw 22 stops rotating one circle, it is to isolate a certain detection station, and this detection station does not feed or detect. During normal feeding, the first feeding screw 22 and the second feeding screw 23 run synchronously. The right end of the second feeding screw 23 is connected to the first feeding star wheel 32, and the right side of the first feeding star wheel 32 is connected to the second feeding star wheel 33, and the second feeding star wheel 33 is connected to the rotation detection assembly.

[0032] like Figure 4 、 5 As shown in Figures 6 and 7, the rotary detection assembly includes a detection platform mounting plate 47, with multiple detection platforms 46 equidistantly connected to the edge of the upper end surface of the detection platform mounting plate 47. A mounting plate 43 is provided above the detection platform mounting plate 47, with multiple flexible pressing members 45 slidably connected to the mounting plate 43 at equal intervals. Multiple guide limiters 49 are equidistantly connected to the mounting plate 43, and the upper ends of the flexible pressing members 45 are slidably connected within the guide limiters 49. The upper end of each flexible pressing member 45 is connected to a cam follower 50. The outer surface of the cylindrical cam 44 defines a cam groove 41, and the multiple cam followers 50 are slidably connected within the cam groove 41. The detection platform mounting plate 47 is connected to the rotating shaft 42. The detection platform 46 can be customized according to different product specifications to meet the requirements of leak detection for various bottle types.

[0033] Specifically, the rotation detection assembly also includes multiple pressure detection assemblies, corresponding in number to the number of test platforms 46, and equidistantly connected to the lower edge of the test platform mounting plate 47. The pressure detection assembly also includes a device mounting member 71, which is connected to the lower edge of the test platform mounting plate 47. A high-vacuum solenoid valve 72 and a pressure transmitter 73 are mounted on the device mounting member 71, which is connected to the test platform 46. Each connection point is equipped with an elastic sealing gasket, and internal air circuits ensure that the test can be completed quickly.

[0034] like Figure 2 As shown, the discharging assembly includes a first discharging star wheel 61, which is arranged in front of the detection platform mounting plate 47, and a second discharging star wheel 63 is arranged on the right side of the detection platform mounting plate 47. The second discharging star wheel 63 is connected to the third discharging star wheel 64, and the right side of the third discharging star wheel 64 is connected to the qualified product conveying mesh belt 82; the second discharging star wheel 63 is connected to the unqualified product receiving plate 81.

[0035] like Figure 1 As shown, the cleaning assembly includes a blower 51, a support rod 52, and an air outlet nozzle 53. The blower 51 is connected to the frame 27, and the support rod 52 is connected to the main base plate 28. It is located in front of the test platform mounting plate 47. The air outlet nozzle 53 is connected to the support rod 52 and is connected to the blower 51. The air outlet nozzle 53 can be used to clean a small amount of residual liquid and particles on the test platform 46; the cleaning terminal is conducive to absorbing liquid and particles.

[0036] like Figure 1 As shown, the dehumidification assembly includes a dehumidifier 17, which is connected to the tempered glass 12 on the upper end surface of the frame 27. The output port of the dehumidifier 17 is located inside the frame 27. The dehumidifier 17 maintains a dry environment inside the device, minimizing the impact of ambient humidity on the performance of the vacuum decay leak detector.

[0037] Specifically, the feed mesh belt 31 drives the product to move, and at the same time the first motor 21 drives the first feed screw 22 to rotate, and the second motor 24 drives the second feed screw 23 to rotate. The first feed screw 22 and the second feed screw 23 rotate synchronously to pull the product apart at a uniform distance and transition it to the first feed star wheel 32; the first feed star wheel 32 transitions the product to the second feed star wheel 33 by rotating, and the second feed star wheel 33 transitions the product to the inspection table 46 of the inspection table mounting plate 47 by rotating. The rotation of the rotating shaft 42 drives the detection table mounting plate 47 to rotate, and multiple products are placed on the detection table 46 one after another; at the same time, as the detection table mounting plate 47 rotates, the flexible pressing part 45 is connected to the cam follower 50 in the cam groove 41 and slides down, and the flexible pressing part 45 covers the product on the detection table 46 downward; the detection table mounting plate 47 continues to rotate, the high vacuum solenoid valve 72 opens, and the pressure transmitter 73 works to detect the internal products; after the detection table mounting plate 47 rotates one circle, the cam follower 50 slides to the upward part of the cam groove 41, driving the flexible pressing part 45 to lift upward, and as the detection table mounting plate 47 continues to rotate, the product is transferred to the first discharge star wheel 61. The product transfers to the first discharge star wheel 61, which transfers it to the second discharge star wheel 63. The second discharge star wheel 63 rotates and delivers the product to the reject product receiving tray 81. The second discharge star wheel 63 delivers the qualified product to the third discharge star wheel 64, which in turn delivers the product to the qualified product conveyor belt 82. The air from the blower 51, through the air nozzles 53, sequentially cleans the test platform 46 on the test platform mounting plate 47. The dehumidifier 17 maintains a dry environment within the equipment.

