Automatic tray loading device

Abstract

The application discloses a tray automatic feeding device, which comprises a base, a circulating conveying mechanism arranged on the top of the base, a top tray, a bottom tray and a supporting bottom shell, wherein the supporting bottom shell is slidably connected with the circulating conveying mechanism through a sliding base; the lifting mechanism comprises a support, a supporting plate with a first sliding groove arranged on the top of the support, a gas rod arranged on the side wall of the supporting plate, a sliding block slidably connected in the first sliding groove, an L-shaped connecting rod with a second sliding groove slidably connected with the sliding block arranged on one end of the L-shaped connecting rod, the other end of the L-shaped connecting rod connected with the movable end of the gas rod, the corner of the L-shaped connecting rod rotatably connected with the supporting plate, a mechanical arm arranged on the side of the supporting plate opposite to the gas rod, and one end of the mechanical arm fixedly connected with the sliding block. The application realizes the circulation and reciprocation of the tray on the base, reduces the equipment cost, improves the single carrying capacity of the material on the basis of reducing the floor area, and greatly improves the feeding efficiency.

Description

Technical Field

[0001] This invention relates to an automatic pallet feeding device, belonging to the field of fingerprint module processing technology. Background Technology

[0002] The fingerprint module is the core component of a fingerprint lock. It is installed on devices such as fingerprint access control systems or hard drives and is used to collect and recognize fingerprints. A fingerprint module mainly consists of a fingerprint acquisition module, a fingerprint recognition module, and extended function modules.

[0003] A search revealed Chinese patent publication number CN214988506U, which discloses an automatic pallet loading and circulation device. This device includes a conveyor line fixing base, a loading conveyor mechanism and a unloading conveyor mechanism located to the left and right of the conveyor line fixing base respectively, a product circulation mechanism located on one side of the conveyor line fixing base, and a control system. Full-load sensors are installed on both the loading and unloading conveyor mechanisms. The control system controls the start and stop of the pallet operation. The control system also controls the product circulation mechanism to orderly transport products to be processed on the loading conveyor mechanism to the processing stage, and orderly transport processed products to the unloading conveyor mechanism. This device achieves maximum product loading and circulation in a very small space, with low cost and high efficiency.

[0004] The aforementioned device carries materials on a pallet and circulates the pallet between the loading and unloading conveyors via a product circulation mechanism. However, the pallet of this device has only one carrying space, resulting in a small single transfer capacity and low loading efficiency. Furthermore, the dense loading makes it difficult for the device to pick up materials from the pallet and places high demands on the space required for the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic pallet feeding device, which not only increases the single carrying capacity of materials, facilitates material picking, but also reduces the requirements of the equipment for operating space and saves space resources.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an automatic pallet feeding device, comprising: a base, a circulating conveying mechanism provided on the top of the base, and multiple pallet mechanisms movably arranged on the circulating conveying mechanism, and a lifting mechanism cooperating with the pallet mechanism provided on multiple sides of the circulating conveying mechanism.

[0007] The pallet mechanism includes a top pallet, a bottom pallet, and a supporting base shell. The supporting base shell is slidably connected to the circulating conveying mechanism via a slide block. The bottom pallet is located between the top pallet and the supporting base shell. A supporting cylinder with an internally rotatably connected support shaft is provided on the side wall of the bottom pallet. Both ends of the support shaft pass through the supporting cylinder and are fixedly connected to one end of a connecting rod. The other end of the connecting rod is fixedly connected to the side wall of the top pallet. A torsion spring is provided on the outer wall of the support shaft, and an inclined groove is provided on the outer wall of one of the connecting rods.

