WO2019137069A1 - 一种在弹簧表面植绒的方法 - Google Patents

一种在弹簧表面植绒的方法 Download PDF

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Publication number
WO2019137069A1
WO2019137069A1 PCT/CN2018/112543 CN2018112543W WO2019137069A1 WO 2019137069 A1 WO2019137069 A1 WO 2019137069A1 CN 2018112543 W CN2018112543 W CN 2018112543W WO 2019137069 A1 WO2019137069 A1 WO 2019137069A1
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WIPO (PCT)
Prior art keywords
spring
flocking
glue
fluff
electrostatic
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PCT/CN2018/112543
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English (en)
French (fr)
Inventor
赵春啸
葛敬东
唐朋万
唐书豪
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太仓卡兰平汽车零部件有限公司
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=67219301&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2019137069(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CN201820056927.0U external-priority patent/CN207899626U/zh
Application filed by 太仓卡兰平汽车零部件有限公司 filed Critical 太仓卡兰平汽车零部件有限公司
Priority to JP2020558670A priority Critical patent/JP7287980B2/ja
Publication of WO2019137069A1 publication Critical patent/WO2019137069A1/zh
Priority to JP2023086513A priority patent/JP2023123428A/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/16—Flocking otherwise than by spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs

Definitions

  • the present invention relates to the field of flocking of metal surfaces, and more particularly to a method of flocking a surface of a spring.
  • the existing hand flocking fluff is freely scattered on the surface of the glue to be flocked.
  • the fluff cannot be directly inserted into the glue, and the fastness of the fluff is unstable. During the process of using friction, the fluff may fall off during use. Reliability is reduced and falling fluff can contaminate other components.
  • the traditional flocking springs are all made by spraying glue and electrostatic flocking. After the completion, the inner and outer sides of the spring are flocked. Since the fluff implanted inside the spring body not only does not reduce the friction, it also adds springs. The inner and outer diameters, for many systems with relatively small design space, the increase of the inner and outer diameter of the spring makes the design and assembly of the spring difficult.
  • the flocking spring applied to the electric tailgate on the market is flocked on the surface of the bottom anti-rust coating for electrophoretic paint.
  • the wastewater generated by the electrophoretic paint brings environmental problems, and the electrophoretic coating is a closed coating, and once scratched by the outside, it will quickly rust and gradually spread.
  • the surface of the spring is made of zinc-aluminum coating as a coating.
  • glue when ordinary glue is applied to the surface of the zinc-aluminum coating, the glue cannot be firmly adhered to the surface of the coating and can be easily scraped off.
  • the technical problem to be solved by the present invention is to design a fully automatic flocking line to be applied to a spring surface flocking instead of a manual flocking method, continuous production, and high production efficiency.
  • the glue and fluff thickness is stable;
  • the design uses the electrostatic flocking method for flocking, which is different from the traditional way to meet the uniform flocking on the surface of the shaped wire; using the electrostatic flocking method, after the glue is cured
  • the fineness of the fluff is relatively high, and the surface substrate is not exposed after the test of the fluffiness test of 40,000 times; the spring is fully pressed by the tooling, and then the spring is directly attached to the flocking device, thereby achieving flocking only on the outer surface of the spring.
  • the present invention provides a method of flocking a spring surface, comprising at least the following steps:
  • the hook is used to secure the spring above the conveyor chain and the spring enters the production line with the conveyor chain;
  • the glue is atomized through the nozzle, and is charged with a negative charge, the spring is grounded or connected to a zero potential, and the glue is evenly attached to the surface of the spring by electrostatic adsorption;
  • the spring After the spring is sprayed, it enters the electrostatic flocking chamber for flocking.
  • the spring node is connected to the zero potential.
  • the fluff touches the spring surface during the movement, the fluff will be perpendicular to the spring surface in the vertical direction, and the glue is inserted under the action of electrostatic attraction. internal;
  • the flocked spring enters the drying device for drying
  • the dried spring passes through the brush and uses compressed air to blow the spring surface to remove the floating surface of the spring surface;
  • the spring is removed and placed in the package.
  • the spring itself enters the production line, and the spring itself rotates during the forward movement to ensure that the glue and the fluff can be evenly implanted on the spring surface during flocking.
  • the photoelectric injection switch controls the glue spraying action, and when the induction switch senses the spring, the electrostatic glue spraying device starts to operate.
