Walnut peel powder micro-nano polishing system for inner hole of high borosilicate microsyringe

Abstract

The invention discloses a walnut skin powder micro-nano polishing system for an inner hole of a high borosilicate microsyringe, and relates to the technical field of polishing of inner holes of syringes. The device comprises a powder containing barrel, a spline pipe column-plugging disc multi-through-hole positioning assembly, a polishing rod synchronous rotating driving mechanism and an automatic feeding-discharging mechanism. By means of swing driving disc indexing feeding, vibration-centrifugal composite polishing, plugging column sealing and connecting rod-rack transmission discharging, one-time efficient, low-damage and environment-friendly polishing of the inner walls of the multiple injectors is achieved, the surface consistency, the machining takt and the powder recoverability are remarkably improved, and the device is suitable for batch precision manufacturing of disposable medical instruments.

Description

Technical Field

[0001] The present invention relates to the technical field of syringe inner hole polishing, and specifically to a walnut skin powder for micro-nano polishing system of the inner hole of a high borosilicate micro syringe. Background Art

[0002] Currently, for the micro-nano level polishing of the narrow inner hole of a high borosilicate micro syringe, the industry generally adopts the following three methods: Chemical etching - cleaning combined method: obtaining a mirror surface through etching with hydrofluoric acid or mixed acid, but with high acid consumption, easy generation of stress microcracks on the pore wall and residual ion pollution; Ultrasonic - particle suspension circulation method: using alumina or silica slurry to scour the pore wall in ultrasonic cavitation, limited by the dead angle of slurry flow, prone to polishing blind spots and frequent replacement of the slurry; Manual wire drawing or single-axis rope polishing method: the operator immerses the flexible polishing ribbon in abrasive and repeatedly inserts it into the pore channel, with low efficiency and poor batch consistency. The above-mentioned solutions generally have problems such as long processing cycle, high requirements for environmental and personnel protection, complex batch clamping and large positioning errors, and it is difficult to meet the requirements of medical devices for high cleanliness and dimensional batch consistency. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: A walnut skin powder for micro-nano polishing system of the inner hole of a high borosilicate micro syringe, including a powder placement barrel, the bottom of the powder placement barrel is fixedly and sealed with a base plate, a plurality of through holes are equidistantly and circularly arranged on the base plate, and a U-shaped groove clamping plate is correspondingly arranged below each through hole. There is a gap between the U-shaped groove clamping plate and the lower surface of the base plate, and this gap can allow the wing support on the high borosilicate micro syringe to be inserted (when the high borosilicate micro syringe moves to the bottom position inside the U-shaped groove clamping plate, the through holes on the base plate are aligned with the high borosilicate micro syringe); A spline tube column is rotatably installed at the axial center position of the upper surface of the base plate, a plugging plate is rotatably installed on the upper surface of the base plate, and through holes with the same shape and number as those on the base plate are opened on the plugging plate. A driving polishing rod is arranged directly above the axis of each through hole opened on the base plate, and the driving polishing rod can be inserted into the high borosilicate micro syringe. A plurality of paddles are arranged on the high borosilicate micro syringe, which are used to drive the walnut skin powder to rotate inside the high borosilicate micro syringe; A blanking push rod sliding seat is fixedly installed at the center position of the lower surface of the base plate, and a blanking push rod with the same number as the through holes opened on the base plate is slidably installed on the lower surface of the blanking push rod sliding seat along its radial direction. One end of each blanking push rod away from the axis of the base plate is fixedly installed with a blanking push plate, and the blanking push plate is used to push the wing support on the high borosilicate micro syringe away from between the U-shaped groove clamping plate and the base plate.

[0004] Preferably, each U-shaped groove clamping plate is elastically mounted on the circumferential surface of the blanking push rod sliding seat through a corresponding clamping elastic component, and the U-shaped groove clamping plate is in sliding fit with the circumferential surface of the blanking push rod sliding seat. The sliding fit direction between the U-shaped groove clamping plate and the circumferential surface of the blanking push rod sliding seat is parallel to the axis of the U-shaped groove clamping plate, and is used to move the U-shaped groove clamping plate towards the base plate (when the U-shaped groove clamping plate moves to the position closest to the base plate, there is still a gap between the U-shaped groove clamping plate and the base plate, and the clamping elastic component is used to provide a squeezing force on the wing support of the high borosilicate micro syringe).

