JPS60245501A - Tetrahedral sawing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION In particular, the present invention relates to a four-sided sawing device that can process small logs into square timbers in one operation.

Conventionally, in order to cut corners from small logs such as thinned wood, a milling machine such as the one described in Japanese Utility Model Publication No. 33-4/WaS was used. The wood is placed between a pair of parallel circular saws, and two sides of the log are sawed at the same time, so a small log can be cut in two passes, and one circular saw can be used to saw each side four times. Compared to squared wood, the work efficiency has been doubled and the processing cost has been greatly reduced.However, since squared wood obtained from small logs such as thinned wood is cheap, Even if we try to reduce processing costs by using sawing equipment, profitability is low and sometimes even unprofitable, so in the chestnut wood industry, small logs can be cut into corners at even lower costs to increase profitability. The appearance of this device was strongly desired.

The present invention was made in response to this request, and consists of combining four circular saws to form a rectangular space, passing a small round saw through this space, and sawing the four sides at the same time to cut corners in one go. The purpose of this project is to provide a small and lightweight four-sided grinding device that is capable of

Next, an example of an implementation of a four-sided grinding device according to the present invention will be explained based on the drawings.

1 to 3 of the drawings, 1 is a material feeding table with a table 2 on its upper surface, and on its front side, that is, on the material feeding side, a first circular saw 3 whose two surfaces coincide with the table 2; This circular saw 3
A second circular saw 4 is provided on the upper side in parallel with this, and the distance from the circular saw 3 is adjusted by adjusting means to be described later, and is directly connected to motors 5 and 6 arranged on both sides of the table 2. On the rear side of the first and first circular saws 3.4, third and third circular saws 7.8, which are orthogonal to the table 2, are installed oppositely so that the interval can be adjusted by an adjusting means to be described later. and set each of them to the table 2
Motors 9. It is provided directly connected to the IO, and is used to create a rectangular space that matches the cross-sectional shape of the square material to be obtained, as shown in Figure 3 of the drawing, using the circular saws 3.4 and 7.8 described above. Let's form a.

In addition, the Z-th to first circular saws 3, 4, 7 on this sawing table 1
．． The combinations of 8 are not limited to the above order,
You can change it as you see fit.

] 1 is a motor stand for the motor 6 to which the first circular saw 4 described above is directly connected, and as shown in FIG. and this motor stand [1 is the feed screw supported by the guide 12]
3 are screwed together, and by forward and reverse rotation of the feed screw 13, the second circular saw 6 is raised and lowered together with the motor 6, and the corresponding interval with the first circular saw 3 is adjusted.

14. Sweat is the same as mentioned in 3. The fourth circular saw 7, 8 is mounted on the motor stand 9,1°C, and the corresponding one (horizontal guide) 6, 17 is placed on the table 2 as shown in the third figure of the drawing. The feed i supported by the guides 6 and 17 is movably engaged with the slider stand 9.
After fitting screws 18 and 19, this feed screw 18,
19 by forward and seven reverse rotations to move the saws inward and outward +Cs to adjust the corresponding spacing between the third and first circular saws 7.8.

20 is the front of the sawn lumber table 1, that is, the material feeding station.
One type of material feeding guide provided, one feeding table 2 in the front and back]
, 22 are engaged at a predetermined interval, and the material feeding table 2 at the front thereof is fixed to a pair of chain wheels 2g and 24, which are pivotally supported at both the front and rear ends of the guide 20, and fixed to a chino 25, This chino 25 is rotated forward and backward by a motor 26 so as to move forward and backward, and the rear material feeding table 22 is moved forward and backward by moving the material or the front material feeding table 2 by a traction rod to be described later. It's like that.

Reference numeral 27 denotes a traction rod for pulling the rear material feeding table 22 by the front material feeding table 2; The end is inserted into the receiving plate 28 provided on the rear material feeding table 22, and a stop 29 is attached only to the rear side.
8 to cause the front material feeding table 2 to pull the rear material feeding table 22.

