JP3284051B2 - Constant load and constant extension applying device for belt measuring machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for applying a constant load and a constant extension in a belt measuring machine, and more particularly, to a length of a belt having a cord or a belt having no cord,
The present invention relates to a constant load and constant extension applying device for a belt measuring machine capable of selectively applying a constant load mode and a constant extension mode to a belt when measuring a width, a thickness, a warpage, a load applied to a belt, and the like.

[0002]

2. Description of the Related Art As a conventional belt measuring device, a V-belt inspection device is mainly known.
No. 56620. This means that after a V-belt is hung on a movable drive pulley and a driven pulley,
After the distance between the shafts of the driving pulley and the driven pulley is measured while applying a predetermined tension to travel, if the measured value is outside the set range, the side surface of the belt is polished.

In order to measure the dimensions of a conventional flat belt having a core, a flat belt having a core is hung on a conventionally fixed driving pulley and a movable driven pulley.
After applying a certain load to the driven pulley side and rotating the flat belt several times, the distance between the drive shaft and the driven shaft was measured, and if the distance between the shafts was within a predetermined range, the product was judged as acceptable. on the other hand,
In the case of measuring a flat belt having no cords, the distance between the drive shaft and the driven shaft is measured after applying a constant extension instead of a constant load by moving the driven pulley.

[0004]

However, when measuring the dimensions of a conventional flat belt, the distance between the driving shaft and the driven shaft is at most the distance between the shafts. In recent dimensional measurements of thin flat belts without core wires, it has become impossible to maintain a certain level of quality without measuring not only the distance between shafts but also width, thickness, warpage, and the like. In addition, when a flat belt having a core and a flat belt having no core are mixed, a constant load is applied to the flat belt having the core, and a constant extension is applied to the flat belt having no core. The measurement conditions must be applied to the belt, and the measurement conditions differ depending on the belt, so that two types of measuring machines have to be installed.

The present invention has been made to solve such a problem, and it is possible to selectively apply a constant load or a constant elongation to the belt when measuring the length, width, thickness, warpage, load applied to the belt, and the like. It is an object of the present invention to provide a constant load and constant elongation applying device in a belt measuring machine which can be applied to a belt.

[0006]

That is, the present invention selectively applies a constant load or a constant elongation to a belt suspended between a fixed pulley and a movable pulley so as to selectively control the length, width, thickness, warpage, and the like of the belt. A constant load and constant extension device in a belt measuring machine that measures the load applied to the belt, etc., equipped with a mechanism that swings in a seesaw shape about the support shaft, and adjusts the position of the moving load section that slides on the shaft By applying a predetermined load to the moving pulley via the connecting member, or by pulling or pulling back the connecting member between the load adjusting portion and the moving pulley, and a load adjusting portion for interrupting the application of a load to the moving pulley. In this case, there is provided a constant-load and constant-stretching device in a belt measuring machine which comprises a pulley extending portion capable of setting the amount of movement of the pulley, and which are connected in series.

[0007] The present invention also relates to a moving pulley in which a load is applied to the moving pulley in a direction opposite to the direction of the load applied by the load adjusting unit, or in which the load adjusting unit slides on the shaft by a motor. And a load fixing cylinder that blocks the load on the connecting member, and a stopper plate that stops swinging, and a pulley extension that allows the reel around which the connecting member is wound to be movable in a certain direction. Includes the case where the amount of movement can be adjusted.

[0008]

According to the present invention, the position of the moving load portion is adjusted to swing the load adjusting portion in a seesaw shape, and a constant load can be applied to the belt by the connecting member. After stopping the transmission of load to the connecting member by operating the cylinder and bringing the tip of the shaft into contact with the stopper plate, the reel of the pulley extension is moved and the connecting member is pulled to apply constant extension to the belt. it can. The reason why the measurement conditions can be selectively given by the same device is that the moving pulley, the pulley extension unit, and the load adjustment unit are connected in series via the connection member. In addition, since the load in the direction opposite to the direction of the load applied by the load adjustment unit is applied to the moving pulley, after measurement,
When the position of the moving load section of the load adjusting section returns to the original position, the moving pulley also automatically returns to the start position, thereby facilitating the start of measurement.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view of a belt measuring machine provided with a constant load and constant extension applying device according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is another direction of FIG. FIG. 4 is an enlarged view of the movable pulley, and FIG. 5 is a view seen from the AA direction in FIG. According to this, the belt measuring machine 1
Is a belt attaching portion 2 having a fixed pulley 10 and a moving pulley 11, and a load adjusting portion 3 which is connected to the moving pulley by a connecting member and can adjustably apply a predetermined load.
A pulley extension 4 that can arbitrarily set the amount of movement of the pulley by pulling or pulling back the connection member; and sensors 5 that can measure the length, width, thickness, warpage, load, and the like of the belt, respectively. , 6, 7,
8 and 19. The constant load / constant extension applying device according to the present invention includes the moving pulley 11, the pulley extension unit 4, and the load adjustment unit 3 connected in series via a connecting member.