[0008] The lifting mechanism includes: a support, and a support plate with a first groove fixedly installed on the top of the support, and a first air rod provided on the side wall of the support plate. A slider is slidably connected inside the first groove. One end of an L-shaped connecting rod is provided with a second groove that is slidably connected to the slider, and the other end is connected to the movable end of the first air rod. The corner of the L-shaped connecting rod is rotatably connected to the support plate. A mechanical arm is provided on the side of the support plate opposite to the first air rod. One end of the mechanical arm is fixedly connected to the slider, and the other end is provided with an L-shaped bracket that cooperates with the inclined groove, so that when the first air rod retracts, it can pull the L-shaped bracket to move along the inclined groove, so that the connecting rod moves around the axis. A limiting baffle is installed on the side wall of the bottom tray.

[0009] The L-shaped bracket is connected to the robotic arm via a damping bearing seat, and the angle between the axis of the limiting baffle and the vertical direction is 30°.

[0010] The following are further improvements to the above technical solution:

[0011] 1. In the above scheme, the insert plates are set at equal intervals on the top of a base plate.

[0012] 2. In the above scheme, the top tray and the bottom tray are each provided with a number of partitions at intervals, and a number of slots are provided along the length of the partitions.

[0013] 3. In the above scheme, a base plate with several insert plates mounted on the top is provided inside the supporting base shell, and the insert plate has a slot in the middle, so that the insert plate forms an upper stop and a lower stop, and the upper stop and the lower stop can be embedded into the slots of the top tray and the bottom tray respectively, thereby dividing the top tray and the bottom tray into several material units. A second air rod is provided between the base plate and the inner wall of the supporting base shell.

[0014] 4. In the above scheme, a telescopic limiting rod is provided between the base plate and the supporting bottom shell and on one side of the second gas rod.

[0015] 5. In the above scheme, the robotic arm is fixedly connected to a connecting plate with a limiting rod, and the limiting rod, which is set parallel to the robotic arm, is slidably connected to a limiting plate installed on the side wall of the support plate.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0017] 1. The automatic pallet feeding device of the present invention has a supporting base shell that is slidably connected to a circulating conveying mechanism via a sliding seat. The bottom pallet is located between the top pallet and the supporting base shell. A supporting cylinder with an internally rotatably connected support shaft is provided on the side wall of the bottom pallet. Both ends of the support shaft pass through the supporting cylinder and are fixedly connected to one end of a connecting rod. The other end of the connecting rod is fixedly connected to the side wall of the top pallet. A torsion spring is provided on the outer wall of the support shaft, and an inclined groove is provided on the outer wall of one of the connecting rods. The material is fed along the circulating conveying mechanism through the supporting shell with the top and bottom pallets, realizing the reciprocating circulation of the pallet on the base. This reduces equipment costs. The top and bottom pallets can also receive materials separately, increasing the single-load capacity of materials while reducing the floor space, and greatly improving the feeding efficiency.

[0018] 2. The automatic pallet feeding device of the present invention has a support plate with a first sliding groove fixedly installed on the top of the support, and a first air rod is provided on the side wall of the support plate. A slider is slidably connected inside the first sliding groove. One end of an L-shaped connecting rod has a second sliding groove that is slidably connected to the slider, and the other end is connected to the movable end of the first air rod. The corner of the L-shaped connecting rod is rotatably connected to the support plate. A robotic arm is provided on the side of the support plate opposite to the first air rod. One end of the robotic arm is fixedly connected to the slider, and the other end is provided with an L-shaped bracket that cooperates with the inclined groove. The L-shaped bracket is rotated by the retraction of the first air rod. Under the action of the inclined groove and the L-shaped bracket, the pull rod moves around the axis, so that the top pallet can be moved from directly above the bottom pallet to one side, thereby facilitating the picking up of materials in the bottom pallet, reducing the requirements of the equipment for operating space, and saving space resources.

