Background technology
As everyone knows, manual ceramic-tile cutting device is portable machinery, is intended to by manual cutting tool ceramic tile or stone brick be implemented cutting.
Usually, manual ceramic-tile cutting device has supporting base, extends a pair of newel post (head and afterbody) at least from this pedestal, and (single pole or two bar) slide rail is installed between newel post, with the manual translation of guiding knife rest.Described knife rest is at its actual cutting tool of bottom carrying that approaches the base supports plane most, and this cutting tool is generally hard alloy cutting wheel form.Be provided preferably with paired float plate on base plane, float plate is positioned at vertical fin both sides of arranging corresponding to line of cut.
Except these necessary elements, ceramic tile cutter also has scale rotation angle square usually, pivots in its end regions on the cutting machine pedestal, ceramic tile is resisted against on this angle square, so that regulate cutting position as required.For this purpose, this angle square is installed on the base supports plane and pivots.
Also well-knownly be the pivot axis of angle square skew for line of cut in some cutting machines; Except these cutting machines, propose rotation and just in time be positioned at some cutting machines that cut on the axis, this means that their use brings a series of benefit.
Yet, be arranged in rotation on the line of cut and remain the source of the worry of cutting machine fastness, particularly consider by sturdy material (glass, stoneware ...) the current ceramic tile that constitutes need apply suitably cutting tile of significant pressure to cutter.
Material select and extrusion process aspect progress and finally made and rotation be positioned at (this is known notion on the line of cut in the experience that is obtained aspect the design of framework and the configuration, for example, from EP315728, can learn) no longer be big problem, and also be convenient to obtain to satisfy fully the professional user in cut quality, hardness, be easy to use and durability aspect the device of needs.
Efficient cutting machine in this class is that for example that described in the EP1545849 that applies for Brevetti Montolit S.p.A name is a kind of.
However, the room for improvement that still has the user to require.Particularly, in order to obtain suitable firm degree, the rotation graduated L-square is transversely seem excessive (this increased the cutting machine width inadequately and make it is not so portable) on supporting plane still, but also is difficult to dismounting.On the other hand, the enough firm angle square of An Zhuaning can only be increased as optional mode in a conventional manner, yet this can limit and influence location and the size that floating ground is installed in the gripper shoe on the pedestal unfriendly.
In addition, the placement of the locking device of graduated L-square (be suitable for stably limit in cutting process angle square towards) and structure also bring the work globality and denounce.The fact is, is necessary to provide a kind of arrangement, makes that the rotation radian of angle square is bigger, may be greater than 90 °, and fastening force can badly not load rotating dog simultaneously, loads will cause locking or produce excessive gaps in its seat badly.
At last, what should consider is, when the operator more is ready never to pull down against angle square (not only for convenience, and in order not make Connection Element be subjected to possible infringement), be a problem against the entire length of angle square.In fact, angle square have significant length against bar, promptly equal the length of the ceramic tile interarea that cutting machine can hold.Therefore, when angle square was arranged to be attitude perpendicular to line of cut, angle square provided unacceptable substantially lateral dimension in the cutting machine course of conveying.Even angle square with respect to line of cut with the acute angle rotation and the situation of arranging under, one of them arm of angle square also can be cantilevered and stretch out outside the cutting machine head end, thereby has increased the longitudinal extension amount of cutting machine significantly.
Therefore, the object of the present invention is to provide the ceramic tile cutter of type hand, cross as top general description, it is equipped with against angle square, pivot against angle square is cutting on the axis, and should be against angle square along wide circular arc rotation, in the horizontal and little on the height that is higher than on the supporting plane, be easy to dismounting simultaneously.
Another purpose provides a kind of cutting machine, wherein, when not using, can reduce this size against angle square, and does not influence rotation and alignment accuracy.
The specific embodiment
As shown in Figure 1, ceramic tile cutter comprises pedestal 1 in mode known per se, and this pedestal 1 is for example formed by aluminium alloy compression casting, and the first and second post 1a and 1b are from the pedestal upper process, and translation guide rail B is installed between the first and second post 1a and the 1b.Two unsteady gripper shoe 2a and 2b are installed on the last plane of pedestal 1, and float gripper shoe 2a and 2b have constituted the supporting plane of ceramic tile to be cut.
