DE102020106906B4 - Stopper device for a conveyor for conveying piece goods, for example for a roller conveyor or a belt conveyor - Google Patents

Abstract

The invention relates to a stopper device (10) for a conveying means for conveying piece goods, for example for a roller conveyor or a belt conveyor, comprising a stopper element (20) with a stop element (22) and a guide element (24), the guide element (24) as an elongated element with a first end region (25) and a second end region (26) and a first plane (E1) and the stop element (22) as a plate-like element with a second plane (E2), a stop surface (22a) and one of the stop surfaces (22a) facing away from the rear side (22b) and wherein the stop element (22) is arranged on the second end region (26) of the guide element (24), - a guide slot (30) with a longitudinal axis (1), in which the guide element ( 24) is arranged to be movable essentially in the direction of the longitudinal axis (1), the guide slot (30) tapering in the direction transverse to the first plane (E1) in the direction of the first end region (25) is formed to the second end region (26), and a linear drive system (40) with a push rod (42) for moving the stopper element (20) between a first position in which the stop element (22) is arranged in a retracted position is, and a second position in which the stop element (22) is arranged in an extended position, the push rod (42) rotatable about a first axis of rotation (A1) with a coupling element (50) and the guide element (24) on its first The end region (25) is rotatably connected to the coupling element (50) about a second axis of rotation (A2), and at least one roller (55a, 55b) is arranged on the coupling element (50) for at least section-wise guidance on a guide surface (60), wherein the guide surface (60) is formed in this way

Description

The invention relates to a stopper device for a conveyor for conveying piece goods.

Stopper devices are known for a conveyor for conveying piece goods, for example a roller conveyor or a belt conveyor, in which a stopper element is arranged between a first position in which the stopper element is in a retracted position, in particular between the rollers of the roller conveyor or at the end of a belt of the belt conveyor , and a second position in which the stopper element is arranged in an extended position in which it protrudes in particular over the rollers of the roller conveyor or the belt of the belt conveyor. The movement is often linear. If piece goods transported on the conveyor, such as a pallet, which can weigh more than 1 t, hit the stopper element, known stopper devices have the disadvantage that a great deal of force is required to move the stopper element back from the second position to move to the first position, as the stopper element can become wedged.

As state of the art, the EP 1 902 982 A1 , DE 20 2010 000 331 U1 , DE 11 2012 006 149 T5 , U.S. 5,676,235 A and EP 0 193 740 A2 called.

The object of the invention is therefore to provide a stopper device for a conveyor for conveying piece goods, in particular for a roller conveyor or a belt conveyor, in which the stopper element can be moved in a simple manner from the second position to the first position, in particular also when a piece goods to be transported with a high weight have been moved against the stopper element.

The object of the invention is achieved by a stopper element for a conveying means for conveying piece goods, in particular for a roller conveyor or a belt conveyor, with the features of claim 1.

Advantageous configurations and developments of the invention are specified in the dependent claims.

The stopper device according to the invention for a conveyor for conveying piece goods, in particular for a roller conveyor or a belt conveyor, has a stopper element with a stop element and a guide element, the guide element as an elongated element with a first end region and a second end region as well as a first plane and stop element as plate-like element is formed with a second plane, a stop surface and a rear side facing away from the stop surface and wherein the stop element is arranged on the second end region of the guide element, a guide slot with a longitudinal axis in which the guide element is arranged essentially movable in the direction of the longitudinal axis, wherein the guide slot is formed tapering in the direction transverse to the first plane in the direction from the first end region to the second end region, and a linear drive system with a push rod for moving the stopper element between between a first position in which the stop element is arranged in a retracted position and a second position in which the stop element is arranged in an extended position, the push rod rotatable about a first axis of rotation with a coupling element and the guide element on its first end region is rotatably connected to the coupling element about a second axis of rotation, and wherein at least one roller for at least section-wise guidance is arranged on a guide surface on the coupling element, the guide surface being designed such that in the second position when the roller rests on the guide surface the guide element rests flat against a side wall of the guide slot and, when moving from the second position, the guide element is released from the side wall of the guide slot.