Reference numerals 30 and 30 are means for aligning the material attached to the part of the guide 2o for feeding the weeping material near the scraping table IK, and aligning the base to the support piece 3 as shown by the chain line in Figure 3 of the drawing. The cylinder 32 (opening/closing link 3
When 3 and 33 are operated, the four dogleg-shaped parts open and close to grasp the log material and automatically align the center of the log material with the rectangular space a. Depending on the size, the support piece 3I is raised or lowered by the adjusting means 34 to adjust the height.

Reference numerals 35 and 35 denote material fixing means provided on the above-mentioned material feeding table 21 so as to sandwich the material from above and below, and as shown in Fig. As a formula,
The portion corresponding to the square space is recessed into a dogleg shape, and when the cylinder 37 operates the opening/closing links 38 and 38, the four doglegged parts grip the log material and transfer it to the material feeding table. Fixed at 21.

Reference numeral 39 denotes means for detecting material fixation by the aforementioned material fixing means 35, 35, which is attached to one of the fixing means 35 so as to protrude inwardly from this fixing means 35, as shown in FIG. , when the material is gripped by the fixing means 35 , 35 and is pushed outward by the material and matches the fixing means 35 , the operating section 40 operates the switch 41 to stop the fixing means 35 , 35 from tightening the material. It's like that.

42, 42 is a material fixing means provided on the rear material feeding table 22 so as to sandwich the material from above and below, and as shown in Fig. It is a scissors type, and its corresponding surface is provided with anti-slip means such as serrations, and when the opening/closing links 45, 45 are operated by the cylinder 44,
It is opened and closed to sandwich the log material and fix it to the material feeding table 22.

Reference numeral 46 denotes means for detecting material fixation by the above-mentioned fixing means 42, 42, and as shown in Figure S of the drawing, one of the fixing means 42
When the fixing means 42 , 42 grip the material and are pushed outward by the material and align with the fixing means 42 , the operating portion 47
Then operate the switch 48 to stop the tightening of the material 1 by the dark hand i42.42.

Reference numeral 49 denotes a product extrusion means provided on the front material feeding table 21 in the rectangular space a, and a horizontal support 5Q (C movable back and forth 1) is inserted into the horizontal support 5Q, and a rack is installed at the bottom of the horizontal support 5Q. 51, and a motor 952 IC is mounted on this rack 51.
The bins 53, which are rotated further, are engaged with each other, and the pushing piece 54 at the tip thereof is positioned behind the material fixing means 35, 35, and the material feeding table 2 reaches the forward limit; C. When it stops, it is fed out behind it through the rectangular space a, pushing out the product.

551d The above-described zero adjustment means 3Q, 3(l and the first
．． A safety device installed between the first circular saws 3 and 4, shown in drawing J.
As shown in the CIC, when the cylinder 56 is used to project the first circle W3 in front of the cylinder 56, the tip of the material is received and positioned so that it does not touch the circular saws 3 and 4, and the material is placed in this projecting state. After ensuring that the circular saws 3.4 and 7.8 and the material feeding table 21 are not operated, and finishing positioning and fixing the material H,
When operating the circular saw and feed table, the cylinder 56 is retracted to allow sawing.

Reference numerals 57 and 58 are switches for regulating the forward limit of the material feeding tables 2 and 22, and the switch 57 for the material feeding table 22 on the rear side controls the forward movement limit of the material feeding table 22, as shown in FIG. When it is attached to a part near the sawn timber table IK and is operated at the forward limit of 1,000 degrees to the material feeding table 22, the material feeding table 22 is stopped and the fixing means 42, 42 are opened, and the front material feeding table 2 ] is attached to the reverse-use guide 20 on the front side of the switch 57, and when the material feeding table 2 is operated at its forward limit, the fixing means 35 and 35 are opened, and the material feeding table 2 is opened. 21 is stopped, and the extrusion means 49 is allowed to feed out.

