Medical instrument spraying equipment suitable for turbid liquid
By designing multi-axis motion spraying equipment and feeding devices, the problem of slow speed and low efficiency of ultrasonic spraying equipment in suspension spraying is solved, efficient automatic spraying and continuous spraying of non-planar surfaces are achieved, and the spraying speed and efficiency are improved.
Patent Information
- Application Number
- CN202422197120.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing ultrasonic spraying equipment has problems of slow speed and low efficiency when spraying suspension liquid, especially when dealing with continuous curved surfaces and spherical surfaces, it is difficult to achieve efficient continuous spraying due to the power and material characteristics of the ultrasonic spray head structure.
A spraying equipment including a multi-axis movable workbench, an ultrasonic nozzle, a feeding device and a drying device is designed. The feeding device prevents precipitation and solidification through a vibrating device, the feeding nozzle is close to the ultrasonic nozzle, and the material surface activity is improved in combination with the pretreatment device, and the drying device ensures rapid drying and realizes automatic spraying.
It realizes efficient automatic spraying of suspension liquid, improves spraying efficiency, reduces the number of spraying times, adapts to the spraying needs of non-planar surfaces, and improves spraying speed and continuity.
Smart Images
Figure CN223249676U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spraying, in particular to a spraying device suitable for medical instruments of suspension liquid. Background Art
[0002] Medical devices often require coating with liquid materials to meet their needs. This is typically done by brushing, roller coating, or pressure ultrasonic spraying. Ultrasonic atomization and ultrasonic spraying utilizes high-frequency ultrasonic vibration energy to atomize liquid into tiny droplets. These droplets then reach the surface of the material being coated using gravity or a purge gas, completing the coating process. Compared to other coating equipment, ultrasonic atomization and ultrasonic spraying offer significant advantages: low energy consumption, high atomization efficiency, adjustable droplet diameter, and more reliable ultrasonic spraying quality. With technological advancements, ultrasonic spraying is now the primary method of coating medical devices.
[0003] However, for practicality and ease of processing, the power of a single ultrasonic nozzle structure should not be excessive. Furthermore, the ultrasonic atomization capability of ultrasonic nozzles is often limited by physicochemical parameters such as the liquid material's viscosity, surface tension, solids content, and solution homogeneity. Consequently, the concentration and viscosity of liquid materials that can be processed using ultrasonic spraying are limited. Typically, the viscosity is around 10 cps, and the solids content should not exceed 40%. Therefore, to achieve a high coating thickness and weight, multiple spraying passes are required. This requires the ultrasonic spray head to perform multiple reciprocating spraying operations, which is time-consuming. Furthermore, to ensure thorough drying of the sprayed area and prevent droplet agglomeration or even runoff, the coating material must be moved at a moderate speed. In extreme cases, the coating material may need to be paused in place to dry, ultimately resulting in slow and inefficient continuous spraying. Furthermore, for applications requiring non-flat surfaces such as cylindrical or spherical surfaces, spraying one side requires manual rotation and re-spraying.
[0004] In summary, due to the limitations of spraying materials, ultrasonic nozzle structure power and other factors, traditional spraying devices generally have problems of slow speed and low efficiency. When used in continuous curved surfaces and spherical surfaces, either the process is cumbersome and inefficient, or the size of the spraying device is easily restricted by the height of the site. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a spraying device for medical devices suitable for suspensions, so as to solve the problems existing in the prior art.
[0006] To achieve the above-mentioned and other related purposes, the present invention provides a spraying device for medical devices suitable for suspensions; the spraying device comprises at least: a working box with an electric control cabinet, an ultrasonic nozzle, and a feeding device;
[0007] A multi-axis movable workbench is installed on the upper surface of the work box, and the ultrasonic nozzle and feeding device are installed on the upper part of the work box through a mounting frame assembly, and the feeding device is located on one side of the ultrasonic nozzle;
[0008] The feeding device includes a storage device and at least one feeding nozzle connected to the storage device through a feeding pipe, the output port of the feeding nozzle is close to and faces the nozzle of the ultrasonic nozzle; and a vibration device is installed on the feeding pipe.
[0009] Furthermore, the material storage device is equipped with a stirrer for stirring the material in the material storage device.
