JPH0626785B2 - Warp material surface finishing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a wood cutting device, including a warp member,
The present invention relates to a surface finishing device for a warp material having a function of appropriately cutting the surface.

<Prior Art> In a conventional surface finishing device such as a wide belt sander machine, if a warp material is applied to a uniform material feeding passage, only the curved end is excessively scraped or feeding becomes impossible. Therefore, in the surface finishing of the warp material, before and after the grinding device, the material-feeding rolls arranged along the material-feeding path are manually moved to form a curved shape along the warp material in the material-feeding path. Had formed. However, this adjusting means requires skill, and since the bending diameter is different for each warp member, adjustment is required each time, which is extremely inefficient.

It is an object of the present invention to provide a surface finishing device for a warp material, which is adapted to a warp material by adjusting a material-sending roll and can be efficiently and favorably adjusted.

<Means for Solving Problems> The present invention provides a plurality of material-sending rolls which are provided in front of and behind a grinding device and define a material-sending path, which are movable in a direction orthogonal to the material-sending direction. A position to measure the distance from the reference position with a movement motor that controls the movement of the roll, a counter that counts the amount of movement of the material feeding roll, and a mounting table for the warped material, with the detection end touching the surface of the warped material. On the basis of the distance measuring by the curved copying device of the warp member configured by disposing the measuring device on the mounting table and the position measuring device of the curved copying device, the movement amount of each material feeding roll is calculated. An arithmetic unit for indexing, and a drive control means for setting the index value from the arithmetic unit in a counter, driving the moving motor, and stopping the moving motor by a count value digestion signal of the counter. Is.

<Operation> The warp member is placed on the mounting table of the curve copying device, the detection end of the position measuring device is brought into contact with the warp member, and the distance from each reference position is measured.

Then, based on this measured value, a calculation device calculates, the calculated value is set in a counter, the moving motor is driven, and the material feeding roll is moved until the counter consumes the counted value.

As a result, the running material passage defined by the material feeding roll becomes a curved passage similar to the shape of the warp material.

When the warp material is supplied to the running material passage after such position adjustment, the running material roll travels and the required surface is ground by the grinding device.

<Example> The configuration of a wide belt sander machine A to which the present invention is applied will be described.

Referring to FIGS. 1 and 2, 1 is a lower frame, a pressure receiving plate 2 is supported at the center of the upper part thereof, and three material feeding rollers 3a to 3c and 3d to 3f are respectively raised and lowered at the front and rear positions thereof. Is supported by means of each of the above, and each material feeding edge is arranged in a predetermined manner, and an upper portion thereof serves as a material feeding passage 4. The material feeding rollers 3a to
3f is connected to the counter C _8, may be controlled by the later-described central control unit CPU, the driving motor M ₀ interlocked via a chain (not shown), the warp material supplied onto the Okuzai passage 4 By contacting the lower surface of w, a material feeding force is applied to the warped material w.

Next, an elevating mechanism for the material feeding rollers 3a to 3f will be described. As shown in FIG. 4, the material feeding rollers 3a to 3f are respectively supported by the shaft supporting frame 5, and the elevating screws 7, 7 held on the lower frame 1 side are screwed to the lower part of the shaft supporting frame 5, Further, the horizontal transfer driving screw shaft 9 driven by the moving motors M _{1 to} M ₆ is engaged with the elevating screws 7 and 7 via the worm gears 8 and 8 to perform the elevating adjustment.

A vertical frame 10 is supported on the lower frame 1.

It said longitudinal frame 10, a cylinder on top is upwardly biased by a spring or the like, and sanding steering and drive traveling rolls 12 of tension also serves to drive the motor M _s is disposed vertically movably. Further, a tread pressure pad device 14 and traveling rolls 13 and 13 are arranged immediately below the traveling roll 12, and endless sanding belts 15 are stretched over each roll and the tread pressure pad device 14 to form the tread pressure pad. A grinding device 11 having a lower surface of the device 14 as a grinding portion is configured.

