EP3311706A1 - Conveying system with parallel gear - Google Patents

Abstract

The invention relates to a conveyor system for goods with a means of a coil spring having a drive device in a conveying direction loadable slide, wherein the goods slide has a housing with a damping and / or retarding device arranged therein with a housing-fixed part and a rotatable relative thereto part. The coil spring is non-positively and / or positively fixed to a rotatably mounted in the housing roller assembly. In addition, the rotatable part of the damping and / or deceleration device on the roll assembly can be rolled. With the present invention, the damping and / or deceleration device is better utilized.

Description

The invention relates to a conveyor system for goods with a means of a coil spring having a drive device in a conveying direction loadable slide, wherein the goods slide has a housing with a damping and / or retarding device arranged therein with a housing-fixed part and a rotatable relative thereto part.

From the DE 20 2013 006 274 U1 Such a conveyor system is known. In a series arrangement of the drive device and the damping and / or deceleration device, the coil spring is fixed to a hub which sits on the damper shaft.

The present invention has for its object to better exploit the damping and / or deceleration device.

This problem is solved with the features of the main claim. For this purpose, the coil spring is positively and / or positively fixed to a rotatably mounted in the housing roller assembly. In addition, the rotatable part of the damping and / or deceleration device on the roll assembly can be rolled.

Between the coil spring and the housing-fixed part of the damping and / or deceleration device at least one gear stage is arranged. Hereby, a rotational movement of the roll assembly can be converted into a rotational movement of the rotatable part of the damping and / or deceleration device. The respective speeds behave in the inverse ratio of the pitch circle diameter. The Wälzgetriebe can be designed with parallel, intersecting or intersecting axes. Here, the rolling wheels may be formed with or without teeth. For example, thus even at low speeds of the roll assembly, the damping and / or delay assembly can be effectively used. Also, a damping and / or deceleration device with low torque and thus small size can be used. The damping and / or deceleration device is thereby used in a wide range of applications.

The coupling between the coil spring and the fixed part of the damping and / or deceleration device can be decoupled at least in one direction of rotation.

For example, the damping and / or retarding device can be without effect when the goods slide is displaced in an insertion direction oriented in the opposite direction to the conveying direction. Alternatively, a damping and / or deceleration device can be used, which causes no damping in a direction of rotation.

Figur 1:

Fördersystem;

Figur 2:

Warenschieberbaugruppe;

Figur 3:

Isometrischer Teil-Längsschnitt der Warenschieberbaugruppe;

Figur 4:

Warenschiebergehäuse;

Figur 5:

Walzenkörper mit Sperrrad uns Lagerzapfen;

Figur 6:

erstes Wälzrad;

Figur 7:

Dämpfungs- und oder Verzögerungsvorrichtung;

Figur 8:

Niederhalter.

Further details of the invention will become apparent from the dependent claims and the following description of schematically illustrated embodiments.

FIG. 1:

Conveyor system;

FIG. 2:

Pusher assembly;

FIG. 3:

Isometric partial longitudinal section of the goods slide assembly;

FIG. 4:

Pusher housing;

FIG. 5:

Roller body with ratchet wheel and bearing pin;

FIG. 6:

first rolling wheel;

FIG. 7:

Damping and / or retarding device;

FIG. 8:

Stripper plate.

The FIG. 1 shows a conveyor system (10) with a support and guide rail (20) and with a goods slider assembly (30). On the support and guide rail (20) goods between a pusher (31) of the goods slider assembly (30) and, for example, a front, not shown here stop can be stored. After removal of a product moves a drive device (60) of the goods slider assembly (30) the goods slide (31) along the support and guide rail (20) in a conveying direction (11), the to a at the front end of the support and guide rail (24) arranged front anchor (25) is oriented. The conveyor system can also be designed without support and guide rail (20).

If more goods are to be placed on the carrying and guide rail (20), the goods slide (31) is displaced counter to the conveying direction (11) in an insertion direction (12). The goods are inserted between the goods slide (31) and the front end (24) of the support and guide rail (20). After insertion, the stored goods are pressed by means of the drive device (60), for example in the direction of the stop.

