Adjustable pre-tightening mechanism and conveying device

Abstract

The embodiment of the utility model provides an adjustable pre-tightening mechanism and a conveying device. An adjusting assembly of the adjustable pre-tightening mechanism is movably installed on one side of an installation base in the width direction of the adjustable pre-tightening mechanism. The conveying belt mounting part is connected to the adjusting assembly, and movement of the adjusting assembly in the width direction is suitable for driving the conveying belt mounting part to synchronously move in the width direction. The elastic pre-tightening assembly is movably installed on the other side of the installation base in the width direction, and the elastic pre-tightening assembly is connected to the adjusting assembly. Thus, the elastic pre-tightening assembly can perform flexible pre-tightening on the conveyor belt mounting part, the pre-tightening force can be uniformly distributed, local stress concentration of the conveyor belt mounting part can be reduced, the service life of the conveyor belt mounting part can be prolonged, and the elastic pre-tightening assembly can adapt to small changes under different working conditions; and the adjustment flexibility of the elastic pre-tightening assembly can be improved. In addition, the elastic pre-tightening assembly is simple in structure, and the manufacturing cost can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying technical field, specifically, relate to a kind of adjustable pre-tightening mechanism and conveying device. BACKGROUND

[0002] The conveying device can convey the articles through the conveyor belt, facilitating the conveying and transporting of the articles. However, the conveying device of the related art generally conveys the articles by clamping the articles with a power clamping mechanism, and the flexibility of the power clamping mechanism is not high. SUMMARY

[0003] The utility model embodiment proposes an adjustable pre-tightening mechanism and a conveying device to improve the above technical problems.

[0004] The utility model embodiment achieves the above-mentioned purposes through the following technical solutions.

[0005] In the first aspect, the utility model embodiment provides an adjustable pre-tightening mechanism, which is applied to a conveying device. The adjustable pre-tightening mechanism includes a mounting seat, an adjusting assembly, a conveyor belt mounting piece, and an elastic pre-tightening assembly. The adjusting assembly is movably installed on one side of the mounting seat along the width direction of the adjustable pre-tightening mechanism. The conveyor belt mounting piece is connected to the adjusting assembly. The movement of the adjusting assembly along the width direction is adapted to drive the conveyor belt mounting piece to move synchronously along the width direction. The elastic pre-tightening assembly is movably installed on the other side of the mounting seat along the width direction. The elastic pre-tightening assembly is connected to the adjusting assembly.

[0006] In some embodiments, the adjusting assembly includes an adjusting piece and a moving piece. The adjusting piece is arranged through the mounting seat and connected to the moving piece. The conveyor belt mounting piece is connected to the moving piece. The movement of the adjusting piece along the width direction is adapted to drive the moving piece to move synchronously along the width direction.

[0007] In some embodiments, one side of the moving piece facing the elastic pre-tightening assembly is provided with a clearance opening. The clearance opening avoids the mounting seat.

[0008] In some embodiments, the adjusting assembly further includes a guide piece. The guide piece is installed on the mounting seat. The moving piece is movably connected to the guide piece.

[0009] In some embodiments, the moving piece includes a moving body, a first moving body, and a second moving body. The first moving body and the second moving body are respectively connected to the two sides of the moving body. The guide piece includes a first guide body and a second guide body. The first moving body is movably connected to the first guide body. The second moving body is movably connected to the second guide body.

[0010] In some embodiments, the elastic pre-tightening assembly includes an operating piece and an elastic piece. The elastic piece is connected to the operating piece and the adjusting assembly. The movement of the operating piece along the width direction is adapted to adjust the pre-tightening force of the elastic piece.

[0011] In some embodiments, the operation member comprises an operation body and an adapter body connected to each other, the operation body is arranged through the mounting seat and connected to the adapter body, the elastic member comprises an elastic body and a guide body, the guide body is connected between the two inner walls of the mounting seat, the elastic body and the adapter body are sleeved on the outer periphery of the guide body, one end of the elastic body is connected to the adapter body, and the other end of the elastic body is connected to the adjusting assembly, and the movement of the operation body in the width direction is suitable for adjusting the pre-tightening force of the elastic body.

