JP2003089155A - Thermal fusion-bonding processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal fusion-bonding processing apparatus capable of preventing burr from generating along the space between inclined end surfaces to the utmost at the time of thermal fusion-bonding and not almost requiring deburring work. SOLUTION: The thermal fusion-bonding processing apparatus is an apparatus constituted so that the ends in the axial direction of long thermally fusible mold materials (articles to be processed) are formed as inclined end surfaces inclined at an angle α of inclination with respect to the axial direction, and the inclined end surfaces are abutted to thermally fusion-bond the articles H to be processed at an inner angle 2α. This apparatus includes a pair of grasping means for the articles to be processed for grasping the articles to be processed to guide the inclined end surfaces thereof from a standby position to a thermal fusion-bonding position, a pair of cutter means 21 for cutting the ends HX in the axial direction of the articles to be processed to form the inclined end surfaces, and a heater means for thermally melting the inclined end surfaces. The respective grasping means for the articles to be processed guides the articles to be processed to the standby position and the thermal fusion-bonding position along the axial direction, while keeping the inclined end surfaces of the articles to be processed in a mutually parallelly opposed state and thermally fusion- bonds the inclined end surfaces of the articles to be processed in an abutted state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the processing of a frame-like packing attached between a main body opening such as a sink and a door, and particularly in the axial direction. When manufacturing frame-shaped packing by heat-sealing and joining each corner portion with a long heat-fusible die material, prevent the occurrence of burrs due to heat-welding as much as possible,
The present invention relates to a heat fusion bonding processing apparatus suitable for manufacturing a burr-free frame-shaped packing.

[0002]

2. Description of the Related Art Conventionally, when manufacturing a frame-shaped packing, a heat-sealable mold material (for example, vinyl chloride) that is long in the axial direction is used.
Inclination angle α in the axial direction (In one example, the inclination angle α is, when the angle of the corner portion of the frame-shaped packing to be processed is right angle,
It is performed by forming a slanted end face by cutting the slanted end face at 45 °, which is half of that, and then abutting the slanted end face and performing thermal fusion bonding.

An example of a conventional heat fusion bonding processing apparatus for manufacturing the above-mentioned frame-shaped packing will be described based on the basic principle shown in FIG. 2B and a specific configuration example shown in FIG. In the conventional heat-sealing device, an axial end portion of a heat-sealing die material (hereinafter referred to as a workpiece H) that is long in the axial direction is inclined at an inclination angle α (see FIG. 2B) with respect to the axial direction. In the example shown, it is formed as an inclined end surface Sa having an inclination angle α = 45 °, the inclined end surface Sa is abutted, and the workpiece H is heat fusion bonded at an internal angle 2α. As shown in FIG. 2B, the basic principle is to maintain the inclined end surfaces Sa of the workpiece H parallel to each other,
The workpiece H is moved toward and away from a direction (hereinafter, referred to as Z direction) orthogonal to the inclined end surface Sa, a standby position indicated by a solid line is set at the time of leaving, and a heat fusion position indicated by a virtual line at the time of approaching. Therefore, the inclined end surface S of the work H is
The a is butt-bonded by heat fusion.

FIG. 14 schematically shows a concrete example of the construction of this conventional heat fusion bonding processing apparatus. According to this drawing, the conventional heat fusion bonding processing apparatus grips the work piece H and moves the inclined end surface Sa of the work piece H from the standby position P ₁ to the heat fusion position P _1.
It includes a pair of workpiece holding means 51, 51 for guiding the workpiece ₂ and a heater means 52 for thermally melting the inclined end surface Sa of the workpiece H. Each of the workpiece gripping means 51, 51 has an inclined end surface S of the workpiece H.
While maintaining a parallel to each other, the workpiece H is moved toward and away from the inclined end surface Sa in the Z direction orthogonal to the inclined end surface Sa, and when the workpiece H approaches the inclined end surface Sa, the inclined end surfaces of the workpiece are butt-welded to each other by heat fusion bonding.

Each of the workpiece gripping means 51, 51 is provided with first and second reciprocating drive sources RD1 and RD2 which are synchronously operated in the left and right directions, and the heater means 52 is provided with a third means.
It is equipped with a reciprocating drive source RD3. The first and second
Reciprocal drive source RD1 and RD2 of, specifically, the first and second controlled by the control signal cylinders S ₁
And S _2, and the third reciprocating drive source RD 3 in the heater means 52 is a third cylinder S ₃ controlled by a control signal.