The support and guide rail (20) is an at least approximately U-shaped rail whose upper edge regions (21) point inwards. The upwardly facing areas of these edge regions (21) form supporting and sliding surfaces (22). When conveying the goods, these are moved along the carrying and sliding surfaces (22) in the conveying direction (11).

The plane of the support and sliding surfaces (22) together with the support and guide rail (20) defines a guide space (23). In this at least approximately cuboid-shaped space (23) of the goods slide (31) is guided. The goods slide (31) has this guide rails (32) which engage under the edge regions (21) of the support and guide rail (20).

The Figures 2 and 3 show the goods slider assembly (30) in an isometric view and in a partial longitudinal section. The main cutting plane of the FIG. 3 is a vertical center longitudinal plane of the conveyor system (10). In the goods slider assembly (30), the drive device (60) and a damping and / or deceleration device (100) in the goods slide (31) are mounted or arranged.

The goods slide (31), cf. FIG. 4 , Includes a housing (34), at its in the conveying direction (11) front end a thrust plate (33) is arranged. For example, the thrust shield (33) is integrally formed on the housing (34).

The housing (34) is constructed at least approximately cuboid. In the exemplary embodiment, it is designed to be open at its rear side (35). But it can also be designed with a closed or closable rear wall. On the opposite side walls (36, 37) it has in each case one to the interior (38) oriented guide groove (39), for example, from the back (35) to half of the length of the goods slide (31) extends. The two mutually mirror-inverted guide grooves (39) are each formed rounded at their inner ends. Here have the side walls (36, 37) Lagerdurchbrüche (41) with a circular cross-section. The guide grooves (39) can also be formed without the bearing openings (41).

Above the guide grooves (39), the side walls (36) on two opposite openings (42). These have a circular cross-sectional area and form pin receptacles (42).

On the right side wall (36) of the housing (34) in the exemplary embodiment, a receiving opening (43) is arranged above the plane of the guide grooves (39). This has a central region (44) with a circular cross section and two extensions (45) with at least approximately rectangular cross section. Optionally, the recording breakthrough (43) only the two Extensions (45). An indentation can then be introduced on the inner wall of the side wall (36) oriented toward the interior (38). All of these openings (41-43) may be covered on the outside of the product pusher.

On the interior (38) oriented surface of the front boundary of the housing (34) forming the thrust shield (33) two boundary tabs (46) are arranged one above the other. The limiting lugs (46) in the embodiment insertion bevels (47).

The thrust shield (33) is plate-shaped and projects beyond the side walls (36, 37) and over the ceiling (48) of the housing (34). It has a constant thickness and is inclined for example by an angle of 2 degrees to a normal plane of the conveying direction (11). Here, the lower end (49) of the thrust shield (33) further in the conveying direction (11) than the upper end (51).

Below the thrust shield (33) has a feed slot (52) is formed in the product pusher (31). In a goods slide (31) inserted into the support and guide rail (20), this passage slot (52) lies in the guide space (23) of the support and guide rail (20). The passage slot (52) has a rectangular cross-sectional area. Above the passage slot (52) guide surface sections (53, 54) are formed on the underside of the thrust shield (33). In the exemplary embodiments illustrated, these comprise horizontal guide surface sections (53) adjoining the feedthrough slot (52) and a section (54), which is adjacent thereto and oriented toward the interior (38) of the housing (34), for example at an angle of 30 degrees the first mentioned sections (53) is inclined.

The drive device (60) comprises a roller assembly (61) and a rechargeable spring energy store (81). This spring energy store (81) is formed by a spiral spring (81). The tension spring, e.g. formed as a scroll spring coil spring (81) has a rectangular cross-section. With one end (82), the coil spring (81) at the front end of the support and guide rail (20) is fixed. For example, it may be attached to the front anchor (25) near the stop. The other end of the coil spring (81) surrounds the roller assembly (61) in the circumferential direction and is fixed to this non-positively and / or positively.

The FIG. 5 shows as parts of the roll assembly (61) has a roller body (62) with a cylindrical envelope surface, which has at its two ends in each case a central bearing journal (63). When the roller assembly (61) is installed, the bearing journals (63) form an axis of rotation (65) of the roller assembly (61). This is arranged transversely to the conveying direction (11) and parallel to the supporting and sliding surfaces (22). The bearing journals (63) can have end faces (64) arranged at an angle to the axis of rotation (65). The lateral surface (66) of the roller body (62) has steps (67) which are oriented parallel to the axis of rotation (65). Each of the four stages (67), for example, comprises a first surface (68), for example inclined by 5 degrees to a tangential plane of the envelope surface, and a second step surface (69) oriented normal thereto.

