CN210064150U

CN210064150U - Turning belt conveyor

Info

Publication number: CN210064150U
Application number: CN201920259648.9U
Authority: CN
Inventors: 李建军
Original assignee: Siemens Logistics Automation Systems Beijing Co Ltd
Current assignee: Siemens Logistics Automation Systems Beijing Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-02-14
Anticipated expiration: 2029-02-28

Abstract

The utility model provides a turning belt conveyor, it includes a bar belt subassembly of arranging in between feed end and the discharge end. This strip belt subassembly includes: a drive shaft, and at least two strip-shaped belt units driven by the drive shaft, each of the strip-shaped belt units comprising: the driving roller is sleeved and fixed on the driving shaft; the strip-shaped belt is wound on the driving roller and driven to rotate by the driving roller; wherein, the strip belts are arranged in parallel and form a conveying operation surface together; the drive rollers of different belt units have different radii and the radii of the drive rollers are set such that the different belt units move with a predetermined speed difference. The utility model discloses a turn belt feeder simple structure, the adjustment is convenient, and the maintenance cost is low.

Description

Turning belt conveyor

Technical Field

The utility model relates to a band conveyer in commodity circulation field especially relates to turn belt feeder.

Background

Belt transport is a common article transport means in the field of logistics. Most of belt transmission is along sharp transmission, and sharp belt conveyor mechanism is simple, has higher efficiency concurrently. In practical applications, due to restrictions on site construction, space, and the like, or the need for path design, in addition to linear conveyance, a region requiring a turn may occur in the path of belt conveyance. Thus, turning belt conveyors are an essential piece of equipment in belt conveyor systems.

Fig. 1 shows a conventional turning belt conveyor which uses a sector belt to achieve the conveyance in the turning area. As shown in fig. 1, the conventional turning belt conveyor C1 includes an inlet end 10, an outlet end 20, and a sector belt unit C300 disposed between the inlet end 10 and the outlet end 20. The fan belt unit C300 differs from the linear belt unit in that the endless rotating belt forms a generally fan-shaped conveying surface so that material on the fan belt unit C300 moves in an arc through the turning area.

Due to the special shape, the fan-shaped belt is difficult to continuously run for a long time in a tensioned state and is easy to loosen. In addition, such a conventional belt conveyor generally uses a chain drive, and the running track of the chain is controlled by grooves. This kind of traditional turn belt feeder operation is not smooth and easy, and the belt easily takes off the pine, and the adjustment degree of difficulty is big, and the noise is big, and easy wearing and tearing require very high to the maintenance moreover, lead to the operation maintenance cost to be high. Further, as the operating life increases, the failure rate also increases significantly. CN108639722A discloses a turning belt conveyor using a plurality of strip belt conveyors combined in parallel to replace the fan-shaped belt, and different strip belt conveyors are driven by mutually separate driving shafts to have different moving speeds, so as to realize turning conveying.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turning belt feeder, it can effectively avoid the problem that the belt loosened easily among the fan-shaped belt feeder of tradition. Another object of the utility model is to provide a turning belt feeder, its simple structure, adjustment are convenient, and the maintenance cost is low moreover

In order to achieve the above object, the utility model provides a turning belt feeder, turning belt feeder has a feed end and a discharge end, wherein the direction of feed end department with the direction of discharge end department becomes a predetermined angle, turning belt feeder includes: a strip belt assembly disposed between said feed end and said discharge end and formed with a conveying surface, said strip belt assembly comprising: a drive shaft; at least two strip-shaped belt units, each strip-shaped belt unit comprising: the driving roller is sleeved on the driving shaft and driven by the driving shaft to rotate; the strip belt is wound on the driving roller and driven by the driving roller to rotate circularly; the strip belts included by different strip belt units are arranged in parallel on the conveying operation surface; the radii of the drive rollers included in the different strip belt units are different, and the radii of the drive rollers are set so that the strip belts move according to a predetermined speed difference.

In such a manner, the strip belts of at least two strip belt units are arranged in parallel to form a working surface of a belt conveying turning area, so that the articles conveyed on the working surface can complete turning action. Since each of the at least two strip-shaped belt units corresponds to a linear belt conveyor, there are advantages of the linear belt conveyor. Compared with a fan-shaped belt conveyor, the transmission belt of the linear belt conveyor is not easy to loosen, and the linear belt conveyor also has the advantages of simple structure, convenience in adjustment, low maintenance cost and the like.