Knife rest 5 is guided on translation bar B slidably, and knife rest 5 is provided with cutting tool, for example special steel cutting wheel (not shown).The layout of line of cut has also been determined in connection between knife rest 5 and the translation guide rail B, this line of cut is usually placed under the longitudinal axis of guide rail B and along the longitudinal axis of guide rail B, also is provided with division fin 1c with pedestal 1 one under the longitudinal axis of guide rail B and along the longitudinal axis of guide rail B.
The shape of knife rest has been established the operation of knife rest, promptly is called " pushing away " or " drawing " according to the used term in this area.Yet the innovative teachings (because cutting machine can arbitrarily be equipped with knife rest arbitrarily) that provides here is not provided this shape, therefore will it be further elaborated.
Locate one of at the two ends of pedestal 1, be positioned with the rotation graduated L-square traditionally, be suitable for limiting straight edge, the ceramic tile that is put on plate 2a and the 2b can be resisted against on this straight edge, so that ceramic tile arranged in required mode with respect to line of cut and directed.
According to the present invention, the rotation graduated L-square comprises: lower beam or rocking arm 10, and it is rotatably installed on the center rotating dog 11; And ruler (no matter having or do not have the graduation mark or the calibration line of measuring distance) 12, it can movably connect with lower shake-changing arm 10.Ruler 12 is designed to rotate above supporting plane, and constitutes the abutment edges of ceramic tile to be cut.
Rocking arm 10 is shaped as firm straight-bar, for example is formed from steel, and is housed inside in the pedestal 1 underlying foundation bottom compartment.Because rocking arm 10 is accommodated in the compartment or recess below the pedestal fully, promptly within the whole thickness of pedestal 1, therefore, in operating process, rocking arm 10 will not touch the installation surface of placing cutting machine.
Rocking arm 10 rotatably is fastened on the pedestal 1 by rotating dog 11, advantageously corresponding to the line of cut setting, promptly is positioned on the working face of cutting tool.Rocking arm 10 preferably keeps being adjacent to rotate freely with pedestal 1 lower surface (being surperficial S shown in Fig. 4).
In the context of specification of the present invention, the term D score or " on " and any other term about the position be for the use attitude of cutting machine, be that pedestal rests installation surface upward (for example workbench or floor), can be to providing reaction to knife rest institute applied pressure, so that ceramic tile to be cut is cut by the user.
Embodiment with reference to the accompanying drawings, pin 11 is simple bolt, it passes the hole 11a on the base thickness direction and is positioned at respective aperture 10a on the rocking arm 10.For the ease of installing, bolt 11 is arranged to head and contacts with the upper surface of pedestal 1, and nut 11b (promptly from the downside of pedestal 1, is secured to the end of thread of bolt 11 and being resisted against on the rocking arm 10 as shown in Figure 4) from following.
In addition, rocking arm has a pair of mount pin 13a and the 13b that extends from the arm end.Mount pin is configured to the chute 14 that passing of play is arranged in pedestal 1 neighboring area, protrudes from the supporting plane of cutting machine (as can be as can be seen from Figure 5) slightly.In order to allow rocking arm 10 around pin 11 rotations, groove 14 extends along the circular arc that with pin 11 is the center of circle.Preferably, as shown in drawings, groove 14 to be extending continuously along about 270 ° circular arc with respect to the line of cut symmetrical manner, and in the outside of a 1b of newel post process.
Therefore, pedestal 1 has an end regions, and the profile of its all edges groove 14 extends in the outside.
Preferably, penetrate pin 13a and 13b and be parallel to each other, and be arranged essentially parallel to the rotation that limits by pivotal pin 11.
Scale ruler 12 has a suitable following (not shown), and this following is defined as and is used for engaging with mount pin 13a and 13b.Thereby because pin 13a and 13b protrude from the supporting plane of cutting machine, although ruler 12 still is arranged on the supporting plane, ruler 12 still rotates with rocking arm 10 one, referring to Fig. 1 and 2.
