Inner support assembling equipment and assembling method thereof

Abstract

The invention relates to the technical field of automatic packaging box assembling, in particular to inner support assembling equipment and an assembling method.The inner support assembling equipment comprises a feeding mechanism, a support separating mechanism, a support taking mechanism and a delivery mechanism which are sequentially arranged along the inner support processing flow, and the feeding mechanism comprises a first conveying belt used for directionally conveying vertically-stacked inner support piles to the support separating mechanism; the support separating mechanism comprises a first upper-layer blocking unit and a first lower-layer separating unit, the first upper-layer blocking unit is used for blocking the inner supports above the bottommost inner supports, the first lower-layer separating unit is used for bearing or releasing the bottommost inner supports of the inner support stacks, and the support taking mechanism is used for grabbing the single inner supports separated by the support separating mechanism; and the delivery mechanism is used for receiving and positioning the packaging box and placing the inner supports transferred by the support taking mechanism into the packaging box, and the problem that multiple inner supports are easily sucked at a time in a traditional simple mechanical suction mode is solved.

Description

Technical Field

[0001] This invention relates to the field of automatic packaging box assembly technology, and in particular to an inner tray assembly device and its assembly method. Background Technology

[0002] In the assembly and production of traditional mobile phone packaging boxes, the assembly of inner trays and warranty boxes is a crucial step. During vertical stacking, storage, and transport, the inner trays interlock tightly. When using simple mechanical adsorption for single-sheet separation, the system struggles to reliably identify and overcome the interlocking forces between the inner tray layers. This easily leads to the simultaneous picking up of multiple inner trays, causing not only confusion and jamming in subsequent robotic gripping or transport processes, but also the simultaneous misplacement of multiple inner trays into the packaging box. This results in improper closure, serious packaging quality defects, and even production line shutdowns and significant material waste, severely restricting the automation level, production cycle time, and product qualification rate of the packaging process. Summary of the Invention

[0003] The purpose of this invention is to provide an inner tray assembly device and its assembly method to solve the problem of multiple pieces being accidentally sucked in by existing inner tray separation devices because they cannot reliably overcome the fastening force between stacked inner trays.

[0004] The technical solution of the present invention is: an inner tube assembly device, comprising: The inner tray processing flow includes a feeding mechanism, a tray separating mechanism, a tray picking mechanism, and a delivery mechanism. The feeding mechanism includes a first conveyor belt for directionally conveying the vertically stacked inner trays to the tray separating mechanism. The tray-separating mechanism includes a first upper blocking unit and a first lower separating unit. The first upper blocking unit is used to block the inner tray above the bottom inner tray, and the first lower separating unit is used to support or release the bottom inner tray of the inner tray stack. The tray-retrieving mechanism is used to grab a single inner tray separated by the tray-separating mechanism. The delivery mechanism is used to receive and position the packaging box, and place the inner tray transferred by the tray-retrieving mechanism into the packaging box.

[0005] Preferably, the feeding mechanism further includes a first guide plate and a second guide plate extending along the conveying direction of the first conveyor belt and disposed on both sides of the first conveyor belt, and an adjustable-width conveying channel is formed between the first guide plate and the second guide plate.

[0006] Preferably, the tray-distributing mechanism further includes a support platform and an adjustment component. The support platform has a vertically penetrating feeding hole, and the adjustment component includes an adjustment baffle that can move along a first direction. The adjustment baffle, together with the first guide plate, the second guide plate, and the output end of the first conveyor belt, forms a guide channel that communicates with the feeding hole.

[0007] Preferably, the first lower separation unit includes a first lower roller that can extend horizontally into or out of the guide channel, and the upper blocking unit includes a first upper roller that can extend horizontally into or out of the gap between adjacent inner trays of the inner tray stack. The rotation axis of the first upper roller and the rotation axis of the first lower roller are vertically separated by one inner tray body length.

[0008] Preferably, the support platform is provided with a first guide rail, and the first guide rail is movably connected to a first slider that slides along a second direction. The first upper blocking unit and the second blocking unit are disposed on the first slider, and the second direction is perpendicular to the first direction.

[0009] Preferably, the separating mechanism includes a second upper blocking unit and a second lower separating unit, the first upper blocking unit and the second upper blocking unit are symmetrically arranged on both sides of the adjusting component along the second direction, and the first lower separating unit and the second lower separating unit are symmetrically arranged on both sides of the adjusting component along the second direction.