On the other hand, the workpiece gripping means 51, 51
Is composed of mold assemblies 53, 53 for holding a workpiece, and the mold assemblies 53, 53 are divided into an upper mold member 54, a middle mold member 55 and a lower mold member 56, respectively. , The work piece H in a state of being aligned with each other
Workpiece gripping surfaces 57, 58, 59 conforming to the cross-sectional shape of the workpiece H so as to grip the workpiece for a desired length.
And the contact action surfaces 60, 6 that are inclined and formed at an angle α with respect to the axial direction of the workpiece H to be gripped.
It has 0.

Die assembly 5 in each workpiece gripping means
3, 53 are assembled on machine bodies 62, 62 guided by the guide rail means 61, 61. The pair of mold assemblies 53, 53 has the contact surface 6 with respect to the axis Z of the first and second reciprocating drive sources RD1 and RD2.
0 and 60 are orthogonal to each other, and the contact surfaces 60 and 60 are assembled so as to face each other in parallel.

According to the conventional thermal fusion bonding processing apparatus having the above-mentioned structure, the respective workpiece holding means 51, 51
While maintaining the inclined end surfaces Sa of the workpiece H parallel to each other,
Since the workpiece H is made to approach and leave in the Z direction orthogonal to the inclined end surface Sa, and when the workpiece H is approached, the inclined end surface Sa of the workpiece H is abutted and heat-bonded to each other. Inclined end surface Sa of the workpiece H at the fusion bonding position
Therefore, a relatively large amount of burrs is generated along the heat fusion line between the inclined end faces Sa during the heat fusion, and a very complicated deburring work is forced as the next work process. Was there.

[0009]

Therefore, the present invention is
The present invention is intended to solve the above-mentioned problems found in the above-described conventional heat-fusion-bonding processing device, and in particular, burrs that occur along the heat-fusion line between the inclined end faces during heat-fusion are minimized. SUMMARY OF THE INVENTION It is an object of the present invention to provide a thermal fusion bonding processing apparatus that can be effectively prevented and that hardly requires deburring work.

[0010]

In order to achieve the above-mentioned object, the present invention is specifically configured so that an axial end portion of a heat-fusible mold material (workpiece) which is long in the axial direction is A heat fusion bonding apparatus for forming a slanted end face having an inclination angle α with respect to a direction, and abutting the slanted end faces to heat-weld and weld the workpiece at an angle of an internal angle 2α, the workpiece being the workpiece. And a pair of workpiece gripping means for gripping the inclined end surface of the workpiece from the standby position to the heat-sealing position,
A pair of cutter means for cutting an axial end portion of each workpiece gripped by the pair of workpiece gripping means into an inclined end surface having an inclination angle α with respect to the axial direction,
It comprises a heater means for heat melting the inclined end surface of the workpiece, each workpiece gripping means,
The inclined end faces of the workpiece are parallel to each other, and while being kept facing each other, the workpiece is guided along the axial direction to the standby position and the heat fusion position, and at the time of the heat fusion position, the workpiece is The thermal fusion bonding apparatus is configured so that the inclined end faces of the workpieces are butted against each other for thermal fusion bonding.

Further, according to the present invention, each of the workpiece holding means is provided with first and second reciprocating drive sources which are synchronously operated in left and right, and each of the cutter means is provided with third and fourth reciprocating drive sources. The heater means constitutes a thermal fusion bonding processing apparatus including a fifth reciprocating drive source.

Furthermore, according to the present invention, the first and second reciprocating drive sources in each of the workpiece gripping means comprise first and second cylinders controlled by a control signal, and the cutter means in each of the cutter means is provided. The third and fourth reciprocating drive sources are composed of third and fourth cylinders controlled by a control signal, and a fifth of the heater means is provided.
The reciprocating drive source of No. 1 constitutes a thermal fusion bonding processing apparatus including a fifth cylinder controlled by a control signal.

Further, according to the present invention, each of the workpiece gripping means comprises a fixed side mold assembly and a movable side mold assembly,
The fixed side and movable side mold assemblies are divided into an upper mold member, a middle mold member, and a lower mold member, respectively, and the workpiece to hold the workpiece for a desired length in a state of being aligned with each other. A workpiece gripping surface conforming to the cross-sectional shape is provided, one of the cutter means is assembled to the movable upper mold member of the one workpiece gripping means, and the other is the other. The heat-fusion-bonding processing device is assembled to the movable-side lower mold member of the workpiece gripping means.

