Tray transferring and conveying device

Abstract

The tray transferring and conveying device comprises a first conveying unit, a second conveying unit and a tray, the second conveying unit comprises a jacking mechanism, a horizontal conveying mechanism, a butt joint mechanism and a supporting frame, and the first conveying unit is in butt joint connection with the supporting frame through a butt joint structure; the jacking mechanism drives the horizontal conveying mechanism to move in the vertical direction relative to the supporting frame, after the first conveying unit and the second conveying unit are in butt joint, the jacking mechanism is switched to the second position from the first position, and a tray on the first conveying unit is moved to the horizontal conveying mechanism through the action of the jacking mechanism. The butt joint connection of the first conveying unit and the second conveying unit is completed through the butt joint mechanism, the trays placed on the first conveying unit are moved to the horizontal conveying mechanism of the second conveying unit by switching the position state of the jacking mechanism, transferring and conveying of the trays are completed, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This application is applied to the field of automated conveying, specifically to a pallet transfer conveying device Background Art

[0002] In the field of automated transportation, pallets, as carriers, need to be transferred between multiple devices. Sometimes manual transfer is required to move the pallets to the conveyor line. In the existing technology, pallets are usually placed on manually moved carriers such as trolleys. When the trolley is moved to the target conveyor line position, the pallets are moved from the trolley to the target conveyor line by manual handling or other robotic arm handling. Alternatively, a horizontal conveying mechanism needs to be installed on the trolley. After the trolley is moved to the position corresponding to the target conveyor line, the pallet is transferred to the target conveyor line through the horizontal conveying mechanism. This is extremely costly, time-consuming and labor-intensive. Any deviation during the docking process may cause the pallet to fall, resulting in economic losses, and there are high safety hazards. Summary of the Invention

[0003] In view of the above reasons, the present application discloses a pallet transfer conveying device, including a first conveying unit, a second conveying unit and a pallet, the second conveying unit including a lifting mechanism, a horizontal conveying mechanism, a docking mechanism and a support frame, the first conveying unit is docked with the support frame through the docking structure, the lifting mechanism drives the horizontal conveying mechanism to make vertical displacement relative to the support frame, when the lifting mechanism is in the first position, the conveying plane of the horizontal conveying mechanism is lower than the conveying plane of the first conveying unit, when the lifting mechanism is in the second position, the conveying plane of the horizontal conveying mechanism is higher than the conveying plane of the first conveying unit, after the first conveying unit and the second conveying unit complete docking, the lifting mechanism switches from the first position to the second position, and the pallet on the first conveying unit is moved to the horizontal conveying mechanism by the action of the lifting mechanism.

[0004] Preferably, the horizontal conveying mechanism includes a roller conveyor, the lifting mechanism includes a cylinder, the fixed end of the cylinder is fixedly connected to the support frame, the free end of the cylinder is vertically upwardly connected to the roller conveyor, and the support frame has a U-shaped horizontal opening accommodating portion, and the accommodating portion can accommodate at least part of the first conveying unit.

[0005] Preferably, the first conveying unit includes a free wheel group and a conveying frame, the pallet can be placed on the conveying frame, the free wheel group is arranged under the conveying frame, the docking mechanism is arranged in the accommodating portion, and the docking structure can be docked and connected with the conveying frame.

[0006] Preferably, the docking mechanism includes a fixed seat, a second cylinder and a pressure claw. The fixed seat is fixedly connected to the support frame inside the accommodating portion. The pressure claw can be driven by the second cylinder to rotate vertically relative to the fixed seat. When the pressure claw rotates to a preset position, the pressure claw can abut against the conveying frame and limit the displacement of the conveying frame.

[0007] Preferably, guide bars are provided on both sides of the conveying frame, and horizontally arranged free guide wheels are provided on both sides of the accommodating portion, and the guide wheels cooperate with the guide bars to guide the first conveying unit into the accommodating portion.

[0008] Preferably, transition guide plates extending outward are provided on both sides of the opening of the accommodating portion, and the guide wheels are provided on the transition guide plates.

