WO2009155797A1 - Electric feeding and injection device - Google Patents

Electric feeding and injection device Download PDF

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Publication number
WO2009155797A1
WO2009155797A1 PCT/CN2009/070798 CN2009070798W WO2009155797A1 WO 2009155797 A1 WO2009155797 A1 WO 2009155797A1 CN 2009070798 W CN2009070798 W CN 2009070798W WO 2009155797 A1 WO2009155797 A1 WO 2009155797A1
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WO
WIPO (PCT)
Prior art keywords
servo motor
screw
feeding
injection
motor
Prior art date
Application number
PCT/CN2009/070798
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French (fr)
Chinese (zh)
Inventor
韩志翔
Original Assignee
陆孝庭
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Publication date
Application filed by 陆孝庭 filed Critical 陆孝庭
Publication of WO2009155797A1 publication Critical patent/WO2009155797A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/5008—Drive means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/5008—Drive means therefor
    • B29C2045/504—Drive means therefor electric motors for rotary and axial movement of the screw being coaxial with the screw

Definitions

  • the invention relates to a feeding injection mechanism of an injection molding machine. Background technique
  • Figure 1 shows the feeding injection device of the existing injection molding machine.
  • the feeding servo motor 3 is rotated right (from the end of the motor), driven by the driving wheel to the driven wheel, and the driving screw is rotated left (from the shaft end of the motor) to realize the feeding and mixing action; simultaneously with the feeding action, the injection servo Motor 1 ⁇ left-handed (from the end of the motor), drive the drive wheel 1 ( ⁇ left-handed, drive wheel 1 ( ⁇ drives the driven wheel a 9, right-handed (viewed from the motor shaft end), driven wheel a 9, direct drive
  • the ball screw 5 is rotated rightward, because the ball nut 6 is fixed and cannot be moved, so that the ball screw 5 is forced to retreat at the same time as the right hand rotation, thereby achieving the retracting action.
  • the driven wheel 9 through the spline ⁇ and the gland 8. It is fixed on the ball screw 5, so when the ball screw 5 is retracted, the driven wheel -9, the driven wheel -9, the fixed transmission structure, and the injection servo motor 1 ⁇ are simultaneously retracted.
  • a complete set of pulley drive mechanism is required between the feed servo motor and the screw.
  • a pulley drive mechanism is also required between the servo motor and the ball screw. Screw and roll are required. Thrust bearings are also arranged between the bead screws to achieve rotational translation.
  • the complexity of the mechanism is obvious, resulting in increased costs; secondly, due to the use of pulley drive, the transmission accuracy is low; moreover, both the motor and the transmission need to follow the screw movement, in fact they all need to be set in a movement
  • the inertia of the platform together with the motor and the transmission mechanism is very large, and it is difficult to precisely control the axial position during starting and braking, and the control precision is not high. Summary of the invention
  • the invention solves the defects of complicated mechanism, large moving parts, large moving inertia and low control precision of the feeding injection device of the existing injection molding machine, and provides a simple structure, less moving parts, small moving inertia, high control precision and low cost.
  • the injection molding machine feeds the injection device.
  • the injection molding device of the injection molding machine of the present invention comprises:
  • a stirring screw disposed in the barrel for stirring and pushing the material
  • the transmission screw is fixed to the stirring screw
  • the transmission screw is disposed on the feeding servo motor, the feeding servo motor is an outer rotor servo motor, and the driving screw is connected to the base of the feeding servo motor through a bearing, and the driving screw is sleeved a transmission nut, the transmission nut is connected to an outer rotor of the feeding servo motor;
  • the rear portion of the transmission screw has an extension portion, the extension portion is disposed on the injection servo motor, and the extension portion is connected to the base of the injection servo motor through a bearing, and the extension portion is The ball is connected between the rotors of the servo motor.
  • the injection servo motor is an outer rotor motor, and the extension is connected to the outer rotor of the injection servo motor.
  • connection form is: the extension is an angle bar, and the rotor of the injection servo motor is connected to the corner bar.
  • the invention realizes a full set of action of feeding and injection by using two hollow outer rotor servo motors.
  • the injection servo motor rotates to the right (from the motor shaft end), the feeding servo motor does not rotate, acts as a brake, because the two motors are completely fixed, the drive screw is forced to retreat, and the stirring screw is driven back to realize the loosening action, and the retracting speed is only It is related to the speed of the servo motor.
