Double-layer coded disc conveyor

Abstract

The utility model discloses a double-layer coded disc conveyor which comprises a supporting frame, an upper driving assembly, a lower driving assembly, a jacking mechanism, an upper-layer conveying belt and a lower-layer conveying belt. A plurality of trays are conveyed on the upper-layer conveying belt and the lower-layer conveying belt, a pushing mechanism is arranged in the supporting frame and comprises a telescopic air cylinder and a pushing plate, the pushing plate is connected to a piston rod of the telescopic air cylinder, two positioning notches are formed in the pushing plate, and a rotating shaft is rotationally connected into each positioning notch; the rotating shaft is sleeved with an arc-shaped push block located in the positioning notch, a rotating positioning seat for driving the rotating shaft to rotate is arranged on the outer side of the rotating shaft, two limiting blocks are arranged on one side of the supporting frame, a trapezoidal limiting head is arranged on the side edge of each limiting block, and trapezoidal limiting grooves matched with the trapezoidal limiting heads are formed in one side of the tray. A clamping notch matched with the arc-shaped push block is formed in the bottom of the other side of the tray. According to the structure, the tray can be positioned.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of conveyer, in particular to a double -deck code disc conveyer. BACKGROUND

[0002] The conveyer is a kind of equipment for conveying product, it can realize the conveying of product loading and product unloading, to improve conveying effect, currently, double-layer conveying belt is generally set to convey in opposite direction to improve conveying efficiency,

[0003] The conveyer is convenient for conveying material, and is often used for conveying material between processes of automatic production line, commonly used are belt type conveying device and roller type conveying device, but the conveying device between processes is mostly a single-layer conveying device or a double-layer conveying device, the double-layer conveying device uses opposite direction conveying belt upward and downward, and simultaneously moves product from the upper conveying belt to the lower conveying belt by a jacking mechanism, but such double-layer conveying mechanism often causes the phenomenon that the tray is slightly deviated in position when conveying tray, and the upper conveying belt cannot accurately convey the tray to the jacking mechanism, so manual adjustment is needed, thereby causing low work efficiency and inaccurate conveying positioning problem, so it needs to be improved. TECHNICAL SOLUTION

[0004] The utility model discloses a double -deck code disc conveyer, solve the existing tray conveying mechanism and have the problems, such as inaccurate conveying positioning and low work efficiency.

[0005] To solve the above technical problem, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a double -decked code disc conveyer, including support frame, upper drive component, lower drive component, jacking mechanism and parallelly arranged upper layer transmission tape and lower layer transmission tape on support frame, support frame is used for supporting upper layer transmission tape with lower layer transmission tape, upper drive component is used for driving upper layer transmission tape movement, lower drive component is used for driving lower layer transmission tape movement, jacking mechanism is arranged on support frame, and jacking mechanism is arranged below lower layer transmission tape in a liftable way to realize reciprocating motion between lower layer transmission tape and upper layer transmission tape, and the transmission of upper layer transmission tape and lower layer transmission tape has more than one tray, and the lower side of upper layer transmission tape is equipped with the pushing mechanism in support frame, the pushing mechanism includes telescopic cylinder and push plate, the piston rod of telescopic cylinder is connected with the push plate that pushes the tray into jacking mechanism, the bottom of push plate is equipped with two rotary positioning seat, one pivot is rotatably connected on each rotary positioning seat, and one arc push block is equipped on each pivot, and each arc push block is rotatably connected in the positioning gap of push plate and partially exposes the positioning gap, two limit blocks are equipped on the side of support frame and close to jacking mechanism, the side of each limit block is equipped with trapezoidal limit head, trapezoidal limit slot that cooperates with trapezoidal limit head is equipped on the side of tray, and the bottom of the other side of tray is equipped with the clamping gap that cooperates with arc push block.

