Curve Conveyor

Abstract

The present invention proposes a curved belt conveyor, which includes a strip belt assembly placed between a feed end and a discharge end. The strip belt assembly includes: a drive shaft, and at least two strip belt units driven by the drive shaft, each of the strip belt units includes: a drive roller, which is sleeved and fixed on the drive shaft; a strip belt, which is wound around the drive roller and driven to rotate by the drive roller; wherein the strip belts are arranged parallel to each other and jointly form a conveying working surface; the drive rollers included in different strip belt units have different radii and the radii of each drive roller are arranged so that different strip belts move according to a predetermined speed difference. The curved belt conveyor of the present invention has a simple structure, convenient adjustment, and low maintenance cost.

Description

Technical Field

[0001] The invention relates to a belt conveyor in the field of logistics, in particular to a curved belt conveyor. Background Art

[0002] Belt conveyor is a common way of conveying goods in the field of logistics. Most belt conveyors are in a straight line. The linear belt conveyor has a simple structure and high efficiency. In practical applications, due to limitations of site structure, space, etc., or the need for path design, in addition to straight-line conveying, there will also be areas that need to turn in the belt conveyor path. Therefore, the turning belt conveyor has become an indispensable equipment in the belt conveyor system.

[0003] Figure 1 FIG. 1 shows a conventional belt curve conveyor, which uses a fan-shaped belt to achieve conveying in the curve area. Figure 1 As shown, the conventional curved belt conveyor C1 comprises a feed end 10, a discharge end 20, and a fan-shaped belt unit C300 disposed between the feed end 10 and the discharge end 20. The difference between the fan-shaped belt unit C300 and the linear belt unit is that the circularly rotating belt forms a substantially fan-shaped conveying working surface, so that the material on the fan-shaped belt unit C300 can move along an arc through the turning area.

[0004] Due to its special shape, the fan-shaped belt is difficult to run continuously for a long time in a tensioned state and is prone to loosening. In addition, this traditional belt conveyor is usually driven by a chain, and the running trajectory of the chain is controlled by a groove. This traditional turning belt conveyor does not run smoothly, the belt is easy to loosen, it is difficult to adjust, it is noisy, it is easy to wear, and it has high maintenance requirements, resulting in high operating and maintenance costs. Moreover, with the increase in the number of years of operation, the failure rate will also increase significantly. CN108639722A discloses a turning belt conveyor that uses a plurality of strip belt conveyors in parallel to replace the fan-shaped belt, and different strip belt conveyors have different strip belt movement speeds driven by separate drive shafts, thereby achieving turning conveying. Summary of the invention

[0005] One object of the present invention is to provide a belt turning conveyor which can effectively avoid the problem of belt loosening in traditional fan-shaped belt conveyors. Another object of the present invention is to provide a belt turning conveyor which has a simple structure, is easy to adjust, and has low maintenance cost.

[0006] To achieve the above-mentioned purpose, the present invention proposes a turning belt conveyor, which has a feed end and a discharge end, wherein the feed direction at the feed end and the discharge direction at the discharge end form a predetermined angle, and the turning belt conveyor comprises: a strip belt assembly, which is placed between the feed end and the discharge end and forms a conveying working surface, and the strip belt assembly comprises: a driving shaft; at least two strip belt units, each of the strip belt units comprises: a driving roller, which is sleeved on the driving shaft and rotates under the drive of the driving shaft; a strip belt, which is wound around the driving roller and circulates under the drive of the driving roller; wherein the strip belts included in different strip belt units are arranged parallel to each other on the conveying working surface; the radii of the driving rollers included in different strip belt units are different, and the radius of each driving roller is set so that each strip belt moves according to a predetermined speed difference.

[0007] In such a manner, the strip belts of at least two strip belt units are arranged in parallel to form a working surface of the belt conveyor turning area, so that the objects conveyed on the working surface can complete the turning action. Since each of the at least two strip belt units is equivalent to a straight belt conveyor, it has the advantages of a straight belt conveyor. Compared with a fan-shaped belt conveyor, the transmission belt of a straight belt conveyor is not easy to loosen, and the straight belt conveyor also has the advantages of simple structure, convenient adjustment, and low maintenance cost.

