CN209226090U - Confluence belt conveyor - Google Patents

Abstract

The utility model provides a kind of confluence belt conveyor, multiple parallel rollers of transmission mechanism are set around, on angularly disposed angle stick and slewing rollers by the belt cooperation with complete loop, it solves existing conveyer and constitutes technical problem caused by whole belt using several different length narrowbands, make belt be easy to adjust correction, maintenance, maintenance and durability to improve, and then ensure that the technical effects such as article conveying smoothness on conveyer.

Description

Separating and combining belt conveyor

Technical Field

The utility model relates to a conveyer technical field with annular load transport surface relates to deciliter confluence band conveyer particularly.

Background

The belt conveyor is also called a belt conveyor or a rubber belt conveyor, and is an indispensable economic logistics conveying device for forming a rhythmic assembly line. The belt conveyor can be selected to form linear bodies such as straight lines, curved lines, slopes, dividing and converging lines and the like according to the requirements of line production.

The split-flow belt conveyor is widely applied to logistics distribution centers and automatic warehousing systems at present, and has two functions of flow merging and flow dividing through adjustment of the conveying direction. As shown in fig. 1, a schematic diagram of confluence of two conveying lines, namely a converging-diverging belt conveyor a (also called an angle belt conveyor) and a linear belt conveyor B, is shown, and the packages are flushed onto the linear belt conveyor B after being conveyed to the tail end of the converging-diverging belt conveyor a by controlling the converging-diverging belt conveyor a to have a faster conveying speed, so that the packages on the two conveying lines are merged onto one conveying line. Further, in diversion conveyance, the packages are combined with a diverter to cause the packages to flow from one conveying line to another line through a diversion sorter (not shown), thereby achieving a diversion process.

It is worth noting that the rapid development of the internet of things drives the development of the e-commerce and express delivery industries, and in the process of shunting, combining and converging of goods, along with the increase of the quantity of the goods, the labor intensity of workers is higher and higher, and the labor cost is higher and higher. However, the transmission of the current shunting and converging equipment adopts a plurality of narrow-band situations, but the narrow-band situations are easy to cause narrow-band abrasion and inconvenient narrow-band debugging, the phenomena of slipping and the like are easy to occur in the operation process, and the condition of long-time high-speed operation on site cannot be met.

In addition, the belt that present deciliter class band conveyer used is a plurality of different length narrowbands, has the gap between every narrowband, requires to have the restriction to the shape through the parcel, and the parcel piles up easy folder and block the parcel when the belt on, causes belt and parcel damage. In addition, whether a power section is arranged at the inclined interface position of the end part of the narrow-band converging machine and the linear belt conveyor or not can also influence the stable state of package passing; in addition, the adjustment of the narrow-band converging machine is relatively troublesome, a plurality of narrow bands with different lengths are not easy to control simultaneously, the all-dimensional deviation adjustment cannot be realized, the maintenance is difficult, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the utility model provides a branching and converging belt conveyor, through with a complete annular belt cooperation around the angle stick and the steering roll of locating a plurality of parallel rollers of drive mechanism, slant setting, solved current conveyer and adopted a plurality of different length narrowband to constitute the produced technical problem of whole belt, make the belt easily adjust and rectify a deviation, maintenance and durability improve, and then guaranteed technical effect such as article transport steadiness on the conveyer.

