WO2019010806A1 - Needle screwing mechanism and screwing device - Google Patents
Needle screwing mechanism and screwing device Download PDFInfo
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- WO2019010806A1 WO2019010806A1 PCT/CN2017/101234 CN2017101234W WO2019010806A1 WO 2019010806 A1 WO2019010806 A1 WO 2019010806A1 CN 2017101234 W CN2017101234 W CN 2017101234W WO 2019010806 A1 WO2019010806 A1 WO 2019010806A1
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- idler
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Definitions
- the invention relates to the technical field of labeling devices, in particular to a rotary rod mechanism and a spin-on device.
- an integrated disposable syringe has appeared in the field of medical devices, and its structure includes a needle bar, a needle tube, a rubber stopper and the like, and the syrup has been injected into the needle tube at the production stage to realize packaging, thereby ensuring It will not be polluted during transportation, use, etc.
- the one-piece disposable syringe is produced by screwing the aligned needle bars into the rubber plugs in the needle tube one by one, and attaching a label to the outside of the needle tube.
- a rotary mechanism comprising:
- the fixed wheel assembly is disposed on the mounting seat, and the fixed wheel assembly includes at least one fixed idler pulley for being disposed on one side of the active turntable and driven by friction Needle rotation;
- the rotating wheel assembly is disposed on the mounting seat, and the rotating wheel assembly package Included in the at least one rotary idler disposed downstream of the fixed idler, the rotary idler is used for sliding contact with the needle tube to prevent the needle tube and the needle rod from being excessively tightened and broken, and the piston inside the needle tube is damaged, or the piston is up and down Displacement causes the syrup in the tube to overflow; and
- a torsion assembly rotatably disposed on the mount, the rotary idler being disposed on the torsion assembly, and the torsion assembly for providing the rotary idler rotational torque.
- the turntable rotates to at least one rotary idler located downstream of the fixed idler pulley, and the rotary idler achieves slipping under the appropriate rotational torque provided by the torsion assembly, thereby preventing further rotation of the needle tube and excessive tightening with the needle bar, ensuring that the needle tube does not Squeezing and rupturing eliminates the safety hazard of product scrapping, guarantees product quality, and is conducive to improving product quality and economic benefits.
- three of the fixed idlers are included, and the three fixed idlers are sequentially spaced apart along the rotational direction of the active turntable. In this way, the needle tube is driven by the friction of the three fixed idlers in sequence to achieve three rotations, thereby ensuring that certain large-rotation syringe products achieve reliable rotation of the needle bar and the needle tube.
- the three fixed idlers are staggered in the longitudinal direction. In this way, interference collision between two adjacent fixed idlers can be avoided, and the size of the occupied space can be reduced, so that the overall volume of the device is more compact and light.
- the torsion assembly includes a torsion spring, a fixing seat disposed on the mounting seat and having a mounting hole, a friction plate group and a support rod group rotatably disposed in the mounting hole
- the support rod set includes a sleeve provided with an annular recess, a rotary rod embedded in the sleeve and configured to support the rotary idler, and the hole wall of the mounting hole protrudes from the center direction with an annular card
- the torsion spring is disposed between the annular recess and the annular card table
- the friction plate group includes a first friction plate fixed to an end of the rotating rod, and is disposed in the mounting hole Inner and rotating with the first friction plate a second friction plate and a friction body disposed between the first friction plate and the second friction plate for generating a frictional action.
- the tightness of the torsion spring can be flexibly adjusted, and the friction rotation of the first friction plate, the friction body and the second friction plate can be matched, so that the torque component product can be appropriately rotated.
- Torque is applied to the rotating idler to ensure a protective slip when the needle bar is in contact, ensuring that the needle is not torn.
- the hole wall of the mounting hole is provided with a first thread
- the outer cylinder wall of the sleeve is provided with a second thread
- the first thread is screwed with the second thread.
- the mounting seat is further provided with a through slot and a rotating shaft located in the through slot, and a rotating portion of the rotating rod away from the rotating idler is provided with a rotating portion, and the rotating portion is rotatable
- the utility model is disposed on the rotating shaft and is matched with the groove walls on both sides of the through groove. In this way, the rotating rod can realize a small angle swing on the rotating shaft to ensure that the rotating idler wheel achieves a certain position when the needle tube passes and contacts, thereby protecting the needle tube.
- the torsion assembly includes a first torsion assembly and a second torsion assembly spaced apart in a rotational direction of the active dial, the rotary idler including a first rotary idler and a second rotary idler
- the first rotary idler is disposed on the first torsion assembly
- the second rotary idler is disposed on the second torsion assembly. This can double protect the needle tube and further ensure product quality.
- the utility model further includes an adjusting nut and an adjustable tension spring
- the mounting seat is provided with an adjusting screw hole
- the adjusting nut is screwed into the adjusting screw hole
- one end of the adjustable tension spring is The rotating portion abuts and the other end abuts against the adjusting nut.
- the present invention also provides a spin-on device comprising an active turntable and a rotary rod mechanism as described above, the edge of the active turntable being recessed inwardly with at least one receiving recess for receiving a needle tube, A support bearing is rotatably mounted on each side of the recessed portion, the rotary rod mechanism is spaced apart from the active turntable, and two of the support bearings cooperate with the fixed idler to form a spin-fit pitch. , two The bearing between the bearing and the rotating idler forms a spacing.
- the rotary rod mechanism is mounted on one side of the rotary turntable, and the at least one fixed idler of the fixed wheel assembly is arranged by mounting the torsion assembly on the mount and adjusting the appropriate rotational torque value.
- the needle and needle bar that complete the initial tightening continue to rotate with the active turntable to at least one rotary idler located downstream of the fixed idler, and the rotary idler achieves slipping under the appropriate rotational torque provided by the torsion assembly, thereby avoiding further rotation of the needle.
- the result is excessive tightening with the needle bar, ensuring that the needle tube will not be crushed and broken, eliminating the safety hazard of product scrapping, ensuring product quality, and improving product quality and economic benefits of the enterprise.
- FIG. 1 is a front elevational view showing a rotary lever mechanism according to an embodiment of the present invention
- FIG. 2 is a side view showing the structure of a rotary drum of the embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a spin-on device according to an embodiment of the present invention.
- first and second in the present invention do not represent a specific number and order, but are merely used for distinguishing names.