[0038] This continuous production vacuum decay leak detector enables continuous production, maximizing production efficiency. It performs non-destructive, online, automatic leak detection, significantly improving leak detection efficiency while minimizing damage to the vial or the drug inside. It offers the advantage of deterministic detection, allowing the size of product leaks to be determined based on test data. Its modular mold design allows for rapid mold replacement. Compatible with a wide range of vials, it can simultaneously perform continuous leak testing on 1-100ml vials and 1-20ml ampoules on the same machine.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuous production vacuum decay leak detector, characterized in that: It includes a frame assembly, a feeding assembly, a rotation detection assembly, a discharging assembly, a cleaning assembly and a dehumidification assembly; The rotation detection component is connected to the middle part of the inner side of the frame component, the feeding component is connected to the left side of the frame component, and the discharging component is connected to the right side of the frame component; the cleaning component is connected to the inside of the frame component for cleaning the rotation detection component; the dehumidification component is connected to the upper end face of the frame component.

2. The continuous production type vacuum decay leak detector according to claim 1, characterized in that: The frame assembly comprises a frame (27), the frame (27) is connected to a main base plate (28), the feeding assembly, the rotation detection assembly, the discharging assembly and the cleaning assembly are all connected to the main base plate (28); the frame (27) is connected to tempered glass (12) around its periphery and upper end surface; and the lower end surface of the frame (27) is connected to a shockproof adjustment foot (14).

3. The continuous production type vacuum decay leak detector according to claim 2, characterized in that: The feeding assembly includes a feeding mesh belt (31), and the feeding mesh belt (31) is arranged on the left side of the frame (27); a first feeding screw (22) is arranged above the feeding mesh belt (31), and the left end of the first feeding screw (22) is connected to the first motor (21); a second feeding screw (23) is also arranged above the feeding mesh belt (31), the right end of the second feeding screw (23) is connected to the second motor (24), and the right end of the first feeding screw (22) is connected to the left end of the second feeding screw (23); The right end of the second feed screw (23) is connected to the first feed star wheel (32), the right side of the first feed star wheel (32) is connected to the second feed star wheel (33), and the second feed star wheel (33) is connected to the rotation detection component.

4. The continuous production type vacuum decay leak detector according to claim 3, characterized in that: The rotation detection component includes a detection platform mounting plate (47), and the upper end edge of the detection platform mounting plate (47) is equidistantly connected to multiple detection platforms (46); a mounting plate (43) is provided above the detection platform mounting plate (47), and multiple flexible pressing parts (45) are equidistantly connected to the mounting plate (43); multiple guide limiters (49) are equidistantly connected to the mounting plate (43), and the upper ends of the flexible pressing parts (45) are slidably connected to the guide limiters (49); the upper end of each flexible pressing part (45) is connected to a cam follower (50), and a cam groove (41) is provided on the outer surface of the cylindrical cam (44), and the multiple cam followers (50) are all slidably connected to the cam groove (41); The detection platform mounting plate (47) is connected to the rotating shaft (42).

5. The continuous production type vacuum decay leak detector according to claim 4, characterized in that: The rotation detection assembly also includes multiple groups of pressure detection assemblies, the number of which corresponds to the number of detection platforms (46), and which are equidistantly connected to the lower end surface edge of the detection platform mounting plate (47); The pressure detection assembly includes a device mounting member (71), the device mounting member (71) is connected to the lower end surface of the detection platform mounting plate (47), a high vacuum solenoid valve (72) and a pressure transmitter (73) are installed on the device mounting member (71), and the pressure transmitter (73) is connected to the detection platform (46).

6. The continuous production type vacuum decay method leak detector according to claim 4, characterized in that: The discharging assembly comprises a first discharging star wheel (61), the first discharging star wheel (61) is arranged in front of the detection platform mounting plate (47), a second discharging star wheel (63) is arranged on the right side of the detection platform mounting plate (47), the second discharging star wheel (63) is connected to the third discharging star wheel (64), and the right side of the third discharging star wheel (64) is connected to the qualified product conveying mesh belt (82); the second discharging star wheel (63) is connected to the unqualified product receiving plate (81).

7. The continuous production type vacuum decay leak detector according to claim 4, characterized in that: The cleaning assembly comprises a blower (51), a support rod (52) and an air outlet nozzle (53); the blower (51) is connected to the frame (27), the support rod (52) is connected to the main base plate (28) and is located in front of the detection platform mounting plate (47), the support rod (52) is connected to the air outlet nozzle (53), and the air outlet nozzle (53) is connected to the blower (51).

8. The continuous production type vacuum decay leak detector according to claim 2, characterized in that: The dehumidification assembly includes a dehumidifier (17), the dehumidifier (17) is connected to the tempered glass (12) on the upper end surface of the frame (27), and the output port of the dehumidifier (17) is located inside the frame (27).

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