PT90676B - Moldes guarnecidos - Google Patents
Moldes guarnecidos Download PDFInfo
- Publication number
- PT90676B PT90676B PT90676A PT9067689A PT90676B PT 90676 B PT90676 B PT 90676B PT 90676 A PT90676 A PT 90676A PT 9067689 A PT9067689 A PT 9067689A PT 90676 B PT90676 B PT 90676B
- Authority
- PT
- Portugal
- Prior art keywords
- welding
- mold
- edge
- welding surface
- face
- Prior art date
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Classifications
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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
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/08—Trimmings; Ornaments
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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
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
- B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
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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
- 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
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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
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
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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
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/246—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines forming figures, e.g. animals, flowers, hearts
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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
- 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
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
- B29C66/4724—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat said single elements being appliques, e.g. in the form of a text or drawing
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
- B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
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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
- 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
- B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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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
- 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
- B29C66/8167—Quick change joining tools or surfaces
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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
- 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
- B29C66/72—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 structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2313/00—Use of textile products or fabrics as reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4842—Outerwear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/722—Decorative or ornamental articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1313—Cutting element simultaneously bonds [e.g., cut seaming]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
- Y10T156/1378—Cutter actuated by or secured to bonding element
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Polarising Elements (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- General Preparation And Processing Of Foods (AREA)
- Details Of Garments (AREA)
- Treatment Of Fiber Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Liquid Developers In Electrophotography (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Formation And Processing Of Food Products (AREA)
Description
A presente invenção refere-se à soldadura de produtos de aplicaçao.
A soldadura de motivos plásticos, conhecidos como produtos de aplicação, a bases texteis utili zando máquinas de soldadura de alta frequência ê um precesso que, ele próprio, não é novo e tem sido realizado durante vá rios anos. Contudo, não é um processo directo e existe um número considerável de problemas, inerentes ao processo, que tornam difícil de conseguir um produto final de qualidade elevada.
Um factor que determina, por exemplo, a qualidade do produto final ê a uniformidade da ligação da soldadura dos motivos plásticos ao tecido. No próprio processo de soldadura, é essencial que o plano da superfície do molde esteja paralelo ao suporte do artigo de vestuário para
CR.
garantir uma mesma pressão e contacto da saliência de soldadura do molde sobre o motivo plástico. 0 desenho da saliência da soldadura sobre o molde ê também importante para asse gurar uma boa ligação e uma separação limpa e fácil do exce_s so do material de decoração dos motivos plásticos depois da soldadura. Estes e outros factores são importantes para a qualidade do produto final.
A presente invenção pretende proporcic) nar um molde melhorado. Consequentemente a presente invenção proporciona um molde, para se utilizar em soldadura a quente, dum desenho em relevo sobre materiais plásticos, pos_ suindo o molde uma primeira face; e possuindo, pelo menos uma primeira saliência de soldadura alongada que se eleva e se estende ao longo de um percurso fechado e pré-seleccionado na referida face, possuindo a referida saliência de solda^ dura uma primeira superfície de soldadura afastada e essencialmente coplanar com a referida primeira face e uma aresta de corte que se projecta por trás da referida superfície de soldadura e se estende ao longo do comprimento do referido percurso fechado externamente à referida superfície de solda, dura para cortar o referido material plástico durante a soldadura.
A presente invenção em seguida, por meio de exemplos, com referência aos desenhos que a acompanham, em que:
A | figura | 1 | representa uma secção parcial, de um molde acabado, ao longo da linha A-A da figura 4; |
A | figura | 2 | representa uma vista lateral do molde; |
A | figura | 3 | representa uma vista lateral adicional do molde, rodada de 902; |
A | figura | 4 | representa uma vista em plano do molde, mostran do a face do molde; e |
A | figura | 5 | representa uma vista alimentada duma secção de uma saliência de soldadura, possuindo uma aresta de corte. |
No processo para a aplicação de um pr£ duto de aplicação a um artigo de vestuário utiliza-se uma có pia do desenho da aplicação para fabricar uma placa gravada que depois se utiliza como padrão para executar mecanicamente um molde de soldadura (10).
As linhas a preto na figura 4 represen tam as saliências de soldadura (12) do molde. Existem duas formas de saliências de soldadura necessárias no molde. As primeiras são saliências de soldadura cujo único fim ê o de soldar os motivos plásticos ao tecido, e estas estão represen tadas pelas linhas pretas mais finas na figura 4. Estas refe renciam-se como saliências de soldadura interiores (12a).
