JP6258691B2 - Bag making and packaging machine - Google Patents

Bag making and packaging machine Download PDF

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Publication number
JP6258691B2
JP6258691B2 JP2013261471A JP2013261471A JP6258691B2 JP 6258691 B2 JP6258691 B2 JP 6258691B2 JP 2013261471 A JP2013261471 A JP 2013261471A JP 2013261471 A JP2013261471 A JP 2013261471A JP 6258691 B2 JP6258691 B2 JP 6258691B2
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Prior art keywords
horn
anvil
support
support member
film
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JP2013261471A
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JP2015117037A (en
Inventor
市川 誠
誠 市川
崇史 下田
崇史 下田
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Ishida Co Ltd
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Ishida Co Ltd
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Priority to JP2013261471A priority Critical patent/JP6258691B2/en
Priority to PCT/JP2014/071041 priority patent/WO2015093092A1/en
Publication of JP2015117037A publication Critical patent/JP2015117037A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/087Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using both a rotary sonotrode and a rotary anvil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining 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
    • B29C65/745Joining 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 a single unit having both a severing tool and a welding tool
    • B29C65/7451Joining 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 a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/431Joining the articles to themselves
    • B29C66/4312Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81411General 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
    • B29C66/81415General 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
    • B29C66/81419General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81431General 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 comprising a single cavity, e.g. a groove
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8145General 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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8145General 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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463General 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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8223Worm or spindle mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824Actuating mechanisms
    • B29C66/8246Servomechanisms, e.g. servomotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/849Packaging machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/26Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306Counter-rotating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014Tube advancing means
    • B65B9/2028Rollers or belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/432Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Description

本発明は、製袋包装機に関する。   The present invention relates to a bag making and packaging machine.

従来、袋を形成しながら、食品等の被包装物をその袋に充填して密閉包装する製袋包装機として、超音波シール方式を用いる製袋包装機が用いられている。この製袋包装機は、シート状のフィルムである包材をフォーマーおよびチューブによって筒状(チューブ状)に成形し、チューブ状の包材の重なり合った縦方向の縁をシールする。そして、被包装物をチューブ状の包材の内部に充填して、超音波シール機構により袋の上部と袋の下部とを横方向に超音波シールした後、シールされた部分の中央をカッターで切断する。   2. Description of the Related Art Conventionally, a bag making and packaging machine using an ultrasonic sealing method has been used as a bag making and packaging machine that forms a bag and fills the bag with an object to be packaged such as food and seals it. This bag making and packaging machine forms a wrapping material, which is a sheet-like film, into a tubular shape (tube shape) with a former and a tube, and seals the overlapping vertical edges of the tubular wrapping material. Then, after filling the inside of the tube-shaped packaging material and ultrasonically sealing the upper part of the bag and the lower part of the bag in the lateral direction by an ultrasonic sealing mechanism, the center of the sealed part is cut with a cutter. Disconnect.

超音波シール機構は、ホーンおよびアンビルによって包材を挟み、ホーンを超音波振動させて包材をシールする。例えば、特許文献1(国際公開第2007/012917号)に開示されている超音波シール機構では、一対の回転体のそれぞれにホーンおよびアンビルが取り付けられ、ホーンおよびアンビルは、回転しながら、筒状の包材の搬送方向と直交する方向に沿って包材を挟み込んで超音波シールする。   The ultrasonic sealing mechanism sandwiches the packaging material between the horn and the anvil, and ultrasonically vibrates the horn to seal the packaging material. For example, in the ultrasonic sealing mechanism disclosed in Patent Document 1 (International Publication No. 2007/012917), a horn and an anvil are attached to each of a pair of rotating bodies, and the horn and the anvil are cylindrical while rotating. The packaging material is sandwiched along the direction orthogonal to the conveying direction of the packaging material and ultrasonically sealed.

しかし、従来、ホーンは、ホーン本体と、ホーン本体から延びる複数の支持部とから構成され、複数の支持部は、共通の加圧部材に固定されている。超音波シール機構のシール動作時には、加圧部材の両端部に力を加えることで、ホーンがアンビルに向かって押されて、包材が挟み込まれる。このとき、両端部に加えられる力によって加圧部材が撓むと、支持部を介してホーンの両端部も加圧されて、ホーンも撓む場合がある。その結果、超音波シール機構のシール動作時において、ホーンとアンビルとが接触して、袋のシール性および耐久性が低下するおそれがある。   However, conventionally, a horn is composed of a horn body and a plurality of support portions extending from the horn body, and the plurality of support portions are fixed to a common pressure member. During the sealing operation of the ultrasonic sealing mechanism, a force is applied to both ends of the pressure member, so that the horn is pushed toward the anvil and the packaging material is sandwiched. At this time, if the pressure member is bent by the force applied to both ends, both ends of the horn are also pressed through the support portion, and the horn may be bent. As a result, at the time of the sealing operation of the ultrasonic sealing mechanism, the horn and the anvil may come into contact with each other, and the sealing performance and durability of the bag may be reduced.

本発明の目的は、超音波シールに用いられるホーンとアンビルとの接触を防止することができる製袋包装機を提供することである。   An object of the present invention is to provide a bag making and packaging machine capable of preventing contact between a horn and an anvil used for ultrasonic sealing.

本発明に係る製袋包装機は、チューブ状の包材に被包装物を充填して密封する。この製袋包装機は、超音波シール機構と、ホーン支持体と、加圧部とを備える。超音波シール機構は、ホーンおよびアンビルで包材を挟み、包材に超音波振動を与えて包材を幅方向にシールする。ホーン支持体は、ホーンを支持する。加圧部は、ホーン支持体を加圧して、ホーンをアンビルに向かって押す。ホーンは、ホーン本体と、複数の支持部とを有する。ホーン本体は、アンビルと共に包材を挟む。複数の支持部は、ホーン本体から延び、幅方向に配列される。ホーン支持体は、第1支持部材と、第2支持部材と、連結部材とを有する。第1支持部材は、複数の支持部が固定される。第2支持部材は、加圧部によって両端部が加圧される。連結部材は、第1支持部材の中央部である第1中央部と、第2支持部材の中央部である第2中央部とを連結する。第1中央部は、幅方向の両端の支持部が固定される一対の固定部の間に位置する。   The bag making and packaging machine according to the present invention fills a tube-shaped packaging material with an article to be packaged and seals it. This bag making and packaging machine includes an ultrasonic sealing mechanism, a horn support, and a pressure unit. The ultrasonic sealing mechanism sandwiches the packaging material with a horn and an anvil and applies ultrasonic vibration to the packaging material to seal the packaging material in the width direction. The horn support supports the horn. The pressurizing unit pressurizes the horn support and pushes the horn toward the anvil. The horn has a horn main body and a plurality of support portions. The horn body sandwiches the packaging material with the anvil. The plurality of support portions extend from the horn body and are arranged in the width direction. The horn support includes a first support member, a second support member, and a connecting member. A plurality of support portions are fixed to the first support member. Both ends of the second support member are pressurized by the pressure unit. A connection member connects the 1st center part which is the center part of the 1st support member, and the 2nd center part which is the center part of the 2nd support member. The first center part is located between a pair of fixing parts to which support parts at both ends in the width direction are fixed.

本発明に係る製袋包装機では、ホーン支持体は、ホーン本体から延びる複数の支持部に連結される第1支持部材と、超音波シール時に両端部が加圧される第2支持部材とを有する。第1支持部材は、第2支持部材と連結部材を介して連結されている。超音波シール時にホーンをアンビルに向かって押す際に、第2支持部材の両端部は加圧部によって加圧されるが、第1支持部材は加圧部によって直接加圧されない。そのため、超音波シール時において、第1支持部材は、ホーン支持体の加圧によって撓みにくい。第1支持部材が撓みにくいので、第1支持部材から支持部を介して力が加えられるホーン本体も撓みにくい。そのため、この製袋包装機は、超音波シール時においてホーンの両端部がアンビルと接触することを回避することができる。従って、本発明に係る製袋包装機は、超音波シールに用いられるホーンとアンビルとの接触を防止することができる。   In the bag making and packaging machine according to the present invention, the horn support includes a first support member connected to a plurality of support portions extending from the horn body, and a second support member whose both ends are pressurized during ultrasonic sealing. Have. The first support member is connected to the second support member via a connection member. When pushing the horn toward the anvil during ultrasonic sealing, both end portions of the second support member are pressurized by the pressurizing unit, but the first support member is not directly pressurized by the pressurizing unit. Therefore, at the time of ultrasonic sealing, the first support member is difficult to bend due to pressurization of the horn support. Since the first support member is difficult to bend, the horn body to which force is applied from the first support member via the support portion is also difficult to bend. Therefore, this bag making packaging machine can avoid that the both ends of a horn contact an anvil at the time of ultrasonic sealing. Therefore, the bag making and packaging machine according to the present invention can prevent contact between the horn and the anvil used for ultrasonic sealing.

本発明に係る製袋包装機では、第1中央部は、ホーンおよびアンビルに挟まれている包材よりも小さい幅を有することが好ましい。   In the bag making and packaging machine according to the present invention, the first central portion preferably has a smaller width than the packaging material sandwiched between the horn and the anvil.

本発明に係る製袋包装機は、超音波シールに用いられるホーンとアンビルとの接触を防止することができる。   The bag making and packaging machine according to the present invention can prevent contact between a horn and an anvil used for ultrasonic sealing.