[0012] In some embodiments, the elastic body comprises a first elastic body and a second elastic body, the guide body comprises a first guide sub-body and a second guide sub-body, and the adapter body is sleeved on the outer periphery of the first guide sub-body and the second guide sub-body respectively, the first elastic body is sleeved on the outer periphery of the first guide sub-body, and the second elastic body is sleeved on the outer periphery of the second guide sub-body.

[0013] In some embodiments, the adjustable pre-tightening mechanism further comprises an electric drive, a driving member, a driven member and a conveying belt, the electric drive, the driving member and the driven member are arranged on the conveying belt mounting member, the electric drive and the driving member are located on the opposite sides of the conveying belt mounting member respectively, the driving shaft of the electric drive is connected to the driving member, the driven member is located on the same side of the conveying belt mounting member as the driving member, and the conveying belt is connected to the driving member and the driven member respectively.

[0014] In the second aspect, the utility model provides a kind of conveying device, and conveying device includes conveying body and the adjustable pre-tightening mechanism of any one of the above embodiments, and the adjustable pre-tightening mechanism is installed in the end of conveying body.

[0015] The adjustable pre-tightening mechanism and the conveying device provided by the utility model can be applied to the conveying device, and the adjusting assembly of the adjustable pre-tightening mechanism is movably installed on one side of the mounting seat along the width direction of the adjustable pre-tightening mechanism. The conveying belt mounting member is connected to the adjusting assembly, and the movement of the adjusting assembly along the width direction is suitable for driving the conveying belt mounting member to move along the width direction synchronously. The elastic pre-tightening assembly is movably installed on the other side of the mounting seat along the width direction, and the elastic pre-tightening assembly is connected to the adjusting assembly. In this way, the position of the conveying belt mounting member can be adjusted by the adjusting assembly, so that the conveying belt mounting member can be in a suitable position, the elastic pre-tightening assembly can flexibly adjust the pre-tightening force on the conveying belt mounting member, so that the conveying belt mounting member can be maintained in the adjusted position, which helps to ensure that the conveying belt is located in a suitable position to ensure the conveying of the articles. The elastic pre-tightening assembly can flexibly pre-tighten the conveying belt mounting member, which helps to more evenly distribute the pre-tightening force, helps to reduce the stress concentration of the local conveying belt mounting member, helps to prolong the service life of the conveying belt mounting member, also helps the elastic pre-tightening assembly to adapt to the slight changes under different working conditions, and helps to improve the flexibility of the elastic pre-tightening assembly adjustment. In addition, the structure of the elastic pre-tightening assembly is simple, which helps to save the manufacturing cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the conveying device provided in an embodiment of the present invention is shown.

[0018] Figure 2 A schematic diagram of the adjustable pretensioning mechanism provided in this embodiment of the present invention is shown.

[0019] Figure 3 It shows Figure 2 A schematic diagram of the adjustable pretensioning component of the adjustable pretensioning mechanism.

[0020] Figure 4 It shows Figure 3 A schematic diagram of the adjustable preload assembly from another perspective.

[0021] Figure 5 It shows Figure 3 A longitudinal sectional view of the adjustable preload assembly.

[0022] Figure 6 It shows Figure 3 A schematic diagram of the adjustable preload assembly from another perspective. Detailed Implementation

[0023] To enable those skilled in the art to better understand the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] See Figure 1The utility model discloses an adjustable pre-tightening mechanism 100 can be used for conveying articles such as trays, pallets and the like.

