JP2850993B2 - Standard length cutting method for long materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sizing long materials, and more particularly to a method for sizing long materials, which is provided as a rear surface equipment of an extrusion press and is suitable for cutting extruded materials to product dimensions. Regarding improvement.

[0002]

2. Description of the Related Art Generally, an extruded material extruded by an extrusion press is cooled as a long material, stretched by a stretcher to prevent deformation of the extruded material, etc., and aligned to remove die marks. After that, they are cut to product dimensions. Conventionally, when cutting to product dimensions, a sawing device has been used. A saw table is used, a plurality of extruded materials are stocked on the saw table, and the ends of the extruded materials are stopped with stoppers. It is configured to hold and to cut all together by a cutting machine installed at a fixed position from the stopper.

[0003]

However, in the conventional fixed-size sawing apparatus, a plurality of extruded materials are cut at a time in order to increase the cutting efficiency. There is a problem that a plurality of pieces cannot be cut at a time, and the cutting processing capacity is greatly reduced.

An object of the present invention is to focus on the above-mentioned conventional problems, and it is not necessary to wait until a long material is stocked.
It is an object of the present invention to provide a fixed-size sawing method capable of continuously cutting a long material to a fixed size very efficiently.

[0005]

In order to achieve the above-mentioned object, a method for sizing a long material according to the present invention is provided. The method comprises the steps of: On both sides along the shape of the conveyor, the length of the long material on the conveyor is clamped and the length of the product is doubled while synchronizing with the long material.
A long cutting material having a pair of bogies reciprocating with each other , and having a cutting size of a product by a movable sawing machine provided on the bogie so as to be able to advance and retreat from a direction crossing the feeding direction of the long material.
Is a double-cut length, and is cut to a double-cut length by a stopper provided at an end of a second table which is provided alongside the first table and conveys in a direction opposite to the feeding direction .
After receiving the leading end of the product, the product is cut to a product cutting dimension by a movable cutting machine provided so as to be able to reciprocate along the second table.

[0006]

According to the above-mentioned construction, while the long extruded material is clamped by the extruded material clamping device, simultaneous cutting is performed while synchronizing with the moving speed of the carry-in conveyor incorporated in the middle of the first table. A movable cutting device is provided on each of a pair of trolleys which reciprocate by a length twice as long as a product cutting dimension along both sides of the trolley. In addition, the first
The extruded material of the double cut length cut by the table is stopped by a stopper provided on the second table, and is moved from the stopper to a position where cutting can be performed from the double size to the product size in the feeding direction. Install a cutting machine. By doing so, the extruded material on the first table is cut into a double size, and at the same time, the extruded material with a double cut length on the second table is cut into a fixed size to obtain a product size. For this reason, in the fixed-size sawing method, the cutting processing time can be shortened while continuously supplying the long extruded material, and the fixed-size product of a small lot can be cut.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a specific example of a fixed-size sawing method according to the present invention.

FIG. 1 is a plan view showing the configuration of a fixed-size cutting device according to an embodiment. As shown in this figure, the fixed-size sawing apparatus is provided with a first table 1 for transporting an extruded material as a long-sized material along the longitudinal direction thereof. This first
The table 1 is a saw table 2, a carry-in conveyor 3, a saw gauge table 4, and a mobile cutting device 5 (5R, 5L).
It is composed of On the saw table 2 and the saw gauge table 4, the extruded material 6 is placed on each roller 7 and transported by rollers. Further, the saw table 2
As shown in FIG. 2, the conveyor 3 with a roller, which is stretched endlessly between the four support shafts 8 (8 a, 8 b, 8 c, 8 d) separated from each other as shown in FIG. The rollers 11 are installed between a pair of left and right endless chains 12, for example, 500 to 600.
It is configured to be rotatable at mm intervals. Note that the endless chain 12 is driven without a power source connected thereto.

On both sides of the carry-in conveyor 3, there are provided a pair of traveling linear guides 14 laid along the carry-in conveyor 3, respectively.
, One truck 15 (15R, 15L) is provided so as to be independently driven. Each pair of linear guides 14 (14R, 14R) serves as a driving source for the cart 15.
L), a ball screw shaft 16 (16R, 16L) as shown in FIG. 3, for example, is directly connected to the drive motor 17 (17R, 17L) of the carriage 15, and the drive motor 17 is rotated in the forward / reverse direction. By rotating in the direction, the carriage 15 can move forward and backward on the linear guide 14. The cart 15
The carriage 15 may be driven by a configuration in which a pinion is attached to the drive motor 17 and a rack is provided between the linear guides 14. On the carriage 15, a mobile cutting device 5 (5R, 5L) and a saw dust collector 20 (2
0R, 20L).

