JPS6357203A - Mounting-hole processing machine for bonding reinforcing band in wood working part and mounting-hole processing method - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a mounting hole processing machine and a mounting hole processing method for adhesive reinforcing bands in wooden parts, such as wooden door frame materials, door frames, wooden assembled furniture, etc. This method is used to form mounting holes for attaching adhesive reinforcing bands used for bonding wooden parts together and grooves to connect the mounting holes to the wood parts.

[Prior art]

Conventionally, fixing means for fixing wooden parts such as wooden door frames, door frames, or wooden assembly furniture to each other include bolt/nut connections, fixing means using treetops and treetop grooves, and adhesives. There are methods that utilize the adhesive force of an adhesive, and adhesive means that use only an adhesive.

[Problem that the invention seeks to solve]

Among the fixing methods mentioned above, bolt-Nand joints require drilling several holes in the woodwork parts for the bolts to pass through, so excessive force may be applied to the wood during processing or over time, causing cracks. In some cases, the bolts and NANDs may become rusty.

Furthermore, the fixing means using treetops and treetop grooves has the disadvantage that processing requires skill and effort, resulting in high costs.

In addition, bonding methods using adhesives do not require special skill, but the bonding surfaces of the wooden parts may shift while the adhesive cures and hardens, and the adhesive takes a long time to harden, reducing production efficiency. However, it had the disadvantage of high cost.

[Means for solving problems]

Therefore, the applicant has developed an adhesive reinforcing band 8o as shown in FIG. 8 in order to incorporate the advantages of the above-mentioned conventional bonding method using an adhesive and to solve the disadvantages. This adhesive reinforcing band 80 has columnar bodies 81 facing each other at appropriate intervals,
It consists of a thin connecting piece 82 that connects the columnar bodies 81 and 81. and the joint end 1a of the woodwork parts 1, 1 to be joined,
An adhesive reinforcing band 80 is embedded with adhesive into square holes 5, 5 as mounting holes provided near la and grooves 8, 8 opened in a horizontal direction perpendicular to the plane of the square holes 5, 5. By adopting this technical means, unlike the conventional adhesive methods mentioned above, there is no need to wait for the adhesive to cure or harden, and moreover, when the adhesive is cured, a rubber band is used to provide tightening force. etc. to the adhesive points of the woodwork parts 1, 1, and removing them.
The joint end 1a of the woodworking parts 1, 1 is transported to the next process with the wood parts 1 glued together to improve work efficiency and reduce costs.
, la are reliably positioned and bonded to each other.

The specified invention and the second invention have been made in view of the above-mentioned points, and employ electrical control, for example sequence control, to process a drill that can freely rotate and move up and down on woodworking parts. A technical means of equipping the processing table with a rotary saw that is installed above the table and can be rotated horizontally in a plane, perpendicular to the hole drilled in the woodwork part by the drill, and can be moved back and forth. By adopting this method, the mounting hole for attaching the adhesive reinforcing band can be automatically and accurately opened near the joint end of the wooden parts, thereby improving production efficiency and reducing costs. The object of the present invention is to provide a mounting hole processing machine and a mounting hole processing method for adhesive reinforcing bands in woodworking parts.

〔Example〕

The specific invention of the present application and the second invention will be described below with reference to an embodiment shown in FIGS. 1 to 7. Note that the reference numerals related to FIG. 8 are indicated by the same reference numerals.

