Circulating buffer conveyor

Abstract

The utility model discloses a circulating temporary storage conveyor which comprises a frame body, a conveying belt, a conveying belt, a conveying belt and a conveying belt conveying belt. The two transverse ends of the frame body are provided with a box inlet and a box outlet respectively. The transmission part is positioned in the frame main body and comprises a pair of second transmission belts which are longitudinally arranged to form a closed loop and are connected with the driving part to synchronously rotate; the plurality of cache platforms are movably connected between the pair of second conveying belts and are arranged at intervals along the length of the second conveying belts; each temporary storage platform is provided with a conveying roller capable of bearing and transferring the box body and driving the box body to transversely move; and when the pair of second conveying belts is driven to rotate synchronously, the conveying rollers are kept in a horizontal state all the time. Under the condition that conveying of the box bodies is not affected, buffering of the box bodies is achieved, the situation that conveying is affected due to accumulation of the multiple box bodies is avoided, the second conveying belt drives the buffering platform to move circularly, the box bodies at different positions can be borne and transferred, and the box body buffering device is more flexible and suitable for different use environments.

Description

Technical Field

[0001] The utility model relates to the field of material transportation, in particular to a circulation buffer conveyor. Background Art

[0002] The box can be used as a container to organize parts and components together to avoid missing or misplaced parts during transportation. It is used in transportation, distribution, storage, circulation processing and other links in factory logistics.

[0003] During the transportation of boxes, on the one hand, because the speed of the conveyor line does not match that of the entire production line, or there is a time delay between the conveyor line and the next process, the boxes on the conveyor line need to wait, resulting in excessive accumulation of boxes and affecting transportation; for example, when the boxes transition horizontally from the first conveyor line to the second conveyor line, if there is a speed difference between the first conveyor line and the second conveyor line, it is easy to cause a delay in the transition of the boxes, resulting in box accumulation;

[0004] On the other hand, some existing cache conveying equipment is provided with a cache platform that is driven to lift and move on the conveyor line, that is, the cache platform moves the stacked boxes that need to be cached upward one by one to reduce the number of boxes on the conveyor line. When the boxes are in a normal conveying state, the cache platform moves the boxes downward for conveying. The problem with this method is that the up and down reciprocating lifting requires the boxes to be cached in sequence to receive materials or convey and feed materials. For example, the cached boxes are marked as AG from bottom to top. When conveying and feeding, the boxes can only be conveyed from the bottom, that is, AG is conveyed in sequence. This method cannot be adjusted according to the use environment and has poor flexibility. For example, when individual boxes are damaged during transportation, the cache platform will lift and cache the damaged boxes, but this cache will affect the conveying and feeding of the boxes above the damaged boxes. Summary of the invention

[0005] The utility model aims to provide a circulating buffer conveyor, which can realize the buffering of boxes without affecting the transportation of the boxes, so as to avoid the accumulation of multiple boxes and affect the transportation, and the second conveyor belt drives the buffer platform to move in a circular manner, so as to receive and transfer boxes at different positions, which is more flexible and suitable for different usage environments.

[0006] To achieve the above purpose, the circulating buffer conveyor includes:

[0007] The frame body has box inlet and box outlet at both ends;

[0008] The transmission components, located in the frame body, include:

[0009] A pair of second conveyor belts are longitudinally arranged to form a closed loop and connected to the driving component for synchronous rotation;

[0010] A plurality of buffer platforms, with active connections between a pair of second conveyor belts and arranged at intervals along the length of the second conveyor belts; each buffer platform is provided with conveying rollers capable of receiving and transferring boxes and driving the boxes to move laterally.

[0011] Wherein, when a pair of second conveyor belts are driven to rotate synchronously, the conveying rollers always remain in a horizontal state.

[0012] In some examples of the present utility model, the second conveyor belt is wound around the outside of a guide wheel group, so that the upper and lower parts of the second conveyor belt have an angular motion trajectory and the middle part has a vertical motion trajectory.

[0013] In some examples of the present utility model, the transmission component further includes:

[0014] A pair of guide wheel groups, longitudinally arranged, and each guide wheel group includes a plurality of guide wheels.

[0015] Wherein, the second conveyor belt is wound around the outside of the plurality of guide wheels, and a pair of guide wheel groups rotate synchronously.

[0016] In some examples of the present utility model, each guide wheel group includes a first guide wheel, a second guide wheel, and a third guide wheel that are symmetrically arranged up and down; the first guide wheel, the second guide wheel, and the third guide wheel are respectively rotatably installed on a support plate.

