JPH024383B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention constitutes a door panel in which a pair of front and back face plates constituting a door panel can be continuously formed from the same side using a single press machine. The present invention relates to a method and apparatus for forming a face plate.

[Prior Art] Conventionally, door panels installed at openings in buildings such as houses, buildings, factories, etc. have been produced by forming necessary notches in a pair of face plates constituting the door panel, and then forming the four peripheral edges of the face plate into a box shape. After the bending process, necessary intermediate members such as a liner, inner rib, core material, etc. are interposed between the pair of face plates, and these face plates and the intermediate member are bonded with adhesive.
It is manufactured by fixing and molding by appropriate means such as welding. However, in the process of forming the pair of face plates constituting the above-mentioned door panel, the formation of the rising piece that becomes the expected surface of the door panel is common to the pair of face plates by punching out the corners of the face plate and bending the four edges. However, when making a pair of front and back door panels, the mounting holes for locks, screws, and some types of small windows that are necessary for the construction of the door are located on each face plate that becomes the front and back panels. In order to match the punched openings of the two face plates, it is necessary to form each of the face plates separately.

However, with conventional press equipment, it is impossible to perform punching at different positions using a single press equipment by switching the punching position each time the face plate is conveyed from the same side. A press device for forming the face plate and a press device for forming the back plate must be provided separately, which not only increases the size of the entire device, but also allows the face plate formed by each press device to be used as a pair of front and back plates. Since it is not conveyed continuously, when the intermediate member is polymerized and interposed, it is necessary to assemble each of the separately supplied front and back face plates into a pair of front and back face plates,
This made the work complicated and led to a decrease in work efficiency, which in turn made mass production of door panels difficult and caused an increase in costs.

[Problems to be Solved by the Present Invention] The present invention has been devised in view of the above-mentioned actual situation and to eliminate the drawbacks of the conventional technology, and its purpose is to continuously transport the material on the same transport line. Although the face plate is punched and bent from the same side using a single press machine, the punching of mounting holes for components necessary for the construction of the door, such as lock mounting holes and hinge mounting holes in the door panel, cannot be punched out. The structure is configured so that the formation of the face plate and the back plate can be switched, so that the front plate and the back plate of the door panel are formed alternately each time the face plate is transported, and the double-sided plates are formed separately each time in the intermediate member polymerization and interposition process. A door panel that simplifies the work by completely eliminating the need to assemble it from the conveyor line, improving work efficiency, making the entire device more compact, and allowing mass production of inexpensive door panels. It is an object of the present invention to provide a method and apparatus for molding a face plate constituting a face plate.

[Means for Solving the Problems] In order to solve the problems, the first technical means adopted by the present invention is to punch and fold the face plates that are continuously conveyed on the same conveyance line from the same side using a single press device. When forming a pair of front and back face plates that are bent to form a door panel, the corner portions of the face plate are punched out and the four edges are bent at the same time to form a rising piece that will serve as a prospective surface when forming the door. 1st
a second step of forming a surface plate by punching mounting holes for members necessary for the construction of the door in the face plate; and a second step of punching mounting holes for the members necessary for the construction of the door corresponding to the surface plate. The first step is performed each time the face plate is conveyed, and the second and third steps are performed when the rising pieces of the front and back plates are brought together. The mounting holes of the face plate are arranged alternately each time the face plate is transported so that the mounting holes coincide with each other and serve as mounting parts for the parts necessary for the door.As a second technical means, A press device is provided for punching and bending continuously conveyed face plates from the same side, and the punch plate of the press device has a punching blade for punching out the corners of the face plate and a bending metal for bending the four edges. The mold and
A punching blade is provided on the front plate and the back plate for punching out mounting holes for necessary members, and a holding plate is provided between the punch plate and each punching blade to hold each punching blade in an activated state or a non-activated state. The retaining plate is interlocked and connected to an operating mechanism independently provided corresponding to each punching blade, and when the retaining plate is advanced by selective operation of the operating mechanism, the operation occurs. This feature is characterized in that only the punching blade corresponding to the mechanism operates.

[Operation of the Invention] Therefore, according to the present invention, the face plates that are continuously conveyed on the same conveyance line are alternately and continuously punched and bent as the front and back face plates of the door panel using a single press device. In addition, in the polymerization and interposition process of intermediate members, it is completely unnecessary to assemble double-sided plates from separate conveyor lines, which simplifies the work and improves work efficiency. This makes it possible to downsize the door panels and mass-produce inexpensive door panels.

[Example] The configuration of the present invention will be described in detail with respect to an example shown in the drawings.

