WO2017219417A1 - 一种单伺服电机驱动的注塑装置 - Google Patents
一种单伺服电机驱动的注塑装置 Download PDFInfo
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- WO2017219417A1 WO2017219417A1 PCT/CN2016/090128 CN2016090128W WO2017219417A1 WO 2017219417 A1 WO2017219417 A1 WO 2017219417A1 CN 2016090128 W CN2016090128 W CN 2016090128W WO 2017219417 A1 WO2017219417 A1 WO 2017219417A1
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- servo motor
- unit
- injection
- injection molding
- molding apparatus
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- 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
Definitions
- the invention relates to the technical field of injection molding devices, in particular to the technical field of injection molding devices driven by a single servo motor.
- the injection molding apparatus is a mechanical device for pre-molding plastic and injecting plastic which is melted after pre-molding into a mold.
- the injection molding apparatus generally includes an injection unit and a pre-molding unit.
- the injection unit includes an injection motor 001, a first toothed belt 002, a ball screw 003, and a bearing 004.
- the utility model comprises a pre-molding motor 007, a screw 008, a first toothed pulley 009 connected to the pre-molding motor 007, a second toothed pulley 010 connected to the screw 008, and a second toothed belt 011 connecting the two-toothed pulleys.
- the pre-molding motor 007 drives the first toothed belt pulley 009 connected thereto to move, and the second toothed belt pulley 010 connected to the screw 008 is moved by the second toothed belt 011 to further rotate the screw 008.
- the injection unit slide 005 can slide freely in a straight line.
- the movement process of the injection molding device is roughly divided into the following three stages:
- Pre-plasticization stage including melt and back pressure
- pre-plastic motor 007 provides power, drives the screw 008 of the injection device through the toothed belt pulley to complete the action of the melt, and the screw 008 rotates during the melt process.
- the injection unit is moved backward by the shearing force, and the ball screw 003 is forced to retreat and rotate.
- the injection motor 001 provides power, hinders the rotation of the ball screw 003, reduces the rotation speed, and the screw is connected to the injection unit slide 005.
- Nut 006 to provide back pressure
- Injection stage The injection motor 001 provides power.
- the first toothed belt 002 drives the ball screw 003 to rotate.
- the nut 006 that cooperates with the ball screw 003 is forced to move linearly.
- the nut 006 drives the injection unit slide 005 to make a straight line. Exercise, complete the injection;
- the retracting stage the injection motor 001 provides power, and the first toothed belt 002 is driven to drive the ball screw 003 to rotate.
- the nut 006 matched with the ball screw 003 is forced to move linearly, and the nut 006 is fixed.
- the injection unit slide 005 is retracted to realize the loosening action.
- both the injection unit and the pre-molding unit of the injection molding device require the motor to provide power, and the driving force is respectively provided by the injection motor and the pre-plastic motor, that is, the injection molding device of the prior art requires two motors to drive the screw and the respectively. The movement of the ball screw. The use of two motors to provide driving force makes the injection molding apparatus expensive.
- the present invention provides a single servo motor controlled injection molding apparatus which is compact in structure, excellent in dynamic performance, and low in manufacturing cost.
- the present invention discloses a single servo motor driven injection molding apparatus, including a servo motor, an injection unit, and a pre-molding unit for performing a melt action, and the injection unit is used to complete In the injection action, the injection unit and the pre-molding unit are powered by the servo motor, characterized in that the number of the servo motors is one.
- the single servo motor driven injection molding apparatus further includes an electromagnetic clutch that controls the injection unit and the pre-molding unit through the electromagnetic clutch.
- the injection unit further includes a magnetic powder clutch for providing a back pressure of the single servo motor driven injection molding device during the melt action.
- the electromagnetic clutch includes a first electromagnetic clutch and a second electromagnetic clutch.
- the servo motor controls the injection unit through the first electromagnetic clutch.
- the servo motor controls the pre-plastic unit through the second electromagnetic clutch.
- the electromagnetic clutch is an electromagnetic combination clutch, and the electromagnetic combination clutch is located between the injection unit and the pre-molding unit and is axially slidable along an axis.
- one end of the shaft is connected to the injection unit, and the other end is connected to the pre-plastic unit.
- the technical solution provided by the present invention has the following advantages: the driving force is provided to the injection unit and the pre-plastic unit by only one servo motor, so that the injection molding device completes the pre-molding phase, the injection phase, and the retreat phase, and uses
- the injection molding device of the single servo motor has a more compact space structure and better dynamic performance, and at the same time, greatly reduces the manufacturing cost of the injection molding device.
- FIG. 1 is a schematic structural view of an injection molding apparatus in the prior art
- Figure 2 is a schematic view showing the structure of an injection molding apparatus according to a first embodiment of the present invention
- Figure 3 is a side view taken along line A-A of Figure 2;
- Figure 4 is a schematic structural view of an injection molding apparatus according to a second embodiment of the present invention.
- Figure 5 is a side view taken along line B-B of Figure 4.
- Figure 6 is a schematic structural view of an injection molding apparatus according to a third embodiment of the present invention.