[0017] One of the support plates is connected to the frame body through an adjusting component and slides up and down for positioning.

[0018] In some examples of the present utility model, the adjusting component includes:

[0019] An adjusting rod, threadedly connected to a fixed seat on the frame body and rotatably connected to the support plate at the lower end.

[0020] Wherein, the support plate is installed on the frame body through a linear slide rail.

[0021] In some examples of the present utility model, the frame body is provided with a guide block; the guide block is provided with a guide groove matching the moving trajectory of the second conveyor belt.

[0022] Wherein, the buffer platform is provided with a guide rod that slides in the guide groove.

[0023] In some examples of the present utility model, the driving component includes:

[0024] A driving wheel, fixedly installed at the output end of a driving motor.

[0025] A driven wheel, coaxially connected to one of the guide wheels.

[0026] Wherein, the driving wheel and the driven wheel are connected by a first conveyor belt, and a pair of longitudinally adjacent guide wheels or the driving wheel are connected by a transmission rod.

[0027] In some examples of the present utility model, sensors for identifying the upper box body are provided at both the box inlet and the box outlet on the identification buffer platform;

[0028] The sensor transmits the sensing signal to the controller, and the controller controls the action of the driving motor.

[0029] In some examples of the present utility model, the buffer platform further includes:

[0030] A pair of seat plates arranged longitudinally, with a connecting block rotatably mounted at the upper end of each seat plate, and the connecting block is fixed to the second conveyor belt;

[0031] Wherein, a plurality of conveying rollers rotate horizontally at intervals between the pair of seat plates.

[0032] In some examples of the present utility model, the six surfaces of the frame body are enclosed by plates;

[0033] The transverse plates are slidably mounted on the frame body and locked and fixed, and are respectively provided with a box inlet and a box outlet.

[0034] Compared with the prior art, the present circulating buffer conveyor is driven and connected by a pair of second conveyor belts to rotate synchronously, and a plurality of buffer platforms are movably connected between the pair of second conveyor belts, capable of receiving and transporting the box body. On the one hand, caching of the box body can be realized without affecting the transportation of the box body, avoiding the accumulation of multiple box bodies and affecting the transportation. On the other hand, the second conveyor belt drives the buffer platform to move in a cycle, capable of receiving and transporting the box body at different positions, being more flexible and applicable to different use environments;

[0035] Since the upper and lower parts of the second conveyor belt have an angular movement trajectory and the middle part has a vertical movement trajectory, the buffer platform can normally lift and lower at the vertical part of the second conveyor belt, and can be effectively buffered when transitioning to the angular part of the second conveyor belt, avoiding problems such as shaking and impact of the buffer platform due to too large a turning angle when rotating with the second conveyor belt;

[0036] Since the frame body is provided with guide blocks, and the guide blocks are provided with guide grooves matching the movement trajectory of the second conveyor belt, and the guide rods on the buffer platform slide in the guide grooves for guiding, when the buffer platform rotates with the second conveyor belt, the angle can be flexibly changed, ensuring that the conveying rollers are always in a horizontal state and avoiding the situation of shaking during the movement of the buffer platform. Description of the Drawings

[0037] Figure 1 It is the overall schematic diagram of the present utility model (ignoring some plates outside the frame body);

[0038] Figure 2It is the overall internal schematic diagram of the present utility model (ignoring the six panel materials outside the frame body);

[0039] Figure 3 It is the schematic diagram of the transmission component in the present utility model;

[0040] Figure 4 It is the assembly schematic diagram of the adjusting component and the guide wheel set in the present utility model;

[0041] Figure 5 It is the schematic diagram of the driving component in the present utility model;

[0042] Figure 6 It is the front view of the guide block and the guide groove in the present utility model;

[0043] Figure 7 It is the schematic diagram of the buffer platform in the present utility model;

[0044] In the figure: 10, frame body, 11, inlet of the box, 12, outlet of the box;

[0045] 20, buffer platform, 21, seat plate, 22, guide rod, 23, conveying roller, 24, connecting block, 25, connecting rod;

[0046] 30, driving component, 31, driving wheel, 32, first conveyor belt, 33, driven wheel, 34, transmission rod;

[0047] 41, guide block, 42, guide groove;

[0048] 50, transmission component, 51, first guide wheel, 52, second guide wheel, 53, third guide wheel, 54, second conveyor belt, 55, support plate;

