WO2011143812A1 - 圆头锁眼机的开孔切刀装置 - Google Patents

圆头锁眼机的开孔切刀装置 Download PDF

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Publication number
WO2011143812A1
WO2011143812A1 PCT/CN2010/072905 CN2010072905W WO2011143812A1 WO 2011143812 A1 WO2011143812 A1 WO 2011143812A1 CN 2010072905 W CN2010072905 W CN 2010072905W WO 2011143812 A1 WO2011143812 A1 WO 2011143812A1
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cylinder
cutter
hinged
piston rod
force
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PCT/CN2010/072905
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English (en)
French (fr)
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张章生
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Zhang Zhangsheng
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Priority to PCT/CN2010/072905 priority Critical patent/WO2011143812A1/zh
Publication of WO2011143812A1 publication Critical patent/WO2011143812A1/zh

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
    • D05B3/08—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes for buttonholes with eyelet ends
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04—Cutting devices
    • D05B37/06—Cutting devices with oscillating tools

Definitions

  • This invention relates to a knob for a round buttonhole, and more particularly to an aperture cutter device for a buttonhole buttonhole machine.
  • the round-head buttonhole machine is mainly used for sewing buttonholes of various medium-thick materials such as knit, cotton cloth, woolen cloth, etc. It is a special machine for producing high-efficiency sewing buttonholes.
  • the traditional open-end cutter device of the open-end buttonhole machine is driven by a multi-force cylinder. Because the length of the cylinder of the multi-force cylinder is too long and the stroke is too long, the inflation and exhaust time is too long, resulting in The cutting speed of the cutter is slow, the gas consumption is large, the tool loss is large, and the reset is slow, so the work efficiency is low. Shortening the length of the cylinder is a solution to increase the speed of movement of the cutter, but this does not satisfy the normal stroke height between the cutters.
  • the cut must be changed.
  • the fulcrum of the knife lever in this way, the cutting force of the cutter can not meet the requirements.
  • the cylinder diameter In order to increase the shear force, the cylinder diameter must be increased, so that the intake and exhaust volume of the cylinder must be increased, and the shear force is made on the one hand.
  • the volume of the device is increased, and on the other hand, the speed of movement of the cutter is not significantly improved due to the long inflation time. In short, there is currently no effective way to improve the efficiency of the cutter device.
  • the technical problem to be solved by the present invention is to solve the problem that the opening cutter device of the round buttonhole machine has low working efficiency.
  • the technical solution adopted by the present invention is to provide a hole cutter device for a round buttonhole keyhole machine, comprising:
  • Multi-force cylinder with several pressure inlets and one return air inlet
  • a cutter lever the middle portion of which is hinged on an inner wall of the casing of the round buttonhole machine, and one end of the cutter lever is hinged to the end of the piston rod of the multi-force cylinder;
  • the cutter fixed shaft the upper end of which is hinged to the other end of the cutter lever;
  • a connecting seat having first and second arms at right angles, the right angle portion being hinged to an inner wall of the lower casing, the end of the first arm being hinged to the cylinder of the multi-power cylinder;
  • the auxiliary cylinder has a pressure inlet port and a return air inlet port, and the piston rod end is hinged at the end of the second arm of the connecting seat, and the cylinder body is hinged on the inner wall of the casing under the buttonhole keyhole machine, and the auxiliary cylinder
  • the pressure inlet is connected to the return air inlet of the multi-force cylinder;
  • the sensor is fixed on the cylinder of the auxiliary cylinder, and when the piston rod of the multi-force cylinder is in the same straight line as the first arm, the sensor sends an auxiliary cylinder in-position signal;
  • the control unit connects a plurality of pressure inlets on the multi-force cylinder to the air source according to the auxiliary cylinder in-position signal.
  • the piston rod end of the auxiliary cylinder is mounted with a magnetic ring, and the sensor is a magnetic sensor.
  • the sensor senses the magnetic signal of the magnetic ring.
  • the first arm is on the same line as the piston rod of the multi-force cylinder.
  • the multi-force cylinder is a ⁇ power cylinder.
  • the position of the multi-force cylinder is first adjusted by the auxiliary cylinder, and when the first arm is on the same line as the piston rod of the multi-force cylinder, the multi-force cylinder starts to work, and the cutter and the pad are normally traveled.
  • the height is constant
  • the cylinder bore diameter is constant
  • the cutting force is constant
  • the speed of the opening and cutting device of the round buttonhole machine is increased by 70% or more
  • the air volume of the cylinder is reduced by 60% or more, and the cutter is extended. Service life, reducing noise during breakage.
  • Figure 1 is a schematic exploded view of the present invention
  • Figure 2 is a schematic view of the structure of the present invention.