Also, in the above manner, the different strip belt units comprise drive rollers of different radii and are arranged such that the different strip belts move according to a predetermined speed difference. The conveyed article can rotate due to the linear speed difference of different strip belts while travelling on the conveying operation surface, so that the article can smoothly pass through a turning area.

In addition, in certain operating environments, there are also requirements on the attitude of the article being conveyed, for example when it is necessary to label or otherwise treat a fixed surface of a standard product. The rotation of the articles caused by the speed difference of the different strip belts can just adjust the posture of the conveyed articles, so that the subsequent treatment is convenient, and the belt conveyor is particularly significant for conveying lines which need to treat large batches of articles.

In a further exemplary embodiment, it is preferred that the ratio of the radii of the drive rollers of the at least two strip-shaped belt units and the ratio of the lengths of the respective strip-shaped belts on the conveying surface are equal. By adopting the arrangement mode, the moving time of any point on different strip belts on the transportation operation surface can be equal. Therefore, the conveyed articles can rotate to a proper angle while advancing, and the phenomenon that the articles finish turning action due to insufficient or overlarge rotating angle is influenced is avoided.

In yet another exemplary embodiment of the turning belt conveyor, the belt assembly further comprises a tensioning shaft disposed parallel to the drive shaft; each strip belt unit still includes a tensioning roller, and strip belt is around locating on this tensioning roller, the tensioning roller passes through the bearing and installs on the tensioning shaft, it can adjust the cover and locate on it the tensioning degree of strip belt.

In such a manner, the strip-shaped belt and the driving roller can be tightly attached to provide enough friction force, so that the driving roller can drive the strip-shaped belt to move circularly. Simultaneously, will through the bearing the tensioning roller is installed on the tensioning shaft, can be so that different tensioning rollers can be located the strip-type belt on it along with the cover and independently rotate with different angular velocity.

In another exemplary embodiment of the turning belt conveyor, the tensioning rollers are independently detachable. In such a manner, the tensioning rollers can be independently disassembled, so that a faulty tensioning roller can be replaced conveniently, or tensioning rollers with different radiuses can be replaced, so as to adjust the tensioning degree of the strip-shaped belt, and ensure that the strip-shaped belt can be effectively driven to move circularly.

In a further exemplary embodiment of the turning belt conveyor, the tensioning roller comprises two roller parts which can be snapped onto each other on bearings in predetermined positions on the tensioning shaft.

In this way, the tensioning roller can be easily removed or mounted. The two roller components can be clasped on the tensioning shaft and are buckled and fixed to form a complete roller. Preferably, the two roller elements may be further fastened using fasteners such as bolts. More preferably, two identical roller assemblies may be used to reduce manufacturing costs and difficulty.

In a further exemplary embodiment of the turning belt conveyor, the turning belt conveyor comprises two strip-shaped belt assemblies arranged adjacent to one another, one of which is arranged close to the feed end and the other of which is arranged close to the discharge end, the conveying surface of the strip-shaped belt assembly close to the feed end being higher than the conveying surface of the strip-shaped belt assembly close to the discharge end.

Seams exist at the adjacent positions of the strip-shaped belt component close to the feeding end and the strip-shaped belt component close to the discharging end. In this manner, a conveyed article is prevented from becoming jammed or stuck at the seam. The height difference may be determined in advance by taking into consideration the size, characteristics (e.g., soft bag, hard paper box), passability (e.g., whether or not there are accessories such as straps and hang tags that are easily caught) of the specific transported article.

In a further exemplary embodiment of the turning belt conveyor, the strip-shaped belt assemblies near the feed end and the strip-shaped belt assemblies near the discharge end comprise the same number of strip-shaped belt units, and the strip-shaped belts of the corresponding strip-shaped belt units move at the same speed on the respective conveying surfaces.

In such a way, the corresponding strip belts of the two strip belt assemblies on the conveying operation surface have no speed difference, so that conveyed articles can smoothly pass through the joint of the two strip belt assemblies and move from the conveying operation surface of the feeding end strip belt assembly to the conveying operation surface of the discharging end strip belt assembly.

In yet another exemplary embodiment of the turning belt conveyor, the turning belt conveyor further comprises a motor that simultaneously drives the rotation of the drive shafts of the two strip belt assemblies.

