Tray conveying system

Abstract

The utility model relates to the technical field of conveying, and provides a tray conveying system which comprises a power automatic butt joint device, a tray power input end, a tray movable end and a tray body. The tray body comprises a tray frame, a track and a sealing plate; a tray power input end is mounted on one side of the tray frame, and a tray movable end is mounted on the other side of the tray frame; the movable end of the tray is embedded in the track of the tray body; the power automatic docking device is docked with the power input end of the tray; a first carrier roller is arranged at the power input end of the tray, and a second carrier roller is arranged at the movable end of the tray; the tray movable end comprises supporting rollers, a movable end body and a sliding assembly. The tray movable end can slide in the track of the tray body through the sliding assembly. The distance adjustment of the movable end of the tray is achieved through the sliding assembly, and the stability is improved; each part of the device adopts a sealing structure, so that the device can adapt to various high-dust and high-temperature environments.

Description

Technical Field

[0001] The present application relates to the field of conveying technology, and in particular to a pallet conveying system. Background Art

[0002] Conveyors are used to move objects between different workstations in a factory, and usually include belt or chain conveyor tracks. The conveyor track may be recessed in a channel with vertical side surfaces. Alternatively, the conveyor device may be located on the horizontal upper surface of the channel or arranged in some other way. The objects being conveyed are arranged in a slidable manner relative to the conveyor track directly or through a support device also called a tray.

[0003] The pallets are transported by conveyors within the different workstations. The conveyors can be adapted to different environments. In some cases, the conveyors are set up in clean environments, such as environments where objects are assembled from prefabricated parts and no machining is performed. In such environments, the specifications of the conveyor tracks and pallets are low.

[0004] The manufacturing process of many products often involves various processes such as painting, vulcanization, and weighing, because products have different specifications and sizes, and are distinguished by diameter and length. When various products are undergoing each process, they need to correspond to different tooling pallets to carry the products to meet the process requirements. At the same time, in the painting, vulcanization and other links, the products are also required to rotate with process power, which requires regular manual participation in high-dust and high-temperature environments. For some industries with different types of production, such as those that include production in clean environments and harsh environments, different processes need to be set for products of different specifications in order to support all types of conveyor chains and complex environments. However, the current pallet conveying system is not compatible with products of different specifications, resulting in the need for manual reciprocating replacement during the conveying process, resulting in cumbersome processes and low work efficiency; at the same time, the current conveying system cannot meet the function of rolling products in specific processes, and often requires manual participation, and cannot automatically input and cut off power. Utility Model Content

[0005] The present application provides a pallet conveying system to solve the problem that the pallet conveying system in the prior art is not compatible with products of different specifications, resulting in the need for manual reciprocating replacement during the conveying process, causing cumbersome procedures and low work efficiency. At the same time, it solves the problem that the current conveying system cannot meet the function of rolling products in specific procedures, often requires manual participation, and cannot automatically input and cut off power.

[0006] The present application provides a pallet conveying system, the pallet conveying system comprising:

[0007] A powered automatic docking device, a powered input end of a pallet, a movable end of a pallet, and a pallet body;

[0008] The pallet body comprises a pallet frame, a track and a sealing plate; a pallet power input end is installed on one side of the pallet frame, and a pallet movable end is installed on the other side of the pallet frame;

[0009] The movable end of the tray is embedded in the track of the tray body, and the movable end of the tray is limited by a sealing plate on the upper part of the track;

[0010] The power automatic docking device is docked with the power input end of the tray;

[0011] A first roller is provided on the power input end of the tray, and a second roller is provided on the movable end of the tray, and the first roller and the second roller cooperate with each other to support the product; wherein the first roller is used to drive the product to rotate, and the first roller is driven by a sprocket group on the power input end of the tray;

[0012] The movable end of the tray includes a supporting roller, a movable end body and a sliding assembly; the sliding assembly is connected to the movable end body and the supporting roller;

[0013] The sliding assembly is embedded in the track of the tray body, and the movable end of the tray can slide in the track of the tray body through the sliding assembly.