In order to achieve the above object, the utility model discloses the technical scheme who takes provides a flow dividing and converging belt conveyor, include: the rack comprises an upper supporting plate, a lower partition plate and an installation space arranged between the upper supporting plate and the lower partition plate in a spaced mode; the planar shape of the frame forms a trapezoid and is provided with a relative long side and a short side which extend along the conveying direction, and a relative flat side and an inclined side which are connected between the long side and the short side; the transmission mechanism comprises a driving roller, a tensioning roller, a nose roller, an angle rod and a steering roller; the driving roller, the tensioning roller and the head roller are respectively arranged in the installation space of the rack in parallel with the flat side edge of the rack; the driving roller is arranged in the middle of the installation space, and one end of the driving roller is connected with the motor; the tensioning roller is arranged on one side of the driving roller; the machine head roller is arranged along the flat side edge of the rack; the angle bars are arranged along the oblique side edge of the rack and form an included angle of 25-65 degrees with the conveying direction, each angle bar comprises a first guide rod and a second guide rod which are arranged in parallel up and down and do not rotate, and the first guide rods and the second guide rods are respectively round steel pipes and form winding gaps of the angle bars at intervals; the end part of the steering roller and the end part of the angle rod are adjacently arranged along the long side edge of the rack, and the steering roller is positioned on the same horizontal plane corresponding to the winding gap of the angle rod; the belt is a complete annular conveying belt and is driven to run by the friction force between the inner surface of the belt and the surface of the driving roller; and the belt is wound around the tension roller, the machine head roller, the first guide rod of the angle rod, the steering roller and the second guide rod of the angle rod from the driving roller in sequence and then wound back to the driving roller.

In the embodiment of the utility model, when the conveying direction of the conveyor is confluence, the tensioning roller is arranged at one side of the driving roller far away from the machine head roller; when the direction of delivery of conveyer is for the reposition of redundant personnel, the tensioning roller is located the drive roller orientation one side of aircraft nose roller.

In the embodiment of the present invention, the transmission mechanism further comprises a deviation adjusting roller, and the deviation adjusting roller and the tensioning roller are disposed on the same side of the driving roller and below the tensioning roller; the belt bypasses the second guide rod of the angle bar, bypasses the deviation adjusting roller and then bypasses the driving roller.

The embodiment of the utility model provides an in, furtherly, the both ends of accent eccentric roll are equipped with the accent inclined to one side handle, accent eccentric roll with it is L shape connection to have the adapter switching between the accent inclined to one side handle.

In the embodiment of the utility model, the conveyor also comprises a tensioning mechanism connected with two ends of the tensioning roller; the convex shafts at the two ends of the tensioning roller are respectively provided with an assembling hole; the tensioning mechanism comprises two elastic adjusting components which are movably connected with two ends of the tensioning roller and are fixedly arranged in the installation space of the frame, and each elastic adjusting component comprises a screw rod, a compression spring, an adjusting nut arranged in the middle section of the screw rod and limiting nuts arranged at two ends of the screw rod; the screw rod penetrates through an assembling hole in the convex shaft of the tensioning roller, the compression spring is sleeved outside the screw rod and positioned between the convex shaft and a limiting nut at one end of the convex shaft, and the adjusting nut and the compression spring are oppositely arranged on two sides of the convex shaft; therefore, the compression degree of the compression spring is adjusted by rotating the adjusting nut to displace along the screw rod, so that the tension or the relaxation of the belt is realized by adjusting the force of the compression spring pressing against the tension roller.

The embodiment of the utility model provides an in, furtherly, the frame in the top board with be equipped with two mount pads in direction of delivery's relative both sides between the baffle down, the mount pad takes shape there are two lugs, elasticity adjusting part passes through wear to put at the both ends of screw rod two lugs, and pass through stop nut lock respectively in the relative both sides of lug and set firmly in on the mount pad.

In the embodiment of the utility model, the surface of drive roller through set up the annular knurl or the rubber of a plurality of millimeters thick of cladding one deck with increase with frictional force between the belt inner face.

In the embodiment of the utility model, the first guide arm of angle stick, second guide arm surface spraying have smooth wear-resisting material layer.

In the embodiment of the utility model, the end parts of the two ends of the first guide rod and the second guide rod of the angle rod are respectively and fixedly connected through a fixing seat group; the fixing seats are fixedly arranged at two ends of the oblique side edge of the rack, two arc grooves which are separated from each other from top to bottom are concavely arranged on each fixing seat, two ends of the first guide rod are respectively embedded and fixed in the upper arc grooves of the two fixing seats, two ends of the second guide rod are respectively embedded and fixed in the lower arc grooves of the two fixing seats, and the winding gap is formed between the first guide rod and the second guide rod through the two arc grooves which are separated from each other from top to bottom.