[0007] As preferred, in order to facilitate reset, the bottom of the push plate is provided with two symmetrical spring clamping columns, and a spring hanging column is arranged inside each arc-shaped push block. A tension spring is hung between each symmetrical spring clamping column and the spring hanging column.

[0008] As preferred, the bottom of the push plate is further provided with a sliding block support, and a straight guide rail is arranged in the support frame. The sliding block support is slidingly connected to the straight guide rail.

[0009] As preferred, an equal-height bolt is arranged above each tray, and a proximity switch I is arranged on the side above the support frame for detecting whether the tray on the upper layer transmission belt is delivered in place. When the equal-height bolt contacts the proximity switch I, it is determined that the tray on the upper layer transmission belt is delivered in place. An infrared emitter is further arranged in front of the lower layer transmission belt on the support frame, and an infrared receiver is arranged behind the lower layer transmission belt. The infrared emitter and the infrared receiver cooperate to detect whether there is a tray delivered by the jacking mechanism on the lower layer transmission belt. A handle is arranged on each tray.

[0010] As preferred, in order to facilitate installation, a push plate mounting plate is arranged in the support frame. The telescopic cylinder and the straight guide rail are fixed on the push plate mounting plate.

[0011] As preferred, a fish eye joint is connected to the piston rod of the telescopic cylinder, and a hinged support is fixed to the bottom of the push plate and hinged to the fish eye joint.

[0012] As preferred, a limiting function is realized, and a silica gel buffer head matched with the push plate is further arranged on the push plate mounting plate.

[0013] As preferred, for convenient operation, the jacking mechanism comprises a jacking flange plate, a jacking cylinder, a jacking plate and a jacking panel, the jacking flange plate is fixed in the support frame, the jacking cylinder is fixed below the jacking flange plate, the piston rod of the jacking cylinder penetrates through the jacking flange plate and is connected to the jacking plate, the jacking panel is fixed to the jacking plate, and four guide rods are arranged below the jacking plate and are slidingly connected to the jacking flange plate.

[0014] As preferred, for convenient transmission, the upper drive assembly comprises an upper speed reducer, an upper main shaft, two upper main synchronous pulleys and two upper auxiliary synchronous pulleys, the upper speed reducer is fixed to the front end of one side of the support frame, the output shaft of the upper speed reducer is inserted into the support frame and connected to the upper main shaft, the upper main shaft is rotatably connected to one side of the support frame, two upper main synchronous pulleys are arranged on the upper main shaft at intervals, two upper auxiliary synchronous pulleys are rotatably connected to the other side of the support frame, one upper auxiliary synchronous pulley is symmetrically arranged with one upper main synchronous pulley, and one upper synchronous belt is matched between the symmetrically arranged upper main synchronous pulley and upper auxiliary synchronous pulley, and two upper synchronous belts form the upper transmission belt.

[0015] As preferred, for convenient transmission, the lower drive assembly comprises a lower speed reducer, a lower main shaft, two lower main synchronous pulleys and two lower auxiliary synchronous pulleys, the lower speed reducer is fixed to the front end of one side of the support frame, the output shaft of the lower speed reducer is inserted into the support frame and connected to the lower main shaft, the lower main shaft is rotatably connected to one side of the support frame, two lower main synchronous pulleys are arranged on the lower main shaft at intervals, two lower auxiliary synchronous pulleys are rotatably connected to the other side of the support frame, one lower auxiliary synchronous pulley is symmetrically arranged with one lower main synchronous pulley, and one lower synchronous belt is matched between the symmetrically arranged lower main synchronous pulley and lower auxiliary synchronous pulley, and two lower synchronous belts form the lower transmission belt.

