An automated single piece plastic pallet conveying structure

Abstract

The present application relates to the technical field of conveying structure, and particularly relates to an automatic one-by-one conveying structure of plastic pallets, which comprises a first conveying belt, a second conveying belt and a U-shaped frame, the first conveying belt and the second conveying belt are both used for conveying plastic pallets, the U-shaped frame is located below the first conveying belt, and guide grooves are formed on the front and rear sidewalls of the U-shaped frame; the special conveying structure is designed, so that the first conveying belt and the second conveying belt do not need to be frequently started and stopped, thereby reducing the fatigue damage phenomenon of the equipment; the vertical movement of the second conveying belt is used to make the end of the second conveying belt higher than the first conveying belt, so that the second conveying belt blocks the pallets on the first conveying belt, thereby realizing the one-by-one conveying work of the pallets; this structure does not need to set other structure for the blocking of the pallets, and only needs to use the second conveying belt, so that the second conveying belt realizes the conveying function and the blocking function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying structure, and particularly relates to a plastic tray automatic single conveying structure. BACKGROUND

[0002] With the rapid development of industrial automation, the efficiency requirement of logistics and warehousing system is increasing. In the field of modern warehousing and logistics, plastic trays, as an important bearing tool, play a crucial role in the process of goods storage and handling.

[0003] The plastic tray is generally shaped by injection molding, and then cooled, trimmed, and painted to obtain a finished tray. Since the tray needs to be processed by multiple processes and different processing equipment, the tray needs to be transferred by a conveying structure. In the traditional way, a single conveying belt is generally used for conveying. After the tray is conveyed to the specified position, the conveying belt is stopped, and the tray is transferred to the equipment by manual or mechanical arm. Then the conveying belt is started again and the next tray is conveyed to the specified position. When using this method, the conveying belt needs to be frequently opened and closed, which can easily cause fatigue damage to the equipment. In addition, when conveying the tray, the adjacent two trays need to be separated in advance, otherwise when one tray is taken away, the adjacent tray will be disturbed, which can cause the tray to be placed inclined or fall off, which causes inconvenience in the tray conveying work. SUMMARY

[0004] To solve the above technical problems, the present application provides a plastic tray automatic single conveying structure, which adopts the following specific technical scheme:

[0005] According to the first aspect of the present application, a plastic tray automatic single conveying structure is provided, which comprises a first conveying belt, a second conveying belt and a U-shaped frame. The first conveying belt and the second conveying belt are used for conveying plastic trays. The U-shaped frame is located below the first conveying belt. Guide grooves are formed on the front and rear sidewalls of the U-shaped frame. The guide grooves are composed of a horizontal part and a downward inclined inclined part. The inclined part is located on the side close to the first conveying belt on the U-shaped frame. A sliding column is slidably arranged in the guide groove. A vertical plate is vertically arranged on the sliding column.

[0006] The second conveying belt is provided with two transmission rollers for driving the second conveying belt to run. The front and rear sides of the top of the U-shaped frame are vertically slidably provided with a moving frame. The transmission rollers are rotatably installed on the moving frame. The vertical plates are transversely slidably installed on the sidewalls of the moving frame. A baffle plate is arranged between the two vertical plates for blocking the plastic trays on the second conveying belt.

[0007] When the first conveying belt conveys the plastic tray to the second conveying belt, the first conveying belt and the second conveying belt are on the same horizontal plane, when the plastic tray is conveyed on the second conveying belt, the second conveying belt moves in the vertical direction, and the end of the second conveying belt blocks the plastic tray on the first conveying belt, and a moving frame is provided with a motor for providing power for the second conveying belt and the transmission roller.

[0008] Further, the U-shaped frame is provided with a pushing unit for providing a constant lateral thrust to the vertical plate.

[0009] The pushing unit comprises a horizontal cylinder inside the U-shaped frame and a fixing frame, the horizontal cylinder is fixed on the U-shaped frame through the fixing frame, two pistons are slidably arranged in the horizontal cylinder, an oil inlet pipe and an oil discharge pressure regulating valve are communicated in the middle of the horizontal cylinder, and the oil inlet pipe and the oil discharge pressure regulating valve are located between the two pistons.