  • Fig. 3 is a view showing a state in which the multi-power cylinder of the present invention starts to intake.
  • the present invention includes a multi-force cylinder 4, a cutter lever 1, a cutter fixed shaft 20, a joint 8, an auxiliary cylinder 12, a sensor 13, and a control unit.
  • the middle portion of the cutter lever 1 is hinged to the inner wall of the casing 25 of the round buttonhole machine through the rotating shaft 2, and the multi-force cylinder 4 has first and second pressure inlets 5, 6 and a return air inlet. 7.
  • the first and second pressure inlets 5 and 6 are connected to the air source and the return air inlet 7 is deflated, the piston rod of the multi-force cylinder is extended, and the return air inlet 7 is connected.
  • the piston rod of the multi-force cylinder is retracted, and the end of the piston rod of the multi-force cylinder 4 is hinged by the upper pin 3
  • the other end of the cutter lever 1 is hinged to the upper end of the cutter fixed shaft 20 through the lower pin shaft 18, and the cutter block 21 is attached to the lower end of the cutter fixed shaft 20, and the cutter block 21 is fixed
  • the cutter 22 on the holder 23 is opposed to the holder 23 and is fixed to the base 26 of the lower casing.
  • the material is placed between the cutter block 21 and the cutter 22. When the cutter block 21 moves downward, the hole is extruded on the material.
  • the connecting seat 8 has first and second arms 81, 82.
  • the first and second arms 81, 82 are at right angles and the right angle portion passes through the fifth pin 10 and the lower casing 26 of the round buttonhole machine.
  • the inner wall is hinged, the end of the first arm 81 is hinged to the cylinder of the multi-force cylinder 4, the end of the second arm 82 is hinged to the piston rod end of the auxiliary cylinder 12, and the cylinder of the auxiliary cylinder 12 passes the fourth pin.
  • the shaft 16 is hinged on the inner wall of the lower casing 26 of the round buttonhole machine.
  • the auxiliary cylinder 12 has a pressure inlet port 15 and a return air inlet port 14, and the pressure inlet port 15 is connected to the air source inlet.
  • the piston rod of the auxiliary cylinder 12 When the air inlet 14 is deflated, the piston rod of the auxiliary cylinder 12 is extended, and when the return air inlet 14 is turned on and the pressure air inlet 15 is deflated, the piston rod of the auxiliary cylinder 12 is retracted.
  • the pressure air inlet 15 on the cylinder 12 is in communication with the air source of the return air inlet 7 of the multi-power cylinder 4, the end of the piston rod of the auxiliary cylinder 12 is provided with a magnetic ring, and the magnetic sensor 13 is fixed on the cylinder body.
  • the return air inlet 14 of the auxiliary cylinder 12 When the return air inlet 14 of the auxiliary cylinder 12 is inflated, the piston rod is retracted, and the magnetic ring is driven to move to the sensor 13, when the piston rod is retracted to the first working position.
  • the magnetic sensor 13 feels at this time.
  • the magnetic ring signal informs the control unit, the control signal from the control unit, opens the solenoid valve on the air source to connect the air source with the two pressure air inlets 5, 6 on the multi-force cylinder.
  • the working process of the present invention will be described below by taking a working process as an example.
  • the present invention is controlled by a PLC (Control Unit).
  • the multi-force cylinder 4 is a quadruple force cylinder.
  • FIG. 2 is an initial state of the present invention, in which the piston rod of the multi-force cylinder 4 is in a retracted state, and the piston rod of the auxiliary cylinder 12 is in an extended state, and the PLC issues a control signal to return the auxiliary cylinder 12
  • the air inlet 14 is connected to the air source, so that the piston rod of the auxiliary cylinder 12 is retracted, and the second arm 82 of the connecting base 8 is rotated clockwise along the fifth pin shaft 10 while being driven by the first arm 81.
  • the cylinder of the multi-power cylinder 4 rotates counterclockwise along the upper pin shaft 3, when the first arm 81 is in the same line as the piston rod of the multi-force cylinder 4 (as shown in FIG.
  • the sensor 13 Receiving the magnetic signal of the magnetic ring of the end of the piston rod of the auxiliary cylinder 12, converting the magnetic signal into an electric signal and sending it to the control unit, and the control unit sends a control signal according to the signal to maintain the pressure air inlet 14 and the air source of the auxiliary cylinder 12.
  • the first and second pressure inlets 5, 6 of the multi-force cylinder 4 are connected, and the piston rod of the multi-force cylinder 4 is extended, so that the cutter lever 1 is reversed along the lower pin 18 The hour hand rotates, thereby driving the cutter fixing shaft 20 to move downward, and completing the cutting hole work.
  • the control unit cuts off the pressure intake port 14 of the auxiliary cylinder 12 and the first and second intake ports 5, 6 of the multi-power cylinder and the gas source, and simultaneously turns on the multi-force cylinder to return to the position.
  • the gas source of the gas port 7 and the auxiliary cylinder pressure inlet port 15 is such that the piston rod of the multi-force cylinder is contracted and reset, the piston rod of the auxiliary cylinder is extended, and the entire device returns to the initial state as shown in FIG. 2, and the process continues. The next working process, so reciprocating until the PLC sends a stop signal.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

