Top lift egg tray stacker

Abstract

The application discloses a jacking type egg tray stacking machine and relates to the technical field of egg tray stacking, which comprises a supporting rod and a supporting protrusion. The supporting protrusion supports the edge of an egg tray. The supporting protrusion is fixed on the side wall of the supporting rod and rotates around the axis of the supporting rod. When the supporting protrusion rotates above the supporting rod, the egg tray is stacked. When the supporting protrusion rotates below the supporting rod, the supporting protrusion releases the egg tray. A stepping motor drives the rotation of the egg tray. A driver and a transmission assembly are connected with the supporting rod through the transmission assembly and drive the supporting protrusion to rotate around the axis of the supporting rod. The application has the beneficial effects of ensuring smooth operation, optimizing the overall structure, completing the operation of stacking the egg tray without a complex operation mechanism, reducing the manufacturing and using costs, greatly reducing the moving distance of the egg tray through the quick extension and retraction of the telescopic cylinder and the rotation of the supporting rod and the supporting protrusion, and greatly improving the stacking efficiency.

Description

Technical Field

[0001] This invention relates to the field of egg tray palletizing technology, and more specifically, to a lifting egg tray palletizing machine. Background Technology

[0002] After grading and sorting, eggs need to be stacked again for easy transportation. In existing technologies, such as the one described in application CN202311770201.5, a second chain drive mechanism is used as the main drive mechanism, and a lifting device is used as the main mechanism to support the egg trays. A horizontal lifting and maintaining mechanism is used to maintain the stability of the egg trays during operation. While this mechanism can stack the egg trays, it has the following drawbacks: 1. During stacking, the egg trays must move around the second chain drive mechanism, specifically moving upwards, horizontally, and downwards, resulting in a long stacking path and low stacking efficiency; 2. Stacking requires the coordination of multiple complex mechanisms, leading to high manufacturing and usage costs. Summary of the Invention

[0003] To address the above deficiencies, this invention provides a lifting-type egg tray palletizing machine, which solves the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The lifting-type egg pallet palletizer includes a conveyor belt, a support frame, and egg pallets, and also includes;

[0006] The support rod and the supporting protrusion support the edge of the egg tray. The supporting protrusion is fixed to the side wall of the support rod and rotates around the axis of the support rod. When the supporting protrusion rotates above the support rod, the egg trays are stacked. When the supporting protrusion rotates below the support rod, the supporting protrusion releases the egg trays.

[0007] The telescopic cylinder and the stepper motor are used to extend and retract the egg tray and the supporting protrusion, causing relative movement in the vertical direction; the stepper motor drives the egg tray to rotate.

[0008] The driver and transmission assembly are connected to the support rod through the transmission assembly, which drives the supporting protrusion to rotate around the axis of the support rod.

[0009] Furthermore, the telescopic cylinder is mounted on the bracket, the stepper motor is mounted on the telescopic end of the telescopic cylinder, the telescopic end of the telescopic cylinder is equipped with a bearing, the outer ring of the bearing is equipped with an L-shaped rod, the side wall of the L-shaped rod is equipped with a gear, the rotating end of the stepper motor meshes with the gear, a U-shaped frame is mounted on one end of the L-shaped rod, and a connecting beam is mounted on the lower end of the U-shaped frame.

[0010] Furthermore, the support assembly includes a bearing sleeve installed at the lower end of the U-shaped frame. A connecting shaft is installed on the inner ring of the bearing sleeve. A pin is provided at one end of the connecting shaft, and a second bearing is installed at one end of the pin. One end of the support rod is installed on the second bearing, and a torsion spring is installed between the pin and the support rod. A limiting shaft and a limiting shaft are installed at one end of the connecting shaft, and the included angle between the extension lines of the limiting shaft and the limiting shaft is 90 degrees. An interference shaft is installed on the support rod, and the interference shaft is located between the limiting shaft and the limiting shaft. The torsion spring causes the supporting protrusion to tend to remain horizontal.

[0011] Furthermore, the driver is a motor, which is mounted on the side wall of the connecting beam. The transmission assembly includes a limiting tube mounted on the side wall of the connecting beam. The limiting tube has two pairs of tubes, and an L-shaped transmission rod is installed inside the limiting tube. One end of the L-shaped transmission rod is equipped with a rack that meshes with the motor. One end of the connecting shaft is equipped with a swing rod, and a connecting rod is installed between the swing rod and the L-shaped transmission rod.