[0010] The belt mounting section 2 is a section where the measuring belt 9 is run around a pulley, and has a fixed pulley 10 as a driving pulley and a movable pulley 11 as a driven pulley, as shown in detail in FIG. And the fixed pulley 10 is
2 attached to the end of the rotating shaft 13 supported by
From the transmission belt 15 which is a toothed belt. The movable pulley 11 is attached to a slide member 17 that slides on a guide rail 16 arranged in a vertical direction,
The opening / closing plate 18 and the load cell 19 are integrated.

The opening / closing plate 18 is effective for the movable pulley 11 to avoid cantilever. This opening / closing plate 18 is
When pulling back the knob 21 provided at the center of 0,
The engagement of the lock portion 22 having the uneven engagement structure is released, the door 20 can be turned over to open the entrance, and the measurement belt 9 can be mounted. The lock portion 22 includes a concave portion 24 having a plurality of grooves 23 on a shaft connected to the knob portion 21, and a fixed convex portion 27 engaged with the groove portion 23. When the door 20 is pushed in and closed after the measurement belt 9 is mounted, the movable pulley 11 is stably supported by both shafts.

The movable pulley 11 is connected to the load adjusting section 3 via the pulley extending section 4 by one flexible connecting member 25 such as an aramid fiber cord or a wire as described later. It can be moved downward, and can also be moved upward by being connected to another connecting member 25 having a balance weight 26 for applying a load in the opposite direction. When the load balance is lost due to the operation of the load adjusting unit 3, the movable pulley 11 moves upward and returns to the initial position.

As shown in detail in FIGS. 1 and 5, the load adjusting section 3 includes a ball screw 31 in which a moving table 30 is fitted.
A slide bar 33 in which a support table 32 mechanically connected to the transfer table 30 is inserted, and a guide rod 34 are respectively arranged in parallel, and a weight 35 is placed on the transfer table 30 and the support table 32 while the weight 35 is placed on the slide table 33 and the support table 32. The load unit 36 is installed, and the moving load unit 36 slides on the shaft by rotation of the motor 38 via the ball screw 31 and the coupling 37. on the other hand,
The ball screw 31, the slide bar 33, and the guide bar 34 are integrally fixed to a support shaft 40 inserted into a bearing 39, and swing about the support shaft 40 like a seesaw according to the position of the moving load portion 36. I do.

The tip member 41 of the ball screw 31 is provided with a stopper plate 42 for connecting to the connection member 25 and blocking a load on the connection member 25, and a load fixing cylinder 43. That is, the load fixing cylinder 43 is operated to bring the rod 44 into contact with the distal end member 41, and the distal end member 41 is brought into contact with the stopper plate 42 to interrupt the load transmitted to the connection member 25.

The pulley extension 4 is shown in FIGS.
The reel 45 around which the connecting member 25 is wound is
The ball screw 47 is moved on the axis by a slide member 49 inserted into a slide bar 48 arranged in parallel with the ball screw 47 to support the reel 45. By moving the reel 45 up and down, the connection member 2
5 can be pulled or pulled back, whereby the moving amount of the moving pulley 11 can be set arbitrarily.

The one connecting member 25 is shown in FIGS.
As shown in FIG.
Reel 45 of pulley extension section 4 via three reels 51
To the tip member 41 of the ball screw 31 of the load adjusting section 3. The other connecting member 25 is , as shown in FIG.
And is connected to the balance weight 26 at a lower position from the movable pulley 11 via two reels 51 disposed at the uppermost position. The movable pulley 11 balances the weight received from the load adjusting section 3 and the load in the opposite direction with the balance weight 26.
When the weight received from the load adjustment unit 3 is reduced and the balance is lost, the unit moves upward.