[0009] Preferably, it further includes a first guide mechanism, which includes a linear bearing and a guide column. The linear bearing passes through the support frame in a vertical direction, and the guide column is sleeved on the linear bearing and connected to the roller conveyor.

[0010] Preferably, it also includes a second guide mechanism, which includes a gear and a rack, and the two racks are respectively arranged vertically downward on both sides of the conveying direction of the roller conveyor, and the two gears are arranged on the support frame through the bearing seat and the transmission shaft, and the gears are meshed and connected with the corresponding racks.

[0011] Preferably, a height limiting mechanism is included, which includes a height limiting bracket and a buffer. The height limiting mechanism is arranged on both sides of the support frame. The buffer is arranged downward from the top of the height limiting mechanism, and the buffer coincides with the vertical projection of the roller conveyor.

[0012] Preferably, the second conveying unit further includes a stopper, and the stopper is arranged on the roller conveyor.

[0013] The advantage of this application is that the first conveying unit and the second conveying unit are docked and connected through a docking mechanism, and the pallet placed on the first conveying unit is moved to the horizontal conveying mechanism of the second conveying unit by switching the position state of the lifting mechanism to complete the transfer and transportation of the pallet. The structure is simple and the cost is low.

[0014] Other specific features and specific advantages of the present application will be described in the subsequent description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by practicing the above-mentioned technology of the present disclosure.

[0015] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the second conveying unit of this application.

[0018] Figure 2 This is the main view of the second conveying unit of this application.

[0019] Figure 3 This is a side view of the second conveying unit of the present application.

[0020] Figure 4 This is a schematic structural diagram of the first conveying unit of this application.

[0021] Figure 5 This is the main view of the first conveying unit of this application.

[0022] Figure 6 This is a structural diagram of the docking mechanism of the present application in the non-docking state.

[0023] Figure 7 This is a structural diagram of the docking state of the docking mechanism of this application.

[0024] Figure 8 This is a structural diagram of an implementation status of this application.

[0025] Figure 9 This is a structural diagram of an implementation state of this application.

[0026] In the figure: 1. Support frame; 101. Accommodation part; 2. First cylinder; 3. Roller conveyor; 4. Docking mechanism; 5. Conveying frame; 501. Crossbeam; 6. Free wheel assembly; 7. Pallet; 8. Handle; 9. Fixed seat; 10. Second cylinder; 11. Pressure claw; 12. Buffer pad; 13. Guide bar; 14. Guide wheel; 15. Transition guide plate; 16. Linear bearing; 17. Guide column; 18. Gear; 19. Rack; 20. Drive shaft; 21. Bearing seat; 22. Height limit bracket; 23. Buffer; 24. Stopper; 25. Stopper bracket. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figures 1 to 5 、 Figure 8 and Figure 9 As shown, the support frame 1 is fixedly connected to the ground. The support frame 1 is formed by a number of profiles. A first cylinder 2 is provided on the support frame 1. The fixed end of the first cylinder 2 is fixedly connected to the support frame 1. The free end of the first cylinder 2 is vertically upward and fixedly connected to the bottom end of the roller conveyor 3. To ensure the stability of the device, four first cylinders 2 are respectively arranged at the bottom ends of both sides of the roller conveyor 3. The first cylinder 2 drives the roller conveyor 3 to move up and down in the vertical direction through telescoping. The roller conveyor 3 adopts short rollers. The support frame 1 has a U-shaped horizontal opening accommodating portion 101 along the conveying direction of the roller conveyor 3. The docking mechanism 4 is arranged at the support frame 1 inside the accommodating portion 101. The support frame 1, the roller conveyor 3, the docking mechanism 4 and the first cylinder 2 constitute a second conveying unit.

