KR100373983B1 - cutting section face heat joining and bead cutting device for plastic members - Google Patents

Abstract

The present invention relates to, for example, a plastic jointer used to heat-bond the cut surface of the material when fabricating a plastic chassis for a window frame, and clamps the material to form a thermal bond between the materials using a heating plate, the thermal bonding Beads formed on the surface can be removed neatly using a cutter without damaging the surface.

Description

Cutting section face heat joining and bead cutting device for plastic members}

The present invention relates to, for example, a plastic jointer used to heat-bond a cut surface of a material when fabricating a plastic chassis for a window frame, and in particular, a bead formed on the heat-bonding surface at the same time as the thermal bonding between the materials. The present invention relates to a heat-sealed joint and a bead removing device for cutting between plastic materials so that they can be neatly removed.

Generally, the plastic material can be joined by heat fusion. However, the plastic material is accompanied by a work to remove the bead of the joint appearing after the thermal fusion, which is rough, cracked and irregularly projected on the surface of the material.

Traditionally, the removal of these beads has relied on manual operations using file tools. As a result, labor costs increased by hand and the joint quality of the product was determined by skilled workers. Therefore, even inexperienced workers or skilled workers, if the work is dragged incorrectly caused scratches on the surface coated on the product caused the defect of the product.

In particular, the plastic chassis used as the window frame damages the coating layer on the surface, thereby reducing productivity.

On the other hand, in the thermal bonding of a plastic material, the strength of the joint is more important than anything. This is because the strength of the joint must be equal to or at least greater than the strength of the unbonded portion. Therefore, the design of the strength of these thermal joints should also be considered.

Therefore, the present invention is to solve the general problems of the prior art as described above, and to facilitate the easy and clean removal of the beads appearing in the joint after heat-sealing the plastic material to be bonded at a certain angle and at the same time increase the strength of the joint It is to provide a cutting surface heat-sealed bonding and bead removal device between the plastic material.

1 is a front view of a cutting surface heat fusion bonding and bead removal device between plastic materials according to an embodiment of the present invention.

Figure 2 is a perspective view of the heat welding cutting module viewed from the direction A of Figure 1;

Figure 3 is an installation state of the guide plate disposed on the bottom of the thermal fusion cutting module.

Figure 4 is a perspective view of the heat welding cutting module seen in the direction B of Figure 1;

Fig. 5 is a state in which beads generated in a plastic chassis thermal bonding portion are cut by using a cutter of the present apparatus, for example.

Figure 6a is a plane cutting state of the cutter for horizontal operation applied to the present invention.

Figure 6b is a vertical cutting state of the vertical operation cutter applied to the present invention.

7 is a conceptual view of the operation of the device for explaining the operation relationship between the heat welding and cutting according to the present invention.

Figure 8 is a block flow diagram for explaining the operation sequence of heat fusion and cutting according to the present invention.

9 is a perspective view of a plastic window frame chassis fabricated using the apparatus of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: frame

11: Linear guide

100,200: Heat Fusion Cutting Module

110: table

114: guide block

120: guard plate

130: fixed frame

132A, 132B, 134A, 134B: Plate

135A, 135B, 135C, 135D: Cutter Garder

140: moving frame

141: base

151,152: Horizontal Cutter

170: heating plate

172: moving block

180: vertical cutter

300: wedge device

C1: cylinder for guide plate operation

C2: cylinder for moving frame

C3, C4: Clamp Cylinder

C5, C6: Cylinder for horizontal cutter operation

C7: cylinder for moving the heating plate

C8: Cylinder for fixing the heating plate

C9: Cylinder for vertical cutter operation

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a cutting surface heat fusion bonding and bead removing device between the plastic material according to an embodiment of the present invention, Figure 2 is a perspective view of the heat fusion cutting module seen in the direction A of Figure 1, Figure 3 is a heat fusion cutting module FIG. 4 is a view illustrating an installation state of the guide plate disposed at the bottom of FIG.

1 to 4, reference numeral 10 denotes a frame, and a pair of linear guides 11 and 11 are provided in parallel in the longitudinal direction on the upper surface of the frame 10. As shown in FIG.

The longitudinal direction of the installed linear guides 11 and 11 of the frame 10 is referred to herein as the X-axis direction, and a direction perpendicular to the X-axis direction in a plane perpendicular to the X-axis direction is defined as the Y-axis direction, and the plane of X and Y The direction perpendicular to the coordinates is defined as the Z-axis direction and described.

