JPH0435893A - Trimming device for resin made formed body - Google Patents

Abstract

PURPOSE:To cause no misregistration on a formed body at the trimming work time, by providing a noncontact type work means for linearly cutting the formed body supported with its positioning by a positioning mean and pressing means. CONSTITUTION:A trimming treatment is executed via a noncontact type work means (jetting machine) 20 in the state of a formed body 12 whose resin made surface layer and resin made base layer are joined being supported with its positioning by a positioning means 14 and pressing means 16. Therefore the deformation caused by the internal stress is not generated on the formed body 12 at this trimming treatment work time and yet the misregistration of the formed body 12 can be checked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a trimming device configured to be capable of efficiently removing unnecessary portions from a resin molded body.

[Prior art] For example, a skin sheet (skin layer) made of vinyl chloride is used as an interior body in which an automobile instrument panel, etc. is incorporated.
A composite molded article is used in which a foam sheet made of vinyl chloride is attached as a cushion layer (base layer).

In this case, after the skin sheet and the foam sheet are joined, they are placed on a jig, which is a positioning means, and
Unnecessary portions are trimmed using a cutter or the like to form a molded body having a desired shape.

[Problems to be Solved by the Invention] However, when the skin sheet and the foam sheet are integrally cut by the trimming process, stress is generated inside them, causing twisting and warping of the molded product, and There is a problem that the trimming position shifts.

The present invention solves this type of problem, and is a resin-made product that can reliably position and support a multilayered molded product and also allows trimming to be performed easily and with high precision. An object of the present invention is to provide a trimming device for a molded body.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides positioning means for positioning and positioning a molded article in which a resin skin layer and a resin base layer are joined; and a positioning means for positioning the molded article. , a pressing means for pressing and supporting the positioning means; a moving means for moving the pressing means forward and backward with respect to the molded article; and cutting the molded article positioned and supported by the positioning means and the pressing means into linear shapes. It is characterized by comprising a non-contact type processing means for processing.

[Function] In the above-mentioned trimming device for a resin molded body according to the present invention, the molded body in which the resin skin layer and the resin base layer are joined is positioned and supported by the positioning means and the pressing means. Since the trimming process is carried out via a non-contact processing means, deformation due to internal stress does not occur in the molded body during the trimming process, and furthermore, positional displacement of the molded body can be prevented.

[Example] An example of the trimming device for a resin molded body according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a trimming device for a resin molded body according to this embodiment.

This trimming device 10 includes a positioning means 14 for positioning a molded body 12 (described later), a pressing means 16 for pressing and supporting the molded body 12 against the positioning means 14, and a pressing means 16 that moves the pressing means 16 forward and backward relative to the molded body 12. It is provided with a moving means 18 for displacing the object, and a jet processing machine (non-contact type processing means) 20 for cutting the molded body 12 that is positioned and supported into a line.

The positioning means 14 includes a positioning jig 24 that is movably disposed at the attachment/detachment station A and the trimming station B via a rotary table 22. This positioning jig 24 is made of aluminum metal or the like, and includes a protection plate (protection member) 26 for protecting the positioning jig 24 from the water jet sprayed from the jet processing machine 20, and a water splash prevention plate ( protection member) 28 is attached (second
(see figure).

The pressing means I6 includes a pressing jig 30 that is detachably held by the moving means I8, and this pressing jig 30 is attached to the molded body 12.
It has a shape corresponding to , and an opening 32 is provided corresponding to the opening portion (described later).

This pressing jig 30 has a first
Clamp member 36 is attached. As shown in FIGS. 3a and 3b, this first clamp member 36 is attached to a pressing jig 30.
It is swingably supported by the
8, and has a notch 40 at its upper end. A tension spring 42 is interposed between the claw portion 38 side of the first clamp member 36 and the pressing jig 30.

The moving means 18 includes a holding member 46 that can be raised and lowered via a cylinder 44, and a clamping means 34 is attached to this holding member 46.
A second clamp member 48 constituting the second clamp member 48 is swingably supported. A locking portion 50 that can be freely engaged with the notch 4G of the first clamp member 36 is provided at the lower end of the second clamp member 48,
A support portion 52 that holds the side portion of the pressing jig 30 is provided, and a piston rod 56 of a cylinder 54 is engaged with the upper portion of the second clamp member 48 .

A jet processing machine 20 is arranged next to the trimming station, and this jet processing machine 20 is equipped with a water jet nozzle 58 which can be displaced in various directions.

Next, the operation of the trimming device 10 according to the present embodiment configured as described above will be described below.

At the attachment/detachment station A, the molded body 12 is placed on a positioning jig 24 constituting the positioning means 14 . As shown in FIG. 5, in this molded body 12, a resin skin sheet (skin layer) 60 and a resin foam sheet (base layer) 62 are joined, and an opening portion 64 is provided at a predetermined position. The skin sheet 60 is placed on the positioning jig 24 with the skin sheet 60 facing upward.

