JP2944318B2 - Fixing device for synthetic resin plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a synthetic resin plate.

[0002]

BACKGROUND OF THE INVENTION The applicant of the present invention has previously described in Japanese Patent Application No. 3-348718 a method of fixing plate members to each other with pins made of the same material as the plate members. A pin having a large-diameter head at one end of the shaft, a tapered surface at the outer periphery of the other end, and a pin having an axial through hole at the center is attached to the center of the pressing shaft. The metal pin having a tapered sharp portion coinciding with the tapered surface portion is inserted and attached to the metal pin, and then the pressing shaft is moved toward at least two plate-like bodies that are overlapped, and the sharp portion of the metal pin and While forming a pilot hole by the tapered surface portion, the shaft portion is press-fitted so that at least the tapered surface portion protrudes from the lower surface of the plate member located below, and then the metal pin is extracted from the pin, and then protruded from the lower surface of the plate member. At least te We proposed a method of fixing the plate-like member each other the path surface by variation to engage the lower surface of the plate-like body.

The present invention relates to the above-mentioned Japanese Patent Application No. Hei 3-3487.
The object of the improvement of the invention of No. 18 is that the resin pins can be inserted and fixed without previously forming a pilot hole between the synthetic resin plates, and the fixing operation can be performed efficiently. An object of the present invention is to provide a fixing device for a synthetic resin plate.

Another object of the present invention is to provide a fixing device for a synthetic resin plate which can be recycled without going through a sorting operation when the synthetic resin plate is reused. Still another object of the present invention is to provide a fixing device for a synthetic resin plate capable of making a fixing portion of the synthetic resin plate almost flat.

[0005]

Therefore, according to the present invention, a laminated synthetic resin plate is made of the same synthetic resin as the resin plate, and has a large diameter formed at one end of a shaft portion having a hollow portion formed at the center. In a fixing device for piercing and fixing a resin pin having a piercing portion formed at the portion and the other end, a through hole having a diameter larger than a shaft portion of the resin pin and smaller than a large diameter portion is formed to support a synthetic resin plate. A main body frame having a supporting base to be moved, and a slider having an engaging shaft mounted on the main body frame so as to be movable toward the supporting base and fitted in a hollow portion of the resin pin on a surface facing the supporting base. A first moving member that moves the slider, a pressing member that is disposed relative to the slider across the support table, and that can be inserted into a through hole of the support table, and a pressing member that moves toward the support table to A second moving member to be inserted into the hole; A heating member that pierces the synthetic resin plate on the support base and thermally deforms the piercing portion of the resin pin located in the through hole; and a third moving member that moves the heating member toward the inside of the through hole. It is characterized by becoming.

[0006]

According to the present invention, a resin pin is pressed and pierced onto the superposed synthetic resin plates, and then the pierced portion of the resin pin protruding from the synthetic resin plate is deformed into a substantially flat shape by a heating member. The fixed synthetic resin plate is fixed.

At this time, since the piercing portion is deformed in a state where the pressing member is pressed into the synthetic resin plate and deformed into a concave shape, the synthetic resin plate can be made substantially flat.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the present invention will be described below with reference to the drawings.

First, an apparatus for fixing a synthetic resin plate according to the first embodiment will be described.

FIG. 1 is a perspective view of a resin pin for fixing a synthetic resin plate.

FIG. 2 is a central longitudinal sectional view of the resin pin.

FIG. 3 is a perspective view of the fixing device.

The resin pin 1 is made of the same resin as the synthetic resin plates 3 and 5 described later, and has a head 7, a shaft 9 and a piercing portion 11 integrally formed.

The head 7 of the resin pin 1 has a larger diameter than the shaft 9, and a recess 13 having a predetermined inner diameter is formed at a predetermined depth in the center of the head 7 and the shaft 9. The axial length of the shaft 9 is set slightly longer than the thickness of the synthetic resin plates 3 and 5 to be fixed. Further, a piercing portion 11 is formed integrally with the lower portion of the shaft portion 9, and the piercing portion 11 is formed in a tapered shape with a sharp tip.

