JPS60242114A - Conveyor - Google Patents

Abstract

PURPOSE:To reduce the necessary mechanical space and increase transportation amount and improve durability by arranging a cam follower and a cam so that a scraper is brought-down after passing a discharge-side sprocket and is erected in the turning-on side sprocket part, in a chip conveyor. CONSTITUTION:When a scraper 8 reaches directly over a driving sprocket wheel 2 on a discharge-port side, the extension part 30 of the scraper 8 is engaged with a cam 27, and the scraper 8 turns counterclockwise around a pin 20 as a chain 7 advances, and the scraper 8 is directed in the direction of laying of the chain in the D part of the cam 27, and is inserted between a scraper guide 29 and a casing 1 side plate, and shifts along the guide 29. On the other sprocket wheel 3 side, the scraper 8 turns around the pin 20 through the engagement between a cam follower and the cam, and the scraper 8 is erected. With such constitution, the necessary space is reduced, and the transportation capacity can be increased.

Description

[Detailed description of the invention] The present invention relates to conveyors, and more particularly to chip conveyors.

In a conventional chip conveyor, a scraper is fixed to each opposing link of a symmetrical series of chenos that are stretched around a sprocket wheel and guided by a cheno guide, and the scraper fixed to the chenos slides on the chip conveying surface of the casing. While moving, the chips were conveyed from metal processing and cutting machines (hereinafter referred to as chips), but the chips easily got caught between the scraper and the chip conveying surface, and when they got caught, a large resistance force was applied to the chino. , consumes a large amount of power. Trapped chips quickly wear out the chip conveying surface. Large resistance forces applied to the cheno often result in damage to the cheno. Some of the chips that fall while the scraper is returning are caught by the scraper, are transported in the opposite direction to the original transport direction, and are collected and pushed into the end of the casing, requiring a great deal of effort to remove. If the accumulated chips are not removed, the system may become inoperable, which is a drawback.

For these reasons, an improved chip conveyor has a scraper that is stretched over a sprocket wheel and is supported by a shaft whose axis is oriented in the longitudinal direction of a series of chain links guided by a chain guide. While the scraper is sliding on the chip conveying surface, it stands upright on the chino and conveys the chips that fall onto the chip conveying surface, and while the scraper is moving on the return stroke, gravity causes the scraper to rotate against the axis provided on the link of the chino. It seemed like it was rotating around the center and hanging down.

Since such a chip conveyor hangs down during the return stroke of the scraper, it is no longer necessary to send some of the chips back, but the height of the scraper requires more space for the extending scraper to move than the chino. This increases the width of the chip conveyor.

For this reason, it is not possible to meet the demand for a small and narrow chip conveyor to be accommodated in the space below the narrow bed of a cutting machine tool.

While the scraper is conveying chips, it is pressed and slid against the chip conveyance surface by its own weight, so when the chips are picked up, the scraper escapes upward. Chips escape from there.

In order to reduce the ability of such a scraper to be lifted by the chip, it is common practice to give the scraper some weight. Therefore, when the scraper hangs down from the forward stroke to the return stroke, the scraper may be damaged due to the impact caused by the rapid rotation and fall of the scraper.

Further, as described above, the scraper uses its own weight to press and slide on the chip conveying surface to convey the chips, so the lower end of the scraper is tilted so as to advance in the advancing direction, so that it can scoop. For this reason, when the chip conveying surface ascends a steeply sloped portion, the height of the scraper decreases significantly, and the chips escape over the top of the scraper.

For example, if the chip conveying surface is inclined at 60 degrees with respect to the horizontal plane and the scraper is inclined at 73 degrees in the direction of the scooping hand, the angle of the scraper with the horizontal plane will be 75 degrees. In such a case, the chip carrying capacity becomes extremely small.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks, and to provide a conveyor that requires less mechanical space other than the conveying space, has a large conveying capacity, and has high mechanical durability.

Embodiments of the present invention will be described below with reference to the drawings.

, FIG. 1 is a side view of an embodiment of the invention. A scraper g is attached at equal pitches to the chain guide 7, which is stretched between the driving sprocket wheel 3 and the other sprocket wheel 3, which are supported on the casing, and is guided by the lower chain guide and the upper chain guide 5 and 6, which are fixed to the casing. is pivoted as described below. A tension adjustment device (not shown) is attached to the sprocket wheel 3 or 3.

The casing l has an inlet 10 and an outlet /l for the chip, and the casing l rises from the inlet 10 to the outlet // in a sinusoidal manner, and the chip is connected to the scraper g.
The chip transport surface, which is the bottom plate of the casing, is pushed by
2 and is discharged from the discharge port //. A rail 13, which will be described later, is provided along the lower chain guide, from the left front of the sprocket wheel 3, above the axis of the drive sprocket wheel, and the lower chain guide is installed from the left front of the sprocket wheel 3, at the right front of the drive sprocket wheel. It is provided. The upper chaino guide S is provided on an upwardly convex curve as an upper chain track, and the upper chaino guide 6 is provided on a downwardly convex curve as an upper chain track.