圆头锁眼机的开孔切刀装置 技术领域
本发明涉及一种 圆头锁眼机 ，特别是涉及 圆头锁眼机的开孔切刀装置 。
背景技术
圆头锁眼机主要用于缝锁各种中厚料的针织、棉布、呢绒等服装的钮孔，是一种生产效率较高的缝锁钮孔的专用机器。传统的圆头锁眼机的开孔切刀装置，其切刀由多倍力气缸驱动，由于多倍力气缸缸节长度过长，行程过长，因此充气和排气时间过长，从而造成切刀运动速度慢、用气量大、刀具损耗大、复位慢，因此，工作效率低。缩短气缸的长度是提高切刀的运动速度的一种方案，但这样就不能满足切刀于刀垫之间的正常行程高度，如果要保持切刀刀口与刀垫之间的高度，必须改变切刀杠杆的支点，这样一来，切刀的切料力度又达不到要求，为了增加切力力度就必须增加缸体直径，这样又必须增加气缸的进、排气量，一方面使切力装置的体积增大，另一方面又不可避免地由于充气时间长而使切刀的运动速度并没有得到明显的改善。总之，目前尚没有一种有效提高切刀装置工作效率的方法。
 发明内容
本发明所要解决的技术问题是解决圆头锁眼机的开孔切刀装置工作效率低的问题。
为了解决上述技术问题，本发明所采用的技术方案是提供一种圆头锁眼机的开孔切刀装置，包括：
多倍力气缸，具有若干压力进气口和一个回位进气口；
切刀杠杆，其中部铰接在圆头锁眼机上机壳的内壁上，该切刀杠杆的一端与多倍力气缸的活塞杆端部铰接；
切刀固定轴，其上端与切刀杠杆的另一端铰接；
还包括:
连接座，该连接座具有第一、第二两个支臂且二者呈直角，该直角部铰接在下机壳的内壁上，第一支臂的端部与多倍力气缸的缸体铰接；
辅助气缸，具有压力进气口和回位进气口，其活塞杆端铰接在连接座的第二支臂的端部，缸体铰接在圆头锁眼机下机壳的内壁上，辅助气缸的压力进气口与多倍力气缸的回位进气口连通；
传感器，固定在辅助气缸的缸体上，当多倍力气缸的活塞杆与第一支臂位于同一条直线上时，该传感器发出辅助气缸到位信号；
控制单元，根据辅助气缸到位信号将多倍力气缸上的若干压力进气口与气源接通。
在上述方案中，辅助气缸的活塞杆端安装有磁环，所述传感器为磁性传感器，当辅助气缸的活塞杆端回缩至第一工作位时，传感器感受到磁环的磁性信号，此时，第一支臂与多倍力气缸的活塞杆位于同一条直线上。
在上述方案中，所述多倍力气缸为肆倍力气缸。
本发明，通过辅助气缸首先调整多倍力气缸的位置，当第一支臂与多倍力气缸的活塞杆位于同一条直线上时多倍力气缸开始工作，在保证切刀和刀垫正常行程高度不变、气缸缸径不变、切料力度不变的情况下，使圆头锁眼机的开孔刀切装置的速度提高70%以上，减小气缸用气量60%以上，延长切刀的使用寿命，减少断料时的噪音。
 附图说明
图1为本发明的分解结构示意图；
图2为本发明的结构示意图；
图3为本发明多倍力气缸开始进气时的状态图。
 具体实施方式
下面结合附图对本发明作出详细的说明。
如图1、图2所示，本发明包括多倍力气缸4、切刀杠杆1、切刀固定轴20、连接座8、辅助气缸12、传感器13和控制单元。
