A device for displacing silicone oil in an inlaid injection needle

Abstract

The utility model relates to a kind of inlay injection needle displacement silicon oil device, including displacement support, the displacement support is equipped with displacement crossbeam, horizontal displacement guide rail is equipped on the displacement crossbeam, displacement sliding block is equipped on the displacement guide rail, displacement sliding block is equipped on the displacement sliding block, displacement crossbeam is equipped with the displacement cylinder parallel with displacement guide rail, the piston rod of the displacement cylinder is connected with the displacement sliding block, vertical displacement lifting guide rail is equipped on the displacement sliding block, displacement lifting guide rail is equipped with the sliding fit displacement cylinder support, two groups of displacement pinch cylinder are equipped on the displacement cylinder support, displacement lifting cylinder is equipped on the displacement sliding block of displacement lifting guide rail upper end, the piston rod of the displacement lifting cylinder is connected with the displacement cylinder support by hinged lever.

Description

Technical Field

[0001] This utility model relates to the field of injection needle manufacturing technology, and in particular to a device for embedding and shifting silicone oil onto an injection needle. Background Technology

[0002] An embedded injection needle includes a needle hub, a needle tube, and a sheath. The needle tube and needle hub are riveted together to form a riveting needle. The riveting needle is installed inside the sheath to complete the assembly of the embedded injection needle. Before assembly, the riveting needle needs to be coated with silicone oil. Siliconization of the needle tip is a key step in medical device manufacturing. Its purpose is to enhance the lubrication of the needle tip, promote smooth puncture, thereby reducing patient discomfort during the medical process and effectively protecting the needle tip from rapid wear or blockage. In the prior art, silicone oil is usually applied to the needle tip manually, which increases the labor input. Furthermore, manual application of silicone oil to the injection needle tip can easily lead to accidental injury if the operation is not careful, resulting in low safety. Utility Model Content

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a device for embedding injection needles and applying silicone oil. To achieve the above objectives, the technical solution of this utility model is to design a device for displacing silicone oil onto an embedded injection needle, comprising a displacement mechanism. The displacement mechanism includes a displacement bracket, a displacement horizontal plate, a horizontal displacement guide rail, a displacement slider, a displacement plate, and a displacement cylinder arranged parallel to the displacement guide rail on the displacement horizontal plate. The piston rod of the displacement cylinder is connected to the displacement plate. A vertically arranged displacement lifting guide rail is provided on the displacement lifting guide rail, and a slidingly fitted displacement cylinder support is provided on the displacement cylinder support. Two sets of displacement finger clamping cylinders are provided on the displacement plate at the upper end of the displacement lifting guide rail. A displacement lifting cylinder is provided on the displacement plate, and the piston rod of the displacement lifting cylinder is connected to the displacement cylinder support via a hinge.

[0004] In a further preferred embodiment, the displacement support is provided with a set of transition carriers.

[0005] A further preferred technical solution includes one set of a shifting finger cylinder and another set of a shifting claw cylinder and claws, with a pair of claws symmetrically arranged, and a set of open claw grooves respectively provided on a pair of close inner surfaces of the claws.

[0006] A further preferred technical solution includes a silicone oil application mechanism on the second frame between the two sets of shifting finger cylinders. The silicone oil application mechanism includes an indexer with a pulley at its input end. A drive motor is mounted on the second frame on one side of the indexer. A pulley is mounted on the output shaft of the drive motor, and a transmission belt is mounted on the two pulleys. A power rotor is mounted on the output end of the indexer. The power rotor has at least four platforms arranged in a ring around an axis. Each platform has a guide rail arranged parallel to the axis. A slider is mounted on the guide rail. A locking plate is mounted on the side of the slider away from the power rotor. Several equally spaced slots are opened on a side of the locking plate parallel to the axis. Each slot includes at least a first opening on the side and a first latch connected to the first opening. The first opening allows the needle holder to be placed or removed arbitrarily along the axis of the needle holder. The first latch can be locked onto the outer edge of the needle holder. A silicone oil application carrier is provided on the platform below each slot.

