JP4955429B2

JP4955429B2 - Pallet welding equipment

Info

Publication number: JP4955429B2
Application number: JP2007066642A
Authority: JP
Inventors: 禎道熊田; 正弘鮫島; 正治中山
Original assignee: Meiji Rubber and Chemical Co Ltd
Current assignee: Meiji Rubber and Chemical Co Ltd
Priority date: 2007-03-15
Filing date: 2007-03-15
Publication date: 2012-06-20
Anticipated expiration: 2027-03-15
Also published as: JP2008221762A

Description

本発明は、パレットの半製品を熱溶着して完成品のパレットとするパレット溶着装置、特に、低コストかつ簡易な構成によって、半製品の搬入および搬送と、完成品のパレットの搬出と、を行う技術に関する。 The present invention relates to a pallet welding apparatus in which a pallet semi-finished product is thermally welded to form a finished product pallet, and in particular, it is possible to carry in and transport the semi-finished product and carry out the finished product pallet with a low-cost and simple configuration. It relates to the technology to be performed.

荷物の運搬および保管に利用されるプラスチック製パレットは、寸法精度の高さからライン化が容易で安価であると共に、再生プラスチックからも成形可能であり、環境保護や衛生意識の高まりつつある近年では、再生不能かつ防虫対策が必要な木製パレットに代わって主流になりつつある。
このようなプラスチック製パレットには、その荷物の積載面に対して平行な面で２分割した半製品ごとに射出成形した後、パレット溶着装置に搬入し、これら半製品の両分割面同士を熱溶着（圧着）した後、パレット溶着装置から搬出し、以て接着剤等を用いずに完成品とするものがある。 In recent years, plastic pallets used for the transportation and storage of luggage are easy to line up due to their high dimensional accuracy, are inexpensive, and can be molded from recycled plastics. It is becoming mainstream instead of wooden pallets that are irreproducible and need insect control.
Such a plastic pallet is injection-molded for each semi-finished product divided in two on a plane parallel to the load carrying surface, and then carried into a pallet welding device, where both divided surfaces of the semi-finished products are heated. After welding (crimping), there is a product that is unloaded from the pallet welding apparatus and thus finished without using an adhesive or the like.

このようなパレット溶着装置としての特許文献１に記載のものでは、搬入機構により装置へ搬入された半製品を、搬送機構の半製品搬送部に保持し、半製品搬送部をモータの駆動力によって走行レールに沿って圧着位置付近まで案内することで、半製品を、圧着位置まで搬送している。
一方、圧着後の完成品は、搬出機構の一対のアームによって挟持した状態で、装置から搬出している。
特開平３−６１０２６号公報 In such a pallet welding device described in Patent Document 1, the semi-finished product carried into the device by the carry-in mechanism is held in the semi-finished product transport portion of the transport mechanism, and the semi-finished product transport portion is driven by the driving force of the motor. The semi-finished product is conveyed to the crimping position by guiding it to the vicinity of the crimping position along the traveling rail.
On the other hand, the finished product after crimping is unloaded from the apparatus while being sandwiched by a pair of arms of the unloading mechanism.
Japanese Patent Laid-Open No. 3-61026

しかしながら、特許文献１に記載のものでは、搬出機構に、完成品を挟持する一対のアームを設けているため、構造や制御が複雑となり、コスト高となるという問題点があった。
本発明は、以上のような従来の問題点に鑑みてなされたものであり、簡易かつ低コストな構成によって、熱溶着された完成品を搬出できるパレット溶着装置を提供することを目的とする。 However, in the thing of patent document 1, since a pair of arm which clamps a finished product was provided in the carrying-out mechanism, there existed a problem that structure and control became complicated and cost became high.
The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a pallet welding apparatus that can carry out a heat-welded finished product with a simple and low-cost configuration.

このため、本発明は、
パレットにおける荷物の積載面に対して平行な分割面で２分割して成形された一対の半製品を、各半製品の分割面を平行に対向させた状態で各分割面と平行な搬送経路上を搬送させる搬送手段と、
前記搬送手段によって所定位置まで搬送された一対の半製品を、夫々支持及び支持解除自由な一対の圧着枠と、
前記一対の圧着枠に対応する各半製品を支持させつつ前記分割面と垂直な方向への平行移動操作によって、前記分割面間に位置させた加熱板に対する該両分割面の平行な当接と、該当接によって溶融した前記両分割面の前記加熱板からの引き離しと、該加熱板を前記分割面間から退かした後の前記両分割面同士の溶着と、を順次行う溶着制御手段と、
を含んで構成されたパレット溶着装置であって、
前記溶着制御手段による一対の半製品同士の溶着後、
一方の圧着枠のみが溶着後のパレットを支持しつつ、半製品支持前の位置に戻り、該パレットの支持を解除後、該パレットを、該一方の圧着枠側の半製品の搬送経路上に押し出し、
前記搬送手段によって前記搬送路上を移動する搬送過程中の半製品によって、前記溶着後のパレットを押し出して搬出させる搬出制御手段
を備えた構成とした。 For this reason, the present invention
A pair of semi-finished products formed by dividing the pallet into two parts on a parallel plane with respect to the load carrying surface, on a conveying path parallel to each of the half-finished parts with the divided surfaces facing each other in parallel Conveying means for conveying
A pair of semi-finished products transported to a predetermined position by the transport means, a pair of crimping frames that can be supported and unsupported, respectively,
Parallel abutment of the two divided surfaces against a heating plate positioned between the divided surfaces by a parallel movement operation in a direction perpendicular to the divided surfaces while supporting the semi-finished products corresponding to the pair of crimp frames. A welding control means for sequentially separating the two divided surfaces melted by the contact from the heating plate and welding the two divided surfaces after the heating plate is retracted from between the divided surfaces;
A pallet welding apparatus comprising:
After welding a pair of semi-finished products by the welding control means,
While only one crimping frame supports the pallet after welding, it returns to the position before supporting the semifinished product, and after releasing the support of the pallet, the pallet is placed on the conveyance path of the semifinished product on the one crimping frame side. Extrude,
An unloading control means for pushing out and unloading the welded pallet by a semi-finished product in the process of being moved on the transfer path by the transfer means is provided.

