Express bidirectional conveying device with adjustable tensioning structure

Abstract

The utility model discloses an express two-way conveying device with an adjustable tensioning structure, which relates to the technical field of express two-way conveying devices and comprises a conveying mechanism used for a gap between conveying belts. The conveying assembly comprises a first power output device and a second power output device which are movably installed in the conveying frame, the surface of an output shaft of the first power output device is fixedly sleeved with a first large roller, and the surface of an output shaft of the second power output device is fixedly sleeved with a second large roller; the surface of the first large roller is sleeved with a first conveying belt. The tensioning assembly is arranged in the conveying frame, and the sizes of the first small roller and the second small roller are reduced, so that when the first conveying belt and the second conveying belt on the surfaces of the first small roller and the second small roller are in butt joint, a gap between the first conveying belt and the second conveying belt is reduced; and therefore, the situation that the express parcels fall off when the small express parcels are transported is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of express bidirectional conveying devices, in particular to an express bidirectional conveying device with an adjustable tensioning structure. Background Art

[0002] Express delivery devices are crucial equipment in the express logistics system, used to efficiently deliver express parcels in sorting centers, warehouses or transfer stations. These devices usually combine advanced mechanical, electronic and automation technologies to ensure that parcels can reach their destination accurately and quickly.

[0003] According to the patent name: A double-layer bidirectional conveying device dedicated to express logistics (patent publication number: CN217995662U, patent publication date: 2022-12-09), it includes a base and a first conveying mechanism, and a support block is welded and installed on the top of the base. The number of support blocks is four groups and they are arranged in a rectangular array, and a second conveying mechanism is welded and installed on the top of the support block. The first conveying mechanism is located directly above the second conveying mechanism and the first conveying mechanism is arranged in parallel with the second conveying mechanism. A spacing adjustment mechanism is arranged at the interval between the first conveying mechanism and the second conveying mechanism. The double-layer bidirectional conveying device dedicated to express logistics, by arranging the spacing adjustment mechanism at the interval between the first conveying mechanism and the second conveying mechanism, enables the device to adjust the distance between the first conveying mechanism and the second conveying mechanism according to the needs of the user when in use, thereby meeting the need for the device to adapt to the transportation of logistics items of different volumes. At the same time, universal wheels are added to the device, so that the device can be easy to move to meet the user's usage needs.

[0004] Based on the above-mentioned prior art, the existing express bidirectional conveying devices still have the following problems: the existing express bidirectional conveying devices generally adopt a double-layer conveyor belt design to achieve bidirectional transmission, but this method occupies too much space and is not efficient enough. In order to reduce the space occupation, some designs try to connect the two conveyor belts horizontally. Although it reduces the space occupation to a certain extent, the gap at the joint is large, which undoubtedly brings inconvenience to the smooth transportation of express items and may even cause the items to fall or get stuck during the transmission process, affecting the overall transportation efficiency. For this reason, the utility model provides an express bidirectional conveying device with an adjustable tensioning structure. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an express bidirectional conveying device with an adjustable tensioning structure, which solves the following problems existing in the existing express bidirectional conveying devices: the existing express bidirectional conveying devices generally adopt a double-layer conveyor belt design to achieve bidirectional transmission, but this method occupies too much space and is not efficient enough. In order to reduce the space occupancy, some designs attempt to connect the two conveyor belts horizontally. Although this reduces the space occupancy to a certain extent, the gap at the connection point is large, which undoubtedly brings inconvenience to the smooth transportation of express items and may even cause the items to fall or get stuck during the transmission process, affecting the overall transportation efficiency.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a two-way express delivery conveying device with an adjustable tensioning structure, including a conveying mechanism for the gap between conveyor belts, the conveying mechanism including:

[0007] Mounting components, including a conveyor frame;

[0008] The transmission assembly comprises a first power output device and a second power output device movably mounted inside a conveyor frame, wherein a first large roller is fixedly sleeved on the surface of an output shaft of the first power output device, a second large roller is fixedly sleeved on the surface of an output shaft of the second power output device, a first conveyor belt is sleeved on the surface of the first large roller, a second conveyor belt is sleeved on the surface of the second large roller, a first small roller is installed inside the first conveyor belt, and a second small roller is installed inside the second conveyor belt;

[0009] The tensioning assembly is arranged inside the conveying frame and is used for tensioning the first conveyor belt and the second conveyor belt.

[0010] Preferably, the front and rear plates of the conveying rack are each provided with two slide grooves which are bilaterally symmetrical.