- Figure 7 is a side view taken along line C-C of Figure 6;
- Figure 8 is a schematic structural view of an injection molding apparatus according to a fourth embodiment of the present invention.
- Figure 9 is a side view taken along line D-D of Figure 8.
- FIG. 2 is a schematic structural view of a single servo motor driven injection molding apparatus according to a first embodiment of the present invention
- FIG. 3 is a side view taken along line A-A of FIG. 2, wherein FIG. 3 mainly illustrates a transmission mechanism of the injection molding apparatus.
- the injection molding apparatus provided by the present invention includes an injection unit slide plate (not shown), a servo motor 108, a magnetic powder clutch 110, and a fourth toothed belt pulley 109 connected to the magnetic powder clutch 110.
- the injection unit includes a third toothed pulley 107 coupled to the servo motor 108, a fifth toothed pulley 114 coupled to the ball screw 112, and a first toothed shape connecting the third, fourth, and fifth toothed pulleys a belt 111, a ball screw 112, wherein the ball screw 112 is fixed on the injection unit slide plate, the nut 113 is fixed on the injection tail plate, the ball screw 112 and the nut 113 are matched; the screw pre-plastic unit comprises a screw 101, and a screw 101 connected first toothed pulley 102, second toothed pulley 104 connected to servo motor 108, second toothed belt 103 connecting first and second toothed pulleys; first electromagnetic clutch 106 is used The movement of the third toothed pulley 107 of the injection unit is controlled, and the second electromagnetic clutch 105 is used to control the movement of the second toothed pulley 104 in the pre-molding unit.
- the injection unit slide can
- (1) Injection stage the servo motor 108 rotates forward, (the first electromagnetic clutch 106 is engaged, and the corresponding third toothed belt pulley 107 rotates with the motor shaft) to drive the third toothed belt pulley 107 to rotate forward, through the first
- the toothed belt 111 is driven, and the fifth toothed belt pulley 114 is rotated forward (the magnetic powder clutch 110 is de-energized at this stage, without damping, the fourth toothed belt pulley 109 is rotating forward), and the ball wire coupled with the fifth toothed belt pulley 114
- the rod 112 rotates forward and advances (the ball screw 112 and the fifth toothed belt pulley 114 are coupled by a spline, and the nut 113 is directly fixed to the base; the screw 101 and the ball screw 112 are fixed on the injection unit, and can be injected
- the unit reciprocates linearly, and can also rotate around its own axis, thereby driving the entire injection unit to advance.
- the melt action: the servo motor 108 is reversed, (the second electromagnetic clutch 105 is sucked, the corresponding second toothed belt pulley 104 is reversed with the motor shaft), and is driven by the second toothed belt 103, the first tooth profile
- the pulley 102 is reversed, and the screw 101 spline-coupled with the first toothed belt pulley 102 is reversed to start the melting, (when the screw 101 is reversed, it moves linearly backward).
- the screw 101 moves linearly backward, that is, the injection unit retreats (the screw 101 and the ball screw 112 are fixed on the injection unit, and can reciprocate linearly with the injection unit, and can also rotate around its own axis).
- the ball screw 112 is forced to retreat and reverse, and the fifth toothed pulley 114 coupled to the ball screw 112 (the ball screw 112 and the fifth toothed belt pulley 114 are spline-coupled) is reversed.
- the fourth toothed belt pulley 109 is forced to reverse (the magnetic powder clutch 110 is energized at this time, providing damping of a certain torque, The magnitude of the torque is adjusted by the magnitude of the current of the magnetic powder clutch 110.
- the function of the back pressure is simultaneously achieved by the melt.
- FIG. 4 is a schematic structural view of a single servo motor driven injection molding apparatus according to a second embodiment of the present invention
- FIG. 5 is a side view along BB of FIG. 4, wherein FIG. 5 mainly illustrates a transmission mechanism of the injection molding apparatus.
- a set of electromagnetic combination clutches 201 is used in place of the first and second electromagnetic clutches in the first embodiment.
- the electromagnetic combination clutch 201 is coupled to the servo motor 202 and is mounted between the first toothed pulley 203 of the injection unit and the second toothed pulley 204 of the pre-molded unit.
- the electromagnetic combination clutch 201 can be shaft To slide, by controlling the opening and closing of the electromagnetic combination clutch to control the rotation form of the gear, specifically, when the electromagnetic combination clutch 201 is engaged with the first toothed belt pulley 203 of the left injection unit and separated from the right pre-plastic unit, The corresponding first toothed belt pulley 203 on the left side rotates with the motor shaft, and the corresponding second toothed belt pulley 204 on the right side The rotation is not affected by the rotation of the motor shaft; vice versa.
- FIG. 6 is a schematic structural view of a single servo motor driven injection molding apparatus according to a third embodiment of the present invention
- FIG. 7 is a side view along CC of FIG. 6, wherein FIG. 7 mainly illustrates a transmission mechanism of the injection molding apparatus.
- the motor shaft of the servo motor 301 is directly coupled to the first gear 302 of the injection unit, the second toothed pulley 303 of the pre-molding unit, the first gear 302 and the second toothed pulley 303.