The scraper g stands upright on the chain 7 while moving in the direction of arrow B on the lower chain track between chain guides P and lI, and stands upright on the chain 7 while moving in the direction of arrow A on the upper chain track, in the longitudinal direction of the chain
It is a posture facing a direction.

Figure 2 is a plan view of Chefuku moving on the lower Cheno orbit.
FIG. 3 is a side view of FIG. 1, showing details of the lower chino guide, generally indicated by numerals and . Chefuku is a pair of inner links /lI, /+ and a pair of outer links /
! ;, /3 sandwich roller /6, which is slightly shorter in length than the inner distance of links /4', /lI, and are connected by pin 17 to link /lI, /! r and /6 are pivotally connected.

Outside the outer link tS on the right side of FIG. 2, there is a link l! A lug ig is fixed upright on the plate surface of the link 15 in the longitudinal direction. The base of the horizontal member 2/ of the scraper plate arranged to sandwich the lug lug /1 and the bracket protruding parallel to the lug lug from the vertical member serving as the action part for pushing the conveyed material of the scraper g, and the lug lug. It is Chefuku's pin 17
It is pivotally mounted by a pin θ perpendicular to a plane containing the axis of .

The left end surface λ of the horizontal member 21 is the outer link 1 of the chino 7.
When the end surface, 2-, comes into contact with the outer surface of the link/ri, the scraper blade faces to the right at right angles to the check. scraper g
The chip conveying surface 2 is placed in contact with a sliding member 13 fixed to the lower end surface of the vertical member.

The lower chain guide shown in FIG. 1 has the following configuration. That is, the rail 13 is fixed upright to the side plate of the casing l, and the guide members j, t, ! are fixed to the upper and lower surfaces of the support plate j4'. & is inserted into the inner link /F so that it is sandwiched between the roller 16 of the 7th chain and the 16th one with a small gap.

The support plate on the left side of the guide member 2 constitutes the upper side of the chain guide in Fig. 1, and is attached to the sprocket wheel 3.
The lower part of the drive sprocket wheel λ is arranged after the lower part.

In addition, the lower chain guide shaft shown in FIG. 1 is constructed by attaching flanges to both ends of the cylindrical surface of the roller 16 shown in FIG.

It is also possible to sandwich the rollers 3 on both sides with an appropriate gap, and link the rollers 16 to each other.

is, and the guide member J&,2. The surface corresponding to the roller 16 at t may be a concave surface that sandwiches the roller 16.

FIG. 7 is a front view of the scraper t in a state where it has been raised up with oil on the drive sprocket wheel, and FIG. S is a plan view of FIG. 7. Immediately following, the cam core, which has a constant inclination and is fixed to the side plate of the casing l, has a constant height h at the D section, and the height h is almost the length! Then it ends. From a distance 1 from the D part of the cam head, the scraper guide head fixed to the bracket 2g fixed to the side plate of the casing L moves along the upper orbit of the chain 7 to a point just above the left end of the sprocket wheel 3 shown in Fig. 1. It continues all the way to the front.

The distance J needs to be slightly longer than the width b of the scraper plate (Fig. S). The height h of the cam 27 is calculated from the distance d1 between the center of the pin λθ and the inner surface of the side plate of the casing.
It is a little smaller than the length obtained by subtracting the distance d2 from the center of the circle to the back surface in Figure S of the scraper.

Also, the distance g between the side plate of the casing l and the scraper guide 19 is determined from the distance d1 above, and the center of the pin 20 and the scraper t.
In Figure S, it is necessary to make the length a little larger than the distance d3 to the left side.

As shown in FIG. 7, the above-mentioned cam 27 and scraper guide 29 are positioned opposite to the intermediate height portion of the extension 30 projecting to the left side of the scraper g.

Figure 7 is a front view of the vicinity of sprocket wheel 3.
3 is a side view of FIG. 6 viewed from the direction of arrow E in FIG. 1.

The cam 3 coaxially integrated with the sprocket wheel 3 and the boss 31 is a truncated conical body, and the radius of the small end surface 33 on the sprocket wheel 3 side is R1, and the radius of the large end surface 3 is R2.

