Automatic feeding device for optical communication filter carrier plate

Abstract

This invention relates to the technical field of optical filter tray feeding, specifically disclosing an automatic optical communication filter tray feeding device. The device includes a loading rack, a transfer assembly, and a gripping assembly slidably mounted on the transfer assembly, all mounted on a frame. The trays are stacked within the loading rack. A limiting assembly is provided on the frame, comprising: a central rod rotatably mounted on the frame; multiple clamping plates arranged circumferentially around the central rod; and control and fixing components that cooperate with the central rod for rotating and fixing it, respectively. The trays have slots on their sides that cooperate with the clamping plates. When the clamping plates rotate to a horizontal position, they engage with the slots on the bottommost tray. When the gripping assembly moves upward to grip the tray, the control component drives the central rod to rotate. This automatic optical communication filter tray feeding device avoids tray misalignment and improves feeding efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of filter tray feeding, and specifically to an automatic feeding device for optical communication filter trays. Background Technology

[0002] The filter carrier tray has multiple material slots arranged in an array. Each slot is used to fix a single optical film, ensuring that the optical film does not shift during the transfer process. This enables the optical film to be carried, transferred, and stacked to meet the needs of automated feeding.

[0003] Patent document CN212291875U discloses an automatic feeding and unloading device for filter trays, including a frame, an electric sliding screw pair, a tray, a feeding rack, an unloading rack, and a suction assembly. The tray contains a rectangular array of trays for carrying filters. The feeding rack includes right-angled limiting posts around the perimeter and pneumatic locking assemblies symmetrically arranged on both sides of the bottom. The limiting posts lock the tray at its four corners and then cooperate with the pneumatic locking assemblies to stabilize its position, allowing for the stacking of trays. The pneumatic locking assemblies include a tray release latch movably connected to the outside of the limiting posts via pins and a telescopic cylinder connected to the base via movable pins. The suction assembly includes a speed-regulating cylinder and a suction plate. The push rod of the speed-regulating cylinder vertically supports the suction plate, and the suction plate has positioning blocks on both sides that mate with positioning holes on the lower end face of the tray.

[0004] The device utilizes filter trays stacked within a feeding rack. An electric sliding screw pair controls the suction assembly to pick up a single tray and transfer it to the robot's gripping station. Once all the filters in the tray have been unloaded, the electric sliding screw pair controls the suction assembly to transfer the single-layer tray together to below the tray return rack. An empty tray is then supported by a lifting lock and placed inside the tray return rack. Subsequently, the electric sliding screw pair drives the suction assembly to transfer it again to below the feeding rack to continuously pick up single trays in a cycle.

[0005] However, this solution has the following problems: After the tray is retrieved, the telescopic cylinder needs to drive the tray release latch to reset and relock the remaining stacked trays. At this time, the upper tray will naturally sink because it loses the support of the bottom tray. Since the trays are only roughly positioned by the four corner limit posts, they are prone to horizontal displacement during the sinking process due to factors such as stacking gaps and the flatness deviation of the trays themselves. This causes the tray release latch to fail to accurately lock into the preset locking position when it resets, resulting in locking errors. This error accumulates with the number of tray retrievals, which not only causes unsmooth unlocking and tray jamming during subsequent tray retrievals, but also leads to positioning deviations of the suction components, affecting the accuracy of the tray transfer to the robot's gripping station, and ultimately reducing the overall feeding efficiency and the stability of filter feeding. Summary of the Invention

[0006] This invention provides an automatic feeding device for optical communication filter trays, which aims to solve the problem in related technologies where the trays in the feeding rack are prone to shifting during tray retrieval, leading to locking errors and affecting subsequent feeding.

[0007] The automatic feeding device for optical communication filter trays of the present invention includes: a feeding rack, a transfer assembly, and a gripping assembly slidably mounted on the transfer assembly, all mounted on a frame. The trays are stacked in the feeding rack. A limiting assembly is provided on the frame, comprising: a central rod rotatably mounted on the frame; multiple clamping plates arranged circumferentially around the central rod; a control component and a fixing component that cooperate with the central rod and are used to rotate and fix the central rod, respectively. The side of the tray is provided with a slot that cooperates with the clamping plates. When the clamping plates rotate to a horizontal position, they engage with the slot on the bottom tray. When the gripping assembly moves upward to grip the tray, the control component drives the central rod to rotate. Each time a tray is gripped, the central rod drives the clamping plates to rotate, causing the tray to move downward and separate. At the same time, another clamping plate rotates to a horizontal position and engages with the slot on the new bottom tray. The fixing component fixes the central rod when it stops rotating, thereby fixing the remaining trays.