- the first electromagnetic clutch 306 is mounted on the shaft and located between the second gear 305 and the third toothed pulley 307, while the third toothed pulley 307,
- the four-toothed pulley 308 and the fifth toothed pulley 309 are fixedly driven to each other by the first toothed belt 310, and at the same time, the ball screw 311 is connected to the fifth toothed pulley 309 and fixed to the injection unit slide (in the figure) Not shown), the nut 312 is fixed to the tailgate of the mount, and the ball screw 311 and the nut 312 are engaged; in the pre-molding unit, the first toothed pulley 313 and the second toothed pulley 303 pass the second toothed belt
- the 314 drive, the screw 315 is directly coupled to the second toothed pulley 303.
- the magnetic powder clutch 316 is coupled to the fourth toothed pulley 308.
- Pre-plasticization stage including melt action and back pressure function, as follows:
- the screw 315 moves linearly backward, that is, the injection unit retreats (the screw 315 and the ball screw 311 are fixed on the injection unit, and can reciprocate linearly with the injection unit, and can also rotate around its own axis).
- the ball screw 311 is forced to retreat and reverse, and the fifth toothed pulley 309 coupled to the ball screw 311 (the ball screw 311 and the fifth toothed belt pulley 309 are spline-coupled) is reversed.
- the fourth toothed belt pulley 308 is forced to reverse (at this time, the magnetic powder clutch 316 is energized to provide damping of a certain torque, and the magnitude of the torque is adjusted by the current magnitude of the magnetic powder clutch 316), so that the function of the back pressure is realized at the same time.
- the retracting phase the servo motor 301 rotates forward, and the first gear 302 rotates forward, and the second gear 305 meshed with it is reversed (the second electromagnetic clutch 304 is disengaged, and the first electromagnetic clutch 306 is engaged, corresponding to the first
- the three-toothed pulley 307 rotates with the axis of the second gear 305 to drive the third toothed belt pulley 307 to reverse, and is driven by the first toothed belt 310, and the fifth toothed belt pulley 309 is reversed (the magnetic powder clutch of this stage)
- the 316 is de-energized, undamped, and the fourth toothed pulley 308 is reversed.
- the ball screw 311 coupled to the fifth toothed pulley 309 is reversed and retracted, and the entire injection unit is retracted to achieve the retracting function.
- FIG. 8 is a schematic structural view of a single servo motor driven injection molding apparatus according to a fourth embodiment of the present invention
- FIG. 9 is a side view along DD of FIG. 8, wherein FIG. 9 mainly illustrates a transmission mechanism of the injection molding apparatus.
- the servo motor 401 is a double-outlet servo motor, which is located between the injection unit and the pre-molding unit, and passes through the motor shaft and the first toothed belt pulley 402 of the injection unit and the fourth of the pre-plastic unit.
- the pulley 403 is connected, and a first electromagnetic clutch 404 is mounted on the motor shaft between the servo motor 401 and the first toothed pulley 402, and the motor shaft is mounted between the servo motor 401 and the fourth toothed pulley 403.
- a second electromagnetic clutch 405 is provided, wherein in the injection unit, the first toothed pulley 402, the second toothed pulley 406, and the third toothed pulley 407 are driven by the first toothed belt 408, and the ball screw 409 It is connected to the third toothed pulley 407 and fixed on the injection unit sliding plate (not shown), the nut 410 is fixed on the shooting tail plate, the ball screw 409 and the nut 410 are matched; in the pre-plastic unit, the fourth The toothed pulley 403 and the fifth toothed pulley 411 are driven by the second toothed belt 412, and the screw 413 and the fifth toothed pulley 411 are splined. Further, the magnetic powder clutch 414 is coupled to the second toothed pulley.
- (1) Injection stage the servo motor 401 rotates forward, (the second electromagnetic clutch 405 is disengaged, the first electromagnetic clutch 404 is engaged, and the corresponding first toothed belt pulley 402 rotates with the motor shaft) to drive the first toothed belt pulley.
- the forward rotation of 402 is transmitted through the first toothed belt 408, and the third toothed belt pulley 407 is rotated forward (the magnetic powder clutch 414 is de-energized at this stage, without damping, the second toothed belt pulley 406 is rotating forward), and the third toothed shape.
- the ball screw 409 with the wheel coupling rotates forward and advances (the ball screw 409 and the third toothed belt pulley 407 are coupled by a spline, and the nut 410 is directly fixed to the frame; the screw 413 and the screw are fixed on the injection unit It can reciprocate linearly with the injection unit, or can rotate around its own axis), thereby driving the entire injection unit to advance and perform the injection action.
- the fifth toothed pulley 411 is reversed, and the screw 413 spline-coupled with the fifth toothed pulley 411 is reversed to start the melting, (the screw 413 is reversed while moving linearly backward).
- the screw 413 moves linearly backward, that is, the injection unit retreats (the screw 413 and the screw 409 are fixed on the injection unit, and can reciprocate linearly with the injection unit, and can also rotate around its own axis).
