CN106081473B

CN106081473B - Intravenous needle wing piece feed mechanism

Info

Publication number: CN106081473B
Application number: CN201610619130.2A
Authority: CN
Inventors: 梁启明
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2021-03-09
Anticipated expiration: 2036-07-29
Also published as: CN106081473A

Abstract

The invention provides a vein needle fin piece feeding mechanism which comprises a needle handle main board for conveying a vein needle fin piece, a pushing assembly for pushing the vein needle fin piece, a feeding seat for guiding and conveying the vein needle fin piece in a rotating manner, a guiding device for conveying the vein needle fin piece downwards, and a vein needle jig for receiving the vein needle conveyed down from the guiding device; the pushing assembly can push the vein needle fin conveyed to the bottom end of the needle handle main board along the needle handle main board into the feeding seat, and then convey the vein needle fin in the feeding seat downwards into the vein needle jig through the guide device. The invention can effectively ensure that the transportation of the vein needle wing pieces is finished orderly, accurately and efficiently; and needle handle mainboard and slot I are the slope form setting to material loading seat can carry out the rotation direction and control, realizes shortening the stroke distance of carrying the vein needle fin effectively and reduced the whole required size that occupies space of this vein needle fin unloader.

Description

Intravenous needle wing piece feed mechanism

Technical Field

The invention relates to the technical field of intravenous needle fin assembling equipment in medical instruments, in particular to an intravenous needle fin feeding mechanism.

Background

With the improvement of the social living standard, infusion is more widely applied to clinical cases as an important treatment mode. The infusion is a large dose (more than 100ml per administration) of injection infused into the body by intravenous drip, and the infusion is continuously and stably infused into the vein by adjusting the infusion drip speed through an infusion apparatus in the infusion process so as to supplement body fluid, electrolyte or provide nutrient substances.

In the medical infusion industry, disposable infusion sets have been widely used due to the advantages of convenience in use, safety and sanitation. The infusion device does not need to be disinfected during infusion, and a user only needs to unpack the package to connect the infusion device and the intravenous needle together. However, the unclean infusion apparatus can not only weaken the drug effect of the drug, but also possibly cause cross infection, thereby greatly damaging the health of the patient. Therefore, the method has important significance in ensuring the cleanness of the infusion set.

Intravenous needles (also known as plastic needles) are an important component of infusion sets for puncturing the veins of patients and introducing medical fluids into the veins. The existing intravenous needle comprises a needle base, a steel needle and a single blade. For example, chinese patent No. [ patent No. ZL 200820018844.9; the grant publication No. CN201164629Y discloses a venous needle, which comprises a needle body, wherein the front end of the needle body is a needle point inclined plane, a needle handle is arranged on one side of the rear end of the needle body, and the needle handle is positioned on the left side of the rear end of the needle body when the needle point inclined plane faces upwards.

In the prior art, the handle of the vein needle can also adopt a double-blade type, for example, Chinese patent (patent number ZL 200520086804.4; the patent publication No. CN2829755Y discloses a disposable safety intravenous needle, which comprises a needle seat, a needle tip, blades and a needle sleeve, wherein the blades are positioned on two sides of the needle seat.

In order to ensure that the medical instrument (particularly the vein needle wing panel device or equipment used for assembling or assembling the invention) is not manually assembled as much as possible, and the greatest disadvantage of manual operation is that the medical instrument is easy to be attached with germs, so that the sanitary requirement of the product is not qualified; and the assembly speed of manual operation is also low. The medical instrument assembling machine adopts an automatic control mode to carry out automatic assembly, does not pollute products, can ensure that the sanitary index of the products conforms to the national standard, and has higher practical value.

The medical device is usually composed of a plurality of components, and some components need to be installed according to a certain direction, so that deviation can not occur, and the assembled medical device can meet the requirements. However, the mechanism for feeding and transporting the components is generally not provided with a direction-adjusting mechanism for the components, and even if the direction-adjusting mechanism is provided, the direction of the individual components may be incorrect. If the assembly is performed in such an orientation, the product cannot meet the set requirements, and the product is discarded.

For example, chinese patent No. ZL200720113479.5, issued publication No. CN201076644Y discloses an assembling machine for a medical plastic needle assembly, which solves the problems that the existing plastic needles are assembled manually, the assembling mode is inefficient, and the plastic needle assembly is easily contaminated. The device comprises a rotating shaft connected with a motor shaft, a rotating disc which can rotate along with the rotating shaft is fixed on the rotating shaft, a plurality of clamps for fixing workpieces are uniformly distributed on the rotating disc, and three feeders, namely a plastic needle feeder, a filter cap feeder and a sheath feeder, are arranged around the rotating disc.

Obviously, the device also does not disclose a structure for adjusting the mounting direction of the component. The plastic needles in the prior art are generally conveyed by two parallel rails, and although two blocking pieces in the middle of the plastic needle can ensure that the plastic needles are conveyed vertically, the side tubes of the plastic needles are difficult to position, and the side tubes face to the conveying direction or back to the conveying direction, which easily causes the situation that the directions of the plastic needles in a row (i.e. intravenous needle wings) are opposite.

