WO2019115849A1

WO2019115849A1 - Burnishing/brushing machine

Info

Publication number: WO2019115849A1
Application number: PCT/ES2018/070776
Authority: WO
Inventors: Francisco Javier GAYA FUENTES
Original assignee: Personas Y Tecnología, S.L.
Priority date: 2017-12-12
Filing date: 2018-12-04
Publication date: 2019-06-20
Also published as: ES1202511Y; ES1202511U; ES1202511U8

Abstract

The invention comprises a conveyor belt (13), at least one roller (2) configured to rotate, and a head structure (3) coupled onto a bridge (4); wherein the roller is coupled onto the head structure; and wherein the roller is configured to be in contact with a surface (12a) of a part (12) resting on the conveyor belt (13). The head structure (3) is coupled with the bridge (4) via a hinged connection (5); wherein the angular position of said head structure around the hinged head (5) is controlled by an approximation device (20) which connects a portion of the head structure with the bridge (4). The approximation of the roller to the part takes place via a rocking movement that substantially smooths the tangential contact of said roller with respect to the exposed surface of the ceramic parts, avoiding irregular wear of the roller.

Description

SATIN-MACHINE-BRUSHING MACHINE

DESCRIPTION

Object of the invention

The present invention relates to a satin-brush machine that includes a roller for satining and brushing a surface of ceramic pieces, porcelain and other similar materials; where the roller is specially designed to treat the exposed surface of the pieces once the manufacturing process is finished, normally at the exit from the oven; the objective of the machine of the invention being to provide said surface with a finish with a high degree of satin, a greater regularity and a more pleasant touch, and therefore a surface seen more suitable and commercially attractive. It is also an objective of the invention to eliminate remains and irregularities of the surface seen from the pieces. It is also noted that the approach of the roller to the piece is by means of a tilting movement that substantially smoothes the tangential contact of said roller with respect to the visible surface of the ceramic pieces, avoiding irregular wear on the roller.

Technical problem to solve and background of the invention

The current satin-brush machines include roller approach systems (elements for satin and / or brush) that go down and up by a linear displacement; where each of said rollers is mounted on a mechanically driven moving head structure, so that the linear mobility of said head structure pulls the roller with it to bring it closer to ceramic pieces until they come into tangential contact, and to carry out the satin / brushed surfaces seen from the ceramic pieces and other materials.

This configuration of the roller approach systems is complex, slow and expensive; especially due to the fact that these machines usually comprise several rollers (brushed by phases) placed one after the other.

Another drawback is that the roller is usually driven by its two ends through two motor elements, which greatly complicates the exchange of the roller.

Another added drawback is that the outer surface of the rollers that is in contact with the piece prematurely desgata of irregular form, with which it is necessary to change the rollers also of premature form, what supposes an added cost.

Description of the invention

In order to achieve the objectives and avoid the drawbacks mentioned in the previous sections, the invention proposes a satin-brush machine comprising a conveyor belt, at least one roller configured to rotate, and a head structure coupled on a bridge.

The roller is coupled on the head structure, while said roller is configured to contact a surface of a piece resting on the conveyor belt to carry out the brushing and glazing of said surface of the piece of ceramic material or other materials.

The head structure is coupled to the bridge by an articulated connection; wherein the angular positioning of said head structure around the articulated connection is regulated by an approach device that links a part of the head structure with the bridge.

In an embodiment of the invention, the hinged connection comprises a hinged connection including an articulation axis.

The approach device comprises a spindle, a first support where the spindle is screwed, and two first lateral bodies in which articulate two first opposite extensions that are part of the first support; where the first two lateral bodies are attached to the head structure.

The approach device further comprises a second support that includes two second opposing extensions that articulate in two seconds lateral bodies integral with the bridge; where an end section of the spindle is coupled to the second support.

The approach device also comprises an upper motor element configured to transmit a rotary movement to the spindle; where said element Upper motor is fixed to the first support.

The roller is coupled by its opposite ends on two reinforcements: one anterior and one posterior, which are attached to the bridge.

A lateral motor element is arranged on the rear frame that is configured to transmit a rotational movement to the roller.

Thus, with the approach device and the articulated connection, the approximation of the roller with respect to the ceramic piece resting on the conveyor belt is substantially improved and refined.

Thus, the approximation of the roller to the ceramic piece is made by the articulated connection in combination with the approach device.

The machine of the invention can comprise one or more brushing rollers (brushed by phases) placed one after the other, so that in this second case the rollers are coupled to respective head structures and these are linked to other bridges along the conveyor belt through respective approach devices.

An important advantage of the invention is the way to attack the ceramic piece, which is more progressive and less aggressive, in addition to achieving greater rigidity that avoids vibrations during the use of the machine; all this because the planing roller itself performs an arcuate path with a slight angular movement around the articulated connection in the direction of advance of the ceramic piece dragged by the conveyor belt during the approach phase of the planing roller to said ceramic piece; highlighting that other conventional satin-planing machines suffer from lack of rigidity, and the way to attack the ceramic piece is less progressive and more aggressive, with which the quality of the product obtained is lower than that obtained with the machine of the invention.