[0005] Preferably, the plugging disc is fixedly mounted on the spline pipe column. A polishing drive seat is sleeved on the circumferential surface of the spline pipe column in a spline sliding manner. At the circumferential position of the upper surface of the polishing drive seat, polishing execution gears with the same number as the through holes opened on the base plate are rotatably mounted. The top end of each polishing execution gear is fixedly fitted with a polishing rod in a driving manner, and is used to drive the polishing rod to rotate. A linkage gear ring that meshes with all the polishing execution gears is also rotatably mounted on the polishing drive seat, and is used to synchronize the rotation of all the driving polishing rods. A dust-proof seal cover is fixedly mounted on the polishing drive seat, and the dust-proof seal cover is used to wrap the polishing execution gears and the linkage gear ring on the polishing drive seat. A polishing drive motor is fixedly mounted on the dust-proof seal cover, and the output shaft of the polishing drive motor is fixedly fitted with one of the polishing execution gears.

[0006] Preferably, a cover plate is fixedly and sealingly mounted on the top of the powder placement bucket. An arc-shaped material reduction port and a swinging arc-shaped through hole are opened on the cover plate. At the center position of the upper surface of the cover plate, a swinging drive disc is rotatably mounted. The top end of the spline pipe column passes through the cover plate and is fixedly fitted with the swinging drive disc, and the spline pipe column is in rotational fit with the cover plate; a swinging drive electric cylinder is also movably connected to the upper surface of the cover plate. The end of the telescopic rod of the swinging drive electric cylinder is movably connected to the circumferential edge position of the swinging drive disc, and the telescopic cylinder of the swinging drive electric cylinder is movably connected to the cover plate; a lifting electric cylinder is fixedly mounted on the swinging drive disc, and the end of the telescopic rod of the lifting electric cylinder passes through the swinging arc-shaped through hole and is fixedly fitted with the dust-proof seal cover.

[0007] Preferably, a central sliding column is slidably inserted into the axial center position of the spline pipe column. The top end of the central sliding column penetrates above the swinging drive disc, and the bottom end of the central sliding column penetrates below the blanking push rod sliding seat; a connecting rod mounting seat is slidably sleeved on the circumferential surface of the central sliding column below the blanking push rod sliding seat. A connecting rod is movably connected between the connecting rod mounting seat and one end of each blanking push rod close to the axis of the base plate; a bottom support circular plate is fixedly mounted at the bottom end of the central sliding column. At the circumferential position of the upper surface of the bottom support circular plate, plugging columns with the same number as the through holes opened on the base plate are fixedly mounted. The top end of each plugging column is rotatably mounted with a counterweight, and the counterweight is in abutting fit with the bottom end of the driving polishing rod. The plugging column can be inserted into the Luer connector of the high borosilicate micro syringe.

[0008] Preferably, the cover plate is suspended and fixed under the top plate by a suspension column, and two suspension slide bars are fixedly mounted on the top plate, on which a material discharge placement ring frame is slidably mounted, and the material discharge placement ring frame is provided with a plurality of U-shaped grooves of the same shape as the U-shaped groove clamping plate for storing borosilicate micro-syringes (the material discharge placement ring frame is magnetically matched with the top plate, and there is friction in the sliding between the material discharge placement ring frame and the suspension slide bar, and the friction can support the weight of all borosilicate micro-syringes placed on the material discharge placement ring frame).

[0009] Preferably, the top plate is fixedly mounted above the base via support columns, and an operating ring plate that is concentrically matched with the bottom supporting circular plate is also fixedly mounted on the base, wherein the bottom supporting circular plate is slidably arranged on the inner side of the operating ring plate; a bow-shaped frame is fixedly mounted on the lower surface of the operating ring plate, a gearbox bracket is fixedly mounted on the bow-shaped frame, and a gearbox is fixedly mounted on the gearbox bracket, wherein a spring is arranged between the bottom supporting circular plate and the base for providing an upward reset force to the bottom supporting circular plate.

[0010] Preferably, an input gear is fixedly mounted on the input shaft of the gearbox, and an output gear is fixedly mounted on the output shaft of the gearbox, wherein an active rack and a passive rack are slidably mounted on the gearbox bracket, the active rack meshes with the input gear for transmission, and the passive rack meshes with the output gear for transmission, wherein the top end of the active rack contacts and cooperates with the lower surface of the bottom supporting circular plate.

[0011] Preferably, a swinging contact plate bracket is fixedly mounted on the upper surface of the cover plate, and a swinging contact plate is movably mounted on the swinging contact plate bracket. One end of the swinging contact plate is overlapped on the top of the central sliding column, and the other end of the swinging contact plate covers the top of the arc-shaped material reduction port. The end of the swinging contact plate away from the central sliding column is in contact and cooperation with the outer casing of the polishing drive motor.

[0012] Preferably, a material unloading slide rod is also slidably installed on the operating ring plate, and a material unloading toggle frame is fixedly installed on the top of the material unloading slide rod, and the end of the material unloading toggle frame away from the material unloading slide rod is slidably sleeved on the central sliding column, and the material unloading toggle frame is fixedly matched with the connecting rod mounting seat, the bottom end of the material unloading slide rod is fixedly matched with the passive rack, and a tension spring is sleeved on the material unloading slide rod, and the two ends of the tension spring are fixedly matched with the material unloading toggle frame and the operating ring plate.