本発明の一実施形態である製袋包装機の斜視図である。It is a perspective view of the bag making packaging machine which is one embodiment of the present invention. 製袋包装ユニットの概略的な構成を示す斜視図である。It is a perspective view which shows schematic structure of a bag making packaging unit. 横シール機構の概略的な側面図である。It is a schematic side view of a horizontal seal mechanism. ホーンおよびアンビルの軌跡を表す図である。It is a figure showing the locus | trajectory of a horn and an anvil. 第1回転体および第2回転体の斜視図である。It is a perspective view of a 1st rotary body and a 2nd rotary body. 第1ホーンおよびその周辺部材の斜視図である。It is a perspective view of the 1st horn and its peripheral member. ホーンユニットの平面図である。It is a top view of a horn unit. 図7の線分VIII−VIIIにおける断面図である。It is sectional drawing in line segment VIII-VIII of FIG. 図7の線分IX−IXにおける断面図である。It is sectional drawing in line segment IX-IX of FIG. ホーン支持体の概略的な平面図である。It is a schematic plan view of a horn support. 第1回転体の電力供給機構の電気的接続状態の模式図である。It is a schematic diagram of the electrical connection state of the electric power supply mechanism of a 1st rotary body. 比較例としての、従来のホーン支持体の概略的な平面図である。It is a schematic top view of the conventional horn support body as a comparative example. 変形例Aにおける、ホーン支持体の概略的な平面図である。FIG. 11 is a schematic plan view of a horn support in Modification A. 変形例Bにおける、ホーン支持体の概略的な平面図である。FIG. 10 is a schematic plan view of a horn support in Modification B.

本発明の実施形態について、図面を参照しながら説明する。以下に説明される実施形態は、本発明の具体例の一つであって、本発明の技術的範囲を限定するものではない。   Embodiments of the present invention will be described with reference to the drawings. The embodiment described below is one specific example of the present invention, and does not limit the technical scope of the present invention.

(1)製袋包装機の構成
図1は、本発明の一実施形態である製袋包装機1の斜視図である。製袋包装機1は、食品等の被包装物を袋詰めするための機械である。製袋包装機1は、主として、組合せ計量ユニット2と、製袋包装ユニット3と、フィルム供給ユニット4とから構成される。
(1) Structure of bag making packaging machine FIG. 1: is a perspective view of the bag making packaging machine 1 which is one Embodiment of this invention. The bag making and packaging machine 1 is a machine for bagging articles to be packaged such as food. The bag making and packaging machine 1 mainly includes a combination weighing unit 2, a bag making and packaging unit 3, and a film supply unit 4.

組合せ計量ユニット2は、製袋包装ユニット3の上方に配置される。組合せ計量ユニット2は、被包装物の重量を複数の計量ホッパで計量し、所定の合計重量になるように各計量ホッパで計量された重量の値を組み合わせる。組合せ計量ユニット2は、組み合わせた所定の合計重量の被包装物を下方に排出して、製袋包装ユニット3に供給する。   The combination weighing unit 2 is disposed above the bag making and packaging unit 3. The combination weighing unit 2 measures the weight of an object to be packaged with a plurality of weighing hoppers, and combines the weight values measured by the respective weighing hoppers so as to be a predetermined total weight. The combination weighing unit 2 discharges the combined objects having a predetermined total weight downward and supplies them to the bag making and packaging unit 3.

製袋包装ユニット3は、組合せ計量ユニット2から被包装物が供給されるタイミングに合わせて、被包装物を袋の中に入れて、袋をシールする。製袋包装ユニット3の詳細な構成および動作については後述する。   The bag making and packaging unit 3 puts the package into the bag and seals the bag at the timing when the package is supplied from the combination weighing unit 2. The detailed configuration and operation of the bag making and packaging unit 3 will be described later.

フィルム供給ユニット4は、製袋包装ユニット3に隣接して設置され、袋に成形される包装用のフィルムを製袋包装ユニット3に供給する。フィルム供給ユニット4は、フィルムが巻かれたフィルムロールがセットされている。フィルムは、フィルムロールからフィルム供給ユニット4に繰り出される。   The film supply unit 4 is installed adjacent to the bag making and packaging unit 3 and supplies the packaging film formed into a bag to the bag making and packaging unit 3. The film supply unit 4 is set with a film roll around which a film is wound. The film is fed from the film roll to the film supply unit 4.

製袋包装機1は、その本体の前面に取り付けられている、操作スイッチ5および液晶ディスプレイ6を備える。液晶ディスプレイ6は、操作スイッチ5の操作者が視認できる位置に配置されている、タッチパネル式のディスプレイである。操作スイッチ5および液晶ディスプレイ6は、製袋包装機1に対する指示、および、製袋包装機1に関する設定を受け付ける入力装置として機能する。液晶ディスプレイ6は、製袋包装機1に関する情報を表示する出力装置として機能する。   The bag making and packaging machine 1 includes an operation switch 5 and a liquid crystal display 6 that are attached to the front surface of the main body. The liquid crystal display 6 is a touch panel display disposed at a position where the operator of the operation switch 5 can visually recognize. The operation switch 5 and the liquid crystal display 6 function as an input device that receives instructions for the bag making and packaging machine 1 and settings related to the bag making and packaging machine 1. The liquid crystal display 6 functions as an output device that displays information related to the bag making and packaging machine 1.

製袋包装機1は、その本体に内蔵されている制御部(図示せず)を備える。制御部は、CPU、ROMおよびRAM等から構成されるコンピュータである。制御部は、組合せ計量ユニット2、製袋包装ユニット3、フィルム供給ユニット4、操作スイッチ5および液晶ディスプレイ6に接続されている。制御部は、操作スイッチ5および液晶ディスプレイ6からの入力に基づいて、組合せ計量ユニット2、製袋包装ユニット3およびフィルム供給ユニット4を制御し、液晶ディスプレイ6に各種の情報を出力する。制御部は、組合せ計量ユニット2、製袋包装ユニット3およびフィルム供給ユニット4に取り付けられている各種センサから情報を取得し、その情報を各ユニットの制御に利用する。   The bag making and packaging machine 1 includes a control unit (not shown) built in its main body. The control unit is a computer including a CPU, a ROM, a RAM, and the like. The control unit is connected to the combination weighing unit 2, the bag making and packaging unit 3, the film supply unit 4, the operation switch 5, and the liquid crystal display 6. The control unit controls the combination weighing unit 2, the bag making and packaging unit 3, and the film supply unit 4 based on inputs from the operation switch 5 and the liquid crystal display 6, and outputs various information to the liquid crystal display 6. The control unit acquires information from various sensors attached to the combination weighing unit 2, the bag making and packaging unit 3, and the film supply unit 4, and uses the information for control of each unit.

(2)製袋包装ユニットの構成
図2は、製袋包装ユニット3の概略的な構成を示す斜視図である。以下の説明において、「前(正面)」、「後(背面)」、「上」、「下」、「左」および「右」からなる6つの方向を、図2に示されるように定義する。
(2) Configuration of Bag Making and Packaging Unit FIG. 2 is a perspective view showing a schematic configuration of the bag making and packaging unit 3. In the following description, six directions consisting of “front (front)”, “rear (back)”, “up”, “down”, “left” and “right” are defined as shown in FIG. .

製袋包装ユニット3は、主として、成形機構13と、プルダウンベルト機構14と、縦シール機構15と、横シール機構17と、横方向駆動機構55とから構成される。成形機構13は、フィルム供給ユニット4から搬送されてくるシート状のフィルムFを筒状に成形する。プルダウンベルト機構14は、筒状に成形されたフィルムFを下方に搬送する。縦シール機構15は、筒状に成形されたフィルムFの両端部の重なり部分を、搬送方向と平行な縦方向にシールして、筒状フィルムFcを形成する。横シール機構17は、筒状フィルムFcを、搬送方向と直交する横方向にシールして、上端部および下端部が横シールされた袋Bを形成する。横方向駆動機構55は、筒状フィルムFcの横シール時に、横シール機構17を往復運動させる。   The bag making and packaging unit 3 mainly includes a forming mechanism 13, a pull-down belt mechanism 14, a vertical sealing mechanism 15, a horizontal sealing mechanism 17, and a horizontal driving mechanism 55. The forming mechanism 13 forms the sheet-like film F conveyed from the film supply unit 4 into a cylindrical shape. The pull-down belt mechanism 14 conveys the film F formed into a cylindrical shape downward. The vertical sealing mechanism 15 seals the overlapping portion of both end portions of the film F formed into a cylindrical shape in the vertical direction parallel to the transport direction to form the cylindrical film Fc. The horizontal sealing mechanism 17 seals the tubular film Fc in the horizontal direction perpendicular to the transport direction, and forms a bag B in which the upper end and the lower end are horizontally sealed. The lateral drive mechanism 55 reciprocates the lateral seal mechanism 17 when the cylindrical film Fc is laterally sealed.

(2−1)成形機構
成形機構13は、チューブ13aとフォーマ13bとを有する。チューブ13aは、上端および下端が開口している、円筒形状の部材である。チューブ13aの上端の開口には、組合せ計量ユニット2から供給される被包装物Cが投入される。フォーマ13bは、チューブ13aを取り囲むように配置されている。フィルム供給ユニット4のフィルムロールから繰り出されてきたフィルムFは、チューブ13aとフォーマ13bとの間の隙間を通過する際に、チューブ13aに巻き付いて筒状に成形される。チューブ13aおよびフォーマ13bは、製造する袋Bの大きさに応じて取り替えることができる。
(2-1) Forming mechanism The forming mechanism 13 includes a tube 13a and a former 13b. The tube 13a is a cylindrical member having an open upper end and a lower end. An article C to be packaged supplied from the combination weighing unit 2 is put into the opening at the upper end of the tube 13a. The former 13b is disposed so as to surround the tube 13a. When the film F fed out from the film roll of the film supply unit 4 passes through the gap between the tube 13a and the former 13b, the film F is wound around the tube 13a and formed into a cylindrical shape. The tube 13a and the former 13b can be replaced according to the size of the bag B to be manufactured.