Further, chinese patent No. ZL200710070560.4, CN101152586A, discloses a process and an assembly machine for assembling a plastic needle assembly for medical use, which respectively place a plastic needle, a filter cap, and a sheath in respective feeders, each feeder arranges the accessories placed therein in an array and then sequentially arranges the accessories on respective conveying rails arranged around a turntable, and mounts a roll of filter paper on a filter punching device which is located in the filter cap on the filter cap conveying rail when the filter is punched. Although, it has smooth operation, stable operation, low noise and high automation degree during working. However, the positions of the air outlets of the plastic pins cannot be unified, so that the plastic pins need to be additionally corrected in the assembling process, and the assembling efficiency is low. Similar problems exist with other plastic needle (or intravenous needle) assemblies.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a vein needle fin blanking device which is neat, accurate and efficient, a needle handle main plate and a groove I thereof are arranged in an inclined manner, and a feeding seat can be operated in a rotating and guiding manner, so that the stroke distance for conveying vein needle fins is effectively shortened, and the size of the space occupied by the vein needle fin blanking device is reduced; meanwhile, the guide device can transfer and guide the conveying of the vein needle fins and is matched with a vein needle jig with adjacent caulking groove holes overlapped, so that at least 1 time of vein needle fins can be accommodated in the vein needle jig with the same length.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a vein needle fin piece feeding mechanism which comprises a needle handle main board for conveying a vein needle fin piece, a pushing assembly for pushing the vein needle fin piece, a feeding seat for guiding and conveying the vein needle fin piece in a rotating manner, a guiding device for conveying the vein needle fin piece downwards, and a vein needle jig for receiving the vein needle conveyed down from the guiding device; the pushing assembly can push the vein needle fin conveyed to the bottom end of the needle handle main board along the needle handle main board into the feeding seat, and then convey the vein needle fin in the feeding seat downwards into the vein needle jig through the guide device.

Preferably, the needle handle main board is provided with a plurality of grooves I for conveying the intravenous needle fins, and the needle handle main board and the bottom end of each groove I are provided with a first thimble and a second thimble side by side for blocking the intravenous needle fins. Needle handle mainboard and many grooves I thereof are certain inclination (25 ~ 80) and set up to carry out the fixed stay effect through two backup pads in needle handle mainboard bottom, be favorable to falling into the vein needle fin in many grooves I on the needle handle mainboard according to self gravity landing downwards or carry needle handle mainboard bottom downwards.

Preferably, two through holes used for matching the first ejector pin and the second ejector pin are formed in the bottom end of each groove I; the first thimble and the second thimble can reciprocate up and down along the direction which corresponds to the through hole and is vertical to the axial direction of the groove I, and the distance between the first thimble and the second thimble is the length for accommodating a vein needle wing piece, namely the length of the vein needle wing piece; when the first ejector pin ejects the groove I upwards, the second ejector pin retracts the groove I downwards; when the first ejector pin is retracted downwards to the groove I, the second ejector pin is ejected upwards to the groove I; the first thimbles are arranged on the first thimble seats side by side, the second thimbles are arranged on the second thimble seats side by side, and the first thimbles and the second thimbles are driven to reciprocate up and down along the direction that the corresponding through holes are vertical to the axial direction of the corresponding grooves I; when the first thimbles are retracted downwards to the groove I, the second thimbles are ejected upwards to the groove I, the vein needle fins which are blocked by the first thimbles and clamped between the first thimbles and the second thimbles side by side are conveyed downwards along the groove I, or part of vein needle fins remained on the groove I are conveyed downwards along the groove I under the pushing action of the pushing component; meanwhile, the subsequent vein needle wing plates which are arranged side by side are blocked by the second thimbles; when the first thimbles are ejected out of the groove I, the second thimbles are retracted downwards, the vein needle fins which are arranged side by side in succession and are blocked by the second thimbles are conveyed downwards by a vein needle fin length distance, and meanwhile, the vein needle fins are blocked by the first thimbles; the first thimble and the second thimble move back and forth in sequence, so that the vein needle fins are conveyed downwards orderly row by row.

Preferably, an air blowing cylinder for blowing the vein needle fins is further arranged on the needle handle main board, the air blowing cylinder is fixed on the top end faces of the two supporting plates, and a plurality of air blowing holes capable of aligning with the grooves I on the needle handle main board are formed in the air blowing cylinder. The air blowing holes are communicated with the air blowing cylinder, after air is blown in the air blowing cylinder, the air blowing holes are respectively aligned to the vein needle fins in the grooves I along the axial direction of the grooves I for air blowing, and the structure can effectively ensure that the vein needle fins slide down along the grooves I or are conveyed to the bottom end of the needle handle main board.

Preferably, a transparent baffle plate for preventing the vein needle wing from separating upwards from the groove I of the needle handle main plate is attached to the upper side surface (namely, positioned above the grooves I) of the needle handle main plate.

Preferably, the material pushing assembly comprises a row of blocking needles which are sequentially aligned with each groove I on the needle handle main board and can move up and down and move back and forth along the respective groove I.

Specifically, the method comprises the following steps: the pushing assembly comprises a top plate, a push plate, a row of blocking needles fixed on the bottom surface of the push plate, a cylinder I capable of reciprocating in the direction perpendicular to the axial direction of the groove I and a cylinder II capable of reciprocating in the extending direction of the axial direction of the groove I, the top plate is fixedly arranged at the bottom end of a needle handle main plate through a support, the cylinder I is connected with the top plate through the cylinder II, the push plate is connected with the cylinder I, the cylinder II is fixedly connected with the top plate through a support block, a piston rod II on the cylinder II is fixedly connected with a sliding bottom block, and two sliding fixed blocks, two sliding blocks I and the cylinder II are fixedly arranged on the sliding bottom block; wherein: the two sliding blocks I are movably connected with the top plate, the push plate is movably connected with the two sliding fixed blocks through the two sliding blocks II, and a piston rod I on the air cylinder I is fixedly connected with the push plate; the push plate can reciprocate along the direction perpendicular to the axial direction of the groove I under the action of the cylinder I and the piston rod I, and the cylinder I and the push plate can reciprocate along the extending direction of the axial direction of the groove I under the action of the cylinder II and the piston rod II. The blocking needles are inserted into corresponding through holes on the bottom surface of the push plate, so that the blocking needles can be pulled out in time and replaced by new ones according to the conditions of the blocking needles.