- a rotating rod 442 mechanism includes: a mounting base 100; a fixed wheel assembly 200, the fixed wheel assembly 200 is disposed on the mounting base 100, and the The fixed wheel assembly 200 includes at least one fixed idler gear 210 for arranging on one side of the drive carousel 700 and driving the needle tube to rotate by friction; a rotating wheel assembly 300, the rotating wheel assembly 300 being disposed on The mounting base 100, and the rotating wheel assembly 300 includes at least one rotating idler 310 disposed downstream of the fixed idler 210, the rotating idler 310 is used for sliding contact with the needle tube to prevent the needle and the needle
- the rod is excessively tightened and broken, and the piston in the needle tube is damaged, or the piston is displaced up and down to overflow the potion; and the torsion assembly 400 is rotatably disposed on the mounting seat 100, the rotating idler 310 is disposed on the torsion assembly 400, and the torsion assembly 400 is configured to provide a rotational torque of the rotary
- the torsion assembly 400 on the mounting base 100 and adjusting a suitable rotational torque value, at least one fixed idler gear 210 of the fixed wheel assembly 200 is then disposed on one side of the active turntable 700.
- the needle tube rotated by the active turntable 700 is in rotational contact with the fixed idler gear 210, the needle tube is rotated by the frictional force to complete the spin-fit with the needle bar clamped on the clamping rod mechanism; then the preliminary tightening is completed.
- the needle and needle bar continue to rotate with the active carousel 700 to at least one of the rotary idlers 310 downstream of the fixed idler gear 210.
- the rotary idler 310 achieves slippage under the appropriate rotational torque provided by the torsion assembly 400, thereby avoiding further needle insertion. Rotation leads to the needle rod
- the degree of tightening ensures that the needle tube will not be crushed and broken, which eliminates the safety hazard of product scrapping, ensures product quality, and is conducive to improving product quality and economic benefits of the enterprise.
- the fixed idler 210 may be made of a material or a structure of a plastic wheel or a steel wheel outer peripheral apron, which can improve the contact friction with the needle tube and avoid slippage.
- three of the fixed idlers 210 are staggered in the longitudinal direction. In this way, the interference collision between the two adjacent fixed idlers 210 can be avoided, and the size of the occupied space can be reduced, so that the overall volume of the device is more compact and light.
- the number and arrangement of the fixed idlers 210 in other embodiments may also be other variations.
- the torsion assembly 400 includes a torsion spring 410, a fixing base 420 disposed on the mounting base 100 and having a mounting hole, a friction plate group 430 rotatably disposed in the mounting hole, and a support rod group 440.
- the support rod set 440 includes a sleeve 441 provided with an annular recess 441a, a rotary rod 442 embedded in the sleeve 441 and configured to support the rotary idler 310, the hole wall of the mounting hole is centered An annular pin table 421 is protruded from the direction, and the torsion spring 410 is pressed between the annular recess 441a and the annular card table 421.
- the friction plate group 430 includes an end fixed to the rotating rod 442. a first friction plate 431 of the portion, a second friction plate 432 disposed in the mounting hole and rotatably engaged with the first friction plate 431, and a first friction plate 431 and the second portion disposed on the first friction plate 431 A friction body between the friction plates 432 for generating friction.
- the tightness of the torsion spring 410 can be flexibly adjusted, and the frictional rotation of the first friction piece 431 and the second friction piece 432 can be matched to make the torque component 400 product.
- a suitable rotational torque imparts to the rotating idler 310 to ensure a protective slip when in contact with the needle bar, ensuring that the needle is not torn.
- the bottom of the hole of the mounting hole is provided with an opening, and the fixing base is fixed to the mounting base 100.
- the end of the fixing shaft extends through the opening and is fixedly connected with the second friction plate 432, so that the second friction plate 432 does not The first friction plate 431 is rotated, and the frictional force is generated by the friction body.
- the hole wall of the mounting hole is provided with a first thread
- the outer cylinder wall of the sleeve 441 is provided with a second thread
- the first thread is screwed with the second thread. Therefore, it is convenient for the syringe products of different sizes and specifications to adjust the screwing depth of the sleeve 441 and the fixing seat 420, thereby adjusting the torque of the torsion spring 410 to an appropriate value to meet the protection requirements of different products and to improve the applicable range of the device.
- the mounting base 100 is further provided with a through slot 110 and a rotating shaft 120 located in the through slot 110.
- the rotating rod 442 is disposed away from one end of the rotating idler 310.
- the rotating portion is rotatably disposed on the rotating shaft 120 and is in clearance with the groove walls on both sides of the through groove 110. In this way, the rotating rod 442 can realize a small angle swing on the rotating shaft 120 to ensure that the rotating idler 310 achieves a certain position when the needle tube passes and contacts, thereby protecting the needle tube.
- the torsion assembly 400 includes a first torsion assembly and a second torsion assembly spaced apart along a rotational direction of the active carousel 700, the rotary idler 310
- the first rotary idler 310 and the second rotary idler 310 are disposed on the first torsion assembly, and the second rotary idler 310 is disposed on the second torsion assembly . This can double protect the needle tube and further ensure product quality.
- an adjustment nut 500 and an adjustable tension spring 600 are further included.
- the mounting base 100 is provided with an adjusting screw hole, and the adjusting nut 500 is screwed on In the adjustment screw hole, one end of the adjustable tension spring 600 abuts against the rotating portion, and the other end abuts against the adjusting nut 500.
- the tension of the rotating rod 442 can be flexibly adjusted, so that the rotating idler 310 can be adapted to the compression of the different sizes of the needle tube to avoid damage caused by excessive pressing force.
- the present invention further provides a spin-on device comprising an active turntable 700 and a rotating rod 442 mechanism as described above, the edge of the active turntable 700 being recessed inwardly with at least one capacity for receiving the needle tube a receiving groove 800 is disposed on each side of the receiving groove 710, and a supporting bearing 800 is rotatably mounted on the two sides of the receiving groove 710.
- the rotating rod 442 mechanism is spaced apart from the driving turntable 700, and the two supporting bearings are disposed.
- the engagement between the 800 and the fixed idler gear 210 forms a spin-on spacing, and the two bearing bearings 800 cooperate with the rotary idler 310 to form a seating pitch.
- the rotating rod 442 mechanism is mounted on one side of the rotating turntable, and the twisting is performed.
- the force assembly 400 is mounted on the mount 100 and adjusted for a suitable rotational torque value, after which at least one fixed idler 210 of the fixed wheel assembly 200 is disposed on one side of the drive disc 700 so as to rotate with the drive disc 700
- the needle tube is in rotational contact with the fixed idler gear 210, the needle tube is rotated by the frictional force to complete the screwing with the needle bar clamped on the clamping rod mechanism; after that, the needle tube and the needle bar that complete the preliminary tightening continue with the active turntable 700.
- the rotary idler 310 achieves slippage under the appropriate rotational torque provided by the torsion assembly 400, thereby preventing further rotation of the needle tube resulting in excessive tightening of the needle bar, ensuring The needle tube will not be crushed and ruptured, which eliminates the safety hazard of product scrapping, ensures product quality, and is conducive to improving product quality and economic benefits of the enterprise.
