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JPS57103832A - Molding method of plastic planar molded object with reinforcing material - Google Patents

Molding method of plastic planar molded object with reinforcing material

Info

Publication number
JPS57103832A
JPS57103832A JP16361981A JP16361981A JPS57103832A JP S57103832 A JPS57103832 A JP S57103832A JP 16361981 A JP16361981 A JP 16361981A JP 16361981 A JP16361981 A JP 16361981A JP S57103832 A JPS57103832 A JP S57103832A
Authority
JP
Japan
Prior art keywords
reinforcing body
cavity
pin
fixed
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16361981A
Other languages
Japanese (ja)
Other versions
JPS5856507B2 (en
Inventor
Yasumi Motokawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daifuku Co Ltd
Daifuku Machinery Works Ltd
Original Assignee
Daifuku Co Ltd
Daifuku Machinery Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daifuku Co Ltd, Daifuku Machinery Works Ltd filed Critical Daifuku Co Ltd
Priority to JP16361981A priority Critical patent/JPS5856507B2/en
Publication of JPS57103832A publication Critical patent/JPS57103832A/en
Publication of JPS5856507B2 publication Critical patent/JPS5856507B2/en
Expired legal-status Critical Current

Links

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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection

Landscapes

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

Abstract

PURPOSE:To suppress the generation of vibration at the planar reinforcing body kept in suspension and prevent quality degradation of the molded product, by shaping concavity at the tip of a pin which is opposite against the injection direction and is fixed at the contact position till just before finishing the molding. CONSTITUTION:A planar reinforcing body (a) is charged in the cavity 2a of a fixed mold 2, the mold mating is done by moving a movable mold 4 and the reinforcing body (a) is held between pins P2, P3 and fixed. When molten resin is injected into the closed cavity 2a, 4a from the cavity 2a side, attains to the surface of the reinforcing body (a) and begins to push it, the pin P2 is withdrawn from the cavity. In this state the reinforcing body (a) is kept to hold the predetermined position by frictional force of injection pressure and resisting back pressure due to the pin P3 and fitting to its concavity (d) in spite of variation of fluid pressure and the weight of the reinforcing body.
JP16361981A 1981-10-13 1981-10-13 Molding method for reinforced plastic sheet shaped body Expired JPS5856507B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16361981A JPS5856507B2 (en) 1981-10-13 1981-10-13 Molding method for reinforced plastic sheet shaped body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16361981A JPS5856507B2 (en) 1981-10-13 1981-10-13 Molding method for reinforced plastic sheet shaped body

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP4886978A Division JPS5856342B2 (en) 1978-04-24 1978-04-24 Molding method for reinforced plastic sheet shaped body

Publications (2)

Publication Number Publication Date
JPS57103832A true JPS57103832A (en) 1982-06-28
JPS5856507B2 JPS5856507B2 (en) 1983-12-15

Family

ID=15777365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16361981A Expired JPS5856507B2 (en) 1981-10-13 1981-10-13 Molding method for reinforced plastic sheet shaped body

Country Status (1)

Country Link
JP (1) JPS5856507B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911086A1 (en) * 2007-01-08 2008-07-11 Allibert Buckhorn France Soc P Rectangular tray molding method for heavy load supporting pallet, involves injecting plastic material for molding reinforcements, and closing reinforcing ends by compressible plastic closure units in direction of length of reinforcements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911086A1 (en) * 2007-01-08 2008-07-11 Allibert Buckhorn France Soc P Rectangular tray molding method for heavy load supporting pallet, involves injecting plastic material for molding reinforcements, and closing reinforcing ends by compressible plastic closure units in direction of length of reinforcements

Also Published As

Publication number Publication date
JPS5856507B2 (en) 1983-12-15

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