In such a way, one motor is used for driving two strip-shaped belt assemblies simultaneously, so that the cost can be saved, the start and stop of the two assemblies can be synchronous, and the movement linear speeds of the corresponding strip-shaped belts on the two strip-shaped belt assemblies can also be better synchronous.

In a further exemplary embodiment of the turning belt conveyor, the turning belt conveyor comprises a machine frame which is designed to accommodate the strip-shaped belt component and which comprises a height adjustment device for adjusting the height of the conveying surface of the strip-shaped belt component.

In such a way, when the types of the articles conveyed by the turning belt conveyor are changed, the height of the conveying working surface of the strip-shaped belt assembly and/or the constant-speed strip-shaped belt assembly can be conveniently adjusted by the height adjusting device on the machine frame so as to adapt to different types of conveyed articles.

In a further exemplary embodiment of the turning belt conveyor, the turning belt conveyor comprises two side flaps arranged between the feed end and the discharge end, which are respectively located on both sides of the strip-shaped belt assembly and are arranged perpendicular to the conveying surface.

The side baffle plate in the mode can play a limiting role, help the conveyed object with larger size to better adjust the posture in the turning process, and prevent the conveyed object from falling off accidentally. For the turning belt conveyor comprising two or more strip belt assemblies, the side baffle is positioned at the turning position of the turning belt conveyor to form an arc shape.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention. In the drawings, similar components or features may have the same reference numerals.

FIG. 1 schematically illustrates a top view of a conventional turning belt including a sector belt;

figure 2 schematically illustrates a two-component turning belt machine comprising two strip-shaped belt components according to the present invention;

figure 3 schematically illustrates a bottom perspective view of a dual component strap assembly in accordance with the present invention;

figure 4 schematically illustrates the drive shaft and drive roller of a turning belt conveyor according to the present invention.

Figure 5 schematically illustrates a top view of a turning belt machine including a strip belt assembly in accordance with the present invention.

Reference numerals

C1: traditional turning belt conveyor

C300: sector belt unit

2: double-component turning belt conveyor

3: turning belt conveyor

10: feed end

20: discharge end

30: strip belt assembly

300: strip belt unit

S: conveying working surface

S1: conveying operation surface of strip-shaped belt component close to feeding end

S2: conveying operation surface of strip-shaped belt assembly close to discharge end

301: drive shaft

302: tensioning shaft

3001: driving roller

3002: strip belt

3003: tensioning roller

40: electric machine

50: rack

60: side baffle

Detailed Description

The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with respect to some examples may also be combined in other examples.

As used herein, the term "include" and its variants mean open-ended terms in the sense of "including, but not limited to. The term "based on" means "based at least in part on". The terms "one embodiment" and "an embodiment" mean "at least one embodiment". The term "another embodiment" means "at least one other embodiment". The terms "first," "second," and the like may refer to different or the same object. Other definitions, whether explicit or implicit, may be included below. The definition of a term is consistent throughout the specification unless the context clearly dictates otherwise.

Figure 2 schematically shows a two-component turning belt machine 2 according to the invention comprising two strip-shaped belt components. As shown in fig. 2, the two-component turning belt conveyor 2 comprises an inlet end 10, an outlet end 20, and two strip-shaped belt components 30 disposed between the inlet end 10 and the outlet end 20, one of which is disposed near the inlet end 10 and forms a conveying surface S1; and the other is disposed near the discharge end 20, which forms a conveying work surface S2.

In fig. 2, two arrows respectively show the feeding direction and the discharging direction, which are arranged at a predetermined angle, which is the turning angle of the turning belt conveyor. In fig. 2, the feed end 10 is generally aligned with a linear belt disposed in the feed direction, while the discharge end 20 is aligned with a linear belt disposed in the discharge direction. Therefore, the linear belt conveyor on the feeding side can send the materials into the feeding end 10 of the dual-component turning belt conveyor 2, and then the materials are sequentially conveyed on the conveying operation surfaces S1 and S2 of the dual-component turning belt conveyor 2 to pass through the turning area and are sent out to the linear belt conveyor on the discharging side from the discharging end 20. In addition, the dual-assembly turning belt conveyor 2 shown in fig. 2 further includes a motor 40, a frame 50, and a side dam 60.