- the ball screw 409 is forced to retreat and reverse, at this time, the third toothed pulley 407 coupled with the ball screw 409 (the ball screw 409 and the third toothed pulley 407 are spline-coupled) is reversed, and at the same time
- the second toothed pulley 406 is forced to reverse (when the magnetic powder clutch 414 is energized to provide damping of a certain torque, the magnitude of the torque is adjusted by the magnitude of the current of the magnetic powder clutch 414), so that the melt achieves the function of back pressure at the same time.
- the injection unit of the injection molding apparatus mainly comprises three large plates: 1.
- the head plate is fixed on the injection seat of the injection molding device, and is fixed during the injection process, and the injection molding device barrel is mounted on the head.
- the tail plate is fixed on the injection seat of the injection molding device, and is fixed during the injection process, and the nut of the screw nut mechanism is fixed on the tail plate. of.
- the technical solution provided by the present invention has the following advantages: the driving force is provided to the injection unit and the pre-plastic unit by only one servo motor, so that the injection molding device completes the pre-molding phase, the injection phase, and the retreat phase, and uses
- the injection molding device of the single servo motor has a more compact space structure and better dynamic performance, and at the same time, greatly reduces the manufacturing cost of the injection molding device.
- the qualifiers similar to "first" and “second” appearing in this document do not refer to the limitation of chronological order, quantity, or importance, but merely to be a technique in the technical solution. Features are distinguished from another technical feature. Similarly, the qualifiers similar to “one” appearing herein are not intended to limit the quantity, but rather to describe the technical features that have not appeared in the foregoing. Similarly, in this article Modifiers similar to "about” and “approximately” appearing before a numeral generally include the plural, and its specific meaning should be understood in connection with the context. Similarly, unless a noun is modified by a particular quantity, it should be considered as including the singular and the plural. In the technical solution, the singular number of the technical features may be included, and the plural may also be included. Technical characteristics.
