A high-speed automated box packing production line

Abstract

This invention belongs to the field of automated packaging production line technology, specifically a high-speed automated box-packing production line, including a packing machine, a storage facility for storing and transferring materials to be boxed, a temporary conveyor line for storing and transferring accessories, several robots, a self-balancing mechanism, and a drive mechanism. By setting up a double-layer temporary conveyor line in conjunction with a carrier flow system, the upper and lower conveyor belts physically isolate the accessories to be used from the empty carriers. With the closed-loop flow and sequential supply of the carriers, it ensures that each accessory is precisely matched with the corresponding pallet box, avoiding the risk of mixed materials. At the same time, combined with the self-balancing mechanism and vibration drive mechanism, the self-balancing mechanism uses the mass difference between the main and auxiliary counterweights to drive the lifting seat to move in the opposite direction, and recovers the vibration energy of the production line itself through the vibration transmission rod, providing power for the resetting of the impact rod and the main counterweight. The fully automated flow of the carrier between the two conveyor belts can be completed without additional electric drive, reducing energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of automated packaging production lines, specifically a high-speed automated box packing production line. Background Technology

[0002] High-speed automated cartoning production line is an automated system that integrates functions such as material conveying, positioning, gripping, cartoning and sealing. It is widely used in logistics, manufacturing and other industries, aiming to achieve efficient and continuous packaging operations from raw materials to finished boxes.

[0003] Existing packing technologies mostly use single-layer conveyor lines with manual assistance or simple robotic arm operation modes. Material storage relies on ordinary shelves, and there is no dedicated temporary storage and return structure for palletized box accessories. The actions of picking up and placing accessories, filling materials, and resetting the box are performed independently step by step, relying on manual labor or fixed power drive devices to complete the connection of each link.

[0004] In actual production scenarios, taking multi-layered collapsible box packing as an example, the collapsible box contains multiple structures such as a base, layered bottom supports, and a box lid. It is necessary to first unpack the box and remove the layered bottom supports and the box lid, then fill the materials in two layers, and finally reposition the accessories and pack them. In the existing technology, due to the large variety of accessories and the need to repack them in a specific order, if the temporarily removed accessories are randomly piled up or only transported by ordinary conveyor belts, it is very easy to cause the accessories to be confused or disordered, which will lead to packing errors or production interruptions. The carrier used for temporary storage of accessories needs to frequently move between the working layer and the return layer. The existing technology mostly relies on independent electric lifting mechanisms to drive the carrier to change layers. In high-speed continuous production, the lifting mechanism needs to be frequently started and stopped to respond to the cycle time, resulting in a significant increase in energy consumption.

[0005] Therefore, the present invention provides a high-speed automated packaging production line. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A high-speed automated box-packing production line is used to pack lid-type collapsible boxes. The collapsible box includes a base and accessories. The high-speed automated box-packing production line includes a packing machine. The inlet side of the packing machine is provided with a collapsible box feeding mechanism and a material feeding mechanism. It also includes: a storage mechanism, which is connected to the inlet of the material feeding mechanism, for storing and transferring materials to be packed; a temporary conveyor line for storing and transferring accessories; and several robots for picking up and placing accessories and materials. The entire collapsible box to be packed moves on the collapsible box feeding mechanism. Materials taken from the storage mechanism move along the material feeding mechanism. During the movement, the robots take out accessories from the collapsible box and place them on the temporary conveyor line. After loading the material into the base, the robots take the accessories from the temporary conveyor line and put them back on the base. The collapsible box containing the material enters the packing machine for packing.

[0008] Preferably, the storage facility adopts a two-layer single shuttle automated warehouse structure. The storage facility includes a frame, in which two storage locations and a track layer are provided. The storage locations are used to store materials, and the track layer is located between the upper and lower storage locations. A shuttle is provided in the track layer, and the shuttle is equipped with a fork for storing and retrieving materials. The side wall of the frame is equipped with a hoist for transferring materials across layers.

[0009] Preferably, the temporary conveyor line includes upper and lower conveyor belts and a lifting mechanism. Several carriers for carrying accessories are placed on the conveyor belts. The lifting mechanism is used to control the movement of the carriers between the two conveyor belts. The robot performs the work of picking up and placing accessories on the upper carrier.

[0010] Preferably, the lifting mechanism includes: lifting platforms respectively disposed at both ends of the conveyor belt; lifting seats slidably disposed on the lifting platforms; a tray rotatably disposed on the top of the lifting seats, through which the carrier flows between the two layers of the conveyor belt; and a pull rope assembly, through which the two lifting seats move synchronously in opposite directions.

[0011] Preferably, the lifting mechanism further includes: a trigger on the lifting platform, wherein the tray carrying the vehicle moves to contact the trigger and deflects, causing the vehicle to slide onto the conveyor belt; and a support spring and a limiting step on the lifting seat.

