JP2004114325A - Anti-slip material pressure bonding roller device in pallet anti-slip material welding device - Google Patents

Anti-slip material pressure bonding roller device in pallet anti-slip material welding device Download PDF

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Publication number
JP2004114325A
JP2004114325A JP2002276947A JP2002276947A JP2004114325A JP 2004114325 A JP2004114325 A JP 2004114325A JP 2002276947 A JP2002276947 A JP 2002276947A JP 2002276947 A JP2002276947 A JP 2002276947A JP 2004114325 A JP2004114325 A JP 2004114325A
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Japan
Prior art keywords
slip material
pressing roller
pallet
slip
welding
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JP2002276947A
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Japanese (ja)
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JP4267884B2 (en
Inventor
Kei Shioya
塩屋 圭
Tokuaki Hara
原 徳昭
Kunihiro Terano
寺野 国宏
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Meiji Rubber and Chemical Co Ltd
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Meiji Rubber and Chemical Co Ltd
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    • 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
    • B29C65/10Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
    • 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
    • B29C65/78Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • 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
    • B29C66/03After-treatments in the joint area
    • B29C66/034Thermal after-treatments
    • B29C66/0342Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/349Cooling the welding zone on the welding spot
    • 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
    • B29C66/47Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B29C66/4722Fixing strips to surfaces other than edge faces
    • 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
    • B29C66/8167Quick change joining tools or surfaces
    • 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
    • B29C66/818General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811General 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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • B29C66/83417Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • 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