[0010] The transmission unit is connected with the piston, when the piston moves in the horizontal cylinder due to hydraulic action, the piston pushes the vertical plate to move laterally through the transmission unit.

[0011] Further, the transmission unit comprises two first sprockets and a second sprocket rotatably installed on the side wall of the U-shaped frame, the two first sprockets and the second sprocket are driven by a transmission chain, the upper surface of the transmission chain is horizontal, the upper surface of the transmission chain is vertically provided with a connecting frame, and the connecting frame is vertically and slidably installed on the vertical plate.

[0012] The middle part of the second sprocket is provided with a threaded sleeve, the threaded sleeve passes through the second sprocket and the U-shaped frame, the threaded sleeve is fixedly connected with the second sprocket, the threaded sleeve is rotatably connected with the U-shaped frame, a threaded rod is screwed into the threaded sleeve, and the threaded rod is fixedly connected with one of the pistons in the horizontal cylinder.

[0013] The cross-sectional shape of the horizontal cylinder and the shape of the piston are both square.

[0014] Further, the front and rear side walls of the U-shaped frame are provided with support frames, a sliding sleeve is slidably sleeved on the support frame, the sliding sleeve is locked between the support frame through bolts, and a first limiting plate is arranged on the sliding sleeve for limiting the lateral movement position of the connecting frame.

[0015] Further, the support frame is horizontally and slidably installed on the U-shaped frame, the sliding direction of the support frame is perpendicular to the conveying direction of the second conveying belt, the support frame is connected with the U-shaped frame through a first air cylinder, and a second limiting plate is arranged on the support frame.

[0016] The baffle is provided with a fixed groove, and a laser range finder is arranged in the fixed groove.

[0017] Further, the baffle is provided with a pressing plate.

[0018] Further, a supporting table is fixed on the pressing plate, and a second cylinder is arranged on the side wall of the baffle, and the movable end of the second cylinder is rotationally connected with the supporting table through a connecting rod.

[0019] Wherein, the pressing plate is rotationally installed on the baffle.

[0020] Further, a limiting block is fixed on the connecting rod, and the limiting block is located between the second cylinder and the supporting table, and when the pressing plate is horizontal, the limiting block is in contact with the upper surface of the pressing plate.

[0021] The beneficial effects of the present application are:

[0022] By designing a special conveying structure, the first conveying belt and the second conveying belt do not need to be frequently started and stopped, thereby reducing the fatigue damage phenomenon of the equipment; the vertical movement of the second conveying belt is used to make the end of the second conveying belt higher than the first conveying belt, so that the second conveying belt blocks the tray on the first conveying belt, thereby realizing the one-by-one conveying work of the tray. This structure does not need to set other structure for the blocking of the tray, and only needs to use the second conveying belt, so that the second conveying belt realizes the conveying function and the blocking function, and this method can effectively avoid the risk of position deviation or falling due to the mutual interference of the trays in the traditional method, thereby improving the stability and accuracy in the conveying process. This scheme simplifies the complex operation steps in the traditional conveying process, makes the whole conveying process more smooth, reduces unnecessary intermediate links, and is conducive to improving the overall work efficiency. In summary, this plastic tray automatic one-by-one conveying structure improves the production efficiency, and also considers the advantages of equipment maintenance, simple operation and safety, etc. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0024] Figure 1 is a structural schematic diagram of the present application;

[0025] Figure 2 is Figure 1 a side view structural schematic diagram;

[0026] Figure 3 is Figure 1 a structural schematic diagram of the guide groove in the middle;

[0027] Figure 4 isFigure 1 Structure diagram of the moving frame;

[0028] Figure 5 Figure 1 Structure diagram of the supporting frame;

[0029] Figure 6 Figure 1 Structure diagram of the baffle;

[0030] Figure 7 Figure 6 Structure diagram from another perspective.