[0010] Preferably, the tray distribution mechanism further includes a first receiving component and a second receiving component arranged symmetrically. The first receiving component and the second receiving component are located between the first upper blocking unit and the first conveyor belt. The first receiving component includes a first receiving plate, and the second receiving component includes a second receiving plate. The first receiving plate and the second receiving plate can move towards each other to extend into the guide channel to receive the inner tray stack, and can move away from each other to exit the guide channel.

[0011] Preferably, the retrieval mechanism includes a transfer component and a retrieval rotation component; The transfer component is used to drive the pick-up and rotation component to move in the vertical direction; The tray-retrieving and rotating assembly includes a rotary motor and an adsorption component located at the output end of the rotary motor, used to adsorb a single inner tray and adjust the posture of the inner tray.

[0012] Preferably, the delivery mechanism includes: A second conveyor belt extending in the second direction is used to transport packaging boxes; A positioning component for laterally positioning the packaging box in the first direction; A blocking component is used to block the packaging box at a preset position.

[0013] This application also provides an assembly method. Loading step: Place the inner trays on the loading mechanism, and convey and guide them to the guide channel; Separation steps: The first lower roller supports the stack of inner trays and the first upper roller is inserted into the gap between the bottom inner tray and the adjacent inner tray above it to lock the upper inner tray; the first lower roller is retracted so that the bottom inner tray is in a ready-to-grab state; Installation steps: The picking mechanism absorbs and removes the bottom inner tray, transferring it to the pre-positioned packaging box on the delivery mechanism; Reset cycle steps: The first lower roller resets to support, the first upper roller unlocks to allow the inner tray stack to descend one inner tray position and then relocks, ready for the next separation; at the same time, the delivery mechanism sends the loaded packaging box away and sends a new packaging box into it.

[0014] Compared with the prior art, the advantages of the present invention are: (1) The first upper layer blocking unit and the first lower layer separating unit work closely together. The first upper layer blocking unit effectively blocks the inner tray above the bottom inner tray to prevent it from interfering with the separation process. The first lower layer separating unit accurately supports or releases the bottom inner tray of the inner tray stack, overcoming the clamping force between the inner tray layers. The tray removal mechanism can stably and reliably separate a single inner tray. The tray separation mechanism and the tray removal mechanism work together to achieve the separation of the inner trays one by one by the upper blocking and lower separating method, solving the problem that the traditional simple mechanical adsorption method can easily pick up multiple inner trays at once.

[0015] (2) It avoids the problem of multiple inner trays being mistakenly placed into the packaging box due to inaccurate separation of inner trays, which in turn leads to problems such as packaging not being able to close properly and serious quality defects. It effectively reduces production line downtime and material loss, significantly improves the automation level of the packaging process, production cycle and product qualification rate, and provides a strong guarantee for the efficient and high-quality production of mobile phone packaging boxes. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of an inner tray assembly device according to the present invention; Figure 2 This is a schematic diagram of the feeding mechanism described in this invention; Figure 3 This is a schematic diagram of the structure of the distribution mechanism described in this invention; Figure 4 This is a schematic diagram of the structure of the bearing platform described in this invention; Figure 5 This is a schematic diagram of the structure of the first and second sub-support components described in this invention; Figure 6 This is a schematic diagram of the structure of the first receiving assembly and the second receiving assembly according to the present invention; Figure 7 This is a schematic diagram of the structure of the retrieval mechanism described in this invention; Figure 8 This is a schematic diagram of the delivery mechanism described in this invention.