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7178Pallets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Pallets (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-slip material pressure bonding roller device in a pallet anti-slip material welding device which prevents a thin-walled anti-slip material from meandering even when it is used and improves the welding strength. <P>SOLUTION: This anti-slip material pressure bonding roller device of the anti-slip material welding device melts an anti-slip material and a pallet anti-slip material together by blowing a hot blast to their welding faces and welds the anti-slip material using a pressure bonding roller device. In this device, an anti-slip guide plate is arranged on both sides of a pressing roller and the anti-slip material is welded by the pressing roller while being guided by the anti-slip guide plate. The pressing roller is hollow and the anti-slip guide plate is preferably formed so that it has a protrusion jutting out to at least the anti-slip material side from the outer peripheral face of the pressing roller. In addition, when the pressing roller is hollow, a vent hole may be opened so as to supply cooling air into the roller. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【産業上の利用分野】
この発明は、パレットに滑り止め材を溶着する溶着装置における滑り止め材圧着ローラ装置に係り、詳しくは、荷物の運搬、保管に使用される合成樹脂製パレットの積載面に滑り止め材を溶着する際に滑り止め材の蛇行を防止し、密着強度を向上させるパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置に関するものである。
【0002】
【従来の技術】
一般に、木製パレットに比べて耐久性、衛生上等において優れている合成樹脂製パレットが多数使用されている。しかしながら、合成樹脂製パレットは滑りやすいという問題があり、この滑りを防止するために、合成樹脂製パレットの積載面に摩擦係数の大きな熱可塑性樹脂または合成ゴム等の帯状体または紐状体の滑り止め材を溶着する方法が取られている。
【0003】
図7は滑り止め材を表面に溶着した合成樹脂製パレットの一例を示す説明用斜視図である。図7に示すパレットPは、四隅とその中間、及び中心部にそれぞれ支柱1、2及び3を有し、前記支柱間をフォーク差込孔4とした四方差しパレットであり、帯状体または紐状体の滑り止め材SがパレットPの縁部と平行に設けられている。
【0004】
このような滑り止め材Sのパレットへの溶着は、パレットの表面の滑り止め材溶着面と滑り止め材の裏面との間に熱風を吹き付けて両者を溶融するとともに、パレットを移動させながら圧着ローラにより滑り止め材を押圧することによって溶着する方法が行われている。
【0005】
図8は、一般的な滑り止め材溶着装置の要部を示すもので、パレットを移動させるコンベア装置5と、滑り止め材供給装置から繰り出される滑り止め材をガイドするガイド筒6と、パレットの溶着面と滑り止め材の間に熱風を吹き付けるホットジェットガン7と、滑り止め材を押圧する圧着ローラ8とからなる。
【0006】
そして、コンベア装置5に載置したパレットPを図面の左方向に移動させながら、滑り止め材供給装置から繰り出され、ガイド筒6を通ってきた滑り止め材Sと、パレットの滑り止め溶着面にホットジェットガン7から熱風を吹き付けて溶融させ、圧着ローラ装置8により押圧することにより滑り止め材を溶着するものである。
【0007】
【発明が解決しようとする課題】
ところで、パレットの滑り止め材溶着面には、僅かな凹凸やヒケ(樹脂の収縮による変形)があったり、また、パレットを移動させながら滑り止めを溶着するために横揺れが生じることがあり、必ずしも滑り止め材を直線状に溶着することができなかった。また、パレットの表面に滑り止め材を溶着する溝を形成し、この溝内に滑り止め材を溶着する場合に、蛇行すると溝からはみ出すことがあり溶着不良となることがあった。特に、コストダウンを図るために、滑り止め材の肉厚を薄くすると、上記のような表面の凹凸やヒケあるいは横揺れの影響を受けやすく、均一な強度で直線状に溶着することができなかった。
【0008】
この発明はかかる現況に鑑みてなされたもので、肉厚の薄い滑り止め材を使用した場合にも、直線状に溶着できるとともに、均一な溶着強度が得られるパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置を提供せんとするものである。
