JPH08230837A - Fusing and sealing bar of film in packaging device winding body - Google Patents

Fusing and sealing bar of film in packaging device winding body

Info

Publication number
JPH08230837A
JPH08230837A JP5976195A JP5976195A JPH08230837A JP H08230837 A JPH08230837 A JP H08230837A JP 5976195 A JP5976195 A JP 5976195A JP 5976195 A JP5976195 A JP 5976195A JP H08230837 A JPH08230837 A JP H08230837A
Authority
JP
Japan
Prior art keywords
film
seal
seal bar
cake
sealing
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
JP5976195A
Other languages
Japanese (ja)
Other versions
JP2916670B2 (en
Inventor
Yasusato Mizuguchi
靖悟 水口
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.)
Fuji Machinery Co Ltd
Original Assignee
Fuji Machinery Co 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 Fuji Machinery Co Ltd filed Critical Fuji Machinery Co Ltd
Priority to JP5976195A priority Critical patent/JP2916670B2/en
Publication of JPH08230837A publication Critical patent/JPH08230837A/en
Application granted granted Critical
Publication of JP2916670B2 publication Critical patent/JP2916670B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B29C66/82263—Follower pin or roller cooperating with a groove
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)

Abstract

PURPOSE: To favorably cut off a film and at the same time securely seal an article at the supply side thereof. CONSTITUTION: The seal face 92 of a receive side seal bar 26 is made flat in the longitudinal full length. The seal part 96 of the seal side bar 25 is provided with a sharp blade front 97. The cake supply side face of the seal part 96 is constituted of the first slope 98 slanting at a constant angle from the blade front 97 to a point α separated from the front 97 by a little distance and the second slope 99 slanting at a constant angle from the point αto the end. The sending-out side face of the cake of the seal part 96 is formed of the third slope 100 slanting at a constant angle from the blade front 97 to the end. The angle θ1 made by the first slope 98 and the seal face 92 at the sealed condition of both seal bars 25, 26 is set smaller than the angle θ3 made by the third slope 100 and the seal face 92 and the angle θ2 made by the second slope 99 and the seal face 92 is set smaller than the angle θ3 .

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、物品にフィルムを巻
付けシールして胴巻きする胴巻き包装装置におけるフィ
ルムの溶断シールバーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fusing and sealing bar for a film in a body-wrapping device in which a film is wrapped around an article and sealed to form a body.

【０００２】[0002]

【従来技術】平面的に三角形状を呈するショートケーキ
や、その他四角形のブロック状のケーキの品質劣化を防
止するために、その垂直な側面を所要の合成樹脂製フィ
ルムにより胴巻き包装することが一般に行なわれてい
る。ケーキへのフィルムの自動巻付けを達成するための
手段として、例えば特公平３−５６９６２号公報に係る
発明が公知である。この発明に係る装置は、ケーキ搬送
ラインの両側に位置するフィルムロールからケーキの搬
送手段を横断する方向に供給されてその搬送面に対して
垂直に張設されたフィルムに向けてケーキを供給し、該
ケーキの前進と共にフィルムをケーキの側面に巻付けた
後、ケーキ後端部において該フィルムを溶断シールする
ことで胴巻き包装するよう構成されている。2. Description of the Related Art In order to prevent quality deterioration of a short cake having a triangular shape in a plan view and other rectangular block-shaped cakes, it is common practice to wrap the vertical side surface of the short cake with a required synthetic resin film. Has been. As a means for achieving automatic film winding on a cake, for example, the invention disclosed in Japanese Patent Publication No. 3-56962 is known. The apparatus according to the present invention supplies the cake from the film rolls located on both sides of the cake transfer line in the direction traversing the cake transfer means and supplies the cake toward the film stretched perpendicularly to the transfer surface. The film is wound around the side surface of the cake as the cake advances, and then the film is fused and sealed at the rear end of the cake to be wrapped in a cylinder.

【０００３】前記包装装置においては、通電加熱式の薄
板状ヒータが設けられたシール体と、シリコンゴム等か
らなる弾性部材を備えたシール受け部とをケーキの搬送
中心に向けて相互に近接離間移動自在に備え、シール体
とシール受け部とでフィルムを挟んで溶断シールするよ
う構成されていた。In the above packaging device, a seal body provided with an electric heating type thin plate heater and a seal receiving portion provided with an elastic member made of silicon rubber or the like are moved toward and away from each other toward the center of cake conveyance. It was configured to be movable, and the film was sandwiched between the seal body and the seal receiving portion for fusing and sealing.

【０００４】また、フィルムを溶断シールする手段とし
ては、前述した構成の他に、例えば特開平２−２３３３
１２号公報に開示されるようなシールバー方式が存在す
る。すなわち、被包装物の搬送路を挟む上下に対向し
て、フィルムのシールおよび切断を行なう一対のヒータ
付きシール切断装置が昇降自在に配設され、被包装物に
胴巻きされたフィルムを一対のシール切断装置により上
下から挟持してシールおよび切断するよう構成したもの
であった。As means for fusing and sealing the film, in addition to the above-mentioned construction, for example, Japanese Patent Laid-Open No. 2233/1993.
There is a seal bar method as disclosed in Japanese Patent No. That is, a pair of seal-cutting devices with heaters for sealing and cutting the film are vertically arranged so as to face each other across the transport path of the packaged object so that the film can be wrapped around the packaged object in a pair. It was configured to be sandwiched by a cutting device from above and below for sealing and cutting.

【０００５】[0005]

【発明が解決しようとする課題】前述したシール体とシ
ール受け部とからなる溶断シール手段では、シール受け
部を構成する弾性部材とシール体を構成する薄板状ヒー
タの当接する各シール部分が損耗しやすく、また経年変
化等により安定した溶断シールを長期に亘って保つこと
に問題があった。また前述したシールバー方式の溶断シ
ール手段を備えた包装装置では、フィルムに常時テンシ
ョンを付与した状態でフィルムのシールおよび切断を行
なうよう構成されている。このため、シール切断装置に
よる溶断シール時にフィルムの切断が確実に行なわれな
くても、フィルムが引張られることにより該フィルムの
切離しが達成される。しかし、被包装物がケーキのよう
に軟質な場合、フィルムにケーキを押込む際にフィルム
の張力により該ケーキの形を損ねてしまうおそれがあ
る。しかも、軽量物品の場合はフィルムの張力により被
包装物が引戻されて、溶断シール時にシール切断装置に
被包装物を噛み込んでしまうおそれがあり、軟質または
軽量な物品の溶断シールには採用することはできなかっ
た。In the above-mentioned fusing and sealing means composed of the seal body and the seal receiving portion, the respective seal portions which are in contact with the elastic member forming the seal receiving portion and the thin plate heater forming the seal body are worn. In addition, there is a problem in that a stable fusing seal is maintained for a long period of time due to deterioration over time. Further, in the packaging apparatus provided with the above-mentioned seal-bar type fusing and sealing means, the film is configured to be sealed and cut while the film is always under tension. Therefore, even if the film is not reliably cut at the time of fusing and sealing by the seal cutting device, the film can be separated by pulling the film. However, when the object to be packaged is soft like a cake, the shape of the cake may be damaged by the tension of the film when the cake is pushed into the film. Moreover, in the case of lightweight products, the package may be pulled back by the tension of the film, and the package may get caught in the seal cutting device during the fusion cutting. I couldn't.

【０００６】[0006]

【発明の目的】この発明は、前述したフィルムの溶断シ
ールに内在している前記欠点に鑑み、これを好適に解決
するべく提案されたものであって、フィルムの切離しを
良好に行なうと共に物品供給側でのシールを確実に行な
い、ケーキ等の軟質物品や軽量物品の胴巻き包装に際し
てのフィルムの溶断シールに好適に使用し得る胴巻き包
装装置におけるフィルムの溶断シールバーを提供するこ
とを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks inherent in the fusing seal of a film described above, and has been proposed in order to solve the problem suitably. An object of the present invention is to provide a fusing seal bar for a film in a body wrapping device that can be reliably sealed on the side and can be suitably used for fusing and sealing a film when wrapping a soft article such as a cake or a light article in a body wrapping.

【０００７】[0007]

【課題を解決するための手段】前記課題を克服し、所期
の目的を好適に達成するため本発明は、物品の搬送路を
横断する方向に張設されたフィルムに向けて物品を供給
し、該物品の前進と共に引出されたフィルムを物品に胴
巻きした後、物品後端部においてフィルムを挟んで溶断
シールする胴巻き包装装置におけるフィルムの溶断シー
ルバーであって、前記フィルムを挟んで受け側となる一
方のシールバーは、そのシール面が平面に形成され、前
記フィルムを挟んでシール側となる他方のシールバー
は、そのシール部が尖った刃先を有し、前記シール部に
おける物品供給側の面は、刃先から微小距離離れた点ま
で一定角度で傾斜する第１傾斜面および該点から端部ま
で受け側シールバーのシール面から離間する方向に一定
角度で傾斜する第２傾斜面からなり、また物品搬出側の
面は刃先から端部まで一定角度で傾斜する第３傾斜面で
構成され、前記受け側シールバーとシール側シールバー
とのシール状態で、前記第１傾斜面と受け側シールバー
のシール面とがなす角度は、前記第３傾斜面とシール面
とがなす角度より小さく設定されると共に、前記第２傾
斜面と受け側シールバーのシール面とがなす角度は、前
記第３傾斜面とシール面とがなす角度より小さく設定さ
れていることを特徴とする。SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and preferably achieve an intended purpose, the present invention supplies an article toward a film stretched in a direction traversing a conveyance path of the article. A fusion-cutting seal bar of a film in a body-wrapping device that winds a film drawn out together with the advance of the article around the article, and then melts and seals the film at the rear end of the article by sandwiching the film and a receiving side. One of the seal bars has a sealing surface formed into a flat surface, and the other seal bar, which is the sealing side with the film sandwiched, has a sharp cutting edge at the sealing portion, and is provided on the article supply side of the sealing portion. The surface is a first inclined surface that inclines at a constant angle up to a point a minute distance away from the cutting edge, and a second inclined surface that inclines at a constant angle in the direction away from the sealing surface of the receiving side seal bar from that point to the end. An inclined surface, and a surface on the article discharge side is composed of a third inclined surface that inclines at a constant angle from the cutting edge to the end, and in the sealed state of the receiving side seal bar and the sealing side seal bar, the first inclined surface And the sealing surface of the receiving side seal bar is set to be smaller than the angle formed by the third inclined surface and the sealing surface, and the angle formed by the second inclined surface and the sealing surface of the receiving side seal bar. Is set to be smaller than the angle formed by the third inclined surface and the sealing surface.

