Conveyor device with adjustable belt tension and weight selector

Abstract

The application discloses a conveying device with adjustable conveying belt tightness and a weight sorting machine. The conveying device with adjustable conveying belt tightness comprises a mounting body, an adjusting assembly and a conveying assembly. The mounting body comprises a supporting plate. The adjusting assembly comprises two first connecting blocks and two adjusting units. The two first connecting blocks are slidably mounted on opposite sides of the supporting plate. The conveying assembly comprises a driving shaft, a driven shaft, a driving unit and a conveying belt. The conveying belt is arranged around the supporting plate. The supporting plate is arranged between the driving shaft and the driven shaft. The driving shaft and the driven shaft are rotatably abutted to the conveying belt to tension the conveying belt. The driven shaft is simultaneously abutted to the two first connecting blocks. The driving unit is used to drive the driving shaft to rotate, so that the conveying belt is used for conveying operation. When the two adjusting units respectively drive the two first connecting blocks to move, the distance between the driving shaft and the driven shaft is adjusted, so that the tightness of the conveying belt is adjusted.

Description

Technical Field

[0001] This application relates to the field of material handling technology, specifically to a conveying device with adjustable conveyor belt tension and a weight sorting machine. Background Technology

[0002] Weight sorting machines are commonly used in the food, pharmaceutical, and daily chemical industries for product packaging weighing. These machines use a belt conveyor to transport the products to be weighed to the weighing sensor for weighing and detection. After the detection is completed, the products are then classified by weight.

[0003] However, after long-term use, the belt of the belt conveyor component of the weight sorting machine will gradually become loose. This may cause the belt to slip and spin freely due to insufficient friction. Once the belt slips and spins freely, it is very likely that the product will be difficult to be conveyed to the checkweighing position, affecting the subsequent weighing and inspection operations. Utility Model Content

[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a conveying device with adjustable conveyor belt tension, wherein the adjustable conveyor belt tension conveying device comprises:

[0005] The mounting body includes a support plate;

[0006] A conveying assembly includes a drive shaft, a driven shaft, a drive unit, and a conveyor belt. The conveyor belt is arranged around a pallet. Along the conveying direction of the conveyor belt, the pallet forms a first end and a second end. The drive shaft is rotatably mounted on the first end, and the driven shaft is rotatably mounted on the second end. The drive shaft and the driven shaft respectively abut against the conveyor belt to tension the conveyor belt. The drive shaft is also connected to the drive unit, and the drive unit is used to drive the drive shaft to rotate so that the conveyor belt is rotated for conveying operations.

[0007] An adjustment assembly includes two first connecting blocks and two adjustment units. The two first connecting blocks are slidably mounted on opposite sides of the second end of the tray. The two adjustment units are mounted on opposite sides of the second end of the tray to drive the two first connecting blocks to move respectively. The driven shaft is rotatably mounted on the ends of the two first connecting blocks away from their respective adjustment units, and the ends of the two first connecting blocks away from their respective adjustment units abut against the driven shaft.

[0008] When the two adjustment units drive the two first connecting blocks to move respectively, the distance between the driven shaft and the driving shaft is adjusted so that the tension of the conveyor belt is adjusted.

[0009] According to one embodiment of this application, the adjustment unit further includes two second connecting blocks, which are installed on opposite sides of the first end of the tray, and the drive shaft is rotatably installed on one end of the two second connecting blocks simultaneously, with one end of each of the two second connecting blocks abutting against the drive shaft.

[0010] According to one embodiment of this application, each of the adjustment units includes an abutment and a connector, one abutment being movably connected to one connector, and each abutment being configured to move closer to and further away from a corresponding first connecting block, and two connectors being respectively connected to opposite sides of the tray for mounting the two first connecting blocks.

[0011] According to one embodiment of this application, each of the first connecting blocks forms at least one protrusion on the side facing the tray, and the tray forms at least one groove on each of the opposite sides facing the two first connecting blocks. The extending direction of each groove is parallel to the moving direction of the driven shaft. Thus, when the two first connecting blocks are driven by the two adjusting units respectively, each protrusion is configured to be movable in one of the grooves.

