JPS6147715B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing an instrument panel mainly used as an interior material for automobiles.

Traditionally, to manufacture instrument panels, semi-rigid skin materials such as polyvinyl chloride and ABC
When molding hard core materials such as resin between molds,
The space formed between the skin material and the core material is filled with a foamable resin such as polypropylene and heated to foam. According to such conventional means, there were problems in that it took a long time to foam, irritating gas was generated during foaming, and it was difficult to control temperature and humidity. A composite sheet in which material and a foam sheet are bonded together in advance is wound around a roll, etc. This composite sheet is cut into a predetermined length to make a unit sheet, and this unit sheet is guided to a heating station until it reaches a temperature close to its softening point. Japanese Patent Laid-Open No. 54-144478 discloses an instrument panel manufacturing apparatus in which the unit sheet is heated to an elevated temperature, then guided to a molding station, and pressed between molds using a separately prepared core material and adhesive. Shown in No.

In the case of such manufacturing equipment, a loading station,
An endless conveyance chain is provided that circulates through the heating station and the forming station, and the sheet is pierced with a prick provided in the conveyance chain to convey the sheet sequentially through each station. For this reason, the sheet must be conveyed while maintaining the positional relationship for each station, which makes it impossible to operate independently, and there is a problem that the molding cycle must be determined according to the slowest station.
In addition, since the conveyance chain passes through a heating station, it must be constantly cooled, which affects durability.Furthermore, since the conveyance chain is located inside the forming station, the conveyance chain can reach the position where the sheet is held. There is a problem in that the molding method is restricted, such as having to move both the upper and lower molds for molding.

The present invention has been made to solve the above problems, and its purpose is to be able to perform charging, heating, and molding under optimal working conditions for each station, and to have no restrictions on the molding method. To provide an instrument panel manufacturing device with excellent durability.

In order to achieve the above object, the present invention provides a sheet feeding device, a sheet heating device, a heated sheet heating device, a sheet feeding device, a sheet heating device, a sheet feeding device, a sheet heating device, a sheet feeding station, a heating station, and a forming station. In an instrument panel manufacturing apparatus in which a molding device for pressure-molding a seat and a core material is connected, the sheet loading device is provided with a rail that can be moved up and down on which a trolley that removably holds the seat can run. , the heating device has an upper rail and a lower rail fixedly installed corresponding to the respective positions of the rising end and the falling end of the rail provided in the sheet loading device, and heating heaters are installed at the upper and lower positions of the upper rail. Further, the forming device is provided with an auxiliary ram that moves up and down between positions corresponding to the upper rail and the lower rail, and a rail for running the bogie is attached to this auxiliary ram. .

An example of the implementation of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an overall front view of an instrument panel manufacturing apparatus according to the present invention. The instrument panel manufacturing apparatus 1 is composed of a sheet inputting station, a heating station, and a forming station. 2. A heating device 3 is placed in the heating station, and a forming device 4 is placed in the forming station.

As shown in FIG. 2, the sheet loading device 2 has a rail 6 disposed at the bottom of a frame 5 made of steel, and a semi-rigid skin material such as polyvinyl chloride is inserted through the rail 6. A sheet pallet 8 containing a large number of unit sheets 7 cut into predetermined lengths by pasting together a foam sheet and a foam sheet can be freely taken in and out of the sheet input device 2.

Further, an elevating cylinder 9 is provided at the upper part of the frame body 5, and a movable plate 11 is attached to the lower end of the piston rod 10 of this elevating cylinder 9. When the elevating cylinder 9 operates, the movable plate 11 moves along the rods 12, 12 of the frame body. It is designed to move up and down within 5. A supporting plate 13 is provided vertically at the end of the movable plate 11,
The rails 14, 14 are held by the support plates 13, and one of the support plates 13 is provided with a mounting plate 15, on which the cylinder 16 is fixed. As the movable plate 11 moves up and down, the rail 14 and cylinder 16 also move up and down.

Further, an elevating cylinder 17 is fixed to the movable plate 11, and a piston rod 18 of the elevating cylinder 17 is fixed to the movable plate 11.
A suction member 20 equipped with a suction disc 19 is attached to the lower end of the sheet pallet 1, and the suction member 20 is lowered by the operation of an elevating cylinder 17 to adsorb a unit sheet 7 in a sheet pallet 8 and lift it upward.