[0008] Meanwhile, in the above-mentioned manner, the driving rollers included in different strip belt units have different radii and are arranged so that different strip belts move at a preset speed difference. When the transported articles move on the conveying operation surface, they will rotate due to the difference in linear speeds of different strip belts, so that the articles can smoothly pass through the turning area.

[0009] In addition, in some specific working environments, there are also requirements for the posture of the conveyed items, such as when labels need to be attached to the fixed surface of standard products or other processing is required. The rotation of the items caused by the speed difference of the above-mentioned different strip belts can just adjust the posture of the conveyed items, making subsequent processing easier, which is particularly meaningful for conveyor lines that need to handle large quantities of items.

[0010] In another exemplary embodiment, preferably, the ratio of the driving roller radii of the at least two strip belt units and the ratio of the lengths of the corresponding strip belts on the conveying operation surface are equal. This arrangement can make the movement time of any point on different strip belts on the transport operation surface equal. In this way, the transported items can be rotated to an appropriate angle while traveling, avoiding insufficient or excessive rotation angles of the items, which affects the turning action of the items.

[0011] In another schematic embodiment of the turning belt conveyor, the strip belt assembly also includes a tensioning shaft, which is arranged parallel to the driving shaft; each of the strip belt units also includes a tensioning roller, and the strip belt is wound on the tensioning roller. The tensioning roller is installed on the tensioning shaft through a bearing, and can adjust the tension of the strip belt mounted thereon.

[0012] In this way, the strip belt and the driving roller can be closely fitted to provide sufficient friction, so that the driving roller can drive the strip belt to circulate. At the same time, the tensioning roller is installed on the tensioning shaft through the bearing, so that different tensioning rollers can rotate independently at different angular speeds with the strip belt mounted thereon.

[0013] In another exemplary embodiment of the curved belt conveyor, the tension roller is independently detachable. In such a manner, the tension roller can be independently detached, which is convenient for replacing a faulty tension roller, or for replacing tension rollers of different radii to adjust the tension of the strip belt and ensure that the strip belt can be effectively driven to circulate.

[0014] In another exemplary embodiment of the curved belt conveyor, the tensioning roller includes two roller components, and the roller components can be interlocked with each other on bearings at predetermined positions on the tensioning shaft.

[0015] In such a manner, the tensioning roller can be easily disassembled or installed. The two roller parts can be clasped on the tensioning shaft and fastened to form a complete roller. Preferably, fasteners such as bolts can be used to further fasten the two roller parts. More preferably, two identical roller parts can be used to reduce manufacturing costs and difficulty.

[0016] In another schematic embodiment of the turning belt conveyor, the turning belt conveyor includes two adjacently arranged strip belt assemblies, one of which is arranged close to the feed end, and the other is arranged close to the discharge end, and the conveying working surface of the strip belt assembly close to the feed end is higher than the conveying working surface of the strip belt assembly close to the discharge end.

[0017] There is a seam at the junction of the feed end strip belt assembly and the discharge end strip belt assembly. In this way, the conveyed items can be prevented from being blocked or stuck at the seam. The height difference can be determined in advance based on the size, characteristics (such as soft bags, hard cartons), and passability (such as whether there are accessories such as straps and tags that are easily stuck) of the specific conveyed items.

[0018] In another schematic embodiment of the turning belt conveyor, the strip belt assembly near the feed end and the strip belt assembly near the discharge end include the same number of strip belt units, and the strip belts of the corresponding strip belt units move at the same speed on their respective conveying working surfaces.

[0019] In the above-mentioned manner, there is no speed difference between the corresponding strip belts of the two strip belt assemblies on the conveying working surface, so that the conveyed items can smoothly pass through the joint of the two strip belt assemblies and move from the conveying working surface of the strip belt assembly at the feed end to the conveying working surface of the strip belt assembly at the discharge end.

[0020] In another exemplary embodiment of the curved belt conveyor, the curved belt conveyor further comprises a motor, and the motor simultaneously drives the driving shafts of the two strip belt assemblies to rotate.

[0021] In the above manner, using one motor to drive two strip belt assemblies at the same time can save costs, and at the same time, the start and stop of the two assemblies can be synchronized, and the movement linear speeds of the corresponding strip belts on the two strip belt assemblies can also be better synchronized.