[0008] The effect of this invention is that it uses a clamping plate to fix the trays in the loading rack, and when the gripping component grabs a tray, it works in conjunction with the gripping component to separate the bottom tray while simultaneously fixing and positioning a new tray at the bottom. Specifically, the transfer component moves the gripping component below the loading rack, simultaneously causing the clamping plate and control rod to cooperate. When the gripping component moves upward to grab the tray, the clamping plate moves synchronously with the control rod and control gear. The movement of the control gear drives the clamping plate to rotate via the intermediate rod. Each time the gripping component grabs a tray, the clamping plate rotates at a specified angle, separating the bottom tray and placing it on the gripping component. At the same time, another clamping plate gradually engages with the slot on the new bottom tray. During this process, the position of the tray is corrected so that the position of the bottom tray is the same each time the clamping plate rotates to a horizontal position, facilitating subsequent gripping of the tray by the gripping component and improving subsequent feeding operations, thus increasing feeding efficiency.

[0009] Preferably, the control component includes: a control gear coaxially connected to the intermediate rod, a control rack slidably mounted on the frame, and a control rod connected to the control rack. The control rack meshes with the control gear. The gripping assembly includes a horizontally arranged buckle plate. One end of the control rod away from the control rack extends to the buckle plate. When the gripping assembly moves to below the loading rack, the buckle plate cooperates with the control rod to drive the control rack to move when the gripping assembly moves upward.

[0010] Its effect is that when the gripping component moves to the loading rack, it drives the buckle plate to engage with the end of the control rod away from the control gear, so that when the gripping component moves upward, the control rod can drive the control gear to move, thereby adjusting the position of the clamping plate.

[0011] Preferably, the outer circumference of the intermediate rod is provided with multiple limiting grooves, and the fixing component includes: a limiting sleeve, a limiting block, and an elastic element 1 sleeved on the outside of the intermediate rod. The limiting sleeve is connected to the frame and has an installation groove inside. The limiting block is slidably disposed in the installation groove in the direction toward the intermediate rod. The elastic element 1 is disposed in the installation groove and connected to the limiting block. The elastic element 1 is used to drive the limiting block to move closer to the limiting groove. The end of the limiting block near the limiting groove has an inclined surface, and the inclined surface of the limiting block abuts against the inner wall of the limiting groove.

[0012] Its effect is that multiple slots are opened on the side of the middle rod, and each time the plate stops rotating, the elastic element can drive the limiting block to engage with the limiting slot, thereby fixing the position of the middle rod.

[0013] Preferably, the control gear is sleeved on the outside of the intermediate rod, and a ratchet is coaxially arranged on the outside of the intermediate rod. The inner wall of the control gear is provided with a pawl that cooperates with the ratchet. When the control gear moves upward, the pawl engages with the ratchet to drive the intermediate rod to rotate. When the control gear moves downward to reset, the pawl disengages from the ratchet.

[0014] Its effect is that the clamp rotates when the control rack moves upward and stops rotating when it moves downward to reset, so as to realize the unidirectional rotation of the clamp and thus achieve the stability of the clamp and the carrier plate.

[0015] Preferably, the card plate includes: a fixed part connected to the intermediate rod, and a sliding part that slidably engages with the fixed part. The sliding part is disposed at one end of the fixed part away from the intermediate rod. An elastic element two is disposed between the sliding part and the fixed part to connect the two. When the card plate is rotated to a horizontal position, the elastic element two is in a compressed state.

[0016] Preferably, two sets of limiting components are provided on both sides of the carrier plate, and two sets of locking plates are provided at intervals along the length of the intermediate rod. Two slots are provided on the side of the carrier plate near the intermediate rod. The intermediate rod is arranged in a direction parallel to the side of the carrier plate, and the two sets of locking plates on the intermediate rod are provided one-to-one with the two slots.

[0017] Preferably, the frame includes a sliding sleeve, and a control rack is slidably mounted inside the sliding sleeve. A central groove is formed through the control rack, and an auxiliary rod is slidably arranged in the central groove. An elastic element three connected to the auxiliary rod is arranged in the central groove. The elastic element three is used to drive the auxiliary rod to move in a direction away from the sliding sleeve. A stop bar is provided at the end of the auxiliary rod near the sliding sleeve. A retaining groove is formed on the side of the sliding sleeve away from the control rod, and the retaining groove is located near the bottom of the sliding sleeve. The end of the auxiliary rod away from the sliding sleeve extends to the outside of the central groove and has an inclined surface. Initially, the stop bar and the retaining groove are engaged to fix the control rack. When the buckle plate moves to engage with the control rod, it abuts against the end of the auxiliary rod through the inclined surface, and at the same time drives the auxiliary rod to move, so that the stop bar and the retaining groove are separated.