[0012] Furthermore, a telescopic cylinder is installed at the lower end of the conveyor belt, a stepper motor is installed at the telescopic end of the telescopic cylinder, and a load-bearing plate is installed at the rotating end of the stepper motor.

[0013] Furthermore, the actuator is a hydraulic rod, which is mounted on the bracket. The transmission assembly includes a C-shaped rod mounted on the telescopic end of the hydraulic rod. A limit ring is installed on the side wall of the bracket, and the C-shaped rod is inserted into the limit ring. A rack is installed at the lower end of the C-shaped rod. A horizontal rod is installed on the inner side of the bracket. There are two pairs of horizontal rods. A ring is installed at one end of the horizontal rod. A support rod passes through the ring. A driven wheel is located in the middle of the support rod. The supporting protrusion is positioned to avoid the driven wheel and the ring. A toothed pulley is located on the outer side of the bracket. A transmission belt is installed between the toothed pulley and the driven wheel. A driven wheel that meshes with the rack is installed on one side of the toothed pulley.

[0014] Furthermore, the supporting protrusions are made of rubber.

[0015] Furthermore, the outer ring of the egg tray is equipped with a square-shaped outer frame.

[0016] The beneficial effects of this invention are: compared with the prior art, while ensuring stable operation, the overall structure is optimized, and the operation of palletizing egg trays can be completed without complex operating mechanisms, thereby reducing manufacturing and usage costs;

[0017] By rapidly extending and retracting the telescopic cylinder, combined with the rotation of the support rod and the supporting protrusion, the moving distance of the egg trays can be greatly reduced to complete the palletizing. In practical applications, the egg trays only need to be moved by the thickness of 1 to 2 layers of egg trays to complete the palletizing, which greatly improves the palletizing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the lifting egg tray palletizing machine described in this invention;

[0019] Figure 2 This is a schematic diagram of Embodiment 1 of the transmission component;

[0020] Figure 3 This is a schematic diagram of the longitudinal section of bearing one;

[0021] Figure 4 This is a schematic diagram showing the positional relationship between the interference axis and the first limiting axis;

[0022] Figure 5 This is a schematic diagram of Embodiment 2 of the transmission component;

[0023] Figure 6 This is a schematic diagram of rack two;

[0024] Figure 7 This is a schematic diagram of the support rod and the supporting protrusion;

[0025] In the diagram: 1. Conveyor belt; 2. Support frame; 3. Egg tray; 4. Support rod; 5. Supporting protrusion; 6. Telescopic cylinder; 7. Stepper motor; 8. Driver; 21. Bearing 1; 22. L-shaped rod; 23. Gear 1; 24. U-shaped frame; 25. Connecting beam; 31. Bearing sleeve; 32. Connecting shaft; 33. Pin; 34. Bearing 2; 35. Torsion spring; 36. Limiting shaft 1; 37. Limiting shaft 2 38. Interference shaft; 41. Motor 1; 42. Limiting tube; 43. L-shaped transmission rod; 44. Rack 1; 45. Swing rod; 46. Connecting rod; 51. Load-bearing plate; 61. Hydraulic rod; 62. C-shaped rod; 63. Limiting ring; 64. Rack 2; 65. Horizontal rod; 66. Circular ring; 67. Driven wheel 1; 68. Toothed pulley; 69. Transmission belt; 70. Driven wheel 2; 71. U-shaped outer frame. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] This application provides a lifting-type egg pallet palletizer; please refer to [reference needed]. Figures 1-7 Includes conveyor belt 1, support frame 2, and egg tray 3, and also includes;

[0028] The support rod 4 and the supporting protrusion 5 support the edge of the egg tray 3. The supporting protrusion 5 is fixed to the side wall of the support rod 4 and rotates around the axis of the support rod 4. When the supporting protrusion 5 rotates above the support rod 4, the egg tray 3 is stacked. When the supporting protrusion 5 rotates below the support rod 4, the supporting protrusion 5 releases the egg tray 3.

[0029] The telescopic cylinder 6 and the stepper motor 7 are used to extend and retract the egg tray 3 and the supporting protrusion 5, causing relative movement in the vertical direction; the stepper motor 7 drives the egg tray 3 to rotate.

[0030] The driver 8 and the transmission assembly are connected to the support rod 4 through the transmission assembly, which drives the supporting protrusion 5 to rotate around the axis of the support rod 4.

[0031] In practical applications, in the initial state, the distance between the supporting protrusion 5 and the conveyor belt 1 is greater than the height of the egg tray 3.