[0012] According to one embodiment of this application, the adjustment assembly further includes a pair of first mounting members and a pair of second mounting members, and the two first connecting blocks are respectively mounted on opposite sides of the tray through one of the first mounting members, and the two second connecting blocks are respectively mounted on opposite sides of the tray through one of the second mounting members. The tray also forms at least one fixing hole on each of the opposite sides for mounting the two second connecting blocks, and each second connecting block forms at least one protrusion on the side facing the tray, and one of the protrusions is correspondingly mounted in one of the fixing holes.

[0013] According to one embodiment of this application, the conveying assembly further includes two first bearings and two second bearings, and the two ends of the driven shaft are respectively connected to the inner rings of the two first bearings. Each first connecting block has a first arc-shaped notch at its other end away from the adjusting unit, and the size of each first notch is adapted to the outer ring size of a first bearing for assembly of a first bearing. The two ends of the drive shaft are respectively connected to the inner rings of the two second bearings, and the other end of each second connecting block has a second arc-shaped notch at its other end away from its respective protrusion, and the size of each second notch is adapted to the outer ring size of a second bearing for assembly of a second bearing.

[0014] According to one embodiment of this application, the adjusting assembly further includes two first limiting blocks and two second limiting blocks, wherein the two first limiting blocks are detachably connected to the two first connecting blocks respectively, and the two first bearings are held between the two first limiting blocks, and the other end of each first limiting block away from the corresponding first connecting block is configured to abut against a first bearing, and the two second limiting blocks are detachably connected to the two second connecting blocks respectively, and the two second bearings are held between the two second limiting blocks, and the other end of each second limiting block away from the corresponding second connecting block is configured to abut against a second bearing.

[0015] According to one embodiment of this application, each of the first limiting blocks forms a first window extending through its opposite sides at one end away from the corresponding first connecting block, and the two ends of the driven shaft extend through the two first limiting blocks through the two first windows respectively. Each of the second limiting blocks forms a second window extending through its opposite sides at one end away from the corresponding second connecting block, and the two ends of the driving shaft extend through the two second limiting blocks through the two second windows respectively.

[0016] According to one embodiment of this application, the mounting body further includes a base, the base having two vertical walls and a horizontal wall, the two vertical walls being connected to opposite ends of the horizontal wall, and both vertical walls being arranged to extend in a vertically upward direction to form a groove in the base, the support plate being disposed on the top of the base and spanning the groove and mounted with the two vertical walls.

[0017] To solve the above-mentioned technical problems and achieve at least one advantage of this application, this application provides a weight sorting machine, wherein the weight sorting machine includes the above-described adjustable conveyor belt tension conveying device. Attached Figure Description

[0018] Figure 1 A perspective view of the conveying device with adjustable conveyor belt tension described in this application is shown.

[0019] Figure 2 for Figure 1 An enlarged view of point A in the adjustable conveyor belt tension conveyor device shown.

[0020] Figure 3 A schematic diagram of the base of the conveying device with adjustable conveyor belt tension described in this application is shown.

[0021] Figure 4 A schematic diagram of the pallet of the adjustable conveyor belt tension conveying device described in this application is shown.

[0022] Figure 5 A partial structural schematic diagram of the adjusting component of the adjustable conveyor belt tension conveying device described in this application is shown. Detailed Implementation

[0023] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0024] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0025] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0026] refer to Figures 1 to 5 The adjustable conveyor belt tension conveying device according to a preferred embodiment of the present application will be described in detail below. The adjustable conveyor belt tension conveying device includes a mounting body 10, an adjusting component 20 and a conveying component 30.

[0027] Specifically, the mounting body 10 includes a tray 11.

[0028] The conveying assembly 30 includes a drive shaft 31, a driven shaft 32, a drive unit 33, and a conveyor belt 34. The conveyor belt 34 is arranged around the pallet 11, and the pallet 11 forms a first end 111 and a second end 112 along the conveying direction of the conveyor belt 34. The drive shaft 31 is rotatably mounted on the first end 111. The driven shaft 32 is rotatably mounted on the second end 112. The drive shaft 31 and the driven shaft 32 respectively abut against the conveyor belt 34 to tension the conveyor belt 34. Furthermore, the drive shaft 31 is also connected to the drive unit 33, and the drive unit 33 is used to drive the drive shaft 31 to rotate so that the conveyor belt 34 is rotated for conveying operation. That is, the rotating conveyor belt 34 can convey an object from the first end 111 of the pallet 11 to the second end 112 of the pallet 11, or the rotating conveyor belt 34 can convey an object from the second end 112 of the pallet 11 to the first end 111 of the pallet 11.