[0017] Explanation of reference numerals in the attached figures: 1. Feeding mechanism; 11. First conveyor belt; 111. Fixing part; 112. Conveying part; 12. First guide assembly; 121. First guide plate; 122. Second guide plate; 13. Conveying channel; 2. Distributing mechanism; 21. Bearing platform; 211. Feeding hole; 212. Guide channel; 22. Adjusting assembly; 221. Adjusting cylinder; 222. Adjusting baffle; 23. First distributing assembly; 231. First guide rail; 232. First slider; 233. First Upper blocking unit; 2331, first upper limit cylinder; 2332, first upper mounting bracket; 2333, first upper roller; 234, first lower separating unit; 2341, first lower limit cylinder; 2342, first lower mounting bracket; 2343, first lower roller; 235, first positioning plate; 24, second separating assembly; 241, second guide rail; 242, second slider; 243, second upper blocking unit; 2431, second upper limit cylinder; 2432, second... Upper mounting frame; 2433, Second upper roller; 244, Second lower separation unit; 2441, Second lower limit cylinder; 2442, Second lower mounting frame; 2443, Second lower roller; 245, Second positioning plate; 25, First receiving assembly; 251, First receiving cylinder; 252, First receiving plate; 26, Second receiving assembly; 261, Second receiving cylinder; 262, Second receiving plate; 3, Picking and holding mechanism; 31, Transfer assembly; 311, Transfer guide rail; 31 2. Transfer bracket; 32. Picking and rotating assembly; 321. Rotary motor; 322. Adsorption component; 323. Vacuum generator; 324. Negative pressure detection sensor; 4. Feeding mechanism; 41. Second conveyor belt; 42. First limiting plate; 43. Second limiting plate; 44. Positioning assembly; 441. Positioning cylinder; 442. Positioning plate; 45. Blocking assembly; 451. Blocking cylinder; 452. Blocking plate; 100. Inner tray stack; 110. Inner tray; 200. Packaging box. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] like Figure 1 As shown, an inner tray assembly device includes a feeding mechanism 1, a tray separating mechanism 2, a tray picking mechanism 3, and a delivery mechanism 4. The feeding mechanism 1 provides a continuous and stable input of inner tray stacks 100; the tray separating mechanism 2 receives the inner tray stacks 100 from the feeding mechanism 1 and separates them into individual inner trays 110; the tray picking mechanism 3 picks up the separated individual inner trays 110, adjusts their posture, and transfers them; finally, the delivery mechanism 4 receives the inner trays 110 transferred by the tray picking mechanism 3 and precisely places them into packaging boxes 200 running along the conveyor line, thus completing a fully automated process from stacking to orderly delivery of the inner trays 110.

[0022] like Figure 2 As shown, the feeding mechanism 1 includes a first conveyor belt 11 and a first guide assembly 12. The first conveyor belt 11 includes a fixed part 111 and a conveying part 112. The fixed part 111 forms the stable basic frame and power core of the first conveyor belt 11, while the conveying part 112 is the direct carrier for transporting the inner tray 110. Preferably, the conveying part 112 is an annular conveyor belt that circulates around the fixed part 111. Under the power and guidance provided by the fixed part 111, the conveying part 112 carries the inner tray 110 and completes the directional movement from the starting point to the end point along the first direction.

[0023] The first guide assembly 12 includes a first guide plate 121 and a second guide plate 122. Both the first guide plate 121 and the second guide plate 122 extend along a first direction and are symmetrically arranged on both sides of the conveying section 112, forming an adjustable conveying channel 13. To accommodate inner trays 110 of different sizes, the first guide assembly 12 has an adjustable capability. In this embodiment, the first guide plate 121 is fixed to the fixing part 111, and the second guide plate 122 moves in a direction closer to or further away from the first guide plate 121 to adjust the width of the conveying channel 13. In other embodiments, the first guide plate 121 and the second guide plate 122 move in opposite directions, ensuring that the inner tray 110 is always centered on the conveying path. This not only improves the stability and centering of the guide but also reduces the requirements for positioning accuracy at subsequent workstations. Preferably, both the first guide plate 121 and the second guide plate 122 are driven by cylinders.

[0024] The first guide plate 121 and the second guide plate 122 both extend outward in a first direction at the end of the first conveyor belt 11 by at least one inner tray 110. This ensures a smooth transition for the inner tray 110, preventing it from shifting, tipping, or getting stuck due to loss of lateral restraint the moment it leaves the driving area of ​​the first conveyor belt 11. It also guides the inner tray 110 accurately into the next workstation. Furthermore, the extended guide plates form a temporary physical barrier, maintaining the posture and orientation of the inner tray 110 even if it continues to move forward due to inertia or subsequent pushing force, significantly improving the reliability and accuracy of process connections.

[0025] The inner trays 110 are stacked vertically along their axial direction to form regularly arranged columnar inner tray stacks 100. On the first conveyor belt 11, each inner tray stack 100 is transported continuously or intermittently to the tray distribution mechanism 2 in the form of discrete units, with the axis of the inner tray stack 100 perpendicular to the first direction.