[0018] Preferably, the frame is provided with an empty material rack, and a support rod is provided on the side of the empty material rack. A locking block is rotatably mounted on the support rod. A torsion spring is provided at the connection between the locking block and the support rod. The torsion spring is used to drive the lower side of the locking block to rotate until it abuts against the support rod. When the locking block abuts against the support rod, it is in a horizontal state. A downward inclined surface is provided at the end of the locking block near the carrier. When the gripping component moves the carrier upward, the locking block rotates to allow the carrier to enter. When the gripping component resets, the torsion spring drives the locking block to reset and engage with the locking groove on the carrier.

[0019] Preferably, the gripping component includes: a receiving plate, and multiple clamping components mounted on the receiving plate. The clamping components include a first pusher mounted on the receiving plate and a clamping rod disposed at the output end of the first pusher. After the carrier is placed on the receiving plate, the first pusher simultaneously drives multiple clamping rods to move closer to the carrier to clamp the carrier. The transfer component is provided with a second pusher connected to the receiving plate, which is used to drive the receiving plate to move up and down.

[0020] Preferably, the end of the sliding part away from the intermediate rod is set in an arc shape.

[0021] Beneficial effects:

[0022] This invention uses multiple sets of rotatable pallets. As the pallets rotate, they cause the bottommost tray to separate and be placed on a receiving plate. Simultaneously, adjacent pallets gradually engage with the slots on the new bottommost tray during rotation. During this engagement process, the trays are positioned and corrected until the pallets are rotated to a horizontal position. This ensures that the position of each bottommost tray is the same, preventing tray misalignment and facilitating subsequent transfer, thus improving feeding efficiency. Attached Figure Description

[0023] Figure 1 This is a front view of the present invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the transfer component in this invention.

[0026] Figure 4 This is a schematic diagram of the gripping component in this invention.

[0027] Figure 5 This is a schematic diagram of the structure of the card plate and the carrier plate in this invention.

[0028] Figure 6 This is a schematic diagram of the card plate in this invention.

[0029] Figure 7 This is a schematic diagram of the cooperation between the buckle plate and the control rod in this invention.

[0030] Figure 8 This is a schematic diagram of the structure of the two sets of card plates in this invention.

[0031] Figure 9 This is a partial explosion diagram illustrating the control of the gear rack and sliding sleeve in this invention.

[0032] Figure 10 This is a schematic diagram of the auxiliary rod in this invention.

[0033] Figure 11 This is a schematic diagram of the ratchet and pawl structure in this invention.

[0034] Figure 12 This is a structural schematic diagram of the fastener in this invention.

[0035] Figure 13 This is a schematic diagram of the cooperation between the card block and the card slot in this invention.

[0036] Figure label:

[0037] 01. Carrier tray; 02. Slot; 1. Frame; 11. Slide plate; 111. Connecting frame; 12. Screw; 2. Loading rack; 3. Transfer assembly; 31. Drive component; 32. Slide rail; 33. Transfer seat; 331. Pushing component two; 4. Gripping assembly; 41. Buckle plate; 42. Receiving plate; 43. Clamping component; 431. Pushing component one; 432. Clamping rod; 5. Limiting assembly; 51. Intermediate rod; 511. Limiting groove; 52. Slot plate; 521. Fixing part; 522. Sliding part; 523. Elastic component two; 53. Control component; 531. Control gear; 532. Control rack; 533. Control rod; 54. Fixing component; 541. Limiting sleeve; 542. Limiting block; 543. Elastic component one; 544. Mounting groove; 6. Ratchet; 61. Pawl; 7. Sliding sleeve; 71. Stop groove; 8. Intermediate groove; 81. Auxiliary rod; 82. Elastic component three; 83. Stop rod; 9. Empty material rack; 91. Support rod; 92. Locking block. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 13As shown, the automatic feeding device for optical communication filter trays of the present invention includes a frame 1. The frame 1 is equipped with: a loading rack 2, an empty tray 9, a transfer assembly 3, a gripping assembly 4, and a limiting assembly 5. The loading rack 2 and the empty tray 9 are arranged at intervals on the frame 1. The loading rack 2 is used to place trays 01 containing filters. Multiple trays 01 are stacked vertically within the loading rack 2. Each tray 01 has multiple slots for placing filters, meaning each tray 01 holds multiple filters. The empty tray 9 is used to place empty trays 01. A loading position is provided between the loading rack 2 and the empty tray 9. The gripping assembly 4 is mounted on the transfer assembly 3, and the transfer assembly 3 drives the gripping assembly 4 to move between the loading rack 2 and the empty tray 9. The limiting component 5 is set on one side of the loading rack 2 to fix the carrier tray 01 on the loading rack 2, and at the same time, the bottom carrier tray 01 is spaced apart from the frame 1 so that the gripping component 4 can move to the bottom of the carrier tray 01.