【0009】
【課題を解決するための手段】
この発明は上記目的を達成するために次のような構成とした。即ち、この発明に係るパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置は、滑り止め材供給装置から繰り出された滑り止め材と、パレットの滑り止め材の溶着面に熱風を吹き付けて溶融させ、圧着ローラ装置により押圧することによって滑り止め材を溶着する滑り止め材溶着装置における滑り止め材圧着ローラ装置であって、押圧ローラの両側に滑り止め材案内板を配設し、前記滑り止め材案内板によって滑り止め材をガイドしながら溶着するようにしたことを特徴とする。押圧ローラを中空とし、滑り止め材案内板は、押圧ローラ外周面から少なくとも滑り止め材側に突出する突出部が有するように形成することが好ましい。
前記押圧ローラをスペーサを介してベアリングを内装した軸受円板に一体に固定し、前記押圧ローラ、スペーサ及び軸受円板にはそれぞれ連通する通気孔を設けてなり、滑り止め材案内板は、押圧ローラと軸受円板によってスペーサ外周面に形成される溝内に回転自在に装着する構成とすることができる。また、前記ベアリングに挿入される取付軸の一方を通気孔を有するパイプ状の取付軸とし、前記パイプ状取付軸から冷却用エアーを押圧ローラ内に送風するようにすることが好ましい。
【0010】
【作用】
滑り止め材案内板は、滑り止め材を挟持するようにしてガイドするから、滑り止め材の蛇行を防止することができる。押圧ローラを中空構造とし、通気孔を設けた場合には、内部の熱が放熱されて温度が上昇するのを押さえることができ、滑り止め材との粘着を防止するように働く。また、前記中空構造の押圧ローラ内に冷却用エアーを供給した場合には、押圧ローラを冷却することによって滑り止め材との粘着が防止されるとともに、一層滑り止め材の蛇行を防止することができる。
【0011】
【発明の実施の形態】
この発明を図示する実施形態に基づいて詳細に説明する。図1は滑り止め材圧着ローラの圧着ローラの正面図、図2は同じく圧着ローラの側面図、図3は滑り止め材圧着ローラ装置の底面斜視図、第4図は同じく断面図である。この滑り止め材圧着ローラ装置は、溶着装置本体に取り付けられ、昇降自在な昇降杆10と、冷却用エアー供給管20と、圧着ローラ30とからなる。
【0012】
前記圧着ローラ30は、滑り止め材を押圧する押圧ローラ31をスペーサ32、32を介して軸受円板33、33に固定してなり、前記スペーサ32、32の外周面に滑り止め材案内板34、34を介装し、前記軸受円板33、33の内周面にベアリング35、35を装着してなる。
【0013】
前記押圧ローラ31は、図5に示すように、円筒体31aの両端部に内向きフランジ31b、31bを設けてなる。前記内向きフランジ31b、31bには、2以上のネジ孔31cと1以上の通気孔31dが穿設されている。押圧ローラ31の幅寸法は、押圧する滑り止め材の幅寸法とほぼ同一に形成されている。
【0014】
前記スペーサ32、32は、ドーナツ状円板であって、内径が前記押圧ローラ31の内向きフランジ31b、31bの内径とほぼ同一であって、外径は前記押圧ローラ31の外径よりも小さく形成されている。前記スペーサ32、32は、押圧ローラ31と軸受円板33、33との間に溝を形成するとともに、押圧ローラ31と軸受円板33、33とを連結するものである。
【0015】
前記スペーサ32、32の外径は、滑り止め材案内板34、34の透孔に嵌合される大きさであって、前記押圧ローラ31に設けられたネジ孔31cと通気孔31dと連通するようにネジ孔32aと通気孔32bが設けられている。
【0016】
次に、前記軸受円板33、33は、スペーサ32、32と同じくドーナツ状円板であって、外径は前記押圧ローラ31とほぼ同じ大きさに形成されており、内径側にベアリング35が装着されている。このベアリング35に取付軸を挿入することによって昇降杆10に取り付けられる。軸受円板33、33にも、前記スペーサ32、32に設けられたネジ孔32aと通気孔32bと連通するようにネジ孔33aと通気孔33bが設けられている。
【0017】
前記滑り止め材案内板34、34は、図6示すように、全体が略長方形状であって、一方の短辺側を切り欠いて凹部34aを形成し、前記凹部34aの両側を係止片34dとするとともに、前記スペーサ32、32を嵌合する透孔34bを設けてなる。滑り止め材案内板34、34の下面34c、34cは、組み立てたとき前記押圧ローラ31、軸受円板33の外周面よりも内側に位置するように形成されており、押圧ローラ31よりも突出しているコーナー部34e、34eが滑り止め材をガイドする。
【0018】
滑り止め材案内板34、34の肉厚は、前記スペーサ32、32の肉厚よりも僅かに小さく形成されている。従って、滑り止め材案内板34、34は、押圧ローラ31と軸受円板33とによりスペーサ32、32の外周に形成される溝37内において回転可能である。
【0019】
上記構成にかかる押圧ローラ31、スペーサ32、32、軸受円板33、33及び滑り止め材案内板34、34は、次のようにして組み立てられる。即ち、押圧ローラ31の内向きフランジ31b、31bの外面にスペーサ32,32を当接し、スペーサ32、32の外周面に滑り止め材案内板34、34を装着し、さらに、スペーサ32、32の外面に軸受円板33、33を当接する。
【0020】
次いで、ボルト40を軸受円板33のネジ孔33a、スペーサ32のネジ孔32a及び押圧ローラ31のネジ孔31cに螺合させて締め付けることによって一体に組み立てた圧着ローラ30が形成される。このとき、軸受円板33の通気孔33b、スペーサ32の通気孔32b、押圧ローラ31の通気孔31dはそれぞれ連通することになる。
【0021】