  • the glue dispensing device can control the thickness of the glue by adjusting the glue flow, the glue thickness being 0.05-0.2 mm.
  • the electrostatic flocking chamber is composed of a high voltage electric field, a negative voltage is below, and a positive voltage is above, and the fluff moves under the action of the high voltage electrostatic field in the direction of the magnetic induction line, continuously performing the process of electric absorption and discharging.
  • the fluff density is controlled by the conveyor speed.
  • the spring is connected to zero potential and the spring does not need to be de-energized.
  • the fluff material is nylon PA66 or polyester PE66, the fineness is 3.3 DTEX, and the length is 0.5-1.0 mm.
  • drying temperature is 70-200 degrees and the time is 20 minutes to 1 hour.
  • step S5 further comprises collecting the fluff of the blowing spring by the fluff collecting device.
  • the method further includes the step of partially flocking the outer surface of the spring, specifically:
  • the metal surface of the spring is coated with an electrophoretic coating or a zinc-aluminum coating.
  • the spring is made of a circular steel wire, an elliptical steel wire or a goose-shaped steel wire.
  • an electrostatic dust removing step is further included.
  • the method of spraying in the step S2 can also uniformly apply the glue by means of roll coating.
  • an infrared or electrothermal heater and a temperature adjustment device are provided in the drying device.
  • the voltage of the high voltage electric field is 80,000 volts.
  • the electrophoretic coating or the zinc-aluminum coating has a thickness of 15-20 um.
  • the glue used in the glue has a viscosity of 2500-3500 Cst.
  • the invention designs the automatic flocking line to be applied to the spring surface flocking instead of the manual flocking mode, continuous production and high production efficiency. And the use of automatic glue and flocking, glue and fluff thickness is stable.
  • the invention uses the electrostatic flocking method for flocking, and can be applied to other irregular-shaped steel wires, such as elliptical steel wire and goose-shaped steel wire, in addition to the circular wire spring. A wide range of applications.
  • the invention adopts the electrostatic flocking method, and the fluff is implanted into the glue by electrostatic adsorption, and the fluff fastness is high after curing. No fluff shedding causes its performance impact and contaminates other parts and environments.
  • the invention uses imported special glue, and can be applied to the electrophoretic coating and the surface flocking of the zinc-aluminum coating.
  • FIG. 1 is a flow chart of a spring flocking process according to a preferred embodiment of the present invention.
  • Figure 2 is a schematic view of a spring portion of a portion of a spring outer surface of a preferred embodiment of the present invention
  • Figure 3 is a schematic view showing the principle of electrostatic flocking according to a preferred embodiment of the present invention.
  • Figure 4 is a schematic view of a pile on a metal surface in accordance with a preferred embodiment of the present invention.
  • Figure 5 is a schematic view showing a state in which a single tray enters the glue and flocking according to a preferred embodiment of the present invention.
  • 1-spring body 2-hook; 3-turnable tray; 4-fluff; 5--glue; 6-spring surface; 7-bracket.
  • the present invention designs an automatic electrostatic flocking process applied to the surface of the spring.
  • the entire process requires manual operation in addition to loading and unloading, and the rest are fully automated.
  • the specific process steps are as follows:
  • the spring enters the automatic production line with the conveyor chain.
  • the glue spraying process it is controlled by the photoelectric sensor switch.
  • the sensor switch senses the spring, the electrostatic spray equipment starts to run, and the glue spray process In the middle, the glue is atomized through the nozzle, and is charged with a negative charge, the spring is grounded or connected to the zero potential, and the glue is uniformly adsorbed on the surface of the spring by electrostatic adsorption.
  • the thickness of the glue is controlled by controlling the glue flow, and the thickness of the glue is 0.05-0.2 mm.
  • the viscosity of the glue used for the glue is 2500-3500 Cst.
  • Electrostatic flocking as shown in Fig. 5, the spring is sprayed into the electrostatic flocking chamber for flocking.
  • the electrostatic flocking chamber is composed of a high voltage electric field, the bottom is a negative voltage, the upper is a positive voltage, and the fluff is in a high voltage electrostatic field. Under the action, it moves along the direction of the magnetic induction line, and continuously performs the process of electric absorption and discharge. High frequency alternating, high utilization rate of fluff. By controlling the fluff density by the conveyor speed, as shown in Fig.