Further, the rail 14 has a groove opening inward, and the rail 14 has a third groove.
Carriage 21 for transporting unit sheets shown in Figures to Figures 7
are fitted together so that they can run freely. This truck 21 will be explained with reference to the state shown in FIG.
4 and 24 are installed so that the vertical member 25 has a substantially inverted U-shape in plan view, and the horizontal members 22,
On the outside of both ends of 23, fitting portions with rails as shown in FIGS. 4 and 5 are provided. That is, taking the right end of the horizontal member 22 as an example, a shaft 26 is inserted into the horizontal member 22 from the outside, and a roller 27 that fits into the groove of the rail 14 is rotatably attached to the shaft 26. A supporting piece 28 projecting outward is fixed to the lower surface of the end of the rail 22, and small rollers 29, 29 sandwich the lower end of the rail 14 on this supporting piece 28.
is attached so that it can rotate freely.

Further, on the upper surface of the left end of the lateral member 22, as shown in FIG. 6, an engaging portion 30 having a groove 30a opening upward is attached, and on the right end of the lateral member 23, an engaging portion 30 as shown in FIG. 7 is attached. Groove 31 opening to
An engaging portion 31 having a shape a is attached thereto. The engaging piece 16 inserted into the groove of these engaging parts 30, 31 at the tip of the rod 16a of the cylinder 16 is inserted into the groove.
b, or by fitting an engaging piece of a cylinder provided in the forming device 4 to be described later and activating the cylinder, the carriage 21 is made to run along the rail.

Furthermore, support pieces 32 and 32 are fixed inwardly to the right ends of the horizontal members 22 and 23, and these support pieces 3
2 and the vertical member 25, a hollow rectangular pipe 33 having a plurality of holes 33a bored at predetermined locations on the upper surface is installed as shown in FIG. And the bracket 3 erected on the support piece 32 and the vertical member 25
A shaft 36 is inserted between 4 and 35, and an arm 3 with a roller 37a attached to the tip is attached to the right end of this shaft 36.
7 is inserted so that it rotates integrally with the shaft 36, and a clamp rod 38 with a needle 38a at the tip is inserted into the shaft 36 at the same interval as the hole 38a of the square pipe 33 and around the shaft 36. It is attached at a predetermined angle offset from the arm 37 with respect to the center. The cylinder 39 fixed to the movable plate 11 as shown in FIG.
When the cylinder 39 performs the retraction operation, FIG.
As shown, the rod tip 39a contacts the arm 37, causing the arm 37 to rotate clockwise in the figure. Then, the shaft 36 also rotates, and the rotation of the shaft 36 causes the clamp rod 38 to fall down, and the needle 38a provided on the clamp rod 38 pierces the end of the sheet 7 placed on the top surface of the square pipe 33, creating a hole. 33a and is adapted to hold the edge of the sheet 7.

Further, the heating device 3 provided adjacent to the sheet feeding device 2 has an exhaust duct 41 at the top of a box-shaped main body 40, and openings 42, 42 are formed at the top of the left and right side walls of the main body 40. The openings 42, 42 are opened and closed by doors 44, 44 which move up and down by the operation of cylinders 43, 43, and openings 45, 45 are also formed in the lower parts of the left and right side walls of the main body 40. ing. Then, an upper rail 46 is fixedly installed at a position within the main body 40 that is at the same height as the rising end of the rail 14 that can be raised and lowered provided in the sheet loading device 2, and both ends of this upper rail 46 are connected to the left and right upper openings 42. , 42, and is fixed at a position inside the main body 40 that is at the same height as the lower end of the rail 14, and both ends of this lower rail 47 are connected to the left and right lower openings 45,
It is made to protrude from 45. And furthermore,
Heaters 48, 48 are provided above and below the upper rail 46.

A base 4 of a molding device 4 adjacent to this heating device 3
9 has four pillars 5 as shown in Figures 1 and 9.
0... is erected, and a fixed plate 5 is installed on the top of this support 50...
1 is fixedly installed, and an elevating cylinder 52 is attached to this fixed plate 51.
A support 50... is provided at the lower end of the rod 53.
A movable plate 54 whose end portion is slidably inserted is attached to the movable plate 54, and an upper mold 55 is provided on the lower surface of the movable plate 54. Thus, the upper die 55 is moved up and down by the operation of the cylinder 52.

