CN102950760A - 框体成型方法 - Google Patents

框体成型方法 Download PDF

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Publication number
CN102950760A
CN102950760A CN2011102507727A CN201110250772A CN102950760A CN 102950760 A CN102950760 A CN 102950760A CN 2011102507727 A CN2011102507727 A CN 2011102507727A CN 201110250772 A CN201110250772 A CN 201110250772A CN 102950760 A CN102950760 A CN 102950760A
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framework
forming method
preform
mandrel
banding substrate
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熊毅
林志华
彭金彪
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Shenzhen Yuzhan Precision Technology Co ltd
Hon Hai Precision Industry Co Ltd
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Shenzhen Yuzhan Precision Technology Co ltd
Hon Hai Precision Industry Co Ltd
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Priority to CN2011102507727A priority Critical patent/CN102950760A/zh
Priority to TW100131408A priority patent/TW201309456A/zh
Priority to US13/303,396 priority patent/US20130048205A1/en
Publication of CN102950760A publication Critical patent/CN102950760A/zh
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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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/462—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/224—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length having a profiled section, e.g. tubes, rods
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • B29C69/002—Winding
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D12/00—Producing frames
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

一种框体成型方法，其包括：（1）提供一个由热固性材料制成的带状基材及一个芯轴，将该带状基材绕设于该芯轴上，以形成预型体；（2）提供一种模具，其具有与所需成型的框体形状相匹配的模仁，将预型体套设于模仁上；（3）将模具放入热压设备，对预型体进行热压成型以形成框体；（4）从模具取出所成型的框体。该成型方法只需将带状基材绕芯轴形成预型体，对预型体进行热压后即可成型所需框体，不会浪费原材料，且成型步骤中不会导致对框体性能的损害，得到的框体性能好。

Description

框体成型方法
技术领域
本发明涉及一种框体成型方法，尤其涉及一种热固性材料的框体成型方法。
背景技术
在成型树脂基复合材料、热固性塑料等热固性材料的框体时，由于其形状的特殊性，一般采用的成型方法为：先将原材料裁切成预定形状的薄片，将薄片重叠后放入冲压设备中进行冲裁得到预型框体，将预型框体放入模具中进行热压等处理。然而，利用该方法得到的框体在冲压过程中，会使得框体的材料特性发生改变，例如树脂基复合材料中的长纤维经冲压之后变成短纤维，影响框体的强度。同时，该成型方法中浪费大量的原材料，耗用较多人力，使得生产率较低，成本较高。
发明内容
鉴于以上内容，有必要提供一种能使成型的框体强度较好且节约材料、成型效率较高的框体成型方法。
一种框体成型方法，其包括：（1）提供一个由热固性材料制成的带状基材及一个芯轴，将该带状基材绕设于该芯轴上，以形成预型体；（2）提供一种模具，其具有与所需成型的框体形状相匹配的模仁，将预型体套设于模仁上；（3）将模具放入热压设备，对预型体进行热压成型以形成框体；（4）从模具取出所成型的框体。
一种框体成型方法，其包括：（1）提供一个热固性材料制成的带状基材及一个芯轴，将该带状基材绕设于该芯轴上，以形成素材体；（2）将该素材体切分为多个预型体；（3）提供一种模具，其具有与所需成型的框体形状相匹配的模仁，将预型体套设于模仁上；（4）将模具放入热压设备，对预型体进行热压成型；（5）从模具取出成型的预型框体，且预型框体尺寸与所需成型的框体尺寸接近；（6）加工预型框体，得到所需成型的框体。
上述框体成型方法中，仅需将带状基材绕芯轴缠绕形成预型体，将预型体放入模具中的模腔中，进行热压后进行适当加工即可成型所需框体，步骤中不会导致对框体性能的损害，得到的框体强度较好，且这种成型方法不会浪费材料，成型效率较高。
附图说明
图1是本发明实施方式中框体成型方法所需成型的框体示意图。
图2是本发明实施方式的框体成型方法的流程图。
图3是图2所示框体成型方法中将带状基材缠绕至芯轴的示意图。
图4是图2所示框体成型方法中形成的素材体的立体示意图。
图5是图2所示框体成型方法中形成的预型体的立体示意图。
图6是图2所示框体成型方法的模具示意图。
主要元件符号说明
框体 100
带状基材 10
芯轴 20
素材体 30
预型体 50
模具 70
模仁 71
预型框体 90
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
请参阅图1，本发明的框体成型方法可以用于成型树脂基复合材料、热固性塑料等热固性材料的框体，在本实施方式中的框体100为矩形框状，其材料为玻璃纤维、碳纤维、克拉纤维等树脂基复合材料，以下以成型框体100为例对本发明的框体成型方法进行详细说明。
请参阅图2、图3及图4，在步骤S101中，提供一种用于制造框体100的带状基材10及一个芯轴20，将带状基材缠绕于芯轴20上以形成素材体30。在本实施方式中，带状基材10为预浸织物，芯轴20均为圆筒状，使用时，将芯轴20固定在复卷机（图未示）上，通过复卷机将带状基材10缠绕至芯轴20，根据带状基材的材质内缩率和厚度以及框体100的尺寸计算出带状基材10绕芯轴20缠绕的卷数n以及缠绕后所需形成的素材体的内径r和外径R，以一定的拉力f将带状基材10绕芯轴20形成一定厚度及宽度的素材体30。
请一并参阅图5，在步骤S102中，将素材体30分切成多个预型体50。在本实施方式中，先将素材体30固定在分切机（图未示）上，然后利用分切机垂直素材体30轴向分切，按照所需框体的尺寸参数分切成多个高度为h的预型体50。
请一并参阅图6，在步骤S103中，提供一个模具70，具有与所需成型的框体100形状相匹配的模仁71，将预型体50套设于模仁71上。可以理解，为方便脱模，还可以在模仁71上涂覆脱模剂。
在步骤104中，模具70经过合模后，将预型体50送入热压设备中（图未示），并根据所使用的带状基材10的材质，在预定温度、压力和时间条件下，使预型体50成型，形成预型框体90。
在步骤S105中，脱模后，取出预型框体90。
请再次参阅图1，在步骤S106中，对预型框体90进行机械加工，得到框体100。
可以理解，框体100可以为其他形状的框体，如三角形等，此时，模具70中的模仁71的形状相应改变。
可以理解，预型框体90满足框体100的尺寸要求时，可以省略步骤S106。
可以理解，模具70可为多层模具，可将多个预型体50放入多层模具中，一次性对多个预型体50进行热压成型。
可以理解，如果将带状基材10绕芯轴20复卷形成的素材体30的高度为h时，可省略步骤S102，而直接在步骤S101中形成预型体50。
本实施方式的成型方法，由于利用带状基材10复卷形成空心圆筒状的素材体30，继而利用分切方法对素材体30进行分切，分切成多个预型体50，将预型体50套设于模仁71上放入热压设备中进行热压，成型形成预型框体90，然后进行适当的机械加工得到满足尺寸和精度要求的框体100。在整个过程中，都不会影响框体100的特性，素材体30在分切后可以得到多个预型体50，每个预型体50在热压和机械加工后能得到框体100，效率较高。利用带状基材10绕芯轴20缠绕等一系列操作中，不会浪费材料，节约原料。
另外，本领域技术人员还可在本发明精神内做其它变化，当然，这些依据本发明精神所做的变化，都应包含在本发明所要求保护的范围内。