[0049] 61, adjusting rod, 62, fixed seat. Detailed implementation manners

[0050] In order to make the purpose, technical solutions and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments of the present utility model. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0051] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the field to which the present utility model pertains. The terms "first", "second" and similar terms used in the description and claims of the present utility model patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not necessarily denote a quantity limitation. The terms such as "comprising" or "including" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0052] As Figure 1 , Figure 2 , Figure 3 shown, this cyclic buffer conveyor includes:

[0053] A frame body 10, with an inlet box opening 11 and an outlet box opening 12 respectively provided at both transverse ends;

[0054] A transmission component 50, located inside the frame body 10, includes:

[0055] A pair of second conveyor belts 54, longitudinally arranged, forming a closed loop and connected to the driving component 30 for synchronous rotation;

[0056] A plurality of buffer platforms 20, movably connected between the pair of second conveyor belts 54 and arranged at intervals along the length of the second conveyor belts 54; each buffer platform 20 is provided with conveying rollers 23 capable of receiving and transferring the boxes and driving the boxes to move horizontally;

[0057] Wherein, when the pair of second conveyor belts 54 are driven to rotate synchronously, the conveying rollers 23 always remain in a horizontal state;

[0058] Specifically, the frame body 10 can be formed into a square column frame by splicing and welding using rectangular steel, aluminum profiles, etc. The six sides of the frame body 10, including the upper, lower, transverse and longitudinal sides, are enclosed by plates, so that the frame body 10 forms a box structure. The inlet box opening 11 and the outlet box opening 12 are respectively provided on the transverse plates, and the inlet box opening 11 and the outlet box opening 12 can ensure the entry and exit of the boxes;

[0059] For the transmission component 50, the pair of second conveyor belts 54 can be driven to rotate synchronously, that is, a single second conveyor belt 54 can rotate forward or backward;

[0060] The buffer platform 20 is movably connected between a pair of second conveyor belts 54. For example, the buffer platform 20 is rotatably installed between a pair of second conveyor belts 54. Under the action of gravity, a plurality of conveying rollers 23 in the buffer platform 20 can maintain a horizontal state. That is, when the second conveyor belt 54 rotates, the buffer platform 20 circumferentially moves on the second conveyor belt 54, and gravity enables the conveying rollers 23 to normally receive and transfer the boxes.

[0061] Place this circulating buffer conveyor between adjacent conveyor lines. The inlet 11 and the outlet 12 can be adjusted according to the height of the conveyor line, so that the box can enter from the inlet 11 and exit from the outlet 12. For example, the plates of the frame body 10 with the inlet 11 and the outlet 12 slide on the frame body 10 and can be fixed in position by locking screws.

[0062] Taking the number of buffer platforms 20 as A - G in sequence and the conveyor line conveying horizontally from right to left as an example, the box a enters from the inlet 11 on the conveyor line to the buffer platform 20A.

[0063] When the adjacent conveyor lines are conveying boxes at the same height, rotate the second conveyor belt 54 to make a pair of adjacent buffer platforms 20 arranged horizontally and dock between the inlet 11 and the outlet 12. For example, the buffer platforms 20C and F are arranged horizontally and dock between a pair of conveyor lines. It should be noted that by installing this circulating buffer conveyor on a certain lifting platform, it can ensure that the horizontally arranged buffer platforms 20C and F can smoothly receive the boxes. In addition, the horizontal adjacent buffer platforms 20C and F have a small interval, which can receive and smoothly transition the boxes.

[0064] When the adjacent conveyor lines have a height difference in conveying boxes, rotate the second conveyor belt 54 to make one of the buffer platforms 20 receive the box. For example, the buffer platform 20A receives the box a on the right side, and then rotate the second conveyor belt 54. The buffer platform 20A rotates to a certain height on the left side, so that the box a rotates at the outlet 12 on the left side, thus realizing the conveying of the box at the height difference of the conveyor line.