[0026] like Figures 3 to 5 As shown, the tray-separating mechanism 2 is used to separate the bottom of the single inner tray stack 100 into a single inner tray 110. The tray-separating mechanism 2 includes a support platform 21 and an adjustment assembly 22. The support platform 21 is provided with a feeding hole 211 that is guided in the vertical direction for conveying the inner tray 110.

[0027] The adjustment assembly 22 includes an adjustment cylinder 221 and an adjustment baffle 222. The cylinder body of the adjustment cylinder 221 is fixed on the support platform 21. The piston rod of the adjustment cylinder 221 extends and retracts in a first direction. The adjustment baffle 222 is fixed at the end of the piston rod of the adjustment cylinder 221 and extends vertically. The adjustment baffle 222 is located between the first guide plate 121 and the second guide plate 122. The adjustment baffle 222, the first guide plate 121, the second guide plate 122, and the output end of the first conveyor belt 11 together define a guide channel 212 for the inner support 110 to pass through. The guide channel 212 communicates vertically with the feeding hole 211. The size of the opening of the guide channel 212 can be adjusted to ensure that inner supports 110 of different sizes can accurately fall to the center of the feeding hole 211, eliminating positioning deviations caused by inertia. The end of the guide channel 212 is the entrance of the feeding hole 211, so that the inner tray 110 can fall directly and vertically into the feeding mechanism 4 without secondary transfer after leaving the first conveyor belt 11, which greatly improves the smoothness and efficiency of the process connection.

[0028] The top of the support platform 21 is provided with a first partitioning assembly 23 for partitioning the inner trays 110 one by one. The first partitioning assembly 23 includes a first guide rail 231 and a first slider 232. The first guide rail 231 extends along a second direction, and the first slider 232 slides along the second direction and is connected to the first guide rail 231. The first slider 232 is provided with a first upper blocking unit 233 and a first lower separating unit 234.

[0029] The first upper blocking unit 233 includes a first upper limit cylinder 2331 and a first upper mounting bracket 2332, the first upper mounting bracket 2332 being fixed to the end of the piston rod of the first upper limit cylinder 2331. The first upper mounting bracket 2332 is rotatably connected to a first upper roller 2333, the central axis of rotation of the first upper roller 2333 extending horizontally along a first direction. The diameter of the first upper roller 2333 is less than or equal to the distance between the outer edges of two adjacent inner supports 110, so that the first upper limit cylinder 2331 can drive the first upper roller 2333 to extend into the gap between the outer edges of two adjacent inner supports 110. This separates the bottom inner support 110 from the upper stack, providing conditions for individual material handling or single-piece unloading.

[0030] The first lower separation unit 234 includes a first lower limit cylinder 2341 and a first lower mounting bracket 2342. The first lower mounting bracket 2342 is fixed to the end of the piston rod of the first lower limit cylinder 2341. The first lower mounting bracket 2342 is rotatably connected to a first lower roller 2343, and the rotation axis of the first lower roller 2343 is parallel to the rotation axis of the first upper roller 2333. The first upper limit cylinder 2331 is located above the first lower limit cylinder 2341, and the piston rod of the first upper limit cylinder 2331 extends and retracts in the same direction as the piston rod of the first lower limit cylinder 2341.

[0031] When the vertically stacked inner trays 100 are conveyed to the guide channel 212 of the support platform 21, the first tray separating assembly 23 is activated. First, the first slider 232 slides along the second direction, so that the first upper blocking unit 233 and the first lower separating unit 234 are precisely aligned with the allowable gap between the outer edges of adjacent inner trays 110 in the stacking of inner trays 110. The first lower limit cylinder 2341 drives the first lower roller 2343 to extend horizontally, positioning it on the descending path of the bottom inner tray 110, supporting the weight of the entire stack of inner trays 110. Subsequently, the first upper limit cylinder 2331 drives its piston rod to extend, causing the first upper mounting bracket 2332 and the first upper roller 2333 to move horizontally, so that the first upper roller 2333 precisely engages in the gap between the penultimate inner tray 110 and the second inner tray 110, thereby blocking the penultimate inner tray 110 and all inner trays 110 above it. This completes the precise positioning and locking before separation.

