A heat sealing device for a plasma separator port sealing membrane

Abstract

This invention discloses a heat-sealing device for a sealing membrane at the port of a plasma preparation device, belonging to the field of plasma preparation instrument processing technology. It includes a base with a mounting rod fixedly installed on the top, and a top plate fixedly installed on the top of the mounting rod; a pressure equalization mechanism installed at the bottom of the top plate, which guides a limiting ball via a guide rail to apply uniform pressure to a hot-pressing plate; a preheating mechanism disposed within the base for preheating the port of the plasma preparation device; and a control device installed on one side of the base. This invention employs a pressure equalization mechanism that guides the limiting ball via a guide rail to uniformly transmit force to the hot-pressing plate, ensuring balanced force application across all parts of the hot-pressing plate. This effectively improves upon the uneven pressure application problem of traditional devices, reducing instances of insecure sealing, leakage, or overheating damage to the sealing membrane, and improving the pass rate of port heat sealing.

Description

Technical Field

[0001] This invention relates to the field of plasma preparation equipment processing technology, and in particular to a heat-sealing device for the sealing membrane of the port of a plasma preparation device. Background Technology

[0002] As the core equipment for plasma separation and storage, the sealing performance of the plasma preparation unit's ports directly affects the safety and effectiveness of plasma storage. The heat-sealing process of the port sealing membrane is a crucial step in ensuring sealing performance. Existing heat-sealing devices for plasma preparation unit ports commonly suffer from uneven heat pressure during use. Significant pressure deviations occur at different points of contact between the heat-pressing plate and the port, easily leading to insecure sealing, leaks, or localized overheating and damage to the sealing membrane, significantly reducing the sealing pass rate.

[0003] Meanwhile, most existing devices directly heat-seal the ports, lacking a preheating step for the plasma preparation device ports. Due to the large temperature difference between the ports and the sealing membrane, heat transfer is insufficient during heat sealing, which can easily lead to poor adhesion between the sealing membrane and the ports, further affecting the sealing effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a heat sealing device for the sealing film of the plasma preparation device port, which aims to solve the problem of poor adhesion between the sealing film and the port, thus affecting the sealing effect.

[0005] To achieve the above-mentioned objectives, the first aspect of the present invention provides a heat-sealing device for a sealing film at the port of a plasma preparation device, comprising a base, an mounting rod fixedly mounted on the top of the base, and a top plate fixedly mounted on the top of the mounting rod; A pressure equalization mechanism is installed at the bottom of the top plate, and the pressure equalization mechanism guides the limiting ball through the guide rail to apply pressure evenly to the hot press plate; A preheating mechanism is disposed within the base and is used to preheat the port of the plasma preparation device; A control device is mounted on one side of the base.

[0006] Optionally, the pressure equalization mechanism includes a fixed plate, a guide rod, a contact plate, an extension, a mounting cylinder, and a movable rod. The guide rod is fixedly installed at the bottom of the fixed plate, the extension is fixedly installed on the side wall of the contact plate, and the extension is slidably connected to the side wall of the guide rod. The hot press plate is installed inside the contact plate, a ball head is movably connected inside the fixed plate, the mounting cylinder is fixedly installed on the side wall of the ball head, the movable rod is slidably connected inside the mounting cylinder, the guide rail is fixedly installed at the top of the hot press plate, and a limiting ball is fixedly installed at one end of the movable rod and slidably connected inside the guide rail.

[0007] Optionally, the guide rail is arc-shaped, and four guide rails are provided, which are evenly distributed on the top of the hot press plate.

[0008] Optionally, a third spring is fixedly installed inside the mounting cylinder, and the movable rod is fixedly installed at one end of the third spring.

[0009] Optionally, the contact plate has a movable groove, the movable plate is fixedly installed on the side wall of the hot press plate, the movable plate is slidably connected in the movable groove, and a second spring is fixedly installed between one end of the movable plate and the inner wall of the movable groove.

[0010] Optionally, a first electric heating wire is fixedly installed inside the hot press plate near the bottom side.

[0011] Optionally, an electric push rod is fixedly installed inside the top plate, and the fixing plate is fixedly installed on the output end of the electric push rod.

