ES1068944U

ES1068944U - Cutting cutting utensil with cutting chain (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES1068944U
Application number: ES200802051U
Authority: ES
Inventors: Marco Garrone
Original assignee: Mec Garrone S A S Off; Officina Meccanica Garrone Sas
Current assignee: Mec Garrone S A S Off; Officina Meccanica Garrone Sas
Priority date: 2007-10-17
Filing date: 2008-10-09
Publication date: 2009-01-01
Anticipated expiration: 2018-10-09
Also published as: ES1068944Y; ITGE20070100A1

Abstract

Cutting tool for string sawing machines, for the extraction in quarry of slate, marbles, granites and stone minerals in general, comprising cutting inserts (7, 7'') in the form of a square rectangular prism ; means (6, 6 ") for supporting said cutting inserts (7, 7"), which can be fixed to a corresponding tool holder link (2, 2 ") of a cutting chain (1), characterized in that said support means (6, 6 ") comprise a tooth (206, 206") directed towards a general direction of advancement (a) of the chain (1) and provided with at least one side wall of a seat (306) for receiving and fixing said cutting inserts (7, 7 "), said inserts (7, 7") comprising at least one external lateral wall (507) that cutting edges (107, 207) and at least one edge (307) of substantially transversal cut with respect to said direction of advance (a) have been defined, said cutting edges (107, 207, 307) defining each other a dihedral angle constituting the true and proper active cutting edge of the saw chain, and said outer side wall (507) being provided with a certain in. Clination with respect to a vertical general longitudinal plane (12) of the support (6, 6 ") of said cutting inserts (7, 7"). (Machine-translation by Google Translate, not legally binding)

Description

Utensilio de corte para aserradoras con cadena de corte.Cutting tool for chain saws cutting

La presente invención se refiere a un utensilio de corte para máquinas aserradoras con cadena de corte, para la extracción en cantera de pizarras, mármoles, granitos y materiales pétreos en general.The present invention relates to a utensil of cutting for sawing machines with chain of cut, for the Quarry, marble, granite and material quarry extraction Stones in general.

Las máquinas de aserrado con cadena de corte, tal como es sabido, comprenden una serie de mallas o eslabones destinados a soportar un útil de corte que están conectados uno a otro directamente o con la interposición de eslabones de unión no activos. Estos útiles de corte comprenden sustancialmente un elemento de soporte sobre el cual está fijada una plaquita portadora de las aristas de corte de dichos materiales pétreos.Sawing machines with cutting chain, as is known, they comprise a series of meshes or links intended to support a cutting tool that are connected to each other other directly or with the interposition of connecting links not assets. These cutting tools substantially comprise a support element on which a insert is fixed carrier of the cutting edges of said stone materials.

El elemento de soporte que se fija al eslabón puede tener forma prismática con un borde de corte superior sustancialmente paralelo a una dirección general de desplazamiento de la cadena de corte. Frontalmente este elemento de soporte comprende una plaquita portadora de un borde de corte alineado con el borde de corte o arista del soporte anterior. Dicha plaquita tiene forma de paralelepípedo y presenta por lo tanto, con respecto a la dirección de desplazamiento de la cadena de corte, sustancialmente una forma rómbica. Además dicha plaquita está fijada al soporte mediante un tornillo o bulón roscado en un orificio roscado del soporte. Este bulón es atornillado frontalmente al soporte con respecto a la dirección de avance de la cadena de corte.The support element that attaches to the link can be prismatic in shape with a superior cutting edge substantially parallel to a general direction of travel of the cutting chain. Frontally this support element It comprises a insert carrying a cutting edge aligned with the cutting edge or edge of the anterior support. This insert It is shaped like a parallelepiped and therefore presents to the direction of travel of the cutting chain, substantially a rhombic shape. Also said insert is fixed to the support by means of a screw or threaded bolt in a threaded hole of the bracket. This bolt is screwed frontally to the support with respect to the direction of advance of the cutting chain