[0026] Referring to Figure 2 And Figure 3 In some embodiments, the adjustable pre-tightening mechanism 100 includes a mounting seat 11, an adjusting assembly 12, a conveyor belt mounting member 13 and an elastic pre-tightening assembly 14. The adjusting assembly 12 is movably mounted on one side of the mounting seat 11 along the width direction X of the adjustable pre-tightening mechanism 100. The conveyor belt mounting member 13 is connected to the adjusting assembly 12, and the movement of the adjusting assembly 12 along the width direction X of the adjustable pre-tightening mechanism 100 is adapted to drive the conveyor belt mounting member 13 to move synchronously along the width direction X of the adjustable pre-tightening mechanism 100. The elastic pre-tightening assembly 14 is movably mounted on the other side of the mounting seat 11 along the width direction X of the adjustable pre-tightening mechanism 100, and the elastic pre-tightening assembly 14 is connected to the adjusting assembly 12.

[0027] In this way, the position of the conveyor belt mounting member 13 can be adjusted by the adjusting assembly 12, so that the conveyor belt mounting member 13 can be in a suitable position, and the elastic pre-tightening assembly 14 can flexibly adjust the pre-tightening force on the conveyor belt mounting member 13, so that the conveyor belt mounting member 13 can be maintained in the adjusted position, which helps to ensure that the conveyor belt 18 is located in a suitable position to ensure the conveying of the articles.

[0028] The elastic pre-tightening assembly 14 can flexibly pre-tighten the conveyor belt mounting member 13, which helps to more evenly distribute the pre-tightening force, helps to reduce stress concentration in the local part of the conveyor belt mounting member 13, helps to prolong the service life of the conveyor belt mounting member 13, also helps the elastic pre-tightening assembly 14 to adapt to the slight changes under different working conditions, and helps to improve the flexibility of the elastic pre-tightening assembly 14 adjustment. The structure of the elastic pre-tightening assembly 14 is simple, which helps to save the manufacturing cost.

[0029] In the adjustable pre-tightening mechanism 100, the conveyor belt mounting member 13 and the adjusting assembly 12 can be connected in a fastener connection manner. For example, the conveyor belt mounting member 13 can be provided with a mounting clamping groove, part of the structure of the adjusting assembly 12 is accommodated in the mounting clamping groove, and multiple surfaces of the part of the structure of the adjusting assembly 12 abut multiple wall surfaces of the mounting clamping groove, and multiple fasteners are respectively connected to the multiple surfaces and the multiple wall surfaces, so as to realize the stable connection of the conveyor belt mounting member 13 and the adjusting assembly 12.

[0030] Wherein, the mounting base 11, the adjusting assembly 12 and the elastic pre-tightening assembly 14 are defined as the adjustable pre-tightening assembly 20, and the number of the adjustable pre-tightening assembly 20 can be multiple, for example, the adjustable pre-tightening mechanism 100 can include two, three, four, five or other number of adjustable pre-tightening assemblies 20, and the conveyor belt mounting piece 13 is connected to the multiple adjustable pre-tightening assemblies 20.

[0031] In this way, the multiple adjustable pre-tightening assemblies 20 help to better adjust the position of the conveyor belt mounting piece 13, and also help to better ensure that the conveyor belt mounting piece 13 can be maintained at the adjusted position, thereby helping to ensure that the conveyor belt 18 is located at a suitable position to ensure the conveying of the articles.

[0032] Referring to Figures 3 to 5 In some embodiments, the adjusting assembly 12 includes an adjusting piece 121 and a moving piece 122, the adjusting piece 121 is connected to the moving piece 122 and passes through the mounting base 11, and the conveyor belt mounting piece 13 is connected to the moving piece 122, and the movement of the adjusting piece 121 along the width direction X of the adjustable pre-tightening mechanism 100 is adapted to drive the moving piece 122 to move along the width direction X of the adjustable pre-tightening mechanism 100 synchronously.

[0033] In this way, the position of the moving piece 122 can be adjusted by operating the adjusting piece 121 to adjust the position of the conveyor belt mounting piece 13. The linkage mode of the adjusting piece 121 and the moving piece 122 is simple, which is convenient for the user to operate and also facilitates the manufacturing of the adjusting assembly 12.