As shown in Fig. 6, the scraper g has a bracket fixed to the front side of the scraper to the front side of the pivoting part by the pin 20 of the scraper g) 3! A cam follower 3A fixed to the tip of r is parallel to the pin 20. As shown in FIG. 7, the tip of the cam follower 36 is located at a distance S from the axis 37 of the cam 3 when the outer link/S of the chain 7 is located at the top of the sprocket wheel 3, and the distance S is The radius is smaller than R1. Further, when the scraper g is oriented perpendicularly to the trajectory of the chino 7 as shown in Fig. g, the right side surface of the cam follower 36 comes into contact with the small end surface 33 of the cam 3.

The shape of the cam 3 may be cylindrical. Further, it does not have to be integrated with the sprocket wheel 3, and may be fixed to the casing.

Upper chain guide left and upper chain guide 6 shown in Figure 1
As shown in FIG. 9, guides, members, 3 are attached to support plates 3';
9. '10 is fixed, and the guide member 39゜qo is a roller/
6 are facing each other with a slight gap between them. The upper chain guide j may include only the support plate 37 and the guide member 37, and the upper chain guide O may include only the support plate 3g and the guide member lIo.

When power is supplied to a drive device (not shown), the drive sprocket wheel starts rotating, and the chain 7 moves in the directions of arrows A and B in FIG. 1 along the sprocket wheel 3, lower chain guide, upper chain guide, and B.

When the chino 7 moves on the lower track, the lowermost surface of the scraper etc. slides on the upper surface of the chip conveying surface 12 as shown in FIG. 3 and moves in the direction of arrow B in FIG. 7. The chips fall from the input port 10 to the front of the sprocket wheel 3, and are conveyed to the surface in the advancing direction of the scraper g.

Roller/6 and inner link/+ are on the left of guide member 2.

Ko! , the end surface λ of the horizontal member J/ of the scraper rack presses against the outer link 1 of the chopper, and the scraper rack holds the chip conveying surface 12 in an upright state and the chip on the track of the chopper 7. The conveyance surface /, 2 moves while rubbing. If the chips get stuck between the chip conveying surface /2 and the sliding plate of scraper g, the lower end surface of 23, the guide member, 23.2 left side /6 and inner link /l
The scraper t moves without missing much of the chips 9 and without applying an excessive tensile force to the chino 7 because the scraper t escapes through a small gap between the scraper t and the chip t. The reaction force of conveying the aged chips and the reaction force of the friction force between the scraper g and the chip conveying surface 7.2 is transferred from the outer link 15 of the chain 7 to the inner link/rito guide member via the pin/7. It is supported by 2g and 2 left side.

As shown in FIG. 1, when the scraper g approaches the drive sprocket wheel, the chips 9 are discharged from the discharge port //. The chips on the front of the scraper rack are gone, and the part of the handle that holds the scraper rack is guided by the drive sprocket wheel and moves upward, but the horizontal member 2
The end face 2.2 of / is pressed against the outer link / to make the scraper g stand upright on the track of the chino 7 and move to a portion directly above the axis of the drive sprocket wheel λ.

Next, as shown in FIG. 5, the extension 30 of the scraper g begins to engage the cam 27, and as the chino 7 advances, the scraper g rotates counterclockwise around the pin 2o, and the cam 27 When reaching the D section, the complete scraper t faces the tensioning direction of the chino 7. For a while scraper g is cam 27
Next, it enters between the scraper guide 29 and the side plate of the casing l, and moves along the scraper guide body.

Thus the scraper g is the fourth sprocket wheel 3.
When reaching the upper left end shown in the figure, the cam follower 36 engages with the cam 3, and the scraper moves clockwise around the pin ○ as seen from above in Figure 7. As shown, the cam follower 3A is guided by the small end surface 33 of the cam 3, and stands upright on the trajectory of the checkerboard, and is attached to the sprocket wheel 3.
It moves downward from above to the sprocket wheel 3, moves below the sprocket wheel 3, and the sliding plate 3 of the scraper slides on the upper surface of the chip transfer surface lλ shown in FIG. The condition begins.

As explained above, the other scraper g continues to convey the chips in front of the scraper in the advancing direction. When the power to the drive device is cut off, the scraper, scraper, etc. will stop.Although the above explanation has focused on chips, it is also possible to transport other loose materials.

Other embodiments are shown in FIG. 1O and FIG. 1/. FIG. 7θ is a plan view, and FIG. 1 is a side view. Brackets explained in Figures λ and 3)/? A roller λ is pivotally attached to a cantilever pin 'I/ fixed vertically downward to the bracket /9 at the end of the bracket.

The rollers 1I-2 are arranged at the rear in the traveling direction C of the scooper g, and the rollers 1I-2 are designed to roll on the vertical member 26 of the rail/3. Yu 6
While rolling, the scraper plate is held upright on the chino track, and the reaction force of the scraper g transporting the chips and the reaction force of the frictional force between the scraper and the chip transport surface /2 are as follows:
Roller 4t, 2 and vertical member, 2A, inner link of chino 7 and guide member, 2j, 2. ! Supported by the side of i.