【０００８】前記目的を好適に達成するため本願の別の
発明は、フィルム包装されるべき所要形状のケーキを搬
送する供給コンベヤと、この供給コンベヤの下流側に配
設したケーキ搬出コンベヤと、前記ケーキ供給コンベヤ
の下流側において、供給源からケーキ搬送ラインを横断
する方向にフィルムを供給し、これを搬送面に対して垂
直に張設するフィルム供給手段と、前記フィルムの張設
位置の下流において前記ケーキの搬送中心に向けて相互
に近接離間移動可能な一対の溶断シールバーを有し、ケ
ーキが張設位置を通過したタイミングに応じて前記供給
源から供給したフィルムを物品の後端部で垂直に溶断シ
ールするシール手段とを備えたケーキの胴巻き包装装置
における溶断シールバーであって、前記フィルムを挟ん
で受け側となる一方のシールバーは、そのシール面が平
面に形成され、前記フィルムを挟んでシール側となる他
方のシールバーは、そのシール部が尖った刃先を有し、
前記シール部におけるケーキ供給側の面は、刃先から微
小距離離れた点まで一定角度で傾斜する第１傾斜面およ
び該点から端部まで受け側シールバーのシール面から離
間する方向に一定角度で傾斜する第２傾斜面からなり、
またケーキ搬出側の面は刃先から端部まで一定角度で傾
斜する第３傾斜面で構成され、前記受け側シールバーと
シール側シールバーとのシール状態で、前記第１傾斜面
と受け側シールバーのシール面とがなす角度は、前記第
３傾斜面とシール面とがなす角度より小さく設定される
と共に、前記第２傾斜面と受け側シールバーのシール面
とがなす角度は、前記第３傾斜面とシール面とがなす角
度より小さく設定されていることを特徴とする。In order to preferably achieve the above object, another invention of the present application is a supply conveyor for conveying a cake having a desired shape to be film-wrapped, a cake discharge conveyor arranged downstream of the supply conveyor, and On the downstream side of the cake supply conveyor, a film supply means for supplying a film from a supply source in a direction crossing the cake transfer line, and stretching the film perpendicularly to the transfer surface, and downstream of the film tension position. The cake has a pair of fusing seal bars movable toward and away from each other toward the center of conveyance of the cake, and the film supplied from the supply source according to the timing when the cake passes through the tension position is provided at the rear end of the article. A fusing seal bar in a body-wrapping device for a cake, comprising a sealing means for fusing and sealing vertically, which is a receiving side with the film sandwiched therebetween. The seal bar, the seal surface is formed on a plane, the other seal bars to be sealed side across the film has a cutting edge that sealing portion is pointed,
The surface of the seal portion on the cake supply side is at a constant angle in a direction away from the sealing surface of the receiving-side seal bar from the first inclined surface that is inclined at a constant angle to a point that is a minute distance away from the blade edge and from the point to the end. It consists of an inclined second inclined surface,
The surface on the cake discharge side is composed of a third inclined surface that inclines at a constant angle from the blade edge to the end portion, and the first inclined surface and the receiving side seal are in a sealed state between the receiving side seal bar and the sealing side seal bar. The angle formed by the seal surface of the bar is set smaller than the angle formed by the third inclined surface and the seal surface, and the angle formed by the second inclined surface and the seal surface of the receiving side seal bar is set to the first angle. It is characterized in that it is set smaller than the angle formed by the three inclined surfaces and the sealing surface.

【０００９】[0009]

【作用】物品の搬送路を横断する方向に張設されたフィ
ルムに向けて物品を供給すると、該物品の前進と共にフ
ィルムが引出されて物品に胴巻きされる。この胴巻きさ
れたフィルムは、物品後端部において受け側シールバー
とシール側シールバーとで挟んで溶断シールされる。こ
の場合において、受け側シールバーのシール面が平面に
形成されると共に、シール側シールバーのシール部は尖
った刃先を有しているので、シール面と刃先との当接に
よりフィルムの確実な切断が達成される。また、シール
側シールバーのシール部における物品供給側の面は、刃
先から微小距離離れた点まで一定角度で傾斜する第１傾
斜面および該点から端部まで受け側シールバーのシール
面から離間する方向に一定角度で傾斜する第２傾斜面を
有し、該第１傾斜面と受け側シールバーのシール面とが
なす角度は、物品搬出側の面を構成する第３傾斜面とシ
ール面とがなす角度より小さく設定されると共に、第２
傾斜面と受け側シールバーのシール面とがなす角度は、
第３傾斜面とシール面とがなす角度より小さく設定され
ている。従って、両シールバーによる溶断シールに際し
て、物品供給側のフィルムは物品搬出側より広い溶着領
域が得られるうえに、第１傾斜面とシール面とにより所
要幅で溶着され、溶断シール後のフィルムがシール個所
から剥がれるのは確実に防止される。また、シール側シ
ールバーの物品搬出側では、第３傾斜面とフィルム断面
の接触面積は物品供給側より少ないため、シールバーと
フィルムの溶着が少なくなってフィルムの切離しが良好
となる。When the article is fed toward the film stretched in the direction traversing the conveying path of the article, the film is pulled out and wound around the article as the article advances. The film thus wound is sandwiched between the receiving side seal bar and the sealing side seal bar at the rear end portion of the article to be fused and sealed. In this case, since the sealing surface of the receiving-side seal bar is formed into a flat surface and the sealing portion of the sealing-side seal bar has a sharp cutting edge, the contact between the sealing surface and the cutting edge ensures reliable film formation. Cutting is achieved. Further, the surface of the seal portion of the seal side seal bar on the article supply side is separated from the seal surface of the receiving side seal bar from the first inclined surface which is inclined at a constant angle to a point distant from the cutting edge by a certain angle. Has a second inclined surface that inclines at a constant angle in the direction in which the first inclined surface and the seal surface of the receiving-side seal bar form an angle, and the angle between the third inclined surface and the seal surface that constitutes the article unloading surface. It is set smaller than the angle formed by and
The angle between the inclined surface and the sealing surface of the receiving side seal bar is
It is set to be smaller than the angle formed by the third inclined surface and the sealing surface. Therefore, in the case of fusing and sealing with both seal bars, the film on the article supply side has a wider welding area than that on the article unloading side, and moreover, the first inclined surface and the sealing surface are welded with a required width, and the film after fusing and sealing is Detachment from the seal area is reliably prevented. Further, on the article unloading side of the seal side seal bar, the contact area between the third inclined surface and the film cross section is smaller than that on the article supply side, so welding of the seal bar and the film is reduced, and the separation of the film is improved.

【００１０】[0010]

【実施例】次に、本発明に係る胴巻き包装装置における
フィルムの溶断シールバーにつき、好適な実施例を挙げ
て、添付図面を参照しながら以下説明する。なお、実施
例では胴巻きされる物品として平面三角形状のケーキを
例に挙げて説明するが、本願はこれに限定されるもので
なく、軽量または軟弱なその他の物品の包装装置に採用
可能である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a film fusing seal bar in a body-wrapping device according to the present invention will be described below with reference to the accompanying drawings, with reference to preferred embodiments. In addition, although a planar triangular cake is described as an example of a body-wound article in the embodiments, the present application is not limited thereto, and can be applied to a packaging device for other lightweight or soft articles. .

【００１１】(供給・搬出コンベヤについて)図１に示す
ように、箱状ケーシングからなる装置本体１４の上面に
は、その幅方向の略中央に長手方向に沿って長溝(図示
せず)が形成され、この長溝に供給コンベヤ１５と搬出
コンベヤ１６とが縦列に配設されている。このコンベヤ
１５,１６は、何れも無端ベルトからなるコンベヤであ
って、その搬送面を同一レベルにしている。また両コン
ベヤ１５,１６は、夫々図示しないモータにより走行駆
動されるが、搬出コンベヤ１６は、後述するシール装置
の作動時に走行および走行停止が制御される。なお図１
に示す如く、フィルム張設位置の僅か上流位置における
供給コンベヤ１５の両側に、例えば光電スイッチからな
る投受光手段２３,２４が対向配置され、これによりケ
ーキ１２の前端部の到来および後端部の通過を検出可能
になっている。この投受光手段２３,２４は、図示しな
い電気制御回路系に電気接続される。(Regarding Supply / Unload Conveyor) As shown in FIG. 1, a long groove (not shown) is formed along the longitudinal direction on the upper surface of the apparatus main body 14 made of a box-shaped casing at approximately the center in the width direction. The supply conveyor 15 and the carry-out conveyor 16 are arranged in tandem in the long groove. The conveyors 15 and 16 are both endless belt conveyors, and their conveying surfaces are at the same level. Further, both conveyors 15 and 16 are driven and driven by a motor (not shown), respectively, but the carry-out conveyor 16 is controlled to move and stop when the sealing device described later is activated. FIG. 1
As shown in FIG. 3, light projecting / receiving means 23 and 24, which are, for example, photoelectric switches, are arranged opposite to each other on both sides of the supply conveyor 15 at a position slightly upstream of the film tension position, whereby the arrival of the front end of the cake 12 and the rear end thereof. The passage can be detected. The light emitting / receiving means 23, 24 are electrically connected to an electric control circuit system (not shown).

【００１２】(フィルムロールの支持手段について)前記
供給コンベヤ１５の下流端部における僅か上流側には、
この供給コンベヤ１５上に、該コンベヤ１５を横断する
方向(ケーキ１２の搬送方向に対し交差する方向)に繰出
されて、搬送面に対し垂直にフィルムＦが張設されるよ
うになっている。すなわち、図１に示すように、供給コ
ンベヤ１５を挟んで、その両側の本体上面に固定軸１９
が夫々垂直に配設され、各固定軸１９に回転自在に外嵌
したホルダ２１に、ケーキ側面に胴巻き包装される熱融
着性の合成樹脂フィルムＦのフィルムロール２０が着脱
自在に嵌挿される。(Regarding the means for supporting the film roll) At the downstream end of the supply conveyor 15 slightly upstream,
On this supply conveyor 15, the film F is stretched in a direction crossing the conveyor 15 (direction intersecting with the conveying direction of the cake 12) and stretched perpendicularly to the conveying surface. That is, as shown in FIG. 1, the supply shaft 15 is sandwiched and fixed shafts 19 are provided on the upper surfaces of the main body on both sides of the supply shaft 15.
The film roll 20 of the heat-fusible synthetic resin film F, which is wrapped around the side of the cake, is removably inserted into the holder 21 rotatably fitted around the fixed shafts 19 respectively. .

