JPH08238601A - Jumping cross-cutting-off device - Google Patents

Abstract

PURPOSE: To simplify the setting of parts to be cut off and, realize the shortening of cutting-off time. CONSTITUTION: A cutting-off device 10 consists of two cutting-off parts 14, which are arranged in the box of a cutting-off part main body 12 is parallel along the conveying direction of board material 16. The cutting-off parts 14 are so constituted as to be liftable through the notched part 22a of the box 22 and can come up to and separate from each other within the set range. Further, above the cutting-off main body 12, a detector 34 is installed. Before the cutting-off and removal of a detective part, a marking is applied in advance to the defective part so as to cut-off and remove the defective part by raising the first cutting-off part 14a locating on the downstream side of conveyance and the second cutting-off part 14b locating on the upstream side of conveyance by detecting the marking with the detector 34 during the conveyance of the board material 16. Further, by changing the parting position between the first and the second cutting-off parts 14a and 14b, the cutting-off and removal corresponding to the length of the defective part can be carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumping cloth type cutting device typified by a jumping cloth cut and saw, and more specifically, a cutting means for cutting and removing defective portions mixed in a member to be cut such as a plate material. The present invention relates to a jumping cloth cutting device capable of improving processing efficiency by arranging a plurality of members along the conveyance direction of a member to be cut.

[0002]

2. Description of the Related Art A long plate-shaped or rod-shaped member to be cut (hereinafter referred to as "cutting member")
A photoelectric jumping cloth cutting device for sequentially cutting a "plate material" into a predetermined length is known. This jumping cloth cutting device cuts and removes the end portion intersecting the conveying direction of the plate material, the node portion mixed in the plate material, and the cracks etc. (hereinafter referred to as "defects") generated during the lumbering process. Then, it is basically composed of a horizontal conveyance section set to have a dimension long enough to mount the plate material to be cut, and a cutting section main body arranged at one end of the conveyance section. Of these, the transport unit is configured as a conveyor in which an endless belt is wound around rollers arranged near both ends in the longitudinal direction, and is driven by a motor connected to the rollers.
Further, inside the cutting section body, a cutting section to which a circular saw is attached is disposed so as to be movable up and down. When the plate material is cut, a marking indicating a defective portion existing on the plate surface of the plate material with chalk is applied. As the chalk, a fluorescent type is used in which the marking location can be clearly identified by irradiation of light. When the detector installed in the cutting section body detects this marking, the circular saw rises from the cutting section body and cuts the point indicated by the marking. By the way, the cutting work of the end portion that intersects with the plate material conveyance direction is called "end cutting" in the field terminology. Some small jumping cross-cut saws have only a table and no conveyor.

[0003]

In the jumping cross-cut saw described above, the circular saw constituting the cutting portion is one.
Only the base is arranged. For this reason, the marking indicating the cut point is provided on the upstream side and the downstream side of the defective portion in the transport direction.
Since it is necessary to perform the marking on the spot, much labor is required for this marking work. Further, when removing the defective portion, it is necessary to cut the downstream position of the defective portion with a circular saw and then convey the entire plate material to the upstream cutting position. That is, in order to cut and remove one defective portion, it is necessary to move up and down one circular saw twice regardless of the length of the defective portion. Therefore, not only when a small number of defective portions are removed, but when defective portions are mixed in a plurality of places, the processing time is required for that amount, and there is a problem that the working efficiency is significantly reduced. In addition, especially if there is a long defective portion, it is necessary to carry out the cutting operation at the downstream cutting position and then carry the upstream cutting position to the rotation path of the circular saw. As a result, it is a factor that lowers work efficiency.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks inherent in the above-mentioned prior art, and has been proposed in order to solve the above-mentioned drawbacks. An object of the present invention is to provide a jumping cloth cutting device that can shorten the time.