[0016] The present utility model has the following beneficial effects: the structure is provided with a pushing mechanism, the tray on the upper conveying belt can be positioned first, then directly conveyed to the jacking mechanism by the pushing mechanism, so that the tray is automatically positioned, the accuracy of transmission is ensured, the problem of inaccurate conveying positioning caused by manual positioning in the prior art is solved, and manual adjustment is not needed in the later period, so that the work efficiency and safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure diagram of a double-decked tray conveyor in Example 1 Figure 1 ;

[0018] Figure 2 Structure diagram of a double-decked tray conveyor in Example 1 Figure 2 ;

[0019] Figure 3 Structure diagram of a double-decked tray conveyor in Example 1 without placing a tray on the lifting mechanism

[0020] Figure 4 Structure diagram of a double-decked tray conveyor in Example 1 without placing a tray on the lifting mechanism and the upper transmission belt

[0021] Figure 5 Structure diagram of a double-decked tray conveyor in Example 1 when the pushing mechanism is installed to the pushing plate mounting plate

[0022] Figure 6 Structure diagram of the bottom of Figure 5 ;

[0023] Figure 7 Structure diagram of a tray in Example 1 Figure 1 ;

[0024] Figure 8 Structure diagram of a tray in Example 1 Figure 2 ;

[0025] Figure 9 Structure diagram of a double-decked tray conveyor in Example 1 about the lifting mechanism

[0026] Figure 10 Structure diagram of the separation of the lifting panel and other components in Figure 9 ;

[0027] Figure 11 Structure diagram of the connection of the upper driving assembly, the lower driving mechanism, the upper transmission belt and the lower transmission belt part in a double-decked tray conveyor in Example 1 Figure 1 ;

[0028] Figure 12 Structure diagram of the separation of one of the upper synchronous belts and one of the lower synchronous belts and other components in Figure 11 ;

[0029] Figure 13 Structure diagram of the connection of the upper driving assembly, the lower driving mechanism, the upper transmission belt and the lower transmission belt part in a double-decked tray conveyor in Example 1 Figure 2 ;

[0030] Figure 14 For Figure 2 Enlarged view of A in

[0031] Reference signs:

[0032] Support frame 1, upper drive assembly 2, upper reduction motor 201, upper main shaft 202, upper auxiliary synchronous pulley 203, upper main synchronous pulley 204, lower drive assembly 3, lower reduction motor 301, lower main shaft 302, lower auxiliary synchronous pulley 303, lower main synchronous pulley 304, jacking mechanism 4, jacking flange plate 401, jacking cylinder 402, jacking plate 403, jacking panel 404, guide rod 405, upper layer conveying belt 5, lower layer conveying belt 6, tray 7, pushing mechanism 8, telescopic cylinder 801, push plate 802, positioning notch 803, rotating shaft 804, arc-shaped push block 805, rotating positioning seat 806, limiting block 9, trapezoidal limiting head 10, trapezoidal limiting groove 11, clamping notch 12, spring clamping column 13, spring hanging column 14, tension spring 15, sliding block support 16, linear guide rail 17, push plate mounting plate 18, fish eye joint 19, hinged support 20, lower synchronous belt 21, silica gel buffer head 22, equal-height bolt 23, proximity switch one 24, handle 25, upper synchronous belt 26, infrared emitter 27, infrared receiver 28, tubular product 29, proximity switch two 30. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Embodiment 1