【００１３】前記ホルダ２１に嵌挿されたフィルムロー
ル２０のフィルムＦは、後述する回転駆動手段の正転駆
動により繰出されて、本体１４の所定位置に立設した複
数の案内ローラ２２を介してフィルム張設位置まで案内
される。そして、前記供給コンベヤ１５を挟んで対向す
る両ホルダ２１,２１に嵌挿したフィルムロール２０,２
０から繰出されたフィルムＦ,Ｆの先端が、後述のシー
ル手段により溶断シールされるようになっている。この
ように各端部において溶融接合した両フィルムＦ,Ｆ
は、図１に示すように、前記供給コンベヤ１５の下流端
部より僅か上流において、該コンベヤ１５を横断し、そ
の搬送面に対し垂直に延在することになる。The film F of the film roll 20 fitted into the holder 21 is fed out by the forward rotation drive of the rotation drive means described later, and is passed through a plurality of guide rollers 22 standing at predetermined positions of the main body 14. You will be guided to the film tension position. Then, the film rolls 20 and 2 fitted in the holders 21 and 21 facing each other with the supply conveyor 15 interposed therebetween.
The leading ends of the films F, F drawn from 0 are fused and sealed by a sealing means described later. Both films F, F melt-bonded at each end in this way
Will extend transversely across the conveyor 15 and perpendicular to its transport plane, slightly upstream from the downstream end of the conveyor 15, as shown in FIG.

【００１４】(シール手段について)前述した供給コンベ
ヤ１５の下流端部と搬出コンベヤ１６の上流端部との間
に形成される所要の間隙を、一対の溶断シールバー２
５,２６が相互に近接および離間して、ケーキの側面に
巻付けたフィルムＦのシールおよび切断をなし得るよう
になっている。すなわち、図２に示す如く、平行スライ
ド機構に関係的に接続されている保持部材２７に、シー
ル側シールバー２５が垂直に配設されると共に、コンベ
ヤ１５,１６の搬送ラインを挟んでシール側シールバー
２５と対向する反対側の位置に、平行スライド機構に関
係的に接続された保持部材２８に受け側シールバー２６
が垂直に配設されている。そして平行スライド機構を作
動させることにより、前記シール側シールバー２５およ
び受け側シールバー２６が、コンベヤ１５,１６の搬送
ライン中央において、相互に近接および離間移動し得る
よう構成されている(図３参照)。(Regarding Sealing Means) A pair of fusing seal bars 2 are provided with a required gap formed between the downstream end of the supply conveyor 15 and the upstream end of the carry-out conveyor 16.
5, 26 are arranged so as to be close to and apart from each other so that the film F wrapped around the side surface of the cake can be sealed and cut. That is, as shown in FIG. 2, the seal side seal bar 25 is vertically arranged on the holding member 27 connected to the parallel slide mechanism, and the seal side seal bar 25 is sandwiched between the conveyor lines. The receiving side seal bar 26 is attached to the holding member 28 connected to the parallel slide mechanism at a position opposite to the seal bar 25.
Are arranged vertically. Then, by operating the parallel slide mechanism, the seal side seal bar 25 and the receiving side seal bar 26 are configured to be able to move toward and away from each other at the center of the conveyor lines of the conveyors 15 and 16 (FIG. 3). reference).

【００１５】前記平行スライド機構は、図２に示す如
く、コンベヤの搬送面よりも下方において、コンベヤの
走行方向に直交する方向に配設した一対のスライドシャ
フト２９,２９を平行に備え、両スライドシャフト２９,
２９に一対の支持体３０,３０が摺動自在に配設されて
いる。各支持体３０には、コンベヤの搬送面よりも上方
に突出する取付板３１,５７が配設され、一方の取付板
３１に前記保持部材２７に配設したホルダ４８が高さ調
節可能に配設されると共に、他方の取付板５７に前記保
持部材２８が後述する複数のローラ７１を介して配設さ
れる。As shown in FIG. 2, the parallel slide mechanism is provided with a pair of slide shafts 29, 29 arranged parallel to each other in a direction orthogonal to the traveling direction of the conveyor below the conveying surface of the conveyor, and both slides are provided. Shaft 29,
A pair of support bodies 30, 30 are slidably disposed on 29. Each support 30 is provided with mounting plates 31 and 57 projecting upward from the convey surface of the conveyor, and one mounting plate 31 is provided with a holder 48 mounted on the holding member 27 so that its height can be adjusted. The holding member 28 is provided on the other mounting plate 57 via a plurality of rollers 71 described later.

【００１６】なお、支持体３０,３０を移動させる機構
は、左右対称であるので、図において左方に配設した機
構についてのみ説明する。図２に示す如く、支持体３０
の一側面に一対のカム板３２,３２が左右に所定間隔離
間して配設され、両カム板３２,３２間に縦方向に延在
するカム溝７２を形成している。この支持体３０に近接
して本体１４に回転軸３３が回転自在に枢支され、この
回転軸３３の支持体３０を指向する端部に、クランクレ
バー３４の一端が固定されている。該クランクレバー３
４の先端にはカムフォロワ３５が回転自在に枢支され、
このカムフォロワ３５は前記カム溝７２に遊嵌されてい
る。従って、クランクレバー３４を回転軸３３を中心と
して回動させることにより、カムフォロワ３５がカム溝
７２中を摺動しつつ支持体３０はスライドシャフト２
９,２９に沿って移動する。Since the mechanism for moving the supports 30, 30 is bilaterally symmetrical, only the mechanism arranged on the left side in the figure will be described. As shown in FIG.
A pair of cam plates 32, 32 are arranged on one side surface at a predetermined distance from each other on the left and right, and a cam groove 72 extending in the vertical direction is formed between the cam plates 32, 32. A rotary shaft 33 is rotatably supported by the main body 14 so as to be close to the support 30, and one end of a crank lever 34 is fixed to an end of the rotary shaft 33 that faces the support 30. The crank lever 3
A cam follower 35 is rotatably supported at the tip of 4,
The cam follower 35 is loosely fitted in the cam groove 72. Therefore, by rotating the crank lever 34 about the rotary shaft 33, the cam follower 35 slides in the cam groove 72 while the support body 30 moves.
Move along 9,29.

【００１７】前記スライドシャフト２９の下方には、本
体１４の内部に固定した支持プレート３６にクラッチ・
ブレーキ付モータ３７が配設され、このモータ３７の出
力軸にスプロケット３８が配設されている。また、支持
プレート３６に複数のスプロケット３９が回転自在に枢
支され、これらのスプロケット３９と、前記回転軸３
３,３３に配設したスプロケット４０,４０およびスプロ
ケット３８とに、無端チェン４１が共通的に巻掛けられ
ている。すなわち、モータ３７を回転したもとで、クラ
ッチをオン,ブレーキをオフすることにより、前記回転
軸３３,３３が同期的に回転し、クランクレバー３４,３
４を該回転軸３３,３３を中心として回転させる。これ
により、前述した如く支持体３０,３０がスライドシャ
フト２９,２９に沿って移動し、前記シール側シールバ
ー２５および受け側シールバー２６が、コンベヤ１５,
１６の物品搬送中心に対して、相互に近接および離間す
る平行往復運動を反復する。なお、クラッチ・ブレーキ
をオン・オフ制御することにより、前記平行スライド機
構の駆動・停止が行なわれる。Below the slide shaft 29, a clutch plate is fixed to a support plate 36 fixed inside the main body 14.
A motor 37 with a brake is provided, and a sprocket 38 is provided on the output shaft of the motor 37. Further, a plurality of sprockets 39 are rotatably supported on the support plate 36, and these sprockets 39 and the rotary shaft 3 are rotatably supported.
An endless chain 41 is commonly wound around the sprockets 40, 40 and the sprocket 38 arranged at 3, 33. That is, when the motor 37 is rotated and the clutch is turned on and the brake is turned off, the rotary shafts 33, 33 are synchronously rotated, and the crank levers 34, 3 are rotated.
4 is rotated about the rotation shafts 33, 33. As a result, as described above, the supports 30, 30 move along the slide shafts 29, 29, and the seal-side seal bar 25 and the receiving-side seal bar 26 move to the conveyor 15,
Parallel reciprocating motions that are close to and away from each other are repeated with respect to 16 article transport centers. The parallel slide mechanism is driven / stopped by controlling the on / off of the clutch / brake.

【００１８】ここで、左側に配設した回転軸３３には、
図２に示す如く、円周方向の所定個所にスリットを穿設
した円盤４２,４３が同軸的に固定され、回転軸３３と
一体的に回転するよう構成している。この円盤４２,４
３に近接した位置には、スリットを検知する光センサか
らなる検知手段４４,４５が対応的に配設され、検知手
段４４により両シールバー２５,２６が相互に離間した
原点位置を検知すると共に、検知手段４５により両シー
ルバー２５,２６が相互に当接したシール位置を検知す
るよう設定されている。Here, on the rotary shaft 33 arranged on the left side,
As shown in FIG. 2, disks 42 and 43 having slits formed at predetermined positions in the circumferential direction are coaxially fixed and are configured to rotate integrally with the rotary shaft 33. This disk 42,4
3, detection means 44, 45 composed of optical sensors for detecting the slits are provided correspondingly, and the detection means 44 detects the origin position where both seal bars 25, 26 are separated from each other. The detecting means 45 is set to detect the seal position where the seal bars 25 and 26 are in contact with each other.

