Automatic tray conveying device

Abstract

The utility model relates to an automatic tray conveying device. The device comprises a supporting base, a tray conveying assembly, a tray storage bin and an automatic tray discharging assembly. The tray conveying assembly comprises two conveying frames arranged on the supporting base side by side and conveying belt structures arranged on the conveying frames. The tray storage bin comprises a plurality of storage plates which are arranged on the two conveying frames in a protruding mode in the vertical direction, and a storage cavity is defined by the multiple storage plates and the two conveying frames; the automatic tray discharging assembly comprises a tray lifting supporting mechanism arranged on the supporting base and tray lifting limiting mechanisms arranged on the conveying frames, and the tray lifting supporting mechanism is located between the two conveying frames, located below the storage cavity and used for limiting trays stored in the storage cavity from the two sides. The automatic feeding device can solve the problems that when trays loaded with inferior-quality products are fed in a manual mode, the feeding efficiency is low, and the overall efficiency of scrapping treatment on the inferior-quality products can be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to an automatic tray conveying device. Background Art

[0002] During the production process of flexible circuit boards, various defective products (such as assembly defectives, flexible board defectives, etc.) will be produced. In order to prevent various defective products from entering the market for use, these defective products need to be scrapped. Moreover, when scrapping various defective products, some defective products need to be carried on pallets, and the pallets need to be moved to the scrapping equipment, and then the defective products in the pallets are taken away for scrapping. In traditional technology, pallets loaded with defective products are usually loaded manually, and the loading efficiency is low, which will affect the overall efficiency of scrapping defective products. Utility Model Content

[0003] The utility model provides an automatic pallet conveying device, which can solve the technical problem that the traditional technology uses a manual method to load pallets loaded with defective products, the loading efficiency is low, and the overall efficiency of scrapping the defective products is affected.

[0004] In order to solve the above technical problems, the utility model provides an automatic pallet conveying device, comprising:

[0005] Support base;

[0006] The pallet conveying assembly comprises two conveying frames arranged side by side on the supporting base in a horizontal direction, and a conveying belt structure arranged on each of the conveying frames;

[0007] The pallet storage bin comprises a plurality of storage boards vertically protruding from the two conveying racks, wherein a storage cavity is formed between the plurality of storage boards and the two conveying racks; and

[0008] The automatic pallet unloading assembly comprises a pallet lifting support mechanism provided on the support base, and a pallet lifting limit mechanism provided on each of the conveying racks, wherein the pallet lifting support mechanism is located between the two conveying racks and below the storage cavity, and the two pallet lifting limit mechanisms are used to limit the pallets stored in the storage cavity from both sides;

[0009] Among them, the pallet lifting and limiting mechanism includes a limiting bottom plate arranged on the conveying frame, a telescopic limiting support plate structure arranged on the limiting bottom plate, and a lifting and limiting support plate structure arranged on the telescopic limiting support plate structure. The telescopic limiting support plate structures on both sides are used to approach or move away from each other to limit or release the pallets between them, and the lifting and limiting support plate structures on both sides are used to sort and limit the pallets between them from both sides.

[0010] Optionally, the telescopic limit support plate structure includes at least one horizontal telescopic driving member arranged on the limit bottom plate, and a telescopic limit plate connected to the horizontal telescopic driving member. The telescopic limit plates on both sides are relatively arranged and are used to move relatively close to or away from each other under the drive of the horizontal telescopic driving member to limit or release the pallet from the bottom.

[0011] Optionally, the telescopic limit support plate structure includes a plurality of horizontal telescopic driving members arranged side by side in the middle of the limit bottom plate, and a plurality of telescopic guide rails arranged side by side on the limit bottom plate, and the telescopic limit plate is slidably arranged on the plurality of telescopic guide rails and connected to the plurality of horizontal telescopic driving members.

[0012] Optionally, the telescopic limit plate includes a main limit plate connected to the horizontal telescopic drive member, and a first limit protrusion plate protruding from the side of the main limit plate, the thickness of the first limit protrusion plate is smaller than the thickness of the main limit plate, the first limit protrusion plate is used to limit the bottom of the pallet, and the main limit plate is used to limit the side of the pallet.

