Culture bottle ultrasonic welding line structure and air tightness detection assembly

Abstract

The utility model belongs to the technical field of experimental equipment manufacturing, and particularly relates to a culture bottle ultrasonic welding line structure and an air tightness detection assembly.The culture bottle is formed by welding a first bottle structure and a second bottle structure, the ultrasonic welding line structure comprises a main protrusion and a groove, and the main protrusion is arranged on the face, welded to the second bottle structure, of the first bottle structure; a groove matched with the main protrusion is formed in the face, welded to the first bottle structure, of the second bottle structure, margins are reserved on the two sides of the main protrusion on the face, provided with the main protrusion, of the first bottle structure, and the width of the groove is larger than that of the main protrusion. When the main protrusion is located in the groove, the edges, located on the two sides of the main protrusion, of the face, provided with the main protrusion, of the first bottle structure are located outside the groove. The problems that when a culture bottle is manufactured through welding at present, melt glue overflows and flows to the inner side and the outer side of the culture bottle, so that the melt glue is prone to cracking during sealing detection, the inner side and the outer side of the culture bottle are polluted, and the reject ratio is high are solved.

Description

Technical Field

[0001] This application belongs to the field of experimental equipment manufacturing technology, specifically a structure for an ultrasonic welding line for a culture bottle and an airtightness testing component. Background Technology

[0002] The existing culture bottle welding line is almost a single rib without the protection of an overflow groove. During welding, the molten glue overflows and flows to the inside and outside of the bottle. It is easy to crack during the sealing test, causing contamination of the inside and outside of the bottle and resulting in a high defect rate. Utility Model Content

[0003] The purpose of this application is to address the shortcomings of existing technologies by designing an ultrasonic welding line structure for culture bottles. This structure involves setting a main protrusion and a groove on the two structures welded together to form the culture bottle. The addition of an overflow retainer ensures that the molten adhesive remains in the groove during the welding of the first and second bottle structures, reducing the risk of contamination on the inner and outer sides of the culture bottle. Furthermore, because the molten adhesive does not flow to the outside of the culture bottle, resulting in a stronger weld, it can withstand positive and negative pressure testing. This solves the problem that in current culture bottle manufacturing processes, molten adhesive overflows and flows to the inner and outer sides of the culture bottle, easily causing cracking during sealing tests, leading to contamination on both sides and a high defect rate.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] An ultrasonic welding line structure for culture flasks is disclosed. The culture flasks are formed by welding a first flask structure and a second flask structure. The ultrasonic welding line structure includes a main protrusion and a groove. The main protrusion is provided on the surface of the first flask structure that is welded to the second flask structure. The groove, which mates with the main protrusion, is provided on the surface of the first flask structure where the main protrusion is located. The width of the groove is greater than the width of the main protrusion. When the main protrusion is located within the groove, the edges on both sides of the main protrusion on the surface of the first flask structure where the main protrusion is located are outside the groove.

[0006] Preferably, the second bottle structure is cylindrical, and the groove is located at the lower end of the inner wall of the first bottle structure. The groove is annular and coaxial with the first bottle structure. The first bottle structure is a circular plate, and the radius of the first bottle structure is equal to the inner diameter of the second bottle structure at the location of the groove. The circumferential wall of the first bottle structure is provided with a main protrusion that mates with the groove, and the circumferential wall of the first bottle structure has allowance on both sides of the main protrusion. When the main protrusion is located in the groove, the groove is between the two end faces of the first bottle structure.

[0007] Preferably, the ultrasonic welding line structure further includes an auxiliary protrusion. The depth of the groove is greater than the height of the main protrusion. The auxiliary protrusion, which cooperates with the main protrusion, is disposed inside the groove. The auxiliary protrusion is an annular shape coaxial with the second bottle structure. A gap is reserved between the two inner sidewalls of the groove and the auxiliary protrusion.

[0008] Preferably, the top end of the auxiliary protrusion abuts against the top end of the main protrusion.

[0009] Preferably, the sum of the height of the auxiliary protrusion and the height of the main protrusion is greater than or equal to the depth of the groove.

[0010] Preferably, the cross-section of the auxiliary protrusion is trapezoidal, with the top edge of the trapezoid facing outward from the groove, and the cross-section of the main protrusion is triangular, with the vertex of the triangle facing the central axis of the first bottle structure.