[0010] Furthermore, the feeding device includes two feeding nozzles, which are tilted and symmetrically arranged on both sides of the nozzle.
[0011] Furthermore, a slide is installed on the mounting frame assembly, and the ultrasonic nozzle is installed on the slide.
[0012] Furthermore, a drying device is installed on the slide, and the drying device is located below the side of the ultrasonic nozzle; the drying area radiated by the drying device completely covers the spraying area of the ultrasonic nozzle.
[0013] Furthermore, the slide is also equipped with a pre-processing device for pre-processing medical instruments.
[0014] Furthermore, the ultrasonic nozzle is provided with a drainage air channel for forming a gas drainage layer and a cooling air channel for cooling the ultrasonic nozzle.
[0015] Furthermore, the cooling air channel runs through the center of the ultrasonic nozzle.
[0016] Furthermore, the length of the feeding pipe does not exceed 200 mm.
[0017] Furthermore, the medical device is a medical stent or a balloon.
[0018] As described above, the spraying device of the present invention for medical devices with suspensions has the following beneficial effects:
[0019] The upper surface of the work box is equipped with a multi-axis movable workbench, and the upper part of the work box is equipped with the ultrasonic nozzle and feeding device through a mounting frame assembly, and the feeding device is located on one side of the ultrasonic nozzle; the feeding device includes a storage device and at least one feeding nozzle connected to the storage device through a feeding pipe, and the output port of the feeding nozzle is close to and facing the nozzle of the ultrasonic nozzle; a vibration device is installed on the feeding pipe. The vibration device can prevent the material in the feeding pipe from sedimentation and stratification or liquid solidification, reduce the viscosity of the liquid material, ensure that the feeding pipe can continuously and smoothly feed, and ensure feeding accuracy; in addition, the output port of the feeding nozzle is close to and facing the nozzle of the ultrasonic nozzle; it can be seen that the feeding component is arranged outside the ultrasonic nozzle for easy maintenance; and it is convenient to replace ultrasonic nozzles of different frequencies and styles as needed to achieve ultrasonic atomization spraying. In addition, the medical device to be sprayed is fixed on the workbench using furniture. Since the workbench can move along multiple axes, it can automatically control the feeding and rotation of the medical device for spraying. The spraying automation level is high and the spraying efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Shown is a three-dimensional diagram of a spraying device for medical devices suitable for suspensions according to the present invention;
[0021] Figure 2 Shown is a schematic diagram of a spraying device for medical devices suitable for suspensions of the present invention;
[0022] Figure 3 show Figure 2 Enlarged view of point A in the middle.
[0023] Figure 4 Shown is a schematic diagram of the layout of the ultrasonic nozzle and the feed nozzle of the present invention.
[0024] Component number description
[0025] 1 working box 2 ultrasonic nozzle
[0026] 11 Electric control cabinet 21 Drainage airway
[0027] 12 Button 22 Cooling air duct
[0028] 13 Control Panel 23 Nozzle
[0029] 14 Workbench 3 Feeding device
[0030] 15 Mounting rack assembly 31 Storage device
[0031] 16 Slide 32 Feed pipe
[0032] 17 Alarm 322 Vibration Device
[0033] 18 Motion shaft component 33 Feed nozzle
[0034] 4 Drying device 6 Clamp
[0035] 5 Pretreatment device DETAILED DESCRIPTION
[0036] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0037] See also Figures 1 to 4 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.
[0038] refer to Figure 1 and Figure 2 The utility model provides a spraying device for medical devices suitable for suspensions; the spraying device at least includes: a working box 1 with an electric control cabinet 11 inside, an ultrasonic nozzle 2, and a feeding device 3.
[0039] The work box 1 adopts a double-layer three-dimensional box structure. The lower layer of the work box 1 is an electric control cabinet 11, a paint tank, etc. The door of the work box 1 is provided with buttons 12 for start and stop, control, etc., as well as a control panel 13, etc. The upper surface of the work box 1 is equipped with a workbench 14 capable of multi-axis movement, and the workbench 14 is equipped with a motion axis component 18, such as the five axes of X, Y, Z, A, and C. The workbench 14 is also equipped with a fixture 6 for fixing the spraying components, as well as auxiliary equipment such as a control panel 13 and a fault alarm 17 light. The fixture 6 includes a flat spraying fixture 6 and a rotary spraying fixture 6; medical devices that require flat spraying are installed on the flat spraying fixture 6, such as a medical stent. Medical devices that require rotary spraying are installed on the rotary spraying fixture 6, such as a medical balloon, see Figure 1 and Figure 2 .