[0029] The adjustment assembly 20 includes two first connecting blocks 21, two second connecting blocks 22, and two adjustment units 23. The two first connecting blocks 21 are slidably mounted on opposite sides of the second end 112 of the tray 11. The two adjustment units 23 are mounted on opposite sides of the second end 112 of the tray 11 to drive the two first connecting blocks 21 to move respectively. The driven shaft 32 is rotatably mounted on one end of each of the two first connecting blocks 21 away from their respective adjustment units 23, and the ends of the two first connecting blocks 21 away from their respective adjustment units 23 abut against the driven shaft 32. The two second connecting blocks 22 are mounted on opposite sides of the first end 111 of the tray 11, and the drive shaft 31 is rotatably mounted on one end of each of the two second connecting blocks 22, and one end of each of the two second connecting blocks 22 abuts against the drive shaft 31.

[0030] Those skilled in the art will understand that by driving the first connecting block 21 to move through the adjustment unit 23, the distance between the corresponding first connecting block 21 and the second connecting block 22 is adjusted synchronously, thereby adjusting the distance between the driven shaft 32 and the drive shaft 31. Thus, when the conveyor belt 34 becomes slack, the two adjustment units 23 respectively drive the two first connecting blocks 21 to move, so that each first connecting block 21 moves away from its corresponding second connecting block 22, causing the driven shaft 32 to be driven away from the drive shaft 31 synchronously. At this time, the slack conveyor belt 34 will gradually return to a taut state as the distance between the drive shaft 31 and the driven shaft 32 increases.

[0031] It is worth mentioning that the driven shaft 32 maintains a predetermined distance from the pallet 11. When the driven shaft 32 moves away from the driving shaft 31, the distance between the driven shaft 32 and the pallet 11 increases, while when the driven shaft 32 moves closer to the driving shaft 31, the distance between the driven shaft 32 and the pallet 11 decreases.

[0032] In this way, when the drive unit 33 drives the drive shaft 31, the conveyor belt 34, which has returned to a taut state, can be stably driven to rotate, so as to avoid slippage and idle spinning, thereby stably conveying the object to the predetermined position.

[0033] Preferably, such as Figure 5 As shown, each of the first connecting blocks 21 forms at least one protrusion 211 on the side facing the tray 11, and the tray 11 forms at least one groove 1101 on each of the opposite sides facing the two first connecting blocks 21. The extending direction of each groove 1101 is parallel to the moving direction of the driven shaft 32. Thus, when the two first connecting blocks 21 are driven by the two adjusting units 23 respectively, each protrusion 211 is configured to move in one of the grooves 1101, so that the driven shaft 32 moves closer to and away from the driving shaft 31.

[0034] It is worth mentioning that, as a variation, each of the first connecting blocks 21 has at least one through groove on the side facing the support plate 11, and the extending direction of each through groove is parallel to the moving direction of the driven shaft 32. The support plate 11 has at least one protruding edge on each of the opposite sides facing the two first connecting blocks 21, so that when the two first connecting blocks 21 are respectively driven by the two adjusting units 23, each protruding edge is configured to be movable in one of the through grooves, so that the driven shaft 32 moves closer to and away from the driving shaft 31.

[0035] Furthermore, the adjustment assembly 20 also includes a pair of first mounting members 24, and the two first connecting blocks 21 are respectively mounted on opposite sides of the tray 11 through one of the first mounting members 24.

[0036] Preferably, each of the first mounting members 24 has a blocking portion and an insertion portion connected to the blocking portion, wherein the cross-sectional diameter of the blocking portion is larger than the cross-sectional diameter of the insertion portion. Each of the first connecting blocks 21 also forms a mounting slot 2101 extending through its center, and the extending direction of each mounting slot 2101 is parallel to the moving direction of the driven shaft 32. The tray 11 also has a first connecting hole 1102 on each of the opposite sides for mounting the two first connecting blocks 21, and each first connecting hole 1102 is aligned with one of the mounting slots 2101. The insertion portion of each of the first mounting members 24 extends through one of the mounting slots 2101, passes through one of the first connecting blocks 21, and is connected to one of the first connecting holes 1102 of the tray 11.