Este utensilio de corte presenta inconvenientes debido sobretodo a la disposición de las aristas o dientes de corte que provoca esfuerzos excesivos sobre los mismos y como consecuencia, una eficacia limitada del corte, sobretodo debido a la reducida velocidad de corte que se puede obtener y la limitada duración de los propios utensilios. Además la fijación de las plaquitas en los elementos de soporte presenta dificultades operativas en el caso en que se deba verificar una rotura de dichos elementos de soporte o de los medios de fijación de las plaquitas a los mencionados elementos de soporte. Estos medios de fijación no están dispuestos en realidad en los utensilios de corte conocidos, de manera óptima y protegida para impedir eventuales roturas y/o para actuar de manera rápida y eficaz sin excesiva dificultad operativa.This cutting tool has drawbacks due above all to the disposition of the edges or cutting teeth that causes excessive efforts on them and how consequently, a limited efficiency of the cut, especially due to the reduced cutting speed that can be obtained and the limited duration of the utensils themselves. In addition to fixing the inserts in the support elements presents difficulties operational in the event that a breakage of these must be verified support elements or of the fixing means of the inserts a The mentioned support elements. These fixing means do not they are actually arranged in known cutting utensils, optimally and protected to prevent possible breakage and / or to act quickly and effectively without excessive difficulty operational

Finalmente, con la rotación de las plaquitas de corte de estos utensilios de tipo conocido se pueden activar solamente cuatro aristas de corte para cada una de las plaquitas.Finally, with the rotation of the plates of cutting of these utensils of known type can be activated only four cutting edges for each of the inserts

El objetivo de la presente invención consiste por lo tanto en superar los inconvenientes que se acaban de citar de los utensilios de corte conocidos para máquinas de aserrado con cadena de corte para la extracción en cantera de pizarras, mármoles, granitos y minerales pétreos en general.The objective of the present invention is to therefore in overcoming the inconveniences just mentioned of the known cutting tools for sawing machines with cutting chain for quarry quarry extraction, marbles, granites and stone minerals in general.

Este objetivo se consigue mediante la presente invención con un utensilio de corte que comprende medios de soporte de un elemento postizo de corte fijable en un eslabón correspondiente porta-utensilios de una cadena de corte; que se caracteriza por el hecho de que dichos medios de soporte comprenden un diente dirigido hacia una dirección genérica de avance de la cadena de corte y dotado al menos en un lado de un alojamiento receptor y fijación de un elemento postizo de corte; dicho elemento postizo de corte comprende como mínimo una pared lateral externa sobre la cual se han definido aristas de corte y está dotado como mínimo de una arista de corte sustancialmente transversal con respecto a dicha dirección de avance; dicha pared lateral externa está dotada de una cierta inclinación con respecto a un plano genérico longitudinal y vertical del soporte de dicho elemento postizo de corte.This objective is achieved by this invention with a cutting tool comprising support means of a fixable cutting insert in a link corresponding tool holder of a chain of cut; characterized by the fact that said means of support comprise a tooth directed towards a generic direction of advance of the cutting chain and equipped with at least one side of a receiver housing and fixing of a false cutting element; said cutting insert comprises at least one wall outer side on which cutting edges have been defined and It is equipped with at least one cutting edge substantially transverse with respect to said direction of advancement; said wall outer side is provided with a certain inclination with respect to a generic longitudinal and vertical plane of the support of said hairpiece cutting element.

Gracias a esta disposición es posible utilizar para cada una de las plaquitas de corte ocho aristas diédricas activas, mediante la rotación de la propia plaquita alrededor de sus ejes medios longitudinal y transversal.Thanks to this provision it is possible to use for each of the cutting plates eight dihedral edges active, by rotating the insert itself around its longitudinal and transverse middle axes.