[0011] Preferably, when the main protrusion is located within the groove, the sidewall of the main protrusion perpendicular to the axis of the first bottle structure is in close contact with the sidewall of the auxiliary protrusion perpendicular to the axis of the first bottle structure.

[0012] Preferably, the inner wall of the second bottle structure is provided with an installation limiting block. When the main protrusion is located in the groove and the end face of the first bottle structure is aligned with the installation limiting block, the top end of the main protrusion abuts against the bottom of the groove, and the top end of the auxiliary protrusion abuts against the inner wall of the second bottle structure.

[0013] An airtightness testing component for detecting the above-mentioned culture flask includes an air source component, a pressure display, a pressure sensor, and a cap that mates with the top of the side wall of the culture flask. The pressure sensor is located inside the cap. The air source component is connected to the pressure sensor outside the cap through a pipe that passes through the cap. The pressure sensor is signal-connected to the pressure display, which is located outside the cap.

[0014] Preferably, the gas source assembly includes a two-position five-way solenoid valve and an air pump. The two-position five-way solenoid valve has a first air port and a second air port on one side, and a third air port, a fourth air port, and a fifth air port on the other side. The end of the pipe facing away from the bottle cap is connected to the first interface of a three-way pipe. The second and third interfaces of the three-way pipe are respectively connected to the first air port and the second air port. The third air port and the fifth air port are respectively connected to the air outlet and the air inlet of the air pump. The fourth air port is located between the third air port and the fifth air port.

[0015] When the valve of the two-position five-way solenoid valve closes the second air port, the first air port is connected to the third air port, and the fourth air port is connected to the fifth air port.

[0016] When the valve core of the two-position five-way solenoid valve closes the first air port, the second air port is connected to the fifth air port, and the third air port is connected to the fourth air port.

[0017] Preferably, the bottle cap is provided with an internal thread, and the outer circumferential surface of the opening of the culture bottle is provided with an external thread that mates with the internal thread.

[0018] Compared with the prior art, this application has the following beneficial effects:

[0019] 1. This application designs an ultrasonic welding line structure for culture bottles by setting main protrusions and grooves on the two structures to be welded into culture bottles. It adds an overflow retainer, so that when the first bottle structure and the second bottle structure are welded, the molten glue will remain in the groove, which will not easily cause contamination on the inside and outside of the culture bottle. Since the molten glue does not flow to the outside of the culture bottle and cause loss, the weld is stronger and can withstand positive and negative air pressure tests. This solves the problem that when the culture bottle is manufactured by welding, the molten glue will overflow to the inside and outside of the culture bottle, which makes it easy to crack during the sealing test, causing contamination on the inside and outside of the culture bottle and a high defect rate.

[0020] 2. By setting auxiliary protrusions, this application ensures that the auxiliary protrusions are in close contact with or abut against the main protrusions during welding, and can be melted in the groove at the same time, thus preventing the main protrusions from not contacting the bottom of the groove when they melt.

[0021] 3. This application uses installation limit blocks to facilitate the assembly of the first and second bottle structures during assembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure in which the auxiliary protrusion and the main protrusion adopt the first matching method in this application;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a partial view of the auxiliary protrusion and the main protrusion in this application when they adopt the second matching method;

[0025] Figure 4 A testing component for detecting the airtightness of culture flasks;

[0026] Figure 5 This is a schematic diagram showing a barrel containing pultrusion raw materials placed on the vehicle body in this application;

[0027] Figure 6 This is a structural diagram of the fence in this application.

[0028] The components include: 1. First bottle structure; 2. Second bottle structure; 3. Groove; 4. Main protrusion; 5. Auxiliary protrusion; 6. Mounting limit block; 7. Pressure display; 8. Pressure sensor; 9. Bottle cap; 10. Two-position five-way solenoid valve; 11. Double-acting cylinder; 12. First air outlet; 13. First air inlet; 14. Second air outlet; 15. Second air inlet; and 16. Pipeline. Detailed Implementation

[0029] like Figure 1-6 As shown, an ultrasonic welding line structure for a culture flask is disclosed. The culture flask is formed by welding a first flask structure 1 and a second flask structure 2. The ultrasonic welding line structure includes a main protrusion 4 and a groove 3. The main protrusion 4 is provided on the surface of the first flask structure 1 where it is welded to the second flask structure 2. The groove 3, which mates with the main protrusion 4, is provided on the surface of the first flask structure 1 where the main protrusion 4 is located. The groove 3 has a width greater than the width of the main protrusion 4. When the main protrusion 4 is located within the groove 3, the edges on both sides of the main protrusion 4 on the surface of the first flask structure 1 where the main protrusion 4 is located are outside the groove 3.