[0035] Please refer to Figures 1-14As shown in the figure, the double-layered code disc conveyor disclosed by the embodiment comprises a support frame 1, an upper driving assembly 2, a lower driving assembly 3, a jacking mechanism 4, and an upper transmission belt 5 and a lower transmission belt 6 which are parallel to the support frame 1; the support frame 1 is used for supporting the upper transmission belt 5 and the lower transmission belt 6; the upper driving assembly 2 is used for driving the upper transmission belt 5 to move; the lower driving assembly 3 is used for driving the lower transmission belt 6 to move; the jacking mechanism 4 is arranged on the support frame 1 and is arranged below the lower transmission belt 6 in a lifting manner so as to realize the reciprocating movement between the lower transmission belt 6 and the upper transmission belt 5, and there is more than one tray 7 transmitted on the upper transmission belt 5 and the lower transmission belt 6, characterized in that a material pushing mechanism 8 is arranged below the upper transmission belt 5 in the support frame 1, the material pushing mechanism 8 comprises a telescopic cylinder 801 and a pushing plate 802, a piston rod of the telescopic cylinder 801 is connected with the pushing plate 802 which pushes the tray 7 into the jacking mechanism 4, a bottom of the pushing plate 802 is provided with two rotating positioning seats 806, a rotating shaft 804 is rotatably connected to each rotating positioning seat 806, an arc-shaped pushing block 805 is arranged on each rotating shaft 804, each arc-shaped pushing block 805 is rotatably connected in a positioning gap 803 of the pushing plate 802 and partially exposed from the positioning gap 803, two limiting blocks 9 are arranged on one side of the support frame 1 and close to the jacking mechanism 4, a trapezoidal limiting head 10 is arranged on a side edge of each limiting block 9, a trapezoidal limiting groove 11 which cooperates with the trapezoidal limiting head 10 is arranged on one side of the tray 7, and a clamping gap 12 which cooperates with the arc-shaped pushing block 805 is arranged on the other side of the tray 7.

[0036] As a preferred, in order to facilitate reset, two symmetrical spring clamping columns 13 are arranged on the bottom of the pushing plate 802, a spring hanging column 14 is arranged inside each arc-shaped pushing block 805, and a tension spring 15 is hung between each symmetrical spring clamping column 13 and the spring hanging column 14, and in order to facilitate viewing, Figure 6 one end of the tension spring 15 in the figure is not inserted into the mounting through hole of the spring clamping column 13, and in later use, the hook of the one end of the tension spring 15 needs to be hooked into the mounting through hole of the spring clamping column 13.

[0037] As a preferred, the guiding effect during movement is realized, a sliding block support 16 is further arranged on the bottom of the pushing plate 802, a straight guide rail 17 is arranged in the support frame 1, the sliding block support 16 is slidingly connected to the straight guide rail 17, and in order to facilitate installation, a pushing plate mounting plate 18 is arranged in the support frame 1, and the telescopic cylinder 801 and the straight guide rail 17 are fixed on the pushing plate mounting plate 18.

[0038] As preferred, in order to facilitate operation, the jacking mechanism 4 comprises a jacking flange plate 401, a jacking cylinder 402, a jacking plate 403 and a jacking panel 404, the jacking flange plate 401 is fixed in the support frame 1, the jacking cylinder 402 is fixed below the jacking flange plate 401, and the piston rod of the jacking cylinder 402 is connected with the jacking plate 403 after penetrating the jacking flange plate 401, the jacking plate 403 is fixed with the jacking panel 404, four guide rods 405 are arranged below the jacking plate 403 and are slidingly connected with the jacking flange plate 401, since the jacking plate 403 can move up and down between the upper conveying belt 5 and the lower conveying belt 6, and the jacking panel 404 is located in the gap between the two lower synchronous belts 21; the specific working principle of the jacking mechanism 4 in the embodiment is as follows: the jacking cylinder 402 works to drive the jacking plate 403 to move up and down, so that the jacking panel 404 can be flush with the upper conveying belt 5 or can be located below the lower conveying belt 6, when the jacking panel 404 is located below the lower conveying belt 6, the tray 7 on the jacking panel 404 is supported on the two lower synchronous belts 21, and finally the tray 7 is moved by the two lower synchronous belts 21 to realize transmission.