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Abstract
A needle screwing mechanism and a screwing device, the needle screwing mechanism comprising: a mounting base (100); a fixed wheel assembly (200), the fixed wheel assembly (200) being disposed on the mounting base (100) and comprising at least a fixed idler wheel (210) disposed at one side of a driving turnplate (700) and used for driving a barrel to rotate by means of a friction force; a rotary wheel assembly (300), the rotary wheel assembly (300) being disposed on the mounting base (100) and comprising at least one rotary idler wheel (310) disposed at the downstream of the fixed idler wheel and used for slipping when in contact with the barrel so as to prevent the barrel from being cracked due to excessive screwing between the barrel and a needle or/and the medicinal liquid from overflowing out of the barrel due to the damage of a piston in the barrel or the vertical movement of the piston; and a torsion assembly (400) rotationally disposed on the mounting base (100), the rotary idler wheel (310) being disposed on the torsion assembly (400). Therefore, the barrel and the needle are prevented from being excessively screwed caused by further rotation of the barrel, it is ensured that the barrel is not tightly pressed and cracked, and the potential risk of scrapping of a product is eliminated, the product quality is guaranteed, the product quality can be improved, and the economic benefits of enterprises can be increased.
Description
本发明涉及贴标设备技术领域,特别是涉及一种旋杆机构及旋装装置。The invention relates to the technical field of labeling devices, in particular to a rotary rod mechanism and a spin-on device.
为了保证药水卫生而不被污染,医疗器械领域中出现一种一体式一次性注射器,其结构包括针杆、针管、胶塞等部分,药水在生产阶段已经注入到针管内实现封装,由此确保在运输、使用等过程中不会受到污染。该一体式一次性注射器的生产过程为:将排列整齐的针杆一一对应地旋入针管内的胶塞中,并在针管外贴上一张标签。然而现有的贴标设备中没有针对针杆与针管进行旋装的有效加工机构,导致针杆与针管的装配质量无法达到产品要求,且针杆与针管的旋紧程度无法可靠保证,容易导致针杆与针管过度旋紧而使得针管紧压破裂,以及针管内活塞损环,或者活塞上下移位使管内药水溢出,致使产品报废,影响产品质量和生产企业的经济效益。In order to ensure the sanitation of the syrup without being polluted, an integrated disposable syringe has appeared in the field of medical devices, and its structure includes a needle bar, a needle tube, a rubber stopper and the like, and the syrup has been injected into the needle tube at the production stage to realize packaging, thereby ensuring It will not be polluted during transportation, use, etc. The one-piece disposable syringe is produced by screwing the aligned needle bars into the rubber plugs in the needle tube one by one, and attaching a label to the outside of the needle tube. However, there is no effective processing mechanism for the needle bar and the needle tube to be screwed in the existing labeling device, so that the assembly quality of the needle bar and the needle tube cannot meet the product requirements, and the tightening degree of the needle bar and the needle tube cannot be reliably ensured, which is easy to cause The needle bar and the needle tube are excessively tightened to cause the needle tube to be crushed and broken, and the piston in the needle tube is damaged, or the piston is displaced up and down to overflow the tube, thereby causing the product to be scrapped, which affects the product quality and the economic benefit of the production enterprise.
发明内容Summary of the invention
基于此,本发明有必要提供一种旋杆机构及旋装装置,能够使针杆与针管可靠旋紧,保证产品质量,避免出现因过度旋紧导致针管紧压破裂,导致产品报废的问题发生,有利于提升产品质量和企业的经济效益。Based on this, it is necessary for the present invention to provide a rotary rod mechanism and a screw-on device, which can reliably tighten the needle bar and the needle tube, ensure product quality, and avoid the problem that the product is scrapped due to over-tightening and causing compression and rupture of the needle tube. It is conducive to improving product quality and economic benefits of the company.
其技术方案如下:Its technical solutions are as follows:
一种旋杆机构,包括:A rotary mechanism comprising:
安装座;Mounting seat
固定轮组件,所述固定轮组件设置于所述安装座上,且所述固定轮组件包括至少一个固定惰轮,所述固定惰轮用于布置在主动转盘的一侧、并通过摩擦力驱动针管旋转;a fixed wheel assembly, the fixed wheel assembly is disposed on the mounting seat, and the fixed wheel assembly includes at least one fixed idler pulley for being disposed on one side of the active turntable and driven by friction Needle rotation;
旋转轮组件,所述旋转轮组件设置于所述安装座上,且所述旋转轮组件包
括设置于所述固定惰轮的下游的至少一个旋转惰轮,所述旋转惰轮用于与针管接触打滑以防止针管与针杆过度旋紧而破裂,以及针管内活塞损环,或者活塞上下移位使管内药水溢出;及a rotating wheel assembly, the rotating wheel assembly is disposed on the mounting seat, and the rotating wheel assembly package
Included in the at least one rotary idler disposed downstream of the fixed idler, the rotary idler is used for sliding contact with the needle tube to prevent the needle tube and the needle rod from being excessively tightened and broken, and the piston inside the needle tube is damaged, or the piston is up and down Displacement causes the syrup in the tube to overflow; and
扭力组件,所述扭力组件可转动设置于所述安装座上,所述旋转惰轮设置于所述扭力组件上,且所述扭力组件用于提供所述旋转惰轮转动扭力。a torsion assembly rotatably disposed on the mount, the rotary idler being disposed on the torsion assembly, and the torsion assembly for providing the rotary idler rotational torque.
上述旋杆机构使用时,通过将扭力组件安装在安装座上并调节好合适的转动扭力值,之后将固定轮组件的至少一个固定惰轮布置于主动转盘的一侧,以使得随主动转盘转动而来的针管与固定惰轮转动接触时,在摩擦力的驱动下针管实现旋转从而与夹固于夹杆机构上的针杆完成旋装;之后完成初步旋紧的针管和针杆继续随主动转盘转动至位于固定惰轮下游的至少一个旋转惰轮处,旋转惰轮在扭力组件提供的合适转动扭力作用下实现打滑,从而避免进一步使针管旋转导致与针杆过度旋紧,确保针管不会紧压破裂,消除了产品报废的安全隐患,保证了产品质量,有利于提升产品质量和企业的经济效益。When the above-mentioned rotating rod mechanism is used, by mounting the torsion assembly on the mounting seat and adjusting the appropriate rotational torque value, at least one fixed idler of the fixed wheel assembly is then disposed on one side of the active turntable so as to rotate with the active turntable. When the needle tube is in rotational contact with the fixed idler, the needle tube is rotated by the friction force to complete the screwing with the needle rod clamped on the clamping rod mechanism; after that, the needle tube and the needle rod which are initially tightened continue to follow the initiative. The turntable rotates to at least one rotary idler located downstream of the fixed idler pulley, and the rotary idler achieves slipping under the appropriate rotational torque provided by the torsion assembly, thereby preventing further rotation of the needle tube and excessive tightening with the needle bar, ensuring that the needle tube does not Squeezing and rupturing eliminates the safety hazard of product scrapping, guarantees product quality, and is conducive to improving product quality and economic benefits.