[0034] Wherein, the adjusting piece 121 can be a screw, a bolt or the like, which can be specifically set according to the actual situation.

[0035] Wherein, the number of the adjusting piece 121 can be multiple, for example, the adjusting assembly 12 can include two, three, four or other number of adjusting pieces 121, which can be specifically set with a computer. In this way, the multiple adjusting pieces 121 help to increase the contact area with the moving piece 122, which helps the adjusting piece 121 to better act on the moving piece 122, thereby better adjusting the moving piece 122.

[0036] In some embodiments, the side of the moving piece 122 facing the elastic pre-tightening assembly 14 is provided with a avoiding opening 1221, and the avoiding opening 1221 avoids the mounting base 11.

[0037] In this way, the moving piece 122 can avoid the mounting base 11 through the avoiding opening 1221, which helps to reduce the situation that the mounting base 11 hinders the movement of the moving piece 122, and helps to ensure the smoothness of the movement of the moving piece 122.

[0038] In some embodiments, the adjusting assembly 12 further comprises a guide 123 mounted on the mounting base 11, and the moving member 122 is movably connected to the guide 123. In some embodiments, the guide 123 can be a linear bearing.

[0039] In this way, the guide 123 can guide the moving path of the moving member 122, which helps to reduce the deviation of the moving path of the moving member 122, and also helps to reduce the friction between the moving member 122 and the guide 123, and facilitates the movement of the moving member 122.

[0040] In addition, the guide 123 can provide a support force for the moving member 122, which helps to reduce the shaking of the moving member 122 when moving relative to the guide 123, and helps to improve the stability of the moving member 122 when moving relative to the guide 123.

[0041] Referring to Figure 3 and Figure 6 In some embodiments, the moving member 122 comprises a moving body 1222, a first moving body 1223 and a second moving body 1224, the first moving body 1223 and the second moving body 1224 are respectively connected to two sides of the moving body 1222, the guide 123 comprises a first guide body 1231 and a second guide body 1232, the first moving body 1223 is movably connected to the first guide body 1231, and the second moving body 1224 is movably connected to the second guide body 1232.

[0042] In this way, the first guide body 1231 and the second guide body 1232 can jointly guide the moving path of the moving member 122, which helps to more accurately guide the moving path of the moving member 122 relative to the guide 123, and also helps to better support and fix the moving member 122, which helps to reduce the inclination or deviation problem caused by a single guide body, and helps to improve the smoothness of the movement of the moving member 122.

[0043] In addition, when the force applied to the moving body 1222 is large, the first moving body 1223 and the second moving body 1224 can help to disperse the force received by the moving body 1222, which helps to prolong the service life of the moving body 1222.

[0044] Referring to Figures 3 to 6 In some embodiments, the elastic pre-tightening assembly 14 comprises an operating member 141 and an elastic member 142, the elastic member 142 is connected to the operating member 141 and the adjusting assembly 12, and the movement of the operating member 141 along the width direction X is adapted to adjust the pre-tightening force of the elastic member 142.

[0045] In this way, the pre-tightening force of the elastic member 142 can be adjusted by operating the operating member 141, so that the conveying belt mounting member 13 can be maintained at the adjusted position. The elastic member 142 can flexibly pre-tighten the conveying belt mounting member 13, which helps to more evenly distribute the pre-tightening force, helps to reduce stress concentration in local parts of the conveying belt mounting member 13, helps to prolong the service life of the conveying belt mounting member 13, also helps the elastic pre-tightening assembly 14 to adapt to slight changes in different working conditions, and helps to improve the flexibility of the elastic pre-tightening assembly 14 adjustment. The linkage mode of the operating member 141 and the elastic member 142 is simple, which is convenient for the user to operate and also facilitates the manufacturing of the elastic pre-tightening assembly 14.

[0046] In some embodiments, the operating member 141 comprises a connecting operating body 1411 and an adapter body 1412, and the operating body 1411 is arranged through the mounting seat 11 and connected to the adapter body 1412.