Fig. 3 shows a specific structure of the strip-shaped belt assembly 30 in the two-assembly turning belt conveyor 2. As shown in fig. 3, the belt assembly 30 near the discharge end 20 includes a driving shaft 301, and two or more belt units 300 driven by the driving shaft 301. Each of the belt units 300 further includes a drive roller 3001 and a belt 3002. Each driving roller 3001 is fixed on the driving shaft 301 and driven by the driving shaft 301 to rotate. The strip 3002 is tensioned against the driving roller 3001 and is driven by the driving roller 3001 to rotate cyclically.

As shown in fig. 2, the strip belts 3002 in the respective strip belt units 300 are arranged in parallel with each other on the conveying work surface S1, taking the strip belt assembly 30 near the discharge end as an example. In other words, the conveying work surface S1 is collectively formed by the respective strip belts 3002 arranged in parallel. The spacing between the individual strap strips 3002 can be predetermined according to actual needs. For example, baggage conveyors at airports are often required to convey large sized items of baggage, and thus a large spacing may be set between the individual strip belts 3002 in a turning belt conveyor for airport baggage conveyance. For another example, given that parts of a small volume are generally transported in some production lines, the pitch of the strip belts 3002 in the turning belt conveyor for the production line needs to be set small to ensure safe transportation of the small parts.

In the example of fig. 3, the driving rollers 3001 of different strip belt units 300 are all sleeved on the same driving shaft 301 and driven by the same to rotate. The driving rollers do not need other driving connection such as belts, chains and the like, and the device has the advantages of simple structure, simple and convenient manufacture and installation, easy maintenance, accurate and synchronous rotating speed and easy control.

Meanwhile, in order to realize smooth passing of the conveyed material through the turning zone, the driving rollers 3001 in the respective strip belt units 300 have different radii from each other, and the radii of the respective driving rollers 3001 are set such that the respective strip belts 3002 move at a predetermined speed difference. Figure 4 schematically illustrates an example of a drive roller according to one embodiment of the present invention. As shown in fig. 4, the driving rollers 3001 with different radii are sequentially sleeved on the driving shaft 301 and driven by the driving shaft 301 to rotate. In the example of fig. 4, the radius of the driving rollers 3001 gradually increases in order from the inside (inner circumference of the turning zone) to the outside (outer circumference of the turning zone) of the two-component turning belt conveyor 2, that is, the smaller the radius of the driving rollers closer to the inside, the larger the radius of the driving rollers closer to the outside. The situation that the radius of each driving roller is gradually increased from the inner side to the outer side in the practical application scene can be more clearly seen from the embodiment of fig. 3.

In the example of fig. 4, since the driving rollers 3001 with different radii are all fixed on and driven by the same driving shaft 301, the angular velocities of the driving rollers 3001 are the same. This means that the linear velocity of each of the strip belts 3002 driven by the drive rollers 3001 of different radii produces a velocity difference, and the linear velocity of the strip belt nearer to the inner side is lower, and the linear velocity of the strip belt 3002 nearer to the outer side is higher. Therefore, when conveyed articles move on the conveying operation surface of the turning belt conveyor, the linear speed difference can enable the conveyed articles to rotate in the conveying process, and further the posture of the articles can be adjusted, so that the turning action can be better completed, or the requirements on the positions or angles of the articles in subsequent operation can be met.

Preferably, the ratio of the radii of the drive rollers 3001 of the different strip-shaped belt units is equal to the ratio of the lengths of the respective strip-shaped belts 3002 on the conveying surface of the strip-shaped belt assembly on which they are arranged. That is, it means that the time required for any point on the different strip belts to move on the conveying surface of the strip belt is equal. In this embodiment, the conveyed article can better maintain the attitude of the conveyed article as it enters from the inlet end as it is output from the outlet end.

Preferably, the two-component turning belt conveyor 2 further includes a tensioning member for tensioning each strip belt, such as the tensioning shaft 302 and the tensioning roller 3003 shown in fig. 3. As shown in fig. 3, the tension shaft 302 and the drive shaft 301 are arranged in parallel. A plurality of tensioning rollers 3003 are mounted on the tensioning shaft 302, each tensioning roller 3003 being configured to tension a corresponding strap. The tensioning shaft 302 may be mounted on a position adjustment device (not shown) that can change its position. Each of the strip belts 3002 can be tensioned by changing the position of the tension shaft 302. If the tensioning shaft 302 is removed from the installation position, so that the tensioned belt strips are released, the belt strips 3002 or the tensioning rollers 3003 can be replaced relatively easily.