  • the spring node or the zero potential when the fluff 4 contacts the spring surface 6 during the movement, the fluff 4 will be perpendicular to the spring surface 6 in the vertical direction, and in the electrostatic attraction Under the action of the glue 5 is inserted inside.
  • the fluff continuously performs charging and discharging actions in the electrostatic field, so that the fluff moves in the direction of the magnetic induction line in the electrostatic field.
  • the voltage of the high voltage electric field is 80,000 volts.
  • the present invention contemplates a partially flocked spring.
  • the spring is pressed by using special tooling and the tooling and spring are placed directly in the automatic flocking device.
  • the specific implementation is as follows.
  • the spring body 1 is placed in a metal rod fixed at one end and pressed with a compression device, and then the metal pin is inserted into the other side of the metal rod to fix the spring.
  • the glue is custom-made with the imported glue supplier, and it can also be applied to the surface of the zinc-aluminum coating while being applied to the surface of the electrophoretic coating.
  • the adhesion of the glue on the surface of the zinc-aluminum coating meets the customer's requirements. After flocking, the spring has no exposed bottom after a fatigue test of 1.5 kg pressure of 400 kg.
  • the present invention designs a semi-automatic electrostatic flocking process applied to the surface of the spring to realize rapid production of multiple varieties and small batches.
  • the specific process steps are as follows:
  • the present invention is designed for the current flocking spring.
  • a flocking spring solution that can be installed in a small space, and with the same installation space, the spring shear stress can be made lower and the fatigue life is higher.
  • the flocking spring of the invention comprises a spring body metal, an electrophoretic coating or a zinc-aluminum coating, and a spring surface flocking, the spring body determines the mechanical properties and fatigue life of the spring in the system, the coating determines the corrosion resistance of the spring, and the spring surface is implanted.
  • the velvet by flocking fluff, isolates the spring body metal and the spring outer tube from direct friction, eliminating the friction noise generated by the friction between the spring body and the outer tube.
  • the thickness of the electrophoretic coating or the zinc-aluminum coating is 15-20 um.
  • the flocking spring of the invention breaks the traditional idea of an electric tailgate spring made of a circular steel wire, and adopts an elliptical steel wire, so that when the spring is fully pressed, the pressure and height are greatly reduced, so that the original can not be installed into the system.
  • the spring can be installed in the existing space, and the flocking and noise reduction can be realized without changing the structure of the system.
  • the flocking spring of the invention breaks the traditional idea of an electric tailgate spring made of a circular steel wire, and adopts an elliptical steel wire, thereby increasing the diameter of the spring wire and reducing the spring shear stress under the same installation space. Thereby increasing the fatigue life of the spring.
  • the spring is designed with a conventional circular wire, and then the diameter of the circular wire is converted into an elliptical wire of the same cross-sectional area by the equivalent conversion of the cross-sectional area, thereby obtaining a spring tight height ( This state corresponds to a spring solution with a greatly reduced gap between the wires. Therefore, the electric tailgate system, which was originally unable to use flocking to reduce noise due to the small longitudinal space, solved the noise without changing any parameters. problem.