In FIGS. 1 and 2, 1 is a press device, and the press device 1 has a conveyance path for the face plate A, and a carry-in device 2 is disposed on the carry-in side of the face plate A. Then, the adhesive is applied and dried in the previous step, and the face plates A, which are stacked with the coated side facing upward, are taken out one by one and conveyed to the press device 1. On the other hand, an unloading device 3 is disposed on the unloading side of the press device 1, and transports and supplies the punched and bent face plate A to the next process of polymerizing intermediate members B such as liners and core materials. It's becoming like that.

The press device 1 includes a loading device 2 and a loading device 3.
A punch plate 5 and a die plate 6 are installed above and below on a machine frame 4 of the press apparatus 1. The punch plate 5 is moved up and down by a main hydraulic cylinder (not shown) so as to press against the upper surface of a die plate 6 disposed on a machine stand 7. Furthermore,
As shown in FIGS. 3 to 4 a, the punch plate 5 includes front and back plates constituting the door panel.
A ₁ and A ₂ have post receiving holes C ₁ and louver mounting holes.
Punching blades 8a, 8b, 8c for punching each mounting hole in C ₂ and corner part C ₃ , window hole D ₁ and lock mounting hole
D ₂ , punching blades 9a, 9b, 9c and 9a', 9b', 9c' for punching each mounting hole of the hinge mounting hole _D3 are provided, and punching blades corresponding to the above-mentioned left-right symmetrical positions are provided. As shown in FIGS. 5a and 5b, the punching blade 8 and the punching blade 9, which are representatively shown as 8a etc. and punching blade 9a etc., are at the punching position when the punch plate 5 is lowered and when it is raised. The sliding body 11 is fitted to the lower end of a sliding body 11 that is fitted to be vertically slidable between the punch plate 5 and the non-punching position, and the sliding body 11 is fitted to the support rod 10 that is loosely fitted and fixed to the punch plate 5. It is suspended from the lower end of the slide guide 10a via a sliding guide 10a. Further, the upper surface 11 of the sliding body 11 on which the punching blades 8 and 9 are mounted
The gaps a, a... formed between the lower surface of the punch plate 5 and the bottom surface of the punch plate 5 have one end connected to a hydraulic cylinder 12,
Holding plates 13a, 13a... and 13b, 13b... connected to telescopic rods 12a, 12a... of 12...
are inserted so as to be able to move forward and backward, and the punching blades 8 and 9 are connected to each holding plate 13a, 13a..., 13b, 1
3b..., each mounting hole C ₁ , C ₂ , C ₃ and D 1 , _{D 2} of double-sided plates A ₁ and A ₂ is inserted each time the punch plate 5 is lowered. , D ₃ punching operation.

Next, the selection operation of the punching operation state and the non-operation state of the punching blades 8 and 9 will be explained in detail. In FIGS. 6 and 7, a guide body 1 is provided on the bottom surface of the punch plate 5 at a position facing away from the punch plate 5.
The upper surface parts 14a, 14a of 4, 14 are fixed in parallel, both ends of the holding plates 13a, 13a... are inserted into the sliding parts 14b, 14b, and a hydraulic cylinder 12 is fixed to one side. Telescopic rod 12
The above-mentioned holding plates 13a, 13a are
...is configured to be slidable in the horizontal direction. Further, at the lower end of the support rod 10, an upper surface 11a is provided.
A sliding guide body 10a is installed which penetrates the inner wall 11b of the sliding body 11 and slides up and down against the inner wall 11b of the sliding body 11, and the retaining plates 13a, 13a, . . . When the holding plate 13a is pulled toward the hydraulic cylinder 12 side through the holding plate 13a and sliding in the horizontal direction, the space a becomes a free space equal to the thickness t of the holding plate 13a. Therefore, when the punching blade 8 descends via the sliding body 11 due to the downward movement of the punch plate 5, the sliding body 11 is loosely fitted to the support rod 10 by the plate thickness t, as shown in FIG. 7b. Therefore, the punching operation stroke of the punching blades 8 and 9 is shortened by a stroke corresponding to the plate thickness t, and the punching operation for the face plate A is not performed.