[0040] During the processing of the filters, the transfer component 3 moves the gripping component 4 to the loading rack 2. At this time, the gripping component 4 is located below the carrier tray 01. Then, the gripping component 4 grips the carrier tray 01 located at the bottom. At the same time, the limiting component 5 cooperates to release the restriction of the carrier tray 01. The carrier tray 01 in the loading rack 2 moves downward under its own gravity. The limiting component 5 then fixes the newly bottom-positioned carrier tray 01. Subsequently, the transfer component 3 moves the carrier tray 01 to the processing position through the gripping component 4 so that the robot can grip the filters on the carrier tray 01 for loading. After all the filters on the carrier tray 01 have been gripped, the transfer component 3 moves the empty carrier tray 01 to the empty rack 9 and then stacks the empty carrier trays 01 in the empty rack 9.

[0041] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 The limiting assembly 5 includes: a middle rod 51, a clamping plate 52, a control component 53, and a fixing component 54. The middle rod 51 is rotatably mounted on the frame 1 and is arranged horizontally, parallel to the side of the carrier plate 01. The clamping plate 52 is connected to the side of the middle rod 51, and multiple clamping plates 52 are arranged circumferentially around the middle rod 51. A slot 02 is provided on the side of the carrier plate 01, and the clamping plate 52 can be engaged with the slot 02. The control component 53 and the fixing component 54 both cooperate with the middle rod 51, wherein the control component 53 is used to drive the middle rod 51 to rotate, and the fixing component 54 is used to fix the middle rod 51.

[0042] The intermediate rod 51 is flush with the bottommost tray 01. When the clamping plate 52 rotates to the horizontal position, it engages with the slot 02 on the bottommost tray 01 in the loading rack 2 to secure the tray 01. The gripping assembly 4 moves to the loading rack 2 and then moves upwards towards the bottommost tray 01. The gripping assembly 4 and the control unit 53 work together to rotate the intermediate rod 51. The rotation of the intermediate rod 51 causes the clamping plate 52 to rotate, and as it rotates, the tray 01 it engages with moves downwards and separates. Simultaneously, another clamping plate 52 rotates to the horizontal position and engages with the slot 02 of the new bottommost tray 01. The fixing member 54 secures the intermediate rod 51 when it stops rotating to secure the remaining tray 01.

[0043] Each time the gripping component 4 grips the carrier plate 01, the control component 53 drives the intermediate rod 51 and the clamping plate 52 to rotate at a certain angle, and this angle is the same as the included angle between the two clamping plates 52. That is, each time the intermediate rod 51 rotates, it will drive the next clamping plate 52 to rotate to the horizontal position.

[0044] The clamping plate 52 is designed with an arc shape on the side closest to the carrier plate 01. When the clamping plate 52 engages with the slot 02 on the carrier plate 01, the clamping plate 52 located diagonally above the bottommost carrier plate 01 corresponds to the slot 02 on the bottommost carrier plate 01. This allows the clamping plate 52 to gradually rotate through its arc end to engage with the slot 02 when the intermediate rod 51 rotates, thereby sequentially fixing multiple carrier plates 01.

[0045] Reference Figure 5 , Figure 7 , Figure 9 The control component 53 includes: a control gear 531, a control rack 532, and a control rod 533. The control gear 531 is sleeved on the outside of the intermediate rod 51 and is coaxially arranged with the intermediate rod 51. The control rack 532 is slidably mounted on the frame 1. The control rod 533 is connected to the end of the control rack 532 near the frame 1 and is arranged in a horizontal direction. The end of the control rod 533 away from the control rack 532 extends to the gripping component 4.

[0046] When the gripping component 4 moves to the loading rack 2, the control rod 533 cooperates with the gripping component 4. When the gripping component 4 moves upward, the control rod 533 drives the control rack 532 to move. The movement of the control rack 532 drives the control gear 531 to rotate, which in turn drives the intermediate rod 51 to rotate.

[0047] Reference Figure 9 , Figure 11 The control gear 531 is rotated outside the intermediate rod 51, meaning the control gear 531 can rotate relative to the intermediate rod 51. A ratchet 6 is coaxially arranged outside the intermediate rod 51, and a pawl 61 is arranged on the inner wall of the control gear 531, which engages with the ratchet 6.

[0048] When the control rack 532 moves upward, the pawl 61 engages with the ratchet 6 to drive the intermediate rod 51 to rotate. When the control rack 532 moves downward, the pawl 61 disengages from the ratchet 6, causing the control rack 531 to rotate relative to the intermediate rod 51. At this time, the latch plate 52 remains fixed. By setting the ratchet 6 and pawl 61, the intermediate rod 51 can only be driven to rotate when the control rack 532 moves upward, and the intermediate rod 51 is no longer driven to rotate when the control rack 532 returns to its original position.