[0022] In another schematic embodiment of the turning belt conveyor, the turning belt conveyor includes a frame, the frame is configured to place the strip belt assembly, and the frame includes a height adjustment device for adjusting the height of the conveying working surface of the strip belt assembly.

[0023] In the above manner, when the type of items conveyed by the turning belt conveyor changes, the height of the conveying working surface of the strip belt assembly and / or the constant speed strip belt assembly can be conveniently adjusted by the height adjustment device on the frame to adapt to different types of conveyed items.

[0024] In another schematic embodiment of the turning belt conveyor, the turning belt conveyor includes two side baffles disposed between the feed end and the discharge end, which are respectively located on both sides of the strip belt assembly and are arranged perpendicular to the conveying working surface.

[0025] The side baffles in the above manner can play a limiting role, helping larger conveyed items to better adjust their posture during the turning process and preventing the conveyed items from accidentally falling. For a curved belt conveyor including two or more strip belt assemblies, the side baffles are in an arc shape at the turning point of the curved belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings are only used to illustrate and explain 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.

[0027] Figure 1 A top view of a conventional belt curve conveyor including a fan-shaped belt is schematically shown;

[0028] Figure 2 A double-component curved belt conveyor including two strip belt components according to the present invention is schematically illustrated;

[0029] Figure 3 Schematically illustrates a bottom perspective view of a two-component strip belt assembly according to the present invention;

[0030] Figure 4 The driving shaft and driving roller of the curved belt conveyor according to the present invention are schematically illustrated.

[0031] Figure 5 A top view of a curved belt conveyor including a strip belt assembly according to the present invention is schematically shown.

[0032] Reference numerals

[0033] C1: Traditional curved belt conveyor

[0034] C300: Fan belt unit

[0035] 2: Double component curved belt conveyor

[0036] 3: Curved belt conveyor

[0037] 10: Feed end

[0038] 20: Discharging end

[0039] 30: Strip belt assembly

[0040] 30-1: Strip belt assembly near the feed end

[0041] 30-2: Strip belt assembly near the discharge end

[0042] 300: Strip belt unit

[0043] S: conveying working surface

[0044] S1: Conveying surface of the strip belt assembly near the feed end

[0045] S2: Conveying surface of the strip belt assembly near the discharge end

[0046] 301: Drive shaft

[0047] 302: tensioning shaft

[0048] 3001: Driving roller

[0049] 3002: Strip belt

[0050] 3003: Tension roller

[0051] 40: Motor

[0052] 50: Rack

[0053] 60: Side guard DETAILED DESCRIPTION

[0054] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and is not a limitation of the scope of protection, applicability or examples set forth in the claims. The function and arrangement of the elements discussed can be changed without departing from the scope of protection of the present disclosure. Various examples can omit, replace or add various processes or components as needed. For example, the described method can be performed in an order different from the described order, and various steps can be added, omitted or combined. In addition, the features described relative to some examples can also be combined in other examples.

[0055] As used herein, the term "including" and its variations represent open terms, meaning "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", etc. may refer to different or the same objects. Other definitions may be included below, whether explicit or implicit. Unless the context clearly indicates otherwise, the definition of a term is consistent throughout the specification.

[0056] Figure 2 The double-component belt curve 2 according to the present invention comprising two strip belt components is schematically shown. Figure 2As shown, the double-component turning belt conveyor 2 includes a feed end 10, a discharge end 20, and two strip belt components 30 placed between the feed end 10 and the discharge end 20, one of which is arranged close to the feed end 10, called the strip belt component 30-1 close to the feed end, which forms a conveying working surface S1; the other is arranged close to the discharge end 20, called the strip belt component 30-2 close to the discharge end, which forms a conveying working surface S2.

[0057] Figure 2 The two arrows in the figure respectively indicate the feeding direction and the discharging direction, which are arranged at a predetermined angle, and this angle is the turning angle of the turning belt conveyor. Figure 2 The feed end 10 is usually connected to a linear belt conveyor arranged along the feed direction, and the discharge end 20 is connected to a linear belt conveyor arranged along the discharge direction. Thus, the linear belt conveyor on the feed side can deliver materials to the feed end 10 of the dual-component curved belt conveyor 2, and then the materials are successively transported through the turning area on the conveying working surfaces S1 and S2 of the dual-component curved belt conveyor 2, and are sent out from the discharge end 20 to the linear belt conveyor on the discharge side. In addition, Figure 2 The illustrated dual-component curved belt conveyor 2 further includes a motor 40 , a frame 50 , and side guards 60 .