  • the spring can also be made of goose-shaped steel wire.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Spray Control Apparatus (AREA)
  • Springs (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Seats For Vehicles (AREA)

Abstract

一种在弹簧表面植绒的方法，包括以下步骤：S1上料，使用挂钩（2）将弹簧固定在传送链条上方，弹簧随传送链条进入生产线；S2静电喷胶，弹簧随传送链条进入自动生产线；S3静电植绒，弹簧喷胶后进入静电植绒室进行植绒；S4固化，植绒后的弹簧进入烘干装置进行烘干；S5去浮毛，弹簧通过毛刷，并使用压缩空气吹弹簧表面，去除弹簧表面浮毛；S6下料，将植绒后弹簧取下，放入包装。该方法适用于圆形、椭圆形、鹅卵形等钢丝弹簧，适用于于电泳涂层、锌铝涂层等涂层表面。该方法使用静电植绒，绒毛通过静电吸附植入胶水，固化后绒毛牢度高。

Description

一种在弹簧表面植绒的方法
技术领域
本发明涉及金属表面植绒领域，尤其涉及一种在弹簧表面植绒的方法。
背景技术
随着人们生活质量的挺高，人们越来越追求安静舒适的环境。弹簧在运动的时候，由于金属表面与弹簧外侧或内侧接触，产生高分贝噪音，于是市场上出现了将弹簧本体表面植绒，以解决减摩擦、降噪音的效果。
目前国内植绒多应用于非金属件，以装饰性为主，尚未有全自动弹簧植绒线的设计和开发能力，仅有少数工厂使用手动植绒，无法连续生产，生产效率低。且绒毛厚度不均匀，无法保证要求，稳定性和可靠性差，使实际使用过程中存在较大不确定性。
使用传统植绒方式应用于一些异形状钢丝表面时，如椭圆形钢丝，鹅卵形钢丝，胶水及绒毛厚度无法保证厚度要求。
现有手工植绒绒毛为自由散落于涂覆胶水的待植绒件表面，绒毛无法直接***胶水，绒毛的牢度不稳定，在使用摩擦的过程中，在使用的过程中会有绒毛脱落，可靠性降低，且掉落绒毛会污染其他部件。
传统的植绒弹簧都是采用喷胶、静电植绒的方式完成，完成后的弹簧内外侧都被植绒，由于弹簧本体内侧植入的绒毛不仅起不到减摩擦的作用，还增加了弹簧的内外径，对于很多设计空间比较狭小的***，弹簧内外径的增加让弹簧的设计及装配很有困难。
为了能让弹簧有更好的防锈能力，需在金属表面进行防锈处理，目前市面上应用于电动尾门的植绒弹簧都是在底面防锈涂层为电泳漆的表面进行植绒，但是电泳漆产生的废水会带来环境问题，且电泳涂层属于封闭式涂层，一旦被外界划伤，将会很快生锈且逐渐扩散。固在弹簧表面选用锌铝涂层作为涂层，但是使用普通胶水应用于锌铝涂层表面时，胶水无法牢固的吸附于涂层表面，可以轻易刮落。
因此，本领域的技术人员致力于开发一种在弹簧表面植绒的方法，使用自动喷胶和植绒，胶水及绒毛厚度稳定；设计使用静电植绒方式进行植绒，异于传统方式喷涂，满足在异形钢丝表面均匀的植绒。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是设计全自动植绒线应用于弹簧表面植绒替代手工植绒方式，连续生产，生产效率高。且使用自动喷胶和植绒，胶水及绒毛厚度稳定；设计使用静电植绒方式进行植绒，异于传统方式喷涂，满足在异形钢丝表面均匀的植绒；使用静电植绒方式，胶水固化后绒毛牢度较高，在40000次绒毛牢度测试实验后不露出表面基材；使用工装把弹簧全部压并后直接把弹簧连带工装一起放入植绒设备，从而实现仅在弹簧外表面植绒，并圈及内圈位置没有植绒；选用国外进口胶水，提高在锌铝涂层表面的附着力。可以同时使用于锌铝涂层和电泳涂层表面。
为实现上述目的，本发明提供了一种在弹簧表面植绒的方法，至少包括以下步骤：
使用挂钩将弹簧固定在传送链条上方，弹簧随传送链条进入生产线；
喷胶过程中胶水通过喷嘴雾化，并且带上负电荷，弹簧接地或者接零电位，通过静电吸附使得胶水均匀的附着在弹簧表面；
弹簧喷胶后进入静电植绒室进行植绒，弹簧节点接零电位，绒毛在运动过程中接触到弹簧表面时，绒毛将垂直方向竖直于弹簧表面，并且在静电引力的作用下，***胶水内部；
植绒后的弹簧进入烘干装置进行烘干；
烘干后的弹簧通过毛刷，使用压缩空气吹弹簧表面，去除弹簧表面浮毛；
将植绒并去毛后弹簧取下放入包装。