As shown in FIGS. 1 and 3, a pair of pressing rolls 20a and 20b are provided on both sides of the grinding device 11 just above the material feeding rollers 3a, 3b, 3e and 3f. Each pressing roll 20a, 20b is provided with a biasing device 21a, 21b.
Are urged toward the material feeding passage 4 side by
The pressing rolls 20a and 20b are connected by a shaft 23 via links 22a and 22b. Further, a connecting rod 24 having inner ends pivotally supported by a supporting shaft 25 is passed over both sides of the pressing rolls 20a and 20b to support the shaft 23 at the center of the connecting rod 24 and to connect the outside of the connecting rod 24. Link the end 26
And the like, and is continuously connected to the moving motor M ₇ . Therefore, when the moving motor M ₇ is driven, the connecting rod 24 tilts about the support shaft 25, and as the shaft 23 moves up and down,
The shaft connection 1 of the pressure rolls 20a and 20b is tilted outward.

In addition, auxiliary tables 27a and 27b are supported in front of and behind the lower frame 1. This auxiliary table 2
7a and 27b are connected to the material feeding rollers 3a and 3f, respectively, and can be tilted about a support shaft 28.

In the above configuration, when applying the warp material, previously, based on the measurements from the curved copying apparatus B, and the lift adjustment by driving the moving motor M ₁ ~M ₆ the Okuzai roller 3a~3f , The material feeding passage 4 so as to conform to the shape of the warp material w
To fix.

As shown in FIGS. 5 and 6, the bending copying apparatus B supports a mounting table 30 on which a warp member w is mounted by a support column 31, and measures six positions on a support frame 32 standing upright from the right side portion thereof. The devices 33a to 33f are supported at equal intervals in the front-rear direction.

The structure of the position measuring devices 33a to 33f will be described with reference to FIG. 6. An air cylinder 34 is vertically fixed to the support frame 32, and a mounting member 35 is fixed to the tip of the rod of the cylinder 34. . A detection end 37 is externally fitted to the lower portion of the mounting member 35 via a spring 36, and is connected by a spring pin 38. A proximity switch 39 is supported by the mounting member 35 and faces a shield plate 40 protruding from the detection end 37. Furthermore, the mounting member 35 is also connected to the rod 42 of the detection cylinder 41 supported outside the support frame 32.

In such a configuration, the warp member w is mounted on the mounting table 30, the air cylinder 34 of each of the position measuring devices 33a to 33f is driven, the detection end 37 is brought into contact with the upper surface of the warp member w, and the spring is further stretched. Against 36, the shield plate 40 is replaced by the proximity switch 39
When it comes close to the side, the proximity switch 39 is turned on.
Therefore, the extension amount of the rod 42 of the detection cylinder 41 is counted by a mechanism (not shown), and is counted up when the proximity switch 39 is turned on to determine the extension amount. Thus, by detecting the extension amount of the rod 42 of the detection cylinder 41 from the contracted position to the stop position, the height from the mounting table 30 at the predetermined point position where the detection end 37 of the warped material w abuts is detected. To be done.

Air cylinder 34 of each position measuring device 33a-33f
The drive of is uniformly controlled by the air source 43 fixed to the lower part of the mounting table 30.

Height detected by the position measuring device 33a~33f is calculated by the central control unit CPU, it occurs the drive of the moving motor _M 1 ~M _6, is made as the position adjustment of Okuzai rollers 3a to 3f.

The adjusting mechanism will be described with reference to FIG.

The drive shafts of the respective drive motors M _{1 to} M ₆ have detectors K ₁ to
K ₆ is arranged.該検child _K 1 ~K ₆ is connected to a respective counter _C 1 -C _6, has a function of sending a signal to the counter _C 1 -C ₆ per passage of the slit of the slit plate f. Therefore, the counters C _{1 to} C ₆ can detect the movement amounts of the material feeding rollers 3 a to 3 f. Each counter _C 1 -C ₆ and the position measuring device 33a~33f is connected to a central control unit CPU (processing unit), based on the extension of the rod 42 of the detection tube 41 shown in FIG. 5, the counter C _The count value from _{1 to} C ₆ is calculated and set.

Various calculation means have been proposed and include the following.

I) A position measuring device 33x corresponding to the grinding portion of the wide belt sander machine A is arranged on the warping member w of the curved copying apparatus B at the center position where the warping member w contacts the mounting table 30.
Further, the position measuring devices 33 having intervals and numbers equal to the distances corresponding to the distances of the material feeding rollers 3a to 3f from the grinding portion.
a to 33f are arranged.