  • the servo motor is rotated to the right (from the motor shaft end), the servo motor is left-handed, the drive screw is retracted, the servo motor is driven to drive the angle bar to the left, and the drive screw is rotated to the left.
  • the drive screw drives the stirring screw to rotate left and backward to realize the feeding and stirring action.
  • the retraction speed of the agitating screw is the sum of the rotational speeds of the two hollow outer rotor servo motors.
  • the servo motor is left-handed (seen from the shaft end of the motor), the servo motor is not moved, and acts as a brake.
  • the drive screw is forced to move forward, and the stirring screw is driven to move forward to make the injection action.
  • the invention adopts two servo motor linkage direct drive system, the structure is simple and compact, and the efficiency of the whole drive system can be up to 90%.
  • the working process only the agitating screw and the driving screw are moved, and the motor is completely immobilized, which greatly reduces the mobility inertia and facilitates accurate control of the axial position.
  • the two motor steering through the combination of the two motor steering, there is a large adjustment space in the feeding action and the feeding speed, which can greatly shorten the feeding time (within 0.25S), and realize all the feeding actions such as rapid injection and fast feeding.
  • the entire feeding time is adjusted to several tens of times or even hundreds of times of the shortest cycle time, and the maximum limit is satisfied for all levels of customer demand.
  • the invention has the advantages of simple and compact structure, low cost, less moving parts, small moving inertia, high control precision, and large adjustment range of feeding action and feeding speed.
  • FIG. 1 is a feeding injection device of a conventional injection molding machine
  • Figure 2 is a schematic diagram of the structure of the present invention
  • Figure 3 is an outline view of the present invention.
  • the injection molding device of the injection molding machine of the present invention comprises: a stirring screw 1 disposed in the barrel for stirring and pushing the material; a driving screw 2 connected to the rear of the stirring screw 1; The screw 2 is fixed to the stirring screw 1 described above.
  • the transmission screw 2 is disposed on the feeding servo motor 3, and the feeding servo motor 3 is an outer rotor servo motor.
  • the transmission screw 2 is connected to the base 31 of the feeding servo motor 3 via a bearing 34.
  • the transmission screw 2 is sleeved with a transmission nut 4, and the transmission nut 4 is connected to the outer rotor 33 of the feeding servo motor 3.
  • the stator 32 is coupled to the base 31.
  • the drive screw 2 can be a ball screw, and the drive nut 4 can be a ball nut.
  • the rear portion of the transmission screw 2 has an extension 6 which is bored on the injection servo motor 5.
  • the extension 6 is connected to the base of the injection servo motor 5 via a tapered roller bearing 54.
  • the extension 6 is keyed to the rotor 53 of the injection servo motor 5.
  • This type of key connection can take the extension 6 as a corner bar (as is common with hexagonal bars:) and the rotor 53 is connected to the corner bar; it can also take the form of a spline.
  • the stator 52 is connected to the base 51.
  • the invention uses two hollow rotor servo motors to realize the complete action of feeding and injection.
  • the injection servo motor rotates to the right (from the motor shaft end), the feeding servo motor does not rotate, acts as a brake, because the two motors are completely fixed, the drive screw is forced to retreat, and the stirring screw is driven back to realize the loosening action, and the retracting speed is only It is related to the speed of the servo motor.
  • Shoot out The motor is rotated to the right (from the motor shaft end), the servo motor is left-handed, the drive screw is retracted, the servo motor is driven to drive the corner bar to the left, and the drive screw is rotated to the left.
  • the drive screw drives the stirring screw to rotate left and backward to realize the feeding and stirring action.
  • the retraction speed of the screw is the sum of the rotational speeds of the two hollow rotor servo motors.
  • the servo motor is left-handed (seen from the motor shaft end), the feeding servo motor does not move, acts as a brake, and the transmission screw is forced to move forward, causing the stirring screw to move forward and make an injection action.
  • the present embodiment differs from the first embodiment in that the injection servo motor 5 is an outer rotor motor, and the extension 6 is connected to the outer rotor 53 of the injection servo motor.
  • the rest is the same as in the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

An electric feeding and injection device comprises a mixing screw (1) equipped in a barrel for mixing and pushing the material and a transmission screw (2) mounted behind the mixing screw (1). The two screws are fixed together. The transmission screw (2) is connected with the rear of a feeding servo motor (3), and the extending section (6) of the rear portion of the transmission screw (2) is mounted through an injection servo motor (5). The feeding servo motor (3) is an external rotor servo motor.