下面对本申请的技术方案作进一步地说明:The technical solution of the present application is further described below:
在其中一个实施例中,包括三个所述固定惰轮,三个所述固定惰轮沿所述主动转盘的转动方向依次间隔设置。如此使针管依次通过三个固定惰轮的摩擦力驱动而实现三次旋转,从而确保某些大旋距的注射器产品实现针杆与针管的可靠旋装。In one of the embodiments, three of the fixed idlers are included, and the three fixed idlers are sequentially spaced apart along the rotational direction of the active turntable. In this way, the needle tube is driven by the friction of the three fixed idlers in sequence to achieve three rotations, thereby ensuring that certain large-rotation syringe products achieve reliable rotation of the needle bar and the needle tube.
在其中一个实施例中,三个所述固定惰轮沿纵向交错布置。如此可避免相邻两个固定惰轮发生干涉碰撞,同时可以减小占用空间的大小,使设备的整体体积更加紧凑、轻小。In one of the embodiments, the three fixed idlers are staggered in the longitudinal direction. In this way, interference collision between two adjacent fixed idlers can be avoided, and the size of the occupied space can be reduced, so that the overall volume of the device is more compact and light.
在其中一个实施例中,所述扭力组件包括扭力弹簧、设置于所述安装座上并设有安装孔的固定座、可转动设置于所述安装孔内的摩擦片组和支撑杆组,所述支撑杆组包括设有环形凹台的套筒、嵌固于所述套筒内并用于支撑所述旋转惰轮的旋杆,所述安装孔的孔壁向中心方向凸设有环形卡台,所述扭力弹簧抵压设置于所述环形凹台和所述环形卡台之间,所述摩擦片组包括固定于所述旋杆的端部的第一摩擦片、设置于所述安装孔内并与所述第一摩擦片转动配合
的第二摩擦片、及设置于所述第一摩擦片和所述第二摩擦片之间用以产生摩擦作用的摩擦体。如此通过调整支撑杆组与固定座的安装孔的装配程度可以灵活调整扭力弹簧的松紧程度,进而配合第一摩擦片、摩擦体与第二摩擦片的摩擦转动,可以使扭力组件产品合适的转动扭力给旋转惰轮,以确保在于针杆接触时产生保护性打滑,保证不会拧爆针管。In one embodiment, the torsion assembly includes a torsion spring, a fixing seat disposed on the mounting seat and having a mounting hole, a friction plate group and a support rod group rotatably disposed in the mounting hole, The support rod set includes a sleeve provided with an annular recess, a rotary rod embedded in the sleeve and configured to support the rotary idler, and the hole wall of the mounting hole protrudes from the center direction with an annular card The torsion spring is disposed between the annular recess and the annular card table, and the friction plate group includes a first friction plate fixed to an end of the rotating rod, and is disposed in the mounting hole Inner and rotating with the first friction plate
a second friction plate and a friction body disposed between the first friction plate and the second friction plate for generating a frictional action. Thus, by adjusting the assembly degree of the support rod group and the mounting hole of the fixing seat, the tightness of the torsion spring can be flexibly adjusted, and the friction rotation of the first friction plate, the friction body and the second friction plate can be matched, so that the torque component product can be appropriately rotated. Torque is applied to the rotating idler to ensure a protective slip when the needle bar is in contact, ensuring that the needle is not torn.
在其中一个实施例中,所述安装孔的孔壁设有第一螺纹,所述套筒的外筒壁设有第二螺纹,所述第一螺纹与所述第二螺纹螺纹旋接。如此便于针对不同尺寸和规格的注射器产品,调整套筒与固定座的旋入深度,进而调节扭力弹簧的扭力大小至合适值,以适应不同产品的保护需求,提升设备的适用范围。In one embodiment, the hole wall of the mounting hole is provided with a first thread, and the outer cylinder wall of the sleeve is provided with a second thread, and the first thread is screwed with the second thread. This makes it easy to adjust the screwing depth of the sleeve and the fixed seat for the syringe products of different sizes and specifications, and then adjust the torque of the torsion spring to an appropriate value to meet the protection requirements of different products and improve the applicable range of the device.
在其中一个实施例中,所述安装座还设有通槽、及位于所述通槽内的转轴,所述旋杆远离所述旋转惰轮的一端设有转动部,所述转动部可转动设置于所述转轴上、并与所述通槽的两侧槽壁间隙配合。如此使得旋杆可以在转轴上实现小角度的摆动,以保证旋转惰轮在针管经过而接触时实现一定的让位,以对针管起到保护作用。In one embodiment, the mounting seat is further provided with a through slot and a rotating shaft located in the through slot, and a rotating portion of the rotating rod away from the rotating idler is provided with a rotating portion, and the rotating portion is rotatable The utility model is disposed on the rotating shaft and is matched with the groove walls on both sides of the through groove. In this way, the rotating rod can realize a small angle swing on the rotating shaft to ensure that the rotating idler wheel achieves a certain position when the needle tube passes and contacts, thereby protecting the needle tube.
在其中一个实施例中,所述扭力组件包括沿所述主动转盘的转动方向间隔设置的第一扭力组件和第二扭力组件,所述旋转惰轮包括第一旋转惰轮和第二旋转惰轮,所述第一旋转惰轮设置于所述第一扭力组件上,所述第二旋转惰轮设置于所述第二扭力组件上。如此可以对针管起到双重保护作用,进一步确保产品质量。In one embodiment, the torsion assembly includes a first torsion assembly and a second torsion assembly spaced apart in a rotational direction of the active dial, the rotary idler including a first rotary idler and a second rotary idler The first rotary idler is disposed on the first torsion assembly, and the second rotary idler is disposed on the second torsion assembly. This can double protect the needle tube and further ensure product quality.
在其中一个实施例中,还包括调节螺母和可调张力弹簧,所述安装座设有调节螺孔,所述调节螺母旋装于所述调节螺孔内,所述可调张力弹簧的一端与所述转动部抵接、另一端与所述调节螺母抵接。如此可灵活调整旋杆的靠紧张力,以使旋转惰轮适应不同尺寸的针管压紧,避免压紧力过大出现损坏。In one embodiment, the utility model further includes an adjusting nut and an adjustable tension spring, the mounting seat is provided with an adjusting screw hole, and the adjusting nut is screwed into the adjusting screw hole, and one end of the adjustable tension spring is The rotating portion abuts and the other end abuts against the adjusting nut. In this way, the tension of the rotary rod can be flexibly adjusted, so that the rotary idler can be adapted to the compression of the different sizes of the needle tube to avoid damage caused by excessive pressing force.