[0013] Optionally, the lifting and limiting support plate structure includes a plurality of lifting and limiting driving members arranged on the telescopic limiting plate, and a lifting and limiting block connected to each of the lifting and limiting driving members, wherein the lifting and limiting block is used to limit the bottom edge of the tray or to arrange and limit the side of the tray;

[0014] The telescopic limiting plate is provided with a lifting opening, and the lifting limiting block is located at the lifting opening.

[0015] Optionally, the lifting limit block includes a main limit block connected to the lifting limit drive component, and a second limit protrusion protruding from the side of the main limit block, and the second limit protrusion is used to limit the bottom edge of the tray or to arrange and limit the side of the tray.

[0016] Optionally, the pallet lifting support mechanism includes a lifting support driving member vertically arranged on the support base, a lifting support frame arranged on the lifting support driving member, and a lifting support plate arranged on the top of the lifting support frame, and the lifting support plate is located below the storage cavity and between the two conveying frames.

[0017] Optionally, the conveyor frame has a feeding end and a discharging end;

[0018] The pallet storage bin includes a storage plate respectively arranged at the discharge ends of the two conveying racks, and the two storage plates are both configured as L-shaped plates and are arranged opposite to each other.

[0019] Optionally, the tray conveying assembly includes a discharge detection structure provided at a discharge end of the conveying frame, and a tray discharge limiting structure corresponding to the discharge detection structure;

[0020] The tray discharging limiting structure includes a tray discharging limiting driving member arranged on the conveying frame, and a tray discharging limiting plate connected to the tray discharging limiting driving member.

[0021] Optionally, the support base includes a base plate, and two base support frames arranged on both sides of the base plate, wherein one of the base support frames is slidably arranged on the base plate, and the other base support frame is fixedly arranged on the base plate;

[0022] The two conveying racks are arranged on the two base support racks in a one-to-one correspondence, and the tray lifting support mechanism is arranged on the base plate.

[0023] The beneficial effects brought by the technical solution provided by the utility model include:

[0024] The pallets loaded with defective products can be transported by the conveyor belt structure on the two conveyor racks on the support base. The multiple storage plates on the two conveyor racks and the two conveyor racks form a storage cavity, which can be used to stack and store multiple pallets loaded with defective products. Moreover, the pallet in the storage cavity can be lifted and moved by the pallet lifting support mechanism of the pallet automatic unloading assembly, so that the pallet in the storage cavity can be lowered to the conveyor belt structure on the two conveyor racks, so that the conveyor belt structure can transport the pallet to the scrapping equipment; and when the pallet in the storage cavity is lifted and moved by the pallet lifting support mechanism, the pallet lifting limit mechanism on the two conveyor racks can be used to limit the pallet, so that the stacked multiple pallets fall one by one onto the conveyor belt structure, so that the pallets can be transported one by one.

[0025] Specifically, when it is necessary to unload materials from the pallet at the bottom of the storage cavity, the pallet lifting support mechanism can be raised to the bottom of the storage cavity to support the pallet at the bottom of the storage cavity, and at the same time, the telescopic limiting support plate structure of the pallet lifting limit mechanism on the two conveying racks can be retracted to release the limiting of the telescopic limiting support plate structure on the bottom of the storage cavity, so that the pallet at the bottom of the storage cavity can fall onto the pallet lifting support mechanism; then, the pallet falling thereon can be lowered by the pallet lifting support mechanism to make the pallet fall onto the conveyor belt structure on the two conveying racks, at which time the telescopic limiting support plate structure can be retracted to release the limiting of the telescopic limiting support plate structure on the bottom of the storage cavity, so that the pallet at the bottom of the storage cavity can fall onto the pallet lifting support mechanism. The retractable limiting pallet structure is extended to re-limit the pallet above the fallen pallet, so that only one pallet at the bottom of the storage cavity falls onto the conveyor belt structure. The falling pallet can also be lifted and lowered by the lifting limiting pallet structure on the retractable limiting pallet structure, and can be squeezed and sorted from both sides so that the fallen pallet is located in the middle position so that both sides of the pallet can be supported by the conveyor belt structures on both sides. At the same time, the lifting limiting pallet structure can also be used to limit the pallet that falls onto the conveyor belt structure from the side, so that the conveyor belt structure can transport the pallet stably and reliably.