Further, according to the present invention, the fixed side mold assembly in each of the workpiece gripping means is assembled on the machine body guided by the guide means, and the movable side mold assembly in each of the workpiece gripping means. A solid body is assembled by being biased in an expansion direction with respect to a guide direction of the fixed side mold assembly, and is formed so as to retract by a preset amount when the workpiece gripping means are butted. It also constitutes a heat fusion bonding processing apparatus that is used.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a thermal fusion bonding processing apparatus according to the present invention will be described in detail with reference to specific embodiments shown in the drawings. FIG. 1 shows an example of a frame-shaped packing manufactured by the heat fusion bonding processing apparatus according to the present invention, and FIG. 1A partially shows a bonded state of one corner portion in the frame-shaped packing. FIG. 1B is a schematic perspective view showing a fracture, and FIG. 1B is a schematic cross-sectional view showing a cross section along line 1B-1B in FIG. 1A.

FIG. 2 shows a basic structure for moving and supplying a workpiece to a thermal fusion bonding position in the thermal fusion bonding processing apparatus according to the present invention and a conventional thermal fusion bonding processing apparatus. FIG. 2A is a view for comparing with a basic structure for bringing an object to a heat fusion position, and FIG. 2A shows a basic structure for moving and supplying a workpiece to the heat fusion position in the heat fusion bonding processing apparatus according to the present invention. In the configuration, showing a separated state before joining with a solid line, is a schematic plan view showing a joined state with an imaginary line,
FIG. 2B is a schematic diagram showing a basic configuration for bringing a workpiece to a thermal fusion bonding position in a conventional thermal fusion bonding processing apparatus, showing a separated state before joining with a solid line and a joining state with an imaginary line. FIG.

FIG. 3 shows a pair of left and right workpiece gripping means, which are the main parts, and a pair of left and right cutters, which are assembled to the respective workpiece gripping means, in the thermal fusion bonding processing apparatus according to the present invention. Fig. 3A is a schematic plan view showing a specific configuration example of the means by cutting a part thereof, and Fig. 3B is a schematic cross-sectional view seen from the direction of the arrow Y1 in Fig. 3A. Is. FIG. 4 is a schematic cross-sectional view showing a cross section along the line Y2-Y2 in FIG. 3A.

FIG. 5 shows a concrete example of the structure of the cutter means, FIG. 5A is a schematic plan view of an example of the cutter means, and FIG. 5B is a schematic front view thereof. 5C is a schematic plan view of the same, and FIG. 5D is a schematic right side plan view of a part of which is cut away.

FIG. 6 shows a concrete example of the structure for holding the workpiece, in which each of the upper die member, the middle die member and the lower die member is divided into a fixed side and a movable side by six die members. FIG. 6A is a schematic plan view showing a specific example of the configuration, and FIG. 6A is a schematic view showing a combination relationship between a fixed-side upper die member (shown by a solid line) and a movable-side upper die member (shown by a virtual line). 6B is a schematic plan view showing the coupling relationship between the fixed-side middle die member (shown by the solid line) and the movable-side middle die member (shown by the phantom line), and FIG. 6C shows the fixed-side lower die member (solid line). 6) and a movable-side lower die member (shown by an imaginary line). FIG. 6D is a schematic cross-sectional view taken along line 6D-6D in FIG. 6A. 6E is a cross-sectional view, and FIG. 6E is a schematic cross-sectional view taken along line 6E-6E in FIG. 6B. Is a cross-sectional view, FIG. 6F, FIG. 6
FIG. 6 is a schematic cross-sectional view showing a cross section taken along line 6F-6F in C.

FIGS. 7 to 11 show the operating mode of the thermal fusion bonding processing apparatus according to the present invention step by step. FIG. 7 shows a state before the work in which the respective constituent members are separated from each other. FIG. 8 is a schematic plan view showing a state in which the heater means is advanced by the fifth cylinder and brings the heater means to a working position, and FIG. 9 is a schematic view showing the first cylinder and the first cylinder. 2 is a schematic plan view showing a state in which the workpiece gripping means is moved forward by the second cylinder and the workpiece gripping means is brought into contact with the heater means. FIG. 10 shows the heater means retracted by the fifth cylinder. FIG. 11 is a schematic plan view showing a state in which the workpiece gripping means is retracted by the first cylinder and the second cylinder.
1 is a schematic view showing a state in which the workpiece gripping means is advanced by the first cylinder and the second cylinder, the working surface of the workpiece gripping means is brought into contact, and the end surface of the workpiece is heat-sealed. FIG.

FIG. 12 shows a mode of gripping a workpiece by the workpiece gripping means.
FIG. 12B is a schematic side view showing a locked state in which the workpiece is gripped by the workpiece gripping means, and FIG.
It is a schematic side view which shows the state which canceled a locked state and made it easy to take out the heat-fusion completed product.

