Device for heat sealing of infusion disinfection cap
By combining the base limit seat and the non-stick heat-resistant rubber pad with the spring rod, the problem of uneven heat sealing of the sterilization cap is solved, realizing automated heat sealing, improving heat sealing efficiency and sealing performance, and reducing the defect rate.
Patent Information
- Application Number
- CN202520300677.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional infusion sterilization cap heat sealing devices are prone to uneven heat sealing during the heat sealing process due to the cap tilting or misalignment, which affects sealing performance and production efficiency, and also results in a high defect rate.
The design employs a base limiting seat, non-stick heat-resistant rubber pad, and spring rod structure to ensure precise positioning and uniform force distribution of the disinfection cap fixture. Combined with an automated cylinder drive, it enables stable operation of the heat sealing device.
This improved heat sealing efficiency and quality, reduced the defect rate, ensured a good seal for the sterilization caps, and improved production efficiency and product quality.
Smart Images

Figure CN223864367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of infusion disinfection cap production, and specifically to a device for heat sealing infusion disinfection caps. Background Technology
[0002] In intravenous infusion therapy, the heat-sealing quality of the infusion sterilization cap is crucial for ensuring the sterility of the infusion system. Traditional heat-sealing devices for infusion sterilization caps have several drawbacks. First, the shape of the outer plastic casing of the infusion sterilization cap is unique, with the cap typically placed in a cylindrical shape. This structure makes it easy for the cap to tilt during placement if it is not completely level. If the cap is not horizontal during heat sealing, the stress and heat distribution in the heat-sealing area will be uneven, resulting in poor heat sealing or even sealing problems, affecting the cap's sealing performance and usability. Second, the overall weight of the sterilization cap and its outer plastic casing is relatively light. During heat pressing, mechanical vibration or other external forces can easily cause the cap and its packaging to shift position. Once this happens, the heat-sealing area cannot be accurately aligned with the heating plate, leading to incomplete or partial sealing, thus affecting the sealing performance. This phenomenon is particularly common in mass production, reducing production efficiency, increasing the defect rate, and causing inconvenience to production. Utility Model Content
[0003] This invention addresses the problems of existing technologies by providing a device for heat-sealing infusion sterilization caps.
[0004] The objective of this utility model can be achieved through the following technical solution: A device for heat sealing infusion disinfection caps includes: a base, a guide post, an upper fixing plate, a cylinder, a guide plate, a heating pressure plate, and a disinfection cap fixture. The guide post is disposed on the base, the upper fixing plate is fixed to the upper end of the guide post, the cylinder is fixed to the upper fixing plate, the guide plate is slidably disposed on the guide post and its upper end is connected to the output end of the cylinder, the heating pressure plate is fixed to the lower end of the guide plate, a limiting seat is provided on the upper end face of the base, the disinfection cap fixture is disposed in the limiting seat and is positioned directly opposite the heating pressure plate, a number of sets of anti-stick heat-resistant rubber pads are spaced apart on the disinfection cap fixture, disinfection cap placement holes are provided in the anti-stick heat-resistant rubber pads, and spring rods are spaced apart on the disinfection cap fixture, the spring rods being located around the anti-stick heat-resistant rubber pads.
[0005] In a further improvement, the anti-stick heat-resistant rubber pad is provided with three sets at intervals, and each set of the anti-stick heat-resistant rubber pad has six sets of evenly distributed spring rods on the outside.
[0006] In a further improvement, the limiting seat includes two sets of horizontal baffles and vertical baffles. The horizontal baffles and vertical baffles are fixedly installed on the base by bolts, and the horizontal baffles and vertical baffles together form a placement cavity for the disinfection cap fixture.
[0007] As a further improvement, two sets of adjusting bolts are symmetrically provided on one side of the vertical baffle.
[0008] In a further improvement, guide bearings are provided around the guide plate, and the guide bearings are sleeved on the guide post.
[0009] In a further improvement, the piston rod of the cylinder is fixedly connected to the guide plate via a connecting seat.
[0010] In a further improvement, the heating plate includes a heating plate and a hot pressing plate. The heating plate is fixedly connected to the lower end of the guide plate by bolts, and the hot pressing plate is fixedly connected to the lower end of the heating plate by bolts.