[0032] The separation process begins with the initial retraction of the first lower limit cylinder 2341, which drives the first lower roller 2343 to horizontally withdraw from below the bottom inner tray 110. At this point, the delivery mechanism 4 activates, picking up and removing the bottom inner tray 110, which has lost its support, completing the single-piece separation and removal. The first lower limit cylinder 2341 then extends again, resetting the first lower roller 2343 to its ready position. Subsequently, the first upper limit cylinder 2331 retracts, and the first upper roller 2333 exits the gap between the inner trays 110. The inner tray stack 100, previously blocked, descends by the force of gravity, reaching the height of one inner tray 110 position. Finally, the first upper limit cylinder 2331 extends again, causing the first upper roller 2333 to engage in a new gap between the inner trays 110, specifically between the original third-to-last and second-to-last inner trays 110, thus re-locking the inner tray stack 100. This completes one separation cycle and prepares for the next separation.

[0033] In this embodiment, to ensure the stability of the inner tray 110 separation, the bearing platform 21 is provided with a second tray assembly 24. The first tray assembly 23 and the second tray assembly 24 are respectively disposed on both sides of the adjusting assembly 22 along the second direction. That is, the first tray assembly 23 and the second tray assembly 24 are located on both sides of the top of the feeding hole 211.

[0034] The second separating assembly 24 includes a second guide rail 241 and a second slider 242. The second guide rail 241 extends along a second direction, and the second slider 242 slides along the second direction and is connected to the second guide rail 241. The second slider 242 is provided with a second upper blocking unit 243 and a second lower separating unit 244. The second guide rail 241 and the first guide rail 231 are coaxially distributed on both sides of the adjusting assembly 22, and the first slider 232 and the second slider 242 move in opposite or opposing directions.

[0035] The second upper blocking unit 243 includes a second upper limit cylinder 2431 and a second upper mounting bracket 2432. The second upper mounting bracket 2432 is fixed to the end of the piston rod of the second upper limit cylinder 2431, and the second upper mounting bracket 2432 is at the same height as the first upper mounting bracket 2332. The second upper mounting bracket 2432 is rotatably connected to a second upper roller 2433. The rotation axis of the second upper roller 2433 extends horizontally along a second direction and is located on the same horizontal plane as the rotation axis of the first upper roller 2333. The diameter of the second upper roller 2433 is less than or equal to the distance between the outer edges of two adjacent inner supports 110, so that the second upper limit cylinder 2431 can drive the second upper roller 2433 to extend into the gap between the outer edges of two adjacent inner supports 110.

[0036] The second lower separation unit 244 includes a second lower limit cylinder 2441 and a second lower mounting bracket 2442. The second lower mounting bracket 2442 is fixed to the end of the piston rod of the second lower limit cylinder 2441, and the second lower mounting bracket 2442 is at the same height as the first lower mounting bracket 2342. The second lower mounting bracket 2442 is rotatably connected to a second lower roller 2443, and the rotation axis of the second lower roller 2443 and the rotation axis of the first lower roller 2343 are on the same horizontal plane. The second upper limit cylinder 2431 is located above the second lower limit cylinder 2441, and the piston rod of the second upper limit cylinder 2431 extends and retracts in the same direction as the piston rod of the second lower limit cylinder 2441.

[0037] A first positioning plate 235 is fixed to the side of the first slider 232 facing the second slider 242, and a second positioning plate 245 is fixed to the side of the second slider 242 facing the first slider 232. Both the first positioning plate 235 and the second positioning plate 245 extend in the vertical direction to limit and position the inner stack 100 in the second direction.

[0038] like Figure 6 As shown, the tray distribution mechanism 2 also includes a first receiving assembly 25 for supporting the inner tray stack 100. The first receiving assembly 25 includes a first receiving cylinder 251 and a first receiving plate 252. In this embodiment, the cylinder body of the first receiving cylinder 251 is fixed on the first positioning plate 235, and the first receiving plate 252 is fixed to the end of the piston rod of the first receiving cylinder 251. The first receiving plate 252 is used to support the inner tray stack 100 conveyed and output from the first conveyor belt 11.

[0039] The separating mechanism 2 also includes a second receiving assembly 26, which includes a second receiving cylinder 261 and a second receiving plate 262. The cylinder body of the second receiving cylinder 261 is fixed to the second positioning plate 245, and the second receiving plate 262 is fixed to the end of the piston rod of the second receiving cylinder 261. The first receiving plate 252 and the second receiving plate 262 are located on a horizontal plane and move in opposite directions to extend into the guide channel 212. The first receiving assembly 252 and the second receiving assembly 26 provide symmetrical support, preventing tilting or stress concentration of the inner stack 100 that may be caused by unilateral support, connecting the conveying process and the precision separation process, and accurately matching the production cycle.