And in this specification, the base material refers to a material of plastic that can be heat-sealed. And the longitudinal direction of the joints or parallel to the base material is defined as the C-axis.

As illustrated in FIG. 1, the linear guides 11 and 11 are provided with first and second heat fusion cutting modules 100 and 200. The first and second heat fusion cutting module (100,200) is to be applied to the case of the case where two joining places, any one may be installed alone depending on the case.

In the present embodiment, two thermal fusion cutting modules 100 and 200 are installed to perform thermal bonding and cutting at two locations at the same time, and these thermal fusion cutting modules 100 and 200 are respectively allowed by the length of the linear guide 11. It is provided to be slidably movable in one X axis direction.

The heat fusion cutting module (100,200) is the same configuration and operation with each other is different only installed symmetrically on the frame (10). Therefore, below, any one of the heat welding cutting module 100 will be described.

At this time, any one of the heat-sealed cutting module 200 has a wedge device 300 to move and fix the relatively other heat-sealed cutting module 100 is fixed.

Here, the wedge device 300 is understood to be a kind of fixing and releasing device that can clamp or unclamp the linear guides 11 and 11 through the inclination coupling, and is not limited to this fixing method.

Therefore, in the present invention, when a pair of heat fusion cutting modules 100 and 200 are used, cutting is possible after simultaneously heat-sealing two bonding surfaces corresponding to the length of the base material.

5 and 7, the heat fusion cutting module 100 is basically fixed to any one of the base material (B) and to push the other side of the base material (A) side to the cut surface of the fixed base material (B) have. At this time, the heating plate 170 is designed to move by the amount of melting of the base material (A, B) in the state where the heating plate 170 is located between the cut surfaces of the base material (A and B). And when a certain amount of fusion between the two base materials (A, B) is made, the relatively moved base material (A) is returned to its original position and the heating plate 170 is retracted. Then, the retreating base material (A) is pressed again to the heat-sealed portion of the fixed side base material (B) to form a thermal bond of the cut surface, and the horizontal bead (1) and the vertical bead (2) formed around the bonded surface of the joined material Are removed by the horizontal cutting motion of the horizontal cutters 151 and 152 and the vertical cutting motion of the vertical cutter 180, respectively.

The heat fusion cutting module 100 includes a table 110 having a pair of linear blocks 111 slidingly coupled to the pair of linear guides 11 and 11 as shown in FIGS. 2 and 4. Therefore, the table 110 is movable along the linear guides 11 and 11 in the X axis direction.

As shown in FIG. 3, the table 110 is provided with a through hole 110a for allowing vertical rise and fall of the guide plate 120 to be described later.

The guide plate operating cylinder C1 is fixedly installed on the bottom surface of the table 110 as shown in FIG. 3, and the guide plate 120 is connected to the operating rod of the guide plate operating cylinder C1 through a guide block 114. ) Is fixedly connected, and the guide block 114 is slidably coupled to the guide shaft 116 placed on the bottom of the table 100 to be elevated.

Therefore, the guide block 114 can be fixed to the upper surface of the table 110 integrally with the guide plate 120 while being supported by the guide shaft 116.

The guide plate 120 is installed in the tilted state in the C-axis direction along the direction of the base material cutting surface to hold the position and posture of the base material (A, B) to be joined when the guide plate 120 is in an elevated position Do it.

Therefore, in the present invention, the guide plate 120 is raised and the cut surfaces of the base materials A and B are brought into contact with both large areas of the guide plate 120, and then clamping is performed.

On the upper surface of the table 110, a pair of fixed frame 130 and a moving frame 140 are provided, and the fixing frame 130 and the moving frame 140 face the vertical direction of the guide plate 120. Are arranged.

The movable frame 140 is configured to be movable forward and backward by the cylinder C2 for operating the movable frame in the Y axis direction perpendicular to the X axis relative to the fixing frame 130.

That is, the movable frame 140 includes a base 141, and the base 141 is slidably coupled to a pair of linear guides 118 disposed in the Y-axis direction on the upper surface of the table 110. The moving frame operating cylinder C2 is connected to the base 141 in a state of being mounted to the moving frame 140 to linearly move the moving frame 140.

In the fixing frame 130 and the moving frame 140, fixed side chucks 132A and 132B and moving side chucks 134A and 134B for clamping the base materials A and B, respectively, are installed on the upper and lower portions, respectively. It is.