Otras características y ventajas de la presente invención se comprenderán mejor en el curso de la siguiente descripción, considerada a título de ejemplo no limitativo referida a los dibujos adjuntos, en los cuales:Other features and advantages of this invention will be better understood in the course of the following description, considered as a non-limiting example referred to to the attached drawings, in which:

\bullet la figura 1 muestra una vista parcial, según un alzado lateral, de una cadena de corte para máquinas de aserrado para la extracción en cantera de pizarras, mármoles, granitos y minerales pétreos en general, que comprende una serie de eslabones activos cada uno de los cuales lleva un útil de corte según la presente invención;Figure 1 shows a partial view, according to a side elevation of a cutting chain for machines sawn for quarry extraction of slates, marbles, Stone granites and minerals in general, comprising a series of active links each of which carries a cutting tool according to the present invention;

\bullet la figura 2 muestra una vista frontal, parcialmente en sección, de uno de los utensilios de corte según la invención mostrado en la figura 1; yFigure 2 shows a front view, partially in section, of one of the cutting utensils according to the invention shown in figure 1; Y

\bullet la figura 3 muestra una vista en alzado del utensilio de corte de la figura 2.Figure 3 shows a view in elevation of the cutting tool of figure 2.

Haciendo referencia a los dibujos adjuntos y en particular a la figura 1 de los mismos, se ha indicado con el numeral (1) una cadena de corte para máquinas aserradoras para la extracción en cantera de pizarras, mármoles, granitos y minerales pétreos en general. Esta cadena de corte comprende una serie de eslabones activos, es decir, de soporte de un utensilio de corte, conectados uno a otro mediante eslabones inactivos de conexión. En la figura se han mostrado, a título de ejemplo, dos eslabones activos (2) y (2') realizados con forma sustancialmente de "U" invertida y cada uno de los cuales comprende una parte inferior (102) de conexión con eslabones inactivos (3), estando realizados con esta finalidad en la parte inferior (102) un par de orificios (202) en los que se han insertado pernos (4) para la conexión con los eslabones inactivos (3). Estos pernos (4) están mantenidos en posición para la conexión de los eslabones activos a los eslabones inactivos mediante ganchos (5), sustancialmente en forma de "L". Cada uno de dichos eslabones activos (2) y (2') comprenden una parte superior (302) en la cual está alojado el soporte (6) y (6') para una pieza postiza (7) y (7') de forma sustancialmente cúbica o paralelepípeda con planta cuadrada y que comprende tres aristas de corte (107), (207), (307), (107'), 207') y (307').Referring to the attached drawings and in particular to figure 1 thereof, it has been indicated with the numeral (1) a cutting chain for sawing machines for quarry extraction of slates, marbles, granites and minerals Stones in general. This cutting chain comprises a series of active links, that is, of support of a cutting tool, connected to each other through inactive links. In The figure shows, by way of example, two links assets (2) and (2 ') made substantially "U" inverted and each of which comprises a bottom (102) of connection with inactive links (3), being made for this purpose at the bottom (102) a pair of holes (202) in which bolts (4) have been inserted for connection with the inactive links (3). These bolts (4) are held in position for the connection of the active links to the links inactive by hooks (5), substantially in the form of "L". Each of said active links (2) and (2 ') comprise an upper part (302) in which the support (6) is housed and (6 ') for a insert (7) and (7') substantially cubic or parallelepiped with square plan and comprising three cutting edges (107), (207), (307), (107 '), 207') and (307 ').

