Centering conveying equipment for small parcels

Abstract

The utility model relates to the technical field of logistics equipment, in particular to centering conveying equipment for small parcels, which comprises a rack and two groups of first conveying components respectively arranged on two sides of the top of the rack, and the conveying lines of the two groups of first conveying components form a V shape; a second conveying assembly is further arranged at the top of the rack, the two first conveying assemblies are symmetrically arranged on the two sides of the second conveying assembly relative to the second conveying assembly, a conveying channel with the V-shaped cross section is defined by the tops of the two first conveying assemblies and the top of the second conveying assembly, and the conveying channel is provided with an inlet end and an outlet end; the second conveying assemblies are used for conveying the small packages from the inlet end to the outlet end in the horizontal direction, and the included angles between the conveying direction of the first conveying assemblies and the conveying direction of the second conveying assemblies are equal. According to the utility model, the small parcels only bear the force in the horizontal conveying direction when being conveyed in the middle, so that the jumping condition is avoided, and the stability of the small parcels in the middle conveying is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics equipment, and more specifically, to a centering conveying device for small packages. Background Art

[0002] With the rapid development of the logistics industry, the distribution volume of small packages has been increasing year by year, putting forward higher requirements for the efficiency, stability and intelligence level of logistics conveying equipment. When dealing with small packages, current traditional conveying equipment often has problems such as easy clamping, jamming and stopping of packages, which affect the conveying efficiency of packages.

[0003] The prior art discloses a centering and side-edge device, including a main frame, on which a conveying mechanism is provided. The conveying mechanism includes a first conveying part and a second conveying part arranged adjacent to each other. The conveying lines of the first conveying part and the second conveying part are in a V shape. The first conveying part and the second conveying part both include a plurality of flat multi-wedge belt rollers rotatably connected to the main frame. The flat multi-wedge belt rollers of the first conveying part and the second conveying part are all arranged in parallel, and the flat multi-wedge belt rollers of the first conveying part and the second conveying part are arranged at an angle. The conveying mechanism further includes an O-belt idler. One end of the first conveying part and the second conveying part forms an angle by the flat multi-wedge belt rollers, and the O-belt idler is located at the angle position formed by the first conveying part and the second conveying part. In this solution, the purpose of centering the package can be achieved by the V-shaped first conveying part and the second conveying part. The O-belt idler is used to fill the interval without flat multi-wedge belt rollers formed at the intersection position of the first conveying part and the second conveying part to prevent the package from jamming when reaching the corner position. However, after the package is centered, it is still affected by the acting forces of the first conveying part and the second conveying part, and is prone to jumping. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency that the package is prone to jumping after being centered in the prior art, and to provide a centering conveying device for small packages, ensuring that the small package is only affected by the force in the horizontal conveying direction during centering conveying, avoiding the situation of the small package jumping, and improving the smoothness of centering conveying of the small package.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is a centering conveying device for small packages, including a frame and two groups of first conveying components respectively arranged on both sides of the top of the frame. The transportation lines of the two groups of first conveying components form a "V" shape; a second conveying component is further arranged on the top of the frame. The two groups of first conveying components are symmetrically arranged on both sides of the second conveying component. The tops of the two groups of first conveying components and the top of the second conveying component enclose a conveying channel with a "V"-shaped cross-section. The conveying channel is provided with an inlet end and an outlet end. The second conveying component is used to horizontally convey small packages from the inlet end to the outlet end. The included angle between the conveying direction of each group of first conveying components and the conveying direction of the second conveying component is equal.

[0007] When the centering conveying device for small packages of the present utility model is in use, small packages enter the conveying channel from the inlet end. Since the transportation lines of the two groups of first conveying components form a "V" shape and the second conveying component conveys small packages horizontally, there are forces in three conveying directions on different small packages on it, and the resultant force direction is the horizontal direction from the inlet end to the outlet end, which can achieve the purpose of centering small packages. The cross-section of the conveying channel is "V"-shaped. When the small package is on the first conveying component, it can further center the small package; due to the setting of the second conveying component, the included angle of the forces in the two conveying directions on the small package during centering is small, which can prevent the small package from slipping and tipping over; after the small package is centered, it is only affected by the horizontal conveying force of the second conveying component, reducing the conveying resistance of the small package and avoiding the situation of the small package jumping, and improving the smoothness of the centering conveying of the small package.