[0011] Preferably, the tensioning assembly includes a mounting plate fixedly mounted on the bottom of the conveying frame, two mounting frames fixedly mounted on the bottom of the mounting plate, a rotating shaft is installed inside the mounting frame for rotation, a gear is fixedly sleeved on the middle outer ring of the rotating shaft, connecting rods are fixedly mounted on the front and rear ends of the rotating shaft, a tensioning roller is rotatably mounted on the inner side of the connecting rod through the rotating shaft, and an annular pressure sensor is fixedly mounted in the middle of the rotating shaft of the tensioning roller.

[0012] Preferably, the conveying mechanism also includes a motor mounting base fixedly installed on the bottom of the mounting plate, a lying motor is fixedly installed on the bottom of the motor mounting base, a motor shaft is rotatably installed on the output end of the lying motor, two worm gears are provided on the outer ring fixed sleeve of the motor shaft, a positioning frame is fixedly installed on the bottom of the mounting plate, and the motor shaft rotates through the interior of the positioning frame.

[0013] Preferably, the shaft inside the tensioning roller is adapted to slide inside the sliding groove.

[0014] Preferably, the worm is mounted in meshing engagement with a gear.

[0015] Preferably, the first large roller and the second large roller are respectively provided with limiting grooves which cooperate with the first conveyor belt and the second conveyor belt to prevent the first conveyor belt and the second conveyor belt from being displaced during movement.

[0016] The utility model provides a two-way express delivery conveying device with an adjustable tensioning structure. Compared with the prior art, it has the following beneficial effects:

[0017] (1) In the express bidirectional conveying device with an adjustable tensioning structure, the sizes of the first small roller and the second small roller are reduced, so that when the first conveyor belt and the second conveyor belt on the surfaces of the first small roller and the second small roller are connected, the gap between the first conveyor belt and the second conveyor belt is reduced, thereby avoiding the situation where the express parcels fall when transporting small express parcels.

[0018] (2) In the express bidirectional conveying device with an adjustable tensioning structure, the operation of the lying motor drives the motor shaft to rotate, and the motor shaft drives the two worms to rotate synchronously, and the two worms drive the two gears to rotate, and the thread directions of the two worms are opposite, thereby driving the two gears to rotate in opposite directions. At this time, the gears drive the rotating shaft to rotate, and the rotating shaft drives the tensioning roller to rotate in a circle with the rotating shaft as the axis through two connecting rods, so that the tensioning roller presses down on the inner and lower sides of the first conveyor belt and the second conveyor belt, thereby realizing the tensioning of the first conveyor belt and the second conveyor belt, so that the tension of the first conveyor belt and the second conveyor belt can be flexibly adjusted according to actual conditions, thereby ensuring the stable operation of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective structural diagram of the utility model;

[0020] Figure 2 It is a front sectional stereoscopic structural diagram of the utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the installation assembly of the utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the transmission component of the utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the tensioning assembly of the utility model;

[0024] Figure 6 It is a three-dimensional structural diagram of the electric component of the utility model.

[0025] In the figure: 1-conveying mechanism, 11-mounting component, 111-conveying frame, 112-chute, 12-conveying component, 121-first large roller, 122-first power output device, 123-first conveyor belt, 124-first small roller, 125-second large roller, 126-second power output device, 127-second conveyor belt, 128-second small roller, 13-tensioning component, 131-mounting plate, 132-mounting frame, 133-rotating shaft, 134-gear, 135-connecting rod, 136-tensioning roller, 137-annular pressure sensor, 14-electric component, 141-motor mounting seat, 142-lying motor, 143-motor shaft, 144-positioning frame, 145-worm. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 , the utility model provides a technical solution:

[0028] The express bidirectional conveying device with an adjustable tensioning structure comprises a conveying mechanism 1 for the gap between conveyor belts, wherein the conveying mechanism 1 comprises:

[0029] The installation assembly 11 includes a conveying frame 111;

[0030] The transmission assembly 12 includes a first power output device 122 and a second power output device 126 movably installed inside the conveyor frame 111. The first power output device 122 can use a servo motor of model EDSMT-2T110-020A, which is electrically connected to an external power supply and can be opened and closed by a person operating the control panel. The second power output device 126 can use a servo motor of model EDSMT-2T110-020A, which is electrically connected to an external power supply and can be opened and closed by a person operating the control panel. At the same time, in this application document, the first power output device 122 and the second power output device 126 are not limited to the servo motors recorded. As long as the power output device can be provided, it belongs to the protection scope of this patent. The first power output device 122 A first large roller 121 is fixedly sleeved on the surface of the output shaft, a second large roller 125 is fixedly sleeved on the surface of the output shaft of the second power output device 126, the surface of the first large roller 121 is sleeved with a first conveyor belt 123, the surface of the second large roller 125 is sleeved with a second conveyor belt 127, a first small roller 124 is installed inside the first conveyor belt 123, a second small roller 128 is installed inside the second conveyor belt 127, the sizes of the first small roller 124 and the second small roller 128 are reduced, so that when the first conveyor belt 123 and the second conveyor belt 127 on the surfaces of the first small roller 124 and the second small roller 128 are docked, the gap between the first conveyor belt 123 and the second conveyor belt 127 is reduced, thereby avoiding the situation where small express items fall when being transported.