Description

说 明 书  Description
电动加料射出装置 技术领域  Electric feeding injection device
本发明涉及注塑机的加料射出机构。 背景技术  The invention relates to a feeding injection mechanism of an injection molding machine. Background technique
图 1所示是现有注塑机的加料射出装置。 加料伺服电机 3右旋 (从电机尾端看） ， 通过主动轮二 传动到从动轮二 Γ , 驱动螺杆 Γ左旋 （从电机轴端看） ， 实现加料搅料动作； 与加料动作同时， 射出伺服电机 1 Γ左旋 （从电机尾端看） ， 驱动主动轮一 1(Τ左旋， 主动轮一 1(Τ带动从动轮一 9、右旋 （从电机轴端看） ， 从动轮一 9、直 接驱动滚珠螺杆 5右旋， 因为滚珠螺母 6 皮固定座 13固定不能移动， 所以滚珠螺杆 5、在右旋同时被迫后退， 实现松退动作。同时， 从动轮 一 9、通过花键 Τ以及压盖 8、固定在滚珠螺杆 5、上， 所以当滚珠螺杆 5、后退时， 从动轮一 9、以及从动轮一 9、固定的传动结构、射出伺服电 机 1 Γ同时后退。  Figure 1 shows the feeding injection device of the existing injection molding machine. The feeding servo motor 3 is rotated right (from the end of the motor), driven by the driving wheel to the driven wheel, and the driving screw is rotated left (from the shaft end of the motor) to realize the feeding and mixing action; simultaneously with the feeding action, the injection servo Motor 1 Γ left-handed (from the end of the motor), drive the drive wheel 1 (Τ left-handed, drive wheel 1 (Τ drives the driven wheel a 9, right-handed (viewed from the motor shaft end), driven wheel a 9, direct drive The ball screw 5 is rotated rightward, because the ball nut 6 is fixed and cannot be moved, so that the ball screw 5 is forced to retreat at the same time as the right hand rotation, thereby achieving the retracting action. At the same time, the driven wheel 9 through the spline Τ and the gland 8. It is fixed on the ball screw 5, so when the ball screw 5 is retracted, the driven wheel -9, the driven wheel -9, the fixed transmission structure, and the injection servo motor 1 Γ are simultaneously retracted.
射出伺服电机 1 Γ右旋 （从电机尾端看） ， 通过主动轮一 1(Τ、从 动轮一 9、带动滚珠螺杆 5、左旋， 滚珠螺杆 5、旋转通过轴承 12、将旋转 动作化为平动， 推动螺杆 Γ前进， 完成射出动作。同时螺杆 Γ拖动从 动轮二 Τ以及主动轮二 、加料伺服电机 3、前进； 滚珠螺杆 5、带着从 动轮一 9\主动轮一 1(Τ和射出伺服电机 1 Γ前进。 以上为整个加料射 出动作的整个周期动作。  Shooting servo motor 1 Γ Right-handed (viewed from the end of the motor), through the driving wheel 1 (Τ, driven wheel -9, driving the ball screw 5, left-handed, ball screw 5, rotating through the bearing 12, turning the rotation into a flat Move, push the screw Γ forward, complete the injection action. At the same time, the screw Γ drag the driven wheel Τ and the driving wheel 2, the feeding servo motor 3, forward; the ball screw 5, with the driven wheel a 9\ drive wheel 1 (Τ和The servo motor 1 is ejected. The above is the entire cycle of the entire feeding operation.
加料伺服电机与螺杆之间需要一整套皮带轮传动机构， 同样射 出伺服电机与滚珠螺杆之间也需要一套皮带轮传动机构， 螺杆与滚 珠螺杆之间还设置推力轴承实现转动变平动。其机构的复杂是显然的， 由此带来成本升高； 其次由于采用皮带轮传动， 传动精确度低； 再 有， 电机和传动机构都需要跟随螺杆移动， 事实上它们都需要被设 置在一个移动平台上， 平台连同电机和传动机构的惯性很大， 在启 动和制动时难以精确控制其轴向位置， 控制精度不高。 发明内容 A complete set of pulley drive mechanism is required between the feed servo motor and the screw. A pulley drive mechanism is also required between the servo motor and the ball screw. Screw and roll are required. Thrust bearings are also arranged between the bead screws to achieve rotational translation. The complexity of the mechanism is obvious, resulting in increased costs; secondly, due to the use of pulley drive, the transmission accuracy is low; moreover, both the motor and the transmission need to follow the screw movement, in fact they all need to be set in a movement On the platform, the inertia of the platform together with the motor and the transmission mechanism is very large, and it is difficult to precisely control the axial position during starting and braking, and the control precision is not high. Summary of the invention
本发明要解决现有注塑机的加料射出装置的机构复杂、移动部件 多、移动惯性大、控制精度低的缺点， 提供一种结构简单、移动部件少、 移动惯性小、 控制精度高、 成本低的注塑机加料射出装置。  The invention solves the defects of complicated mechanism, large moving parts, large moving inertia and low control precision of the feeding injection device of the existing injection molding machine, and provides a simple structure, less moving parts, small moving inertia, high control precision and low cost. The injection molding machine feeds the injection device.