[0012] Preferably, it further includes a self-counterweight mechanism, which comprises: a support disposed on one side of the lifting platform, the support having a groove; a main counterweight slidably disposed in the groove; a mating groove disposed on the tray for receiving the main counterweight; when the lifting platform moves down from the position of the upper conveyor belt, the main counterweight falls into the mating groove and drives the other lifting platform to move up, and before the tray moves down to contact the trigger, the main counterweight separates from the tray; a striker slidably disposed at the bottom end of the groove, the striker being used to push the main counterweight to move up and reset, the striker having an energy storage spring; and a baffle movably inserted into the groove, the baffle having a reset spring, the baffle extending to the outside of the support, the baffle having a one-way structure, the baffle blocking the main counterweight above the tray.

[0013] Preferably, it further includes a drive mechanism, which includes: a toothed segment disposed on the side wall of the impact rod; a vibration transmission rod connected to the vibration point in the temporary conveyor line; a movable seat slidably disposed on the vibration transmission rod, the movable seat being provided with a positioning spring; and a drive pawl disposed on the movable seat. During the vibration of the vibration transmission rod, the impact rod is driven to move downward through the engagement of the drive pawl and the gear.

[0014] Preferably, the drive mechanism further includes: an adjusting plate movably inserted into the support, the top end of the adjusting plate being inserted into the groove and located above the impact rod, the top end of the adjusting plate being provided with a ramp, and the bottom end of the adjusting plate being inserted into the movable seat; and a check pawl provided on the adjusting plate, the check pawl engaging with the tooth segment to prevent the impact rod from moving upward.

[0015] Preferably, the tray is inclined on the lifting seat, and the driving mechanism further includes a toggle member on the tray. After the tray rotates, the toggle member drives the baffle to move to the outside of the slide groove.

[0016] Preferably, the self-balancing mechanism further includes: an auxiliary counterweight disposed on another of the trays, wherein the weight of the main counterweight is greater than the weight of the auxiliary counterweight.

[0017] The beneficial effects of this invention are as follows: 1. The high-speed automated carton packing production line of this invention, by setting up a double-layer temporary conveyor line in conjunction with a carrier flow system, physically isolates the parts to be used from the empty carriers through the upper and lower conveyor belts. Combined with the closed-loop flow and sequential supply of the carriers, it ensures that each part is precisely matched with its corresponding collapsible box, avoiding the risk of mixed materials. Simultaneously, by combining a self-balancing mechanism and a vibration drive mechanism, the self-balancing mechanism uses the mass difference between the main and auxiliary counterweights to drive the lifting seat in the opposite direction, and recovers the vibration energy of the production line itself through a vibration transmission rod, providing power for the resetting of the impact rod and the main counterweight. This allows for fully automated flow of the carriers between the two conveyor belts without additional electric drive, significantly reducing energy consumption. Furthermore, the modular structure design facilitates production line expansion and maintenance, adapting to the high-speed carton packing production needs of different collapsible box specifications.

[0018] 2. The high-speed automated packaging production line of the present invention adopts a double-layer structure and lifting mechanisms at both ends of the temporary storage conveyor line, forming a closed-loop carrier system with upper-layer feeding and lower-layer return. This physically isolates the parts to be used from the empty carriers in space, which not only avoids the risk of mixing materials, but also expands the space in the vertical direction. It realizes the functions of temporary storage of parts and return of carriers without increasing the horizontal floor area. It is especially suitable for compact production line layouts and improves the utilization rate of the site.

[0019] 3. The high-speed automated packaging production line of the present invention adopts a two-layer single shuttle warehouse structure, with the shuttle in the middle track layer and the side wall elevator, realizing the automatic storage and retrieval of material boxes and cross-layer transfer, and can be seamlessly connected with the material feeding mechanism; the compact warehouse is automatically scheduled by the warehouse management system, realizing high-density storage within a limited height, further reducing the overall floor area of ​​the production line, while ensuring the continuity and accuracy of material supply. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 It is a partial 3D view of the warehouse structure; Figure 3 This is a 3D view of the temporary conveyor line; Figure 4 This is a partial exploded view of the temporary conveyor line; Figure 5 This is an exploded view of the pallet and main counterweight. Figure 6 This is an exploded view of a single pallet and lifting platform; Figure 7 This is a 3D diagram of the self-balancing mechanism and the drive mechanism; Figure 8This is a partial schematic diagram showing the working state of the support, main counterweight, and vibration transmission rod. Figure 9 These are exploded diagrams of the baffle, adjusting plate, vibration transmission rod, and impact rod; In the diagram: 1. Packing machine; 2. Pallet box feeding mechanism; 3. Material feeding mechanism; 4. Storage mechanism; 41. Frame; 42. Shuttle car; 5. Temporary conveyor line; 51. Conveyor belt; 52. Lifting mechanism; 521. Lifting platform; 522. Lifting seat; 523. Pallet; 524. Pull rope assembly; 525. Trigger; 526. Support spring; 527. Limiting step; 53. Carrier; 6. Robot; 7. Self-counterweight mechanism; 71. Support; 72. Slide; 73. Main counterweight; 74. Mating groove; 75. Impact bar; 76. Energy storage spring; 77. Baffle; 78. Return spring; 79. Secondary counterweight; 8. Drive mechanism; 81. Tooth segment; 82. Vibration transmission rod; 83. Movable seat; 84. Drive pawl; 85. Adjusting plate; 86. Check pawl; 87. Actuating element. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0023] like Figure 1-2 As shown in the embodiment of the present invention, a high-speed automated box packing production line is used to pack lid-type collapsible boxes. The collapsible box includes a base and accessories. The high-speed automated box packing production line includes a packing machine 1. The inlet side of the packing machine 1 is provided with a collapsible box feeding mechanism 2 and a material feeding mechanism 3. It also includes a storage mechanism 4, a temporary conveyor line 5 and several robots 6.