【００１９】(シール側シールバーと受け側シールバー
について)図３に示す如く、全体として横Ｔ字形に形成
された保持部材２７における垂直部２７ａの先端部に、
前記シール側シールバー２５が配設されると共に、その
水平部２７ｂは、前記取付板３１に高さ調節可能に配設
されているホルダ４８に着脱自在に固定されている。ま
た保持部材２７の垂直部２７ａには、シール側シールバ
ー２５を挟む両側にフィルム押え４６が配設され、この
フィルム押え４６は保持部材２７に対して左右方向(受
け側シールバー２６に対する近接離間方向)に進退移動
自在に配設されている。フィルム押え４６は、これに関
係的に配設した圧縮ばね４７の弾力作用下に、常にはフ
ィルム押え４６における前端面を、保持部材２７に配設
した前記シール側シールバー２５の垂直先端部(刃先)よ
りも僅かに受け側シールバー２６側に突出するよう設定
される。これはシール側シールバー２５がフィルムＦを
介して受け側シールバー２６に接触する直前に、前記フ
ィルム押え４６の垂直端縁部が、フィルムＦを受け側シ
ールバー２６側に配設したフィルム押え７３に対して押
え付けるようにして、溶融切断位置のずれ発生を防止す
るためのものである。(Regarding the seal-side seal bar and the receiving-side seal bar) As shown in FIG. 3, at the tip of the vertical portion 27a of the holding member 27 formed in a horizontal T shape as a whole,
The seal side seal bar 25 is disposed, and the horizontal portion 27b thereof is detachably fixed to a holder 48 which is disposed on the mounting plate 31 so that its height can be adjusted. The vertical portion 27a of the holding member 27 is provided with film retainers 46 on both sides of the seal side seal bar 25. The film retainers 46 are arranged in the left-right direction with respect to the holding member 27 (closely spaced from the receiving side seal bar 26). It is arranged so that it can move back and forth. The film retainer 46 always has the front end face of the film retainer 46 under the elastic force of the compression spring 47 disposed in relation to the film retainer 46 so that the vertical tip end portion of the seal side seal bar 25 disposed on the holding member 27 ( It is set so as to project slightly toward the receiving side seal bar 26 side than the cutting edge). Immediately before the seal side seal bar 25 comes into contact with the receiving side seal bar 26 via the film F, the vertical edge portion of the film retainer 46 is a film retainer arranged on the receiving side seal bar 26 side. This is to prevent it from being displaced at the melt cutting position by pressing it against 73.

【００２０】前記受け側シールバー２６が配設される側
の取付板５７の所定位置には、上下および左右に離間す
る４個のローラ７１が回転自在に枢支され、これら４個
のローラ７１によって前記支持部材２８が左右方向(シ
ール側シールバー２５に対する近接離間方向)に移動自
在に支持されている。すなわち支持部材２８は全体とし
て横Ｔ字形に形成され、その水平部２８ｂが４個のロー
ラ７１に移動自在に支持される。また、支持部材２８の
シール側シールバー２５を指向する端部に形成された垂
直部２８ａに受け側シールバー２６が配設され、該受け
側シールバー２６が所要の押圧力を受けた際に、支持部
材２８がローラ７１に案内されて左方向(シール側シー
ルバー２５から離間する方向)に後退するよう構成され
る。なお支持部材２８は、取付板５７に配設した圧縮ば
ね６８により、常には受け側シールバー２６を対向する
シール側シールバー２５方向に押圧付勢されている。Four rollers 71, which are vertically and horizontally separated from each other, are rotatably supported at predetermined positions of the mounting plate 57 on the side where the receiving-side seal bar 26 is disposed, and these four rollers 71 are rotatably supported. The supporting member 28 is movably supported in the left-right direction (direction of approaching and separating from the seal-side seal bar 25). That is, the support member 28 is formed in a horizontal T shape as a whole, and the horizontal portion 28b thereof is movably supported by the four rollers 71. Further, the receiving side seal bar 26 is disposed in the vertical portion 28a formed at the end portion of the support member 28 which faces the sealing side seal bar 25, and when the receiving side seal bar 26 receives a required pressing force. The support member 28 is configured to be guided by the roller 71 and retract in the leftward direction (the direction away from the seal side seal bar 25). The support member 28 is always urged by the compression spring 68 arranged on the mounting plate 57 so as to press the receiving seal bar 26 toward the facing seal bar 25.

【００２１】前記受け側シールバー２６は支持部材２８
の垂直部２８ａに対してピン７４を介して上下方向に揺
動可能に枢支されており、垂直部２８ａにおける枢支点
を挟む上下位置に配設した調整ねじ７５,７５によっ
て、その先端面(シール面)を略垂直に調整保持し得るよ
う構成されている。また、調整ねじ７５,７５と受け側
シールバー２６との間に僅かな隙間が形成されるよう設
定されており、シール側シールバー２５と受け側シール
バー２６とが所要圧力を受けて当接した際に、各々の当
接部がその長手方向全体に亘って均一に当接するように
なっている。前記支持部材２８には、他方の支持部材２
７に配設したフィルム押え４６と対向するフィルム押え
７３が配設され、前述した如く、両フィルム押え４６,
７３によりシールバー２５,２６によるフィルムＦの溶
断シールに際しての溶融切断位置のずれ発生を防止する
ようになっている。なお、受け側シールバー２６の長さ
寸法は、当該包装装置に使用されるフィルムＦの最大幅
寸法よりも長く設定されており、ケーキ１２の寸法変更
に際して使用されるフィルムＦの幅寸法が変更された場
合の高さ調節を不要としている。すなわち、ケーキ１２
に胴巻きされるフィルムＦの寸法変更に際しては、前記
シール側シールバー２５側の高さ調節のみで対応し得る
よう構成されている。The receiving side seal bar 26 is a support member 28.
Of the vertical portion 28a of the vertical portion 28a is pivotally supported by a pin 74 so as to be swingable in the vertical direction, and its tip end surface ( It is configured so that the sealing surface) can be adjusted and held substantially vertically. In addition, a slight gap is set between the adjusting screws 75, 75 and the receiving side seal bar 26, and the sealing side seal bar 25 and the receiving side seal bar 26 contact with each other under a required pressure. In doing so, the respective abutting portions are abutted uniformly over the entire longitudinal direction thereof. The support member 28 includes the other support member 2
The film retainer 73 disposed opposite to the film retainer 46 disposed in FIG.
The numeral 73 prevents the melt cutting position from being displaced when the film F is melt-sealed by the seal bars 25 and 26. The length dimension of the receiving-side seal bar 26 is set longer than the maximum width dimension of the film F used in the packaging device, and the width dimension of the film F used when changing the dimension of the cake 12 is changed. It is unnecessary to adjust the height when it is done. That is, cake 12
When the size of the film F wound around the body is changed, the height of the seal side seal bar 25 side can be adjusted.

【００２２】このように構成したことにより、前記スラ
イド機構が作動して両シールバー２５,２６が相互に近
接した際に、シール側シールバー２５が受け側シールバ
ー２６に当接するのに先立って、先ず対向するフィルム
押え４６,７３が当接してフィルムＦの位置決めを行な
う。そして、シール側シールバー２５と受け側シールバ
ー２６とがフィルムＦを挟んで当接することにより、該
フィルムＦは垂直に溶断シールされる。With this configuration, when the slide mechanism operates and both seal bars 25, 26 come close to each other, the seal side seal bar 25 comes into contact with the receiving side seal bar 26 prior to contact. First, the opposing film retainers 46 and 73 come into contact with each other to position the film F. The seal-side seal bar 25 and the receiving-side seal bar 26 are in contact with each other with the film F sandwiched therebetween, so that the film F is vertically fused and sealed.

【００２３】なお、前記取付板３１,５７の上部にコン
ベヤ方向に水平に延在する支持片６９が夫々配設され、
この支持片６９に搬出コンベヤ１６側に延在して、フィ
ルムＦに両シールバー２５,２６が溶断シールを施すに
際し、ケーキ１２を両シールバー２５,２６の中央位置
に寄せる作用を行なうと共に、ケーキ１２の側面にフィ
ルムＦを緩徐に圧接する案内板４９が自由揺動可能に配
設されている(図１参照)。また、支持片６９の供給コン
ベヤ側に臨む端部に、垂直に補助案内ローラ７０が回転
自在に枢支されている。これによって、張設されている
フィルムＦにケーキの前端部が当接し該フィルムＦを前
方に引出すに際し、フィルムＦが補助案内ローラ７０に
当接してその引出しが補助されるようになっている。In addition, support pieces 69 extending horizontally in the conveyor direction are provided above the mounting plates 31 and 57, respectively.
The support piece 69 is extended to the carry-out conveyor 16 side, and when the seal seals 25 and 26 are subjected to the fusing seal on the film F, the cake 12 is brought to the central position of the seal seals 25 and 26, and A guide plate 49 for gently pressing the film F is provided on the side surface of the cake 12 so as to freely swing (see FIG. 1). An auxiliary guide roller 70 is vertically rotatably supported at the end of the support piece 69 facing the supply conveyor. As a result, when the front end portion of the cake comes into contact with the stretched film F and the film F is drawn out forward, the film F comes into contact with the auxiliary guide roller 70 to assist the drawing out.

【００２４】図４〜図６に示す如く、前記受け側シール
バー２６におけるシール側シールバー２５と対向するシ
ール面９２は、その長さ方向の全長に亘って平面に形成
されている。この受け側シールバー２６には熱電対９
３、ヒートパイプ９４およびヒータ９５が内挿され、シ
ールバー２６全体を均一な設定温度に保持するよう構成
されている。また、シール側シールバー２５における受
け側シールバー２６と対向するシール部９６は、尖った
刃先９７を有し、前記シール面９２と刃先９７との当接
によりフィルムＦを確実に切断し得るようになってい
る。このシール側シールバー２５にも熱電対９３、ヒー
トパイプ９４およびヒータ９５が内挿され、シールバー
２５全体を均一な設定温度に保持するよう構成されてい
る。As shown in FIGS. 4 to 6, the seal surface 92 of the receiving side seal bar 26 facing the seal side seal bar 25 is formed flat over the entire length in the length direction. The receiving side seal bar 26 has a thermocouple 9
3, the heat pipe 94 and the heater 95 are inserted so as to maintain the entire seal bar 26 at a uniform set temperature. Further, the seal portion 96 of the seal side seal bar 25, which faces the receiving side seal bar 26, has a sharp cutting edge 97, and the film F can be surely cut by the contact between the sealing surface 92 and the cutting edge 97. It has become. A thermocouple 93, a heat pipe 94, and a heater 95 are also inserted in the seal-side seal bar 25 so as to maintain the entire seal bar 25 at a uniform set temperature.