[0047] In this way, the adapter body 1412 helps to disperse and buffer the impact force of the operating body 1411 on the elastic member 142, which helps to reduce the case that the elastic member 142 is damaged by excessive impact, and helps to prolong the service life of the elastic member 142.

[0048] The operating body 1411 can be a screw, a bolt or the like, which can be specifically set according to actual conditions.

[0049] The number of operating bodies 1411 can be multiple, for example, the operating member 141 can comprise two, three, four or other number of operating bodies 1411, which can be specifically set according to actual conditions. In this way, multiple operating bodies 1411 help to increase the contact area with the adapter body 1412, which helps the operating body 1411 to better act on the adapter body 1412, so as to better adjust the adapter body 1412 to adjust the elastic main body 1421.

[0050] In some embodiments, the elastic member 142 comprises an elastic main body 1421 and a guide main body 1422, the guide main body 1422 is connected between the two inner walls of the mounting seat 11, the elastic main body 1421 and the adapter body 1412 are sleeved on the outer periphery of the guide main body 1422, one end of the elastic main body 1421 is connected to the adapter body 1412, the other end of the elastic main body 1421 is connected to the adjusting assembly 12, and the movement of the operating body 1411 along the width direction X is adapted to adjust the pre-tightening force of the elastic main body 1421. The elastic main body 1421 can be a spring.

[0051] Thus, the guide body 1422 can guide the movement path of the elastic body 1421, which helps to reduce the deviation of the movement path of the elastic body 1421, and also helps to reduce the friction between the elastic body 1421 and the guide body 1422, which helps to facilitate the elastic stretching and contraction of the elastic body 1421, and also helps to reduce the shaking of the elastic body 1421 when moving relative to the guide body 1422, and helps to improve the stability of the movement of the elastic body 1421 relative to the guide body 1422.

[0052] In some embodiments, the elastic body 1421 includes a first elastic body 14211 and a second elastic body 14212, and the guide body 1422 includes a first guide sub-body 14221 and a second guide sub-body 14222, and the adapter 1412 is sleeved on the outer periphery of the first guide sub-body 14221 and the second guide sub-body 14222, respectively, the first elastic body 14211 is sleeved on the outer periphery of the first guide sub-body 14221, and the second elastic body 14212 is sleeved on the outer periphery of the second guide sub-body 14222.

[0053] Thus, the first guide sub-body 14221 and the second guide sub-body 14222 can jointly guide the movement path of the elastic body 1421, which helps to more accurately guide the movement path of the elastic body 1421 relative to the guide body 1422, and also helps to reduce the inclination or deviation problem caused by a single guide sub-body, and helps to improve the smoothness of the movement of the elastic body 1421. The adapter 1412 is sleeved on the outer periphery of the first guide sub-body 14221 and the second guide sub-body 14222, respectively, which also allows the adapter 1412 to act on the first elastic body 14211 and the second elastic body 14212 at the same time, and helps to improve the synchronization of the movement of the first elastic body 14211 and the second elastic body 14212.

[0054] In addition, when a larger force is applied to the adapter 1412, the first elastic body 14211 and the second elastic body 14212 can help to disperse the force received by a single elastic body, and help to prolong the service life of a single elastic body.

[0055] In some embodiments, one end of the first elastic body 14211 can be connected to the adapter 1412, and the other end of the first elastic body 14211 is connected to the first guide body 1231, one end of the second elastic body 14212 can be connected to the adapter 1412, and the other end of the second elastic body 14212 is connected to the second guide body 1232, which helps to better arrange the positions of various components, and improve the compactness of the structure of the adjustable pre-tightening mechanism 100.