[0026] Through the automatic pallet conveying device provided by the utility model, not only can a plurality of pallets loaded with defective products be stacked and stored, but also the plurality of stacked and stored pallets can be automatically unloaded and loaded, and the limit position of the pallets can be automatically adjusted during the unloading process, so that the pallets can be unloaded and loaded one by one, which not only improves the loading efficiency, but also makes the unloading process stable, and can improve the overall efficiency of scrapping defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The three-dimensional structure diagram of the automatic pallet conveying device according to the embodiment of the utility model Figure 1 ;

[0029] Figure 2 The three-dimensional structure diagram of the automatic pallet conveying device according to the embodiment of the utility model Figure 2 ;

[0030] Figure 3 The three-dimensional structure diagram of the automatic pallet conveying device according to the embodiment of the utility model Figure 3 ;

[0031] Figure 4The three-dimensional structure diagram of the automatic pallet conveying device according to the embodiment of the utility model Figure 4 ;

[0032] Figure 5 The three-dimensional structure diagram of the pallet lifting and limiting mechanism of the automatic pallet conveying device according to the embodiment of the utility model Figure 1 ;

[0033] Figure 6 The three-dimensional structure diagram of the pallet lifting and limiting mechanism of the automatic pallet conveying device according to the embodiment of the utility model Figure 2 ;

[0034] Figure 7 The three-dimensional structure diagram of the pallet lifting support mechanism of the automatic pallet conveying device according to the embodiment of the utility model Figure 1 ;

[0035] Figure 8 The three-dimensional structure diagram of the pallet lifting support mechanism of the automatic pallet conveying device according to the embodiment of the utility model Figure 2 .

[0036] In the figure: 10, pallet; 100, support base; 110, base plate; 120, base support frame; 200, pallet conveying assembly; 210, conveying frame; 220, conveyor belt structure; 230, discharge detection structure; 240, pallet discharge limit structure; 242, pallet discharge limit driving member; 244, pallet discharge limit plate; 300, pallet storage bin; 310, storage board; 400, pallet automatic unloading assembly; 402, pallet lifting limit mechanism; 404, pallet lifting support mechanism; 410, limit bottom plate; 42 0. Telescopic limit support plate structure; 422. Horizontal telescopic drive member; 424. Telescopic limit plate; 4242. Main limit plate; 4244. First limit convex plate; 4246. Lifting port; 426. Telescopic guide rail; 430. Lifting limit support plate structure; 432. Lifting limit drive member; 434. Lifting limit block; 4342. Main limit block; 4344. Second limit convex plate; 440. Lifting support drive member; 450. Lifting support frame; 452. Lifting support bottom plate; 454. Lifting support rod; 460. Lifting support plate. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figures 1 to 4 As shown, the utility model proposes an automatic pallet conveying device, comprising a support base 100, a pallet conveying assembly 200 arranged on the support base 100, a pallet storage bin 300 arranged on the pallet conveying assembly 200, and a pallet automatic unloading assembly 400 arranged on the support base 100 and the pallet conveying assembly 200. The pallet storage bin 300 can be used to store a plurality of pallets 10 loaded with defective products that are stacked, and the automatic pallet unloading assembly 400 can be used to unload the pallets 10 stored in the pallet storage bin 300 from the bottom one by one onto the pallet conveying assembly 200, and can also be used to perform bottom limit support on the pallets 10 stored in the pallet storage bin 300, and automatically convey and unload the unloaded pallets 10 through the pallet conveying assembly 200.

[0039] Specifically, the pallet conveying assembly 200 may include two conveying racks 210 arranged side by side on the support base 100 in the horizontal direction, and a conveyor belt structure 220 arranged on each conveying rack 210. The pallet 10 loaded with defective products can be conveyed by the conveyor belt structure 220 on the two conveying racks 210 on the support base 100. Moreover, the pallet storage warehouse 300 may include a plurality of storage plates 310 protruding vertically on the two conveying racks 210, and a storage cavity is formed between the plurality of storage plates 310 and the two conveying racks 210. The storage cavity is formed between the plurality of storage plates 310 on the two conveying racks 210 and the two conveying racks 210, which can be used to stack and store a plurality of pallets 10 loaded with defective products.