In the embodiment of the utility model, the drive roller the aircraft nose roller reaches turn to the roller shaping and expand into the roll body that has the tapering for both ends tip.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description and appended claims, and may be realized by means of the instrumentalities, devices and combinations particularly pointed out in the appended claims.

Drawings

Fig. 1 is a schematic view showing a state of use of a conventional branching and joining belt conveyor in a joining state with a linear belt conveyor to form an angle type conveyor.

Fig. 2 is a schematic overall appearance diagram of the branching and converging belt conveyor of the present invention.

Fig. 3 is a schematic view of the long-side viewing angle three-dimensional structure of the conveyor transmission mechanism and the belt of the present invention.

Fig. 4 is a schematic view of the oblique side view perspective structure of the conveyor part frame, the transmission mechanism and the belt of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the conveyor belt around the rollers and the angle bar of the transmission mechanism.

Fig. 6 is a schematic view showing a sectional view of the combination structure of the angle bar with the belt wound thereon.

Fig. 7 is a partially enlarged schematic view of a short side structure of the conveyor of fig. 4 according to the present invention.

Fig. 8 is a schematic view of the deviation adjusting roller, the installation position of the tensioning mechanism and the winding shape of the belt of the conveyor in confluence conveying.

Fig. 9 is a schematic view of the installation positions of the offset roller, the tensioning mechanism and the belt winding configuration of the conveyor in the shunt conveying process of the present invention.

The correspondence of reference numerals to components is as follows:

the converging-diverging belt conveyor A; a linear belt conveyor B; a frame 10; an upper pallet 11; a lower partition plate 12; a baffle 13; a leg 14; a mounting seat 15; a connecting seat 16; a transmission mechanism 20; a drive roller 21; a motor 211; a tension roller 22; a protruding shaft 221; a head roller 23; an angle bar 24; a first guide bar 241; a second guide bar 242; a fixing base 243; an arc groove 244; a steering roller 25; a dust cover 251; an offset adjusting roller 26; a bias adjustment handle 261; an adapter 262; a belt 30; a tension mechanism 40; a screw 41; a compression spring 42; an adjusting nut 43; and a limit nut 44.

Detailed Description

Detailed embodiments of the present invention will be disclosed herein. It is to be understood, however, that the disclosed embodiments are merely exemplary of the invention and that the invention may be embodied in various and alternative forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

To facilitate understanding of the present invention, the following description is made with reference to fig. 1 to 9 and the embodiments.

The utility model provides a flow dividing and converging belt conveyor, as shown in fig. 2 to 9, conveyer chartered plane frame 10 and locating drive mechanism 20, belt 30 and straining device 40 in the frame 10. Wherein the transmission mechanism 20 comprises a plurality of rollers and an angle bar 24 having an angle of less than 90 ° with the conveying direction; the belt 30 is driven by winding around the rollers and the angle bar 24 to convey the articles; the tensioning mechanism 40 is connected with a tension roller 22 of the plurality of rollers to adjust the position of the tension roller 22 to tension or relax the belt 30.

As shown in fig. 2, 4, 7 and 8, the rack 10 includes an upper supporting plate 11 and a lower partition plate 12 which are spaced apart from each other in an up-down direction, and an installation space of the transmission mechanism 20 in the rack 10 is formed between the upper supporting plate 11 and the lower partition plate 12; the upper supporting plate 11 and the lower partition plate 12 are generally trapezoidal plates, so that the planar shape of the frame 10 is trapezoidal and has a long side and a short side extending along the conveying direction and a flat side and an oblique side connected between the long side and the short side. The upper supporting plate 11 is provided with baffle plates 13 at two opposite sides along the conveying direction to prevent conveyed articles from exceeding the conveying area. The bottom of the lower partition 12 is provided with a plurality of support legs 14 along two opposite parallel sides of the trapezoid thereof for supporting the whole frame 10 in an elevated manner, and the number of the support legs 14 can be adjusted according to the length of the conveyor. Two mounting seats 15 are arranged between the upper supporting plate 11 and the lower partition plate 12 at two opposite sides of the conveying direction for mounting the tensioning mechanism 40.