Este soporte (6) ó (6') está formado por un elemento (106) ó (106') de base, sustancialmente en forma de "U" invertida, apreciándose también en la figura 2 de los dibujos adjuntos, cuya parte anterior, definida con respecto a la dirección (A) de avance de la cadena de corte (1), está finada a la parte superior (302) del eslabón activo (2) ó (2') mediante un bulón (8). Encima de estos elementos (106) ó (106') de base dicho soporte (6) ó (6') comprende en la parte posterior un diente (206) ó (206') de soporte del elemento postizo (7) ó (7') de corte. Considerando por ejemplo el soporte (6) del eslabón activo (2), mostrado frontalmente y parcialmente seccionado en la figura 2, dicho diente (206) comprende en un lado un asiento (306) de forma complementaria al elemento postizo (7) de corte que debe quedar alojado en el mismo. Dicho elemento postizo (7) de corte está posicionado por lo tanto en dicho asiento (306) de manera que sus paredes posteriores, inferior y lateral interna encajen con dicho asiento del diente (206) y con fijación en su respectiva pared lateral del diente (206) mediante un tornillo o bulón (9) de cabeza cónica que encaja en un asiento complementario (407) del elemento postizo (7) y cuyo vástago atraviesa un orificio pasante del elemento postizo (7) alineado axialmente con el orificio (406) realizado en dicho diente (206) y quedando bloqueado sobre el otro lado de dicho diente (206) mediante una tuerca (10). Dicho bulón (9) está dispuesto de manera ventajosa en sentido transversal con respecto a la dirección A de avance de la cadena de corte (1) de la figura 1 y está dotado de una cierta inclinación con respecto a un plano genérico horizontal sobre el que descansa la cadena de corte (1). Sobre el lado de bloqueo del bulón (9) mediante la tuerca (10), por otra parte, está realizado un asiento (11) para el alojamiento de dicha tuerca (10), la cual resulta por lo tanto ventajosamente encajada y protegida en el soporte (6) del elemento postizo de corte (7). El diente (206) está realizado en forma de paralelepípedo que tiene las caras laterales paralelas dotadas de una cierta inclinación con respecto a un plano genérico longitudinal vertical (12) del soporte (6) y por lo tanto del eslabón activo (2) de la figura 1. También las paredes laterales de este elemento postizo de corte (7), en particular la pared lateral externa (507), resultan inclinadas con respecto a dicho plano longitudinal vertical (12). Esta inclinación, que puede estar dirigida hacia la derecha o a la izquierda respecto al plano (12), permite aprovechar al máximo las aristas de corte del elemento postizo obteniendo por lo tanto un elevado rendimiento en la operación de corte de los materiales pétreos, bien sea por la mayor velocidad que se puede obtener o bien por lo que respecta a las mayores secciones de material que se pueden aserrar.This support (6) or (6 ') is formed by a base element (106) or (106 '), substantially in the form of Inverted "U", also appearing in figure 2 of the attached drawings, whose previous part, defined with respect to the direction (A) of advance of the cutting chain (1), is fined to the upper part (302) of the active link (2) or (2 ') by means of a bolt (8). Above these basic elements (106) or (106 ') said support (6) or (6 ') on the back comprises a tooth (206) or (206') of support of the insert (7) or (7 ') of cutting. Considering for example the support (6) of the active link (2), shown frontally and partially sectioned in figure 2, said tooth (206) comprises on one side a seat (306) in a complementary manner to the insert (7) of cut that must be housed in the same. Said cutting element (7) is positioned so both in said seat (306) so that its rear walls, bottom and inner side fit with said tooth seat (206) and with fixation on their respective side wall of the tooth (206) by means of a conical head screw or bolt (9) that fits in a complementary seat (407) of the insert (7) and whose stem passes through a through hole of the insert (7) axially aligned with the hole (406) made in said tooth (206) and being locked on the other side of said tooth (206) using a nut (10). Said bolt (9) is advantageously arranged transversely with respect to the forward direction A of the cutting chain (1) of Figure 1 and it is endowed with a certain inclination with respect to a plane generic horizontal on which the cutting chain (1) rests. On the locking side of the bolt (9) by the nut (10), by In addition, a seat (11) is made for the accommodation of said nut (10), which is therefore advantageously embedded and protected in the support (6) of the insert of cut (7). The tooth (206) is made in the form of parallelepiped that has parallel side faces endowed with a certain inclination with respect to a generic plane longitudinal longitudinal (12) of the support (6) and therefore of the active link (2) of figure 1. Also the side walls of this cutting insert (7), in particular the side wall external (507), are inclined with respect to said plane longitudinal longitudinal (12). This inclination, which may be directed to the right or to the left with respect to the plane (12), allows you to take full advantage of the cutting edges of the element hairpiece thus obtaining a high yield in the cutting operation of stone materials, either by the greater speed that can be obtained or with regard to the larger sections of material that can be sawn.