本发明还提供一种旋装装置,其包括主动转盘和如上所述的旋杆机构,所述主动转盘的边缘向内凹设有至少一个用于容纳针管的容置凹槽,位于所述容置凹槽的两侧分别可转动安装有一个承托轴承,所述旋杆机构与所述主动转盘间隔设置,且两个所述承托轴承与所述固定惰轮之间配合形成旋装间距,两个
所述承托轴承与所述旋转惰轮之间配合形成让位间距。The present invention also provides a spin-on device comprising an active turntable and a rotary rod mechanism as described above, the edge of the active turntable being recessed inwardly with at least one receiving recess for receiving a needle tube, A support bearing is rotatably mounted on each side of the recessed portion, the rotary rod mechanism is spaced apart from the active turntable, and two of the support bearings cooperate with the fixed idler to form a spin-fit pitch. , two
The bearing between the bearing and the rotating idler forms a spacing.
上述旋装装置工作时,将旋杆机构安装于转动转盘的一侧,通过将扭力组件安装在安装座上并调节好合适的转动扭力值,之后将固定轮组件的至少一个固定惰轮布置于主动转盘的一侧,以使得随主动转盘转动而来的针管与固定惰轮转动接触时,在摩擦力的驱动下针管实现旋转从而与夹固于夹杆机构上的针杆完成旋装;之后完成初步旋紧的针管和针杆继续随主动转盘转动至位于固定惰轮下游的至少一个旋转惰轮处,旋转惰轮在扭力组件提供的合适转动扭力作用下实现打滑,从而避免进一步使针管旋转导致与针杆过度旋紧,确保针管不会紧压破裂,消除了产品报废的安全隐患,保证了产品质量,有利于提升产品质量和企业的经济效益。When the above-mentioned spin-fit device is in operation, the rotary rod mechanism is mounted on one side of the rotary turntable, and the at least one fixed idler of the fixed wheel assembly is arranged by mounting the torsion assembly on the mount and adjusting the appropriate rotational torque value. One side of the active turntable, so that when the needle tube rotated by the active turntable is in rotational contact with the fixed idler, the needle tube is rotated by the frictional force to complete the screwing with the needle bar clamped on the clamping rod mechanism; The needle and needle bar that complete the initial tightening continue to rotate with the active turntable to at least one rotary idler located downstream of the fixed idler, and the rotary idler achieves slipping under the appropriate rotational torque provided by the torsion assembly, thereby avoiding further rotation of the needle. The result is excessive tightening with the needle bar, ensuring that the needle tube will not be crushed and broken, eliminating the safety hazard of product scrapping, ensuring product quality, and improving product quality and economic benefits of the enterprise.
图1为本发明实施例所述的旋杆机构的正视结构示意图;1 is a front elevational view showing a rotary lever mechanism according to an embodiment of the present invention;
图2为本发明实施例所述的旋杆击鼓的侧视结构示意图;2 is a side view showing the structure of a rotary drum of the embodiment of the present invention;
图3为本发明实施例所述的旋装装置的结构示意图。FIG. 3 is a schematic structural diagram of a spin-on device according to an embodiment of the present invention.
附图标记说明:Description of the reference signs:
100、安装座,110、通槽,120、转轴,200、固定轮组件,210、固定惰轮,300、旋转轮组件,310、旋转惰轮,400、扭力组件,410、扭力弹簧,420、固定座,421、环形卡台,430、摩擦片组,431、第一摩擦片,432、第二摩擦片,440、支撑杆组,441、套筒,441a、环形凹台,442、旋杆,500、调节螺母,600、可调张力弹簧,700、主动转盘,710、容置凹槽,800、承托轴承。100, mount, 110, through slot, 120, shaft, 200, fixed wheel assembly, 210, fixed idler, 300, rotating wheel assembly, 310, rotary idler, 400, torsion assembly, 410, torsion spring, 420, Fixing seat, 421, annular card table, 430, friction plate set, 431, first friction plate, 432, second friction plate, 440, support rod set, 441, sleeve, 441a, annular recessed table, 442, rotary rod , 500, adjusting nut, 600, adjustable tension spring, 700, active turntable, 710, receiving groove, 800, bearing support.
为使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及具体实施方式,对本发明进行进一步的详细说明。应当理解的是,此处所描述的具体实施方式仅用以解释本发明,并不限定本发明的保护范围。The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.
需要说明的是,当元件被称为“固设于”、“设置于”或“安设于”另一个元件,它
可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件;一个元件与另一个元件固定连接的具体方式可以通过现有技术实现,在此不再赘述,优选采用螺纹连接的固定方式。It should be noted that when an element is referred to as being "fixed on", "set on", or "mounted on" another component, it
It is possible to directly on another component or to have a central component. When an element is considered to be "connected" to another element, it can be directly connected to the other element or the central element can be present at the same time. The specific manner in which one element is fixedly connected to the other element can be achieved by the prior art. Further, it is preferable to use a fixing method of a screw connection.
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.
本发明中所述“第一”、“第二”不代表具体的数量及顺序,仅仅是用于名称的区分。The terms "first" and "second" in the present invention do not represent a specific number and order, but are merely used for distinguishing names.
如图1所示,为本发明展示的一种实施例的旋杆442机构,包括:安装座100;固定轮组件200,所述固定轮组件200设置于所述安装座100上,且所述固定轮组件200包括至少一个固定惰轮210,所述固定惰轮210用于布置在主动转盘700的一侧、并通过摩擦力驱动针管旋转;旋转轮组件300,所述旋转轮组件300设置于所述安装座100上,且所述旋转轮组件300包括设置于所述固定惰轮210的下游的至少一个旋转惰轮310,所述旋转惰轮310用于与针管接触打滑以防止针管与针杆过度旋紧而破裂,以及针管内活塞损环,或者活塞上下移位使管内药水溢出;及扭力组件400,所述扭力组件400可转动设置于所述安装座100上,所述旋转惰轮310设置于所述扭力组件400上,且所述扭力组件400用于提供所述旋转惰轮310转动扭力。As shown in FIG. 1 , a rotating rod 442 mechanism according to an embodiment of the present invention includes: a mounting base 100; a fixed wheel assembly 200, the fixed wheel assembly 200 is disposed on the mounting base 100, and the The fixed wheel assembly 200 includes at least one fixed idler gear 210 for arranging on one side of the drive carousel 700 and driving the needle tube to rotate by friction; a rotating wheel assembly 300, the rotating wheel assembly 300 being disposed on The mounting base 100, and the rotating wheel assembly 300 includes at least one rotating idler 310 disposed downstream of the fixed idler 210, the rotating idler 310 is used for sliding contact with the needle tube to prevent the needle and the needle The rod is excessively tightened and broken, and the piston in the needle tube is damaged, or the piston is displaced up and down to overflow the potion; and the torsion assembly 400 is rotatably disposed on the mounting seat 100, the rotating idler 310 is disposed on the torsion assembly 400, and the torsion assembly 400 is configured to provide a rotational torque of the rotary idler 310.