As shown in fig. 3, 4, 5, 6 and 8, the transmission mechanism 20 includes a driving roller 21, a tension roller 22, a head roller 23, an angle bar 24 and a steering roller 25. Wherein, drive roller 21 the tensioning roller 22 reaches the aircraft nose roller 23 respectively with the flat side of frame 10 set up in parallel to each other in the installation space of frame 10, drive roller 21 locates the intermediate position and the one end of installation space are connected with motor 211, tensioning roller 22 locates one side of drive roller 21, aircraft nose roller 23 is followed the flat side of frame 10 sets up. The angle bar 24 is arranged along the oblique side edge of the frame 10, as shown in fig. 3, the included angle theta between the angle bar 24 and the conveying direction of the conveyor is 25 degrees to 65 degrees, so that the split and combined flow belt conveyor of the utility model has an included angle of 25 degrees to 65 degrees when being combined with a linear belt conveyor; the angle bar 24 includes a first guide bar 241 and a second guide bar 242 which are arranged in parallel up and down and do not rotate, the first guide bar 241 and the second guide bar 242 are respectively circular steel tubes, and a gap is formed between the first guide bar 241 and the second guide bar 242 by winding of the angle bar 24. The end part of the steering roller 25 and the end part of the angle rod 24 are adjacently arranged along the long side of the frame 10, and the steering roller 25 is corresponding to the winding gap of the angle rod 24 and is positioned on the same horizontal plane.

In addition, in order to avoid the problem that the belt 30 of the split-flow belt conveyor of the present invention deviates from the position where the aforementioned multiple rollers revolve and affects the working efficiency of the conveyor, as shown in fig. 3, 4, 5, 7 and 8, the transmission mechanism 20 further includes an offset roller 26 which is located on the same side as the driving roller 21 and below the tension roller 22 as the tension roller 22. The two ends of the deviation-adjusting roller 26 are provided with deviation-adjusting handles 261 for adjusting the horizontal position of the deviation-adjusting roller 26, and further adjusting the revolving position of the belt 30 relative to the rollers, so as to form a simple deviation-adjusting mechanism easy to maintain and repair. Specifically, an adapter 262 is arranged between the deviation adjusting roller 26 and the deviation adjusting handle 261 and is connected in an L-shaped manner in an adapter manner, the adapter 262 is an L-shaped plate, one plate portion is fixedly connected with protruding shafts at two ends of the deviation adjusting roller 26, and the other plate portion is fixedly locked at two sides of the plate portion through nuts after being penetrated by the deviation adjusting handle 261, so that the adapter 262 and the deviation adjusting handle 261 are fixedly connected.

As shown in fig. 3, 4, 5 and 8, the belt 30 is a complete ring-shaped conveyor belt, and sequentially winds from the driving roller 21 to the tension roller 22, the head roller 23, the first guide rod 241 of the angle bar 24, the steering roller 25, the second guide rod 242 of the angle bar 24 and the deviation adjusting roller 26, and then returns to the driving roller 21. Specifically, as shown in fig. 5, the belt 30 extends around the driving roller 21 toward the tension roller 22, extends around the tension roller 22, extends toward the head roller 23 in the opposite direction, and extends around the head roller 23 toward the angle bar 24; when the belt 30 is wound around the angle bar 24, the belt firstly passes through the winding gap of the angle bar 24 from above the first guide bar 241, extends toward the steering roller 25 by utilizing the angle turning of the angle bar 24, passes through the upper side of the steering roller 25, extends toward the second guide bar 242 of the angle bar 24 from below the steering roller 25, passes through the winding gap of the angle bar 24, passes through the second guide bar 242, and finally extends toward the driving roller 21 from below the second guide bar 242, so that a complete winding structure of the belt 30 is formed. The deviation-adjusting roller 26 is located below the section of the belt 30 between the second guide rod 242 and the driving roller 21 and presses the belt 30 upwards, so that the deviation-adjusting effect on the belt 30 is achieved by adjusting the horizontal position of the deviation-adjusting roller 26.

