CN104163568A - Cutting device for welding bead section bar - Google Patents

Abstract

The present invention provides a cutting device for sheet material with beads, capable of keeping the sheet material horizontally when cutting the sheet material with bead portion. The cutting device 100 of the present invention has: an upper air injection unit 50, which injects air at different pressures to three of the widthwise central portion 104, the widthwise right side portion 105, and the widthwise left side portion 106 of the upper surface of the board 101. area; and the surface position measuring section 60 measures the surface height positions of the three areas of the sheet material 101 respectively, and the cutting device is configured to, respectively, according to the surface height positions of the three areas of the sheet material 101 measured by the surface position measuring section 60 The pressure of the air injected from the upper air injection part 50 to the three areas is adjusted.

Description

Cutting device for sheets with beads

Cross References to Related Applications

(none)

technical field

The invention relates to a cutting device for cutting a plate with beads.

Background technique

In a sheet material formed by a general melting method (see Patent Document 1), thick bead portions are formed at both left and right ends during the manufacturing process. This bead portion is unnecessary for the sheet and needs to be cut out during the sheet forming step. Patent Document 2 proposes a device for cutting ear portions located at both left and right ends of a plate material formed by melting. Also, the thickness of the ear portion is the same as the thickness of the central portion. The ear cutting device described in Patent Document 2 is configured to support the ear of a sheet material by ear support rollers and transport the sheet material.

[Prior technical literature]

【Patent Literature】

[Patent Document 1] Japanese National Publication No. 2010-511581

[Patent Document 2] Japanese Patent Application Laid-Open No. 2009-102204

Contents of the invention

【Problem to be solved by the invention】

Both the bead portion and the ear portion are located at the left and right ends of the plate, so if the cutting device described in Patent Document 2 is used, it is considered that the bead portion can also be cut off. However, since the bead portion is thick, the bead portion is supported by the ear support rollers described in Patent Document 2, and the sheet material is distorted, making it impossible to cut at the correct position.

The present invention is made in view of such circumstances, and an object of the present invention is to provide a cutting device for a beaded sheet material capable of maintaining the sheet material horizontally when cutting a sheet material having a beaded portion.

【Means used to solve the problem】

A cutting device for sheet material with beads according to an aspect of the present invention includes: a cutting unit for cutting a sheet material having a bead portion, and cutting the bead portion; The unit has: a pair of conveying devices, which are located at both ends of the width direction of the aforementioned board, contact the bottom of the board and send the board out in the conveying direction; the lower air injection part, located between the pair of conveying devices, sprays air to The lower part of the board supports the board in a non-contact manner; the upper air injection part sprays air at different pressures to three regions of the board, namely, the central part in the width direction, the right part in the width direction and the left part in the width direction; and The surface position measuring part measures the surface height positions of the three regions of the sheet material, and the cutting device for the beaded sheet material is configured to be based on the surface height positions of the three regions of the sheet material measured by the surface position measuring part. , to adjust the pressure of the air sprayed from the upper air injection part to the above three areas respectively.

According to such a structure, even if the board is not strictly horizontal, the board is corrected to become horizontal by the upper air injection portion, so the board can be kept horizontal by the conveyance support unit.

【Invention effect】

As described above, according to the above-mentioned cutting device for a beaded sheet material, when cutting the sheet material having the beaded portion, the sheet material can be held horizontally.

Description of drawings

Fig. 1 is a schematic diagram of a cutting device according to an embodiment.

Fig. 2 is a block diagram of a control system of the above cutting device.

Fig. 3 is a flow chart showing the control content of the cutting device.

Detailed ways

Hereinafter, a cutting device according to an embodiment will be described with reference to the drawings. Hereinafter, the same symbols are assigned to the same or corresponding components through all the drawings, and repeated explanations are omitted.

<overall structure>

First, referring to FIG. 1 , the overall configuration of a cutting device 100 according to the present embodiment will be described. FIG. 1 is a schematic diagram of a cutting device 100 . The plate material 101 loaded into the cutting device 100 is conveyed from the front side of the paper to the inside of the paper. In the following, let the right (right on paper) be "right" toward the direction of travel, "left" toward the direction of travel, and "left" to the left (left on paper), and "width" to the left and right directions toward the direction of travel. illustrate. As shown in FIG. 1 , the sheet material 101 cut by the cutting device 100 is formed by a melting method and has bead portions 102 at both left and right ends. The thickness of the two bead portions 102 is larger than that of the portion 103 between them (hereinafter referred to as “body portion”). The cutting device 100 according to the present embodiment includes a cutting unit 10 and a transport support unit 20 .