[0030] In this embodiment, during manufacturing, the first bottle structure 1 and the second bottle structure 2 are assembled together, ensuring that the main protrusion 4 is located within the groove 3. Then, ultrasonic welding is used. At this time, since the width of the groove 3 is greater than the width of the main protrusion 4, the welding molten adhesive remains within the groove 3, thus preventing contamination of the inner and outer sides of the culture bottle. Furthermore, because the molten adhesive does not flow to the outside of the culture bottle and cause loss, the weld is stronger and can withstand positive and negative air pressure tests. The arrangement on the surface of the first bottle structure 1 where the main protrusion 4 is located, with allowance on both sides of the main protrusion 4 and the edges on both sides of the main protrusion 4 located on the surface of the first bottle structure 1 located outside the groove 3, is designed so that when the main protrusion 4 is located in the groove 3, the inner wall of the first bottle structure 1 can completely cover the groove 3, preventing the molten adhesive from flowing out of the groove 3.

[0031] As a preferred embodiment, the second bottle structure 2 is cylindrical, and the groove 3 is located at the lower end of the inner wall of the first bottle structure 1. The groove 3 is annular and coaxial with the first bottle structure 1. The first bottle structure 1 is a circular plate, and the radius of the first bottle structure 1 is equal to the inner diameter of the second bottle structure 2 at the location where the groove 3 is located. The circumferential wall of the first bottle structure 1 is provided with a main protrusion 4 that mates with the groove 3. The circumferential wall of the first bottle structure 1 has allowance on both sides of the main protrusion 4. When the main protrusion 4 is located in the groove 3, the groove 3 is between the two end faces of the first bottle structure 1.

[0032] With this setup, when the second bottle structure 2 is assembled with the first bottle structure 1, the second bottle structure 2 becomes the body of the culture bottle, while the first bottle structure becomes the bottom of the culture bottle. This makes the culture bottle consist of only two parts, which is convenient for manufacturing.

[0033] As a preferred embodiment, the ultrasonic welding line structure further includes an auxiliary protrusion 5. The depth of the groove 3 is greater than the height of the main protrusion 4. The auxiliary protrusion 5, which mates with the main protrusion 4, is disposed within the groove 3. The auxiliary protrusion 5 is annular and coaxial with the second bottle structure 2. Gaps are reserved between the two inner sidewalls of the groove 3 and the auxiliary protrusion 5. With this configuration, during assembly and welding, the auxiliary protrusion 5 and the main protrusion 4 are melted within the groove 3. The auxiliary protrusion 5 is provided to prevent the main protrusion 4 from failing to contact the bottom of the groove 3 during melting.

[0034] There are two ways in which the auxiliary protrusion 5 and the main protrusion 4 can be matched.

[0035] In one configuration, the top of the auxiliary protrusion 5 abuts against the top of the main protrusion 4. This arrangement ensures that the auxiliary protrusion 5 and the main protrusion 4 are melted together and connected, thereby guaranteeing the airtightness of the culture flask.

[0036] As a preferred embodiment, the sum of the height of the auxiliary protrusion 5 and the height of the main protrusion 4 is greater than or equal to the depth of the groove 3. This arrangement ensures that the auxiliary protrusion 5 and the main protrusion 4, after being melted, can fill the groove 3, thereby guaranteeing airtightness.

[0037] As a preferred embodiment, the auxiliary protrusion 5 has a trapezoidal cross-section, with the top edge of the trapezoid facing outwards from the groove 3, and the main protrusion 4 has a triangular cross-section, with the vertex of the triangle facing the central axis of the first bottle structure 1. This arrangement reduces the amount of auxiliary protrusion 5 and main protrusion 4, accelerating their melting.

[0038] Method 2: When the main protrusion 4 is located within the groove 3, the side wall of the main protrusion 4 perpendicular to the axis of the first bottle structure 1 is in close contact with the side wall of the auxiliary protrusion 5 perpendicular to the axis of the first bottle structure 1. This arrangement increases the contact area between the auxiliary protrusion 5 and the main protrusion 4, allowing them to fuse together after melting.