[0031] Reference signs:

[0032] 1, first conveying belt; 2, second conveying belt; 3, U-shaped frame; 4, guide groove; 5, sliding column; 6, vertical plate; 7, transmission roller; 8, moving frame; 9, motor; 10, baffle; 11, horizontal cylinder; 12, fixed frame; 13, piston; 14, oil inlet pipe; 15, oil discharge pressure regulating valve; 16, first sprocket; 17, second sprocket; 18, transmission chain; 19, threaded sleeve; 20, threaded rod; 21, connecting frame; 22, supporting frame; 23, sliding sleeve; 24, first limiting plate; 25, first air cylinder; 26, second limiting plate; 27, laser range finder; 28, pressing plate; 29, supporting table; 30, second air cylinder; 31, connecting rod; 32, limiting block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0034] In the description of the present application, it should be noted that the orientation or position relationship indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The present embodiment is written in a progressive manner.​​​

[0036] As Figures 1 to 7 shown, the application of a plastic tray automation one by one conveying structure, comprising a first conveying belt 1, the second conveying belt 2 and U-shaped frame 3, the first conveying belt 1 and the second conveying belt 2 are used for conveying plastic tray, U-shaped frame 3 is located below the first conveying belt 1, U-shaped frame 3 front and back side wall are all provided with guide slot 4, guide slot 4 is composed of horizontal part and downward inclined inclined part, and the inclined part is located on the side close to the first conveying belt 1 on the U-shaped frame 3, the sliding column 5 is slidably arranged in the guide slot 4, and the vertical plate 6 is vertically arranged on the sliding column 5;

[0037] The second conveying belt 2 is provided with two transmission rollers 7 for driving the second conveying belt 2 to run, the front and back sides of the top of the U-shaped frame 3 are vertically slidably provided with moving frame 8, the transmission roller 7 is rotatably installed on the moving frame 8, the vertical plate 6 is transversely slidably installed on the side wall of the moving frame 8, and the two vertical plates 6 are provided with a baffle 10 for blocking the plastic tray on the second conveying belt 2;

[0038] When the first conveying belt 1 conveys the plastic tray to the second conveying belt 2, the first conveying belt 1 and the second conveying belt 2 are on the same horizontal plane, when the plastic tray is conveyed on the second conveying belt 2, the second conveying belt 2 moves in the vertical direction, and the end of the second conveying belt 2 blocks the plastic tray on the first conveying belt 1, and a moving frame 8 is provided with a motor 9 for providing power for the second conveying belt 2 and the transmission roller 7.

[0039] In detail, the first conveying belt 1 and the second conveying belt 2 are both horizontally arranged, which can horizontally convey the plastic tray, the U-shaped frame 3 is located below the first conveying belt 1, and the U-shaped frame 3 mainly plays a supporting role, the opening of the U-shaped frame 3 faces upward, the front and back ends of the U-shaped frame 3 are both vertically slidably inserted with moving frame 8, the second conveying belt 2 and the two transmission rollers 7 are both located between the two moving frames 8, and the transmission roller 7 is rotatably installed on the moving frame 8, so that the second conveying belt 2 and the two transmission rollers 7 can be driven to run synchronously by the motor 9, the guide slot 4 can guide the sliding column 5, thereby guiding the vertical plate 6 and the baffle 10, when the sliding column 5 slides in the inclined part of the guide slot 4, the sliding column 5 can push the moving frame 8, the transmission roller 7, the motor 9, the second conveying belt 2 and the baffle 10 to move in the vertical direction through the vertical plate 6, at this time, the second conveying belt 2 will gradually be higher than the first conveying belt 1, when the sliding column 5 moves in the horizontal part of the guide slot 4, the height position of the second conveying belt 2 does not change, and the baffle 10 moves horizontally on the surface of the second conveying belt 2.