Due to the different linear speeds of the endless movement of the different strip belts, it is required that the respective tensioning drums 3003 rotate at different angular speeds, i.e. that the respective tensioning drums 3003 rotate independently of each other. Preferably, the utility model provides a pass through the bearing with different tensioning roller 3003 and install on a tensioning axle 302 to the tensioning roller 3003 of different bar belt units can rotate by mutual independence, and simple structure, simple to operate.

More preferably, the tension roller 3003 may be independently detachable. Thus, instead of adjusting the tension of all the strap belts tensioned thereon by changing the position of the tensioning shaft 302, the tension of a single strap belt can be adjusted by replacing tensioning rollers of different radii. In one embodiment, the tension roller 3003 can be a single piece that is mounted by being sleeved onto bearings at predetermined locations on the tension shaft. Conversely, when disassembled, it is also necessary to withdraw it from the tensioning shaft 302 in turn. It is particularly preferred that the tension roller 3003 comprises two roller members which can be fastened to each other by means of bearings at predetermined positions on the tension shaft 302. Thus, even if the tension roller to be replaced is located in the middle of the tension shaft 302, the two roller parts which are buckled together only need to be separated, and the roller parts can be taken down for replacement. It is particularly preferred that two identical roller elements can be used to reduce manufacturing costs and difficulties. In the above embodiment, in order to make the tension roller be better fixed on the bearing, the tension roller 3003 may be fastened on the bearing using a fastener.

As can be seen in fig. 2, the conveying surface S1 formed by the belt strip assembly 30 adjacent the infeed end 10 is at least no lower than the conveying surface S2 formed by the belt strip assembly 30 adjacent the outfeed end 20. Alternatively, the conveying surface S1 formed by the belt strip assembly 30 near the feed end 10 may be disposed higher than the conveying surface S2 formed by the belt strip assembly 30 near the discharge end 20. Therefore, conveyed articles can smoothly pass through the joint of the two strip-shaped belt assemblies 30 in the double-assembly turning belt conveyor 2, so that the conveyed articles can be prevented from being blocked or jammed.

The height difference between the two conveying surfaces S1 and S2 can be predetermined according to the size, characteristics, and passing characteristics of the specific conveyed article. For example, in an airport baggage system, since the baggage to be transported is generally large in size, the difference in height between two transportation planes may be 5 cm or more; in the postal parcel conveying system, the height difference is small; in the component conveying system on the production line, the height difference is smaller because the size of the components is smaller. In the embodiment shown in fig. 3, if the predetermined difference in height between the two conveying surfaces S1 and S2 allows this, the two belt strip assemblies 30 can be stacked on top of one another in the junction area, i.e. the belt strip assembly 30 near the infeed end 10 is stacked above the belt strip assembly 30 near the outfeed end 20. In this way, the conveyed article can move or fall directly from the conveying surface S1 of the strip-shaped belt assembly 30 near the feed end 10 onto the conveying surface S2 of the strip-shaped belt assembly 30 near the discharge end 20, thereby eliminating the effect of the joint at the butt joint between the two strip-shaped belt assemblies 30.

Preferably, in the dual-component turning belt conveyor 2 shown in fig. 2, the two strip-shaped belt components 30 each include the same number of strip-shaped belt units, and the strip-shaped belts of the corresponding strip-shaped belt units move at the same speed on the conveying operation surface of each component. By adopting the mode, the strip belts of the strip belt assemblies correspond to each other on the conveying operation surfaces of the strip belt assemblies without speed difference, and conveyed articles can smoothly pass through the butt joint of the two strip belt assemblies. Alternatively, in a two-component or even multi-component turning belt conveyor, the strip belt components comprised by the respective strip belt units may also be independent of one another, i.e. the number of strip belt units comprised by each and the speed of movement of the strip belt are also independent of one another.