以上の構成によって、半製品の搬送と、溶着後のパレットの搬出と、を共通の駆動機構によって行うことができるため、溶着後のパレットを一対のアームによって挟持するなどして搬出する必要がなくなり、構成が簡易となり、コストも低減できる。 With the above configuration, since it is possible to carry the semi-finished product and the pallet after welding by a common drive mechanism, it is not necessary to carry the pallet after welding by holding it between a pair of arms. Therefore, the configuration becomes simple and the cost can be reduced.

以下、本発明に係るパレット溶着装置（以下、単に「溶着装置」と記す）の実施形態について説明する。
図１は、本実施形態の溶着装置の概要を示す平面図、図２（ａ）は、同上の溶着装置に搬入される半製品Ｐ１とＰ２の平面図、図２（ｂ）は、図２（ａ）の半製品Ｐ１とＰ２の正面図、図２（ｃ）は、熱溶着後のパレットの平面図である。 Hereinafter, an embodiment of a pallet welding apparatus according to the present invention (hereinafter simply referred to as “welding apparatus”) will be described.
FIG. 1 is a plan view showing an outline of the welding apparatus of the present embodiment, FIG. 2 (a) is a plan view of semi-finished products P1 and P2 carried into the same welding apparatus, and FIG. 2 (b) is FIG. The front view of the semi-finished products P1 and P2 of (a), FIG.2 (c) is a top view of the pallet after heat welding.

図１に示す溶着装置１は、図２（ａ），（ｂ）に示す半製品Ｐ１，Ｐ２を搬入し、半製品Ｐ１の３行３列に並ぶ複数の凸部Ｒ１の各頂面（分割面Ｑ１）と、半製品Ｐ２の３行３列に並ぶ複数の凸部Ｒ２の各頂面（分割面Ｑ２）と、を相互に熱溶着し、図２（ｃ）に示すような完成品のパレットＰとして搬出するものである。各凸部Ｒ１と凸部Ｒ２とは、相互結合によって、パレットＰの各支柱Ｒを形成する。 The welding apparatus 1 shown in FIG. 1 carries in the semi-finished products P1 and P2 shown in FIGS. 2A and 2B, and each top surface (divided) of the plurality of convex portions R1 arranged in 3 rows and 3 columns of the semi-finished product P1. The surface Q1) and the top surfaces (divided surfaces Q2) of the plurality of convex portions R2 arranged in 3 rows and 3 columns of the semi-finished product P2 are heat-welded to each other to obtain a finished product as shown in FIG. It is carried out as a pallet P. Each convex part R1 and convex part R2 form each support | pillar R of the pallet P by mutual coupling.

すなわち、パレットＰは、溶着装置１へ搬入される前に、荷物の積載面に対して平行かつ各支柱Ｒを通る分割面Ｑ１，Ｑ２にて２分割された半製品Ｐ１，Ｐ２の状態として成形され、溶着装置１での熱溶着によって完成品のパレットＰとされる。
溶着装置１は、図１に示すように、パレットＰの製造工程順に、搬入部３ａ，３ｂと、搬送部５ａ，５ｂと、圧着部７と、を備えている。 That is, the pallet P is formed as a state of the semi-finished products P1 and P2 that are divided into two by the divided surfaces Q1 and Q2 that are parallel to the loading surface of the luggage and pass through the support columns R before being carried into the welding apparatus 1. The finished product pallet P is formed by heat welding in the welding apparatus 1.
As shown in FIG. 1, the welding apparatus 1 includes carry-in parts 3 a and 3 b, conveyance parts 5 a and 5 b, and a crimping part 7 in the order of the manufacturing process of the pallet P.

搬入部３ａ，３ｂは、夫々、半製品Ｐ１，Ｐ２を、溶着装置１へ搬入するものである。
搬送部５ａは、搬入部３ａから半製品Ｐ１を受け取って、圧着部７へ搬送するものであり、搬送部５ｂは、搬入部３ｂから半製品Ｐ２を受け取って、圧着部７へ搬送するものである。
圧着部７は、圧着枠７ａ，７ｂによって夫々半製品Ｐ１，Ｐ２を支持した状態で、半製品Ｐ１，Ｐ２同士を熱溶着するものである。 The carry-in units 3a and 3b carry the semi-finished products P1 and P2 into the welding apparatus 1, respectively.
The transport unit 5a receives the semi-finished product P1 from the carry-in unit 3a and transports it to the crimping unit 7. The transport unit 5b receives the semi-finished product P2 from the carry-in unit 3b and transports it to the crimping unit 7. is there.
The crimping part 7 heat-welds the semifinished products P1 and P2 with the semifinished products P1 and P2 supported by the crimping frames 7a and 7b, respectively.

また、溶着装置１の搬送方向（図示右側から左側へ向かう方向）下流側には、溶着後のパレットＰを溶着装置１から搬出する一対のコンベア９ａ，９ｂが、圧着方向（搬送方向と直交する水平方向）に対向して配設されている。
搬入部３ａは、半製品Ｐ１を、分割面Ｑ１が圧着方向内方を向いた状態で、コンベア等を介して、搬送方向上流側から溶着装置１へ搬入する。そして、半製品Ｐ１がストッパー１１へ当接し、該当接が到達監視用センサ（図示せず）にて検出されると、作動シリンダ等を介して、半製品Ｐ１を圧着方向内方へスライドさせ、搬送部５ａへと引き渡す。 A pair of conveyors 9a and 9b for carrying the welded pallet P out of the welding device 1 is provided downstream of the welding device 1 in the conveyance direction (the direction from the right side to the left side in the drawing). (Horizontal direction).
The carry-in part 3a carries the semi-finished product P1 into the welding apparatus 1 from the upstream side in the transport direction via a conveyor or the like with the dividing surface Q1 facing inward in the crimping direction. Then, when the semi-finished product P1 comes into contact with the stopper 11, and the corresponding contact is detected by an arrival monitoring sensor (not shown), the semi-finished product P1 is slid inward in the pressure-bonding direction via an operating cylinder, etc. Delivered to the transport unit 5a.