Here, the movable cutting devices 5R, 5L and the saw dust collector 20 provided on the cart 15 (15R, 15L) are provided.
R and 20L are left and right identical, respectively, and only one device 5R, 20R will be described as a representative, and the other device 5R
The description of L and 20L is omitted. The movable cutting device 5R
Is a support plate 2 erected so as to face the trolley 15R.
Mounted on 1R. The movable cutting device 5R includes a round saw tooth 30R, an L-shaped arm 31R, and a drive motor 32 for the round saw tooth.
R, Circular saw blade swing cylinder 33R, belt 34
R, lower cover 35R for preventing sawdust scattering, upper cover 36R for preventing sawdust scattering, pipe 37R for sawdust collection, cylinder 38R for round saw tooth tilting, extruded material clamping device 40R, clamp unit 41R, extruded material clamping cylinder 42R, It comprises a guide rod 43R and an extruded material clamp device support rod 44R.

Next, the mobile saw 5R will be described in detail with reference to FIGS. First, a lower cover 35R for preventing the scattering of sawdust having a U-shaped cross section is disposed on the outer peripheral portion of the round saw tooth 30R, and both are supported by a support shaft 46R. Support shaft 4
A cylindrical bearing 50R for rotatably supporting the 6R is fixed to a side portion of the lower cover 35R for preventing the scattering of sawdust. One end of a pair of L-shaped arms 31R extending coaxially from the cylindrical bearing 50R and the saw dust collecting pipe 37R is fixed, and the other end is disposed at the tip of a bracket 53R provided between the pair of L-shaped arms 31R. Piston rod 38 of the provided circular saw tooth tilting cylinder 38R (second cylinder)
It is provided to be rotatable and movable about Ra and the support shaft 54R. By moving the piston rod 38Ra forward and backward,
The structure is such that the circular saw tooth 30R can be moved from a preparation position before cutting (alternative description in the state of the circular saw tooth 30L in FIG. 4) to a cutting completion position (alternative description in the state of the circular saw tooth 30L in FIG. 5). I have.

Further, between the lower cover 35R for preventing the scattering of sawdust generated when the extruded material 6 is cut by the round saw teeth 30R and the above-mentioned sawdust dust collector 20R, a sawdust collecting device partially using a flexible pipe (not shown) is used. It is connected by the pipe 37R, and the retreat limit position (state of 5R in FIGS. 3 and 4) where the extruded material 6 is not cut by the round saw tooth 30R and the position immediately before the start of cutting (state of 5L in FIGS. 3 and 4). A circular saw-tooth swing cylinder 33R (first cylinder) for advancing and retracting the space is supported by a support rod 48R attached to the side of the support plate 21R.
It is pivotally supported at 0R.

On the other hand, a circular saw tooth swing cylinder 33R
The tip of the piston rod 33Ra has a bracket 51R fixed to the middle of a sawdust collecting pipe 37R and a support shaft 52R.
When the piston rod 33Ra is advanced and retracted, the saw dust collection pipe 37R, the round saw tooth 30R, the drive motor 32R for the round saw tooth, and the lower cover 35R for preventing the scattering of the saw dust are integrated. It is constituted so that it may be tilted.

An extruded material clamping device support rod 44R is rotatably provided on a support shaft 55R above the support plate 21R, and has an extruded material clamping device 40R mounted thereon. A position facing the extruded material 6 carried into the carry-in conveyor 3 (the state of the extruded material clamp device 40L in FIG. 4) and a position not facing the extruded material 6 by rotating the support shaft 55R by 90 degrees ( Extruded material clamping device 40R of FIG.
) Can be turned by a driving device (not shown). By doing so, it is possible to prevent collision between the extruded material clamping devices 40R and 40L when the pair of left and right movable sawing devices 5R and 5L alternately reciprocate along the carry-in conveyor 3. .