[0049] Reference Figure 9 , Figure 12 Multiple limiting grooves 511 are provided circumferentially on the outer side of the intermediate rod 51. The fixing component 54 includes: a limiting sleeve 541, a limiting block 542, and an elastic element 543. The limiting sleeve 541 is connected to the frame 1. An installation groove 544 is provided on the inner side of the limiting sleeve 541. The limiting block 542 is slidably assembled in the installation groove 544 and is slidably positioned in the direction toward the intermediate rod 51. The elastic element 543 is disposed in the installation groove 544 and connected to the limiting block 542. The elastic element 543 is configured as a spring and is used to drive the limiting block 542 to move in the direction toward the limiting grooves 511. An inclined surface is provided at one end of the limiting block 542 near the limiting groove 511, and the inclined surface of the limiting block 542 abuts against the inner wall of the limiting groove 511.

[0050] Initially, the elastic element 543 moves the limiting block 542 into the limiting groove 511 and engages with it to fix the intermediate rod 51. The number of slots 02 is the same as the number of plates 52, meaning that multiple slots 02 are correspondingly set with multiple plates 52. The control rack 532 rotates the plates 52 with each movement, pushing the limiting block 542 away from the limiting groove 511 under the action of the inclined surface of the limiting block 542, and compressing the elastic element 543. Subsequently, when another plate 52 rotates to a horizontal position, the limiting block 542 aligns with another limiting groove 511, and the elastic element 543 engages the limiting block 542 with the limiting groove 511, thereby fixing the position of the intermediate rod 51.

[0051] Reference Figure 5 , Figure 6 The card plate 52 includes a fixed part 521 and a sliding part 522. The fixed part 521 is fixedly connected to the intermediate rod 51. The sliding part 522 is sleeved on the end of the fixed part 521 away from the intermediate rod 51 and slides in cooperation with the fixed part 521. The sliding part 522 slides on the fixed part 521 in a direction toward the rotation axis of the intermediate rod 51. An elastic element 523 is provided between the sliding part 522 and the fixed part 521. The elastic element 523 is a spring and is connected to the fixed part 521 and the sliding part 522 respectively.

[0052] As the clamping plate 52 rotates and gradually engages with the clamping slot 02, the sliding part 522 moves relative to the fixed part 521. When the clamping plate 52 rotates to a horizontal position, the end of the sliding part 522 engages with the clamping slot 02, at which point the elastic element 523 is in a compressed state. This improves the stability of the engagement between the sliding part 522 and the carrier plate 01.

[0053] Reference Figure 5 , Figure 8 In addition, two sets of limiting components 5 and two sets of carrier tray 01 are correspondingly provided on both sides, and two sets of clamping plates 52 are also correspondingly provided with the two sets of limiting components 5. The two sets of limiting components 5 fix the two sides of the carrier tray 01 respectively to improve the stability of the carrier tray 01. At the same time, two sets of clamping plates 52 are provided along the length of the middle rod 51, and two slots 02 are opened on the side of the carrier tray 01 near the middle rod 51. The two slots 02 are correspondingly provided with the two sets of clamping plates 52. The two sets of clamping plates 52 and the two sets of slots 02 are used to improve the fixing points of the carrier tray 01, further improving the stability of the carrier tray 01.

[0054] Reference Figure 4 , Figure 5 , Figure 7 The gripping component 4 includes a buckle plate 41, a receiving plate 42, and a clamping member 43. The receiving plate 42 is slidably mounted on the transfer component 3. A second pusher 331 is provided on the transfer component 3. The second pusher 331 is a cylinder, and its output end is connected to the receiving plate 42 to drive the receiving plate 42 to move up and down. The clamping member 43 is installed on the receiving plate 42 to clamp and carry the carrier plate 01. The buckle plate 41 is located on the lower side of the receiving plate 42 and is arranged horizontally. The buckle plate 41 is also arranged in the direction of horizontal movement of the receiving plate 42, and the bottom of the buckle plate 41 is bent towards the control rod 533. The end of the control rod 533 away from the control gear 532 extends to the buckle plate 41.

[0055] When the transfer component 3 moves the gripping component 4 to the loading rack 2, the buckle plate 41 moves to engage with the end of the control rod 533, meaning the end of the control rod 533 is located between the bent portion of the buckle plate 41 and the receiving plate 42. When the pusher 331 moves the receiving plate 42 upward, the buckle plate 41 moves the control rod 533, which in turn moves the control gear 532. The movement of the control gear 532 causes the intermediate rod 51 to rotate, thus separating the bottommost carrier plate 01. Simultaneously, the clamping component 43 on the receiving plate 42 clamps the carrier plate 01. Subsequently, the pusher 331 resets the receiving plate 42, which in turn resets the control rod 533 and the control gear 532. As the transfer component 3 moves the receiving plate 42 toward the empty rack 9, the buckle plate 41 gradually separates from the control rod 533. This ensures that the control gear 532 moves synchronously each time the receiving plate 42 moves upward within the loading rack 2.