In the embodiment of the present invention, the driving roller 21 is driven by the motor 211 to rotate, and then drives the whole belt 30 to move through the surface and the inner surface of the belt 30, and further the belt 30 drives the tensioning roller 22, the head roller 23, the steering roller 25 and the deviation adjusting roller 26 rotate to complete the movement of the whole belt 30 around the installation. Preferably, the surface of the driving roller 21 may be knurled or covered with a rubber layer several millimeters thick to increase friction.

In the embodiment of the present invention, as shown in fig. 4 and fig. 6, the end portions of the two ends of the first guide rod 241 and the second guide rod 242 of the angle bar 24 are respectively connected to each other by a fixing seat 243; the fixing seats 243 are fixedly arranged at two ends of the inclined side of the frame 10, two arc grooves 244 spaced up and down are concavely arranged on each fixing seat 243, two ends of the first guide rod 241 are respectively embedded and fixed in the upper arc grooves 244 of the two fixing seats 243, two ends of the second guide rod 242 are respectively embedded and fixed in the lower arc grooves 244 of the two fixing seats 243, and therefore, the first guide rod 241 and the second guide rod 242 form a round rod which is parallel up and down and does not rotate through fixedly connecting with the fixing seats 243.

Preferably, the surfaces of the first guide bar 241 and the second guide bar 242 of the angle bar 24 are coated with a smooth wear-resistant material layer (not shown) to reduce the heat accumulated when the inner surface of the belt 30 rubs against the surface of the bar body. In addition, the first guide bar 241 and the second guide bar 242 can be fixed and fixed by bolts after being embedded in the fixing seat 243, so as to be fixed and not rotate when being rotated by the belt 30.

In the embodiment of the present invention, as shown in fig. 2 and 4, the steering roller 25 is disposed outside the installation space of the frame 10, and is covered with a dust cover 251.

In the embodiment of the utility model provides an in, in order to avoid belt 30 around locating the position off tracking of a plurality of rollers, drive roller 21 the aircraft nose roller 23 reaches turn to roller 25 can further take shape and expand into the roll body that has the tapering for both ends tip, borrow this to realize that belt 30 draws close to the roll body center automatically when rotating to play the effect that belt 30 is automatic to rectify.

In the embodiment of the present invention, the mounting space of the frame 10 is provided with connecting structures (not shown) on two opposite sides of the conveying direction, and the driving roller 21, the tensioning roller 22, and the nose roller 23 are respectively connected to the connecting structures of the frame 10 via protruding shafts at two ends of the driving roller, so as to rotate the rollers. As shown in fig. 2, the frame 10 is further provided with a connecting seat 16 for installing the turning roll 25 through the upper supporting plate 11 and the lower partition plate 12, and the turning roll 25 is rotatably assembled with the connecting seat 16 through protruding shafts protruding from both ends thereof, so as to realize the rotation thereof.