[0008] Further, a first cross brace located at the inlet end and a second cross brace located at the outlet end are provided on the top of the frame. Outer side plates are respectively connected between the two ends of the first cross brace and the two ends of the second cross brace. An intermediate cross brace and two inner side plates are connected between the middle parts of the first cross brace and the second cross brace. The two inner side plates are located on both sides of the top of the intermediate cross brace. The two inner side plates and the intermediate cross brace form a space for installing the second conveying component. A space for installing the first conveying component is formed between the outer side plate and the inner side plate on the same side of the intermediate cross brace. The two first conveying components and the second conveying component are respectively installed. When one of them fails or is damaged, only the corresponding component needs to be repaired or replaced, improving the maintenance efficiency and reducing the maintenance cost.

[0009] Further, the second conveying assembly includes a first driving mechanism, a first short roller, a second short roller and two first supporting seats, a plurality of the short rollers are arranged in parallel from the inlet end to the outlet end, the second short rollers and the first short rollers are arranged in parallel, and the second short rollers are located at the outlet end, the first short rollers are rotatably installed between the two inner side plates, the first supporting seat is arranged at the top of the second cross brace, the second short rollers are rotatably installed between the two first supporting seats, the first driving mechanism is installed on the frame and the first driving mechanism is located below the first short rollers and the second short rollers, the first driving mechanism is respectively connected to the first short rollers and the second short rollers in transmission, and the conveying directions of the two groups of the first conveying assemblies have the same angle with the central axis of the first short rollers. The conveying direction of the small parcels on the first short roller and the second short roller is equal to the angle between the conveying direction of the two groups of first conveying components. After the small parcel is centered, it is only conveyed horizontally by the first short roller and the second short roller without deviating to the sides of the equipment, avoiding the jumping of the small parcel, improving the smoothness of the conveying, and ensuring that the small parcel can smoothly enter the subsequent conveyor line.

[0010] Further, the first driving mechanism includes a first electric roller mechanism, the first electric roller mechanism includes a first electric roller, a first bracket, a first pressure plate, a guide bolt, a first compression spring and a first adjusting nut, the first electric roller is rotatably mounted on both sides of the first bracket, the first electric roller contacts the first short roller and / or the second short roller, the first pressure plate is fixedly arranged on the top of the first bracket, the two sides of the first bracket are respectively connected to the frame through the guide bolts, the first adjusting nut is threadedly connected to the guide bolt, the first compression spring is wound around the guide bolt, and the two ends of the first compression spring are respectively connected to the first adjusting nut and the first bracket. By adjusting the installation position of the first adjusting nut on the guide bolt, the elastic force of the first compression spring can be adjusted to ensure that the first electric roller can provide effective power without causing failure due to excessive pressure.

[0011] Furthermore, the first driving mechanism includes a second electric roller mechanism, and the second electric roller mechanism includes a second bracket, a second pressing plate, a support, a second compression spring, a support bolt, a second adjusting nut, and at least two second electric rollers. The second electric rollers are rotatably installed on both sides of the second bracket, and the second electric rollers contact the first short roller and / or the second short roller. The second pressing plate is fixedly arranged on the top of the second bracket. A first guide post is arranged at the bottom of the second bracket, and the first guide post passes through the support. The second compression spring is wound around the first guide post, and both ends of the second compression spring are respectively connected to the bracket and the support. The support is arranged on the top of the frame, and the support bolt passes through the frame and is in threaded connection with the second adjusting nut and the support in sequence. By rotating the second adjusting nut, the support bolt can move up and down to adjust the height of the support, and further adjust the elastic force of the second compression spring, ensuring that the second electric roller can provide effective power without being damaged due to excessive pressure.

[0012] Furthermore, the first driving mechanism includes a third electric roller mechanism, and the third electric roller mechanism includes a third electric roller, a third bracket, a third pressing plate, a third compression spring, a guide seat, and an adjusting bolt. The third electric roller is rotatably installed on both sides of the third bracket, and the third electric roller contacts the first short roller and / or the second short roller. The third pressing plate is fixedly arranged on the top of the third bracket. A second guide post is arranged at the bottom of the third bracket, and the guide seat is installed on the frame. The guide seat is provided with a guide sleeve, and one end of the second guide post passes through the guide sleeve. The adjusting bolt is installed at the other end of the guide sleeve, and both ends of the third compression spring are respectively connected to the second guide post and the adjusting bolt. By adjusting the adjusting bolt, the connection depth between the adjusting bolt and the guide sleeve can be changed, and further the elastic force of the third compression spring can be adjusted, ensuring that the third electric roller can provide effective power without being damaged due to excessive pressure.