The cutting unit 10 is a unit that cuts the sheet material 101 and cuts out the bead portion 102 . The cutting unit 10 has: a pair of cutting knives 11 located near the bead portion 102 of the sheet material 101 ; The cutting blade 11 is a so-called roller blade, and is configured to be movable in the vertical direction. On the other hand, the support table 12 is configured to extend in the conveyance direction (the inward direction in the drawing) and to be movable in the vertical direction. When the plate material 101 is not cut, the cutting blade 11 and the support table 12 are separated from the plate material, but when the plate material 101 is cut, the support table 12 moves upward and contacts the lower surface of the plate material 101 . Moreover, the cutting height 11 moves below and contacts the upper surface of the board|plate 101, and moves along the support table 12 in the conveyance direction. Thereby, the part inside the bead part 102 in the plate material 101 is cut, and the bead part 102 is cut out from the main body part 103 .

The transport support unit 20 is a unit that transports the plate material 101 carried into the cutting device 100 to the cutting position and supports the plate material 101 . The conveyance support unit 20 has a conveyance device 30 , a lower surface air injection unit 40 , an upper surface air injection unit 50 , and a surface position measurement unit 60 . Hereinafter, these components will be described in order.

The conveying device 30 is a part that supports the lower surface of the board 101 and sends it out in the conveying direction. The transport device 30 is disposed on the inner side in the width direction than the two cutting blades 11 in the vicinity of the left and right cutting blades 11 . That is, the conveying device 30 is disposed near the cutting position near the left and right ends of the sheet material 101 . Moreover, the conveying apparatus 30 has the endless belt 31 formed endlessly, and the belt drive motor 32 (refer FIG. 2) which drives the endless belt 31. The endless belt 31 contacts the sheet material 101 sequentially from the position located on the upper side, and rotates in its state, so that the sheet material 101 can be conveyed in the conveying direction.

The lower surface air injection part 40 injects air to the lower surface of the panel 101 and supports the panel 101 without contact. The lower surface air injection part 40 has: the some lower surface injection pipe 41 which is provided between the said pair of conveyance apparatuses 30, and the lower surface air supply part 42 (refer FIG. 2). The lower jetting pipe 41 is a member extending in the conveyance direction and having a rectangular cylindrical cross-section, and a plurality of jetting holes 43 for jetting air are formed on the upper side thereof. The lower air supply unit 42 supplies air boosted to a specific pressure to the lower injection pipe 41 . As a result, the pressurized air is sprayed from the spray hole 43 toward the sheet 101 . Since the lower air injection part 40 has such a structure, it can support the main body part 103 of the panel 101 without contact, and the main body part 103 can suppress bending downward by its own weight.

The upper air injection unit 50 injects air onto the upper surface of the board 101 and applies downward force to the board 101 . The upper air injection part 50 has: a central injection pipe 51, which injects air to the central part 104 in the width direction; a right injection pipe 52, which injects air to the right side part 105 in the width direction; and a left injection pipe 53, which injects air to the left side in the width direction. The side part 106 ; and the central air supply part 54 , the right air supply part 55 and the left air supply part 56 (all refer to FIG. 2 ) can respectively supply air of different pressures to the spray pipes 51-5. Each of the injection pipes 51 to 53 is a cylindrical member extending in the width direction, and a plurality of injection holes 57 for injecting air are formed on the lower surface of the pipe. In FIG. 1 , only one of the rows of the spray pipes 51 to 53 is shown, and this row is arranged in plural in the conveyance direction. Since the upper air injection part 50 is thus configured, a downward force can be applied to the plate 101, and even if the body part 103 expands upward due to the weight of the bead parts 102 located at the left and right ends, the expansion can be suppressed.

The surface position measurement part 60 is a part which measures the surface position (upper surface position) of the board|plate material 101. As shown in FIG. The surface position measuring unit 60 has three distance sensors 61 respectively provided at positions corresponding to the central portion 104 in the width direction, the right portion 105 in the width direction, and the left portion 106 in the width direction. Each distance sensor 61 acquires the distance to the plate 101 and measures the surface height position of the plate 101 based on the result. Also, for example, when three points above the central part 104 in the width direction, the right part 105 in the width direction and the left part 106 in the width direction of the board 101 are at the same height, it can be judged that the board 101 is horizontal.

<Structure of control system>

Next, the configuration of the control system of the cutting device 100 will be described with reference to FIG. 2 . FIG. 2 is a block diagram of a control system of the cutting device 100 . The cutting device 100 includes a control device 70 , and the control device 70 controls the cutting device 100 as a whole. The control device 70 is constituted by CPU, ROM, RAM, and the like. As shown in FIG. 2 , the control device 70 is electrically connected to the surface position measuring unit 60 . The control device 70 acquires information such as the surface position of each region of the plate material 101 based on an input signal from the surface position measuring unit 60 and the like.