Further, an elevating cylinder 56 is provided on the lower surface of the fixed plate 51.
A movable plate 58 is attached to the lower end of the rod 57 of this elevating cylinder 56, and an auxiliary ram 59 is installed with the end of this movable plate 58 slidably inserted into the support column 50.
It is stuck to. As shown in FIG. 10, this auxiliary ram 59 has a rail 61 fixed to a bracket 60 that protrudes inwardly, and one of the brackets 60 has a cylinder 16 provided in the sheet feeding device 2.
A cylinder 62 similar to the above is provided. Thus, the auxiliary ram 59 lifts the upper die 5 by the operation of the lifting cylinder 56.
It is made to move up and down separately from the up and down movement of No.5. At the rising end of the auxiliary ram 59, the heights of the rail 61 provided on the auxiliary ram 59 and the upper rail 46 provided on the heating device 3 become equal, and at the descending end of the auxiliary ram 59, the rail 61 and the height of the heating device 3 become equal. The height is made to be equal to that of the lower rail 47 provided at the top. Therefore, in a state where the heights of the upper rail 46 and the rail 61 are equal, the truck 21 holding the seat 7 is transferred onto the rail 61 by the operation of the cylinder 62. Further, a pair of rods 64, 64 of cylinders 63, 63 provided on the lower surface of the movable plate 58
As shown in FIG. 10, the arm 3 moves forward.
7 in the counterclockwise direction, the clamp rod 38 also rises, and the lower mold 6 on which the core material 65 is placed
The state in which the sheet 7 is held by the cart 21 is released when the sheet 7 is held between the upper mold 6 and the upper die 55, or just before this.

Further, a support stand 67 is arranged behind the base 49 (on the right side as seen in FIG. 9), and a lower mold 6 is placed on this support stand 67.
A cylinder 69 is fixedly installed for pushing out and pulling back 6 onto a dispensing table 68 in front. The dispensing table 68 is provided with rollers 70 on its upper surface for moving the lower mold 66, and is rotatable at its front end, with the front end serving as a fulcrum by the operation of a cylinder 71 disposed below the dispensing table 68. It tilts upwards to make it easier to take out the product.

Next, the overall operation of the instrument panel manufacturing apparatus according to the present invention will be described below.

First, the sheet pallet 8 containing the sheets 7 is placed in the lower part of the sheet loading device 2. Then, the lifting cylinder 17 is operated to lower the suction member 20, and one sheet 7 is suctioned by the suction discs 19 of the suction member 20. Next, the lifting cylinder 17 is operated to remove the suction member 20 while holding the sheet 7.
to the rail 14 position.

Next, the cylinder 16 is actuated, and the rod 16a
A rod 16a is attached to the engaging portion 31 of the trolley 21 which is engaged with the lower rail 47 of the heating device 3.
engage the engaging piece 16b provided at the tip of. Thereafter, the cylinder 16 is operated to cause the rod 16a to retract. Then, since the rail 14 has been lowered to the same height as the lower rail 47, the truck 21 transfers over the rail 47 to the traveling rail 14.
At this time, the sheet guide plates 24 and 24 provided on the vertical member 25 of the truck 21 enter the lower side of the seat 7, and the end of the sheet 7 is inserted into the horizontal member 22 of the truck 21,
It is now listed on 23.

After that, as shown in FIG. 8, the cylinders 39, 39 provided on the movable plate 11 are activated,
1 arm 37 is rotated so that the needle 38a of the clamp rod 38 pierces the end of the sheet 7 so that the sheet 7 is held by the cart 21, and then the suction state is released.

Then, by operating the lifting cylinder 9, the movable plate 11
Then, the rail 14 and furthermore the cart 21 that is locked to the rail 14 are raised. and rail 14
When the height of the upper rail 46 of the heating device 3 becomes equal to the height of the upper rail 46 of the heating device 3, the ascent is stopped, the cylinder 16 is activated, and the rod 16a is caused to perform a projecting motion. Then, the engagement piece 16b at the tip of the rod 16a
Since the cart 21 is engaged with the engaging portion 31 of the heating device 3, the cart 21 runs on the rail 14 and touches the upper rail 46 of the heating device 3.
Then, heat treatment is performed for a predetermined period of time.
Note that after the carriage 21 is pushed into the heating device 3 by the cylinder 16, the engagement state between the engagement portion 31 and the engagement piece 16b is released.