このようにして組み立てられた圧着ローラ30を昇降杆10に取り付けるには、昇降杆10の下部に設けられた凹部に圧着ローラ30を挿入するとともに、滑り止め材案内板34、34の凹部34a内に昇降杆10の下部を嵌合し、係止片34d、34dを昇降杆10の側面に係止させる。次いで、昇降杆10の一方の軸受部10aにはムクの取付軸41をベアリング35に挿入することによって装着し、昇降杆10の他方の軸受部10aには、通気孔42aを有するパイプ状の取付軸42をベアリング35に挿入することによって装着する。
【0022】
このようにして圧着ローラを取り付けることによって、前記押圧ローラ31,スペーサ32及び軸受円板33は、取付軸41、42を軸にして回転可能となる。一方、滑り止め案内板34は、係止片34dが昇降杆10の側面に係止することにより回り止めとなる。前記取付軸42には、冷却用エアー供給管20を連結する。
【0023】
上記構成に係る滑り止め材圧着ローラ装置は、滑り止め材供給装置から繰り出される滑り止め材を滑り止め材案内板34のコーナー部34d、34dによって挟持するようにしてガイドするから、滑り止め材は常に押圧ローラ31の真下に案内される。従って、パレットが移動中に横揺れが生じても滑り止め材の蛇行を防止することができる。また、パレットの滑り止め材溶着面の凹凸やヒケに対しても、押圧ローラ31は確実に追従することができる。
【0024】
従来、肉厚の薄い滑り止め材を使用した場合には、ホットジェットガンから吹き付ける熱風によって一層柔らかくなり、蛇行しやすくなる。しかしながら、滑り止め材案内板34、34によってガイドされているから蛇行は防止される。また、押圧ローラ31は、中空構造とし通気孔を設けたから、放熱作用を有し、滑り止め材との粘着力を小さくすることができる。
【0025】
また、押圧ローラ31は、冷却用エアー供給管20から供給されるエアーによって常に冷却されているから、滑り止め材を冷却しながら押圧することになり、溶着強度を向上させることができるばかりでなく、滑り止め材と押圧ローラとの粘着が防止され、パレットと滑り止め材の密着が一層強固にすることができる。
【0026】
【発明の効果】
この発明によれば次のような効果を奏することができる。即ち、滑り止め材は滑り止め材案内板によってガイドされているから、蛇行が防止され、直線状に溶着することができる。特に、滑り止め材案内板による蛇行防止は、肉厚の薄い滑り止め材を使用した場合に顕著である。
また、この発明に係る滑り止め材圧着ローラ装置は、押圧ローラを中空に形成するとともに通気孔を設けて放熱させることによって滑り止め材との粘着が防止され密着強度を向上させることができる。押圧ローラ内に冷却用エアーを供給することによって押圧ローラは冷却され、滑り止め材との粘着がさらに防止される。
【図面の簡単な説明】
【図1】この発明に係る圧着ローラの正面図ある。
【図2】同じく側面図である。
【図3】昇降杆に取り付けた状態の滑り止め材圧着ローラ装置の斜視図である。
【図4】同じく滑り止め材圧着ローラ装置の断面図である。
【図5】押圧ローラの説明用斜視図である。
【図6】滑り止め材案内板の斜視図である。
【図7】滑り止め材を表面に溶着した合成樹脂製パレットの一例を示す説明用斜視図である。
【図8】従来の合成樹脂製パレットへの滑り止め材溶着装置の要部説明図である。
【符号の説明】
10:昇降杆
20:冷却用エアー供給管
30:圧着ローラ
31:押圧ローラ
32:スペーサ
33:軸受円板
34:滑り止め材案内板
35:ベアリング
37:溝
40:ボルト
41、42:取付軸
[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip material pressing roller device in a welding device for welding a non-slip material to a pallet, and more particularly, to welding a non-slip material to a loading surface of a synthetic resin pallet used for carrying and storing cargo. The present invention relates to a non-slip material pressing roller device in a non-slip material welding device for a pallet that prevents meandering of the non-slip material and improves adhesion strength.
[0002]
[Prior art]
Generally, a large number of synthetic resin pallets that are superior in durability, hygiene, etc. as compared with wooden pallets are used. However, there is a problem that the synthetic resin pallet is slippery. In order to prevent the slip, a belt-like or string-like material such as thermoplastic resin or synthetic rubber having a large coefficient of friction is applied to the loading surface of the synthetic resin pallet. A method of welding a stopper is used.
