A polishing device for needle tube processing

Abstract

The utility model relates to medical instrument manufacturing field especially, and more particularly relates to a kind of polishing device for needle tube processing, including abrasive flow polishing machine and needle tube, fixed plate is connected in the abrasive flow polishing machine, the clamping assembly for clamping the needle tube is installed in the fixed plate, the clamping assembly top and the inside communication of the abrasive flow polishing machine, the fixed plate top rotationally connected with base, the collecting box is slidably connected in the base top, the collecting box is located the needle tube port bottom, the collecting box bottom is connected with guide block, the base top is opened with the sliding slot of the guide block cooperation, the uniform component for driving the rotation of the base is provided on the fixed plate. Through the guide block-sliding slot cooperation of base and collecting box, collecting box can linearly slide along base sliding slot, so as to realize the quick taking and placing and accurate reset of collecting box, finally reach the purpose of avoiding abrasive random accumulation, facilitate centralized recovery.

Description

Technical Field

[0001] This utility model relates to the field of medical device manufacturing, and in particular to a polishing device for needle processing. Background Technology

[0002] As a core component in the medical field for delivering medications, the cleanliness of the syringe's inner wall directly affects its safety and the efficiency of medication flow. Because the inner diameter of syringes is typically very small, traditional cleaning methods are insufficient to completely remove contaminants from the inner wall. Currently, the industry uses a special mud-like polishing material and a fluid polishing process to polish the inner wall. Specifically, a semi-fluid polishing medium containing abrasive particles is forced into the syringe under high pressure. The friction between the abrasive particles and the inner wall removes burrs and oxide layers, and cleaning is finally completed by rinsing with pure water.

[0003] However, the lack of an effective recycling mechanism for the polished, mud-like material leads to the following problems: indiscriminate accumulation of material results in raw material waste; the abrasive particles and binders in the mud-like polishing medium cannot be recycled, increasing production costs; accumulated material easily hardens and clumps, requiring manual intervention for subsequent cleaning, reducing production efficiency; and residual material may mix into the next polishing process, posing a risk of cross-contamination. Furthermore, traditional equipment lacks dedicated recycling channels and filtration systems, preventing the separation of impurities in the polishing medium and further affecting the stability of polishing quality. Utility Model Content

[0004] To overcome the disadvantage of material accumulation and inconvenience in recycling, this utility model provides a polishing device for needle tube processing, aiming to solve the above-mentioned shortcomings.

[0005] A polishing device for needle processing includes an abrasive flow polisher and a needle. A fixed plate is connected inside the abrasive flow polisher. A clamping assembly for holding the needle is installed on the fixed plate. The top of the clamping assembly communicates with the interior of the abrasive flow polisher. A base is rotatably connected to the top of the fixed plate. A collection box is slidably connected to the top of the base. The collection box is located at the bottom of the needle port. A guide block is connected to the bottom of the collection box. A groove that mates with the guide block is opened on the top of the base. A uniform component for driving the base to rotate is provided on the fixed plate.

[0006] Furthermore, the uniform component includes a gear, a gear ring is connected to the lower outer ring of the base, a mounting bracket is connected to the fixing plate, a gear is mounted on the top of the mounting bracket, the gear is rotatably connected in the sandwich between the fixing plate and the mounting bracket, the output shaft of the motor is coaxially connected to the gear facing downwards, and the gear meshes with the gear ring.

[0007] Furthermore, the fixing plate is connected to a scraper, the upper end of which is located at the top of the collection box.

[0008] Furthermore, a baffle is connected to the top surface of the gear ring.

[0009] Furthermore, a limit plate is connected to the end of the guide block.

[0010] Furthermore, a push plate is slidably connected inside the collection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. By cooperating with the guide block-slide groove of the base and the collection box, the collection box can slide linearly along the slide groove of the base, thereby realizing the quick loading and unloading and precise resetting of the collection box, and ultimately achieving the purpose of avoiding random accumulation of abrasive particles and facilitating centralized recycling.

[0013] 2. Through the meshing transmission of the motor-driven gear and gear ring, the base drives the collection box to swing in a circular motion, thereby achieving uniform stacking of abrasive particles in the collection box, ultimately improving the space utilization of the collection box and reducing the frequency of single cleaning.