- the single servo motor driven injection molding device provided by the invention provides driving force for the injection unit and the pre-plastic unit through only one servo motor, so that the injection molding device completes the pre-plasticization phase, the injection phase, the loosening phase, and the injection molding using the single servo motor.
- the device has a more compact space structure and better dynamic performance, and at the same time, greatly reduces the manufacturing cost of the injection molding device.
Abstract
一种单伺服电机驱动的注塑装置，包括伺服电机（108）、注射单元、预塑单元，预塑单元用于完成熔料动作，注射单元用于完成射出动作，注射单元和预塑单元由伺服电机（108）提供动力，伺服电机的数量为一。该装置用于解决现有技术中双伺服电机驱动注塑装置的技术问题。
Description
本发明涉及注塑装置技术领域，尤其涉及单伺服电机驱动的注塑装置技术领域。
注塑装置是一种用于将塑料进行预塑，并且将预塑后熔化的塑料注射到模具中的机械装置。
图1是现有技术中注塑装置的结构示意图，如图所示，注塑装置通常包括注射单元和预塑单元，注射单元包括注射电机001、第一齿形皮带002、滚珠丝杠003、轴承004、注射单元滑板005，其中，注射电机001提供动力，通过第一齿形皮带002带动滚珠丝杠003做旋转运动，滚珠丝杠003与固定在注射单元滑板005上的螺母006接合；预塑单元包括预塑电机007、螺杆008、与预塑电机007相连的第一齿形带轮009、与螺杆008相连的第二齿形带轮010以及连接两齿形带轮的第二齿形皮带011，其中，预塑电机007驱动与其相连的第一齿形带轮009运动，通过第二齿形皮带011带动与螺杆008相连的第二齿形带轮010运动，进一步螺杆008进行旋转运动。此外，注射单元滑板005可以来回自由直线滑行。
注塑装置的运动过程大致分为以下三个阶段：
1、预塑阶段：包括熔料和背压，预塑电机007提供动力，通过齿形带轮传动，带动注塑装置的螺杆008旋转，完成熔料的动作，熔料过程中，螺杆008旋转，注射单元受到剪切力的作用向后运动，滚珠丝杠003被迫后退且旋转，此时，注射电机001提供动力，阻碍滚珠丝杠003旋转，降低转速，丝杠通过与注射单元滑板005连接的螺母006，从而提供背压；
2、注射阶段：注射电机001提供动力，通过第一齿形皮带002传动带动滚珠丝杠003旋转运动，与滚珠丝杠003配合的螺母006被迫直线运动，螺母006带动注射单元滑板005进行直线运动，完成注射；
3、松退阶段：注射电机001提供动力，通过第一齿形皮带002传动，带动滚珠丝杠003旋转运动，与滚珠丝杠003配合的螺母006被迫做直线运动，带动与螺母006固定的注射单元滑板005后退，实现松退动作。
现有技术中，注塑装置的注射单元和预塑单元均需要电机提供动力，并分别由注射电机和预塑电机提供驱动力，即现有技术中的注塑装置需要两个电机来分别驱动螺杆和滚珠丝杠的运动。采用两个电机提供驱动力，使得该注塑装置的成本高昂。
有鉴于此，如何设计一种新的注塑装置，以消除现有技术中的上述缺陷和不足，是业内相关技术人员亟待解决的一项课题。
发明内容
为了克服现有技术中的技术问题，本发明提供了一种单伺服电机控制的注塑装置，其结构紧凑、动态性能优良、制造成本低。
为了实现上述发明目的，本发明公开了一种单伺服电机驱动的注塑装置，包括伺服电机、注射单元、预塑单元，所述预塑单元用于完成熔料动作，所述注射单元用于完成射出动作，所述注射单元和所述预塑单元由所述伺服电机提供动力，其特征在于，所述伺服电机的数量为一。
更进一步地，所述单伺服电机驱动的注塑装置还包括一电磁离合器，所述伺服电机通过所述电磁离合器控制所述注射单元和所述预塑单元。
更进一步地，所述注射单元还包括一磁粉离合器，用于提供所述单伺服电机驱动的注塑装置在熔料动作时的背压。
更进一步地，所述电磁离合器包括一第一电磁离合器和一第二电磁离合器。
更进一步地，所述伺服电机通过所述第一电磁离合器控制所述注射单元。
更进一步地，所述伺服电机通过所述第二电磁离合器控制所述预塑单元。
更进一步地，所述电磁离合器为一电磁组合离合器，所述电磁组合离合器位于所述注射单元和所述预塑单元之间，并可沿一轴进行轴向滑动。
更进一步地，所述轴一端与所述注射单元连接，另一端与所述预塑单元连接。
与现有技术相比较，本发明所提供的技术方案具有以下优点：仅通过一个伺服电机为注射单元和预塑单元提供驱动力，使注塑装置完成预塑阶段、注射阶段、松退阶段，使用单伺服电机的注塑装置，其空间结构更加紧凑、动态性能更加优良，同时，大大降低了注塑装置的生产制造成本。
关于本发明的优点与精神可以通过以下的发明详述及所附图式得到进一步的了解。
图1是现有技术中注塑装置的结构示意图；
图2是本发明所涉及的第一实施例的注塑装置的结构示意图；
图3是沿图2中A-A的侧视图；
图4是本发明所涉及的第二实施例的注塑装置的结构示意图；
图5是沿图4中B-B的侧视图；
图6是本发明所涉及的第三实施例的注塑装置的结构示意图；
图7是沿图6中C-C的侧视图；
图8是本发明所涉及的第四实施例的注塑装置的结构示意图；
图9是沿图8中D-D的侧视图。
最佳实施例