[0003]
FIG. 7 is an explanatory perspective view showing an example of a synthetic resin pallet in which a non-slip material is welded to the surface. The pallet P shown in FIG. 7 is a four-sided pallet having pillars 1, 2, and 3 at four corners, an intermediate part thereof, and a center part, and a fork insertion hole 4 between the pillars. A non-slip material S for the body is provided parallel to the edge of the pallet P.
[0004]
The welding of the non-slip material S to the pallet is performed by blowing hot air between the non-slip material welding surface of the pallet and the back surface of the non-slip material to melt the two, and moving the pallet while pressing the pressing roller. A method of welding by pressing a non-slip material by using a method has been used.
[0005]
FIG. 8 shows a main part of a general non-slip material welding device, which includes a conveyor device 5 for moving a pallet, a guide tube 6 for guiding a non-slip material fed from a non-slip material supply device, and a pallet for the pallet. It comprises a hot jet gun 7 for blowing hot air between the welding surface and the non-slip material, and a pressure roller 8 for pressing the non-slip material.
[0006]
Then, while moving the pallet P placed on the conveyor device 5 in the left direction of the drawing, the pallet P is unwound from the non-slip material supply device and has passed through the guide tube 6 and the non-slip welding surface of the pallet. Hot air is blown from a hot jet gun 7 to melt it, and is pressed by a pressure roller device 8 to weld a non-slip material.
[0007]
[Problems to be solved by the invention]
By the way, there may be slight unevenness and sink marks (deformation due to resin shrinkage) on the non-slip material welding surface of the pallet, or rolling may occur due to welding of the non-slip while moving the pallet. The anti-slip material could not always be welded linearly. Further, when a groove for welding a non-slip material is formed on the surface of the pallet, and the non-slip material is welded in this groove, if it is meandering, it may protrude from the groove, resulting in poor welding. In particular, if the thickness of the anti-slip material is reduced to reduce costs, the anti-slip material is susceptible to surface irregularities, sink marks or rolls as described above, and cannot be welded linearly with uniform strength. Was.
[0008]
The present invention has been made in view of such a situation, and even when a thin anti-slip material is used, a non-slip material can be welded in a straight line and a uniform anti-slip material welding device for a pallet can be obtained. It is intended to provide a stopper pressing roller device.
[0009]
[Means for Solving the Problems]
The present invention has the following configuration to achieve the above object. That is, the anti-slip material pressing roller device in the pallet anti-slip material welding device according to the present invention melts the anti-slip material fed from the anti-slip material supply device by blowing hot air onto the welding surface of the pallet anti-slip material. A non-slip material pressing roller device in a non-slip material welding device for welding a non-slip material by pressing with a pressure roller device, wherein a non-slip material guide plate is provided on both sides of the pressing roller, The non-slip material is welded while being guided by the material guide plate. It is preferable that the pressing roller is hollow and the anti-slip material guide plate is formed so as to have a protruding portion that protrudes from the outer peripheral surface of the pressing roller toward at least the anti-slip material.
The pressure roller is integrally fixed to a bearing disk containing a bearing via a spacer, and the pressure roller, the spacer, and the bearing disk are provided with vent holes communicating with each other. A configuration in which the roller and the bearing disk are rotatably mounted in a groove formed on the outer peripheral surface of the spacer. Further, it is preferable that one of the mounting shafts inserted into the bearing is a pipe-shaped mounting shaft having a ventilation hole, and cooling air is blown into the pressing roller from the pipe-shaped mounting shaft.
