Ball mill type needle tube polishing cleaning apparatus

Abstract

The utility model relates to medical apparatus and instruments precision machining equipment field especially, relate to ball mill type needle tube polishing cleaning equipment, including collection water tank, the controller is installed in the cleaning pool side, the middle part of collection water tank is connected with the cleaning pool, the width of collection water tank is greater than the width of cleaning pool, the left and right sides in cleaning pool are installed with electric slide rail, the cleaning pool is connected with the push -plate of sliding, the electric slide rail is used for driving push -plate forward and backward sliding, the electric slide rail with controller wired connection, the both sides of cleaning pool are all opened and have the drain, the cross -sectional area of push -plate is greater than the through -hole area of drain, be provided with the circulation assembly for filtering cleaning fluid in collection water tank. Through the push -plate and the drain of setting in the cleaning pool form directional drainage structure, the powder layer of liquid surface floatation and top layer liquid are pushed out simultaneously when push -plate moves along the electric slide rail at uniform speed, keep cleaning fluid circulation simultaneously, reach the purpose of improving surface cleanliness.

Description

Technical Field

[0001] This utility model relates to the field of precision processing equipment for medical devices, and in particular to ball mill type needle polishing and cleaning equipment. Background Technology

[0002] Ball mill needles are key components used in medical devices such as syringes, infusion sets, and biopsy needles, where the surface of medical metal tubing is finished through ball milling. Their core structure is made of corrosion-resistant materials like stainless steel. The impact and friction of the grinding media within the ball mill remove oxide layers, burrs, and microscopic defects from the tubing surface, significantly reducing inner wall roughness. The polishing process is crucial to needle performance; reducing the surface roughness of the inner wall directly reduces fluid transmission resistance and increases biopsy sampling length. However, metal powder generated during polishing can adhere to the inner wall and tiny crevices of the needle. If not thoroughly removed, this can lead to particle shedding during use or affect the device's sealing performance.

[0003] To address the issue of powder residue after polishing, ultrasonic cleaning technology has been introduced into the syringe cleaning process. This technology utilizes high-frequency sound waves to create cavitation in a liquid, using the impact force of the instantaneous bursting of bubbles to remove surface contaminants. It is particularly suitable for simultaneously cleaning the inner and outer walls of slender tubular structures. Compared to traditional rinsing or brushing methods, ultrasonic cleaning effectively removes residual powder from syringes and has become a standard process in the production of medical components.

[0004] However, during the cleaning process, most of the detached powder floats on the liquid surface due to surface tension, forming a dense powder layer. Simultaneously, cavitation bubbles generated by the ultrasound are easily encapsulated by the powder layer as they rise, forming stable bubble-powder complexes. These complexes, with a density close to that of liquid, are difficult to float and break, resulting in a large number of unbroken bubbles on the liquid surface. This not only hinders the observation of the cleaning effect but may also lead to misjudgments of powder residue due to bubble obstruction. Furthermore, the floating powder layer easily re-adheres onto the syringe surface, causing secondary contamination and severely impacting cleaning efficiency and product quality consistency. Utility Model Content

[0005] To overcome the drawback of powder accumulation in liquid, this invention provides a ball mill-type needle polishing and cleaning device, which aims to solve the above-mentioned shortcomings.

[0006] A ball mill-type needle polishing and cleaning device includes a water collection tank, a controller installed on the side of the cleaning tank, and the cleaning tank connected to the middle of the water collection tank. The width of the water collection tank is greater than the width of the cleaning tank. Electric slide rails are installed on the left and right sides of the cleaning tank. A push plate is slidably connected inside the cleaning tank. The electric slide rails are used to drive the push plate to slide back and forth. The electric slide rails are wired to the controller. Drainage outlets are opened on both the front and rear sides of the cleaning tank. The cross-sectional area of ​​the push plate is larger than the through-hole area of ​​the drainage outlet. A circulation component for filtering the cleaning liquid is provided in the water collection tank.

[0007] Furthermore, it is particularly preferred that the filter assembly includes a water supply pipe, and mounting brackets are slidably connected to both ends of the collection tank. Filter cotton is connected to one end of the mounting bracket facing the middle of the collection tank. The bottom end of the water supply pipe passes through the side plate of the collection tank and is equipped with a water pump, which is located at the bottom of the collection tank. The top end of the water supply pipe passes through the side plate of the cleaning pool, and the water pump is wired to the controller.

[0008] Furthermore, it is particularly preferred that a baffle is connected to the middle of the mounting frame, and the baffle is in contact with the side of the filter cotton.

[0009] Furthermore, it is particularly preferred that water guide plates are connected to both the front and rear sides of the cleaning pool, and the water guide plates are located outside the drain outlet.

[0010] Furthermore, it is particularly preferred that filter plates are connected to both the front and rear sides of the cleaning tank, and the filter plates are located at the bottom of the water guide plate.