The body frame 17 of the fixing device 15 has a support 19 and an upright portion 21.
Are formed larger in diameter than the shaft portion 9. And through hole 2
An upright portion 21 is attached to the three support bases 19, and a slider 25 is supported by the upright portion 21 so as to be movable in the vertical direction.

The slider 25 is connected to a rod of a cylinder 27 constituting a first moving member attached to the upright portion 21, and is moved up and down with the operation of the cylinder 27.

A pressing shaft 29 having an outer diameter substantially coincident with the head 7 is attached to the lower surface of the upright portion 21 facing the support base 19, and an engaging shaft 31 is formed at the center of the pressing shaft 29 with the concave portion 13. It is attached so that it can be inserted.

Pressing cylinders 33 and 35 constituting second and third moving members having axes in the vertical direction are respectively attached to the main body frame 17 below the through holes 23, and pressurizing cylinders as second moving members are provided. The rod 33 has a pressing ring 37 as a pressing member, and the pressing cylinder 35 as a third moving member has a heating mold 39 as a heating member.
Are mounted so as to be positioned inside the pressing ring 37. The pressing ring 37 has an outer diameter substantially matching the inner diameter of the through hole 23, and a cooling mechanism (not shown) through which cooling water flows is built in the pressing ring 37. A heating member (not shown) such as an electric heater is built in the heating mold 39, and the heating member 39 is heated to a temperature at which the piercing portion 11 of the resin pin 1 is thermally deformed. In addition, a recess 41 having a shape substantially matching the head 7 is formed on the upper surface of the heating die 39.

Next, the synthetic resin plate 3.
5 will be described.

FIG. 4 is a schematic sectional view showing a state in which the resin pin is attached to the pressing shaft.

FIG. 5 is a schematic sectional view showing a state in which the resin pin is piercing the synthetic resin plate.

FIG. 6 is a schematic sectional view showing a state after the resin pin is pierced into the synthetic resin plate.

FIG. 7 is a schematic sectional view showing a state in which the synthetic resin plate is pressed by the pressing ring.

FIG. 8 is a schematic sectional view showing a state in which the piercing portion is thermally deformed.

A plurality of superposed synthetic resin plates 3 and 5 are shown on the support 19 in a state where they are positioned. Further, in the state before the fixing, the slider 25 has an interval such that the interval between the lower end surface of the pressing shaft 29 and the upper surface of the synthetic resin plate 3 placed on the support base 19 is longer than the axial length of the resin pin 1. The pressing ring 37 and the heating mold 39 have been moved to the lower position while being moved to the upper position.

In the above state, the cylinder 27 is operated with the engagement shaft 31 inserted into the recess 13 and the resin pin 1 attached thereto, as shown in FIG.
Is moved downward, as shown in FIGS. 5 and 6, the resin pin 1 attached to the pressing shaft 29
Are pierced into the synthetic resin plates 3 and 5, and the shaft portion 9 is pierced between the synthetic resin plates 3.5 while forming a prepared hole. At this time,
The upper surface of the pierced synthetic resin plate 3 is elastically deformed in a concave shape around the shaft 9 by the head 7 pressed by the pressing shaft 29. Thereby, the upper surface of the head 7 and the upper surface of the synthetic resin plate 3 located above are made substantially flush. The lower portion of the shaft portion 9 and the piercing portion 11 of the resin pin 1 pierced by the synthetic resin plates 3 and 5 project downward from the lower surface of the synthetic resin plate 5 located below.

When the pressure ring 33 is moved upward by operating the pressure cylinder 33 in the above state, the pressure ring 37 is located in the through hole 23 and located below the synthetic resin plate 5 as shown in FIG. The lower surface is pressed to deform the pressed portion of the synthetic resin plate 5 into a concave shape. When the heating cylinder 39 in the heated state is moved upward by operating the pressurizing cylinder 35 in the above state, the heating mold 39 is pressed against the piercing portion 11 protruding from the lower surface of the synthetic resin plate 5 and thermally deformed. To form an engaging portion 43 having a shape substantially matching the concave portion 41. At this time, since the lower surface of the synthetic resin plate 5 is elastically deformed into a concave shape by the pressing ring 37, the lower surface of the formed engaging portion 43 is substantially flush with the lower surface of the synthetic resin plate 5.