[0010]
[Action]
Since the non-slip material guide plate guides the non-slip material so as to sandwich the non-slip material, meandering of the non-slip material can be prevented. When the pressing roller has a hollow structure and is provided with a ventilation hole, the internal heat is radiated and the temperature can be prevented from rising, and the pressure roller works so as to prevent sticking to the non-slip material. Further, when the cooling air is supplied into the hollow-structured pressing roller, it is possible to prevent the adhesion with the anti-slip material by cooling the pressing roller and further prevent the anti-slip material from meandering. it can.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in detail based on an illustrated embodiment. 1 is a front view of the pressure roller of the non-slip material pressing roller, FIG. 2 is a side view of the same pressure roller, FIG. 3 is a bottom perspective view of the anti-slip material pressure roller device, and FIG. The anti-slip material pressure roller device is attached to the welding device main body, and includes a vertically movable lifting rod 10, a cooling air supply pipe 20, and a pressure roller 30.
[0012]
The pressure roller 30 has a pressing roller 31 for pressing a non-slip material fixed to bearing discs 33, 33 via spacers 32, 32, and a non-slip material guide plate 34 on the outer peripheral surface of the spacer 32, 32. , 34, and bearings 35, 35 are mounted on the inner peripheral surfaces of the bearing disks 33, 33.
[0013]
As shown in FIG. 5, the pressing roller 31 is provided with inward flanges 31b, 31b at both ends of a cylindrical body 31a. The inward flanges 31b, 31b are provided with two or more screw holes 31c and one or more air holes 31d. The width dimension of the pressing roller 31 is formed substantially the same as the width dimension of the anti-slip material to be pressed.
[0014]
The spacers 32, 32 are donut-shaped disks, and have an inner diameter that is substantially the same as the inner diameter of the inward flanges 31b, 31b of the pressing roller 31, and an outer diameter smaller than the outer diameter of the pressing roller 31. Is formed. The spacers 32, 32 form a groove between the pressing roller 31 and the bearing disks 33, 33 and connect the pressing roller 31 to the bearing disks 33, 33.
[0015]
The outer diameter of the spacers 32, 32 is large enough to fit into the through holes of the non-slip material guide plates 34, 34, and communicates with the screw holes 31c provided in the pressing roller 31 and the ventilation holes 31d. Screw hole 32a and ventilation hole 32b are provided.
[0016]
Next, the bearing disks 33, 33 are donut-shaped disks like the spacers 32, 32, and have an outer diameter substantially equal to the size of the pressing roller 31, and a bearing 35 on the inner diameter side. It is installed. The bearing 35 is attached to the elevating rod 10 by inserting an attachment shaft. The bearing disks 33, 33 are also provided with screw holes 33a and ventilation holes 33b so as to communicate with the screw holes 32a and ventilation holes 32b provided in the spacers 32, 32.
[0017]
As shown in FIG. 6, the non-slip material guide plates 34, 34 are generally rectangular in shape, and have one short side cut away to form a recess 34a. 34d, and a through hole 34b for fitting the spacers 32, 32 is provided. The lower surfaces 34c, 34c of the non-slip material guide plates 34, 34 are formed so as to be located inside the outer peripheral surfaces of the pressing roller 31 and the bearing disk 33 when assembled, and protrude from the pressing roller 31. Corner portions 34e, 34e guide the non-slip material.
[0018]
The thickness of the non-slip material guide plates 34, 34 is formed to be slightly smaller than the thickness of the spacers 32, 32. Accordingly, the non-slip material guide plates 34, 34 are rotatable in the grooves 37 formed on the outer periphery of the spacers 32, by the pressing roller 31 and the bearing disk 33.
[0019]
The pressing roller 31, the spacers 32, 32, the bearing disks 33, 33, and the non-slip material guide plates 34, 34 according to the above configuration are assembled as follows. That is, spacers 32, 32 are brought into contact with the outer surfaces of the inward flanges 31b, 31b of the pressing roller 31, and non-slip material guide plates 34, 34 are mounted on the outer peripheral surfaces of the spacers 32, 32. The bearing disks 33 are brought into contact with the outer surface.