El elemento postizo de corte (7) está posicionado, siempre en la figura 2, sobre el lado del diente (206) con altura mayor con respecto al lado del asiento (11) de alojamiento de la tuerca (10), sin embargo dicha colocación podría ser también invertida, es decir, el elemento postizo (7) podría estar dispuesto sobre el lado del diente (206) que tiene menor altura y por consiguiente el asiento (11) se encontraría en el lado de altura mayor.The cutting insert (7) is positioned, always in figure 2, on the side of the tooth (206) with greater height with respect to the side of the seat (11) of nut housing (10), however such placement could be also inverted, that is, the insert (7) could be arranged on the side of the tooth (206) that has less height and therefore the seat (11) would be in the side of greater height.

La cadena de corte (1) de la figura 1 está realizada mediante eslabones activos (2) y (2') que están dotados de utensilios de corte que comprenden elementos postizos de corte (7) y (7') con inclinaciones alternadas a lo largo de la dirección de avance A de la cadena (1). En realidad la malla (2) está dotada de un utensilio de corte con elemento postizo (7) inclinado en un lado con respecto al plano (12) mostrado en la figura 2, mientras que el eslabón siguiente de la cadena está dotado de un utensilio de corte con insertos (7') inclinado al otro lado con respecto a dicho plano (12) de la figura 2.The cutting chain (1) of Figure 1 is made using active links (2) and (2 ') that are equipped of cutting utensils comprising false cutting elements (7) and (7 ') with alternating inclinations along the direction feed A of the chain (1). Actually the mesh (2) is equipped of a cutting tool with insert (7) inclined in a side with respect to the plane (12) shown in figure 2, while that the next link in the chain is equipped with a utensil cutting with inserts (7 ') inclined to the other side with respect to said plane (12) of figure 2.

En la figura 3 se puede observar también el elemento postizo de corte (7) y por lo tanto del diente (206) inclinado hacia el lado derecho, mirando la figura, del soporte 6 con respecto al plano longitudinal vertical (12) de dicho soporte (6). Dicha pieza postiza (7) y el diente (206) están dotados también, tal como resulta claramente de dicha figura 1, de una cierta inclinación hacia la parte posterior del soporte (6) respecto a la dirección (A) de avance de la cadena (1) de corte. En la parte anterior del elemento (106) de base del soporte (6) está realizado un orificio (13) para alojamiento del bulón o perno (8) de conexión de dicho soporte con el correspondiente eslabón activo (2) de la cadena de corte.In figure 3 you can also see the false cutting element (7) and therefore of the tooth (206) tilted to the right side, looking at the figure, of support 6 with respect to the vertical longitudinal plane (12) of said support (6). Said insert (7) and the tooth (206) are provided also, as clearly results from said figure 1, of a some inclination towards the back of the support (6) with respect to the direction (A) of advance of the cutting chain (1). In the front part of the base element (106) of the support (6) is made a hole (13) for housing the bolt or bolt (8) of connection of said support with the corresponding active link (2) of the cutting chain.