Preferably, the feeding seat is connected with a driving device for driving the feeding seat to rotate and guide. Specifically, the method comprises the following steps: the drive arrangement includes bearing, bearing housing, gear and rack, wherein: the bearing is fixedly connected with the feeding seat, the gear is fixed at one end of the bearing and is meshed and connected with the rack; the rack is driven to reciprocate, so that the gear and the bearing are driven to do reciprocating rotary motion, and the feeding seat does reciprocating rotary motion along with the bearing. A plurality of grooves II are formed in the feeding seat, and notches of the grooves II are respectively positioned in the extending direction of the grooves I on the needle handle main board; a material blocking slide block which can block the vein needle wing pieces in the grooves II is movably arranged on the bottom end face of the material loading seat.

A cover plate is covered on one side face of a groove II arranged on the feeding seat, so that the groove II on the feeding seat is in a vertically through state, the material blocking slide block on the bottom end face of the feeding seat can move left and right or vertically in a reciprocating mode, a plurality of protruding parts are arranged on the material blocking slide block, and when the material blocking slide block is moved to a material blocking position, the protruding parts can shield bottom end notches of the plurality of grooves II on the feeding seat, and the vein needle wing pieces are blocked in the grooves II; when keeping off the material slider to the pay-off position through removing for these bellyings can stagger mutually with the bottom notch of many grooves II on the material loading seat, and the realization can be carried vein needle fin downwards and leave and keep off the material slider along the bottom notch of these grooves II.

As preferred, establish first concave strip I and second concave strip I side by side on the bottom surface of material loading seat slot II, wherein: the embedded depth of first concave strip I on the bottom surface of groove II is greater than second concave strip I on the bottom surface of groove II, still is equipped with sand grip I between first concave strip I and the second concave strip I on every groove II. The design of this structure makes vein needle fin all present the same fixed gliding or the whereabouts gesture in every groove II of material loading seat and guarantees to block and stop these vein needle fins by keeping off the material slider and in the bottom notch department of groove II steadily, and the back is putd off to the material slider simultaneously, and these vein needle fins that block at the bottom end notch department of groove II can be with the same gliding or the whereabouts gesture to guider's whereabouts track in.

Preferably, the guiding device comprises a first guiding plate and a second guiding plate, wherein a plurality of grooves III are formed in the inner side surface of the first guiding plate, a plurality of grooves IV are formed in the inner side surface of the second guiding plate, and after the inner side surface of the first guiding plate is combined with the inner side surface of the second guiding plate, a plurality of falling tracks are formed after the grooves III in the first guiding plate are combined with the corresponding grooves IV in the second guiding plate, wherein: an inclination angle of 0-90 degrees is formed between the orientation of the top inlet of the falling track and the orientation of the bottom outlet of the falling track. Therefore, the vein needle fin entering from the inlet at the top end of the falling track generates rotary deviation of 0-90 degrees in the downward sliding process of the falling track, and then slides out from the outlet at the bottom end of the falling track to enter the corresponding embedded slot hole on the vein needle jig.

Preferably, the vein needle jig is provided with a groove V, the groove V is formed by sequentially communicating a plurality of caulking holes, and two adjacent caulking holes are overlapped with each other. The two adjacent vein needle fins embedded in the two adjacent embedding slots can be mutually overlapped, and the vein needle fins with more quantity can be stored or placed on the vein needle jig with the same length.

Preferably, the bottom surface of each groove III on the first guide plate is an inclined surface III, and an inclined angle of 0-90 degrees is formed between the surface of the top end of the bottom surface of each groove III and the surface of the bottom end of each groove III; the bottom surface of each groove IV on the second guide plate is an inclined surface IV, and an inclined angle of 0-90 degrees is formed between the surface of the top end of the bottom surface of each groove IV and the surface of the bottom end of each groove IV; after the first guide plate and the second guide plate are combined, a plurality of inclined falling tracks are formed between the inclined surface III of the groove III on the first guide plate and the inclined surface IV of the corresponding groove IV on the second guide plate.

Preferably, a first concave strip and a second concave strip are arranged on the inclined surface IV of the groove IV on the second guide plate side by side, wherein: the embedded depth of the first concave strip on the inclined plane IV is larger than that of the second concave strip on the inclined plane IV, and a convex strip is arranged between the first concave strip and the second concave strip on each groove IV; the design of the structure ensures that the intravenous needle fins present the same fixed falling postures in each groove IV and each falling track of the second guide plate and can be stably conveyed into the corresponding embedded groove holes on the intravenous needle jig.

Preferably, two adjacent falling tracks on the guide device are respectively communicated with two alternate slotted holes on the intravenous needle jig correspondingly. The two adjacent vein needle fins embedded in the two adjacent embedding slots can be mutually overlapped, the structural design realizes that one vein needle jig can contain two rows of vein needle fins conveyed downwards by the guide device, namely the two rows of vein needle fins can be arranged in the slot V on the vein needle jig in a staggered mode.

Preferably, the first guide plate is connected with a piston rod III of the air cylinder III, and under the driving action of the air cylinder III and the piston rod III thereof, the first guide plate reciprocates along the axial telescopic direction of the piston rod III of the air cylinder III; under the driving action of the cylinder III and the piston rod III of the cylinder, the first guide plate gradually approaches the second guide plate, and after the inner side surface of the first guide plate is combined with the inner side surface of the second guide plate, the groove III on the first guide plate is combined with the corresponding groove IV on the second guide plate to form a plurality of falling tracks.