[0014] In some possible implementations, the sliding assembly includes a top support plate, a bottom connecting plate, a sealing plate guide wheel, an adapter plate, a slider, and a limiting guide wheel; the upper portion of the top support plate is connected to the movable end body, the bottom connecting plate and the adapter plate are installed on the lower portion of the top support plate, the bottom connecting plate is installed on both sides of the top support plate, the sealing plate guide wheel is arranged on the bottom connecting plate, the adapter plate is installed in the middle position of the top support plate, the slider is fixed under the adapter plate, and the limiting guide wheels are installed on both sides of the side of the adapter plate.

[0015] In some possible implementations, the power input end of the pallet is composed of a first roller, a driven sprocket, a chain, a tensioner, a driving sprocket and a power input end body; the rear end of the shaft of the first roller is connected to the driven sprocket, and the driven sprocket is meshed with the chain; the tensioner is meshed with the chain; a rotating shaft is provided in the middle position of the power input end body, the rotating shaft is meshed with the chain, and the driving sprocket is installed on the rotating shaft; the tensioner is provided in the middle of the chain to adjust the tightness of the chain.

[0016] In some possible implementations, a sealing plate is provided on the top of the track, and the sliding assembly passes through the sealing plate.

[0017] In some possible implementations, the power automatic docking device is composed of a power device body, a stroke cylinder, a clamping cylinder, a motor reducer, and a power output end;

[0018] The stroke cylinder is arranged on the power device body;

[0019] The motor reducer is arranged on a slide, the motor reducer is connected to the stroke cylinder through the slide, the output shaft of the motor reducer is connected to the power output end through a universal coupling, and the power output end is connected to the clamping cylinder through a guide rod.

[0020] In some possible implementations, the power output end is connected to the power input end of the pallet through a half-coupling; one end of the half-coupling of the power output end is connected to the half-coupling of the power input end of the pallet; wherein the half-coupling of the power output end and the half-coupling of the power input end of the pallet are meshed with each other.

[0021] In some possible implementations, the half coupling at the power output end is conical, and the half coupling at the power input end of the tray is circular.

[0022] In some possible implementations, the other end of the half coupling at the power output end is connected to a universal joint, which can be displaced in all directions; the universal joint is connected to the motor reducer, and the universal joint is used to drive the power output end to rotate.

[0023] From the above content, it can be seen that the present application provides a pallet conveying system, which includes: a power automatic docking device, a pallet power input end, a pallet movable end and a pallet body; the pallet body includes a pallet frame, a track and a sealing plate; the pallet power input end is installed on one side of the pallet frame, and the pallet movable end is installed on the other side of the pallet frame; the pallet movable end is embedded in the inside of the track of the pallet body; the power automatic docking device docks with the pallet power input end; a first roller is provided on the pallet power input end, and a second roller is provided on the pallet movable end; the pallet movable end includes supporting rollers, a movable end body and a sliding assembly; the pallet movable end can slide in the track of the pallet body through the sliding assembly. In the present application, the sliding assembly is used to achieve the distance adjustment of the movable end of the pallet to improve stability; in the present application, each part adopts a sealing structure, which can adapt to various high-dust and high-temperature environments. The power input and power disconnection of the present application can be completed automatically, effectively reducing manual participation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A schematic diagram of a pallet conveying system provided in an embodiment of the present application;

[0026] Figure 2 A top view of the tray body provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of a powered automatic docking device provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of a movable end of a tray provided in an embodiment of the present application;

[0029] Figure 5 Schematic diagram of the sliding assembly provided in the embodiment of the present application Figure 1 ;

[0030] Figure 6 Schematic diagram of the sliding assembly provided in the embodiment of the present application Figure 2 ;

[0031] Figure 7 Schematic diagram of the power input terminal of the tray provided in an embodiment of the present application.