Reference numeral 59 denotes a forward limit regulation switch for the pushing means 49, which is attached to the rear of the horizontal support 50 supporting the pushing means 49. When activated by the operator 60, which is adjustably attached to the pushing means 49, the pushing means 49 and The material feeding table 21 is moved back.

Reference numeral 61 is a switch for regulating the backward limit of the material feeding table 21, and when operated by the material feeding table 21, the material feeding table 21 is stopped.

Reference numeral 62 denotes a multiple batten graph type cable guiding means provided on one side of the front material feeding table 21, the front end of which is fixed at the front end of the material feeding table guide 20, the rear end is stopped at the front material feeding table 2j, and the cable is fed. The length is expanded and contracted as the timber table 21 moves forward and backward, and a cable 64 hung on an upper hanging hook 63 with slack is guided.

65, 65 is the above-mentioned 3rd. A pair of green phase carrying-out conveyors provided outside the first circular saw 7.8 receive and carry out the left and right green phases sawn off by the circular saw 7.8.

Reference numeral 66 denotes a green phase conveyor provided below the sawn material table 1, which carries out the green phase that has been sawn by the first circular saw 3.

Reference numeral 67 denotes a product delivery conveyor provided behind the sawn timber table 1 described above, where products are cut into corners by the first to third circular saws 3, 4 and 7.8 and extruded by the extrusion means 49 described above. and carry out the upper layer.

A wet phase concentrating means such as a 68 hasute and a conveyor receives the left, right and lower wet phases carried out by the wet phase carrying out conveyors 65, 65 and 66 and sends them to a wet phase treatment plant.

69 and 70 are material clamping wheels provided above and below the front side of the first and second circular saws 3.4, which elastically clamp the material from above and below to prevent the material from swinging during sawing. .

7], 72 is the third. The material is pressed against the table 2 by restraining wheels provided before and after the circular saw 7.8 and pressed downward by springs 73 and 74 to stably saw the material.

Reference numerals 75 and 76 denote material introduction portions connected to the open sides of the lower parts of the material fixing means 35, 35 and 42, 42, into which materials are received from a feeding table not shown in the drawings. , material is fed into the fixing means 35 , 35 and 42 , 42 .

The material is placed on the lower part of the material fixing means 35, 35 and 42, 42 provided on the material feeding tables 21, 22 of the apparatus constructed as described above, guided by the introduction parts 74, 75, and the rear end ( The rear end of the material is placed against the safety device 55 fed out by the cylinder 56, and the alignment means 30, 30 is closed by the opening/closing link 33.33 driven by the cylinder 32. is the centering means 3°, held in the dogleg-shaped recessed part 30, vX/~first circular saw 3, 4, 7
, 8, and then when the front material fixing means 35, 35 is closed by the cylinder 37, the front end of the material is also clamped into the dogleg-shaped recess of the fixing means 35, 35. It is then centered in the rectangular space a and clamped by the fixing means 35.35. Once both ends of the material are positioned in this way, when the rear fixing means 4'z, 42 are closed by the cylinder 44, the middle part of the material is sandwiched and fixed by the fixing means 42, 42, so that the centering can be adjusted at this time. When the means 30 and 30 are opened, the safety device 55 is retracted by the cylinder 56, and the chino 25 is rotated by the motor 26, the material feeding table 21 moves forward, and the material is transferred to the first to first parts forming the rectangular space a. Send it towards the circular saw 3, 4, 7, 8.

Therefore, as the material advances, first the seventh and second circular saws 3.4 cut into the upper and lower parts, then the third... The first circular saw 7.8 makes cuts on both the left and right sides and simultaneously saws all four sides to process it into a square lumber.

