阅读说明：本技术 一种尾端为扁形的针丝成型装置及成型方法 (needle wire forming device with flat tail end and forming method ) 是由 王伟春 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种尾端为扁形的针丝成型装置及成型方法,属于医疗器械领域。本发明的一种尾端为扁形的针丝成型装置及成型方法,包括底板以及在底板上按传动顺序依次传动式连接的传动机构、压扁机构和上针机构,所述传动机构通过动力模块输出动力给压扁机构及上针机构,所述上针机构将针丝传递至压扁机构,所述压扁机构将上针机构传递来的针丝的尾端进行压扁,从而实现自动化上针与压扁；针丝压扁部位能够保证金属丝绕制针体时与压扁部位紧密结合,从而有效解决金属丝绕制连接针体时不牢固等问题；对于塑料针柄的连接问题,将针尾压扁后的针丝放入注塑模具中,注塑一次性成型与压扁针尾紧密结合,以便于批量生产,降低成本。(the invention discloses a needle wire forming device with a flat tail end and a forming method, and belongs to the field of medical instruments. The invention relates to a needle wire forming device with a flat tail end and a forming method, which comprises a bottom plate, and a transmission mechanism, a flattening mechanism and a needle feeding mechanism which are sequentially connected on the bottom plate in a transmission manner according to a transmission sequence, wherein the transmission mechanism outputs power to the flattening mechanism and the needle feeding mechanism through a power module; the flattening part of the needle wire can ensure that the metal wire is tightly combined with the flattening part when the needle body is wound by the metal wire, so that the problems of insecurity and the like when the needle body is connected by the metal wire in a winding way are effectively solved; for the connection problem of the plastic needle handle, the needle thread with the flattened needle tail is placed into an injection mold, and the injection molding is formed at one time and is tightly combined with the flattened needle tail, so that the batch production is facilitated, and the cost is reduced.)

1. The utility model provides a tail end is flat's needle silk forming device which characterized in that: the needle feeding mechanism is characterized by comprising a bottom plate (1), and a transmission mechanism (2), a flattening mechanism and a needle feeding mechanism which are sequentially connected with one another in a transmission manner on the bottom plate (1) in a transmission order, wherein the transmission mechanism (2) outputs power to the flattening mechanism and the needle feeding mechanism, the needle feeding mechanism transmits a needle thread (23) to the flattening mechanism, and the flattening mechanism flattens the tail end of the needle thread (23) transmitted by the needle feeding mechanism.

2. the needle wire forming device with the flat tail end as claimed in claim 1, wherein: the base plate (1) is fixed with a foundation, the transmission mechanism (2) is fixedly installed on the base plate (1), the transmission mechanism (2) comprises a power module and a transmission gear (3) fixedly sleeved on a rotating shaft of the power module, a linkage gear (4) is meshed on the transmission gear (3), a gear I (5) is coaxially installed on the linkage gear (4), and a gear II (6) is meshed on the gear I (5);

The flattening mechanism comprises an upper roller (12) and a lower roller (13) which are matched, the upper roller (12) is connected with the gear I (5) through a rotating shaft (8), and the upper roller and the gear I are respectively sleeved at two ends of the rotating shaft (8); the lower roller (13) is connected with the gear II (6) through another rotating shaft (8) and respectively sleeved at two ends of the rotating shaft (8);

The upper needle mechanism comprises an upper needle roller (14) and a lower needle slideway (17), and the upper needle roller (14) is a roller surface of the lower roller (13) extending outwards; a groove I (24) capable of accommodating the needle thread (23) is formed in the surface of the needle feeding roller (14) along the axial direction.

3. The needle wire forming device with the flat tail end as claimed in claim 2, wherein: press close to the roller bottom surface of last needle roller (14) material loading side is provided with and is the lower needle slide (17) that the angle slope was placed with ground, lower needle slide (17) side fixedly connected with backup pad II (18), vertical the installing on bottom plate (1) of backup pad II (18).

4. the needle wire forming device with the flat tail end as claimed in claim 2, wherein: the rotating shaft (8) is also sleeved with bearings, the bearings are embedded into respective bearing seats (7), the bearings and the bearing seats (7) are 4 which are symmetrically arranged up and down, left and right, and are arranged on the inner sides of the gear I (5), the upper roller (12), the gear II (6) and the lower roller (13); the bearing blocks (7) which are distributed in an up-and-down symmetrical mode are connected through connecting rods (10), gaps are reserved between the bearing blocks (7) which are arranged up and down, rubber pads (9) are arranged in the gaps, the connecting rods (10) penetrate through the rubber pads (9) to be connected with the bearing blocks (7) which are distributed in an up-and-down symmetrical mode, and nuts (11) for adjusting the gaps are matched on the upper portions of the connecting rods (10).