上述旋杆442机构使用时,通过将扭力组件400安装在安装座100上并调节好合适的转动扭力值,之后将固定轮组件200的至少一个固定惰轮210布置于主动转盘700的一侧,以使得随主动转盘700转动而来的针管与固定惰轮210转动接触时,在摩擦力的驱动下针管实现旋转从而与夹固于夹杆机构上的针杆完成旋装;之后完成初步旋紧的针管和针杆继续随主动转盘700转动至位于固定惰轮210下游的至少一个旋转惰轮310处,旋转惰轮310在扭力组件400提供的合适转动扭力作用下实现打滑,从而避免进一步使针管旋转导致与针杆过
度旋紧,确保针管不会紧压破裂,消除了产品报废的安全隐患,保证了产品质量,有利于提升产品质量和企业的经济效益。When the above-mentioned rotating rod 442 mechanism is used, by mounting the torsion assembly 400 on the mounting base 100 and adjusting a suitable rotational torque value, at least one fixed idler gear 210 of the fixed wheel assembly 200 is then disposed on one side of the active turntable 700. When the needle tube rotated by the active turntable 700 is in rotational contact with the fixed idler gear 210, the needle tube is rotated by the frictional force to complete the spin-fit with the needle bar clamped on the clamping rod mechanism; then the preliminary tightening is completed. The needle and needle bar continue to rotate with the active carousel 700 to at least one of the rotary idlers 310 downstream of the fixed idler gear 210. The rotary idler 310 achieves slippage under the appropriate rotational torque provided by the torsion assembly 400, thereby avoiding further needle insertion. Rotation leads to the needle rod
The degree of tightening ensures that the needle tube will not be crushed and broken, which eliminates the safety hazard of product scrapping, ensures product quality, and is conducive to improving product quality and economic benefits of the enterprise.
请参照图1,在上述实施例的基础上,包括三个所述固定惰轮210,三个所述固定惰轮210沿所述主动转盘700的转动方向依次间隔设置。如此使针管依次通过三个固定惰轮210的摩擦力驱动而实现三次旋转,从而确保某些大旋距的注射器产品实现针杆与针管的可靠、有效旋装。具体的,固定惰轮210可选是采用塑胶轮或钢轮外周套装胶圈的材质和结构,能够提升与针管的接触摩擦力,避免出现打滑。Referring to FIG. 1, on the basis of the above embodiment, three fixed idlers 210 are included, and the three fixed idlers 210 are sequentially disposed along the rotational direction of the active turntable 700. This allows the needle to be driven three times in turn by the friction of the three fixed idlers 210, thereby ensuring that certain large pitch syringe products achieve reliable and efficient spin-on of the needle and needle. Specifically, the fixed idler 210 may be made of a material or a structure of a plastic wheel or a steel wheel outer peripheral apron, which can improve the contact friction with the needle tube and avoid slippage.
进一步地,三个所述固定惰轮210沿纵向交错布置。如此可避免相邻两个固定惰轮210发生干涉碰撞,同时可以减小占用空间的大小,使设备的整体体积更加紧凑、轻小。当然,作为可替代实施方式,其他实施例中固定惰轮210的数量和布置方式还可以是其他的变形。Further, three of the fixed idlers 210 are staggered in the longitudinal direction. In this way, the interference collision between the two adjacent fixed idlers 210 can be avoided, and the size of the occupied space can be reduced, so that the overall volume of the device is more compact and light. Of course, as an alternative embodiment, the number and arrangement of the fixed idlers 210 in other embodiments may also be other variations.
此外,所述扭力组件400包括扭力弹簧410、设置于所述安装座100上并设有安装孔的固定座420、可转动设置于所述安装孔内的摩擦片组430和支撑杆组440,所述支撑杆组440包括设有环形凹台441a的套筒441、嵌固于所述套筒441内并用于支撑所述旋转惰轮310的旋杆442,所述安装孔的孔壁向中心方向凸设有环形卡台421,所述扭力弹簧410抵压设置于所述环形凹台441a和所述环形卡台421之间,所述摩擦片组430包括固定于所述旋杆442的端部的第一摩擦片431、设置于所述安装孔内并与所述第一摩擦片431转动配合的第二摩擦片432、及设置于所述所述第一摩擦片431和所述第二摩擦片432之间用以产生摩擦作用的摩擦体。如此通过调整支撑杆组440与固定座420的安装孔的装配程度可以灵活调整扭力弹簧410的松紧程度,进而配合第一摩擦片431与第二摩擦片432的摩擦转动,可以使扭力组件400产品合适的转动扭力给旋转惰轮310,以确保在与针杆接触时产生保护性打滑,保证不会拧爆针管。具体的,安装孔的孔底设有孔口,安装座100上还固定有固定轴,固定轴的端部伸过孔口并与第二摩擦片432固定连接,使得第二摩擦片432不会相对第一摩擦片431转动,而通过摩擦体产生摩擦力。
In addition, the torsion assembly 400 includes a torsion spring 410, a fixing base 420 disposed on the mounting base 100 and having a mounting hole, a friction plate group 430 rotatably disposed in the mounting hole, and a support rod group 440. The support rod set 440 includes a sleeve 441 provided with an annular recess 441a, a rotary rod 442 embedded in the sleeve 441 and configured to support the rotary idler 310, the hole wall of the mounting hole is centered An annular pin table 421 is protruded from the direction, and the torsion spring 410 is pressed between the annular recess 441a and the annular card table 421. The friction plate group 430 includes an end fixed to the rotating rod 442. a first friction plate 431 of the portion, a second friction plate 432 disposed in the mounting hole and rotatably engaged with the first friction plate 431, and a first friction plate 431 and the second portion disposed on the first friction plate 431 A friction body between the friction plates 432 for generating friction. Thus, by adjusting the assembly degree of the support hole group 440 and the mounting hole of the fixing base 420, the tightness of the torsion spring 410 can be flexibly adjusted, and the frictional rotation of the first friction piece 431 and the second friction piece 432 can be matched to make the torque component 400 product. A suitable rotational torque imparts to the rotating idler 310 to ensure a protective slip when in contact with the needle bar, ensuring that the needle is not torn. Specifically, the bottom of the hole of the mounting hole is provided with an opening, and the fixing base is fixed to the mounting base 100. The end of the fixing shaft extends through the opening and is fixedly connected with the second friction plate 432, so that the second friction plate 432 does not The first friction plate 431 is rotated, and the frictional force is generated by the friction body.