First, in one embodiment of the specified invention of the present application, there is basically a processing table 2 on which a woodwork part 1 to be processed is placed, and a system for detecting that the woodwork part 1 has been moved to a predetermined processing position. When a glue mint switch L S + and a limit switch LS, which serve as first switch means provided on one side of the processing table 2, are turned on, the woodworking part 1 is moved by the driving force of the descending cylinder CL. A component holding mechanism section 4 in which a press plate 3 for pressably fixing is disposed above the processing table 2 so as to be movable up and down, and a limit switch L S as a second switch means equipped on the component holding mechanism section 4.
2 is turned on, a hole drilling mechanism section 7 is provided with a square drill unit (corner only unit) 6 that can freely descend while rotating into the woodwork component 1 to drill a square hole 5 of a required depth; It is rotatable in a plane and in a horizontal direction perpendicular to the square hole 5, and is movable back and forth, so that a groove 8 in a horizontal direction perpendicular to the square hole 5 is connected to the joint end 1a of the woodwork component 1.
The groove opening mechanism section 9 includes a rotary saw 9a that is installed near the groove opening mechanism section 9.

These will be explained in detail below.

Reference numeral 10 denotes a side-curved guide member formed on the upper surface of the processing table 2; 1) faces the front position of the guide member 10 in order to guide the movement of the woodwork component 1 to be processed in cooperation with the guide member 10; This pressing mechanism 1) includes a displacement lever 13 whose substantially intermediate position is rotatably fixed to the processing table 2 by a shaft 12, and the displacement lever 13.
A tension spring 15 is interposed between the rear end 13b of the displacement lever 13 and the mounting frame 14 in order to always apply a spring force to the tip 13a of the displacement lever 13. It is formed from a push roller 16 for pushing the part 1. Reference numeral 17 denotes a stopper erected at the front end of the guide member 10 in order to restrict the forward movement of the woodwork component 1.

LS is the upper surface of the processing table 2 in order to detect that the woodwork part 1 has been moved to a predetermined processing position on the processing table 2.
A limit switch as a first switch means provided on the side.
This limit switch LS is a switch, and the limit switch LS is connected to a rotating shaft 19 whose one end is fixed at a substantially right angle to the lower end 18b of a detection bar 18 having an upper end 18a projecting into the tip space of the guide member 10. It is turned on and off by the up-and-down movement of a push rod 20 fixed to the other end of the rotating shaft 19. 2
Reference numeral 1 denotes a support tube portion serving as a bearing material that rotatably supports the rotary shaft 19 on the processing table 2.

The component holding mechanism section 4, which has a press plate 3 for pressing and fixing the woodworking component 1, has a cylinder CL that opens a solenoid valve V1 and performs a lowering operation when the limit switch LS is turned on, and a cylinder CL that performs a lowering operation when the limit switch LS is turned on. An elevating rod 22 that is erected on one side of the push plate 3 and has an L-shaped locking portion 23 at its upper end 22a so as to rise and fall with the elevating movement of the cylinder CL.
It is inserted into a fixed frame 24 horizontally arranged above the processing table 2 so as to be able to rise and fall, and is turned on and off by the lifting and lowering movement of the locking part 23, thereby pressing the woodworking part 1 with the press plate 3. , a limit switch LS2 that detects that the drill is fixed and rotates a motor M that moves the rectangular drill unit 6 of the hole drilling mechanism section 7, which will be described later, up and down with respect to the woodwork component 1.

Further, the hole opening mechanism section 7 is fixed to the machine frame 25 on the processing table 2, and there are vertically elongated chip discharge holes 2 for discharging chips around the machine frame 25.
A rectangular drill unit (corner only unit) 6 consisting of a rectangular blade 26 provided with a rectangular blade 6a and a rotary blade 27 rotatably disposed within the rectangular blade 26 and rotated by the rotational force of a motor M2 described later. , a lifting means 28 for moving the square drill unit 6 up and down, and a motor M2 as a drive source for making the rotary blade 27 of the square drill unit 6 rotatable. 29 is the rotary blade 2
This power transmission component 29 is a power transmission component for rotating the motor shaft 3 of the motor Mt as a drive source.
0, and a timing belt 34 wound around a pulley 33 installed on a drive shaft 32 coaxial with the rotary blade 27.