Wherein: the air cylinder III is fixed on an air cylinder III seat, and the air cylinder III seat is fixed on the base; the structural design is to ensure the stability of the air cylinder III in the process of driving the first guide plate to reciprocate by the air cylinder III, so that the accurate control of combining or separating the first guide plate and the second guide plate is accurately controlled; the outer side face of the second guide plate is respectively fixedly connected with the two supporting seats through the two supporting plates, the spring seat is arranged between the two supporting seats in a clamping mode, the spring strip is arranged between the two supporting plates and the second guide plate in a clamping mode, the structure is designed to ensure that when the first guide plate is drawn close to the second guide plate and combined into a whole, a certain buffering effect is generated, and the situation that the second guide plate is deviated or loosened due to over-rigid collision is avoided.

Preferably, the two vein needle fin feeding mechanisms are arranged side by side, wherein a plurality of vein needle jigs can circularly move or reciprocate along the arrangement direction of the discharge holes of the plurality of falling tracks of the bottom end guide devices of the two vein needle fin feeding mechanisms; because the length of the overlapping part area between two adjacent embedded groove holes in the groove V arranged on the vein needle jig is half of the length of the embedded groove holes or half of the width of the vein needle fins, one vein needle jig (namely one unit length) embedded groove hole can accommodate two rows of vein needle fins conveyed by a vein needle fin feeding mechanism, so that one vein needle jig can sequentially receive one row of vein needle fins respectively conveyed by the two vein needle fin feeding mechanisms through the arrangement direction of a plurality of falling track discharge holes of a guide device at the bottom end of the two vein needle fin feeding mechanisms, and the two rows of vein needle fins are mutually conveyed into two rows of spaced embedded groove holes on the vein needle jig in a staggered manner; the dilatation effect of the existing intravenous needle jig is realized, the equipment and the process cost are not increased, and meanwhile, the capacity of the intravenous needle fin embedded in the intravenous needle jig is increased by 1 time per unit length, so that the capacity efficiency of the intravenous needle fin assembling equipment is effectively improved.

Compared with the prior art, the invention has the beneficial effects that:

according to the technical scheme, the pushing assembly is matched with the two groups of ejector pins arranged at the bottom end of the needle handle main board to work, so that the phenomenon that a plurality of vein needle wings stay in the groove I of the needle handle main board due to factors such as light dead weight of the vein needle wings is avoided, and the vein needle wings are effectively conveyed neatly, accurately and efficiently; meanwhile, the needle handle main board is arranged in an inclined shape, and the feeding seat can be rotationally guided, so that the stroke distance of the vein needle conveying wing piece is greatly reduced, and the size of the equipment device is reduced; simultaneously through guider and the mutually supporting work of the intravenous needle tool of setting in this guider bottom exit, carry out rotatory skew direction, specifically to carrying the intravenous needle fin that gets into in this guider whereabouts track through guider: after the row of vein needle fins entering from the inlet at the top end of the falling track of the guide device rotate and deviate by 0-90 degrees in the downward sliding process of the falling track, the vein needle fins slide out from the outlet at the bottom end of the falling track and enter into the embedded groove holes at intervals on the vein needle jig. Because the mutual side-by-side overlapping area with at least half vein needle fin length exists between the adjacent slotted holes on the vein needle jig, at least two rows of vein needle fins can be accommodated in the vein needle jig with the same length, the capacity expansion effect of the existing vein needle jig is realized, the internal capacity of the vein needle jig with unit length is increased while the equipment and process cost are not increased, and the capacity efficiency of the affiliated vein needle fin assembling equipment is effectively improved.

Drawings

FIG. 1 is a schematic diagram of the present invention showing the simultaneous operation of two intravenous needle tab loading mechanisms;

FIG. 2 is a schematic diagram of the overall structure of the intravenous needle tab feeding mechanism of the present invention;

FIG. 3 is a schematic view of the engagement structure of the needle handle main plate and the pushing assembly in FIG. 2;

FIG. 4 is an enlarged partial schematic view at position A of FIG. 3;

FIG. 5 is a schematic view of the pusher assembly of the present invention;

FIG. 6 is a schematic view of a matching structure among the needle handle main plate, the feeding seat, the guiding device and the intravenous needle jig in FIG. 2;

FIG. 7 is a schematic structural view of a loading base according to the present invention;

FIG. 8 is an enlarged partial schematic view at position B in FIG. 7;

fig. 9 is a schematic structural view of the material blocking slide block in the invention.

FIG. 10 is a schematic view of one construction of the guide of the present invention;

FIG. 11 is a schematic view of another embodiment of the guide of the present invention;

FIG. 12 is a schematic view of the construction of a first guide plate according to the present invention;

FIG. 13 is an enlarged partial schematic view of the structure at position C of FIG. 12;

FIG. 14 is a schematic view of a second guide plate according to the present invention;

FIG. 15 is an enlarged partial schematic view of FIG. 14 at position D;

FIG. 16 is a schematic view of the first and second guide plates of the present invention;

FIG. 17 is a schematic structural view of the intravenous needle jig of the present invention;

FIG. 18 is an enlarged partial schematic view of FIG. 17 at position E;

the attached drawings are marked as follows: the intravenous needle holder comprises a needle handle main board 1, a groove I101, a first thimble 102, a second thimble 103, a first thimble seat 104, a second thimble seat 105, an air blowing cylinder 11, an air blowing hole 110, a U-shaped block 12, a supporting plate 13, a pushing component 2, a blocking needle 201, a pushing plate 202, a sliding fixing block 203, a support 204, a top plate 205, a sliding block I206, an air cylinder II 207, a supporting block 208, an air cylinder I209, a sliding bottom block 210, a sliding block II 211, a feeding seat 3, a groove II 301, a first concave strip I302, a second concave strip I303, a convex strip I304, a driving device 31, a bearing 310, a bearing shell 311, a gear 312, a rack 313, a material blocking sliding block 320, a convex part 321, a first guide plate 41, a groove III 410, an inclined surface III 411, a second guide plate 42, a groove IV 420, an inclined surface IV 421, a first concave strip II 422, a second concave strip II 423, a convex strip II 424, an intravenous needle jig 5, a V501, a slotted hole 502 and.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