(2−2)プルダウンベルト機構
プルダウンベルト機構14は、チューブ13aに巻き付いたフィルムFを吸着しながら下方に搬送する。プルダウンベルト機構14は、主として、駆動ローラ14a、従動ローラ14bおよび一対のベルト14cを有する。一対のベルト14cは、図2に示されるように、チューブ13aの左右両側においてチューブ13aを挟むように配置され、筒状に成形されたフィルムFを吸着する機構を有する。プルダウンベルト機構14は、駆動ローラ14aおよび従動ローラ14bによって一対のベルト14cが回転駆動することで、筒状に成形されたフィルムFを下方に搬送する。
(2-2) Pull-down belt mechanism The pull-down belt mechanism 14 conveys the film F wound around the tube 13a downward while adsorbing it. The pull-down belt mechanism 14 mainly includes a driving roller 14a, a driven roller 14b, and a pair of belts 14c. As shown in FIG. 2, the pair of belts 14 c are arranged so as to sandwich the tube 13 a on both the left and right sides of the tube 13 a and have a mechanism for adsorbing the film F formed in a cylindrical shape. The pull-down belt mechanism 14 conveys the film F formed into a cylindrical shape downward by rotating the pair of belts 14c by the driving roller 14a and the driven roller 14b.

(2−3)縦シール機構
縦シール機構15は、筒状に成形されたフィルムFを縦方向(図2では、上下方向)にシールする。縦シール機構15は、チューブ13aの正面側に配置される。縦シール機構15は、駆動機構(図示せず)によって、チューブ13aに近づくように、あるいは、チューブ13aから遠ざかるように前後方向に移動する。
(2-3) Vertical Seal Mechanism The vertical seal mechanism 15 seals the film F formed in a cylindrical shape in the vertical direction (the vertical direction in FIG. 2). The vertical seal mechanism 15 is disposed on the front side of the tube 13a. The vertical seal mechanism 15 is moved in the front-rear direction so as to approach the tube 13a or away from the tube 13a by a drive mechanism (not shown).

縦シール機構15が駆動機構によってチューブ13aに近づくように駆動することで、チューブ13aに巻き付いたフィルムFの縦方向の重なり部分は、縦シール機構15とチューブ13aとの間に挟まれる。縦シール機構15は、駆動機構によってフィルムFの重なり部分を一定の圧力でチューブ13aに押し付けながら加熱して、フィルムFの重なり部分を縦方向にシールして、筒状フィルムFcを形成する。縦シール機構15は、フィルムFの重なり部分を加熱するヒータ、および、フィルムFの重なり部分と接触するヒータベルト等を有している。   When the vertical seal mechanism 15 is driven by the drive mechanism so as to approach the tube 13a, the vertical overlapping portion of the film F wound around the tube 13a is sandwiched between the vertical seal mechanism 15 and the tube 13a. The vertical sealing mechanism 15 heats the overlapping portion of the film F while pressing it against the tube 13a with a constant pressure by the driving mechanism, and seals the overlapping portion of the film F in the vertical direction to form the cylindrical film Fc. The vertical sealing mechanism 15 includes a heater that heats the overlapping portion of the film F, a heater belt that contacts the overlapping portion of the film F, and the like.

(2−4)横シール機構
横シール機構17は、筒状フィルムFcを横方向(図2では、左右方向)にシールする。横シール機構17は、成形機構13、プルダウンベルト機構14および縦シール機構15の下方に配置される。図3は、横シール機構17の概略的な側面図である。図3において、紙面に垂直な方向は、左右方向である。横シール機構17は、第1回転体50aおよび第2回転体50bを有する。図3の紙面内において、第1回転体50aは、筒状フィルムFcの左側に位置し、第2回転体50bは、筒状フィルムFcの右側に位置している。
(2-4) Horizontal Seal Mechanism The horizontal seal mechanism 17 seals the tubular film Fc in the horizontal direction (left and right direction in FIG. 2). The horizontal sealing mechanism 17 is disposed below the forming mechanism 13, the pull-down belt mechanism 14, and the vertical sealing mechanism 15. FIG. 3 is a schematic side view of the lateral seal mechanism 17. In FIG. 3, the direction perpendicular to the paper surface is the left-right direction. The horizontal seal mechanism 17 includes a first rotating body 50a and a second rotating body 50b. In the paper surface of FIG. 3, the first rotating body 50a is located on the left side of the tubular film Fc, and the second rotating body 50b is located on the right side of the tubular film Fc.

第1回転体50aは、第1ホーン51aおよび第2アンビル52aが取り付けられている。第2アンビル52aは、第1回転体50aの回転軸C1を中心に、第1ホーン51aから180度離れた位置に取り付けられている。第2回転体50bは、第1アンビル51bおよび第2ホーン52bが取り付けられている。第2ホーン52bは、第2回転体50bの回転軸C2を中心に、第1アンビル51bから180度離れた位置に取り付けられている。   The 1st horn 51a and the 2nd anvil 52a are attached to the 1st rotary body 50a. The second anvil 52a is attached at a position 180 degrees away from the first horn 51a with the rotation axis C1 of the first rotating body 50a as the center. The second rotating body 50b is provided with a first anvil 51b and a second horn 52b. The second horn 52b is attached at a position 180 degrees away from the first anvil 51b with the rotation axis C2 of the second rotating body 50b as the center.

図4は、第1回転体50aおよび第2回転体50bのホーン51a,52bおよびアンビル51b,52aの軌跡を表す図である。第1回転体50aは、駆動モータ(図示せず)によって回転軸C1を中心に回転する。第2回転体50bは、駆動モータ(図示せず)によって回転軸C2を中心に回転する。図4において二点鎖線で示されるように、第1ホーン51aおよび第2アンビル52aは、回転軸C1を中心にしてD字状に旋回し、第1アンビル51bおよび第2ホーン52bは、回転軸C2を中心にしてD字状に旋回する。第1回転体50aおよび第2回転体50bの回転によって、筒状フィルムFcは、第1ホーン51aおよび第1アンビル51bに挟み込まれ、第2ホーン52bおよび第2アンビル52aによって挟み込まれる。   FIG. 4 is a diagram illustrating the trajectories of the horns 51a and 52b and the anvils 51b and 52a of the first rotating body 50a and the second rotating body 50b. The first rotating body 50a is rotated around the rotation axis C1 by a drive motor (not shown). The second rotating body 50b is rotated around the rotation axis C2 by a drive motor (not shown). As shown by a two-dot chain line in FIG. 4, the first horn 51a and the second anvil 52a rotate in a D shape around the rotation axis C1, and the first anvil 51b and the second horn 52b rotate about the rotation axis. It turns in a D shape around C2. The cylindrical film Fc is sandwiched between the first horn 51a and the first anvil 51b by the rotation of the first rotator 50a and the second rotator 50b, and is sandwiched between the second horn 52b and the second anvil 52a.

また、図3に示されるように、第1回転体50aは、第1水平移動板61aに支持され、第2回転体50bは、第2水平移動板61bに支持されている。第1水平移動板61aおよび第2水平移動板61bは、横方向駆動機構55によって、互いに近接または離間するように前後方向に移動する。   As shown in FIG. 3, the first rotating body 50a is supported by the first horizontal moving plate 61a, and the second rotating body 50b is supported by the second horizontal moving plate 61b. The first horizontal moving plate 61a and the second horizontal moving plate 61b are moved in the front-rear direction by the lateral drive mechanism 55 so as to approach or separate from each other.

また、図4に示されるように、横シール機構17には、フィルム検知センサ59が取り付けられている。フィルム検知センサ59は、例えば、光電センサおよび超音波センサである。フィルム検知センサ59は、第1ホーン51aおよび第1アンビル51b(または、第2ホーン52bおよび第2アンビル52a)によって筒状フィルムFcが挟み込まれる直前において、筒状フィルムFcの有無を検知する。フィルム検知センサ59によって筒状フィルムFcが存在しないと検知された場合、第1ホーン51aと第1アンビル51bとが互いに接触しないように、または、第2ホーン52bと第2アンビル52aとが互いに接触しないように、第1回転体50aおよび第2回転体50bの回転動作が制御される。   Further, as shown in FIG. 4, a film detection sensor 59 is attached to the lateral seal mechanism 17. The film detection sensor 59 is, for example, a photoelectric sensor or an ultrasonic sensor. The film detection sensor 59 detects the presence or absence of the tubular film Fc immediately before the tubular film Fc is sandwiched between the first horn 51a and the first anvil 51b (or the second horn 52b and the second anvil 52a). When the film detection sensor 59 detects that the tubular film Fc is not present, the first horn 51a and the first anvil 51b are not in contact with each other, or the second horn 52b and the second anvil 52a are in contact with each other. The rotation operation of the first rotating body 50a and the second rotating body 50b is controlled so as not to occur.

(2−5)横方向駆動機構
横方向駆動機構55は、図3に示されるように、主として、ボールねじ80a、第1ナット81、第2ナット82、第3連結ロッド85および第4連結ロッド86を有する。横方向駆動機構55は、第1水平移動板61aおよび第2水平移動板61bを、図3において両矢印で示される前後方向に移動させる機構である。
(2-5) Lateral Drive Mechanism As shown in FIG. 3, the lateral drive mechanism 55 mainly includes a ball screw 80a, a first nut 81, a second nut 82, a third connecting rod 85, and a fourth connecting rod. 86. The lateral drive mechanism 55 is a mechanism that moves the first horizontal movement plate 61a and the second horizontal movement plate 61b in the front-rear direction indicated by the double arrows in FIG.