[0065] When there are many boxes being conveyed on the conveyor line or there is a speed difference on adjacent conveyor lines causing a box blockage, the second conveyor belt 54 is rotated so that the buffer platform 20A receives box a on the right side, and then the second conveyor belt 54 is rotated so that the buffer platform 20B receives box b on the right side, and the second conveyor belt 54 is rotated so that the buffer platform 20C receives box c on the right side, and the cycle is repeated in sequence to achieve buffering of boxes by the buffer platforms 20A-G, and when it is necessary to convey, the second conveyor belt 54 is rotated and the buffer platform 20 is rotated to the left, so that the box can be conveyed to the left to the conveyor line; when the box does not need to be conveyed, the second conveyor belt 54 can be rotated to directly skip the left conveying of the buffer platform 20, for example, the buffer platform 20D receives the damaged box d on the right side, and the second conveyor belt 54 is rotated so that the buffer platform 20D skips the left conveying, and the adjacent buffer platforms 20C and E can be conveyed to the left, which is more efficient;

[0066] The circulating buffer conveyor is driven and connected by a pair of second conveyor belts 54 for synchronous rotation, and a plurality of buffer platforms 20 are movably connected between the pair of second conveyor belts 54, and can receive and transfer boxes. On the one hand, the boxes can be cached without affecting the transportation of the boxes, thus avoiding the accumulation of multiple boxes and affecting the transportation. On the other hand, the second conveyor belt 54 drives the buffer platform 20 to move in a circular manner, and can receive and transfer boxes at different positions. The conveyor is more flexible and suitable for different usage environments.

[0067] In some examples of the present invention, Figure 2 , Figure 3 As shown, the transmission component 50 also includes:

[0068] A pair of guide wheel groups are arranged longitudinally, each guide wheel group includes a plurality of guide wheels;

[0069] The second transmission belt 54 is rotatably wound around the outer sides of a plurality of guide wheels, and a pair of guide wheel groups rotate synchronously;

[0070] Specifically, a pair of guide wheel groups corresponds to a pair of second transmission belts 54; a plurality of guide wheels on the longitudinal side are rotatably installed, and the second transmission belt 54 is wound around the outer sides of the plurality of guide wheels;

[0071] As explained, the second transmission belt 54 can be a transmission chain and the corresponding guide wheel can be a sprocket. This method can improve the transmission accuracy, but there is a problem that vibration shock may be generated during the transmission process. It is suitable for caching large sizes and a large number of boxes. The second transmission belt 54 can be a transmission belt and the corresponding guide wheel can be a pulley. This method has stable transmission, but there is a problem that friction may exist between the transmissions, resulting in reduced accuracy. It is suitable for caching small sizes and a small number of boxes.

[0072] In some examples of the present invention, Figure 4As shown, each set of guide wheel groups includes a first guide wheel 51, a second guide wheel 52, and a third guide wheel 53 that are symmetrically arranged up and down;

[0073] The second conveyor belt 54 is wound around the outside of the guide wheel group, so that the upper and lower parts of the second conveyor belt 54 have a angular motion trajectory and the middle part has a vertical motion trajectory;

[0074] Specifically, the midlines of the first guide wheel 51, the second guide wheel 52, and the third guide wheel 53 are connected to form an isosceles triangle. For example, Figure 4 As shown, the first guide wheel 51 and the third guide wheel 53 are symmetrically located on the transverse sides of the second guide wheel 52, and the second guide wheel 52 is relatively far from the inlet 11 relative to the first guide wheel 51 and the third guide wheel 53;

[0075] The second conveyor belt 54 is wound around the outside of the guide wheel group, that is, the middle part of the second conveyor belt 54 is vertically arranged, and the upper and lower parts of the second conveyor belt 54 are triangularly arranged. The buffer platform 20 is connected to the second conveyor belt 54 and always maintains a fixed angle relative to the frame body 10 (the conveying rollers 23 are always horizontal). At this time, the buffer platform 20 normally rises and falls at the vertical part of the second conveyor belt 54, and can be effectively buffered when transitioning to the angular part of the second conveyor belt 54, avoiding problems such as shaking and impact of the buffer platform 20 due to too large a turning angle when rotating with the second conveyor belt 54.

[0076] In some examples of the present utility model, as Figure 3 、 Figure 4 shown, the first guide wheel 51, the second guide wheel 52, and the third guide wheel 53 are respectively rotatably installed on the support plate 55;

[0077] One of the support plates 55 is slidably connected up and down to the frame body 10 through an adjusting member and positioned;

[0078] Furthermore, the adjusting member includes:

[0079] An adjusting rod 61, which is threadedly connected to the fixed seat 62 on the frame body 10 and rotatably connected to the lower end of the support plate 55;

[0080] Among them, the support plate 55 is installed on the frame body 10 through a linear slide rail;

[0081] Specifically, the adjusting member is used to adjust the position of the support plate 55 so that the second conveyor belt 54 is in a certain tension state; the adjusting rod 61 can be a telescopic rod, that is, the telescopic rod has a certain elastic expansion and contraction, driving the support plates 55 on the same side to move away from each other, and the second conveyor belt 54 is in a tension state, avoiding a reduction in the conveying efficiency of the second conveyor belt 54 due to long-term operation;

[0082] In addition, when the screw thread of the adjusting rod 61 is threadedly connected to the fixed seat 62 on the frame main body 10, by rotating the adjusting rod 61, the support plate 55 is driven to move on the frame main body 10 through the axial movement of the adjusting rod 61, so as to realize the tensioning of the second conveyor belt 54.