[0013] The present invention has the following beneficial effects compared with the prior art: (1) With the star-shaped concentric positioning structure of the plugging disc-spline tube column-driving polishing rod, the present invention can complete the synchronous polishing of the full inner diameter of multiple syringes in one clamping. Under the action of centrifugal force, the walnut shell powder uniformly covers the hole wall by 360°, and a spiral cutting motion is generated by the deflector, avoiding the potential problems of local over-polishing, under-polishing and micro-cracks caused by single-wire drawing or pickling of a single syringe, and greatly improving the consistency of the inner surface roughness and the mechanical integrity; (2) The present invention adopts the double sealing and positioning design of the clamping elastic component and the plugging column, and the Luer connector can be automatically closed after the wing support is inserted. The whole polishing-feeding-discharging process forms a closed dust loop. Compared with the traditional open finishing, it can significantly reduce the pollution risk of powder dispersion to the respiratory tract of operators and the production environment, and at the same time eliminate the discharge of corrosive waste liquid required for pickling, having excellent ecological environmental protection and occupational health value; (3) The cooperation of the spline-slidable polishing driving seat and the linkage gear ring of the present invention enables all the driving polishing rods to maintain strict synchronization driven by a single motor. Combined with the rapid indexing feeding mechanism of the swing driving disc, a rhythmic cycle of powder filling-polishing-powder discharging-material discharging is realized; (4) The hardened walnut shell powder in the present invention is more likely to form a dense and uniform micro-cutting cloud in the centrifugal-vibration composite energy field, and can achieve a high removal rate with a smaller unit scratch depth, thereby significantly reducing the residual roughness of the inner wall of high borosilicate, improving the geometric consistency and micro-leakage threshold of the syringe piston-inner cavity mating surface, and finally making the piston pushing resistance stable and the sealing reliable; (5) The present invention improves the powder fluidity and filling efficiency by vibration, and enhances the effective normal pressure of the abrasive on the hole wall by centrifugation; the coupling of the two establishes a dynamic adaptive polishing environment, which can form high-density micro-cutting tracks in a short time, shorten the polishing time compared with the ultrasonic slurry method, and at the same time avoid the glass micro-cracks and turbid residues easily caused by ultrasonic cavitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the structure at the swing contact plate of the present invention.

[0016] Figure 3 For the present invention Figure 3 Schematic diagram of the structure at position A.

[0017] Figure 4 It is a schematic diagram of the structure at the bow-shaped frame of the present invention.

[0018] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at position B.

[0019] Figure 6 It is a schematic diagram of the structure at the central sliding column of the present invention.

[0020] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point C in the middle.

[0021] Figure 8 It is a schematic diagram of the internal structure of the powder placing barrel of the present invention.

[0022] Figure 9 It is a structural schematic diagram of the cover plate of the present invention.

[0023] Figure 10 It is a schematic diagram of the structure of the dustproof sealing cover of the present invention.

[0024] Figure 11 It is a structural schematic diagram of the base plate of the present invention.

[0025] Figure 12 It is a schematic diagram of the structure of the U-shaped groove clamping plate of the present invention.

[0026] Figure 13 For the present invention Figure 12 Schematic diagram of the structure at point D in the middle.

[0027] In the figure: 101-support column; 102-lifting slide bar; 103-unloading ring frame; 104-lifting column; 105-base; 106-top plate; 107-cover plate; 108-powder placement barrel; 109-operating ring plate; 110-bottom supporting circular plate; 111-bow frame; 112-active rack; 113-gearbox; 114-output gear; 115-passive rack; 116-unloading slide bar; 117-input gear; 118-gearbox bracket; 119-lifting electric cylinder; 120-swinging contact plate; 121-swinging contact plate bracket; 122-center sliding column; 123-arc-shaped material reduction port; 124-unloading toggle frame; 125-tension spring; 126-connecting rod mounting seat; 127-connecting rod; 128-feeding push rod; 129-feeding push rod sliding seat; 130-feeding push plate; 131-driving polishing rod; 132-high borosilicate micro-syringe; 133-U-groove clamping plate; 134-sealing plate; 135-base plate; 136-clamping elastic component; 137-spline column; 138-polishing drive seat; 139-dustproof sealing cover; 140-polishing execution gear; 141-linked gear ring; 142-polishing drive motor; 143-swing drive electric cylinder; 144-swing drive disk; 145-swing arc through hole; 146-sealing column; 147-offset. DETAILED DESCRIPTION