[0005]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and preferably achieve an intended purpose, the present invention provides a marking showing a defective portion such as a node portion or a crack which coexists at a required position of a member to be cut. The detecting means arranged on the conveying means of the member to be cut detects, so that the cutting means arranged to move forward and backward in a direction intersecting the conveying direction of the member to be cut is close to the member to be cut, In a jumping cross-cut saw configured to cut and remove the defective portion, the cutting means is
A plurality of groups are arranged in parallel along the transport direction of the member to be cut, and after the detection means detects the marking, the cutting means located on the downstream side in the transport direction and the cutting means located on the upstream side are synchronized with each other. Alternatively, by independently operating the member to be cut close to the member to be cut, the portion indicated by the marking is appropriately cut.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a jumping cloth cutting device according to the present invention will be described in detail below with reference to the accompanying drawings with reference to preferred embodiments. As shown in FIG. 1, the jumping cloth cutting device (hereinafter, simply referred to as “cutting device”) 10 has a cutting part 14 disposed inside a box of a cutting part body 12 along a conveying direction of a plate material 16. Two units are arranged in parallel. That is, the cutting portion 14 is mainly composed of a circular saw 18 that cuts the plate material 16 and an arm 20 to which the circular saw 18 is attached, and one end of the arm 20 has the cutting portion main body 12
It is pivotally attached to a support base 24 arranged at the bottom of the box body 22 forming the. Further, the circular saw 18 is arranged on one side surface of the cylindrical portion 20a formed on the upper end portion of the arm 20 so as to be rotationally driven in a direction intersecting the transport direction of the plate material 16. Further, the circular saw portion 1a of the arm 20 has a circular saw 1 on the other end face thereof.
A small-diameter pulley 26 connected to the support shaft 8 is provided, and a motor 27 is integrally attached to the side surface of the main body of each arm 20. An endless belt 30 is wound around the small-diameter pulley 26 and the large-diameter pulley 28 attached to the rotary shaft of the motor. Therefore, the circular saw 18 is rotationally driven via the large-diameter pulley 28, the endless belt 30, and the small-diameter pulley 26 by driving the motor 27 of the arm 20.

The arm 20 includes an actuator 3
It is configured so that it can be moved up and down by two. That is, the actuator 32, as shown in FIG.
The air cylinder 33 is mounted at a position parallel to the rotational plane of 0, and one end of a piston rod extending from the cylinder 33 so as to move back and forth is pivotally attached to a substantially intermediate portion of the arm 20 and a barrel. The ends are fixed to the bottom of the box 22. This piston rod 35 is a cylinder 33
The circular saw 18 is housed in the box body 22 of the cutting section body 12 in a state where the circular saw 18 is retracted into the barrel. In addition, as the piston rod 35 advances from the barrel, the circular saw 18
A part of the outer peripheral surface portion is projected from a notch portion 22a formed on the upper surface of the box body 22 corresponding to the rotation locus. The detector 34 is installed above the cutting unit body 12 via a support member (not shown). The detector 34 is an image detector represented by, for example, a CCD camera, and can detect a marking 37 provided on a defective portion 36 which is a cut portion, as described later. Further, a cutting plate 38 is mounted on the upper part of the cutting unit body 12 in correspondence with the cutting position, and when the plate member 16 is cut by the circular saw 18, vibration of the plate member 16 can be prevented.

In this embodiment, two cutting portions 14 are arranged along the conveying direction of the plate material 16,
The first cutting unit located on the downstream side of the plate material 16 in the transport direction
(Hereinafter referred to as “first cutting portion”) 14a is a cutting portion main body 12
It is fixed to the bottom surface of the box body 22 in FIG. A second cutting portion (hereinafter referred to as "second cutting portion") 14b located upstream of the plate material 16 in the conveying direction.
Can move toward and away from the first cutting portion 14a. As shown in FIG. 2, the moving means 40 of the second cutting portion 14b includes, as shown in FIG. 2, two sliders 42 arranged in parallel on the bottom surface of the support base 24 along the conveying direction of the plate material 16, and a box arranged along the slider 42. It is composed of two rails 44 arranged in parallel on the bottom surface of the body 22.

A ball screw 46 is rotatably installed in parallel with the rail 44 at an intermediate position, and one end of the ball screw 46 is connected to a drive source such as a motor attached to the box body 22 of the cutting section body 12. . A nut 48 provided at the bottom of the support base 24 is screwed into the ball screw 46.
Therefore, as will be described later, by rotating the motor, the second screw is passed through the ball screw 46 and the nut 48.
The cutting part 14b can move only a required range along the conveyance direction of the plate material 16. The actuator 32 that swings the arm 20 is not limited to the cylinder 33, and a rotary drive source such as a motor may be used. Further, both the first cutting portion 14a and the second cutting portion 14b may be configured to be able to approach and separate from each other.