[0024] Specifically, both the pallet box feeding mechanism 2 and the material feeding mechanism 3 can be conveyor belts. The pallet box feeding mechanism 2, the material feeding mechanism 3, and the temporary conveyor line 5 are preferably arranged in parallel. The end of the pallet box feeding mechanism 2 is connected to the inlet of the packing machine. The robotic arms include robotic arm one, robotic arm two, and robotic arm three, which can use a suction cup structure for gripping. Robotic arm one and robotic arm three are located between the pallet box feeding mechanism 2 and the temporary conveyor line 5, and are distributed sequentially along the material conveying direction. Robotic arm two is located next to the material feeding mechanism 3. The packing machine 1 can be a packing machine equipped with a turntable to perform crisscross packing.

[0025] The packing process for multi-layer collapsible crates is basically the same as that for two-layer collapsible crates. For ease of understanding, this explanation uses a two-layer collapsible crate as an example. A collapsible crate includes a base and a lid. The base has a layered bottom support that divides the internal space of the crate into upper and lower layers. The layered bottom support and lid are collectively referred to as accessories. Before packing, pre-produced collapsible crates are transported to the packing production line in an assembled form. Therefore, during packing, the collapsible crate needs to be opened and unpacked, then two layers of product materials are loaded, the crate is closed, and finally, the final packaging is carried out, as detailed below: Start the belt conveyor in the pallet box feeding mechanism 2 and the material feeding mechanism 3, place the entire pallet box on the belt conveyor of the pallet box feeding mechanism 2 in sequence, and place the material in the storage mechanism 4 on the belt conveyor of the material feeding mechanism 3 in sequence. The pallet box and the material are transported along the belt conveyor towards the packing machine 1. During the transport process, robot arm one sequentially removes the lid and layered base of the pallet box and places them on the temporary conveyor line 5, while the base remains on the conveyor belt of the pallet box loading mechanism 2. Robot arm two picks up materials from the material loading mechanism 3 and places them into the pallet box. After the lower layer of the pallet box is full of materials, robot arm three picks up the layered base from the temporary conveyor line 5 and places it into the base. Robot arm two continues to pick up materials from the material loading mechanism 3 and place them into the pallet box. After the upper layer of the pallet box is full of materials, robot arm three picks up the lid and places it on top of the base. Then, the conveyor belt transports the pallet box to the strapping machine, which performs a crisscross packing of the pallet box, completing the packing process. In this way, the fully automated production of pallet box packing and strapping is achieved.

[0026] It should be noted that, depending on specific production needs, the following structures can also be set up, such as: configuring a sealing and pressing mechanism at the packing point of the conveyor belt to reduce the impact of deformation around the perimeter of the box on the sealing action; and positioning the box by taking pictures with a 2D camera when it is moved to the unpacking point.

[0027] like Figure 1-2 As shown, the storage facility 4 adopts a two-layer single shuttle car 42 three-dimensional warehouse structure. The storage facility 4 includes a frame 41, which has two layers of storage locations and a track layer. The track layer is equipped with shuttle cars 42.

[0028] Specifically, the warehousing institution 4 is a compact two-story single-shuttle 42 stereoscopic warehouse that supports the automated packing production line, responsible for the full-automatic storage and feeding of the products to be packed. It is connected to the material feeding mechanism 3, and all actions are automatically scheduled by the warehouse management system. The overall framework 41 is built with aluminum profile modular frameworks 41, equipped with adjustable floor bolts at the bottom for horizontal adjustment and shock absorption, carrying all components and can be extended in length and storage locations as needed. Inside the framework 41, there are upper and lower double-layer symmetrical storage locations separated by an intermediate track layer for high-density storage of standard material boxes. The materials are loaded into the material boxes, and the upper and lower storage locations are aligned with the working height of the intermediate track fork. A horizontal shuttle 42 with a bidirectional telescopic fork runs on the intermediate track layer, achieving high-precision horizontal movement through gear-rack transmission. By extending the fork upward or downward, the access to the material boxes in the upper and lower storage locations can be completed. On the right side of the framework 41, there is a vertical elevator connecting the bottom-level access and the intermediate track layer, responsible for the cross-layer transfer of the material boxes. The bottom-level access integrates a pneumatic push-pull mechanism and photoelectric sensors to achieve the automatic transfer of the material boxes between the warehousing institution 4 and the material feeding mechanism 3. The human-machine operation terminal, electrical control cabinet, and built-in warehouse management system on the top of the framework 41 together constitute the control system, responsible for inventory management, task scheduling, equipment status monitoring, and real-time communication with the packing production line, ensuring the full-process automated operation.