ボールねじ80aは、サーボモータ80によって回転する。第1ナット81および第2ナット82は、ボールねじ80aに螺合する。第1ナット81がボールねじ80aと螺合する部分と、第2ナット82がボールねじ80aと螺合する部分とは、互いに逆ネジの関係になっている。一対の第3連結ロッド85は、第1水平移動板61aおよび第2水平移動板61bの移動方向に沿って設けられている。第4連結ロッド86は、第3連結ロッド85と平行に設けられている。第3連結ロッド85の先端は、第2水平移動板61bの側端面に固定されている。第3連結ロッド85は、第1水平移動板61aをスライド自在に貫通している。第4連結ロッド86の先端は、第1水平移動板61aの側端面に固定されている。横方向駆動機構55は、ボールねじ80aを回転させることによって、第1水平移動板61aおよび第2水平移動板61bを互いに近接させたり離間させたりすることができる。   The ball screw 80a is rotated by the servo motor 80. The first nut 81 and the second nut 82 are screwed into the ball screw 80a. A portion where the first nut 81 is screwed with the ball screw 80a and a portion where the second nut 82 is screwed with the ball screw 80a are in a reverse screw relationship. The pair of third connecting rods 85 are provided along the moving direction of the first horizontal moving plate 61a and the second horizontal moving plate 61b. The fourth connecting rod 86 is provided in parallel with the third connecting rod 85. The tip of the third connecting rod 85 is fixed to the side end surface of the second horizontal moving plate 61b. The third connecting rod 85 penetrates the first horizontal movement plate 61a so as to be slidable. The tip of the fourth connecting rod 86 is fixed to the side end surface of the first horizontal movement plate 61a. The lateral drive mechanism 55 can move the first horizontal moving plate 61a and the second horizontal moving plate 61b closer to or away from each other by rotating the ball screw 80a.

なお、横方向駆動機構55は、第1水平移動板61aから、図3の紙面に垂直な方向に沿って所定の距離だけ離れている位置に、もう1つの第1水平移動板62aを有している。横方向駆動機構55は、第2水平移動板61bから、図3の紙面に垂直な方向に沿って所定の距離だけ離れている位置に、もう1つの第2水平移動板62bを有している。第1水平移動板62aおよび第2水平移動板62bは、それぞれ、第1水平移動板61aおよび第2水平移動板61bと同じ動作をする。   The lateral drive mechanism 55 has another first horizontal movement plate 62a at a position away from the first horizontal movement plate 61a by a predetermined distance along a direction perpendicular to the paper surface of FIG. ing. The lateral drive mechanism 55 has another second horizontal movement plate 62b at a position away from the second horizontal movement plate 61b by a predetermined distance along a direction perpendicular to the paper surface of FIG. . The first horizontal movement plate 62a and the second horizontal movement plate 62b perform the same operations as the first horizontal movement plate 61a and the second horizontal movement plate 61b, respectively.

(3)横シール機構の構成
次に、横シール機構17の詳細な構成について説明する。図5は、横シール機構17の第1回転体50aおよび第2回転体50bの斜視図である。図6は、第1回転体50aに取り付けられた第1ホーン51aおよびその周辺部材の斜視図である。
(3) Configuration of Horizontal Seal Mechanism Next, a detailed configuration of the horizontal seal mechanism 17 will be described. FIG. 5 is a perspective view of the first rotating body 50a and the second rotating body 50b of the lateral seal mechanism 17. FIG. FIG. 6 is a perspective view of the first horn 51a and its peripheral members attached to the first rotating body 50a.

(3−1)第1回転体および第2回転体の構成
第1回転体50aは、回転軸C1を中心に回転する旋回軸94,95と、旋回軸94に相対回転可能に支持されているレバー91d,92dと、旋回軸95に相対回転可能に支持されているレバー91e,92eとを有する。旋回軸94は、第1水平移動板61aに軸支され、旋回軸95は、第1水平移動板62aに軸支されている。
(3-1) Configuration of First Rotating Body and Second Rotating Body The first rotating body 50a is supported by the turning shafts 94 and 95 that rotate about the rotation axis C1 and the turning shaft 94 so as to be relatively rotatable. Lever 91d, 92d, and lever 91e, 92e supported by the turning shaft 95 so that relative rotation is possible. The turning shaft 94 is pivotally supported by the first horizontal moving plate 61a, and the turning shaft 95 is pivotally supported by the first horizontal moving plate 62a.

第1ホーン51aは、その一端がレバー91dの先端によって支持され、その他端がレバー91eの先端によって支持されている。第1ホーン51aは、レバー91d,91eが回転軸C1を中心に回転する時に、共に回転する。   The first horn 51a has one end supported by the tip of the lever 91d and the other end supported by the tip of the lever 91e. The first horn 51a rotates together when the levers 91d and 91e rotate around the rotation axis C1.

第2アンビル52aは、その一端がレバー92dの先端によって支持され、その他端がレバー92eの先端によって支持されている。第2アンビル52aは、レバー92d,92eが回転軸C1を中心に回転する時に、共に回転する。   The second anvil 52a has one end supported by the tip of the lever 92d and the other end supported by the tip of the lever 92e. The second anvil 52a rotates together when the levers 92d and 92e rotate around the rotation axis C1.

第2回転体50bは、回転軸C2を中心に回転する旋回軸96,97と、旋回軸96に相対回転可能に支持されているレバー91f,92fと、旋回軸97に相対回転可能に支持されているレバー91g,92gとを有する。旋回軸96は、第2水平移動板61bに軸支され、旋回軸97は、第2水平移動板62bに軸支されている。   The second rotating body 50 b is supported by the swivel shafts 96 and 97 that rotate about the rotation axis C <b> 2, levers 91 f and 92 f that are supported by the swivel shaft 96 so as to be rotatable relative to each other, and the swivel shaft 97. Levers 91g and 92g. The pivot shaft 96 is pivotally supported by the second horizontal movement plate 61b, and the pivot shaft 97 is pivotally supported by the second horizontal movement plate 62b.

第1アンビル51bは、その一端がレバー91fの先端によって支持され、その他端がレバー91gの先端によって支持されている。第1アンビル51bは、レバー91f,91gが回転軸C2を中心に回転する時に、共に回転する。   The first anvil 51b has one end supported by the tip of the lever 91f and the other end supported by the tip of the lever 91g. The first anvil 51b rotates together when the levers 91f and 91g rotate around the rotation axis C2.

第2ホーン52bは、その一端がレバー92fの先端によって支持され、その他端がレバー92gの先端によって支持されている。第2ホーン52bは、レバー92f,92gが回転軸C2を中心に回転する時に、共に回転する。   The second horn 52b has one end supported by the tip of the lever 92f and the other end supported by the tip of the lever 92g. The second horn 52b rotates together when the levers 92f and 92g rotate about the rotation axis C2.

第1ホーン51aは、筒状フィルムFcの幅方向(左右方向)の寸法より長く延びている。第1ホーン51aは、シール方向(左右方向)に沿って並んでいる3つの振動素子511と連結されている。第1ホーン51aは、3つの振動素子511によって超音波振動する。第1ホーン51aと第1アンビル51bとに挟み込まれた筒状フィルムFcの一部は、第1ホーン51aの超音波振動によって、シール方向に超音波シールされる。   The 1st horn 51a is extended longer than the dimension of the width direction (left-right direction) of the cylindrical film Fc. The 1st horn 51a is connected with the three vibration elements 511 arranged along the sealing direction (left-right direction). The first horn 51a is ultrasonically vibrated by the three vibration elements 511. A part of the cylindrical film Fc sandwiched between the first horn 51a and the first anvil 51b is ultrasonically sealed in the sealing direction by the ultrasonic vibration of the first horn 51a.

第2ホーン52bは、筒状フィルムFcの幅方向の寸法より長く延びている。第2ホーン52bは、シール方向に沿って並んでいる3つの振動素子521と連結されている。第2ホーン52bは、3つの振動素子521によって超音波振動する。第2ホーン52bと第2アンビル52aとに挟み込まれた筒状フィルムFcの一部は、第2ホーン52bの超音波振動によって、シール方向に超音波シールされる。   The second horn 52b extends longer than the dimension in the width direction of the tubular film Fc. The second horn 52b is connected to three vibration elements 521 arranged along the sealing direction. The second horn 52b is ultrasonically vibrated by the three vibration elements 521. A part of the cylindrical film Fc sandwiched between the second horn 52b and the second anvil 52a is ultrasonically sealed in the sealing direction by the ultrasonic vibration of the second horn 52b.

なお、振動素子511および振動素子521の数は、3つに限定されるものではなく、第1ホーン51aおよび第2ホーン52bの幅方向の寸法に応じて、適宜に変更可能である。   Note that the number of the vibration elements 511 and the vibration elements 521 is not limited to three, and can be appropriately changed according to the width-direction dimensions of the first horn 51a and the second horn 52b.

(3−2)第1ホーンおよび第2ホーンの構成
以下、便宜上、図6に示されるユニットをホーンユニット51と呼ぶ。ホーンユニット51は、主として、第1ホーン51aと、3つの振動素子511と、4つの円柱状の共振体513とから構成される。第1ホーン51aは、第1アンビル51bと共に筒状フィルムFcを挟むホーン本体である。第1ホーン51aは、後述するように、ホーン支持体71によって支持されている。図7は、ホーンユニット51の平面図である。図8は、図7の線分VIII−VIIIにおける断面図である。図9は、図7の線分IX−IXにおける断面図である。なお、以下の説明は、第2ホーン52bを有するホーンユニットにも適用可能である。
(3-2) Configuration of First Horn and Second Horn The unit shown in FIG. 6 is referred to as a horn unit 51 for convenience. The horn unit 51 mainly includes a first horn 51a, three vibration elements 511, and four columnar resonators 513. The 1st horn 51a is a horn main body which pinches | interposes the cylindrical film Fc with the 1st anvil 51b. The first horn 51a is supported by a horn support 71 as will be described later. FIG. 7 is a plan view of the horn unit 51. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. In addition, the following description is applicable also to the horn unit which has the 2nd horn 52b.