下面结合附图详细说明本发明的具体实施例。然而，应当将本发明理解成并不局限于以下描述的这种实施方式，并且本发明的技术理念可以与其他公知技术或功能与那些公知技术相同的其他技术组合实施。
在以下具体实施例的说明中，为了清楚展示本发明的结构及工作方式，将借助诸多方向性词语进行描述，但是应当将“前”、“后”、“左”、“右”、“外”、“内”、“向外”、“向内”、“轴向”、“径向”等词语理解为方便用语，而不应当理解为限定性词语。此外，在以下描述中所实用的“正转”一词是指，以图3为参考，其齿轮的顺时针方向为正转，相反，逆时针转为反转。
本发明的目的在于提供一种单伺服电机驱动的注塑装置，实现注塑装置的单伺服电机控制。
下面结合附图2-9详细说明本发明的具体实施例。
第一实施例
图2是本发明所涉及的第一实施例的单伺服电机驱动注塑装置的结构示意图，图3是沿图2中A-A的侧视图，其中，图3主要示意出了该注塑装置的传动机构。如图2-3所示，本发明提供的注塑装置包括注射单元滑板(图中未示出)、伺服电机108、磁粉离合器110、与磁粉离合器110连接的第四齿形带轮109、
注射单元、预塑单元以及第一离合器106、第二离合器105。注射单元包括与伺服电机108连接的第三齿形带轮107、与滚珠丝杠112连接的第五齿形带轮114、连接第三、第四和第五齿形带轮的第一齿形皮带111、滚珠丝杠112，其中，滚珠丝杠112固定于注射单元滑板上，螺母113固定于射座尾板上，滚珠丝杠112和螺母113配合；丝杠预塑单元包括螺杆101、与螺杆101连接的第一齿形带轮102、与伺服电机108连接的第二齿形带轮104、连接第一、第二齿形带轮的第二齿形皮带103；第一电磁离合器106用来控制注射单元的第三齿形带轮107的运动，第二电磁离合器105用来控制预塑单元中第二齿形带轮104的运动。此外，注射单元滑板可以来回自由直线滑行。
下面将根据注塑装置的三个不同阶段来说明本发明第一实施例所提供的注塑装置：
(1)注射阶段：伺服电机108正转，(第一电磁离合器106吸合，对应的第三齿形带轮107随电机轴正转)带动第三齿形带轮107正转，通过第一齿形皮带111传动,第五齿形带轮114正转(此阶段磁粉离合器110断电，无阻尼,第四齿形带轮109正转)，与第五齿形带轮114联接的滚珠丝杠112正转且前进(滚珠丝杠112与第五齿形带轮114通过花键联接，螺母113直接固定在机座上；螺杆101、滚珠丝杠112均固定于注射单元上，可随注射单元直线往复运动，也可绕自身轴线作旋转运动)，从而带动整个注射单元前进做射出动作。
(2)预塑阶段：
包括熔料动作和背压功能，如下：
A、熔料动作：伺服电机108反转，(第二电磁离合器105吸合，对应的第二齿形带轮104随电机轴反转)，通过第二齿形皮带103传动,第一齿形带轮102反转,与第一齿形带轮102花键联接的螺杆101随其反转，开始熔料，(此时螺杆101反转的同时向后直线运动)。
B、背压功能：螺杆101向后直线运动，即注射单元后退(螺杆101、滚珠丝杠112均固定于注射单元上，可随注射单元直线往复运动，也可绕自身轴线作旋转运动)，此时滚珠丝杠112被迫后退且反转，此时与滚珠丝杠112(滚珠丝杠112与第五齿形带轮114通过花键联接)联接的第五齿形带轮114反转，同时第四齿形带轮109被迫反转(此时磁粉离合器110通电，提供一定扭矩的阻尼，
扭矩的大小通过磁粉离合器110的电流大小调节),如此，熔料的同时实现背压的功能。
(3)松退阶段：伺服电机108反转，(第一电磁离合器106吸合，对应的第三齿形带轮107随电机轴反转)带动第三齿形带轮107反转，通过第一齿形皮带111传动,第五齿形带轮114反转(此阶段磁粉离合器110断电，无阻尼,第四齿形带轮109反转)，与第五齿形带轮114联接的滚珠丝杠112反转且后退，整个注射单元后退以实现松退功能。
下表是本发明所提供的第一实施例的单伺服电机驱动的注塑装置的各部件运动逻辑表：
第二实施例
图4是本发明所涉及的第二实施例的单伺服电机驱动的注塑装置的结构示意图，图5是沿图4中B-B的侧视图，其中，图5主要示意出了该注塑装置的传动机构。如图4和5所示，与第一实施例中的注塑装置不同的是：此实施例中用一组电磁组合离合器201代替第一实施例中的第一、第二电磁离合器。本实施例中，该电磁组合离合器201与伺服电机202连接，并且安装在注射单元的第一齿形带轮203和预塑单元的第二齿形带轮204之间，电磁组合离合器201可以轴向滑动，通过控制电磁组合离合器的开合控制齿轮的转动形式，具体为，当电磁组合离合器201与左侧注射单元的第一齿形带轮203吸合、与右侧预塑单元分离时，对应的左侧的第一齿形带轮203随电机轴转动，对应的右侧的第二齿形带轮204
转动不受电机轴转动的影响；反之同理。
第三实施例
图6是本发明所涉及的第三实施例的单伺服电机驱动的注塑装置的结构示意图，图7是沿图6中C-C的侧视图，其中，图7主要示意出了该注塑装置的传动机构。如图6和7所示，伺服电机301的电机轴直接与注射单元的第一齿轮302、预塑单元的第二齿形带轮303相连接，第一齿轮302和第二齿形带轮303之间具有第二电磁离合器304，该第二电磁离合器304安装于电机轴上，用于控制第二齿形带轮303的转动形式，其中，注射单元中，第一齿轮302和第二齿轮305相互作用，并安装于同一根轴上，第一电磁离合器306安装于该轴上，且位于第二齿轮305和第三齿形带轮307之间，同时，第三齿形带轮307、第四齿形带轮308、第五齿形带轮309通过第一齿形皮带310相互固定传动，同时，滚珠丝杠311与第五齿形带轮309连接，并固定在注射单元滑板(图中未示出)上，螺母312固定于射座尾板上，滚珠丝杠311和螺母312配合；预塑单元中，第一齿形带轮313与第二齿形带轮303通过第二齿形皮带314传动，螺杆315直接与第二齿形带轮303连接。此外，磁粉离合器316与第四齿形带轮308相连接。
下面将根据注塑装置的三个不同阶段来说明本发明第三实施例所提供的注塑装置：