[0029] The working process of the warehousing institution 4 is as follows: Before production, the standard material boxes of the products to be packed are scanned and placed at the bottom-level access. The elevator vertically transfers them to the intermediate track layer. The single horizontal shuttle 42 uses the bidirectional telescopic fork to store the material boxes in the upper or lower storage locations assigned by the system and updates the inventory. During production, after the warehousing institution 4 receives the material demand signal from the packing line, the shuttle 42 travels to the target storage location, extends the fork upward or downward to take out the corresponding material box, returns to the elevator, transfers the material box, and the elevator lowers the material box to the bottom level, and it is pushed by the pneumatic mechanism to the belt line of the material feeding mechanism 3. The materials in the material box are transferred to the belt line by means such as dumping or mechanical hand grasping to complete the feeding. When the products in the material box are taken out, the belt line runs in the reverse direction to send the empty box back to the access, and the elevator sends the empty box to the intermediate layer again, and the shuttle 42 stores it in the designated empty box storage location, waiting to be filled and used next time.

[0030] As Figure 3-4 shown, the temporary storage conveyor line 5 includes upper and lower conveyor belts 51 and a lifting mechanism 52. A number of carriers 53 for carrying accessories are placed on the conveyor belt 51.

[0031] Specifically, the upper and lower conveyor belts 51 can operate synchronously in opposite directions through the chain belt assembly, that is, the carrier 53 on the upper conveyor belt 51 moves to the right, and the carrier 53 on the lower conveyor belt 51 moves to the left; the conveyor belt 51 is equipped with positioning blocks and other mechanisms to position the carrier 53, ensuring that the carrier 53 is not misplaced on the conveyor belt 51; the upper conveyor belt 51 is the working layer, which transports the carrier 53 containing the parts to be used; the lower conveyor belt 51 is the return layer, which transports the empty carrier 53 whose parts have been removed. The conveying speed and frequency of the conveyor belt 51 are set in coordination with the belt parameters of the enclosing box loading mechanism 2.

[0032] The right side of the upper conveyor belt 51 is the discharge end, and the left side is the return end. After the robot arm 1 takes the parts out of the belt, they are placed into the empty carriers 53 on the upper layer in sequence. The carriers 53 are then transported to the right and conveyed to the gripping station of the robot arm 3 for the robot arm 3 to pick up in sequence. When a part in a certain carrier 53 on the upper layer is taken away, it is lowered to the lower layer through the lifting mechanism 52 at the end. The lower conveyor belt 51 conveys the empty carrier 53 to the lifting mechanism 52 at the robot arm 1 station. After the empty carrier 53 is raised to the upper layer, it waits for the robot arm 1 to load the next part, and so on.

[0033] The components of the collapsible boxes need to be transferred via a dedicated carrier 53. The double-layer structure, together with the lifting mechanisms 52 at both ends, forms a closed-loop carrier 53 system with upper-layer feeding and lower-layer return: the components to be used and the empty carrier 53 are physically isolated in different layers, avoiding the risk of mixing materials; at the same time, the upper layer can use the carrier 53 mechanism to sequentially transport the components of different collapsible boxes to the corresponding workstations, ensuring that the components gripped by the robot arm are completely matched with the currently packed collapsible boxes, reducing the probability of errors and improving production stability; in addition, the double-layer structure expands the space vertically, realizing the functions of temporary storage of components and return of carrier 53 without increasing the horizontal footprint, compressing the horizontal footprint and adapting to the compact production line layout. Example 2

[0034] like Figure 3-6 As shown in the first embodiment, another embodiment of the present invention is as follows: the lifting mechanism 52 includes: a lifting platform 521, a lifting seat 522, a tray 523 and a rope assembly 524, and the two lifting seats 522 move synchronously in opposite directions through the rope.

[0035] Specifically, the lifting seat 522 and the tray 523 form a lifting assembly. The side of the tray 523 closest to the conveyor belt 51 is open, and the carrier 53 enters and exits the tray 523 through the opening. The lifting seat 522 moves up and down inside the lifting platform 521, thereby driving the tray 523 to move up and down. After the tray 523 is aligned with one of the conveyor belts 51, the tray 523 is rotated, and the carrier 53 inside the tray 523 automatically slides down onto the conveyor belt 51.

[0036] The pull rope assembly 524 includes a pull rope and a pulley. The two ends of the pull rope are connected to two lifting seats 522 respectively. After one lifting seat 522 moves down, the other lifting seat 522 moves up through the pull rope assembly 524.

[0037] like Figure 4-6 As shown, the lifting mechanism 52 also includes: a trigger 525 provided on the lifting platform 521, a support spring 526 provided on the lifting seat 522, and a limiting step 527.