As segundas são saliências de soldadura cujo objectivo ê o de soldar o motivo do tecido e também o de cortar o motivo ao longo da aresta exterior da saliência de soldadura. Isto permite que o excesso do material do motivo seja removido de^ pois da soldadura. Estas referenciam-se como saliências de soldadura exteriores (12b) embora possam ocorrer dentro dos limites do desenho do motivo e representam-se linhas pretas grossas que contornam o desenho do motivo. As saliências de soldadura exteriores são mais largas do que as saliências de soldadura interiores, para permitirem a formação de uma aresta de corte (14) e também para assegurar uma soldadura conveniente ao longo da aresta de corte do motivo.
A largura exigida para as saliências de soldadura exteriores (12b) no molde acabado depende do compri. mento total das saliências de soldadura exteriores (12b) no desenho. O comprimento das saliências de soldadura (12b) não têm de ser medida exactamente e, por isso, isto refere-se geralmente ao tamanho real (área) do molde, podendo a largura (J2.) de cada saliência de soldadura ser determinada de acordo com o tamanho real do motivo. A Tabela I, a seguir, apresen ta as larguras (/) ideais de saliência de soldadura exterior.
- 3 Tabela 1
Tamanho do motivo (tomado como a maior dimensão do motivo)
Largura (,( ) da saliência de Soldadura
Exterior no molde acabado
Menor do que 7,5 cm | 1,5 mm |
7,5 a 10 cm | 2,0 cm |
Maior do que 10 cm | 3,0 mm |
A largura mínima do interior, e a porção de soldadura das saliências de soldadura exteriores não devem ser inferiores a 0,5 mm, porque abaixo disto não se pode garantir uma verdadeira soldadura.
molde (10) fabrica-se, de preferência, em metal dúctil.
Inicialmente, removem-se as grandes áreas de material em excesso no molde, as quais rodeiam as sa liências de soldadura exteriores (12b) e quaisquer grandes áreas dentro das saliências de soldadura exteriores. Este material remove-se a uma profundidade mínima de 4 mm o que ê satisfatório para 90% de todos os materiais dos motivos e te eidos a serem soldados e assegura que as partes em reentrância do molde não contactem o motivo durante a soldadura, e causem danos.
material remanescente do molde, dentro das saliências de soldadura exteriores (12b) trabalha-se então mecanicamente para criar um pormenor relativamente fino no molde (10) e para um acabamento correcto das saliên cias de soldadura. Visto que nos preocupamos aqui com um pormenor fino do molde a remoção do material entre saliências de soldadura relativamente próximas e o acabamento correcto de saliências de soldadura, a profundidade do trabalho mecâni.
co não deve ser superior a 4 mm., e não é critica. Ê suficiente aqui uma profundidade da ordem dos 2 mm. embora a profun didade critica seja de 2,5 mm.
Depois do material entre as saliências de soldadura ser trabalhado mecanicamente no molde e as saliências de soldadura acabadas correctamente, a altura vertical das saliências de soldadura interiores (12a) (aquelas não necessitam de possuir uma aresta de corte) necessita de ser trabalhada mecanicamente na face posterior devido à altura necessária da aresta de corte. Cada saliência de soldadura, excepto aquelas que necessitam de possuir uma aresta de corte, ê trabalhada mecanicamente na face posterior a uma profundida de de 0,3 mm.
Isto permite que se formem arestas de corte (14) nas saliências de soldadura exteriores (12b) de 0,3 mm de altura, o que é suficiente para 90 Z dos materiais de motivo.
As arestas de corte (14) nas saliências de soldadura exteriores (12b) formam-se então por corte poste: rior de cada saliência de corte a uma profundidade de 0,3 mm, ao longo apenas de parte da sua largura.
A figura 1 representa uma secção vertical através de um molde acabado (10) e como pode ver-se todas as saliências de soldadura (12) e arestas de corte devem permanecer nos mesmos planos respectivos. A figura 5 representa uma secção vertical aumentada ao longo de uma saliência de soldadura exterior com uma aresta de corte. A Tabela III, a seguir , apresenta as dimensões identificadas na Figura 4.
- 5 Tabela III
Dimensão
Magnitude
7,5°
0,3 mm
Ver Tabela I anterior
4,0 mm
As dimensões anteriores aplicam-se à soldadura de 90 Z dos materiais.
No entanto para a soldadura de materiais resilientes grossos, particularmente, por exemplo, botas de Wellington feitas de materiais plásticos, utilizam-se as dimensões diferentes seguintes:
Tabela IV
Dimensão
Magnitude tf
5° h 0,5 mm
Durante a produção do molde formam-se também marcas de registo (10) nos quatro cantos do molde.