The extruded material clamping device 40R comprises a clamp portion 41R, an extruded material clamping cylinder 42R, and guide rods 43Ra, 43Rb. Both sides of the clamp portion 41R are used to reduce the scattering of sawdust when cutting the extruded material 6. An upper cover 36 </ b> R for preventing scattering of sawdust is provided for prevention. When pressurized oil is supplied to and discharged from the extruded material clamping cylinder 42R, the plate 56R moves up and down while being guided by the pair of guide rods 43Ra and 43Rb due to the expansion and contraction of the piston rod 42Ra, and the clamp portion 41R disposed below the plate 56R and the sawdust. Upper cover 36R for scattering prevention
At the same time as the lower end, as shown in FIG. 5, contacts the lower cover 35R for preventing the scattering of sawdust, so that the scattering of the sawdust of the extruded material 6 is prevented, and the roller 41 of the carry-in conveyor 3 is clamped by the clamp portion 41R. It is configured to press and clamp the extruded material 6 placed on the sheet.

The leading end of the extruded material 6 thus conveyed from the saw table 2 is clamped by the clamp portion 41R of the extruded material clamping device 40R at the clamp start position shown in FIG. In a no-load state where the conveyor 3 is not connected to the drive source, the clamp is released after moving forward by a desired length while measuring a moving distance such as a rotary encoder or a panel generator,
It is configured to be able to reciprocate back to the clamp start position again. For this reason, while the extruded material 6 on the carry-in conveyor 3 is clamped by the extruded material clamping device 40R installed on the carriage 15R, the length of the fixed product size is twice as long as the fixed size from the clamp start position to the clamp release position. It is set to be movable over a distance of.

When the extruded material 6 carried on the rollers 11 of the carry-in conveyor 3 is clamped by the extruded material clamping device 40R, the round saw tooth 3 of the movable cutting device 5R is used.
Positioning whether or not the cutting is possible at 0R (that is, when cutting the extruded material 6, it is necessary to determine the advance / retreat position of the round saw tooth 30R between the rollers 11 so that the roller 11 is not cut by the round saw tooth 30R). In order to perform the operation, the position is detected by a photoelectric tube (not shown) arranged in an oblique cross direction with respect to the carry-in conveyor 3, and the position can be adjusted so that the circular saw tooth 30R is located at the central portion between the rollers 11 that are constantly separated. It has a configuration. In order to adjust the position of the extruded material clamping device 40R so that the circular saw tooth 30R can advance and retreat at the central portion between the rollers 11, the signal obtained by the photoelectric tube is transmitted to the drive motor 17R of the carriage 15R. It is possible by doing.

The pair of left and right movable cutting devices 5R and 5L provided along the carry-in conveyor 3 are configured to alternately reciprocate on the linear guide 14R for traveling. The extruded material 6 conveyed in a fixed size is cut only by one of the movable cutting devices 5R on the side of the table 4), and the movable cutting device 5L on the other retreat limit side (the side of the saw table 2) is The extruded material 6 conveyed from the saw table 2 onto the carry-in conveyor 3 is configured to be alternately used as a clamp device 40R for clamping the extruded material 6.

Further, a double-sized extruded material 6A transferred from the first table 1 is placed on the transfer table 18 in parallel with the first table 1, and the feeding direction is opposite to that of the first table 1. An oriented second table 24 is provided. The second table 24 includes a first stopper 9, a second stopper 10, and a movable cutting machine 27 having the same configuration as the above-described movable cutting machine. The transfer table 18 having an endless belt, which is provided so as to extend between the first table 1 and the second table 24, includes the roller 7 provided on the saw gauge table 4 and the second table 24.
A roller 25 on which the double-sized extruded material 6A conveyed above is placed so as to be conveyed freely in the feeding direction or the reverse feeding direction.
, And can be transferred from the saw gauge table 4 to the second table 24 by rotating an endless belt. The transfer tables 19 and 23 described later have the same configuration as the transfer table 18.

At the upstream end of the second table 24, there is arranged a fixed first stopper 9 whose movement is regulated so as to face the tip of the double extruded material 6A which is fed backward. Thereby, the reverse feed end of the double extruded material 6A is received and stopped. Further, similarly to the first stopper 9, the second end of the second table 24 is provided with a second end so as to face the front end surface of the conveyed product 6B.
A stopper 10 is provided to receive and stop the leading end of the product 6B. Therefore, the double extruded material 6 on the second table 24
A at regular intervals along the longitudinal direction of the first stopper 9
And the second stopper 10 are disposed.