[0039] As preferred, an equal height bolt 23 is arranged above each tray 7, and a proximity switch 24 is arranged on the side of the support frame 1 above the equal height bolt 23 to detect whether the tray 7 on the upper conveying belt 5 is transported to the position. When the equal height bolt 23 is contacted by the proximity switch 24, it is determined that the tray 7 on the upper conveying belt 5 is transported to the position. An infrared emitter 27 is arranged in front of the lower conveying belt 6, and an infrared receiver 28 is arranged behind the lower conveying belt 6 to detect whether the tray 7 transported by the jacking mechanism 4 is on the lower conveying belt 6. A handle 25 is arranged on each side of the tray 7 to facilitate the manual lifting of the tray 7 by two hands in the later stage. The equal height bolt 23 is arranged on each side of the tray 7, and the proximity switch 24 is arranged on the support frame 1. When the upper conveying belt 5 moves, the tray 7 is driven to move from right to left. When the tray 7 moves to the position where the proximity switch 24 contacts the equal height bolt 23, the proximity switch 24 obtains a signal, indicating that the tray 7 is in position. At this time, the upper conveying belt 5 can be driven to stop working. If the jacking mechanism 4 is still on the lower conveying belt 6, the jacking mechanism 4 is driven to work, so that the jacking panel 404 corresponding to the jacking mechanism 4 moves to the upper side and is flush with the upper conveying belt 5. In order to improve the detection accuracy, a proximity switch 30 is arranged on the left side of the support frame 1 to detect whether the tray 7 is on the jacking panel 404. When the proximity switch 30 is contacted by the tray 7, it indicates that the tray 7 is in position. Then, the pushing mechanism 8 is driven to work to push the tray 7 in position onto the jacking panel 404. After the tray 7 on the lower conveying belt 6 is in position, the infrared emitter 27 is blocked by the tray 7, and the infrared receiver 28 cannot receive the signal sent by the infrared emitter 27, indicating that the tray 7 on the lower conveying belt 6 is in position. At this time, the lower driving assembly 3 is driven to work to transport the tray 7. It should be noted that the specific type of the proximity switch 24, the infrared receiver 28, and the infrared emitter 27 and how to obtain signals belong to the conventional technology in the field, and therefore will not be described in detail.

[0040] As preferred, a fish eye joint 19 is connected to the piston rod of the telescopic cylinder 801, and a hinged support 20 is fixed to the bottom of the push plate 802. The hinged support 20 is hinged to the fish eye joint 19. In this embodiment, the telescopic cylinder 801 and the push plate 802 are hinged to each other, achieving flexibility in movement.

[0041] As preferred, a limiting function is achieved. A silica gel buffer head 22 is arranged on the push plate mounting plate 18 to cooperate with the push plate 802. In this embodiment, the initial position of the push plate 802 is limited by the silica gel buffer head 22, and silica gel material is used to avoid hard contact with the push plate 802 and damage the push plate 802, and at the same time, the silica gel buffer head 22 can also play a buffering role.