Tal como se ha podido comprobar por la descripción anterior, son múltiples las ventajas que se consiguen con la utilización del utensilio de corte para máquinas de aserrado con cadena. Así, por ejemplo, es posible utilizar para cada elemento postizo de corte ocho aristas de corte diédricas activas, mediante la rotación del propio elemento postizo alrededor de sus ejes medios longitudinal y transversal.As it has been verified by the previous description, there are many advantages that are achieved with the use of the cutting tool for sawing machines with chain Thus, for example, it is possible to use for each cutting insert eight active dihedral cutting edges, by rotating the hairpiece itself around its longitudinal and transverse middle axes.

Por lo tanto la descripción anterior se deberá considerar como simplemente a título de ejemplo no limitativo, puesto que se pueden introducir múltiples variantes posteriores que permiten obtener las ventajas de las reivindicaciones siguientes.Therefore the above description should be consider as simply by way of non-limiting example, since multiple subsequent variants can be introduced that allow to obtain the advantages of the claims following.

Claims

1. Cutting tool for chain sawing machines, for quarry extraction of slates, marbles, granites and stone minerals in general, comprising cutting elements (7, 7 ') in the form of a rectangular square-shaped prism; means (6, 6 ') for supporting said cutting inserts (7, 7'), which can be fixed to a corresponding tool-holder link (2, 2 ') of a cutting chain (1), characterized by the fact that said support means (6, 6 ') comprise a tooth (206, 206') directed towards a general direction of advance (A) of the chain (1) and provided at least in a side wall of a seat (306) for the accommodation and fixing of said cutting elements (7, 7 '), said cutting elements (7, 7') comprising at least one outer side wall (507) on which edges have been defined of cutting (107, 207) and at least one edge (307) of substantially transverse cutting with respect to said direction of advance (A), said cutting edges (107, 207, 307) defining a dihedral angle constituting the active cutting edge true and proper of the sawing chain, and said outer side wall (507) having a certain inclination with respect to a general vertical longitudinal plane (12) of the support (6, 6 ') of said cutting elements (7, 7').

2. Cutting tool, according to the preceding claim, characterized in that it is possible to use eight active dihedral edges for each cutting insert, by rotating the insert itself around its longitudinal and transverse middle axes.

3. Utensil, according to the preceding claims, characterized in that said tooth (206) is made with substantially parallelepipedic shape and said housing seat (306) is complementary to said cutting insert (7) also substantially realized with parallelepiped shape.

4. Utensil, according to the preceding claims, characterized in that said cutting insert (7, 7 ') is fixed to the tooth (206) with fixing means (9, 10) positioned transversely with respect to the direction (A) of advance of the cutting chain (1).

5. Utensil according to claim 4, characterized in that said fixing means (9, 10) of the insert (7, 7 ') of cutting the tooth (206) are provided with a certain inclination with respect to a general horizontal plane of said cutting chain (1).

6. Utensil according to claim 5, characterized in that said fixing means comprise at least one bolt (9) or a screw that passes through said insert (7, 7 ') and said tooth (206) and further comprises a nut (10 ) of blocking arranged on the side of the tooth (206) opposite to that in which the seat (306) is made for the accommodation of the cutting insert (7, 7 ').

7. Utensil according to claim 6, characterized in that said nut (10) is fitted inside a housing (11) made in said support (6).

A tool according to claim 3, characterized in that said fixing bolt (9) comprises a truncated conical head (109) that is embedded in a corresponding complementary truncated conical seat (407) made from the external side wall of said element cutting post, said bolt being inserted in a through hole (406) of the tooth (206) and locked by a nut (10) threaded at its threaded end protruding beyond said through hole (406).

9. Utensil according to the preceding claims, characterized in that said cutting insert (7, 7 ') is inclined towards the back of the support (6, 6') with respect to the direction of advance (A) of the chain of cut (1).

10. Utensil, according to any of the preceding claims, characterized in that in a certain tool holder (2) of said cutting chain (1) the insert (7) has an inclined external side wall (507) in the opposite direction with respect to the outer side wall (507 ') of a insert (7') arranged in a tool holder link (2 ') successive or anterior to said determined tool holder link (2).