5. The needle wire forming device with the flat tail end as claimed in claim 4, wherein: a through hole I (1201) and a through hole II (1301) are formed in the circle center positions of the upper roller (12) and the lower roller (13), and a shaft I (1202) and a shaft II (1302) are respectively clamped inside the through hole I (1201) and the through hole II (1301); and the end parts of the shaft I (1202) and the shaft II (1302) are fixedly arranged on the outer side surface of the left bearing seat (7) and are coaxially arranged with the rotating shaft (8).

6. The needle wire forming device with the flat tail end as claimed in claim 3, wherein: press close to go up needle roller (14) unloading lateral roll surface's lateral surface corresponds the position of lower needle slide (17) is provided with stores up needle funnel (15), store up needle funnel (15) and be the half enclosed construction of the top external-open, its one end fixedly connected with backup pad I (16), backup pad I (16) vertical installation be in on bottom plate (1), it is greater than to store up needle funnel (15) length lower roll (13) and last needle roller (14) axial total length.

7. The needle wire forming device with the flat tail end as claimed in claim 6, wherein: the another side of lower needle slide (17) still is provided with backup pad III (19), backup pad III (19) fixed mounting is on bottom plate (1), backup pad III (19) side with lower needle slide (17) side contact.

8. The needle wire forming device with the flat tail end as claimed in claim 7, wherein: a top rod (20) is fixedly mounted on the outer side surface of the supporting plate III (19), the top rod (20) transversely penetrates into the supporting plate III (19), and the end part of the penetrating part of the top rod (20) is fixedly connected with a side baffle (22); the up end of backup pad III (19) is provided with bolt I (21), bolt I (21) penetrate behind backup pad III (19) with ejector pin (20) contact.

9. The needle wire forming device with the flat tail end as claimed in claim 6, wherein: a groove II (25) is vertically carved on the upper surface of the lower needle slideway (17) corresponding to the groove I (24) on the upper needle roller (14); side shield (22) are rectangular shape and place down needle slide (17) upper surface, side shield (22) are on a parallel with recess II (25) of down needle slide (17) upper surface, and along down needle slide (17) upper surface side to side slip.

10. A method for forming a needle thread using the needle thread forming apparatus according to any one of claims 1 to 9, wherein: the transmission mechanism (2) drives the transmission gear (3) which is sleeved on the rotating shaft of the power module to rotate through the power module, and the steps are as follows:

step one, starting a transmission mechanism (2): the needle feeding mechanism is driven by the transmission mechanism (2) and transmits the needle thread (23) to the flattening mechanism;

Step two: needle tail (2301) flattening: the flattening mechanism is driven by the transmission mechanism (2) to flatten and form the needle wires (23) transmitted in the previous step.

Technical Field

the invention relates to the field of medical instruments, in particular to a needle wire forming device with a flat tail end and a forming method.

Background

At present, the stainless steel wire flat-handle needle for traditional Chinese medicine is also called spring-handle needle, and the spring-handle acupuncture needle belongs to a miniature medical appliance. The diameter of the needle body is within 1mm, some are even as small as 0.16mm, and the needle handle is not more than 2 mm. Therefore, the firm connection between the needle body and the needle handle always restricts the safe operation of the industry. The conventional method is to bend the end of the needle body and pull the bent part of the needle body into the needle handle with strong force, so that the needle body is fixed in the needle handle to achieve a certain fastness index. Although the needle body is plugged in the needle handle, because the inner diameter of the needle handle is larger than the diameter of the needle body, the end of the needle handle has a gap and a notch, and the needle body and the needle handle are not effectively connected, so that more potential safety hazards exist. Meanwhile, the top of the needle body slightly protrudes out of the flat opening of the needle tube, so that the fingers of operators are easily injured and the product is not beautiful.