As shown in fig. 2, each of the belt assemblies 30 of the two-assembly turning belt conveyor 2 may be provided with a motor 40, and the motor 40 is connected to the driving shaft 301 of the belt assembly through a connecting means such as a gear box and may drive the driving shaft 301 to rotate. A plurality of belt assemblies may share a single motor 40. For example, in the two-component turning belt conveyor 2 shown in the figure, a motor 40 may be disposed below and outside one of the belt assemblies, and one end on the inside may be connected to the other belt assembly at one end on the inside via a cardan shaft, so that the drive shaft of the other belt assembly may be driven by the drive shaft of the belt assembly on which the motor 40 is disposed.

In the embodiment, if each strip-shaped belt component is provided with one motor, the required motor can select the motor with relatively smaller maximum torque, and a plurality of motors need to be synchronized; if a plurality of bar belt assembly use a motor jointly, then need the bigger motor of maximum torque to satisfy a plurality of bar belt assemblies of simultaneous drive, pivoted start-stop and rotational speed can have better synchronization simultaneously.

The frame 50 shown in fig. 2 is configured to accommodate placement of a belt assembly in the form of a belt strip, and may also accommodate placement of other components of the turning belt conveyor such as the motor 40, side guards 60, etc. The frame 50 includes a height adjustment device (not shown) that adjusts the height of the conveying surface of the belt strip assembly to match the different height differential requirements for conveying different types and sizes of conveyed articles. The height adjusting device can adjust the height difference between the conveying operation surfaces of the strip-shaped belt assemblies of the turning belt conveyor and also can adjust the height difference between the strip-shaped belt assemblies and the conveying operation surfaces of the linear conveyors in butt joint with the strip-shaped belt assemblies.

Preferably, as shown in fig. 2, side dams 60, which are disposed between the feed end 10 and the discharge end 20, are also disposed inside and outside the belt assembly of the turning belt conveyor, perpendicular to the conveying plane of the belt assembly. More preferably, for the two-component turning belt or the multi-component turning belt of the two-component turning belt 2 as shown in fig. 2, the side guards 60 are rounded at the turning portions of both sides thereof. The material used for the side dams, the dam heights, etc. can be predetermined based on the size, weight, etc. of the articles to be transported in the actual environment.

In the embodiment of fig. 2 to 4, the two-component turning belt conveyor 2 comprises two strip-shaped belt components 30. In practical application, the turning belt conveyor can be a single-component turning belt conveyor only comprising one strip-shaped belt component, can also be a double-component turning belt conveyor comprising two strip-shaped belt components, and can also be a multi-component turning belt conveyor comprising more than two strip-shaped belt components. The choice of single, dual or multiple components depends on the desired angle of turn and the particular application. The specific application environment comprises conveying speed, material weight, site limitation, integral layout of a conveying line and the like.

Figure 5 schematically illustrates a turning belt machine 3 comprising one strip belt assembly 30 according to the present invention. In comparison with fig. 2, the turning belt conveyor 3 shown in fig. 5 differs in that it comprises a belt assembly 30 of the strip type.

As shown in fig. 5, the turning belt conveyor 3 includes an inlet end 10, an outlet end 20, and a belt strip assembly 30 interposed between the inlet end 10 and the outlet end 20, the belt strip assembly 30 being formed with a conveying work surface S. In fig. 5, two arrows respectively show the feeding direction and the discharging direction, which are arranged at a predetermined angle, which is the turning angle of the turning belt conveyor. In fig. 5 the feed end 10 is generally aligned with the linear belt disposed in the feed direction, while the discharge end 20 is aligned with the linear belt disposed in the discharge direction. Therefore, the linear belt conveyor on the feeding side can convey the materials into the feeding end 10 of the turning belt conveyor 3, then the materials are conveyed on the conveying operation surface S of the turning belt conveyor 3 to pass through the turning area, and the materials are conveyed out of the linear belt conveyor on the discharging side from the discharging end 20.

Fig. 2 and 5 show a two-component turning belt consisting of two strip-shaped belt components and a turning belt consisting of one strip-shaped belt component, respectively. In the case of a small turning angle, for example less than 45 degrees, it is conceivable to use a single-component turning belt conveyor. For the turn belt feeder of single component, its turn angle degree of the turn belt feeder that the dual module is constituteed can not be fixed, as long as the demand that the installation angle just can satisfy different angles is adjusted, its application scope is wider, the standardized production of being convenient for moreover. Moreover, the number of times that the article that is transmitted changes the direction of motion in handing-over department of different conveying unit (like linear conveyor, the utility model discloses a turn belt feeder) is once by twice reduction of single component, and the transmission of article is more stable like this, and the probability of going wrong is littleer. In addition, the drive arrangement is easier for the conveyor supplier, and the design solution can be more easily implemented in the product technology design stage. If the turning angle is large, for example, 180 degrees is reached, a combination of two dual-component turning belt conveyors with 90 degrees turning angle or a three-component turning belt conveyor may be considered.