进一步地，弹簧在进入生产线，往前运动的过程中，弹簧本身会自转，保证植绒时胶水和绒毛可以均匀的植于弹簧表面。
进一步地，由光电感应开关控制喷胶动作，当感应开关感应到弹簧时，静电喷胶设备开始运行。
进一步地，所述喷胶设备可通过调节胶水流量控制胶水厚度，所述胶水厚度在0.05-0.2mm。
进一步地，所述静电植绒室由高压电场组成，下方为负电压，上方为正电压，绒毛在高压静电场的作用下，沿磁感线方向运动，不断的进行吸电和放电过程。高频交变，绒毛吸附利用率高。通过传送带速度，控制绒毛密度。弹簧接零电位，并且最后弹簧不需要去电。
进一步地，所述绒毛材质为尼龙PA66或涤纶PE66，细度为3.3DTEX，长度为0.5-1.0mm。
进一步地，所述烘干温度为70-200度，时间为20分钟至1小时。
进一步地，所述步骤S5中还包括通过绒毛收集装置收集吹下弹簧的绒毛。
进一步地，所述方法还包括对弹簧外表面进行部分植绒的步骤，具体为：
（1）将弹簧置于一端固定的金属杆中，并使用压缩设备压并，然后使用金属插销***金属杆另一侧用以固定弹簧；
（2）将压并的弹簧连金属杆连接于传送设备进行表面植绒；
（3）将弹簧取下后重新放入压缩设备压缩，然后取出插销后再松开弹簧。
进一步地，所述弹簧的金属表面涂有电泳涂层或锌铝涂层。
进一步地，所述弹簧采用圆形钢丝、椭圆形钢丝或鹅卵形钢丝制成。
进一步地，在所述步骤S2的喷胶之前，还包括静电除尘步骤。
进一步地，所述步骤S2中的喷胶方式还可以通过滚涂的方式均匀涂抹胶水。
进一步地，所述烘干装置中设有红外或电热加热器和温度调节装置。
进一步地，所述高压电场的电压为80000伏。
进一步地，所述电泳涂层或锌铝涂层的厚度为15-20um。
进一步地，所述喷胶使用的胶水粘度为2500-3500Cst。
本发明设计全自动植绒线应用于弹簧表面植绒替代手工植绒方式，连续生产，生产效率高。且使用自动喷胶和植绒，胶水及绒毛厚度稳定。本发明使用静电植绒方式进行植绒，除了圆形钢丝弹簧外同样可以应用于其他异形钢丝，如椭圆钢丝，鹅卵形钢丝。应用范围较广。本发明使用静电植绒方式，绒毛通过静电吸附植入胶水，固化后绒毛牢度高。无绒毛脱落造成其性能影响，及污染其他部件和环境。本发明使用进口特制胶水，可以同时应用于电泳涂层及锌铝涂层表面植绒。
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
附图说明
图1是本发明的一个较佳实施例的弹簧植绒工艺流程图；
图2是本发明的一个较佳实施例的弹簧外表面部分植绒的弹簧示意图；
图3是本发明的一个较佳实施例的静电植绒原理示意图；
图4是本发明的一个较佳实施例的绒毛在金属表面的示意图；
图5是本发明的一个较佳实施例的单个料盘进入喷胶和植绒的状态示意图。
其中，1-弹簧本体；2-挂钩；3-可翻转料盘；4-绒毛；5-胶水；6-弹簧表面；7-支架。
具体实施方式
以下参考说明书附图介绍本发明的多个优选实施例，使其技术内容更加清楚和便于理解。本发明可以通过许多不同形式的实施例来得以体现，本发明的保护范围并非仅限于文中提到的实施例。
在附图中，结构相同的部件以相同数字标号表示，各处结构或功能相似的组件以相似数字标号表示。附图所示的每一组件的尺寸和厚度是任意示出的，本发明并没有限定每个组件的尺寸和厚度。为了使图示更清晰，附图中有些地方适当夸大了部件的厚度。
实施例一
如图1所示，本发明设计一种自动静电植绒工艺应用于弹簧表面，整个过程除了上料和下料需要手动操作，其余均为全自动进行，具体的工艺步骤如下：
S1：上料，使用挂钩将弹簧固定在传送链条上方，弹簧随传送链条进入生产线，弹簧在往前运动的过程中，弹簧本身也会自转，保证植绒时胶水和绒毛可以均匀的植于弹簧表面。
S2：静电喷胶，如图5所示，弹簧随传送链条进入自动生产线，当进入喷胶工序，由光电感应开关控制，当感应开关感应到弹簧时，静电喷胶设备开始运行，喷胶过程中，胶水通过喷嘴雾化，并且带上负电荷，弹簧接地或者接零电位，通过静电吸附使得胶水均匀的吸附在弹簧表面。通过控制胶水流量控制胶水厚度，胶水厚度在0.05-0.2mm。喷胶使用的胶水粘度为2500-3500Cst。