[0042] As Figures 11-13As shown, as preferred, in order to facilitate transmission, the upper drive assembly 2 comprises an upper reduction motor 201, an upper main shaft 202, an upper main synchronous pulley 204 and two upper auxiliary synchronous pulleys 203, the upper reduction motor 201 is fixed at the front end of one side of the support frame 1, the output shaft of the upper reduction motor 201 is inserted into the support frame 1 and connected with the upper main shaft 202, the upper main shaft 202 is rotatably connected to one side of the support frame 1, two upper main synchronous pulleys 204 are arranged on the upper main shaft 202, two upper auxiliary synchronous pulleys 203 are rotatably connected to the other side of the support frame 1, one upper main synchronous pulley 204 is symmetrically arranged with one upper auxiliary synchronous pulley 203, and one upper synchronous belt 26 is matched between the symmetrically arranged upper main synchronous pulley 204 and the upper auxiliary synchronous pulley 203, and two upper synchronous belts 26 constitute the upper layer transmission belt 5; the lower drive assembly 3 comprises a lower reduction motor 301, a lower main shaft 302, a lower main synchronous pulley 304 and two lower auxiliary synchronous pulleys 303, the lower reduction motor 301 is fixed at the front end of one side of the support frame 1, the output shaft of the lower reduction motor 301 is inserted into the support frame 1 and connected with the lower main shaft 302, the lower main shaft 302 is rotatably connected to one side of the support frame 1, two lower main synchronous pulleys 304 are arranged on the lower main shaft 302, two lower auxiliary synchronous pulleys 303 are rotatably connected to the other side of the support frame 1, one lower auxiliary synchronous pulley 303 is symmetrically arranged with one lower main synchronous pulley 304, and one lower synchronous belt 21 is matched between the symmetrically arranged lower main synchronous pulley 304 and the lower auxiliary synchronous pulley 303, and two lower synchronous belts 21 constitute the lower layer transmission belt 6, during work, the upper reduction motor 201 is driven to work, the upper main shaft 202 is rotated, the right two upper main synchronous pulleys 204 are rotated synchronously, the left upper auxiliary synchronous pulley 203 is rotated synchronously, and finally the two upper synchronous belts 26 arranged at intervals are moved from right to left, and a plurality of trays 7 are arranged between the two upper synchronous belts 26 arranged at intervals, so as to move the tray 7 stacked with the tubular product 29 (in the unprocessed state) from the right to the left to the position of the jacking mechanism 4 to realize feeding.Similarly, the working mode of the lower driving assembly 3 is as follows: the lower reduction motor 301 works to drive the lower main shaft 302 to rotate, synchronously drive the two lower auxiliary synchronous pulleys 303 on the right to rotate, and cooperate with the synchronous rotation of the two lower auxiliary synchronous pulleys 303 on the left, so that the two spaced lower synchronous belts 21 on the upper side move from left to right, and a plurality of trays 7 are placed between the two spaced lower synchronous belts 21 (at this time, the tubular product 29 on the conveyed tray 7 is a finished product), so as to move the tray 7 stacked with the tubular product 29 (in a finished state) from left to right to realize discharging, and it should be noted that the lower reduction motor 301, the lower auxiliary synchronous pulley 303, the lower main synchronous pulley 304, the upper reduction motor 201, the upper main synchronous pulley 204, the upper auxiliary synchronous pulley 203, and the upper main synchronous pulley 204 can be purchased, so they are not described in detail.

[0043] The specific working principle of the structure is as follows: personnel places a tray 7 with a tubular product 29 in the blank state on the upper layer of the conveyor, and after being conveyed to the specified position by the upper driving assembly 2 and the upper transmission belt 5, in the initial state, the arc-shaped push block 805 is in the position shown in the left side of FIG. 8, and the arc-shaped push block 805 is in the position shown in the right side of FIG. 8. Figure 5In the state shown, as the tray 7 moves from right to left, the arc-shaped push block 805 will be pushed to rotate at the leftmost side of the tray 7 due to the partial exposure of the arc-shaped push block 805 to the clamping gap 12. As the tray 7 continues to move to the left, the arc-shaped push block 805 is inserted into the clamping gap 12 to limit the tray 7. At this time, the telescopic cylinder 801 can be driven to work, and the push plate 802 can be used to push the entire tray 7 onto the lifting mechanism 4. At the same time, the telescopic cylinder 801 can be driven to reset to position another tray 7 conveyed from the right side. Due to the action of the tension spring 15, the arc-shaped push block 805 can be reset. Then, the existing mechanical hand can be used to grab the tubular product 29 on the tray 7 on the lifting mechanism 4 and place the tubular product 29 into the machine tool for processing. After the processing of the product is completed, the lifting mechanism 4 is driven to work, and the lifting cylinder 402 in the lifting mechanism 4 is lowered to the lower layer of the lower conveying belt 6 to move the processed tubular product 29 to the lower layer of the lower conveying belt 6. After detecting that the tray 7 is in place, the lower driving assembly 3 is driven to work to move the lower conveying belt 6 horizontally to achieve discharging. After the tray 7 is manually taken, the conveying machine of the structure can be loaded and unloaded. Therefore, the conveying machine can save the floor area. The conveying machine generally works by driving the synchronous belt with the reduction motor to convey the tray 7. The positioning groove on the tray 7 is used to fix the product to ensure the accurate clamping of the robot or gantry mechanical hand. The tray 7 also serves as a storage position for the finished product. Four trays 7 can be placed on the upper conveying machine, and more products can be placed on each tray 7 to reduce the frequency of manual loading. Therefore, the structure can realize the positioning of the tray 7 on the upper conveying belt and the direct conveying of the tray 7 to the lifting mechanism 4 by the pushing mechanism 8 to realize the automatic positioning of the tray 7 and ensure the accuracy of the conveying. The problem of inaccurate conveying caused by manual positioning in the prior art is solved. In the later period, manual adjustment is not required, which improves the work efficiency and safety.