[0019] 3. The automatic pallet feeding device of the present invention has several partitions spaced apart inside the top and bottom pallets, and several slots opened along the length of the partitions. Inside the supporting shell, there is a bottom plate with several insert plates mounted on the top, and the insert plates have a slot in the middle, so that the insert plates form an upper stop and a lower stop. A second air rod is provided between the bottom plate and the inner wall of the supporting shell. By correspondingly cooperating with the top and bottom pallets and the feeding trough, the material transport volume can be increased in a single feeding process. Furthermore, by driving the bottom plate to move upward through the second air rod, the upper and lower stops of the insert plates can be embedded into the top and bottom pallets, thereby dividing the internal space of the top and bottom pallets into several material units, which are convenient for subsequent gripping by the robot arm. This not only improves the material transport efficiency and the positional accuracy of the materials, but also reduces the risk of misoperation, thereby improving the overall production efficiency. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the automatic pallet feeding device of the present invention;

[0021] Appendix Figure 2 This is a schematic diagram of the circulating conveying mechanism in the automatic pallet feeding device of the present invention;

[0022] Appendix Figure 3 This is an exploded view of the pallet mechanism in the automatic pallet feeding device of the present invention;

[0023] Appendix Figure 4 This is a partial structural diagram of the pallet mechanism in the automatic pallet feeding device of the present invention;

[0024] Appendix Figure 5 This is a partial exploded view of the automatic pallet feeding device of the present invention.

[0025] In the attached diagrams: 1. Base; 2. Circulating conveyor mechanism; 3. Pallet mechanism; 4. Feeding chute; 5. Accessory feeder; 201. First screw guide rail; 202. First conveying slide rail; 203. First switching slide rail; 204. Second screw guide rail; 205. Second conveying slide rail; 206. Reciprocating slide rail; 207. Second switching slide rail; 301. Top pallet; 302. Inclined chute; 303. Connecting rod; 304. Support cylinder; 305. Bottom pallet; 306. Insert plate; 307. Empty chute; 308. Base plate; 309. Second air rod; 3 10. Telescopic limiting rod; 311. Support base; 312. Slide; 313. Limiting baffle; 314. Slot; 315. Partition; 316. Support shaft; 317. Torsion spring; 601. L-shaped bracket; 602. Damping bearing seat; 603. Robotic arm; 604. First pneumatic rod; 605. Slider; 606. Support plate; 607. First slide groove; 608. Support; 609. Limiting insert plate; 610. Second slide groove; 611. L-shaped connecting rod; 612. Limiting insert rod; 613. Connecting plate; 71. Upper stop; 72. Lower stop. Detailed Implementation

[0026] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0027] Example 1: An automatic pallet feeding device includes: a base 1, a circulating conveying mechanism 2 is provided on the top of the base 1, and a plurality of pallet mechanisms 3 are movably arranged on the circulating conveying mechanism 2, and a lifting mechanism that cooperates with the pallet mechanism 3 is provided on multiple sides of the circulating conveying mechanism 2.

[0028] The pallet mechanism includes a top pallet 301, a bottom pallet 305, and a supporting base shell 311. The supporting base shell 311 is slidably connected to the circulating conveying mechanism 2 via a slide block 312. The bottom pallet 305 is located between the top pallet 301 and the supporting base shell 311. A supporting cylinder 304 with a support shaft 316 internally rotatably connected is provided on the side wall of the bottom pallet 305. Both ends of the support shaft 316 pass through the supporting cylinder 304 and are fixedly connected to one end of a connecting rod 303. The other end of the connecting rod 303 is fixedly connected to the side wall of the top pallet 301. A torsion spring 317 is provided on the outer wall of the support shaft 316, and an inclined groove 302 is provided on the outer wall of one of the connecting rods 303.

[0029] The lifting mechanism includes: a support 608, and a support plate 606 with a first sliding groove 607 fixedly installed on the top of the support 608. A first gas spring 604 is provided on the side wall of the support plate 606. A slider 605 is slidably connected inside the first sliding groove 607. One end of an L-shaped connecting rod 611 has a second sliding groove 610 that is slidably connected to the slider 605, and the other end is connected to the movable end of the first gas spring 604. The corner of the L-shaped connecting rod 611 is aligned with... The support plates 606 are rotatably connected. A mechanical arm 603 is provided on the side of the support plate 606 opposite to the first air rod 604. One end of the mechanical arm 603 is fixedly connected to the slider 605, and the other end is provided with an L-shaped bracket 601 that cooperates with the inclined groove 302. When the first air rod 604 retracts, it can pull the L-shaped bracket 601 to move along the inclined groove 302, so that the connecting rod 303 moves around the axis. A limiting baffle 313 is installed on the side wall of the bottom tray 305.