The tapering guide slot and the guide surface designed according to the invention in combination have the effect that in the second position the stopper element can be clamped in the guide slot, it being flat against a side wall of the guide slot. In particular, the stopper element is fixed without play in this position. In this position, even piece goods with a high weight of, for example, more than 1 t can be reliably stopped. Furthermore, the tapering guide slot and the guide surface designed according to the invention have the effect that as soon as the stopper element is moved out of the second position in the direction of the first position, the fixation or jamming is first released, in particular by removing the stopper element from the side wall of the Guide slot is released or lifted off, in particular by tilting the stopper element against the side wall of the guide slot. As a result of this movement, in particular at the same time the stopper element is released from the stopped piece goods. By releasing the fixation, the stopper element has the necessary play in order to be moved from the second position into the first position in a simple manner, in particular without great expenditure of force.

According to a preferred embodiment of the invention, the guide slot tapers with an opening angle of approximately 0.5 ° to 5 °, preferably of approximately 1 ° to 2 °. Such an opening angle is sufficient to be able to provide the play required for the movement from the second position into the first position after the play-free fixing has been released in the second position.

An advantageous development of the invention provides that the guide surface has a convex projection on which the roller rests in the second position. Such a guide surface can be produced simply and inexpensively.

The roller is preferably arranged on the coupling element between the first axis of rotation and the second axis of rotation, which enables a compact design.

The roller and / or the guide surface are particularly preferably made of steel. This favors a movement of the roller on the guide surface with as little friction as possible. A moving roller made of steel requires only a small amount of force on a guide surface made of steel and therefore has only low friction.

Advantageously, the second plane of the stop element intersects the first plane of the guide section at an angle which is smaller than 180 ° and larger than 90 °, preferably between 175 ° and 165 ° and particularly preferably about 170 °. The angle is measured in particular adjacent to the rear of the stop element. Such a configuration favors the introduction of the force into the stopper element when a piece goods are stopped by the stopper element.

The stopper element is preferably made of steel. As a result, the stopper element can have sufficient stability to also stop high weights.

A particularly advantageous development of the invention provides that the guide slot is made of brass or another sliding material. As a result, seizure of a stopper element made of steel can be avoided.

The direction of movement of the linear drive system is preferably arranged approximately parallel to the longitudinal axis of the guide slot. This enables a favorable power transmission.

The push rod is advantageously extended in the first position, in which the stop element is retracted, and is retracted in the second position, in which the stop element is extended. This enables a particularly compact construction of the stopper device.

An advantageous development of the invention provides that the linear drive system is an electrical or pneumatic linear drive system.

A stopper device according to the invention is particularly preferably used in a conveying means for conveying piece goods, for example a roller conveyor or a belt conveyor. A conveyor according to the invention for conveying piece goods, for example a roller conveyor or a belt conveyor, has a stopper device according to the invention.

• 1 eine perspektivische Ansicht eines Ausführungsbeispiels einer erfindungsgemäßen Stoppervorrichtung mit einem Stopperelement in der ersten Position, in welcher das Stopperelement eingefahren ist,
• 2 eine Ansicht von hinten der Stoppervorrichtung gemäß 1,
• 3 eine Schnittdarstellung bei Schnitt entlang der Linie B-B in 2,
• 4 eine Seitenansicht der Stoppervorrichtung gemäß 1 mit dem Stopperelement in der zweiten Position, in welcher das Stopperelement ausgefahren ist,
• 5 eine Ansicht von vorn auf die Stoppervorrichtung gemäß 4,
• 6 eine Ansicht von oben auf die Stoppervorrichtung gemäß 4 und
• 7 eine Schnittdarstellung bei Schnitt entlang der Linie A-A in 5.

An embodiment of the invention is explained in detail with reference to the following figures. Show it

• 1 a perspective view of an embodiment of a stopper device according to the invention with a stopper element in the first position in which the stopper element is retracted,
• 2 a view from behind of the stopper device according to 1 ,
• 3 a sectional view when sectioned along the line BB in 2 ,
• 4th a side view of the stopper device according to 1 with the stopper element in the second position in which the stopper element is extended,
• 5 a view from the front of the stopper device according to 4th ,
• 6th a view from above of the stopper device according to 4th and
• 7th a sectional view when sectioned along the line AA in 5 .

the 1 until 7th show different views of an embodiment of a stopper device 10 .

The stopper device 10 has a stopper element made, for example, of steel 20th on which a stop element 22nd and a guide element 24 includes.

The guiding element 24 is as an elongated or rod-like element with a first end region 25th and a second end region 26th educated. The elongated or rod-like guide element 24 may have a substantially rectangular cross-section with a front side 24a and a back 24b which in particular are parallel to the front 24a is arranged, and two each the front 24a and the back 24b connecting sides 24c , 24d which are arranged in particular parallel to one another. The guide element has a first plane E1 on, which in particular is parallel to the front 24a and to the back 24b runs.