[0058] Figure 3 The specific structure of the strip belt assembly 30 in the double-assembly curved belt conveyor 2 is shown. Figure 3 As shown, taking the strip belt assembly 30-2 near the discharge end as an example, it includes a driving shaft 301, and two or more strip belt units 300 driven by the driving shaft 301. Each strip belt unit 300 further includes a driving roller 3001 and a strip belt 3002. Each driving roller 3001 is sleeved and fixed on the driving shaft 301 and rotates under the drive of the driving shaft 301. The strip belt 3002 is stretched on the driving roller 3001 and rotates cyclically under the drive of the driving roller 3001.

[0059] like Figure 2 As shown, taking the strip belt assembly 30-1 near the discharge end as an example, the strip belts 3002 in each strip belt unit 300 are arranged parallel to each other on the conveying operation surface S1. In other words, the conveying operation surface S1 is formed by the strip belts 3002 arranged in parallel. The spacing between each strip belt 3002 can be preset according to actual needs. For example, the baggage conveyor at the airport usually needs to convey larger luggage items, so a larger spacing can be set between each strip belt 3002 in the turning belt conveyor used for airport baggage conveying. For another example, assuming that smaller parts are usually conveyed on certain production lines, the spacing between each strip belt 3002 in the turning belt conveyor used for the production line needs to be set smaller to ensure the safe conveying of smaller parts.

[0060] exist Figure 3 In the example, the driving rollers 3001 of the different strip belt units 300 are all sleeved on the same driving shaft 301 and driven to rotate. No other driving connection such as belts, chains, etc. is required between the driving rollers. The structure is simple, the manufacturing and installation are simple, and the maintenance is easy. Moreover, the rotation speed can be precisely synchronized and easy to control.

[0061] At the same time, in order to ensure that the conveyed materials pass through the turning area smoothly, the driving rollers 3001 in each strip belt unit 300 have different radii from each other, and the radius of each driving roller 3001 is set so that each of the strip belts 3002 moves according to a predetermined speed difference. Figure 4 An example of a driving roller according to an embodiment of the present invention is schematically shown. Figure 4 As shown, driving rollers 3001 of different radii are sequentially sleeved on the driving shaft 301 and rotate under the drive of the driving shaft 301. Figure 4 In the example, the radius of the driving roller 3001 gradually increases from the inside (inner periphery of the turning area) to the outside (outer periphery of the turning area) of the dual-component turning belt conveyor 2, that is, the radius of the driving roller closer to the inside is smaller, and the radius of the driving roller closer to the outside is larger. Figure 3 The embodiment can more clearly show that in actual application scenarios, the radius of each driving roller gradually increases from the inside to the outside.

[0062] exist Figure 4 In the example, since the driving rollers 3001 of different radii are all fixed on the same driving shaft 301 and driven by it, the angular velocity of each driving roller 3001 is the same. This means that the linear velocity of each strip belt 3002 driven by the driving rollers 3001 of different radii will produce a speed difference, and the linear velocity of the strip belt closer to the inside is lower, and the linear velocity of the strip belt 3002 closer to the outside is higher. In this way, when the conveyed objects move on the conveying operation surface of the curved belt conveyor, this linear velocity difference can make the conveyed objects rotate during the conveying process, and then adjust the posture of the objects to better complete the turning action, or meet the position or angle requirements of the objects in subsequent operations.

[0063] Preferably, the ratio of the radius of the driving rollers 3001 of different strip belt units and the ratio of the length of the corresponding strip belt 3002 on the conveying working surface of the strip belt assembly are equal. This means that any point on different strip belts takes the same amount of time to move on the conveying working surface of the strip belt. In this embodiment, when the conveyed objects are output from the discharge end, the conveyed objects can better maintain the posture when they enter from the feed end.