Next, in the above state, the heating of the heating mold 39 is interrupted to cool and harden the engaging portion 43, and then the respective pressurizing cylinders 35 and 33 are moved back so that the heating mold 39 and the pressing ring 3 are moved.
7 is returned to the original position, the cylinder 27 is moved back, the pressing shaft 29 is returned upward, and the pressing shaft 29 is separated from the resin pin 1 fixed to the synthetic resin plates 3.5 to complete the fixing operation.

An apparatus for fixing a synthetic resin plate according to the second embodiment will be described.

FIG. 9 is a schematic sectional view showing a setting state of a synthetic resin plate or the like with respect to the fixing device.

FIG. 10 is a schematic sectional view showing a state in which a resin pin is inserted into a synthetic resin plate.

FIG. 11 is a schematic sectional view showing the pressed state of the engagement ring.

FIG. 12 is a schematic sectional view showing the state of thermal deformation of the piercing portion.

The washer 81 as an engagement ring used in the synthetic resin plate fixing device according to the second embodiment is made of the same synthetic resin as the synthetic resin plates 3 and 5 and the resin pin 1 and has a head 7.
And a through hole 83 is formed at the center of the washer 81 with an inner diameter substantially matching the outer diameter of the shaft portion 9.

The support table 1 corresponding to the upper part of the through hole 23
9 has a large-diameter portion 85 which can support the outer peripheral portion of the washer 81 and is formed coaxially with the through hole 23.

Then, the synthetic resin plates 3 and 5 which are superimposed on the support base 19 are placed in a state where the outer peripheral portion of the washer 81 is engaged with and attached to the large diameter portion 85 and the pressing shaft 2
The resin pin 1 is attached to the lower portion of the housing 9 such that the engagement shaft 31 is inserted into the recess 13.

Next, in the above state, when the cylinder 27 is operated to move the pressing shaft 29 downward, the resin pin 1 attached to the pressing shaft 29 is moved to the synthetic resin plate mounted on the support base 19. The shaft 9 is inserted into both 3 and 5, while piercing the piercing portion 11 to form a pilot hole. In this state, the upper surface of the synthetic resin plate 3 located above is elastically deformed in a concave shape around the resin pin 1 by the head 7 pressed into contact. Further, the piercing portion 11 protruding from the lower surface of the synthetic resin plate 5 located below is located in the through hole 23 through the through hole 83 of the washer 81.

Next, when the pressure ring 33 is moved upward by operating the pressure cylinder 33, the pressure ring 37 is located in the through hole 23 and the synthetic resin positioned below via the washer 81. The plate 5 is pressed upward, and the lower surface of the synthetic resin plate 5 corresponding to the washer 81 is elastically deformed into a concave shape. Next, when the pressurizing cylinder 35 is operated in the above state to move the heating mold 39 in the heated state upward in the through hole 23, the heating mold 39 presses against the lower part of the piercing portion 11 in the through hole 23. Then, the engagement portion 87 having a shape corresponding to the recess 41 engaging with the lower surface of the washer 81 is formed.

After the above operation, the heating of the heating mold 39 is interrupted to cool and harden the engaging portion 87, and then the respective pressure cylinders 35 and 33 are moved back to move the heating mold 39 from the engaging portion 87. In addition, the pressing ring 37 is separated from the lower surface of the washer 81, and the cylinder 27 is moved back to separate the pressing shaft 29 upward from the resin pin 1 to complete the fixing work of the synthetic resin plates 3 and 5 by the resin pin 1.

In Embodiments 1 and 2 described above, the heating mold 39 is heated by the built-in heat source to a temperature at which the piercing portion 11 of the resin pin 1 can be thermally deformed. A member may be used. In this case, the piercing portion 11 is resonated by the ultrasonic vibration output from the ultrasonic vibration member pressed against the piercing portion 11 of the resin pin 1 to generate heat and to be thermally deformed to be engageable.

