JP2013039752A - Plastic sheet small welding machine - Google Patents

Plastic sheet small welding machine Download PDF

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Publication number
JP2013039752A
JP2013039752A JP2011178547A JP2011178547A JP2013039752A JP 2013039752 A JP2013039752 A JP 2013039752A JP 2011178547 A JP2011178547 A JP 2011178547A JP 2011178547 A JP2011178547 A JP 2011178547A JP 2013039752 A JP2013039752 A JP 2013039752A
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Prior art keywords
plastic sheet
roller
anvil
horn
feed roller
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JP2011178547A
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JP5810464B2 (en
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Yoshihiro Deshimaru
子 丸 喜 博 弟
Takashi Suwa
訪 尊 諏
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Nippon Future Co Ltd
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Nippon Future Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining 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
    • B29C65/086—Joining 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 a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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 characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General 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
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the 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 intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Sheet Holders (AREA)
  • Making Paper Articles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a plastic sheet small welding machine that has no meandering.SOLUTION: The small welding machine includes: a horn that transmits ultrasonic vibration by an ultrasonic wave transmitter and a vibrator; a gear type roller anvil that is provided at a lower side of the horn and supports the lower side of a welding part of a plastic sheet and rotates; a spring that the horn biases to hold down the plastic sheet; a feed roller that is provided in front of the roller anvil and sends off by holding the plastic sheet with a plurality of driven rollers in a traveling direction; a plurality of meandering prevention rollers that are disposed to form a line at an intermediate position of the roller anvil and the feed roller along the traveling direction and press the top face of the plastic sheet; a positioning member that touches one side of the plastic sheet, and decides the insertion position of the plastic sheet; a discharge roller; and an electric motor with the speed control that drives the roller anvil, the feed rollers; and the discharge roller.

Description

本発明は、プラスチックシート小型溶着器に係り、より詳しくは、折り重ねたプラスチックシートの縁部を溶着してクリアファイルなどが製作できる小規模のプラスチックシート小型溶着器に関する。   The present invention relates to a small plastic sheet welder, and more particularly to a small plastic sheet small welder capable of producing a clear file or the like by welding edges of a folded plastic sheet.

従来、クリアシートなどの大量生産用として大型の超音波接合装置があったが、大型の超音波接合装置は、大量生産用の素材供給部、大型の超音波発信装置を備えており、少ロットのプラスチックシートの処理には操業面、製造コスト面で不向きであった。また、大型の超音波接合装置では、周波数が２０ｋＨｚと低く、融点の高いＰＥＴ等の樹脂は接着が困難であり、接着できたとしても接着部の外観が劣るという問題があった。従って、ＰＥＴ樹脂を含む高融点樹脂の処理が可能であるとともに、少ロットのクリアシートの作成ができ、クリアシートの溶着部に会社名や、宣伝用の文字や画像の挿入ができて事務所単位でも処理が可能なプラスチックシート溶着用小型溶着器の要請が強かった。   Previously, there was a large ultrasonic bonding device for mass production of clear sheets, etc., but the large ultrasonic bonding device is equipped with a mass supply material supply unit and a large ultrasonic transmission device. It was unsuitable for processing plastic sheets in terms of operation and manufacturing costs. Further, in a large ultrasonic bonding apparatus, there is a problem that a resin such as PET having a low frequency of 20 kHz and a high melting point is difficult to bond, and even if it can be bonded, the appearance of the bonded portion is inferior. Therefore, it is possible to process high melting point resins including PET resin, create a small lot of clear sheets, and insert company names, promotional characters and images into the welded portion of the clear sheets, and the office There was a strong demand for a compact welder for plastic sheet welding that could be processed in units.

特開平６−７１７８９号公報Japanese Patent Laid-Open No. 6-71789

本発明は、このような問題点を解決するためになされたもので、本発明の目的は、蛇行がなく使い勝手のよいプラスチックシート小型溶着器を提供することにある。   The present invention has been made to solve such problems, and an object of the present invention is to provide a plastic sheet small-sized welder that does not meander and is easy to use.