[0028] The following is combined with Figures 1-13 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0029] The present invention provides a micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder, which includes a powder placement barrel 108. A base plate 135 is fixedly and sealingly installed at the bottom of the powder placement barrel 108. A plurality of through holes are equidistantly and circularly arranged on the base plate 135. A U-shaped groove clamping plate 133 is correspondingly arranged below each through hole. A gap is left between the U-shaped groove clamping plate 133 and the lower surface of the base plate 135, and this gap allows the wing support on the high-borosilicate micro syringe 132 to be inserted (when the high-borosilicate micro syringe 132 moves to the bottom position within the U-shaped groove clamping plate 133, the through holes on the base plate 135 are aligned with the high-borosilicate micro syringe 132); A spline tube column 137 is rotatably installed at the axial center position of the upper surface of the base plate 135. A plugging plate 134 is rotatably installed on the upper surface of the base plate 135. The plugging plate 134 is provided with through holes having the same shape and number as those on the base plate 135. A driving polishing rod 131 is arranged directly above the axis of each through hole opened on the base plate 135. The driving polishing rod 131 can be inserted into the high-borosilicate micro syringe 132. A plurality of paddles are arranged on the high-borosilicate micro syringe 132 for driving the walnut peel powder to rotate within the high-borosilicate micro syringe 132; A blanking push rod sliding seat 129 is fixedly installed at the center position of the lower surface of the base plate 135. Along the radial direction of its lower surface, blanking push rods 128 having the same number as the through holes opened on the base plate 135 are slidably installed. One end of each blanking push rod 128 away from the axis of the base plate 135 is fixedly installed with a blanking push plate 130, and the blanking push plate 130 is used to push the wing support on the high-borosilicate micro syringe 132 away from between the U-shaped groove clamping plate 133 and the base plate 135. Each U-shaped groove clamping plate 133 is elastically installed on the circumferential surface of the blanking push rod sliding seat 129 through a corresponding clamping elastic component 136, and the U-shaped groove clamping plate 133 is slidably matched with the circumferential surface of the blanking push rod sliding seat 129. The sliding direction of the U-shaped groove clamping plate 133 and the blanking push rod sliding seat 129 is parallel to the axis of the U-shaped groove clamping plate 133, and is used to move the U-shaped groove clamping plate 133 towards the base plate 135 (when the U-shaped groove clamping plate 133 moves to the position closest to the base plate 135, a gap still remains between the U-shaped groove clamping plate 133 and the base plate 135, and the clamping elastic component 136 is used to provide an extrusion force on the wing support of the high-borosilicate micro syringe 132).The plugging disc 134 is fixedly installed on the spline pipe column 137. A polishing drive seat 138 is sleeved on the circumferential surface of the spline pipe column 137 in a spline-sliding manner. At the circumferential position of the upper surface of the polishing drive seat 138, polishing execution gears 140 with the same number as the through holes opened on the base disc 135 are rotatably installed. The top end of each polishing rod 131 is fixedly fitted and driven evenly by each polishing execution gear 140 for driving the polishing rod 131 to rotate. A linkage gear ring 141 that meshes with all the polishing execution gears 140 is also rotatably installed on the polishing drive seat 138 for synchronously driving all the polishing rods 131 to rotate. A dust-proof seal cover 139 is fixedly installed on the polishing drive seat 138. The dust-proof seal cover 139 is used to wrap the polishing execution gears 140 and the linkage gear ring 141 on the polishing drive seat 138. A polishing drive motor 142 is fixedly installed on the dust-proof seal cover 139. The output shaft of the polishing drive motor 142 is fixedly fitted with one of the polishing execution gears 140. The top of the powder placement bucket 108 is fixedly and sealed with a cover plate 107. An arc-shaped material-reducing port 123 and a swinging arc-shaped through hole 145 are opened on the cover plate 107. A swinging drive disc 144 is rotatably installed at the central position of the upper surface of the cover plate 107. The top end of the spline pipe column 137 passes through the cover plate 107 and is fixedly fitted with the swinging drive disc 144. The spline pipe column 137 is rotatably fitted with the cover plate 107. A swinging drive electric cylinder 143 is also movably connected to the upper surface of the cover plate 107. The end of the telescopic rod of the swinging drive electric cylinder 143 is movably connected to the circumferential edge position of the swinging drive disc 144. The telescopic cylinder of the swinging drive electric cylinder 143 is movably connected to the cover plate 107. A lifting electric cylinder 119 is fixedly installed on the swinging drive disc 144. The end of the telescopic rod of the lifting electric cylinder 119 passes through the swinging arc-shaped through hole 145 and is fixedly fitted with the dust-proof seal cover 139.

