JP2020097490A - Method and device for advancing product to be molded - Google Patents

Abstract

To provide a method and a device for advancing a product to be molded.SOLUTION: The method of advancing a sheet-like product includes: a step to transport multiple, first products to the first area of the advancing device; a step to abut first movable pressing means to the first products along the first direction; a step to advance the first products along the second direction from the first area to the second area and cross at least the first direction by intermittently moving after continuously moving; a step to abut the second pressing means that is movable along the first direction to the second products; a step to advance the second products along the second direction to the second area by partly advancing the first products and at the same time intermittently moving after continuously moving; a step to move the first pressing means in the second area along the third direction that crosses the second direction and separates the first pressing means from the first products; and a step to move the first pressing means along the fourth direction that is horizontally reverse to the second direction while the second pressing means continuously presses the second products along the second direction.SELECTED DRAWING: None

Description

The present invention relates to a method and apparatus for advancing a molded product.

Although not particularly limited, the present invention can be applied to advance a sheet-shaped metal alloy product or aluminum alloy product to be formed.

In the technical field of molding processing, various markets are produced, for example for the production of parts intended to produce caps, crown caps, threaded caps, etc. used for closing the opening of containers or bottles. We constantly face the need to "produce more with less" to improve productivity and production efficiency.

With regard to forming machines, production lines are known which are equipped with a device for advancing sheet metal products which can likewise be connected to known forming devices. Sheet metal may have dimensions that are substantially smaller than other dimensions, such as a thickness (in units of 1/10 mm) that is substantially smaller than its width (eg, comprised between 200 and 300 mm) and ( For example, it has a length of 800 to 900 mm.

Some known manufacturing lines include a cyclically driven press for pressing a sheet of metal, and a first movable moveable along a substantially horizontal first translational direction that contacts and separates from the press. A handling device and a second handling device movable along a first translation direction and a second transverse direction orthogonal to the first translation direction are provided. The first handling device includes a gripper attached to the first end for gripping a sheet edge and translating the sheet in a stepwise manner along a first direction. On the other hand, the second handling device also grips the sheet edge at a portion different from the portion gripped by the first handling device and translates the sheet edge stepwise along the first and second directions. And a gripper attached to the section. The metal sheet is fed to the die via a first handling device to carry out a first part of the press cycle, and subsequently the metal sheet is fed from the first handling device to carry out a second part of the press cycle. Transfer to the second handling device. In the first part of the press cycle, a pressing process is performed that presses a series of shapes against the sheet at the end of each forward or reverse step of the first handling device. In the second part of the press cycle, the first handling device releases the sheet from the gripped state and carries out the movement process obtained by combining the step movements along the first (forward or backward) direction (one or the other). Thus, the above-mentioned sheet is gripped and moved.

Another known production line is two rails spaced parallel to each other to act as slide guides for the workpieces to be transported and between the two rails to slide the workpieces. And a transport unit having a bar suitable for ensuring the support therein. The transport unit further includes a carriage slidable along a guide bar formed of a substantially trapezoidal frame. The carriage is operated by a chain, and the chain is operated by a sprocket integrated with the shaft of the gear motor. A first rod and a second rod are attached to both ends of the carriage, a first cross piece is attached to the first rod, and a second cross piece is attached to the second rod. Each cross piece abuts the end of the work piece and has at its end an element shaped to move the work piece forward. In use, the carriage advances from the initial position to bring the forming element of the first crosspiece into contact with the first work piece and advance the first work piece from the preset first position to the second position. The carriage is retracted to return to the first position, leaving the first workpiece in the second position. The carriage is then advanced again, bringing the forming elements of the first crosspiece into contact with the second workpiece. Then, the forming element of the second cross piece is brought into contact with the first workpiece that is stationary in the second position. Due to the structure of the carriage and its movement, some workpieces can be advanced with reciprocating movement to a machine tool, eg a molding machine.

One drawback of using the disclosed manipulator and transport unit is that the product advance is clearly slow and the product is only carried and inserted into the molding machine in intermittent motion. Also, the structure of the just-disclosed manufacturing line is complicated, and the reliability of operation is not so high. In fact, if one of the two manipulators or the transport unit is damaged or broken, the operation of the entire production line is endangered and stopped. In this way, the production time for the finished product is increased.

A further known production line comprises a conveyor with a lead screw connected to and driven by a stepper servomotor for conveying an object, for example a bottle, both in continuous/continuous mode and in intermittent/step mode.

Nevertheless, advancing the product in the form of multiple sheets of sheet metal with lead screws is very important for the shape and dimensions of the sheet metal sheet product being conveyed.

Therefore, in light of the above, there is ample room to improve current systems for advancing molded articles.

One of the objects of the present invention is to provide a method or device which is capable of overcoming one or more of the above mentioned limitations of the prior art.

One of the objects of the present invention is to improve a method or advancing device for advancing sheet metal or aluminum alloy products in sheet form.

One of the objects of the present invention is to quickly and accurately advance a sheet-form product of sheet metal.

One of the objects of the present invention is to simply and accurately release a product in the form of a metal sheet in a forming device.

One of the advantages is to reduce the time to feed the molding equipment.

One of the advantages is to avoid stopping the production cycle if the advancing device fails.

One of the advantages is that it provides a structurally simple advancement device and an inexpensive advancement method that is easy to implement.

Such objects and advantages, as well as other objects, are achieved by a method or apparatus of one or more of the claims set forth below.

In one embodiment, a method of advancing a sheet metal product in the form of a sheet to be formed comprises delivering a first product of a plurality of products to a first region of an advancing device and at least along a first direction. A step of bringing the first movable pressing means into contact with the first product, and advancing the first product from the first region of the advancing device to the second region along the second direction, and performing continuous motion and then intermittent motion. Crossing said at least first direction, abutting a second product with a second pressing means movable along at least a first direction, and advancing the first product at least partially after a continuous movement. Advancing the second product along the second direction to the second region by simultaneous intermittent movement; and moving the first pressing means along the at least third direction across the second direction in the second region. The step of separating the first pressing means from the first product, and in order to return the first pressing means to the first region, the first pressing means is moved in a continuous motion in the fourth direction in the opposite direction parallel to the second direction. Moving along, the second pressing means continues to press the second product along the second direction.

