JPS62275912A - Conveyer device - Google Patents

Abstract

PURPOSE:To prevent objects to be conveyed from stagnating by conveying the objects intermittently within a specified zone between conveyer rollers divided into multiple zones even if there are objects in a downstream zone neighboring the specified zone. CONSTITUTION:Multiple conveyer rollers 2 are rotated clockwise by means of a belt 3 to transport 1 an object A in the direction of the arrow. A transport passage 1 is divided into zones Z0-Z6. Each zone is provided with a drive body 5 raised/lowered by air 6 to raise/lower a belt receiver 4 to be brought into contact with or separated from the belt 3 so that the roller 2 in the zone is driven/stopped. Air is discharged from or supplied to valves V1-V6 in the upstream neighboring zone according to presence or absence of output from sensors S1-S7 arranged in the respective zones to control the transport of the object A coming from upstream side. Air is supplied intermittently to a valve 4 in a specified zone Z4 in the middle from a valve VT by the control of a timer T to raise/lower the up-and-down drive body 5 intermittently. Thus, the objects are transported even if there are objects in a downstream zone to put the objects without gaps among them and the objects are prevented from stagnating.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to a conveyor device that temporarily retains a plurality of items on a conveyance path. .

(Prior Art) As this type of conveyor device, there is one shown in FIGS. 3 to 5.

In the figure, reference numeral 1 denotes a conveyance path for conveying the article A in a predetermined direction (to the right in the figure). , predetermined pitch sections ZO, Zl, Z2.
An endless drive belt 3 is disposed below the large number of conveyance rollers 2 and moves in the direction opposite to the conveyance direction (to the left in the figure) along the conveyance path 1. By pressing the driving bells 1 to 3, the conveying roller 2 is rotated in a predetermined direction (the cutting direction in the drawing).

Reference numeral 4 denotes a plurality of bells 1 to holders arranged along the magic tricks of the drive bells 1 to 3, and each of these bells 1 to holders (Z4 is a section 70, 21, 72, Z3, 4) of the conveyance path 1. . . , and are each supported on a pair of actuators 5 as four lowering drive bodies, and each actuator 5 is divided into sections IO, 71, Z2, 23, . . . Multiple independent mechanical valves vo, vi.

V2. V3..., each valve vO2ν
1. V2゜v3... are connected to the air source 6, and each of these valves VO, Vl, V2. Starting from V3..., the actuator 5 will be supplied with air in each section ZO, Zl, 22. Z3...belt holder (]4
is independently bent down, and when the belt receiver (pu4) is on the upper back by supplying air to the actuator 5, the drive bell 1 is moved to its zone Z0.
．． 71. Z2. It is in contact with the conveyance rollers 2 of Z3... and can independently drive the conveyance rollers 2 of each section ZO, Zl, Z2, 73....

Sl, S2.33... is section 70.71 of conveyance path 1
．． 72°13... A plurality of mechanical sensors S1°S2. S3..., and each sensor S1.
S2. S3... is the provided section ZO, 21,
Z2. L section Z1.72.13 (1) AvlV1. adjacent to the second stream side in the conveyance direction of Z3... V2.
mechanically connected to V3... via a link mechanism 7,
Normally, the sensor 31. is protruded onto the conveyance path 1 by a spring or the like (not shown), and is pushed down by the product A riding on it to detect the product Δ. S2゜S3...
movement is caused by the link mechanism 7 in the adjacent upstream section Z1
．． 72. Z3... valve Vl, V2. V3・
...and the valve V1. V2. V3... is set to change, and in a certain section 20. Zl,
Sensitivity of Z2.73...31°S2. When S3... detects item A, the sections Zl, Z adjacent to the upstream side
2. The actuator 5 of 23... is the valve Vl, V
2. V3..., the air changes from the supply state to the exhaust state and is exhausted by the weight of the belt receiver 4, and the bell mill receiver 4 descends to the area Z1. Z2. Z3...
When the drive of the transport roller 2 of S2 is stopped and the article A has passed, the sensors S1, S2. S3... returned to 1 stomach,
Section 71 adjacent to the upstream side. The actuator 5 of Z2.73... is the valve Vl, V2. V3... returns from the exhaust state to the air supply state, and the belt receiver 4 rises to move to the upstream adjacent section Z1. Z2. The drive of the conveyance roller 2 of Z3... is restarted.J: It is turned.

Then, the most downstream section 'IO' of the transport path 1 in the transport direction
The valve vO is operated by a mechanical signal from the outside, and in addition to the actuator 5 for turning the bell mill receiver (P4) into R and M, the valve vO has a front end portion of the conveyance path 1. An actuator 9 is connected to lower the stopper 8, and when the belt receiver 4 is on the upper back, the stopper 8 is lowered, and the belt receiver (when J4 is lowered, the collar 8 is on the upper back) by a spring or the like. There is.