FIG. 3 shows another embodiment of the cutting device 10. In the cutting device 10, the circular saw 18 is commonly rotated via a motor 27. In this case, the motor 27 is arranged on the side surface of the cutting section body 12 as shown in the drawing, and a small-diameter gear 52 is attached to the end of the rotary shaft thereof. Further, a rotary support shaft 54 that pivotally mounts the arm 20 on the support base 24 is arranged so as to be inserted through both arms 20 in common. A portion of the rotary support shaft 54 protruding from the upstream end of the box body 22 of the cutting portion body 12 by a required length is rotatably inserted into a support plate 55 having a bearing, and one end portion of the rotary support shaft 54 is also supported. To the other end of the small diameter gear 52 of the motor 27.
A large-diameter gear 56 that meshes with is integrally attached. The large-diameter pulley 28 that rotates integrally with the rotary support shaft 54 is disposed on the rotary support shaft 54 located directly below the small-diameter pulley 26 that rotates the circular saw 18. The small-diameter pulley 26 is connected and connected by an endless belt 30. Therefore, the circular saw 18 is driven by the rotation of the motor 27 such that the small-diameter gear 52, the large-diameter gear 56 and the pulleys 2 are driven.
It is configured to rotate by being transmitted via 6, 28.

As shown in the figure, a spline 58 is formed on the rotary spindle 54 in the portion inserted into the second cutting portion 14b, and a large-diameter pulley forming the second cutting portion 14b is formed in this portion. 28 bosses are engaged. Therefore, the large-diameter pulley 28 is connected to the second cutting portion 1 via the moving means 40.
4b is movable in the axial direction integrally with 4b, and the driving force of the motor 27 is transmitted through the rotation support shaft 54. Further, the cutting device 10 shown in the first embodiment
Similarly, the first cutting portion 14a and the second cutting portion 14b may be configured to be close to and separated from each other.

[0012]

The operation of the jumping cloth cutting device according to the embodiment will be described below. When the defective portion 36 of the plate material 16 is cut, the vertical movement pattern of the cutting portion 14 differs depending on the length thereof, but here, a description will be given by taking a node portion that requires frequent removal work as an example. To do. In this cutting device, the distance between the first cutting portion 14a and the second cutting portion 14b in the initial state is, for example, about 2
It is assumed that the distance is set to 5 mm and the distance separated by the moving means 40 is set to 50 mm, for example.

Prior to cutting the plate member 16, the first cutting portion 14
a and the second cutting portion 14b are accommodated in the box body 22 of the cutting portion main body 12 in a tilted state. As shown in FIG. 5, the plate material 16 conveyed to the cutting portion main body 12 is provided with a marking 37 on a portion where the end cutting is performed, and the marking 37 is provided below the detector 34. The position that should be cut and detected when passing is the controller
An input instruction is given to (not shown). And the marking 37
However, as shown in FIG. 6, the circular saw 1 in the first cutting portion 14a is
After being temporarily stopped on the rotation locus of No. 8, only the first cutting portion 14a is lifted by the bias of the actuator 32,
The end cutting process is performed through the sheet metal plate 38. In addition, when performing the end cutting, the second cutting portion 14b may be lifted to perform the cutting. Further, from the time when the marking 37 for performing the edge cutting process is detected to the time when the actual cutting is performed, the marking indicating the front end portion of the defective portion 36 is provided at the position of the plate member 16 shown by the imaginary line in the figure. 37 is detected by the detector 34.

When the end cutting process is completed, the first cutting section 14a is once housed in the box body of the cutting section body 12.
Then, the plate material 16 is conveyed, and after the marking 37 indicating the front end portion of the defective portion 36 reaches the circular saw 18 of the first cutting portion 14a, the conveyance of the plate material 16 is stopped. In addition, defective part 3
In No. 6, the existing range is 25 mm or less (A). As described above, the first state in the initial state
The distance between the cutting portion 14a and the second cutting portion 14b is 2
It is set to 5 mm. Therefore, the first cutting portion 14a and the second cutting portion 14b that rotate the circular saw 18 are
As shown in FIG.
Both ends sandwiching 6 are cut.