In one embodiment, an advancing device for advancing a plurality of sheet metal products in sheet form to be formed includes at least along a first direction for abutting the first product in the first region, the advancing device in the first region. To advance the first product to the second region, along a second direction transverse to the first region, and to separate it from the first product, at least along a third direction transverse to said direction, again the first region. The first pressing means movable along a reverse fourth direction parallel to the second direction, and the first pressing means connected to the first pressing means for continuous movement or intermittent movement. First motor means movable along two directions and drivable to move the first pressing means along a fourth direction in a continuous motion, and first pressing along at least a first direction or at least a third direction A first drive means connected to the first pressing means for moving the means, and a second product from the first area at least along the first direction for abutting the second product in the first area. Movable along the second direction for advancing to the second region, along at least a third direction for moving away from the second product, and along a fourth direction for moving to the first region again A second press means and a second press means connected to the second press means and drivable for advancing the second press means in a continuous or at least partially intermittent motion along a second direction while the first motor means is Second motor means for advancing the first pressing means and moving the second pressing means in a continuous motion along the fourth direction, and the second pressing means are connected to the second pressing means in at least the first direction and at least the first direction. Second driving means for moving along three directions.

ADVANTAGE OF THE INVENTION According to this invention, the sheet|seat product which consists of a molding material can be advanced to a molding station by contact|abutting a pressing means to a product, or separating a pressing means from a product simply, quickly, and effectively. Is.

Further features of the invention and the drawings will become more apparent from the following description with the help of the accompanying drawings, which show by way of non-limiting example embodiments of the invention.
The perspective view of the advance device concerning the present invention. 2 is a schematic side view of the advancing device of FIG. 1 showing the first pressing means in a low position. FIG. 2 is a schematic side view of the advancing device of FIG. 1 showing the first pressing means in a high position. FIG. Sectional drawing of the operating unit of the advancing device of FIG. The detailed view of FIG. The detailed view of FIG. The detailed view of FIG. The detailed view of FIG. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention. FIG. 3 is a schematic plan view showing a supply step of supplying a plurality of sheets to the molding machine according to the present invention.

With reference to the accompanying drawings, a deformable material, especially a deformable material, which can be periodically subjected to a deforming action of a resin such as a molding or drawing operation so as to have a desired shape at the end of a processing cycle, for example, a cap shape, 1 schematically shows an advancing device 1 for advancing a sheet metal product in the form of a sheet made of metal alloy or aluminum alloy. The advancing device 1 capable of being combined with the forming device S shown in the accompanying drawings has a function of advancing a plurality of products P1, P2, P3,...

Each product may include a first edge Pa and a second edge Pb that face each other, and a third edge Pc and a fourth edge Pd that laterally face each other with respect to the first edge Pa and the second edge Pb.

The thickness of the product is variable but is still suitable for molding/pressing operations to obtain a defect-free final shape.

At least one of the first edge Pa, the second edge Pb, the third edge Pc, or the fourth edge Pd can be formed. For example, in FIGS. 8 to 15, the third edge Pc and the fourth edge Pd are circular. A product with perimeter arched edges and straight edges is shown.

Each part of the plurality of products P1, P2, P3 can be provided with a notch formed in the plurality of parts to facilitate positioning of the products in the molding machine S. These parts are actually intended to be cut at the inlet of the molding machine to obtain multiple openings. Then, a plurality of movable guide pins (not shown) can be inserted into these openings and placed in the molding machine S. The plurality of pins are movable in a direction transverse to the traveling direction of the product in the molding machine. In the molding machine S, it is known to advance a general product in an intermittent motion, and the step of resting the product and the step of advancing the product to bring another part of the product to the molding area are performed alternately. .. A plurality of guide pins are inserted into the openings when the product is stationary. In this way, the correct positioning of the sheet in the molding machine S is ensured and accidental movement is prevented.

In FIG. 1, the advancing device 1 is shown in schematic form. The advancing device 1 may comprise a support frame, which is placed on a support surface, which is not shown in the accompanying drawings for the sake of simplicity. At least one first actuator unit 11 known to the expert can be attached to the support frame.

The first actuator unit 11 is an electromechanical actuator, for example, a screw/nut unit, a screw/nut screw combination, a ball screw, a rack and pinion, a belt or a chain, a linear motor, a pneumatic, magnetic or hydraulic actuator. And so on.

If the first actuator unit 11 is arranged to transform a rotary movement into a linear movement, it is a first motor means 6 or an electric motor of a commercially known type, an electric motor, a reduction member (if provided), an electronic module, And an angular position conversion means, for example an encoder. On the other hand, when the first actuator unit 11 is not provided so as to convert the rotational movement into the linear movement, it can be connected to the linear first motor means 6 having the linear position converting means.

The first motor means 6 can be attached to the end of the first actuator unit 11.

The first motor means 6 can be connected to an external source (e.g. computer) not shown by using a cable or WiFi, NFC, Bluetooth network.

An angle or linear conversion means, not shown, can measure the angle or linear movement of the first motor means 6 described above and send an (electrical) position signal to an external source.

In use, the external source processes the received position signal to drive the first motor means 6 for example in a continuous motion of the first time interval or in an intermittent motion of the second time interval, the first motor means 6 Can be configured to transmit an (electrical) drive signal to. The first and second time intervals make it possible to associate an angle or a set linear, continuous or intermittent movement of the first motor means 6.

The external source can also be configured to send an (electrical) inversion signal to the first motor means 6 to change the direction of rotation or the direction of forward movement.