[0013] Furthermore, the first conveying assembly includes a second driving mechanism and a plurality of first multi-wedge belt rollers arranged in parallel. Both ends of the first multi-wedge belt rollers are rotatably installed between the outer side plate and the inner side plate. One end of the first multi-wedge belt roller close to the inner side plate inclines towards the entrance end. The second driving mechanism is installed on the frame, and the plurality of first multi-wedge belt rollers are respectively in transmission connection with the second driving mechanism. The conveying direction of the first multi-wedge belt roller for small packages inclines from the entrance end to the exit end towards the second conveying assembly, realizing the centering of small packages.

[0014] Furthermore, the second driving mechanism includes a reduction motor, a multi-wedge pulley, a driving multi-wedge belt, and a transmission multi-wedge belt. The reduction motor is installed on the frame. The output shaft of the reduction motor is coaxially connected to the multi-wedge pulley. One end of the first multi-wedge belt roller is connected to the multi-wedge pulley through the driving multi-wedge belt. Adjacent first multi-wedge belt rollers are drivingly connected through the transmission multi-wedge belt. The multi-wedge belt has the advantages of large load, low price, excellent transmission efficiency, and low noise.

[0015] Furthermore, the first conveying assembly further includes a second multi-wedge belt roller and a second support seat. The second multi-wedge belt roller is arranged in parallel with the first multi-wedge belt roller and is located at the inlet end. The second support seat is arranged on the top of the first cross brace. The second multi-wedge belt roller is rotatably installed between the outer side plate and the second support seat. The second multi-wedge belt roller is drivingly connected to the first multi-wedge belt roller through the transmission multi-wedge belt. This can ensure that small packages can be conveyed immediately after entering the conveying channel.

[0016] Furthermore, the first conveying assembly further includes a third driving mechanism, a third short roller, and a third support seat. The third short roller is arranged in parallel with the first multi-wedge belt roller and is located at the outlet end. The third driving mechanism and the third support seat are respectively arranged on the top of the second cross brace. The third short roller is rotatably installed between the third support seat and the inner side plate. The third driving mechanism is located below the third short roller. The third driving mechanism is drivingly connected to the third short roller. This ensures that small packages can smoothly enter the subsequent conveying line after being conveyed by multiple first multi-wedge belt rollers. Among them, by independently driving the third short roller to rotate through the third driving mechanism, the conveying efficiency of small packages at the outlet end can be further improved.

[0017] Compared with the prior art, the beneficial effects of the in-center conveying device for small packages of the present utility model are as follows:

[0018] It can ensure that small packages are only subjected to the force in the horizontal conveying direction during in-center conveying, avoid the situation of small packages jumping, and improve the smoothness of in-center conveying of small packages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the in-center conveying device for small packages in an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the in-center conveying device for small packages in an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the in-center conveying device for small packages in an embodiment of the present utility model after removing some structural members;

[0022] Figure 4 It is a schematic structural diagram of the first electric roller mechanism in the first embodiment of the present utility model;

[0023] Figure 5 It is a schematic structural diagram of the second electric roller mechanism in the second embodiment of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of the third electric roller mechanism in the third embodiment of the present utility model;

[0025] Figure 7 is Figure 3 an enlarged view of the partial A in

[0026] In the attached drawings: 1 - frame; 11 - first cross brace; 12 - second cross brace; 13 - intermediate cross brace; 14 - outer plate; 15 - inner plate; 16 - leg component; 2 - first conveying assembly; 21 - first multi-wedge belt roller; 22 - second multi-wedge belt roller; 23 - third short roller; 24 - second driving mechanism; 241 - reduction motor; 242 - multi-wedge belt pulley; 243 - driving multi-wedge belt; 244 - transmission multi-wedge belt; 25 - second support seat; 26 - third support seat; 3 - second conveying assembly; 31 - first short roller; 32 - second short roller; 33 - first electric roller mechanism; 331 - first electric roller; 332 - first bracket; 333 - first pressing plate; 334 - guiding bolt; 335 - first compression spring; 336 - first adjusting nut; 34 - second electric roller mechanism; 341 - second electric roller; 342 - second bracket; 343 - second pressing plate; 344 - support; 345 - second compression spring; 346 - support bolt; 347 - second adjusting nut; 35 - third electric roller mechanism; 351 - third electric roller; 352 - third bracket; 353 - third pressing plate; 354 - third compression spring; 355 - guiding seat; 356 - adjusting bolt; 36 - first support seat;

[0027] Figure 2 The arrow in represents the conveying direction.