At this time, the holding plate 132B of the lower side of the fixing frame 130 is fixed to the base 131 of the fixing frame 130, and the holding plate 134B of the lower side of the moving frame 140 is the base of the moving frame 140. 141).

In addition, the holding plate 132A of the upper side of the fixing frame 130 is slidably coupled to the pair of linear guides 136 placed on the base 131 of the fixing frame 130 so as to lift and lower the movable frame 140. The upper plate 134A is slidably coupled to the pair of linear guides 146 installed in the base 141 of the moving frame 140 to be elevated.

And the upper side plate 132A, 134A is connected to the operation rod of the clamp cylinder (C3, C4) mounted on the fixing frame 130 and the moving frame 140, respectively. Therefore, according to the operation direction of the operating rods of the clamp cylinders (C3, C4), the swash plate (132A, 134A) is to perform the up / down operation.

The holders 132A, 132B, 134A, and 134B respectively guide beads to be produced from the surface of the base material to be produced during thermal fusion of the base (A, B) joint surfaces, and at the same time, the horizontal cutters 151 and 152 to be described later. Cutter guarders 135A, 135B, 135C, and 135D for guiding the blade portion around them are provided, and the tip faces of the cutter guards are formed at an acute angle. Therefore, the cutter guiders 135A and 135B (135C and 135D) are formed to have a substantially V-shaped guide groove 137 symmetrically formed vertically as shown in FIG. 6A.

Horizontal cutters 151 and 152 for cutting and removing the horizontal beads 1 formed on the thermal bonding surfaces of the base materials A and B are installed on the upper and lower bleed plates 132A and 132B arranged on the fixing frame 130 side. It is.

The horizontal cutters 151 and 152 are connected to the support blocks 153 and 154 so that the cutters linearly move along the leading edges of the cutters 135A and 135B and 135C and 135D, respectively. The guide shafts 157 and 158 of the block supports 155 and 156 fixed to the 132A and 132B side are slidably coupled to the guide shafts 157 and 158, respectively.

The upper side support block 153 is connected to the operating rod of the cutter operation cylinder (C5) is fixed to the upper side plate 132A as shown in Figure 4, the lower side support block 154 is the lower side bite It is connected to the operation rod of the horizontal cutter operation cylinder C6 fixed to the plate 132B.

At this time, the stroke distance of the horizontal cutter operation cylinder (C5, C6) is preferably at least longer than the length of the planar bead formed on the base material (A and B) joining surface to remove the surface beads in one reciprocating operation.

And the blade of the upper side flat cutter 151 is located on the same plane as the bottom surface of the upper side cutter guiders 135A, 135C, and the blade of the lower side flat cutter 152 is the lower side cutter guide 135B, It is located on the same plane as the upper surface of 135D) (refer FIG. 6A).

The base plate 141 of the moving frame 140 is disposed with a heating plate 170 for entering / exiting operation at the joining position of the gap between the fixed side gripping plates 132A and 132B and the moving side gripping plates 134A and 134B. The heating plate 170 is electrically heated under the control of two axes.

The heating plate 170 is supported by the first guide shaft 171 provided in the C-axis direction in a straight line of the base material joining surface, and the heating plate 170 is slidably coupled to the first guide shaft 171. Sliding flow and fixation are possible on the (172) side second guide shaft 173.

The moving block 172 is moved along the first guide shaft 171 by the heating plate moving cylinder C7 fixed to the base 141 side, and the heating plate 170 on the second guide shaft 173. Support block 174 is installed to be movable in the guide shaft 173, the support block 174 is mounted on the rod of the cylinder for fixing the heating plate (C8) fixed to the movable block 172 side It is connected.

The heating plate fixing cylinder (C8) is to block the flow of the pneumatic to fix the shake caused by the movement of the heating plate 170, in this case, by opening the pneumatic flow path of the heating plate fixing cylinder (C8) to support the block 174 The reason for making it freely movable is to melt the same amount at the joint of both base materials.

On the other hand, one side of the fixing frame 130 is mounted with a vertical cutter operating cylinder (C9), as shown in Figures 4 and 5, the moving block 182 is connected to the operating rod of the vertical cutter operating cylinder (C9) The movable block 182 is installed to be slidably moved perpendicularly to the pair of guide shafts 183 installed on the side of the fixing frame 130, and the movable block 182 is perpendicular to the base material joining surface. The vertical cutter 180 for cutting and removing the beads of the site is mounted.