[0044] It should be noted that the control cabinet is arranged in the support frame 1. The control cabinet is electrically connected with the upper reduction motor 201, the lower reduction motor 301, the lifting cylinder 402, the telescopic cylinder 801, the proximity switch one 24, the proximity switch two 30, the infrared emitter 27, and the infrared receiver 28 to realize the automatic control of the equipment. Figure 2 As shown, the control cabinet protection door 101 is hinged to the lower back of the support frame 1. The control cabinet protection door 101 can be opened in the later period to expose the control cabinet for maintenance.

[0045] The above are only preferred embodiments of the present application, and do not limit the present application, any modification to the technical solutions recorded in the foregoing embodiments, equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement made, all belong to the protection scope of the present application.

Claims

1. A double-decked disc conveyor, comprising a support frame (1), an upper driving assembly (2), a lower driving assembly (3), a jacking mechanism (4), and an upper transmission belt (5) and a lower transmission belt (6) arranged in parallel on the support frame (1); the jacking mechanism (4) is arranged on the support frame (1) and is arranged below the lower transmission belt (6) in a lifting manner so as to realize reciprocating movement between the lower transmission belt (6) and the upper transmission belt (5); there are more than one trays (7) on the upper transmission belt (5) and the lower transmission belt (6), characterized in that: Pushing mechanism (8) is arranged below the support frame (1) relative to the upper layer transmission belt (5), the pushing mechanism (8) includes telescopic cylinder (801) and push plate (802), the piston rod of the telescopic cylinder (801) is connected with the push plate (802) for pushing the tray (7) into the jacking mechanism (4), the bottom of the push plate (802) is provided with two rotating positioning seats (806), one rotating shaft (804) is rotatably connected on each rotating positioning seat (806), one arc-shaped push block (805) is arranged on each rotating shaft (804), each arc-shaped push block (805) is rotatably connected in the positioning gap (803) of the push plate (802) and partially exposed from the positioning gap (803), two limiting blocks (9) are arranged on one side of the support frame (1) close to the jacking mechanism (4), the side edge of each limiting block (9) is provided with a trapezoidal limiting head (10), a trapezoidal limiting groove (11) matched with the trapezoidal limiting head (10) is arranged on one side of the tray (7), a clamping gap (12) matched with the arc-shaped push block (805) is arranged on the bottom of the other side of the tray (7), two symmetrical spring clamping columns (13) are arranged on the bottom of the push plate (802), a spring hanging column (14) is arranged on the inner side of each arc-shaped push block (805), and a tension spring (15) is hung between each symmetrical spring clamping column (13) and the spring hanging column (14).

2. A dual-deck disc conveyor as claimed in claim 1, characterized in that: A sliding block support (16) is further arranged on the bottom of the push plate (802), and a straight guide rail (17) is arranged in the support frame (1), and the sliding block support (16) is slidably connected to the straight guide rail (17).