A movable cutting machine 27 is provided so that the double extruded material 6A conveyed from the saw gauge table 4 to the second table 24 via the transfer table 18 can be cut to a product cutting dimension. In addition, the double-extrusion material 6A placed on the second table 24 is cut to a desired length by a cutting blade 27a that can advance and retreat in a direction perpendicular to the axial direction. The cutting position of the mobile saw 27 is determined by the cutting dimension L with the first stopper 9 as a base point.
Is arranged to stop the double-sized extruded material 6A.

An elevating and lowering transfer table 22 provided in parallel with the second table 24 so that the product 6B (cutting size L) is placed on the transfer table 19 from the second table 24 and can be transferred in a direction orthogonal to the sending direction. Is installed. The lifting table 22 includes the first table 1 described above.
Similarly to the second table 24, the product 6B is placed on the roller 26 and the product 6B is conveyed by the roller in the feeding direction. A width shifting table 28 is provided on the side of the lifting / lowering transport table 22, and the fixed-size extruded material 6B is transported from the lifting / lowering transport table 22 via a transfer table 23 disposed on the width shifting table 28. A loading truck 29 is installed adjacent to the width approach table 28, and is stored here as a product 6B.

The sawing process by the thus-configured fixed-size sawing apparatus will be described with reference to FIGS. First,
As shown in FIG. 8A, the extruded long extruded materials 6 are transferred to the saw table 2 in the order in which they are transferred to the sawing apparatus.
, The position of the circular saw tooth 30L is first adjusted by a photoelectric tube (not shown).
While the extruded material 6 is clamped by the extruded material clamp device 40L, the driving motor 17L is driven to the distance of the double-sized extruded material 6A, that is, the clamp release position, and the cart 15L is driven.
Is advanced (FIG. 8 (2)). The piston rod 33Ra of the circular saw tooth swing cylinder 33R is kept in an extended state.

Next, the extruded material 6 is released from the clamp and retracted by the extruded material clamping device 40L. Further, the piston rod 42Ra of the cylinder 42R for extruded material clamping is provided.
The extruded material clamping device 40R is lowered by the extension of the extruded material, and the round saw tooth 30R is surrounded by the contact between the lower cover 35R for preventing the scattering of the sawdust and the upper cover 36R for preventing the scattering of the sawdust, and the extruded material 6 is clamped by the clamp portion 41R. While being conveyed synchronously with the long extruded material 6 below, the extruded material 6 is cut and separated by the subsequent retraction of the piston rod 38Ra of the circular saw tooth tilting cylinder 38R, and the extruded material 6 is twice as long as the product size. 6A (FIG. 8 (3)).

Next, as shown in FIG. 8 (4), the transfer table 18 is slightly raised to transfer the double-sized extruded material 6A to the adjacent second table 24, and at the same time, the second table 2
4 is driven in the reverse feed direction to feed the double extruded material 6A in the reverse direction (FIG. 8D). As a result, the double extruded material 6A is stopped by the first stopper 9 on the second table 24, and the cutting process of the double extruded material 6A on the second table 24 is performed by the saw blade 27a of the movable cutting machine 27. is performed, cut separated in the product cut dimension L of the product 6B (6B _1, 6B ₂₎
Becomes On the other hand, synchronous conveyance by the clamp of the extruded material clamping device 40R and cutting by the circular saw tooth 30R of the movable cutting device 5R are performed on the carry-in conveyor 3. Also,
The extruded material clamping device 40L clamps the extruded material 6 at the clamp start position (FIG. 9A).

Further, the product 6B (6B ₁ , 6B ₂ ) is sent on the second table 24 in the same feeding direction as the long extruded material 6 and is stopped by the second stopper 10 (FIG. 9).
(2)). Then, the product 6B (6B _1, 6B ₂₎ which are stopped by the second stopper 10 to the slightly raised while placed on the transfer table 19 by driving the endless belt, lifting the transport table 22 from the second table 24 At the same time, the double-sized extruded material 6A is transferred from the saw gauge table 4 to the second table 24 via the transfer table 18. Further, on the carry-in conveyor 3, the extruded material 6 is synchronously conveyed by the extruded material clamping device 40L and double-size cutting (flying cut) is performed by the round saw tooth 30L (FIG. 9 (3)).