[0028] The following further explains the present utility model in conjunction with the specific embodiments. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0029] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] Embodiment 1

[0031] A centering conveying device for small packages, as Figure 1 , Figure 2 shown, includes a frame 1 and two groups of first conveying components 2 respectively arranged on both sides of the top of the frame 1. The transportation lines of the two groups of first conveying components 2 form a "V" shape; a second conveying component 3 is also arranged on the top of the frame 1. The two groups of first conveying components 2 are symmetrically arranged on both sides of the second conveying component 3 with respect to the second conveying component 3. The tops of the two groups of first conveying components 2 and the top of the second conveying component 3 enclose a conveying channel with a "V"-shaped cross-section. The conveying channel is provided with an inlet end and an outlet end. The second conveying component 3 is used to horizontally convey small packages from the inlet end to the outlet end. The included angle between the conveying direction of each group of first conveying components 2 and the conveying direction of the second conveying component 3 is equal.

[0032] For the above-mentioned centering conveying device for small packages, during use, small packages enter the conveying channel from the inlet end. Since the transportation lines of the two groups of first conveying components 2 form a "V" shape, the second conveying component 3 conveys small packages horizontally, and the included angle between the conveying direction of each group of first conveying components 2 and the conveying direction of the second conveying component 3 is equal. The device has forces in three conveying directions on different small packages thereon, and the resultant force direction is the horizontal direction from the inlet end to the outlet end, which can achieve the purpose of centering small packages. The cross-section of the conveying channel is "V"-shaped. When the small package is on the first conveying component 2, it can further center the small package; due to the setting of the second conveying component, the included angle between the two forces in the conveying directions that the small package receives during the centering process is small, which can prevent the small package from slipping and tipping over; after the small package is centered, it only receives the horizontal conveying force of the second conveying component 3, reducing the conveying resistance of the small package and avoiding the situation of the small package jumping, and improving the smoothness of the centering conveying of the small package.

[0033] As Figure 1 , Figure 3As shown in the figure, the top of the frame 1 is provided with a first cross brace 11 at the entrance end and a second cross brace 12 at the exit end. Outer side plates 14 are respectively connected to both ends of the first cross brace 11 and both ends of the second cross brace 12. An intermediate cross brace 13 and two inner side plates 15 are connected between the middle of the first cross brace 11 and the middle of the second cross brace 12. The two inner side plates 15 are located on both sides of the top of the intermediate cross brace 13. The two inner side plates 15 and the intermediate cross brace 13 form a space for installing the second conveying component 3. A space for installing the first conveying component 2 is formed between the outer side plate 14 and the inner side plate 15 on the same side of the intermediate cross brace 13. Specifically, the two groups of first conveying components 2 are respectively installed between the outer side plate 14 and the inner side plate 15 on the same side, and the second conveying component 3 is installed between the two inner side plates 15. The two first conveying components 2 and the second conveying component 3 are installed separately. When one of the groups fails or is damaged, only the corresponding component needs to be repaired or replaced, improving the maintenance efficiency and reducing the maintenance cost.

[0034] As Figure 1 , Figure 3 shown in the figure, the bottom of the frame 1 is provided with a leg component 16. The height of the conveying channel can be raised through the leg component 16, so that there is a certain height difference between the conveying channel and the subsequent conveying line, enabling small packages to fall smoothly on the subsequent conveying line after passing through the conveying channel.

[0035] As Figures 1 to 3 shown in the figure, the second conveying component 3 includes a first driving mechanism and a plurality of first short rollers 31. The plurality of first short rollers 31 are arranged in parallel from the entrance end to the exit end. The first short rollers 31 are rotatably installed between the two inner side plates 15. The first driving mechanism is installed on the frame 1 and is located below the first short rollers 31. The first driving mechanism is in transmission connection with the first short rollers 31. Specifically, the conveying directions of the two groups of first conveying components 2 are at equal angles with the central axis of the first short rollers 31. During implementation, the first driving mechanism respectively drives the first short rollers 31 and the second short rollers 32 to rotate, so that the conveying direction of the first short rollers 31 for the small packages thereon is at an equal angle with the conveying directions of the two groups of first conveying components 2. After the small packages are centered, they are only horizontally conveyed by the first short rollers 31 without shifting to both sides of the equipment, and at the same time, the situation of the small packages jumping is avoided, improving the smoothness of conveying.