In the embodiment shown in FIG. 1, a second actuator unit 13 structurally identical to the first actuator unit 11 can also be attached to the support frame. The second actuator unit 13 can be connected to a second motor means 7 which is structurally identical to the first motor means 6.

The second motor means 7 can be driven independently of the first motor means 6. In other words, the second motor means 7 can be connected to an external source and can be provided with linear or angular position conversion means arranged for measuring movement and transmitting other position signals to the external source. That is, the external source sends another (electrical) drive signal to the second motor means 7 to drive the second motor means 7 in continuous motion of the first time interval or in intermittent motion of the second time interval, or It is arranged to send another (electrical) inversion signal to the second motor means 7 to change its rotational or forward direction. The drive signal and the another drive signal may be simultaneously transmitted to the first motor means 6 and the second motor means 7.

The second actuator unit 13 is arranged on the support frame parallel to the first actuator unit 11 with a width of the sheet-shaped sheet metal product, for example, at substantially the same distance as the first edge Pa.

The first actuator unit 11 and the second actuator unit 13 have a plurality of products P1, P2, P3, for example, a first guide attached to the first actuator unit 11 and a second guide attached to the second actuator unit 13. Guide means can be attached for The guide means are not shown in detail in the accompanying drawings in order not to obscure the other components of the advancing device 1 disclosed below. The guide means define an advancing surface 16 of the plurality of products P1, P2, P3, which are shown schematically in dashed lines in FIG. The advancing surface 16 can include a first region 1a located near the first end of the first actuator unit. The second region 1b is located near the second end of the first actuator unit 11 and on the opposite side of the first end.

The first area 1a can be in the vicinity of a loading area, not shown for the sake of simplicity, in which a plurality of products P1, P2, P3 can be arranged.

On the other hand, the second region 1b can be opposed to the inlet region of the molding machine S, which is not shown in FIG.

The advancing device 1 comprises a position sensor (not shown) arranged in the second area 1b to detect the position of a general part of the plurality of products P1, P2, P3 before the products are inserted. You can The position sensor can be inductive, capacitive, magnetic, ultrasonic, or optical.

As shown in FIGS. 2A and 2B, a first portion L1 and a second portion L2 adjacent to the first portion L1 may be defined on the first actuator unit 11. The first portion L1 and the second portion L2 connect the first end and the second end of the first actuator 11. A third portion L3 and a fourth portion L4 adjacent to the third portion L3 may be defined on the second actuator unit 13. The first portion L3 and the second portion L4 connect the first end of the second actuator 13 to the second end.

Between the first actuator unit 11, in particular between the actuator unit 11 and the advancing surface 16, the first carriage 10 connected to the movable element of the first actuator unit 11 can be arranged (for example, when a nut screw actuator unit is provided). Is connected to the nut, and is also connected to the belt, piston, etc.). The first carriage 10 can slide on the base surface 11a of the first actuator unit 11 so as to move between the first end portion and the second end portion of the first actuator unit 11.

When the first actuator unit 11 is driven, the first carriage 10 moves to advance the first product P1 of the plurality of products P1, P2, P3 from the first area 1a to the second area 1b.

On the second actuator unit 13, in particular between the second actuator unit 13 and the advancing surface 16, the second carriage 12 connected to the movable elements of the second actuator unit 13 can be arranged as described above. The second carriage 12 slides on the base surface 13a of the second actuator unit 13 and can move between its first end and second end.

When the second actuator unit 13 is driven, the second carriage 12 moves to advance the second product P2 of the plurality of products P1, P2, P3 from the first area 1a to the second area 1b.

In FIG. 1, as an example only, the advancing device 1 in which the first carriage 10 is located at the first end of the first actuator unit 11 and the second carriage 12 is located at the second end of the second actuator unit 13 is shown. It is shown.

To convey one product P1, P2, P3 one at a time from the loading zone to the first zone 1a of the advancing device 1, a transport means, not shown, known to the expert, such as a mechanical arm or a pressing device. Can be provided. In particular, the conveying means can be configured to press the product edge, for example the first edge Pa.

The first carriage 10 and the second carriage 12 are structurally similar.

The first actuator unit 11 can include the limit switch 4 that can detect the first carriage 10. The limit switch 4 is shown in FIG. 5 and can be attached to the first side wall of the first actuator unit 11. The limit switch 4 is provided to ensure that everything measured by the (linear or rotational) position conversion means corresponds to the actual position of the actuator or first carriage 10. In this way, possible (undesirable) problems during the driving of the first actuator unit 11, for example sliding of the locking element due to friction, or incorrect meshing between the timing belt and the toothed pulley can be detected.

Similarly, the second actuator unit 13 can be provided with a limit switch 4'having the same structure and function as the limit switch 4 and attached to the side wall of the second actuator unit 13 at a set distance. The limit switches 4, 4'can be of the magnetic type.

The first carriage 10 can be provided with abutment elements 19 and the second carriage 12 can be provided with abutment elements 19'. The abutment elements 19, 19' can be formed of a ferrous material arranged to interact or cooperate with the first limit switches 4, 4'. The abutment element 19 can be fixed to the first carriage 10 and the abutment element 19 ′ can be fixed to the second carriage 12 by known fixing means, for example screws or bolts. When the first carriage 10 (or the second carriage 12) reaches the vicinity, the abutment element 19 faces the side wall of the first actuator unit 11 so as to face the limit switch 4 (or the limit switch 4′). They extend substantially parallel (also the abutment element 19 ′ extends substantially parallel to the side wall of the second actuator unit 13 ).

In other words, the abutment elements 19, 19' are designed so that they interact with the limit switches 4, 4', so that the aforementioned limit switches 4 can carry out the aforementioned control functions.

The limit switches 4 and 4 ′ may be inductive type, optical type or the like. In an embodiment not shown, it is not necessary for the advancing device to be provided with the aforementioned limit switch.

