JP3138846B2 - Welding and cutting equipment for synthetic resin frames - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of synthetic resin shaped members constituting a synthetic resin frame such as a window frame, a fitting, or a picture frame used for construction, which are cut at 45 degrees. And a cutting device that cuts and removes the welded tension generated at the welded portion at a right angle.

[0002]

2. Description of the Related Art When manufacturing synthetic resin frames such as window frames, fittings, picture frames, etc., the ends of synthetic resin profiles are welded at right angles as follows. First, the end portion of the synthetic resin shaped material is cut at 45 degrees, and the cut surfaces are abutted and welded in a molten state by a heating means. When welding is performed in this manner, a welding tension is generated at the welding portion, and it is necessary to remove the welding tension.

[0003] As a device for removing the welding tension generated at the welded portion as described above, for example, a device disclosed in Japanese Patent Publication No. 3-8887 is known. In other words, while rotating the conical rotary blade having a vertical angle of about 76 degrees, the rotary shaft is inclined and moved along the welded portion to scrape off the welding tension.

[0004]

Since the surface of the synthetic resin shaped material is deformed due to irregularities and waveforms due to processing errors and the like, if the shaving is performed by rotation of the rotary blade, the shape material surface may be shaved. The rotary blade is scraped off with a slight distance from the surface of the profile, and the welded tension after cutting slightly protrudes from the surface of the profile. For this reason, in the case of the above-mentioned scraping using the rotary blade, it is necessary for the operator to finish the work by hand after the scraping, and the work of removing the welded tension becomes troublesome.

Accordingly, an object of the present invention is to provide a welding and cutting apparatus for a synthetic resin frame which can solve the above-mentioned problems.

[0006]

Means for Solving the Problems An end 1a of a synthetic resin profile 1 is cut at 45 degrees, and the ends of the synthetic resin frame 1 are welded at right angles. A cutting device, a guide in contact with the surface of the synthetic resin frame a, a sliding body 67 sliding along the guide toward a corner b of the synthetic resin frame a, and a sliding body 67
Then, it swings around an axis orthogonal to the sliding direction of the sliding body 67.
A moving freely rocking body 69 which is supported, in this oscillator 69, before
The bearing is swingably supported around an axis in the sliding direction of the sliding body 67.
The cutter mounting body 72 and the surfaces of two synthetic resin profiles 1 which are mounted on both sides perpendicular to the sliding direction of the cutter mounting body 72 and border on the corner b of the synthetic resin frame a. A pair of rollers 74 and a pointed cutter having a horizontal lower surface attached to the cutter mounting body 72 toward the corner b of the synthetic resin frame a are provided, and the horizontal lower surface of the cutter and the roller 74 have the same height. A welding and tensioning cutting device for a synthetic resin frame.

[0007]

[Operation] The guide is brought into contact with the surface of the synthetic resin frame a, and the sliding member 67 is moved along the guide along the corner b of the synthetic resin frame a.
, The pair of rollers 74 attached to the cutter attachment body 72 roll along the surfaces of the two synthetic resin profiles 1 at the corners b of the synthetic resin frame a. , The horizontal lower surface of the cutter moves along the corner b at the same height as the surface of the synthetic resin profile 1. Thereby, the welded tension at the corner b (welded portion) can be removed by cutting with a cutter. The oscillator 69 is oscillated about an axis perpendicular to the sliding direction relative to the sliding body 67, <br/> rocking cutter mounting member 72 about the axis of the sliding direction with respect to the oscillator 69 At the same time, the pair of rollers 74 is attached to the cutter attachment body 72, and the pair of rollers 74 rolls along the surfaces of the two synthetic resin sections 1 described above. The cutter mounting body 72 swings in the sliding direction and the direction perpendicular to the sliding direction with respect to the sliding body 67 following the deformation of the surface of the shaped material 1 and irregularities in height, and the cutter is similarly displaced. I do. Therefore, even if the surfaces of the two synthetic resin-made materials 1 are deformed, the heights are irregular, etc., they are generated at the welded portions (corner portions) of the synthetic resin-made frame a by the cutter without damaging the surfaces of the synthetic resin-made materials. The welded tension alone can be correctly cut and removed, and the welded tension generated at the welded portion of the synthetic resin frame a can be easily removed.

[0008]

[Embodiment] As shown in FIGS. 1 and 2, an upper cutting unit B is provided at an upper portion of a fuselage A, a lower cutting unit C is provided at a lower portion of the fuselage A, and Is provided by a frame positioning unit D, and a frame moving mechanism E for positioning and moving the frame a to the frame positioning unit D is provided above the body A.