[0037] Understandably, the diameter of the blocking portion of each first mounting member 24 is larger than the size of the mounting slot 2101 to prevent the first connecting block 21 from detaching from the support plate 11. Furthermore, when the two adjusting units 23 respectively move the two first connecting blocks 21, each first connecting block 21 moves relative to one of the first mounting members 24 through its respective mounting slot 2101. Preferably, each first mounting member 24 is configured as a T-shaped bolt, and each first connecting hole 1102 is configured as a threaded hole, so that each first mounting member 24 is connected to the support plate 11 by a threaded connection.

[0038] Furthermore, the adjustment assembly 20 also includes a pair of second mounting members 25, and the two second connecting blocks 22 are respectively mounted on opposite sides of the tray 11 via one of the second mounting members 25.

[0039] Preferably, each of the second mounting members 25 has a blocking portion and a connecting portion connected to the blocking portion, wherein the cross-sectional diameter of the blocking portion is larger than the cross-sectional diameter of the connecting portion. Each of the second connecting blocks 22 has a through hole 2201 extending through its center for the connecting portion of one of the second mounting members 25 to pass through. The tray 11 also has a second connecting hole 1103 on each of the opposite sides for mounting the two second connecting blocks 22, and each second connecting hole 1103 is aligned with one of the through holes 2201. The connecting portion of each of the second mounting members 25 extends through one of the through holes 2201 and passes through one of the second connecting blocks 22, and is connected to one of the second connecting holes 1103 of the tray 11.

[0040] More preferably, such as Figure 4 As shown, the tray 11 also has at least one fixing hole 1104 formed on each of the opposite sides for mounting the two second connecting blocks 22. Correspondingly, each second connecting block 22 has at least one protrusion 221 on the side facing the tray 11, and one protrusion 221 is correspondingly mounted in one of the fixing holes 1104. Thus, the two second connecting blocks 22 are respectively mounted on opposite sides of the tray 11 through their respective protrusions 221, thereby making the two second connecting blocks 22 stably mounted on opposite sides of the tray 11.

[0041] It is worth mentioning that, as an alternative, the tray 11 also has at least one protrusion formed on each of the opposite sides for mounting the two second connecting blocks 22. Correspondingly, each second connecting block 22 has at least one fixing slot formed on the side facing the tray 11, and one of the protrusions is correspondingly mounted in one of the fixing slots, so that the two second connecting blocks 22 can also be stably mounted on the opposite sides of the tray 11.

[0042] In one embodiment, such as Figure 2 As shown, each of the adjustment units 23 includes an abutment 231 and a connector 232, wherein one of the abutments 231 is movably connected to one of the connectors 232, and each of the abutments 231 is configured to move closer to and further away from a corresponding first connecting block 21. The two connectors 232 are respectively connected to opposite sides of the tray 11 for mounting the two first connecting blocks 21.

[0043] It should be noted that when each of the abutting members 231 moves closer to a corresponding first connecting block 21, the corresponding first connecting block 21 is gradually pushed. Thus, when both first connecting blocks 21 are pushed, the driven shaft 32 is pushed away from the driving shaft 31, and the tension of the conveyor belt 34 is adjusted. Furthermore, when the conveyor belt 34 needs to be replaced, the two abutting members 231 move relative to their respective connecting members 232 and no longer abut against the two first connecting blocks 21. In this case, the tension of the conveyor belt 34 can be released by moving the two first connecting blocks 21 along the moving directions of the two abutting members 231, thereby facilitating replacement.

[0044] Preferably, both abutment members 231 are configured as bolts, and both connectors 232 are configured as nuts with a predetermined length of inner hole, that is, one abutment member 231 is connected to one connector 232 by means of a threaded connection.

[0045] Preferably, the conveying assembly 30 further includes two first bearings 35, and the two ends of the driven shaft 32 are respectively connected to the inner rings of the two first bearings 35. Correspondingly, each first connecting block 21 has a nearly arc-shaped first notch 2102 formed at its other end away from the adjusting unit 23, and the size of each first notch 2102 is adapted to the outer ring size of one first bearing 35 for assembly. That is, the two first bearings 35 are respectively assembled into the two first notches 2102 of the two first connecting blocks 21, i.e., the driven shaft 32 is rotatably mounted to the two first connecting blocks 21 via the two first bearings 35.