[0014] 3. By tightly fitting the pusher plate against the inner wall of the collection box and sliding it out, the stacked abrasive particles are completely carried out, while the residue on the surface of the pusher plate is scraped off, thereby achieving complete recycling of the abrasive particles and ultimately reducing material waste and improving reuse 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 base and the collection box of this utility model.

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

[0018] Figure 4 This is an exploded view showing the connection relationship between the limiting plate and the guide plate of this utility model.

[0019] Reference numerals: 1_Abrasive flow polisher, 2_Fixed plate, 3_Clamping assembly, 4_Needle tube, 5_Base, 6_Collection box, 7_Guide block, 8_Gear ring, 9_Mounting bracket, 10_Motor, 11_Gear, 12_Scraper, 13_Baffle, 14_Limiting plate, 15_Push plate. Detailed Implementation

[0020] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0021] Example: A polishing apparatus for needle tube processing, such as Figures 1-4 As shown, the assembly includes an abrasive flow polishing machine 1, a fixed plate 2, a clamping assembly 3, a needle tube 4, a base 5, a collection box 6, a guide block 7, and a homogenizing component. The fixed plate 2 is connected inside the abrasive flow polishing machine 1. The fixed plate 2 is equipped with a clamping assembly 3 for clamping the needle tube 4. The clamping assembly 3 adopts an adjustable claw structure with a flexible rubber pad inside to adapt to needle tubes 4 of different diameters and avoid clamping damage. The top of the clamping assembly 3 is connected to the inside of the abrasive flow polishing machine 1. The base 5 is rotatably connected to the top of the fixed plate 2. The collection box 6 is slidably connected to the top of the base 5. The collection box 6 is located at the bottom of the needle tube 4 port. The bottom of the collection box 6 is connected to the guide block 7. The top of the base 5 has a groove that mates with the guide block 7. The base 5 adopts a circular turntable structure. The guide block 7 is interference-fitted with the base 5. The homogenizing component is provided on the fixed plate 2 to drive the base 5 to rotate.

[0022] like Figure 2 and Figure 3 As shown, the uniform assembly includes a gear ring 8, a mounting bracket 9, a motor 10, and a gear 11. The gear ring 8 is connected to the lower outer ring of the base 5, and the mounting bracket 9 is connected to the fixing plate 2. The gear 11 is mounted on the top of the mounting bracket 9. The gear 11 is rotatably connected in the sandwich between the fixing plate 2 and the mounting bracket 9. The output shaft of the motor 10 is keyed to the gear 11 with the shaft facing downward. The motor 10 is a low-speed reduction motor. The gear 11 meshes with the gear ring 8. The number of teeth of the gear 11 is less than that of the gear ring 8, which further reduces the rotational speed of the gear ring 8.

[0023] like Figure 2 As shown, it also includes a scraper 12. The fixed plate 2 is connected to the scraper 12. The upper end of the scraper 12 is located at the top of the collection box 6. The scraper 12 is made of rubber and has a wedge shape at the upper end.

[0024] like Figure 2 As shown, it also includes a baffle 13. The top surface of the gear ring 8 is connected to the baffle 13. The baffle 13 is an annular thin plate, which is coaxially welded with the gear ring 8. The outer edge is bent upward at 15° and the inner edge is provided with a slag collection groove.

[0025] like Figure 2 and Figure 4 As shown, it also includes a limiting plate 14. The end of the guide block 7 is connected to the limiting plate 14. The limiting plate 14 is a rectangular steel plate with a width greater than the width of the groove of the base 5.

[0026] like Figure 2 and Figure 4 As shown, it also includes a push plate 15, which is slidably connected inside the collection box 6, and vertical handles are connected to both ends of the push plate 15.

[0027] The operator first inserts one end of the needle tube 4 into the positioning hole of the clamping component 3, and fixes the needle tube 4 by rotating the clamping component 3 to ensure that the axis of the needle tube 4 is coaxial with the conveying channel of the clamping component 3. At this time, the abrasive flow polishing machine 1 is started. Its internal pressure system delivers the mixture of abrasive and lubricant to the clamping component 3 through the pipeline. Under the action of pressure, the mixture flows along the inner cavity of the needle tube 4. After polishing, it is sprayed out in a fan shape from the other end of the needle tube 4. The scattered abrasive particles naturally fall into the feed port of the collection box 6 directly below.