As shown in fig. 3, 4, 7 and 8, the protruding shafts 221 at both ends of the tension roller 22 are respectively provided with an assembling hole (shielded by the limit nut 44 in fig. 7); the tensioning mechanism 40 comprises two elastic adjusting components movably connected with two ends of the tensioning roller 22, and each elastic adjusting component comprises a screw rod 41, a compression spring 42, an adjusting nut 43 arranged at the middle section of the screw rod 41 and limit nuts 44 arranged at two ends of the screw rod 41; the screw rod 41 is arranged in the assembling hole on the protruding shaft 221 of the tensioning roller 22 in a penetrating manner, the compression spring 42 is sleeved outside the screw rod 41 and is positioned between the protruding shaft 221 and the limit nut 44 at one end, and the adjusting nut 43 and the compression spring 42 are oppositely arranged on two sides of the protruding shaft 221. Specifically, the mounting seat 15 of the frame 10 is formed with two lugs, and the elastic adjusting component is fixed on the mounting seat 15 by respectively fastening the two lugs and the limiting nut 44 at two ends of the screw rod 41 to opposite sides of the lugs. Thereby, the degree of compression of the compression spring 42 is adjusted by rotating the adjusting nut 43 to displace along the screw rod 41, so as to tension or relax the belt 30 by the force of the compression spring 42 against the tension roller 22; that is, by varying the compression length of the compression spring 42 to vary the tension of the belt 30, a smaller tension may achieve a minimized friction force between the belt 30 and the angle bar 24, thereby increasing the durability of the belt 30.

In the embodiment of the utility model provides an in, the utility model discloses a divide confluence band conveyer can be used to the confluence and carry or the reposition of redundant personnel is carried. The converging conveying direction is from the flat side of the frame 10 to the inclined side, and the diverging conveying direction is from the inclined side of the frame 10 to the flat side. Fig. 2 to 8 show an example of the installation of the tensioning mechanism 40 when the conveyor performs the confluence conveying, and fig. 9 shows an example of the installation of the tensioning mechanism 40 when the conveyor performs the diversion conveying. As shown in fig. 8, when performing the merge conveyance, the tension roller 22 and the tension mechanism 40 should be disposed on the side of the drive roller 21 away from the nose roller 23 (the left side of the drive roller 21 in fig. 8), and the offset roller 26 and the tension mechanism 40 should be disposed on the same side of the drive roller 21; as shown in fig. 9, in the split conveyance, the tension roller 22 and the tension mechanism 40 should be provided on the side of the drive roller 21 facing the head roller 23 (the right side of the drive roller 21 in fig. 9), and the offset roller 26 and the tension mechanism 40 should be provided on the same side of the drive roller 21. Therefore, the conveyor of the utility model can effectively meet the requirements of confluence conveying or diversion conveying by adjusting the installation position of the tensioning mechanism 40 relative to the driving roller 21, and further realize the adjustment of the tensioning degree of the belt 30 to realize the high-speed operation of the conveyor; straining device 40 has easy maintenance simultaneously and improves effects such as conveyer letter sorting efficiency.

The present invention has been described in detail with reference to the drawings and the embodiments, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims (10)

1. A split flow belt conveyor, comprising:

the rack comprises an upper supporting plate, a lower partition plate and an installation space arranged between the upper supporting plate and the lower partition plate in a spaced mode; the planar shape of the frame forms a trapezoid and is provided with a relative long side and a short side which extend along the conveying direction, and a relative flat side and an inclined side which are connected between the long side and the short side;

the transmission mechanism comprises a driving roller, a tensioning roller, a nose roller, an angle rod and a steering roller; the driving roller, the tensioning roller and the head roller are respectively arranged in the installation space of the rack in parallel with the flat side edge of the rack; the driving roller is arranged in the middle of the installation space, and one end of the driving roller is connected with the motor; the tensioning roller is arranged on one side of the driving roller; the machine head roller is arranged along the flat side edge of the rack; the angle bars are arranged along the oblique side edge of the rack and form an included angle of 25-65 degrees with the conveying direction, each angle bar comprises a first guide rod and a second guide rod which are arranged in parallel up and down and do not rotate, and the first guide rods and the second guide rods are respectively round steel pipes and form winding gaps of the angle bars at intervals; the end part of the steering roller and the end part of the angle rod are adjacently arranged along the long side edge of the rack, and the steering roller is positioned on the same horizontal plane corresponding to the winding gap of the angle rod;

the belt is a complete annular conveying belt and is driven to run by the friction force between the inner surface of the belt and the surface of the driving roller; and the belt is wound around the tension roller, the machine head roller, the first guide rod of the angle rod, the steering roller and the second guide rod of the angle rod from the driving roller in sequence and then wound back to the driving roller.