As explained above, the present invention has an endless chino that is stretched between the sprocket wheel on the discharge side of the transported material and the sprocket wheel on the input side of the transported material, which are supported by a horizontal shaft on the casing, and guided by the chino guide fixed to the casing. The link on one side of the endless chain slides against the conveyance surface on the bottom of the casing, which is pivoted by an axis perpendicular to a plane containing the axes of the pins on both sides that engages the link with the other link. A scraper is provided, and the scraper has an extension extending from a pivoting part of the scraper toward the side opposite to the main part of the scraper that acts on the conveyed object, and a cam follower and a scraper that are located near the base of the main part of the scraper that acts on the conveyed object. support means on the back of the scraper which engages a rail provided on the cheno or casing side plate in the upright position, and an extension of the scraper in the position where the chino moves from the sprocket wheel on the conveyance side to the upper chino track. The scraper guide is fixed to the casing and the scraper guide is fixed to the casing to guide the scraper along the upper chino track. A cam is provided at the position where the scraper rotates and engages with the cam follower of the scraper to make the scraper stand upright with respect to the chino. Each device is housed in a casing and a drive device is also provided, so that loose chips such as chips during conveyance are prevented. Even if an object gets caught between the scraper and the conveyance surface, the scraper will properly escape, so a large amount of power will not be consumed.

Sandwiched objects do not quickly wear out the conveying surface. A large tensile force will not be applied to the cheno and damage it, and the carrying capacity will not be significantly impaired.

While the scraper is moving on the upper track, it does not send back some of the loose materials that fall from above and cause them to get stuck in the corners of the casing.

In addition, while the scraper is moving on the upper track, it drips onto the chino track, making the conveyor narrower, which is of great utility.

Since the scraper stands upright on the conveyance surface and also stands upright on the chino track, the effective height of the scraper is very high on the steeply sloped part of the chino track (conveyance surface), so it has a very high conveyance capacity when conveying on steep slopes. demonstrate.

Furthermore, the scraper is lightweight and durable because it does not undergo impactful movements.

Therefore, bulk materials are transported in large quantities on flat roads and steeply sloped conveyance paths.
We were able to provide a conveyor with strong conveyance and durability.

[Brief explanation of drawings]

Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a plan view of the scraper moving on the lower chino track, Fig. 3 is a front view of Fig. 2, and Fig. 9 is the upper part of the drive sprocket wheel. Front view showing the state where the scraper has moved to ○, 3rd
Figure 6 is a front view of the sprocket wheel at the end of the upper raceway, Figures 7 and S are side views of Figure 6, and Figure 9 is the chain guide of the upper chain guide. A sectional front view, FIG. io, and FIG. 11 are a plan view and a side view showing other embodiments. ／・Casing Co.・Drive sprocket wheel
3＠・Sprocket wheel g・・Lower cheno guide 7・Φcheno g・・scraper /λΦ・chip transfer surface 13・・rail llI・・inner link is・
・Outside link 16. Kuyu Koro /7,2θll1
1 bottle/If...Lug metal, 2j, 39, '70Φ・
Guide member 27.31...Cam 30...Extension part 33
...Small end face 36 fist/cam follower. Patent Applicant Yamaei Kogyo Co., Ltd. Agent Arai Section Figure 2 1 Figure 3 To 1 Figure 9 ( / ■

Claims (1)

[Scope of Claims] l The sprocket wheel is stretched between a sprocket wheel on the discharge side of the transported material and a sprocket wheel on the input side of the transported material, which are supported on the casing by a horizontal shaft. It has an endless chino guided by a chino guide fixed to the casing, and is pivoted to one link of the endless chino by an axis perpendicular to a plane containing the axes of pins on both sides that engage the link with the other link. The scraper is equipped with a scraper that scrapes the conveyance surface of the conveyed object on the bottom of the casing, and the scraper has an extension part that extends from the pivot part of the scraper toward the side opposite to the main part of the scraper that acts on the conveyed object. Near the base of the main part, the cam follower and the scraper have support means provided on the back of the scraper that engages with rails provided on the cheno or the casing side plate in a position upright with respect to the cheno, and the chino has a sprocket on the conveyed material discharge side. A cam fixed to the casing engages with the extension of the scraper to rotate the scraper in the direction of movement of the scraper at a position where it moves from the wheel to the upper chain track, and a scraper guide is provided on the upper chain track to guide the scraper. A cam is fixed to the casing and engaged with the cam follower of the scraper at the position where the scraper rotates as it accumulates on the sprocket wheel on the conveyed material input side to make the scraper stand upright with respect to the chain. Each device is housed in the casing and driven. Conveyor equipped with equipment.