[0032] Illustrations: 1-power automatic docking device; 2-pallet power input end; 3-pallet movable end; 4-pallet body; 11-power device body; 12-stroke cylinder; 13-pressing cylinder; 14-motor reducer; 15-power output end; 21-first roller; 22-driven sprocket; 23-chain; 24-tensioning wheel; 25-driving sprocket; 26-power input end body; 31-support roller; 32-movable end body; 33-sliding assembly; 331-bottom connecting plate; 332-top supporting plate; 333-sealing plate guide wheel; 3321-slider; 3322-adapter plate; 3323-limiting guide wheel; 41-pallet frame, 42-track; 43-sealing plate. DETAILED DESCRIPTION

[0033] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following embodiments do not represent all embodiments consistent with the present application.

[0034] Conveyors are used to move objects between different workstations in a factory, and usually include belt or chain conveyor tracks. The conveyor track may be recessed in a channel with vertical side surfaces. Alternatively, the conveyor device may be located on the horizontal upper surface of the channel or arranged in some other way. The objects being conveyed are arranged in a slidable manner relative to the conveyor track directly or through a support device also called a tray.

[0035] The pallets are transported by conveyors within the different workstations. The conveyors can be adapted to different environments. In some cases, the conveyors are set up in clean environments, such as environments where objects are assembled from prefabricated parts and no machining is performed. In such environments, the specifications of the conveyor tracks and pallets are low.

[0036] The manufacturing process of many products often involves various processes such as painting, vulcanization, and weighing, because products have different specifications and sizes, and are distinguished by diameter and length. When various products are undergoing each process, they need to correspond to different tooling pallets to carry the products to meet the process requirements. At the same time, in the painting, vulcanization and other links, the products are also required to rotate with process power, which requires regular manual participation in high-dust and high-temperature environments. For some industries with different types of production, such as those that include production in clean environments and harsh environments, different processes need to be set for products of different specifications in order to support all types of conveyor chains and complex environments. However, the current pallet conveying system is not compatible with products of different specifications, resulting in the need for manual reciprocating replacement during the conveying process, resulting in cumbersome processes and low work efficiency; at the same time, the current conveying system cannot meet the function of rolling products in specific processes, and often requires manual participation, and cannot automatically input and cut off power.

[0037] Based on this, the present application provides a pallet conveying system, which can be compatible with products of different specifications and avoid reciprocating replacement. At the same time, it is equipped with an external power automatic docking device, which can realize automatic power input and power adjustment of the product according to the requirements of different workstation processes, and can meet various process demand scenarios.

[0038] In some embodiments, Figures 1 to 7 As shown, the present application provides a pallet conveying system, which includes:

[0039] A powered automatic docking device 1, a tray power input terminal 2, a tray movable terminal 3 and a tray body 4; the tray body 4 includes a tray frame 41, a track 42 and a sealing plate 43; the tray power input terminal 2 is installed on one side of the tray frame 41, and the tray movable terminal 3 is installed on the other side of the tray frame 41; the tray movable terminal 3 is embedded in the track 42 of the tray body 4, and the tray movable terminal 3 is limited by the sealing plate 43 on the upper part of the track 42.

[0040] The power automatic docking device 1 is docked with the power input end 2 of the pallet, and the power automatic docking device 1 provides power for the pallet conveying system; a first roller 21 is provided on the power input end 2 of the pallet, and a second roller is provided on the movable end 3 of the pallet, and the first roller 21 and the second roller cooperate with each other to support the product; wherein the first roller 21 is used to drive the product to rotate, and the first roller 21 is driven by the sprocket group on the power input end 2 of the pallet; wherein the sprocket group on the power input end 2 of the pallet includes a sprocket, a chain and a tensioner, and the structure of the sprocket group can be adjusted according to actual conditions; the movable end 3 of the pallet includes a supporting roller 31, a movable end body 32 and a sliding assembly 33; the sliding assembly 33 is connected to the movable end body 32 and the supporting roller 31; the sliding assembly 33 is embedded in the track 42 of the pallet body 4, and the movable end 3 of the pallet can slide in the track 42 of the pallet body 4 through the sliding assembly 33.