[0040] Preferably, the tray-distributing mechanism 2 further includes a first detection sensor, a second detection sensor, and a third detection sensor. The first detection sensor is located at the output end of the first conveyor belt 11 to detect whether the inner tray stack 100 has been delivered to the guide channel 212. The second detection sensor is located on the first receiving assembly 25 to detect whether the inner tray stack 100 has been stably placed on the first receiving plate 252. The third detection sensor is located on the first tray-distributing assembly 23 to detect whether the first upper roller 2333 is accurately embedded in the specified gap and whether the first lower roller 2343 has extended into the supporting position.

[0041] Both the picking mechanism 3 and the delivery mechanism 4 are located at the bottom of the dispensing mechanism 2. The picking mechanism 3 is used to install a single inner tray 110 at the bottom of the dispensing mechanism 2 into the packaging box 200 of the delivery mechanism 4.

[0042] like Figure 7 As shown, the pick-up mechanism 3 includes a transfer component 31 and a pick-up rotation component 32. It receives and picks up the individual bottom inner trays 110 that are separated one by one by the splitting mechanism 2, extracts them from the carrying platform 21, and places them into the packaging box 200 located on the delivery line of the delivery mechanism 4, thereby completing the automatic transfer process of the inner trays 110 from separation to positioning and delivery.

[0043] The transfer assembly 31 includes a transfer guide rail 311 and a transfer bracket 312. The transfer guide rail 311 extends vertically, and the transfer bracket 312 is slidably connected to the transfer guide rail 311. The pick-and-place rotating assembly 32 is fixedly mounted on the transfer bracket 312. Preferably, the transfer bracket 312 is driven by a motor screw to move the pick-and-place rotating assembly 32 vertically between the distributing mechanism 2 and the delivery mechanism 4.

[0044] The rotating assembly 32 includes a rotary motor 321, an adsorption element 322, a vacuum generator 323, and a negative pressure detection sensor 324. The housing of the rotary motor 321 is fixed to the transfer bracket 312. The output shaft of the rotary motor 321 extends along a first direction. The adsorption element 322 is fixed to the end of the output shaft of the rotary motor 321 and is located at the bottom of the feeding hole 211 of the carrying platform 21 and at the top of the feeding mechanism 4. The vacuum generator 323 and the negative pressure detection sensor 324 are integrated and installed on the transfer bracket 312 and are connected to the internal cavity of the adsorption element 322 through a vacuum air passage pipe, together forming a complete vacuum gripping and monitoring unit. The transfer assembly 31 drives the transfer bracket 312 to rise vertically, causing the adsorption element 322 to move into the feeding hole 211. When the adsorption element 322 contacts the separated bottom inner tray 110, the vacuum generator 323 instantly activates, generating negative pressure within the adsorption element 322 to adsorb the inner tray 110. When the preset successful retrieval threshold is reached, the negative pressure detection sensor 324 sends a "successful adsorption" signal to the control system. Subsequently, the transfer assembly 31 drives the transfer bracket 312 to descend, and the tray-retrieving rotating assembly 32, which holds the inner tray 110, descends accordingly, removing the bottom inner tray 110 from the inner tray stack 100. The rotary motor 321 rotates 180° to adjust the inner tray 110 to maintain a downward orientation, and the transfer assembly 31 drives the tray-retrieving rotating assembly 32 to continue descending, installing the inner tray 110 into the packaging box 200.

[0045] The delivery mechanism 4 includes a second conveyor belt 41, a first limiting plate 42, and a second limiting plate 43. The second conveyor belt 41 extends horizontally along a second direction and is used to continuously transport the packaging box 200 along the second direction. The first limiting plate 42 and the second limiting plate 43 are respectively disposed on both sides of the second conveyor belt 41 along the second direction and are used to guide the packaging box 200 to move along the second direction.

[0046] The feeding mechanism 4 also includes a positioning component 44 and a blocking component 45. The blocking component 45 includes a blocking cylinder 451 and a blocking plate 452. The housing of the blocking cylinder 451 is fixed on the first limiting plate 42 or the second limiting plate 43. The blocking cylinder 451 pushes the blocking plate 452 out along the first direction to restrict the packaging box 200 to be directly below the feeding hole 211.