In this conveyor device, when the item A is not on the conveyance path 1, each section Z1 other than the most downstream section ZO,
Z2. Z3-k: Oiteha, each section ZO, Zl,
Z2゜13...sen→ノ31. S2. S3・
... protrudes onto the conveyance path 1. J:su, link ta
Valve Vl via 4% S7.

V2. V3... enters the air supply state, the belt receiver 4 rises via the actuator 5, the conveyance roller 2 rotates in a predetermined direction (time ■) in the force direction, and then, in the most downstream section lO. , the valve vO is in the exhaust state by an external signal, the bell I to the receiver 4 are lowered via the actuator 5, the conveyance roller 2 is in a non-driven state, and the switch is in the exhaust state via the actuator 9. ~Brim 8 is in a state of ten arms.

In this state, when the item A is carried into the -stream side of the conveyance path 1, the article △ is conveyed in a predetermined direction (to the right in the figure) by each of the driving conveyance rollers 2, as shown in FIG. , the conveyance roller 2 in the non-driven state in the most downstream section ZO of the conveyance path 1
It stops at the top, and here it climbs onto sensor S1 and moves sensor S1.
is pushed down, and this sensor S1 causes the valve v1 to be in the exhaust state via the link mechanism 7 in the section 11 adjacent to the upstream side, the belt receiver 4 is raised via the actuator 5, and the conveyance roller 2 is deactivated. state.

In this way, the plurality of articles A carried in are sequentially delivered to each section Z0.21. Z2. At the same time as stopping at Z3..., the sensors S1. 72. Activate S2, S3, and so on to create a section Zl on the upstream side. Z3 .

Then, when carrying out the retained article A, the valve vO of the most downstream section 1O is set to the air supply state by an external signal, the belt receiver 4 is raised ten degrees via the actuator 5, and the conveyance roller 2 By driving the stopper 8 and lowering the stopper 8 via the actuator 9, the items A can be carried forward. When a predetermined number of items A have been carried out, the valve vO in the most downstream section 'lO is turned off by an external signal. 1 no 1
When the transport roller 2 is returned to the non-driving state, the stopper 8 is turned upward.

(Problems to be Solved by the Invention) By the way, in the case of the above-mentioned conveyor device, when the article Δ stops, the stopped non-driving state section 70. Zl,
Z2. Sensor S of Z3..., 1.32. S3・
However, due to differences in the conditions such as the weight or length of item A, the stopping position of item A is unstable. For example, if item A is light, the fifth
As shown in the figure, before the article A reaches the sensor S1 in the section IO, which is the most upstream section in this figure, where it stops, it may become caught in the sensor 1jS2 in the section 11 on the upstream side. When this happens, the section z2 on the upstream side becomes non-driven, so the articles Δ are retained at long intervals, resulting in poor retention efficiency on the conveyance path 1.

The present invention was made in view of the above points, and the present invention has been made in view of the above points.
The purpose of this is to prevent the items A from staying for long periods due to differences in conditions such as light weight, length, length, etc.

[Structure of the invention]

(Means for solving the problem) The present invention provides a large number of conveyance rollers 2 constituting a conveyance path 1,
Endless drive bells 1 to 3 are arranged along the lower part of each conveyance roller 2, and sections 20. Zl, 72. .

A plurality of belt receivers 4 are divided into sections 13 and independently disposed, and a section 20 of the conveyance path 1. Zl, Z2.
Each of the belt receivers 4 is independently raised and lowered for each belt receiver 4, and the driving belt 3 is moved through the belt receiver 4 to its section zo, z.
i.

Z2. The sections lO2'li, Z2. Z3 . Zl, Z2.23・
...and the sections ZO, Zl, 22.73
... is detected on the conveyance path 1, and the article is detected in the section 20.
Zl, Z2. Section Z adjacent to the upstream side of Z3...
1. The four lowering drive bodies 5 of Z2.73... are operated to lower the belt receiver 4 to the section Zl adjacent to the upstream side.

Z2. A plurality of sensors 31, 32, . S3... and each section of the conveyance path 1 ZO, Zl, Z2. In Z3..., the sections zo, zi.

Z2. When there is item A in Z3..., the section Z1. Z2. This relates to a conveyor device that puts the conveyance rollers 2 of Z3... into a non-driving state, and the lowering drive body = 9-5 in a specific section Z4 of the intermediate portion of the conveyance path 1 is placed adjacent to the downstream side thereof. In a state where the sensor S4 in the section 13 detects the article A, it operates intermittently to raise and lower the belt receiver 4 in this specific section Z4.
The conveying roller 2 is driven intermittently.