FIG. 13 shows an example of a concrete form of the frame-like packing formed by the heat fusion bonding processing apparatus according to the present invention. FIG. 13A shows the frame-like packing having a rectangular shape. FIG. 13B is a schematic plan view showing a specific example of No. 1, FIG. 13B is a schematic plan view showing a second specific example in which the frame-shaped packing has a hexagonal shape, and FIG. 13C is a schematic plan view showing the frame-shaped packing. FIG. 13D is a schematic plan view showing a third specific example having an octagonal shape.
[Fig. 13] is a schematic plan view showing an inclination angle of a joint portion in the first concrete example, and Fig. 13E is a schematic plan view showing an inclination angle of a joint portion in the second concrete example. FIG. 13F is a schematic plan view showing the inclination angle of the joint portion in the third specific example.

The thermal fusion bonding processing apparatus according to the present invention is an apparatus suitable for manufacturing and processing a frame-shaped packing which is interposed and mounted between a main body opening such as a sink and a door. The frame-shaped packing FP processed by the heat-fusion-bonding processing device is a heat-sealing die material (hereinafter, referred to as a workpiece H) that is long in the axial direction, such as vinyl chloride. It is formed by fusion bonding. In the present invention, the axial end of the workpiece H that is elongated in the axial direction is inclined at an inclination angle α (in the example shown in FIGS. 1A and 2A, an inclination angle α = 45 °) with respect to the axial direction. The end surface Sa is formed, the inclined end surface Sa is butted, and the workpiece H is heat fusion-bonded at an internal angle 2α. The basic principle is as shown in FIG. 2A. While maintaining the inclined end surfaces Sa of the workpiece H parallel to each other, the standby position P is set in a direction along the axial direction of the workpiece H (hereinafter, referred to as X direction).
_{From 1} (the position indicated by the solid line) to the heat fusion position P ₂ (the position indicated by the imaginary line), the inclined end surface Sa of the workpiece H is butt-welded in the butt shape at the heat fusion position. .

The workpiece H is a mold material made of a heat-fusible resin material, and has, for example, a cross-sectional shape as shown in FIG. 1B. The workpiece H is formed into a cross-sectional shape that fits, for example, a frame-shaped packing FP attached to a sink or the like.
a, a first flange portion Hb extending downward from one side edge of the base portion Ha, a second flange portion Hc extending downward from the other side edge of the base portion Ha, the base portion Ha
Rising part H extending upward from the other side edge of the
d, a top surface forming portion He and a top surface forming portion He that extend in parallel from the rising portion Hd to the base portion Ha at intervals.
It has a complicated cross-sectional shape having a hanging portion Hf extending downward from the.

The workpiece H has a cross sectional shape shown by a solid line in FIG. 1B as a first structural example, while a cross sectional shape shown by a solid line in FIG. 1B is an imaginary line. A second configuration example is one having a cross-sectional shape including the ridge flange portion Hg shown. The first configuration example and the second example
The example of the configuration of 1 is provided as a pair of male and female as the frame-shaped packing.

Furthermore, according to the apparatus of the present invention, it is possible to process the frame-shaped packing FP in various forms as shown in each of FIGS. FIG. 13A shows a frame-shaped packing having a rectangular shape in plan view. In this case, since the internal angle 2α of the frame-shaped packing FP is 90 °, the inclination angle α of the inclined end surface Sa of the workpiece H is 45 °. . FIG. 13B shows a frame-shaped packing having a hexagonal shape in a plan view. In this case, since the internal angle 2α of the frame-shaped packing FP is 120 °, the inclination angle α of the inclined end surface Sa of the workpiece H is 60 °. is there. FIG. 13C
Is a frame-shaped packing having an octagonal shape in plan view. In this case, since the inner angle 2α of the frame-shaped packing FP is 135 ° = 135 °, the inclination angle α of the inclined end surface Sa of the workpiece H is 67.5.
°.

The thermal fusion bonding processing apparatus according to the present invention will be described below.
Based on FIGS. 3 to 12, a specific configuration example of
The details will be described. Thermal fusion bonding processing apparatus according to the present invention
Grips the workpiece H, and tilts the end surface Sa of the workpiece H.
Standby position P₁ To heat fusion position P ₂ A pair of covers
Workpiece gripping means 1, 1 and the pair of workpiece gripping means
Axial direction of each workpiece H, H being held by 1, 1
Angles of the end portions Hx, Hx with respect to their axial directions
A pair of knives for cutting and finishing the inclined end surface Sa of α
Means 21, 21 and the inclined end surface S of the workpiece H
heater means 2 for melting a by heat
It consists of things. Each of the workpiece gripping means 1, 1
Maintains the inclined end surfaces Sa of the workpiece H parallel to each other.
While moving the workpiece H in the X direction along the axial direction,
Inclined and separated from each other, and the inclined end surface of the workpiece when approaching
Thermal fusion bonding is performed with Sa being abutted.