[0056] Referring back to Figure 1 and Figure 2In some embodiments, the adjustable pre-tightening mechanism 100 further comprises an electric driver 15, a driving element 16, a driven element 17 and a transmission belt 18, the electric driver 15, the driving element 16, the driven element 17 and the transmission belt 18 are installed on the transmission belt mounting element 13, the electric driver 15 and the driving element 16 are respectively located on the opposite sides of the transmission belt mounting element 13, and the driving shaft of the electric driver 15 is connected to the driving element 16, the driven element 17 is located on the same side of the transmission belt mounting element 13 as the driving element 16, and the transmission belt 18 is connected to the driving element 16 and the driven element 17 respectively. Among them, the transmission belt 18 can be a belt.

[0057] In this way, the driving element 16 can be driven by the electric driver 15 to act, so that the transmission belt 18 drives the driven element 17 to act synchronously. The adjustable pre-tightening mechanism 100 drives the driving element 16 and the driven element 17 to act in an electric manner, which is simple and convenient to manufacture.

[0058] Among them, the number of driven elements 17 can be multiple, for example, the number of driven elements 17 is five, six, seven, eight, nine, ten or other numbers, which can be set according to actual conditions. In this way, it is helpful to increase the contact area of the driven element 17 and the transmission belt 18, and to facilitate the force transmission between the driven element 17 and the transmission belt 18, so as to facilitate the better action of the transmission belt 18.

[0059] In some embodiments, the conveying device 1000 comprises a conveying body 200 and an adjustable pre-tightening mechanism 100, and the adjustable pre-tightening mechanism 100 is installed at the end of the conveying body 200. In this way, the conveying body 200 can convey articles together with the transmission belt 18, which helps to improve the conveying efficiency of the conveying device 1000.

[0060] Exemplarily, the conveying body 200 can comprise a plurality of rollers, and the transmission belt 18 can be a belt, and the plurality of rollers and the belt can convey articles together, thereby improving the conveying efficiency of the conveying device 1000.

[0061] Among them, the number of adjustable pre-tightening mechanisms 100 can be two, and the two adjustable pre-tightening mechanisms 100 are respectively installed at the ends of the conveying body 200 in the width direction X. In this way, the two adjustable pre-tightening mechanisms 100 can respectively adjust the position distance between the corresponding transmission belt mounting element 13 and the conveying body 200 from both sides of the conveying body 200, so as to adjust the clamping distance of the conveying device 1000 to better clamp the conveyed articles.

[0062] Exemplarily, one adjustable pre-tightening mechanism 100 can adjust the position distance between the corresponding conveyor belt mounting member 13 and the conveying body 200 from one side of the conveying body 200, for example, can adjust the corresponding conveyor belt mounting member 13 to be close to the conveying body 200, and another adjustable pre-tightening mechanism 100 can adjust the position distance between the corresponding conveyor belt mounting member 13 and the conveying body 200 from the other side of the conveying body 200, for example, also adjust the corresponding conveyor belt mounting member 13 to be close to the conveying body 200. In this way, the two adjustable pre-tightening mechanisms 100 can reduce the clamping distance of the conveying device 1000 to better clamp the product and prevent the conveying device 1000 from being unable to clamp the conveying product due to the too large clamping distance of the conveying device 1000.

[0063] In summary, the adjustable pre-tightening mechanism 100 and the conveying device 1000 provided by the embodiment of the present application can adjust the position distance between the corresponding conveyor belt mounting member 13 and the conveying body 200 from one side of the conveying body 200, for example, can adjust the corresponding conveyor belt mounting member 13 to be close to the conveying body 200, and another adjustable pre-tightening mechanism 100 can adjust the position distance between the corresponding conveyor belt mounting member 13 and the conveying body 200 from the other side of the conveying body 200, for example, also adjust the corresponding conveyor belt mounting member 13 to be close to the conveying body 200. In this way, the two adjustable pre-tightening mechanisms 100 can reduce the clamping distance of the conveying device 1000 to better clamp the product and prevent the conveying device 1000 from being unable to clamp the conveying product due to the too large clamping distance of the conveying device 1000.