[0083] In some examples of the present utility model, as Figure 6 shown, a guiding block 41 is provided on the frame main body 10;

[0084] A guiding groove 42 is provided in the guiding block 41;

[0085] Among them, a guiding rod 22 which is slidably located in the guiding groove 42 is provided on the buffer platform 20;

[0086] Specifically, the guiding block 41 can be composed of multiple block plates, and the multiple block plates form the guiding groove 42. The arrangement of the guiding groove 42 matches the moving track of the second conveyor belt 54, that is, the upper and lower parts of the guiding groove 42 are angular structures, and the middle part is a vertical strip structure;

[0087] On the one hand, the buffer platform 20 is movably connected between a pair of second conveyor belts 54, for example, rotatably connected. On the other hand, the guiding rod 22 on the buffer platform 20 is slidably located in the guiding groove 42 for guiding, so that when the buffer platform 20 rotates with the second conveyor belt 54, the angle can be flexibly changed, ensuring that the conveying roller 23 is always in a horizontal state and avoiding the situation of shaking of the buffer platform 20 during the movement process.

[0088] In some examples of the present utility model, as Figure 5 shown, the driving component 30 includes:

[0089] A driving wheel 31, fixedly installed at the output end of the driving motor;

[0090] A driven wheel 33, coaxially connected with one of the guide wheels;

[0091] Among them, the driving wheel 31 and the driven wheel 33 are connected by a first conveyor belt 32, and a pair of longitudinally adjacent guide wheels or the driving wheel 31 are connected by a transmission rod 34;

[0092] Specifically, the driving motor is fixed on the frame main body 10, and a servo motor can be adopted;

[0093] The driven wheel 33 and one of the guide wheels are coaxially connected by means of a flat key. For example, the driven wheel 33 is fixedly connected to the shaft where the second guide wheel 52 is located, so that the driven wheel 33 can rotate with the second guide wheel 52;

[0094] After the driving motor starts, the driving wheel 31 drives the driven wheel 33 to rotate through the first conveyor belt 32, so that the second guide wheel 52 coaxial with the driven wheel 33 rotates, transmits the power to the transmission component 50, and makes the second conveyor belt 54 rotate;

[0095] A pair of longitudinally adjacent guide wheels or the driving wheel 31 are connected by a transmission rod 34. For example, the first guide wheels 51 on adjacent longitudinal sides are connected by a transmission rod 34, or the longitudinally adjacent driving wheels 31 are connected by a transmission rod 34, so that the power is transmitted between a pair of guide wheel groups, and the synchronous rotation of a pair of second conveyor belts 54 under a single power source is realized, and the structure is more compact.

[0096] In some examples of the present utility model, sensors for identifying the upper box body of the identification buffer platform 20 are provided at both the box inlet 11 and the box outlet 12;

[0097] The sensor transmits the induction signal to the controller, and the controller controls the action of the driving motor;

[0098] Specifically, the sensor can be an optoelectronic sensor or a position sensor; the controller controls the action of the motor, and the actions include starting and stopping, forward and reverse rotation;

[0099] This example can identify the box body on the buffer platform 20 through the sensor and achieve precise control, so that the box body enters the buffer platform 20 from the box inlet 11, and can not only be buffered but also be transported out from the box outlet 12 as the second conveyor belt 54 rotates.