As shown in FIG. 4, the frame a is formed by cutting an end 1a of a synthetic resin profile 1 at 45 degrees and welding the ends at right angles to form a square shape. Reference numeral 1 (hereinafter, simply referred to as a shape member) is a long member having a hollow cross-sectional shape surrounded by an upper surface 2, a one-side vertical surface 3, a lower surface 4, and the other-side vertical surface 5,
The upper surface 2 has a first upper surface 6 which is horizontal and a second upper surface 7 which is oblique, and the one side vertical surface 3 has a step shape by an upper vertical surface 8, a horizontal surface 9 and a lower vertical surface 10, and the other side. The vertical surface 5 has a stepped shape by an upper vertical surface 11, a horizontal surface 12, and a lower vertical surface 13.

[0010] The frame positioning portion D, as shown in FIG. 1 and FIGS. 2 and 3, the front to open the recessed portion A ₁ of the roller 21 and the vertical pair of right and left lateral plates 20 provided above and below the middle of the body A Board 2
2 are attached, and a holding plate 19 that moves up and down by the cylinder 18 is provided on the vertical plate 22.
Are substantially V-shaped in plane with each other at 90 degrees, and the corner b of the frame a contacts the left and right vertical plates 22 as shown in FIG.

As shown in FIGS. 1 and 2, the frame moving mechanism E supports a mounting body 24 along a guide rail 23 provided on the upper front surface of the machine body A by a lateral feed cylinder 25 so as to be movable left and right. Vertical rod 2 fitted to a pair of cylindrical bodies 26 of the body 24
7 and a vertical cylinder 29 is mounted over the horizontal plate 28 and the mounting body 24, and the movable piece 31 is moved back and forth by a forward and backward feed cylinder 32 along a horizontal rod 30 provided on the horizontal plate 28. The roller 33 is attached to the movable piece 31 and freely supported.

Next, the operation of positioning the frame a on the body A will be described. The frame a is transported to the frame positioning unit D along a table (not shown) provided on the front side of the machine A. The transfer of the frame a is performed by, for example, an apparatus disclosed in Japanese Patent Publication No. Hei 2-12692.

When the transverse feed cylinder 25 is extended and contracted,
Is moved along the guide rail 23 to position the roller 33 at the center of the positioning portion D, that is, at the virtual corner of the pair of vertical plates 22.

The upper and lower cylinders 29 are extended to move the horizontal plate 28 downward so that the rollers 33 face the frame a, and the forward and backward feed cylinders 32 are extended and the rollers 33 are moved toward the machine body A to turn the corners of the frame a. Then, the frame a is moved, and the frame a is pressed against the pair of vertical plates 22 to position the frame a to the body A as shown by the imaginary line in FIG.

Thereafter, the frame a is pressed against the horizontal plate 20 by the pressing plate 19 to hold the position thereof, and the roller 33 is moved in the opposite direction to the above to separate from the frame a. As a result, in the frame a, the lower surface 4 of the adjacent synthetic resin shaped material 1 is placed on the pair of horizontal plates 20, and the corner portion 1 b, that is, the welded portion is located between the pair of horizontal plates 20.

Next, details of the upper cutting unit B will be described. As shown in FIGS. 1 and 2, the upper cutting unit B is provided with a first mounting body 4 movably provided by a lateral feed cylinder 40 along a guide rail 23 provided on an upper front surface of the machine body A.
The vertical rod 43 is slidably inserted into a pair of vertical guide cylinders 42 provided on the first mounting body 41 so as to be vertically slidable, and the second mounting body 44 is connected to the pair of vertical rods 43. The second mounting body 44 moves up and down by expanding and contracting the feed cylinder 45. A third mounting member 47 is connected to a pair of horizontal rods 46 slidably provided in the second mounting member 44 in the front-rear direction. The fourth attachment body 4 is attached to the third attachment body 47.
9 are connected, and the first, second, and third
The cutting devices 50, 51 and 52 are respectively attached, and the second cutting device 51 is the cutting device of the present invention.

As shown in FIGS. 5 to 8, the lower surface of the third mounting member 47 is formed with an intermediate recess 53 and both side cutouts 54, and has a pair of downward projections 55.
The upward projection 56 of the fourth mounting body 49 faces the pair of horizontal rods 57 between the upward projection 56 and the pair of downward projections 55, so that the fourth mounting body 49 is The fourth mounting body 49 is held at an intermediate position by a pair of left and right springs 58 and is moved left and right against the spring 58 by an external force. A pressing piece 59 for supporting a spring 58 is bolted to the notch portion 47.