[0064] In addition, the terms "first", "second", and the like are used only to distinguish descriptions, and cannot be understood as specifically or particularly indicating or specifying structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in the plurality of embodiments or examples of the embodiments of the present application. In the embodiments of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the embodiments of the present application and the features of the different embodiments or examples without contradiction.

[0065] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; although the embodiments of the present application are described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the embodiments of the present application.

Claims

1. An adjustable pre-tensioning mechanism for use in a conveyor, characterized by The adjustable pre-tightening mechanism comprises: a mounting base; an adjusting assembly movably mounted on one side of the mounting base along a width direction of the adjustable pre-tightening mechanism; a conveyor mounting member connected to the adjusting assembly, movement of the adjusting assembly along the width direction being adapted to drive the conveyor mounting member to move along the width direction synchronously; and an elastic pre-tightening assembly movably mounted on the other side of the mounting base along the width direction, the elastic pre-tightening assembly being connected to the adjusting assembly.

2. The adjustable preloading mechanism of claim 1, wherein, The adjusting assembly comprises an adjusting member and a moving member, the adjusting member penetrating through the mounting base and being connected to the moving member, the conveyor mounting member being connected to the moving member, movement of the adjusting member along the width direction being adapted to drive the moving member to move along the width direction synchronously.

3. The adjustable preloading mechanism of claim 2, wherein, The moving member is provided with a clearance opening on the side facing the elastic pre-tightening assembly, the clearance opening avoiding the mounting base.

4. The adjustable preloading mechanism of claim 2, wherein, The adjusting assembly further comprises a guide member, the guide member being mounted on the mounting base, the moving member being movably connected to the guide member.

5. The adjustable preloading mechanism of claim 4, wherein, The moving member comprises a moving body, a first moving body and a second moving body, the first moving body and the second moving body being respectively connected to the two sides of the moving body, the guide member comprising a first guide body and a second guide body, the first moving body being movably connected to the first guide body, the second moving body being movably connected to the second guide body.

6. The adjustable preloading mechanism of claim 1, wherein, The elastic pre-tightening assembly comprises an operating member and an elastic member, the elastic member being connected to the operating member and the adjusting assembly, movement of the operating member along the width direction being adapted to adjust the pre-tightening force of the elastic member.

7. The adjustable preloading mechanism of claim 6, wherein, The operating member comprises an operating body and a switching body connected to each other, the operating body penetrating through the mounting base and being connected to the switching body, the elastic member comprising an elastic body and a guide body, the guide body being connected between the two inner walls of the mounting base, the elastic body and the switching body being sleeved on the outer periphery of the guide body, one end of the elastic body being connected to the switching body, the other end of the elastic body being connected to the adjusting assembly, movement of the operating body along the width direction being adapted to adjust the pre-tightening force of the elastic body.

8. The adjustable preloading mechanism of claim 7, wherein, The elastic body comprises a first elastic body and a second elastic body, the guide body comprises a first guide sub-body and a second guide sub-body, the switching body being sleeved on the outer periphery of the first guide sub-body and the second guide sub-body respectively, the first elastic body being sleeved on the outer periphery of the first guide sub-body, the second elastic body being sleeved on the outer periphery of the second guide sub-body.

9. The adjustable preloading mechanism of claim 1, wherein, The adjustable pre-tightening mechanism further comprises an electric drive member, a driving member, a driven member and a conveyor belt, the electric drive member, the driving member, the driven member and the conveyor belt being mounted on the conveyor mounting member, the electric drive member and the driving member being respectively located on the two opposite sides of the conveyor mounting member, a driving shaft of the electric drive member being connected to the driving member, the driven member being located on the same side of the conveyor mounting member as the driving member, the conveyor belt being connected to the driving member and the driven member respectively.

10. A conveyor apparatus, characterized by, The adjustable pre-tightening mechanism comprises: a conveyor body; and ​ The adjustable pre-tensioning mechanism according to any one of claims 1 to 9, mounted to an end of the transfer body.

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