[0030] The L-shaped bracket 601 and the robotic arm 603 are connected by a damping bearing seat 602, and the angle between the axis of the limiting baffle 313 and the vertical direction is 30°.

[0031] Insert plates 306 are equidistantly spaced on the top of a base plate 308.

[0032] A base plate 308 is provided inside the supporting base shell 311, with several insert plates 306 mounted on the top. The insert plates 306 have a slot 307 in the middle, so that the insert plates 306 form an upper stop 71 and a lower stop 72. The upper stop 71 and the lower stop 72 can be embedded into the slots 314 of the top tray 301 and the bottom tray 305 respectively, thereby dividing the top tray 301 and the bottom tray 305 into several material units. A second air rod 309 is provided between the base plate 308 and the inner wall of the supporting base shell 311.

[0033] A telescopic limiting rod 310 is provided between the base plate 308 and the supporting base shell 311 and on one side of the second gas spring 309.

[0034] Example 2: An automatic pallet feeding device includes: a base 1, a circulating conveying mechanism 2 is provided on the top of the base 1, and a plurality of pallet mechanisms 3 are movably arranged on the circulating conveying mechanism 2, and a lifting mechanism that cooperates with the pallet mechanism 3 is provided on multiple sides of the circulating conveying mechanism 2.

[0035] The pallet mechanism includes a top pallet 301, a bottom pallet 305, and a supporting base shell 311. The supporting base shell 311 is slidably connected to the circulating conveying mechanism 2 via a slide block 312. The bottom pallet 305 is located between the top pallet 301 and the supporting base shell 311. A supporting cylinder 304 with a support shaft 316 internally rotatably connected is provided on the side wall of the bottom pallet 305. Both ends of the support shaft 316 pass through the supporting cylinder 304 and are fixedly connected to one end of a connecting rod 303. The other end of the connecting rod 303 is fixedly connected to the side wall of the top pallet 301. A torsion spring 317 is provided on the outer wall of the support shaft 316, and an inclined groove 302 is provided on the outer wall of one of the connecting rods 303.

[0036] The lifting mechanism includes: a support 608, and a support plate 606 with a first sliding groove 607 fixedly installed on the top of the support 608. A first gas spring 604 is provided on the side wall of the support plate 606. A slider 605 is slidably connected inside the first sliding groove 607. One end of an L-shaped connecting rod 611 has a second sliding groove 610 that is slidably connected to the slider 605, and the other end is connected to the movable end of the first gas spring 604. The corner of the L-shaped connecting rod 611 is aligned with... The support plates 606 are rotatably connected. A mechanical arm 603 is provided on the side of the support plate 606 opposite to the first air rod 604. One end of the mechanical arm 603 is fixedly connected to the slider 605, and the other end is provided with an L-shaped bracket 601 that cooperates with the inclined groove 302. When the first air rod 604 retracts, it can pull the L-shaped bracket 601 to move along the inclined groove 302, so that the connecting rod 303 moves around the axis. A limiting baffle 313 is installed on the side wall of the bottom tray 305.

[0037] The L-shaped bracket 601 and the robotic arm 603 are connected by a damping bearing seat 602, and the angle between the axis of the limiting baffle 313 and the vertical direction is 30°.

[0038] Insert plates 306 are equidistantly spaced on the top of a base plate 308.

[0039] The top tray 301 and the bottom tray 305 are each provided with a number of partitions 315 at intervals, and a number of slots 314 are provided along the length of the partitions 315.