The lifting means 28 also includes the limit switch LS.
A motor M as a drive source that rotates forward when Z is turned on;
A screw rod 37 is rotatably supported in a bearing 36 of a frame 35 located above the processing table 2, and the screw rod 37 is made rotatable by transmitting the rotational force of the motor MI from a drive source to the screw rod 37. Therefore, the screw rod 3
The timing belt 41 wound between the boot IJ3'8 provided at the upper end of the motor shaft 39 and the boot 1) 40 provided at the upper end of the motor shaft 39, and the square drill unit 6 are fixed to the front surface, and the screw A lifting frame 45 is provided with a nut (not shown) that is screwed onto the screw rod 37 so that it can be raised and lowered by zero rotation of the wand 3, and the lifting frame 45 can be raised and lowered without wobbling. It is formed of two guide members 42, 42, which are loosely inserted into the elevating frame 45 for guidance and movement, and whose upper and lower ends are erected between the frame 35 and the processing table 2.

43 rotates the square drill unit 6 twice by rotating the motor M1 in the normal or reverse direction so that the square drill unit 6 of the hole-making mechanism section 7 can reliably drill a hole in the woodwork component 1. This switch means 43 is fixed to a column 44 erected on one side of the processing table 2 in three stages, top, middle, and bottom, and is moved as the lifting frame 45 moves up and down. three limit switches LS4, LS3 that are turned on and off by
.

Formed by LSS. Of these, when the limit switch LS2 is turned on, the middle limit switch LS3 is turned on by pressing a cam plate 4G provided on one side of the lifting frame 45, and thereby the motor M is turned on.
, are quickly and responsively rotated in the forward direction to lower the elevating frame 45 and the rectangular drill unit 6 fixed thereto.

Further, the limit switch L S 4 as a switch means located at the upper stage sets the depth of the square hole 5 to be drilled in the woodwork component 1 by the square drill unit 6 of the hole making mechanism section 7 to a required depth. This limit switch LSa is turned on by being pressed by the cam plate 46 provided on one example of the lifting frame 45 when the lifting frame 45 descends to the lowest position. The normal rotation of the motor M serving as a drive source is stopped, and the motor M is reversely rotated to raise the elevating frame 45 for a required time specified by a timer T.

The required time specified by timer T here is the square drill
When drilling a square hole 5 in a woodwork component 1 using the unit 6, in order to obtain the required depth and shape of the square hole 5, after lowering the square drill unit 6 once, Before descending again to perform drilling work, set the limit
This is the time it takes for the square drill unit 6 to reach a sufficient lifting distance to be completely pulled out from the woodwork part 1 that has been drilled once, from when the switch LS5 is pressed until it is turned on. When the time specified by timer T has elapsed, a signal is immediately sent to motor M+, causing it to rotate in the normal direction, thereby causing the lower glue mint switch LS5 to
Until it is pressed by the cam plate 46 and turned on, the square drill unit 6 descends and begins drilling the second square hole 5 in the woodwork component 1.

The lower limit switch L S s is a square drill.
After drilling by the unit 6, the motor M is reversed to raise the square drill unit 6,
This limit switch L S s is pressed by the cam plate 46 and turned on when the rectangular drill unit 6 descends to the lowest depth to a predetermined depth due to the second drilling.

The groove opening mechanism section 9 also includes a motor M3 as a drive source for rotatably driving a rotary shaft 55 equipped with a rotary saw 9a, and a limit switch LS3 that operates after drilling by the square drill unit 6. The solenoid valve V2 is opened by a signal from the limit switch LS3 at the same time as it is turned off, and the solenoid valve V2 is opened and pressure is inserted, so that the cylinder rod 48 is extended and the base A cylinder CLZ that allows the motor M3 and the rotary saw 9a fixed to the rotary saw 9 to be reciprocated by a required distance l below the processing table 2; A pair of limit switches L S& , L S are arranged oppositely to sandwich the motor M3 provided on the lower surface of the table 2, and after the groove 8 is opened in the woodwork component 1 by the rotary saw 9a, the It is formed of a blowing means 51 for removing chips cut by the rotary saw 9a by blowing out compressed air from the nozzle 50 by opening and closing the electromagnetic valve v3 when the motor M3 moves to the old position. .