[0064] Preferably, the dual-component belt curve conveyor 2 further comprises a tensioning component for tensioning each strip belt, for example Figure 3 The tensioning shaft 302 and the tensioning roller 3003 are shown. Figure 3 As shown, the tensioning shaft 302 and the driving shaft 301 are arranged in parallel. A plurality of tensioning rollers 3003 are sleeved on the tensioning shaft 302, and each tensioning roller 3003 is used to tension a corresponding strip belt. The tensioning shaft 302 can be installed on a position adjustment device (not shown) that can change its position. Each strip belt 3002 can be tensioned by changing the position of the tensioning shaft 302. If the tensioning shaft 302 is removed from the installation position, so that each tensioned strip belt is loosened, the strip belt 3002 or the tensioning roller 3003 can be replaced more easily.

[0065] Since the linear speeds of the circulating motions of different strip belts are different, the corresponding tension rollers 3003 need to rotate at different angular speeds, that is, the tension rollers 3003 rotate independently of each other. Preferably, the present invention proposes to install different tension rollers 3003 on a tension shaft 302 through bearings, so that the tension rollers 3003 of different strip belt units can rotate independently of each other, and the structure is simple and easy to install.

[0066] More preferably, the tensioning roller 3003 can be independently detachable. In this way, in addition to adjusting the tension of all the strip belts tensioned thereon by changing the position of the tensioning shaft 302, the tension of a single strip belt can also be adjusted by replacing tensioning rollers of different radii. In one embodiment, the tensioning roller 3003 can be an integral part, which needs to be inserted into the bearings at the predetermined positions on the tensioning shaft in sequence during installation. Conversely, when disassembling, it also needs to be pulled out from the tensioning shaft 302 in sequence. Particularly preferably, the tensioning roller 3003 includes two roller components, which can be fastened to each other on the bearings at the predetermined positions on the tensioning shaft 302 and fixed. In this way, even if the tensioning roller to be replaced is in the middle position of the tensioning shaft 302, it only needs to separate the two fastened roller components to remove it for replacement. Particularly preferably, two identical roller components can be used to reduce manufacturing costs and difficulty. In the above embodiments, in order to better fix the tensioning roller on the bearing, fasteners may be used to fasten the tensioning roller 3003 on the bearing.

[0067] Depend on Figure 2It can be seen that the conveying working surface S1 formed by the strip belt assembly 30-1 near the feed end is at least not lower than the conveying working surface S2 formed by the strip belt assembly 30-2 near the discharge end. Optionally, the conveying working surface S1 formed by the strip belt assembly 30-1 near the feed end can be set to be higher than the conveying working surface S2 formed by the strip belt assembly 30-2 near the discharge end. In this way, the conveyed articles can smoothly pass through the intersection of the two strip belt assemblies 30-1 and 30-2 in the dual-component turning belt conveyor 2, thereby avoiding obstruction or jamming of the conveyed articles.

[0068] The height difference between the two conveying surfaces S1 and S2 can be predetermined according to the size, characteristics, and passability of the specific items being conveyed. For example, in the baggage system of an airport, since the items being conveyed are usually large-sized luggage, the height difference between the two conveying surfaces can be more than 5 cm; in the postal parcel conveying system, the height difference will be relatively small; in the parts conveying system on the production line, the height difference will be even smaller due to the small size of the parts. Figure 3 In the illustrated embodiment, if the height difference between the two pre-set conveying working surfaces S1 and S2 allows, the two strip belt assemblies 30-1 and 30-2 can be overlapped with each other in the intersection area, that is, the strip belt assembly 30-1 near the feed end is overlapped above the strip belt assembly 30-2 near the discharge end. In this way, the conveyed articles can move or fall directly from the conveying working surface S1 of the strip belt assembly 30-1 near the feed end to the conveying working surface S2 of the strip belt assembly 30-2 near the discharge end, thereby eliminating the influence of the seam at the joint between the two strip belt assemblies.

[0069] Preferably, Figure 2 In the double-component turning belt conveyor 2 shown, the two strip belt components 30-1 and 30-2 each include the same number of strip belt units, and the strip belts of the corresponding strip belt units move at the same speed on the conveying working surface of each component. In this way, the strip belts of each strip belt component correspond to each other on their respective conveying working surfaces without speed difference, and the conveyed items can smoothly pass through the joint of the two strip belt components. Optionally, in a double-component or even multi-component turning belt conveyor, the strip belt components included in each strip belt unit can also be independent of each other, that is, the number of strip belt units included and the speed of movement of the strip belts are also independent of each other.