[0011] Compared with the prior art, the beneficial effects of this utility model for heat-sealing infusion sterilization caps are as follows:
[0012] The limiting seat on the base is used to precisely position the sterilization cap fixture, ensuring accurate heat sealing. The sterilization cap fixture is equipped with a non-stick, heat-resistant rubber pad and a spring rod. The sterilization cap placement hole in the non-stick, heat-resistant rubber pad is used to place the plastic-sealed shell with the sterilization cap, ensuring that the plastic-sealed shell is completely flat. The spring rod acts as a buffer and auxiliary positioning, limiting the outer side of the plastic-sealed shell to ensure accurate alignment between the heat-sealing area and the heating plate. At the same time, the non-stick, heat-resistant rubber pad ensures that the plastic-sealed shell can be easily removed after heat sealing. This utility model structure realizes automated heat sealing operation, effectively improving heat sealing efficiency and quality, ensuring good sealing of the sterilization cap, and reducing the defect rate caused by poor heat sealing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention.
[0014] Figure 2 This is a partial structural schematic diagram of the present invention.
[0015] In the diagram, 1-base, 11-limiting seat, 111-horizontal baffle, 112-vertical baffle, 113-placement cavity, 114-adjusting bolt, 2-guide post, 3-upper fixing plate, 4-cylinder, 41-piston rod, 42-connecting seat, 5-guide plate, 51-guide bearing, 6-heating pressure plate, 61-heating plate, 62-hot pressure plate, 7-sterilization cap fixture, 71-non-stick heat-resistant rubber pad, 72-sterilization cap placement hole, 73-spring rod. Detailed Implementation
[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] In the description of this utility model, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The following is a description of the embodiments and appendices. Figures 1-2 The technical solution of this utility model will be further described below.
[0019] Example 1
[0020] A device for heat-sealing infusion sterilization caps includes: a base 1, a guide post 2, an upper fixing plate 3, a cylinder 4, a guide plate 5, a heating pressure plate 6, and a sterilization cap fixture 7. The guide post 2 is disposed on the base 1, the upper fixing plate 3 is fixed to the upper end of the guide post 2, the cylinder 4 is fixed to the upper fixing plate 3, the guide plate 5 is slidably disposed on the guide post 2 and its upper end is connected to the output end of the cylinder 4, the heating pressure plate 6 is fixed to the lower end of the guide plate 5, a limiting seat 11 is provided on the upper end surface of the base 1, the sterilization cap fixture 7 is disposed in the limiting seat 11 and is positioned directly opposite the heating pressure plate 6, a plurality of anti-stick heat-resistant rubber pads 71 are spaced apart on the sterilization cap fixture 7, the anti-stick heat-resistant rubber pads 71 are provided with sterilization cap placement holes 72, and spring rods 73 are spaced apart on the sterilization cap fixture 7, the spring rods 73 being located around the anti-stick heat-resistant rubber pads 71.
[0021] like Figure 1 and Figure 2 As shown, the working principle of this utility model is as follows: A cylinder provides power to move the guide plate and the heating plate fixed at its lower end up and down; the limiting seat on the base is used to precisely position the sterilization cap fixture, ensuring accurate heat sealing. The sterilization cap fixture is equipped with a non-stick, heat-resistant rubber pad and a spring rod. The sterilization cap placement hole in the non-stick, heat-resistant rubber pad is used to place the plastic-sealed shell with the sterilization cap, ensuring the plastic-sealed shell is completely flat. The spring rod acts as a buffer and auxiliary positioning, limiting the outer side of the plastic-sealed shell. Simultaneously, the non-stick, heat-resistant rubber pad ensures the plastic-sealed shell can be easily removed after heat sealing.
[0022] This invention enables automated heat sealing, effectively improving heat sealing efficiency and quality, ensuring a good seal on the sterilization cap, and reducing the defect rate caused by poor heat sealing.
[0023] As a further preferred embodiment, the anti-stick heat-resistant rubber pad 71 is provided in three sets at intervals, and each set of the anti-stick heat-resistant rubber pad 71 is provided with six sets of evenly distributed spring rods 73 on the outside, which improves the heat sealing efficiency of the disinfection cap. Three sets can be heat sealed at one time. At the same time, the multiple sets of spring rods 73 can limit the external position of the plastic sealing shell of the disinfection cap packaging, so that the disinfection cap is subjected to uniform pressure and buffering force, avoiding deformation or poor sealing due to uneven local force.