ここで、搬入部３ａでは、半製品Ｐ１の荷物の積載面および分割面Ｑ１を、圧着方向に対向した一対のガイド板（図示せず）の間に挟まって案内する構成となっており、半製品Ｐ１は、該ガイド板と共に上述のように圧着方向内方へスライドする。
なお、搬入部３ｂは、搬入部３ａと圧着方向に対称の構成であるため、説明を省略する。 Here, the carry-in part 3a is configured to guide the loading surface and the dividing surface Q1 of the semi-finished product P1 sandwiched between a pair of guide plates (not shown) opposed to each other in the crimping direction. The product P1 slides inward in the pressing direction together with the guide plate as described above.
In addition, since the carrying-in part 3b is a structure symmetrical with the carrying-in part 3a and a crimping | compression-bonding direction, description is abbreviate | omitted.

以下、搬送部５ａの構成について詳細に説明する。なお、搬送部５ｂは、基本的には搬送部５ａと圧着方向に対称の構成であるため、説明を省略する。
図３は、搬送部５ａの平面図、図４は、搬送部５ａの側面図であり、図３（ａ）および図４（ａ）は、半製品Ｐ１の搬送開始前の状態、図３（ｂ）および図４（ｂ）は、半製品Ｐ１の搬送完了後の状態である。 Hereinafter, the configuration of the transport unit 5a will be described in detail. In addition, since the conveyance part 5b is a structure symmetrical with the conveyance part 5a fundamentally in the crimping | compression-bonding direction, description is abbreviate | omitted.
3 is a plan view of the transport unit 5a, FIG. 4 is a side view of the transport unit 5a, and FIGS. 3 (a) and 4 (a) show the state before the transport of the semi-finished product P1, FIG. FIG. 4B and FIG. 4B show a state after the conveyance of the semi-finished product P1 is completed.

搬送部５ａは、図３および図４に示すように、搬送方向に延びて溶着装置１の本体に固定されたレール１５と、レール１５上を搬送方向に滑走する第１移動体１７と、搬送方向に延びて搬送方向上流側の端部が第１移動体１７の上面に固定されたレール１９と、レール１９上を搬送方向に滑走すると共に搬入部３ａから受け取った半製品Ｐ１をロック（保持）する第２移動体２１と、を備えている。 As shown in FIGS. 3 and 4, the transport unit 5 a includes a rail 15 that extends in the transport direction and is fixed to the main body of the welding apparatus 1, a first moving body 17 that slides on the rail 15 in the transport direction, The rail 19 extending in the direction and having the upstream end in the transport direction fixed to the upper surface of the first moving body 17 is slid on the rail 19 in the transport direction and the semi-finished product P1 received from the carry-in portion 3a is locked (held) ) Second moving body 21.

このような構成により、第２移動体２１のストローク値は、第１移動体１７のレール１５上の往復動距離と、第２移動体２１のレール１９上の往復動距離と、の合計値となる。
なお、レール１５と第１移動体１７とによって、また、レール１９と第２移動体２１とによって、夫々リニアモーションガイドが構成されており、上記滑走が円滑化されている。 With such a configuration, the stroke value of the second moving body 21 is the sum of the reciprocating distance of the first moving body 17 on the rail 15 and the reciprocating distance of the second moving body 21 on the rail 19. Become.
The rail 15 and the first moving body 17 and the rail 19 and the second moving body 21 constitute a linear motion guide, respectively, and the above-described sliding is smoothed.

第２移動体２１は、本体２３と、回転軸部２５と、係止部２７と、を含んで構成されている。
本体２３には、搬送方向と平行に配置された回転軸部２５が、本体２３より搬送方向下流へ突出した状態で、該突出量を制御可能に軸支されている。
回転軸部２５の先端部からは、回転軸部２５に対して直交して、係止部２７が延びている。 The second moving body 21 includes a main body 23, a rotating shaft portion 25, and a locking portion 27.
A rotation shaft portion 25 arranged in parallel with the transport direction is pivotally supported on the main body 23 in a state of projecting downstream from the main body 23 in the transport direction so that the protrusion amount can be controlled.
A locking portion 27 extends from the distal end portion of the rotation shaft portion 25 so as to be orthogonal to the rotation shaft portion 25.

なお、上記回転軸部２５の回動および突出量制御の各駆動源として、夫々、第１，第２のエアシリンダ（共に図示せず）が、本体２３に取り付けられている。
搬送部５ａでの半製品Ｐ１の搬送は、以下のように行う。
まず、第２移動体２１がその往復路の搬送方向上流側の端部に位置したことをセンサ（図示せず）で検出した状態で、半製品Ｐ１が、搬入部３ａから第２移動体２１の往復路上に送られ、その後、第２移動体２１が搬送方向下流側へ移動する。これにより、まず、図３（ａ）および図４（ａ）に示すように、本体２３が、半製品Ｐ１の搬送方向上流側の端部に当接する。 Note that first and second air cylinders (both not shown) are attached to the main body 23 as drive sources for the rotation and protrusion amount control of the rotary shaft 25.
The transport of the semi-finished product P1 by the transport unit 5a is performed as follows.
First, the semi-finished product P1 is moved from the carry-in part 3a to the second moving body 21 in a state where the sensor (not shown) detects that the second moving body 21 is positioned at the upstream end in the transport direction of the round-trip path. Then, the second moving body 21 moves downstream in the transport direction. Thereby, first, as shown to Fig.3 (a) and FIG.4 (a), the main body 23 contact | abuts the edge part of the conveyance direction upstream of the semi-finished product P1.

第２移動体２１は、該当接後も搬送方向下流への移動を継続し、これにより、本体２３が半製品Ｐ１の押圧搬送を開始する。
ここで、該搬送開始直後の通過監視用センサ（図示せず）による搬送の検出に伴って、回転軸部２５は、係止部２７が鉛直上向きの姿勢から圧着方向外方向きの姿勢となるように９０°回動しつつ、本体２３へ引っ込む。これにより、本体２３と係止部２７とが、半製品Ｐ１の凸部Ｒ１（搬送方向最上流側の凸部Ｒ１）を搬送方向に挟持し、半製品Ｐ１をロックする。 The second moving body 21 continues to move downstream in the transport direction even after the contact, thereby causing the main body 23 to start pressing and transporting the semi-finished product P1.
Here, with the detection of conveyance by a passage monitoring sensor (not shown) immediately after the conveyance is started, the rotation shaft portion 25 changes the posture of the locking portion 27 from the vertically upward posture to the outward direction of the crimping direction. In this way, it is retracted into the main body 23 while rotating 90 °. Thereby, the main body 23 and the latching | locking part 27 clamp the convex part R1 (convex part R1 of the conveyance direction most upstream side) of the semi-finished product P1 in a conveyance direction, and lock the semi-finished product P1.