[0038] Specifically, there are two triggers 525. The right trigger 525 is located above the lower conveyor belt 51. After the right lifting seat 522 moves down, the right trigger 525 contacts the bottom of the right tray 523, pushing the right side of the tray 523 upward, making the tray 523 tilted from left to right. Then, the carrier 53 inside the tray 523 slides down onto the lower conveyor belt 51. The left trigger 525 is located above the upper conveyor belt 51. After the left lifting seat 522 moves up, the left trigger 525 contacts the top of the side wall of the left tray 523, pressing down on the right side of the tray 523, making the tray 523 tilted from left to right. Then, the carrier 53 inside the tray 523 slides down onto the upper conveyor belt 51. It should be noted that after the trigger 525 causes the tray 523 to be biased, the opening of the tray 523 is not lower than the surface of the conveyor belt 51.

[0039] Initially, the tray 523 is horizontal or inclined with its opening higher than the conveyor belt 51. The limiting step 527 is used to limit the initial position of the tray 523, and the tray 523 is maintained in its initial state under the action of the support spring 526.

[0040] like Figure 4-9 As shown, it also includes a self-balancing mechanism 7, which includes: a support 71, a slide groove 72 in the support 71; a main counterweight 73 slidably disposed in the slide groove 72; a mating groove 74 on the tray 523; a strike rod 75 movably inserted into the bottom end of the slide groove 72, and an energy storage spring 76 disposed on the strike rod 75; and a baffle 77 movably inserted into the upper end of the interior of the slide groove 72, and a return spring 78 disposed on the baffle 77.

[0041] Specifically, the support 71 is located at the discharge end of the conveyor belt 51. The support 71 includes two parts located on the front and rear sides of the tray 523 respectively. The main counterweight 73 moves up and down along the chute 72. The two ends of the energy storage spring 76 are connected to the impact rod 75 and the bottom of the chute 72 respectively. The baffle 77 adopts a pawl-like one-way check structure. The two ends of the return spring 78 are connected to the baffle 77 and the support 71 respectively. The return spring 78 is used to push the baffle 77 to the right and insert it into the chute 72.

[0042] Initially, the right pallet 523 is located on the upper layer, and the left pallet 523 is located on the lower layer. The main counterweight 73 is located above the right pallet 523 and is blocked by the baffle 77. The rightmost vehicle 53 on the upper conveyor belt 51 enters the upper right pallet 523, while the leftmost vehicle 53 on the lower conveyor belt 51 enters the lower left pallet 523. In order to ensure that the right lifting component can move down smoothly and drive the left lifting component to move up, the main counterweight 73 is set. After the main counterweight 73 is placed in the mating groove 74 of the right pallet 523, the mass difference between the left and right lifting components is increased, so that the right descent and left ascent can be carried out smoothly, thereby completing the transfer of the vehicle 53 between the upper and lower conveyor belts 51.

[0043] Before the right pallet 523 moves down to align with the lower conveyor belt, the main counterweight 73 separates from the right pallet 523 and rests on the impact bar 75. By designing the shape of the chute 72, for example, by setting the chute 72 to be inclined, the requirement that the main counterweight 73 first separates from the pallet 523 and then the pallet 523 moves down to contact the trigger 525 can be met. Pulling the impact bar 75 down compresses the energy storage spring 76 to store energy. Then, the impact bar 75 is released, and the energy storage spring 76 releases energy to drive the impact bar 75 to move up quickly, thereby pushing the main counterweight 73 up to above the baffle 77, completing the reset of the main counterweight 73.

[0044] It should be noted that, in order to reduce the number of structures and production costs, the self-balancing mechanism 7 is only set at the discharge end of the conveyor belt 51 in this solution; of course, the self-balancing mechanism 7 can also be set at the return end of the conveyor belt 51 as needed. Example 3

[0045] like Figure 4-9 As shown in the comparative embodiment 2, another embodiment of the present invention further includes a drive mechanism 8, which includes: a toothed segment 81 disposed on the side wall of the impact rod 75; a vibration transmission rod 82 disposed at the vibration point in the temporary conveyor line 5; a movable seat 83 slidably disposed on the vibration transmission rod 82; a positioning spring disposed on the movable seat 83; and a drive pawl 84 disposed on the movable seat 83.

[0046] Specifically, in the temporary conveyor line 5, the roller used to drive the conveyor belt 51 to rotate at high speed is subjected to high-frequency and continuous vibration at the bearing seats at both ends of the roller due to the rotation of the bearing and the impact of the carrier 53. The energy density is high and stable. Therefore, the vibration transmission rod 82 is preferably installed here. Of course, depending on the specific operating conditions, the vibration transmission rod 82 can also be installed in other places with dense vibration energy, such as near the motor and reducer.