The support bracket 14 is attached and fixed to the first carriage 10. A drive means of a known type can be connected to the support bracket 14, for example a pneumatic actuator.

In the embodiment shown in FIGS. 3 to 6, the support bracket 14 has a substantially “S” shape, and has a base portion 14 a fixed to the base of the first carriage 10 and a side portion 14 b (hereinafter, referred to as “side portion 14 b” to which the first driving means 8 can be fixed). And a separate base portion 14c to which the first cable holder chain 17 can be fixedly connected, and accommodates a plurality of connection cables for connecting between the external source and the first motor means 6. Is arranged for.

Similarly, the support bracket 14 ′ includes a base portion 14 a ′ fixed to the base of the second carriage 12, a side portion 14 b ′ (disclosed below) to which the second drive means 9 can be fixed, and a second cable holder chain 18. To be connected in a fixed state to another base portion 14c', which can be fitted and fixed to the second carriage 12 which can have a substantially "S" shape, and which connects between the external source and the second motor means 7. Arranged to accommodate the connecting cable of the.

The first drive means 8 and the second drive means 9 are structurally similar and can comprise pneumatic type actuators. The first drive means 8 and the second drive means 9 may comprise linear type pneumatic actuators.

Each actuator can comprise the aforementioned hollow cylinder 8a, 9a, which acts as a guide for the piston 8b, 9b inserted therein.

The first drive means 8 and the second drive means 9 are intended to distribute the flow of pressurized means, for example pressurized air, to move the pistons 8b, 9b in the hollow cylinders 8a, 9a, in particular described in detail below. Thus, the hollow cylinder 8a is provided in fluid connection with a compressor of a known type arranged to move from the upper end 22 to the lower end 23 or vice versa.

The first pressing means 2 can be connected to the first drive means 8, in particular the piston 8b, by means of fixing means of known type, for example screws or bolts. The first pressing means 2 can include a support plate 2c to which the first pressing element 2a and the second pressing element 2b are attached.

The piston 8b can be driven to move in the hollow cylinder 8a at least along the first direction D1, especially from the lower end 23 to the upper end 22 of the hollow cylinder 8a (from bottom to top). The first pressing element 2a and the second pressing element 2b are moved at least along the first direction D1 and brought into contact with the first product P1 arranged on the advancing surface 16 of the first region 1a. The first pressing element 2a and the second pressing element 2b can in particular be brought into contact with the third edge Pc.

The second pressing means 3 can also be connected to the second drive means 9, in particular the piston 9b, by means of fixing means, for example screws or bolts. The second pressing means 3 can include a support plate 3c to which the first pressing element 3a and the second pressing element 3b are attached.

The second pressing means 3 can move at least along the first direction D1 and contacts the second product P1 in the first region 1a.

The piston 9b can be driven to move inside the hollow cylinder 9a at least along the first direction D1, particularly from the lower end 23 to the upper end 22 of the hollow cylinder 9a (from bottom to top). The first pressing element 3a and the second pressing element 3b are moved at least along the first direction D1, and the first pressing element 3a and the second pressing element 3b are arranged on the first advancing surface 16 of the first region 1a. Contact the product P2. The first pressing element 3a and the second pressing element 3b can in particular be brought into contact with the third edge Pc.

The first pressing element 2a, 3a and the second pressing element 2b, 3b can be a polyhedron, for example a parallelepiped with an undercut 20, as shown in FIGS. The undercut 20 is dimensioned to allow a simple contact between the pressing element and the third edge Pc of the general product without hitting or undesired collision. The first pressing elements 2a, 3a and the second pressing elements 2b, 3b are arranged parallel to each other on the respective support plates 2c, 3c.

The first pressing element 2a and the second pressing element 2b are separated from each other so as to contact the linear edge of the third edge Pc. The same applies to the first pressing element 3a and the second pressing element 3b.

The first motor unit 6 drives the first carriage 10 so as to advance the first actuator unit 11 from the first end portion to the second end portion in the second direction D2. The first motor means 6 drives the first carriage 10 so as to move forward in a continuous motion of a first time interval and an intermittent motion of a second time interval.

The second motor means 7 is also driven to advance the second carriage 12 (that is, the second pressing means 3) from the first end portion of the second actuator unit 13 to the second end portion in the second direction D2. The second motor means 7 drives the second carriage 12 so as to move forward in the continuous motion of the first time interval and the intermittent motion of the second time interval.

The second direction D2 is a substantially horizontal direction and is oriented parallel to the support surface on which the advancing device 1 is placed. At least the first direction D1 described above may cross the second direction D2. At least the first direction D1 can be tilted at an angle between 40° and 45°, in particular 42°, with respect to the aforementioned second direction D2.

The first motor means 6 is interlocked with the intermittent operation of the tool of the molding machine S to move the first carriage 10 (that is, the first pressing means 2 and the first product P1) toward the molding machine S intermittently. Drive in motion. Similarly, the second motor means 7 interlocks with the intermittent motion of the tool of the molding machine S to advance the second carriage 12 (that is, the second pressing means 3 and the second product P2) toward the molding machine S. It is driven by intermittent motion.

When the first carriage 10 advances in the second direction D2, the first pressing means 2 causes the first product P1, particularly the third edge Pc thereof, to move from the first area 1a to the second area 1b on the advancing surface 16. It is arranged to press.

Similarly, when the second carriage 12 advances in the second direction D2, the second pressing means 3 causes the second product P2, particularly the third edge Pc thereof, to move from the first area 1a to the second area Pa on the advancing surface 16. It is arranged so as to press down to the region 1b.

The first motor means 6 is driven in continuous motion for the first portion L1, intermittent motion for the second portion L2, and intermittent motion for advancing the first carriage 10 (that is, the first pressing means 2). ..

Similarly, the second motor means 7 can be driven so as to move the second carriage 12 (that is, the second pressing means 3) forward with the continuous movement of the third portion L3 and the intermittent movement of the fourth portion L4. ..