[0007] A further preferred technical solution is that each slider is provided with a push rod on the side near the indexer, and a bearing is provided on the highest position of the flange of the indexer corresponding to the push rod. During the rotation, the push rod makes rotational contact with the outer surface of the bearing. A return spring is provided on the platform at the lower end of each slider. One end of the return spring is connected to the slider, and the other end is fixed on the platform.

[0008] A further preferred technical solution includes a lifting oil tank located below the power rotor, an oil tank hole on the second frame, an oil tank support vertically positioned inside the oil tank hole, an oil tank guide rail vertically positioned on the oil tank support, an oil tank slider on the oil tank guide rail, the oil tank slider being fixed to the lifting oil tank, an oil tank motor located at the bottom of the second frame on one side of the lifting oil tank, a rocker arm on the drive shaft of the oil tank motor, and the rocker arm being hinged to the oil tank slider.

[0009] The advantages and beneficial effects of this utility model are as follows: This utility model applies silicone oil while the riveting pin is being moved, integrating the two process steps of moving and applying silicone oil, which improves work efficiency and has a higher degree of automation. The silicone oil application mechanism automatically positions the needle and applies silicone oil, resulting in high efficiency and even application of silicone oil. Attached Figure Description

[0010] Figure 1 This is an isometric view of an embodiment of the present invention; Figure 2 The axial side of the displacement mechanism of this utility model Figure 1 ; Figure 3The axial side of the displacement mechanism of this utility model Figure 2 ; Figure 4 Axonometric measurement of the silicone oil application mechanism of this utility model Figure 1 ; Figure 5 Axonometric measurement of the silicone oil application mechanism of this utility model Figure 2 ; In the diagram: 100, First frame; 101, First rotary table; 102, First vehicle; 200. Second frame; 201. Second rotary table; 202. Second vehicle; 300. Shifting mechanism; 301. Shifting and lifting cylinder; 302. Shifting plate; 303. Shifting and lifting guide rail; 304. Shifting guide rail; 305. Shifting cylinder; 306. Shifting cylinder support; 307. Shifting bracket; 308. Shifting finger clamping cylinder; 400. Silicone oil application mechanism; 401. Drive motor; 402. Indexer; 403. Bearing; 404. Pallet; 405. Power rotary head; 406. Silicone oil application carrier; 500, oil tank hole; 501, lifting oil tank; 502, oil tank bracket; 503, rocker arm; 504, oil tank motor. Detailed Implementation

[0011] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0012] like Figure 1-5As shown, a device for applying silicone oil to an embedded injection needle is mounted on a second frame 200 outside a second rotary table 201. The device includes a shifting mechanism 300, which includes a shifting bracket 307. The shifting bracket 307 has a shifting cross plate, and the shifting cross plate has a horizontal shifting guide rail 304. The shifting guide rail 304 has a shifting slider, and the shifting slider has a shifting plate 302. The shifting cross plate has a shifting cylinder 305 arranged parallel to the shifting guide rail 304. The piston rod of the shifting cylinder 305 is connected to the shifting plate 302. The shifting plate 302 has... A vertically arranged shifting and lifting guide rail 303 is provided with a slidingly fitted shifting cylinder support 306. The shifting cylinder support 306 is provided with two sets of shifting finger clamping cylinders 308. The shifting plate 302 at the upper end of the shifting and lifting guide rail 303 is provided with a shifting and lifting cylinder 301. The piston rod of the shifting and lifting cylinder 301 is connected to the shifting cylinder support 306 through a hinge. A set of transition carriers is provided on the shifting bracket. The shifting mechanism 300 moves the riveting pin of the first rotary table 101 on the first frame 100 to the transition carrier, and then the transition carrier moves the pin to the second rotary table 201.

[0013] In one embodiment, one set consists of a shifting finger cylinder and the other set consists of a shifting claw cylinder and claws. A pair of claws are symmetrically arranged, and a pair of open claw grooves are respectively provided on a pair of close inner surfaces of the claws. The pair of claw grooves clamp the needle seat from both sides of the needle seat.