[0070] like Figure 2As shown, each strip belt assembly 30 of the dual-component turning belt conveyor 2 can be equipped with a motor 40, and the motor 40 is connected to the driving shaft 301 of the strip belt assembly through a connecting device such as a gear box and can drive the driving shaft 301 to rotate. Multiple strip belt assemblies can also share one motor 40. For example, the dual-component turning belt conveyor 2 in the figure can be equipped with a motor 40 on the lower outer side of one of the strip belt assemblies, and the inner end is connected to the driving shaft of the other strip belt assembly through a universal shaft at the inner end, so that the driving shaft of the other strip belt assembly can be driven by the driving shaft of the strip belt assembly equipped with the motor 40.

[0071] In the above embodiment, if each strip belt assembly is equipped with a motor, the required motor can be selected as a motor with a relatively small maximum torque, and multiple motors need to be synchronized; if multiple strip belt assemblies share one motor, a motor with a larger maximum torque is required to drive multiple strip belt assemblies at the same time, and the start and stop of the rotation and the speed can be better synchronized.

[0072] Figure 2 The frame 50 shown is configured to be suitable for placing the strip belt assembly, and can also place other components of the curve conveyor such as the motor 40 and the side baffle 60. The frame 50 includes a height adjustment device (not shown), which can adjust the height of the conveying working surface of the strip belt assembly to match the requirements of different height differences for conveying conveyed objects of different types and sizes. The height adjustment device can adjust the height difference between the conveying working surfaces of each strip belt assembly of the curve conveyor, and can also adjust the height difference between the conveying working surfaces of the strip belt assembly and the linear conveyor connected thereto.

[0073] Preferably, if Figure 2 As shown, the side baffles 60 disposed between the feed end 10 and the discharge end 20 may also be disposed on the inner and outer sides of the strip belt assembly of the curved belt conveyor and perpendicular to the conveying working surface of the strip belt assembly. Figure 2 The double-component turning belt conveyor 2 or the multi-component turning belt conveyor shown has a side baffle 60 in the shape of an arc at the turning part on both sides thereof. The material used for the side baffle and the height of the baffle can be predetermined according to the size and weight of the articles to be conveyed in the actual environment.

[0074] Figures 2 to 4In the embodiment of the present invention, the double-component turning belt conveyor 2 includes two strip belt components 30. In practical applications, the turning belt conveyor can be a single-component turning belt conveyor including only one strip belt component, a double-component turning belt conveyor including two strip belt components, or a multi-component turning belt conveyor including more than two strip belt components. The choice of using a single component, a double component or a multi-component depends on the required turning angle and the specific application environment. The specific application environment includes conveying speed, material weight, site restrictions and the overall layout of the conveyor line.

[0075] Figure 5 A belt curve conveyor 3 including a strip belt assembly 30 according to the present invention is schematically shown. Figure 2 compared to, Figure 5 The shown curved belt conveyor 3 differs in that it includes a strip belt assembly 30 .

[0076] like Figure 5 As shown, the curved belt conveyor 3 includes a feed end 10, a discharge end 20, and a strip belt assembly 30 disposed between the feed end 10 and the discharge end 20, and the strip belt assembly 30 forms a conveying working surface S. Figure 5 The two arrows in the figure respectively indicate the feeding direction and the discharging direction, which are arranged at a predetermined angle, and this angle is the turning angle of the turning belt conveyor. Figure 5 The feeding end 10 is usually connected to a linear belt conveyor arranged along the feeding direction, and the discharging end 20 is connected to a linear belt conveyor arranged along the discharging direction. Thus, the linear belt conveyor on the feeding side can deliver the material to the feeding end 10 of the curved belt conveyor 3, and then the material is transported through the curved area on the conveying working surface S of the curved belt conveyor 3, and is sent out from the discharging end 20 to the linear belt conveyor on the discharging side.