[0032] Conveyor belt 1 supports and transports egg trays 3. A single-layer egg tray 3 moves from one end of conveyor belt 1 to the position of support 2. According to the sensor setting, when the center of egg tray 3 coincides with the axis of telescopic cylinder 6, the telescopic cylinder 6 is controlled to extend, so that the support rod 4 and the supporting protrusion 5 move relative to the egg tray 3. During the process of the supporting protrusion 5 moving from above the egg tray 3 to below the egg tray 3, it is driven by driver 8 and transmission assembly. The supporting protrusion 5 rotates upward 90 degrees and then resets, and the first layer of egg tray 3 falls on the supporting protrusion 5. Then the stepper motor 7 is controlled to rotate, which indirectly drives the egg tray 3 to rotate.

[0033] Repeat the above operation so that egg trays 3 can be stacked crosswise;

[0034] After the multi-layer egg tray 3 falls on the supporting protrusion 5, the telescopic cylinder 6 is controlled to work, and the supporting protrusion 5 moves to a position close to the conveyor belt 1 until the stacked egg tray 3 is placed on the conveyor belt 1. Then the driver 8 is controlled to work, and the supporting protrusion 5 rotates downward 90 degrees to release the egg tray 3. The conveyor belt 1 then transports the stacked egg tray 3 away.

[0035] Achieve efficient egg tray palletizing 3.

[0036] Example 1, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 Telescopic cylinder 6 is mounted on bracket 2. Stepper motor 7 is mounted on the telescopic end of telescopic cylinder 6. Bearing 21 is mounted on the telescopic end of telescopic cylinder 6. L-shaped rod 22 is mounted on the outer ring of bearing 21. Gear 23 is mounted on the side wall of L-shaped rod 22. The rotating end of stepper motor 7 meshes with gear 23. U-shaped frame 24 is mounted on one end of L-shaped rod 22. Connecting beam 25 is mounted on the lower end of U-shaped frame 24.

[0037] In practical applications, the telescopic cylinder 6 can extend and retract to drive the L-shaped rod 22, U-shaped frame 24 and connecting beam 25 to move vertically. The stepper motor 7 can rotate 90 degrees forward or backward to drive the U-shaped frame 24 to rotate horizontally. The support rod 4 and the supporting protrusion 5 follow the movement of the U-shaped frame 24.

[0038] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The system includes a support assembly, which includes a bearing sleeve 31 installed at the lower end of the U-shaped frame 24. A connecting shaft 32 is installed on the inner ring of the bearing sleeve 31. A pin 33 is provided at one end of the connecting shaft 32. A bearing 34 is installed at one end of the pin 33. One end of the support rod 4 is installed on the bearing 34. A torsion spring 35 is installed between the pin 33 and the support rod 4. A limiting shaft 36 and a limiting shaft 37 are installed at one end of the connecting shaft 32. The angle between the extension lines of the limiting shaft 36 and the limiting shaft 37 is 90 degrees. An interference shaft 38 is installed on the support rod 4. The interference shaft 38 is located between the limiting shaft 36 and the limiting shaft 37. The torsion spring 35 gives the supporting protrusion 5 a tendency to remain horizontal.

[0039] In practical applications, the bearing sleeve 31 enables the connecting shaft 32 to rotate stably. The pin 33 and bearing 34 allow relative rotation between the support rod 4 and the connecting shaft 32. The interference shaft 38, the first limiting shaft 36, and the second limiting shaft 37 ensure that the support rod 4 and the interference shaft 38 can only rotate within the range defined by the first limiting shaft 36 and the second limiting shaft 37. The torsion spring 35 ensures that the supporting protrusion 5 tends to remain horizontal.

[0040] Step 1;

[0041] The telescopic cylinder 6 extends, indirectly driving the supporting protrusion 5 from above the egg tray 3 to below the egg tray 3. During this process, when the supporting protrusion 5 contacts the egg tray 3 below, the telescopic cylinder 6 continues to extend, and the support rod 4 and the supporting protrusion 5 continue to move downward. The supporting protrusion 5 overcomes the elastic force of the torsion spring 35 and is forced to rotate upward 90 degrees to allow the first egg tray 3 to pass through. After the egg tray 3 passes through, it returns to its original position under the elastic force of the torsion spring 35.

[0042] Step Two;

[0043] The telescopic cylinder 6 shortens, causing the support rod 4 and the supporting protrusion 5 to move upward and return to the initial position. The egg tray 3 on the supporting protrusion 5 is in a suspended state, and the stepper motor 7 is controlled to rotate 90 degrees.