[0040] In use, the first conveying belt 1 and the second conveying belt 2 are operated, and the second conveying belt 2 is driven to operate by the transmission roller 7 and the motor 9, the first conveying belt 1 moves the plastic tray horizontally towards the direction of the second conveying belt 2, at this time, the first conveying belt 1 and the second conveying belt 2 are located at the same height position, the slide column 5 is located in the inclined part of the guide groove 4, when the tray moves to the second conveying belt 2 and contacts the baffle 10, due to the friction between the tray and the upper surface of the second conveying belt 2, the tray pushes the baffle 10 to move laterally, at this time, the baffle 10 drives the vertical plate 6 to move laterally, the vertical plate 6 drives the slide column 5 to move in the inclined part of the guide groove 4, the second conveying belt 2, the baffle 10 and the tray move upward synchronously, thereby making the second conveying belt 2 higher than the first conveying belt 1, the second conveying belt 2 towards the end of the first conveying belt 1 will block the tray on the first conveying belt 1, thereby avoiding the next tray to move to the second conveying belt 2, realizing the conveying work of the second conveying belt 2 to only one tray, the vertical movement of the vertical plate 6 will drive the moving frame 8 to slide vertically on the U-shaped frame 3, when the slide column 5 moves to the horizontal part of the guide groove 4, the second conveying belt 2 stops moving in the vertical direction, at this time, the baffle 10 and the tray move stably and horizontally, when the baffle 10 moves to the specified position, it stops moving, at this time, the baffle 10 blocks the movement of the tray, the relative sliding between the tray and the second conveying belt 2, the worker or the mechanical arm can move the tray to the specified position, thereby realizing the one-by-one conveying work of the tray by using the vertical movement of the second conveying belt 2 and the blocking of the end of the second conveying belt 2 to the tray on the first conveying belt 1.

[0041] It should be pointed out that, since the moving frame 8, the transmission roller 7, the motor 9, the U-shaped frame 3, the second conveying belt 2 and other structures all have weight, in order to ensure that the second conveying belt 2 moves in the vertical direction under the friction of the tray, the moving frame 8 and the structures thereon can be equipped with springs and other structures in a conventional manner in the art, so as to reduce the influence of gravity on the movement of the second conveying belt 2, after the tray on the second conveying belt 2 is removed, the vertical plate 6 is moved laterally and reset, the conveying speed of the second conveying belt 2 is generally slightly higher than that of the first conveying belt 1, so as to separate the two trays, the fixed structure and mode of the first conveying belt 1 can adopt a conventional structure mode, which will not be described here.

[0042] The special conveying structure is designed, so that the first conveying belt 1 and the second conveying belt 2 do not need to be frequently started and stopped, thereby reducing the equipment fatigue damage phenomenon; the vertical movement of the second conveying belt 2 is utilized to make the end of the second conveying belt 2 higher than the first conveying belt 1, so that the second conveying belt 2 blocks the tray on the first conveying belt 1, thereby realizing the one-by-one conveying work of the tray. This structure does not need to set other structure for the blocking of the tray, and only needs to utilize the second conveying belt 2, so that the second conveying belt 2 realizes the conveying function and the blocking function, and the method can effectively avoid the risk of position deviation or falling caused by the mutual interference of the trays in the traditional method, and improves the stability and accuracy in the conveying process. The scheme simplifies the complex operation steps in the traditional conveying process, makes the whole conveying process more smooth, reduces unnecessary intermediate links, and is beneficial to improve the overall work efficiency. In summary, the plastic tray automatic one-by-one conveying structure improves the production efficiency, and also considers the advantages of equipment maintenance, simple operation and safety.

[0043] Further, the U-shaped frame 3 is provided with a pushing unit for providing a constant lateral thrust for the vertical plate 6.

[0044] The pushing unit comprises a horizontal cylinder 11 and a fixed frame 12 located inside the U-shaped frame 3, the horizontal cylinder 11 is fixed on the U-shaped frame 3 through the fixed frame 12, two pistons 13 are slidably arranged in the horizontal cylinder 11, an oil inlet pipe 14 and an oil discharge pressure regulating valve 15 are communicated and arranged in the middle of the horizontal cylinder 11, and the oil inlet pipe 14 and the oil discharge pressure regulating valve 15 are located between the two pistons 13.

[0045] The transmission unit is connected with the piston 13, when the piston 13 moves in the horizontal cylinder 11 due to hydraulic action, the piston 13 pushes the vertical plate 6 to move laterally through the transmission unit.