[0014] When the displacement cylinder 305 is in the retracted state, a set of displacement clamping cylinders 308 are located above the first rotary table 101. A displacement lifting cylinder 307 drives the displacement cylinder support 306 to rest on the first carrier 102 of the first rotary table 101. Then, the displacement clamping cylinders 308 clamp the rivet pin from the first carrier 102. The displacement lifting cylinder 307 then lifts the rivet pin off the first carrier 102. 05. When the action forms a telescopic state, the shift plate 302 drives the shifting finger cylinder 308 to move onto a set of transition carriers. At the same time, another set of finger cylinders moves the rivet pin on the transition carrier to above the second carrier 202 of the second rotary table 201. Then, the shift lifting cylinder 301 drives the shift cylinder support 306 to descend. Then, the two sets of shifting finger cylinders 308 are respectively above the transition carrier and the second carrier 202 of the second rotary table 201, and place the rivet pin on the transition carrier and the second carrier 202.

[0015] A silicone oil application mechanism 400 is also provided on the second frame 200 between the two sets of shifting finger cylinders 308. The silicone oil application mechanism 400 includes an indexer 402. The input end of the indexer 402 is provided with a pulley. A drive motor 401 is provided on the second frame 200 on one side of the indexer. The output shaft of the drive motor 401 is provided with a pulley, and two pulleys are provided with a transmission belt. A power rotary head 405 is installed at the output end of the indexer 402. The power rotary head 405 has at least four platforms arranged in a ring around an axis. Each platform is provided with a guide rail arranged parallel to the axis. A slider is provided on the guide rail. A clamping plate 404 is provided on the side of the slider away from the power rotary head. The card plate 404 has several equally spaced slots on one side parallel to the axis. Each slot includes at least a first opening on the side and a first latch connected to the first opening. The first opening allows the needle holder to be placed or removed arbitrarily along the axis of the needle holder. The first latch can be locked onto the outer edge of the needle holder. The first latch can restrict the needle holder to the card plate 404. A silicone oil carrier 406 is provided on the platform below each slot. The riveting needle is moved by a moving mechanism to place the needle holder of the riveting needle onto the silicone oil carrier 406 below through the first opening. Then the card plate 405 moves along the guide rail to lock the first latch onto the outer edge of the needle holder.

[0016] The rivet pin is placed on the upper silicone oil carrier 406 by a shifting mechanism. Between the two sets of shifting finger cylinders of the shifting mechanism 300, there is also a set of shifting claw cylinders. In this way, the rivet pin moves from the first carrier to the transition carrier, then from the transition carrier to the second carrier of the upper silicone oil mechanism, and then from the upper silicone oil carrier of the upper silicone oil mechanism to the second carrier.

[0017] Each slider is provided with a push rod on the side near the indexer. A bearing 403 is provided on the highest position of the flange of the indexer 402 in the vertical direction, corresponding to the push rod. The push rod makes rotational contact with the outer surface of the bearing 403 during rotation.

[0018] A return spring is provided on the platform at the lower end of each slider. One end of the return spring is connected to the slider, and the other end is fixed on the platform. When the corresponding push rod contacts the bearing, the bearing abuts against the push rod and pushes the clamping plate 404 to move along the guide rail, so that the first opening on the clamping plate 404 is located directly above the upper silicone oil carrier 406. The riveting needle is put into the upper silicone oil carrier 406 through the first opening via the moving mechanism. The outline of the first opening is adapted to the needle seat and is larger than the outer outline of the needle seat, so that the needle seat can be freely put into the needle seat through the first opening. After the corresponding push rod separates from the bearing, the clamping plate moves in the opposite direction along the guide rail under the action of the return spring, so that the first clamping opening is engaged with the outer edge of the needle seat, limiting the needle seat, and causing the riveting needle to rotate with the power rotating head 405.