The stop element 22nd is a plate-like element with a stop surface 22a and a rear side facing away from the stop surface 22b educated. The stop surface 22a and the back 22b are aligned parallel to each other and run parallel to a second plane E2 . If the stopper device is used as intended 10 this is so arranged in a conveyor for conveying piece goods, for example a roller conveyor or a belt conveyor, for example between two adjacent rollers of the roller conveyor or at the end of a conveyor belt of a belt conveyor, that the piece goods transported by the conveyor in one direction of movement v on the stopper device 10 is moved to, which is substantially perpendicular to the second plane E2 runs. The piece goods hit the stop surface 22a and is thus stopped in motion at a desired position.

The stop element 22nd is at the second end region 26th of the guide element arranged, in particular such that the stop side 22a of the stop element 22nd to the front 24a of the guide element 24 and the back 22b of the stop element 22nd to the back 24b of the guide element 24 connects. One of the guiding elements 24 remote edge of the stop element 22nd is a free edge 23 . In particular, the stop element 22nd such on the guide element 24 arranged that the second level E2 of the stop element 22nd the first level E1 of the guide element at an angle β intersects, which is smaller than 180 ° and larger than 90 °, preferably between 175 ° and 165 ° and particularly preferably about 170 °. The angle β lies in particular between the back 22b of the stop element 22nd and the back 24b of the guide element 24 . In other words is the stop element 22nd against the guide element 24 in particular arranged at an angle.

The stopper device 10 further comprises a guide slot 30th with a longitudinal axis l in which the guide element 24 essentially in the direction of the longitudinal axis 1 is arranged movably. In particular, the stopper element 20th such in the guide slot 30th arranged that the stop element 22nd one end over the guide slot 30th protrudes, while at the other end the first end area 25th over the guide slot 30th protrudes.

The guide slot 30th is in the direction transverse to the first level E1 , in particular essentially in the direction perpendicular to the first plane E1 , tapered, the tapering in one direction x from the first end region 25th to the second end region 26th is trained. In other words, is the guide slot 30th in the area in which the second end area 26th of the guide element 24 is arranged, narrower than in the area in which the first end region 25th of the guide element 26th is arranged, in the direction transverse to the first plane E1 . In the direction parallel to the first plane E1 and transverse to the longitudinal axis 1 the guide slot 30th Preferably the same width over its entire length b on.

The taper of the guide slot 30th in particular has an opening angle α from about 0.5 ° to 5 °, preferably from about 1 ° to 2 °.

The guide slot 30th has a first side wall 31 and a second side wall 32 which are aligned in particular with one another in such a way that the tapering described above results. In particular, the first side wall 31 and the second side wall 32 to do this in the opening angle α arranged inclined to each other. The first side wall 31 is the back 24b of the guide element 24 facing while the second side wall 32 the front 24a of the guide element 24 is facing.

The guide slot 30th can as in the illustrated embodiment by two profiles 35c , 35d be formed with a U-shaped cross-section, which are arranged with their open side facing one another and are arranged at a distance from one another, so that in each of the side walls 31 , 32 one over the length of the guide slot 30th running gap results. The guide element 24 such in the profiles 35c , 35d be arranged that the profiles 35c , 35d each one of the sides 24c , 24d of the guide element 24 encompass.

The guide slot 30th can be made of brass or some other sliding material. In particular, the profiles 35c , 35d be made of brass or some other sliding material.

The stopper device further comprises a linear drive system 40 with a push rod 42 . The push rod 42 has a longitudinal axis and is parallel to this in a direction of movement t movable, in particular from a cylinder 44 extendable and retractable into the cylinder. The linear drive system 40 can be used as an electric or pneumatic linear drive system 40 be trained. By means of the linear drive system 40 is the stopper element 20th between a first position in which the stop element 22nd is arranged in a retracted position (cf. 3 ), and a second position in which the stop element 22nd is arranged in an extended position (cf. 7th ), be moved. Preferably the linear drive systems are 40 and the push rod 42 apart from tilts in the order of magnitude of the opening angle α of the guide slot 30th roughly parallel to the longitudinal axis 1 of the guide slot 30th arranged. The linear drive system 40 can be arranged such that the push rod 42 in the first position in which the stop element 22nd is retracted, is extended and in the second position in which the stop element 22nd is extended, is retracted.