[0056] Reference Figure 4 The clamping component 43 includes a pusher 431 and a clamping rod 432. The pusher 431 is configured as a cylinder and is mounted on the receiving plate 42. The clamping rod 432 is located at the output end of the pusher 431. The pusher 431 drives the clamping rod 432 to move towards the center of the receiving plate 42. The pusher 431 is located on the side of the receiving plate 42 away from the carrier plate 01. Multiple sets of pushers 431 and clamping rods 432 are provided. After the carrier plate 01 is placed on the receiving plate 42, the pusher 431 drives multiple clamping rods 432 to move synchronously towards the carrier plate 01 until the clamping rods 432 abut against the carrier plate 01, thereby fixing the carrier plate 01.

[0057] Reference Figure 2 , Figure 5 , Figure 9 , Figure 10 The frame 1 includes a sliding sleeve 7. A control rack 532 is slidably mounted on the sliding sleeve 7. A central groove 8 is formed through the control rack 533, and an auxiliary rod 81 is slidably disposed within the central groove 8. An elastic element 82, which is a spring, is disposed within the central groove 8. The elastic element 82 is connected to the auxiliary rod 81 and is used to drive the auxiliary rod 81 to move away from the sliding sleeve 7. A stop rod 83 is provided at the end of the auxiliary rod 81 near the sliding sleeve 7. A stop groove 71 is formed on the side of the sliding sleeve 7 away from the control rack 533, and the stop groove 71 is located near the bottom of the sliding sleeve 7. The end of the auxiliary rod 81 away from the sliding sleeve 7 extends to the outside of the central groove 8 and has an inclined surface.

[0058] Initially, the stop rod 83 engages with the stop groove 71 to fix the control rod 532. When the buckle plate 41 moves with the receiving plate 42 to the control rod 533, the buckle plate 41 drives the auxiliary rod 81 to move via the inclined surface of the auxiliary rod 81. The movement of the auxiliary rod 81 causes the stop rod 83 to separate from the stop groove 71, so that when the buckle plate 41 engages with the control rod 533, the restriction on the control rod 532 is released. Similarly, when the receiving plate 42 resets, it drives the control rod 532 to move to the initial position. When the buckle plate 41 separates from the control rod 533, the elastic element 82 can drive the stop rod 83 to engage with the stop groove 71, so that when the buckle plate 41 moves to the loading rack 2 again, it can engage with the control rod 533 again.

[0059] Reference Figure 1 , Figure 2A slide plate 11 is horizontally slidably mounted on the frame 1. A sliding sleeve 7 is installed on the slide plate 11. A connecting frame 111 is provided on the slide plate 11. An intermediate rod 51 is rotatably mounted on the connecting frame 111. A screw 12 is threaded onto the frame 1, and the end of the screw 12 is connected to the slide plate 11. The distance between the slide plate 11 and the loading rack 2 can be adjusted by rotating the screw 12. This, in turn, adjusts the distance between the pallet 52 and the carrier tray 01 to accommodate carrier trays of different specifications.

[0060] Reference Figure 2 , Figure 13 A support rod 91 is provided on the side of the empty material rack 9, and the support rod 91 is arranged horizontally. A locking block 92 is provided on the support rod 91, and the locking block 92 is rotatably engaged with the support rod 91. A torsion spring is provided at the connection between the two, which is used to drive the locking block 92 to rotate toward the carrier tray 01. When the locking block 92 rotates to the horizontal position, its side abuts against the support rod 91. A downward inclined surface is opened at the end of the locking block 92 near the carrier tray 01. The locking block 92 is engaged in the locking groove 02 to fix the intermediate rod 51. Thus, each time the intermediate rod 51 stops rotating, the elastic element 543 drives the limiting block 542 to engage with the limiting groove 511 to fix the intermediate rod 51, thereby fixing the carrier tray 01 in the loading rack 2.