切刀杠杆1的中部通过转轴2铰接在圆头锁眼机上机壳25的内壁上，多倍力气缸4具有第一、第二两个压力进气口5、6和一个回位进气口7，第一、第二两个压力进气口5、6接通气源进气而回位进气口7放气时，多倍力气缸的活塞杆伸出，回位进气口7接通气源进气而第一、第二两个压力进气口5、6放气时，多倍力气缸的活塞杆回缩，多倍力气缸4的活塞杆端部通过上销轴3铰接在切刀杠杆1的一端，切刀杠杆1的另一端通过下销轴18与切刀固定轴20的上端铰接，切刀固定轴20的下端安装切刀块21，且切刀块21与固定在刀座23上的切刀22相对，刀座23固定在下机壳的机座26上。物料置于切刀块21与切刀22之间，当切刀块21向下运动时，在物料上挤压切出孔眼。
连接座8具有第一、第二两个支臂81、82，第一、第二支臂81、82呈直角且直角部通过第五销轴10与圆头锁眼机的下机壳26的内壁铰接，第一支臂81的端部与多倍力气缸4的缸体铰接，第二支臂82的端部与辅助气缸12的活塞杆端铰接，辅助气缸12的缸体通过第四销轴16铰接在圆头锁眼机的下机壳26的内壁上，辅助气缸12具有一个压力进气口15和一个回位进气口14，压力进气口15接通气源进气而回位进气口14放气时，辅助气缸12的活塞杆伸出，回位进气口14接通气源进气而压力进气口15放气时，辅助气缸12的活塞杆缩回，辅助气缸12上的压力进气口15与多倍力气缸4的回位进气口7的气源同时连通，辅助气缸12的活塞杆端部装有磁环，缸体上固定有磁性传感器13，当辅助气缸12的回位进气口14进气时，其活塞杆回缩，同时带动磁环向传感器13移动，当活塞杆回缩至第一工作位置时，多倍力气缸4和连接座8的位置成直线位置（即第一支臂81的中心线与多倍力气缸4的活塞杆的轴线位于同一条直线上），此时磁性传感器13感受磁环信号并通知控制单元，控制单元发出的控制信号，打开气源上的电磁阀使气源与多倍力气缸上的两个压力进气口5、6连通。
下面以一个工作过程为例对本发明的工作过程加以说明，本发明由PLC（控制单元）控制工作。多倍力气缸4为四倍力气缸。
图2为本发明的初始状态，在此状态下，多倍力气缸4的活塞杆处于缩回状态，而辅助气缸12的活塞杆处于伸出状态，PLC发出控制信号，将辅助气缸12的回位进气口14与气源接通，于是辅助气缸12的活塞杆缩回，带动连接座8的第二支臂82沿第五销轴10顺时针转动，同时在第一支臂81的带动下，多倍力气缸4的缸体沿上销轴3逆时针转动，当第一支臂81与多倍力气缸4的活塞杆处于同一条直线上时（如图3所示），传感器13接收到辅助气缸12活塞杆端部磁环的磁性信号，将该磁性信号转换为电信号送给控制单元，控制单元根据该信号发出控制信号，保持辅助气缸12的压力进气口14与气源相通，并接通多倍力气缸4的第一、第二两个压力进气口5、6，于是，多倍力气缸4的活塞杆伸出，使切刀杠杆1沿下销轴18逆时针转动，从而带动切刀固定轴20向下运动，完成切孔眼工作。切孔眼完成后，控制单元切断辅助气缸12的压力进气口14和多倍力气缸第一、第二进气口5、6与气源的连通，并同时接通多倍力气缸回位进气口7和辅助气缸压力进气口15的气源，于是多倍力气缸的活塞杆收缩复位，辅助气缸的活塞杆伸出，整套装置回复到如图2所示的初始状态，继续开始进行下一个工作过程，如此往复，直到PLC发出停止信号。
本发明不局限于上述最佳实施方式，任何人应该得知在本发明的启示下作出的结构变化，凡是与本发明具有相同或相近的技术方案，均落入本发明的保护范围之内。