The push rod 42 is about a first axis of rotation A1 rotatable with a coupling element 50 and the guide element 24 at its first end 25th around a second axis of rotation A2 rotatable with the coupling element 50 tied together. Via the coupling element 50 is the translational movement of the push rod 42 on the guide element 24 and thus the stop element 22nd transferable.

On the coupling element 50 is at least a role 55a for at least partial guidance on a guide surface 60 arranged. In the present embodiment there are two roles 55a , 55b on both sides of the coupling element 50 arranged. At least one role 55a or the two roles 55a , 55b are in particular between the first axis of rotation A1 and the second axis of rotation A2 on the coupling element 50 arranged. The role 55a or the roles 55a , 55b can be made of steel. The guide surface is preferably also made of steel.

The guide surface 60 is designed in such a way that in the second position when the roller is in contact 55a or the roles 55a , 55b on the guide surface 60 the guide element 24 especially with its back 24b flat on the side wall 31 of the guide slot 30th and when moving from the second position, the guide element 24 from the side wall 31 of the guide slot 30th is resolved. The guide surface 60 can be designed for this purpose, for example, as an inclined ramp. To the plant of the guide element 24 flat on the side wall 31 of the guide slot 30th bring about, the guide surface 60 a convex protrusion 62 and in particular an adjoining sink 63 exhibit.

The stopper device 10 can be a receiving part 70 have in which the linear drive system 40 and the guide slot 30th are fixed. The receiving part 70 can have two side walls 70a , 70b have, between which the linear drive system 40 is held fixed. On the facing surfaces of the side cheeks, the guide slot 30th forming U-profiles 35c , 35d be arranged. Furthermore, in the side walls 70a , 70b one section each 60a , 60b the guide surface 60 be designed such that on the in the side wall 70a arranged section 60a the guide surface 60 the role 55a and on the one in the side cheek 70b arranged section 60b the guide surface 60 the role 55b is led.

• 3 zeigt die Stoppervorrichtung 10 mit eingefahrenem Anschlagelement 22. Die Stoppervorrichtung 10 ist dazu derart in einem Fördermittel, beispielsweise einem Rollenförderer oder einem Bandförderer, montiert, dass in dieser ersten Position die freie Kante 23 des Anschlagelements 22 unterhalb der Transportebene, beispielsweise der durch die Rollen des Rollenförderers oder durch das Band des Bandförderers vorgegebenen imaginären Fläche, auf welcher das Stückgut bewegt wird, angeordnet ist. In dieser ersten Position ist die Schubstange 42 des Linearantriebssystems 40 ausgefahren, insbesondere derart weit, dass die Rolle 55a außer Kontakt mit der Führungsfläche 60 ist. Das Stopperelement 20 ist durch die Schubstange 42 in dem Führungsschlitz 30 eingezogen derart, dass das Anschlagelement 22 eingefahren ist. Das Führungselement 24 ist aufgrund des sich verjüngenden Führungsschlitzes 30 in dem Führungsschlitz 30 mit Spiel geführt bewegbar.

The stopper device 10 can be used as follows:

• 3 shows the stopper device 10 with retracted stop element 22nd . The stopper device 10 is for this purpose mounted in a conveying means, for example a roller conveyor or a belt conveyor, that in this first position the free edge 23 of the stop element 22nd is arranged below the transport plane, for example the imaginary surface on which the item is moved, which is predetermined by the rollers of the roller conveyor or by the belt of the belt conveyor. The push rod is in this first position 42 of the linear drive system 40 extended, in particular so far that the role 55a out of contact with the guide surface 60 is. The stopper element 20th is through the push rod 42 in the guide slot 30th retracted such that the stop element 22nd has retracted. The guiding element 24 is due to the tapered guide slot 30th in the guide slot 30th guided with play movable.

Should one move in the direction of movement v moving piece goods are stopped, the stop element 22nd extended. This is done using the push rod 42 of the linear drive system 40 retracted. During this movement the roles meet 55a , 55b on the guide surface 60 , on which they initially roll along as if along a ramp, while the stopper element 20th in the guide slot 30th is extended further. Finally, the roles meet 55a , 55b on the convex protrusion 62 . This becomes the guide element 24 in the guide slot 30th tilted so that the back 24b of the guide element 24 on the side wall 31 of the guide element 24 flat and jammed. In particular, the stopper element is in this second position 20th Fixed without play in order to move in the direction of movement v against the stop element 22nd to be able to reliably stop approaching general cargo.