[0012] Optionally, a first spring is fixedly installed between the top of the extension and the bottom of the fixing plate, the first spring being located on the side wall of the guide rod.

[0013] Optionally, the preheating mechanism includes a boss and a second electric heating wire. The boss is fixedly installed on the top of the base, and the top of the boss has a placement hole corresponding to the hot press plate. The second electric heating wire is fixedly installed on the inner wall of the placement hole near the top side.

[0014] Optionally, a movable cavity is provided at the bottom of the placement hole, and a fourth spring is fixedly installed on the inner wall of the movable cavity, with a clamping plate fixedly installed at one end of the fourth spring.

[0015] The beneficial effects of this invention are: 1. The heat-sealing device for the port sealing film of the plasma preparation device of the present invention adopts a pressure equalization mechanism. The guide rail guides the limiting ball to evenly transmit the force to the hot pressure plate, so that the force applied to each part of the hot pressure plate is balanced. This effectively improves the problem of uneven hot pressure application in traditional devices, reduces the situation of local heat sealing failure, leakage or overheating damage of the sealing film, and improves the pass rate of port heat sealing.

[0016] 2. The heat-sealing device for the sealing film of the plasma preparation device port of the present invention preheats the plasma preparation device port by setting a preheating mechanism in the base, which effectively reduces the temperature difference between the port and the hot plate, allowing for more sufficient heat transfer during heat sealing, improving the bonding and fusion effect between the sealing film and the port, and further ensuring the sealing performance of the port.

[0017] 3. The heat-sealing device for the sealing film at the port of the plasma preparation device of the present invention uses a spring to push the clamp to fix the plasma preparation device, which can effectively prevent the preparation device from shifting during the heat sealing process and causing deviation in the heat sealing position, and can also be adapted to plasma preparation devices with different outer diameter specifications, thus improving the applicability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heat-sealing device for the port sealing film of the plasma preparation device of the present invention; Figure 2 This is a schematic diagram of the fixing plate of the heat sealing device for the port sealing film of the plasma preparation device of the present invention; Figure 3 This is a schematic diagram of the pressure equalization mechanism of the heat sealing device for the port sealing film of the plasma preparation device of the present invention; Figure 4 This is a cross-sectional schematic diagram of the contact plate of the heat-sealing device for the port sealing film of the plasma preparation device of the present invention; Figure 5 This is a cross-sectional schematic diagram of the mounting cylinder of the heat-sealing device for the port sealing film of the plasma preparation device of the present invention; Figure 6 This is a cross-sectional schematic diagram of the base of the heat-sealing device for the port sealing film of the plasma preparation device of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Base; 2. Mounting rod; 3. Top plate; 4. Electric push rod; 5. Fixing plate; 6. Control device; 7. Placement hole; 8. Guide rod; 9. First spring; 10. Contact plate; 11. Extension piece; 12. Mounting cylinder; 13. Limiting ball; 14. Guide rail; 15. Hot press plate; 16. Ball head; 17. Movable groove; 18. Movable plate; 19. First electric heating wire; 20. Second spring; 21. Third spring; 22. Movable cavity; 23. Fourth spring; 24. Clamping plate; 25. Second electric heating wire; 26. Movable rod.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Reference Figures 1-6 An embodiment of the present invention provides a heat sealing device for a sealing film at the port of a plasma preparation device, comprising a base 1, an mounting rod 2 fixedly mounted on the top of the base 1, and a top plate 3 fixedly mounted on the top of the mounting rod 2; The pressure equalization mechanism is installed at the bottom of the top plate 3. The pressure equalization mechanism guides the limiting ball 13 to apply pressure evenly to the hot press plate 15 through the guide rail 14. A preheating mechanism is installed inside the base 1 and is used to preheat the port of the plasma preparation device. Control device 6 is installed on one side of base 1.

[0024] Understandably, the mounting rod 2 achieves a fixed connection between the top plate 3 and the base 1, providing stable installation and working support for the pressure equalization mechanism at the top; the pressure equalization mechanism can keep the pressure on each part of the hot plate 15 uniform, which can improve the problem of uneven heat sealing force; the preheating mechanism can preheat the plasma preparation device port before heat sealing, which can improve the heat transfer efficiency and bonding effect during subsequent heat sealing; the control device 6 can realize the adjustment of the working parameters of each electrical component of the device, and can conveniently control key aspects such as heat sealing temperature, pressure and time.