[0040] Moreover, the automatic pallet unloading assembly 400 may include a pallet lifting support mechanism 404 arranged on the support base 100, and a pallet lifting limit mechanism 402 arranged on each conveying rack 210. The pallet lifting support mechanism 404 is located between the two conveying racks 210 and below the storage cavity. The two pallet lifting limit mechanisms 402 are used to limit the pallets 10 stored in the storage cavity from both sides. The pallet 10 in the storage cavity can be lifted and moved by the pallet lifting support mechanism 404 of the automatic pallet unloading assembly 400, so that the pallet 10 in the storage cavity can be lowered to the conveyor belt structure 220 on the two conveyor racks 210, so that the conveyor belt structure 220 can transport the pallet 10 to the scrapping equipment; moreover, when the pallet 10 in the storage cavity is lifted and moved by the pallet lifting support mechanism 404, the pallet 10 can be limited by the pallet lifting limit mechanism 402 on the two conveyor racks 210, so that the stacked multiple pallets 10 can fall one by one onto the conveyor belt structure 220, so that the pallets 10 can be transported one by one.

[0041] Moreover, the pallet lifting and limiting mechanism 402 may include a limiting bottom plate 410 arranged on the conveying frame 210, a telescopic limiting support plate structure 420 arranged on the limiting bottom plate 410, and a lifting and limiting support plate structure 430 arranged on the telescopic limiting support plate structure 420. The telescopic limiting support plate structures 420 on both sides are used to move closer to or away from each other to limit or release the pallets 10 between them, and the lifting and limiting support plate structures 430 on both sides are used to arrange and limit the pallets 10 between them from both sides.

[0042] When it is necessary to unload the pallet 10 at the bottom of the storage cavity, the pallet lifting support mechanism 404 can be raised to the bottom of the storage cavity to support the pallet 10 at the bottom of the storage cavity, and at the same time, the telescopic limiting support plate structure 420 of the pallet lifting limit mechanism 402 on the two conveying racks 210 can be contracted to release the limiting of the pallet 10 at the bottom of the storage cavity, so that the pallet 10 at the bottom of the storage cavity can fall onto the pallet lifting support mechanism 404; then, the pallet falling on it can be moved downward by the pallet lifting support mechanism 404, so that the pallet falls onto the conveyor belt structure 220 on the two conveying racks 210, and at this time, the telescopic limiting support plate structure 420 of the pallet lifting limit mechanism 402 on the two conveying racks 210 can be contracted. The pallet structure 420 extends out to re-limit the pallet above the fallen pallet 10, so that only one pallet 10 at the bottom of the storage cavity falls onto the conveyor belt structure 220, and the pallet 10 can be lifted and lowered by the lifting and limiting pallet structure 430 on the telescopic limiting pallet structure 420, and the fallen pallet 10 can be squeezed and adjusted from both sides, so that the fallen pallet 10 is located in the middle position so that both sides of the pallet 10 can be supported by the conveyor belt structures 220 on both sides; at the same time, the lifting and limiting pallet structure 430 can also be used to limit the pallet 10 that falls onto the conveyor belt structure 220 from the side, so that the conveyor belt structure 220 can transport the pallet 10 stably and reliably.

[0043] Through the automatic pallet conveying device provided by the utility model, not only can a plurality of pallets 10 loaded with defective products be stacked and stored, but also the plurality of stacked and stored pallets 10 can be automatically unloaded and loaded, and the limit position of the pallets 10 can be automatically adjusted during the unloading process, and the pallets 10 can be unloaded and loaded one by one, which can not only improve the loading efficiency, but also make the unloading process stable, and can improve the overall efficiency of scrapping of defective products.

[0044] In addition, if Figure 3 to Figure 4As shown, the support base 100 may include a base plate 110, and two base support frames 120 disposed on both sides of the base plate 110, wherein one base support frame 120 may be slidably disposed on the base plate 110, and the other base support frame 120 may be fixedly disposed on the base plate 110, two conveyor frames 210 are disposed on the two base support frames 120 in a one-to-one correspondence, and a pallet lifting support mechanism 404 may be disposed on the base plate 110. By fixing one of the two base support frames 120 of the support base 100 and slidably disposing the other, the spacing between the two base support frames 120 may be adjusted, thereby adjusting the positions of the conveyor frames 210, the conveyor belt structure 220, and the pallet lifting limit mechanism 402 on the two base support frames 120, and adapting to pallets 10 of different sizes.