[0031] Meanwhile, the first small roller 124 and the second small roller 128 may not be reduced in size, and a roller (which may be self-driven or undriven) may be arranged between the two non-reduced rollers as a second alternative technical solution.

[0032] At the same time, the first small roller 124 and the second small roller 128 do not need to be reduced in size, and a horizontal transition piece can be set between the two rollers (especially small express deliveries may still be stranded on the transition piece) as a third alternative technical solution.

[0033] The tensioning assembly 13 is disposed inside the conveying frame 111 and is used to tension the first conveyor belt 123 and the second conveyor belt 127 .

[0034] In this embodiment, two slide grooves 112 are provided on both the front and rear plates of the conveying frame 111 and are bilaterally symmetrical. The slide grooves 112 are arc-shaped and are used to limit the movement of the first small roller 124 and the second small roller 128 .

[0035] In this embodiment, the tensioning assembly 13 includes a mounting plate 131 fixedly installed at the bottom of the conveying frame 111, and two mounting frames 132 are fixedly installed at the bottom of the mounting plate 131. A rotating shaft 133 is installed inside the mounting frame 132 for rotation. A gear 134 is fixedly sleeved on the middle outer ring of the rotating shaft 133. A connecting rod 135 is fixedly installed at the front and rear ends of the rotating shaft 133. A tensioning roller 136 is rotatably installed on the inner side of the connecting rod 135 through the rotating shaft, and an annular pressure sensor 137 is fixedly installed in the middle of the rotating shaft of the tensioning roller 136. The shaft inside the tensioning roller 136 slides in the sliding groove 112.

[0036] The rotating shaft in the middle of the tensioning roller 136 is fixedly connected between the two connecting rods 135, and the tensioning roller 136 rotates on the outer ring of the rotating shaft, and the annular pressure sensor 137 is fixedly installed in the middle of the outer ring of the rotating shaft, and the annular pressure sensor 137 is installed in the middle of the tensioning roller 136 and is rotatably connected thereto. When the pressure sensor return value is greater than or less than the set range, the lying motor 142 automatically rotates forward or reverse to ensure that the belt is appropriately tightened. The model of the annular pressure sensor 137 is TH2ID.

[0037] The two worm gears 145 with opposite thread directions drive the two gears 134 to rotate in opposite directions. At this time, the gear 134 drives the rotating shaft 133 to rotate. The rotating shaft 133 drives the tensioning roller 136 to rotate in a circle around the rotating shaft 133 through two connecting rods 135, so that the tensioning roller 136 presses down on the inner and lower sides of the first conveyor belt 123 and the second conveyor belt 127, thereby achieving the tensioning of the first conveyor belt 123 and the second conveyor belt 127, so that the tensioning degree of the first conveyor belt 123 and the second conveyor belt 127 can be flexibly adjusted according to actual conditions, thereby ensuring the stable operation of the conveyor belt.

[0038] In this embodiment, the conveying mechanism 1 also includes a motor mounting base 141 fixedly mounted on the bottom of the mounting plate 131, and a lying motor 142 is fixedly mounted on the bottom of the motor mounting base 141. The lying motor 142 is a three-phase asynchronous motor, which is electrically connected to an external power supply and is opened and closed by a person operating the control panel. A motor shaft 143 is rotatably mounted on the output end of the lying motor 142, and two worms 145 are fixedly sleeved on the outer ring of the motor shaft 143. A positioning frame 144 is fixedly mounted on the bottom of the mounting plate 131, and the motor shaft 143 rotates and penetrates the interior of the positioning frame 144. The worm 145 is meshed with the gear 134. The operation of the lying motor 142 drives the motor shaft 143 to rotate, and the motor shaft 143 drives the two worms 145 to rotate synchronously. The two worms 145 drive the two gears 134 to rotate, and the thread directions of the two worms 145 are opposite, and the two worms 145 are respectively meshed with the two gears 134.