Further, as shown in FIG. 4, when the existing range extends from 25 mm to 50 mm (B) like the notch 36 located on the further downstream side of the defect 36, it is applied to the front end thereof. After the detection of the marking 37 by the detector 34, the defect portion 36 is sequentially captured by an image, and the length thereof is instructed to be input into a controller (not shown). Also, until the marking 37 arrives at the cutting position of the cutting portion main body 12, the second signal received from the controller is received.
The moving means 40 of the cutting portion 14b is driven to move the second cutting portion 14b to the position of 50 mm which is the maximum separation width. When the plate member 16 reaches the cutting position of the cutting unit body 12, the first cutting unit 14a and the second cutting unit 1
4b synchronously rises and cuts both ends of the defective portion 36. Further, even in the case of the defective portion 36 whose existence range extends over 50 mm (C), the length thereof is the same as that of the detector 34.
After the length is analyzed by the first cutting portion 14a
The second cutting portion 14b moves up and down to cut the plate material 16. When the existing range is 25 mm or less (D) like the defective portion 36 shown on the most downstream side of the plate material 16, the second cutting portion 14b should be brought close to the first cutting portion 14a. You can

[0016]

As described above, according to the jumping cloth type cutting apparatus represented by the jumping cloth cut and saw according to the present invention, there are provided, for example, two cutting parts constituted by a circular saw or the like in the plate material conveying direction. By disposing them and cutting and removing both end portions of a defective portion such as a knot portion, the processing time can be significantly shortened. Moreover, since the marking indicating the cut point only needs to be provided at one position on the front end portion of the defective portion, it has an excellent advantage that the marking work can be simplified and the burden on the operator can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a cutting section body and a cutting section in a jumping cross-cut saw according to a preferred embodiment of the present invention.

FIG. 2 is a vertical cross-sectional front view showing a cutting portion in the jumping cross cut-and-sew according to the embodiment.

FIG. 3 is a vertical cross-sectional side view showing another embodiment of the jumping cross cut and sewn cloth according to the embodiment.

FIG. 4 is a plan view showing defective portions mixed in a plate material.

FIG. 5 is a side view showing a state in which a detector detects a marking applied to an end portion of a plate material in the jumping cross cut and saw according to the embodiment.

FIG. 6 is a vertical cross-sectional side view of essential parts showing a state in which a plate material is cut in a jumping cross-cut saw according to an embodiment.

FIG. 7 is a vertical cross-sectional side view of essential parts showing another state in which a plate material is cut in the jumping cross-cut saw according to the present invention.

[Explanation of symbols]

 14 Cutting part 16 Plate material 34 Detector 36 Defective part 37 Marking

Claims (5)

[Claims] 1. A marking (37) showing a defective portion (36) such as a node portion or a crack mixed in a required position of a member to be cut (16),
Detecting means (34) arranged on the conveying means of the member to be cut (16)
By the detection by the cutting means (14), the cutting means (14) arranged so as to advance and retreat in the direction intersecting the conveying direction of the member to be cut (16) is close to the member to be cut (16), and the defective portion (36) In a jumping cross-cut saw configured to cut and remove the cutting means (14), a plurality of groups are arranged in parallel along the conveyance direction of the member to be cut (16), and the detection means (34) marks (37 ) Is detected, the cutting means (14) located on the downstream side in the transport direction and the cutting means (14) located on the upstream side are synchronously or independently operated in proximity to the member to be cut (16). By doing so, the jumping cloth cutting device is configured to appropriately cut the portion indicated by the marking (37). 2. The cutting means (14) includes the member to be cut (1).
The two cutting means (14) are arranged in parallel along the conveying direction of (6), one cutting means (14) for the other cutting means (14), or both cutting means (14, 14) for each other. The jumping cloth cutting device according to claim 1, wherein the cutting member (16) is configured so as to be able to approach and separate along the conveyance direction of the cutting member (16). 3. The driving source (27) for driving the cutting blade (18) in the cutting means (14) is arranged individually in each corresponding cutting means (14). Jumping cloth cutting device. 4. A cutting blade (18) in the cutting means (14)
The jumping cross cutting device according to claim 1 or 2, wherein the two are commonly driven by one drive source (27). 5. The jumping cloth cutting device according to claim 1, wherein the detecting means (34) is an image sensor such as a CCD camera.