The actual turning angle is determined by the specific application environment. For example, high speed, heavy weight conveyed articles are not amenable to large angle turns; and site restriction and conveyor line layout etc. also can direct influence the conveyor line trend thereby restrict the turn angle. And the turning angle determines the turning belt conveyor adopting single components, double components and even multiple components to a great extent.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above list of details is only for the practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims

1. Turning belt having a feed end (10) and a discharge end (20), wherein the feed direction at the feed end (10) and the discharge direction at the discharge end (20) are at a predetermined angle, characterized in that the turning belt comprises:

a strip belt assembly (30) disposed between said feed end (10) and said discharge end (20) and formed with a conveying surface (S), said strip belt assembly (30) comprising:

a drive shaft (301);

at least two strip-shaped belt units (300), each strip-shaped belt unit (300) comprising:

the driving roller (3001) is sleeved on the driving shaft (301) and driven by the driving shaft (301) to rotate;

a strip-shaped belt (3002) wound on the driving roller (3001) and driven by the driving roller (3001) to rotate circularly;

wherein the strip belts (3002) included in different strip belt units (300) are arranged parallel to each other on the conveying work surface (S); the drive rollers (3001) included in different strip belt units (300) have different radii, and the radii of the drive rollers (3001) are set so that the strip belts (3002) move at a predetermined speed difference.

2. A turning belt conveyor according to claim 1, characterized in that the ratio of the radii of the drive rollers (3001) of the at least two strip-shaped belt units (300) and the ratio of the lengths of the respective strip-shaped belts (3002) on the conveying work surface (S) are equal.

3. A turning belt conveyor according to claim 1, characterized in that said strip-shaped belt assembly (30) further comprises a tensioning shaft (302) arranged parallel to said driving shaft (301); each strip belt unit (300) still includes a tensioning roller (3003), strip belt (3002) are around establishing on the tensioning roller, tensioning roller (3003) are installed through the bearing on tensioning shaft (302), and it can be adjusted around locating on it the tensioning degree of strip belt (3002).

4. A turning belt conveyor according to claim 3, characterized in that the tensioning roller (3003) is independently detachable.

5. A belt conveyor according to claim 4, characterized in that said tensioning roller (3003) comprises two roller parts which can be mutually snap-fitted on bearings of predetermined positions on said tensioning shaft (302).

6. The turning belt conveyor of claim 1, comprising: the two strip-shaped belt assemblies (30) are adjacently arranged, one strip-shaped belt assembly is arranged close to the feeding end (10), the other strip-shaped belt assembly is arranged close to the discharging end (20), and the conveying operation surface of the strip-shaped belt assembly (30) close to the feeding end (10) is higher than the conveying operation surface of the strip-shaped belt assembly (30) close to the discharging end (20).

7. A belt conveyor according to claim 6, characterized in that the strip-shaped belt assemblies (30) close to the feed end (10) and the strip-shaped belt assemblies (30) close to the discharge end (20) comprise the same number of strip-shaped belt units, and the strip belts of the corresponding strip-shaped belt units move at the same speed on the respective conveying surfaces.

8. A turning belt conveyor according to claim 6, characterized in that it further comprises a motor (40), said motor (40) driving the rotation of the drive shafts (301) of the two strip-shaped belt assemblies (30) simultaneously.

9. A turning belt conveyor according to any one of claims 1 to 8, characterized in that it comprises a frame (50), said frame (50) being configured to house said strip-shaped belt assembly (30), said frame (50) comprising height adjustment means for adjusting the height of said conveying work surface (S) of said strip-shaped belt assembly (30).

10. A turning belt conveyor according to claim 1, characterized in that it comprises two side dams (60) interposed between the feed end (10) and the discharge end (20), respectively on both sides of the strip-shaped belt assembly (30) and arranged perpendicularly to the conveying plane (S).