[0041] When power input is required, the power automatic docking device 1 automatically completes docking and calibration with the tray power input end 2 during operation to provide power. The present application is equipped with an external power input device, namely the power automatic docking device 1, to realize the functions of automatic power input, cutting off and speed regulation.

[0042] like Figure 3 As shown, the external power automatic docking device 1 realizes the power input adjustment and power cut-off functions of the pallet conveying system, and the pallet movable end 3 realizes compatibility with products of various specifications. The pallet power input end 2 is installed on one side of the pallet frame 41 of the pallet body 4, and is connected by bolts. The pallet movable end 3 is installed on the other side of the pallet frame 41, and the pallet movable end 3 is embedded in the track 42 and limited by the sealing plate 43 on the upper part of the track 42. The power automatic docking device 1 is arranged externally and is set according to the required workstation.

[0043] like Figure 4 As shown, the power input end 2 of the pallet and the movable end 3 of the pallet are both provided with two sets of rollers, which are arranged on the left and right sides of the power input end 2 of the pallet and the movable end 3 of the pallet to form an angle to support the product.

[0044] like Figure 2 As shown, the pallet body 4 is composed of a pallet frame 41, a track 42 and a sealing plate 43. A support leg is provided under the pallet frame 41 to realize placement and temporary parking in any production area during the production process. It is worth noting that in order to cope with the impact of complex working conditions on the pallet track, a sealing plate 43 is provided on the top of the track 42 to effectively block the erosion of the track 42 by high dust and atomized environment.

[0045] like Figures 5 and 6 , in some embodiments, the sliding assembly 33 is connected to the movable end body 32 and the supporting roller 31;

[0046] The sliding assembly 33 is embedded in the track 42 of the tray body 4 , and the movable end 3 of the tray can slide in the track 42 of the tray body 4 through the sliding assembly 33 .

[0047] The support rollers 31 at both ends of the movable end 3 of the tray complete the support and transmission of the product. The core component is the sliding component 33. The sliding component 33 is set at the bottom of the movable end 3 of the tray to achieve the distance adjustment of the tray body 4. A wear-resistant copper plate is installed at the bottom of the sliding component 33 as a support plate of the sliding component 33. Support rollers 31 are installed on both sides of the sliding component 33 to ensure the stability of sliding and support on the one hand and reduce the movement resistance on the other hand. Before the product is loaded on the vehicle, the corresponding product is loaded by gently pulling the movable end 3 of the tray.

[0048] At the same time, in order to achieve distance adjustment, the copper slider 3321 at the bottom of the sliding component 33 of the movable end 3 of the pallet can be connected through a connecting plate, and guide wheels are set on both sides, which pass through the sealing plate 43, so that the movable end 3 of the pallet can achieve stepless distance adjustment and be compatible with different product specifications, while also being able to be well sealed and adapt to complex working conditions.

[0049] The sliding assembly 33 is embedded in the track 42 of the tray body 4, and serves as a key component for adjusting the distance of the movable end 3 of the tray, so that the movable end 3 of the tray can slide easily on the track 42 of the tray body 4; the movable end body 32 and the supporting roller 31 are connected to the supporting plate of the sliding assembly 33. The movable end body 32 serves as a structural member of the movable end 3 of the tray, and is mainly used to share the weight of the carried product. The supporting roller 31 is in direct contact with the product, and the product is stably supported by the wrapping angle formed by the double-sided rollers and the product.

[0050] In some embodiments, the sliding assembly 33 includes a top support plate 332, a bottom connecting plate 331, a sealing plate guide wheel 333, an adapter plate 3322, a slider 3321, and a limiting guide wheel 3323; the upper part of the top support plate 332 is connected to the movable end body 32, the lower part of the top support plate 332 is installed with the bottom connecting plate 331 and the adapter plate 3322, the bottom connecting plate 331 is installed on both sides of the top support plate 332, the sealing plate guide wheel 333 is arranged on the bottom connecting plate 331, the adapter plate 3322 is installed in the middle position of the top support plate 332, the slider 3321 is fixed under the adapter plate 3322, and the limiting guide wheels 3323 are installed on both sides of the side of the adapter plate 3322.