Elas ajudam o alinhamento do molde com um motivo de aplicação, antes da soldadura do motivo. Com vista a assegurar que as marcas de registo não interfiram com o processo de soldadura e eventualmente marquem ou danifiquem de outro modo os motivos plásticos, aquelas cortam-se na face posterior a uma altura de aproximadamente metade da das saliências de soldadura, tipicamente 2 mm.
Depois de trabalhadas mecanicamente, as saliências de corte e arestas de corte do molde são acabadas à mão. 0 lado de cima das arestas das saliências de soldadu ra interiores não cortadas e a aresta interior das saliências de soldadura exteriores que possuem as arestas de corte são inicialmente muito afiadas e ê particularmente importante que todas tenham as suas arestas afiadas removidas à mão de modo a evitar a possibilidade do seu corte dentro dos motivos plásticos durante a soldadura e o danificar do motivo. As arestas interiores das arestas de corte são também acabadas ã mão para assegurar que, por exemplo, quando uma saliência de soldadura exterior se volte exactamente sobre ela própria, a aresta de corte não seja mais larga do que o aceitável para efeitos de corte.
Claims (7)
- i 1. Molde para utilização na soldadura a quente de um material; plástico, possuindo um desenho em relevo sobre uma base, tendo esse molde:j uma primeira face; í e pelo menos um primeiro rebordo (12b) de soldadura,I : alongado, que se eleva e se estende ao longo de um percurso fechado e pré-seleccionado nessa face;caracterizado pelo facto de o referido rebordo de soldadura possuir uma primeira superfície de soldadura afastada e' praticamente coplonar com a referida primeira face e possuir uma aresta cortante (14) que se projecta para além da referida superfície de soldadura e que se desenvolve segundo o comprimento do referido percurso fechado exteriormente em relação à referida superfície de soldadura para cortar o referido material de plástico durante a! soldadura; e pelo facto de;a largura de cada uma dessas superfícies de soldadura ser de pelo menos 0,5 mm;a largura do referido primeiro rebordo (12b) de soldadura estar compreendida entre 1,5 mm e 3,0 mm;a altura da referida aresta cortante (14) acima da referida superfície de soldadura estar compreendida entre 0, 3 mm e 0,5 mm;e uma superfície lateral da referida aresta cortante (14) voltada para a primeira superfície de soldadura adjacente formar um ângulo não superior a 15° com uma linha perpendicular a essa primeira superfície de soldadura.
- 2. Molde de acordo com a reivindicação 1, caracterizado pelo facto de possuir também um segundo rebordo (12a) de soldadura, alongado, que se eleva sobre a referida face e por possuir uma segunda superfície de soldadura afastada e praticamente coplanar com a referida primeira superfície de soldadura, desenvolvendo-se essa segunda superfície de ί’ ui soldadura a toda a largura do referido segundo rebordo de soldadura.i;
- 3. Molde de acordo com qualquer das reivindicações anteriores, caracterizado pelo facto de a altura da referida aresta j: cortante (14) acima da referida face ser de pelo menos 4 ίmm.
- 4. Molde de acordo com qualquer das reivindicações anteriores,' caracterizado pelo facto de a largura do referido primeiro1 jj rebordo (12b) de soldadura ser proporcional à maior! J dimensão linear do referido desenho em relevo.'