本発明によるプラスチックシート小型溶着器は、超音波発信器と振動子による超音波振動を伝達するホーンと、前記ホーンの下側に設けられ、プラスチックシートの溶着部の下側を支えて回転する歯車状のローラーアンビルと、前記ホーンがプラスチックシートを押さえ込むように付勢するバネと、前記ローラーアンビルの前方に設けられ、複数の従動ローラーとプラスチックシートを挟んで進行方向に送り出す送りローラーと、前記ローラーアンビルと前記送りローラーの中間位置に、プラスチックシートの進行方向に沿って一列に並んで設けられ、プラスチックシートの上面を押さえる複数個の蛇行防止ローラーと、前記プラスチックシートの一側に当接して、前記プラスチックシートの挿入位置を決める位置決め部材と、前記送りローラーを通過したプラスチックシートをさらに送り出す排出ローラーと、前記ローラーアンビルと前記送りローラーと前記排出ローラーを駆動する速度制御付き電動機と、が備えられることを特徴とする。   A plastic sheet compact welder according to the present invention includes an ultrasonic transmitter and a horn that transmits ultrasonic vibrations by a vibrator, and a gear that is provided on the lower side of the horn and rotates while supporting the lower side of the welded portion of the plastic sheet. Roller anvil, a spring that urges the horn to hold down the plastic sheet, a feed roller that is provided in front of the roller anvil, and that feeds in a traveling direction across a plurality of driven rollers and the plastic sheet, and the roller In an intermediate position between the anvil and the feed roller, arranged in a line along the direction of travel of the plastic sheet, a plurality of meandering prevention rollers pressing the upper surface of the plastic sheet, and abutting on one side of the plastic sheet, A positioning member for determining an insertion position of the plastic sheet; And further sends discharge roller a plastic sheet which has passed through the chromatography, a speed control with the motor for driving the said roller anvil feed roller and the discharge roller, characterized in that it is provided.

前記ローラーアンビルは、歯の外周面にプラスチックシートの溶着部に転写される文字、模様、画像が形成されていることを特徴とする。   The roller anvil is characterized in that characters, patterns, and images to be transferred to the welded portion of the plastic sheet are formed on the outer peripheral surface of the teeth.

前記超音波発信器は、周波数が３０〜５０ｋＨｚであることを特徴とする。   The ultrasonic transmitter has a frequency of 30 to 50 kHz.

本発明のプラスチックシート小型溶着器によれば、ローラーアンビルと送りローラーの中間の位置に、プラスチックシートの進行方向に沿って一列に並び、プラスチックシートの上面を押さえる複数の蛇行防止ローラーを設けたので、プラスチックシートが垂れ下がっても正面側（前方側）に逃げにくくなり、溶着部が湾曲してしまうことがなく、まっすぐに溶着ができる。また、バネでホーンが、プラスチックシートを押さえ込むようにしたので、はがれにくい確実な溶着ができる。従動ロールを２個設けたので、送りロールとプラスチックシートの接触面積を大きくでき、プラスチックシートのスリップが生じないようにできる。位置決め部材を設けたので、プラスチックシートの一側に当接する簡単な操作で、プラスチックシートの挿入位置を決めることができる。排出ローラーによりプラスチックシートが出口側に十分に送り出されるから、取り出しやすい。   According to the plastic sheet small-sized welder of the present invention, a plurality of meandering prevention rollers arranged in a line along the traveling direction of the plastic sheet and holding the upper surface of the plastic sheet are provided at an intermediate position between the roller anvil and the feeding roller. Even if the plastic sheet hangs down, it becomes difficult to escape to the front side (front side), and the welded portion is not curved, and the welding can be performed straight. In addition, since the horn presses the plastic sheet with a spring, reliable welding that is difficult to peel off can be achieved. Since two driven rolls are provided, the contact area between the feed roll and the plastic sheet can be increased, and the plastic sheet can be prevented from slipping. Since the positioning member is provided, the insertion position of the plastic sheet can be determined by a simple operation of abutting on one side of the plastic sheet. Since the plastic sheet is sufficiently sent to the outlet side by the discharge roller, it is easy to take out.

ローラーアンビルの歯の外周面にプラスチックシートの溶着部に転写される文字、模様、画像を形成したので、溶着部に自社製品のロゴなどを刻印したクリアファイルが製作できる。   Since the characters, patterns, and images transferred to the welded part of the plastic sheet are formed on the outer peripheral surface of the roller anvil teeth, a clear file can be produced with the logo of the company's product engraved on the welded part.