そして、図３（ｂ）および図４（ｂ）に示す状態となるように、第１移動体１７をレール１５の搬送方向下流側の端部まで滑走させると共に、第２移動体２１をレール１９の搬送方向下流側の端部まで滑走させ、第２移動体２１にロックされた状態で半製品Ｐ１を圧着部７へと搬送する。
ここで、図５（ａ）に示すように、搬入部３ａの搬送方向下流端部から圧着部７に至るまで、半製品Ｐ１の搬送経路の圧着方向内側にて、上側と下側とに夫々上下動自由なガイド２８，２９が設けられ、半製品Ｐ１は、これらガイド２８，２９に沿って案内されつつ搬送されるようになっている。 Then, the first moving body 17 is slid to the end portion on the downstream side in the transport direction of the rail 15 so that the state shown in FIGS. 3B and 4B is obtained, and the second moving body 21 is moved to the rail 19. The semi-finished product P <b> 1 is transported to the crimping portion 7 while being locked to the second moving body 21.
Here, as shown in FIG. 5 (a), from the downstream end in the conveyance direction of the carry-in part 3a to the crimping part 7, on the inner side in the crimping direction of the conveyance path of the semi-finished product P1, respectively on the upper side and the lower side. Guides 28 and 29 that can freely move up and down are provided, and the semi-finished product P1 is conveyed while being guided along these guides 28 and 29.

該ガイド２８，２９による半製品Ｐ１の案内には、半製品Ｐ１の形状が関係しており、半製品Ｐ１は、成形後に金型から抜き出せるように、図示はしないが、分割面Ｑ１と連接する面が、分割面Ｑ１に対して鈍角（９７〜９８°程度）をなし、いわゆる抜きテーパを形成している。
したがって、半製品Ｐ１が第２移動体２１の本体２３によって搬送方向下流へ押圧されると、分割面Ｑ１は、上記抜きテーパの作用によって、搬送方向下流側ほど圧着方向内方へ寄るように搬送方向に対して傾斜し、その結果、圧着方向内側のガイド２８，２９に案内されるのである。 The guide of the semi-finished product P1 by the guides 28 and 29 is related to the shape of the semi-finished product P1, and the semi-finished product P1 is connected to the dividing surface Q1 (not shown) so that it can be extracted from the mold after molding. The surface to be made has an obtuse angle (about 97 to 98 °) with respect to the dividing surface Q1, and forms a so-called draft taper.
Therefore, when the semi-finished product P1 is pressed downstream in the transport direction by the main body 23 of the second moving body 21, the dividing surface Q1 is transported so as to approach the inner side in the pressure-bonding direction toward the downstream side in the transport direction due to the action of the above-described taper. As a result, it is guided by the guides 28 and 29 on the inner side in the crimping direction.

これにより、半製品Ｐ１の搬送経路の圧着方向外側にはガイドの配設が不要となるため、コストを最小限に抑えた簡易な構成によって、安定して半製品Ｐ１を案内することができる。
なお、第１移動体１７は、レール１５の下方に配設されたモータおよびチェーンコンベア（共に図示せず）を駆動源とし、第２移動体２１は、これに備えられた流体圧シリンダとしての第３のエアシリンダ（図示せず）を駆動源とする。該モータによって、第１移動体１７のレール１５上の位置を微調整可能となり、ストローク量一定の該第３のエアシリンダによって、第２移動体２１を搬送方向下流へ迅速に移動可能となることで、半製品Ｐ１の搬送において精度と速度とを両立できる。 This eliminates the need for a guide on the outer side in the pressure-bonding direction of the transport path of the semi-finished product P1, so that the semi-finished product P1 can be stably guided with a simple configuration with a minimum cost.
The first moving body 17 uses a motor and a chain conveyor (both not shown) arranged below the rail 15 as drive sources, and the second moving body 21 serves as a fluid pressure cylinder provided therein. A third air cylinder (not shown) is used as a drive source. The motor can finely adjust the position of the first moving body 17 on the rail 15, and the third air cylinder with a constant stroke amount can quickly move the second moving body 21 downstream in the transport direction. Thus, both accuracy and speed can be achieved in conveying the semi-finished product P1.

係止部２７は、回転軸部２５に対する軸方向位置を手動調節可能に構成するのがよい。これにより、パレットの種類によって異なる支柱のクランプ幅に対応して、係止部２７を予め位置調整すればよく、回転軸部２５の本体２３に対するストローク量を最小限に留めることができ、小型で低コストのアクチュエータを使用できる。
以下、圧着部７の構成について詳細に説明する。 The engaging portion 27 is preferably configured so that the axial position with respect to the rotating shaft portion 25 can be manually adjusted. Accordingly, the position of the locking portion 27 may be adjusted in advance in accordance with the clamp width of the column depending on the type of the pallet, and the stroke amount of the rotating shaft portion 25 with respect to the main body 23 can be minimized. Low cost actuators can be used.
Hereinafter, the configuration of the crimping portion 7 will be described in detail.

圧着部７は、図１に示すように、半製品Ｐ１を搬送部５ａから受け取って圧着方向内方に支持する圧着枠７ａと、半製品Ｐ２を搬送部５ｂから受け取って圧着方向内方に支持する圧着枠７ｂと、を圧着方向に対向させて備えている。
また、両面を圧着方向に対して直交させた加熱板３０が、搬送部５ａ，５ｂ間の位置と、搬送方向下流側の圧着枠７ａ，７ｂ間の位置と、を往復動可能に配設されている。 As shown in FIG. 1, the crimping part 7 receives the semi-finished product P1 from the transport part 5a and supports it inward in the crimping direction, and receives the semi-finished product P2 from the transport part 5b and supports it in the crimping direction. A crimping frame 7b to be opposed to the crimping direction.
Further, a heating plate 30 having both surfaces orthogonal to the crimping direction is disposed so as to be able to reciprocate between a position between the conveying portions 5a and 5b and a position between the crimping frames 7a and 7b on the downstream side in the conveying direction. ing.