Reference numeral 5 is a control panel of the apparatus.

The work of this embodiment thus constructed is roughly carried out as follows.

First, as shown in FIG. 7A, the guide plates 120 are raised in a state in which the base materials A and B are in a fixed position to closely contact the cut surface of the base material to the guide plate 120.

Next, the clamped base material A is retracted and moved as shown in FIG. 7B, and the heating plate 170 is entered as shown in (c) while the guide plate 120 is lowered.

Then, as shown in Fig. 7 (d), the retracted base material A is pushed onto the fixed side base material B to heat the cut surface, and when the appropriate amount is melted, preheating is performed in a stopped state.

Then, as shown in (e) of FIG. 7, the base material A and the heating plate 170 are sequentially retracted, and as shown in (f), the base material A is moved forward to the base material B side again to obtain a preheated residual amount. Weld and have a time of cooling.

Finally, as shown in FIG. 5, the beads 1 and 2 formed on the joint surfaces of the base materials A and B are sequentially cut and removed by the horizontal cutters 151 and 152 and the vertical cutters 180.

A block flow diagram according to the above operation is shown in FIG. 8.

This is explained in more detail below.

First, the present invention starts from placing the base material (A) in the longitudinal direction on the two heat fusion cutting module (100,200) disposed on the frame 10. At this time, the moving frame 140 is in the retracted position. And the distance of the heat fusion cutting module (100,200) is determined according to the length of the base material (A), wherein one of the heat fusion cutting module 200 is fixed to the linear guide (11, 11) by the wedge device 300 Becomes

Here, the wedge device 300 refers to a device for fixing the circumferential surfaces of the linear guides 11 and 11 installed on the frame 10 in a wedge shape.

Specifically, the plastic base material A is raised on the upper surface of the lower side chuck plate 134B of the moving frame 140. In this state, the actuation rod of the guide plate actuating cylinder C1 is raised so that the guide plate 120 is positioned at the joining surface (or cut surface) of the base material A through the opening 110a of the table 110.

In this state, for example, the operator closely adheres the cut surfaces of the plastic B base material and the plastic C base material (not shown) to the wide surface of the guide plate 120 to manufacture the window frame plastic chassis.

Next, when the clamping command is dropped through the control panel 5, the clamp cylinders (C3, C4) mounted on the fixing frame 130 and the moving frame 140 is operated to lower each cylinder rod, and in conjunction with the upper side chuck plate ( 132A and 134A are lowered to clamp the base materials A, B and C.

When the clamping operation of the base material is completed, the moving frame operating cylinder (C2) is operated to move the moving frame 140. In this case, there is a space for the heating plate 170 to enter between the cutting surface between the base material (A and B) and the base material (A and C).

In this state, the guide plate 120 is operated by the guide plate cylinder C1 in the opposite direction, so that the guide plate 120 is lowered to its original position.

When the completion of the lowering of the guide plate 120 is sensed, the heating plate moving cylinder (C7) is operated to enter between the base plate (A and B) that the heating plate 170 is opened and is located on the bonding surface as shown in (c) of FIG. At this time, the heating plate 170 is free from the guide shaft 173, and the heating plate 170 is also supplied with electricity and heated to a predetermined temperature.

When the heating plate 170 is placed on the joining surface, the moving frame operation cylinder C2 is moved forward to heat the base material cut surface to melt a predetermined amount, and at this time, the amount of melting is sensed by a sensor not shown.

For example, if the base material A has a dimension of 1000 mm, the initial length of the base material A is 1005 mm, and both sides are melted by about 2 mm.

When the amount of melt reaches the set value, the movement of the moving frame 140 is stopped and preheating is continued with the heating plate 170 in that state.

When the preheating operation is completed, the moving frame operation cylinder C2 is operated again, the moving frame 140 is retracted to its original position, and the heating plate moving cylinder C7 is also operated to retreat the heating plate 170.

In this state, when the cylinder C2 for moving frame operation is moved forward again, the A base material moves relative to the B base material, and the heating surfaces facing each other are fused. At this time, the remaining amount of 0.5mm face to face and fusion.