本发明所述的注塑机加料射出装置， 包括：  The injection molding device of the injection molding machine of the present invention comprises:
一设置在料筒内用于搅拌和推料的搅拌螺杆；  a stirring screw disposed in the barrel for stirring and pushing the material;
一连接在所述的螺杆后部的传动螺杆；  a drive screw coupled to the rear of the screw;
其特征在于：  It is characterized by:
所述的传动螺杆与所述的搅拌螺杆固接；  The transmission screw is fixed to the stirring screw;
所述的传动螺杆穿设在加料伺服电机上， 所述的加料伺服电机 是外转子伺服电机， 所述的传动螺杆通过轴承连接在加料伺服电机 的基座上， 所述的传动螺杆上套有传动螺母， 所述的传动螺母连接 加料伺服电机的外转子；  The transmission screw is disposed on the feeding servo motor, the feeding servo motor is an outer rotor servo motor, and the driving screw is connected to the base of the feeding servo motor through a bearing, and the driving screw is sleeved a transmission nut, the transmission nut is connected to an outer rotor of the feeding servo motor;
所述的传动螺杆的后部有延伸段， 所述的延伸段穿设在射出伺 服电机上， 所述的延伸段通过轴承连接在射出伺服电机的基座上， 所述的延伸段与所述的射出伺服电机的转子之间键连接。  The rear portion of the transmission screw has an extension portion, the extension portion is disposed on the injection servo motor, and the extension portion is connected to the base of the injection servo motor through a bearing, and the extension portion is The ball is connected between the rotors of the servo motor.
进一步， 所述的射出伺服电机是外转子电机， 所述的延伸段连 接所述的射出伺服电机的外转子。  Further, the injection servo motor is an outer rotor motor, and the extension is connected to the outer rotor of the injection servo motor.
更进一步， 所述的延伸段与所述的射出伺服电机的转子之间键 连接形式是： 所述的延伸段是角棒， 所述的射出伺服电机的转子与 所述的角棒连接。 Further, the extension between the extension and the rotor of the injection servo motor The connection form is: the extension is an angle bar, and the rotor of the injection servo motor is connected to the corner bar.
本发明用两台中空外转子伺服电机联动实现加料射出全套动作。 射出伺服电机向右旋转 （从电机轴端看） ，加料伺服电机不转， 充当 刹车， 因两电机完全固定， 强制驱动传动螺杆后退， 带动搅拌螺杆 后退， 实现松退动作， 松退速度只与射出伺服电机的转速有关。射出 伺服电机向右旋转 （从电机轴端看） ， 加料伺服电机左旋， 传动螺 杆后退， 加料伺服电机带动角棒左旋， 带动传动螺杆左旋， 传动螺 杆带动搅拌螺杆左旋后退， 实现加料、搅料动作， 搅拌螺杆的后退速 度跟为两中空外转子伺服电机转速之和。射出伺服电机左旋 （从电机 轴端看） ， 加料伺服电机不动， 充当刹车， 传动螺杆被迫平动前进， 带动搅拌螺杆平动前进， 做射出动作。  The invention realizes a full set of action of feeding and injection by using two hollow outer rotor servo motors. The injection servo motor rotates to the right (from the motor shaft end), the feeding servo motor does not rotate, acts as a brake, because the two motors are completely fixed, the drive screw is forced to retreat, and the stirring screw is driven back to realize the loosening action, and the retracting speed is only It is related to the speed of the servo motor. The servo motor is rotated to the right (from the motor shaft end), the servo motor is left-handed, the drive screw is retracted, the servo motor is driven to drive the angle bar to the left, and the drive screw is rotated to the left. The drive screw drives the stirring screw to rotate left and backward to realize the feeding and stirring action. The retraction speed of the agitating screw is the sum of the rotational speeds of the two hollow outer rotor servo motors. The servo motor is left-handed (seen from the shaft end of the motor), the servo motor is not moved, and acts as a brake. The drive screw is forced to move forward, and the stirring screw is driven to move forward to make the injection action.