[0029] The conveying frame 5 is a rectangular parallelepiped frame. A freewheel assembly 6 is provided at the lower end of the conveying frame 5. The conveying frame 5 and the freewheel assembly 6 constitute the first conveying unit. The conveying frame 5 can be horizontally displaced relative to the ground via the freewheel assembly 6. The top of the conveying frame 5 is a flat surface, and the pallet 7 can be placed horizontally on the conveying frame 5. The width of one end of the conveying frame 5 is slightly smaller than the opening width of the accommodating portion 101. The conveying frame 5 can be moved into the accommodating portion 101. The crossbeam 501 of the conveying frame 5 relative to the docking mechanism can be docked with the docking mechanism 4, thereby completing the docking connection between the first conveying unit and the second conveying unit. Handles 8 can be provided on both sides of the conveying frame 5 to facilitate manual operation to complete movement.

[0030] When the first cylinder 2 is in the first position, that is, the free end of the first cylinder 2 is in the retracted state, the conveying plane height of the roller conveyor 3 is lower than the upper surface height of the conveying frame 5. When the first cylinder 2 is in the second position, that is, the free end of the first cylinder 2 is in the extended state, the conveying plane height of the roller conveyor 3 will be higher than the upper surface height of the conveying frame 5. If the conveying frame 5 and the docking mechanism 4 are in the docked state at this time, the first cylinder 2 is in the first position, the conveying frame 5 carrying the pallet will be located in the accommodating portion 101 and between the roller conveyor 3, and the pallet 7 on the conveying frame 5 is located above the roller conveyor 3. The pallet 7 does not contact the roller conveyor 3. The first cylinder 2 switches from the first position to the second position, driving the roller conveyor 3 to rise, and the conveying plane of the roller conveyor 3 will be higher than the upper surface of the conveying frame 5. The roller conveyor 3 will contact the edges on both sides of the pallet 7 and place the pallet 7 on the conveying plane of the roller conveyor 3. At this time, starting the roller conveyor 3 will drive the pallet 7 to be transported along the roller conveyor 3.

[0031] In some embodiments, as Figures 4 to 7 As shown, the docking mechanism 4 includes a fixed seat 9, a second cylinder 10 and a pressure claw 11. The fixed seat 9 is fixedly connected to the horizontal profile of the support frame 1 inside the accommodating portion 101. The second cylinder 10 can drive the pressure claw 11 to rotate vertically relative to the fixed seat 9, wherein the direction of the pressure claw 11 is set toward the opening direction close to the accommodating portion 101. When the pressure claw 11 is in a horizontal position under the drive of the second cylinder 10, the height of the lower surface of the pressure claw 11 is higher than the crossbeam 501 of the conveying frame 5, and the crossbeam 501 can Located below the pressure claw 11, when the pressure claw 11 is in a vertical position driven by the second cylinder 10, the pressure claw 11 will abut against the beam 501, pressing the beam 501, and the beam 501 cannot be displaced relative to the pressure claw 11. At this time, the first conveying unit and the second conveying unit cannot be displaced relative to each other and are in a docking connection state. When the docking connection state needs to be released, the second cylinder 10 drives the pressure claw 11 to return to the horizontal position, the pressure claw 11 does not abut against the beam 501, and the conveying frame 5 can be moved out of the accommodating portion 101.

[0032] In some embodiments, as Figures 6 and 7 As shown, a buffer pad 12 may be provided on the pressing claw 11 . The buffer pad 12 is elastic and plays a role in protecting the pressing claw 11 .

[0033] In some embodiments, as Figures 1 to 9As shown, guide bars 13 are horizontally arranged on both sides of the conveying frame 5, and the guide bars 13 are made of friction-resistant material. A plurality of guide wheels 14 are arranged on both sides of the accommodating portion 101 of the support frame 1 along the conveying direction of the roller conveyor 3. The guide wheels 14 are horizontally arranged through guide wheel brackets, and the guide wheels 14 can freely rotate horizontally relative to the guide wheel brackets. When the conveying frame 5 enters the accommodating portion 101, the guide wheels 14 will contact the guide bars 13 on the corresponding side, causing sliding friction, thereby guiding the process of the conveying frame 5 entering the accommodating portion 101, reducing friction, avoiding contact and collision between the conveying frame 5 and the support frame 1, and reducing noise.