[0045] Specifically, at least one bottom plate slide rail may be provided on the base plate 110, and a base support frame 120 may be slidably mounted on the bottom plate slide rail. The bottom plate slide rail may be extended along the width direction between the two base support frames 120, so that the base support frame 120 may be close to or away from the other base support frame 120 when sliding. Further, the base support frame 120 slidably mounted on the bottom plate slide rail may be fixed by connecting bolts. Moreover, a bottom plate slide rail may be provided on each side of the base plate 110, and the two sides of the base support frame 120 may be slidably mounted on the two bottom plate slide rails in a one-to-one correspondence. In addition, both base support frames 120 may be slidably mounted on the bottom plate slide rails.

[0046] Moreover, the base support frame 120 can be slidably adjusted manually, that is, an adjustment screw can be set between the two base support frames 120, and the adjustment screw can be set parallel to the bottom plate slide rail. One end of the adjustment screw can be fixed to the fixed base support frame 120, and the other end of the adjustment screw can be threadedly connected to the sliding base support frame 120, and the sliding base support frame 120 can be driven to reciprocate along the bottom plate slide rail by rotating the adjustment screw. In addition, a driving motor can be set to drive the adjustment screw to rotate to achieve automatic adjustment of the base support frame 120. In addition, by setting the automatic pallet conveying device on the base plate 110, the modular setting of the automatic pallet conveying device can be achieved, which is convenient for its overall installation and setting.

[0047] In addition, if Figures 1 to 4 As shown, the two conveying frames 210 of the pallet conveying assembly 200 may have a feed end and a discharge end, the conveyor belt structure 220 extends from the feed end to the discharge end, and the pallet storage bin 300 is located above the feed end and the discharge end of the conveyor frame 210 and the conveyor belt structure 220. The pallets 10 in the pallet storage bin 300 are dropped to the feed end of the conveyor belt structure 220, and the conveyor belt structure 220 can convey the pallets 10 to the discharge end and move them to the scrapping equipment for processing.

[0048] Moreover, in this embodiment, the pallet storage bin 300 may include a storage board 310 respectively disposed at the discharge ends of the two conveying racks 210, and the two storage boards 310 are both L-shaped boards and disposed opposite to each other. That is, the storage board 310 is only disposed at the discharge end of the conveying rack 210, and there is no need to dispose the storage board 310 at the feed end of the conveying rack 210. Not only can the storage boards 310 on the discharge ends of the two conveying racks 210 be used to enclose and form a storage cavity to store a plurality of stacked pallets 10, but also the feed end of the conveying rack 210 can be free of obstructions (such as the storage board 310), so that the stacked plurality of pallets 10 can be transferred from the feed end of the conveying rack 210 to the storage cavity of the pallet storage bin 300. Moreover, by disposing the storage board 310 as a plate body with an L-shaped cross section, a triangular barrier structure can be formed at the corner position of the storage cavity, and the positioning of the pallets 10 is simple and reliable. In addition, reinforcing ribs may be provided on the outer side of the storage board 310 to strengthen the storage board 310 and prevent deformation and damage when multiple pallets 10 are stacked.

[0049] In addition, the conveyor belt structure 220 of the pallet conveyor assembly 200 may include a pallet conveyor belt disposed on the inner side of the conveyor frame 210, and a conveyor belt driving structure connected to the pallet conveyor belt, and the pallet conveyor belts on the two conveyor frames 210 are arranged opposite to each other. Moreover, the pallet conveyor belt is located below the pallet lifting and limiting mechanism 402, and the limiting bottom plate 410 of the pallet lifting and limiting mechanism 402 is disposed on the top of the conveyor frame 210, so that when the telescopic limiting support plate structure 420 on the limiting bottom plate 410 releases the restriction on the pallet 10 at the bottom of the storage cavity, the pallet 10 can fall onto the pallet conveyor belt, and the pallet 10 on the pallet conveyor belt can be transported to the scrapping equipment under the drive of the conveyor belt driving structure. Moreover, the conveyor belt driving structure can be set as a motor driving structure, and the pallet conveyor belt can be set as a synchronous conveyor belt structure.