Next, the operation of the constant load / constant stretching device of the present invention will be described. When a constant load is applied to the measuring belt 9, the load adjusting unit 3 mainly operates. When the moving load unit 36 slides on the shaft by the rotation of the motor 38 and reaches a predetermined position, the load adjusting unit 3 swings like a seesaw and pulls the connecting member 25 to apply a target load to the measuring belt 9. You can call. When the load applied to the measuring belt 9 is removed, when the moving load unit 36 is returned to the start position, the weight received from the load adjusting unit 3 of the moving pulley 11 becomes smaller than the balance weight 26, and the balance is lost. 11 moves upward.

On the other hand, when a constant elongation is applied to the measuring belt 9, the load fixing cylinder 43 of the load adjusting section 3 is operated to bring the rod 44 into contact with the tip member 41, and at the same time, the tip member 41 is stopped by the stopper. The load transmitted to the connection member 25 is cut off by contacting the plate 42. In this state, the reel 45 around which the connecting member 25 of the pulley extension unit 4 is wound is moved on the axis of the ball screw 47 by the motor 46, and the moving amount of the pulley 11 is set by pulling or pulling back the connecting member 25.

When the extension applied to the measuring belt 9 is removed, the rod 44 of the load fixing cylinder 43 is retracted and the tip member 41 is opened, and the balance of the vertical pulling force applied to the movable pulley 11 is reversed. , The moving pulley 11 moves upward. These measurement conditions can be arbitrarily selected with the same apparatus. This is a moving pulley 1
1, since the pulley extending portion 4 and the load adjusting portion 3 are connected in series via the connecting member 25, such an operation can be arbitrarily selected.

[0020]

As described above, according to the present invention, the position of the moving load portion is adjusted, the load adjusting portion is swung in a seesaw shape, and a constant load is applied to the belt via the connecting member. After the transmission of force to the connecting member is interrupted by activating the load fixing cylinder provided in and making the tip of the shaft abut against the stopper plate, the reel of the pulley extension is moved to pull the connecting member. A constant elongation can be imparted to the belt, and the moving pulley, the pulley elongation part, and the load adjustment part are connected in series via a connecting member.
The effect is that the measurement conditions can be selectively applied by the same device, and the moving pulley is given a load in the direction opposite to the direction of the load given by the load adjusting unit. When the position of the load portion is returned to the original position, the moving pulley can be automatically returned to the start position, and there is also an effect that the measurement can be easily restarted.

[Brief description of the drawings]

FIG. 1 is a front view of a constant load and constant extension applying device in a belt measuring machine according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view in another direction of FIG. 1;

FIG. 4 is an enlarged view near a moving pulley.

FIG. 5 is a diagram viewed from the AA direction in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Belt measuring machine 2 Belt attachment part 3 Load adjustment part 4 Pulley extension part 9 Measurement belt 10 Fixed pulley 11 Moving pulley 25 Connection member 36 Moving load part 43 Load fixing cylinder 45 Reel

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G01M 13/02 G01B 5/00 G01B 21/02

Claims (4)

(57) [Claims] 1. A belt inspection for selectively applying a constant load or a constant elongation to a belt suspended between a fixed pulley and a movable pulley to measure the length, width, thickness, warpage, load applied to the belt, and the like. In the constant load and constant extension applying device in the measuring machine, a mechanism for swinging in a seesaw shape around the support shaft is provided, and a predetermined load is adjusted by adjusting the position of the moving load portion that slides on the shaft. A load adjuster that applies a force to the movable pulley or blocks a load applied to the movable pulley, and sets a movement amount of the pulley by pulling or pulling back a connecting member between the load adjuster and the movable pulley. Constant-load and constant-strength imparting device in a belt measuring machine, comprising a pulley extending portion capable of being connected in series. 2. The belt measuring device according to claim 1, wherein a load is applied to the movable pulley in a direction opposite to a direction of the load applied by the load adjusting unit. 3. The load adjusting section comprises a moving load section that slides on a shaft by a motor, a load fixing cylinder that blocks a load on a connecting member, and a stopper plate that stops swinging. 3. The belt measuring device according to 2. 4. The belt measuring scale according to claim 1, wherein the pulley extending portion allows the reel around which the connection member is wound to be movable in a predetermined direction so that the amount of movement of the movable pulley can be adjusted. apparatus.