[0047] The two ends of the positioning spring are connected to the vibration transmission rod 82 and the movable seat 83 respectively. The movable seat 83 preferably moves along the axial direction of the vibration transmission rod 82. Initially, the movable seat 83 is located at the right end of its movement range under the action of the positioning spring. The movable seat 83 maintains a fixed relative position with the vibration transmission rod 82, and the driving pawl 84 contacts and engages with the tooth segment 81.

[0048] The vibration of the temporary conveyor line 5 drives the vibration transmission rod 82 to move up and down reciprocally. Through the cooperation of the drive pawl 84 and the tooth segment 81, the impact rod 75 is continuously driven to move down, so that the energy storage spring 76 is compressed and stores energy. The movable seat 83 is moved to the left, so that the drive pawl 84 and the tooth segment 81 are separated, so that the energy storage spring 76 releases energy to push the impact rod 75 to move up.

[0049] like Figure 7-9 As shown, the drive mechanism 8 also includes: an adjustment plate 85 that is movably connected to the support 71; the adjustment plate 85 is provided with a backlash pawl 86.

[0050] Specifically, the adjusting plate 85 and the movable seat 83 move left and right synchronously, and the movable seat 83 can move up and down relative to the adjusting plate 85. With this setting, the adjusting plate 85 does not affect the up and down movement of the vibration transmission rod 82, and the position of the movable seat 83 on the vibration transmission rod 82 can be adjusted.

[0051] Initially, the check pawl 86 contacts the toothed segment 81, preventing the impact rod 75 from moving upward, further ensuring the smooth operation of the vibration transmission rod 82 driving the impact rod 75 downward. During the downward movement of the main counterweight 73 in the slide groove 72, it first contacts the top of the adjusting plate 85 and pushes the adjusting plate 85 to the left, causing the check pawl 86 to separate from the toothed segment 81, and the movable seat 83 to move to the left, driving the pawl 84 to separate from the toothed segment 81. After the restraint of the check pawl 86 and the driving pawl 84 is removed, the energy storage spring 76 releases energy to push the impact rod 75 upward. In this way, the check state of the impact rod 75 is automatically released during the descent of the main counterweight 73, so as to realize the automatic reset function of the main counterweight 73. Moreover, the vibration of the temporary conveyor line 5 is used to provide the power source for the reset of the main counterweight 73, without the need for additional power consumption, which is energy-saving and environmentally friendly.

[0052] like Figure 5-7 As shown, the tray 523 is inclined on the lifting seat 522. The drive mechanism 8 also includes a toggle member 87 on the tray 523. After the tray 523 rotates, the toggle member 87 drives the baffle 77 to move to the outside of the slide groove 72.

[0053] Specifically, the baffle 77 is L-shaped; the actuating element 87 is located on the top side wall of the right tray 523; initially, the right tray 523 is tilted with the left side higher than the right side, and the opening is not higher than the surface of the upper conveyor belt 51; the left tray 523 can also be tilted or horizontal; after the carrier 53 on the upper conveyor belt 51 enters the upper right tray 523, the gravity of the carrier 53 drives the tray 523 to rotate to a horizontal position; after the tray 523 rotates, the actuating element 87 briefly contacts the baffle 77, causing the baffle 77 to move to the left and separate from the main counterweight 73. Then, the main counterweight 73 moves down and falls into the mating groove 74 of the tray 523 to increase the gravitational potential energy and kinetic energy of the right lifting assembly moving down.

[0054] It should be noted that the shape and position of the actuating element 87 and the baffle 77 can be selected according to production requirements. Other structures that allow the actuating element 87 to move the baffle 77 away from the slide groove 72 without affecting the subsequent movement of the pallet 523 and the self-balancing component are also suitable for the manufacture of the actuating element 87 and the baffle 77.

[0055] like Figure 4-5 As shown, the self-counterweight mechanism 7 also includes a secondary counterweight 79 disposed on another tray 523, and the weight of the main counterweight 73 is greater than the weight of the secondary counterweight 79.

[0056] Specifically, the secondary counterweight 79 is preferably, but not limited to, fixed to the pallet 523, and the total weight of the right lifting assembly plus the main counterweight 73 is greater than the total weight of the left lifting assembly plus the secondary counterweight 79.

[0057] When the right pallet 523 moves to the bottom and the left pallet 523 moves to the top, the carriers 53 flow into the two conveyor belts 51 respectively, completing one round of carrier 53 transfer. At this time, both pallets 523 are empty. In order to ensure that the pallets 523 can be reset for the next round of carrier 53 transfer, a counterweight 79 is set on the left pallet 523 so that the total weight of the left lifting assembly plus the counterweight 79 is greater than the weight of the right lifting assembly. Then, the left pallet 523 moves down to reset and the right pallet 523 moves up to reset.

[0058] The self-balancing mechanism 7 and the drive mechanism 8 are detachably installed on the temporary conveyor line 5. While the various parts of this packing production line work together, each part can also be adjusted and maintained individually. The overall packing production line realizes a modular design, which is convenient for expanding and maintaining the original old production line and adapting to the high-speed packing production needs of different specifications of collapsible boxes.