After the heating device is finished, the forming device 4
The lifting cylinder 56 is operated to raise the auxiliary ram 59 so that the rail 61 provided on the auxiliary ram 59 and the upper rail 46 are at the same height, and the cylinder 62 is operated to cause the rod 62a to project. It is tanned so that the engaging piece 62b provided at the tip of the rod 62a fits into the groove 30a of the engaging part 30 formed on the horizontal member 22 of the truck 21. From this state, the cylinder 62 is operated to release the rod 62a.
make a retraction movement. Then, the cart 21 travels on the upper rail 46 and transfers to the rail 61.
The states of the upper mold 55, sheet 7, and lower mold 66 in the molding apparatus 4 at this time are as shown in FIG.

Next, the lifting cylinder 52 and the lifting cylinder 5
6 to lower the upper die 55 and the auxiliary ram 59 separately, and then operate the cylinder 63 attached to the movable plate 58 at an appropriate position to release the holding state of the sheet 7 by the trolley 21 and lower the sheet 7. Place it on the mold 66. After that, the upper mold 55 descends, and the upper mold 55
An adhesive 65 is applied to the upper surface of the sheet 7 between the
It is pressed together with the core material 65 coated with a. This state is shown in FIG.

Furthermore, as the auxiliary ram 59 descends, the empty cart 21 descends to a position equal to the lower rail 47 of the heating device 3, and then travels along the rail 61 by the operation of the cylinder 62, transfers to the lower rail 47, and returns to the initial state. .

On the other hand, when the molding is completed, the lifting cylinder 52 is operated to move the upper die 55 upward, the cylinder 69 is then actuated to move the lower die 66 onto the dispensing table 68 in front of the base 49, and then the cylinder 7
1 to tilt the dispensing table 68 and take out the instrument panel as a product. Thereafter, the dispensing table 68 is leveled, and the lower die 66 is returned to its original position by the retracting operation of the cylinder 69, thereby completing one cycle.

As described above, the instrument panel manufacturing apparatus of the present invention does not have a conveyance chain that circulates through each station as in conventional equipment, but instead has a running rail at each station, and a trolley holding a sheet runs on this running rail. As a result, there is no need to maintain the positional relationship at each station when transporting sheets, and the transport chain does not pass through the heating device, improving durability. Since the sheet is not molded while being held, the molding position can be selected arbitrarily, so the molding method is not restricted, and the optimal working conditions can be selected for each station, which has many advantages. have

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention,
FIG. 1 is an overall front view of the instrument panel manufacturing apparatus according to the present invention, FIG. 2 is a side view of the seat loading device, FIG. 3 is a plan view of the truck, and FIG. 4 is a partially enlarged plan view of the truck. , FIG. 5 is a partially enlarged side sectional view of the truck, FIGS. 6 and 7 are partially enlarged side views of the truck, FIG. 8A is a side view showing the state before the sheet is held by the truck, and FIG. Figure B is a side view showing how the sheet is held by the cart, Figure 9 is a side view of the molding device, Figure 10 is a side view of the main parts of the molding device, and Figure 11 is a diagram showing the upper and lower molds before molding. A sectional view showing the relationship, FIG. 12 is a sectional view of the upper mold and the lower mold during molding. In addition, in the drawing, 2 is a sheet feeding device, 3 is a heating device, 4 is a forming device, 7 is a sheet, 14, 46, 4
7 and 61 are rails, 21 is a truck, 48 is a heater, 59 is an auxiliary ram, and 65 is a core material.

Claims (1)

[Claims] 1. An instrument in which a sheet feeding device, a sheet heating device, and a molding device for press-molding the heated sheet onto the core material are connected in order to manufacture an instrument panel in which a core material and a sheet are crimped. In the panel manufacturing apparatus, the sheet loading device is provided with a rail on which a cart that removably holds sheets can run, and the heating device is provided with a rail that is movable up and down. An upper rail and a lower rail for running the bogie are fixedly installed corresponding to the respective positions of the rising end and the descending end, and heating heaters are arranged above and below the upper rail,
The instrument panel manufacturing apparatus is further characterized in that the forming apparatus is provided with an auxiliary ram that moves up and down between the upper rail and the lower rail, and a rail for running the bogie is attached to the auxiliary ram.