On the roller body (62) a ratchet wheel (71) is integrally formed. This ratchet wheel (71) has along its circumference, for example, eight locking lugs (72). The individual latching nose (72) has a blocking surface (73), which is clamped, for example, by a normal vector to the axis of rotation (65) and a vector aligned in the direction of the axis of rotation (65). At the in radial Towards the outer end of the blocking surface (73), a sliding surface (74) connects a blocking surface (73) with the foot line (75) of the next blocking surface (73). All blocking surfaces (73) are oriented in the same circumferential direction.

On the ratchet wheel (71) is seated as a further component of the roll assembly (61) has a first Wälzrad (91). In the exemplary embodiment, this is designed as a spur gear with straight teeth toothed pulley. She has 38 teeth. The toothed disc (91) has a central bore with, for example, two pawls (92), cf. FIG. 6 , These cantilever pawls (92) point in the same circumferential direction. In the assembled state, cf. 3, the pawls (92) lie, for example, on the sliding surfaces (74) and can be present at the blocking surfaces (73). The pawls (92) are elastically deformable, so that they slide against the latching direction (74) in a relative movement of the toothed disc (91) to the ratchet wheel (71). At the side facing the product pusher housing (34), the first rolling gear (91) has a circumferential sliding ring (93).

Instead of the illustrated spur toothing, the Wälzrad (91) may have a helical toothing. A training as bevel gear, worm, worm wheel or friction wheel, etc. is conceivable.

The FIG. 7 shows a damping and / or deceleration device (100). This has a fixed part (101) and a relative to this rotatable part (102). These parts (101, 102) form a rotary damper (103) with a fastening adapter (104) and a second rolling wheel (105).

The mounting adapter (104) is arranged on the example cylindrically shaped housing of the rotary damper (103). He In the exemplary embodiment has two clips (106) which protrude at least approximately radially outward. By means of the mounting adapter (104), the damping and / or retarding device (100) in the goods slide housing (34) is attached. It is also conceivable to form the attachment by means of a bayonet connection, a fastening means, etc.

The rotatable shaft (107) of the rotary damper (103) projects centrally out of the rotary damper housing. It may have a constant cross-section or be stepped. In the exemplary embodiment, the shaft (107) has an at least approximately rectangular cross section.

On the shaft (107) sits the second Wälzrad (105), which is formed for example as a pinion (105) with a straight toothing. The module of the toothing corresponds to the module of the teeth of the first Wälzrads (91). The pinion (105) has e.g. 11 teeth. The second rolling gear (105) may also be formed as a helical spur gear, bevel gear, worm, worm wheel or friction wheel, etc.

In the exemplary embodiment, the rotary damper (103) is constructed such that it dampens in both directions of rotation (108, 109). However, it is also conceivable to use a rotational damper (103), which dampens in one direction of rotation (108, 109) and has a freewheel in the other direction of rotation (109, 108). The damping direction is then in the representations of Figures 3 and 7 for example, oriented in a clockwise direction.

In the FIG. 8 a hold-down (110) is shown. This is a cup-shaped component with a transverse trunnion (111). This on the outside of the hold-down cup (112) integrally formed trunnions (111) has pin ends (113) on both sides. The end faces of these pin ends (113) in the exemplary embodiment form an acute angle whose apex line lies in the conveying direction (11) in front of the supporting pin (111). In the exemplary embodiment, the hold-down shell (112) has a horizontal section (114) in the front region in the conveying direction (11) and a vertically oriented section (115) at the rear.

During assembly, the damping and / or retarding device (100) in the receiving opening (43) of the product pusher (31) is inserted and locked by means of both clips (106) in the product pusher housing (34). The pinion (105) points into the interior (38) of the product pusher (31).