As shown in FIG. 5, a vertical guide 60, a horizontal guide 61 and an oblique guide 62 are mounted on the fourth mounting body 49, and a sliding body 64 that moves up and down by a first cylinder 63 along the vertical guide 60. The first cutter 65 is attached to the
The cutting device 50 is configured, and the first cutter 65 has a vertical front surface 65a having a plane of 90 degrees and an oblique rear surface 65b, and has a pointed shape.

As shown in FIGS. 5 and 6, a rail 66 having a hole 66c is mounted on the lateral guide 61, and the first cutter 65 is inserted into the hole of the rail 66. A sliding body 67 is supported by a second cylinder 68 so as to be slidable back and forth between a pair of opposing guide grooves 66a of the rail 66.

As shown in FIGS. 5, 6 and 9, a swinging member 69 has a first pin 6 perpendicular to the sliding direction.
At 9a, the swinging member 69 is supported so as to be able to swing up and down in the sliding direction. The tip of the swinging body 69 is urged downward by a spring 71, and the swinging body 69 is located closer to the tip than the first pin 69a. The cutter mounting body 72 is supported by a second pin 73 facing the sliding direction so as to be vertically swingable in a direction perpendicular to the sliding direction.
A pair of rollers 74 are mounted on the left and right sides of the cutter mounting body 72, that is, on both sides perpendicular to the sliding direction, at intervals in the sliding direction, and a second roller 74 is mounted on the lower surface of the cutter mounting body 72. The cutter 75 is mounted with bolts 76, whereby the second cutter 75 can freely swing up and down with respect to the sliding body 67 in the sliding direction and the direction perpendicular to the sliding direction, thereby constituting the second cutting device 51. , The second cutter 75
Has a pointed shape having a horizontal lower surface 75a and an oblique upper surface 75b, and the horizontal lower surface 75a is flush with the lower peripheral surface of the roller 74.

As shown in FIG. 5, a sliding member 77 is slidably supported in the oblique guide 62 by a third cylinder 78 in a slanting front-rear direction, and a third cutter 79 is bolted to the sliding member 77 so as to be bolted. A third cutting device 52 is configured, and the third cutter 79 includes an upward V-shaped lower surface 79a and an oblique upper surface 79b.
It has a pointed shape.

The lower end surface 6 of the rail 66 of the lateral guide 61
6b, that is, a pair of left and right positioning pieces 70 are bolted to the lower surface on both sides.
5 degrees, the front surface 70a of the pair of positioning pieces 70
Is made to coincide with the left and right center of the lateral guide 61, that is, the center of the second cutter 75 in the width direction.

Next, a description will be given of the operation of scraping off the welding by the upper cutting unit B. When the frame a is positioned and held on the machine body A as described above, the lateral feed cylinder 40 is extended and the upper cutting unit B is moved to position the second cutting device 51 at a position facing the corner b of the frame a. In this state, the vertical feed cylinder 45 is extended to lower the second mounting body 44 so that the pair of positioning pieces 70 face the frame a, and the front and rear feed cylinder 48 is extended to perform the fourth mounting together with the third mounting body 47. the body 49 rightward in FIG. 1 adjacent the inner surface of the front 70a of the frame a of go to (the rear side of the body a) a pair of positioning pieces 70, i.e. that only One press on the upper longitudinal face 8 of the profile 1.

As a result, the fourth mounting member 49 is connected to the third mounting member 4.
7 moves right and left against the spring 58 and
The attachment body 49 is positioned in the left-right direction and the front-back direction with respect to the frame a, the first cutter 65 is positioned with the corner of the upper vertical surface 8 of the adjacent profile 1, and the second cutter 7 is positioned.
5 is positioned so as to face the corner of the first upper surface 6 of the adjacent profile 1. Up and down feed cylinder 4
5 to extend the lower surface of the lateral guide 61 to the corner b of the frame a.
Press on top to position vertically. Thus, the third cutter 79 is in a posture parallel to the corner of the second upper surface 7 of the adjacent profile 1.

Extending the first cylinder 63, the first cutter 6
5, the welding tension generated at the welding portion of the upper vertical surface 8 is scraped off. At this time, the second cylinder 68 is contracted to
The cutter 75 is moved forward so as not to interfere with the first cutter 65. Shrink the first cylinder 63 to remove the first cutter 6
5, the second cylinder 68 is extended, and the second cutter 75 is moved rightward in FIG.
The welded tension generated at the welded portion of is scraped off.

At this time, since the rollers 74 provided on the cutter mounting member 72 are in contact with the right and left sides of the welded portion of the first upper surface 6 and roll, the first upper surface 6 has irregularities due to processing errors and the like.
If it is deformed into a waveform or the like, the cutter mounting body 72 swings up and down in the sliding direction and the direction orthogonal to the sliding direction according to the deformation, and the second cutter 75 is also displaced following the deformation,
Even if the first upper surface 6 of the profile 1 is deformed, the second cutter 75 does not damage the first upper surface 6, and only the welding tension can be accurately and cleanly removed.