超音波発信器の周波数を３０〜５０ｋＨｚとしたので、ＰＥＴなど融点が高いプラスチックシートであっても良好に溶着できる。樹脂の融点は、例をあげればＰＰが１７０°、ＰＥが１３０°、ＰＥＴが２６０°である。   Since the frequency of the ultrasonic transmitter is set to 30 to 50 kHz, even a plastic sheet having a high melting point such as PET can be favorably welded. For example, the melting point of the resin is 170 ° for PP, 130 ° for PE, and 260 ° for PET.

本発明によるプラスチックシート小型溶着器の主要部概略図である。It is the principal part schematic of the plastic sheet small welder by this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本発明のプラスチックシート小型溶着器の斜視図である。It is a perspective view of the plastic sheet small welder of the present invention. 本発明のプラスチックシート小型溶着器の側面図である。It is a side view of the plastic sheet small welder of the present invention. 本発明のプラスチックシート小型溶着器の正面図である。It is a front view of the plastic sheet small welder of the present invention. 本発明のプラスチックシート小型溶着器の平面図である。It is a top view of the plastic sheet small welder of the present invention.

以下、図面を参照して、本発明のプラスチックシート小型溶着器について説明する。   Hereinafter, the plastic sheet compact welder of the present invention will be described with reference to the drawings.

図１は、本発明によるプラスチックシート小型溶着器の主要部概略図である。図１に示すように、プラスチックシート小型溶着器１は、超音波発信器２と、振動子８と、ホーン９と、ホーン９を押し付けるバネ１０と、ホーン９の下側にあって、プラスチックシート６の溶着部の下側を支えて回転するローラーアンビル４と、ローラーアンビル４の前方に設けられ、複数の従動ローラー１５と合わせてプラスチックシートを挟んで進行方向に送り出す送りローラー５と、ローラーアンビル４と送りローラー５の中間の位置に、プラスチックシート６の進行方向に沿って一列に並んで設けられ、プラスチックシート６の上面を押さえる複数個の蛇行防止ローラー１７と、プラスチックシート６の溶着位置を決める位置決め部材７と、を含んで構成される。ブースター３は、振動子８とホーン９を連結する振幅変換部品である。バネ１０の付勢力によって、ホーン９がプラスチックシート６を押さえ込む。ホーン９とローラーアンビル４に挟まれた位置でプラスチックシート６が超音波溶着される。   FIG. 1 is a schematic view of the main part of a plastic sheet compact welder according to the present invention. As shown in FIG. 1, the plastic sheet compact welder 1 includes an ultrasonic transmitter 2, a vibrator 8, a horn 9, a spring 10 that presses the horn 9, and a lower side of the horn 9. A roller anvil 4 that rotates while supporting the lower side of the welding portion 6, a feed roller 5 that is provided in front of the roller anvil 4, and that feeds the plastic sheet together with a plurality of driven rollers 15 in a traveling direction, and a roller anvil 4 and the feed roller 5 are arranged in a line along the traveling direction of the plastic sheet 6, and a plurality of meandering prevention rollers 17 for pressing the upper surface of the plastic sheet 6 and the welding position of the plastic sheet 6 are arranged. And a positioning member 7 to be determined. The booster 3 is an amplitude conversion component that connects the vibrator 8 and the horn 9. The horn 9 presses the plastic sheet 6 by the biasing force of the spring 10. The plastic sheet 6 is ultrasonically welded at a position sandwiched between the horn 9 and the roller anvil 4.

ローラーアンビル４は、外周部に歯が形成された歯車状をしており、外周部の歯の深さや個数を選定することで溶着の円滑化を計っている。また、ローラーアンビル４の歯の外周部に会社名や、宣伝用の文字や画像を刻印することでクリアファイル６ａのプラスチックシート６に会社名や、宣伝用の文字や画像を挿入することが出来る。ローラーアンビル４と軸を共用して、プラスチックシート６を進行方向に送る送りローラー５が備えられている。送りローラー５はゴム又はシリコーン製である。送りローラー５に対向して設けられる、従動ローラー１５は、プラスチックシート６を送りローラー５と上下に挟み込んで移動させる。従動ローラー１５は２個備えたので、１個の場合に比較して、プラスチックシート６と送りローラー５との接触面積を大きくできる。そのため、プラスチックシート６のスリップを防止できる。   The roller anvil 4 has a gear shape in which teeth are formed on the outer peripheral portion, and the welding is facilitated by selecting the depth and number of teeth on the outer peripheral portion. Further, the company name, advertising characters and images can be inserted into the plastic sheet 6 of the clear file 6a by imprinting the company name and advertising characters and images on the outer periphery of the teeth of the roller anvil 4. . A feed roller 5 is provided which shares a shaft with the roller anvil 4 and feeds the plastic sheet 6 in the traveling direction. The feed roller 5 is made of rubber or silicone. A driven roller 15 provided to face the feed roller 5 sandwiches and moves the plastic sheet 6 up and down with the feed roller 5. Since the two driven rollers 15 are provided, the contact area between the plastic sheet 6 and the feed roller 5 can be increased as compared with the case of one. Therefore, the slip of the plastic sheet 6 can be prevented.