[0025] In some embodiments, such as Figure 2 As shown, the pressure equalization mechanism includes a fixed plate 5, a guide rod 8, a contact plate 10, an extension 11, a mounting cylinder 12, and a movable rod 26. The guide rod 8 is fixedly installed at the bottom of the fixed plate 5, the extension 11 is fixedly installed on the side wall of the contact plate 10, and the extension 11 is slidably connected to the side wall of the guide rod 8. The hot press plate 15 is installed inside the contact plate 10. A ball head 16 is movably connected inside the fixed plate 5. The mounting cylinder 12 is fixedly installed on the side wall of the ball head 16. The movable rod 26 is slidably connected inside the mounting cylinder 12. The guide rail 14 is fixedly installed on the top of the hot press plate 15. A limiting ball 13 is fixedly installed at one end of the movable rod 26 and is slidably connected inside the guide rail 14.

[0026] Understandably, the sliding fit between the guide rod 8 and the extension 11 provides guidance and limitation for the up-and-down movement of the contact plate 10, reducing the offset during the movement of the contact plate 10. The contact plate 10 serves as the mounting carrier for the hot press plate 15, enabling stable installation and movable adjustment of the hot press plate 15. The ball head 16 can rotate flexibly within the fixed plate 5, driving the mounting cylinder 12 to adjust its angle to meet the force adjustment requirements of the hot press plate 15. The mounting cylinder 12 provides sliding space for the movable rod 26, which can drive the limiting ball 13 to slide within the guide rail 14. Through the guiding effect of the guide rail 14, the force can be evenly transmitted to different positions of the hot press plate 15, making the force on the hot press plate 15 more balanced.

[0027] In some embodiments, such as Figure 2 As shown, the guide rail 14 is arc-shaped, and there are four guide rails 14. The four guide rails 14 are evenly distributed on the top of the hot press plate 15. The third spring 21 is fixedly installed inside the mounting cylinder 12, and the movable rod 26 is fixedly installed on one end of the third spring 21.

[0028] Understandably, the arc-shaped guide rail 14 provides a smooth trajectory for the sliding of the limiting ball 13, and the four evenly distributed guide rails 14 allow the force to be evenly input from the four directions of the hot press plate 15, which can further improve the pressure uniformity of the hot press plate 15; the third spring 21 has elastic extension and contraction properties, which can buffer and reset the sliding of the movable rod 26, so that the limiting ball 13 and the guide rail 14 can always maintain a good contact state, and can also be elastically adjusted according to the force of the hot press plate 15 to reduce the force deviation caused by rigid contact.

[0029] In one example, a movable groove 17 is provided in the contact plate 10, a movable plate 18 is fixedly installed on the side wall of the hot press plate 15, the movable plate 18 is slidably connected in the movable groove 17, a second spring 20 is fixedly installed between one end of the movable plate 18 and the inner wall of the movable groove 17, and a first electric heating wire 19 is fixedly installed in the hot press plate 15 near the bottom.

[0030] Understandably, the movable groove 17 provides space for the sliding of the movable plate 18 and guides it. The cooperation between the movable plate 18 and the movable groove 17 enables the hot plate 15 to be adjusted slightly within the contact plate 10, allowing the hot plate 15 to better fit the contact angle of the plasma preparation device port. The elastic force of the second spring 20 can provide elastic buffering for the position of the hot plate 15, reducing the rigid impact when the hot plate 15 contacts the port, and also assisting the hot plate 15 in resetting. The first electric heating wire 19 provides a stable heat source for the hot plate 15, enabling the hot plate 15 to reach the temperature required for heat sealing, providing heat for the heat sealing fusion of the sealing film and the plasma preparation device port.

[0031] like Figure 1As shown, an electric push rod 4 is fixedly installed inside the top plate 3, and a fixing plate 5 is fixedly installed at the output end of the electric push rod 4.

