JPH0826446A - Constant amount feeder - Google Patents

Abstract

PURPOSE:To make a conveying mechanism compact and equalize a conveying amount of conveyed articles. CONSTITUTION:A conveying tube 28 having a projecting line 31 continuing spirally from a carrying-in port 29 to a carrying-out part and provided projectingly on the cylindrical surface is provided in a conveying part of a constant amount feeder. Conveyed articles carried into the carrying-in port 29 of the rotating conveying tube 28 are scooped up by the spiralling projecting line 31 is and transferred to the carry-out port side while slidably contacting the projecting line 31 to be carried out of the carrying-out port by a constant amount.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to food powders such as shells, flour and seasonings, industrial powders such as fertilizers, bolts, nuts, bearing parts, rollers, precision machine parts and electronic parts. The present invention relates to a fixed-quantity feeder applied when various kinds of objects to be conveyed such as industrial parts are conveyed to a position apart from a loading position.

[0002]

2. Description of the Related Art Conventionally, when carrying various powders, industrial parts, etc., a conveyor device such as a bucket type conveyor, a screw conveyor, a hopper feeder, etc. has been widely used.

[0003]

In the conventional transfer apparatus, the loading section for loading the transferred object is installed above the transfer section, which causes a problem that the entire apparatus becomes large and the position at which the transferred object is carried out is limited. As a result, there is a problem that it is difficult to carry it to a high place.
It is an object of the present invention to make a transport mechanism compact and diversify the carry-out position to stably transport a fixed amount of a transported object.

[0004]

According to a first aspect of the present invention, there is provided a fixed quantity feeder, in which a transporting portion adjacent to a front portion of a loading portion into which a transported object is loaded is provided with an inlet for transporting the transported object, and A unloading port through which an object is unloaded is opened at both ends, and a projection that is continuous in a spiral shape from the loading port to the unloading port is provided on the inner peripheral surface with a spiral groove, and the ridge is centered on the center of rotation. It has a configuration in which a cylindrical transfer cylinder that is rotationally driven is installed.

According to a second aspect of the present invention, there is provided a fixed-quantity feeder comprising a feeding member having a feeding case for feeding a conveyed object forward while vibrating, and a passage wall fixed to the feeding case. A bottom plate which is horizontally installed in the feeding case and has a tapered front portion, a pair of left and right side walls connected to both side edges of the bottom plate, and a rear end of the bottom plate A rear wall portion connected to the edge and a feed port opened between the front end edges of the side wall plates and inserted into the carry-in port are formed, and the feed case is formed on the passage wall in the width direction. A rear ridge extending inclining in a forward ascending shape along a center line that is bisected, and a front ridge extending inclining in a forward descending shape along the center line in front of the rear ridge; A pair of left and right rear slopes, which are oppositely inclined on both sides of the rear ridge and are symmetrically juxtaposed and whose width gradually increases forward, A pair of left and right front slopes are formed on both sides of the front ridge line in a symmetrical manner so as to be inclined in opposite directions, and form a pair of left and right front slopes whose width is gradually reduced forward, and between the both rear slopes and the both side walls. A pair of left and right rear feeding passages having a passage width gradually decreasing forward and upward are formed, and a pair of left and right front feeding passages having a passage width gradually increasing forward and downward are formed between the front slopes and the both side plates. It has a formed structure.

[0006]

According to the first aspect of the present invention, the conveyed object carried into the transfer tube from the charging section through the transfer port is scooped by the spiral ridge, slides on the ridge, and slides on the bottom portion of the transfer tube. Is gradually transferred straight to the transfer port side by the screwing operation of the ridge, and is carried out of the transfer cylinder through the transfer port.

According to the second aspect of the present invention, the conveyed object put into the feeding case is fed to the front by the vibration of the feeding case, so that the conveyed object is moved by the rear slopes of the passage wall. It is distributed to one side and fed forward, passes through both rear feeding passages, is introduced into both front feeding passages, passes through both front feeding passages in a dispersed state, merges, and to the transport unit through the feeding port. It is thrown.

[0008]

According to the first aspect of the present invention, when the object to be conveyed is conveyed, the object to be conveyed is scooped out by the screwing operation of the ridge of the conveying cylinder in the vicinity of the carry-in port, and the excessive object to be conveyed is struck from the ridge. Only the appropriate amount of the transported object is spilled and transferred by the ridge, and the amount of the transported object transferred by the ridge is automatically regulated as the transported object progresses. The transported object can be stably transported by the transportation cylinder, and the amount of the transported object carried out from the transportation cylinder can be equalized with time.