[0020]
Next, the bolt 40 is screwed into the screw hole 33a of the bearing disk 33, the screw hole 32a of the spacer 32, and the screw hole 31c of the pressing roller 31, and tightened, thereby forming the pressure roller 30 which is integrally assembled. At this time, the ventilation hole 33b of the bearing disk 33, the ventilation hole 32b of the spacer 32, and the ventilation hole 31d of the pressing roller 31 communicate with each other.
[0021]
In order to attach the pressure roller 30 assembled in this manner to the lifting rod 10, the pressure roller 30 is inserted into a recess provided at the lower portion of the lifting rod 10, and the recess 34a of the anti-slip material guide plates 34, 34 is inserted. , The lower portion of the lifting rod 10 is fitted, and the locking pieces 34d, 34d are locked on the side surfaces of the lifting rod 10. Then, a mounting shaft 41 of Muku is mounted on one bearing 10a of the lifting rod 10 by inserting it into the bearing 35, and a pipe-shaped mounting having a vent hole 42a is mounted on the other bearing 10a of the lifting rod 10. The shaft 42 is mounted by inserting it into the bearing 35.
[0022]
By attaching the pressure roller in this manner, the pressing roller 31, the spacer 32, and the bearing disk 33 become rotatable about the mounting shafts 41 and 42. On the other hand, the non-slip guide plate 34 is prevented from rotating by the locking piece 34 d being locked to the side surface of the elevating rod 10. The cooling air supply pipe 20 is connected to the mounting shaft 42.
[0023]
The non-slip material pressure roller device according to the above configuration guides the non-slip material fed from the non-slip material supply device so that the non-slip material is sandwiched between the corner portions 34d and 34d of the non-slip material guide plate 34. It is always guided directly below the pressing roller 31. Therefore, even if the pallet is rolled while moving, the anti-slip material can be prevented from meandering. Further, the pressing roller 31 can reliably follow irregularities and sink marks on the non-slip material welding surface of the pallet.
[0024]
Conventionally, when a thin anti-slip material is used, the air becomes softer due to the hot air blown from a hot jet gun, which makes it easier to meander. However, meandering is prevented because the guide is guided by the non-slip material guide plates 34, 34. Further, since the pressing roller 31 has a hollow structure and is provided with a ventilation hole, the pressing roller 31 has a heat radiating action and can reduce the adhesive force with the anti-slip material.
[0025]
In addition, since the pressing roller 31 is constantly cooled by the air supplied from the cooling air supply pipe 20, the pressing roller 31 presses the anti-slip material while cooling, so that the welding strength can be improved, In addition, the adhesion between the non-slip material and the pressing roller is prevented, and the close contact between the pallet and the non-slip material can be further strengthened.
[0026]
【The invention's effect】
According to the present invention, the following effects can be obtained. That is, since the non-slip material is guided by the non-slip material guide plate, meandering is prevented and the non-slip material can be welded in a straight line. In particular, the prevention of meandering by the non-slip material guide plate is remarkable when a thin anti-slip material is used.
Further, in the anti-slip material pressing roller device according to the present invention, by forming the pressing roller in a hollow shape and providing a vent hole to radiate heat, adhesion to the anti-slip material can be prevented and the adhesion strength can be improved. By supplying cooling air into the pressing roller, the pressing roller is cooled, and the adhesion with the non-slip material is further prevented.
[Brief description of the drawings]
FIG. 1 is a front view of a pressure roller according to the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a perspective view of a non-slip material pressing roller device attached to a lifting rod.
FIG. 4 is a cross-sectional view of the anti-slip material pressure roller device.
FIG. 5 is an explanatory perspective view of a pressing roller.
FIG. 6 is a perspective view of a non-slip material guide plate.
FIG. 7 is an explanatory perspective view showing an example of a synthetic resin pallet in which a non-slip material is welded to the surface.
FIG. 8 is an explanatory view of a main part of a conventional apparatus for welding a non-slip material to a synthetic resin pallet.