3. A dual deck disc conveyor as claimed in claim 2, wherein: An equal-height bolt (23) is arranged above each tray (7), a proximity switch I (24) for detecting whether the tray (7) on the upper layer transmission belt (5) is delivered to the position is arranged on the side edge of the top of the support frame (1), after the equal-height bolt (23) touches the proximity switch I (24), it is judged that the tray (7) on the upper layer transmission belt (5) is delivered to the position, an infrared emitter (27) located in front of the lower layer transmission belt (6) and an infrared receiver (28) located behind the lower layer transmission belt (6) are further arranged on the support frame (1), the infrared emitter (27) and the infrared receiver (28) are matched and used for detecting whether there is a tray (7) delivered by the jacking mechanism (4) on the lower layer transmission belt (6), and a handle (25) is arranged on both sides above each tray (7).

4. A dual deck disc conveyor as claimed in claim 3, wherein: A push plate mounting plate (18) is arranged in the support frame (1), and the telescopic cylinder (801) and the straight guide rail (17) are fixed on the push plate mounting plate (18).

5. A dual deck disc conveyor as claimed in claim 4, wherein: A fish-eye joint (19) is connected to the piston rod of the telescopic cylinder (801), and a hinged support (20) is fixed to the bottom of the push plate (802), and the hinged support (20) is hinged to the fish-eye joint (19).

6. A dual deck disc conveyor as claimed in claim 4, wherein: A silica gel buffer head (22) matched with the push plate (802) is further arranged on the push plate mounting plate (18).

7. A double-decked disc conveyor as claimed in claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The jacking mechanism (4) comprises a jacking flange plate (401), a jacking cylinder (402), a jacking plate (403) and a jacking panel (404), the jacking flange plate (401) is fixed in the support frame (1), the jacking cylinder (402) is fixed below the jacking flange plate (401), and the piston rod of the jacking cylinder (402) is connected with the jacking plate (403) after penetrating the jacking flange plate (401), the jacking panel (404) is fixed on the jacking plate (403), and four guide rods (405) are arranged below the jacking plate (403), and the guide rods (405) are slidingly connected on the jacking flange plate (401).

8. A dual deck disc conveyor as claimed in claim 7, characterised in that: The upper driving assembly (2) comprises an upper speed reducer motor (201), an upper main shaft (202), an upper main synchronous pulley (204) and two upper auxiliary synchronous pulleys (203), the upper speed reducer motor (201) is fixed at the front end of one side of the support frame (1), the output shaft of the upper speed reducer motor (201) is inserted into the support frame (1) and is connected with the upper main shaft (202), the upper main shaft (202) is rotatably connected to one side of the support frame (1), two upper main synchronous pulleys (204) are arranged on the upper main shaft (202) at intervals, two upper auxiliary synchronous pulleys (203) are rotatably connected to the other side of the support frame (1), one upper main synchronous pulley (204) and one upper auxiliary synchronous pulley (203) are symmetrically arranged, and one upper synchronous belt (26) is arranged between the symmetrically arranged upper main synchronous pulley (204) and the upper auxiliary synchronous pulley (203), and two upper synchronous belts (26) constitute the upper transmission belt (5).

9. A dual deck disc conveyor as claimed in claim 8, characterised in that: The lower driving assembly (3) comprises a lower speed reducer motor (301), a lower main shaft (302), a lower main synchronous pulley (304) and two lower auxiliary synchronous pulleys (303), the lower speed reducer motor (301) is fixed at the front end of one side of the support frame (1), the output shaft of the lower speed reducer motor (301) is inserted into the support frame (1) and is connected with the lower main shaft (302), the lower main shaft (302) is rotatably connected to one side of the support frame (1), two lower main synchronous pulleys (304) are arranged on the lower main shaft (302) at intervals, two lower auxiliary synchronous pulleys (303) are rotatably connected to the other side of the support frame (1), one lower auxiliary synchronous pulley (303) and one lower main synchronous pulley (304) are symmetrically arranged, and one lower synchronous belt (21) is arranged between the symmetrically arranged lower main synchronous pulley (304) and the lower auxiliary synchronous pulley (303), and two lower synchronous belts (21) constitute the lower transmission belt (6).

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