クリアファイル６ａの溶着部は、クリアファイル６ａの奥側端に形成される。位置決め部材７は、プラスチックシート６の端面に当接して、プラスチックシート６の端面とホーン９との間隔を一定に保つ。ローラーアンビル４は、速度制御付き電動機１３で駆動される。駆動軸上には送りローラー５も装着されている。送りローラー５とローラーアンビル４は、同じ回転速度で駆動される。   The welded portion of the clear file 6a is formed at the back end of the clear file 6a. The positioning member 7 abuts on the end surface of the plastic sheet 6 and keeps the distance between the end surface of the plastic sheet 6 and the horn 9 constant. The roller anvil 4 is driven by an electric motor 13 with speed control. A feed roller 5 is also mounted on the drive shaft. The feed roller 5 and the roller anvil 4 are driven at the same rotational speed.

プラスチックシート６は、送りローラー５によって移動するが、送りローラー５と従動ローラー１５で押さえているだけでは、プラスチックシート６が蛇行しやすく、クリアファイル６ａの１側端と溶着部の間隔が変化して溶着ラインが波状になる。そこで、ローラーアンビル４と送りローラー５の中間位置にあって、プラスチックシート６の上面を押さえてプラスチックシート６の蛇行を防止する蛇行防止ローラー１７を設置した。蛇行防止ローラー１７は、進行方向に沿って複数個が一列に並んで設けられる。蛇行防止ローラー１７の数は樹脂の種類、厚さによって最適な個数が異なるが、進行方向に４〜７個設置すると蛇行がない良好な結果が得られた。   The plastic sheet 6 is moved by the feed roller 5, but the plastic sheet 6 is easy to meander only by being held by the feed roller 5 and the driven roller 15, and the distance between the one side end of the clear file 6a and the welded portion changes. As a result, the welding line becomes wavy. Therefore, a meandering prevention roller 17 is installed in the middle position between the roller anvil 4 and the feeding roller 5 to press the upper surface of the plastic sheet 6 and prevent the plastic sheet 6 from meandering. A plurality of meandering prevention rollers 17 are provided in a line along the traveling direction. The optimum number of meandering prevention rollers 17 varies depending on the type and thickness of the resin, but when 4 to 7 meandering rollers are installed in the traveling direction, good results with no meandering were obtained.

図２は、図１のＡ−Ａ断面を示すものである。ローラーアンビル４と送りローラー５の間に７個の蛇行防止ローラー１７が設置されている。蛇行防止ローラー１７を複数個設けたので、プラスチックシート６が正面側に垂れ下がって移動しようとするが、これが蛇行防止ローラー１７とプラスチックシート６との摩擦で抑えられる。排出ローラー１８は、送りローラー５を通過したプラスチックシートの後端をさらに送り出せる。排出ローラー１８は、速度制御付き電動機１３で駆動される。   FIG. 2 shows an AA cross section of FIG. Seven meandering prevention rollers 17 are installed between the roller anvil 4 and the feed roller 5. Since the plurality of meandering prevention rollers 17 are provided, the plastic sheet 6 hangs down to the front side, and this is suppressed by the friction between the meandering prevention roller 17 and the plastic sheet 6. The discharge roller 18 can further feed the rear end of the plastic sheet that has passed through the feed roller 5. The discharge roller 18 is driven by an electric motor 13 with speed control.