[0030] The center sliding column 122 is slidably inserted into the axial center position of the spline pipe column 137. The top end of the center sliding column 122 penetrates above the swing drive disc 144, and the bottom end of the center sliding column 122 penetrates below the blanking push rod sliding seat 129. A connecting rod mounting seat 126 is slidably sleeved on the circumferential surface of the center sliding column 122 below the blanking push rod sliding seat 129. The connecting rod mounting seat 126 is movably connected to one end of each blanking push rod 128 close to the axis of the base plate 135 by a connecting rod 127. A bottom support circular plate 110 is fixedly installed at the bottom end of the center sliding column 122. At the circumferential position of the upper surface of the bottom support circular plate 110, a plug column 146 with the same number as the through holes opened on the base plate 135 is fixedly installed. The top end of each plug column 146 is rotatably installed with a counterweight 147, and the counterweight 147 is in abutting cooperation with the bottom end of the driving polishing rod 131. Among them, the plug column 146 can be inserted into the Luer connector of the high borosilicate micro syringe 132. The cover plate 107 is hoisted and fixed below the top plate 106 through the hoisting column 104. Two hoisting slide rods 102 are also fixedly installed on the top plate 106. A blanking placement ring frame 103 is slidably installed on the two hoisting slide rods 102. A plurality of U-shaped grooves with the same shape as the U-shaped groove clamping plate 133 are opened on the blanking placement ring frame 103 for storing the high borosilicate micro syringe 132 (wherein the blanking placement ring frame 103 is magnetically matched with the top plate 106, and there is friction between the blanking placement ring frame 103 and the hoisting slide rods 102, and this friction can support the weight of all the high borosilicate micro syringes 132 placed on the blanking placement ring frame 103). The top plate 106 is fixedly installed above the base 105 through the support column 101. An operation ring plate 109 concentrically matched with the bottom support circular plate 110 is also fixedly installed above the base 105 in an overhead manner. Among them, the bottom support circular plate 110 is slidably arranged inside the operation ring plate 109. An arc-shaped frame 111 is fixedly installed on the lower surface of the operation ring plate 109. A gearbox support 118 is fixedly installed on the arc-shaped frame 111. A gearbox 113 is fixedly installed on the gearbox support 118. Among them, a spring is arranged between the bottom support circular plate 110 and the base 105 to provide an upward restoring force for the bottom support circular plate 110.

[0031] An input gear 117 is fixedly mounted on the input shaft of the gearbox 113, and an output gear 114 is fixedly mounted on the output shaft of the gearbox 113, wherein an active rack 112 and a passive rack 115 are slidably mounted on the gearbox bracket 118, wherein the active rack 112 is meshed with the input gear 117 for transmission, and the passive rack 115 is meshed with the output gear 114 for transmission, wherein the top end of the active rack 112 is in contact with the lower surface of the bottom support circular plate 110. A swing contact plate bracket 121 is fixedly mounted on the upper surface of the cover plate 107, and a swing contact plate 120 is movably mounted on the swing contact plate bracket 121, wherein one end of the swing contact plate 120 overlaps the top end of the central sliding column 122, and the other end of the swing contact plate 120 covers the top of the arc-shaped material reduction port 123, and the end of the swing contact plate 120 away from the central sliding column 122 is in contact with the housing of the polishing drive motor 142. A material unloading slide bar 116 is also slidably mounted on the operating ring plate 109, and a material unloading toggle frame 124 is fixedly mounted on the top of the material unloading slide bar 116. The end of the material unloading toggle frame 124 away from the material unloading slide bar 116 is slidably mounted on the central sliding column 122, and the material unloading toggle frame 124 is fixedly matched with the connecting rod mounting seat 126, and the bottom end of the material unloading slide bar 116 is fixedly matched with the passive rack 115. A tension spring 125 is sleeved on the material unloading slide bar 116, and both ends of the tension spring 125 are fixedly matched with the material unloading toggle frame 124 and the operating ring plate 109.

[0032] The working principle of the walnut shell powder used in the micro-nano polishing system for the inner hole of the borosilicate micro-syringe disclosed in the present invention is as follows: the walnut shell powder is poured into the powder placing barrel 108 through the arc-shaped material reduction port 123, and then the walnut shell powder will fall into the powder placing barrel 108 (a vibrator is provided on the powder placing barrel 108 to increase the fluidity of the walnut shell powder). When in use, the wing support of the borosilicate micro-syringe 132 is inserted between the U-shaped groove clamping plate 133 and the base plate 135 (the U-shaped groove clamping plate 133 clamps the wing support of the borosilicate micro-syringe 132 on the lower surface of the base plate 135 under the elastic force of the clamping elastic component 136). This process requires pressing the bottom support circular plate 110 to flow out the space where the borosilicate micro-syringe 132 is placed. Then, the bottom supporting circular plate 110 is loosened (the spring supporting the bottom supporting circular plate 110 is no longer compressed), and the blocking column 146 on the bottom supporting circular plate 110 is inserted into the Luer connector corresponding to the high borosilicate microsyringe 132 to seal the bottom of the high borosilicate microsyringe 132.