[0036] Since the transportation lines of the two groups of first conveying components 2 form a "V" shape, an idle space is formed between the two groups of first conveying components 2 at the exit end and the first short rollers 31 far from the entrance end. After being conveyed by the plurality of first short rollers 31, the small packages will fall into the idle space and cannot smoothly enter the subsequent conveying line. Therefore, as Figures 1 to 3As shown, the second conveying component 3 further includes a second short roller 32 and two first support seats 36. The first support seats 36 are arranged on the top of the second cross brace 12. The second short roller 32 is rotatably installed between the two first support seats 36. The second short roller 32 and the first short roller 31 are arranged in parallel, and the second short roller 32 is located in the idle space at the outlet end. The length of the second short roller 32 is greater than that of the first short roller 31. The first driving mechanism is in transmission connection with the second short roller 32. After the small packages are conveyed on the multiple first short rollers 31, they will be further conveyed by the second short roller 32 to ensure that the small packages can smoothly enter the subsequent conveying line.

[0037] The first driving mechanism includes a first electric roller mechanism 33. As Figure 3 、 Figure 4 shown, the first electric roller mechanism 33 includes a first electric roller 331, a first support 332, a first pressing plate 333, a guiding bolt 334, a first compression spring 335 and a first adjusting nut 336. The first electric roller 331 is rotatably installed on both sides of the first support 332. The first electric roller 331 contacts the first short roller 31 and / or the second short roller 32. The first pressing plate 333 is fixedly arranged on the top of the first support 332. Both sides of the first support 332 are respectively connected to the frame 1 through the guiding bolts 334. The first adjusting nut 336 is threadedly connected to the guiding bolt 334. The first compression spring 335 is wound around the guiding bolt 334. Both ends of the first compression spring 335 are respectively connected to the first adjusting nut 336 and the first support 332.

[0038] Specifically, the first electric roller 331 is located between two adjacent first short rollers 31, and the two adjacent first short rollers 31 are respectively in contact with the first electric roller 331. Both sides of the first support 332 are respectively connected to the middle cross brace 13, the first cross brace 11 or the second cross brace 12 through the guiding bolts 334; or the first electric roller 331 is located between the adjacent first short roller 31 and the second short roller 32, and the adjacent first short roller 31 and the second short roller 32 are respectively in contact with the first electric roller 331. Both sides of the first support 332 are respectively connected to the second cross brace 12 through the guiding bolts 334; by rotating the first electric roller 331, the first short roller 31 and / or the second short roller 32 in contact with the first electric roller 331 can be driven, and power transmission is realized through friction. Among them, as Figure 4As shown, the installation position of the first electric roller 331 on the first bracket 332 can be fixed by the first pressing plate 333. The first compression spring 335 provides a supporting force for the first bracket 332. By adjusting the installation position of the first adjusting nut 336 on the guiding bolt 334, the elastic force of the first compression spring 335 can be adjusted to ensure that the first electric roller 331 can provide effective power without excessive pressure causing failure. The setting of the first compression spring 335 enables the first electric roller mechanism 33 to have a certain self - adaptive adjustment range, which can improve the stability of conveying.

[0039] Embodiment Two

[0040] This embodiment is similar to Embodiment One. The difference lies in that the first driving mechanism includes a second electric roller mechanism 34. As Figure 3 、 Figure 5 shown, the second electric roller mechanism 34 includes a second bracket 342, a second pressing plate 343, a support 344, a second compression spring 345, a support bolt 346, a second adjusting nut 347 and at least two second electric rollers 341. The second electric rollers 341 are rotatably installed on both sides of the second bracket 342. The second electric rollers 341 contact the first short roller 31 and / or the second short roller 32. The second pressing plate 343 is fixedly arranged on the top of the second bracket 342. A first guide post is provided at the bottom of the second bracket 342. The first guide post passes through the support 344. The second compression spring 345 is wound around the first guide post, and both ends of the second compression spring 345 are respectively connected to the bracket and the support 344. The support 344 is arranged on the top of the frame 1. The support bolt 346 passes through the frame 1 and is threadedly connected to the second adjusting nut 347 and the support 344 in sequence. During implementation, the installation position of the second electric roller 341 on the second bracket 342 can be fixed by the second pressing plate 343. The second compression spring 345 provides a supporting force for the second bracket 342. By rotating the second adjusting nut 347, the support bolt 346 can move up and down to adjust the height of the support 344, and further adjust the elastic force of the second compression spring 345 to ensure that the second electric roller 341 can provide effective power without excessive pressure causing failure. The setting of the second compression spring 345 enables the second electric roller mechanism 34 to have a certain self - adaptive adjustment range, which can improve the stability of conveying.