以下、圧着枠７ａの構成についてのみ説明し、圧着枠７ｂは、基本的に圧着枠７ａと圧着方向に対称な構成であるため、説明を省略する。
圧着枠７ａは、図６，図７に示すように、複数のピン３１を、圧着方向内方へ向けて突設させて備えている。
また、圧着枠７ａには、各ピン３１との干渉を避けつつ圧着方向内方へ突き出し可能な複数の突当板３７が設けられている。なお、圧着枠７ｂ側には、突当板３７は配設されていない。 Hereinafter, only the configuration of the crimping frame 7a will be described, and the crimping frame 7b is basically symmetrical with the crimping frame 7a in the crimping direction, and thus the description thereof is omitted.
As shown in FIGS. 6 and 7, the crimping frame 7 a includes a plurality of pins 31 that protrude inward in the crimping direction.
The crimping frame 7 a is provided with a plurality of abutting plates 37 that can project inward in the crimping direction while avoiding interference with the pins 31. Note that the abutting plate 37 is not disposed on the side of the crimping frame 7b.

さらに、圧着枠７ａの四方の周端部には、リニアモーションガイド（図示せず）を介して、複数のスライド部材３９が、圧着枠７ａの各辺長手方向と直交する方向にスライド自由に取り付けられている。
各スライド部材３９の端部には、爪部材４１の中間部が回動自由に軸支されている。そして、各爪部材４１の外側の端部は、スライド部材３９に隣接して設けられた作動シリンダ（図示せず）の端部に連結され、該作動シリンダの駆動によって、各爪部材４１が回転駆動される構成とされている。 Furthermore, a plurality of slide members 39 are slidably attached to the four peripheral edges of the crimping frame 7a in a direction orthogonal to the longitudinal direction of each side of the crimping frame 7a via a linear motion guide (not shown). It has been.
An intermediate portion of the claw member 41 is pivotally supported at the end portion of each slide member 39 so as to freely rotate. The outer end of each claw member 41 is connected to the end of an operating cylinder (not shown) provided adjacent to the slide member 39, and each claw member 41 is rotated by driving the operating cylinder. It is set as the structure driven.

一方、半製品Ｐ１には、図２に示すように、隣接する凸部Ｒ１間の部分を分割面Ｑ１と直交する方向に貫通して、楕円形状の断面を有する複数の貫通孔Ｓが、圧着枠７ａの各ピン３１の配置位置と対応して形成されている。
かかる構成において、図６（ａ）に示す搬送部５ａの第２移動体２１によるロック状態の半製品Ｐ１の各貫通孔Ｓに、図６（ｂ）に示すように、圧着枠７ａの各ピン３１を、圧着方向外側（荷物の積載面側）から挿入し、突当板３７を、半製品Ｐ１の荷物の積載面に当接すると、半製品Ｐ１は圧着枠７ａに対して位置決めされる。 On the other hand, as shown in FIG. 2, the semi-finished product P1 has a plurality of through-holes S having an elliptical cross section that penetrates a portion between adjacent convex portions R1 in a direction perpendicular to the dividing surface Q1. It is formed corresponding to the arrangement position of each pin 31 of the frame 7a.
In this configuration, as shown in FIG. 6B, each pin of the crimping frame 7a is inserted into each through-hole S of the semi-finished product P1 locked by the second moving body 21 of the transport unit 5a shown in FIG. When 31 is inserted from the outer side in the crimping direction (loading surface side of the load) and the abutting plate 37 is brought into contact with the load surface of the load of the semi-finished product P1, the semi-finished product P1 is positioned with respect to the pressing frame 7a.

そして、該位置決め状態で、各スライド部材３９のスライドによって、各爪部材４１の内側の端部が、図６（ｃ）に示すように、半製品Ｐ１の相互隣接する凸部Ｒ１間に対して夫々外側（半製品Ｐ１の四方）から挿入され、半製品Ｐ１の圧着方向内方への脱落を防止する。
さらに、各爪部材４１の上記凸部Ｒ１間へ挿入された部分は、半製品Ｐ１を圧着方向外方へ押圧するように、圧着方向外方へ向けて回動し、これにより、半製品Ｐ１を、各爪部材４１と突当板３７とによって、圧着方向に挟持する。 And in this positioning state, as shown in FIG.6 (c), the edge part inside each nail | claw member 41 with respect to between the adjacent convex parts R1 of the semi-finished product P1 by sliding of each slide member 39 is carried out. Each is inserted from the outside (the four sides of the semi-finished product P1) to prevent the semi-finished product P1 from falling out inward in the crimping direction.
Further, the portion of each claw member 41 inserted between the convex portions R1 is rotated outward in the press-bonding direction so as to press the semi-finished product P1 outward in the press-bonding direction. Are clamped in the crimping direction by the claw members 41 and the abutting plate 37.

このようにして、半製品Ｐ１を、各ピン３１によって位置決めした状態で、各爪部材４１と突当板３７とによって挟持し、強固に支持（ロック）する。
なお、上記圧着枠７ａの各ピン３１による位置決め完了後、上記第２移動体２１による半製品Ｐ１のロックと逆の動作を行うことで、第２移動体２１による半製品Ｐ１のロックを解除し、第２移動体２１は、圧着枠７ａへ半製品Ｐ１を引き渡して、その往復路の搬送方向上流側の端部に復帰する。 In this manner, the semi-finished product P <b> 1 is sandwiched between the claw members 41 and the abutting plates 37 in a state where the semi-finished product P <b> 1 is positioned by the pins 31, and is firmly supported (locked).
In addition, after the positioning by the respective pins 31 of the crimping frame 7a is completed, the lock of the semi-finished product P1 by the second moving body 21 is released by performing an operation reverse to the locking of the semi-finished product P1 by the second moving body 21. The second moving body 21 delivers the semi-finished product P1 to the crimping frame 7a and returns to the end of the reciprocating path upstream in the transport direction.