Especially, ruler 12 maintenances are placed on float plate 2a and the 2b or a little and separate (depending on the type that engages with pin 13a and 13b) above float plate 2a and 2b.Therefore, the elongation of described plate is not subjected to against the restriction of ruler 12 existence, and only is partly to be subjected to the restriction that hole 11a exists.
Because along with the restriction that rocking arm 10 rotates together, ruler 12 is rotatably installed on the plane that is parallel to the ceramic tile supporting plane with respect to the rotation that is limited by pin 11, thereby around the axis rotation that is arranged on the line of cut.
According to preferred embodiment, ruler 12 can further be connected by the screw rod of being controlled by knob 15a 15 with rocking arm 10.Especially, ruler 12 has auxiliary through hole 12a, preferably be formed in the increase portion, and corresponding with the screwed hole 10b in being formed on rocking arm 10.Screwed hole 10b preferably is formed on the sidepiece of rocking arm 10 ends, is arranged at groove 14 belows.
By making under the situation that ruler 12 and rocking arm 10 connect with engaging of pin 13a and 13b,, among the screw rod 15 patchhole 12a, pass in thickness side's insertion groove 14 of pedestal 1, engage with screwed hole 10b then.
The rotation of screw rod 15 makes it be screwed into screwed hole 10b, thereby and cause knob 15 and ruler 12 against, thereby make described ruler near rocking arm 10, as sandwich pedestal is clamped between ruler and the rocking arm.Knob 15b turns thereby causes ruler 12 and rocking arm 10 to be locked on pedestal 1 or float plate 2a, the 2b by friction.Therefore, can establish the required direction of ruler 12 with respect to pedestal 1, thus and the position by knob 15 locking rulers.Two typical operation positions of the ruler 12 that can keep by the operation to knob 15 are (position of ruler is corresponding to present position among Fig. 4 among Fig. 2) as illustrated in fig. 1 and 2.
Fig. 6-8 has shown preferred embodiment.
In this case, rotatably install against angle square 112 on the pedestal 1 of ceramic tile cutter, it comprises first support frame 113, this first support frame 113 is rotatably installed on the pedestal 1 as described above (perhaps in optional mode, for example by other pivoting device), two adjutages or wing 114a and 114b are fastened on first support frame 113.
This first support frame be constituted as have plane confinement plate 113a that the supporting plane that is parallel to pedestal 1 is provided with and perpendicular to this supporting plane against plane 113b.On confinement plate 113a, described two adjutages or wing 114a, 114b are installed.Especially, two adjutages or wing 114a, 114b swingingly are installed on by articulated mounting 115 on the plane that is limited by plane confinement plate 113a, and articulated mounting 115 for example is to pass the thickness of the wing or arm 114a and 114b and be fastened to screw or threaded on first support frame 113.Therefore, articulated mounting 115 limits the rotation perpendicular to the plane confinement plate supporting plane of pedestal (promptly perpendicular to); Like this, two arm 114a and 114b are placed on the plane that is parallel to pedestal 1 supporting plane in the swing mode.
Arm 114a and the 114b installation on confinement plate 113a is loose, makes arm rotatable like this.
Two arm 114a and 114b are shaped as the prism-shaped main body of square-section, hollow preferably, so that limit two complete vertical faces: wherein one side is an interarea, is suitable for sliding on the plane that is limited by plane confinement plate 113a; Another side be suitable for limiting be used for ceramic tile to be cut against abutment surface.