[0051] By providing the sliding block 3321 made of copper alloy, the sliding assembly 33 can be made wear-resistant and the sliding resistance can be effectively reduced, so that the sliding assembly 33 can slide smoothly in the track 42 of the tray body 4. Stainless steel rollers are installed on both sides of the bottom connecting plate 331. When adjusting the distance of the tray body 4, the rollers on both sides can roll on the side tracks, which greatly reduces friction and can be easily adjusted manually.

[0052] like Figure 7 As shown, in some embodiments, the power input end 2 of the pallet is composed of a first roller 21, a driven sprocket 22, a chain 23, a tensioner 24, a driving sprocket 25 and a power input end body 26; in this embodiment, the driven sprocket 22, the chain 23, the tensioner 24, and the driving sprocket 25 form a sprocket group; the rear end of the shaft of the first roller 21 is connected to the driven sprocket 22, and the driven sprocket 22 and the chain 23 are meshed; the tensioner 24 is meshed with the chain 23; a rotating shaft is arranged in the middle position of the power input end body 26, the rotating shaft is meshed with the chain 23, and the driving sprocket 25 is installed on the rotating shaft; a tensioner 24 is arranged in the middle of the chain 23 for adjusting the tightness of the chain 23.

[0053] The two sides of the power input end body 26 are arranged symmetrically. The rear end of the shaft of the first roller 21 is connected to the driven sprocket 22, and the driven sprocket 22 and the chain 23 are meshed, so that the power of the driving sprocket 25 is transmitted to the first roller 21. The driving sprocket 25 is installed on the rotating shaft in the middle of the power input end body 26, and the power input is realized by the reversing machine and coupling on the power input end body 26, and the power is transmitted to the rotating shaft in the middle of the power input end body 26, thereby driving the first rollers 21 on both sides to rotate, thereby driving the product. A tensioner 24 is set in the middle of the chain 23, mainly to adjust the tightness of the chain 23.

[0054] In some embodiments, a sealing plate 43 is disposed on the top of the track 42 , and the sliding assembly 33 passes through the sealing plate 43 .

[0055] In some embodiments, the power automatic docking device 1 is composed of a power device body 11, a stroke cylinder 12, a clamping cylinder 13, a motor reducer 14 and a power output end 15;

[0056] The stroke cylinder 12 is arranged on the power device body 11;

[0057] The motor reducer 14 is arranged on the slide, the motor reducer 14 is connected to the stroke cylinder 12 through the slide, the output shaft of the motor reducer 14 is connected to the power output end 15 through a universal coupling, and the power output end 15 is connected to the clamping cylinder 13 through a guide rod.

[0058] The power device body 11 serves as the support of the entire mechanism. The bottom of the legs of the power device body 11 is designed with a distance adjustment nut, which can adjust the installation height up and down to accommodate height errors. The stroke cylinder 12 is connected to the slide. By controlling the stroke cylinder 12, the plane displacement of the slide is achieved, and the stroke control is realized for the automatic docking of the entire device. When the stroke cylinder 12 sends an in-position signal, the clamping cylinder 13 connected to the guide rod generates a forward clamping force to prevent the power automatic docking device 1 from being disengaged due to the lateral force of the pallet.

[0059] In some embodiments, the power output end 15 is connected to the pallet power input end 2 through a half coupling; one end of the half coupling of the power output end 15 is connected to the half coupling of the pallet power input end 2; wherein the half coupling of the power output end 15 and the half coupling of the pallet power input end 2 are meshed with each other to achieve the need of power transmission.

[0060] In some embodiments, the half coupling of the power output end 15 is conical, and the half coupling of the power input end 2 of the tray is circular.

[0061] In some embodiments, the other end of the half coupling of the power output end 15 is connected to a universal joint, which can be displaced in all directions; the universal joint is connected to the motor reducer 14, and the universal joint is used to drive the power output end 15 to rotate.