It is to be understood that the terms "first," "upper," "lower," "left," "right," "I," "II," "III," "IV," "V," "top" and "bottom" and the like in the description and in the claims are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that such structures are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

Example 1:

as shown in fig. 2 to 18, the present invention provides a specific embodiment of a feeding mechanism for intravenous needle fins, which includes a needle handle main board 1 for conveying intravenous needle fins 6, a pushing assembly 2 for pushing the intravenous needle fins 6, a feeding seat 3 for guiding the vein needle fins 6 in a rotating manner, a guiding device for conveying the intravenous needle fins 6 downwards, and a intravenous needle jig 5 for receiving intravenous needles conveyed down from the guiding device; the material pushing assembly 2 can push the vein needle wing pieces 6 conveyed to the bottom end of the needle handle main board 1 along the needle handle main board 1 into the feeding seat 3, and then convey the vein needle wing pieces 6 in the feeding seat 3 downwards into the vein needle jig 5 through the guide device.

As shown in fig. 2, 3 and 6, the needle handle main plate 1 is provided with a plurality of grooves i 101 for conveying the intravenous needle fins 6, and a first thimble 102 and a second thimble 103 for blocking the intravenous needle fins 6 are arranged on the needle handle main plate 1 and at the bottom end of each groove i 101 side by side. Needle handle mainboard 1 and many I101 grooves of it are certain inclination 25~80 settings to carry out the fixed stay effect through two backup pads 13 in 1 bottoms of needle handle mainboard, be favorable to falling into the vein needle fin 6 in many I101 grooves on the needle handle mainboard 1 of needle handle mainboard according to self gravity landing downwards or carry needle handle mainboard 1 bottom downwards.

As shown in fig. 3 to 4, two through holes for matching the first thimble 102 and the second thimble 103 are formed at the bottom end of each slot i 101; the first thimble 102 and the second thimble 103 can reciprocate up and down along the direction which corresponds to the through hole and is vertical to the axial direction of the groove I101, and the distance between the first thimble 102 and the second thimble 103 is the length for accommodating a vein needle wing piece 6, namely the length of the vein needle wing piece 6; when the first thimble 102 ejects the slot I101 upwards, the second thimble 103 retracts the slot I101 downwards; when the first thimble 102 retracts downwards to the groove I101, the second thimble 103 ejects out the groove I101 upwards at the same time; the first thimbles 102 are arranged on the first thimble seats 104 side by side, the second thimbles 103 are arranged on the second thimble seats 105 side by side, and the first thimble seats 104 and the second thimble seats 105 are driven to enable the first thimbles 102 and the second thimbles 103 to reciprocate up and down along the directions of the corresponding through holes vertical to the axial direction of the corresponding grooves I101; when the first thimbles 102 are retracted downwards to the groove I101, and the second thimbles 103 are ejected upwards to the groove I101, the vein needle fins 6 which are blocked by the first thimbles 102 and clamped between the first thimbles 102 and the second thimbles 103 side by side are conveyed downwards along the groove I101, or part of the vein needle fins 6 remained on the groove I101 are conveyed downwards along the groove I101 under the pushing action of the pushing component 2; while the following side-by-side intravenous needle wings 6 are blocked by the second needles 103; when the first thimbles 102 are ejected out of the groove I101 and the second thimbles 103 are retracted downwards into the groove I101, the vein needle wing pieces 6 which are subsequently arranged side by side and blocked by the second thimbles 103 are conveyed downwards by the length distance of one vein needle wing piece 6, and are blocked by the first thimbles 102; the first thimble 102 and the second thimble 103 sequentially reciprocate, so that the vein needle fins 6 are delivered downward in line by line.

As shown in fig. 2, 3 and 6, an air blowing cylinder 11 for blowing the vein needle fin 6 is further provided on the needle handle main board 1, the air blowing cylinder 11 is fixed on the top end faces of the two support plates 1313 through two U-shaped blocks 12, and a plurality of air blowing holes 110 capable of aligning with the groove i 101 on the needle handle main board 1 are provided on the air blowing cylinder 11. The air blowing holes 110 are communicated with the air blowing cylinder 11, after air is blown in the air blowing cylinder 11, the air blowing holes 110 are respectively aligned with the vein needle fins 6 in the groove I101 for air blowing along the axial direction of the groove I101, and the structure can effectively ensure that the vein needle fins 6 slide along the groove I101 or are conveyed to the bottom end of the needle handle main plate 1.

And a transparent baffle plate for preventing the vein needle wing 6 from separating from the groove I101 of the needle handle main plate 1 upwards is attached to the upper side surface (namely, positioned above the plurality of grooves I101) of the needle handle main plate 1.