[0024] As a further preferred embodiment, the limiting seat 11 includes two sets of horizontal baffles 111 and vertical baffles 112. The horizontal baffles 111 and vertical baffles 112 are fixedly installed on the base 1 by bolts. The horizontal baffles 111 and vertical baffles 112 enclose and form a placement cavity 113 for the disinfection cap fixture 7, which facilitates the positioning and placement of the disinfection cap fixture and ensures the stability of the fixture during the heat sealing process.
[0025] As a further preferred embodiment, two sets of adjusting bolts 114 are symmetrically provided on one side of the vertical baffle 112 for adjusting the position of the disinfection cap fixture 7, which can meet the heat sealing requirements of various specifications of disinfection caps.
[0026] As a further preferred embodiment, the guide plate 5 is provided with guide bearings 51 around its perimeter, and the guide bearings 51 are sleeved on the guide post 2 to ensure that the guide plate remains stable during the up and down sliding process.
[0027] As a further preferred embodiment, the piston rod 41 of the cylinder 4 is fixedly connected to the guide plate 5 through the connecting seat 42 to ensure that the power of the cylinder is effectively transmitted to the guide plate and to ensure the stability and reliability of the guide plate's movement.
[0028] As a further preferred embodiment, the heating plate 6 includes a heating plate 61 and a hot plate 62. The heating plate 61 is fixedly connected to the lower end of the guide plate 5 by bolts, and the hot plate 62 is fixedly connected to the lower end of the heating plate 61 by bolts. The heating plate is responsible for generating heat, and the hot plate evenly transfers the heat to the sterilization cap. The bolt connection method facilitates the replacement and maintenance of the heating plate and the hot plate, ensures uniform temperature during the heat sealing process, improves the heat sealing quality, and facilitates the repair and replacement of damaged parts, thereby reducing equipment maintenance costs.
[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A device for heat-sealing infusion sterilization caps, characterized in that, include: The device comprises a base, guide pillars, an upper fixing plate, a cylinder, a guide plate, a heating pressure plate, and a sterilization cap fixture. The guide pillars are mounted on the base, the upper fixing plate is fixed to the upper end of the guide pillars, the cylinder is fixed to the upper fixing plate, the guide plate is slidably mounted on the guide pillars and its upper end is connected to the output end of the cylinder, the heating pressure plate is fixed to the lower end of the guide plate, a limiting seat is provided on the upper surface of the base, the sterilization cap fixture is set in the limiting seat and is positioned directly opposite the heating pressure plate, several sets of anti-stick heat-resistant rubber pads are spaced apart on the sterilization cap fixture, sterilization cap placement holes are provided in the anti-stick heat-resistant rubber pads, and spring rods are spaced apart on the sterilization cap fixture, the spring rods being located around the anti-stick heat-resistant rubber pads.
2. The device for heat-sealing infusion sterilization caps according to claim 1, characterized in that, The anti-stick heat-resistant rubber pad is provided in three sets at intervals, and each set of the anti-stick heat-resistant rubber pad has six sets of evenly distributed spring rods on the outside.
3. The device for heat-sealing infusion sterilization caps according to claim 1, characterized in that, The limiting seat includes two sets of horizontal baffles and vertical baffles. The horizontal baffles and vertical baffles are fixedly installed on the base by bolts. The horizontal baffles and vertical baffles together form a placement cavity for the disinfection cap fixture.
4. The device for heat-sealing infusion sterilization caps according to claim 3, characterized in that, Two sets of adjusting bolts are symmetrically arranged on one side of the vertical baffle.
5. The device for heat-sealing infusion sterilization caps according to claim 1, characterized in that, The guide plate is provided with guide bearings around its perimeter, and the guide bearings are sleeved on the guide post.
6. The device for heat-sealing infusion sterilization caps according to claim 1, characterized in that, The piston rod of the cylinder is fixedly connected to the guide plate via a connecting seat.
7. The device for heat-sealing infusion sterilization caps according to claim 1, characterized in that, The heating plate includes a heating plate and a hot pressing plate. The heating plate is fixedly connected to the lower end of the guide plate by bolts, and the hot pressing plate is fixedly connected to the lower end of the heating plate by bolts.