[0062] The power output end 15 is connected with a conical connection structure, and the small end is connected to the large end by the conical half coupling and the circular half coupling of the power input end 2 of the pallet, so as to achieve compatibility with the parking error of the pallet body 4. At the same time, the rear end of the conical half coupling of the power output end 15 is connected with a universal joint, which can be displaced in all directions, and then connected to the motor reducer 14 after the universal joint, so as to solve the problem that the motor reducer 14 and the power output end 15 cannot transmit due to different axes.

[0063] The present application adopts adjustable roller support, which is compatible with products of different specifications. It makes the tooling uniform and easy to operate. The existing technology needs to process different support shafts according to different product specifications and lengths, which cannot solve the problems of complicated process and multiple product tooling. The pallet conveying system provided by the present application is provided with a placement leg, which can place products at any position in the production area and has high mobility. The existing solution needs to install a rail car at a specific station, which requires a large site space. At the same time, the rail car can only be used in a position with a track, and its use is very limited. The power input and power disconnection of the present application can be completed automatically, effectively reducing manual participation. The power input and power disconnection of the existing solution need to rely on manual connection bolts, which increases the workload and labor risks. The present application can be matched with an automatic cruise car to liberate driving and greatly reduce handling. The existing solution requires manual operation of driving and handling in and out of the station, which increases the number of reverse transportation and greatly increases the probability of labor risks. The transmission parts of the present application adopt a sealed structure and can adapt to various high-dust environments. The existing solution cannot adapt to different application environments. For example, paint mist will adhere to the track or the internal transmission end and other parts, which is difficult to clean. In the long run, the service life will be greatly reduced.

[0064] The working principle of the pallet conveying system provided in this application is:

[0065] First determine the length of the product, then adjust the position of the movable end 3 of the pallet according to the length of the product. After adjustment, insert the ball head locking pin, and then hoist the product onto the pallet body 4. The product is supported by the four rollers on the power input end 2 of the pallet and the movable end 3 of the pallet on both sides to achieve the purpose of carrying the product.

[0066] The rotation of the product mainly relies on the two first rollers 21 at the power input end 2 of the pallet, and the friction between the first rollers 21 and the product is used to drive the product to rotate. The first roller 21 at the power input end 2 of the pallet is driven by the set sprocket group. The power input of the pallet body 4 relies on the external power automatic docking device 1. When the product needs to rotate, a control signal is sent to the control terminal. First, the stroke cylinder 12 is actuated to pull the slide connected to the stroke cylinder 12, driving the motor reducer 14 on the slide and the power output end 15 forward to dock, and then the clamping cylinder 13 is actuated to drive the conical half-coupling of the power output end 15 into the half-coupling of the power input end 2 of the pallet through the four guide shafts at the front end, completing the docking of the power input, and finally the motor is started to drive the product to rotate.

[0067] It can be seen from the above embodiments that the present application provides a pallet conveying system, which includes: a power automatic docking device, a pallet power input end, a pallet movable end and a pallet body; the pallet body includes a pallet frame, a track and a sealing plate; the pallet power input end is installed on one side of the pallet frame, and the pallet movable end is installed on the other side of the pallet frame; the pallet movable end is embedded in the track of the pallet body; the power automatic docking device docks with the pallet power input end; a first roller is provided on the pallet power input end, and a second roller is provided on the pallet movable end; the pallet movable end includes supporting rollers, a movable end body and a sliding assembly; the pallet movable end can slide in the track of the pallet body through the sliding assembly. In the present application, the sliding assembly is used to achieve the distance adjustment of the movable end of the pallet to improve stability; in the present application, each part adopts a sealing structure, which can adapt to various high-dust and high-temperature environments. The power input and power disconnection of the present application can be completed automatically, effectively reducing manual participation.