[0040] refer to Figure 2 and Figure 3 The ultrasonic nozzle 2 and the feeding device 3 are installed on the upper part of the working box 1 through the mounting frame assembly 15, and the feeding device 3 is located on one side of the ultrasonic nozzle 2; the feeding device 3 includes a storage device 31 and at least one feeding nozzle 33 connected to the storage device 31 through a feeding pipe 32, and the output port of the feeding nozzle 33 is close to and facing the nozzle 23 of the ultrasonic nozzle 2; since the feeding component is arranged outside the ultrasonic nozzle 2, it is convenient for maintenance; and it is convenient to replace ultrasonic nozzles 2 of different frequencies and styles as needed to achieve ultrasonic atomization spraying.
[0041] like Figure 3 As shown, a vibration device 322 is installed on the feeding pipe 32. The storage device 31 is equipped with a stirrer for stirring the material in the storage device 31. The stirring method adopted by the stirrer can adopt a linear magnetic stirring method, or a powered coil, a rotation plus linear magnetic stirring method, or ultrasonic stirring, centrifugal stirring and other methods to achieve stirring. By stirring, the material in the storage device 31 will not show precipitation, stratification or liquid solidification, and the material transported to the feeding pipe 32 is relatively uniform; and the vibration device 322 vibrates to stir the material in the feeding pipe 32, which can prevent the material from precipitation, stratification, flocculation and solidification during the feeding process, greatly improving the fluidity of the material; making the material output from the feeding nozzle 33 relatively uniform, thereby improving the spraying effect.
[0042] The vibration device 322 of the present application can use a high-speed motor to achieve the vibration of the feed pipe 32, or can use a vibration motor, pneumatic vibrator and other structures to achieve the purpose of vibrating the feed pipe 32. At the same time, pipeline vibration devices with different shapes and structures can also be used.
[0043] Furthermore, the feeding device 3 includes two feeding nozzles 33, which are tilted and symmetrically arranged on both sides of the nozzle 23. Figure 3 and Figure 4 .
[0044] Preferably, reference Figure 2 and Figure 3 A slide 16 is mounted on the mounting frame assembly 15, and the ultrasonic nozzle 2 is mounted on the slide 16. A drying device 4 is also mounted on the slide 16, and the drying device 4 is located below the ultrasonic nozzle 2. The drying area radiated by the drying device 4 completely covers the spraying area of the ultrasonic nozzle 2.
[0045] In the present application, the drying device 4 can move together with the ultrasonic nozzle 2 to ensure that the coated material is quickly dried after spraying, thereby increasing the continuous spraying speed and improving efficiency.
[0046] refer to Figure 3 The slide 16 is also equipped with a pre-treatment device 5 for pre-treating the medical device to be used. In the present application, the pre-treatment device 5 can be an online plasma processor; preferably, the pre-treatment device 5 of the present application can move with the ultrasonic nozzle 2, thereby improving the adhesion of the material surface, increasing the surface activity of the material, cleaning the material surface, ensuring the adhesion of the coating, improving the spraying efficiency, and reducing the number of spraying times.
[0047] Furthermore, the ultrasonic nozzle 2 is provided with a drainage air channel 21 for forming a gas drainage layer and a cooling air channel 22 for cooling the ultrasonic nozzle 2. The ultrasonic nozzle 2 is provided with a drainage air channel 21 and a cooling air channel 22. Figure 4 , achieving lower guide air pressure, lower energy consumption demand, less waste gas and waste liquid generated during the spraying process, and less impact on the environment.
[0048] In order to ensure the cooling effect, preferably, the cooling air channel 22 runs through the center of the ultrasonic nozzle 2. Figure 4 .
[0049] Furthermore, the length of the feed pipe 32 does not exceed 200 mm, thereby ensuring that the distance between the feed device 3 and the feed nozzle 33 is sufficiently short, further ensuring the smoothness of the material flow process in the feed pipe 32, preventing precipitation, coagulation, and flocculation, and ensuring the spraying effect.