[0050] In addition, if Figures 3 to 6As shown, the telescopic limiting support plate structure 420 of the automatic tray unloading assembly 400 may include at least one horizontal telescopic driving member 422 disposed on the limiting bottom plate 410, and a telescopic limiting plate 424 connected to the horizontal telescopic driving member 422, and the telescopic limiting plates 424 on both sides are arranged relatively to each other and are used to be relatively close to or away from each other under the drive of the horizontal telescopic driving member 422 to limit or release the tray from the bottom. The telescopic limiting plates 424 can be driven to move horizontally and telescopically by the horizontal telescopic driving member 422 on the limiting bottom plate 410 disposed on the conveying frame 210, so that the telescopic limiting plates 424 of the telescopic limiting support plate structure 420 on both sides can be telescopically moved closer or away. Moreover, when the telescopic limiting plates 424 of the telescopic limiting support plate structure 420 on both sides are extended and approached, the pallet 10 at the bottom of the storage cavity can be lifted and supported from the bottom of both sides, and the pallet 10 can be limited in the storage cavity; and when the telescopic limiting plates 424 of the telescopic limiting support plate structure 420 on both sides are retracted and moved away, the lifting and supporting of the bottom of the pallet 10 on both sides at the bottom of the storage cavity can be released, and combined with the pallet lifting and supporting mechanism 404 below the bottom of the storage cavity, the pallet 10 at the bottom of the storage cavity can be moved down to the conveyor belt structure 220 on the inner side of the conveying frame 210.

[0051] Further, the telescopic limit plate structure 420 may include a plurality of horizontal telescopic driving members 422 arranged side by side in the middle of the limit bottom plate 410, and a plurality of telescopic guide rails 426 arranged side by side on the limit bottom plate 410, and the telescopic limit plate 424 is slidably arranged on the plurality of telescopic guide rails 426 and connected to the plurality of horizontal telescopic driving members 422. That is, a plurality of horizontal telescopic driving members 422 may be arranged on the limit base at the same time to telescopically drive the telescopic limit plate 424, so that the movement of the telescopic limit plate 424 is more stable, the bearing capacity is also stronger, and the support and limit of the pallet 10 in the storage cavity is also more stable. Moreover, in this embodiment, two or three horizontal telescopic driving members 422 may be arranged side by side on the limit bottom plate 410. In addition, by arranging a plurality of telescopic guide rails 426 on the limit bottom plate 410, not only the telescopic limit plate 424 can be supported, but also the telescopic movement of the telescopic limit plate 424 on the limit bottom plate 410 is facilitated. Moreover, in this embodiment, a telescopic guide rail 426 may be provided on both sides of the limiting bottom plate 410 to support and guide the telescopic limiting plate 424 from both sides. In addition, one or more telescopic guide rails 426 may be provided on both sides and the middle of the limiting bottom plate 410. In addition, the horizontal telescopic driving member 422 may be provided as a cylinder driving structure.

[0052] Moreover, the telescopic limiting plate 424 may include a main limiting plate 4242 connected to the horizontal telescopic driving member 422, and a first limiting convex plate 4244 protruding from the side of the main limiting plate 4242, the thickness of the first limiting convex plate 4244 is less than the thickness of the main limiting plate 4242, the first limiting convex plate 4244 is used to limit the bottom of the pallet 10, and the main limiting plate 4242 is used to limit the side of the pallet 10. That is, when the pallet 10 in the storage cavity is limited from the side by the telescopic limiting plate 424, the top surface of the first limiting convex plate 4244 can be used to support the bottom of the edge of the pallet 10, and the side of the main limiting plate 4242 can be used to limit (i.e. clamp) the side of the edge of the pallet 10, so that the limiting support for the pallet 10 is stable and reliable.

[0053] In addition, the lifting and limiting support plate structure 430 may include a plurality of lifting and limiting driving members 432 disposed on the telescopic limiting plate 424, and a lifting and limiting block 434 connected to each lifting and limiting driving member 432, and the lifting and limiting block 434 is used to limit the bottom edge of the pallet 10 or to arrange and limit the side of the pallet 10. The lifting and limiting driving member 432 can drive the lifting and limiting block 434 to move up and down, and the lifting and limiting block 434 can cooperate with the telescopic limiting plate 424, and can not only limit the pallet 10 in the storage cavity from the side together with the telescopic limiting plate 424, but also arrange and limit the side of the pallet 10 lowered from the storage cavity by itself, so that the pallet 10 falls evenly onto the conveyor belt structure 220 on both sides. In addition, the lifting and limiting driving member 432 can also be set as a cylinder drive structure.