[0041] Embodiment Three

[0042] This embodiment is similar to Embodiment One. The difference lies in that the first driving mechanism includes a third electric roller mechanism 35. As Figure 3 、 Figure 6As shown, the third electric roller mechanism 35 includes a third electric roller 351, a third bracket 352, a third pressure plate 353, a third compression spring 354, a guide seat 355 and an adjusting bolt 356. The third electric roller 351 is rotatably installed on both sides of the third bracket 352. The third electric roller 351 contacts the first short roller 31 and / or the second short roller 32. The third pressure plate 353 is fixedly installed on the top of the third bracket 352. A second guide column is provided at the bottom of the third bracket 352. The guide seat 355 is installed on the frame 1. The guide seat 355 is provided with a guide sleeve. The second guide column is passed through one end of the guide sleeve. The adjusting bolt 356 is installed at the other end of the guide sleeve. The two ends of the third compression spring 354 are respectively connected to the second guide column and the adjusting bolt 356. During implementation, the installation position of the third electric roller 351 on the third bracket 352 can be fixed by the third pressure plate 353, and the third compression spring 354 can provide supporting force for the second guide column and the second bracket 342 thereon. By adjusting the adjusting bolt 356, the connection depth between the adjusting bolt 356 and the guide sleeve can be changed, and then the elastic force of the third compression spring 354 can be adjusted to ensure that the third electric roller 351 can provide effective power without causing failure due to excessive pressure. The setting of the third compression spring 354 can make the third electric roller mechanism 35 have a certain adaptive adjustment range, which can improve the stability of transportation.

[0043] Embodiment 4

[0044] This embodiment is similar to the first embodiment, the second embodiment or the third embodiment, except that Figure 2 , Figure 3 As shown, the first conveying assembly 2 includes a second driving mechanism 24 and a plurality of first multi-V belt rollers 21 arranged in parallel, the first multi-V belt rollers 21 are rotatably installed between the outer plate 14 and the inner plate 15, the end of the first multi-V belt roller 21 close to the inner plate 15 is inclined toward the direction close to the inlet end, the second driving mechanism 24 is installed on the frame 1, and the plurality of first multi-V belt rollers 21 are respectively connected to the second driving mechanism 24 in transmission connection. During implementation, since the end of the first multi-V belt roller 21 close to the inner plate 15 is inclined toward the direction close to the inlet end, the conveying direction of the first multi-V belt roller 21 for the small package is inclined from the inlet end to the outlet end toward the direction close to the second conveying assembly 3, so that the small package is centered.

[0045] like Figure 7As shown, the second driving mechanism 24 includes a reduction motor 241, a multi-V belt pulley 242, a driving multi-V belt 243 and a transmission multi-V belt 244. The reduction motor 241 is installed on the frame 1. The output shaft of the reduction motor 241 is coaxially connected with the multi-V belt pulley 242. The multi-V belt pulley 242 is connected to one end of the first multi-V belt roller 21 through the driving multi-V belt 243. The adjacent first multi-V belt rollers 21 are connected by the transmission multi-V belt 244. The multi-V belt has the advantages of large load, low price, good transmission efficiency and low noise. During implementation, the multi-V belt pulley 242 is driven to rotate by the reduction motor 241, and then a first multi-V belt roller 21 is driven by the driving multi-V belt 243, and the transmission of multiple first multi-V belt rollers 21 is realized by the transmission multi-V belt 244.

[0046] Since the end of the first multi-V belt roller 21 close to the inner plate 15 is inclined toward the inlet end, there is an idle space between the first multi-V belt roller 21 far from the outlet end and the edge of the inlet end. When small packages enter the central conveying device, they may fall into the idle space and cannot be conveyed smoothly. Figure 2 , Figure 3 As shown, the first conveying assembly 2 also includes a second multi-V belt roller 22 and a second support seat 25. The second multi-V belt roller 22 is arranged parallel to the first multi-V belt roller 21 and is located at the entrance end. The second support seat 25 is arranged on the top of the first cross brace 11. The second multi-V belt roller 22 is rotatably installed between the outer plate 14 and the second support seat 25. The second multi-V belt roller 22 is connected to the first multi-V belt roller 21 through a transmission multi-V belt 244. During implementation, the first multi-V belt roller 21 drives the second multi-V belt roller 22 to rotate through the transmission multi-V belt 244, which can ensure that the small package can be transported after entering the conveying channel.