Further, since the object to be conveyed is conveyed in the conveying cylinder by the rotating operation of the conveying cylinder itself, the conveying mechanism can be made compact and simple, vibration and noise can be eliminated, and in the conveying cylinder. Since the stationary member is not installed, it is possible to solve the problem that the transported object is caught in the gap between the stationary member and the rotating body, and the transported object can be transported without damage due to its damage.

[0010] Further, by changing the length and the installation angle of the transfer cylinder, the transferred object can be transferred to a desired position. For example, the transferred object can be transferred to a position far away from the loading position or obliquely to the loading position. It can be conveyed to a lower position or a high position diagonally above the loading position, and can be conveyed to a hot place or a dangerous place.

According to the second aspect, the object to be transported is divided into the right and left rear feeding paths, and the amount of the object to be fed into the two front feeding paths through the two rear feeding paths is set to the front and rear feeding directions. Since it is restricted at the boundary of the passage, it is possible to always feed an appropriate amount of the conveyed object to the left and right front feeding passages, and to supply the conveyed object which passes through both front feeding passages and is fed to the conveying unit. The delivery amount can be leveled.

In particular, since the front feed passages are gradually widened toward the front and are expanded upward, when the conveyed object passes through the left and right front feed passages, the conveyed object is moved in the horizontal direction. The transported object can be smoothly fed to the transport unit without biting between the transported object and the passage surface and without biting each other.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. In a fixed-quantity feeder that conveys objects to be conveyed such as various powders and industrial parts, a base plate 1 installed horizontally on a floor through a cushion body 1a for absorbing vibration.
An object to be transported is loaded on the top, and a loading unit 2 that receives the loaded target object and feeds it forward, and a target object fed from the loading unit 2 is transported to a desired position away from the loading position. And the transport unit 3 that is installed next to each other.

A pair of grips 4 that are gripped when the fixed-quantity feeder is carried are connected to both ends of the base plate 1.

In the feeding section 2 of the fixed quantity feeder, a lower base plate 5 connected to the base plate 1 by bolts on the base plate 1 and an upper base plate 6 connected to the lower base plate 5 so as to be vertically movable. Are installed with a gap, and the upper base plate 6
A vibrator base 7 is screwed to the upper surface of the.

A vibrator 8 is installed on the vibrator base 7, and a feeding member 9 that is driven by the vibrator 8 to vibrate, receives the object to be conveyed and vibrates and feeds it is installed on the vibrator 8. .

A feeding member 9 is provided in a shallow box-shaped feeding case 10 into which an object to be conveyed is placed, and is provided in the feeding case 10. A mountain-shaped passage wall 11 fixed to the feeding case 10 in a state of being equally divided in the width direction is provided.

The feeding case 10 is horizontally installed, and has a trapezoidal bottom plate 10a having a rectangular planar shape in the central portion and the rear portion and a tapered planar shape in the front portion, and is connected to both side edges of the bottom plate 10a. , A pair of left and right side wall plates 10b which are erected so that the central part and the rear part are parallel to each other and the distance between the front parts gradually decreases forward, and the rear wall plate which is erected so as to be connected to the rear end edges of the bottom plate 10a. 10c and a feeding port 10d formed between the front edge of the bottom plate 10a and the front edge of the side wall plates 10b are formed.

The passage wall 11 is fixed to the upper surface of the bottom plate 10a near the center in the front-rear direction and at the center in the width direction at the front.

The passage wall 11 has a rear ridge line 12 which is extended inclining in a forward ascending shape along a center line a which bisects the feeding case 10 in the width direction and has a maximum front end height. A front ridge line 13 extending inclining forward and downward along the center line a in front of the rear ridge line 12 and having a maximum rear end height;
A pair of left and right rear slopes 14 symmetrically juxtaposed on the opposite sides of the rear ridge line 12 with the rear ridge line 12 as the upper edge and inclined in the opposite direction at an equal gradient.
On both sides of the front ridge line 13, a pair of left and right front slopes 15 symmetrically arranged side by side with the front ridge line 13 as upper end edges inclined in the opposite direction at an equal gradient.

The height of the connecting portion between the front and rear ridge lines 13 and 12 is equal to the height of both side wall plates 10 d of the feeding case 10.

The rear end of the rear ridge line 12 and the rear ends of both rear slopes 14 are connected to the center of the upper surface of the bottom plate 10a of the feeding case 10 in the width direction, and the front end of the front ridge line 13 and the front ends of both front slopes 15 are bottom plates. The feeding port 11d is connected to the central portion of the front edge of the upper surface of the upper surface 10 in a state where the feeding port 11d is bisected.

The lower edges 14a of the rear slopes 14 and the lower edges 15a of the front slopes 15 are connected to the upper surface of the bottom plate 10a of the feeding case 10, respectively.

The two rear slopes 14 are formed so that the width thereof gradually decreases rearward, and the two front slopes 15 are formed such that the width gradually decreases forward.