The first portion L1 and the second portion L2 extend in a direction parallel to the second direction D2 and connect the first end portion of the first actuator unit 11 to the second end portion.

Further, the third portion L3 and the fourth portion L4 extend in a direction parallel to the second direction D2 and connect the first end portion of the second actuator unit 13 to the second end portion.

In the first part L1 (or the third part L3), the first product P1 (or the second product P2), particularly the fourth edge Pd of the first product P1 (or the second product P2) reaches near the molding machine. Before, it corresponds to the space traversed by the first pressing means 2 (or the second pressing means 3) which continuously moves at the first time interval. The term "near the molding machine" means the inlet area of the molding machine S, or a part of the second area 1b of the advancing device 1 before the entrance of the molding machine S described above.

The second portion L2 (or the fourth portion L4) has a preset second time interval before the third edge Pc of the first product P1 (or the second product P2) reaches the vicinity of the molding machine S. It corresponds to the space traversed by the first pressing means 2 (or the second pressing means 3) in the intermittent motion.

The first portion L1 has substantially the same range as the third portion L3, and the second portion L2 has substantially the same range as the fourth portion L4.

In the second region 1b, in order to separate the first pressing element 2a and the second pressing element 2b from the first product P1, particularly the third edge Pc, the first pressing element 2a and the second pressing element 2b are at least in the third direction. The piston 8b can be driven to move along D3 to move the inside of the hollow cylinder 8a, in particular from the upper end 22 to the lower end 23 (top to bottom) of the hollow cylinder 8a.

Similarly, in the second region 1b, in order to separate the first pressing element 3a and the second pressing element 3b from the second product P2, particularly the third edge Pc, at least the first pressing element 3a and the second pressing element 3b are provided. By driving the piston 9b so as to move along the third direction D3, the piston 9b can be moved inside the hollow cylinder 9a, particularly from the upper end 22 to the lower end 23 (top to bottom) of the hollow cylinder 8a. At least the third direction D3 can cross the aforementioned second direction D2.

The undercut 20 allows the first pressing element 2a, 3a and the second pressing element 2b, 3b to be easily separated from the third edge Pc of the general product without hitting or undesired gouging.

(Although it does not have to be the first area 1a or the second area 1b), the first pressing means 2 or the second pressing means 3 is always moved at least in the first direction D1 during, for example, a forced stop or a failure of the forward device 1. By moving the first pressing means 2 or the second pressing means 3 at least along the third direction D3, the first pressing means 2 or the second pressing means 3 can be easily separated from the product edge and then brought into contact again.

At least the third direction D3 is in the opposite direction parallel to at least the first direction D1, and is inclined at an angle between the second direction D2 and 40° to 45°, particularly 42°.

Obviously, at least the third direction D3 need not be at least parallel to the first direction D1.

The first motor means 6 drives the first carriage 10 so as to move it from the second end portion of the first actuator unit 11 to the first end portion thereof along a reverse fourth direction D4 which is parallel to the second direction D2. It is possible. Similarly, the second motor means 7 can be driven so as to move the second carriage 12 along the fourth direction D4 from the second end portion of the second actuator unit 13 to the first end portion.

Along the fourth direction D4, the first motor means 6 can be driven to move the first carriage 10 (that is, the first pressing means 2) in a continuous motion. Similarly, the second motor means 7 can be driven so as to move the second carriage 12 (that is, the second pressing means 3) in a continuous motion along the fourth direction D4. The first carriage 10 and the second carriage 12 can continuously move along the second direction D2 at a speed similar to or different from the speed of moving along the fourth direction D4.

The first pressing means 2 and the second pressing means 3 can move forward in the “high position” along the second direction D2, that is, with the pistons 8b, 9b positioned at the upper ends 22 of the cylinders 8a, 9a. The first pressing means 2 and the second pressing means 3 can move in the “low position” along the fourth direction D4, that is, with the pistons 8b, 9b positioned at the lower ends 23 of the cylinders 8a, 9a.

Thereby, the movement can be optimized, and when the first pressing means 2 and the second pressing means 3 move along the fourth direction D4, the first pressing means 2 advances along the second direction D2. The movement of the second pressing means 3 or the movement in the opposite direction can be prevented.

The second motor means 7 is driven at least partially simultaneously with the first motor means 6. In other words, the external source is a continuous or intermittent movement that is at least partially simultaneous with the driving of the first motor means 6 to advance the first pressing means 2 from the second direction D2 in a continuous or intermittent movement. , The second pressing means 3 is configured to be advanced along the second direction D2.

At least the first direction D1, the second direction D2, at least the third direction D3 and the fourth direction D4 can define a closed path in which the first pressing means 2 and the second pressing means 3 can move. In particular, at least the first direction D1, the second direction D2, at least the third direction D3 and the fourth direction D4 define a first closed path in which the first pressing means 2 of the first actuator unit 11 can move. The directions D1, D2, D3, D4 also define a second closed path in which the second pressing means 3 of the second actuator unit 13 moves independently of the first pressing means 2.

The first pushing means 2 is movable along the first closed path so that it is always out of alignment with the second pushing means 3 which is movable along the second closed path. In this way, it is possible to feed the molding machine one product at a time, as disclosed in detail below.

The advancing device 1 further comprises braking means, not shown, arranged on the advancing surface 16, in particular on the second area 1b. The braking means can include, for example, rollers or blocking elements intended to come into contact with the surface of the product. The braking means increase the frictional force acting on the inertia of the product advancing along the second direction D2 to ensure the correct positioning of the product in the region 1b and during the advancing in an intermittent motion the first pressing force. It is arranged to prevent undesired separation of the third edge Pc from the means 2 or the second pressing means 3.

By providing the braking means, the product can be accurately advanced to the area 1b. As described above, the braking means is used in combination with the guide pin provided at the inlet of the molding machine.