[0047] Since the end of the first multi-V belt roller 21 close to the inner plate 15 is inclined toward the inlet end, there is an idle space between the first multi-V belt roller 21 far from the inlet end and the edge of the outlet end. After being conveyed from the first multi-V belt rollers 21, the small package will fall into the idle space and cannot smoothly enter the subsequent conveying line. Figure 2 , Figure 3 As shown, the first conveying assembly 2 further includes a third driving mechanism, a third short roller 23 and a third support seat 26. The third short roller 23 is arranged parallel to the first multi-V belt roller 21 and is located at the outlet end. The third driving mechanism and the third support seat 26 are respectively arranged at the top of the second cross brace 12. The third short roller 23 is rotatably installed between the third support seat 26 and the inner side plate 15. The third driving mechanism is located below the third short roller 23, and the third driving mechanism is transmission-connected to the third short roller 23. During implementation, the third short roller 23 is independently driven to rotate by the third driving mechanism, which can further improve the conveying efficiency of small packages at the outlet end.

[0048] It should be noted that the third driving mechanism can be the first electric roller mechanism 33 of the first embodiment, the second electric roller mechanism 34 of the second embodiment, or the third electric roller mechanism 35 of the third embodiment, so as to ensure that effective power can be provided for the third short roller 23 without applying excessive pressure to the third short roller 23, resulting in failure. The third driving mechanism has a certain self-adaptive adjustment range, improving the conveying stability.

[0049] In the specific content of the above specific implementation manners, the technical features can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A central conveying device for small packages, comprising a frame (1) and two groups of first conveying components (2) respectively arranged on both sides of the top of the frame (1), wherein the transport routes of the two groups of first conveying components (2) form a "V" shape; characterized in that: A second conveying assembly (3) is also arranged on the top of the frame (1); two groups of the first conveying assemblies (2) are symmetrically arranged on both sides of the second conveying assembly (3) with respect to the second conveying assembly (3); the tops of the two groups of the first conveying assemblies (2) and the top of the second conveying assembly (3) form a conveying channel with a "V"-shaped cross section; the conveying channel is provided with an inlet end and an outlet end; the second conveying assembly (3) is used to convey small parcels from the inlet end to the outlet end in a horizontal direction; and the angle between the conveying direction of each group of the first conveying assemblies (2) and the conveying direction of the second conveying assembly (3) is equal.

2. The central conveying device for small packages according to claim 1, characterized in that: The top of the frame (1) is provided with a first cross brace (11) located at the inlet end and a second cross brace (12) located at the outlet end; both ends of the first cross brace (11) and both ends of the second cross brace (12) are respectively connected with outer side plates (14); the middle of the first cross brace (11) and the middle of the second cross brace (12) are connected with an intermediate cross brace (13) and two inner side plates (15); the two inner side plates (15) are located on both sides of the top of the intermediate cross brace (13); the two inner side plates (15) and the intermediate cross brace (13) form a space for installing the second conveying assembly (3); and a space for installing the first conveying assembly (2) is formed between the outer side plate (14) and the inner side plate (15) located on the same side of the intermediate cross brace (13).

3. The central conveying device for small packages according to claim 2, characterized in that: The second conveying assembly (3) comprises a first driving mechanism, a first short roller (31), a second short roller (32) and two first supporting seats (36); the plurality of short rollers are arranged in parallel from the inlet end to the outlet end; the second short roller (32) and the first short roller (31) are arranged in parallel, and the second short roller (32) is located at the outlet end; the first short roller (31) is rotatably mounted between the two inner side plates (15); the first supporting seat (36) is arranged on the top of the second cross brace (12); the second short roller (32) is rotatably mounted between the two first supporting seats (36); the first driving mechanism is mounted on the frame (1) and is located below the first short roller (31) and the second short roller (32); the first driving mechanism is respectively connected to the first short roller (31) and the second short roller (32); and the angles between the conveying directions of the two groups of the first conveying assemblies (2) and the central axis of the first short roller (31) are equal.

4. The central conveying device for small packages according to claim 3, characterized in that: The first driving mechanism comprises a first electric roller mechanism (33), the first electric roller mechanism (33) comprising a first electric roller (331), a first bracket (332), a first pressure plate (333), a guide bolt (334), a first compression spring (335) and a first adjusting nut (336); the first electric roller (331) is rotatably mounted on both sides of the first bracket (332); the first electric roller (331) contacts the first short roller (31) and / or the second short roller (32); the first pressure plate (333) is fixedly arranged on the top of the first bracket (332); both sides of the first bracket (332) are respectively connected to the frame (1) through the guide bolt (334); the first adjusting nut (336) is threadedly connected to the guide bolt (334); the first compression spring (335) is wound around the guide bolt (334); and both ends of the first compression spring (335) are respectively connected to the first adjusting nut (336) and the first bracket (332).