Claims (3)

1、 圆头锁眼机的开孔切刀装置，包括：
多倍力气缸，具有若干压力进气口和一个回位进气口；
切刀杠杆，其中部铰接在圆头锁眼机上机壳的内壁上，该切刀杠杆的一端与多倍力气缸的活塞杆端部铰接；
切刀固定轴，其上端与切刀杠杆的另一端铰接；
其特征在于，还包括:
连接座，该连接座具有第一、第二两个支臂且二者呈直角，该直角部铰接在下机壳的内壁上，第一支臂的端部与多倍力气缸的缸体铰接；
辅助气缸，具有压力进气口和回位进气口，其活塞杆端铰接在连接座的第二支臂的端部，缸体铰接在圆头锁眼机下机壳的内壁上，辅助气缸的压力进气口与多倍力气缸的回位进气口连通；
传感器，固定在辅助气缸的缸体上，当多倍力气缸的活塞杆与第一支臂位于同一条直线上时，该传感器发出辅助气缸到位信号；
控制单元，根据辅助气缸到位信号将多倍力气缸上的若干压力进气口与气源接通。
2、 如权利要求1所述的圆头锁眼机的开孔切刀装置，其特征在于辅助气缸的活塞杆端安装有磁环，所述传感器为磁性传感器，当辅助气缸的活塞杆端回缩至第一工作位时，传感器感受到磁环的磁性信号，此时，第一支臂与多倍力气缸的活塞杆位于同一条直线上。
3、 如权利要求1或2所述的圆头锁眼机的开孔切刀装置，其特征在于所述多倍力气缸为肆倍力气缸。
PCT/CN2010/072905 2010-05-19 2010-05-19 圆头锁眼机的开孔切刀装置 WO2011143812A1 (zh)

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