Under any circumstance, no matter be what specific cross sectional shape, two arm 114a and 114b limit respectively be used for ceramic tile against abutment edges 114a ' and 114b ', described abutment edges must be in the alignment mutually ideally of the operational phase of angle square 112.For such purpose, preferably two arm 114a and 114b directly are not resisted against on the 113b of plane, because will have to processing plane 113b accurately like this, and particularly have to limit the position of articulated mounting 115 with respect to first support frame with equal accuracy ground.Preferably, as an alternative, have 116, two arm 114a of adjustment screw and 114b against plane 113b and all will be resisted against on the adjustment screw 116 when the operating position.By adjusting, just can make two abutment surface 114a ' and 114b ' perfection align, although do not require too high machining tolerance for articulated mounting 115 positions and first support frame, 113 positions to adjustment screw 116.Adjustment screw 116 is set at arm 114a and 114b and against between the 113b of plane, like this, leans against ceramic tile on abutment edges 114a ' and the 114b ' and tends to promote adjusting to two arm 114a and 114b.
Therefore, in the operating position, two arms or wing 114a and 114b are provided in alignment on first support frame 113, as shown in Figure 6.Whole angle square 112 thereby the horizontal expansion amount that has are enough to hold the full-size ceramic tile that is applicable to this cutting machine.Especially, whole elongation against angle square 112 can be identical with the path increment of knife rest 5.
First support frame 113 and whole angle square can rotate around the pivot on the pedestal.The rotation of angle square 112 make can establish as required ceramic tile institute against the orientation of abutment edges so that can be along the line of cut cutting tile of inclination.
When angle square did not re-use, two arm 114a and 114b can regain around articulated mounting 115 separately, so as they to be arranged essentially parallel to guide rod B ground alignment (Fig. 7) thus also reduce the lateral dimension of angle square widely, and do not need it is taken apart from pedestal.
For arrowhead as far as possible, the elongation of support frame 113 is not more than around the susceptor diameter of angle square pivot.For identical purpose, the elongation of useful is two arm 114a and 114b is no more than the range of knife rest.
As can be appreciated, structure disclosed herein makes ceramic tile cutter realize the purpose that is proposed in the preamble fully.
Be used for advantageously having eliminated the virtually any size restriction that is positioned on the cutting machine supporting plane against the existence of the virtual rotation of ruler 12, wherein, by being located at the rotation of the rocking arm constraint ruler 12 below the pedestal.
Rocking arm 10 also can be made for to have significant thickness but the supporting plane of cutting machine is not formed interferes (because it is set under the pedestal); the fastness of rocking arm 10 has been eliminated the needs of horizontal enhancing ruler 12; thereby this ruler is elongated, not too big and be easy to dismounting.With respect to two of rotation along diameter (being positioned at the two ends of rocking arm 10) and be far apart (similarly relatively, two pin 13a and the mutual spacing of 13b are the width of cutting machine end, for example 100mm is to the scope of 300mm) the position ruler 12 and the joint between the rocking arm 10 that limit guaranteed the good rigidity of assembly in use, even without the enhancing muscle is set.
Because unique function of pin 11 is that it has minimum dimension for rocking arm 10 defines fixing rotation (thereby do not have other structural support function, then have the structural support function in the prior art); Therefore, the hole 11a in pedestal does not cause remarkable influence to the drag of pedestal 1 yet, the location of other cutting machine parts without limits yet.
Can easily pull down against ruler 12, and do not have the danger that forfeiture is felt relieved on rotation, this is because jockey is kept off rotation.
The angle elongation of groove 14 has guaranteed the high rotation angle degree of ruler 12.
At last,, have the size that reduces greatly, and can not damage the precision of angle square rotation and can not damage according to of the perfection alignment of required cutting angle to ceramic tile against angle square by means of swing arm.
Yet, will be understood that the concrete structure of annotating above the invention is not restricted to; the above has only represented the non-limiting example of protection domain of the present invention; but multiple change example is possible, and this and does not depart from scope of the present invention all in the intelligential scope of those skilled in the art.
Especially, mount pin between ruler and the rocking arm and double pointed nail also can differently dispose.If preferred, for example a pair of and pins ruler 12 one can be provided, and this to pin can be designed to below the respective seat of place, rocking arm end formation engage.
At last, although clearly expression in the accompanying drawings, ruler 12 can be provided with scale or recess by traditional approach, measures and rotation distance apart being used to; Similarly, pedestal 1 have the indication anglec of rotation against recess, to be configured for being provided with by required angle the mark of ruler 12 with respect to line of cut.