As shown in fig. 2 to 5, the pushing assembly 2 includes a row of blocking needles 201 aligned with each groove i 101 on the needle handle main board 1 in sequence and capable of moving up and down and moving back and forth along the respective groove i 101. Specifically, the method comprises the following steps: the material pushing assembly 2 comprises a top plate 205, a push plate 202, a row of blocking needles 201 fixed on the bottom surface of the push plate 202, a cylinder I209 capable of reciprocating in the direction perpendicular to the axial direction of the groove I101, and a cylinder II 207 capable of reciprocating in the extending direction of the axial direction of the groove I101, wherein the top plate 205 is fixedly installed on the bottom end of the needle handle main plate 1 through a support 204, the cylinder I209 is connected with the top plate 205 through the cylinder II 207, the push plate 202 is connected with the cylinder I209, the cylinder II 207 is fixedly connected with the top plate 205 through a support block 208, a piston rod II on the cylinder II 207 is fixedly connected with a sliding bottom block 210, and two sliding fixed blocks 203, two sliding blocks I206 and the cylinder II 207 are fixedly installed on the sliding bottom block 210; wherein: the two sliding blocks I206 are movably connected with the top plate 205, the push plate 202 is movably connected with the two sliding fixed blocks 203 through the two sliding blocks II 211, and a piston rod I on the air cylinder I209 is fixedly connected with the push plate 202; so that the push plate 202 reciprocates along the direction perpendicular to the axial direction of the groove I101 under the action of the cylinder I209 and the piston rod I thereof, and the cylinder I209 and the push plate 202 reciprocate along the extending direction of the axial direction of the groove I101 under the action of the cylinder II 207 and the piston rod II thereof. The blocking needles 201 are inserted into corresponding through holes on the bottom surface of the push plate 202, so that the blocking needles 201 can be pulled out in time and replaced with new blocking needles 201 according to the conditions of the respective blocking needles 201.

As shown in fig. 2 and 6, a driving device 31 for driving the loading base 3 to rotate and guide is connected to the loading base 3. Specifically, the method comprises the following steps: the driving device 31 includes a bearing 310, a bearing housing 311, a gear 312, and a rack 313, wherein: the bearing 310 is fixedly connected with the feeding seat 3, the gear 312 is fixed at one end of the bearing 310, and the gear 312 is meshed with the rack 313; the rack 313 is driven to reciprocate, so that the gear 312 and the bearing 310 are driven to reciprocate, and the feeding seat 3 reciprocates along with the bearing 310.

As shown in fig. 7 to 8, a plurality of grooves ii 301 are arranged on the feeding base 3, and notches of the grooves ii 301 are respectively located in the extending direction of the groove i 101 on the needle handle main board 1; a material blocking slide block 320 which can block the vein needle wing piece 6 in the grooves II 301 is movably arranged on the bottom end surface of the material loading seat 3.

A cover plate is covered on one side face of a groove II 301 arranged on the feeding seat 3, so that the groove II 301 on the feeding seat 3 is in a vertically through state, the material blocking slide block 320 on the bottom end face of the feeding seat 3 can move left and right or vertically in a reciprocating mode, a plurality of protruding parts 321 are arranged on the material blocking slide block 320, when the material blocking slide block 320 is moved to a material blocking position, the protruding parts 321 can shield bottom end notches of the plurality of grooves II 301 on the feeding seat 3, and the vein needle fins 6 are blocked in the grooves II 301; when the blocking slide block 320 is moved to the feeding position, the convex parts 321 can be staggered with the bottom end notches of the grooves II 301 on the feeding seat 3, so that the vein needle fins 6 can be conveyed downwards along the bottom end notches of the grooves II 301 and leave the blocking slide block 320.

As shown in FIG. 8, a first concave strip I302 and a second concave strip I303 are arranged on the bottom surface of a groove II 301 of the feeding seat 3 side by side, wherein: the embedded depth of the first concave strips I302 on the bottom surface of the groove II 301 is larger than that of the second concave strips I303 on the bottom surface of the groove II 301, and convex strips I304 are further arranged between the first concave strips I302 and the second concave strips I303 on each groove II 301. The design of this structure makes vein needle fin 6 all present the same fixed gliding or the falling gesture in every groove II 301 of material loading seat 3 and guarantees to block these vein needle fins 6 and stop in the bottom notch department of groove II 301 by keeping off the material slider 320 steadily, and the back is putd aside with keeping off the material slider 320 simultaneously, these vein needle fins 6 that block in the bottom notch department of groove II 301 can be in the same gliding or the falling gesture falls in guider's the track of falling.

As shown in fig. 10 to 16, the guiding device includes a first guiding plate 41 and a second guiding plate 42, wherein a plurality of grooves iii 410 are provided on the inner side surface of the first guiding plate 41, a plurality of grooves iv 420 are provided on the inner side surface of the second guiding plate 42, and after the inner side surface of the first guiding plate 41 is combined with the inner side surface of the second guiding plate 42, the grooves iii 410 on the first guiding plate 41 are combined with the corresponding grooves iv 420 on the second guiding plate 42 to form a plurality of falling tracks, wherein: an inclination angle of 0-90 degrees is formed between the orientation of the top inlet of the falling track and the orientation of the bottom outlet of the falling track. Therefore, the vein needle fin 6 entering from the inlet at the top end of the falling track generates rotary deviation of 0-90 degrees in the downward sliding process through the falling track, and then slides out from the outlet at the bottom end of the falling track to enter the corresponding caulking groove hole 502 on the vein needle jig 5.

As shown in fig. 17 to 18, a groove v 501 is formed in the intravenous needle jig 5, the groove v 501 is formed by sequentially communicating a plurality of caulking holes 502, and two adjacent caulking holes 502 are overlapped with each other. So that two adjacent vein needle fins 6 embedded in two adjacent embedding slots 502 can be overlapped with each other, and a larger number of vein needle fins 6 can be stored or placed on the vein needle fixture 5 with the same length.