[0011] Furthermore, it is particularly preferred that a liquid level sensor is installed inside the water collection tank, and the liquid level sensor is wired to the controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The push plate and drain outlet in the cleaning tank form a directional drainage structure. When the push plate moves at a constant speed along the electric slide rail, it pushes out the powder layer floating on the liquid surface and the top liquid simultaneously, while maintaining the circulation of the cleaning liquid, thereby improving the surface cleanliness.

[0014] 2. A liquid guiding and coarse filtration system is formed by the water guide plate and the filter plate. The arc-shaped cross section of the water guide plate guides the overflow liquid to flow down the inner wall. The mesh structure of the filter plate intercepts large particles of powder and breaks the surface tension of the liquid, causing residual bubbles to burst, thereby reducing surface foam and improving subsequent filtration efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the electric slide rail and the push plate of this utility model.

[0017] Figure 3 This is a schematic diagram showing the connection relationship between the water pipe and the water pump of this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the baffle and the filter cotton of this utility model.

[0019] Figure 5 This is a schematic diagram of the installation structure of the water guide plate and filter plate of this utility model.

[0020] The above-mentioned attached drawings include the following reference numerals: 1. Cleaning tank; 101. Controller; 2. Drain outlet; 3. Electric slide rail; 4. Push plate; 5. Water collection tank; 6. Mounting bracket; 7. Filter cotton; 8. Water supply pipe; 9. Water pump; 10. Baffle; 11. Water guide plate; 12. Filter plate; 13. Liquid level sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Ball mill type needle polishing and cleaning equipment, such as Figures 1-5 As shown, the system includes a cleaning tank 1, a controller 101, an electric slide rail 3, a push plate 4, a collection tank 5, and a circulation assembly. The controller 101 is installed on the side of the cleaning tank 1. The collection tank 5 is connected to the cleaning tank 1 in the middle. The width of the collection tank 5 is greater than the width of the cleaning tank 1. Electric slide rails 3 are installed on the left and right sides inside the cleaning tank 1. The push plate 4 is slidably connected inside the cleaning tank 1. The electric slide rails 3 are used to drive the push plate 4 to slide back and forth. The electric slide rails 3 are wired to the controller 101. Strip-shaped drain outlets 2 are opened on both the front and rear sides of the cleaning tank 1. The cross-sectional area of ​​the push plate 4 is greater than the through-hole area of ​​the drain outlet 2. A circulation assembly for filtering the cleaning liquid is installed inside the collection tank 5.

[0023] like Figure 1 and Figure 3As shown, the filter assembly includes a mounting bracket 6, filter cotton 7, water supply pipe 8, and water pump 9. The mounting bracket 6 is slidably connected to both the front and rear ends of the collection tank 5. The mounting bracket 6 adopts a frame structure and is equipped with a handle for easy pulling. The end of the mounting bracket 6 facing the middle of the collection tank 5 is connected to the filter cotton 7, which has a multi-layer fiber structure with progressively decreasing porosity. The bottom end of the water supply pipe 8 passes through the side plate of the collection tank 5 and is equipped with the water pump 9. The water pump 9 is located at the bottom of the collection tank 5. The top end of the water supply pipe 8 passes through the side plate of the cleaning pool 1. The water pump 9 is wired to the controller 101.

[0024] like Figure 3 and Figure 4 As shown, it also includes a baffle 10. The mounting bracket 6 is connected to the middle of the baffle 10. The baffle 10 is attached to the side of the filter cotton 7 and has a vertical plate structure. Its height is about 5-8mm higher than that of the filter cotton 7.

[0025] like Figure 1 and Figure 5 As shown, it also includes a water guide plate 11. Water guide plates 11 are connected to both the front and rear sides of the cleaning pool 1. The water guide plate 11 is located outside the drain outlet 2. The top of the water guide plate 11 is higher than the top of the drain outlet 2 at the connection point with the cleaning pool 1. The middle part of the cleaning pool 1 is curved and covers all areas of the drain outlet 2. There is a liquid passage gap between the bottom of the water guide plate 11 and the cleaning pool 1.

[0026] like Figure 1 and Figure 5 As shown, it also includes filter plates 12. Filter plates 12 are connected to both the front and rear sides of the cleaning tank 1. The filter plates 12 are located at the bottom of the water guide plate 11. The filter plates 12 initially intercept large particles of powder and disrupt the surface tension of the liquid, promote the rupture of bubbles, and improve the subsequent filtration efficiency.

[0027] like Figure 3 As shown, it also includes a liquid level sensor 13. The liquid level sensor 13 is installed in the water collection tank 5. The liquid level sensor 13 is wired to the controller 101. The liquid level sensor 13 sets a backflow threshold. When the liquid level in the water collection tank 5 is greater than the backflow threshold, the electric slide rail 3 sends a start signal to the controller 101, and the controller 101 then starts the water pump 9.