[0061] Initially, the locking block 92 engages with the slot 02 on the carrier tray 01, and the locking block 92 is in a horizontal position. At this time, the locking block 92 supports the carrier tray 01 inside the empty material rack 9 by cooperating with the bottommost carrier tray 01. When the gripping component 4 moves the empty carrier tray 01 to the empty material rack 9, the gripping component 4 is located below the locking block 92. Then, the gripping component 4 moves the carrier tray 01 upward. As the carrier tray 01 on the gripping component 4 abuts against the bottom carrier tray 01 inside the empty material rack 9, it moves the empty carrier tray 01 inside the empty material rack 9 upward. At the same time, the locking block 92 rotates and separates from the slot 02 on the carrier tray 01. When the side of the carrier tray 01 on the gripping component 4 moves to abut against the end of the locking block 92, the gripping component 4 moves in the opposite direction, and the locking block 92 rotates back to its original position under the action of the torsion spring, engaging with the slot 02 on the carrier tray 01 on the gripping component 4 to fix it. By repeating this process, empty trays 01 can be stacked and placed inside the empty material rack 9.

[0062] There are two sets of support rods 91 and locking blocks 92, which are respectively positioned on both sides of the moving direction of the gripping component 4 to prevent the support rods 91 and locking blocks 92 from interfering with the movement of the gripping component 4. At the same time, the two sets of support rods 91 and locking blocks 92 cooperate with both sides of the carrier plate 01 to improve the stability of the carrier plate 01.

[0063] Reference Figure 1 , Figure 2 , Figure 3The transfer assembly 3 includes: a drive component 31, a slide rail 32, and a transfer seat 33. The drive component 31 is mounted on the frame 1 and is configured as a motor. A drive belt is provided at the output end of the drive component 31. The slide rail 32 is mounted on the frame 1 and is arranged along the interval direction between the loading rack 2 and the empty rack 9. The transfer seat 33 is slidably engaged with the slide rail 32. The pusher component 331 is mounted on the transfer seat 33, and the drive belt is connected to the transfer seat 33.

[0064] The drive unit 31 drives the transfer seat 33 to move via the drive belt, so that the transfer seat 33 moves along the direction of the slide rail 32, thereby adjusting the position of the receiving plate 42 to transfer the tray 01 to the designated position for unloading, loading and other operations.

[0065] The implementation principle of this invention is as follows: During loading, trays 01 containing filters are stacked inside the loading rack 2. The locking plate 52 of the limiting component 5 engages with the slot 02 of the bottom tray 01 to fix the tray 01. The transfer component 3 drives the gripping component 4 to the loading rack 2. The locking plate 41 of the gripping component 4 cooperates with the control rod 533. When the receiving plate 42 moves upward, the locking plate 41 and the control rod 533 drive the control rack 532 to move upward accordingly. The control rack 532 drives the intermediate rod 51 to rotate via the ratchet 6 and the pawl 61, causing the locking plate 52 to separate from the slot 02 of the bottom tray 01. At the same time, the clamping component 43 clamps the tray 01. Then the receiving plate 42 is reset, and the transfer component 3 brings the tray 01 to the processing position for the robot to grip the filters.

[0066] After the bottom tray 01 is separated, another plate 52 rotates to a horizontal position and simultaneously engages with the slot 02 of the new bottom tray 01, thus fixing the tray 01 in the loading rack 2 again.

[0067] When placing the empty tray 01, after the filter is picked up, the transfer component 3 moves the empty tray 01 to the empty material rack 9. The locking block 92 engages with the slot 02 of the tray 01 to support the empty tray 01. When the gripping component 4 moves the empty tray 01 upward, it moves the empty tray 01 in the empty material rack 9 upward. The locking block 92 rotates and separates from the slot 02. When the side of the tray 01 on the gripping component 4 abuts against the end of the locking block 92, the gripping component 4 moves in the opposite direction. The locking block 92 resets under the action of the torsion spring and engages with the slot 02, realizing the stacking of the empty trays 01.