For example, chinese patent application No. 01263578.2, application No. 2001, 11/1/2002, and published No. 8/7/2002 disclose a cap-type acupuncture needle with a handle and an end cap, which comprises a handle and a needle body, wherein the handle is axially provided with a needle hole penetrating the upper end and the lower end, and a section of the needle body is fixed in the needle hole, and is characterized in that: the upper end of the needle handle is provided with a cap structure which is fixedly connected with the upper end of the needle handle and seals the needle hole at the upper end of the needle handle. The utility model discloses a through the mode of sealing current needle handle upper end hole, prevent the needle body afterbody to wear out from the upper end hole under not hard up condition to reach the purpose of protection finger. The technical scheme can be used for acupuncture needles of a tube handle and a winding handle, and the effect is best when the cap structure adopts a tin soldering block to form a blocking structure. However, the needles of the acupuncture are connected by plastic needle handles, and the purpose of the connection is to use a series of schemes such as screws for firm connection, and the acupuncture needle is complex in structure and high in cost.

disclosure of Invention

1. technical problem to be solved by the invention

Aiming at the problems that the end of a needle handle has a gap and a gap in the prior art, the connection between a needle body and a spring wire wound on the needle tail is not firm, and the like, the invention provides a needle wire forming device with a flat tail end and a forming method, wherein a flattening mechanism presses the needle tail of a needle wire transmitted by a needle feeding mechanism into a flat shape, so that automatic needle feeding and flattening are realized; the joint of the flattened part of the needle wire and the needle body can ensure that the needle is not easy to fall off after the metal spring needle handle is connected with the needle body, thereby effectively solving the problems of insecurity and the like when the metal spring needle handle is connected with the needle body; for the connection problem of the plastic needle handle, the needle thread with the flattened needle tail is placed into an injection mold, and the injection molding is formed at one time and is tightly combined with the flattened needle tail, so that the batch production is facilitated, and the cost is reduced.

2. Technical scheme

in order to achieve the purpose, the technical scheme provided by the invention is as follows:

A needle thread forming device with a flat tail end and a forming method thereof comprise a bottom plate, and a transmission mechanism, a flattening mechanism and a needle feeding mechanism which are sequentially connected on the bottom plate in a transmission manner, wherein the transmission mechanism outputs power to the flattening mechanism and the needle feeding mechanism; the joint of the flattened part of the needle wire and the needle body can ensure that the needle is not easy to fall off after the metal spring needle handle is connected with the needle body, thereby effectively solving the problems of insecurity and the like when the metal spring needle handle is connected with the needle body; for the connection problem of the plastic needle handle, the needle thread with the flattened needle tail is placed into an injection mold, and the injection molding is formed at one time and is tightly combined with the flattened needle tail, so that the batch production is facilitated, and the cost is reduced.

according to the further technical scheme, the base plate is fixed with the foundation, the transmission mechanism is fixedly installed on the base plate and comprises a power module and a transmission gear fixedly sleeved on a rotating shaft of the power module, a linkage gear is meshed on the transmission gear, a gear I is coaxially installed on the linkage gear, and a gear II is meshed on the gear I;

the flattening mechanism comprises an upper roller and a lower roller which are matched; the upper roller is connected with the gear I through a rotating shaft and is respectively sleeved at two ends of the rotating shaft; the lower roller is connected with the gear II through another rotating shaft and is respectively sleeved at two ends of the rotating shaft;

The upper needle mechanism comprises an upper needle roller and a lower needle slideway, and the upper needle roller is a roller surface of a lower roller extending outwards, so that the lower roller and the upper needle roller are integrated; the roller surface of the needle feeding roller is provided with a groove I capable of accommodating needle wires along the axial direction of the roller surface, so that automatic needle feeding is realized.

according to the further technical scheme, grooves I are formed in the outer surface of the upper needle roller along the axial direction of the upper needle roller, and the depth of each groove I is only enough to accommodate one needle, so that the flattening thickness of the needle tail of each needle thread is the same and uniform; the groove I is arranged intermittently along the axial direction so as to be suitable for needles and wires with different lengths.

according to the further technical scheme, a lower needle slide way which is obliquely arranged at an angle with the ground is arranged on the bottom surface of the roller close to the feeding side of the upper needle roller, and the angle is set as long as the condition that the needle thread can transversely slide down along the lower needle slide way is met; the side face of the lower needle slide is fixedly connected with a supporting plate II, the supporting plate II is vertically installed on the bottom plate, and the supporting plate II is used for fixing the lower needle slide.