以下、溶着装置１に搬入された半製品Ｐ１，Ｐ２を相互に熱溶着し、パレットＰとして搬出する工程について、図８を参照して説明する。なお、圧着枠７ａ，７ｂの図示は省略する。
まず、半製品Ｐ１，Ｐ２を夫々圧着枠７ａ，７ｂに支持（ロック）した状態で、図５（ｂ）の図中矢印に示すように、圧着枠７ａ側および圧着枠７ｂ側双方のガイド２８，２９を夫々上方、下方に移動して圧着枠７ａ，７ｂの圧着方向内方への移動方向から退避させた後、半製品Ｐ１，Ｐ２を、図８（ａ）の矢印Ａに示すように、圧着方向内方へ直線移動させ、相互接近させる。 Hereinafter, the process of thermally welding the semi-finished products P1 and P2 carried into the welding apparatus 1 and carrying them out as a pallet P will be described with reference to FIG. Illustration of the crimp frames 7a and 7b is omitted.
First, in a state where the semi-finished products P1 and P2 are supported (locked) on the crimping frames 7a and 7b, respectively, as shown by the arrows in FIG. 5B, guides 28 on both the crimping frame 7a side and the crimping frame 7b side. , 29 are moved upward and downward, respectively, and retracted from the inwardly moving direction of the crimping frames 7a, 7b, the semi-finished products P1, P2 are then moved as shown by the arrow A in FIG. Then, move them inward in the crimping direction and move them closer together.

これと共に、もしくはこれに先立ち、加熱板３０を、搬送部５ａ，５ｂ間の位置から、図８（ａ）の矢印Ｂに示すように、圧着枠７ａ，７ｂ間すなわち半製品Ｐ１，Ｐ２間へ挿入する。そして、図８（ｂ）に示すように、分割面Ｑ１，Ｑ２を、加熱板３０へ当接させ、溶融する。
なお、圧着枠７ａ，７ｂ同士の接近時には、搬送部５ａ，５ｂのレール１９は、搬送方向上流へ退避しているため、圧着枠７ａ，７ｂおよび半製品Ｐ１，Ｐ２と干渉することはない。 At the same time or prior to this, the heating plate 30 is moved from the position between the conveying parts 5a and 5b to between the crimp frames 7a and 7b, that is, between the semi-finished products P1 and P2, as indicated by an arrow B in FIG. insert. Then, as shown in FIG. 8B, the divided surfaces Q1 and Q2 are brought into contact with the heating plate 30 and melted.
When the crimp frames 7a and 7b are close to each other, the rails 19 of the transport portions 5a and 5b are retracted upstream in the transport direction, and thus do not interfere with the crimp frames 7a and 7b and the semi-finished products P1 and P2.

分割面Ｑ１，Ｑ２の溶融後、半製品Ｐ１，Ｐ２を、夫々圧着枠７ａ，７ｂに支持（ロック）した状態で、図８（ｃ）の矢印Ｃに示すように、圧着方向外方へ同期して遠ざけ、分割面Ｑ１，Ｑ２を加熱板３０から引き離す。ここでは、圧着枠７ａ，７ｂの各爪部材４１が、夫々、上記相互隣接する凸部Ｒ１間および凸部Ｒ２間に対して挿入され、半製品Ｐ１，Ｐ２を係止することで、半製品Ｐ１，Ｐ２は、圧着枠７ａ，７ｂから上記引き離しの力を伝達されるようになっている。 After the dividing surfaces Q1 and Q2 are melted, the semi-finished products P1 and P2 are synchronized (outside) in the crimping direction as indicated by an arrow C in FIG. Then, the dividing surfaces Q1 and Q2 are pulled away from the heating plate 30. Here, the claw members 41 of the crimping frames 7a and 7b are respectively inserted between the convex portions R1 and the convex portions R2 adjacent to each other, and the semi-finished products P1 and P2 are locked. P1 and P2 are adapted to transmit the above-described pulling force from the crimp frames 7a and 7b.

これと共に、図８（ｃ）の矢印Ｄに示すように、加熱板３０を、半製品Ｐ１，Ｐ２間から搬送方向上流へ退避させる。
次に、再度、半製品Ｐ１，Ｐ２を、図８（ｄ）の矢印Ｅに示すように、圧着方向内方へ接近させ、溶融状態の分割面Ｑ１，Ｑ２同士を溶着（圧着）し、完成品のパレットＰを形成する。 At the same time, as indicated by an arrow D in FIG. 8C, the heating plate 30 is retracted upstream from the half-finished products P1 and P2 in the transport direction.
Next, as shown by the arrow E in FIG. 8D, the semi-finished products P1 and P2 are again approached inward in the crimping direction, and the divided surfaces Q1 and Q2 in the molten state are welded (crimped) to complete. A pallet P of goods is formed.

該溶着後、圧着枠７ｂの各爪部材４１が、半製品Ｐ２に対する圧着方向外方への押圧力を解除し、図７（ａ）に示す状態から同図（ｂ）に示す状態となるように、半製品Ｐ２の相互隣接する凸部Ｒ２間から抜き出され、挿入前の位置へ戻ることで、圧着枠７ｂはパレットＰの支持（ロック）を解除する。
該ロック解除後、パレットＰを、圧着枠７ａのみで支持（ロック）した状態で、図８（ｅ）の矢印Ｆおよび図７（ｃ）に示すように、圧着枠７ａ側の圧着方向外方へ移動させると共に、圧着枠７ｂを、圧着枠７ｂ側の圧着方向外方へ移動させることで、圧着枠７ｂの各ピン３１を、半製品Ｐ２の各貫通孔Ｓから抜き出す。ここでも、圧着枠７ａの各爪部材４１が、相互隣接する凸部Ｒ１間に対して挿入され、パレットＰを係止することで、パレットＰは、圧着枠７ａから、圧着方向外方へ移動する駆動力を伝達されるようになっている。 After the welding, each claw member 41 of the crimping frame 7b releases the pressing force outward in the crimping direction with respect to the semi-finished product P2, so that the state shown in FIG. 7 (a) is changed to the state shown in FIG. 7 (b). Then, the crimping frame 7b releases the support (lock) of the pallet P by being extracted from between the adjacent convex portions R2 of the semi-finished product P2 and returning to the position before insertion.
After unlocking, with the pallet P supported (locked) only by the crimping frame 7a, as shown in the arrow F of FIG. 8 (e) and FIG. And moving the crimp frame 7b outward in the crimping direction on the crimp frame 7b side, the pins 31 of the crimp frame 7b are extracted from the through holes S of the semi-finished product P2. Also here, each claw member 41 of the crimping frame 7a is inserted between the adjacent convex portions R1 and the pallet P is locked, so that the pallet P moves from the crimping frame 7a outward in the crimping direction. The driving force to be transmitted is transmitted.