【００２５】前記シール側シールバー２５のシール部９
６におけるケーキ供給側の面は、図８に示す如く、刃先
９７から微小距離離れた点αまで一定角度で傾斜する第
１傾斜面９８および該点αから端部まで受け側シールバ
ー２６のシール面９２から離間する方向に一定角度で傾
斜する第２傾斜面９９から構成されている。またシール
部９６におけるケーキ搬出側の面は、刃先９７から端部
まで一定角度で傾斜する第３傾斜面１００で構成され
る。そして、受け側シールバー２６のシール面９２とシ
ール側シールバー２５の刃先９７とが当接したシール状
態において、第１傾斜面９８とシール面９２とがなす角
度θ1は、前記第３傾斜面１００とシール面９２とがな
す角度θ3より小さく設定されると共に、前記第２傾斜
面９９とシール面９２とがなす角度θ2は、第３傾斜面
１００とシール面９２とがなす角度θ3より小さく設定
されている。なお、例えば角度θ1は、約５度から１５
度、角度θ2は約２０度から４０度、角度θ3は約５０度
から７０度に設定される。また刃先９７から点αまでの
距離は、約０．２ｍｍ〜０．４ｍｍに設定される。The seal portion 9 of the seal side seal bar 25
As shown in FIG. 8, the cake supply side surface of No. 6 is a first inclined surface 98 that inclines at a constant angle from a cutting edge 97 to a point α and a seal of the receiving side seal bar 26 from the point α to the end. The second inclined surface 99 is inclined at a constant angle in the direction away from the surface 92. The surface of the seal portion 96 on the cake discharge side is composed of a third inclined surface 100 that inclines at a constant angle from the blade edge 97 to the end. Then, in the sealed state where the seal surface 92 of the receiving side seal bar 26 and the cutting edge 97 of the seal side seal bar 25 are in contact with each other, the angle θ 1 formed by the first inclined surface 98 and the seal surface 92 is the third inclination. The angle θ 3 formed by the second inclined surface 99 and the seal surface 92 is set to be smaller than the angle θ 3 formed by the surface 100 and the seal surface 92, and the angle θ 2 formed by the third inclined surface 100 and the seal surface 92. It is set smaller than θ 3 . For example, the angle θ 1 is about 5 degrees to 15 degrees.
The angle θ 2 is set to about 20 to 40 degrees, and the angle θ 3 is set to about 50 to 70 degrees. The distance from the cutting edge 97 to the point α is set to about 0.2 mm to 0.4 mm.

【００２６】そして、このように設定したことにより、
両シールバー２５,２６のシール状態において、前記シ
ール面９２と刃先９７との当接によりフィルムＦを確実
に切断することができる。またケーキ１２の供給側にお
けるフィルムＦは、ケーキ１２の搬出側より広い溶着領
域が得られるうえに、第１傾斜面９８とシール面９２と
により所要幅で溶着されるから、溶断シール後のフィル
ムＦがシール個所から剥がれるのも確実に防止される。
更に、シール側シールバー２５のケーキ搬出側では、第
３傾斜面１００とフィルム断面の接触面積は供給側より
少ないため、シールバーとフィルムの溶着が少なくなっ
てフィルムＦの切離しが良好となる。なお、シール側シ
ールバー２５および受け側シールバー２６は、同一材質
の金属材料で受け側シールバー２６のシール側シールバ
ー２５との当接面をシール側シールバー２５の刃先硬度
よりも低硬度に設定したものや、または受け部材２６側
のみ若干軟質の金属材料により形成されるのが好まし
い。By setting in this way,
In the sealed state of both seal bars 25, 26, the film F can be reliably cut by the contact between the sealing surface 92 and the blade edge 97. Further, the film F on the supply side of the cake 12 has a wider welding area than that on the unloading side of the cake 12 and is welded with a required width by the first inclined surface 98 and the sealing surface 92. It is also surely prevented that F is peeled off from the seal portion.
Furthermore, on the cake unloading side of the seal side seal bar 25, the contact area between the third inclined surface 100 and the film cross section is smaller than on the supply side, so welding of the seal bar and the film is reduced and separation of the film F is improved. The seal side seal bar 25 and the receiving side seal bar 26 are made of the same metal material, and the contact surface of the receiving side seal bar 26 with the sealing side seal bar 25 has a lower hardness than the cutting edge hardness of the sealing side seal bar 25. It is preferable that it is made of a metal material that is slightly softer than the above, or only the receiving member 26 side.

【００２７】前記シール側シールバー２５のシール部９
６には、図７に示す如く、その上端部において前記刃先
９７が所要長さに亘ってケーキ搬送方向と逆方向に所要
角度(β)で折曲された折曲部９７ａが形成されている。
この折曲部９７ａは、両シールバー２５,２６のシール
状態において、フィルムＦの上端部を斜めに切断するべ
く機能し、これによりフィルムＦの胴巻き包装が終了し
たケーキ１２のフィルム前端部側の溶断シール線に一致
する上端部にＶ形切欠部９１が形成されるようになって
いる(図１２参照)。前記折曲部９７ａの折曲角度βは、
例えば１５度程度に設定される。なお、図８に示す如
く、シール部９６における折曲部９７ａと対応するケー
キ供給側の面にも第１傾斜面９８が形成されている。The seal portion 9 of the seal side seal bar 25
As shown in FIG. 7, the blade 6 has a bent portion 97a formed by bending the blade edge 97 in a direction opposite to the cake conveying direction at a required angle (β) as shown in FIG. .
The bent portion 97a functions to obliquely cut the upper end portion of the film F in the sealed state of the two seal bars 25 and 26, whereby the film front end portion side of the cake 12 on which the film F is wrapped in a cylinder is completed. A V-shaped notch 91 is formed at the upper end portion corresponding to the fusing seal line (see FIG. 12). The bending angle β of the bent portion 97a is
For example, it is set to about 15 degrees. As shown in FIG. 8, a first inclined surface 98 is also formed on the surface of the seal portion 96 corresponding to the bent portion 97a on the cake supply side.

【００２８】(テンション付与手段について)前記装置本
体１４の供給コンベヤ１５を挟む両側には、図１に示す
如く、前記各ホルダ２１の配設位置に近接して「く」字形
状のレバー５１が夫々水平揺動自在に枢支され、両レバ
ー５１,５１は、図示しない揺動機構によりその自由端
部を同期的に近接離間するよう揺動される。各レバー５
１の自由端部に、垂直上方に立設されたテンションロー
ラ５２が回転自在に枢支されている。このテンションロ
ーラ５２は、前記フィルムロール２０が着脱自在に嵌挿
されるホルダ２１を備えた固定軸１９に近接配置した２
個の案内ローラ２２,２２の間において、両案内ローラ
２２,２２に案内されるフィルムＦを挟んで反対側に位
置するよう設定される。そして、揺動機構を作動させて
レバー５１,５１を揺動することにより、前記テンショ
ンローラ５２,５２を、相互に離間する第１位置と相互
に近接する第２位置との間を移動させるよう構成され
る。第１位置は、案内ローラ２２,２２間に繰出されて
いるフィルムＦにテンションを付与し得る位置であり、
第２位置は、案内ローラ２２,２２間に繰出されている
フィルムＦから離間してテンションを解除し得る位置で
ある。(Regarding Tension Applying Means) On both sides of the apparatus main body 14 which sandwich the supply conveyor 15, as shown in FIG. Each of them is pivotally supported so as to be horizontally swingable, and both levers 51, 51 are swingably moved by a swinging mechanism (not shown) so that their free ends are synchronously moved toward and away from each other. Each lever 5
A tension roller 52 erected vertically upward is rotatably supported at a free end of the roller 1. The tension roller 52 is arranged close to the fixed shaft 19 having a holder 21 into which the film roll 20 is detachably fitted.
It is set so as to be located on the opposite side between the individual guide rollers 22, 22 with the film F guided by the both guide rollers 22, 22 being sandwiched therebetween. Then, by operating the swing mechanism to swing the levers 51, 51, the tension rollers 52, 52 are moved between a first position that is separated from each other and a second position that is close to each other. Composed. The first position is a position where tension can be applied to the film F fed between the guide rollers 22 and 22,
The second position is a position where the tension can be released by separating from the film F fed between the guide rollers 22 and 22.

【００２９】(フィルムロールの回転駆動手段について)
前記各ホルダ２１の配設位置に近接して、該ホルダ２１
に嵌挿されたフィルムロール２０の回転駆動手段が配設
され、該回転駆動手段によりフィルムロール２０からの
フィルムＦの繰出しおよび巻戻しを行なうよう構成され
ている。なお、供給コンベヤ１５を挟んで両側に配設さ
れる回転駆動手段は、その基本的な構成が左右同一であ
るので、一方の手段についてのみ説明し、他方の手段の
同一部材には同一の符号を付すものとする。(Regarding the rotation driving means of the film roll)
The holders 21 are placed close to the positions where the holders 21 are arranged.
A rotation driving means for the film roll 20 inserted into the film roll 20 is provided, and the rotation driving means is configured to feed and rewind the film F from the film roll 20. Since the rotational driving means arranged on both sides of the supply conveyor 15 have the same basic configuration on the left and right, only one means will be described and the same members of the other means will be denoted by the same reference numerals. Shall be attached.

【００３０】図１に示す如く、装置本体１４に保持体８
１が配設固定され、この保持体８１に揺動軸８２が垂直
に挿通されて回転自在に支持されている。揺動軸８２の
保持体８１から上方に突出する端部に、レバー８３の一
端が一体回転可能に配設されると共に、このレバー８３
の自由端部上面に正逆回転可能なモータ８４が倒立配置
してある。またモータ８４のレバー８３下面に突出する
出力軸に、ロール体８５が配設されている。このロール
体８５は、その外周端をモータ８４およびレバー８３の
一側面より外方に延出するよう位置決めされており、前
記ホルダ２１に嵌挿されているフィルムロール２０の外
周縁にモータ８４およびレバー８３が干渉することなく
ロール体８５の外周端のみを当接し得るようになってい
る。このロール体８５は、ゴムや軟質の合成樹脂等の弾
性を有する材料により好適に形成される。またロール体
８５は、揺動軸８２に関係的に配設した引張りばね(図
示せず)により付勢されて、常にフィルムロール２０の
外周縁に所要圧力で当接するよう構成されている。As shown in FIG. 1, the holder 8 is attached to the main body 14 of the apparatus.
1 is disposed and fixed, and a swing shaft 82 is vertically inserted into the holder 81 and is rotatably supported. One end of a lever 83 is integrally rotatably disposed at an end of the swing shaft 82 protruding upward from the holding body 81, and the lever 83 is also rotatable.
A motor 84 capable of rotating in the normal and reverse directions is placed upside down on the upper surface of the free end of the. A roll body 85 is arranged on the output shaft of the motor 84 protruding from the lower surface of the lever 83. The roll body 85 is positioned so that its outer peripheral edge extends outward from one side surface of the motor 84 and the lever 83, and the motor 84 and the motor 84 and the outer peripheral edge of the film roll 20 fitted into the holder 21 are positioned. Only the outer peripheral end of the roll body 85 can be brought into contact with the lever 83 without interference. The roll body 85 is preferably formed of an elastic material such as rubber or soft synthetic resin. The roll body 85 is biased by a tension spring (not shown) arranged in relation to the swing shaft 82 so as to always come into contact with the outer peripheral edge of the film roll 20 at a required pressure.