The respective workpiece holding means 1 and 1 are provided with first and second reciprocating drive sources RD1 and R which are synchronously operated in the left and right directions.
D2, and the pair of cutter means 21, 21
Preferably comprises third and fourth reciprocating drive sources RD3 and RD4, which operate synchronously to the left and right, and the heater means 2 comprises a fifth reciprocating drive source RD5. The first and second reciprocating drive sources RD1 and RD2 are
Specifically, it comprises first and second cylinders S ₁ and S ₂ controlled by a control signal, and the third cylinder
And a fourth reciprocating driving source RD3 and RD4 are made from the third and fourth cylinders S ₃ and S _4, which is controlled by a control signal, a reciprocating drive source RD5 the fifth in the heater unit 2, the control It consists of a fifth cylinder S ₅ controlled by signals.

On the other hand, the workpiece holding means 1, 1 are
It is composed of mold assemblies 3 and 3 for holding a workpiece, and the mold assemblies 3 and 3 have the same shape except that they are symmetrical. Therefore, in the following description, only one of the workpiece gripping means 1 and 1 and the mold assemblies 3 and 3 will be described.

The workpiece gripping means 1 comprises a fixed side mold assembly F and a movable side mold assembly M. The fixed side mold assembly F includes a fixed side upper mold member 4 _F and a fixed side mold member. Medium-sized member 5
_F and a fixed lower mold member 6 _F , and the movable mold assembly M is divided into a movable upper mold member 4 _M , a movable middle mold member 5 _M and a movable lower mold member 6 _M. And a workpiece gripping surface 7 _F , 7 _M , 8 _F , 8 _M , 9 _{F that} conforms to the cross-sectional shape of the workpiece H so as to grip the workpiece for a desired length in a state of being aligned with each other. , 9 _M
In addition, the movable side mold assembly M is provided with contact action surfaces 10 _M , 10 _M that are inclined and formed at an angle α with respect to the axial direction of the workpiece H to be gripped.

The mold assemblies 3, 3 in each of the workpiece gripping means are assembled on the machine bodies 12, 12 guided by the guide rail means 11, 11. The pair of mold assemblies 3 and 3 are arranged along the axis X of the first and second reciprocating drive sources RD1 and RD2 so that the contact action surfaces 10 _M and 10 _M face each other in parallel. Mold assembly 3
Are assembled so as to reciprocate at an inclination angle α.

As shown in FIGS. 3A, 3B and 4, in the workpiece gripping means 1, the fixed side upper mold member 4 _F and the fixed side middle mold member 5 _F in the fixed side mold assembly _F are fixed. The lower side mold member 6 _F is fixedly connected to the stacking slide direction X ₁ and is assembled so as to be movable in the stacking direction Y. Similarly, the movable-side upper mold member 4 _M and the movable-side middle mold member 5 in the movable-side mold assembly M are
_M and the movable lower die member 6 _M are fixedly connected to each other in the stacking slide direction X ₁ and assembled so as to be movable in the stacking direction Y.

In one example, in the fixed side mold assembly F and the movable side mold assembly M, the upper mold member 4 and the middle mold member 5 are
The upper mold member is urged and coupled in the expansion direction with respect to the stacking direction Y ₁ by the bolt means 13 and the spring means 14, and is movable in the stacking direction Y with a distance of the gap G _1. The lower mold member 4 and the lower mold member 6 are supported by the pin means 15.

With the configuration as described in the preceding paragraph, the workpiece gripping means 1 holds the workpiece H (see FIG. 12A) and the workpiece after fusion bonding is completed. It is possible to shift to a state where H is taken out from the mold assembly 3 (see FIG. 12B). The operation can be easily performed by the mold locking means 16 as shown in each drawing of FIG.

On the other hand, the fixed side mold assembly F and the movable side mold assembly M are, as shown in FIG.
7 and 17, is biased connected to the extension direction relative to the sliding direction X ₁ overlapped by the spring means 18, 18, it is movable in respect to the sliding direction X ₁ superimposed with the distance interval of the gap G ₂ There is.

Further, in the heat fusion bonding processing apparatus according to the present invention, one of the pair of cutter means 21, 21 is one of the movable side mold assembly M in the one workpiece gripping means 1. The movable side upper mold member 4 _M is assembled, and the other of them is assembled to the movable side lower mold member 6 _M of the movable side mold assembly M in the other workpiece gripping means 1. .