进一步地,所述安装孔的孔壁设有第一螺纹,所述套筒441的外筒壁设有第二螺纹,所述第一螺纹与所述第二螺纹螺纹旋接。如此便于针对不同尺寸和规格的注射器产品,调整套筒441与固定座420的旋入深度,进而调节扭力弹簧410的扭力大小至合适值,以适应不同产品的保护需求,提升设备的适用范围。Further, the hole wall of the mounting hole is provided with a first thread, and the outer cylinder wall of the sleeve 441 is provided with a second thread, and the first thread is screwed with the second thread. Therefore, it is convenient for the syringe products of different sizes and specifications to adjust the screwing depth of the sleeve 441 and the fixing seat 420, thereby adjusting the torque of the torsion spring 410 to an appropriate value to meet the protection requirements of different products and to improve the applicable range of the device.
如图2所示,更进一步地,所述安装座100还设有通槽110、及位于所述通槽110内的转轴120,所述旋杆442远离所述旋转惰轮310的一端设有转动部,所述转动部可转动设置于所述转轴120上、并与所述通槽110的两侧槽壁间隙配合。如此使得旋杆442可以在转轴120上实现小角度的摆动,以保证旋转惰轮310在针管经过而接触时实现一定的让位,以对针管起到保护作用。As shown in FIG. 2, the mounting base 100 is further provided with a through slot 110 and a rotating shaft 120 located in the through slot 110. The rotating rod 442 is disposed away from one end of the rotating idler 310. The rotating portion is rotatably disposed on the rotating shaft 120 and is in clearance with the groove walls on both sides of the through groove 110. In this way, the rotating rod 442 can realize a small angle swing on the rotating shaft 120 to ensure that the rotating idler 310 achieves a certain position when the needle tube passes and contacts, thereby protecting the needle tube.
如图1所示,在上述任一实施例的基础上,所述扭力组件400包括沿所述主动转盘700的转动方向间隔设置的第一扭力组件和第二扭力组件,所述旋转惰轮310包括第一旋转惰轮310和第二旋转惰轮310,所述第一旋转惰轮310设置于所述第一扭力组件上,所述第二旋转惰轮310设置于所述第二扭力组件上。如此可以对针管起到双重保护作用,进一步确保产品质量。As shown in FIG. 1, on the basis of any of the above embodiments, the torsion assembly 400 includes a first torsion assembly and a second torsion assembly spaced apart along a rotational direction of the active carousel 700, the rotary idler 310 The first rotary idler 310 and the second rotary idler 310 are disposed on the first torsion assembly, and the second rotary idler 310 is disposed on the second torsion assembly . This can double protect the needle tube and further ensure product quality.
如图2和图3所示,在上述任一实施例的基础上,还包括调节螺母500和可调张力弹簧600,所述安装座100设有调节螺孔,所述调节螺母500旋装于所述调节螺孔内,所述可调张力弹簧600的一端与所述转动部抵接、另一端与所述调节螺母500抵接。如此可灵活调整旋杆442的靠紧张力,以使旋转惰轮310适应不同尺寸的针管压紧,避免压紧力过大出现损坏。As shown in FIG. 2 and FIG. 3, on the basis of any of the above embodiments, an adjustment nut 500 and an adjustable tension spring 600 are further included. The mounting base 100 is provided with an adjusting screw hole, and the adjusting nut 500 is screwed on In the adjustment screw hole, one end of the adjustable tension spring 600 abuts against the rotating portion, and the other end abuts against the adjusting nut 500. In this way, the tension of the rotating rod 442 can be flexibly adjusted, so that the rotating idler 310 can be adapted to the compression of the different sizes of the needle tube to avoid damage caused by excessive pressing force.
请参照图3,本发明还提供一种旋装装置,其包括主动转盘700和如上所述的旋杆442机构,所述主动转盘700的边缘向内凹设有至少一个用于容纳针管的容置凹槽710,位于所述容置凹槽710的两侧分别可转动安装有一个承托轴承800,所述旋杆442机构与所述主动转盘700间隔设置,且两个所述承托轴承800与所述固定惰轮210之间配合形成旋装间距,两个所述承托轴承800与所述旋转惰轮310之间配合形成让位间距。Referring to FIG. 3, the present invention further provides a spin-on device comprising an active turntable 700 and a rotating rod 442 mechanism as described above, the edge of the active turntable 700 being recessed inwardly with at least one capacity for receiving the needle tube a receiving groove 800 is disposed on each side of the receiving groove 710, and a supporting bearing 800 is rotatably mounted on the two sides of the receiving groove 710. The rotating rod 442 mechanism is spaced apart from the driving turntable 700, and the two supporting bearings are disposed. The engagement between the 800 and the fixed idler gear 210 forms a spin-on spacing, and the two bearing bearings 800 cooperate with the rotary idler 310 to form a seating pitch.
上述旋装装置工作时,将旋杆442机构安装于转动转盘的一侧,通过将扭
力组件400安装在安装座100上并调节好合适的转动扭力值,之后将固定轮组件200的至少一个固定惰轮210布置于主动转盘700的一侧,以使得随主动转盘700转动而来的针管与固定惰轮210转动接触时,在摩擦力的驱动下针管实现旋转从而与夹固于夹杆机构上的针杆完成旋装;之后完成初步旋紧的针管和针杆继续随主动转盘700转动至位于固定惰轮210下游的至少一个旋转惰轮310处,旋转惰轮310在扭力组件400提供的合适转动扭力作用下实现打滑,从而避免进一步使针管旋转导致与针杆过度旋紧,确保针管不会紧压破裂,消除了产品报废的安全隐患,保证了产品质量,有利于提升产品质量和企业的经济效益。When the above-mentioned screwing device is in operation, the rotating rod 442 mechanism is mounted on one side of the rotating turntable, and the twisting is performed.
The force assembly 400 is mounted on the mount 100 and adjusted for a suitable rotational torque value, after which at least one fixed idler 210 of the fixed wheel assembly 200 is disposed on one side of the drive disc 700 so as to rotate with the drive disc 700 When the needle tube is in rotational contact with the fixed idler gear 210, the needle tube is rotated by the frictional force to complete the screwing with the needle bar clamped on the clamping rod mechanism; after that, the needle tube and the needle bar that complete the preliminary tightening continue with the active turntable 700. Rotating to at least one rotary idler 310 downstream of the fixed idler gear 210, the rotary idler 310 achieves slippage under the appropriate rotational torque provided by the torsion assembly 400, thereby preventing further rotation of the needle tube resulting in excessive tightening of the needle bar, ensuring The needle tube will not be crushed and ruptured, which eliminates the safety hazard of product scrapping, ensures product quality, and is conducive to improving product quality and economic benefits of the enterprise.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.