As shown in fig. 12 to 13, the bottom surface of each groove iii 410 on the first guide plate 41 is an inclined surface iii 411, and an inclined angle of 0 to 90 ° is formed between the surface of the top end of the bottom surface of each groove iii 410 and the surface of the bottom end thereof; the bottom surface of each groove IV 420 on the second guide plate 42 is an inclined surface IV 421, and an inclined angle of 0-90 degrees is formed between the surface of the top end of the bottom surface of each groove IV 420 and the surface of the bottom end of each groove IV 420; after the first guide plate 41 and the second guide plate 42 are combined, a plurality of inclined falling rails are formed between the inclined surface iii 411 of the trough iii 410 of the first guide plate 41 and the inclined surface iv 421 of the trough iv 420 of the corresponding second guide plate 42.

As shown in fig. 14 to 15, a first concave strip ii 422 and a second concave strip ii 423 are arranged side by side on the inclined surface iv 421 of the groove iv 420 of the second guide plate 42, wherein: the embedded depth of the first concave strips II 422 on the inclined surface IV 421 is larger than that of the second concave strips II 423 on the inclined surface IV 421, and a convex strip II 424 is arranged between the first concave strips II 422 and the second concave strips II 423 on each groove IV 420; the design of the structure ensures that the intravenous needle fins 6 present the same fixed falling posture in each groove IV 420 and each falling track of the second guide plate 42 and can smoothly convey the intravenous needle fins 6 into the corresponding slotted holes 502 on the intravenous needle jig 5.

The two adjacent falling tracks on the guiding device are respectively communicated with the two alternate slotted holes 502 on the intravenous needle jig 5 correspondingly. The two adjacent vein needle fins 6 embedded in the two adjacent embedding slots 502 can be mutually overlapped, the structural design realizes that one vein needle jig 5 can contain two rows of vein needle fins 6 conveyed downwards by a guide device, namely the two rows of vein needle fins 6 can be arranged in the groove V501 on the vein needle jig 5 in a staggered manner.

As shown in fig. 10 to 11, the first guide plate 41 is connected to the piston rod iii of the cylinder iii, and under the driving action of the cylinder iii and the piston rod iii thereof, the first guide plate 41 reciprocates along the axial extension direction of the piston rod iii of the cylinder iii; under the driving action of the cylinder III and the piston rod III of the first guide plate 41, the first guide plate 41 gradually approaches the second guide plate 42, and after the inner side surface of the first guide plate 41 is combined with the inner side surface of the second guide plate 42, the grooves III 410 on the first guide plate 41 are combined with the corresponding grooves IV 420 on the second guide plate 42 to form a plurality of falling tracks.

Wherein: the air cylinder III is fixed on an air cylinder III seat, and the air cylinder III seat is fixed on the base; the structural design is to ensure the stability of the air cylinder III in the process of driving the first guide plate 41 to reciprocate by the air cylinder III, so that the accurate control of combining or separating the first guide plate 41 and the second guide plate 42 is accurately realized; the outer side face of the second guide plate 42 is respectively fixedly connected with the two supporting seats through the two supporting plates 13, a spring seat is clamped between the two supporting seats, a spring strip is clamped between the two supporting plates 13 and the second guide plate 42, and the structure is designed to produce a certain buffering effect when the first guide plate 41 is drawn close to the second guide plate 42 and combined into a whole, so that the second guide plate 42 is prevented from shifting or loosening due to over-rigid collision.

Example 2:

on the basis of the embodiment 1, as shown in fig. 1, the two vein needle fin feeding mechanisms in the present invention are arranged side by side, wherein a plurality of vein needle jigs 5 can move circularly or reciprocally along the arrangement direction of the discharge ports of the plurality of falling tracks of the bottom end guide devices of the two vein needle fin feeding mechanisms; because the length of the overlapping part between two adjacent slotted holes 502 in the groove V501 arranged on the vein needle jig 5 is half of the length of the slotted hole 502 or half of the width of the vein needle fin 6, one vein needle jig 5 (which is a unit length) of the embedded slotted hole 502 can accommodate two rows of vein needle fins 6 conveyed by the vein needle fin feeding mechanism, thereby realizing that one vein needle jig 5 can sequentially receive one row of vein needle fins 6 respectively conveyed by the two vein needle fin feeding mechanisms through moving the arrangement direction of a plurality of falling track discharge holes of the bottom end guiding devices of the two vein needle fin feeding mechanisms, and the two rows of vein needle fins 6 are mutually and alternately conveyed into two rows of spaced slotted holes 502 on the vein needle jig 5 (namely, the parallel plurality of slotted holes on the vein needle jig 5 are 1 according to the sequence), 3. 5 … … and 2, 4, 6 into two spaced rows of slotted apertures 502); the capacity expansion effect of the existing intravenous needle jig is realized, the equipment and the process cost are not increased, and meanwhile, the 1-time capacity of the intravenous needle fin 6 embedded in the intravenous needle jig 5 in unit length is increased, so that the capacity efficiency of the intravenous needle fin assembling equipment is effectively improved.