(Function) The conveyor device of the present invention can identify the intermediate portion of the conveyance path 1;
The conveying roller 2 in section Z4 is moved to the adjacent downstream section Z.
By intermittently driving the product Δ in the state where the product Δ is present in the product 3, the product A in the front is intermittently pushed by the subsequent product Δ, and each section ZQ, Zl on the downstream side of the front.

22. This is to close the gap to the item Z3.

(Embodiment) An embodiment of the conveyor device of the present invention will be described with reference to FIGS. 1 and 2.

The basic structure and operation of this embodiment are the same as those of the conventional conveyor device explained based on FIGS. 3 to 5, so the same parts are given the same reference numerals and the explanation will be omitted. , only the different parts will be explained.

This conveyor device sets the middle part of the conveyance path 1 of the conventional conveyor device, for example, the fifth section 14 counting from the downstream side, as a specific section, and uses a valve v4 connected to an actuator 5 as a daytime driving body of this section Z4. Another electromagnetic valve VT is connected to the air boat, and this valve VT is also connected to an air source 6, and this valve VT is alternately switched by a timer T.

Therefore, similar to the conventional conveyor device, the item A is carried into the upstream side of the conveyance path 1, and the item A is sequentially transferred to each section 70.
．． Zl, 72. For those who stop at 73..., the item Δ is the interval 20. Zl, Z2. Sens 1 and 31 of Z3... and S2, 33... are driven to reach the upstream section 71. Z2゜73... is not driven, and the second
As shown in the figure, the center υ of the fourth section z3 from the downstream side
When S4 is actuated by the item A and the valve v4 in the upstream section Z4 is switched to the υ1 state, the actuator 5 in this section 14 is connected to the valve VT via the υ1 state of the valve v4. Since the valve VT is alternately switched between the air supply state and the exhaust state by the timer king, this section 1
Actuator 5 of 4 operates intermittently and belt receiver 4
repeats the rise and fall, and as a result, this fifth section 14
Since the conveyance roller 2 of A is driven intermittently, the subsequent article A
By intermittently pushing the item A in front, it is possible to reduce the distance between the items A in each section ZO, Zl, and Z2.23 on the downstream side of the front.

〔Effect of the invention〕

As described above, the conveyor device of the present invention intermittently drives the conveyance rollers in a specific section of the intermediate portion of the conveyance path when there is an article in the adjacent downstream section, so that the conveyor rollers in a specific section of the intermediate portion of the conveyance path are driven downstream with subsequent articles. Since the items in the sections on the side are intermittently pushed, it is possible to reduce the distance between hit items in each section on the downstream side and efficiently store a large number of items. Even if the items are completely in contact with each other, the line pressure applied to the items (in this case, the pressure between the items due to the conveying force of the conveyor) is only applied intermittently to a specific section in the middle. Therefore, it becomes smaller,
In particular, if the arrangement and number of specific sections that are driven intermittently and the time intervals between driving and non-driving are set well, the line pressure on the products can be minimized while keeping the products in close contact and efficiently. be able to.

[Brief explanation of the drawing]

FIG. 1 is a side configuration diagram of an embodiment of the conveyor device of the present invention, FIG. 2 is a side configuration diagram for explaining its operation, and FIG.
FIG. 4 is a side configuration diagram of a conventional conveyor device, FIG. 4 is a side configuration diagram for explaining its operation, and FIG. 4 is a side configuration diagram for explaining its drawbacks. A... Goods, 1... Conveyance path, 2... Conveyance rollers, 3...
Drive bell 1~. 4. Belt receiver, 5. W, actuator as M drive body, 20. Zl. Z2. Z3... Section of conveyance path 1, Sl, 32
．． S3...Sensor.

Claims (1)

[Claims] (1) A large number of conveyance rollers forming a conveyance path, an endless drive belt disposed along the bottom of each conveyance roller, and a conveyance path divided into sections along the bottom of the drive belt. A plurality of belt holders are provided independently for each section of the conveyance path, and each belt holder is independently raised and lowered, and when the belt holder rises, the driving belt is moved through the belt holder. A plurality of elevating and lowering drives are provided in each section of the conveyance path to detect items on the conveyance path in that section, and a plurality of elevating and lowering drives are provided in pressure contact with the conveyance rollers in the section to drive the conveyance rollers in that section. It is equipped with a plurality of sensors that actuate the elevating drive body in the section to lower the belt receiver and put the conveyance rollers in the section adjacent to the upstream side into a non-driving state, and in each section of the conveyance path, there is a product in that section. In this conveyor device, the conveyor rollers in the section adjacent to the upstream side are set to a non-driving state, and the sensor in the section adjacent to the downstream side A conveyor device characterized in that when an article is detected, the conveyor device operates intermittently to raise and lower a belt receiver in a specific section, and intermittently drives a conveyance roller in this specific section.