[0040] The aforementioned robotic arm 603 is fixedly connected to a connecting plate 613 with a limiting rod 612. The limiting rod 612, which is parallel to the robotic arm 603, is slidably connected to a limiting plate 609 installed on the side wall of the support plate 606.

[0041] The working principle is as follows:

[0042] During production, the pallet mechanism supports the top pallet connected above the bottom pallet through the connecting rods on both sides. When loading, the fingerprint module can be sorted and arranged by the feeder and pushed synchronously through the feeding slot to the multiple partitions in the top and bottom pallets, quickly completing the loading of double-layer materials. At this time, the empty slot is located between the partitions of the bottom pallet.

[0043] When the pallet mechanism moves and stabilizes at the workstation along with the circulating conveyor, the connecting rod moves under the action of the robotic arm, causing the top pallet to move to one side of the bottom pallet, exposing the top of the bottom pallet. Under the push of the first pneumatic rod, the bottom of the insert plate is inserted between multiple partitions to limit the parts. The spacing between the multiple insert plates can meet the clamping space required by the fixture. Then the insert plate moves down, and under the action of the torsion spring, it drives the top pallet to return to its position. The insert plate then moves up again and inserts into the top pallet to limit the parts, and then clamps the parts in the top pallet. In this way, the purpose of assembling multiple parts in a single operation can be achieved, increasing the single conveying capacity of the pallet and greatly reducing the operating frequency of the conveyor mechanism, thereby saving costs. At the same time, the automatic limiting function attached to the pallet can also reduce the difficulty of material sorting and further improve the feeding efficiency.

[0044] During transport, a complete loop is formed by the first and second conveying slide rails, as well as the first and second switching slide rails located at both ends. After the pallet mechanism is loaded onto the first conveying slide rail, it moves to the first switching slide rail and establishes a connection with the second conveying slide rail by moving along the second screw slide rail. This completes the movement of the pallet mechanism to the second conveying slide rail. The second conveying slide rail then connects with multiple reciprocating slide rails through the second switching slide rail. At this time, the length of the first screw slide rail can be extended to set up more reciprocating slide rails, thereby creating more workstations. The transfer of the pallet mechanism and the transport of the empty pallet mechanism to the first conveying slide rail can all be carried out through the second switching slide rail. By adjusting the moving speed of the first screw slide rail and the loading speed of the feeder, sequential feeding of multiple workstations can be achieved, further improving the working efficiency during fingerprint module production.

[0045] After the pallet mechanism moves to the workstation, the robotic arm joints straighten, and the first pneumatic rod drives the L-shaped connecting rod to move, causing the slider to move synchronously in the first and second slide grooves. This causes the L-shaped bracket to engage with the inclined groove. Then, through the continuous operation of the first pneumatic rod, the L-shaped bracket pulls the connecting rod to move the top pallet. With this structure, the space required for the translation structure can be saved while ensuring translation stability, thereby reducing the distance between adjacent reciprocating slide rails and reducing the overall equipment's footprint requirements.

[0046] When the above-mentioned automatic pallet feeding device is used, it feeds materials along the circulating conveyor mechanism through the support shell with top pallet and bottom pallet, realizing the reciprocating circulation of pallets on the base, reducing equipment costs. It can also receive materials through the top pallet and bottom pallet respectively, increasing the single carrying capacity of materials while reducing the floor space, and greatly improving the feeding efficiency.

[0047] Furthermore, by retracting the first air rod, it drives the L-shaped support to rotate. With the cooperation of the inclined groove and the L-shaped support, the pull rod moves around the axis, enabling the top tray to move from directly above the bottom tray to one side. This facilitates the picking up of materials in the bottom tray, reduces the equipment's requirements for operating space, and saves space resources.