Furthermore, among the punching blades 8 and 9, the punching blade 9
Regarding a and 9a', as shown in FIG. 9a,
A fitting recess 15 is formed in parallel at the upper end 11c of the sliding body 11 on which the punching blade 9a is mounted at the lower end.
a, 15a and a recess 15b extending longitudinally through the recesses 15a, 15a, forming a sliding fitting part 15, and one end of a holding plate 13b formed to fit with the sliding fitting part 15. is connected to the telescopic rod 12a of the hydraulic cylinder 12, and as shown in FIG. When the plate 5 is inserted between the plate 5 and the sliding body 11, as shown in FIG. It will be done. In addition, with the holding plate 13b inserted between the punch plate 5 and the sliding body 11, as shown in FIG.
As shown, the telescopic rod 12a is connected to the hydraulic cylinder 1.
2, then lower the punch plate 5 and press the face plate A via the holding plate 13b.
The holding plate 13b is fitted into the sliding fitting part 15, and as shown in FIG. It is configured to slide upward so as to shorten the plate thickness by the thickness t, and to prevent the punching operation of the face plate A by the punching blade 9a.

Next, the configuration of the upper and lower molds will be explained.

In FIGS. 4a to 5b, 16 is an upper mold, and the upper mold 16 is mounted on the lower surface of the punch plate 5 so as to be movable in the vertical direction.
Its size is the same as the inner dimension of the folded face plate A, and a punching blade through hole 17 is formed therein, and the punching blade 8 is placed in the punching position via the sliding body 11. and 9 are formed to protrude downward. Reference numeral 18 denotes a lower mold installed on the die plate 6, and the lower mold 18 is provided with punching blade insertion grooves 19, 19, . . . corresponding to the punching blades 8, 9, respectively. .

In addition, 20 is a bending mold equipped on the die plate 6, 21 is a positioning body for the face plate A fixed to the tip of the hydraulic cylinder 22, and 23 is a push-up body for the molded face plate A.

In the configuration as described above, in order to punch and bend the face plate A to form a pair of front and back face plates that make up the door panel, first, a hot melt adhesive is applied to the back side in the previous step, and the back side is The stacked face plates A are taken out one by one by the carry-in device 2 and continuously fed to the press device 1. The supplied face plate A is moved to the lower mold 18 by the positioning body 21.
It is placed in a predetermined position on the top. Thereafter, the main hydraulic cylinder (not shown) is activated, and the punch plate 5 is lowered, and the molds 16 and 18 at both the upper and lower ends are in a press-contact standby state, but at this time, the post receiving hole C ₁ ,
Respective holding plates _{13a ,} 13a, .
12... is inserted between the punch plate 5 and each sliding body 11, 11..., and the face plate A
Punching blade 9a punching out window hole _D1 located on one side of
The punch plate 5 includes a holding plate 13b corresponding to the holding plate _13b , and holding plates 13a, _13a , . and each sliding body 11, 11...

After that, the punch plate 5 starts to descend,
Face plate A first has corner part C ₃ and hinge mounting hole D _3.
are punched out by the punching blades 8c and 9c, respectively, and as shown in FIGS. Although the bending starts, the punching blades 8a, 8
b, 9a and 9b are the pressure contact surface 1 of the upper mold 16
Since the punching blades 8a and 8 protrude downward from each other, the punching blades 8a and 8
The punching operation by means b, 9a, and 9b is also performed, and when the bending of the four edges is completed, the required punching process is also completed.

Next, as the main hydraulic cylinder (not shown) contracts, the punch plate 5 rises, and at about the same time, the face plate A on which the push-up body 23 is formed is pushed up.
This pushed-up face plate A is carried out from the press device 1 by the carrying-out device 3, and is supplied and conveyed to the next process, which is the superposition process of the intermediate member B. Before and after carrying out the molded face plate A, a new face plate A is supplied to the press device 1, and the bending and punching process is continuously performed.

Here, in the above-mentioned continuous bending and punching process of the face plate A, a window hole D ₁ corresponding to the window of the door panel,
Lock mounting hole that also corresponds to the lock on the door panel
The punching blade 9 that punches out _D2 and hinge mounting hole _D3 is
When the punching blades 9a, 9b, and 9c perform the punching operation, the punching blades 9a', 9b', and 9c' operate alternately for each face plate A that is continuously conveyed so that the punching blades 9a', 9b', and 9c' do not perform the punching operation. , the respective hydraulic cylinders 12, 12, . The face plates A are successively punched and bent one by one into a front plate A ₁ and a back plate A ₂ , and are then supplied to the next step of polymerization by the carrying-out device 3 . Therefore, in the polymerization process, the preceding face plate A
After interposing the intermediate member B, the subsequent face plate A can be easily and smoothly formed into an unbonded door panel by simply inverting and polymerizing the face plate A of the door panel.
The bending and punching process can be performed continuously, and the front plate A ₁ and the back plate A ₂ can be processed alternately, resulting in significant labor savings when incorporated into a molding line for standard products that can be mass-produced. It is possible to reduce costs and reduce costs.