The pressing jig 30 constituting the pressing means 16 is supported by a holding member 46 via a second clamp member 48 constituting the clamping means 34, and the holding member 46 and the pressing jig 30 are held together under the action of the cylinder 44. It descends (see Figure 3a). At the position where the pressing jig 30 presses the molded body 12, the cylinder 44 is deenergized, and the piston rod 56 rises under the action of the cylinder 54 to close the second clamp member 4.
8 swings in the direction of arrow X (see Figure 3). At this time, the support portion 52 of the second clamp member 48 is separated from the pressing jig 30, the first clamp member 36 is swung via the tension spring 42, and the claw portion 38 engages with the positioning jig 24.

Next, the holding member 46 is raised via the cylinder 44,
The positioning jig 24 and the pressing jig 30 fixed to the first clamp member 36 are placed on the rotary table 22 with the molded body 12 positioned and supported.

After the positioning jig 24 and the pressing jig 30 are transferred to the trimming station under the rotational action of the rotary table 22, the jet processing machine 20 is driven and the nozzle 58 is moved along the desired trimming area of the compact 12. The molded body 12 is moved and trimming work is performed on the molded body 12.

At this time, the skin sheet 60, which is the surface side of the molded body 12, is placed above, and the trimming work is performed from this skin sheet 60 side, so that the surface of the skin sheet 60 is cleaned well by the water discharged from the nozzle 58. It can be cut into.

On the other hand, at the attachment/detachment station A, the molded body 12 after trimming is placed, and the holding member 46 is lowered under the action of the cylinder 44 to a position where it engages with the pressing jig 30 . Next, the piston rod 56 is lowered via the cylinder 54, and the support portion 52 of the second clamp member 48 is attached to the pressing jig 3.
0, the locking portion 50 engages with the notch 40 of the first clamp member 36, and the first clamp member 36
The claw portion 38 of is removed from the positioning jig 24.

After the holding member 46 and the pressing jig 30 are integrally raised via the cylinder 44, the molded body 12 after trimming is taken out from the positioning jig 24.

In this case, in this embodiment, the molded body 12 is attached to the positioning jig 2.
4 and the pressing jig 30, the trimming is performed in a state where the molded body 12 is firmly positioned and supported, so that displacement of the molded body 12 can be prevented as much as possible. Furthermore, when trimming the skin sheet 60 and the foam sheet 62 together, deformation due to internal stress does not occur at the joint portion. This provides the effect that the molded body 12 can be trimmed easily and with high precision.

Further, since the positioning jig 24 is provided with a protection plate 26 and a water scattering prevention plate 28, the positioning jig 24 may be damaged or the molded object 1
2 contamination etc. can be prevented as much as possible.

Furthermore, by arranging the pair of positioning jigs 24 on the rotary table 22, it becomes possible to efficiently perform the attachment/detachment work and the trimming operation of the molded body 120 at the attachment/detachment station A and the trimming station B.

In this embodiment, a jet processing machine is used as the non-contact processing means, but the present invention is not limited to this, and a laser processing machine or the like may be used.

[Effects of the Invention] As described above, the trimming device for a resin molded body according to the present invention has the following effects and advantages.

Since the trimming process is performed while the molded body is positioned and supported by the positioning means and the pressing means, the molded body will not be misaligned during the trimming process. Moreover, it is possible to prevent deformation due to internal stress from occurring at the joint site between the resin skin layer and the resin base layer that make up the molded product, which makes it possible to efficiently mold the molded product. Moreover, it becomes possible to perform trimming with high precision.

[Brief explanation of drawings]

FIG. 1 is a front explanatory view of an embodiment of the trimming device for resin molded bodies according to the present invention, FIG. 2 is a partially enlarged front view of the trimming device, and FIGS. 3 a and b are operations of the trimming device. The explanatory diagram, FIG. 4, is a partially enlarged vertical cross-sectional view of the molded body. 10...Trimming device 12...Molded object 14...Positioning means 6...Pressing means 18...Moving means 20...Jet processing machine 22...Rotary table 24... Positioning jig 30...pressing jig 34...clamping means 58...nozzle 60...skin sheet 62...foaming sheet

Claims (5)

[Claims] (1) a positioning means for positioning a molded body in which a resin skin layer and a resin base layer are joined; a pressing means for pressing and supporting the molded body against the positioning means; and a molding means for molding the pressing means. A resin molding device comprising a moving means for moving the body forward and backward relative to the body, and a non-contact processing means for cutting the molded body positioned and supported by the positioning means and the pressing means into a line. Feature trimming device. (2) In the device according to claim 1, the positioning means:
A trimming device for a resin molded body, characterized in that it is movably arranged in a molded body attaching/detaching station and a trimming station, and the pressing means is configured to be freely attachable/detachable to the moving means. (3) A trimming device for a resin molded body according to claim 1 or 2, further comprising a clamping device capable of fixing the positioning device and the pressing device. (4) In the apparatus according to claim 1, the non-contact processing means is a jet processing machine, and the positioning means includes a protection member for protecting the positioning means from the water jet of the jet processing machine. Features: Trimming equipment for resin molded objects. (5) A trimming device for a resin molded body according to claim 1, wherein the pressing means has an opening into which a non-contact processing means can be inserted, corresponding to the opening of the molded body.