【００３１】前記モータ８４は、前記投受光手段２３,
２４がケーキ１２の前端部を検出した際に正転駆動され
て、前記ロール体８５が当接するフィルムロール２０か
らフィルムＦを繰出すよう設定される。また、前記シー
ルバー２５,２６が当接するタイミングで逆転駆動され
て、フィルムロール２０にフィルムＦを巻戻すよう設定
されている。The motor 84 includes the light emitting and receiving means 23,
When 24 detects the front end portion of the cake 12, it is driven to rotate normally, and the film F is set to be fed out from the film roll 20 with which the roll body 85 contacts. Further, it is set so that the film F is rewound on the film roll 20 by being driven in reverse when the seal bars 25, 26 come into contact with each other.

【００３２】[0032]

【実施例の作用】次に、実施例に係る溶断シールバーを
備えた胴巻き包装装置の作用につき、以下説明する。先
ず、包装待機状態では、両シールバー２５,２６は、図
１に示す如く、最大限相互に離間した位置において停止
してシール動作を待機している。また供給コンベヤ１５
を挟んで両側に対向的に配置した両ホルダ２１,２１に
は、夫々フィルムロール２０が嵌挿され、これら各ロー
ル２０のフィルムＦ先端は、予め前記両シールバー２
５,２６を作動させることにより溶着シールしてある。
すなわち両フィルムＦ,Ｆは、夫々複数の案内ローラ２
２を経て前記供給コンベヤ１５の下流端部側に繰出さ
れ、この供給コンベヤ１５の中央部において前記の溶断
シールが施されて、該コンベヤ１５を横断し(ケーキ１
２の搬送方向に対して交差する)、その搬送面に対して
垂直に張設された状態となっている。Operation of the Embodiment Next, the operation of the body wrapping device having the fusing seal bar according to the embodiment will be described below. First, in the packaging standby state, as shown in FIG. 1, both seal bars 25 and 26 are stopped at positions where they are separated from each other to the maximum and are waiting for the sealing operation. Also supply conveyor 15
The film rolls 20 are fitted and inserted into both holders 21, 21 which are arranged oppositely on both sides of the seal bar 2 in advance.
The welding and sealing is performed by activating 5, 26.
That is, both films F, F are provided with a plurality of guide rollers 2 respectively.
2 is fed to the downstream end side of the supply conveyor 15, and the fusing seal is applied at the central portion of the supply conveyor 15 to cross the conveyor 15 (cake 1
2 crosses the conveyance direction) and is stretched perpendicularly to the conveyance surface.

【００３３】このとき前記モータ８４は停止しているの
で、フィルムロール２０の外周縁に当接しているロール
体８５により、該ロール２０の自由回転に対して制動が
付与されている。また、固定軸１９に近接して配設した
案内ローラ２２,２２間に位置するフィルムＦは、テン
ションローラ５２が両案内ローラ２２,２２よりも供給
コンベヤ１５から離間する第１位置方向に移動されて、
所要の張力が付与されている(図１参照)。なお、前記シ
ール側シールバー２５および受け側シールバー２６に内
蔵のヒータ９５,９５に通電が開始されて、その溶断シ
ールを可能な状態で待機している。At this time, since the motor 84 is stopped, braking is applied to the free rotation of the roll 20 by the roll body 85 contacting the outer peripheral edge of the film roll 20. Further, the film F located between the guide rollers 22 and 22 arranged close to the fixed shaft 19 is moved in the first position direction in which the tension roller 52 is farther from the supply conveyor 15 than the guide rollers 22 and 22. hand,
The required tension is applied (see Figure 1). It should be noted that the heaters 95, 95 built in the seal side seal bar 25 and the receiving side seal bar 26 are energized to stand by in such a state that the fusing seal is possible.

【００３４】前記供給コンベヤ１５に載置した三角ケー
キ１２が該コンベヤ上を搬送されて、その前端部が前記
投受光手段２３,２４の検出部を通過すると、図示しな
い電気制御回路が作動して、前記各モータ８４が正転駆
動されて、ロール体８５によるフィルムＦの繰出しが開
始される。また前記揺動機構が作動してレバー５１,５
１を相互に反対方向に揺動することにより、テンション
ローラ５２,５２を第２位置に向けて回動させ、フイル
ムＦ,Ｆに対するテンションを解除する。なお、フィル
ムロール２０からフィルムＦの繰出しを行なうロール体
８５は、常にロール外周縁に所要圧力で当接されている
ので、ロール２０の径が減少しても常に一定速度でフィ
ルムＦを繰出すことができる。When the triangular cake 12 placed on the supply conveyor 15 is conveyed on the conveyor and its front end passes through the detecting portions of the light emitting / receiving means 23, 24, an electric control circuit (not shown) is activated. The motors 84 are driven in the normal direction to start feeding the film F by the roll body 85. Further, the rocking mechanism operates to operate the levers 51, 5
By swinging 1 in the opposite directions, the tension rollers 52, 52 are rotated toward the second position, and the tension on the films F, F is released. Since the roll body 85 for feeding the film F from the film roll 20 is always in contact with the outer peripheral edge of the roll at a required pressure, the film F is always fed at a constant speed even if the diameter of the roll 20 is reduced. be able to.

【００３５】前記ケーキ１２の前端部がフィルムＦを捕
えたまま更に搬送されるに伴い、図１０に示すように、
フィルムロール２０からフィルムＦがロール体８５によ
り繰出される。そして該ケーキ１２の後端部が、前記投
受光手段２３,２４により検知された以後の適宜のタイ
ミングで、前記搬出コンベヤ１６が停止すると共に、前
記平行スライド機構のクラッチ・ブレーキ付モータ３７
のクラッチがオンおよびブレーキがオフされて両シール
バー２５,２６は相互に近接移動する。As the front end of the cake 12 is further conveyed while holding the film F, as shown in FIG.
The film F is fed from the film roll 20 by the roll body 85. Then, at a proper timing after the rear end portion of the cake 12 is detected by the light projecting / receiving means 23, 24, the carry-out conveyor 16 is stopped, and the motor 37 with the clutch / brake of the parallel slide mechanism.
The clutch is turned on and the brake is turned off, and the seal bars 25 and 26 move closer to each other.

【００３６】前記スライド機構による両シールバー２
５,２６の近接動作中に、フィルムロール２０から繰出
された夫々のフィルムＦは、前記案内板４９,４９によ
りケーキ１２の側面に緩徐に圧接され、最終的に両シー
ルバー２５,２６により両フィルムＦ,Ｆの溶着および切
断がなされる(図１１参照)。すなわち、前述した如く、
受け側シールバー２６のシール面９２が平面に形成され
ると共に、シール側シールバー２５のシール部９６は尖
った刃先９７を有しているので、シール面９２と刃先９
７とがフィルムＦを挟んで当接することにより、該フィ
ルムＦを確実に切断することができる。またケーキ１２
の供給側におけるフィルムＦは、搬出側より広い溶着領
域が得られるうえに、第１傾斜面９８とシール面９２と
により所要幅で溶着されるから、溶断シール後のフィル
ムＦがシール個所から剥がれるのも確実に防止される。
また、シール側シールバー２５におけるケーキ搬出側で
は、第３傾斜面１００とフィルム断面の接触面積は供給
側より少ないため、シールバーとフィルムの溶着が少な
くなってフィルムＦの切離しが良好となる。Both seal bars 2 by the slide mechanism
During the proximity operation of 5, 26, the respective films F fed out from the film roll 20 are gently pressed against the side surfaces of the cake 12 by the guide plates 49, 49, and finally by both seal bars 25, 26. The films F, F are welded and cut (see FIG. 11). That is, as described above,
Since the sealing surface 92 of the receiving side seal bar 26 is formed into a flat surface and the sealing portion 96 of the sealing side seal bar 25 has the sharpened cutting edge 97, the sealing surface 92 and the cutting edge 9 are formed.
The film F can be reliably cut by contacting the film F with the film F sandwiched therebetween. Again cake 12
The film F on the supply side of F is obtained with a wider welding area than that on the unloading side, and is welded with a required width by the first inclined surface 98 and the sealing surface 92. Therefore, the film F after the fusing seal is peeled from the sealing portion. Is also reliably prevented.
Further, on the cake unloading side of the seal-side seal bar 25, the contact area between the third inclined surface 100 and the film cross section is smaller than that on the supply side, so welding of the seal bar and the film is reduced and separation of the film F is improved.

【００３７】またシール側シールバー２５のシール部９
６には、図７に示す如く、前記刃先９７が所要長さに亘
ってケーキ搬送方向(矢印で示す方向)と逆方向に所要角
度で折曲された折曲部９７ａが形成されているから、フ
ィルムＦの胴巻き包装が終了したケーキ１２のフィルム
前端部側の溶断シール線に一致する上端部にＶ形切欠部
９１が形成される(図１２参照)。すなわち、溶断シール
した直後のフィルムＦには、前記折曲部９７ａと対応す
る上端部に斜めにシール部が形成されており、該フィル
ムＦにテンションを付与する過程で、斜めのシール部を
左右両側に引張る力がその上端から加わることによりシ
ール部が裂け始め、Ｖ字下端で裂けるのが止まることに
よりＶ形切欠部９１が形成される。なお、Ｖ形切欠部９
１の下方に連続する垂直なシール部は、テンションの付
与時にはシール線に直角方向でかつその全体に力が加わ
るので、Ｖ字下端から裂けることはない。これによりケ
ーキ１２に胴巻きされたフィルムＦの開封に際しては、
その開封個所を容易に視認し得ると共に、溶断シール線
と一致するＶ形切欠部９１から該フィルムＦを切裂いて
簡単に開封し得る。The seal portion 9 of the seal side seal bar 25
As shown in FIG. 7, the cutting edge 97 has a bent portion 97a formed by bending the cutting edge 97 in a direction opposite to the cake conveying direction (direction indicated by an arrow) at a required angle, as shown in FIG. A V-shaped notch 91 is formed at the upper end of the cake 12 after the film F has been wrapped and wrapped, the upper end corresponding to the fusing seal line on the front end of the film (see FIG. 12). That is, the film F immediately after the fusion-sealing has a diagonal seal portion formed at the upper end portion corresponding to the bent portion 97a, and in the process of applying tension to the film F, the diagonal seal portion is left and right. A V-shaped notch 91 is formed by applying a pulling force to both sides from the upper end of the V-shaped notch 91, and the seal portion starts to tear and the V-shaped lower end stops tearing. The V-shaped notch 9
The vertical seal portion continuing to the lower part of 1 does not tear from the V-shaped lower end because a force is applied to the seal line in a direction perpendicular to the seal line and the whole thereof when tension is applied. As a result, when opening the film F wrapped around the cake 12,
The opening can be easily visually recognized, and the film F can be easily opened by tearing the film F from the V-shaped notch 91 that coincides with the fusing seal line.