At this time, for example, there is a horizontal and vertical beads (1, 2) raised by heat fusion in a plane perpendicular to the plane as shown in Figure 5, the joint surface between the base material (A and B), double horizontal bead facing cutter cutter 135A And 135C) located in the V-shaped guide grooves 137 and 137 formed between the 135B and 135D.

When the cooling is completed in the atmosphere after fusion between the base materials, the horizontal cutter operation cylinders (C5, C6) reciprocating operation, in conjunction with the horizontal cutter (151, 152) simultaneously cut the horizontal bead (1) raised on the horizontal surface from above and below Serve

Next, when the vertical cutter operation cylinder (C9) is vertically lowered, the vertical cutter 180 cuts the beads (2) formed on the vertical portion of the base material joining surface.

This series of operations are performed simultaneously in the first and second heat welding cutting module (100,200).

Thus, for example, when the cutting surface of the plastic window frame chassis is bonded to each other by heat fusion, if only the direction is changed, the heat bonding and cutting of the beads are completed, and the square window frame plastic chassis is bonded as shown in FIG. 9.

As described above, according to the present invention, the cut surface of the plastic can be easily heat-sealed, and the beads formed on the heat-sealed surface can be easily removed, so that the damage of the coating layer coated on the surface of the plastic material cannot be generated. . In addition, since a series of work is mechanically performed, the work is quick and the productivity is excellent.

Claims (3)

All of them are plastics, and each of the cut surfaces of B and C substrates is heat-sealed at the same time on both cut surfaces of the A base material, and then the planar beads and vertical beads raised on the two joining surfaces are removed. A frame 10; Arranged on both sides through linear guides 11 and 11 along the X axis in the longitudinal direction of the frame 10 to perform heat fusion of each joining surface, cutting of planar beads and vertical beads formed on the joining surfaces The first heat welding cutting module 100 and the second heat welding cutting module 200 having a symmetrically identical structure to each other are provided; One of the heat-sealed cutting module 100 or 200, A table (110) slidably coupled to the linear guides (11, 11) of the frame (10) in an X-axis direction and having an opening (110a) in a direction perpendicular to the joining surface; A guide plate 120 connected to the guide plate operating cylinder C1 fixedly disposed at the bottom of the table 110 to move up and down to the joint surface positions of the A and B base materials through the opening 110a; Moving in the Y-axis direction to make a plane orthogonal motion with the X-axis by the fixed frame 130 fixed to one side on the table 110 and the cylinder C2 for operating the frame connected to the table 110 on the other side thereof A movable frame 140 possibly installed; Each of the fixing frame 130 and the moving frame 140 is disposed to face each other, and at the same time, A by the operating force of the clamp cylinders C3 and C4 mounted on the fixing frame 130 and the moving frame 140, respectively. Fixed side grip plates 132A and 132B and moving side grip plates 134A and 134B for clamping the base material, the B base material and the C base material; Sliding support on the fixed side bleed plate (132A, 132B) and at the same time interlocked with the horizontal cutter operation cylinder (C5, C6) installed on the fixed side bleed plate (132, 134) to remove the beads generated on the horizontal joint surface between the base material Horizontal cutters 151 and 152; The fixed side chuck plate coupled to the support block 160 which slides in parallel with the joint surface in connection with the heating plate moving cylinder C7 fixedly installed on the movable side chuck plates 134A and 134B, and the base material is clamped. A heating plate 170 for entering and exiting the gap between the openings 132A and 132B and the moving side chucks 134A and 134B; Between the plastic material, characterized in that it includes a vertical cutter (180) for removing the beads of the vertical portion of the base material joining surface while operating vertically in conjunction with the vertical cutter operating cylinder (C9) mounted on the fixing frame 130 Cutting edge heat fusion bonding and bead removal device. The method of claim 1, The heating plate 170 is installed so as to be moved and controlled in the Y-axis direction to the support block 160 to allow movement by the amount of heat fusion during the heat welding of the cutting surface and at the same time to hold the first plate fixed cylinder ( C8) connected to the cut surface heat-sealing and bead removing device between the plastic material, characterized in that connected to. The method of claim 1, The blades 132A, 132B and 134A, 134B each of the blades of the horizontal cutters 151, 152 while guiding the beads generated during thermal fusion of the base (A, B) joining surfaces to rise from the surface of the base material. Cutter girder (135A, 135B, 135C, 135D) having a sharp acute end portion is provided so as to guide the site around it, the cut surface heat fusion bonding and bead removing device between the plastic material.