According to a further technical scheme, bearings are sleeved on the rotating shafts, the bearings are embedded into respective bearing seats, the bearings and the bearing seats are 4 bearings which are symmetrically arranged up and down and left and right and are arranged on the inner sides of the gear I and the upper roller and the inner sides of the gear II and the lower roller; the bearing blocks which are symmetrically distributed up and down are connected through the connecting rod, a gap is reserved between the bearing blocks, a rubber pad is arranged in the gap, the connecting rod penetrates through the rubber pad to be connected with the bearing blocks which are symmetrically distributed up and down, the upper portion of the connecting rod is matched with a nut for adjusting the gap, the nut is screwed down, and therefore when the upper bearing block is pressed down, the rubber pad is elastically deformed, and a certain buffering effect is achieved.

according to the further technical scheme, a nut is matched on the connecting rod to fix the bearing seat; the number of the nuts is increased to achieve the purpose of stabilizing the bearing seat.

according to the further technical scheme, a through hole I and a through hole II are formed in the circle center positions of the upper roller and the lower roller, a shaft I and a shaft II are clamped in the through hole I and the through hole II respectively, and the upper roller and the lower roller can be replaced conveniently in a clamping mode; and the ends of the shaft I and the shaft II are fixedly arranged on the outer side surface of the bearing seat and are coaxially arranged with the rotating shaft so as to realize the rotation of the upper roller and the lower roller.

according to the further technical scheme, the upper needle roller and the lower roller are connected in a clamped mode through the shaft II, so that parts are convenient to overhaul and replace.

according to the further technical scheme, a needle storage funnel is arranged close to the blanking side roller surface of the upper needle roller and the outer side surface of the blanking side roller surface of the upper needle roller, corresponding to the position of the lower needle slide way, so that the molded needles can fall into the needle storage funnel, and the collection and the arrangement of the needles are more convenient; store up the needle funnel and be the half enclosed construction of top external-open, its one end face fixedly connected with backup pad I, I vertical the installing of backup pad is in on the bottom plate, store up needle funnel length and be greater than bottom roll and last needle roller axial total length make needle silk after the shaping can fall into completely store up inside the needle funnel.

According to the further technical scheme, a supporting plate III is further arranged on the other side face of the lower needle slide way, the supporting plate III is fixedly installed on the bottom plate, and the side face of the supporting plate III is in contact with the side face of the lower needle slide way to support the lower needle slide way.

According to the further technical scheme, an ejector rod is fixedly mounted on the outer side surface of the supporting plate III, the ejector rod transversely penetrates into the supporting plate III, and the end part of the penetrating part of the ejector rod is fixedly connected with a side baffle; the upper end face of the supporting plate III is provided with a bolt I, the bolt I penetrates into the supporting plate III and then contacts with the ejector rod, and the ejector rod can control the side baffle plate to move left and right along the upper surface of the lower needle slide way.

According to a further technical scheme, a groove II is vertically engraved on the upper surface of the lower needle slideway at a position corresponding to a groove I on the upper needle roller; the side shield is rectangular shape and is placed the lower needle slide upper surface, the side shield is on a parallel with the recess II of lower needle slide upper surface, and along lower needle slide upper surface horizontal slip, just the side shield with the interval is greater than between the backup pad II needle silk length to adapt to the needle silk of different length.

In a further technical scheme, the transmission mechanism drives the transmission gear sleeved on the rotating shaft of the power module to rotate through the power module, and the transmission mechanism comprises the following steps:

Step one, adjusting the distance between rollers: the rubber pads are supported between the bearing seats which are symmetrically arranged up and down, nuts which are matched and connected with the upper parts of the connecting rods are screwed down according to the thickness of the pin tails required to be flattened so as to adjust the distance between the upper roller and the lower roller, the upper bearing seats are stopped when being pressed down until the distance between the upper roller and the lower roller is the thickness of the pin tails required to be flattened, meanwhile, the bearing seats which are symmetrically arranged up are ensured to be pressed down horizontally, and the connecting rods are matched with the nuts so as to be fixedly connected with the bearing seats;

Step two, adjusting the needle feeding mechanism: adjusting the horizontal plane of the lower needle slideway to be inclined at an angle with the ground, and screwing down a bolt which is used for fixedly connecting the lower needle slideway and arranged on the outer side of the support plate II; loosening the bolt I, adjusting the side baffle to enable the inclination of the side baffle to be parallel to the groove II on the upper surface of the lower needle slideway, and then transversely penetrating the ejector rod into the support plate III to be fixedly connected with the side baffle; pushing the ejector rod to push the side baffle to slide left and right on the upper surface of the lower needle slideway until the distance between the side baffle and the support plate II is greater than the length of the needle thread, and screwing the bolt I to fix the ejector rod;