[Explanation of symbols]
10: lifting rod 20: cooling air supply pipe 30: pressure roller 31: pressing roller 32: spacer 33: bearing disk 34: anti-slip material guide plate 35: bearing 37: groove 40: bolt 41, 42: mounting shaft

Claims (5)

滑り止め材供給装置から繰り出された滑り止め材と、パレットの滑り止め材の溶着面に熱風を吹き付けて溶融させ、圧着ローラ装置により押圧することによって滑り止め材を溶着する滑り止め材溶着装置における滑り止め材圧着ローラ装置であって、押圧ローラの両側に滑り止め材案内板を配設し、前記滑り止め材案内板によって滑り止め材をガイドしながら溶着するようにしたことを特徴とするパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置。In a non-slip material welding device that blows hot air to a non-slip material fed from a non-slip material supply device and a welding surface of a non-slip material of a pallet to melt and press the non-slip material by a pressing roller device, the non-slip material is welded. A pallet, which is a non-slip material pressure roller device, wherein a non-slip material guide plate is provided on both sides of a pressing roller, and the non-slip material guide plate guides the non-slip material to perform welding. Non-slip material pressure roller device in the non-slip material welding device. 押圧ローラを中空としたことを特徴とする請求項1記載のパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置。2. A non-slip material pressing roller device in a pallet anti-slip material welding device according to claim 1, wherein the pressing roller is hollow. 滑り止め材案内板は、押圧ローラ外周面から少なくとも滑り止め材側に突出する突出部が形成されていることを特徴とする請求項1または2に記載のパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置。The non-slip material for a pallet anti-slip material welding device according to claim 1, wherein the anti-slip material guide plate is formed with a protruding portion that protrudes from the outer peripheral surface of the pressing roller toward at least the anti-slip material. Material pressure roller device. 押圧ローラをスペーサを介してベアリングを内装した軸受円板に固定し、前記押圧ローラ、スペーサ及び軸受円板にはそれぞれ連通する通気孔を設けてなり、滑り止め材案内板は、押圧ローラと軸受円板との間のスペーサ外周面に形成される溝内に回転自在に装着してなることを特徴とする請求項1〜3のいずれか1項に記載のパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置。The pressing roller is fixed to a bearing disk containing a bearing via a spacer, and the pressing roller, the spacer, and the bearing disk are provided with communication holes, respectively. The slidable material welding apparatus for a pallet according to any one of claims 1 to 3, wherein the pallet is rotatably mounted in a groove formed on an outer peripheral surface of the spacer between the disk and the disk. Stopper pressure bonding roller device. 押圧ローラをスペーサを介してベアリングを内装した軸受円板に固定し、前記押圧ローラ、スペーサ及び軸受円板にはそれぞれ連通する通気孔を設けてなり、滑り止め材案内板は、押圧ローラと軸受円板によってスペーサ外周面に形成される溝内に回転自在に装着し、取付軸の一方側を通気孔を有するパイプ状の取付軸とし、前記パイプ状取付軸から冷却用エアーを押圧ローラ内に送風するようにしたことを特徴とする請求項1〜3のいずれか1項に記載のパレットの滑り止め材溶着装置における滑り止め材圧着ローラ装置。The pressing roller is fixed to a bearing disk containing a bearing via a spacer, and the pressing roller, the spacer, and the bearing disk are provided with communication holes, respectively. It is rotatably mounted in a groove formed on the outer peripheral surface of the spacer by a disk, and one side of the mounting shaft is a pipe-shaped mounting shaft having a ventilation hole, and cooling air is supplied from the pipe-shaped mounting shaft into the pressing roller. The non-slip material pressing roller device in the pallet anti-slip material welding device according to any one of claims 1 to 3, wherein air is blown.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009166469A (en) * 2007-12-17 2009-07-30 Miyawaki Sharyo Kogyo Kk Anti-slip material pressure bonding roller device in pallet anti-slip material welding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009166469A (en) * 2007-12-17 2009-07-30 Miyawaki Sharyo Kogyo Kk Anti-slip material pressure bonding roller device in pallet anti-slip material welding device

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