[0028] When the abrasive particles in the collection box 6 accumulate to a certain height, the operator starts the motor 10. The motor 10 drives the gear 11 to rotate at a low speed. The gear 11 meshes with the gear ring 8 to drive the base 5 to rotate horizontally. The base 5 converts the rotational motion into the circumferential motion of the collection box 6 through the cooperation structure of the sliding groove and the guide block 7. At this time, the abrasive particles in the collection box 6 form a uniform conical stack in the continuous oscillation. At the same time, the scraper 12 fixed to the outer shell of the abrasive flow polishing machine 1 is attached to the top of the collection box 6 at a certain angle. The circumferential motion of the collection box 6 flattens the stacked surface to avoid local excessive height affecting the subsequent capacity judgment.

[0029] After polishing a single needle tube 4, the operator closes the conveying valve of the abrasive flow polishing machine 1, loosens the locking knob of the clamping assembly 3 to remove the needle tube 4, and replaces it with a new needle tube 4 to repeat the fixing operation. At this time, abrasive particles continue to accumulate in the collection box 6. When the abrasive particles are observed to be close to the upper edge of the collection box 6, the operator turns off the motor 10 to stop swinging, holds the side wall of the collection box 6 and gently pulls it along the pull-out direction marked by the limit plate 14. The guide block 7 slides linearly in the slide groove of the base 5 until it is completely separated from the base 5 to complete the box removal action.

[0030] Move the removed collection box 6 above the feed inlet of the abrasive flow polishing machine 1. The operator holds the handle of the push plate 15 and pulls it outward. The edge of the push plate 15 fits tightly against the inner wall of the collection box 6. The stacked abrasive particles are pushed out as a whole by sliding in one direction. A small amount of abrasive particles remaining on the surface of the push plate 15 are scraped off by the edge of the feed inlet of the collection box 6 during the pulling process. Then, the push plate 15 is reinserted into the collection box 6. The operator holds the guide block 7 and aligns it with the slide groove of the base 5. The collection box 6 is gently pushed until the limit plate 14 contacts the end face of the base 5. At this time, the guide block 7 is fully embedded in the slide groove and the axis of the collection box 6 coincides with the rotation center of the base 5. After the reset operation is completed, the next round of polishing can be continued.

[0031] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A polishing apparatus for needle tube processing, characterized in that, The device includes an abrasive flow polishing machine (1) and a needle tube (4). The abrasive flow polishing machine (1) is connected to a fixed plate (2). The fixed plate (2) is equipped with a clamping assembly (3) for clamping the needle tube (4). The top of the clamping assembly (3) is connected to the inside of the abrasive flow polishing machine (1). The top of the fixed plate (2) is rotatably connected to a base (5). The top of the base (5) is slidably connected to a collection box (6). The collection box (6) is located at the bottom of the port of the needle tube (4). The bottom of the collection box (6) is connected to a guide block (7). The top of the base (5) has a sliding groove that cooperates with the guide block (7). The fixed plate (2) is provided with a uniform component for driving the base (5) to rotate.

2. The polishing apparatus for needle tube processing according to claim 1, characterized in that, The uniform component includes a gear (11), a gear ring (8) is connected to the outer ring of the lower end of the base (5), a mounting bracket (9) is connected to the fixing plate (2), a gear (11) is installed on the top of the mounting bracket (9), the gear (11) is rotatably connected in the sandwich between the fixing plate (2) and the mounting bracket (9), the output shaft of the motor (10) is coaxially connected to the gear (11) facing downward, and the gear (11) meshes with the gear ring (8).

3. The polishing apparatus for needle tube processing according to claim 2, characterized in that, The fixing plate (2) is connected to a scraper (12), the upper end of which is located at the top of the collection box (6).

4. The polishing apparatus for needle tube processing according to claim 3, characterized in that, A baffle (13) is connected to the top surface of the gear ring (8).

5. A polishing apparatus for needle tube processing according to claim 4, characterized in that, The guide block (7) is connected to a limiting plate (14) at its end.

6. The polishing apparatus for needle tube processing according to claim 5, characterized in that, A push plate (15) is slidably connected inside the collection box (6).

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