このようにして、圧着枠７ａを、半製品Ｐ１を支持する前の位置より圧着方向外方へ移動させると共に、圧着枠７ｂを、半製品Ｐ２を支持する前の位置へ復帰させる。
そして、図９（ａ）に示すように、圧着枠７ａ側のガイド２８，２９を夫々下方および上方に戻す。圧着枠７ｂ側のガイド２８，２９も、同様の動作を行う。
その後、圧着枠７ａの各爪部材４１が、半製品Ｐ１に対する圧着方向外方への押圧力を解除し、図７（ｄ）に示すように、半製品Ｐ１の相互隣接する凸部Ｒ１間から抜き出され、挿入前の位置へ戻ることで、圧着枠７ａはパレットＰの支持（ロック）を解除する。 In this manner, the crimping frame 7a is moved outward in the crimping direction from the position before supporting the semi-finished product P1, and the crimping frame 7b is returned to the position before supporting the semi-finished product P2.
Then, as shown in FIG. 9A, the guides 28 and 29 on the crimping frame 7a side are returned downward and upward, respectively. The guides 28 and 29 on the pressure frame 7b side perform the same operation.
Thereafter, each claw member 41 of the crimping frame 7a releases the pressing force outward in the crimping direction with respect to the semi-finished product P1, and, as shown in FIG. 7D, from between the adjacent convex portions R1 of the semi-finished product P1. The crimping frame 7a releases the support (lock) of the pallet P by being extracted and returning to the position before insertion.

そして、圧着枠７ａの各突当板３７を、図７（ｅ）に示すように、圧着方向内方へ突き出し、パレットＰを圧着方向内方へ押し出し、圧着枠７ａの各ピン３１を、半製品Ｐ１の各貫通孔Ｓから抜き出すと共に、パレットＰを、図９（ｂ）に示すように、圧着枠７ａ側のガイド２８，２９によるガイド状態で、半製品Ｐ１の搬送経路上に位置させる。
このとき、図８（ｅ）の矢印Ｇに示すように、次の半製品Ｐ１’，Ｐ２’が、搬送部５ａ，５ｂによって圧着部７へ向けて搬送されてくる。 Then, as shown in FIG. 7 (e), each abutting plate 37 of the crimping frame 7 a is projected inward in the crimping direction, the pallet P is pushed inward in the crimping direction, and each pin 31 of the crimping frame 7 a is As shown in FIG. 9B, the pallet P is positioned on the conveyance path of the semi-finished product P1 while being guided by the guides 28 and 29 on the crimping frame 7a side.
At this time, as shown by an arrow G in FIG. 8 (e), the next semi-finished products P1 ′ and P2 ′ are conveyed toward the crimping portion 7 by the conveying portions 5a and 5b.

そして、半製品Ｐ１の搬送経路上にあるパレットＰを、図８（ｆ）の矢印Ｈに示すように、搬送部５ａによって搬送方向下流へと搬送される次の半製品Ｐ１’によって、搬送方向下流側へ向けて圧着部７から押し出し、溶着装置１から搬出する。該押し出されたパレットＰは、一対のコンベア９ａ，９ｂによって、図８（ｇ）の矢印Ｉに示すように、圧着方向に挟持されて移送される。 Then, as shown by an arrow H in FIG. 8F, the pallet P on the conveyance path of the semi-finished product P1 is conveyed in the conveyance direction by the next semi-finished product P1 ′ conveyed downstream in the conveyance direction by the conveyance unit 5a. It pushes out from the crimping part 7 toward the downstream side and carries it out from the welding apparatus 1. The extruded pallet P is nipped and transferred in the pressure-bonding direction by the pair of conveyors 9a and 9b as shown by an arrow I in FIG. 8 (g).

ここで、搬送部５ａは、搬送方向下流のさらに奥まで次の半製品Ｐ１’を押し出して、パレットＰをコンベア９ａ，９ｂに挟持させて搬送させるように、搬送部５ｂと比べて第２移動体２１のストロークが長くなるように構成されている。これは、具体的には、前記モータの制御によって行えばよい。該押し出しの後、半製品Ｐ１’は、図８（ｇ）の矢印Ｊに示すように、上記ロック状態で搬送方向上流側へ戻るように制御され、半製品Ｐ２’と搬送方向位置を揃えた状態で圧着枠７ａに支持される。 Here, the transport unit 5a moves second in comparison with the transport unit 5b so as to push the next semi-finished product P1 ′ further downstream in the transport direction so that the pallet P is sandwiched and transported between the conveyors 9a and 9b. It is comprised so that the stroke of the body 21 may become long. Specifically, this may be performed by controlling the motor. After the extrusion, as shown by an arrow J in FIG. 8G, the semi-finished product P1 ′ is controlled to return to the upstream side in the transport direction in the locked state, and is aligned with the semi-finished product P2 ′ in the transport direction position. In the state, it is supported by the crimping frame 7a.

上記圧着枠７ａ，７ｂによる半製品Ｐ１，Ｐ２の支持から、次の半製品Ｐ１’，Ｐ２’の支持までの工程を繰り返すことで、パレットＰの大量生産が可能である。
なお、溶着装置１の稼働停止前の最後に溶着形成されるパレットＰだけは、次の半製品Ｐ１’による押し出しが行われないため、手作業にて搬出すればよい。また、上記のように手作業にてパレットＰが搬出された場合、溶着装置１の再稼働開始後の最初に搬入される半製品Ｐ１は、パレットＰの押し出しを行うことはない。 By repeating the steps from the support of the semi-finished products P1 and P2 by the crimp frames 7a and 7b to the support of the next semi-finished products P1 ′ and P2 ′, the pallet P can be mass-produced.
Note that only the pallet P that is welded and formed at the end before the operation of the welding apparatus 1 is stopped is not pushed out by the next semi-finished product P1 ′, and may be carried out manually. Moreover, when the pallet P is carried out manually as described above, the semi-finished product P1 carried in first after the restart of the welding apparatus 1 does not push out the pallet P.