図３は、本発明のプラスチックシート小型溶着器１の斜視図であり、正面下部に操作パネルが設けられる。図４〜６は、本発明のプラスチックシート小型溶着器１の側面図、正面図、平面図である。図６は、クリアファイル６ａの大、中、小をプラスチックシート小型溶着器１で製作する場合の位置関係を示している。プラスチックシート６をプラスチックシート小型溶着器１に挿入する際、プラスチックシート６の一側を位置決め部材７に当接させるようにする。これによりプラスチックシート６の溶着位置が決まる。なお、装置を小型化したので、図６のような溶着では、クリアファイル６ａが装置からははみ出す形となる。   FIG. 3 is a perspective view of the plastic sheet compact welder 1 of the present invention, in which an operation panel is provided at the lower front. 4 to 6 are a side view, a front view, and a plan view of the plastic sheet compact welder 1 of the present invention. FIG. 6 shows the positional relationship when the large, medium and small clear files 6a are manufactured by the plastic sheet small-sized welder 1. When the plastic sheet 6 is inserted into the plastic sheet compact welder 1, one side of the plastic sheet 6 is brought into contact with the positioning member 7. Thereby, the welding position of the plastic sheet 6 is determined. Since the apparatus is downsized, the welding as shown in FIG. 6 causes the clear file 6a to protrude from the apparatus.

プラスチックシート小型溶着器をさらに詳しく説明する。プラスチックシート小型溶着器１は、幅４４０ｍｍ、奥行き４２０ｍｍ、高さ４００ｍｍの寸法に収めることが出来た。本実施例では、超音波発信器として４０ｋＨｚ、１５０Ｗのものを使用した。ローラーアンビル４は、径が７０ｍｍ、幅が１０ｍｍの円板で、外周部に歯を１００個設けて歯車状にした。   The plastic sheet compact welder will be described in more detail. The small plastic sheet welder 1 was able to be accommodated in dimensions of 440 mm in width, 420 mm in depth, and 400 mm in height. In this embodiment, an ultrasonic transmitter having a frequency of 40 kHz and 150 W was used. The roller anvil 4 was a disc having a diameter of 70 mm and a width of 10 mm, and 100 teeth were provided on the outer peripheral portion to form a gear shape.

プラスチックシート６の送り速度は最大４００ｍｍ／秒で、この場合、プラスチックシート６の長辺３１０ｍｍでは１．３秒、短辺２２０ｍｍでは約０．５秒で処理できた。プラスチックシート６の送り速度は、プラスチックシート６の厚みにより最適な速度がある。ローラーアンビル４の外周部の歯の高さは０．２５〜１．５ｍｍの範囲とした。外周部の歯の幅は０．８〜１．０ｍｍの範囲とした。ローラーアンビル４の外周面に「ＣＬＥＡＲ ＳＨＥＥＴ」の文字を刻印してプラスチックシートを処理した結果、溶着部に明瞭な文字を浮かび上がらせることができた。文字の刻印の状況は図２の引出し円の中に示す。なお、バネ１０によるホーン９の押し付け力は、２ｋｇｆ〜１０ｋｇｆとした。   The feeding speed of the plastic sheet 6 was a maximum of 400 mm / sec. In this case, the plastic sheet 6 could be processed in 1.3 seconds for the long side 310 mm and about 0.5 seconds for the short side 220 mm. The feeding speed of the plastic sheet 6 has an optimum speed depending on the thickness of the plastic sheet 6. The height of the teeth on the outer periphery of the roller anvil 4 was in the range of 0.25 to 1.5 mm. The width | variety of the tooth | gear of the outer peripheral part was made into the range of 0.8-1.0 mm. As a result of processing the plastic sheet by imprinting the characters “CLEAR SHEET” on the outer peripheral surface of the roller anvil 4, it was possible to make clear characters appear on the welded portion. The state of the character marking is shown in the drawer circle of FIG. The pressing force of the horn 9 by the spring 10 was 2 kgf to 10 kgf.

本発明のプラスチックシート小型溶着器１は、幅４４０ｍｍ、奥行き４２０ｍｍ、高さ４００ｍｍなので、普通の事務所内で使用でき、持ち運びも容易である。超音波発信器は、４０ｋＨｚ，１５０Ｗと従来の標準型２０ｋＨｚ、１２００Ｗと比較して大幅に容量を低減できた。プラスチックシートとしてはＰＰ（ポリプロピレン）が一般的であるが、ＰＥＴ（ポリエチレンテフタレート）、ポリエステル、再生シートなどの場合でも溶着性が向上して良好な外観が得られた。   Since the plastic sheet compact welder 1 of the present invention has a width of 440 mm, a depth of 420 mm, and a height of 400 mm, it can be used in an ordinary office and is easy to carry. The ultrasonic transmitter was able to greatly reduce the capacity compared to 40 kHz and 150 W and the conventional standard type 20 kHz and 1200 W. PP (polypropylene) is generally used as the plastic sheet, but even in the case of PET (polyethylene terephthalate), polyester, recycled sheet, and the like, the weldability is improved and a good appearance is obtained.