This blowing means 51 is connected to the motor M3 and the rotary saw 9a.
A sliding piece 52 protrudes from the side surface of the base 49 to which the motor M3 is rotatably fixed, and an elastic pressing piece 52a for pressing the switch knob is pressed by the sliding piece 52 only when the motor M3 retreats. Limit switches LS, , LS, which are turned on and off, and the limit switches LSs
, L Sq, and a nozzle 50 that opens and closes in response to signals from the compressor pump and blows out air from the compression pump.

53 is a power transmission component for transmitting the rotational force of the motor M to the rotary saw 9a, which includes a pulley 54 installed on the motor shaft 47 and a pulley 56 installed on the rotation shaft 55 of the rotary saw 9a. and a belt 57 wound between the pulleys 54 and 56.

One embodiment of the specified invention of the present application has the above-mentioned configuration, and an embodiment of the second invention of the present application will be explained below in order of steps along with the operation.

First, in the first step, the power switch is turned on to rotate the motors Mz and M3 to rotate the rotary saw 9a and the rotary blade 27 of the rectangular drill unit 6. Thereafter, the woodwork component 1 is guided and moved by the guide member ]0 until its front end 1b is regulated by the stopper 17, thereby moving it to a predetermined processing position on the processing table 2.

At this time, the woodwork component 1 inserted into the guide material 10 is pressed against the pressing roller 16 which is energized by the energizing force of the tension spring 15.
Since the guide member 10 is pressed in one direction by the guide member 10, the insertion and guiding work of the woodwork component 1 can be performed smoothly and reliably without wobbling.

In this way, when the woodwork part 1 is inserted into the guide material 10 and guided and moved to a predetermined position on the processing table 2, the front end 1b of the woodwork part 1 presses the detection bar 18 and supports the rotating shaft 19. The limit switch LS is turned on because it is rotated within the tube section 21 and the push rod 20 is moved downward.

As a second step, when the limit switch LSI is turned on, the solenoid valve V1 of the component holding mechanism section 4 is opened, and compressed air is introduced into the cylinder CL, thereby extending the cylinder rod CR. Thus, the cylinder
The woodwork part 1 is moved by the press plate 3 fixed to the lower end of the rod CR.
is securely pressed and fixed at a predetermined position on the processing table 2 from above.

As a third step, at the same time that the wooden component 1 is pressed and fixed by the push plate 3 in the above step, the locking part 23 provided at the upper end of the lifting rod 22 erected on one side of the push plate 3 is Since the limit switch L S z is turned on by pressing, the motor M+ rotates forward, and the pulley 40 and timing belt 41
, the screw rod 37 is rotated via a power transmission component such as a boolean IJ38. Therefore, screw rod 3
The lifting frame 45 having a nut material (not shown) inside which is screwed into the lifting frame 45 and the rectangular drill unit 6 fixed to the lifting frame 45 are guided by the guide rods 42 and 42 without wobbling. It descends smoothly and drills a square hole 5 at a predetermined position in the woodwork part 1.

At this time, at the same time as the square drill unit 6 is lowered, the switch knob is pressed by the cam plate 46 provided on one side of the lifting frame 45, the middle limit switch LS3 is turned on, and then the square drill unit 6 continues to fall until the upper limit switch LS4 is pressed by the bulge 46a and turned on.

Then, when the upper limit switch LS4 is turned on,
The normal rotation signal to the motor M is cut off, and a signal is sent from the timer T for a specified time, so the motor M1 rotates in the reverse direction, and the square drill unit 6 rises to drill into the woodwork part 1 (1). It is pulled out from the square hole 5 (second time).