[0059] Working principle: Taking a two-layer pallet box as an example, start the entire production line and place the entire pallet box on the conveyor belt of the pallet box feeding mechanism 2 in sequence. The storage mechanism 4 places the material on the conveyor belt of the material feeding mechanism 3 in sequence. The pallet box and the material are transported along the conveyor belt towards the packing machine 1.

[0060] During the transport process, robot arm one sequentially removes the lid and layered base of the pallet box and places them on the temporary conveyor line 5, while the base remains on the conveyor belt of the pallet box loading mechanism 2. Robot arm two picks up materials from the material loading mechanism 3 and places them into the pallet box. After the lower layer of the pallet box is full of materials, robot arm three picks up the layered base from the temporary conveyor line 5 and places it into the base. Robot arm two continues to pick up materials from the material loading mechanism 3 and place them into the pallet box. After the upper layer of the pallet box is full of materials, robot arm three picks up the lid and places it on top of the base. Then, the conveyor belt transports the pallet box to the strapping machine, which performs a crisscross packing of the pallet box, completing the packing process. In this way, the fully automated production of pallet box packing and strapping is achieved.

[0061] During the operation of the temporary conveyor line 5, the first robot arm places the parts into the empty carrier 53 on the upper layer in sequence. The carrier 53 is then transferred to the third robot arm to the right for the third robot arm to pick up in sequence. After the parts are taken away, the empty carrier 53 enters the upper right tray 523, and the leftmost carrier 53 on the lower conveyor belt 51 enters the lower left tray 523. The upper right tray 523 receives the carrier 53 and rotates to a horizontal position. After the tray 523 rotates, the actuating component 87 briefly contacts the baffle 77, causing the baffle 77 to move to the left and separate from the main counterweight 73. Then, the main counterweight 73 moves down and falls into the mating groove 74 of the tray 523.

[0062] Under the additional gravity of the main counterweight 73, the right-side lifting seat 522, tray 523, and main counterweight 73 move downwards, and drive the left-side lifting seat 522 and tray 523 upwards via the pull rope assembly 524; after the right-side tray 523 moves downwards, its bottom end contacts the right-side trigger 525, and the tray 523 becomes tilted with the left side lower than the right side, and the vehicle 53 inside the tray 523 slides down onto the lower conveyor belt 51; after the left-side lifting seat 522 moves upwards, its top end contacts the left-side trigger 525, and the tray 523 becomes tilted with the left side higher than the right side, and the vehicle 53 inside the tray 523 slides down onto the upper conveyor belt 51; in this way, the automatic flow of the empty vehicle 53 between the upper and lower conveyor belts 51 is completed.

[0063] The vibration generated during the operation of the temporary conveyor line 5 drives the vibration transmission rod 82 to move up and down reciprocally. Through the cooperation of the drive pawl 84 and the tooth segment 81, the impact rod 75 is continuously moved down, so that the energy storage spring 76 is compressed and stores energy.

[0064] During the descent of the right-side lifting assembly and the main counterweight 73, before the pallet 523 contacts the trigger 525, the main counterweight 73 first contacts the top of the adjusting plate 85 and then stops on the impact rod 75 to avoid interference with the deflection of the pallet 523. After the main counterweight 73 contacts the top of the adjusting plate 85, it pushes the adjusting plate 85 to the left, causing the check pawl 86 to separate from the tooth segment 81, and the movable seat 83 to move to the left, causing the drive pawl 84 to separate from the tooth segment 81. After losing the restraint of the check pawl 86 and the drive pawl 84, the energy storage spring 76 releases energy to push the impact rod 75 to move upward quickly, thereby pushing the main counterweight 73 to move upward above the baffle 77, completing the reset of the main counterweight 73.

[0065] After the right pallet 523 moves downwards and the left pallet 523 moves upwards, the carrier 53 flows into the two conveyor belts 51 respectively, completing one cycle of carrier 53 circulation. At this time, both pallets 523 are empty. Since the left pallet 523 is equipped with a secondary counterweight 79 and the right main counterweight 73 has been moved upwards and reset, the right pallet 523 has no main counterweight 73. Therefore, the left pallet 523 automatically moves downwards and resets, and drives the right pallet 523 upwards and resets via the pull rope assembly 524. This cycle repeats, enabling the main counterweight 73 to automatically engage and disengage from the pallet 523 to drive the carrier 53 to move up and down. It also recovers the vibration energy of the temporary conveyor line 5 as the power source for the movement of the main counterweight 73. The fully automated circulation of the carrier in the temporary conveyor line 5 is achieved without the need for an additional electric drive system, which is energy-saving and environmentally friendly.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed automated box-packing production line for packing palletized boxes, comprising a packing machine (1), wherein the inlet side of the packing machine (1) is provided with a palletized box feeding mechanism (2) and a material feeding mechanism (3), characterized in that: Also includes: The storage facility (4) is connected to the inlet of the material feeding facility (3) and is used to store and transfer materials to be packed. Temporary conveyor line (5) is used for storing and transferring accessories for pallet boxes; Several robots (6) are used to pick up and put away parts and materials; The entire pallet box to be packed moves on the pallet box feeding mechanism (2). The material taken out from the storage mechanism (4) moves along the material feeding mechanism (3). During the movement, the robot (6) takes out the accessories in the pallet box and places them on the temporary conveyor line (5). After loading the material into the base of the pallet box, the robot takes the accessories from the temporary conveyor line (5) and puts them back on the base. The pallet box containing the material enters the packing machine (1) for packing.