[0046] Similarly, the conveying assembly 30 also includes two second bearings 36, and the two ends of the drive shaft 31 are respectively connected to the inner rings of the two second bearings 36. Correspondingly, each second connecting block 22 has a nearly arc-shaped second notch 2202 formed at its other end away from its respective protrusion 221, and the size of each second notch 2202 is adapted to the outer ring size of a second bearing 36 for mounting a second bearing 36. That is, the two second bearings 36 are respectively mounted in the two second notches 2202 of the two second connecting blocks 22, that is, the drive shaft 31 is rotatably mounted to the two second connecting blocks 22 via the two second bearings 36.

[0047] It should be noted that when the two first connecting blocks 21 are driven by the two adjusting units 23 to move the driven shaft 32 away from the driving shaft 31, the conveyor belt 34 is gradually tightened. At this time, since each of the first notches 2102 and each of the second notches 2202 tends to be arc-shaped, the driving shaft 31 and the driven shaft 32 are stably positioned. In this way, not only can the driving shaft 31 be prevented from floating in a direction perpendicular to its own axis, but the driven shaft 32 can also be prevented from floating in a direction perpendicular to its own axis.

[0048] Furthermore, the adjusting assembly 20 also includes two first limiting blocks 26, which are detachably connected to the two first connecting blocks 21 respectively. The two first bearings 35 are held between the two first limiting blocks 26, and the other end of each first limiting block 26, away from its corresponding first connecting block 21, is configured to abut against one of the first bearings 35. Thus, by having the two first limiting blocks 26 abut against the two first bearings 35 on the driven shaft 32 respectively, the driven shaft 32 is prevented from floating in a direction parallel to its own axial direction.

[0049] More preferably, each of the first limiting blocks 26 forms a first window 2601 extending through its opposite sides at one end away from the corresponding first connecting block 21, and the two ends of the driven shaft 32 extend through the two first limiting blocks 26 from the two first windows 2601 respectively.

[0050] It should be noted that the size of both first windows 2601 is larger than the size of the two ends of the driven shaft 32. Therefore, when the driven shaft 32 is driven to rotate, the resistance encountered by the two ends of the driven shaft 32 when rotating is reduced because the two ends of the driven shaft 32 pass through the two first windows 2601 of the two first limiting blocks 26 respectively. Furthermore, when the conveyor belt 34 begins to loosen, the restraining effect of the conveyor belt 34 on the driven shaft 32 weakens, and it begins to loosen relative to the two first connecting blocks 21. At this time, due to the restriction of the first windows 2601 of the two first limiting blocks 26, the loosening range of the driven shaft 32 is limited, so that the subsequent adjustment unit 23 can directly perform adjustment operations.

[0051] Furthermore, the adjustment assembly 20 also includes two second limiting blocks 27, which are detachably connected to the two second connecting blocks 22 respectively. The two second bearings 36 are held between the two second limiting blocks 27, and the other end of each second limiting block 27, away from its corresponding second connecting block 22, is configured to abut against one of the second bearings 36. Thus, by having the two second limiting blocks 27 abut against the two second bearings 36 on the drive shaft 31 respectively, the drive shaft 31 is prevented from floating in a direction parallel to its own axial direction.

[0052] More preferably, each of the second limiting blocks 27 forms a second window 2701 extending through its opposite sides at one end away from the corresponding second connecting block 22, and the two ends of the drive shaft 31 extend through the two second limiting blocks 27 from the two second windows 2701 respectively.

[0053] It should be noted that the size of both second windows 2701 is larger than the size of the two ends of the drive shaft 31. Therefore, when the drive shaft 31 is driven to rotate, the resistance encountered by the two ends of the drive shaft 31 during rotation is reduced because the two ends of the drive shaft 31 pass through the two second windows 2701 of the two second limiting blocks 27, respectively. Furthermore, when the conveyor belt 34 begins to loosen, the limiting effect of the conveyor belt 34 on the drive shaft 31 weakens, and it begins to loosen relative to the second connecting block 22. At this time, due to the restriction of the second windows 2701 of the two second limiting blocks 27, the loosening range of the drive shaft 31 is limited, facilitating subsequent adjustment operations by the adjustment unit 23.

[0054] Furthermore, the drive unit 33 includes a drive member 331 and a transmission member 332, wherein the transmission member 332 is drivably connected to the drive member 331, and the transmission member 332 drives the drive shaft 31 to rotate by the drive member 331, thereby driving the conveyor belt 34 to rotate for conveying objects.