[0046] In detail, the oil inlet pipe 14 is used to continuously supply hydraulic oil between the two pistons 13 in the horizontal cylinder 11, and the oil discharge pressure regulating valve 15 is used to discharge excess hydraulic oil, so as to ensure that the pressure of the hydraulic oil between the two pistons 13 is constant, and the pressure of the hydraulic oil between the two pistons 13 can be adjusted by adjusting the oil discharge pressure regulating valve 15. The constant thrust of the hydraulic oil in the horizontal cylinder 11 to the piston 13 can be transmitted to the vertical plate 6 through the transmission unit, when the tray on the second conveying belt 2 pushes the baffle 10 to move by utilizing the friction force, the baffle 10 and the vertical plate 6 move against the pressure of the hydraulic oil, at this time, the two pistons 13 are close to each other, and the excess hydraulic oil between the two pistons 13 is discharged through the oil discharge pressure regulating valve 15, when the tray is removed from the second conveying belt 2, the hydraulic oil in the horizontal cylinder 11 can push the piston 13 to reset, so as to reset the vertical plate 6 and the baffle 10.

[0047] It should be noted that the constant pressure provided by the hydraulic oil can provide a constant pushing force for the vertical plate 6 in any position and state, thereby avoiding the change of the force and movement state between the baffle 10 and the tray caused by the inability to provide a constant pushing force for the vertical plate 6 when the traditional spring structure is used.

[0048] Further, the transmission unit comprises two first sprockets 16 and a second sprocket 17 rotatably mounted on the side walls of the U-shaped frame 3, the two first sprockets 16 and the second sprocket 17 are connected by a transmission chain 18, and the upper surface of the transmission chain 18 is horizontal, and the upper surface of the transmission chain 18 is vertically provided with a connecting frame 21, and the connecting frame 21 is vertically slidably mounted on the vertical plate 6.

[0049] The middle part of the second sprocket 17 is provided with a threaded sleeve 19, the threaded sleeve 19 penetrates the second sprocket 17 and the U-shaped frame 3, the threaded sleeve 19 is fixedly connected with the second sprocket 17, the threaded sleeve 19 is rotatably connected with the U-shaped frame 3, and a threaded rod 20 is screwed into the threaded sleeve 19, and the threaded rod 20 is fixedly connected with a piston 13 in the horizontal cylinder 11.

[0050] The cross-sectional shape of the horizontal cylinder 11 and the shape of the piston 13 are both square.

[0051] In detail, due to the shape limitation of the horizontal cylinder 11 and the piston 13, the piston 13 cannot rotate in the horizontal cylinder 11, so the threaded rod 20 cannot rotate, so when the vertical plate 6 moves in the horizontal direction, it will drive the transmission chain 18, the first sprocket 16 and the second sprocket 17 to rotate through the connecting frame 21, the second sprocket 17 will drive the threaded sleeve 19 to rotate, the threaded sleeve 19 will rotate relative to the threaded rod 20, and the threaded sleeve 19 will drive the threaded rod 20 to move along the axis of the threaded rod 20, and the threaded rod 20 will drive the piston 13 to slide in the horizontal cylinder 11, so as to realize the effect that the hydraulic oil in the horizontal cylinder 11 provides a constant pushing force for the vertical plate 6. Since the vertical plate 6 needs to move in the vertical direction, the connecting frame 21 and the vertical plate 6 need to be relatively slidably connected.

[0052] Further, the front and rear side walls of the U-shaped frame 3 are provided with support frames 22, and a sliding sleeve 23 is slidably sleeved on the support frame 22, and the sliding sleeve 23 and the support frame 22 are locked by bolts, and the sliding sleeve 23 is provided with a first limiting plate 24 for limiting the lateral movement position of the connecting frame 21.

[0053] In detail, when the connecting frame 21 and the vertical plate 6 move laterally, the connecting frame 21 will contact the first limiting plate 24, at this time, the first limiting plate 24 limits the lateral movement position of the connecting frame 21, that is, limits the specified position of the tray conveying, when it is necessary to adjust the specified position, the bolts between the sliding sleeve 23 and the support frame 22 can be loosened and the sliding sleeve 23 can be slid to adjust the position of the first limiting plate 24.