Then, since the thickness t of the warped material w is measured by the position measuring device 33x, the movement amount of each of the material feeding rollers 3a to 3f is made equal to the movement amount of the position measuring devices 33a to 33f by the central control unit CPU. It is assumed that there is a difference in the thickness t of the warp member w, and the numerical values corresponding to this are the counters C _{1 to} C _6.
To enter.

That is, as shown in FIG. 8A, when the measurement value by the position measuring device 33x is s ₁ (t), for example, the measurement value by the position measuring device 33a is s ₂ , the movement amount s of the material feeding roller 6 from the reference value is s. ₃ is a _s 2 _-s 1 = _{s 3.}

The counter values corresponding to this movement amount s ₃ are counters C ₁ to C.
₆ and drives each of the moving motors M _{1 to} M ₆ . Then, when the counters C _{1 to} C ₆ count up, the movement motors M _{1 to} M ₆ are stopped accordingly, and the positioning of the material feeding rollers 3a to 3f is completed.

In this computing means, as shown in FIG.
It is also possible to measure with the curve set to the upper curved position.

That is, when the measurement value s ₁ of the position measuring device 33x and the measurement value s ₂ of the position measuring device 33a are s ₂ , the material feeding roller 6
The movement amount s ₃ from the reference value of is s ₂ −s ₁ = s ₃ (negative value).

Therefore, in this means, either the front side or the back side of the warp material w may be selected as long as its absolute value is the detected value. In addition, due to variations in the thickness of the warp material w,
The measured values are slightly different, but it does not matter.

Further, since the thickness of the warp member w is detected by the position measuring device 33x, it is possible to set the amount of elevation of the vertical frame 10 based on this value and the grinding thickness.

Since the warp member w can be considered to be symmetrical on the left and right of the position measuring device 33x, only the position measuring devices 33a to 33c (33d to 33f) are arranged on one side, and for example, the position measuring device 33a. Counter C ₁ , according to the information of
The left and right control mechanisms may be shared, such as driving C ₆ .

II) In the above-mentioned means I, since the position measuring device 33x detects the thickness of the warped member w, the position measuring device 3x can be detected by detecting this with a separate thickness detecting means.
3x can be removed.

However, in this means, since the reference value is not detected, it is not possible to perform measurement with the outer curve facing up as shown in FIG. 8B.

III) The radius R of the warped member w can be obtained and calculated from the measured value. That is, as shown in FIG. 9A, the center of the warp w is detected by the position measuring device 33x installed on the mounting table 30, and the distance L from the position measuring device 33x is detected.
If the height difference H from the position measuring device 33g at the position is obtained, R = (H ² + L ² ) / 2H, and the radius R of the warp w can be obtained. Then, the radius R makes it possible to back-calculate the amount of movement of the material feeding rollers 3a to 3f whose distance from the grinding portion is specified. Alternatively, the amount of movement may be obtained from prestored data based on the values of the radius R and the interval L.

In the measurement of the radius R, the warp w is rarely a regular arc in practice. Therefore, each position measuring device 33
When the radius R is calculated from the values of a to 33f (see FIG. 8) and the position measuring device 33x, the calculated values may differ. In this case, the radius R is determined by the average value thereof, or the deviation value data of each warp member w is determined in advance and numerical correction is performed.

As another means for obtaining the radius R, as shown in FIG. 9B, the total length L of the warp w is obtained in advance, and the maximum height H of the warp w from the loading platform 30 on the inner bay surface is measured by position measurement. Device 3
And values from 3h, determined from the plate thickness ^{t, R = (H 2 +} L 2/4) / 2H from can be determined the radius R.

When the material feeding rollers 3a to 3f are positioned by the various calculating means described above, the pressing roll 20 follows the positioning.
It is necessary to move a and 20b by the moving motor M ₇ . Therefore, in order to determine the amount of movement of the moving motor M ₇ , the position measuring device 33y is arranged in the curve copying device B by approximating the connecting position of the connecting rod 24 with the link 26 (see FIG. 7). based on the movement amount from the multiply the platform 30 of the position measuring device 33y, each unit I~III described above, sets the count value of the counter C _7, and controls the movement of the moving motor M _7.