According to the invention, by adopting the technical scheme, the pushing assembly 2 and the two groups of ejector pins arranged at the bottom end of the needle handle main board 1 are matched with each other to work, so that the phenomenon that a plurality of vein needle fins 6 stay in the groove I101 of the needle handle main board 1 due to factors such as light self weight of the vein needle fins 6 is avoided, and the vein needle fins 6 are effectively conveyed neatly, accurately and efficiently; meanwhile, the needle handle main board 1 is obliquely arranged, and the feeding seat 3 can be rotationally guided, so that the stroke distance of the vein needle conveying wing piece 6 is greatly reduced, and the size of the equipment is reduced; simultaneously through guider and the mutually supporting work of the intravenous needle tool 5 of setting in this guider bottom exit, carry out rotatory skew direction, specifically to carrying the intravenous needle fin 6 that gets into in this guider interior whereabouts track through guider: after the vein needle fins 6 entering from the inlet at the top end of the falling track of the guiding device rotate and deviate by 0-90 degrees in the downward sliding process of the falling track, the vein needle fins slide out from the outlet at the bottom end of the falling track and enter into the slotted holes 502 at intervals on the vein needle jig 5. Because the mutually side-by-side overlapping region with the length of at least half of the vein needle fins 6 exists between the adjacent slotted holes 502 on the vein needle jig 5, at least two rows of vein needle fins 6 can be accommodated in the vein needle jig 5 with the same length, the capacity expansion effect of the vein needle jig 5 is realized, the internal capacity of the vein needle jig 5 (namely the quantity of the vein needle fins 6) in unit length is increased while the equipment and process cost are not increased, and the capacity production efficiency of the vein needle fin 6 assembling equipment is effectively improved.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The intravenous needle fin piece feeding mechanism is characterized by comprising a needle handle main board (1) for conveying an intravenous needle fin (6), a pushing assembly (2) for pushing the intravenous needle fin (6), a feeding seat (3) for rotatably guiding the vein needle fin (6), a guiding device for conveying the intravenous needle fin (6) downwards, and a intravenous needle jig (5) for receiving intravenous needles conveyed down from the guiding device; the pushing assembly (2) can push the vein needle fins (6) conveyed to the bottom end of the needle handle main board (1) along the needle handle main board (1) into the feeding seat (3), and then convey the vein needle fins (6) in the feeding seat (3) downwards into the vein needle jig (5) through the guide device;

the guiding device comprises a first guiding plate (41) and a second guiding plate (42), wherein a plurality of grooves III (410) are arranged on the inner side face of the first guiding plate (41), a plurality of grooves IV (420) are arranged on the inner side face of the second guiding plate (42), and after the inner side face of the first guiding plate (41) is combined with the inner side face of the second guiding plate (42), a plurality of falling tracks are formed after the grooves III (410) on the first guiding plate (41) and the corresponding grooves IV (420) on the second guiding plate (42) are combined, wherein: an inclination angle of 0-90 degrees is formed between the orientation of the top inlet of the falling track and the orientation of the bottom outlet of the falling track;

the bottom surface of each groove III (410) on the first guide plate (41) is an inclined surface III (411), and an inclined angle of 0-90 degrees is formed between the surface of the top end of the bottom surface of each groove III (410) and the surface of the bottom end of the bottom surface of each groove III (410); the bottom surface of each groove IV (420) on the second guide plate (42) is an inclined surface IV (421), and an inclined angle of 0-90 degrees is formed between the surface of the top end of the bottom surface of each groove IV (420) and the surface of the bottom end of the bottom surface of each groove IV (420); after the first guide plate (41) and the second guide plate (42) are combined, a plurality of inclined falling tracks are formed between the inclined surface III (411) of the groove III (410) on the first guide plate (41) and the inclined surface IV (421) of the corresponding groove IV (420) on the second guide plate (42);

a first concave strip II (422) and a second concave strip II (423) are arranged on the inclined surface IV (421) of the groove IV (420) on the second guide plate (42) side by side, wherein: the embedded depth of the first concave strips II (422) on the inclined surface IV (421) is greater than that of the second concave strips II (423) on the inclined surface IV (421), and a convex strip II (424) is arranged between the first concave strips II (422) and the second concave strips II (423) on each groove IV (420);

a groove V (501) is arranged on the vein needle jig (5), the groove V (501) is formed by a plurality of slotted holes (502) which are communicated with each other in sequence, and two adjacent slotted holes (502) are overlapped with each other.

2. An intravenous needle fin feeding mechanism according to claim 1, wherein a plurality of grooves i (101) for feeding the intravenous needle fins (6) are provided on the needle handle main plate (1), and a first thimble (102) and a second thimble (103) for blocking the intravenous needle fins (6) are provided side by side on the needle handle main plate (1) and on a bottom end of each groove i (101).

3. The intravenous needle fin feeding mechanism as claimed in claim 2, wherein two through holes for fitting the first thimble (102) and the second thimble (103) are provided on the bottom end of each groove i (101); the first thimble (102) and the second thimble (103) can reciprocate up and down along the direction which corresponds to the through hole and is vertical to the axial direction of the groove I (101), the distance between the first thimble (102) and the second thimble (103) is the length for accommodating a vein needle wing piece (6), and when the first thimble (102) is ejected out of the groove I (101) upwards, the second thimble (103) is retracted downwards into the groove I (101); when the first thimble (102) retracts downwards to the groove I (101), the second thimble (103) ejects out of the groove I (101) upwards.

4. An intravenous needle fin feeding mechanism according to claim 1, 2 or 3, characterized in that the feeding assembly (2) comprises a row of blocking needles (201) which are aligned with each groove I (101) of the needle handle main plate (1) in turn and can move up and down and back and forth along the respective groove I (101).

5. A intravenous needle fin feeding mechanism according to claim 1, 2 or 3, characterized in that the feeding base (3) is connected with a driving device (31) for driving the feeding base (3) to rotate and guide; a plurality of grooves II (301) are arranged on the feeding base (3), and notches of the grooves II (301) are respectively positioned in the extending direction of the groove I (101) on the needle handle main board (1); a material blocking slide block (320) which can block the vein needle wing pieces (6) in the grooves II (301) is movably arranged on the bottom end surface of the material loading seat (3).

6. The intravenous needle fin feeding mechanism according to claim 1, wherein two adjacent falling rails on the guiding device are respectively communicated with two alternate slotted holes (502) on the intravenous needle fixture (5).