[0054] Further, the support frame 22 is horizontally slidingly installed on the U-shaped frame 3, and the sliding direction of the support frame 22 is perpendicular to the conveying direction of the second conveying belt 2, the support frame 22 is connected with the U-shaped frame 3 through the first air cylinder 25, and the support frame 22 is provided with the second limiting plate 26;

[0055] The baffle 10 is provided with a fixing groove, and the fixing groove is provided with a laser range finder 27.

[0056] In detail, when the tray is conveyed to the second conveying belt 2, the tray is in contact with the side wall of the baffle 10, if the tray is inclined on the second conveying belt 2, the distance between the laser range finder 27 and the tray will exceed the predetermined value, that is, the tray and the baffle 10 are not in surface contact, at this time, the first air cylinder 25 is retracted, the first air cylinder 25 pulls the support frame 22 to slide on the U-shaped frame 3, the second limiting plate 26 moves to a position capable of blocking the connecting frame 21, so that the connecting frame 21, the vertical plate 6 and the baffle 10 cannot move horizontally, at this time, the second conveying belt 2 and the first conveying belt 1 continue to run, and by using the friction force, the tray can be gradually adjusted and in surface contact with the baffle 10, at this time, the first air cylinder 25 is elongated and pushes the support frame 22 to reset, and the second limiting plate 26 stops the blocking work of the connecting frame 21.

[0057] It should be pointed out that the first limiting plate 24 moves synchronously with the support frame 22, in order to ensure that the first limiting plate 24 can still play a positioning effect when the second limiting plate 26 no longer plays a blocking role, the length of the first limiting plate 24 needs to be greater than the length of the second limiting plate 26, and the first limiting plate 24 will not be in contact with the side wall of the U-shaped frame 3.

[0058] Further, the baffle 10 is provided with a pressing plate 28 on the top.

[0059] In detail, when the first conveying belt 1 and the second conveying belt 2 convey the tray, in order to avoid that the next tray cannot move to the second conveying belt 2, the second conveying belt 2 needs to move upward when the previous tray has not completely moved to the second conveying belt 2, that is, the tray needs to be in contact with the baffle 10 in advance, and at this time, since the tray is only partially on the second conveying belt 2, the tray is prone to tilting and falling off, at this time, by using the friction force of the pressing plate 28 and the second conveying belt 2 on the tray, the tray can be conveniently limited and pressed, so as to avoid tilting and sliding of the tray.

[0060] Further, the pressing plate 28 is fixed with a support table 29, the side wall of the baffle 10 is provided with a second air cylinder 30, and the movable end of the second air cylinder 30 is rotationally connected with the support table 29 through a connecting rod 31.

[0061] The pressing plate 28 is rotationally installed on the baffle 10.

[0062] In detail, the second cylinder 30 is located at the back side of the baffle 10, when the tray moves to the designated position, the second cylinder 30 is elongated and pulls the pressing plate 28 to rotate on the baffle 10 through the connecting rod 31 and the supporting table 29, at this time, the pressing plate 28 is rotated from the horizontal state to the vertical state, the pressing plate 28 stops the blocking work on the tray, thereby facilitating the tray to be moved away smoothly.

[0063] Further, the connecting rod 31 is fixed with a limiting block 32, the limiting block 32 is located between the second cylinder 30 and the supporting table 29, when the pressing plate 28 is horizontal, the limiting block 32 is in contact with the upper surface of the pressing plate 28.

[0064] In detail, when the second cylinder 30 is contracted and pulls the pressing plate 28 to rotate to the horizontal state through the connecting rod 31 and the supporting table 29, the limiting block 32 is in contact with the upper surface of the pressing plate 28, at this time, the limiting block 32 limits the pressing plate 28 and the connecting rod 31, thereby positioning the horizontal position of the pressing plate 28.