Step three, starting a transmission mechanism: the switch on the transmission mechanism is turned on, the power module drives the transmission gear to rotate, the linkage gear meshed with the transmission gear starts to rotate so as to drive the gear I to coaxially rotate, and at the moment, the gear II meshed with the gear I also starts to rotate and drives the bearing in the bearing seat to rotate; the bearing rotates to drive the rotating shaft to rotate, so that the upper roller and the lower roller are driven to rotate relatively, and the upper needle roller starts to rotate along with the lower roller;

Step four, flattening the needle tail: and the needle tail of the needle thread to be formed is aligned with the inner side surface of the support plate II and is horizontally placed from the upper surface of the lower needle slideway, when the needle thread to be formed slides to the lower end of the lower needle slideway along the top end of the lower needle slideway and contacts the lower roller and the upper needle roller, the needle thread realizes needle feeding along a groove I engraved on the upper needle roller and rotates along with the lower roller and the upper needle roller, and when the needle thread rotates to the highest point, the needle tail is bitten into a roll gap between the upper roller and the lower roller so as to realize flattening of the needle tail.

3. advantageous effects

compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) according to the needle wire forming device and the needle wire forming method, the flat tail end is formed, the groove I is formed in the outer surface of the upper needle roller along the axial direction of the upper needle roller, so that the needle wire to be formed can be automatically fed;

(2) According to the needle thread forming device and the needle thread forming method, the needle thread sliding way is obliquely arranged at an angle with the ground, and the distance between the side baffle and the support plate II is larger than the length of the needle thread, so that the needle thread can transversely slide down along the needle thread sliding way;

(3) According to the needle wire forming device and the needle wire forming method, the connecting rod penetrates through the rubber pads to be connected with the bearing seats which are symmetrically distributed up and down, and when the gap between the bearing seats is adjusted, the rubber pads are elastically deformed and have a certain buffering effect;

(4) According to the needle wire forming device and the needle wire forming method, the connecting rod is matched with the nut to press the bearing block downwards so as to adjust the distance between the upper roller and the lower roller;

(5) According to the needle wire forming device and the needle wire forming method with the flat tail end, the number of nuts matched on the connecting rod is increased so as to achieve the purpose of stabilizing the bearing seat;

(6) According to the needle thread forming device and the needle thread forming method with the flat tail end, the upper needle roller and the lower roller are clamped through the shaft II, so that the parts can be conveniently overhauled and replaced;

(7) According to the needle thread forming device and the needle thread forming method with the flat tail end, the needle storage funnel is additionally arranged, so that the formed needle thread can fall into the needle storage funnel, and the needle thread is convenient to collect and arrange;

(8) According to the needle thread forming device and the needle thread forming method, the grooves I in the outer surface of the upper needle roller are arranged discontinuously along the axial direction, and the side baffles can slide left and right along the upper surface of the lower needle slideway in parallel with the grooves II so as to be suitable for needle threads with different lengths;

(9) according to the needle wire forming device and the needle wire forming method with the flat tail end, the joint of the flattened part of the needle wire and the needle body can ensure that the needle is not easy to fall off after the metal spring needle handle is connected with the needle body, so that the problems that the metal spring needle handle is not firm when connected with the needle body and the like are effectively solved.

Drawings

FIG. 1 is a schematic perspective view of a pin tail forming apparatus according to the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of upper and lower roll collars

FIG. 3 is a schematic structural view before needle thread forming;

FIG. 4 is a schematic structural view of the needle thread after molding;

FIG. 5 is a structural view of a needle tail winding spring wire;

FIG. 6 is a schematic view of the roll surface structure of the upper roll and the lower roll;

FIG. 7 is a top view of the lower needle slide.

In the figure: 1-a bottom plate; 2-a transmission mechanism; 3-a transmission gear; 4-linkage gear; 5-gear I; 6-gear II; 7-bearing seats; 8-a rotating shaft; 9-rubber pad; 10-a connecting rod; 11-a nut; 12-upper roller; 13-lower roll; 14-a needle roller; 15-needle storage funnel; 16-support plate I; 17-needle slide; 18-support plate II; 19-support plate iii; 20-a top rod; 21-bolt I; 22-side baffle; 23-needle thread; 24-groove I; 25-groove II; 1201-through hole i; 1202-Axis I; 1301-through hole II; 1302-Axis II; 2301-needle tail; 2302-spring wire.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.