[0054] Moreover, the telescopic limiting plate 424 is provided with a lifting opening 4246, and the lifting limiting block 434 can be located at the lifting opening 4246. Specifically, a limiting plate notch can be provided on the inner side of the telescopic limiting plate 424, so that the limiting plate notch forms a lifting opening 4246 for the lifting limiting block 434 of the lifting limiting support plate structure 430 to move and pass through, so that the lifting limiting block 434 can be aligned with the telescopic limiting plate 424 (the sides of the two facing the tray 10 can be aligned, and the top and bottom surfaces of the two can also be aligned respectively), or the two can be misaligned.

[0055] Furthermore, the lifting limit block 434 may include a main limit block 4342 connected to the lifting limit driving member 432, and a second limit convex plate 4344 protruding from the side of the main limit block 4342, and the second limit convex plate 4344 may be used to limit the bottom edge of the pallet 10, or to arrange and limit the side of the pallet 10. Similarly, when the pallet 10 in the storage cavity is limited from the side by the telescopic limit plate 424 and the lifting limit block 434, the top surface of the second limit convex plate 4344 may be used to support and hold the bottom of the edge of the pallet 10, and the side of the main limit block 4342 may be used to limit (i.e., clamp) the side of the edge of the pallet 10, so that the limiting support of the pallet is stable and reliable. In addition, when the pallet 10 in the storage cavity falls onto the conveyor belt structure 220, the lifting limit block 434 can be driven to lift and move through the lifting limit drive component 432, so that the second limiting protrusion 4344 of the lifting limit block 434 squeezes and adjusts the side of the pallet, thereby allowing the position of the pallet 10 between the lifting limit support plate structures 430 on both sides to be adjusted. At the same time, the second limiting protrusion 4344 of the lifting limit block 434 can also be used to limit the pallet 10 located on the conveyor belt structure 220 from the side, so that the pallet 10 can move stably during the transportation process.

[0056] In addition, if Figure 3 to Figure 4 ,as well as Figures 7 and 8 As shown, the pallet lifting support mechanism 404 may include a lifting support driving member 440 vertically arranged on the base plate 110 of the support base 100, a lifting support frame 450 arranged on the lifting support driving member 440, and a lifting support plate 460 arranged on the top of the lifting support frame 450, and the lifting support plate 460 is located below the storage cavity and between the two conveying frames 210. The lifting support driving member 440 can drive the lifting support plate 460 on the lifting support frame 450 to move up and down, so that the lifting support plate 460 can be raised to the storage cavity to hold up the pallet 10, and after the pallet lifting limit mechanism 402 releases the limit of the pallet 10 at the bottom of the storage cavity, a pallet 10 at the bottom of the storage cavity can be lowered to a preset position so that it falls on the conveyor belt structure 220, and then the pallet lifting limit mechanism 402 is allowed to limit the pallet 10 at the bottom of the storage cavity again, so that the lifting support plate 460 can be reset, and then the pallet 10 located thereon can be conveyed by the conveyor belt structure 220.

[0057] Moreover, the lifting support frame 450 may include a lifting support base plate 452 disposed on the lifting support driving member 440, a plurality of lifting support rods 454 disposed on the lifting support base plate 452, and a lifting support plate 460 may be disposed on the top of the plurality of lifting support rods 454, and may stably support the tray 10 from the bottom thereof. In addition, the lifting support driving member 440 may be a cylinder driving structure or a linear motor driving structure. Moreover, the plurality of lifting support rods 454 may all be guide support rods movably and vertically disposed on the lifting support base plate 452, and the driving end of the lifting support driving member 440 is directly connected to the bottom surface of the lifting support plate 460.

[0058] In addition, if Figure 3 to Figure 4 As shown, the pallet conveying assembly 200 may include a discharge detection structure 230 disposed at the discharge end of the conveying frame 210, and a pallet discharge limiting structure 240 corresponding to the discharge detection structure 230. The discharge detection structure 230 may detect the position of the pallet 10 on the conveyor belt structure 220 to determine whether the pallet 10 has moved to the discharge end; when the pallet moves to the discharge end of the conveying frame 210, the pallet discharge limiting structure 240 may release the blocking limit on the pallet 10, so that the pallet 10 can be output to the outside of the discharge end to leave the bottom of the storage cavity. Moreover, the pallet discharge limiting structure 240 may include a pallet discharge limiting driving member 242 disposed on the conveying frame 210, and a pallet discharge limiting plate 244 connected to the pallet discharge limiting driving member 242. The tray discharge limit driving member 242 can drive the tray discharge limit plate 244 to block at the discharge end of the conveyor frame 210, or leave the discharge end of the conveyor frame 210, and can block or release the conveyor belt structure 220 from conveying the tray 10 at the discharge end.