When the rear fixing means 42 , 42 approach the centering means 30 , 30 during this sawn material, the switch 57 is actuated, causing the cylinder 44 to open the fixing means 42 , 42 and release the material, thereby fixing the rear side. Only the means 35 and 35 feed the material to continue sawing the material, and when the material feeding table 21 reaches its forward limit, the switch 58 is actuated to cause the cylinder 37 to open the fixing means 35 and 35, and the material is removed. Sutoto ((
The binion 53 is driven by the motor 952, and the rack 5
] The extrusion means 49 formed with
and 7.8 to advance to the rear of sawn lumber table 1 through space a formed by 7.8. Therefore, sawing is completed without the need for a pre-picking device, and at this time, the switch 59 is activated to reverse the drive motor 52 of the extrusion hand 849, return the extrusion means 49, and at the same time, the motor 26 reverses the cheno 25. Since the material feeding table 21 is moved backward, the material feeding table 21 returns to the waiting position and the peg 29 of the traction rod 27 pulls back the material feeding table 21 and returns to the waiting position. During this time, the products and the liquid phase are carried out by the respective carrying out and centralized processing means 67 and 68.

Therefore, if you attach the material onto the material feeding table 2], 22 as described above and feed it toward the sawing table 1, the work of sawing all four sides of a small round size and obtaining a square lumber will be done using the pre-cutting device. It is done automatically without using it.

Since the four-sided sawing device according to the present invention is formed as described above, if the material is fixed to the material feeding table by the fixing means and fed to one circular saw forming a rectangular space, the material can be transported by one circular saw. The four edges are collected and processed into the same square material as the rectangular space, which is then sent to the rear, and the processing is completed in about 100 turns, reducing the processing cost to 6 IJ. It is also highly profitable to manufacture low-priced squared timber obtained from Kokyudai, such as thinned wood, and can greatly increase profits if used to cut corners from ordinary timber.

Since the material feeding table is equipped with an extrusion means that is fed out backward through the rectangular space formed by the circular saw, there is no need for the product pre-picking device installed at the rear of the sawn material table in the previous application. Since the grinding device is smaller and lighter, not only can it significantly reduce facility, installation, transportation and other costs, but it can also be installed in about half the space of conventional machines.

All you have to do is feed the material to the material feeding table, so it is easy to work even if you do it manually, and if you use a duct-operated material feeding means, unattended work is possible, which saves labor. Effective for safety.

By aligning the material to the rectangular space formed by the circular saw using the alignment means and fixing it to the material feeding table, products with high yield and quality can be obtained even with automatic sawing.

The four circular saws form a rectangular space, and the material is passed straight through this space by the material feed table, so the dimensions are determined.

A product with high shape accuracy can be obtained.

It has unique effects such as:

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of an implementation of a four-sided grinding device according to the present invention. Figure 2 is the same plan view. Figure 3 is a front view of the sawn lumber stand in the same as above. FIG. 4 is a front view of the front material feeding table in the same as above. Fig. S is a front view of the rear material feeding table in the same as above. FIG. 4 is a side view showing how the traction rod connecting the front and rear material feeding tables is attached. In the figure, 1 is a sawing table, a is a rectangular space formed by one circular saw 3.4.7.8, 2], 22 is a material feeding table, 30
, 30 is an alignment means, 3fi, 35 and 42, 42
49 is a material fixing means; 49 is a product extrusion means; 65;
65 and 66 are liquid phase transport means. Broom 3 Figure 1ρ 1Q

Claims (1)

[Claims] A sawing table equipped with two circular saws so as to form a rectangular space, a material feeding table that feeds material to and returns from the sawing table, and a sawing table near the sawing table. means for aligning the material in the rectangular space, means for fixing the aligned material to the material feeding table, and means for moving the material from the material feeding table through the rectangular space when the material feeding table reaches its forward limit. A four-sided sawing device characterized by being equipped with a means for extruding a product to be delivered forward by a machine, and a means for carrying out a finished sawn material.