Between the rear slopes 14 of the passage wall 12 and the vicinity of the center of both side wall plates 10b of the feeding case 10, the load is distributed to both sides of the rear ridge 12 of the passage wall 11 and fed. A pair of right and left rear feeding passages 16 are formed symmetrically. The both rear feeding passages 16 are formed so that the passage width gradually decreases to the front upper side and expands upward, and the width of the road surface 16a gradually decreases to the front side.

Between the front slopes 15 of the passage wall 12 and the front portions of the side wall plates 10b of the feed case 10, both rear feed passages 1 are provided.
A pair of left and right front feeding passages 17 for feeding the conveyed object passing through 6 to the conveying portion 3 are formed symmetrically.

The front feed passages 17 are formed such that the width of the front feed passages 17 gradually increases forward and downward and expands upward, and the width of the road surface 17a gradually increases forward.
The width A1 of the rear end is slightly shorter than the width A2 of the front end of the road surface 17a.

An object to be conveyed put in the rear portion of the feeding case 10 is fed to the front by the vibration of the feeding case 10, and either of the rear feeding passages 16 is formed by the both rear slopes 14 of the passage wall 11. It is distributed to one side and fed forward, passes through both rear feeding passages 16 and is sent to both front feeding passages 17 through a boundary portion 18 between both rear feeding passages 16 and both front feeding passages 17, Feed port 10 through both front feeding passages 17
d and are carried into the transport unit 3 through the feed port 10d.

In the transport section 3, the base end of the bracket 20 is joined to the upper end of a columnar post 19 erected on the base plate 1 in front of the loading section 2 after the upper portion is inclined upward and backward. Have been.

A motor 21 is fixed to the rear bracket 20, and a base 35 of the connecting rod 22 installed to be inclined forward is connected to the rear bracket 20 by a nut 35. A shaft portion of a rotatable receiving roller 23 is connected to 20.

A front bracket 24 is connected to the front end of the connecting rod 21 by a nut 36, and a shaft portion of a front receiving roller 26 which is installed concentrically with the rear receiving roller 23 is connected to the front bracket 24.

The front bracket 24 is rotatably supported by a front shaft portion 27a of a drive roller 27 which is installed in a front upward direction and is coupled to the output shaft of the motor 21 and is rotationally driven by the motor 21.

On the front and rear brackets 24 and 20, a cylindrical conveying cylinder 28 is rotatably supported by the rollers 27, 26 and 23 while being in contact with the drive roller 27 and the front and rear receiving rollers 26 and 23, respectively. It is installed with a slope.

The transport cylinder 28 is rotationally driven by the rotation of the drive roller 27 about the central shaft 28a.

At both ends of the transport cylinder 28, a carry-in port 29 into which the object to be transported sent from the loading section 2 is loaded, and the transport cylinder 2
A carry-out port 30 through which the conveyed object that has passed through the inside 8 is carried out is opened.

On the inner peripheral surface of the transfer cylinder 28, a screw-shaped ridge 31 is continuously provided in a spiral shape from the carry-in port 29 to the carry-out port 30, and a screw-shaped ridge 31 for carrying an object to be conveyed is provided in a protruding manner with a spiral groove 32 therebetween. In the example, the ridge 31 has a trapezoidal cross section.

The cross-sectional shape of the ridge 31 is selected according to the shape of the object to be conveyed. For example, when a sphere such as a bearing ball is transferred, the cross-sectional shape of the transfer surface 31a of the ridge 31 is formed in a concave arc shape. The used transport cylinder 28 is used.

The ridge 31 is formed such that the height of the ridge 31 at a portion near the carry-in entrance 29 is lower than the height of the ridge 31 at a portion other than the vicinity of the carry-in entrance 29, so that extra conveyed objects are carried in. An appropriate amount of the object to be transported is spilled off from the ridge 31 near the mouth 29, and is scooped and transported by the ridge 31.

A stopper 33 is attached to the bracket 34 coupled to the base end of the connecting rod 21 so as to rotate in sliding contact with the rear end surface of the transport cylinder 28 and to prevent the transport cylinder 28 from moving in the axial direction. .

The conveyed object carried into the transfer tube 28 through the transfer port 29 is scooped by the spiral ridges 31 and slides down on the lower ends of the transfer surfaces 31a of the ridges 31 while sliding down. Through the bottom portion of the inside 28, the ridge 31 spirally moves the fin 31, and is gradually transferred straight to the carry-out port 30 side, and is carried out of the transport cylinder 28 through the carry-out port 30.