【００３８】図２に関連して先に説明した検知手段４５
により、両シールバー２５,２６がシール位置に達した
ことを検知したことを条件として、前記搬出コンベヤ１
６によるケーキ１２の搬送を再開する。このとき、テン
ション付与手段における揺動機構が作動し、テンション
ローラ５２,５２は供給コンベヤ１５から離間する第１
位置に向けて移動される。また前記モータ８４が逆転駆
動され、フィルム繰出し経路中に弛んだ状態で臨むフィ
ルムＦをフィルムロール２０に巻戻し、該フィルムＦに
よりテンションローラ５２,５２が第２位置側に移動す
ることを検知したことを条件として、前記モータ８４が
停止制御される。これにより、フィルム繰出し経路中に
位置するフィルムＦ,Ｆに所要のテンションが付与され
る。このとき、前記供給コンベヤ１５上に張設されるフ
ィルムＦ,Ｆの先端は所要幅で溶着されているから、テ
ンションが付与される際にシール部から剥がれることは
ない。The detection means 45 previously described with reference to FIG.
With the condition that both seal bars 25 and 26 have reached the seal position, the carry-out conveyor 1
The conveyance of the cake 12 by 6 is restarted. At this time, the swinging mechanism in the tension applying means operates, and the tension rollers 52, 52 are separated from the supply conveyor 15 by the first roller.
Moved to a position. Further, the motor 84 is driven in the reverse direction to rewind the film F facing the film feeding path in a loose state onto the film roll 20, and it is detected that the tension rollers 52, 52 are moved to the second position side by the film F. Under the condition, the motor 84 is stop-controlled. As a result, a required tension is applied to the films F, F located in the film feeding path. At this time, since the leading ends of the films F, F stretched on the supply conveyor 15 are welded to each other with a required width, they are not peeled off from the seal portion when tension is applied.

【００３９】前記両シールバー２５,２６が開放した原
点位置に達したことを検知手段４４が検知すると、前記
平行スライド機構の駆動モータ３７のクラッチがオフお
よびブレーキがオン作動することにより、ワンサイクル
での両シール部材の作動を停止する。なお、ケーキ１２
の寸法変更等に伴ってフィルムＦの幅寸法(ケーキ搬送
面からの高さ寸法)が変更された場合は、前記ホルダ４
８を取付板３１に対して高さ調節してシール側シールバ
ー２５の折曲部９７ａの位置を、フィルムＦの対応個所
に臨ませることにより、フィルムＦの溶断シール線に一
致する上端部に常にＶ形切欠部９１を形成することがで
きる。When the detection means 44 detects that the seal bars 25, 26 have reached the open origin position, the clutch of the drive motor 37 of the parallel slide mechanism is turned off and the brake is turned on, whereby one cycle is completed. Stop the operation of both seal members. The cake 12
When the width dimension of the film F (height dimension from the cake conveying surface) is changed due to the dimension change of the holder 4 or the like,
8 is adjusted with respect to the mounting plate 31 so that the position of the bent portion 97a of the seal-side seal bar 25 faces the corresponding portion of the film F, so that the upper end portion of the film F that coincides with the fusing seal line is The V-shaped notch 91 can always be formed.

【００４０】実施例では前記シール側シールバー２５の
シール部９６において、折曲部９７ａと対応する位置に
も第１傾斜面９８を形成したが、該部分においては第１
傾斜面９８を省略するようにしてもよい。すなわち、折
曲部９７ａにより斜めに溶断シールされたフィルムＦの
上端部のシール強度を低くすることで、フィルムＦにテ
ンションを付与した際に該部位が容易に開放してＶ形切
欠部９１が形成されるようになる。In the embodiment, in the seal portion 96 of the seal side seal bar 25, the first inclined surface 98 is also formed at the position corresponding to the bent portion 97a, but the first inclined surface 98 is formed in that portion.
The inclined surface 98 may be omitted. That is, by lowering the sealing strength of the upper end portion of the film F that is obliquely melt-sealed by the bent portion 97a, the portion is easily opened when tension is applied to the film F, and the V-shaped notch 91 is formed. Will be formed.

【００４１】[0041]

【発明の効果】以上説明した如く、本発明に係る胴巻き
包装装置におけるフィルムの溶断シールバーによれば、
受け側シールバーのシール面を平面とすると共に、シー
ル側シールバーのシール部に尖った刃先を形成したの
で、フィルムの確実な切断を達成し得る。またシール部
における物品供給側の面に刃先から微小距離離れた点ま
での第１傾斜面とそれに連続するシール面から離間する
第２傾斜面を形成し、θ2＜θ3と設定したから、物品供
給側のフィルムは物品搬出側より広い溶着領域が得られ
るうえに、第１傾斜面とシール面とにより所要幅で溶着
して充分なシール強度のシールが得られる。従って、溶
断シール後にフィルムにテンションを与える場合であっ
ても、フィルムがシール個所から剥がれるのを防止する
ことができる。なお、シール側シールバーの物品搬出側
では、第３傾斜面とフィルム断面との接触面積は物品供
給側より少なくなるようθ1＜θ3およびθ2＜θ3と設定
されているから、シールバーとフィルムの溶着も少なく
なって、フィルムの切離しが一層良好となり、連包状態
の包装不良品が製造されるのを未然に防止し得る。また
シールバー方式であるので、両シールバーの各当接部分
の損耗も少なく、長期に亘っての安定した溶断シールを
達成し得る利点もある。As described above, according to the film fusing seal bar in the body-wrapping device according to the present invention,
Since the sealing surface of the receiving side seal bar is made flat and the sharp edge is formed at the sealing portion of the sealing side seal bar, reliable cutting of the film can be achieved. Further, on the article supply side surface of the seal portion, a first inclined surface up to a point a minute distance from the cutting edge and a second inclined surface separated from the continuous seal surface are formed, and since θ 2 <θ 3 is set, The film on the article supply side can have a wider welding area than the article unloading side, and can also be welded with a required width by the first inclined surface and the sealing surface to obtain a seal having sufficient sealing strength. Therefore, even when tension is applied to the film after fusing and sealing, it is possible to prevent the film from peeling off from the sealing portion. It should be noted that θ 1 <θ 3 and θ 2 <θ 3 are set on the article unloading side of the seal side seal bar so that the contact area between the third inclined surface and the film cross section is smaller than that on the article supply side. The welding of the bar and the film is also reduced, the separation of the film is further improved, and it is possible to prevent the production of defective packaging products in a continuous packaging state. Further, since the seal bar system is used, there is little wear of each contact portion of both seal bars, and there is an advantage that a stable fusing seal can be achieved for a long period of time.

【００４２】ここで、ケーキのように軟弱や軽量の物品
を胴巻き包装する際にフィルムを溶断シールした後にテ
ンションを与える場合、溶断シールをするときにフィル
ムの切離しが完全に行なわれない状態でフィルムにテン
ションを与えると、胴巻きされたケーキが、切離しが行
なわれなかったフィルムと共に引張られてケーキの形を
損ね、商品価値を低下させるおそれがあった。しかるに
本発明の溶断シールバーでは、溶断シール時におけるフ
ィルムの切離しを確実に行ない得るので、軟弱物品や軽
量物品の包装に際してフィルムにテンションを付与する
包装装置にも好適に使用することが可能となる。また、
物品を胴巻きしたフィルムを開封するときには、溶断シ
ール線と一致するフィルム端部のＶ形切欠部より容易に
切裂いて開封することができる。Here, in the case where a soft or lightweight article such as a cake is wrapped in a body and tension is applied after the film is fusion-sealed, the film is not completely separated when the fusion-sealing is performed. If a tension is applied to the film, the body-wrapped cake may be pulled together with the film that has not been separated, impairing the shape of the cake, and reducing the commercial value. However, in the fusing seal bar of the present invention, since the film can be reliably separated at the time of fusing and sealing, it can be suitably used for a packaging device that applies tension to the film when packaging a soft article or a lightweight article. . Also,
When the film in which the article is wrapped around is opened, the film can be easily torn and opened from the V-shaped notch at the end of the film which coincides with the fusing seal line.

【図面の簡単な説明】[Brief description of drawings]

【図１】 実施例に係る包装装置の平面図である。FIG. 1 is a plan view of a packaging device according to an embodiment.

【図２】 シール手段の概略構成を示す斜視図である。FIG. 2 is a perspective view showing a schematic configuration of sealing means.

【図３】 図２に示すシール機構をケーキの搬出側から
視た状態で示す正面図である。FIG. 3 is a front view showing the sealing mechanism shown in FIG. 2 as viewed from the carry-out side of the cake.

【図４】 シール側シールバーと受け側シールバーと
を、ケーキの供給側から視た状態で示す斜視図である。FIG. 4 is a perspective view showing the seal-side seal bar and the receiving-side seal bar as viewed from the cake supply side.

【図５】 シール側シールバーと受け側シールバーを示
す平面図である。FIG. 5 is a plan view showing a seal side seal bar and a receiving side seal bar.

【図６】 シール側シールバーと受け側シールバーと
を、ケーキの供給側から視た状態で示す側面図である。FIG. 6 is a side view showing the seal-side seal bar and the receiving-side seal bar as viewed from the cake supply side.

【図７】 シール側シールバーの正面図である。FIG. 7 is a front view of a seal bar on the seal side.

【図８】 シール側シールバーの図６におけるＡ−Ａ線
断面図である。8 is a cross-sectional view of the seal-side seal bar taken along the line AA in FIG.

【図９】 シール側シールバーの図６におけるＢ−Ｂ線
断面図である。9 is a cross-sectional view of the seal bar on the BB line in FIG.

【図１０】 実施例に係る包装装置の動作を経時的に示
す説明図である。FIG. 10 is an explanatory diagram showing the operation of the packaging device according to the embodiment over time.