In one embodiment (not shown) of the advancing device on the first carriage 10 and the second carriage 12, the product edge conveyed to the region 1a is grasped and maintained in the closed position while advancing along the second direction D2. It is possible to attach gripping means arranged to release said edge in the region 1b.

8 to 15, the detailed operation of the advancing device 1 is disclosed, and the method according to the invention operates by this method.

The method comprises a first step of supplying a plurality of products P1, P2, P3, each product comprising a first edge Pa and a second edge Pb facing each other, a first edge Pa and a second edge facing each other. It has a third edge Pc and a fourth edge Pd which are arranged orthogonal to Pb. The plurality of products P1, P2, P3 may be temporarily arranged in a loading area located near the advancing device 1. The first product P1 of the plurality of products P1, P2, P3 can be transported to the first region 1a of the support surface 16 of the advancing device 1. Transporting the first product P1 to the first region 1a includes pressing one of the edges by using a transport means, eg a mechanical arm or a pressing device.

In the first area 1a, a second step of bringing the first pressing means 2 movable at least along the first direction D1 into contact with the first product P1 is provided. The first pressing means 2 is formed so as to come into contact with the third edge Pc of the first product P1. That is, the first pressing means 2 is moved to the high position by the driving of the first driving means 8 to which the pressing means 2 is connected, moves at least from the bottom to the top along the first direction D1, and contacts the third edge Pc. Contact.

The first pressing means 2 comprises a support plate 2c to which the first pressing element 2a and the second pressing element 2b are attached.

That is, there is a third step of advancing the first product P1 on the advancing surface 16, and as shown in FIG. 8, the first product P1 is pressed to a high position by the first pressing means 2, and particularly the advancing device 1 From the first area 1a to the second area 1b. The advance is along at least a second direction D2 transverse to the first direction D1. At least the first direction D1 can be inclined with respect to the second direction D2 in the range of 40° to 45°, in particular 42°.

By pressing the third edge Pc of the first product P1 with the first pressing means 2, the first product P1 advances in the second direction D2.

The third step includes advancing the first product P1 and the first pressing means 2 in a continuous motion for a set first time interval and an intermittent motion for a set second time interval.

In particular, the first pressing means 2 can move forward in the first portion L1 continuously during the first time interval and intermittently move in the second portion L2 during the second time interval. The first portion L1 and the second portion L2 extend in parallel to the second direction D2 between the first region 1a and the second region 1b.

In other words, the first product P1 advances in a continuous motion for the first time interval until the fourth edge Pd reaches near the inlet of the molding machine S. The first pressing means 2 moves along the first portion L1 during the first time interval. FIG. 9 shows the moment when the fourth edge Pd reaches the vicinity of the inlet of the molding machine S. From this moment, the first pressing means 2 intermittently moves in the second portion L2.

The fourth step of the method comprises transporting a second product P2 of the plurality of products P1, P2, P3 in the first area 1a. As shown in FIG. 10, when the first region 1a is vacant, that is, when the first product P1 advances on the advancing surface 16 along the second direction D2 by at least the same amount as the first edge Pa. The fourth step can be executed only when

In FIG. 10, since the fourth edge Pd has entered the molding machine S, the first product P1 advances in an intermittent motion. In this fourth step, if the fourth edge Pd has not reached the inlet region of the molding machine S, it can be advanced in a continuous motion.

A fifth step is provided, which is movable at least along the first direction D1 such that the second pressing means 3 abuts the second product P2. The second pressing means 3 can be brought into contact with the third edge Pc of the second product P2. The second pressing means 3 is moved to a high position by driving the second driving means 9 connected to the second pressing means 3, that is, moves from the bottom to the top.

The second pressing means 3 can include a support plate 3c to which the first pressing element 3a and the second pressing element 3b are attached.

A sixth step of advancing the second product P2 is provided by pressing the second product P2 from the first region 1a to the second region 1b to a high position by the second pressing means 3 along the second direction D2. It In particular, the second pressing means 3 presses the third edge Pc of the second product P1.

The second product P2 can also be advanced in the continuous motion of the first time interval and the intermittent motion of the second time interval. The sixth step is performed at least partially at the same time as the above-described third step, that is, the step of advancing the first product P1 along the second direction D2 in the continuous motion or the intermittent motion.

The second pressing means 3 can be advanced with a continuous movement of the third part L3 during the first time interval and with an intermittent movement of the fourth part L4 during the second time interval. The third portion L3 and the fourth portion L4 extend in parallel to the second direction D2 between the first region 1a and the second region 1b.

The first portion L1 is approximately in the same range as the third portion L3, and this also applies to the second portion L2, which is approximately in the same range as the fourth portion L4.

Further, the second product P2 advances in a continuous motion for the first time interval until the fourth edge Pd reaches the vicinity of the inlet of the molding machine S. At this first time interval, the second pressing means 3 moves along the first portion L3. After that, the second product enters the molding machine S, and the second pressing means 3 moves along the second portion L4 by intermittent motion.

Between the fifth step and the sixth step, there is provided a step of advancing the first product P1 in the continuous motion or the intermittent motion along the second direction D2 while the second product P2 remains stationary in the first region 1a. You can

As described below, the second product P2 may remain stationary for a period of time necessary and sufficient to reach the first product P1 while advancing along the second direction D2.

FIG. 11 shows that the first product P1 is pressed by the first pressing means 2 in an intermittent motion and advances in the second direction, and the fourth edge Pd is already inside the molding machine S, The second product P2 is still stationary in the area 1a. The third edge Pc of the first product P1 is separated from the fourth edge Pd of the second product by the first distance X1 along the second direction D2.

In FIG. 12, the first product P1 is pressed by the first pressing means 2 in the intermittent motion and further advances along the second direction D2, but the second product P2 remains stationary. The third edge Pc of the first product P1 is separated from the fourth edge Pd of the second product along the second direction D2 by a second distance X2 that is larger than the first distance X1.