(1)注射阶段：伺服电机301反转，带动第一齿轮302反转，与之啮合的第二齿轮305正转(第二电磁离合器304分离，第一电磁离合器306吸合，对应的第三齿形带轮307随第二齿轮305的轴正转)带动第三齿形带轮307正转，通过第一齿形皮带310传动,第五齿形带轮309正转(此阶段磁粉离合器316断电，无阻尼,第四齿形带轮308正转)，与第五齿形带轮309联接的滚珠丝杠311正转且前进(滚珠丝杠311与第五齿形带轮309通过花键联接，螺母312直接固定在机座上；螺杆315、滚珠丝杠311均固定于注射单元上，可随注射单元直线往复运动，也可绕自身轴线作旋转运动)，从而带动整个注射单元前进做射出动作。
(2)预塑阶段：包括熔料动作和背压功能，如下：
A、熔料动作：伺服电机301反转，(第一电磁离合器306分离，第二电磁离合器304吸合，对应的第二齿形带轮303随电机轴反转)，通过第二齿形皮带314传动,第一齿形带轮313反转,与第一齿形带轮313花键联接的螺杆315随
其反转，开始熔料，(此时螺杆315反转的同时向后直线运动)。
B、背压功能：螺杆315向后直线运动，即注射单元后退(螺杆315、滚珠丝杠311均固定于注射单元上，可随注射单元直线往复运动，也可绕自身轴线作旋转运动)，此时滚珠丝杠311被迫后退且反转，此时与滚珠丝杠311(滚珠丝杠311与第五齿形带轮309通过花键联接)联接的第五齿形带轮309反转，同时第四齿形带轮308被迫反转(此时磁粉离合器316通电，提供一定扭矩的阻尼，扭矩的大小通过磁粉离合器316的电流大小调节),如此，熔料的同时实现背压的功能。
(3)松退阶段：伺服电机301正转，带动第一齿轮302正转，与之啮合的第二齿轮305反转(第二电磁离合器304分离，第一电磁离合器306吸合，对应的第三齿形带轮307随第二齿轮305的轴反转)带动第三齿形带轮307反转，通过第一齿形皮带310传动,第五齿形带轮309反转(此阶段磁粉离合器316断电，无阻尼,第四齿形带轮308反转)，与第五齿形带轮309联接的滚珠丝杠311反转且后退，整个注射单元后退以实现松退功能。
下表是本发明所提供的第三实施例的单伺服电机驱动的注塑装置的各部件运动逻辑表：
第四实施例
图8是本发明所涉及的第四实施例的单伺服电机驱动的注塑装置的结构示意图，图9是沿图8中D-D的侧视图，其中，图9主要示意出了该注塑装置的传动机构。如图8-9所示，伺服电机401为双出轴伺服电机，位于注射单元和预塑单元之间，通过电机轴分别与注射单元的第一齿形带轮402、预塑单元的第四齿
形带轮403连接，并且，伺服电机401与第一齿形带轮402之间的电机轴上装设有第一电磁离合器404，伺服电机401与第四齿形带轮403之间的电机轴上装设有第二电磁离合器405，其中，注射单元中，第一齿形带轮402、第二齿形带轮406、第三齿形带轮407通过第一齿形皮带408传动，滚珠丝杠409与第三齿形带轮407连接，并固定在注射单元滑板(图中未示出)上，螺母410固定于射座尾板上，滚珠丝杠409和螺母410配合；预塑单元中，第四齿形带轮403、第五齿形带轮411通过第二齿形皮带412传动，螺杆413和第五齿形带轮411花键连接。此外，磁粉离合器414与第二齿形带轮相连接。
下面将根据注塑装置的三个不同阶段来说明本发明第四实施例所提供的注塑装置：
(1)注射阶段：伺服电机401正转，(第二电磁离合器405分离，第一电磁离合器404吸合，对应的第一齿形带轮402随电机轴正转)带动第一齿形带轮402正转，通过第一齿形皮带408传动,第三齿形带轮407正转(此阶段磁粉离合器414断电，无阻尼,第二齿形带轮406正转)，与第三齿形带轮联接的滚珠丝杠409正转且前进(滚珠丝杠409与第三齿形带轮407通过花键联接，螺母410直接固定在机座上；螺杆413、丝杠均固定于注射单元上，可随注塑单元直线往复运动，也可绕自身轴线作旋转运动)，从而带动整个注射单元前进做射出动作。
(2)预塑阶段
包括熔料动作和背压功能，如下：
A、熔料动作：伺服电机401反转，(第一离合器404分离，第二离合器405吸合，对应的第四齿形带轮403随电机轴反转)，通过第二齿形皮带412传动,第五齿形带轮411反转,与第五齿形带轮411花键联接的螺杆413随其反转，开始熔料，(此时螺杆413反转的同时向后直线运动)。
B、背压功能：螺杆413向后直线运动，即注射单元后退(螺杆413、丝杠409均固定于注射单元上，可随注射单元直线往复运动，也可绕自身轴线作旋转运动)，此时滚珠丝杠409被迫后退且反转，此时与滚珠丝杠409(滚珠丝杠409与第三齿形带轮407通过花键联接)联接的第三齿形带轮407反转，同时第二齿形带轮406被迫反转(此时磁粉离合器414通电，提供一定扭矩的阻尼，扭矩的大小通过磁粉离合器414的电流大小调节),如此，熔料的同时实现背压的功能。
(3)松退阶段：伺服电机401反转，(第二离合器405分离，第一离合器404吸合，对应的第一齿形带轮402随电机轴反转)带动第一齿形带轮402反转，通过第一齿形皮带408传动,第三齿形带轮407反转(此阶段磁粉离合器414断电，无阻尼,第二齿形带轮406反转)，与第三齿形带轮407联接的丝杠409反转且后退，整个注射单元后退以实现松退功能。
下表是本发明所提供的第四实施例的单伺服电机驱动的注塑装置的各部件运动逻辑表：
此外，本领域的普通技术人员应当知悉，注塑装置注射单元主要包含三大板：1、头板：固定于注塑装置射座上，射出过程中是固定不动的，注塑装置料筒是安装于头板上；2、二板：即本申请文件中所称的注射单元滑板，安装于头板和尾板之间的拉杆上，是可以沿着注射方向直线滑动的，注塑装置螺杆安装在该板上，射出和松退就是该板的滑动带动螺杆前后运动的；3、尾板：固定于注塑装置射座上，射出过程中是固定不动的，丝杠螺母机构的螺母是固定于尾板上的。
与现有技术相比较，本发明所提供的技术方案具有以下优点：仅通过一个伺服电机为注射单元和预塑单元提供驱动力，使注塑装置完成预塑阶段、注射阶段、松退阶段，使用单伺服电机的注塑装置，其空间结构更加紧凑、动态性能更加优良，同时，大大降低了注塑装置的生产制造成本。