[0068] When the receiving plate 42 moves upward, the carrier plate 52 rotates to transfer the carrier plate 01 onto the receiving plate 42. At the same time, another card plate 52 gradually engages with the slot 02 on the carrier plate 01. This process prevents the carrier plate 01 from shifting. During the engagement of the card plate 52 with the slot 02, the carrier plate 01 can be corrected to achieve automatic and accurate gripping and transfer of the carrier plate 01, thereby improving the feeding efficiency.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic feeding device for optical communication filter trays, comprising: a feeding rack, a transfer assembly, and a gripping assembly slidably mounted on the transfer assembly, wherein the trays are stacked within the feeding rack, characterized in that, The frame is equipped with a limiting assembly, which includes: a central rod rotatably mounted on the frame, multiple clamping plates arranged circumferentially around the central rod, and control and fixing components that cooperate with the central rod for rotating and fixing the central rod respectively. The side of the carrier tray has a slot that cooperates with the clamping plates. When the clamping plates rotate to the horizontal position, they engage with the slot on the bottommost carrier tray. When the gripping assembly moves upward to grip the carrier tray, the control component drives the central rod to rotate. Each time a grip is performed, the central rod drives the clamping plates to rotate, causing the carrier tray to move downward and separate. At the same time, another clamping plate rotates to the horizontal position and engages with the slot on the new bottommost carrier tray. The fixing component fixes the central rod when it stops rotating to secure the remaining carrier tray. The control components include: a control gear coaxially connected to the intermediate rod, a control rack slidably mounted on the frame, and a control rod connected to the control rack. The control rack meshes with the control gear. The gripping assembly includes a horizontally arranged buckle plate. One end of the control rod away from the control rack extends to the buckle plate. When the gripping assembly moves to below the loading rack, the buckle plate cooperates with the control rod to drive the control rack to move when the gripping assembly moves upward. The frame includes a sliding sleeve, in which a control rack is slidably mounted. A central groove is formed through the control rack, and an auxiliary rod is slidably positioned within the central groove. An elastic element three connected to the auxiliary rod is located within the central groove, and the elastic element three is used to drive the auxiliary rod to move away from the sliding sleeve. A stop bar is provided at the end of the auxiliary rod near the sliding sleeve. A retaining groove is formed on the side of the sliding sleeve away from the control rod, near the bottom of the sliding sleeve. The end of the auxiliary rod away from the sliding sleeve extends to the outside of the central groove and has an inclined surface. Initially, the stop bar and the retaining groove engage to fix the control rack. When the buckle plate moves to engage with the control rod, it abuts against the end of the auxiliary rod through the inclined surface of the auxiliary rod, simultaneously driving the auxiliary rod to move, thereby separating the stop bar from the retaining groove.

2. The automatic feeding device for optical communication filter trays according to claim 1, characterized in that, The outer circumference of the intermediate rod is provided with multiple limiting grooves. The fixing components include: a limiting sleeve, a limiting block, and an elastic element 1, which are sleeved on the outside of the intermediate rod. The limiting sleeve is connected to the frame and has an installation groove inside. The limiting block is slidably disposed in the installation groove in the direction toward the intermediate rod. The elastic element 1 is disposed in the installation groove and connected to the limiting block. The elastic element 1 is used to drive the limiting block to move closer to the limiting groove. The end of the limiting block near the limiting groove has an inclined surface, and the inclined surface of the limiting block abuts against the inner wall of the limiting groove.

3. The automatic feeding device for optical communication filter trays according to claim 1, characterized in that, The control gear is sleeved on the outside of the intermediate rod. A ratchet is coaxially mounted on the outside of the intermediate rod. A pawl that engages with the ratchet is mounted on the inner wall of the control gear. When the control gear moves upward, the pawl engages with the ratchet to drive the intermediate rod to rotate. When the control gear moves downward to reset, the pawl disengages from the ratchet.

4. The automatic feeding device for optical communication filter trays according to claim 1, characterized in that, The card plate includes: a fixed part connected to the intermediate rod, and a sliding part that slides with the fixed part. The sliding part is located at the end of the fixed part away from the intermediate rod. An elastic element 2 is provided between the sliding part and the fixed part to connect the two. When the card plate is rotated to the horizontal position, the elastic element 2 is in a compressed state.

5. The automatic feeding device for optical communication filter trays according to claim 4, characterized in that, Two sets of limiting components are provided on both sides of the carrier plate. Two sets of locking plates are provided on the middle rod at intervals along its length. Two slots are provided on the side of the carrier plate near the middle rod. The middle rod is set in a direction parallel to the side of the carrier plate. The two sets of locking plates on the middle rod are set one-to-one with the two slots.

6. The automatic feeding device for optical communication filter trays according to claim 1, characterized in that, An empty material rack is installed on the frame, and a support rod is installed on the side of the empty material rack. A locking block is rotatably installed on the support rod. A torsion spring is installed at the connection between the locking block and the support rod. The torsion spring is used to drive the lower side of the locking block to rotate until it abuts against the support rod. When the locking block abuts against the support rod, it is in a horizontal state. A downward slope is opened at the end of the locking block near the carrier. When the gripping component moves the carrier upward, the locking block rotates to allow the carrier to enter. When the gripping component resets, the torsion spring drives the locking block to reset and engage with the slot on the carrier.

7. The automatic feeding device for optical communication filter trays according to claim 1, characterized in that, The gripping component includes: a receiving plate and multiple clamping components mounted on the receiving plate. The clamping components include a pusher component one mounted on the receiving plate and a clamping rod located at the output end of the pusher component one. After the carrier plate is placed on the receiving plate, the pusher component one simultaneously drives multiple clamping rods to move closer to the carrier plate to clamp the carrier plate. The transfer component is provided with a pusher component two connected to the receiving plate. The pusher component two is used to drive the receiving plate to move up and down.

8. The automatic feeding device for optical communication filter trays according to claim 4, characterized in that, The end of the sliding part away from the middle rod is designed as an arc.

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