Another advantage of the machine of the invention is its simplicity in the way of driving and supporting the brushing rollers, materialized by a simple lateral tightening mechanism, located at a first end of the roller; where said first end is opposite to a second end of the roller in which the lateral motor element is located which transmits its rotary movement to the roller.

It is emphasized that the roller is only actuated by one of its ends, the other end being only the one that presses like a jaw the axis of said roller on its two points of support.

Below, in order to facilitate a better understanding of this descriptive specification and forming an integral part thereof, a series of figures are attached in which the object of the invention has been represented with an illustrative and non-limiting character.

Brief description of the figures

Figure 1 shows a perspective view of a satin-brush machine, object of the invention.

Figure 2.- Shows a profile view of the machine, where a brushing roller stands in a resting position.

Figure 3 shows a view similar to figure 2, where the roller is in tangential contact with a surface of a piece to be satin / brushed.

Description of an embodiment of the invention

Considering the numbering adopted in the figures, the satin-brush machine 1 comprises a roller 2 coupled on a head structure 3 which is coupled to a bridge 4 by means of an articulated connection 5; wherein said head structure 3 is configured to swing about an axis 5a forming part of the articulation connection 5; and wherein the mobility of said head structure 3 is carried out by an approach device 20.

The approach device 20 comprises a spindle 6, a first support 7 where the spindle 6 is threaded and two first lateral bodies 8 in which articulate two first opposite extensions 7a forming part of the first support 7. The first two lateral bodies 8 are joined to the head structure 3, while an end section of the spindle 6 is coupled on a second support 9 that includes two second opposite extensions 9a that articulate in two seconds lateral bodies 10 integral with the bridge 4. The rotation of the spindle 6 is carried out by an upper motor element 11 which is fixed to the second support 9, so when the rotation of the upper motor element 11 transmits its rotary movement to the spindle 6 causing a tilting movement 18 of the head structure 3 that pulls the roller 2 with it: either to bring the roller 2 closer to a piece 12 resting on a conveyor belt 13 or to move said roller 2 away from said piece 12; all this depending on the direction of rotation of the spindle 6.

Thus, by means of said tilting movement 18 of the head structure 3, the roller 2 can approach a surface 12a of the piece 12 supported on the conveyor belt 13 located below the roller 2, where the roller 2 has a cylindrical shape and is configured to rotate and tangentially contact the surface 12a of the advancing piece 12 driven by the conveyor belt 13, so that the roller 2 has an outer abrasive surface 2a for satining and brushing said piece 12 advancing entrained by the belt. conveyor 13

During the rotation of the spindle 6, the first support 7 as well as the head structure 3 adopt different angular positions, as occurs with the assembly of the second support 9 and upper motor element 11.

The roller 2 is coupled by its opposite ends on two reinforcements: an anterior 14 and a rear one 15 that are joined to the bridge 4.

A lateral motor element 16 is fixed on the rear reinforcement 15 to transmit the rotary movement to the roller 2, while a conventional clamping mechanism 17 configured to be able to mount and dismount the roller 2 is coupled on the front reinforcement 14 and is also configured for to be able to adjust the tightening of the roller assembly 2 in its axial direction.

The roller 2 is arranged in a transverse direction parallel to the conveyor belt 13, so that as the piece driven by the conveyor belt 13 advances in a longitudinal direction and the outer surface 2a of the roller 2 is in tangential contact 19 with the surface 12a of the piece 12 performs the operation of brushing and sanding said surface 12a of the piece 12. It should be noted that the transverse direction of the roller 2 may be perpendicular or oblique with respect to the longitudinal direction of the conveyor belt 13.

Claims

A satin-brush machine, comprising a conveyor belt (13), at least one roller (2) configured to rotate, and a head structure (3) coupled on a bridge (4); where the roller (2) is coupled on the head structure (3); and wherein the roller (2) is configured to contact a surface (12a) of a piece (12) resting on the conveyor belt (13); characterized in that the head structure (3) is coupled to the bridge (4) by means of an articulated connection (5); wherein the angular positioning of said head structure (3) around the articulated connection (5), is regulated by an approach device (20) that links a part of the head structure (3) with the bridge (4).

2. Sanding machine-planer, according to claim 1, characterized in that the approach device (20) comprises:

- a spindle (6), a first support (7) where the spindle (6) and two first lateral bodies (8) screw in which articulate two first opposite extensions (7a) forming part of the first support (7); where the first two lateral bodies (8) are joined to the head structure (3);

- a second support (9) including two second opposing extensions (9a) that articulate in two seconds lateral bodies (10) integral with the bridge (4); where an end section of the spindle (6) is coupled to the second support (9).

3. Sanding machine-planer, according to claim 2, characterized in that it comprises an upper motor element (11) configured to transmit a rotary movement to the spindle (6); wherein said upper motor element (11) is fixed to the first support (7).

4. Brush-satin machine according to any one of the preceding claims, characterized in that the articulated connection (5) comprises a hinged that includes a hinge axis (5a).

5. Brush-satin machine according to any one of the preceding claims, characterized in that the roller (2) is coupled by its opposite ends on two reinforcements: one (14) and another rear (15), which are attached to the bridge (4).

6. Brush-satin machine, according to claim 5, characterized in that a lateral motor element (16) that is configured to transmit a rotary movement to the roller (2) is fixed on the rear reinforcement (15).