3つの振動素子511は、第1ホーン51aと第2アンビル52aとの間において、シール方向に沿って等間隔に配置されるように、第1ホーン51aと連結されている。4つの共振体513は、第1ホーン51aと第2アンビル52aとの間において、シール方向に沿って等間隔に配置されるように、第1ホーン51aと連結されている。それぞれの振動素子511は、その両側を2つの共振体513によって挟まれている。すなわち、図7に示されるように、振動素子511および共振体513は、シール方向に沿って交互に配置されている。   The three vibration elements 511 are connected to the first horn 51a so as to be arranged at equal intervals along the sealing direction between the first horn 51a and the second anvil 52a. The four resonators 513 are connected to the first horn 51a so as to be arranged at equal intervals along the sealing direction between the first horn 51a and the second anvil 52a. Each vibrating element 511 is sandwiched between two resonators 513 on both sides. That is, as illustrated in FIG. 7, the vibration elements 511 and the resonators 513 are alternately arranged along the seal direction.

図8は、共振体513の長軸に沿ったホーンユニット51の断面図である。共振体513の長軸方向の中央には、超音波振動の節が位置している。ホーンユニット51は、この節の近傍を保持しつつ第1回転体50aを固定することによって、第1ホーン51aを安定して駆動することができる。超音波振動の節の位置において、共振体513の外周から径方向に沿って、フランジ513aが突出している。ホーンユニット51は、フランジ513aを介して第1回転体50aを固定する。フランジ513aの外周面は、保持部515によって、上下方向の両側から挟まれている。フランジ513aの一方の側面は、保持部515と接触し、かつ、他方の側面は、保持板519と接触している。すなわち、保持部515および保持板519は、フランジ513aを挟むように固定している。保持部515は、後述する第1支持部材73に固定されている。   FIG. 8 is a cross-sectional view of the horn unit 51 along the long axis of the resonator 513. A node of ultrasonic vibration is located in the center of the long axis direction of the resonator 513. The horn unit 51 can stably drive the first horn 51a by fixing the first rotating body 50a while holding the vicinity of this node. A flange 513a protrudes along the radial direction from the outer periphery of the resonator 513 at the position of the node of the ultrasonic vibration. The horn unit 51 fixes the first rotating body 50a via the flange 513a. The outer peripheral surface of the flange 513a is sandwiched by the holding portion 515 from both sides in the vertical direction. One side surface of the flange 513a is in contact with the holding portion 515, and the other side surface is in contact with the holding plate 519. That is, the holding part 515 and the holding plate 519 are fixed so as to sandwich the flange 513a. The holding part 515 is fixed to a first support member 73 described later.

図9は、振動素子511の長軸に沿ったホーンユニット51の断面図である。振動素子511は、第1ホーン51aと連結され、第1ホーン51aに超音波振動を伝達する円柱状の伝達体511bを有する。振動素子511の伝達体511bの長軸方向の中央において、振動素子511の外周から径方向に沿って、フランジ511aが突出している。ホーンユニット51は、フランジ511aを介して第1回転体50aを固定する。フランジ511aの外周面は、保持部525によって、上下方向の両側から挟まれている。フランジ511aの一方の側面は、保持部525と接触し、かつ、他方の側面は、保持板529と接触している。すなわち、保持部525および保持板529は、フランジ513aを挟むように固定している。   FIG. 9 is a cross-sectional view of the horn unit 51 along the long axis of the vibration element 511. The vibration element 511 is connected to the first horn 51a, and includes a columnar transmission body 511b that transmits ultrasonic vibration to the first horn 51a. A flange 511a protrudes from the outer periphery of the vibration element 511 along the radial direction at the center in the major axis direction of the transmission body 511b of the vibration element 511. The horn unit 51 fixes the first rotating body 50a via the flange 511a. The outer peripheral surface of the flange 511a is sandwiched by the holding portion 525 from both sides in the vertical direction. One side surface of the flange 511 a is in contact with the holding portion 525, and the other side surface is in contact with the holding plate 529. That is, the holding part 525 and the holding plate 529 are fixed so as to sandwich the flange 513a.

(3−3)ホーン支持体の構成
次に、ホーンユニット51の第1ホーン51aを支持するホーン支持体71について説明する。図10は、ホーンユニット51に取り付けられたホーン支持体71の概略的な平面図である。図10において、ホーン支持体71は、ハッチングされた領域で示されている。以下の説明は、第2ホーン52bにも適用可能である。
(3-3) Configuration of Horn Support Next, the horn support 71 that supports the first horn 51a of the horn unit 51 will be described. FIG. 10 is a schematic plan view of the horn support 71 attached to the horn unit 51. In FIG. 10, the horn support 71 is shown in the hatched area. The following description is applicable to the second horn 52b.

ホーン支持体71は、ホーンユニット51の第1ホーン51aに連結されている。ホーン支持体71は、加圧部72によって力が加えられる。加圧部72は、例えば、エアシリンダ等の駆動機構である。図10において、加圧部72がホーン支持体71に加える力は、白抜きの矢印で示されている。第1ホーン51aは、ホーン支持体71を介して加圧部72から力を受けて、第1アンビル51bに向かって押される。第1ホーン51aは、振動素子511によって超音波振動する。これにより、第1ホーン51aおよび第1アンビル51bによって挟まれている筒状フィルムFcに、第1ホーン51aから超音波振動が伝達されて、筒状フィルムFcが横シールされる。   The horn support 71 is connected to the first horn 51 a of the horn unit 51. A force is applied to the horn support 71 by the pressure unit 72. The pressurizing unit 72 is a drive mechanism such as an air cylinder, for example. In FIG. 10, the force applied by the pressure unit 72 to the horn support 71 is indicated by a white arrow. The first horn 51a receives a force from the pressure unit 72 via the horn support 71 and is pushed toward the first anvil 51b. The first horn 51a is ultrasonically vibrated by the vibration element 511. Thereby, ultrasonic vibration is transmitted from the first horn 51a to the tubular film Fc sandwiched between the first horn 51a and the first anvil 51b, and the tubular film Fc is laterally sealed.

ホーン支持体71は、図10に示されるように、主として、第1支持部材73と、第2支持部材74と、連結部材75とから構成される。   As shown in FIG. 10, the horn support 71 is mainly composed of a first support member 73, a second support member 74, and a connecting member 75.

第1支持部材73は、ホーンユニット51に連結されている。具体的には、ホーンユニット51の4つの共振体513は、それぞれ、第1支持部材73に取り付けられて固定されている。すなわち、ホーンユニット51の第1ホーン51aは、4つの共振体513を介して、第1支持部材73と連結されている。しかし、第2支持部材74および連結部材75は、ホーンユニット51と直接連結されていない。   The first support member 73 is connected to the horn unit 51. Specifically, the four resonators 513 of the horn unit 51 are respectively attached and fixed to the first support member 73. That is, the first horn 51 a of the horn unit 51 is connected to the first support member 73 via the four resonators 513. However, the second support member 74 and the connecting member 75 are not directly connected to the horn unit 51.

第2支持部材74は、加圧部72によって力が加えられる。図10に示されるように、加圧部72は、第2支持部材74の両端部を第1アンビル51bに向かって押す。すなわち、加圧部72は、第1ホーン51aを第1アンビル51bに向かって移動させて、第1ホーン51aおよび第1アンビル51bによって筒状フィルムFcを挟み込むための力をホーン支持体71に与える。   A force is applied to the second support member 74 by the pressure unit 72. As shown in FIG. 10, the pressurizing unit 72 pushes both end portions of the second support member 74 toward the first anvil 51b. That is, the pressurizing unit 72 moves the first horn 51a toward the first anvil 51b and gives the horn support 71 a force for sandwiching the tubular film Fc by the first horn 51a and the first anvil 51b. .

連結部材75は、第1支持部材73の中央部である第1中央部73aと、第2支持部材74の中央部である第2中央部74aとを連結する。第1中央部73aは、第1支持部材73の幅方向の中央部である。ここで、幅方向は、左右方向、または、図10に示される第1ホーン51aの長手方向である。同様に、第2中央部74aは、第2支持部材74の幅方向の中央部である。第1中央部73aは、第1支持部材73の一対の端部固定部73bの間に位置している。一対の端部固定部73bは、図10に示されるように、ホーンユニット51の4つの共振体513の内、幅方向において両端に位置している2つの共振体513がそれぞれ固定される部分である。第1中央部73aは、連結部材75が連結される部分であるので、連結部材75の幅方向の寸法は、一対の端部固定部73bにそれぞれ固定される2つの共振体513の間の間隔よりも小さい。   The connecting member 75 connects the first central portion 73 a that is the central portion of the first support member 73 and the second central portion 74 a that is the central portion of the second support member 74. The first central portion 73 a is a central portion in the width direction of the first support member 73. Here, the width direction is the left-right direction or the longitudinal direction of the first horn 51a shown in FIG. Similarly, the second central portion 74 a is a central portion in the width direction of the second support member 74. The first central portion 73 a is located between the pair of end portion fixing portions 73 b of the first support member 73. As shown in FIG. 10, the pair of end portion fixing portions 73b are portions to which two resonators 513 located at both ends in the width direction are fixed, respectively, among the four resonators 513 of the horn unit 51. is there. Since the first central portion 73a is a portion to which the connecting member 75 is connected, the dimension of the connecting member 75 in the width direction is the distance between the two resonators 513 fixed to the pair of end fixing portions 73b. Smaller than.