In this embodiment, the punching blades 8a and 8b corresponding to the post receiving hole C ₁ and the louver mounting hole C ₂ are also operated to extend and retract the retaining plate 13a by the expansion and contraction operation of the hydraulic cylinder 12 in the same way as the punching blade 9. The punching blades 8a and 8b can be switched between an operating state and a non-operating state, but if the mounting holes C ₁ and C ₂ are not required depending on the specifications of the door panel, the face plate A can be punched. You can prevent it from being removed.

[Effects of the Invention] In short, the present invention provides a method for forming a pair of front and back face plates constituting a door panel by punching and bending face plates that are continuously conveyed on the same conveyance line from the same side using a single press device. , a first step of punching out the corners of the face plate and bending the four edges at the same time to form a rising piece that will be a prospective surface when constructing the door; It consists of a second step of punching out mounting holes for members to form a front plate, and a third step of punching out mounting holes for members necessary for the construction of the door corresponding to the front plate to form a back plate. The first step is performed each time the face plate is transported, and the second and third steps are performed so that when the rising pieces of the front and back plates are butted together, the mounting holes of the front and back plates are aligned and the door is attached to the door. Since the process is carried out alternately each time the face plate is transported so that it becomes the attachment part for the necessary parts, it is possible to form the front and back face plates of the door panel continuously and alternately from one press machine. This eliminates the need for two press machines for punching and bending the front plate and back plate as in the past, making it possible to downsize and simplify the entire machine and simplify the factory layout. , the front plate and the back plate can be molded continuously and alternately and transported as they are to the next process, and even when the front plate and the back plate are assembled to form a door panel, the intermediate member is attached to the preceding face plate. Interpose the subsequent face plate by inverting it and overlapping it,
This is an extremely useful new effect in that it is possible to form unbonded panels with this simple process, and it is possible to significantly save labor and reduce costs in manufacturing standard door panels that can be mass-produced. It is something that plays.

[Brief explanation of drawings]

The drawings show an embodiment of the method and apparatus for forming the face plate constituting the door panel of the present invention, and FIG. 1 is an overall side view of the press apparatus, and FIG.
The figure is an overall plan view of the same as above, Figure 3 is an explanatory diagram showing the forming process of the face plate, Figure 4 a is a bottom view of the punch plate, Figure 4 b is a plan view of the die plate, Figures 5 a and b are An explanatory view of the main parts of the punching blade, Figures 6a and b are explanatory diagrams of the operation of the punching blade, and Figures 7a and b and Figures 8a and b show the operating and non-operating states of the punching blade. FIGS. 9a, b and c are explanatory diagrams of the operation of the punching blade, and FIGS. 10a, b and c are explanatory diagrams of the operation showing the punching and bending state. In the figure, 1...Press device, 5...Punch plate, 8, 8a, 8b, 8c...Punching blade, 9, 9
a, 9b, 9c, 9a', 9b', 9c'... punching blade,
13a, 13b...holding plate, 16...upper mold,
18...Lower mold, 20...Bending mold, A...
A face plate, _A1 ...front plate, _A2 ...back plate, _C3 ...corner part.

Claims (1)

[Scope of Claims] 1. When forming a pair of front and back face plates constituting a door panel by punching and bending face plates continuously conveyed on the same conveyance line from the same side using a single press device, the corner portions of the face plates are a first step of simultaneously punching out and bending the four edges to form a rising piece that will serve as a prospective surface when constructing the door;
A second step of forming a front plate by punching mounting holes for members necessary for the construction of the door in the face plate, and forming a back plate by punching mounting holes for members necessary for the construction of the door corresponding to the front plate. The first step is performed each time the face plate is transported, and the second and third steps are performed when the rising pieces of the front and back plates are butted together. A method for forming a face plate constituting a door panel, characterized in that the process is carried out alternately each time the face plate is conveyed so that the mounting holes coincide and serve as attachment parts for components necessary for the door. 2 A press device is provided that punches and bends the face plates that are continuously conveyed on the same conveyance line from the same side, and the punch plate of the press device has a punching blade that punches out the corners of the face plate and a punch that punches the corners of the face plate and bends the four edges. A bending die is provided to punch out the mounting holes for the necessary parts on the front plate and the back plate, and each punching blade is placed between the punch plate and each punching blade in an operating state. A holding plate that is held in a non-operating state is inserted so as to be movable forward and backward, and the holding plate is interlocked and connected to an operating mechanism independently provided corresponding to each punching blade, and the holding plate is moved by selective operation of the operating mechanism. 1. An apparatus for forming a face plate constituting a door panel, characterized in that when the machine advances, only the punching blade corresponding to the operating mechanism operates.