本実施形態は、以下のような効果を奏する。
まず、上述のように、溶着後の完成品のパレットＰを、搬送部５ａにおける搬送過程の半製品Ｐ１（次の半製品Ｐ１’）によって搬送方向下流側へ押し出して搬出する構成により、半製品Ｐ１（Ｐ１’）の搬送と、溶着後のパレットＰの搬出と、を共通の駆動機構によって行うことができるため、特許文献１に記載のようにパレットＰを一対のアームによって挟持して搬出する必要がなくなり、構成が簡易となり、コストも低減できる。 This embodiment has the following effects.
First, as described above, the pallet P of the finished product after welding is pushed out by the semi-finished product P1 (next semi-finished product P1 ′) in the carrying process in the carrying unit 5a to the downstream side in the carrying direction. Since transport of P1 (P1 ′) and unloading of the pallet P after welding can be performed by a common drive mechanism, the pallet P is sandwiched and unloaded by a pair of arms as described in Patent Document 1. There is no need, the configuration is simplified, and the cost can be reduced.

また、半製品をコンベア上に載せて搬送する従来の構成では、コンベア上面と半製品との間の静摩擦力が十分でないため、パレットを次の半製品によって押し出して搬出することは困難であった。
これに対し、本実施形態では、第２移動体２１にロックされた半製品Ｐ１を、前記第３のエアシリンダおよびモータの駆動力によって搬送するため、該駆動力を所定値以上とすることで、容易にパレットＰを次の半製品Ｐ１’によって押し出すことができる。 In addition, in the conventional configuration in which the semi-finished product is placed on the conveyor and conveyed, the static friction force between the upper surface of the conveyor and the semi-finished product is not sufficient, so it is difficult to push the pallet out by the next semi-finished product and carry it out. .
On the other hand, in this embodiment, since the semi-finished product P1 locked to the second moving body 21 is conveyed by the driving force of the third air cylinder and the motor, the driving force is set to a predetermined value or more. The pallet P can be easily extruded by the next semi-finished product P1 ′.

上記実施形態においては、圧着方向を水平方向に設定したが、本発明はこれに限られず、圧着方向を鉛直方向に設定してもよい。 In the said embodiment, although the crimping | compression-bonding direction was set to the horizontal direction, this invention is not restricted to this, You may set a crimping | compression-bonding direction to a perpendicular direction.

本実施形態に係る溶着装置の概要を示す平面図The top view which shows the outline | summary of the welding apparatus which concerns on this embodiment 同上の溶着装置に搬入される半製品および溶着後のパレットの模式図Schematic diagram of semi-finished product and pallet after welding carried into welding equipment same as above 同上の溶着装置の搬送部を示す平面図The top view which shows the conveyance part of the welding apparatus same as the above 図３の側面図Side view of FIG. 同上の溶着装置における搬送部のガイドの模式図Schematic diagram of the guide of the transfer unit in the welding device same as above 同上の溶着装置の圧着枠による半製品の支持過程を示す図The figure which shows the support process of the semi-finished product with the crimping frame of the welding equipment same as above 同上の溶着装置の圧着枠によるパレットの支持解除過程を示す図The figure which shows the support release process of the pallet by the crimping frame of the welding apparatus same as the above 同上の溶着装置の熱溶着工程を示す図The figure which shows the heat welding process of the welding apparatus same as the above 同上の溶着装置における搬送部のガイドの模式図Schematic diagram of the guide of the transfer unit in the welding device same as above

Explanation of symbols

１溶着装置
１７第１移動体
１９レール
２１第２移動体
２３本体
２５回転軸部
２７係止部
Ｐパレット
Ｐ１半製品
Ｐ１’ 次の半製品
Ｐ２半製品
Ｑ１分割面
Ｑ２分割面
Ｒ１凸部（半製品の支柱部分） DESCRIPTION OF SYMBOLS 1 Welding apparatus 17 1st moving body 19 Rail 21 2nd moving body 23 Main body 25 Rotating shaft part 27 Locking part P Pallet P1 Semi-finished product P1 'Next semi-finished product P2 Semi-finished product Q1 Dividing surface Q2 Dividing surface R1 Convex part (half Product support)

Claims

A pair of semi-finished products formed by dividing the pallet into two parts on a parallel plane with respect to the load carrying surface, on a conveying path parallel to each of the half-finished parts with the divided surfaces facing each other in parallel Conveying means for conveying
A pair of semi-finished products transported to a predetermined position by the transport means, a pair of crimping frames that can be supported and unsupported, respectively,
Parallel abutment of the two divided surfaces against a heating plate positioned between the divided surfaces by a parallel movement operation in a direction perpendicular to the divided surfaces while supporting the semi-finished products corresponding to the pair of crimp frames. A welding control means for sequentially separating the two divided surfaces melted by the contact from the heating plate and welding the two divided surfaces after the heating plate is retracted from between the divided surfaces;
A pallet welding apparatus comprising:
After welding a pair of semi-finished products by the welding control means,
While only one crimping frame supports the pallet after welding, it returns to the position before supporting the semifinished product, and after releasing the support of the pallet, the pallet is placed on the conveyance path of the semifinished product on the one crimping frame side. Extrude,
Unloading control means for pushing out and unloading the welded pallet by a semi-finished product in the process of being moved on the conveying path by the conveying means.
Pallet welding apparatus comprising the.

2. The pallet welding apparatus according to claim 1 , wherein the conveying unit includes a second moving body that moves the semi-finished product in a locked state and conveys the semi-finished product.

3. The pallet welding apparatus according to claim 2 , wherein the second moving body includes a mechanism that locks a column portion having the divided surface of the semi-finished product as a top surface. 4.

The second moving body includes a main body, a rotating shaft portion pivotally supported by the main body in a state parallel to the transport direction so as to control a protrusion amount and a rotation position in the transport direction from the main body, A locking portion extending perpendicularly to the rotating shaft portion from the tip portion of the rotating shaft portion,
The second moving body controls the rotational position of the rotating shaft portion and pulls it into the main body, and locks the column portion of the semi-finished product between the main body and the locking portion. The pallet welding apparatus according to claim 3 .

The transfer means includes a first moving body that moves relative to the apparatus body in the transfer direction;
A rail that guides the end of the upstream side in the transport direction to be fixed to the first moving body and relatively moves the second moving body in the transport direction;
The pallet welding apparatus according to any one of claims 2 to 4 , wherein the pallet welding apparatus is provided.

The first moving body moves relative to the apparatus body using a motor as a driving source, and the second moving body moves relative to the rail using a fluid pressure cylinder provided in the two moving bodies as a driving source. The pallet welding apparatus according to claim 5 , wherein the pallet welding apparatus is relatively moved.