如无特别说明，本文中出现的类似于“第一”、“第二”的限定语并非是指对时间顺序、数量、或者重要性的限定，而仅仅是为了将本技术方案中的一个技术特征与另一个技术特征相区分。同样地，本文中出现的类似于“一”的限定语并非是指对数量的限定，而是描述在前文中未曾出现的技术特征。同样地，本文中
在数词前出现的类似于“大约”、“近似地”的修饰语通常包含本数，并且其具体的含义应当结合上下文意理解。同样地，除非是有特定的数量量词修饰的名词，否则在本文中应当视作即包含单数形式又包含复数形式，在该技术方案中即可以包括单数个该技术特征，也可以包括复数个该技术特征。
本说明书中所述的只是本发明的较佳具体实施例，以上实施例仅用以说明本发明的技术方案而非对本发明的限制。凡本领域技术人员依本发明的构思通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在本发明的范围之内。
本发明所提供的单伺服电机驱动的注塑装置，仅通过一个伺服电机为注射单元和预塑单元提供驱动力，使注塑装置完成预塑阶段、注射阶段、松退阶段，使用单伺服电机的注塑装置，其空间结构更加紧凑、动态性能更加优良，同时，大大降低了注塑装置的生产制造成本。
Claims (8)
- 一种单伺服电机驱动的注塑装置，包括伺服电机、注射单元、预塑单元，所述预塑单元用于完成熔料动作，所述注射单元用于完成射出动作，所述注射单元和所述预塑单元由所述伺服电机提供动力，其特征在于，所述伺服电机的数量为一。
- 如权利要求1所述的单伺服电机驱动的注塑装置，其特征在于，所述单伺服电机驱动的注塑装置还包括一电磁离合器，所述伺服电机通过所述电磁离合器控制所述注射单元和所述预塑单元。
- 如权利要求1所述的单伺服电机驱动的注塑装置，其特征在于，所述注射单元还包括一磁粉离合器，用于提供所述单伺服电机驱动的注塑装置在熔料动作时的背压。
- 如权利要求2所述的单伺服电机驱动的注塑装置，其特征在于，所述电磁离合器包括一第一电磁离合器和一第二电磁离合器。
- 如权利要求4所述的单伺服电机驱动的注塑装置，其特征在于，所述伺服电机通过所述第一电磁离合器控制所述注射单元。
- 如权利要求5所述的单伺服电机驱动的注塑装置，其特征在于，所述伺服电机通过所述第二电磁离合器控制所述预塑单元。
- 如权利要求2所述的单伺服电机驱动的注塑装置，其特征在于，所述电磁离合器为一电磁组合离合器，所述电磁组合离合器位于所述注射单元和所述预塑单元之间，并可沿一轴进行轴向滑动。
- 如权利要求7所述的单伺服电机驱动的注塑装置，其特征在于，所述轴一端与所述注射单元连接，另一端与所述预塑单元连接。
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|---|---|---|---|
| CN201620640888.XU CN205767202U (zh) | 2016-06-24 | 2016-06-24 | 一种单伺服电机驱动的注塑装置 |
| CN201620640888.X | 2016-06-24 |
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| WO2017219417A1 true WO2017219417A1 (zh) | 2017-12-28 |
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| PCT/CN2016/090128 WO2017219417A1 (zh) | 2016-06-24 | 2016-07-15 | 一种单伺服电机驱动的注塑装置 |
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| CN105984078A (zh) * | 2016-06-24 | 2016-10-05 | 苏州锦珂塑胶科技有限公司 | 一种单伺服电机驱动的注塑装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106043A (zh) * | 1985-07-12 | 1987-01-07 | 上海塑料制品五厂 | 单电机机械传动式预塑注射机构 |
| CN201179710Y (zh) * | 2008-03-13 | 2009-01-14 | 华南理工大学 | 双传动功能电动式注射成型系统 |
| CN105984078A (zh) * | 2016-06-24 | 2016-10-05 | 苏州锦珂塑胶科技有限公司 | 一种单伺服电机驱动的注塑装置 |
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- 2016-06-24 CN CN201620640888.XU patent/CN205767202U/zh active Active
- 2016-07-15 WO PCT/CN2016/090128 patent/WO2017219417A1/zh active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106043A (zh) * | 1985-07-12 | 1987-01-07 | 上海塑料制品五厂 | 单电机机械传动式预塑注射机构 |
| CN201179710Y (zh) * | 2008-03-13 | 2009-01-14 | 华南理工大学 | 双传动功能电动式注射成型系统 |
| CN105984078A (zh) * | 2016-06-24 | 2016-10-05 | 苏州锦珂塑胶科技有限公司 | 一种单伺服电机驱动的注塑装置 |
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