[0065] The above only describes the preferred embodiments of the present application, it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. An automated single piece transport structure for plastic pallets, characterized by, The utility model provides a plastic tray conveying device, including first conveying belt, second conveying belt and U type frame, and first conveying belt and second conveying belt are all used for conveying plastic tray, and U type frame is located first conveying belt below, and the front and back side walls of U type frame all are equipped with guide groove, and guide groove is composed of horizontal part and downwardly inclined inclined part, and inclined part is located close to first conveying belt on U type frame side, and slide column is slidably arranged in guide groove, and vertical plate is vertically arranged on slide column, and connecting frame is vertically slidably installed on vertical plate, Two transmission rollers for driving the second conveying belt to run are arranged in the second conveying belt, and a moving frame is vertically and slidably arranged on the front and back sides of the top of the U-shaped frame, and the transmission rollers are rotatably installed on the moving frame, and the vertical plates are transversely and slidably installed on the side walls of the moving frame, and a baffle for blocking the plastic trays on the second conveying belt is arranged between the two vertical plates; When the first conveying belt conveys the plastic trays onto the second conveying belt, the first conveying belt and the second conveying belt are on the same horizontal plane, when the plastic trays are conveyed on the second conveying belt, the second conveying belt moves in the vertical direction, and the end of the second conveying belt blocks the plastic trays on the first conveying belt, and a motor for providing power for the second conveying belt and the transmission rollers is arranged on one moving frame; Support frames are arranged on the front and back side walls of the U-shaped frame, a sliding sleeve is slidably arranged on the support frame, the sliding sleeve and the support frame are locked by bolts, and a first limiting plate for limiting the transverse moving position of the connecting frame is arranged on the sliding sleeve; The support frames are horizontally and slidably installed on the U-shaped frame, the sliding direction of the support frames is perpendicular to the conveying direction of the second conveying belt, the support frames and the U-shaped frame are connected by a first air cylinder, and a second limiting plate is arranged on the support frame; A fixing groove is arranged on the baffle, and a laser range finder is arranged in the fixing groove; A pressing plate is arranged on the top of the baffle; A supporting table is fixed on the pressing plate, a second air cylinder is arranged on the side wall of the baffle, and the movable end of the second air cylinder is rotatably connected to the supporting table by a connecting rod; The pressing plate is rotatably installed on the baffle.

2. An automated single file conveying structure for plastic pallets according to claim 1, wherein, A pushing unit is arranged on the U-shaped frame, and the pushing unit provides a constant transverse pushing force for the vertical plate; The pushing unit comprises a horizontal cylinder on the inner side of the U-shaped frame and a fixing frame, the horizontal cylinder is fixed on the U-shaped frame by the fixing frame, two pistons are slidably arranged in the horizontal cylinder, an oil inlet pipe and an oil discharge pressure regulating valve are communicatively arranged in the middle of the horizontal cylinder, and the oil inlet pipe and the oil discharge pressure regulating valve are located between the two pistons; The U-shaped frame is provided with a transmission unit on the front and back side walls, the transmission unit is connected with the pistons, and when the pistons move in the horizontal cylinder due to hydraulic action, the pistons push the vertical plate to move transversely through the transmission unit.

3. An automated single file conveying structure for plastic pallets according to claim 2, wherein, The transmission unit comprises two first sprockets and one second sprocket rotatably installed on the side walls of the U-shaped frame, the two first sprockets and the second sprocket are driven by a transmission chain, the upper surface of the transmission chain is horizontal, a connecting frame is vertically arranged on the upper surface of the transmission chain, and the connecting frame is vertically and slidably installed on the vertical plate; The middle part of the second sprocket is provided with a threaded sleeve, the threaded sleeve passes through the second sprocket and the U-shaped frame, the threaded sleeve is fixedly connected with the second sprocket, the threaded sleeve is rotationally connected with the U-shaped frame, a threaded rod is screwed into the threaded sleeve, and the threaded rod is fixedly connected with a piston in the horizontal cylinder. The cross-sectional shape of the horizontal cylinder and the shape of the piston are both square.

4. An automated single file conveying structure for plastic pallets according to claim 3, wherein, The connecting rod is fixedly provided with a limiting block, the limiting block is located between the second cylinder and the table, and the limiting block is in contact with the upper surface of the pressing plate when the pressing plate is horizontal.

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