JPS55158928A - Method of sealing bottom of synthetic resin bag and device thereof - Google Patents

Method of sealing bottom of synthetic resin bag and device thereof

Info

Publication number
JPS55158928A
JPS55158928A JP6663479A JP6663479A JPS55158928A JP S55158928 A JPS55158928 A JP S55158928A JP 6663479 A JP6663479 A JP 6663479A JP 6663479 A JP6663479 A JP 6663479A JP S55158928 A JPS55158928 A JP S55158928A
Authority
JP
Japan
Prior art keywords
tube
movement
running
synthetic resin
pressing force
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
JP6663479A
Other languages
Japanese (ja)
Other versions
JPS5823211B2 (en
Inventor
Saburo Akane
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP54066634A priority Critical patent/JPS5823211B2/en
Publication of JPS55158928A publication Critical patent/JPS55158928A/en
Publication of JPS5823211B2 publication Critical patent/JPS5823211B2/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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To enable an efficient and firm sealing of a bottom, by a method wherein a heat and a pressing force are applied to a portion to be sealed during the movement of the tube at a speed in synchronism with the movement of the tube for a given period of time while a long-sized synthetic resin tube is running in one direction, and the heat and the pressing force are removed simultaneously and instantly.
CONSTITUTION: A synthetic resin made tube 1, passing between the nip formed at a start end of a tube running passage 6, is fed out of a terminal end of the tube running passage 6 after being conveyed thereto in such a state as brings the tube into press contact with an outer circumference surface of a drum 4 through the driving of a belt 5. During said conveyance, a bag bottom is heated and molten by means of a plurality of heaters 7 mounted on an outer circumference surface of the drum 4. At a time when the tube is fed out of the terminal end of the running passage 6, a molten portion is contracted to form an expanded bottom 2. After a heat and a pressing force are applied for a given period of time while they are displacing at a speed in synchronism with the movement of the tube and applied with the said movement, they are all removed instantly for sealing. This eliminates the need for the tube to suspend its running and permits the increase in a processing efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP54066634A 1979-05-29 1979-05-29 Bottom sealing device for synthetic resin bags Expired JPS5823211B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54066634A JPS5823211B2 (en) 1979-05-29 1979-05-29 Bottom sealing device for synthetic resin bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54066634A JPS5823211B2 (en) 1979-05-29 1979-05-29 Bottom sealing device for synthetic resin bags

Publications (2)

Publication Number Publication Date
JPS55158928A true JPS55158928A (en) 1980-12-10
JPS5823211B2 JPS5823211B2 (en) 1983-05-13

Family

ID=13321511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54066634A Expired JPS5823211B2 (en) 1979-05-29 1979-05-29 Bottom sealing device for synthetic resin bags

Country Status (1)

Country Link
JP (1) JPS5823211B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59225916A (en) * 1983-06-08 1984-12-19 Asahi Chem Ind Co Ltd Band sealing of polyethylene film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS43102Y1 (en) * 1967-03-03 1968-01-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS43102Y1 (en) * 1967-03-03 1968-01-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59225916A (en) * 1983-06-08 1984-12-19 Asahi Chem Ind Co Ltd Band sealing of polyethylene film
JPS6252698B2 (en) * 1983-06-08 1987-11-06 Asahi Chemical Ind

Also Published As

Publication number Publication date
JPS5823211B2 (en) 1983-05-13

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