A concrete configuration example of the cutter means 21 is shown in each of FIGS. In this concrete configuration example, the cutter means 21 includes a machine base block 22 and a third or fourth cylinder (S ₃ or S ₄ ) assembled on the machine base block 22. .
The machine base block 22 includes a mounting plate 23, a support box 24, and a guide plate 25. The output shaft end 2 of the cylinder 6 is provided with a cutter 28.
There is provided a support plate 27 for supporting the. The guide plate 25 and the mounting plate 23 are provided with through holes 29 that allow the support plate 27 to pass therethrough. On the other hand, the mounting plate 23 in the machine base block 22 is provided with mounting holes 30 and 31 so that the mounting plate 23 can be mounted to the mold assembly 3 with bolts 32 and 33.

Further, in the heat fusion bonding processing apparatus according to the present invention, when the contact action surfaces 10 _M , 10 _M of the workpiece gripping means 1, 1 are brought into contact with the die assembly 3, A relief 34 for the cutter 29 in the cutter means 21 is provided. Furthermore, in connection with the structure of the cutter means 21, a blower means 35 for eliminating the axial end portion Hx of the workpiece H cut by the cutter means 21 is combined. In FIG. 5, the cylinder (S ₃ or S ₄ ) is provided with cylinder operating connection means 36, 37.

Next, the operation mode of the thermal fusion bonding processing apparatus according to the present invention will be described step by step with reference to FIGS. 7 to 11. First, according to FIG. 7, each of the workpiece holding means 1 and 1 is at the standby position P ₁ by the _first and _second cylinders S ₁ and S ₂ which are synchronously controlled by the control signal, and the heater is The means 2 is in the standby position P ₁ by means of the fifth cylinder S ₅ which is controlled by the control signal. In the state of the standby position, the workpiece H on each of the workpiece gripping means 1 and 1 has the axial end portion Hx of the workpiece H contacting surface 10 _M of the workpiece gripping means 1. It is set in the state of protruding from.

In this state, first, the third and fourth cylinders S ₃ and S ₄ of the pair of cutter means 21, 21 are operated to cut the axial end portion Hx of the workpiece H. Then, the inclined end surfaces Sa of the workpiece H are formed.

From this state, the fifth cylinder S ₅ is operated to advance the heater means 2 to the heat fusion position P ₂ (see FIG. 8). Next, the first and second cylinders S ₁ and S ₂ are operated to move the respective workpiece gripping means 1, 1 to the heat fusion position P ₂ (see FIG. 9). In this case, the heater means 2 is sandwiched by the contact action surfaces 10 _M and 10 _M of the movable side mold assembly M in each of the workpiece gripping means 1 and 1, and the inclined end surface Sa of the workpiece H is It is heated to a molten state (preparation stage for heat fusion). The temperature for this thermal melting is about 240 ° C to 270 ° C.

After the inclined end surface Sa of the workpiece H is melted by heat, the first cylinder and the second cylinder S are
_The workpiece gripping means 1 and 1 are retracted to the intermediate position P ₃ by ₁ and S ₂ , and the heater means 2 is retracted by the fifth cylinder S ₅ (FIG. 10).
reference). In this case, the movable side mold assembly M is urged by the spring means 18 in the expansion direction.

Thereafter, the first cylinder and the second cylinder
Cylinders S ₁ and S ₂ are operated to advance the workpiece gripping means 1, 1 to the heat-sealing position P ₂ and heat-bond the inclined end surfaces Sa of the workpiece H. In this case, the movable side mold assembly M is retracted against the expansion biasing force of the spring means 18. Therefore, the inclined end surface Sa of the workpiece H is heat-sealed in the movable side mold assembly M.

[0044]

According to the thermal fusion bonding processing apparatus of the present invention having the above-described structure, the pair of cutter means is operated in a state in which the workpiece is gripped by each workpiece gripping means to operate the workpiece. By cutting the axial end portion Hx of the object,
The point that the inclined end surface Sa of the work piece can be accurately formed is that the inclined end surface of the work piece is parallel to each other and is kept facing each other, while the work piece is axially aligned with the standby position. And a point configured so that the inclined end faces of the workpieces are abutted and heat-sealed together at the heat-sealing position, and the workpiece gripping means are fixed side molds. An assembly and a movable side die assembly, and the fixed side and movable side die assemblies are divided into an upper die member, a middle die member and a lower die member, respectively, and a workpiece is aligned in a state of being aligned with each other. The fixed side mold assembly in each of the workpiece gripping means is a guide having a workpiece gripping surface conforming to the cross-sectional shape of the workpiece for gripping over a desired length. On the aircraft guided by means The movable side mold assembly in each of the workpiece gripping means is urged in the expansion direction with respect to the guide direction of the fixed side mold assembly to be assembled. When the means are abutted against each other, the points are surely brought into contact with each other, so that when the heat-bonding is performed between the inclined end surfaces Sa of the workpiece H, the heat-bonding can be performed so that burrs hardly occur. Therefore, the deburring work in the subsequent stage can be omitted as much as possible, and it can be said that it works extremely effectively in these points.