On the roller body (62), the scroll spring (81) is fixed. For example, it is by means of a hook on one
Stage (67) of the roller body (62) held. On the ratchet wheel (71), the first Wälzrad (91) is placed, so that the plan side (94) to the roller body (62) shows. This pre-assembly unit is used, for example, together with the hold-down device (110) in the goods slide housing (34). Here lock the bearing pin (63) of the roll assembly (61) in the bearing openings (41) of the goods slide housing (34). The horizontal portion (114) of the blank holder (110) engages in the space between the limiting lugs (46) and the pin ends (113) of the support pins (111) engage in the pin receivers (42). The free end (82) of the spring (81) is guided through the passage slot (52) and fastened, for example, to the front anchor (25). The goods slide housing (34) is inserted into the support and guide rail (20), so that the guide strips (32) engage under the edge regions (21). Another order of assembly is conceivable.

To insert the goods, the goods slide (31) along the support and guide rail (20) in the insertion direction (12) is moved. Here, the scroll spring (81) is unwound from the roll body (62), which is in the representation of the FIG. 2 counterclockwise and in the illustration of FIG. 3 turns clockwise. The ratchet wheel (71) integrally formed on the roller body (62) rotates together with the roller body (62).

The damping and / or retarding device (100) inhibits free rotation of the first rolling gear (91) so that the ratchet wheel (71) slides along the pawls (92). As soon as the pawls (92) jump onto the next sliding surface (74), they slide along this sliding surface (74). The ratchet wheel (71) and the pawls (92) form a freewheel in this freewheeling direction of rotation (97). The first rolling gear (91) may stop or e.g. rotate at a slower speed.

Once the goods are inserted, the goods slide (31) is released. He charged by the force of the spring energy storage (81), the goods used in the conveying direction (11). After removing a product, the remaining goods are moved by means of the goods slider assembly (30) in the conveying direction (11).

Here, the winding coil spring (81) rotates the roller body (62) in the representation of FIG. 2 clockwise and in the representation of FIG. 3 counterclockwise. This direction of rotation (96) is referred to below as Lastrotationsrichtung (96). The ratchet wheel (71) abuts against the cantilevered ends (95) of the pawls (92) and carries them along. The first rolling gear (91) rotates synchronously with the roller body (62).

The first Wälzrad (91) drives the pinion (105). The ratio of the speeds of the two Wälzräder (91, 105) corresponds in the embodiment, the inverse ratio of their numbers of teeth. In the embodiment, the Wälzgetriebe (91, 105) has a gear ratio to fast, so that the second Wälzrad (105) at a higher speed than the first Wälzrad (91) rotates. For example, the transmission ratio is between 1.5 and 10. The required for a delay and / or damping torque of the rotary damper (103) and thus its size decreases with increasing translation. Thus, in the embodiment, a cost-effective rotary damper (103) can be used with a small footprint.

The rotation of the pinion (105) arranged in a form-fitting manner on the damper shaft (107) is delayed by means of the rotary damper (103). The pinion (105) rotates in a damper rotation direction (108). Hereby, via the Wälzgetriebe (91, 105) and the directional locking mechanism (71, 92), the rotation of the roller body (62) is delayed. The coil spring (81) rolls in a largely uniform manner. The hold-down (110) prevents lifting of the scroll spring (81). The goods are moved evenly and without stop.

The Wälzgetriebe (91, 105) may be designed decoupled. For example, the roll assembly (61) can be arranged elastically mounted and displaceable relative to the damping and / or retarding device (100) by means of a push-button. The method of the product pusher (31) in the conveying direction (11) takes place as described above. When moving the product pusher (31) in the insertion direction (12), the button is pressed. The Wälzgetriebe (91, 105) is decoupled, so that the first Wälzrad (91) rotates freely with the roller body (62).

The damping and / or deceleration device (100) remains at rest.

It is also conceivable that the bearing journals (63) of the roll assembly (61) lie in the mounting position in a stable transition position between horizontal tracks and in the conveying direction (11) obliquely upwardly facing tracks. In a rapid displacement of the product pusher (31) in the insertion direction (12), the bearing pin (63) along with the roller assembly (61) along the inclined tracks, wherein the wheels (91, 105) of the Wälzgetriebes (91, 105) are separated , Once the goods slider assembly (30) is kept still, the roller assembly (61) returns to its original position. The Wälzgetriebe (91, 105) is coupled again. Also in this embodiment, the conveying takes place in the conveying direction as described in connection with the first embodiment.