[0047] The positioning assembly 44 includes a positioning cylinder 441 and a positioning plate 442. The housing of the positioning cylinder 441 is fixed on the first limiting plate 42 or the second limiting plate 43, and the positioning plate 442 is fixed on the end of the piston rod of the positioning cylinder 441 for positioning the packaging box 200 in the first direction.

[0048] An assembly method, the specific method is as follows; Feeding steps: First, the vertically stacked inner trays 100 are placed at the starting point of the first conveyor belt 11, and the conveyor belt transports the inner trays 100 along the first direction. The first guide plate 121 and the second guide plate 122 guide and constrain the inner trays 100, keeping them centered during transport. When the inner trays 100 reach the end of the conveyor belt, they enter the guide channel 212. Connection steps: The first receiving plate 252 and the second receiving plate 262 extend relative to each other and enter the guide channel 212. The inner stack 100 smoothly transitions to the receiving plate. The first receiving plate 252 and the second receiving plate 262 together support the inner stack 100 and keep it stationary, waiting for the separating mechanism 2 to complete the separation of a set of inner stacks 100.

[0049] Separation steps: The first lower roller 2343 and the second lower roller 2443 extend horizontally, the first receiving plate 252 and the second receiving plate 262 retract in opposite directions, and the inner support stack 100, which is jointly supported by the first receiving plate 252 and the second receiving plate 262, descends to be supported by the first lower roller 2343 and the second lower roller 2443. The first upper roller 2333 and the second upper roller 2433 extend horizontally and are embedded in the gap between the penultimate inner support 110 and the second inner support 110, locking the penultimate inner support 110 and the inner support 110 above it. The first lower roller 2343 and the second lower roller 2443 retract horizontally, and the bottom inner support 110 loses its support and is in a ready-to-grab state.

[0050] Installation steps: The adsorption component 322 of the pick-up mechanism 3 rises, contacts and adsorbs the lower surface of the bottom inner tray 110, the adsorption component 322 adsorbs the inner tray 110 and descends, the adsorption component 322 rotates 180° to adjust the posture of the inner tray 110. The second conveyor belt 41 transports the packaging box 200 to the bottom of the suction unit 322, where the baffle plate 452 and the positioning plate 442 position the packaging box 200. The suction unit 322 descends and installs the inner tray 110 into the accurately positioned packaging box 200, after which the suction unit 322 rises back to the standby position. Reset and loop steps: The first lower roller 2343 and the second lower roller 2443 extend and return to the supporting position; the first upper roller 2333 and the second upper roller 2433 retract, and the inner support stack 100 descends by one inner support 110 body position under the action of gravity, and is supported by the first lower roller 2343 and the second lower roller 2443; the first upper roller 2333 and the second upper roller 2433 extend again, fit into the new inner support 110 gap, and re-lock the inner support stack 100; The baffle plate 452 and the positioning plate 442 retract, sending away the packaged box 200 with the contents already packed, and sending in the next empty packaged box 200.

[0051] The above embodiments are merely illustrative of the technical concept and features of the present invention, intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be construed as limiting the scope of protection of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention.

Claims

1. An inner tray assembly device, characterized in that, include: Along the inner tray (110) processing flow, there are sequentially provided a feeding mechanism (1), a tray separating mechanism (2), a tray picking mechanism (3) and a delivery mechanism (4). The feeding mechanism (1) includes a first conveyor belt (11) for directionally conveying the vertically stacked inner tray stack (100) to the tray separating mechanism (2). The tray-separating mechanism (2) includes a first upper blocking unit (233) and a first lower separating unit (234). The first upper blocking unit (233) is used to block the inner tray (110) above the bottom inner tray (110). The first lower separating unit (234) is used to support or release the bottom inner tray (110) of the inner tray stack (100). The tray-retrieving mechanism (3) is used to grab a single inner tray (110) separated by the tray-separating mechanism (2). The delivery mechanism (4) is used to receive and position the packaging box (200) and place the inner tray (110) transferred by the tray-retrieving mechanism (3) into the packaging box (200).