[0055] In one example, such as Figure 1As shown, the transmission component 332 includes a driving member 3321, a driven member 3322, and a transmission member 3323, wherein the driving member 3321 is synchronously rotatably connected to the driving member 331. The driven member 3322 is connected to the outer periphery of the drive shaft 31. The transmission member 3323 is rotatably mounted on both the driving member 3321 and the driven member 3322 in a surrounding manner, and when the driving member 331 rotates the driving member 3321, the transmission member 3323 is driven to rotate and thus drives the driven member 3322 to rotate, thereby causing the drive shaft 31 to rotate, and thus driving the conveyor belt 34 to rotate.

[0056] Preferably, the drive element 331 is implemented to include a drive motor.

[0057] Preferably, the transmission component 3323 is configured as a synchronous belt, and both the driving component 3321 and the driven component 3322 are configured as synchronous pulleys.

[0058] Preferably, the mounting body 10 further includes a base 12. As a preferred embodiment, such as... Figure 1 and Figure 3 As shown, the base 12 has two vertical walls 121 and one horizontal wall 122. The two vertical walls 121 are respectively connected to opposite ends of the horizontal wall 122, and both vertical walls 121 are arranged to extend vertically upward, forming a groove 1201 in the base 12, i.e., the base 12 tends to be U-shaped. The support plate 11 is disposed on the top of the base 12 and spans the groove 1201 and is installed with the two vertical walls 121. The drive member 331 is movably mounted on the base 12 and located in the groove 1201 of the base 12. That is, when the transmission member 3323 is set as a synchronous belt, the tension of the transmission member 3323 can be adjusted by moving the drive member 331, thereby stably driving the drive shaft 31 to rotate.

[0059] As a preferred option, such as Figure 1 and Figure 3 As shown, the base 12 also forms at least one moving groove 1202, and the extending directions of at least one moving groove 1202 are parallel, and at least one moving groove 1202 is disposed on the same vertical wall 121 to limit the moving direction of the drive member 331.

[0060] Preferably, the base 12 forms at least one positioning portion 123 on the top of each of the two vertical walls 121 facing the tray 11, for positioning the tray 11. Correspondingly, the tray 11 forms the same number of positioning holes 1105 as the positioning portions 123 on one side facing both vertical walls 121, and each positioning hole 1105 is configured to fit the size of one positioning portion 123. In this way, the tray 11 mounted on the base 12 is restricted and difficult to shift in the horizontal direction.

[0061] It is worth mentioning that, as a variation, at least one of the positioning parts 123 is formed by the tray 11 toward the two vertical walls 121, and at least one of the positioning holes 1105 is formed by the base 12 at the top of the two vertical walls 121 toward the tray 11. In this way, the tray 11 mounted on the base 12 is still restricted and difficult to shift in the horizontal direction.

[0062] In addition, the adjustable conveyor belt tension conveying device also includes two locking members 40, wherein the locking members 40 are configured to simultaneously lock the pallet 11 and the base 12, thereby preventing the pallet 11 from separating from the base 12 in the vertical direction.

[0063] As an example, both locking components 40 are configured as latches, and the two latches are located on opposite sides of the mounting body 10. Each latch includes a latch seat and a latching ring. The latch seat of each latch is mounted on one side of the support plate 11, and the latching ring of each latch is mounted on one of the vertical walls 121 of the base 12, located outside the groove 1201, and adjacent to one of the latch seats. It is understood that an operator can flip each latching ring towards a latch seat until both latching rings are connected to their respective latch seats by a snap-fit ​​mechanism. At this point, the support plate 11 and the base 12 are stably locked, thus preventing them from separating.

[0064] This application provides a weight sorting machine, wherein the weight sorting machine includes the aforementioned adjustable conveyor belt tension conveying device.

[0065] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A conveying device with adjustable conveyor belt tension, characterized in that, The adjustable conveyor belt tension conveying device includes: The mounting body includes a support plate; A conveying assembly includes a drive shaft, a driven shaft, a drive unit, and a conveyor belt. The conveyor belt is arranged around a pallet. Along the conveying direction of the conveyor belt, the pallet forms a first end and a second end. The drive shaft is rotatably mounted on the first end, and the driven shaft is rotatably mounted on the second end. The drive shaft and the driven shaft respectively abut against the conveyor belt to tension the conveyor belt. The drive shaft is also connected to the drive unit, and the drive unit is used to drive the drive shaft to rotate so that the conveyor belt is rotated for conveying operations. An adjustment assembly includes two first connecting blocks and two adjustment units. The two first connecting blocks are slidably mounted on opposite sides of the second end of the tray. The two adjustment units are mounted on opposite sides of the second end of the tray to drive the two first connecting blocks to move respectively. The driven shaft is rotatably mounted on the ends of the two first connecting blocks away from their respective adjustment units, and the ends of the two first connecting blocks away from their respective adjustment units abut against the driven shaft. When the two adjustment units drive the two first connecting blocks to move respectively, the distance between the driven shaft and the driving shaft is adjusted so that the tension of the conveyor belt is adjusted.