[0032] Understandably, the electric push rod 4 can provide stable power for the up and down movement of the fixed plate 5, and can precisely control the downward movement distance of the fixed plate 5, thereby adjusting the hot pressing stroke and pressure of the hot pressing plate 15 on the plasma preparation port, and can adapt to the heat sealing requirements of sealing films of different thicknesses.

[0033] like Figure 2 As shown, a first spring 9 is fixedly installed between the top of the extension 11 and the bottom of the fixing plate 5, and the first spring 9 is located on the side wall of the guide rod 8.

[0034] Understandably, the first spring 9 is sleeved on the outside of the guide rod 8, which can elastically adjust the distance between the extension 11 and the fixed plate 5. When the pressure equalization mechanism moves down for heat sealing, it can play a role in buffering and shock absorption, reducing the impact force during the downward movement. At the same time, it can assist the contact plate 10 in resetting after heat sealing, thereby improving the working stability of the mechanism.

[0035] like Figure 6 As shown, the preheating mechanism includes a boss and a second electric heating wire 25. The boss is fixedly installed on the top of the base 1. The top of the boss has a placement hole 7 corresponding to the hot press plate 15. The second electric heating wire 25 is fixedly installed on the inner wall of the placement hole 7 near the top side.

[0036] Understandably, the placement hole 7 can position the plasma preparer, ensuring that the position of the plasma preparer port corresponds precisely with the hot plate 15, reducing heat sealing position deviation; the second electric heating wire 25 can release heat to preheat the plasma preparer port in the placement hole 7, which can increase the initial temperature of the port, reduce the temperature difference between the port and the hot plate 15, and allow for more sufficient heat transfer during heat sealing, which helps to improve the bonding and fusion effect between the sealing film and the port.

[0037] like Figure 6 As shown, a movable cavity 22 is provided at the bottom of the placement hole 7. A fourth spring 23 is fixedly installed on the inner wall of the movable cavity 22, and a clamping plate 24 is fixedly installed at one end of the fourth spring 23.

[0038] Understandably, the movable cavity 22 provides installation and movement space for the fourth spring 23 and the clamping plate 24. The elastic force of the fourth spring 23 can push the clamping plate 24 to move towards the center of the placement hole 7. Through the cooperation of multiple clamping plates 24, the plasma preparation device placed in the placement hole 7 can be elastically clamped and fixed, which can effectively prevent the preparation device from shifting during the heat sealing process. At the same time, the elastic clamping method can be adapted to plasma preparation devices with different outer diameter specifications, which can improve the applicability of the device.

[0039] In this invention, the electric push rod 4 is model DTZ100, the first electric heating wire 19 and the second electric heating wire 25 are model Cr20Ni80, and the control device 6 is model PLC S7-200. These are all common designs in the field and are common knowledge in the field. Therefore, no specific structural description or corresponding working principle description will be given here.

[0040] In practical application, the plasma preparation device to be heat-sealed is first placed in the placement hole 7 of the base 1. During placement, the fourth spring 23 in the movable cavity 22 pushes the clamping plate 24 to elastically clamp and fix the plasma preparation device. The second electric heating wire 25 of the preheating mechanism is activated by the control device 6 to preheat the port of the plasma preparation device. After preheating, the electric push rod 4 is activated by the control device 6. The electric push rod 4 pushes the fixing plate 5 downward. The pressure equalization mechanism moves downward with the fixing plate 5, and the extension 11 slides downward along the guide rod 8. The first spring 9 is compressed to provide a buffering effect. When the hot pressure plate 15 approaches the port of the plasma preparation device, the distance between the fixing plate 5 and the hot pressure plate 15 is shortened, and the angle of the mounting cylinder 12 is adjusted by... The ball head 16 automatically adjusts its direction, causing the movable rod 26 to slide the limiting ball 13 within the arc-shaped guide rail 14 under the elastic action of the third spring 21, evenly transmitting the force to the four directions of the hot press plate 15, thus achieving uniform pressure on the hot press plate 15. At the same time, the movable plate 18 on the side wall of the hot press plate 15 can slide slightly within the movable groove 17 of the contact plate 10, and the second spring 20 acts as an elastic buffer, allowing the hot press plate 15 to better fit with the port. The first electric heating wire 19 inside the hot press plate 15 releases heat, heat-sealing the sealing film at the port of the plasma preparer. After heat sealing is completed, the electric push rod 4 drives the fixed plate 5 to move upward and reset, and each spring component drives the corresponding structure to reset, allowing the heat-sealed plasma preparer to be removed.