After the welded portion of the welded portion of the first upper surface 6 has been scraped off, the second cylinder 68 is contracted and the second cutter 75 is moved to the position shown in FIG.
Is moved to the left, the third cylinder 78 is extended, and the third cutter 79 is linearly moved obliquely rightward and upward with respect to the horizontal to scrape off the welded tension generated at the welded portion of the upper vertical surface 7.

[0028]

The guide is brought into contact with the surface of the synthetic resin frame a,
By moving the sliding body 67 along the guide toward the corner b of the synthetic resin frame a, the pair of rollers 74 attached to the cutter mounting body 72 is moved to the corner b of the synthetic resin frame a.
Rolling along the surfaces of the two synthetic resin-made materials 1 with the boundary therebetween, the horizontal lower surface of the cutter moves along the corner b at the same height as the surface of the synthetic resin-made materials 1. Thereby, the welded tension at the corner b (welded portion) can be removed by cutting with a cutter. The oscillating body 69 is a sliding body 67
Swings around the axis perpendicular to the sliding direction relative to the cutter attachment body 72 in the axial sliding direction rotating with respect to the oscillator 69
A pair of rollers 74 is attached to the cutter attachment body 72, and the pair of rollers 74 rolls along the surfaces of the two synthetic resin shaped members 1 described above. The cutter mounting body 72 swings in the sliding direction and the direction perpendicular to the sliding direction with respect to the sliding body 67 by following the deformation of the surface of the two synthetic resin shaped materials 1, irregularities in height, and the like.
The cutter is displaced similarly. Therefore, even if the surfaces of the two synthetic resin-made materials 1 are deformed or the heights thereof are irregular, the surface of the synthetic resin-made materials is not damaged and the synthetic resin frame a
Only the welded tension generated at the welded portion (corner portion) can be correctly cut and removed, and the welded tension generated at the welded portion of the synthetic resin frame a can be easily removed.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention.

FIG. 2 is an overall front view showing an embodiment of the present invention.

FIG. 3 is a schematic plan view of a frame positioning unit.

FIG. 4 is a perspective view of a synthetic resin frame.

FIG. 5 is a detailed vertical sectional view of an upper cutting unit.

FIG. 6 is a sectional view taken along line aa of FIG. 5;

FIG. 7 is a left side view of FIG.

FIG. 8 is a sectional view taken along line bb of FIG. 5;

FIG. 9 is a perspective view of the first cutting machine.

[Explanation of symbols]

A: machine body, B: upper cutting unit, C: lower cutting unit, D: frame positioning unit, E: frame moving mechanism, 61: lateral guide, 67: sliding body, 68: second cylinder, 69: rocking body, 70 ... 1st pin, 71 ... spring, 72 ... cutter mounting body, 73 ... 2nd pin, 74 ... roller, 75 ... 2nd cutter, 75a ... horizontal surface.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Satoshi Inoue 91, Kagimachi, Kamiichi-cho, Nakashinagawa-gun, Toyama Prefecture (72) Inventor Yutaka Sunaura 2-21, Okuda Hisashi-cho, Toyama City, Toyama Prefecture (56) References 4-247925 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B26D 1/06 B29C 37/04

Claims (1)

(57) [Claims] 1. An apparatus for cutting an end portion 1a of a synthetic resin profile 1 at 45 degrees and cutting a weld tension generated at a welded portion of a synthetic resin frame a in which the ends are welded and connected at right angles. there are a guide in contact with the surface of the synthetic resin frame a, a sliding body 67 which slides toward the corner portion b of the synthetic resin frame a along the guide, the sliding body 67, the sliding body Perpendicular to the sliding direction of 67
A rocking body 69 supported so as to be able to swing around an axis, and a rotation of the shaft in the sliding direction of the sliding body 67 is attached to the rocking body 69.
A cutter mounting member 72 which is supported so as to be freely swingable, and which is mounted on both sides perpendicular to the sliding direction of the cutter mounting member 72 and is bounded by a corner b of the synthetic resin frame a.
A pair of rollers 74 respectively in contact with the surfaces of the two synthetic resin profiles 1, and a point-shaped cutter having a horizontal lower surface mounted on the cutter mounting body 72 toward a corner b of the synthetic resin frame a. A welding and cutting apparatus for a synthetic resin frame, wherein the horizontal lower surface of the cutter and the roller 74 are at the same height.