(3−4)電力供給機構の構成
次に、横シール機構17の電力供給機構について説明する。図5に示されるように、第1回転体50aの回転軸C1の延長上には、第1スリップリング101が設けられ、第2回転体50bの回転軸C2の延長上には、第2スリップリング102が設けられている。第1スリップリング101および第2スリップリング102は、回転する導体と、固定されて回転しない導体との間を、連続的かつ電気的に接続する導電回転リングである。第1スリップリング101は、第1回転体50aと共に回転する振動素子511に電力を供給し、第2スリップリング102は、第2回転体50bと共に回転する振動素子521に電力を供給する。
(3-4) Configuration of Power Supply Mechanism Next, the power supply mechanism of the lateral seal mechanism 17 will be described. As shown in FIG. 5, a first slip ring 101 is provided on the extension of the rotation axis C1 of the first rotating body 50a, and a second slip is provided on the extension of the rotation axis C2 of the second rotating body 50b. A ring 102 is provided. The first slip ring 101 and the second slip ring 102 are conductive rotating rings that continuously and electrically connect a rotating conductor and a fixed, non-rotating conductor. The first slip ring 101 supplies power to the vibration element 511 that rotates together with the first rotating body 50a, and the second slip ring 102 supplies power to the vibration element 521 that rotates together with the second rotating body 50b.

第1回転体50aには、3つのトランス111が搭載されている。各トランス111は、1つの第1スリップリング101と、各振動素子511との間を介在する。3つのトランス111の一次側の巻き線が直列に接続されて構成された二極に、二極タイプの第1スリップリング101を介して電力が供給される。3つのトランス111の二次側の巻き線は、各振動素子511と対応し、それぞれ独立した駆動電圧が供給される。   Three transformers 111 are mounted on the first rotating body 50a. Each transformer 111 is interposed between one first slip ring 101 and each vibration element 511. Electric power is supplied to the two poles formed by connecting the primary windings of the three transformers 111 in series via the first slip ring 101 of the two-pole type. The secondary windings of the three transformers 111 correspond to the vibration elements 511 and are supplied with independent drive voltages.

3つのトランス111は、板状のトランスホルダ121に保持されている。トランスホルダ121の対向する一対の長辺のそれぞれの中央から、回転軸C1と平行に、アーム131が延びている。2つのアーム131の端部は、板状のスリップリングホルダ141を両端から挟むように固定している。スリップリングホルダ141には、回転軸C1と同心の孔が設けられている。スリップリングホルダ141は、この孔によって、第1スリップリング101を保持している。これにより、第1スリップリング101を介して、回転しない電源側から、回転する3つのトランス111側に電力が供給される。   The three transformers 111 are held by a plate-like transformer holder 121. An arm 131 extends in parallel with the rotation axis C1 from the center of each of the pair of opposing long sides of the transformer holder 121. The ends of the two arms 131 are fixed so as to sandwich the plate-shaped slip ring holder 141 from both ends. The slip ring holder 141 is provided with a hole concentric with the rotation axis C1. The slip ring holder 141 holds the first slip ring 101 through this hole. Thereby, electric power is supplied from the non-rotating power supply side to the rotating three transformers 111 via the first slip ring 101.

図11は、第1回転体50aの第1スリップリング101、3つのトランス111および3つの振動素子511の電気的接続状態の模式図である。3つのトランス111の一次側の巻き線が直列に接続されているので、電力が供給される対象は二極となっている。そのため、1つの二極型の第1スリップリング101を用いて、回転する3つのトランス111に電力を供給することができる。   FIG. 11 is a schematic diagram of an electrical connection state of the first slip ring 101, the three transformers 111, and the three vibration elements 511 of the first rotating body 50a. Since the primary windings of the three transformers 111 are connected in series, the target to which power is supplied is bipolar. Therefore, electric power can be supplied to the three transformers 111 that rotate using one bipolar first slip ring 101.

また、第1回転体50aの側と同様に、第2回転体50bの側には、第2スリップリング102、3つのトランス112、トランスホルダ122、アーム132およびスリップリングホルダ142が設けられている。これらの部材の動作は、第1回転体50aの側の対応する各部材の動作と同じである。   Similarly to the first rotating body 50a side, the second slip ring 102, the three transformers 112, the transformer holder 122, the arm 132, and the slip ring holder 142 are provided on the second rotating body 50b side. . The operations of these members are the same as the operations of the corresponding members on the first rotating body 50a side.

(4)製袋包装機の動作
最初に、製袋包装機1が被包装物Cを袋Bに充填する動作について説明する。フィルム供給ユニット4から成形機構13に供給されたフィルムFは、チューブ13aに巻き付けられて筒状に成形され、プルダウンベルト機構14によって下方に搬送される。チューブ13aに巻き付けられたフィルムFは、上下方向に延びている両端部が重ね合わせられている。筒状に成形されたフィルムFの重なり部分は、縦シール機構15によって縦方向にシールされ、筒状フィルムFcが形成される。
(4) Operation of the bag making and packaging machine First, the operation of the bag making and packaging machine 1 filling the bag B with the article C to be packaged will be described. The film F supplied from the film supply unit 4 to the forming mechanism 13 is wound around the tube 13 a to be formed into a cylindrical shape, and is conveyed downward by the pull-down belt mechanism 14. The film F wound around the tube 13a is overlapped at both ends extending in the vertical direction. The overlapping portion of the film F formed into a cylindrical shape is sealed in the vertical direction by the vertical sealing mechanism 15 to form a cylindrical film Fc.

縦シールされた筒状フィルムFcは、チューブ13aから抜けて、横シール機構17まで搬送される。筒状フィルムFcの搬送と同時に、組合せ計量ユニット2で計量された被包装物Cがチューブ13aの上側の開口に投下される。被包装物Cは、チューブ13a内を落下して、チューブ13aの下側の開口から排出される。このとき、チューブ13aの下方では、筒状フィルムFcは、第1ホーン51aおよび第1アンビル51bによって既に横シールされた部分を有している。この横シールされた部分より上方の筒状フィルムFcは、下端部のみがシールされている袋Bを構成している。被包装物Cは、この袋Bの中に投入される。次に、第1ホーン51aおよび第1アンビル51bが、袋Bの上端部に相当する部分を横シールして、被包装物Cが封入された袋Bを形成する。このとき、袋Bは、後続する筒状フィルムFcと連結されている。被包装物Cが封入された袋Bは、後続する筒状フィルムFcから、切断機構によって切り離される。   The longitudinally sealed tubular film Fc is removed from the tube 13 a and conveyed to the lateral sealing mechanism 17. Simultaneously with the conveyance of the tubular film Fc, the article to be packaged C weighed by the combination weighing unit 2 is dropped into the upper opening of the tube 13a. The packaged article C drops in the tube 13a and is discharged from the lower opening of the tube 13a. At this time, below the tube 13a, the tubular film Fc has a portion that has already been laterally sealed by the first horn 51a and the first anvil 51b. The tubular film Fc above the laterally sealed portion constitutes a bag B in which only the lower end is sealed. The packaged item C is put into the bag B. Next, the first horn 51a and the first anvil 51b laterally seal the portion corresponding to the upper end portion of the bag B to form the bag B in which the article to be packaged C is enclosed. At this time, the bag B is connected to the subsequent cylindrical film Fc. The bag B in which the article to be packaged C is enclosed is separated from the subsequent cylindrical film Fc by a cutting mechanism.

切断機構は、図6に示されるように、第1アンビル51bおよび第2アンビル52aの先端部に設けられたカッター78と、第1ホーン51aおよび第2ホーン52bに設けられたスライド溝79とから構成される。カッター78は、筒状フィルムFcを横シールするタイミングに合わせて、エアシリンダ等の駆動機構によってスライド溝79に向かって前進する。そして、横シールされた部分の上下方向の中央部にカッター78が押し当てられて、横シールされた部分が切断される。 As shown in FIG. 6, the cutting mechanism includes a cutter 78 provided at the tip of the first anvil 51b and the second anvil 52a, and a slide groove 79 provided in the first horn 51a and the second horn 52b. Composed. The cutter 78 moves forward toward the slide groove 79 by a driving mechanism such as an air cylinder in accordance with the timing of laterally sealing the cylindrical film Fc. Then, the cutter 78 is pressed against the central portion in the vertical direction of the laterally sealed portion, and the laterally sealed portion is cut.

以上のようにして、被包装物Cが封入された袋Bが、連続的に製造される。製造された袋Bは、その後、ベルトコンベア(図示せず)によって導かれ、厚みチェッカーおよび重さチェッカー等の後工程の装置に移送される。   As described above, the bag B in which the article to be packaged C is enclosed is continuously manufactured. The manufactured bag B is then guided by a belt conveyor (not shown) and transferred to a subsequent device such as a thickness checker and a weight checker.