【図１１】 実施例に係る包装装置の動作を経時的に示
す説明図である。FIG. 11 is an explanatory diagram showing the operation of the packaging device according to the embodiment over time.

【図１２】 実施例に係る包装装置により包装されたケ
ーキを示す斜視図である。FIG. 12 is a perspective view showing a cake packaged by the packaging device according to the embodiment.

【符号の説明】[Explanation of symbols]

１２ ケーキ，１５ 供給コンベヤ，１６ 搬出コンベヤ ２５ シール側シールバー，２６ 受け側シールバー，９
２ シール面 ９６ シール部，９７ 刃先，９７ａ 折曲部，９８ 第１
傾斜面 ９９ 第２傾斜面，１００ 第３傾斜面，Ｆ フィルム，
α 点 θ1 第１傾斜面とシール面とのなす角度 θ2 第２傾斜面とシール面とのなす角度 θ3 第３傾斜面とシール面とのなす角度12 cake, 15 supply conveyor, 16 carry-out conveyor 25 seal side seal bar, 26 receiving side seal bar, 9
2 sealing surface 96 sealing portion, 97 cutting edge, 97a bent portion, 98 1st
Inclined surface 99 second inclined surface, 100 third inclined surface, F film,
α Point θ 1 Angle between first inclined surface and sealing surface θ 2 Angle between second inclined surface and sealing surface θ 3 Angle between third inclined surface and sealing surface

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 物品(12)の搬送路を横断する方向に張設
されたフィルム(F)に向けて物品(12)を供給し、該物品
(12)の前進と共に引出されたフィルム(F)を物品(12)に
胴巻きした後、物品後端部においてフィルム(F)を挟ん
で溶断シールする胴巻き包装装置におけるフィルムの溶
断シールバーであって、 前記フィルム(F)を挟んで受け側となる一方のシールバ
ー(26)は、そのシール面(92)が平面に形成され、 前記フィルム(F)を挟んでシール側となる他方のシール
バー(25)は、そのシール部(96)が尖った刃先(97)を有
し、 前記シール部(96)における物品供給側の面は、刃先(97)
から微小距離離れた点(α)まで一定角度で傾斜する第１
傾斜面(98)および該点(α)から端部まで受け側シールバ
ー(26)のシール面(92)から離間する方向に一定角度で傾
斜する第２傾斜面(99)からなり、また物品搬出側の面は
刃先(97)から端部まで一定角度で傾斜する第３傾斜面(1
00)で構成され、 前記受け側シールバー(26)とシール側シールバー(25)と
のシール状態で、前記第１傾斜面(98)と受け側シールバ
ー(26)のシール面(92)とがなす角度(θ1)は、前記第３
傾斜面(100)とシール面(92)とがなす角度(θ3)より小さ
く設定されると共に、前記第２傾斜面(99)と受け側シー
ルバー(26)のシール面(92)とがなす角度(θ2)は、前記
第３傾斜面(100)とシール面(92)とがなす角度(θ3)より
小さく設定されていることを特徴とする胴巻き包装装置
におけるフィルムの溶断シールバー。1. An article (12) is fed toward a film (F) stretched in a direction traversing a conveying path of the article (12), and the article (12) is supplied.
(12) After the film (F) pulled out with the advance of the article is wrapped around the article (12), the film (F) is sandwiched at the rear end of the article to melt and seal the film. The one seal bar (26) on the receiving side across the film (F) has a sealing surface (92) formed into a flat surface, and the other seal bar on the seal side across the film (F). (25), the seal part (96) has a sharp cutting edge (97), the surface of the seal part (96) on the article supply side is a cutting edge (97).
From a point (α) that is a small distance from
An inclined surface (98) and a second inclined surface (99) inclined at a constant angle in a direction away from the sealing surface (92) of the receiving side seal bar (26) from the point (α) to the end, and an article. The surface on the unloading side is the third inclined surface (1
00), the first inclined surface (98) and the sealing surface (92) of the receiving side seal bar (26) in the sealed state of the receiving side seal bar (26) and the sealing side seal bar (25). The angle formed by and (θ 1 ) is the third
The angle (θ 3 ) formed by the inclined surface (100) and the sealing surface (92) is set smaller, and the second inclined surface (99) and the sealing surface (92) of the receiving side seal bar (26) are The angle (θ 2 ) formed is set to be smaller than the angle (θ 3 ) formed by the third inclined surface (100) and the sealing surface (92). . 【請求項２】 フィルム包装されるべき所要形状のケー
キ(12)を搬送する供給コンベヤ(15)と、この供給コンベ
ヤ(15)の下流側に配設したケーキ搬出コンベヤ(16)と、
前記ケーキ供給コンベヤ(15)の下流側において、供給源
からケーキ搬送ラインを横断する方向にフィルム(F)を
供給し、これを搬送面に対して垂直に張設するフィルム
供給手段と、前記フィルム(F)の張設位置の下流におい
て前記ケーキ(12)の搬送中心に向けて相互に近接離間移
動可能な一対の溶断シールバー(25,26)を有し、ケーキ
(12)が張設位置を通過したタイミングに応じて前記供給
源から供給したフィルム(F)を物品(12)の後端部で垂直
に溶断シールするシール手段とを備えたケーキの胴巻き
包装装置における溶断シールバーであって、 前記フィルム(F)を挟んで受け側となる一方のシールバ
ー(26)は、そのシール面(92)が平面に形成され、 前記フィルム(F)を挟んでシール側となる他方のシール
バー(25)は、そのシール部(96)が尖った刃先(97)を有
し、 前記シール部(96)におけるケーキ供給側の面は、刃先(9
7)から微小距離離れた点(α)まで一定角度で傾斜する第
１傾斜面(98)および該点(α)から端部まで受け側シール
バー(26)のシール面(92)から離間する方向に一定角度で
傾斜する第２傾斜面(99)からなり、またケーキ搬出側の
面は刃先(97)から端部まで一定角度で傾斜する第３傾斜
面(100)で構成され、 前記受け側シールバー(26)とシール側シールバー(25)と
のシール状態で、前記第１傾斜面(98)と受け側シールバ
ー(26)のシール面(92)とがなす角度(θ1)は、前記第３
傾斜面(100)とシール面(92)とがなす角度(θ3)より小さ
く設定されると共に、前記第２傾斜面(99)と受け側シー
ルバー(26)のシール面(92)とがなす角度(θ2)は、前記
第３傾斜面(100)とシール面(92)とがなす角度(θ3)より
小さく設定されていることを特徴とする胴巻き包装装置
におけるフィルムの溶断シールバー。2. A supply conveyor (15) for conveying a cake (12) of a desired shape to be film-wrapped, and a cake unloading conveyor (16) arranged on the downstream side of the supply conveyor (15).
On the downstream side of the cake supply conveyor (15), a film supply means for supplying a film (F) from a supply source in a direction crossing the cake transfer line, and stretching the film vertically to the transfer surface, and the film. (F) has a pair of fusing seal bars (25, 26) that can move close to and away from each other toward the transport center of the cake (12) downstream of the tension position, and the cake
(12) a cake-wrapping device having a sealing means for vertically fusing and sealing the film (F) supplied from the supply source at the rear end of the article (12) in accordance with the timing when the passing position has passed. In the fusing seal bar in, the one seal bar (26) on the receiving side with the film (F) sandwiched therebetween has a sealing surface (92) formed into a flat surface, and the film (F) is sandwiched between them. The other side seal bar (25) has a sharp cutting edge (97) at its sealing portion (96), and the surface on the cake supply side of the sealing portion (96) has a cutting edge (9).
The first inclined surface (98) that inclines at a constant angle from the point 7) to a point (α) that is a minute distance away from the point (α) and the end surface from the point (α) is separated from the sealing surface (92) of the receiving side seal bar (26). The second inclined surface (99) that inclines at a constant angle in the direction, and the surface on the cake discharge side comprises a third inclined surface (100) that inclines at a constant angle from the blade edge (97) to the end. The angle (θ 1 ) formed by the first inclined surface (98) and the seal surface (92) of the receiving side seal bar (26) in the sealed state of the side seal bar (26) and the seal side seal bar (25). Is the third
The angle (θ 3 ) formed by the inclined surface (100) and the sealing surface (92) is set smaller, and the second inclined surface (99) and the sealing surface (92) of the receiving side seal bar (26) are The angle (θ 2 ) formed is set to be smaller than the angle (θ 3 ) formed by the third inclined surface (100) and the sealing surface (92). . 【請求項３】 前記シール側シールバー(25)のシール部
(96)は、前記刃先(97)の連続する端部で、該刃先(97)が
物品(12)またはケーキ(12)の搬送方向とは逆方向に折曲
された折曲部(97a)を有する請求項１または２記載の胴
巻き包装装置におけるフィルムの溶断シールバー。3. The seal portion of the seal-side seal bar (25)
(96) is a continuous end portion of the blade edge (97), the blade edge (97) is a bent portion (97a) bent in the opposite direction to the conveying direction of the article (12) or the cake (12). The fusing seal bar for a film in the body wrapping apparatus according to claim 1 or 2, further comprising:
JP5976195A 1995-02-22 1995-02-22 Fusing seal bar for film in body-wrap packaging equipment Expired - Fee Related JP2916670B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5976195A JP2916670B2 (en) 1995-02-22 1995-02-22 Fusing seal bar for film in body-wrap packaging equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5976195A JP2916670B2 (en) 1995-02-22 1995-02-22 Fusing seal bar for film in body-wrap packaging equipment

Publications (2)

Publication Number Publication Date
JPH08230837A true JPH08230837A (en) 1996-09-10
JP2916670B2 JP2916670B2 (en) 1999-07-05

Family

ID=13122582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5976195A Expired - Fee Related JP2916670B2 (en) 1995-02-22 1995-02-22 Fusing seal bar for film in body-wrap packaging equipment

Country Status (1)

Country Link
JP (1) JP2916670B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020007001A (en) * 2018-07-09 2020-01-16 多賀電気株式会社 Ultrasonic film packaging device
WO2023239780A1 (en) * 2022-06-08 2023-12-14 Conagra Foods Rdm, Inc. Fluorochemical-free microwave popcorn package and production process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020007001A (en) * 2018-07-09 2020-01-16 多賀電気株式会社 Ultrasonic film packaging device
WO2023239780A1 (en) * 2022-06-08 2023-12-14 Conagra Foods Rdm, Inc. Fluorochemical-free microwave popcorn package and production process

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Publication number Publication date
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