S3：静电植绒，如图5所示，弹簧喷胶后进入静电植绒室进行植绒，静电植绒室由高压电场组成，底下为负电压，上方为正电压，绒毛在高压静电场的作用下，沿磁感线方向运动，不断的进行吸电和放电过程。高频交变，绒毛吸附利用率高。通过传送带速度，控制绒毛密度，如图4所示，弹簧节点或者接零电位，绒毛4在运动过程中接触到弹簧表面6时，绒毛4将垂直方向竖直于弹簧表面6，并且在静电引力的作用下，***胶水5内部。如图3所示，绒毛在静电场内不断的做带电和放电动作，从而使得绒毛在静电场内按照磁感线方向不停运动。绒毛选用3.3DTEX 0.5-1.0mm。高压电场的电压为80000伏。
S4：固化，植绒后的弹簧进入烘干线进行烘干。烘干温度为70-200度，时间为20分钟至1小时。烘干装置中设有红外或电热加热器和温度调节装置。
S5：去浮毛，弹簧通过毛刷，并使用压缩空气吹弹簧表面，去除弹簧表面浮毛。通过绒毛收集装置收集吹下弹簧，
S6：下料，将植绒后弹簧取下，放入包装。
实施例二
如图2所示，本发明设计一种部分植绒弹簧。通过使用特殊工装将弹簧压并后直接将工装和弹簧一起放置于自动植绒设备内。具体实施方案如下，
（1）将弹簧本体1置于一端固定的金属杆中使用压缩设备压并，然后使用金属插销***金属杆另一侧用以固定弹簧。
（2）将压并的弹簧连金属杆连接于传送设备进行表面植绒。其余工艺步骤同上。
（3）将弹簧取下后重新放入压缩设备压缩，然后取出插销后再松开弹簧。
实施例三
为了使得植绒后弹簧防锈能力更强，与进口胶水供应商定制胶水，在适用于现在电泳涂层表面的同时，也可用于锌铝涂层表面。使得胶水在锌铝涂层表面的附着力满足客户要求。植绒后弹簧在1.5kg压力40000次耐磨试验后无露底。
实施例四
如图5所示，本发明设计一种半自动静电植绒工艺应用于弹簧表面，实现了多品种小批量的快速生产，具体的工艺步骤如下：
S1：上料，使用挂钩3将弹簧本体1固定在可翻转料盘2上，料盘可以180度翻转，料盘上设置可链接挂钩座，使得弹簧容易上挂。
S2：静电喷胶，将可翻转料盘放置在支架7上，人工手持喷枪，将胶水均匀喷洒在弹簧表面6，喷胶过程中，胶水5通过喷嘴雾化，并且带上负电荷，弹簧本体1接地或者接零电位，通过静电吸附使得胶水均匀的吸附在弹簧表面6。通过控制胶水5流量控制胶水厚度，胶水厚度在0.05-0.2mm。喷胶使用的胶水粘度为2500-3500Cst。
S3：翻转料盘180度，按照S2的方法在弹簧另一个半面均匀喷上胶水5。
S4：静电植绒，弹簧喷胶后，将整个料架放进植绒箱进行植绒，容貌通过静电吸附的方式被植入胶水5。
S5：固化，将植绒后的弹簧连同可翻转料盘3一起放入烘干炉进行烘干。烘干温度为70-200度，时间为20分钟至1小时。烘干装置中设有红外或电热加热器和温度调节装置。
S6：去浮毛，弹簧通过毛刷，并使用压缩空气吹弹簧表面，去除弹簧表面浮毛。通过绒毛收集装置收集吹下弹簧，
S7：下料，将植绒后弹簧取下，放入包装。
为改善传统圆形钢丝制作的电动尾门弹簧，需要更大的安装空间，导致很多空间有限的电动尾门***不能使用植绒弹簧来达到降噪的效果，针对当前植绒弹簧，本发明设计了一种可在小空间内安装的植绒弹簧方案,且在相同安装空间的情况下，弹簧剪切应力可以做的更低，疲劳寿命更高。 本发明的主要技术方案如下：
(1) 本发明植绒弹簧包括弹簧本体金属、电泳涂层或锌铝涂层、弹簧表面植绒，弹簧本体决定弹簧在***内的力学性能及疲劳寿命，涂层决定弹簧的防腐蚀能力，弹簧表面植绒，通过植绒绒毛，隔绝了弹簧本体金属和弹簧外管直接摩擦，消除了弹簧本体与外管摩擦而产生的摩擦噪音。电泳涂层或锌铝涂层的厚度为15-20um。
(2) 本发明植绒弹簧，打破了传统的用圆形钢丝制作的电动尾门弹簧的思想，采用椭圆形钢丝，从而当弹簧完全压并时，压并高度大大减小，使得本来装不进***的弹簧可以在现有空间安装了，在不改变***结构的前提下，实现了植绒降噪。
(3) 本发明植绒弹簧，打破了传统的用圆形钢丝制作的电动尾门弹簧的思想，采用椭圆形钢丝，从而在相同的安装空间下，可以增大弹簧的钢丝直径，降低弹簧剪切应力，从而提高弹簧的疲劳寿命。
(4) 本发明的方案如下：
依据客户定义的***边界条件，使用常规圆形钢丝设计弹簧，然后将依据圆形钢丝的直径通过截面积的等效转换，转换成相同截面积的椭圆形钢丝，从而得到一个弹簧并紧高度(此状态对应钢丝之间间隙为零)大大减小的弹簧方案，于是原本由于纵向空间小而不能采用植绒来降低噪音的电动尾门***，在不改变任何参数的情况下，解决了噪音的问题。弹簧也可采用鹅卵形钢丝制成。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (17)