[0044] Step 3;

[0045] Conveyor belt 1 moves the second egg tray 3 to a position that overlaps with the first egg tray 3. Telescopic cylinder 6 extends, causing the first egg tray 3 to sit on the second egg tray 3. Repeat the above operation, and the supporting protrusion 5 moves from above the egg tray 3 to below the egg tray 3 to achieve stacking. After stacking to the specified number of layers;

[0046] The telescopic cylinder 6 extends until the lower end of the egg tray 3 contacts the conveyor belt 1, and the conveyor belt 1 transports the stacked egg tray 3 to the next workstation.

[0047] During the above operation, the connecting shaft 32 remains stationary.

[0048] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The driver 8 is a motor 41, which is mounted on the side wall of the connecting beam 25. The transmission assembly includes a limiting tube 42 mounted on the side wall of the connecting beam 25. The limiting tube 42 has two pairs of tubes, and an L-shaped transmission rod 43 is provided inside the limiting tube 42. A rack 44 that meshes with the motor 41 is installed at one end of the L-shaped transmission rod 43. A swing rod 45 is installed at one end of the connecting shaft 32, and a connecting rod 46 is installed between the swing rod 45 and the L-shaped transmission rod 43.

[0049] In practical applications, through the configuration of motor 41, L-shaped transmission rod 43, swing rod 45 and connecting rod 46, when motor 41 is not working, swing rod 45 and connecting shaft 32 are in a stable state; when the upper egg tray 3 is stacked on the lower egg tray 3, motor 41 is controlled to rotate forward, driving rack 44 and L-shaped transmission rod 43 to move in opposite directions, and through connecting rod 46, swing rod 45 swings 90 degrees, while actively driving the supporting protrusion 5 to swing downward 90 degrees to avoid egg tray 3 and release the stacked egg tray 3;

[0050] After the supporting protrusion 5 moves to the initial position, motor 41 reverses, and the supporting protrusion 5 is in a horizontal state, ready for the next stacking operation.

[0051] Example 2, refer to Figure 5 , Figure 6 , Figure 7 The telescopic cylinder 6 is installed at the lower end of the conveyor belt 1, the stepper motor 7 is installed at the telescopic end of the telescopic cylinder 6, and the rotating end of the stepper motor 7 is equipped with a load-bearing plate 51.

[0052] In practical applications, during the palletizing process, the height of the support rod 4 and the supporting protrusion 5 remains unchanged; by extending the telescopic cylinder 6, the load-bearing plate 51 is lifted, and the egg tray 3 on the conveyor belt 1 is moved onto the supporting protrusion 5.

[0053] Reference Figure 5 , Figure 6 , Figure 7The actuator 8 is a hydraulic rod 61, which is mounted on the bracket 2. The transmission assembly includes a C-shaped rod 62 mounted on the telescopic end of the hydraulic rod 61. A limit ring 63 is installed on the side wall of the bracket 2, and the C-shaped rod 62 is inserted into the limit ring 63. A rack 64 is installed at the lower end of the C-shaped rod 62. A horizontal rod 65 is installed on the inner side of the bracket 2. There are two pairs of horizontal rods 65. A ring 66 is installed at one end of the horizontal rod 65. The support rod 4 passes through the ring 66. A driven wheel 67 is provided in the middle of the support rod 4. The supporting protrusion 5 is set to avoid the positions of the driven wheel 67 and the ring 66. A toothed pulley 68 is provided on the outer side of the bracket 2. A transmission belt 69 is installed between the toothed pulley 68 and the driven wheel 67. A driven wheel 70 that meshes with the rack 64 is installed on one side of the toothed pulley 68.

[0054] In practical applications, when the hydraulic rod 61 extends or retracts, it can drive the shaped rod 62 and the rack 64 to move vertically. The movement of the rack 64 can drive the driven wheel 70 and the toothed pulley 68 to rotate. Through the transmission belt 69, the driven wheel 67 and the supporting protrusion 5 can be driven to rotate.

[0055] As required, the supporting protrusion 5 is initially in a horizontal position, which supports the egg tray 3; the supporting protrusion 5 is tilted upward by 90 degrees to facilitate the stacking of multiple egg trays 3 together; the supporting protrusion 5 is tilted downward by 90 degrees to facilitate the release of the stacked egg trays 3.

[0056] Specifically, the steps are as follows;

[0057] Step 1;

[0058] When the first egg tray 3 moves to be aligned with the axis of the telescopic cylinder 6, the telescopic cylinder 6 is extended, and the supporting plate 51 lifts the first egg tray 3 above the supporting protrusion 5. During this process, the supporting protrusion 5 is in an active upward rotation state, and then returns to a horizontal position; the telescopic cylinder 6 shortens and returns to its original position.