本実施例では、入側のプラスチックシート６を供給するフィーダーや、出側の溶着済みのプラスチックシート６を積み上げるパイラーが装備されないが、これらを付加してもよい。   In this embodiment, a feeder for supplying the plastic sheet 6 on the entry side and a pillar for stacking the plastic sheets 6 on the outlet side are not provided, but these may be added.

本発明は、使い勝手のよいプラスチックシート小型溶着器として好適である。   The present invention is suitable as an easy-to-use plastic sheet compact welder.

１ プラスチックシート小型溶着器
２ 超音波発信器
３ ブースター
４ ローラーアンビル
５ 送りローラー
６ プラスチックシート
６ａ クリアファイル
７ 位置決め部材
８ 振動子
９ ホーン
１０ バネ
１３ 電動機
１４ 電動機
１５ 従動ローラー
１６ 駆動ギヤ
１７ 蛇行防止ローラー
１８ 排出ローラー
DESCRIPTION OF SYMBOLS 1 Plastic sheet small welder 2 Ultrasonic transmitter 3 Booster 4 Roller anvil 5 Feed roller 6 Plastic sheet 6a Clear file 7 Positioning member 8 Vibrator 9 Horn 10 Spring 13 Electric motor 14 Electric motor 15 Driven roller 16 Drive gear
17 Meander prevention roller 18 Discharge roller

Claims (3)

超音波発信器と振動子による超音波振動を伝達するホーンと、
前記ホーンの下側に設けられ、プラスチックシートの溶着部の下側を支えて回転する歯車状のローラーアンビルと、
前記ホーンがプラスチックシートを押さえ込むように付勢するバネと、
前記ローラーアンビルの前方に設けられ、複数の従動ローラーとプラスチックシートを挟んで進行方向に送り出す送りローラーと、
前記ローラーアンビルと前記送りローラーの中間位置に、プラスチックシートの進行方向に沿って一列に並んで設けられ、プラスチックシートの上面を押さえる複数個の蛇行防止ローラーと、
前記プラスチックシートの一側に当接して、前記プラスチックシートの挿入位置を決める位置決め部材と、
前記送りローラーを通過したプラスチックシートを送り出す排出ローラーと、
前記ローラーアンビルと前記送りローラーと前記排出ローラーを駆動する速度制御付き電動機と、が備えられることを特徴とするプラスチックシート小型溶着器。
A horn for transmitting ultrasonic vibrations by an ultrasonic transmitter and a vibrator;
A gear-shaped roller anvil that is provided on the lower side of the horn and rotates while supporting the lower side of the welded portion of the plastic sheet;
A spring that urges the horn to hold down the plastic sheet;
A feed roller that is provided in front of the roller anvil and that feeds in a traveling direction across a plurality of driven rollers and a plastic sheet;
A plurality of meandering prevention rollers provided in a row along the direction of travel of the plastic sheet at an intermediate position between the roller anvil and the feed roller, and pressing the upper surface of the plastic sheet;
A positioning member that abuts on one side of the plastic sheet and determines the insertion position of the plastic sheet;
A discharge roller for feeding out the plastic sheet that has passed through the feed roller;
A plastic sheet compact welder comprising: the roller anvil, the feed roller, and an electric motor with speed control for driving the discharge roller.
前記ローラーアンビルは、歯の外周面にプラスチックシートの溶着部に転写される文字、模様、画像が形成されていることを特徴とする請求項１に記載のプラスチックシート小型溶着器。
2. The plastic sheet compact welder according to claim 1, wherein the roller anvil is formed with characters, patterns, and images to be transferred to a welded portion of the plastic sheet on an outer peripheral surface of a tooth.
前記超音波発信器は、周波数が３０〜４０ｋＨｚであることを特徴とする請求項１に記載のプラスチックシート溶着用小型溶着器。
The said ultrasonic transmitter is 30-40kHz in frequency, The small welder for plastic sheet welding of Claim 1 characterized by the above-mentioned.
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CN105904875A (en) * 2016-05-31 2016-08-31 联扬塑胶(深圳)有限公司 Light folder, light sheet and synthetic method of light sheet
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CN109228038A (en) * 2018-08-09 2019-01-18 施继良 A kind of intelligent feed supplementing device in plastic products melting process

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