本実施形態では、第1ホーン51aおよび第1アンビル51bは、旋回しながら互いに近付いて筒状フィルムFcを挟み込む。そして、第1ホーン51aおよび第1アンビル51bは、筒状フィルムFcを挟んだまま旋回方向に沿って直線的に移動し、その間に筒状フィルムFcを横シールする。その後、第1ホーン51aおよび第1アンビル51bは、互いに離間する方向に旋回する。具体的には、図4に示されるように、第1ホーン51aおよび第1アンビル51bは、筒状フィルムFcを挟み始める時点で旋回運動から直線運動に移行し、筒状フィルムFcから離れ始める時点で直線運動から旋回運動に移行する、いわゆるDモーションを行う。以上の動作は、第2ホーン52bおよび第2アンビル52aにも適用可能である。   In the present embodiment, the first horn 51a and the first anvil 51b approach each other while turning and sandwich the tubular film Fc. Then, the first horn 51a and the first anvil 51b move linearly along the turning direction while sandwiching the tubular film Fc, and horizontally seal the tubular film Fc therebetween. Thereafter, the first horn 51a and the first anvil 51b are turned in directions away from each other. Specifically, as shown in FIG. 4, when the first horn 51a and the first anvil 51b start to sandwich the tubular film Fc, the turning movement is changed to the linear movement, and the first horn 51a and the first anvil 51b start to move away from the tubular film Fc. The so-called D-motion is performed in which the movement from the linear motion to the turning motion is performed. The above operation can also be applied to the second horn 52b and the second anvil 52a.

また、本実施形態では、第1ホーン51aは、軸受によって、その一端がレバー91dの先端に、その他端がレバー91eの先端に振れ自在に支持されている。第2アンビル52aは、軸受によって、その一端がレバー92dの先端に、その他端がレバー92eの先端に振れ自在に支持されている。第1アンビル51bは、軸受によって、その一端がレバー91fの先端に、その他端がレバー91gの先端に振れ自在に支持されている。第2ホーン52bは、軸受によって、その一端がレバー92fの先端に、その他端がレバー92gの先端に振れ自在に支持されている。これにより、第1ホーン51aおよび第1アンビル51bのシール面を平面で構成し、かつ、第2ホーン52bおよび第2アンビル52aのシール面を平面で構成することができる。   In the present embodiment, the first horn 51a is supported by a bearing such that one end of the first horn 51a swings freely on the tip of the lever 91d and the other end on the tip of the lever 91e. The second anvil 52a is supported by a bearing such that one end of the second anvil 52a is swingable to the tip of the lever 92d and the other end is swingable to the tip of the lever 92e. The first anvil 51b is supported by a bearing such that one end of the first anvil 51b swings freely on the tip of the lever 91f and the other end on the tip of the lever 91g. The second horn 52b is supported by a bearing such that one end of the second horn 52b swings freely on the tip of the lever 92f and the other end on the tip of the lever 92g. Thereby, the sealing surface of the 1st horn 51a and the 1st anvil 51b can be comprised by a plane, and the sealing surface of the 2nd horn 52b and the 2nd anvil 52a can be comprised by a plane.

(5)製袋包装機の特徴
本実施形態に係る製袋包装機1では、ホーン支持体71は、第1ホーン51aから延びる4つの共振体513に連結されている第1支持部材73と、筒状フィルムFcの横シール時に加圧部72によって力が加えられる第2支持部材74とを有している。第1支持部材73は、第2支持部材74と、連結部材75を介して連結されている。
(5) Characteristics of the bag making and packaging machine In the bag making and packaging machine 1 according to the present embodiment, the horn support 71 is connected to the four resonators 513 extending from the first horn 51a, and the first support member 73. And a second support member 74 to which a force is applied by the pressurizing unit 72 when the cylindrical film Fc is laterally sealed. The first support member 73 is connected to the second support member 74 via a connecting member 75.

筒状フィルムFcの横シール時において、加圧部72は、第1ホーン51aを第1アンビル51bに向かって押す。このとき、第2支持部材74の両端部は、加圧部72から直接力を受ける。一方、第1支持部材73は、加圧部72から直接力を受けない。そのため、筒状フィルムFcの横シール時において加圧部72がホーン支持体71を加圧しても、第1支持部材73は撓みにくい。   When the cylindrical film Fc is laterally sealed, the pressurizing unit 72 pushes the first horn 51a toward the first anvil 51b. At this time, both end portions of the second support member 74 directly receive a force from the pressurizing unit 72. On the other hand, the first support member 73 does not receive a direct force from the pressure unit 72. Therefore, even when the pressurizing unit 72 pressurizes the horn support 71 during the horizontal sealing of the tubular film Fc, the first support member 73 is not easily bent.

次に、その理由を具体的に説明する。加圧部72から直接力を受けている第2支持部材74は、連結部材75を介して第1支持部材73に力を伝えることができる。連結部材75は、第1支持部材73の第1中央部73aと、第2支持部材74の第2中央部74aとを連結している。そのため、第1支持部材73の両端部、すなわち、一対の端部固定部73bの近傍は、第2支持部材74から直接力を受けず、第1支持部材73の第1中央部73aのみが、連結部材75を介して第2支持部材74から直接力を受ける。これにより、筒状フィルムFcの横シール時において、第1支持部材73の両端部が直接力を受けることがないので、第1支持部材73は撓みにくい。また、第2支持部材74が加圧によって撓んでいる場合においても、第1支持部材73は、連結部材75のみを介して第2支持部材74から力を受けるので、第1支持部材73は撓みにくい。そして、筒状フィルムFcの横シール時において第1支持部材73は撓みにくいので、第1支持部材73から4つの共振体513を介して力が加えられる第1ホーン51aも撓みにくい。   Next, the reason will be specifically described. The second support member 74 receiving the force directly from the pressure unit 72 can transmit the force to the first support member 73 via the connecting member 75. The connecting member 75 connects the first center portion 73 a of the first support member 73 and the second center portion 74 a of the second support member 74. Therefore, both ends of the first support member 73, that is, the vicinity of the pair of end fixing portions 73 b do not receive direct force from the second support member 74, and only the first central portion 73 a of the first support member 73 is A force is directly received from the second support member 74 via the connecting member 75. Thereby, since the both ends of the 1st support member 73 do not receive direct force at the time of the horizontal seal of the cylindrical film Fc, the 1st support member 73 is hard to bend. Even when the second support member 74 is bent by pressure, the first support member 73 receives a force from the second support member 74 only through the connecting member 75, so the first support member 73 is bent. Hateful. Since the first support member 73 is not easily bent when the cylindrical film Fc is laterally sealed, the first horn 51a to which force is applied from the first support member 73 via the four resonators 513 is also not easily bent.

従って、本実施形態に係る製袋包装機1は、筒状フィルムFcの横シール時において、第1ホーン51aの両端部が第1アンビル51bと接触することを回避することができる。これにより、製袋包装機1は、第1ホーン51aおよび第1アンビル51bの破損を防止することができ、第1ホーン51aおよび第1アンビル51bの寿命を向上させることができる。   Therefore, the bag making and packaging machine 1 according to the present embodiment can avoid that both end portions of the first horn 51a come into contact with the first anvil 51b when the cylindrical film Fc is laterally sealed. Thereby, the bag making packaging machine 1 can prevent the damage of the 1st horn 51a and the 1st anvil 51b, and can improve the lifetime of the 1st horn 51a and the 1st anvil 51b.

図12は、比較例としての、ホーンユニット51に取り付けられた従来のホーン支持体171の概略的な平面図である。図12において、ホーン支持体171以外の構成要素は、図10と同じである。図12において、ホーン支持体171は、ハッチングされた領域で示されている。ホーン支持体171は、主として、本体171aと、4つの支持部171bとから構成される。ホーンユニット51の4つの共振体513は、それぞれ、4つの支持部171bに固定されている。すなわち、ホーン支持体171は、4つの支持部171b、および、4つの共振体513を介して、第1ホーン51aと連結されている。   FIG. 12 is a schematic plan view of a conventional horn support 171 attached to the horn unit 51 as a comparative example. In FIG. 12, the components other than the horn support 171 are the same as those in FIG. In FIG. 12, the horn support 171 is shown in the hatched area. The horn support 171 mainly includes a main body 171a and four support portions 171b. The four resonators 513 of the horn unit 51 are respectively fixed to the four support portions 171b. That is, the horn support 171 is connected to the first horn 51a via the four support portions 171b and the four resonators 513.

図12に示される比較例では、筒状フィルムFcの横シール時において、ホーン支持体171の本体171aの両端部は、加圧部72から直接力を受ける。本体171aの両端部が力を受けることで、第1ホーン51aは、第1アンビル51bに向かって押される。しかし、ホーン支持体171の本体171aは、その長手方向の両端部において、長手方向に直交する方向の力を受けるので、撓みやすい。図12では、本体171aは、第1ホーン51aに向かって凹となるように撓みやすい。そのため、4つの支持部171b、および、4つの共振体513を介してホーン支持体171の本体171aと連結されている第1ホーン51aも、筒状フィルムFcの横シール時において、本体171aと同様に撓みやすい。従って、図12に示されるホーン支持体171を用いる場合、筒状フィルムFcの横シール時において、第1ホーン51aの撓みによって、第1ホーン51aの両端部が第1アンビル51bと接触して、第1ホーン51aおよび第1アンビル51bが破損するおそれがある。   In the comparative example shown in FIG. 12, both ends of the main body 171 a of the horn support 171 receive a force directly from the pressurizing unit 72 when the cylindrical film Fc is laterally sealed. The first horn 51a is pushed toward the first anvil 51b by receiving both ends of the main body 171a. However, since the main body 171a of the horn support 171 receives a force in a direction orthogonal to the longitudinal direction at both ends in the longitudinal direction, the body 171a is easily bent. In FIG. 12, the main body 171a is easily bent so as to be concave toward the first horn 51a. Therefore, the first horn 51a connected to the main body 171a of the horn support 171 via the four support portions 171b and the four resonators 513 is also the same as the main body 171a when the cylindrical film Fc is laterally sealed. It is easy to bend. Accordingly, when the horn support 171 shown in FIG. 12 is used, both ends of the first horn 51a come into contact with the first anvil 51b due to the bending of the first horn 51a when the cylindrical film Fc is laterally sealed. The first horn 51a and the first anvil 51b may be damaged.