Should the stopper element 20th be retracted so that the cargo can be moved further, the push rod 42 extended again. As a result, the fixation or jamming is initially released, in particular by virtue of the fact that the rollers 55a , 55b over the convex protrusion 62 roll and a tilting movement of the coupling element 50 cause which the first end area 25th of the guide element 24 from the side wall 31 lifts off and thereby the stopper element 20th against the side wall 31 of the guide slot 30th is tilted. As a result of this movement, in particular the stop element is released at the same time 22nd of the stopped general cargo. By releasing the fixation, the stopper element is 20th in the guide slot 30th movable again with play in order to be able to be moved back from the second position back into the first position in a simple manner, in particular without great expenditure of force.

List of reference symbols

10

Stopper device

20th

Stopper element

22nd

Stop element

22a

Stop surface

22b

back

23

Edge

24

Guide element

24a

front

24b

back

24c

page

24d

page

25th

first end area

26th

second end area

30th

Guide slot

31

Side wall

32

Side wall

35c

profile

35d

profile

40

Linear drive system

42

Push rod

44

cylinder

50

Coupling element

55a

role

55b

role

60

Guide surface

60a

section

60b

section

62

head Start

63

Sink

70

Receiving part

70a

Sidewall

70b

Sidewall

v

Direction of movement

t

Direction of movement

E1

first floor

E2

second level

1

Longitudinal axis

x

direction

A1

first axis of rotation

A2

second axis of rotation

α

Opening angle

β

angle

b

broad

Claims (11)

Stopper device (10) for a conveyor for conveying piece goods, for example for a roller conveyor or a belt conveyor, comprising - a stopper element (20) with a stop element (22) and a guide element (24), the guide element (24) as an elongated element with a first end region (25) and a second end region (26) and a first plane (E1) and the stop element (22) as a plate-like element with a second plane (E2), a stop surface (22a) and one facing away from the stop surface (22a) Rear side (22b) is formed and wherein the stop element (22) is arranged on the second end region (26) of the guide element (24), - a guide slot (30) with a longitudinal axis (1) in which the guide element (24) essentially is arranged movable in the direction of the longitudinal axis (1), the guide slot (30) tapering in the direction transverse to the first plane (E1) in the direction from the first end region (25) to the second end rich (26) is formed, and - a linear drive system (40) with a push rod (42) for moving the stopper element (20) between a first position, in which the stop element (22) is arranged in a retracted position, and a second position , in which the stop element (22) is arranged in an extended position, the push rod (42) rotatable about a first axis of rotation (A1) with a coupling element (50) and the guide element (24) at its first end region (25) by a second axis of rotation (A2) is rotatably connected to the coupling element (50), and at least one roller (55a, 55b) is arranged on the coupling element (50) for at least section-wise guidance on a guide surface (60), the guide surface (60) is designed such that in the second position at Rest of the roller (55a, 55b) on the guide surface (60), the guide element (24) lies flat against a side wall (31) of the guide slot (30) and, when moving from the second position, the guide element (24) from the side wall (31) of the guide slot (30) is released. Stopper device according to Claim 1 , characterized in that the guide slot (30) tapers with an opening angle (α) of approximately 0.5 ° to 5 °, preferably of approximately 1 ° to 2 °. Stopper device according to one of the preceding claims, characterized in that the guide surface (60) has a convex projection (62) on which the roller (55a, 55b) rests in the second position. Stopper device according to one of the preceding claims, characterized in that the roller (55a, 55b) is arranged on the coupling element (50) between the first axis of rotation (A1) and the second axis of rotation (A2). Stopper device according to one of the preceding claims, characterized in that the roller (55a, 55b) and / or the guide surface (60) are made of steel. Stopper device according to one of the preceding claims, characterized in that the second plane (E2) of the stop element (22) intersects the first plane (E1) of the guide element (24) at an angle (β) which is less than 180 ° and greater than 90 °, is preferably between 175 ° and 165 ° and is particularly preferably about 170 °. Stopper device according to one of the preceding claims, characterized in that the stopper element (20) is made of steel. Stopper device according to one of the preceding claims, characterized in that the guide slot (30) is made of brass or another sliding material. Stopper device according to one of the preceding claims, characterized in that the direction of movement (t) of the linear drive system (40) is arranged approximately parallel to the longitudinal axis (1) of the guide slot (30). Stopper device according to one of the preceding claims, characterized in that the push rod (42) is extended in the first position in which the stop element (22) is retracted and retracted in the second position in which the stop element (22) is extended is. Stopper device according to one of the preceding claims, characterized in that the linear drive system (40) is an electrical or pneumatic linear drive system.

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