[0033] Control the swing drive electric cylinder 143. The telescopic rod of the swing drive electric cylinder 143 drives the swing drive disc 144 to rotate by an angle, so that the spline pipe column 137 drives the through hole on the plugging disc 134 to align with the through hole of the base disc 135. At this time, the walnut skin powder in the powder placement bucket 108 will fall into the high borosilicate micro syringe 132. At this time, the polishing rod 131 is just located directly above the corresponding high borosilicate micro syringe 132. Then control the telescopic rod of the lifting electric cylinder 119 to drive the dust-proof seal cover 139 to move downward, and the polishing drive seat 138 on the dust-proof seal cover 139 moves synchronously. Since the polishing rod 131 is installed on the polishing drive seat 138, all the polishing rods 131 will move downward and insert into the high borosilicate micro syringe 132. The entire insertion process requires starting the polishing drive motor 142. The polishing drive motor 142 drives the polishing execution gear 140 to rotate, and drives all the polishing execution gears 140 to rotate through the linkage gear ring 141. The polishing execution gear 140 drives the corresponding polishing rod 131 to rotate (when the walnut skin powder has fallen into the high borosilicate micro syringe 132, in order to better insert into the high borosilicate micro syringe 132, the polishing rod 131 needs to rotate forward). When the polishing rod 131 is completely inserted into the high borosilicate micro syringe 132, start the vibrator on the powder placement bucket 108. The polishing rod 131 will drive the walnut skin powder inside the high borosilicate micro syringe 132 to rotate, and then the walnut skin powder will rub against the inner wall of the high borosilicate micro syringe 132. During this process, since the walnut skin powder is in a rotating state, the walnut skin powder will be subjected to a centrifugal force towards the inner wall of the high borosilicate micro syringe 132, which is used to increase the contact pressure between the walnut skin powder and the inner wall of the high borosilicate micro syringe 132, thereby improving the polishing efficiency.

[0034] When the inner wall of the borosilicate micro-injector 132 is polished, the telescopic rod of the lifting electric cylinder 119 is controlled to retract, driving all the driving polishing rods 131 to be withdrawn from the borosilicate micro-injector 132. Before the dustproof sealing cover 139 moves to the topmost position, the lifting electric cylinder 119 is stopped, and the telescopic rod of the swing driving electric cylinder 143 is controlled to drive the swing driving disk 144 to swing to the initial position (at this time, the through holes on the blocking disk 134 and the base disk 135 will be staggered to achieve sealing and prevent the walnut shell powder in the powder placement barrel 108 from flowing out). At this time, the telescopic rod of the lifting electric cylinder 119 is controlled to continue to retract. At this time, the polishing The shell of the driving motor 142 will contact the swinging contact plate 120, and then drive the swinging contact plate 120 to swing on the swinging contact plate bracket 121. Under the action of the lever, the swinging contact plate 120 will push the central sliding column 122 to move downward, and the central sliding column 122 drives the bottom supporting circular plate 110 to move downward. This process will cause the blocking column 146 on the bottom supporting circular plate 110 to separate (withdraw) from the Luer connector of the high borosilicate microsyringe 132, and then the walnut shell powder inside the high borosilicate microsyringe 132 will flow out of the high borosilicate microsyringe 132 (need to be recycled on a tray for easy reuse). Then the central sliding column 122 continues to move downward, and when the bottom supporting circular plate 110 contacts the active rack 112, it will drive the active rack 112 to move downward, and the active rack 112 will drive the input gear 117 to rotate, and then drive the input shaft of the gearbox 113 to rotate, and the output shaft of the gearbox 113 will drive the output gear 114 to rotate, and the output gear 114 drives the passive rack 115 to move upward in a straight line, and then the passive rack 115 drives the unloading slide bar 116 to move upward, and the unloading slide bar 116 drives the unloading toggle frame 124 to overcome the pulling force of the tension spring 125 and move upward, and the unloading toggle frame 124 drives the connecting rod mounting seat 126 to slide upward on the central sliding column 122, and the connecting rod mounting seat 126 drives the unloading push rod 128 to slide on the unloading push rod sliding seat 129 through the connecting rod 127 (from the unloading push rod sliding seat 129 to the unloading push rod sliding seat 129 to slide). The center of the circle of the seat 129 slides outward), and then drives the blanking push plate 130 to move synchronously, and the blanking push plate 130 pushes the high borosilicate micro-injection syringe 132 outward, so that the wing support of the high borosilicate micro-injection syringe 132 is separated from the U-shaped groove clamping plate 133 and the base plate 135. Before this, it is necessary to move the blanking placement ring frame 103 to the lowest position of the lifting slide bar 102, so that the blanking placement ring frame 103 is slightly lower than the position of the U-shaped groove clamping plate 133. When the wing support of the high borosilicate micro-injection syringe 132 is separated from the U-shaped groove clamping plate 133, it will move to the blanking placement ring frame 103 (from the U-shaped groove on the high borosilicate micro-injection syringe 132 to the U-shaped groove on the blanking placement ring frame 103), and then pull the blanking placement ring frame 103 to move to the top of the lifting slide bar 102, which is convenient for subsequent removal.At this time, the wing support of the next batch of high borosilicate micro syringes 132 can be inserted between the U-shaped groove clamping plate 133 and the base plate 135 for polishing.