  1. 一种在弹簧表面植绒的方法，其特征在于，至少包括以下步骤：
    使用挂钩将弹簧固定在传送链条上方，弹簧随传送链条进入生产线；
    喷胶过程中胶水通过喷嘴雾化，并且带上负电荷，弹簧接地或者接零电位，通过静电吸附使得胶水均匀的附着在弹簧表面；
    弹簧喷胶后进入静电植绒室进行植绒，弹簧节点接零电位，绒毛在运动过程中接触到弹簧表面时，绒毛将垂直方向竖直于弹簧表面，并且在静电引力的作用下，***胶水内部；
    植绒后的弹簧进入烘干装置进行烘干；
    烘干后的弹簧通过毛刷，使用压缩空气吹弹簧表面，去除弹簧表面浮毛；
    将植绒并去毛后弹簧取下放入包装。
  2. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述弹簧在进入生产线，往前运动的过程中，弹簧本身会自转，保证植绒时胶水和绒毛可以均匀的植于弹簧表面。
  3. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，由光电感应开关控制喷胶动作，当感应开关感应到弹簧时，静电喷胶设备开始运行。
  4. 如权利要求3所述的在弹簧表面植绒的方法，其特征在于，所述喷胶设备可通过调节胶水流量控制胶水厚度，所述胶水厚度在0.05-0.2mm。
  5. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述静电植绒室由高压电场组成，下方为负电压，上方为正电压，绒毛在高压静电场的作用下，沿磁感线方向运动，不断的进行吸电和放电过程。
  6. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述绒毛材质为尼龙PA66或涤纶PE66，细度为3.3DTEX，长度为0.5-1.0mm。
  7. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述烘干温度为70-200度，时间为20分钟至1小时。
  8. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述步骤S5中还包括通过绒毛收集装置收集吹下弹簧的绒毛。
  9. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述方法还包括仅对弹簧外表面进行植绒的步骤，具体为：
    （1）将弹簧置于一端固定的金属杆中，并使用压缩设备压并，然后使用金属插销***金属杆另一侧用以固定弹簧；
    （2）将压并的弹簧连金属杆连接于传送设备进行表面植绒；
    （3）将弹簧取下后重新放入压缩设备压缩，然后取出插销后再松开弹簧。
  10. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述弹簧的金属表面涂有电泳涂层或锌铝涂层。
  11. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述弹簧采用圆形钢丝、椭圆形钢丝或鹅卵形钢丝制成。
  12. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，在所述步骤S2的喷胶之前，还包括静电除尘步骤。
  13. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述步骤S2中的喷胶方式还可以通过滚涂的方式均匀涂抹胶水。
  14. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述烘干装置中设有红外或电热加热器和温度调节装置。
  15. 如权利要求5所述的在弹簧表面植绒的方法，其特征在于，所述高压电场的电压为80000伏。
  16. 如权利要求10所述的在弹簧表面植绒的方法，其特征在于，所述电泳涂层或锌铝涂层的厚度为15-20um。
  17. 如权利要求1所述的在弹簧表面植绒的方法，其特征在于，所述喷胶使用的胶水粘度为2500-3500Cst。
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