[Brief description of drawings]

FIG. 1 shows an example of a frame-shaped packing manufactured by a heat fusion bonding processing apparatus according to the present invention, and FIG. 1A shows a bonded state of one corner portion in the frame-shaped packing. FIG. 1B is a schematic perspective view showing a partially cutaway view of FIG. 1B.
It is a schematic sectional drawing shown in a section along a B line.

FIG. 2 is a view showing a basic configuration for moving and supplying a workpiece to a thermal fusion bonding position in a thermal fusion bonding processing apparatus according to the present invention and a conventional thermal fusion bonding processing apparatus. FIG. 2A is a view for comparing with a basic structure for bringing a workpiece to a heat fusion position, and FIG. 2A is a view for moving and supplying the workpiece to the heat fusion position in the heat fusion bonding processing apparatus according to the present invention. FIG. 2B is a schematic plan view showing a separated state before joining in a basic configuration by a solid line and a joining state by an imaginary line, and FIG. 2B shows a work piece in a conventional thermal fusion bonding apparatus. FIG. 3 is a schematic plan view showing a separated state before joining in a basic configuration brought to a heat fusion bonding position by a solid line and a joining state by an imaginary line.

FIG. 3 is a view showing a pair of left and right workpiece gripping means, which is a main part, and a pair of left and right workpiece gripping means, which are assembled to the respective workpiece gripping means, in the thermal fusion bonding processing apparatus according to the present invention. FIG. 3A is a schematic plan view showing a specific configuration example of the cutter means by cutting a part thereof, and FIG. 3B is a schematic cross-section viewed from the arrow Y1 direction in FIG. 3A. It is a figure.

FIG. 4 is a schematic cross-sectional view taken along a line Y2-Y2 in FIG. 3A.

FIG. 5 shows a specific configuration example of the cutter means, FIG. 5A is a schematic plan view of an example of the cutter means, and FIG. 5B is a schematic front view thereof. Figure,
FIG. 5C is a schematic plan view of the same, and FIG. 5D is a schematic right side plan view of a part of which is cut away.

FIG. 6 is a specific structural example of the workpiece gripping means, in which each of an upper die member, a middle die member, and a lower die member is divided into a fixed side and a movable side; FIG. 6A is a schematic plan view showing a combination relationship between a fixed-side upper mold member (shown by a solid line) and a movable-side upper mold member (shown by a virtual line). Yes,
FIG. 6B is a schematic plan view showing the coupling relationship between the fixed-side middle mold member (shown by the solid line) and the movable-side middle mold member (shown by the phantom line), and FIG. 6C is the fixed-side lower mold member (shown by the solid line). FIG. 6D is a schematic plan view showing a coupling relationship between the movable lower die member (shown in phantom) and FIG.
FIG. 6 is a schematic cross-sectional view showing a cross section along line 6D,
6E is a schematic sectional view showing a section taken along line 6E-6E in FIG. 6B, and FIG. 6F is a schematic sectional view showing a section taken along line 6F-6F in FIG. 6C. is there.

FIG. 7 to FIG. 11 are diagrams showing an operating mode of the thermal fusion bonding processing apparatus according to the present invention step by step, and FIG. 7 is a state before work in which respective constituent members are separated from each other. It is a schematic plan view showing.

FIG. 8 is a schematic plan view showing a state in which the heater means is advanced by the fifth cylinder and the heater means is brought to the working position.

FIG. 9 is a schematic plan view showing a state in which the workpiece gripping means is advanced by the first cylinder and the second cylinder, and the workpiece gripping means is brought into contact with the heater means. is there.

FIG. 10 is a schematic plan view showing a state where the heater means is retracted by the fifth cylinder, and the workpiece gripping means is retracted by the first cylinder and the second cylinder. .

FIG. 11 is a view showing that the workpiece gripping means is advanced by the first cylinder and the second cylinder, the working surface of the workpiece gripping means is brought into contact, and the end surface of the workpiece is heat-sealed. It is a schematic plan view which shows the state which is doing.

FIG. 12 shows a mode of gripping a workpiece by the workpiece gripping means, and FIG.
FIG. 12B is a schematic side view showing a locked state in which the workpiece is gripped by the workpiece gripping means, and FIG. 12B shows a state in which the locked state is released so that the heat-sealed product can be easily taken out. It is a schematic side view.