Claims

1. A walnut peel powder is used in a micro-nano polishing system for the inner hole of a high-borosilicate micro syringe, characterized in that: It includes a powder placement barrel (108). A base plate (135) is fixedly and sealedly installed at the bottom of the powder placement barrel (108). A plurality of through holes are equidistantly and circularly arrayed on the base plate (135). A U-shaped groove clamping plate (133) is correspondingly arranged below each through hole. A gap is left between the U-shaped groove clamping plate (133) and the lower surface of the base plate (135), and this gap can allow the wing support on the high borosilicate micro syringe (132) to be inserted. A spline tube column (137) is rotatably installed at the axial center position of the upper surface of the base plate (135). A sealing plate (134) is rotatably installed on the upper surface of the base plate (135). Through holes with the same shape and quantity as those on the base plate (135) are opened on the sealing plate (134). A driving polishing rod (131) is arranged directly above the axis of each through hole opened on the base plate (135). The driving polishing rod (131) can be inserted into the high borosilicate micro syringe (132). A plurality of paddles are arranged on the high borosilicate micro syringe (132) for driving the walnut shell powder to rotate inside the high borosilicate micro syringe (132). A blanking push rod sliding seat (129) is fixedly installed at the center position of the lower surface of the base plate (135). Along the radial direction of its own lower surface, blanking push rods (128) with the same quantity as the through holes opened on the base plate (135) are slidably installed. One end of each blanking push rod (128) away from the axis of the base plate (135) is fixedly installed with a blanking push plate (130). The blanking push plate (130) is used to push the wing support on the high borosilicate micro syringe (132) away from between the U-shaped groove clamping plate (133) and the base plate (135).

2. A micronano polishing system for the inner hole of a high borosilicate micro syringe using walnut peel powder as claimed in claim 1, wherein: Each U-shaped groove clamping plate (133) is elastically installed on the circumferential surface of the blanking push rod sliding seat (129) through a corresponding clamping elastic component (136). And the U-shaped groove clamping plate (133) is in sliding fit with the circumferential surface of the blanking push rod sliding seat (129). The sliding fit direction between the U-shaped groove clamping plate (133) and the circumferential surface of the blanking push rod sliding seat (129) is parallel to the axis of the U-shaped groove clamping plate (133), and is used to make the U-shaped groove clamping plate (133) move towards the base plate (135).

3. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder according to claim 2, characterized in that: The plugging disc (134) is fixedly installed on the spline pipe column (137). A polishing drive seat (138) is sleeved on the circumferential surface of the spline pipe column (137) in a spline-sliding manner. On the circumferential position of the upper surface of the polishing drive seat (138), polishing execution gears (140) with the same number as the through holes opened on the base disc (135) are rotatably installed. The top end of each polishing execution gear (140) is fixedly fitted with the polishing rod (131) evenly to drive the polishing rod (131) to rotate. A linkage gear ring (141) that meshes with all the polishing execution gears (140) is also rotatably installed on the polishing drive seat (138) to synchronize the rotation of all the polishing rods (131). A dust-proof sealing cover (139) is fixedly installed on the polishing drive seat (138). The dust-proof sealing cover (139) is used to wrap the polishing execution gears (140) and the linkage gear ring (141) on the polishing drive seat (138). A polishing drive motor (142) is fixedly installed on the dust-proof sealing cover (139). The output shaft of the polishing drive motor (142) is fixedly fitted with one of the polishing execution gears (140).

4. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut shell powder as claimed in claim 3, characterized in that: A cover plate (107) is fixedly and sealedly installed on the top of the powder placement barrel (108). An arc-shaped material reduction port (123) and a swinging arc-shaped through hole (145) are opened on the cover plate (107). A swinging drive disc (144) is rotatably installed at the central position of the upper surface of the cover plate (107). The top end of the spline pipe column (137) passes through the cover plate (107) and is fixedly fitted with the swinging drive disc (144). The spline pipe column (137) is rotatably fitted with the cover plate (107). A swinging drive electric cylinder (143) is also movably connected to the upper surface of the cover plate (107). The end of the telescopic rod of the swinging drive electric cylinder (143) is movably connected to the circumferential edge position of the swinging drive disc (144). The telescopic cylinder of the swinging drive electric cylinder (143) is movably connected to the cover plate (107). A lifting electric cylinder (119) is fixedly installed on the swinging drive disc (144). The end of the telescopic rod of the lifting electric cylinder (119) passes through the swinging arc-shaped through hole (145) and is fixedly fitted with the dust-proof sealing cover (139).

5. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder as claimed in claim 4, characterized in that: The center sliding column (122) is slidably inserted into the axial center position of the spline pipe column (137). The top end of the center sliding column (122) penetrates above the swing drive disk (144), and the bottom end of the center sliding column (122) penetrates below the blanking push rod sliding seat (129). A connecting rod mounting seat (126) is slidably sleeved on the circumferential surface of the center sliding column (122) below the blanking push rod sliding seat (129). The connecting rod mounting seat (126) is movably connected to one end of each blanking push rod (128) close to the axis of the base disk (135) through a connecting rod (127). A bottom support circular plate (110) is fixedly installed at the bottom end of the center sliding column (122). Plug columns (146) with the same number as the through holes opened on the base disk (135) are fixedly installed at the circumferential position of the upper surface of the bottom support circular plate (110). A counterweight (147) is rotatably installed at the top end of each plug column (146). The counterweight (147) is in contact and cooperation with the bottom end of the driving polishing rod (131). Among them, the plug column (146) can be inserted into the Luer connector of the borosilicate micro syringe (132).

6. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder as claimed in claim 5, characterized in that: The cover plate (107) is hoisted and fixed below the top plate (106) through the hoisting column (104). Two hoisting sliding rods (102) are also fixedly installed on the top plate (106). A blanking placement ring frame (103) is slidably installed on the two hoisting sliding rods (102). A plurality of U-shaped grooves with the same shape as the U-shaped groove clamping plate (133) are opened on the blanking placement ring frame (103) for storing the borosilicate micro syringe (132).

7. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder as claimed in claim 6, wherein: The top plate (106) is fixedly installed above the base (105) through the support column (101) in an overhead manner. An operation ring plate (109) concentrically matched with the bottom support circular plate (110) is also fixedly installed on the base (105) in an overhead manner. Among them, the bottom support circular plate (110) is slidably arranged inside the operation ring plate (109). An arch-shaped frame (111) is fixedly installed on the lower surface of the operation ring plate (109). A gearbox support (118) is fixedly installed on the arch-shaped frame (111). A gearbox (113) is fixedly installed on the gearbox support (118). Among them, a spring is arranged between the bottom support circular plate (110) and the base (105) to provide an upward restoring force for the bottom support circular plate (110).

8. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut shell powder, characterized in that: An input gear (117) is fixedly installed on the input shaft of the gearbox (113). An output gear (114) is fixedly installed on the output shaft of the gearbox (113). Among them, a driving rack (112) and a driven rack (115) are slidably installed on the gearbox support (118). The driving rack (112) is in meshing transmission with the input gear (117), and the driven rack (115) is in meshing transmission with the output gear (114). Among them, the top end of the driving rack (112) is in contact and cooperation with the lower surface of the bottom support circular plate (110).

9. A micro-nano polishing system for the inner hole of a high borosilicate micro syringe using walnut shell powder as claimed in claim 8, characterized in that: A swing contact plate bracket (121) is fixedly mounted on the upper surface of the cover plate (107), and a swing contact plate (120) is movably mounted on the swing contact plate bracket (121). One end of the swing contact plate (120) overlaps the top of the central sliding column (122), and the other end of the swing contact plate (120) covers the top of the arc-shaped material reduction port (123). The end of the swing contact plate (120) away from the central sliding column (122) contacts and cooperates with the housing of the polishing drive motor (142).

10. A micro-nano polishing system for the inner hole of a high-borosilicate micro syringe using walnut peel powder as claimed in claim 9, characterized in that: A material unloading slide bar (116) is also slidably mounted on the operating ring plate (109), a material unloading toggle frame (124) is fixedly mounted on the top of the material unloading slide bar (116), one end of the material unloading toggle frame (124) away from the material unloading slide bar (116) is slidably sleeved on the central sliding column (122), and the material unloading toggle frame (124) is fixedly matched with the connecting rod mounting seat (126), the bottom end of the material unloading slide bar (116) is fixedly matched with the passive rack (115), and a tension spring (125) is sleeved on the material unloading slide bar (116), and both ends of the tension spring (125) are fixedly matched with the material unloading toggle frame (124) and the operating ring plate (109).

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