[0077] Figure 2 and Figure 5A double-component turning belt conveyor composed of two strip belt components and a turning belt conveyor composed of one strip belt component are shown respectively. When the turning angle is small, for example, less than 45 degrees, a single-component turning belt conveyor can be considered. Compared with a single-component turning belt conveyor, the turning angle of the turning belt conveyor composed of a double component can be not fixed. As long as the installation angle is adjusted, the requirements of different angles can be met. It has a wider range of applications and is convenient for standardized production. Moreover, the number of times the transported items change the direction of movement at the intersection of different conveying units (such as linear conveyors and the turning belt conveyor of the present invention) is reduced from two times of a single component to one time, so that the transmission of items is more stable and the probability of problems is smaller. In addition, for conveyor suppliers, the drive arrangement is easier, and the design scheme will be easier to implement in the product technical design stage. If the turning angle is large, for example, reaching 180 degrees, it is possible to consider using a combination of two double-component turning belt conveyors with a turning angle of 90 degrees, or a three-component turning belt conveyor.

[0078] Regarding the specific application environment, it is actually determined by the turning angle. For example, high-speed and heavy objects being transported should not be turned at a large angle; and site restrictions and conveyor line layout will directly affect the direction of the conveyor line and thus limit the turning angle. The turning angle largely determines the use of single-component, double-component or even multi-component turning belt conveyors.

[0079] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0080] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present invention, such as combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A curved belt conveyor 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) form a predetermined angle, characterized in that: The belt turning conveyor comprises: A strip belt assembly (30) is disposed between the feed end (10) and the discharge end (20) and forms a conveying operation surface (S). The strip belt assembly (30) comprises: a drive shaft (301); At least two strip belt units (300), each of the strip belt units (300) comprising: A driving roller (3001) is sleeved on the driving shaft (301) and rotates under the drive of the driving shaft (301); A strip belt (3002) is wound around the driving roller (3001) and is driven by the driving roller (3001) to rotate in a circular motion; Wherein, the strip belts (3002) included in different strip belt units (300) are arranged parallel to each other on the conveying operation surface (S); the driving rollers (3001) included in different strip belt units (300) have different radii, and the radii of the driving rollers (3001) are arranged so that the strip belts (3002) move according to a predetermined speed difference; Wherein, the strip belt assembly (30) also includes a tensioning shaft (302), and each of the strip belt units (300) also includes a tensioning roller (3003), the strip belt (3002) is wound around the tensioning roller, and the tensioning roller (3003) is independently detachable.

2. The curved belt conveyor according to claim 1, characterized in that: The ratio of the radii of the driving rollers (3001) of the at least two strip belt units (300) and the ratio of the lengths of the corresponding strip belts (3002) on the conveying working surface (S) are equal.

3. The curved belt conveyor according to claim 1, characterized in that: The tensioning shaft (302) is arranged parallel to the driving shaft (301); the tensioning roller (3003) is installed on the tensioning shaft (302) through a bearing, and can adjust the tension of the strip belt (3002) wound thereon.

4. The curved belt conveyor according to claim 3, characterized in that: The tensioning roller (3003) comprises two roller parts, and the roller parts can be interlocked on bearings at predetermined positions on the tensioning shaft (302).

5. The curved belt conveyor according to claim 1, characterized in that: include: The two adjacently arranged strip belt assemblies (30), one of which is arranged close to the feed end (10) and the other close to the discharge end (20), the conveying working surface of the strip belt assembly (30-1) close to the feed end is higher than the conveying working surface of the strip belt assembly (30-2) close to the discharge end.

6. The belt curve conveyor according to claim 5, characterized in that: The strip belt assembly (30-1) near the feed end and the strip belt assembly (30-2) near the discharge end include the same number of strip belt units, and the strip belts of the corresponding strip belt units move at the same speed on their respective conveying working surfaces.

7. The belt curve conveyor according to claim 5, characterized in that: The curved belt conveyor further comprises a motor (40), and the motor (40) simultaneously drives the driving shafts (301) in the two strip belt assemblies (30) to rotate.

8. The belt curve conveyor according to any one of claims 1 to 7, characterized in that: The turning belt conveyor comprises a frame (50), wherein the frame (50) is configured to place the strip belt assembly (30), and the frame (50) comprises a height adjustment device for adjusting the height of the conveying working surface (S) of the strip belt assembly (30).

9. The curved belt conveyor according to claim 1, characterized in that: The curved belt conveyor comprises two side baffles (60) disposed between the feed end (10) and the discharge end (20), which are respectively located on both sides of the strip belt assembly (30) and are arranged perpendicular to the conveying working surface (S).

Images