[0027] Then, from the lift table 22 of the product 6B ₁ to the centering table 28 takes place via a transfer table 23 (FIG. 9 (4)), further to the track 29 the loading from the centering table 28 as appropriate product 6B _It is sufficient if the transfer of ₁ is performed and stored.

[0028]

As described above, according to the present invention,
Synchronous with the long material in a state where the long material on the carry-in conveyor is clamped at both sides along the endless carry-in conveyor incorporated in the middle of the first table for sequentially feeding the long material. Twice as long as the product cutting dimensions
A pair of trucks that alternately reciprocate the length of
Product cutting dimensions with a mobile cutting machine that can be moved forward and backward
The length of the long material is set to a double-cut length, and the second material is provided alongside the first table and conveys in a direction opposite to the feeding direction.
Double cutting length with stopper installed at the end of the table
After receiving the leading end of the cut product, the movable cutting machine provided so as to be able to reciprocate along the second table cuts the product to the product cutting dimension, thereby making it possible to cut a long object to be cut to a fixed size. The long material can be cut very efficiently and continuously to a fixed size without stocking much of the material, and the cutting processing capability and production efficiency of a fixed lot product of a small lot can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an entire sawing apparatus according to an embodiment.

FIG. 2 is a front view of the movable cutting device according to the embodiment.

FIG. 3 is a plan view of the movable cutting device according to the embodiment.

FIG. 4 is a front view showing a state before cutting of the extruded material by a movable sawing device.

FIG. 5 is a front view showing a cutting state of the extruded material by the movable sawing device.

FIG. 6 is a partial plan view of the movable sawing device as viewed from VI-VI in FIG. 4;

FIG. 7 is a partial side view of the mobile cutting device as viewed from VII-VII in FIG. 4;

FIG. 8 is an explanatory view showing a part of a working process of the sawing device according to the embodiment.

FIG. 9 is an explanatory view showing a part of a working process of the sawing device according to the embodiment.

[Explanation of symbols]

1 first table 2 saw table 3 input conveyor 4 saw gauge table 5 (5R, 5L) mobile sawing device 6 extrudate 6A enlarged scale extrusions 6B (6B _1, 6B ₂₎ Product 9 first stopper 10 second stopper 14 (14R, 14L) Traveling linear guide 15 (15R, 15L) Truck 17 (17R, 17L) Driving motor 18, 19, 23 Transfer table 20 (20R, 20L) Saw dust collector 22 Elevating table 24 2 table 27 Mobile cutting machine 28 Width adjustment table 29 Loading truck 30 (30R, 30L) Round saw tooth 32 (32R, 32L) Round saw tooth drive motor 33 (33R, 33L) Round saw tooth swing cylinder 35 ( 35R, 35L) Lower cover 36 for preventing scattering of sawdust (36R, 36L) Upper cover 38 for preventing scattering of sawdust 8R, 38L) Circular saw tooth displacement cylinder 40 (40R, 40L) extruded material clamping device 41 (41R, 41L) clamp unit 42 (42R, 42L) extruded material clamping cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-113354 (JP, A) JP-A-60-34211 (JP, A) JP-A-58-171211 (JP, A) JP-A-53-113 54387 (JP, A) JP-A-1-140914 (JP, A) JP-A-2-32339 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23D 25/04 B23D 33 / 10 B23D 45/18-45/24

Claims (1)

(57) [Claims] 1. The apparatus according to claim 1, wherein the long members on the carry-in conveyor are clamped at both sides along an endless carry-in conveyor incorporated in the middle of a first table for sequentially feeding the long materials. Cut product while synchronizing with long material
A pair of trucks that alternately reciprocate a length twice as long as the cutting dimension, and a feeding direction of the long material on the trucks
The length of the product cutting dimension is set to the double cutting length by a movable saw provided so as to be able to advance and retreat from the cross direction with respect to the first direction.
After receiving the leading end of the product cut to the double cut length by the stopper installed at the end of the second table that is provided alongside the table and conveys in the opposite direction to the feeding direction,
A fixed-size sawing method for a long material, wherein a movable sawing machine provided reciprocally along the second table cuts the product into a product cutting dimension.