In FIG. 13, the first product P1 is pressed by the intermittent motion and further advances along the second direction D2, and the second product P2 is pressed by the second pushing means 3 by the continuous motion to the second direction D2. Move forward along.

In FIG. 14, the third edge Pc of the first product P1 has reached a part of the second region 1b of the advancing device 1 in the vicinity of the molding machine S, that is, in front of the entrance region of the molding machine S. The second product P2 is pushed by the second pushing means 3 in a continuous motion and continues to move forward along the second direction D2.

In the second area 1b, a seventh step of separating the first pressing means 2 from the first product P1 is provided. The steps are performed by moving the first pressing means 2 along at least the third direction D3 which crosses the second direction D2. In this step, the first pressing means 2 is at a low position, that is, at least along the third direction D3 by driving the first driving means 8 so as to avoid obstructing the subsequent passage of the second product P2. From top to bottom, keep moving forward to the area 1b. At least the third direction D3 can be tilted with respect to the second direction D2 by an angle of between 40° and 45°, in particular 42°. At least the third direction D3 is in the opposite direction parallel to at least the first direction D1.

An eighth step of moving the first pressing means 2 in a continuous motion along a reverse fourth direction D4 parallel to the second direction D2 is provided while the second product P2 continues to advance along the second direction D2. To be done.

In particular, FIG. 15 shows that the fourth edge Pd of the second product P2 has reached the vicinity of the molding machine S and the first product P1 has completely entered the molding machine S. The distance between the third edge Pc of the first product P1 and the fourth edge Pd of the second product P2 is equal to the value X3. The distance X3 can be equal to the distance X1, larger than the distance X1, or smaller than the distance X1 depending on the situation.

The first pressing means 2 moves along the fourth direction D4 to the first region 1a in which the third product P3 of the plurality of products P1, P2, P3 is conveyed. Then, the forward cycle is restarted.

In the aforementioned eighth step, the first pressing means 2 moves along the fourth direction D4 while in the low position, and at the same time, the second pressing means 3 advances to the high position along the second direction D2. .. In this way it is ensured that there are no undesired collisions or bangs between the first pressing means 2 and the second pressing means 3.

At least the first direction D1, the second direction D2, at least the third direction D3 and the fourth direction D4 define at least one closed loop in which the first pressing means 2 and the second pressing means 3 can move. In particular, the aforementioned direction defines a first closed path in which the first pressing means 2 moves and a second closed path in which the second pressing means 3 moves.

Note that there is a variable safety distance (X1, X2, X3) between two consecutive products fed to the molding machine. The safety distance guarantees that the products do not collide with each other during the normal forward movement to the molding machine S, and if the forward movement device 1 (or the molding machine S) is forcibly stopped or malfunctions, the first pressing means 2 or the second pressing means. In order to allow the means 3 to come into contact again, the first pressing means 2 or the second pressing means 3 can be separated from the aforementioned product.

As is apparent from the above description, the device and method according to the present invention make it possible to achieve the above-mentioned objects.

The present invention provides a high degree of optimization and speeding up of the handling and handling operations of molded products.

The operation of releasing and abutting the sheet product is also simplified.

The aforesaid device is distinguished by a very versatile application and is suggested to handle any format of plate/sheet suitable for being formed due to the easy compatibility of the various components. ..

Depending on the size/type of product to be advanced, the device 1 can be configured and dimensioned in any desired manner, with variations or additions of those disclosed in the accompanying drawings.

Claims (17)