[0028] The operator starts the cleaning program of cleaning tank 1 via controller 101. Then, the operator places the syringes to be cleaned into cleaning tank 1. Upon rapid immersion in the cleaning solution, instantaneous bubbles are generated. As ultrasonic cleaning proceeds, residual powder from the abrasion of the syringe surface gradually detaches under the cavitation effect of the ultrasound, forming a powder layer on the liquid surface. After observing the powder detachment in the cleaning tank, the operator activates the electric slide rail 3 via controller 101, driving the pusher plate 4 to move at a constant speed along the longitudinal direction of the cleaning tank. The bottom of the pusher plate 4 remains immersed 2-3 mm below the liquid surface, directionally pushing the powder-containing liquid on the surface towards the drain outlet 2 area. During the movement of the pusher plate 4, the water guide plate 11 on the outside of cleaning tank 1 simultaneously guides the overflowing liquid down the inner wall, preventing liquid from splashing outside the equipment.

[0029] After the powder-containing liquid flows out through drain outlet 2, it passes through filter plate 12 for coarse filtration. The mesh structure of filter plate 12 can intercept larger particles and disrupt the surface tension of the liquid, causing residual bubbles to burst. The filtered liquid continues to fall onto filter cotton layer 7. The baffle 10 on the side of the mounting frame 6 effectively restricts the liquid diffusion range, ensuring that all liquid vertically penetrates the filter cotton 7. The multi-layer fiber structure of filter cotton 7 deeply adsorbs tiny powder particles, while accelerating liquid infiltration through capillary action. The liquid level sensor 13 in the collection tank 5 monitors the liquid level in real time. When the accumulated liquid reaches the preset reflux threshold, the sensor sends a signal to the controller 101, which starts the water pump 9 to pump the filtered cleaning liquid back to the cleaning tank 1 through the water pipe 8, forming a circulating filtration system.

[0030] During the cleaning process, the controller 101 continuously coordinates the movement frequency of the pusher plate 4 with the suction speed of the water pump 9 to ensure that the liquid level in the cleaning tank 1 remains within the effective working range. When a significant increase in the light transmittance of the discharged liquid is observed, the operator closes the cleaning program, first stopping the movement of the pusher plate 4 via the controller 101, and then turning off the ultrasonic generator after the liquid level stabilizes. Finally, a special clamp is used to remove the cleaned syringe. After the equipment has been running for a period of time, the operator can remove the mounting bracket 6 by climbing up the guide rail of the collection tank 5, remove the filter plate 12 for ultrasonic cleaning, and replace the saturated filter cotton 7 module to ensure that the filtration system continues to maintain a high-efficiency working state.

[0031] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A ball mill-type needle grinding and cleaning equipment, characterized in that, The system includes a water collection tank (5), a controller (101) installed on the side of the cleaning pool (1), the water collection tank (5) is connected to the middle of the cleaning pool (1), the width of the water collection tank (5) is greater than the width of the cleaning pool (1), electric slide rails (3) are installed on the left and right sides of the cleaning pool (1), a push plate (4) is slidably connected in the cleaning pool (1), the electric slide rails (3) are used to drive the push plate (4) to slide back and forth, the electric slide rails (3) are wired to the controller (101), drain outlets (2) are opened on both the front and rear sides of the cleaning pool (1), the cross-sectional area of ​​the push plate (4) is greater than the through hole area of ​​the drain outlet (2), and a circulation component for filtering the cleaning liquid is provided in the water collection tank (5).

2. The ball mill type needle grinding and cleaning equipment as described in claim 1, characterized in that, The filter assembly includes a water supply pipe (8), and mounting brackets (6) are slidably connected to both ends of the collection tank (5). A filter cotton (7) is connected to one end of the mounting bracket (6) facing the middle of the collection tank (5). The bottom end of the water supply pipe (8) passes through the side plate of the collection tank (5) and is equipped with a water pump (9). The water pump (9) is located at the bottom of the collection tank (5). The top end of the water supply pipe (8) passes through the side plate of the cleaning pool (1). The water pump (9) is wired to the controller (101).

3. The ball mill-type needle polishing and cleaning equipment as described in claim 2, characterized in that, A baffle (10) is connected to the middle of the mounting bracket (6), and the baffle (10) is attached to the side of the filter cotton (7).

4. The ball mill-type needle polishing and cleaning equipment as described in claim 3, characterized in that, The cleaning pool (1) is connected to water guide plates (11) on both the front and rear sides, and the water guide plates (11) are located outside the drain outlet (2).

5. The ball mill type needle grinding and cleaning equipment as described in claim 4, characterized in that, The cleaning tank (1) is connected to filter plates (12) on both the front and rear sides, and the filter plates (12) are located at the bottom of the water guide plate (11).

6. The ball mill-type needle polishing and cleaning equipment as described in claim 5, characterized in that, A liquid level sensor (13) is installed inside the water collection tank (5), and the liquid level sensor (13) is wired to the controller (101).

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