[0041]

As described above, according to the present invention, the resin pins can be inserted and fixed without forming a pilot hole between the synthetic resin plates in advance, and the fixing operation can be performed efficiently.

Another object of the present invention is to provide a fixing device for a synthetic resin plate which can be recycled without going through a sorting operation when the synthetic resin plate is reused. Further, the fixing portion of the synthetic resin plate can be made substantially flat.

[Brief description of the drawings]

FIG. 1 is a perspective view of a resin pin for fixing a synthetic resin plate.

FIG. 2 is a central longitudinal sectional view of a resin pin.

FIG. 3 is a perspective view of a fixing device.

FIG. 4 is a schematic sectional view showing a state in which a resin pin is attached to a pressing shaft.

FIG. 5 is a schematic sectional view showing a state in which a resin pin is piercing a synthetic resin plate.

FIG. 6 is a schematic sectional view showing a state after a resin pin is pierced into a synthetic resin plate.

FIG. 7 is a schematic sectional view showing a state in which a synthetic resin plate is pressed by a pressing ring.

FIG. 8 is a schematic sectional view showing a thermal deformation state of the piercing portion.

FIG. 9 is a schematic sectional view showing a setting state of a synthetic resin plate or the like with respect to the fixing device.

FIG. 10 is a schematic sectional view showing a state in which a resin pin is pierced into a synthetic resin plate.

FIG. 11 is a schematic sectional view showing a pressed state of an engagement ring.

FIG. 12 is a schematic sectional view showing a thermal deformation state of the piercing portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin pin 3 Synthetic resin plate 5 Synthetic resin plate 7 Large diameter part 9 Shaft part 11 Piercing part 29 Pressing shaft 39 Heating type as heating body

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-179924 (JP, A) JP-A-6-159337 (JP, A) JP-A-1-87907 (JP, A) Jpn. 22321 (JP, U) Japanese Utility Model 62-172811 (JP, U) Japanese Utility Model Application No. 51-89975 (JP, U) Japanese Utility Model Application 58-86318 (JP, U) Japanese Patent No. 2796554 (JP, B2) Japanese Patent Publication No. 47 −36062 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 65/60 F16B 5/04 F16B 19/10

Claims (4)

(57) [Claims] 1. A method according to claim 1 , wherein the superposed synthetic resin plates are combined with the resin plates.
With the same synthetic resin, a shaft part with a hollow part formed in the center
A resin pin with a large diameter part at one end and a piercing part at the other end
In the fixing device that stabs and fixes, the shaft of the resin pin is
The through hole with a smaller diameter than the large diameter part is formed.
A body frame having a support for supporting the plate, and a body frame;
The arm is movably supported by a support
An engaging shaft that is inserted into the hollow portion of the resin pin on the surface facing the table
Move the slider with the slider attached
The first moving member and the slider are placed relative to each other across the support base.
A pressing member that can be inserted into the through hole of the support base;
Move the pressing member toward the table and insert it into the through hole
A second moving member and a pressing member disposed in the pressing member;
Piercing part of resin pin pierced into synthetic resin plate and located in through hole
A heating member for thermally deforming the heating member;
And a third moving member that moves on
Move the slider against the synthetic resin plate
After press-fitting the inserted resin pin and sticking it, the pressing member
Is moved to press the synthetic resin plate to deform it into a concave shape
Of the resin pin projected from the synthetic resin plate by the heating member
The piercing portion is deformed by heating and engaged to fix the synthetic resin plates to each other.
Fixing device. 2. The heating member according to claim 1, wherein the heating member is built-in.
A synthetic resin plate that thermally deforms the pierced portion of the resin pin with a heat source
Fixing device. 3. The heating device according to claim 1, wherein the heating member is built-in.
Puncture of resin pin by ultrasonic vibration from ultrasonic vibration member
Fixing device for synthetic resin plate that thermally deforms parts. 4. The method according to claim 1, wherein said pressing member is pressed against said pressing member.
On the lower surface of the synthetic resin plate, the same as the synthetic resin plate and the resin pin
Fixing of synthetic resin plate provided with synthetic resin washer
apparatus.