Claims (9)
- 一种旋杆机构,其特征在于,包括:A rotary rod mechanism, comprising:安装座;Mounting seat固定轮组件,所述固定轮组件设置于所述安装座上,且所述固定轮组件包括至少一个固定惰轮,所述固定惰轮用于布置在主动转盘的一侧、并通过摩擦力驱动针管旋转;a fixed wheel assembly, the fixed wheel assembly is disposed on the mounting seat, and the fixed wheel assembly includes at least one fixed idler pulley for being disposed on one side of the active turntable and driven by friction Needle rotation;旋转轮组件,所述旋转轮组件设置于所述安装座上,且所述旋转轮组件包括设置于所述固定惰轮的下游的至少一个旋转惰轮,所述旋转惰轮用于与针管接触打滑以防止针管与针杆过度旋紧而破裂,以及针管内活塞损环,或者活塞上下移位使管内药水溢出;及a rotating wheel assembly, the rotating wheel assembly is disposed on the mount, and the rotating wheel assembly includes at least one rotating idler disposed downstream of the fixed idler, the rotating idler is for contacting the needle tube Slip to prevent the needle tube and the needle rod from being over-tightened and ruptured, and the piston in the needle tube is damaged, or the piston is displaced up and down to overflow the tube;扭力组件,所述扭力组件可转动设置于所述安装座上,所述旋转惰轮设置于所述扭力组件上,且所述扭力组件用于提供所述旋转惰轮转动扭力。a torsion assembly rotatably disposed on the mount, the rotary idler being disposed on the torsion assembly, and the torsion assembly for providing the rotary idler rotational torque.
- 根据权利要求1所述的旋杆机构,其特征在于,包括三个所述固定惰轮,三个所述固定惰轮沿所述主动转盘的转动方向依次间隔设置。A rotary lever mechanism according to claim 1, comprising three said fixed idlers, and said three fixed idlers are sequentially spaced apart in a rotational direction of said active turntable.
- 根据权利要求2所述的旋杆机构,其特征在于,三个所述固定惰轮沿纵向交错布置。The rotary mechanism according to claim 2, wherein the three fixed idlers are staggered in the longitudinal direction.
- 根据权利要求1所述的旋杆机构,其特征在于,所述扭力组件包括扭力弹簧、设置于所述安装座上并设有安装孔的固定座、可转动设置于所述安装孔内的摩擦片组和支撑杆组,所述支撑杆组包括设有环形凹台的套筒、嵌固于所述套筒内并用于支撑所述旋转惰轮的旋杆,所述安装孔的孔壁向中心方向凸设有环形卡台,所述扭力弹簧抵压设置于所述环形凹台和所述环形卡台之间,所述摩擦片组包括固定于所述旋杆的端部的第一摩擦片、设置于所述安装孔内并与所述第一摩擦片转动配合的第二摩擦片、及设置于所述第一摩擦片和所述第二摩擦片之间用以产生摩擦作用的摩擦体。The rotating rod mechanism according to claim 1, wherein the torsion assembly comprises a torsion spring, a fixing seat disposed on the mounting seat and provided with a mounting hole, and friction rotatably disposed in the mounting hole a sheet set and a support rod set, the support rod set including a sleeve provided with an annular recess, a rotary rod embedded in the sleeve and configured to support the rotary idler, the hole wall of the mounting hole An annular ring is protruded from a central direction, the torsion spring is pressed between the annular recess and the annular card, and the friction plate group includes a first friction fixed to an end of the rotating rod. a second friction plate disposed in the mounting hole and rotatably engaged with the first friction plate, and a friction disposed between the first friction plate and the second friction plate for generating friction body.
- 根据权利要求4所述的旋杆机构,其特征在于,所述安装孔的孔壁设有第一螺纹,所述套筒的外筒壁设有第二螺纹,所述第一螺纹与所述第二螺纹螺纹旋接。 The rotary rod mechanism according to claim 4, wherein the hole wall of the mounting hole is provided with a first thread, and the outer cylinder wall of the sleeve is provided with a second thread, the first thread and the first thread The second thread is screwed.
- 根据权利要求4所述的旋杆机构,其特征在于,所述安装座还设有通槽、及位于所述通槽内的转轴,所述旋杆远离所述旋转惰轮的一端设有转动部,所述转动部可转动设置于所述转轴上、并与所述通槽的两侧槽壁间隙配合。The rotating rod mechanism according to claim 4, wherein the mounting seat further comprises a through slot and a rotating shaft located in the through slot, wherein the rotating rod is rotated away from an end of the rotating idler The rotating portion is rotatably disposed on the rotating shaft and is in clearance with the groove walls on both sides of the through groove.
- 根据权利要求1所述的旋杆机构,其特征在于,所述扭力组件包括沿所述主动转盘的转动方向间隔设置的第一扭力组件和第二扭力组件,所述旋转惰轮包括第一旋转惰轮和第二旋转惰轮,所述第一旋转惰轮设置于所述第一扭力组件上,所述第二旋转惰轮设置于所述第二扭力组件上。The rotary mechanism according to claim 1, wherein said torsion assembly comprises a first torsion assembly and a second torsion assembly spaced apart in a rotational direction of said active dial, said rotary idler including a first rotation An idler pulley and a second rotary idler, the first rotary idler is disposed on the first torsion assembly, and the second rotary idler is disposed on the second torsion assembly.
- 根据权利要求6所述的旋杆机构,其特征在于,还包括调节螺母和可调张力弹簧,所述安装座设有调节螺孔,所述调节螺母旋装于所述调节螺孔内,所述可调张力弹簧的一端与所述转动部抵接、另一端与所述调节螺母抵接。The rotating rod mechanism according to claim 6, further comprising an adjusting nut and an adjustable tension spring, wherein the mounting seat is provided with an adjusting screw hole, and the adjusting nut is screwed into the adjusting screw hole, One end of the adjustable tension spring abuts against the rotating portion, and the other end abuts against the adjusting nut.
- 一种旋装装置,其特征在于,包括主动转盘和如上述权利要求1至8任一项所述的旋杆机构,所述主动转盘的边缘向内凹设有至少一个用于容纳针管的容置凹槽,位于所述容置凹槽的两侧分别可转动安装有一个承托轴承,所述旋杆机构与所述主动转盘间隔设置,且两个所述承托轴承与所述固定惰轮之间配合形成旋装间距,两个所述承托轴承与所述旋转惰轮之间配合形成让位间距。 A spin-on device comprising an active turntable and a rotary rod mechanism according to any one of claims 1 to 8, wherein an edge of the active turntable is recessed inwardly with at least one capacity for receiving a needle tube a groove is disposed on each side of the accommodating groove, and a support bearing is rotatably mounted, the screw mechanism is spaced apart from the active turntable, and the two support bearings and the fixed idle The rotation between the wheels forms a spin-on spacing, and the two bearing bearings cooperate with the rotary idler to form a spacing.
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