(6)変形例
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。
(6) Modifications One embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention.

(6−1)変形例A
本実施形態では、第1支持部材73の第1中央部73aは、左右方向の両端の共振体513が固定される一対の端部固定部73bの間に位置している。しかし、第1支持部材73の第1中央部73aは、第1ホーン51aおよび第1アンビル51bに挟まれている筒状フィルムFcの両端の間に位置してもよい。
(6-1) Modification A
In this embodiment, the 1st center part 73a of the 1st support member 73 is located between a pair of edge part fixing | fixed part 73b to which the resonator 513 of the both ends of the left-right direction is fixed. However, the first central portion 73a of the first support member 73 may be positioned between both ends of the tubular film Fc sandwiched between the first horn 51a and the first anvil 51b.

図13は、本変形例における、ホーンユニット51に取り付けられたホーン支持体71の概略的な平面図である。図13において、ホーン支持体71の連結部材75以外の構成要素は、図10と同じである。図13において、ホーン支持体71は、ハッチングされた領域で示されている。本変形例では、ホーン支持体71の連結部材75の左右方向の幅W1は、筒状フィルムFcの左右方向の幅W2よりも小さい。   FIG. 13 is a schematic plan view of the horn support 71 attached to the horn unit 51 in the present modification. In FIG. 13, components other than the connecting member 75 of the horn support 71 are the same as those in FIG. In FIG. 13, the horn support 71 is shown in a hatched area. In this modification, the lateral width W1 of the connecting member 75 of the horn support 71 is smaller than the lateral width W2 of the tubular film Fc.

本変形例では、本実施形態と同様に、第2支持部材74の両端部は、加圧部72から直接力を受けるが、第1支持部材73は、加圧部72から直接力を受けない。そのため、筒状フィルムFcの横シール時において加圧部72がホーン支持体71を加圧しても、第1支持部材73は撓みにくい。   In the present modification, as in the present embodiment, both ends of the second support member 74 receive a direct force from the pressurizing unit 72, but the first support member 73 does not receive a direct force from the pressurizing unit 72. . Therefore, even when the pressurizing unit 72 pressurizes the horn support 71 during the horizontal sealing of the tubular film Fc, the first support member 73 is not easily bent.

(6−2)変形例B
本実施形態では、第1支持部材73の第1中央部73aは、左右方向の両端の共振体513が固定される一対の端部固定部73bの間に位置している。しかし、第1支持部材73の第1中央部73aは、左右方向の中央に位置する一対の共振体513が固定される、一対の中央固定部73cの間に位置してもよい。
(6-2) Modification B
In this embodiment, the 1st center part 73a of the 1st support member 73 is located between a pair of edge part fixing | fixed part 73b to which the resonator 513 of the both ends of the left-right direction is fixed. However, the first center portion 73a of the first support member 73 may be positioned between the pair of center fixing portions 73c to which the pair of resonators 513 positioned at the center in the left-right direction are fixed.

図14は、本変形例における、ホーンユニット51に取り付けられたホーン支持体71の概略的な平面図である。図14において、ホーン支持体71の連結部材75以外の構成要素は、図10と同じである。図14において、ホーン支持体71は、ハッチングされた領域で示されている。本変形例では、第1支持部材73の第1中央部73aは、第1支持部材73の一対の中央固定部73cの間の部分である。一対の中央固定部73cは、ホーンユニット51の4つの共振体513の内、左右方向の両端の共振体513を除く2つの共振体513がそれぞれ固定される部分である。第1中央部73aは、連結部材75が連結される部分である。そのため、図14に示されるように、連結部材75の左右方向の幅W1は、一対の中央固定部73cに固定される2つの共振体513の間の間隔W3よりも小さい。   FIG. 14 is a schematic plan view of a horn support 71 attached to the horn unit 51 in the present modification. 14, components other than the connecting member 75 of the horn support 71 are the same as those in FIG. In FIG. 14, the horn support 71 is shown in a hatched area. In the present modification, the first center portion 73 a of the first support member 73 is a portion between the pair of center fixing portions 73 c of the first support member 73. The pair of central fixing portions 73 c are portions to which two resonators 513 except for the resonators 513 at both ends in the left-right direction are fixed, among the four resonators 513 of the horn unit 51. The first central portion 73a is a portion to which the connecting member 75 is connected. Therefore, as shown in FIG. 14, the width W1 of the connecting member 75 in the left-right direction is smaller than the interval W3 between the two resonators 513 fixed to the pair of central fixing portions 73c.

本変形例では、本実施形態と同様に、第2支持部材74の両端部は、加圧部72から直接力を受けるが、第1支持部材73は、加圧部72から直接力を受けない。そのため、筒状フィルムFcの横シール時において加圧部72がホーン支持体71を加圧しても、第1支持部材73は撓みにくい。   In the present modification, as in the present embodiment, both ends of the second support member 74 receive a direct force from the pressurizing unit 72, but the first support member 73 does not receive a direct force from the pressurizing unit 72. . Therefore, even when the pressurizing unit 72 pressurizes the horn support 71 during the horizontal sealing of the tubular film Fc, the first support member 73 is not easily bent.

1 製袋包装機
13 成形機構
14 プルダウンベルト機構
15 縦シール機構
17 横シール機構(超音波シール機構)
51a 第1ホーン(ホーン本体)
51b 第1アンビル
55 横方向駆動機構
71 ホーン支持体
72 加圧部
73 第1支持部材
73a 第1中央部
73b 端部固定部(固定部)
74 第2支持部材
74a 第2中央部
75 連結部材
513 共振体(支持部)
B 袋
C 被包装物
F フィルム(包材)
Fc 筒状フィルム(チューブ状の包材)
DESCRIPTION OF SYMBOLS 1 Bag making packaging machine 13 Forming mechanism 14 Pull-down belt mechanism 15 Vertical sealing mechanism 17 Horizontal sealing mechanism (ultrasonic sealing mechanism)
51a 1st horn (horn body)
51b 1st anvil 55 Lateral drive mechanism 71 Horn support body 72 Pressurization part 73 1st support member 73a 1st center part 73b End part fixing | fixed part (fixing part)
74 2nd support member 74a 2nd center part 75 Connection member 513 Resonator (support part)
B Bag C Package contents F Film (packaging material)
Fc Cylindrical film (tubular packaging)

国際公開第2007/012917号International Publication No. 2007/012917

Claims (2)

チューブ状の包材に被包装物を充填して密封する製袋包装機であって、
ホーンおよびアンビルで前記包材を挟み、前記包材に超音波振動を与えて前記包材を幅方向にシールする超音波シール機構と、
前記ホーンを支持するホーン支持体と、
前記ホーン支持体を加圧して、前記ホーンを前記アンビルに向かって押す加圧部と、
を備え、
前記ホーンは、
前記アンビルと共に前記包材を挟むホーン本体と、
前記ホーン本体から延び、前記幅方向に配列される複数の支持部と、
を有し、
前記ホーン支持体は、
前記複数の支持部が固定される第1支持部材と、
前記加圧部によって両端部が加圧される第2支持部材と、
前記第1支持部材の中央部である第1中央部と、前記第2支持部材の中央部である第2中央部とを連結する連結部材と、
を有し、
前記連結部材は、前記幅方向の両端の前記支持部が固定される一対の固定部の間に位置する、
製袋包装機。
A bag making and packaging machine that fills and seals a tube-shaped packaging material with an article to be packaged,
An ultrasonic sealing mechanism for sandwiching the packaging material with a horn and an anvil, and applying ultrasonic vibration to the packaging material to seal the packaging material in the width direction;
A horn support for supporting the horn;
Pressurizing the horn support and pressing the horn toward the anvil; and
With
The horn is
A horn body sandwiching the packaging material with the anvil;
A plurality of support portions extending from the horn body and arranged in the width direction;
Have
The horn support is
A first support member to which the plurality of support portions are fixed;
A second support member whose both ends are pressurized by the pressure unit;
A connecting member that connects the first central portion that is the central portion of the first support member and the second central portion that is the central portion of the second support member;
Have
The connecting member is located between a pair of fixed portions to which the support portions at both ends in the width direction are fixed.
Bag making and packaging machine.
前記連結部材は、前記ホーンおよび前記アンビルに挟まれている前記包材よりも小さい幅を有する、
請求項1に記載の製袋包装機。
The connecting member has a width smaller than the packaging material sandwiched between the horn and the anvil.
The bag making and packaging machine according to claim 1.
JP2013261471A 2013-12-18 2013-12-18 Bag making and packaging machine Active JP6258691B2 (en)

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JP6706045B2 (en) * 2015-10-09 2020-06-03 大森機械工業株式会社 Pillow packaging machine
WO2017184202A1 (en) * 2016-04-18 2017-10-26 Edison Welding Institute, Inc. Modular ultrasonic device for use in package sealing systems

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JPS62156930A (en) * 1985-12-28 1987-07-11 Yuuwa Sangyo Kk Ultrasonic wave bonding device
US6605178B1 (en) * 1998-03-23 2003-08-12 Shikoku Kakoki Co., Ltd. Ultrasonic sealer
ITBO20050511A1 (en) * 2005-07-29 2005-10-28 Azionaria Costruzioni Acma Spa ULTRASONIC WELDING DEVICE OF CONTINUOUS TUBULAR RIBBONS
EP2368694A1 (en) * 2010-03-22 2011-09-28 Tetra Laval Holdings & Finance S.A. Sonotrode
US20140109513A1 (en) * 2011-05-10 2014-04-24 Gea Food Solutions Weert B.V. Sealing system for a packaging machine
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