[0100] In some examples of the present utility model, as Figure 7 shown, the buffer platform 20 further includes:

[0101] A pair of seat plates 21 are arranged longitudinally, and a connecting block 24 is rotatably arranged at the upper end of each seat plate 21, and the connecting block 24 is fixed on the second conveyor belt 54;

[0102] Among them, a plurality of conveying rollers 23 are rotatably arranged at intervals transversely between the pair of seat plates 21;

[0103] Specifically, the lower ends of the pair of seat plates 21 are connected by a plurality of conveying rollers 23, the upper ends can be connected by a connecting rod 25, and a channel for laterally conveying the box body is formed in the middle;

[0104] Each seat plate 21 is connected to the connecting block 24 through a bearing, and the connecting block 24 is fixed on the second conveyor belt 54;

[0105] The end sides of two adjacent conveying rollers 23 can be connected by a conveyor belt, and one of the conveying rollers 23 is connected to a motor with a mobile power source, so as to realize the same-speed and same-direction rotation of the plurality of conveying rollers 23.

[0106] The exemplary embodiments of the recycling buffer conveyor proposed by the present utility model have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present utility model can be made without exceeding the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims.

Claims

1. Loop cache conveyor, characterized in that, Comprising: A frame body (10) with an inlet opening (11) and an outlet opening (12) provided at its two transverse ends respectively; A transmission component (50) located inside the frame body (10), comprising: A pair of second conveyor belts (54) arranged longitudinally, forming a closed loop and connected to a driving component (30) for synchronous rotation; A plurality of buffer platforms (20) movably connected between the pair of second conveyor belts (54) and arranged at intervals along the length of the second conveyor belts (54); Each buffer platform (20) is provided with conveying rollers (23) capable of receiving and transferring the boxes and driving the boxes to move horizontally; Wherein, when the pair of second conveyor belts (54) are driven to rotate synchronously, the conveying rollers (23) always remain in a horizontal state.

2. The circulating buffer conveyor according to claim 1, wherein The second conveyor belt (54) is wound around the outside of a guide wheel group, so that the upper and lower parts of the second conveyor belt (54) have an angular motion trajectory and the middle part has a vertical motion trajectory.

3. The circulating buffer conveyor according to claim 2, wherein The transmission component (50) further comprises: A pair of guide wheel groups arranged longitudinally, each guide wheel group comprising a plurality of guide wheels; Wherein, the second conveyor belt (54) is wound around the outside of the plurality of guide wheels, and the pair of guide wheel groups rotate synchronously.

4. The circulating buffer conveyor according to claim 3, wherein Each guide wheel group comprises a first guide wheel (51), a second guide wheel (52), and a third guide wheel (53) arranged symmetrically up and down; The first guide wheel (51), the second guide wheel (52), and the third guide wheel (53) are respectively rotatably installed on a support plate (55); One of the support plates (55) is slidably connected up and down to the frame body (10) through an adjusting component and is positioned.

5. The circulating buffer conveyor according to claim 4, wherein The adjusting component comprises: An adjusting rod (61) threadedly connected to a fixed seat (62) on the frame body (10) and rotatably connected to the support plate (55) at its lower end; Wherein, the support plate (55) is installed on the frame body (10) through a linear slide rail.

6. The circulating buffer conveyor according to any one of claims 1 to 5, wherein The frame body (10) is provided with a guide block (41); The guide block (41) is provided with a guide groove (42) matching the movement trajectory of the second conveyor belt (54); Wherein, the buffer platform (20) is provided with a guide rod (22) slidably located in the guide groove (42).

7. The circulating buffer conveyor according to any one of claims 3 to 5, wherein The driving component (30) comprises: A driving wheel (31) fixedly installed at the output end of a driving motor; A driven wheel (33) coaxially connected to one of the guide wheels; Wherein, the driving wheel (31) and the driven wheel (33) are connected by a first conveyor belt (32), and a pair of longitudinally adjacent guide wheels or the driving wheel (31) are connected by a transmission rod (34).

8. The circulating buffer conveyor according to claim 7, wherein Sensors for identifying the boxes on the buffer platform (20) are provided at both the inlet opening (11) and the outlet opening (12); The sensor transmits the sensed signal to the controller, and the controller controls the operation of the drive motor.

9. The circulating buffer conveyor according to claim 6, characterized in that the buffer platform (20) further comprises: a pair of seat plates (21) arranged longitudinally, with a connecting block (24) rotatably mounted at the upper end of each seat plate (21), and the connecting block (24) is fixed to the second conveyor belt (54); wherein, a plurality of conveying rollers (23) are rotatably arranged at intervals transversely between the pair of seat plates (21).

10. The circulating buffer conveyor according to any one of claims 1 to 5, characterized in that the six sides of the frame body (10) are enclosed by plates; slidingly mounted on the frame body (10) and locked and fixed on the transverse plates, and respectively provided with an inlet (11) and an outlet (12) for the box.

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