[0050] The utility model discloses a spraying device for medical instruments suitable for suspension liquids, which can be used for spraying medical stents or balloons.
[0051] In summary, the present invention is a spraying device for medical devices suitable for suspensions. The upper surface of the work box 1 is equipped with a multi-axis movable workbench 14. The upper part of the work box is equipped with the ultrasonic nozzle 2 and the feeding device 3 through the mounting frame assembly 15, and the feeding device 3 is located on one side of the ultrasonic nozzle 2. The feeding device 3 includes a storage device 31 and at least one feeding nozzle 33 connected to the storage device 31 through a feeding pipe 32. The output port of the feeding nozzle 33 is close to and facing the nozzle 23 of the ultrasonic nozzle 2. The feeding pipe 32 is equipped with a vibration device 322. The vibration device 322 can prevent the material in the feeding pipe 32 from sedimentation and stratification or liquid solidification, reduce the viscosity of the liquid material, ensure that the feeding pipe 32 can continuously and smoothly feed the material, and ensure the feeding accuracy. In addition, the output port of the feeding nozzle 33 is close to and facing the nozzle 23 of the ultrasonic nozzle 2. It can be seen that the feeding component is arranged outside the ultrasonic nozzle 2 for easy maintenance. In addition, the medical device to be sprayed is fixed to the workbench 14 using furniture. Since the workbench 14 can move in multiple directions, it can realize automatic control of the feeding and rotation of the medical device for spraying, and the spraying automation level is high, and the spraying efficiency is greatly improved. In addition, a drying device 4 and a pretreatment device 5 are also installed on the slide 16. The pretreatment device 5 can improve the surface activity of the material, clean the surface of the material, ensure the adhesion of the coating, improve the spraying efficiency, and reduce the number of spraying times. The drying device 4 can ensure that the coated material is quickly dried after spraying, increase the continuous spraying speed, and improve efficiency. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has a high industrial utilization value.
[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.
Claims
1. A spraying device for medical devices suitable for suspensions, characterized in that: The spraying equipment at least includes: a working box with an electric control cabinet, an ultrasonic nozzle, and a feeding device; A multi-axis movable workbench is installed on the upper surface of the work box, and the ultrasonic nozzle and feeding device are installed on the upper part of the work box through a mounting frame assembly, and the feeding device is located on one side of the ultrasonic nozzle; The feeding device includes a storage device and at least one feeding nozzle connected to the storage device through a feeding pipe, the output port of the feeding nozzle is close to and faces the nozzle of the ultrasonic nozzle; and a vibration device is installed on the feeding pipe.
2. The spraying device for medical devices suitable for suspensions according to claim 1, characterized in that: The material storage device is equipped with a stirrer for stirring the material in the material storage device.
3. The spraying device for medical devices suitable for suspensions according to claim 1, characterized in that: The feeding device includes two feeding nozzles, which are tilted and symmetrically arranged on both sides of the nozzle.
4. A spraying device for medical devices suitable for suspensions according to any one of claims 1 to 3, characterized in that: A slide is mounted on the mounting frame assembly, and the ultrasonic nozzle is mounted on the slide.
5. The spraying device for medical devices suitable for suspensions according to claim 4, characterized in that: A drying device is also installed on the slide, and the drying device is located below the side of the ultrasonic nozzle; the drying area radiated by the drying device completely covers the spraying area of the ultrasonic nozzle.
6. The spraying device for medical devices suitable for suspensions according to claim 5, characterized in that: The slide is also provided with a pre-processing device for pre-processing medical instruments.
7. The spraying device for medical devices suitable for suspensions according to claim 1, characterized in that: The ultrasonic nozzle is provided with a drainage air channel for forming a gas drainage layer and a cooling air channel for cooling the ultrasonic nozzle.
8. The spraying device for medical devices suitable for suspensions according to claim 7, characterized in that: The cooling air channel runs through the center of the ultrasonic nozzle.
9. The spraying device for medical devices suitable for suspensions according to claim 1, characterized in that: The length of the feeding pipe does not exceed 200 mm.
10. The spraying device for medical devices suitable for suspensions according to claim 1, characterized in that: The medical device is a medical stent or a balloon.