本发明采用两伺服电机联动直驱***， 结构简单紧凑， 高效节 能整个驱动***的工作效率可高达 90%以上。同时在工作过程中移动 部件只有搅拌螺杆和传动螺杆， 电机完全不动， 大大减小了移动惯 性， 有利于精确控制轴向位置。再有， 通过两电机转向的组合， 在加 料动作以及加料速度上有很大的调节空间， 可以极大地缩短加料时 间 （0.25S以内） ， 实现快速射出、 快速加料等全部加料射出动作， 也可以将整个加料时间调节为最短周期时间的几十倍甚至上百倍， 最大极限地满足各层次客户需求。  The invention adopts two servo motor linkage direct drive system, the structure is simple and compact, and the efficiency of the whole drive system can be up to 90%. At the same time, in the working process, only the agitating screw and the driving screw are moved, and the motor is completely immobilized, which greatly reduces the mobility inertia and facilitates accurate control of the axial position. In addition, through the combination of the two motor steering, there is a large adjustment space in the feeding action and the feeding speed, which can greatly shorten the feeding time (within 0.25S), and realize all the feeding actions such as rapid injection and fast feeding. The entire feeding time is adjusted to several tens of times or even hundreds of times of the shortest cycle time, and the maximum limit is satisfied for all levels of customer demand.
本发明的优点是： 结构简单紧凑、成本低， 移动部件少、移动惯 性小、 控制精度高， 加料动作以及加料速度的调节范围大。 附图说明  The invention has the advantages of simple and compact structure, low cost, less moving parts, small moving inertia, high control precision, and large adjustment range of feeding action and feeding speed. DRAWINGS
图 1是现有注塑机的加料射出装置 图 2是本发明的结构原理图 1 is a feeding injection device of a conventional injection molding machine Figure 2 is a schematic diagram of the structure of the present invention
图 3是本发明的外形图 具体实 式  Figure 3 is an outline view of the present invention.
实施例一 Embodiment 1
参照附图 2-3 :  Refer to Figure 2-3:
本发明所述的注塑机加料射出装置， 包括： 一设置在料筒内用 于搅拌和推料的搅拌螺杆 1 ; 一连接在所述的搅拌螺杆 1后部的传动 螺杆 2; 所述的传动螺杆 2与所述的搅拌螺杆 1固接。  The injection molding device of the injection molding machine of the present invention comprises: a stirring screw 1 disposed in the barrel for stirring and pushing the material; a driving screw 2 connected to the rear of the stirring screw 1; The screw 2 is fixed to the stirring screw 1 described above.
所述的传动螺杆 2穿设在加料伺服电机 3上， 所述的加料伺服 电机 3是外转子伺服电机。 所述的传动螺杆 2通过轴承 34连接在加 料伺服电机 3的基座 31上， 所述的传动螺杆 2上套有传动螺母 4， 所述的传动螺母 4连接加料伺服电机 3的外转子 33。 定子 32连接在 基座 31上。  The transmission screw 2 is disposed on the feeding servo motor 3, and the feeding servo motor 3 is an outer rotor servo motor. The transmission screw 2 is connected to the base 31 of the feeding servo motor 3 via a bearing 34. The transmission screw 2 is sleeved with a transmission nut 4, and the transmission nut 4 is connected to the outer rotor 33 of the feeding servo motor 3. The stator 32 is coupled to the base 31.
传动螺杆 2可以采用滚珠螺杆， 传动螺母 4可以采用滚珠螺母。 所述的传动螺杆 2的后部有延伸段 6， 所述的延伸段 6穿设在射 出伺服电机 5上， 所述的延伸段 6通过圆锥滚子轴承 54连接在射出 伺服电机 5的基座 51上， 所述的延伸段 6与所述的射出伺服电机 5 的转子 53之间键连接。 这种键连接可以采取延伸段 6是角棒 (如常见 的六角棒：)， 而转子 53与角棒连接； 也可以采取花键形式。定子 52连 接基座 51。  The drive screw 2 can be a ball screw, and the drive nut 4 can be a ball nut. The rear portion of the transmission screw 2 has an extension 6 which is bored on the injection servo motor 5. The extension 6 is connected to the base of the injection servo motor 5 via a tapered roller bearing 54. At 51, the extension 6 is keyed to the rotor 53 of the injection servo motor 5. This type of key connection can take the extension 6 as a corner bar (as is common with hexagonal bars:) and the rotor 53 is connected to the corner bar; it can also take the form of a spline. The stator 52 is connected to the base 51.