[0068] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A pallet conveying system, characterized in that: The pallet conveying system comprises: A powered automatic docking device (1), a tray power input end (2), a tray movable end (3), and a tray body (4); The pallet body (4) comprises a pallet frame (41), a track (42) and a sealing plate (43); a pallet power input end (2) is mounted on one side of the pallet frame (41), and a pallet movable end (3) is mounted on the other side of the pallet frame (41); The movable end (3) of the tray is embedded in the track (42) of the tray body (4), and the movable end (3) of the tray is limited by a sealing plate (43) on the upper part of the track (42); The power automatic docking device (1) is docked with the power input end (2) of the tray; A first roller is provided on the power input end (2) of the pallet, and a second roller is provided on the movable end (3) of the pallet, wherein the first roller and the second roller cooperate with each other to support the product; wherein the first roller is used to drive the product to rotate, and the first roller is driven by a sprocket group on the power input end (2) of the pallet; The movable end (3) of the tray comprises a supporting roller (31), a movable end body (32) and a sliding assembly (33); the sliding assembly (33) is connected to the movable end body (32) and the supporting roller (31); The sliding assembly (33) is embedded in the track (42) of the tray body (4), and the movable end (3) of the tray can slide in the track (42) of the tray body (4) through the sliding assembly (33).

2. The pallet conveying system according to claim 1, characterized in that: The sliding assembly (33) comprises a top supporting plate (332), a bottom connecting plate (331), a sealing plate guide wheel (333), an adapter plate (3322), a slider (3321), and a limiting guide wheel (3323); the top supporting plate (332) is connected to the movable end body (32) at its upper portion, the bottom connecting plate (331) and the adapter plate (3322) are mounted at the lower portion of the top supporting plate (332), the bottom connecting plate (331) is mounted on both sides of the top supporting plate (332), the sealing plate guide wheel (333) is arranged on the bottom connecting plate (331), the adapter plate (3322) is mounted at a middle position of the top supporting plate (332), the slider (3321) is fixed under the adapter plate (3322), and the limiting guide wheels (3323) are mounted on both sides of the side of the adapter plate (3322).

3. The pallet conveying system according to claim 1, characterized in that: The power input end (2) of the tray is composed of a first roller (21), a driven sprocket (22), a chain (23), a tensioner (24), a driving sprocket (25) and a power input end body (26); the rear end of the shaft of the first roller (21) is connected to the driven sprocket (22), and the driven sprocket (22) and the chain (23) are meshed; the tensioner (24) is meshed with the chain (23); a rotating shaft is arranged in the middle of the power input end body (26), the rotating shaft is meshed with the chain (23), and the driving sprocket (25) is mounted on the rotating shaft; the tensioner (24) is arranged in the middle of the chain (23) for adjusting the tightness of the chain (23).

4. The pallet conveying system according to claim 3, characterized in that: A sealing plate (43) is provided on the top of the track (42), and the sliding assembly (33) passes through the sealing plate (43).

5. The pallet conveying system according to claim 1, characterized in that: The power automatic docking device (1) is composed of a power device body (11), a stroke cylinder (12), a clamping cylinder (13), a motor reducer (14) and a power output end (15); The stroke cylinder (12) is arranged on the power device body (11); The motor reducer (14) is arranged on a slide, the motor reducer (14) is connected to the stroke cylinder (12) via the slide, the output shaft of the motor reducer (14) is connected to the power output end (15) via a universal coupling, and the power output end (15) is connected to the clamping cylinder (13) via a guide rod.

6. The pallet conveying system according to claim 5, characterized in that: The power output end (15) is connected to the power input end (2) of the pallet via a half coupling; one end of the half coupling of the power output end (15) is connected to the half coupling of the power input end (2) of the pallet; wherein the half coupling of the power output end (15) and the half coupling of the power input end (2) of the pallet are meshed with each other.

7. The pallet conveying system according to claim 6, characterized in that: The half coupling of the power output end (15) is conical, and the half coupling of the power input end (2) of the tray is circular.

8. The pallet conveying system according to claim 7, characterized in that: The other end of the half coupling of the power output end (15) is connected to a universal joint, and the universal joint can be displaced in all directions; the universal joint is connected to the motor reducer (14), and the universal joint is used to drive the power output end (15) to rotate.

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