- 5. Molde de acordo com qualquer das reivindicações anteriores, caracterizado pelo facto de o ângulo referido ser não superior a 10°.I
- 6. Molde de acordo com qualquer das reivindicações anteriores,, caracterizado pelo facto de o ângulo referido ser1 praticamente 7,5°.i I
- 7. Molde de acordo com qualquer das reivindicações anteriores, caracterizado pelo facto de o ângulo referido ser praticamente 5°. ;' 1A requerente reivindica a prioridade do pedido i britânico apresentado em 28 de Maio de 1988, sob o
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888812787A GB8812787D0 (en) | 1988-05-28 | 1988-05-28 | Making of applique articles |
Publications (2)
Publication Number | Publication Date |
---|---|
PT90676A PT90676A (pt) | 1989-11-30 |
PT90676B true PT90676B (pt) | 1995-03-01 |
Family
ID=10637788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT90676A PT90676B (pt) | 1988-05-28 | 1989-05-29 | Moldes guarnecidos |
Country Status (7)
Country | Link |
---|---|
US (1) | US5028294A (pt) |
EP (1) | EP0344987B1 (pt) |
AT (1) | ATE109720T1 (pt) |
DE (1) | DE68917378T2 (pt) |
ES (1) | ES2061993T3 (pt) |
GB (2) | GB8812787D0 (pt) |
PT (1) | PT90676B (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2904560B2 (ja) * | 1990-08-17 | 1999-06-14 | 日本石油化学株式会社 | ウエブ製造装置および積層体製造装置 |
FR2678859B1 (fr) * | 1991-07-10 | 1995-06-16 | Bouchon Rapid | Procede de soudure d'un opercule d'etancheite sur une piece receptrice et sonotrode de soudage utilisee dans ledit procede. |
US5783015A (en) * | 1995-09-22 | 1998-07-21 | Ut Automotive Dearborn, Inc | Method of making vehicle headrest having cloth face bonded to plastic shell |
US6743322B2 (en) * | 2001-01-24 | 2004-06-01 | Printmark Industries Inc. | Process for manufacturing thermoplastic-trimmed article of clothing |
US6508901B2 (en) | 2001-03-16 | 2003-01-21 | Wilson Greatbatch Ltd. | Thermo-encapsulating system and method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE521663C (de) * | 1928-05-15 | 1931-04-01 | Dorogi Es Tarsa Gummigyar R T | Verfahren und Stanze zur paarweisen Vereinigung von unvulkanisierten Gummiplatten |
US2686556A (en) * | 1950-05-31 | 1954-08-17 | Gerber Eugene | Machine for sealing thermoplastic materials |
NL296116A (pt) * | 1962-10-31 | 1900-01-01 | ||
US3334004A (en) * | 1964-02-25 | 1967-08-01 | Union Carbide Corp | Apparatus for cutting and radiant heat sealing thermoplastics |
US4209354A (en) * | 1966-12-19 | 1980-06-24 | Nishizawa Shoji Co. Ltd. | Method of making an applique article |
US3758358A (en) * | 1966-12-19 | 1973-09-11 | Nishizawa Shoji Co Ltd | Emethod of and apparatus for making a padded three dimensional appliqu |
GB1244407A (en) * | 1969-02-28 | 1971-09-02 | Nishizawa Shoji Co Ltd | Improvements relating to applique articles and method and apparatus for making same |
US3868288A (en) * | 1972-07-03 | 1975-02-25 | Andrew Ercolano | Producing an applique thermoplastic article |
US3944454A (en) * | 1974-06-25 | 1976-03-16 | The Dimension Weld International Corporation | Heat-bonding method |
US4268338A (en) * | 1979-08-20 | 1981-05-19 | Peterson Electronic Die Co. | Method and apparatus for RF sealing of thermoplastic layers |
GB2131354B (en) * | 1982-12-04 | 1986-04-16 | Ernest Henry Worth | Method of making patterned multi-laminar article |
GB8408756D0 (en) * | 1984-04-05 | 1984-05-16 | Worth E H | Laminated material |
GB2184399B (en) * | 1985-12-06 | 1990-02-28 | Heat Seal | Method for applying a pattern to a substrate. |
-
1988
- 1988-05-28 GB GB888812787A patent/GB8812787D0/en active Pending
-
1989
- 1989-05-26 US US07/357,973 patent/US5028294A/en not_active Expired - Fee Related
- 1989-05-26 EP EP89305357A patent/EP0344987B1/en not_active Expired - Lifetime
- 1989-05-26 DE DE68917378T patent/DE68917378T2/de not_active Expired - Fee Related
- 1989-05-26 GB GB8912160A patent/GB2218945B/en not_active Expired - Fee Related
- 1989-05-26 AT AT89305357T patent/ATE109720T1/de not_active IP Right Cessation
- 1989-05-26 ES ES89305357T patent/ES2061993T3/es not_active Expired - Lifetime
- 1989-05-29 PT PT90676A patent/PT90676B/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB8812787D0 (en) | 1988-06-29 |
DE68917378T2 (de) | 1995-04-20 |
ATE109720T1 (de) | 1994-08-15 |
GB2218945A (en) | 1989-11-29 |
GB2218945B (en) | 1992-01-29 |
EP0344987B1 (en) | 1994-08-10 |
ES2061993T3 (es) | 1994-12-16 |
PT90676A (pt) | 1989-11-30 |
DE68917378D1 (de) | 1994-09-15 |
EP0344987A3 (en) | 1991-03-27 |
GB8912160D0 (en) | 1989-07-12 |
EP0344987A2 (en) | 1989-12-06 |
US5028294A (en) | 1991-07-02 |
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