本发明用两台中空转子伺服电机联动实现加料射出全套动作。射 出伺服电机向右旋转 （从电机轴端看） ，加料伺服电机不转， 充当刹 车， 因两电机完全固定， 强制驱动传动螺杆后退， 带动搅拌螺杆后 退， 实现松退动作， 松退速度只与射出伺服电机的转速有关。射出伺 服电机向右旋转 （从电机轴端看） ， 加料伺服电机左旋， 传动螺杆 后退， 加料伺服电机带动角棒左旋， 带动传动螺杆左旋， 传动螺杆 带动搅拌螺杆左旋后退， 实现加料、搅料动作， 螺杆的后退速度跟为 两中空转子伺服电机转速之和。射出伺服电机左旋 （从电机轴端看） ， 加料伺服电机不动， 充当刹车， 传动螺杆被迫平动前进， 带动搅拌 螺杆平动前进， 做射出动作。 The invention uses two hollow rotor servo motors to realize the complete action of feeding and injection. The injection servo motor rotates to the right (from the motor shaft end), the feeding servo motor does not rotate, acts as a brake, because the two motors are completely fixed, the drive screw is forced to retreat, and the stirring screw is driven back to realize the loosening action, and the retracting speed is only It is related to the speed of the servo motor. Shoot out The motor is rotated to the right (from the motor shaft end), the servo motor is left-handed, the drive screw is retracted, the servo motor is driven to drive the corner bar to the left, and the drive screw is rotated to the left. The drive screw drives the stirring screw to rotate left and backward to realize the feeding and stirring action. The retraction speed of the screw is the sum of the rotational speeds of the two hollow rotor servo motors. The servo motor is left-handed (seen from the motor shaft end), the feeding servo motor does not move, acts as a brake, and the transmission screw is forced to move forward, causing the stirring screw to move forward and make an injection action.
调速原理： 同轴反转——当要求加料时间很短时， 射出电机 3右 旋 （从电机轴端看） ， 带动传动螺母 4右旋， 使传动螺杆 2后退， 同时加料电机 5左旋， 转动传动螺杆 2， 在传动螺母 4的推动下后退， 因此传动螺杆 2的后退速度为两个电机转速之和， 我们可以通过调 节两个电机的转速来控制搅拌螺杆 1的后退速度以及搅拌螺杆 1的 转速； 如果要求延长加料时间， 我们可以让射出电机 3左旋带动传 动螺母 4左旋， 使传动螺杆 2前进， 与此同时加料电机 5左旋转， 转动传动螺杆 2， 在传动螺母 4的作用下后退， 此时传动螺杆 2的后 退速度为加料电机 5与射出电机 3的转速之差， 注意： 加料电机 3 的转速必须高于射出电机 5的转速， 否则会原地搅料。  Speed regulation principle: Coaxial reversal - When the required feeding time is short, the injection motor 3 is rotated right (from the motor shaft end), and the transmission nut 4 is driven to the right, so that the transmission screw 2 is retracted, and the feeding motor 5 is left-handed. Rotating the drive screw 2, retreating under the push of the transmission nut 4, so the reverse speed of the drive screw 2 is the sum of the two motor speeds, we can control the retraction speed of the agitating screw 1 and the agitating screw 1 by adjusting the rotational speed of the two motors If the extension time is required, we can let the injection motor 3 rotate left to rotate the transmission nut 4 to make the transmission screw 2 advance, and at the same time, the feeding motor 5 rotates to the left, rotate the transmission screw 2, and retreat under the action of the transmission nut 4. At this time, the reverse speed of the driving screw 2 is the difference between the rotating speed of the feeding motor 5 and the injection motor 3. Note: The rotation speed of the feeding motor 3 must be higher than the rotation speed of the injection motor 5, otherwise the material will be stirred in place.