In an embodiment according to the last two embodiments, the ratchet wheel (71) and the pawls (92) can be omitted.

Combinations of the embodiments are conceivable.

LIST OF REFERENCE NUMBERS

10

conveyor system

11

conveying direction

12

insertion

20

Support and guide rail

21

border areas

22

Supporting and sliding surfaces

23

guide space

24

front end of (20)

25

front anchor

30

Pusher assembly

31

pusher

32

guide rails

33

dozer blade

34

Housing, goods slide housing

35

back

36

Sidewall right

37

Sidewall, left

38

inner space

39

guide

41

Storage breakthroughs

42

Breakthroughs, pin shots

43

Recording breakthrough

44

central area

45

extensions

46

limiting noses

47

bevels

48

blanket

49

lower end of (32)

51

upper end of (32)

52

Through-slot

53

Guide surface sections

54

Guide surface section

60

driving device

61

roller assembly

62

Roller, roller body

63

pivot

64

Face of (63)

65

axis of rotation

66

Lateral surface of (62)

67

stages

68

first surface

69

second step surface

71

Ratchet wheel, Richtgesperreteil

72

locking lugs

73

blocking surface

74

sliding surface

75

foot line

81

Spring energy storage, spiral spring, scroll spring

82

End of (81)

91

first rolling gear, toothed disk, Wälzgetriebeteil

92

Richtgesperreteil, pawl

93

sliding ring

94

plan page

95

End of (92)

96

Last direction of rotation

97

Freewheeling direction

100

Damping and / or deceleration device, damping device

101

fixed part, fixed part of (100)

102

rotatable part, rotatable part of (100)

103

rotary damper

104

mounting adapter

105

second Wälzrad, pinion, Wälzgetriebeteil

106

clips

107

Shaft of (103), damper shaft

108

Direction of rotation of (102), damper rotation direction

109

Direction of rotation of (102)

110

Stripper plate

111

supporting journal

112

Hold-down tray

113

pin ends

114

horizontal section

115

vertically oriented section

Claims (10)

Conveying system (10) for goods with a by means of a spiral spring (81) having drive device (60) in a conveying direction (11) loadable goods slide (31), wherein the goods slide (31) has a housing (34) with a damping and / or retarding device (100) having a housing-fixed part (101) and a part (102) rotatable relative thereto, characterized - That the coil spring (81) on a in the housing (34) rotatably mounted roller assembly (61) is positively and / or positively fixed and - That the rotatable part (102) of the damping and / or retarding device (100) on the roll assembly (61) is rollable. Conveying system (10) according to claim 1, characterized in that the roller assembly (61) comprises a first rolling gear (91) and the rotatable part (102) of the damping and deceleration device (100) comprises a second rolling wheel (105) Wälzräder (91, 105) formed Wälzgetriebe (91, 105) has a speed ratio. Conveying system (10) according to claim 1 or 2, characterized in that the roller assembly (61) and the damping and / or retarding device (100) combinable with each other Wälzräder (91, 105). Conveyor system (10) according to claim 3, characterized in that the rolling wheels (91, 105) have spur gears. Conveying system (10) according to claim 1, characterized in that upon movement of the product pusher (31) in the conveying direction (11), the entire roll assembly (61) is rotatable in a Lastrotationsrichtung (96). Conveyor system (10) according to claim 1, characterized in that during a movement of the product pusher (31) in the conveying direction (11), the rotatable part (102) of the damping and / or deceleration device (100) in a damping rotation direction (108) is rotatable , Conveying system (10) according to claims 5 and 6, characterized in that the roller assembly (61) directed against the Lastrotationsrichtung (96) and / or the damping and / or retarding device (100) oriented opposite to the damping rotational direction (108), have at least approximately free of resistance freewheeling direction (97). Conveying system (10) according to claim 1, characterized in that the roller assembly (61) has a roller body (62) and a thereto by means of a directional locking mechanism (71, 92) mounted rolling gear (91). Conveyor system (10) according to claim 1, characterized in that the housing-fixed part (101) of the damping and / or retarding device (100) by means of a latching connection to the housing (34) is attached. Conveyor system (10) according to claim 1, characterized in that in the housing (34) has a hold-down (110) is arranged, which engages over the wound on the roller body (62) spiral spring (81).

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