As a result, the connecting rod 2 is inclined and the pressing rolls 20a,
The shaft connection l of 20b is given a required inclination as shown by the arrow in FIG.

Incidentally, in this means, the pressing rolls 20a, 20b are not accurately positioned in correspondence with the material feeding auras 3b, 3c immediately thereunder, but the urging devices 21a, 21b.
Is always in pressure contact with the material feeding rollers 3b and 3c, and
Since the warp material w is pressed while retreating upward in response to the supply of the warp material w, the position setting does not require strictness. When the curvature of the warp member w is not so large, the pressing roll 20a by the urging device 21a is used.
The curved surface can also be absorbed by the retreat (the chain line in FIG. 3).

The setting value of the counter C ₇ is separately set in the position measuring device 33.
Instead of providing y, calculation may be performed based on the detected value of the position measuring device 33a or 33b. Also,
The biasing devices 21a and 21b may be driven differently so as to follow the movement of the material feeding rollers 3a and 3b.

After such positioning, when the warp material w is supplied from the auxiliary table 30 to the material feeding passage 4 and a material feeding force is applied by the material feeding rollers 3a to 3f, the grinding device 11 causes the grinding portion and the pressure receiving plate 2 to move. Grinding with a predetermined thickness defined by the interval is performed.

The wide belt sander machine A is of a top-grinding type and therefore suitable for grinding the inner surface of the warp w, but to grind the outer surface of the warp w, a grinding device is used. 11 and the vertical positional relationship between the material feeding rollers 3a to 3f,
It is sufficient to use a lower surface grinding type in which the grinding portion such as the treading pad device 14 is located below the material feeding passage 4.

<Effects of the Invention> As described above, the present invention is designed to automatically and optimally set the material feeding passage in accordance with the curvature of the warp member w, so that the finish grinding of the warp member w can be performed efficiently and efficiently. It has excellent effects such as good application.

[Brief description of drawings]

The attached drawings show an embodiment of the present invention. FIG. 1 is a side view of a wide belt sander machine A, FIG. 2 is a front view of the same, FIG. 3 is a partially enlarged cutaway side view, and FIG. Material rollers 3a-3
f is a vertical cross-sectional front view showing an elevating mechanism, FIG. 5 is a side view of the curve copying device B, FIG. 6 is a vertical cross-sectional side view of essential parts of the position measuring devices 33a to 33f, FIG. 7 is a connection block diagram, and FIG. Figure a,
B is a side view showing an example of the calculating means, and FIGS. 9A and 9B are side views of the other example. A: Wide belt sander machine, B: Curved copying device, 3a
3f; material feeding roller, 4; material feeding passage, 11; grinding device,
30; loading platform, 33a to 33h, 33x, 33y; position measuring device, M _{1 to} M ₇ ; moving motor, C _{1 to} C ₇ ; counter, CPU; central control device

Claims (4)

[Claims] 1. A plurality of material-sending rolls provided in front of and behind the grinding device to define a material-sending path and movable in a direction orthogonal to the material-sending direction; and a moving motor for controlling the movement of the material-sending roller. A position measuring device equipped with a counter for counting the amount of movement of the material-sending rolls and a mount for the warped material, and a measurement end that abuts the detection end on the surface of the warped material and measures the distance from the reference position is mounted on the mount. And a computing device for calculating the movement amount of each material-feeding roll based on the distance measured by each position measuring device of the bending-profiling device. And a drive control means for setting the index value on the counter, driving the moving motor, and stopping the moving motor in response to the count value consumption signal of the counter. 2. The grinding device comprises an endless sanding belt which is stretched over a tread pad device and a traveling roll group which are located on the side of the material feeding passage. Surface finishing device for the warp material described. 3. A curved copying device for a warp member is constituted by arranging a plurality of position measuring devices in line on a mounting table along one direction in accordance with the number and intervals of material feeding rolls. The arithmetic device is adapted to determine the amount of movement of each material-feeding roll from the plane reference value based on the distance measured by each position measuring device of the bending copying device. Surface finishing device for the warp material described. 4. An arithmetic unit calculates a bending diameter of a warp member based on a distance measured by each position measuring unit of the bending copying apparatus, and calculates a movement amount from a plane reference value of each material feeding roll from the bending diameter. The surface finishing device for the warpage member according to claim 1, wherein the surface finishing device is provided.