[0039] As a preferred embodiment, the inner wall of the second bottle structure 2 is provided with a mounting limiting block 6. When the main protrusion 4 is located within the groove 3 and the end face of the first bottle structure 1 is aligned with the mounting limiting block 6, the top end of the main protrusion 4 abuts against the bottom of the groove 3, and the top end of the auxiliary protrusion 5 abuts against the inner wall of the second bottle structure 2. The mounting limiting block 6 is designed to prevent collisions between the first bottle structure 1 and the second bottle structure 2 during assembly. The arrangement of the top end of the main protrusion 4 abutting against the bottom of the groove 3 and the top end of the auxiliary protrusion 5 abutting against the inner wall of the second bottle structure 2 primarily ensures the airtightness of the culture bottle.

[0040] An airtightness testing component for detecting the structure of an ultrasonically welded line in a culture flask includes an air source component, a pressure display 7, a pressure sensor 8, and a cap 9 that mates with the top of the side wall of the culture flask. The pressure sensor 8 is located inside the cap 9. The air source component is connected to the pressure sensor 8 outside the cap 9 via a pipe 16 passing through the cap 9. The pressure sensor 8 is signal-connected to the pressure display 7, which is located outside the cap 9. This configuration allows for the detection of the airtightness of the culture flask. The pressure sensor 8 transmits the sensed pressure signal to the pressure display 7, which displays the signal, allowing the user to check whether the airtightness of the culture flask meets the standard. The cap 9 is designed to cover the mouth of the culture flask during airtightness testing to ensure airtightness isolation between the inside of the culture flask and the outside environment. After testing one culture flask, the cap 9 can be unscrewed and installed on the mouth of another culture flask to continue testing the airtightness of the next culture flask.

[0041] In a preferred embodiment, the gas source assembly includes a two-position five-way solenoid valve 10 and an air pump 11. The two-position five-way solenoid valve 10 has a first air port 12 and a second air port 13 on one side, and a third air port 14, a fourth air port 15, and a fifth air port 17 on the other side. The end of the pipe 16 facing away from the bottle cap 9 is connected to the first interface of a three-way pipe 18. The second and third interfaces of the three-way pipe are respectively connected to the first air port 12 and the second air port 13. The third air port 14 and the fifth air port 17 are respectively connected to the air outlet and air inlet of the air pump 11. The fourth air port 15 is located between the third air port 14 and the fifth air port 17.

[0042] like Figure 5 As shown, when the valve of the two-position five-way solenoid valve 10 closes the second air port 13, the first air port 12 is connected to the third air port 14, and the fourth air port 15 is connected to the fifth air port 17; at this time, the air pump 11 pressurizes the culture bottle to test the airtightness of the culture bottle.

[0043] like Figure 6As shown, when the valve core of the two-position five-way solenoid valve 10 closes the first air port 12, the second air port 13 connects to the fifth air port 17, and the third air port 14 connects to the fourth air port 15. At this time, the airtightness of the culture flask is tested by removing air from the culture flask.

[0044] With this setup, air can be blown into the culture flask using the air pump 11, which is a positive pressure test to check the airtightness of the culture flask; alternatively, the air pump 11 can be used to remove air from the culture flask, which is a negative pressure test to check the airtightness of the culture flask.

[0045] As a preferred embodiment, the bottle cap 9 is provided with an internal thread, and the outer circumferential surface of the opening of the culture flask is provided with an external thread that mates with the internal thread. This facilitates the installation of the bottle cap 9 at the opening of the culture flask.

Claims

1. An ultrasonic welding line structure for a culture flask, wherein the culture flask is formed by welding a first flask structure (1) and a second flask structure (2), characterized in that, The ultrasonic welding line structure includes a main protrusion (4) and a groove (3). The main protrusion (4) is provided on the surface of the first bottle structure (1) that is welded to the second bottle structure (2). The groove (3) that cooperates with the main protrusion (4) is provided on the surface of the second bottle structure (2) that is welded to the first bottle structure (1). There is a margin on both sides of the main protrusion (4) on the surface of the first bottle structure (1). The width of the groove (3) is greater than the width of the main protrusion (4). When the main protrusion (4) is located in the groove (3), the edges on both sides of the main protrusion (4) on the surface of the first bottle structure (1) that is provided are located outside the groove (3).