实施例二  Embodiment 2
参照附图 2-3 :  Refer to Figure 2-3:
本实施例与实施例一不同之处是： 射出伺服电机 5是外转子电 机， 所述的延伸段 6连接所述的射出伺服电机的外转子 53。  The present embodiment differs from the first embodiment in that the injection servo motor 5 is an outer rotor motor, and the extension 6 is connected to the outer rotor 53 of the injection servo motor.
其余与实施例一相同。  The rest is the same as in the first embodiment.
本说明书实施例所述的内容仅仅是对发明构思的实现形式的列 举， 本发明的保护范围的不应当被视为仅限于实施例所陈述的具体 形式， 本发明的保护范围也及于本领域技术人员根据本发明构思所  The content described in the embodiments of the present specification is merely an enumeration of the implementation forms of the inventive concept, and the scope of the present invention should not be construed as being limited to the specific forms stated in the embodiments, and the scope of the present invention is also in the field. Technician according to the inventive concept

Claims

权 利 要 求 书 Claim
1、 注塑机加料射出装置， 包括： 1. Injection molding machine feeding injection device, including:
一设置在料筒内用于搅拌和推料的搅拌螺杆；  a stirring screw disposed in the barrel for stirring and pushing the material;
一连接在所述的搅拌螺杆后部的传动螺杆；  a drive screw coupled to the rear of the agitating screw;
其特征在于：  It is characterized by:
所述的传动螺杆与所述的搅拌螺杆固接；  The transmission screw is fixed to the stirring screw;
所述的传动螺杆穿设在加料伺服电机上， 所述的加料伺服电机是 外转子伺服电机， 所述的传动螺杆通过轴承连接在加料伺服电机的基 座上， 所述的传动螺杆上套有传动螺母， 所述的传动螺母连接加料伺 服电机的外转子；  The transmission screw is disposed on the feeding servo motor, the feeding servo motor is an outer rotor servo motor, and the driving screw is connected to the base of the feeding servo motor through a bearing, and the driving screw is sleeved a transmission nut, the transmission nut is connected to an outer rotor of the feeding servo motor;
所述的传动螺杆的后部有延伸段， 所述的延伸段穿设在射出伺服 电机上， 所述的延伸段通过轴承连接在射出伺服电机的基座上， 所述 的延伸段与所述的射出伺服电机的转子之间键连接。  The rear portion of the transmission screw has an extension portion, the extension portion is disposed on the injection servo motor, and the extension portion is connected to the base of the injection servo motor through a bearing, and the extension portion is The ball is connected between the rotors of the servo motor.
2、如权利要求 1所述的射出伺服电机是外转子电机， 其特征在于: 所述的延伸段连接所述的射出伺服电机的外转子。 2. The injection servo motor according to claim 1 which is an outer rotor motor, characterized in that: said extension section connects said outer rotor of said injection servo motor.
3、如权利要求 1或 2所述的射出伺服电机是外转子电机， 其特征 在于： 所述的延伸段与所述的射出伺服电机的转子之间键连接形式是: 所述的延伸段是角棒， 所述的射出伺服电机的转子与所述的角棒连接。 3. The injection servo motor according to claim 1 or 2 is an outer rotor motor, characterized in that: the extension connection between the extension and the rotor of the injection servo motor is: the extension is An angle bar, wherein the rotor of the injection servo motor is connected to the corner bar.
PCT/CN2009/070798 2008-06-25 2009-03-16 Electric feeding and injection device WO2009155797A1 (en)

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CN1202412A (en) * 1997-05-30 1998-12-23 住友重机械工业株式会社 Built-in motor type electric injection molding apparatus
WO2007057313A1 (en) * 2005-11-18 2007-05-24 Siemens Aktiengesellschaft Plastics injection-moulding machine with integrated, linear-rotary direct drive
CN101372148A (en) * 2008-06-25 2009-02-25 联塑(杭州)机械有限公司 Electric charging and ejecting device

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CN100400263C (en) * 2006-03-28 2008-07-09 孙栓厚 Vertical plastic jet injection moulding machine set and its pressure flow supply method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1202412A (en) * 1997-05-30 1998-12-23 住友重机械工业株式会社 Built-in motor type electric injection molding apparatus
WO2007057313A1 (en) * 2005-11-18 2007-05-24 Siemens Aktiengesellschaft Plastics injection-moulding machine with integrated, linear-rotary direct drive
CN101372148A (en) * 2008-06-25 2009-02-25 联塑(杭州)机械有限公司 Electric charging and ejecting device

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