FIG. 13 shows a specific example of the form of a frame-like packing formed by the heat fusion bonding processing apparatus according to the present invention. FIG. 13A shows that the frame-like packing has a rectangular shape. FIG. 13B is a schematic plan view showing a first specific example, and FIG. 13B is a schematic plan view showing a second specific example in which the frame-shaped packing has a hexagonal shape;
FIG. 13C is a schematic plan view showing a third specific example in which the frame-shaped packing has an octagonal shape, and FIG. 13D is
FIG. 13E is a schematic plan view showing the inclination angle of the joint portion in the first concrete example, and FIG. 13E is a schematic plan view showing the inclination angle of the joint portion in the second concrete example. [Fig. 8] is a schematic plan view showing an inclination angle of a joint portion in the third specific example.

FIG. 14 is a schematic plan view showing a specific configuration example of a conventional heat fusion bonding processing apparatus.

[Explanation of symbols]

H Work piece Sa Work piece inclined end surface Hx Work piece axial end portion FP Frame-shaped packing P ₁ Standby position P ₂ Heat fusion position P ₃ Intermediate position 1 Workpiece gripping means 2 Heater means RD1 1 reciprocating drive source RD2 2nd reciprocating drive source RD3 3rd reciprocating drive source RD4 4th reciprocating drive source RD5 5th reciprocating drive source S ₁ 1st cylinder S ₂ 2nd cylinder S ₃ 3rd Cylinder S ₄ Fourth cylinder S ₅ Fifth cylinder 3 Mold assembly F Fixed side mold assembly M Movable side mold assembly 4 _F Fixed side upper mold member 5 _F Fixed side middle mold member 6 _F Fixed side lower mold member 4 _M movable side upper mold member 5 _M movable side middle mold member 6 _M movable side lower mold member 7 _F , 7 _M , 8 _F , 8 _M , 9 _F , 9 _M Workpiece gripping surface 10 _M Contact action surface 11 Guide rail Means 12 Machine body 13 Bolt means 14 Spring means 15 Pin means 16 Type locking means 17 Bolt means 18 Pulling means 21 cutter means 29 cutter

Claims (5)

[Claims] 1. An axial end portion of a heat-fusible die material (workpiece) that is long in the axial direction is formed as an inclined end surface having an inclination angle α with respect to the axial direction, and the inclined end surfaces are butted. A thermal fusion bonding apparatus for thermal fusion bonding the workpiece with an internal angle 2α, wherein the workpiece is gripped, and an inclined end surface of the workpiece is moved from a standby position to a thermal fusion position. The pair of workpiece gripping means for guiding and the axial end portions of the workpieces gripped by the pair of workpiece gripping means are cut into inclined end surfaces having an inclination angle α with respect to the axial direction. A pair of cutter means for, and a heater means for heat melting the inclined end surface of the workpiece, each workpiece gripping means, the inclined end surface of the workpiece is parallel to each other. , While keeping them face-to-face, align the work piece in the axial direction. A heat fusion bonding processing apparatus, characterized in that it is guided to a standby position and a heat fusion position, and at the time of the heat fusion position, the inclined end faces of the workpiece are abutted and heat fusion bonded. 2. Each of the workpiece gripping means includes first and second reciprocating drive sources that operate in synchronization with left and right, and each of the cutter means includes third and fourth reciprocating drive sources, and the heater means. Is provided with a fifth reciprocating drive source, and the heat fusion bonding processing apparatus according to claim 1. 3. The first and second reciprocating drive sources in each of the workpiece gripping means comprise first and second cylinders controlled by a control signal, and third and fourth in each of the cutter means. A reciprocating drive source of the third and fourth cylinders controlled by the control signal,
The thermal fusion bonding processing apparatus according to claim 2, wherein the fifth reciprocating drive source in the heater means comprises a fifth cylinder controlled by a control signal. 4. Each of the workpiece gripping means comprises a fixed side mold assembly and a movable side mold assembly, and the fixed side and movable side mold assemblies are an upper mold member, a middle mold member and a lower mold, respectively. Each of the cutter means is divided into members and has a workpiece gripping surface that conforms to the cross-sectional shape of the workpiece in order to grip the workpiece for a desired length in a mutually aligned state. One is assembled to the movable side upper die member of the one workpiece grasping means, and the other is assembled to the movable side die member of the other workpiece grasping means. The thermal fusion bonding processing apparatus according to claim 1. 5. The fixed side mold assembly in each of the workpiece gripping means is assembled on the machine body guided by the guide means, and the movable side mold assembly in each of the workpiece gripping means includes: It is assembled by being biased in the expansion direction with respect to the guide direction of the fixed-side die assembly, and is formed so as to retract by a preset amount when the workpiece gripping means are butted against each other. The thermal fusion bonding processing device according to claim 4.