2. The high-speed automated packaging production line according to claim 1, characterized in that: The storage facility (4) adopts a two-layer single shuttle car (42) three-dimensional warehouse structure. The storage facility (4) includes a frame (41), which has two layers of storage locations and a track layer. The storage locations are used to store materials. The track layer is located between the upper and lower storage locations. The track layer is equipped with a shuttle car (42), which is equipped with a fork for storing and retrieving materials. The side wall of the frame (41) is equipped with a hoist for transferring materials across layers.

3. The high-speed automated packaging production line according to claim 2, characterized in that: The temporary conveyor line (5) includes upper and lower conveyor belts (51) and a lifting mechanism (52). Several carriers (53) for carrying accessories are placed on the conveyor belts (51). The lifting mechanism (52) is used to control the carriers (53) to move between the two conveyor belts (51). The robot (6) performs the work of picking up and placing accessories on the upper carriers (53).

4. The high-speed automated packaging production line according to claim 3, characterized in that: The lifting mechanism (52) includes: Lifting platforms (521) are respectively installed at both ends of the conveyor belt (51); A lifting seat (522) is slidably mounted on the lifting platform (521); By rotating the tray (523) located on top of the lifting seat (522), the carrier (53) flows between the two layers of the conveyor belt (51) through the tray (523); The pull rope assembly (524) allows the two lifting seats (522) to move synchronously in opposite directions via the pull rope.

5. A high-speed automated cartoning production line according to claim 4, characterized in that: The lifting mechanism (52) also includes: A trigger (525) is provided on the lifting platform (521). When the tray (523) carrying the vehicle (53) moves to contact the trigger (525), it deflects, causing the vehicle (53) to slide onto the conveyor belt (51). A support spring (526) and a limiting step (527) are provided on the lifting seat (522).

6. The high-speed automated packaging production line according to claim 5, characterized in that: It also includes a self-balancing mechanism (7), which comprises: A support (71) is provided on one side of the lifting platform (521), and a sliding groove (72) is provided in the support (71). The main counterweight (73) is slidably disposed in the slide groove (72); A mating groove (74) is provided on the tray (523) for receiving the main counterweight (73); When the lifting seat (522) moves down from the position of the upper conveyor belt (51), the main counterweight (73) falls into the mating groove (74) and drives the other lifting seat (522) to move up. Before the tray (523) moves down to contact the trigger (525), the main counterweight (73) separates from the tray (523). A slidable impact rod (75) is provided at the bottom end of the slide groove (72). The impact rod (75) is used to push the main counterweight (73) to move upward and reset. An energy storage spring (76) is provided on the impact rod (75). A baffle (77) is movably inserted into the slide (72). The baffle (77) is provided with a return spring (78). The baffle (77) extends to the outside of the support (71). The baffle (77) has a one-way structure. The baffle (77) blocks the main counterweight (73) above the tray (523).

7. A high-speed automated cartoning production line according to claim 6, characterized in that: It also includes a drive mechanism (8), which comprises: A toothed segment (81) is provided on the side wall of the impact rod (75); Vibration transmission rod (82) connected to the vibration point in the temporary conveyor line (5); A movable seat (83) is slidably mounted on the vibration transmission rod (82), and a positioning spring is provided on the movable seat (83); A drive pawl (84) is provided on the movable seat (83). During the vibration of the vibration transmission rod (82), the drive pawl (84) and the gear cooperate to drive the impact rod (75) to move downward.

8. A high-speed automated cartoning production line according to claim 7, characterized in that: The drive mechanism (8) further includes: An adjusting plate (85) is movably inserted into the support (71). The top end of the adjusting plate (85) is inserted into the slide groove (72) and located above the impact rod (75). The top end of the adjusting plate (85) is provided with a ramp, and the bottom end of the adjusting plate (85) is inserted into the movable seat (83). A pawl (86) is provided on the adjusting plate (85). The pawl (86) engages with the tooth segment (81) to prevent the impact rod (75) from moving upward.

9. A high-speed automated cartoning production line according to claim 8, characterized in that: The tray (523) is inclined on the lifting seat (522). The driving mechanism (8) also includes a toggle (87) on the tray (523). After the tray (523) rotates, the toggle (87) drives the baffle (77) to move to the outside of the slide (72).

10. A high-speed automated cartoning production line according to claim 9, characterized in that: The self-balancing mechanism (7) further includes a secondary counterweight (79) disposed on another pallet (523), wherein the weight of the primary counterweight (73) is greater than the weight of the secondary counterweight (79).

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