2. The inner tray assembly equipment according to claim 1, characterized in that: The feeding mechanism (1) further includes a first guide plate (121) and a second guide plate (122) extending along the conveying direction of the first conveyor belt (11) and disposed on both sides of the first conveyor belt (11), and an adjustable width conveying channel (13) is formed between the first guide plate (121) and the second guide plate (122).

3. The inner tray assembly equipment according to claim 2, characterized in that: The feeding mechanism (2) further includes a support platform (21) and an adjustment component (22). The support platform (21) is provided with a vertically penetrating feeding hole (211). The adjustment component (22) includes an adjustment baffle (222) that can move along a first direction. The adjustment baffle (222) together with the first guide plate (121), the second guide plate (122) and the output end of the first conveyor belt (11) form a guide channel (212) that communicates with the feeding hole (211).

4. The inner tray assembly equipment according to claim 3, characterized in that: The first lower separation unit (234) includes a first lower roller (2343) that can extend horizontally into or out of the guide channel (212), and the upper blocking unit includes a first upper roller (2333) that can extend horizontally into or out of the gap between adjacent inner trays (110) of the inner tray stack (100). The rotation axis of the first upper roller (2333) and the rotation axis of the first lower roller (2343) are vertically separated by the body position of one inner tray (110).

5. The inner tray assembly equipment according to claim 3, characterized in that: The carrying platform (21) is provided with a first guide rail (231), and the first guide rail (231) is movably connected to a first slider (232) that slides along a second direction. The first upper blocking unit (233) and the second blocking unit are provided on the first slider (232), and the second direction is perpendicular to the first direction.

6. The inner tray assembly equipment according to claim 5, characterized in that: The separating mechanism (2) includes a second upper blocking unit (243) and a second lower separating unit (244). The first upper blocking unit (233) and the second upper blocking unit (243) are symmetrically arranged on both sides of the adjusting component (22) along the second direction. The first lower separating unit (234) and the second lower separating unit (244) are symmetrically arranged on both sides of the adjusting component (22) along the second direction.

7. The inner tray assembly equipment according to claim 4, characterized in that: The tray distribution mechanism (2) further includes a first receiving component (25) and a second receiving component (26) arranged symmetrically. The first receiving component (25) and the second receiving component (26) are located between the first upper blocking unit (233) and the first conveyor belt (11). The first receiving component (25) includes a first receiving plate (252), and the second receiving component (26) includes a second receiving plate (262). The first receiving plate (252) and the second receiving plate (262) can move towards each other to extend into the guide channel (212) to receive the inner tray stack (100), and can move away from each other to exit the guide channel (212).

8. The inner tray assembly equipment according to claim 1, characterized in that: The picking mechanism (3) includes a transfer component (31) and a picking rotation component (32). The transfer component (31) is used to drive the pick-and-place rotating component (32) to move in the vertical direction; The pick-up and rotation assembly (32) includes a rotary motor (321) and an adsorption component (322) located at the output end of the rotary motor (321), which is used to adsorb a single inner tray (110) and adjust the posture of the inner tray (110).

9. The inner tray assembly equipment according to claim 3, characterized in that: The delivery mechanism (4) includes: A second conveyor belt (41) extending in the second direction is used to transport packaging boxes (200). Positioning component (44) for laterally positioning the packaging box (200) in the first direction; A blocking component (45) is used to block the packaging box (200) at a preset position.

10. An assembly method, using the inner tray assembly device as described in any one of claims 1-9, Loading step: Place the inner tray stack (100) on the loading mechanism (1), and transport and guide it to the guide channel (212). Separation steps: The inner tray stack (100) is supported by the first lower roller (2343) in the first lower separation unit (234), and the upper roller (2333) in the first upper blocking unit (233) is inserted into the gap between the bottom inner tray (110) and the adjacent inner tray (110) above it to lock the upper inner tray (110); the first lower roller (2343) is withdrawn so that the bottom inner tray (110) is in a ready-to-grab state; Installation steps: The picking mechanism (3) adsorbs and removes the bottom inner tray (110) and transfers it to the packaging box (200) that has been positioned on the delivery mechanism (4); Reset cycle steps: The first lower roller (2343) resets the support, the first upper roller (2333) unlocks so that the inner tray stack (100) drops one inner tray (110) position and then relocks, ready for the next separation; at the same time, the delivery mechanism (4) sends the loaded packaging box (200) away and sends it into a new packaging box (200).

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