[0034] In some embodiments, as Figures 1 to 9 As shown, transition guide plates 15 extending outward are provided on both sides of the opening of the accommodating portion 101. The transition guide plates 15 on both sides have a tendency to move away from each other at one end away from the accommodating portion 101. A number of guide wheels 14 are provided on the transition guide plates 15, which play a transition role before the conveying frame 5 enters the accommodating portion 101, thereby facilitating the conveying frame 5 to enter the accommodating portion 101.

[0035] In some embodiments, as Figures 1 to 3 As shown, the first guide mechanism includes a linear bearing 16 and a guide column 17. The linear bearing 16 passes through the support frame 1 in the vertical direction. The guide column 17 is sleeved in the linear bearing 16 and connected to the lower surface of the roller conveyor 3. The first guide mechanism vertically guides the up and down displacement of the roller conveyor 3. The position and number of the first guide mechanism can be determined according to actual needs and are not limited here.

[0036] In some embodiments, as Figures 1 to 3 As shown, the second wire mechanism includes a gear 18 and a rack 19. The two gears 18 are respectively arranged at both ends of the transmission shaft 20. The transmission shaft 20 is connected to the support frame 1 through a bearing seat 21. The transmission shaft 20 can rotate freely relative to the bearing seat 21. The two gears 18 rotate synchronously with the transmission shaft 20. The two racks 19 are respectively arranged vertically downward at the bottom ends on both sides of the conveying direction of the roller conveyor 3. The position of the gear 18 corresponds to the position of the rack 19. The gear 18 is meshed with the corresponding rack 19. During the lifting process of the roller conveyor 3, due to the number of first cylinders 2 and the uneven weight of the roller conveyor 3, there may be a situation where the lifting speed is not synchronized. By setting the gear 18 and the rack 19 as a guide mechanism, the synchronization of the gears 18 on both sides will ensure the synchronization of the lifting of the two sides of the roller conveyor 3, thereby preventing the occurrence of side tilting and jamming during the lifting process.

[0037] In some embodiments, as Figures 1 to 3As shown, the height limiting mechanism includes a height limiting bracket 22 and a buffer 23. The height limiting bracket 22 is an L-shaped metal frame, which is respectively arranged in the direction of both sides of the roller conveyor 3. The lower end thereof is fixedly connected to the support frame 1. The lower end of the height limiting bracket 22 is provided with a downward buffer 23. The buffer 23 coincides with the vertical projection of the roller conveyor 3. That is, when the roller conveyor 3 is lifted to a certain height under the action of the first cylinder 2, the roller conveyor 3 will contact the buffer 23 and be blocked by the buffer to prevent its vertical lifting height from being higher than the preset height. The height of the buffer 23 relative to the support frame 1 can be adjusted by adjusting the connection position of the height limiting bracket 22 and the support frame 1.

[0038] In some embodiments, as Figure 1 、 Figure 8 and Figure 9 As shown, the stopper 24 is arranged at one end of the roller conveyor 3 away from the opening of the accommodating portion 101 through the stopper bracket 25. The stopper 24 stops the pallet 7 entering the roller conveyor 3 at a preset position, and the stopping or releasing state of the pallet 7 on the roller conveyor 3 can be switched by switching the state.

[0039] The following is a brief description of the working process of this application.

[0040] The pallet 7 is placed on the conveying frame 5 and can move freely horizontally through the free wheel group 6. The operator moves the conveying frame 5 and the pallet 7 to the second conveying unit position, that is, to the accommodating portion 101 position of the support frame 1. At this time, the docking mechanism 4 is in a non-docked connection state, the pressure claw 11 is in a horizontal position, the first cylinder 2 is in the first position, and the conveying plane height of the roller conveyor 3 is lower than the upper surface of the conveying frame 5, that is, lower than the height of the pallet 7.