5. The central conveying device for small packages according to claim 3, characterized in that: The first driving mechanism comprises a second electric roller mechanism (34), the second electric roller mechanism (34) comprising a second bracket (342), a second pressure plate (343), a support (344), a second compression spring (345), a support bolt (346), a second adjustment nut (347) and at least two second electric rollers (341), the second electric rollers (341) being rotatably mounted on both sides of the second bracket (342), the second electric rollers (341) contacting the first short roller (31) and / or the second short roller (32), the second pressure plate (343) is fixedly arranged on the top of the second bracket (342), the bottom of the second bracket (342) is provided with a first guide column, the first guide column is passed through the support (344), the second compression spring (345) is wound around the first guide column, and the two ends of the second compression spring (345) are respectively connected to the bracket and the support (344), the support (344) is arranged on the top of the frame (1), and the support bolt (346) passes through the frame (1) and is threadedly connected to the second adjustment nut (347) and the support (344) in sequence.

6. The central conveying device for small packages according to claim 3, characterized in that: The first driving mechanism comprises a third electric roller mechanism (35), the third electric roller mechanism (35) comprising a third electric roller (351), a third bracket (352), a third pressure plate (353), a third compression spring (354), a guide seat (355) and an adjusting bolt (356); the third electric roller (351) is rotatably mounted on both sides of the third bracket (352); the third electric roller (351) contacts the first short roller (31) and / or the second short roller (32); the third pressure plate (353) is fixedly mounted on the top of the third bracket (352); a second guide column is provided at the bottom of the third bracket (352); the guide seat (355) is mounted on the frame (1); the guide seat (355) is provided with a guide sleeve; the second guide column is passed through one end of the guide sleeve; the adjusting bolt (356) is mounted on the other end of the guide sleeve; and the two ends of the third compression spring (354) are respectively connected to the second guide column and the adjusting bolt (356).

7. The central conveying device for small packages according to any one of claims 2 to 6, characterized in that: The first conveying assembly (2) comprises a second driving mechanism (24) and a plurality of first multi-V belt rollers (21) arranged in parallel, wherein the first multi-V belt rollers (21) are rotatably mounted between the outer plate (14) and the inner plate (15), and an end of the first multi-V belt roller (21) close to the inner plate (15) is inclined in a direction close to the inlet end, and the second driving mechanism (24) is mounted on the frame (1), and the plurality of first multi-V belt rollers (21) are respectively connected to the second driving mechanism (24) in driving connection.

8. The central conveying device for small packages according to claim 7, characterized in that: The second driving mechanism (24) comprises a reduction motor (241), a multi-V belt pulley (242), a driving multi-V belt (243) and a transmission multi-V belt (244); the reduction motor (241) is mounted on the frame (1); the output shaft of the reduction motor (241) is coaxially connected to the multi-V belt pulley (242); the multi-V belt pulley (242) is connected to one end of the first multi-V belt roller (21) via the driving multi-V belt (243); and adjacent first multi-V belt rollers (21) are transmission-connected via the transmission multi-V belt (244).

9. The central conveying device for small packages according to claim 8, characterized in that: The first conveying assembly (2) further comprises a second poly-V belt roller (22) and a second support seat (25); the second poly-V belt roller (22) is arranged parallel to the first poly-V belt roller (21) and is located at the inlet end; the second support seat (25) is arranged on the top of the first cross brace (11); the second poly-V belt roller (22) is rotatably mounted between the outer plate (14) and the second support seat (25); the second poly-V belt roller (22) is connected to the first poly-V belt roller (21) via the transmission poly-V belt (244).

10. The central conveying device for small packages according to claim 7, characterized in that: The first conveying assembly (2) further comprises a third driving mechanism, a third short roller (23) and a third supporting seat (26); the third short roller (23) is arranged parallel to the first multi-V belt roller (21) and is located at the outlet end; the third driving mechanism and the third supporting seat (26) are respectively arranged at the top of the second cross brace (12); the third short roller (23) is rotatably mounted between the third supporting seat (26) and the inner plate (15); the third driving mechanism is located below the third short roller (23); and the third driving mechanism is transmission-connected to the third short roller (23).

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