2. The ultrasonic welding line structure for a culture flask according to claim 1, characterized in that, The second bottle structure (2) is cylindrical, and the groove (3) is located at the lower end of the inner wall of the first bottle structure (1). The groove (3) is an annular ring coaxial with the first bottle structure (1). The first bottle structure (1) is a circular plate. The radius of the first bottle structure (1) is equal to the inner diameter of the groove (3) on the second bottle structure (2). The circumferential wall of the first bottle structure (1) is provided with a main protrusion (4) that cooperates with the groove (3). The circumferential wall of the first bottle structure (1) has a margin on both sides of the main protrusion (4). When the main protrusion (4) is located in the groove (3), the groove (3) is between the two end faces of the first bottle structure (1).

3. The ultrasonic welding line structure for a culture flask according to claim 1, characterized in that, The ultrasonic welding line structure also includes an auxiliary protrusion (5). The depth of the groove (3) is greater than the height of the main protrusion (4). The auxiliary protrusion (5) that cooperates with the main protrusion (4) is provided inside the groove (3). The auxiliary protrusion (5) is an annular shape coaxial with the second bottle structure (2). The two inner sidewalls of the groove (3) are reserved with the auxiliary protrusion (5).

4. The ultrasonic welding line structure for a culture flask according to claim 3, characterized in that, The top of the auxiliary protrusion (5) abuts against the top of the main protrusion (4).

5. The ultrasonic welding line structure for a culture flask according to claim 4, characterized in that, The sum of the height of the auxiliary protrusion (5) and the height of the main protrusion (4) is greater than or equal to the depth of the groove (3).

6. The ultrasonic welding line structure for a culture flask according to claim 5, characterized in that, The auxiliary protrusion (5) has a trapezoidal cross-section, with the top edge of the trapezoid facing outward from the groove (3). The main protrusion (4) has a triangular cross-section, with the vertex of the triangle facing the central axis of the first bottle structure (1).

7. The ultrasonic welding line structure for a culture flask according to claim 3, characterized in that, When the main protrusion (4) is located in the groove (3), the side wall of the main protrusion (4) perpendicular to the axis of the first bottle structure (1) is in close contact with the side wall of the auxiliary protrusion (5) perpendicular to the axis of the first bottle structure (1).

8. The ultrasonic welding line structure for a culture flask according to claim 7, characterized in that, The inner wall of the second bottle structure (2) is provided with a mounting limit block (6). When the main protrusion (4) is located in the groove (3) and the end face of the first bottle structure (1) is aligned with the mounting limit block (6), the top of the main protrusion (4) abuts against the bottom of the groove (3) and the top of the auxiliary protrusion (5) abuts against the inner wall of the second bottle structure (2).

9. A testing component for detecting the airtightness of the ultrasonic welding line structure of a culture flask according to any one of claims 1-8, characterized in that, The system includes a gas source assembly, a pressure display (7), a pressure sensor (8), and a cap (9) that fits with the top of the side wall of the culture flask. The pressure sensor (8) is located inside the cap (9). The gas source assembly is connected to the pressure sensor (8) outside the cap (9) through a pipe (16) that passes through the cap (9). The pressure sensor (8) is signal-connected to the pressure display (7), which is located outside the cap (9).

10. The airtightness detection component according to claim 9, characterized in that, The gas source assembly includes a two-position five-way solenoid valve (10) and an air pump (11). The two-position five-way solenoid valve (10) has a first air port (12) and a second air port (13) on one side, and a third air port (14), a fourth air port (15), and a fifth air port (17) on the other side. The end of the pipe (16) facing away from the bottle cap (9) is connected to the first interface of the three-way pipe (18). The second and third interfaces of the three-way pipe are respectively connected to the first air port (12) and the second air port (13). The third air port (14) and the fifth air port (17) are respectively connected to the air outlet and the air inlet of the air pump (11). The fourth air port (15) is located between the third air port (14) and the fifth air port (17). When the valve of the two-position five-way solenoid valve (10) closes the second air port (13), the first air port (12) is connected to the third air port (14), and the fourth air port (15) is connected to the fifth air port (17). When the valve core of the two-position five-way solenoid valve (10) closes the first air port (12), the second air port (13) is connected to the fifth air port (17), and the third air port (14) is connected to the fourth air port (15).

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