Claims (10)

1.一种框体成型方法，其包括：
（1）提供一个由热固性材料制成的带状基材及一个芯轴，将所述带状基材绕设于所述芯轴上，以形成预型体；
（2）提供一种模具，其具有与所需成型的框体形状相匹配的模仁，将预型体套设于模仁上；
（3）将模具放入热压设备，对预型体进行热压成型以形成框体；
（4）从模具取出所成型的框体。
2.如权利要求1所述的框体成型方法，其特征在于：所述热固性材料为树脂基复合材料。
3.如权利要求1所述的框体成型方法，其特征在于：所述芯轴为圆筒状，所述带状基材缠绕芯轴后形成空心圆筒状的预型体。
4.如权利要求1所述的框体成型方法，其特征在于：根据所述带状基材的材质内缩率和厚度以及所需成型的框体的尺寸，确定所述带状基材绕所述芯轴缠绕的圈数，形成一定内径和外径的空心圆筒状的预型体。
5.如权利要求1所述的框体成型方法，其特征在于：所述模具为多层模具，将多个所述预型体放入所述多层模具中同时热压成型。
6.一种框体成型方法，其包括：
（1）提供一个热固性材料制成的带状基材及一个芯轴，将所述带状基材绕设于所述芯轴上，以形成素材体；
（2）将所述素材体切分为多个预型体；
（3）提供一种模具，其具有与所需成型的框体形状相匹配的模仁，将预型体套设于模仁上；
（4）将模具放入热压设备，对预型体进行热压成型；
（5）从模具取出成型的预型框体，且预型框体尺寸与所需成型的框体尺寸接近；
（6）加工预型框体，得到所需成型的框体。
7.如权利要求6所述的框体成型方法，其特征在于：所述热固性材料为树脂基复合材料。
8.如权利要求6所述的框体成型方法，其特征在于：所述带状基材和所述芯轴为圆筒状，所述带状基材缠绕芯轴后形成空心圆筒状的素材体。
9.如权利要求8所述的框体成型方法，其特征在于：根据所述带状基材的材质内缩率和厚度以及所需成型的框体的尺寸，确定所述带状基材绕所述芯轴缠绕的圈数，形成一定内径和外径的空心圆筒状的素材体。
10.如权利要求6所述的框体成型方法，其特征在于：所述模具为多层模具，将多个所述预型体放入所述多层模具中同时热压成型。
CN2011102507727A 2011-08-29 2011-08-29 框体成型方法 Pending CN102950760A (zh)

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TW100131408A TW201309456A (zh) 2011-08-29 2011-09-01 框體成型方法
US13/303,396 US20130048205A1 (en) 2011-08-29 2011-11-23 Method for forming a frame

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CN107415260A (zh) * 2017-08-02 2017-12-01 深圳市众创立科技有限公司 一种镜腿加热装置

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KR102586935B1 (ko) * 2018-11-28 2023-10-11 현대자동차주식회사 방수펠트 덕트의 제조 방법 및 이에 의해 제조된 방수펠트 덕트

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GB1232203A (zh) * 1967-11-06 1971-05-19
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CN107415260A (zh) * 2017-08-02 2017-12-01 深圳市众创立科技有限公司 一种镜腿加热装置
CN107415260B (zh) * 2017-08-02 2023-11-07 深圳市众创立科技有限公司 一种镜腿加热装置

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