[0019] Below the power rotary head, there is a lifting oil tank 501. The second frame has an oil tank hole 500. The oil tank hole 500 has an oil tank support 502 arranged vertically inside. The oil tank support 502 has an oil tank guide rail arranged vertically. The oil tank guide rail has an oil tank slider. The oil tank slider is fixed to the lifting oil tank 501. The bottom of the second frame on one side of the lifting oil tank 501 has an oil tank motor 504. The drive shaft of the oil tank motor 504 has a rocker arm 503. The rocker arm 503 is hinged to the oil tank slider.

[0020] When the riveting needle rotates to its lowest position with the power rotor, the lifting oil groove 501 rises to its highest position, allowing the tip of the injection needle to be inserted into the lifting oil groove 501 for silicone oil application. Then, as the riveting needle rotates mechanically with the power rotor, the lifting oil groove falls to prevent interference with the injection needle.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for attaching silicone oil to an embedded injection needle, characterized in that, The device includes a displacement mechanism comprising a displacement bracket, a displacement cross plate, a horizontal displacement guide rail, a displacement slider, a displacement plate, a displacement cylinder parallel to the displacement guide rail, a piston rod connected to the displacement plate, a vertically arranged displacement lifting guide rail, a sliding displacement cylinder support, two sets of displacement finger-clamping cylinders on the displacement cylinder support, and a displacement lifting cylinder on the displacement plate at the upper end of the displacement lifting guide rail. The piston rod of the displacement lifting cylinder is connected to the displacement cylinder support via a hinge.

2. The device for applying silicone oil to an embedded injection needle according to claim 1, characterized in that, The displacement support is equipped with a set of transition carriers.

3. The device for applying silicone oil to an embedded injection needle according to claim 1, characterized in that, One set consists of a shifting finger cylinder and the other set consists of a shifting claw cylinder and a claw. A pair of claws are symmetrically arranged, and a set of open claw grooves are provided on a pair of close inner surfaces of the claws.

4. The device for applying silicone oil to an embedded injection needle according to claim 1, characterized in that, A silicone oil application mechanism is also provided on the second frame between the two sets of displacement finger cylinders. The silicone oil application mechanism includes an indexer. The input end of the indexer is provided with a pulley. A drive motor is provided on the second frame on one side of the indexer. The output shaft of the drive motor is provided with a pulley. Two pulleys are provided with a transmission belt. A power rotor is installed at the output end of the indexer. The power rotor has at least four platforms arranged in a ring around the axis. Each platform is provided with a guide rail arranged parallel to the axis. A slider is provided on the guide rail. A locking plate is provided on the side of the slider away from the power rotor. A plurality of equally spaced slots are opened on a side parallel to the axis on the locking plate. Each slot includes at least a first opening opened on the side and a first latch connected to the first opening. The first opening allows the needle seat to be placed or removed arbitrarily along the axial direction of the needle seat. The first latch can be locked onto the outer edge of the needle seat. A silicone oil application carrier is provided on the platform below each slot.

5. The device for applying silicone oil to an embedded injection needle according to claim 4, characterized in that, Each slider is provided with a push rod on the side near the indexer. A bearing is provided on the highest position of the flange of the indexer corresponding to the push rod. During the rotation, the push rod makes rotational contact with the outer surface of the bearing. A return spring is provided on the platform at the lower end of each slider. One end of the return spring is connected to the slider, and the other end is fixed on the platform.

6. The device for applying silicone oil to an embedded injection needle according to claim 5, characterized in that, Below the power rotor, there is a lifting oil tank. The second frame has an oil tank hole. The oil tank hole contains a vertically oriented oil tank support. The oil tank support has a vertically oriented oil tank guide rail. The oil tank guide rail has an oil tank slider. The oil tank slider is fixed to the lifting oil tank. The bottom of the second frame on one side of the lifting oil tank has an oil tank motor. The drive shaft of the oil tank motor has a rocker arm. The rocker arm is hinged to the oil tank slider.

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