2. The branching and converging belt conveyor according to claim 1, characterized in that:

when the conveying direction of the conveyor is confluent, the tensioning roller is arranged on one side of the driving roller, which is far away from the nose roller;

when the direction of delivery of conveyer is for the reposition of redundant personnel, the tensioning roller is located the drive roller orientation one side of aircraft nose roller.

3. The branching and converging belt conveyor according to claim 1 or 2, characterized in that:

the transmission mechanism further comprises a deviation adjusting roller, and the deviation adjusting roller and the tensioning roller are arranged on the same side of the driving roller and are positioned below the tensioning roller; the belt bypasses the second guide rod of the angle bar, bypasses the deviation adjusting roller and then bypasses the driving roller.

4. The branching and converging belt conveyor according to claim 3, characterized in that:

and two ends of the deviation adjusting roller are provided with deviation adjusting handles, and a transfer seat is arranged between the deviation adjusting roller and the deviation adjusting handles for transferring and connecting in an L shape.

5. The branching and converging belt conveyor according to claim 1 or 2, characterized in that:

the conveyor also comprises a tensioning mechanism connected with two ends of the tensioning roller; wherein,

the convex shafts at the two ends of the tensioning roller are respectively provided with an assembling hole;

the tensioning mechanism comprises two elastic adjusting components which are movably connected with two ends of the tensioning roller and are fixedly arranged in the installation space of the frame, and each elastic adjusting component comprises a screw rod, a compression spring, an adjusting nut arranged in the middle section of the screw rod and limiting nuts arranged at two ends of the screw rod; the screw rod penetrates through an assembling hole in the convex shaft of the tensioning roller, the compression spring is sleeved outside the screw rod and positioned between the convex shaft and a limiting nut at one end of the convex shaft, and the adjusting nut and the compression spring are oppositely arranged on two sides of the convex shaft;

therefore, the compression degree of the compression spring is adjusted by rotating the adjusting nut to displace along the screw rod, so that the tension or the relaxation of the belt is realized by adjusting the force of the compression spring pressing against the tension roller.

6. The branching and converging belt conveyor according to claim 5, characterized in that:

the frame is provided with two mounting seats at two opposite sides in the conveying direction between the upper supporting plate and the lower partition plate, the mounting seats are provided with two lugs, and the elastic adjusting assembly penetrates through the two lugs through two ends of the screw rod and is fixedly arranged on the mounting seats through the limiting nuts which are respectively locked at two opposite sides of the lugs.

7. The branching and converging belt conveyor according to claim 1, characterized in that:

the surface of the driving roller is provided with knurling or coated with a layer of rubber with the thickness of a plurality of millimeters so as to increase the friction force between the driving roller and the inner surface of the belt.

8. The branching and converging belt conveyor according to claim 1, characterized in that:

and smooth wear-resistant material layers are sprayed on the surfaces of the first guide rod and the second guide rod of the angle rod.

9. The branching and converging belt conveyor according to claim 1 or 8, characterized in that:

the end parts of the two ends of the first guide rod and the second guide rod of the angle rod are fixedly connected through a fixing seat group respectively; the fixing seats are fixedly arranged at two ends of the oblique side edge of the rack, two arc grooves which are separated from each other from top to bottom are concavely arranged on each fixing seat, two ends of the first guide rod are respectively embedded and fixed in the upper arc grooves of the two fixing seats, two ends of the second guide rod are respectively embedded and fixed in the lower arc grooves of the two fixing seats, and the winding gap is formed between the first guide rod and the second guide rod through the two arc grooves which are separated from each other from top to bottom.

10. The branching and converging belt conveyor according to claim 1, characterized in that:

the driving roller, the nose roller and the steering roller are formed into roller bodies with tapers formed by expanding end parts of two ends.