[0048] Furthermore, by having the top and bottom pallets cooperate with the feeding chute, the material transport capacity can be increased during a single feeding process. The second air rod drives the bottom plate to move upward, allowing the upper and lower stops of the insert plate to be embedded into the top and bottom pallets, thereby dividing the internal space of the top and bottom pallets into several material units. This facilitates subsequent gripping by the robotic arm, improving material transport efficiency, enhancing material positioning accuracy, reducing the risk of misoperation, and ultimately improving overall production efficiency.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic pallet feeding device, comprising: The base (1) is characterized in that: a circulating conveying mechanism (2) is provided on the top of the base (1), and multiple tray mechanisms (3) are movably provided on the circulating conveying mechanism (2), and a lifting mechanism that cooperates with the tray mechanism (3) is provided on multiple sides of the circulating conveying mechanism (2); The pallet mechanism includes a top pallet (301), a bottom pallet (305), and a supporting base shell (311). The supporting base shell (311) is slidably connected to the circulating conveying mechanism (2) via a slide block (312). The bottom pallet (305) is located between the top pallet (301) and the supporting base shell (311). A supporting cylinder (304) with a pivot shaft (316) internally rotatably connected is provided on the side wall of the bottom pallet (305). Both ends of the pivot shaft (316) pass through the supporting cylinder (304) and are fixedly connected to one end of a connecting rod (303). The other end of the connecting rod (303) is fixedly connected to the side wall of the top pallet (301). A torsion spring (317) is provided on the outer wall of the pivot shaft (316), and a groove (302) is provided on the outer wall of one of the connecting rods (303). The lifting mechanism includes: a support (608), and a support plate (606) with a first groove (607) fixedly installed on the top of the support (608). A first air rod (604) is provided on the side wall of the support plate (606). A slider (605) is slidably connected inside the first groove (607). One end of an L-shaped connecting rod (611) is provided with a second groove (610) that is slidably connected to the slider (605), and the other end is connected to the movable end of the first air rod (604). The corner of the L-shaped connecting rod (611) is connected to the support plate (608). The plates (606) are rotatably connected. A mechanical arm (603) is provided on the side of the support plate (606) opposite to the first air rod (604). One end of the mechanical arm (603) is fixedly connected to the slider (605), and the other end is provided with an L-shaped bracket (601) that cooperates with the inclined groove (302). When the first air rod (604) retracts, it can pull the L-shaped bracket (601) to move along the inclined groove (302), so that the connecting rod (303) moves around the axis. A limiting baffle (313) is installed on the side wall of the bottom tray (305). The L-shaped bracket (601) and the robotic arm (603) are connected by a damping bearing seat (602), and the angle between the axis of the limiting baffle (313) and the vertical direction is 30°.

2. The automatic pallet feeding device according to claim 1, characterized in that: Insert plates (306) are equidistantly spaced on the top of a base plate (308).

3. The automatic pallet feeding device according to claim 1, characterized in that: The top tray (301) and bottom tray (305) are each provided with a number of partitions (315) at intervals, and a number of slots (314) are provided along the length of the partitions (315).

4. The automatic pallet feeding device according to claim 3, characterized in that: A base plate (308) with several insert plates (306) mounted on its top is provided inside the supporting base shell (311). The insert plates (306) have a slot (307) in the middle, so that the insert plates (306) form an upper stop (71) and a lower stop (72). The upper stop (71) and the lower stop (72) can be embedded into the slots (314) of the top tray (301) and the bottom tray (305) respectively, thereby dividing the top tray (301) and the bottom tray (305) into several material units. A second air rod (309) is provided between the base plate (308) and the inner wall of the supporting base shell (311).

5. The automatic pallet feeding device according to claim 2, characterized in that: A telescopic limiting rod (310) is provided between the base plate (308) and the supporting bottom shell (311) and on one side of the second gas rod (309).

6. The automatic pallet feeding device according to claim 1, characterized in that: The robotic arm (603) is fixedly connected to a connecting plate (613) with a limiting rod (612). The limiting rod (612) is parallel to the robotic arm (603) and is slidably connected to a limiting plate (609) installed on the side wall of the support plate (606).

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