[0039] In this embodiment, the first large roller 121 and the second large roller 125 are respectively provided with limiting grooves that cooperate with the first conveyor belt 123 and the second conveyor belt 127 to effectively prevent the first conveyor belt 123 and the second conveyor belt 127 from being displaced during movement and affecting the express delivery path.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0041] When working, the user first connects the device to an external power source, and then the lying motor 142 runs to drive the motor shaft 143 to rotate, and the motor shaft 143 drives the two worms 145 to rotate synchronously, and the two worms 145 drive the two gears 134 to rotate, and the thread directions of the two worms 145 are opposite, thereby driving the two gears 134 to rotate in the opposite direction. At this time, the gear 134 drives the rotating shaft 133 to rotate, and the rotating shaft 133 drives the tensioning roller 136 to rotate around the rotating shaft 133 through the two connecting rods 135, so that the tensioning roller 136 can tighten the first conveyor belt 123 and the second conveyor belt 123. The inner lower side of the second conveyor belt 127 is pressed downward, and during the pressing process, the annular pressure sensor 137 contacts the conveyor belt. The pressure sensor return value is greater than or less than the set range, and the horizontal motor 142 automatically runs forward or reverse to ensure that the belt is moderately tightened, thereby achieving tensioning of the first conveyor belt 123 and the second conveyor belt 127. At this time, the first power output device 122 and the second power output device 126 are running, and the first conveyor belt 123 is driven to be transported to the left or right through the first large roller 121 and the first small roller 124 and the second large roller 125 and the second small roller 128.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-way express delivery conveyor with an adjustable tensioning structure, characterized in that: The invention comprises a conveying mechanism (1) for conveying the gaps between the belts, wherein the conveying mechanism (1) comprises: A mounting assembly (11), comprising a conveying frame (111); A transmission assembly (12), comprising a first power output device (122) and a second power output device (126) movably mounted inside a conveyor frame (111); a first large roller (121) is fixedly sleeved on the surface of an output shaft of the first power output device (122); a second large roller (125) is fixedly sleeved on the surface of an output shaft of the second power output device (126); a first conveyor belt (123) is sleeved on the surface of the first large roller (121); a second conveyor belt (127) is sleeved on the surface of the second large roller (125); a first small roller (124) is mounted inside the first conveyor belt (123); and a second small roller (128) is mounted inside the second conveyor belt (127); The tensioning assembly (13) is arranged inside the conveying frame (111) and is used to tension the first conveyor belt (123) and the second conveyor belt (127).

2. The express bidirectional conveying device with an adjustable tensioning structure according to claim 1 is characterized in that: The front and rear plates of the conveying frame (111) are each provided with two slide grooves (112) which are bilaterally symmetrical.

3. The express bidirectional conveying device with an adjustable tensioning structure according to claim 1 is characterized in that: The tensioning assembly (13) comprises a mounting plate (131) fixedly mounted on the bottom of the conveying frame (111), two mounting frames (132) fixedly mounted on the bottom of the mounting plate (131), a rotating shaft (133) rotatably penetrated inside the mounting frame (132), a gear (134) is fixedly sleeved on the middle outer ring of the rotating shaft (133), connecting rods (135) are fixedly mounted on the front and rear ends of the rotating shaft (133), a tensioning roller (136) is rotatably mounted on the inner side of the connecting rod (135) via a rotating shaft, and an annular pressure sensor (137) is fixedly mounted in the middle of the rotating shaft of the tensioning roller (136).

4. The express bidirectional conveying device with an adjustable tensioning structure according to claim 3 is characterized in that: The conveying mechanism (1) further comprises a motor mounting seat (141) fixedly mounted on the bottom of the mounting plate (131); a lying motor (142) is fixedly mounted on the bottom of the motor mounting seat (141); a motor shaft (143) is rotatably mounted on the output end of the lying motor (142); two worms (145) are fixedly sleeved on the outer ring of the motor shaft (143); a positioning frame (144) is fixedly mounted on the bottom of the mounting plate (131), and the motor shaft (143) rotatably passes through the interior of the positioning frame (144).

5. The express bidirectional conveying device with an adjustable tensioning structure according to claim 3 is characterized in that: The shaft inside the tensioning roller (136) is adapted to slide inside the sliding groove (112).

6. The express bidirectional conveying device with an adjustable tensioning structure according to claim 4 is characterized in that: The worm (145) is meshed with the gear (134).

7. The express bidirectional conveying device with an adjustable tensioning structure according to claim 1, characterized in that: The first large roller (121) and the second large roller (125) are respectively provided with limiting grooves for cooperating with the first conveyor belt (123) and the second conveyor belt (127) to prevent the first conveyor belt (123) and the second conveyor belt (127) from being displaced during movement.

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