In this embodiment, since the structure is as described above, the object to be conveyed is scooped by the screwing operation of the ridge 31 of the conveying cylinder 28 in the vicinity of the carry-in port 29 when the object is conveyed. The transferred object spills off from the ridge 31 and only an appropriate amount of the transferred object is transferred by the ridge 31. Also, the amount of the transferred object by the ridge 31 automatically changes as the transferred object advances. Since the adjustment is performed, an appropriate amount of the transferred object can always be stably transferred by the transfer tube 28, and the amount of the transferred object discharged from the transfer tube 28 can be equalized with time.

Further, since the object to be conveyed is conveyed in the conveying cylinder 28 by the rotating operation of the conveying cylinder 28 itself, the conveying mechanism can be made compact and simplified, vibration and noise can be eliminated, and the conveying cylinder 28 can be eliminated. Since the stationary member is not installed inside, it is possible to solve the problem that the transported object is caught in the gap between the stationary member and the rotating body, and it is possible to transport the transported object reasonably without damaging it. .

Further, by changing the length and the installation angle of the transfer tube 28, the transferred object can be transferred to a desired position. For example, the transferred object can be moved to a position far away from the loading position, It can be conveyed to a diagonally lower position or a high position diagonally above the loading position, and can be conveyed to a hot place or a dangerous place.

Further, when carrying the carried object into the carrying section 3, the carried object is sorted into the left and right rear feeding passages 16,
The feed amount of the conveyed object that passes through the rear feed passages 16 and is fed into the front feed passages 17 is equal to the front and rear feed passages 17 and 1.
6 is restricted at the boundary 18, so that an appropriate amount of the conveyed object can be always sent to the left and right front feeding passages 17, and the conveyed object is passed through both front feeding passages 17 and fed to the conveying unit 3. The feed amount of the conveyed product can be equalized.

In particular, since the front feed passages 17 are gradually widened toward the front and are widened upward, the conveyed objects pass through the front feed passages 17 on the left and right sides. The transported object can be fed in a dispersed manner in the lateral direction, and the transported object can be smoothly fed to the transport unit 3 without biting the transported object into the passage surface and biting between the transported objects. .

[Brief description of drawings]

FIG. 1 is a side view of a quantitative feeder showing one embodiment of the present invention.

FIG. 2 is a view taken along line X1-X1 in FIG.

FIG. 3 is a plan view of a feeding member.

FIG. 4 is a front view of a feeding member.

FIG. 5 is an enlarged view taken on line X2-X2 of FIG. 1;

FIG. 6 is a sectional view taken along line X3-X3 of FIG. 3;

FIG. 7 is an enlarged view taken on line X4-X4 of FIG. 1;

FIG. 8 is a side sectional view of a transport cylinder.

[Sign clear]

 2 Input unit 3 Conveying unit 10 Feed case 10a Bottom plate 10b Side wall plate 10c Rear wall plate 10d Feed port 11 Passage wall 12 Rear ridge line 13 Front ridge line 14 Rear slope 15 Front slope 16 Rear feed path 17 Front feed path 21 Motor 28 transport tube 29 carry-in entrance 30 carry-out exit 31 ridge 32 spiral groove

Claims (2)

[Claims] 1. A carry-in port for admitting an object to be conveyed and a carry-out port for ejecting an object to be conveyed are provided at both ends of a conveying section adjacent to the front of a loading section for introducing the object to be conveyed. A projecting strip, which is opened and continues in a spiral shape from the carry-in port to the carry-out port, is provided on the inner peripheral surface so as to project at a spiral groove, and a cylindrical transfer cylinder is installed which is driven to rotate about a central axis as a rotation center. A quantitative feeder characterized by the following. 2. A feeding member having a feeding case for feeding a conveyed object forward while vibrating and a passage wall fixed to the feeding case is installed in the input section, A bottom plate which is horizontally installed in the case and has a tapered front portion, a pair of left and right side walls connected to both side edges of the bottom plate, respectively, and after being connected to a rear edge of the bottom plate. Walls and
A feed port is formed between the front edges of the both side wall plates to be inserted into the carry-in port, and the passage wall is provided with a center line that bisects the feed case in the width direction. A rear ridgeline that is inclined and extended upward, and a front ridgeline that is inclined and extended forward and downward along the center line in front of the rear ridgeline,
A pair of left and right rear slopes, which are inclined in opposite directions on both sides of the rear ridge and are arranged side by side in a symmetrical manner, and whose width gradually increases forward, and two sides of the front ridge are inclined in opposite directions and are symmetrical. Side by side,
Forming a pair of left and right front slopes whose width gradually decreases forward, and forming a pair of left and right rear feeding passages whose passage width gradually decreases forward and upward between the rear slopes and the both side walls; 2. A fixed-quantity feeder according to claim 1, wherein a pair of left and right front feed passages having a passage width gradually increasing downward and forward is formed between the front slopes and the both side plates.