By the way, the wooden part 1 has a square hole 5 instead of the usual round hole.
The reason for this is that the square drill unit 6 of this embodiment has a fixed square hole 5 on the outside and a rotary blade 2 on the inside.
First, a circular hole is drilled in the woodwork part 1 by rotating the rotary blade 27 located inside with the motor M2 as a drive source, and at the same time, this circular hole is This is because the remaining thickness remaining around the hole is cut by applying pressure from the fixed (non-rotating) square blade 26 located outside.

In the above operation, when the predetermined time set by the timer T has elapsed, the motor M rotates normally again, so the square drill unit 6 descends until the lower limit switch L S For the second time), a square hole 5 is drilled at the same location and the finished product is adjusted to the predetermined size and shape.

In this case, the lower limit switch LS5 is installed at a position pushed by the cam plate 46, corresponding to the position where the square hole 5 of the required depth is bored.

After that, the lower limit switch LSS is connected to the cam plate 46.
When pressed and turned on, motor M is turned on.

is reversed, so the screw rod 37 is reversed, and the square drill unit 6 is raised and removed from the woodwork part 1 again.
It is pulled out and finished into a specified size and shape.

And the middle limit switch LS, l is the cam plate 46
When the pressure is released and the motor M is turned off, the motor M stops, and the drilling operation of the square hole 5 is completed, resulting in a highly accurate finish.

As a fourth step, when the middle limit switch L S 3 is turned off, the solenoid valve v2 is opened and compressed air is force-fed to the cylinder CL 2 of the groove opening mechanism section 9 .

As a result, the cylinder rod 48 is extended, so that the motor M3 serving as a driving source and the rotary saw 9a rotationally driven by the motor M3 move forward integrally with respect to the woodworking part 1 while rotating, and are removed in the previous process. A flat, perpendicular horizontal groove 8 is provided in a square hole 5 drilled in a woodwork component 1.

At this time, at the forward position of the motor M3, a limit switch LS6 is provided oppositely so as to correspond to the installed length of the groove 8.
By colliding with the switch knob of switch S6, limit switch LS6 is turned on, solenoid valve V2, which had been open, is closed, and air is removed from cylinder CL.

At the same time, compressed air is supplied to the interior of the opposite side of the cylinder CL2, so that the cylinder rod 48 is retracted, and the motor M3 and the rotary saw 9a are moved back together.

In this way, while the rotary saw 9a is being retreated, the limit switch LSI installed opposite to the back side of the processing table 2 is activated.
! , LS, by a sliding piece 52 protruding from the side surface of the base 49 on which the rotary saw 9a and the motor M3 are attached.
Since it is kept pressed and turned on, during this time another solenoid valve V is opened and compressed air is blown out from the nozzle 50. Chips and cutting waste generated when opening the groove 8 in the direction are blown away.

After that, the motor M3 and the rotary saw 9a move backward and collide with the switch knob of the limit switch LSヮ, which turns on the limit switch LS7, and the motor M3
At the same time as the rotation of the cylinder CL stops, compressed air is removed from the cylinder CL of the component holding mechanism 4, and the cylinder/rod C
Since R contracts and rises, the fixation of the press plate 3 to the woodwork component 1 is released.

In this way, a square hole 5 is formed in the woodwork part 1, and this square hole 5 is
After machining the mounting hole consisting of the groove 8 and the groove 8 provided at right angles, the woodwork component 1 is pulled out from the processing table 2 and the limit switch LS for starting is removed.

is turned off and the entire process ends.

From the second machining, the woodwork part 1 to be machined is again inserted into the guide material 10, the limit switch LSI is turned on, and the above-mentioned steps are repeated to machine the mounting hole in the woodwork part 1. .

In addition, in the above explanation, since the woodworking part 1 is linear,
Although the case where the square hole 5 and the groove 8 perpendicular to the plane are formed is explained, this is not limited to this case, and even when the wooden part 1 is curved, the square hole 5 and the groove perpendicular to the plane are formed at the joint end. 8 can be established. Also, if a normal round rotary drill is used for the hole drilling mechanism 7 instead of the square drill unit 6,
A round hole can be bored in the woodwork part 1.