a) conveying the first product (P1) of the plurality of products (P1, P2, P3) to the first area (1a) of the advancing device (1),
b) in the first region (1a), contacting the first product (P1) with at least a first pressing means (2) movable along a first direction (D1);
c) The first pressing means (2) moves the first product (P1) along the second direction (D2) from the first area (1a) to the second area (1b) of the advancing device (1). ), and crossing in the at least first direction (D1) with intermittent motion after continuous motion,
d) conveying a second product (P2) of the plurality of products (P1, P2, P3) to the first area (1a),
e) a step of bringing the second pressing means (3) movable along at least the first direction (D1) into contact with the second product (P2),
f) The second pressing means (3) advances the second product (P2) toward the second region (1b) along the second direction (D2) by intermittent motion after continuous motion. And performing at least partially simultaneously with step c),
g) avoiding obstructing the passage of the second product (P2) after moving the first pressing means (2) in at least the third direction (D3) in the second area (1b). Therefore, the step of separating the first pressing means (2) from the first product (P1) and crossing it in the second direction (D2),
h) The first pressing means (2) is continuously moved in parallel with the second direction (D2) in the opposite fourth direction (D4) to move the first pressing means (2) into the first region. Returning to (1a), while continuing to move forward with the second product (P2) along the second direction (D2), the second pressing means (3),
i) In order to bring the first pressing means (2) into contact with the third product (P3) of the plurality of products (P1, P2, P3), the first pressing means (2) is Moving along at least a first direction (D1), during which it is transported to the first area (1a),
Including,
The at least first direction (D1), the second direction (D2), the at least third direction (D3) and the fourth direction (D4) are the first pressing means (2) and the second pressing means (2). 3) A method of advancing a product in the form of a sheet metal, which defines a movable closed path. In at least the first direction (D1), the second direction (D2), the at least third direction (D3) and the fourth direction (D4), a first closed circuit in which the first pressing means (2) is movable. A method according to claim 1, characterized in that the second pressing means (3) defines a movable second closed path. The step c) or the step f) is a step of pressing at least the edges (Pa, Pb, Pc, Pd) of the first product by the first pressing means (2), and the second pressing means (3). Pressing at least the edges (Pa, Pb, Pc, Pd) of the second product (P2) by means of. The step c) includes advancing the first pressing means (2) by continuous motion for the first road (L1) and intermittent motion for the second road (L2). ) And the second path (L2) extend parallel to the second direction (D2) between the first area (1a) and the second area (1b), and the step f) includes the third path. (L3) continuous movement and intermittent movement of the fourth road (L4), the step of advancing the second pressing means (3) is included, and the third road (L3) and the fourth road (L4) are The first path (L1) is substantially equal to the third path (L3), extending between the first area (1a) and the second area (1b) in parallel with the second direction (D2). The method of claim 3, wherein the second path (L2) is of substantially the same length as the fourth path (L4). The step f) includes advancing the first product (P1) in an intermittent motion while the second product (P2) is in the first region (1a) or is advancing in a continuous motion. 5. The method according to any one of claims 1 to 4, comprising. Any of claims 1 to 4, wherein in steps f) and g) at least a safety distance (X1, X2, X3) is maintained between the first product (P1) and the second product (P2). The method according to item 1. The at least first direction (D1) is a reverse direction parallel to the at least third direction (D3), and the at least first direction (D1) and the at least third direction (D3) are the second direction ( Method according to any one of claims 1 to 4, which is inclined at an angle between 40° and 45° with respect to D2). Said step g) comprises moving said first pressing means (2) downwards along said at least third direction (D3), said step b) or i) said at least said first direction (D1). 5.) Method according to any one of claims 1 to 4, comprising moving said first pressing means (2) upwards along said). In order to come into contact with the first product (P1) in the first area (1a), it is movable at least along the first direction (D1) and along the second direction (D2) along the first direction (D1). ), the first product (P1) is advanced from the first area (1a) of the advancing device (1) to the second area (1b), and at least along the third direction (D3). The first product (P1) is moved across the two directions (D2) so as to be separated from the first product (P1), and the first product is moved along the opposite fourth direction (D4) parallel to the second direction (D2). A first pressing means (2) for shifting to a region (1a),
It is connected to the first pressing means (2) and advances the first pressing means (2) in a continuous motion or an intermittent motion along the second direction (D2), and in a continuous motion the fourth direction (D4). First motor means (6) drivable for shifting said first pressing means (2) along
First driving means connected to said first pressing means (2) for moving said first pressing means (2) along said at least first direction (D1) or said at least third direction (D3) (8),
The second product (P2) is movable along at least the first direction (D1) to come into contact with the second product (P2) in the first area (1a), and the second product (P2) is moved in the second direction (D2). Along the direction from the first region (1a) to the second region (1b), and along at least the third direction (D3) to move away from the second product (P2), Second pressing means (3) that shifts toward the first region (1a) along a fourth direction (D4);
Connected to said second pressing means (3) and drivable for advancing said second pressing means (3) along said second direction (D2) in a continuous motion or at least a partial intermittent motion. , Moving the second pressing means (3) along the fourth direction (D4) in a continuous motion while the first motor means (6) advances the first pressing means (2) Two-motor means (7),
Second driving means (3) connected to the second pressing means (3) for moving the second pressing means (3) along the at least first direction (D1) or the at least third direction (D3). 9),
Equipped with
The at least first direction (D1), the second direction (D2), the at least third direction (D3) and the fourth direction (D4) are the first pressing means (2) and the second pressing means (2). Device for advancing a plurality of products (P1, P2, P3) in sheet metal form for carrying out the method according to any one of claims 1 to 8, wherein 3) defines a movable closed path. 1). The at least first direction (D1), the second direction (D2), the at least third direction (D3), and the fourth direction (D4) are the first closed path in which the first pressing means (2) is movable. Advancing device (1) according to claim 9, which defines a second closed path in which the second pressing means (3) is movable. Each of the first pressing means (2) and the second pressing means (3) has a support plate (2c, on which a first pressing element (2a, 3a) and a second pressing element (2b, 3b) are placed. 3c), wherein the first pressing element (2a, 3a) and the second pressing element (2b, 3b) are at least edges (Pa, Pb) of the first product (P1) or the second product (P2). , Pc, Pd), the advancing device (1) according to claim 9 or 10, sized to abut. The first motor means (6) is driven to move the first pressing means (2) forward by the continuous movement of the first road (L1) and the intermittent movement of the second road (L2), and the first road means (6) is driven. (L1) and the second road (L2) extend between the first region (1a) and the second region (1b) in parallel with the second direction (D2), and the second motor means (7) is The third road (L3) is driven to move the second pressing means (3) forward by a continuous motion, and the fourth road (L4) is driven intermittently to drive the second pressing means (3) forward. Extends between the first region (1a) and the second region (1b) in parallel with the second direction (D2), and the first path (L1) substantially corresponds to the third path (L3). Advancing device (1) according to claim 9 or 10, wherein the second path (L2) is substantially equal in length and the second path (L2) is substantially equal in length to the fourth path (L4). Advancing device (1) according to claim 9 or 10, wherein the first motor means (6) is driven in an intermittent motion while the second motor means (7) is stopped or driven in a continuous motion. ). The first motor means (6) and the second motor means (7) are at least between the first product (P1) and the second product (P2) along the second direction (D2). Advance device according to claim 9 or 10, which is driven to advance the first pressing means (2) and the second pressing means (3) so as to maintain a safe distance (X1, X2, X3). (1). The at least first direction (D1) is a reverse direction parallel to the at least third direction (D3), and the at least first direction (D1) and the at least third direction (D3) are the second direction. Advancing device (1) according to claim 9 or 10, inclined at an angle between 40° and 45° with respect to (D2). The first driving means (8) moves the first pressing means (2) downward along the at least third direction (D3), and the first pressing means (2) along the at least first direction (D1). Advancing device (1) according to claim 9 or 10, being driven to move towards the means (2). The second driving means (9) moves the second pressing means (3) downward along the at least third direction (D3), and the second pressing means (3) along the at least first direction (D1). Advance device (1) according to claim 9 or 10, for moving the means (3) upwards.