Moreover, the control device 70 performs various calculations and the like based on input signals from each device, and controls each part of the cutting device 100 . In this embodiment, the control device 70 is electrically connected to each part of the cutting unit 10, the belt drive motor 32 of the transport device 30, the lower air supply part 42 of the lower air injection part 40, and each air supply part of the upper air injection part 50. 54-56, etc., transmit control signals to these machines, etc., based on the results of calculations, etc., based on the input signals.

<control content>

Next, with reference to FIG. 3 , a description will be given of the control of the sheet material 101 after it is loaded into the cutting device 100 until it is cut. FIG. 3 shows a flow chart of the control content of the cutting device 100 . The control shown in FIG. 3 is performed by the control device 70 .

First, the control device 70 transports the plate material 101 loaded into the cutting device 100 to a position where the cutting operation can be performed (step S1). The conveyance of the sheet material 101 can be performed by transmitting a control signal to the belt drive motor 32 of the conveying device 30 and rotating the endless belt 31 . At this time, the lower air injection unit 40 injects air at a preset pressure to the lower surface of the board 101 to support the board 101 . Also, air at a preset pressure is sprayed onto the upper surface of the board 101 from the upper surface air injection unit 50 . In this way, spraying air onto the plate 101 and exerting force is used to increase the friction force between the endless belt 31 and the plate 101 to prevent the plate 101 from slipping from the endless belt 31 . However, the pressure that the panel 101 receives from the lower air injection unit 40 is controlled so that the respective air supply units 42 , 54 , 55 , and 56 are greater than the pressure received from the upper air injection unit 50 . This is to suppress bending of the sheet material 101 due to its own weight.

Then, the control device 70 acquires the surface position of the plate material 101 (step S2). As described above, the control device 70 can acquire the surface position (top position) of the board 101 based on the input signal from the surface position measurement unit 60 . This step S2 essentially confirms whether the plate 101 is level. Also, as mentioned above, although each air supply unit 42, 54, 55, 56 is controlled so as to suppress the bending of the plate 101 due to its own weight, it is actually caused by the weight of the bead portion 102, and the plate 101 may not be bent. level.

Then, the control device 70 adjusts the air pressure sprayed from the spray pipes 51 to 53 of the upper air spraying unit 50 according to the surface position of the plate 101 to make the plate 101 horizontal (step S3). For example, when the central portion 104 in the width direction of the board 101 is located above the right portion 105 or the left portion 106 in the width direction, the control device 70 transmits a control signal to the central air supply unit 54 to increase the air supply to the central air supply unit 54. The air pressure of the injection pipes 51 becomes higher when the air pressure is injected from the central injection pipe 51 than that of the other injection pipes. Again, for example, on the top of the board 101, the left spray pipe 53, the central spray pipe 51, the left spray pipe 53, the central spray pipe 51, The air pressure of the sequential injection of the right injection pipe 52 becomes high. Through this step S3, for example, the part located higher than the other parts can be displaced downward, and the board 101 can be kept in a horizontal state.

Then, the control device 70 controls the cutting blade 11 and the support table 12 of the cutting unit 10 to cut the sheet material 101 and cut the bead portion 102 from the main body portion 103 (step S4). In this step S4, since the plate material 101 is cut in a horizontal state, the plate material 101 can be cut at an appropriate position. In addition, the cut bead portion 102 is accommodated in a recovery container not shown in the figure located below.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configurations are not limited to these embodiments, and design changes and the like are included in the present invention without departing from the gist of the invention.

【Industrial Utilization】

The cutting device of the present invention is useful in the technical field of cutting devices because it can keep the plate material horizontal when cutting the plate material having the bead portion 102 .

Claims (1)

1. a tool bead sheet material shut-off device, possesses:

Cutting unit, cuts off and has the sheet material of bead portion, and cut this bead portion; And

Conveyance supporter, conveyance and support aforementioned sheet material, aforementioned conveyance supporter has:

A pair of transport unit, the cross direction both ends that are positioned at aforementioned sheet material are entered, and contact below this sheet material and this sheet material is sent in conveyance direction;

The portion of air spray below, between this pair of transport unit, to below aforementioned sheet material, supports aforementioned sheet material by air spray non-contactly;

The portion of air spray above, is sprayed onto air with different pressures respectively three regions of cross direction middle body, cross direction right side part and cross direction left part above aforementioned sheet material; And

Surface location measurement section, measures respectively the trizonal surface elevation position of aforementioned sheet material;

Aforementioned tool bead sheet material is constituted as according to the aforementioned trizonal surface elevation position with the measured aforementioned sheet material of aforementioned surface location measurement section with shut-off device, and the air spray portion above aforementioned that adjusts is respectively injected into aforementioned trizonal air pressure.