[0041] The conveying frame 5 and the pallet 7 are manually pushed into the accommodating portion 101, and the process is assisted by the transition guide plate 15, the guide bar 13 and the guide wheel 14. When the conveying frame 5 is completely placed in the accommodating portion 101, the docking mechanism 4 switches to the docking state, the pressure claw 11 presses the conveying frame 5, and the first cylinder 2 switches from the first position to the second position, driving the roller conveyor 3 to lift vertically upward. The roller conveyor 3 contacts and lifts the pallet 7 to move vertically upward to leave the conveying frame 5. During the lifting process, the first guide mechanism and the second guide mechanism play a vertical guiding role. After the pallet 7 is completely placed on the roller conveyor 3, the docking mechanism 4 is released from the docking state, and the operator moves the conveying frame 5 out of the accommodating portion 101. The stopper 24 is in the release state, and the pallet 7 can continue to run along the roller conveyor 3.

[0042] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the scope of protection of the present application.

Claims

1. A pallet transfer conveying device, characterized in that: It includes a first conveying unit, a second conveying unit and a pallet, the second conveying unit includes a lifting mechanism, a horizontal conveying mechanism, a docking mechanism and a support frame, the first conveying unit is docked with the support frame through the docking mechanism, the lifting mechanism drives the horizontal conveying mechanism to make vertical displacement relative to the support frame, when the lifting mechanism is in the first position, the conveying plane of the horizontal conveying mechanism is lower than the conveying plane of the first conveying unit, when the lifting mechanism is in the second position, the conveying plane of the horizontal conveying mechanism is higher than the conveying plane of the first conveying unit, after the first conveying unit and the second conveying unit complete docking, the lifting mechanism switches from the first position to the second position, and the pallet on the first conveying unit is moved to the horizontal conveying mechanism by the action of the lifting mechanism.

2. The pallet transfer conveying device according to claim 1, wherein: The horizontal conveying mechanism includes a roller conveyor, and the lifting mechanism includes a cylinder. The fixed end of the cylinder is fixedly connected to the support frame, and the free end of the cylinder is vertically connected to the roller conveyor. The support frame has a U-shaped horizontal opening accommodating portion, and the accommodating portion can accommodate at least part of the first conveying unit.

3. The pallet transfer conveying device according to claim 2, characterized in that: The first conveying unit includes a free wheel group and a conveying frame. The pallet can be placed on the conveying frame. The free wheel group is arranged below the conveying frame. The docking mechanism is arranged in the accommodating portion and can be docked and connected with the conveying frame.

4. The pallet transfer conveying device according to claim 3, characterized in that: The docking mechanism includes a fixed seat, a second cylinder and a pressure claw. The fixed seat is fixedly connected to the support frame inside the accommodating portion. The pressure claw can be rotated vertically relative to the fixed seat under the drive of the second cylinder. When the pressure claw rotates to a preset position, the pressure claw can abut against the conveying frame and limit the displacement of the conveying frame.

5. The pallet transfer conveying device according to claim 4, characterized in that: Guide bars are provided on both sides of the conveying frame, and horizontally placed guide wheels are provided on both sides of the accommodating portion. The guide wheels cooperate with the guide bars to guide the first conveying unit to enter the accommodating portion.

6. The pallet transfer conveying device according to claim 5, characterized in that: Transition guide plates extending outward are provided on both sides of the opening of the accommodating portion, and the guide wheels are provided on the transition guide plates.

7. The pallet transfer conveying device according to claim 3, characterized in that: It also includes a first guide mechanism, which includes a linear bearing and a guide column. The linear bearing passes through the support frame in a vertical direction, and the guide column is sleeved on the linear bearing and connected to the roller conveyor.

8. The pallet transfer conveying device according to claim 7, characterized in that: It also includes a second guide mechanism, which includes a gear and a rack. The two racks are respectively arranged vertically downward on both sides of the conveying direction of the roller conveyor. The two gears are arranged on the support frame through a bearing seat and a transmission shaft. The gears are meshed and connected with the corresponding racks.

9. The pallet transfer conveying device according to claim 3, characterized in that: It includes a height limiting mechanism, which includes a height limiting bracket and a buffer. The height limiting mechanism is arranged on both sides of the support frame. The buffer is arranged downward from the top of the height limiting bracket, and the buffer coincides with the vertical projection of the roller conveyor.

10. The pallet transfer conveying device according to claim 3, characterized in that: The second conveying unit further includes a stopper, which is arranged on the roller conveyor.

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