2. The conveying device with adjustable conveyor belt tension according to claim 1, characterized in that, The adjustment unit further includes two second connecting blocks, which are installed on opposite sides of the first end of the tray, and the drive shaft is rotatably installed on one end of the two second connecting blocks, with one end of each of the two second connecting blocks abutting against the drive shaft.

3. The conveying device with adjustable conveyor belt tension according to claim 2, characterized in that, Each of the adjustment units includes an abutment and a connector, one abutment being movably connected to one connector, and each abutment being configured to move closer to and further away from a corresponding first connecting block, with the two connectors respectively connected to opposite sides of the tray for mounting the two first connecting blocks.

4. The conveying device with adjustable conveyor belt tension according to claim 3, characterized in that, Each of the first connecting blocks has at least one protrusion on one side facing the tray, and the tray has at least one groove on each of the opposite sides facing the two first connecting blocks. The extension direction of each groove is parallel to the movement direction of the driven shaft. Thus, when the two first connecting blocks are driven by the two adjustment units respectively, each protrusion is configured to move in one of the grooves.

5. The conveying device with adjustable conveyor belt tension according to claim 4, characterized in that, The adjustment assembly further includes a pair of first mounting members and a pair of second mounting members, and the two first connecting blocks are respectively mounted on opposite sides of the tray through one of the first mounting members, and the two second connecting blocks are respectively mounted on opposite sides of the tray through one of the second mounting members. The tray also forms at least one fixing hole on each of the opposite sides for mounting the two second connecting blocks. Each second connecting block forms at least one protrusion on the side facing the tray, and one of the protrusions is correspondingly mounted in one of the fixing holes.

6. The conveying device with adjustable conveyor belt tension according to claim 5, characterized in that, The conveying assembly further includes two first bearings and two second bearings, and the two ends of the driven shaft are respectively connected to the inner rings of the two first bearings. Each first connecting block has a first arc-shaped notch at the other end away from the adjusting unit, and the size of each first notch is adapted to the outer ring size of a first bearing for assembly. The two ends of the drive shaft are respectively connected to the inner rings of the two second bearings, and the other end of each second connecting block has a second arc-shaped notch at the other end away from its respective protrusion, and the size of each second notch is adapted to the outer ring size of a second bearing for assembly.

7. The conveying device with adjustable conveyor belt tension according to claim 6, characterized in that, The adjustment assembly further includes two first limiting blocks and two second limiting blocks, wherein the two first limiting blocks are detachably connected to the two first connecting blocks respectively, and the two first bearings are held between the two first limiting blocks. The other end of each first limiting block away from the corresponding first connecting block is configured to abut against a first bearing. The two second limiting blocks are detachably connected to the two second connecting blocks respectively, and the two second bearings are held between the two second limiting blocks. The other end of each second limiting block away from the corresponding second connecting block is configured to abut against a second bearing.

8. The conveying device with adjustable conveyor belt tension according to claim 7, characterized in that, Each of the first limiting blocks forms a first window extending through its opposite sides at one end away from the corresponding first connecting block, and the two ends of the driven shaft extend through the two first limiting blocks through the two first windows respectively. Each of the second limiting blocks forms a second window extending through its opposite sides at one end away from the corresponding second connecting block, and the two ends of the drive shaft extend through the two second limiting blocks through the two second windows respectively.

9. The conveying device with adjustable conveyor belt tension according to claim 8, characterized in that, The mounting body also includes a base, which has two vertical walls and a horizontal wall. The two vertical walls are respectively connected to the opposite ends of the horizontal wall, and the two vertical walls are arranged to extend in a vertically upward direction to form a groove in the base. The support plate is disposed on the top of the base and spans the groove and is installed with the two vertical walls.

10. A weight sorting machine, characterized in that, The weight sorting machine includes the conveying device with adjustable conveyor belt tension as described in any one of claims 1 to 9.

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