Moreover, in the specified invention and the second invention, the square hole 5
When drilling into the woodwork part 1, the square drill unit 6 is raised and lowered twice on the woodwork part 1.
Two square holes 5 are drilled in the wood component 1, but the machining position of the wood component 1 is moved in the horizontal direction with respect to the square drill unit 6 each time the square drill unit 6 descends. Multiple square holes 5 in one woodwork part 1
Needless to say, it is possible to drill.

Furthermore, by preparing rotary saws 9a with different diameters and attaching them to the rotary shaft 55, the depth of the groove 8 to be made in the woodwork component 1 can be adjusted. Moreover, the reciprocating distance of the cylinder rod 48, that is, the limit switch L
Sb, L S? It goes without saying that the length of the groove 8 to be machined can be adjusted by increasing or decreasing the installation distance.

[Effects of the specified invention and the second invention] As described above, the specified invention and the second invention employ electrical control, for example sequence control, and furthermore, provide a drill that is rotatable and movable up and down relative to woodworking parts. is installed above the processing table, and a rotary saw that rotates reciprocally in a horizontal direction perpendicular to the direction in which the drill advances is installed. Grooves can be drilled automatically and accurately at right angles, which greatly improves work efficiency compared to manual work, and reduces product costs.

[Brief explanation of drawings]

Fig. 1 is a front view showing one embodiment of the specified invention, Fig. 2 is an explanatory rear view, Fig. 3 is an explanatory plan view, Fig. 4 is a perspective view of the main parts, and Fig. 5 is an explanatory rear view. FIG. 6 is a plan view of a state in which a square hole is drilled in a woodwork component using the mounting hole processing machine of the specified invention of the present application, FIG. Fig. 8 is a longitudinal sectional view of , and Fig. 8 is a perspective view of the wooden parts bonded to each other using an adhesive reinforcing band. DESCRIPTION OF SYMBOLS 1... Woodworking parts, 1a... Joint end, 2... Processing stand, 3... Press plate, 4... Component holding mechanism part, 5... Square hole, 6... Square drill・Unit, 7... Hole opening mechanism section, 8... Groove, 9... Groove opening mechanism section, 9a...
・Rotary saw, 10... Guide material, 17... Stopper,
18... Detection bar, 22... Lifting rod, 24... Fixed frame, 26... Square blade, 27... Rotating blade, 37...
・Screw rod, 43...Switch means, 46・
...Cam plate, 49...Base, 51...Blowout means, M
+, M2, M3...Motor, LSI, LS
2. LS3, LS4, LSs, LS6, LS
7...Limit switch, V,, V2, V3.
...Solenoid valve, T...timer. Patent applicant Sunkit ISa Co., Ltd. Figure 5 Figure 6

Claims (2)

[Claims] (1) When the woodwork part is moved to a predetermined position on the processing table, it is moved up and down by the driving force of a descending cylinder, and a push plate is installed on the tip of the cylinder's rod to press and fix the woodwork part. a part holding mechanism section, a hole opening mechanism section equipped with a drill that drills a hole of a required depth by rotatably moving up and down in the woodwork component, and a hole opening mechanism section that is rotatable in a plane and in a direction perpendicular to the hole; A mounting hole processing machine for adhesive reinforcing bands in woodworking parts, which comprises a groove opening mechanism section equipped with a rotary saw that reciprocates at the same time. (2) As a first step, the woodworking component is moved to a predetermined position on the processing table, and this is detected by the first switch means, and as a second step, the cylinder of the component holding mechanism is lowered by turning on the switch means. The wooden part is pressed and fixed by a push plate installed on the rod of the cylinder, and as a third step, the second switch means detects that the wooden part is fixed and lowers the drill rotatably. An adhesive reinforcing band for a woodwork part, characterized in that a hole is drilled in the woodwork part, and as a fourth step, a rotary saw is moved back and forth while rotating to create a groove in the woodwork part that is flat and perpendicular to the hole. Mounting hole machining method.