[0059] Step Two;

[0060] Conveyor belt 1 moves the second egg tray 3 to the position of the first egg tray 3. Telescopic cylinder 6 extends, and support plate 51 lifts the second egg tray 3 away from conveyor belt 1. Then, control stepper motor 7 to rotate 90 degrees and lift the egg tray 3 above the support protrusion 5. During this process, the second egg tray 3 lifts the first egg tray 3 to achieve stacking.

[0061] Repeat the above steps to stack multiple egg trays together in 3-packs.

[0062] After the last egg tray 3 is stacked, the supporting protrusion 5 deflects downward by 90 degrees, the telescopic cylinder 6 shortens, and the stacked egg tray 3 is released onto the conveyor belt 1 and transferred to the next process via the conveyor belt 1.

[0063] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The supporting protrusion 5 is made of rubber.

[0064] In practical applications, the support protrusion 5 is made of rubber, which helps to increase the friction between the egg tray 3 and the support protrusion 5 and improve stability.

[0065] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The outer ring of the egg tray 3 is provided with a square-shaped outer frame 71.

[0066] In practical applications, the square-shaped outer frame 71 facilitates the support of the protrusion 5 on the egg tray 3, and the outline geometry of the egg tray 3 is square.

Claims

1. A jacking type egg tray stacker comprising a conveyor (1), a support (2) and an egg tray (3), characterized in that, Also include; Supporting rod (4) and supporting convex (5), supporting convex (5) holds the edge of egg tray (3), supporting convex (5) is fixedly arranged in the side wall of supporting rod (4), supporting convex (5) rotates around the axis of supporting rod (4); when supporting convex (5) rotates above supporting rod (4), egg tray (3) is stacked; when supporting convex (5) rotates below supporting rod (4), supporting convex (5) releases egg tray (3); Telescopic cylinder (6) and step motor (7), the relative motion of egg tray (3) and supporting convex (5) occurs in the vertical direction by telescopic cylinder (6) telescoping; step motor (7) drives egg tray (3) to rotate; Driver (8) and transmission assembly, driver (8) is connected with supporting rod (4) through transmission assembly, which drives supporting convex (5) to rotate around the axis of supporting rod (4); Telescopic cylinder (6) is installed on bracket (2), step motor (7) is installed on the telescopic end of telescopic cylinder (6), the telescopic end of telescopic cylinder (6) is provided with bearing one (21), the outer ring of bearing one (21) is provided with L-shaped rod (22), the side wall of L-shaped rod (22) is provided with gear one (23), the rotating end of step motor (7) is engaged with gear one (23), one end of L-shaped rod (22) is provided with U-shaped frame (24), the lower end of U-shaped frame (24) is provided with connecting beam (25); It includes a supporting assembly, the supporting assembly includes a bearing sleeve (31) installed at the lower end of the U-shaped frame (24), a connecting shaft (32) is installed at the inner ring of the bearing sleeve (31), a pin shaft (33) is provided at one end of the connecting shaft (32), a bearing two (34) is installed at one end of the pin shaft (33), one end of the supporting rod (4) is installed on the bearing two (34), and a torsion spring (35) is installed between the pin shaft (33) and the supporting rod (4); one end of the connecting shaft (32) is provided with a limiting shaft one (36) and a limiting shaft two (37), the included angle of the extending lines of the limiting shaft one (36) and the limiting shaft two (37) is 90 degrees, an interference shaft (38) is installed on the supporting rod (4), and the interference shaft (38) is located between the limiting shaft one (36) and the limiting shaft two (37); the torsion spring (35) makes the supporting convex (5) have a tendency to keep horizontal; The driver (8) is a motor one (41), the motor one (41) is installed on the side wall of the connecting beam (25), the transmission assembly includes a limiting tube (42) installed on the side wall of the connecting beam (25), the limiting tube (42) is provided with two pairs, the limiting tube (42) is provided with an L-shaped transmission rod (43) inside, one end of the L-shaped transmission rod (43) is provided with a rack one (44) engaged with the motor one (41); one end of the connecting shaft (32) is provided with a swing rod (45), and a connecting rod (46) is installed between the swing rod (45) and the L-shaped transmission rod (43).

2. The jacking egg tray stacker according to claim 1, characterized in that, The supporting convex (5) is made of rubber material.

3. The jacking egg tray stacker according to claim 1, characterized in that, The outer ring of the egg tray (3) is provided with a square frame (71).

Images