[0041] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A heat sealing apparatus for a port seal membrane of a plasma preparation apparatus, characterized by, Includes a base (1), on the top of which a mounting rod (2) is fixedly installed, and on the top of which a top plate (3) is fixedly installed; A pressure equalization mechanism is installed at the bottom of the top plate (3). The pressure equalization mechanism guides the limiting ball (13) through the guide rail (14) to apply pressure evenly to the hot press plate (15). A preheating mechanism is provided inside the base (1) and is used to preheat the plasma preparation port; Control device (6), which is mounted on one side of base (1).

2. The heat sealing apparatus of the port sealing membrane of a plasma preparation device according to claim 1, characterized in that, The pressure equalization mechanism includes a fixed plate (5), a guide rod (8), a contact plate (10), an extension (11), a mounting cylinder (12), and a movable rod (26). The guide rod (8) is fixedly installed at the bottom of the fixed plate (5), the extension (11) is fixedly installed on the side wall of the contact plate (10), and the extension (11) is slidably connected to the side wall of the guide rod (8). The hot press plate (15) is installed inside the contact plate (10). A ball head (16) is movably connected inside the fixed plate (5). The mounting cylinder (12) is fixedly installed on the side wall of the ball head (16). The movable rod (26) is slidably connected inside the mounting cylinder (12). The guide rail (14) is fixedly installed on the top of the hot press plate (15). The limiting ball (13) is fixedly installed at one end of the movable rod (26), and the limiting ball (13) is slidably connected inside the guide rail (14).

3. The heat sealing apparatus of the port sealing membrane of a plasma preparation device according to claim 2, characterized in that, The guide rail (14) is arc-shaped, and four guide rails (14) are provided, which are evenly distributed on the top of the hot press plate (15).

4. The heat sealing apparatus of the port sealing membrane of a plasma preparation device according to claim 2, characterized in that, A third spring (21) is fixedly installed inside the mounting cylinder (12), and the movable rod (26) is fixedly installed at one end of the third spring (21).

5. The heat sealing apparatus for a port sealing membrane of a plasma preparation device according to claim 2, wherein The contact plate (10) has a movable groove (17) inside. The movable plate (18) is fixedly installed on the side wall of the hot press plate (15). The movable plate (18) is slidably connected in the movable groove (17). A second spring (20) is fixedly installed between one end of the movable plate (18) and the inner wall of the movable groove (17).

6. The heat sealing apparatus of the port sealing membrane of a plasma preparation device according to claim 5, characterized in that, A first electric heating wire (19) is fixedly installed inside the hot press plate (15) near the bottom.

7. The heat-sealing device for the port sealing membrane of the plasma preparation device according to claim 2, characterized in that, An electric push rod (4) is fixedly installed inside the top plate (3), and a fixing plate (5) is fixedly installed at the output end of the electric push rod (4).

8. The heat-sealing device for the port sealing film of the plasma preparation device according to claim 2, characterized in that, A first spring (9) is fixedly installed between the top of the extension (11) and the bottom of the fixing plate (5), and the first spring (9) is located on the side wall of the guide rod (8).

9. The heat-sealing device for the port sealing film of the plasma preparation device according to claim 1, characterized in that, The preheating mechanism includes a boss and a second electric heating wire (25). The boss is fixedly installed on the top of the base (1). The top of the boss has a placement hole (7) corresponding to the hot press plate (15). The second electric heating wire (25) is fixedly installed on the inner wall of the placement hole (7) near the top.

10. The heat-sealing device for the port sealing film of the plasma preparation device according to claim 9, characterized in that, The bottom of the placement hole (7) is provided with a movable cavity (22), and a fourth spring (23) is fixedly installed on the inner wall of the movable cavity (22). A clamping plate (24) is fixedly installed on one end of the fourth spring (23).

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