[0059] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0060] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.

Claims

1. An automatic pallet conveying device, characterized in that: include: Support base; The pallet conveying assembly comprises two conveying frames arranged side by side on the supporting base in a horizontal direction, and a conveying belt structure arranged on each of the conveying frames; The pallet storage bin comprises a plurality of storage boards vertically protruding from the two conveying racks, wherein a storage cavity is formed between the plurality of storage boards and the two conveying racks; and The automatic pallet unloading assembly comprises a pallet lifting support mechanism provided on the support base, and a pallet lifting limit mechanism provided on each of the conveying racks, wherein the pallet lifting support mechanism is located between the two conveying racks and below the storage cavity, and the two pallet lifting limit mechanisms are used to limit the pallets stored in the storage cavity from both sides; Among them, the pallet lifting and limiting mechanism includes a limiting bottom plate arranged on the conveying frame, a telescopic limiting support plate structure arranged on the limiting bottom plate, and a lifting and limiting support plate structure arranged on the telescopic limiting support plate structure. The telescopic limiting support plate structures on both sides are used to approach or move away from each other to limit or release the pallets between them, and the lifting and limiting support plate structures on both sides are used to sort and limit the pallets between them from both sides.

2. The automatic pallet conveying device according to claim 1, characterized in that: The telescopic limiting support plate structure includes at least one horizontal telescopic driving member arranged on the limiting bottom plate, and a telescopic limiting plate connected to the horizontal telescopic driving member. The telescopic limiting plates on both sides are arranged relatively to each other and are used to move relatively close to or away from each other under the drive of the horizontal telescopic driving member to limit or release the pallet from the bottom.

3. The automatic pallet conveying device according to claim 2, characterized in that: The telescopic limit plate structure includes a plurality of horizontal telescopic driving members arranged side by side in the middle of the limit bottom plate, and a plurality of telescopic guide rails arranged side by side on the limit bottom plate. The telescopic limit plate is slidably arranged on the plurality of telescopic guide rails and connected to the plurality of horizontal telescopic driving members.

4. The automatic pallet conveying device according to claim 2, characterized in that: The telescopic limit plate includes a main limit plate connected to the horizontal telescopic drive member, and a first limit convex plate protruding from the side of the main limit plate, the thickness of the first limit convex plate is smaller than the thickness of the main limit plate, the first limit convex plate is used to limit the bottom of the pallet, and the main limit plate is used to limit the side of the pallet.

5. The automatic pallet conveying device according to claim 2, characterized in that: The lifting and limiting support plate structure includes a plurality of lifting and limiting driving members arranged on the telescopic limiting plate, and a lifting and limiting block connected to each of the lifting and limiting driving members, wherein the lifting and limiting block is used to limit the bottom edge of the tray or to arrange and limit the side of the tray; The telescopic limiting plate is provided with a lifting opening, and the lifting limiting block is located at the lifting opening.

6. The automatic pallet conveying device according to claim 5, characterized in that: The lifting limit block includes a main limit block connected to the lifting limit driving member, and a second limit convex plate protruding from the side of the main limit block, wherein the second limit convex plate is used to limit the bottom edge of the tray or to arrange and limit the side of the tray.

7. The automatic pallet conveying device according to any one of claims 1 to 6, characterized in that: The pallet lifting support mechanism includes a lifting support driving member vertically arranged on the support base, a lifting support frame arranged on the lifting support driving member, and a lifting support plate arranged on the top of the lifting support frame, and the lifting support plate is located below the storage cavity and between the two conveying frames.

8. The automatic pallet conveying device according to any one of claims 1 to 6, characterized in that: The conveyor frame has a feeding end and a discharging end; The pallet storage bin includes a storage plate respectively arranged at the discharge ends of the two conveying racks, and the two storage plates are both configured as L-shaped plates and are arranged opposite to each other.

9. The automatic pallet conveying device according to claim 8, characterized in that: The tray conveying assembly comprises a material discharging detection structure provided at the material discharging end of the conveying frame, and a tray material discharging limiting structure corresponding to the material discharging detection structure; The tray discharging limiting structure includes a tray discharging limiting driving member arranged on the conveying frame, and a tray discharging limiting plate connected to the tray discharging limiting driving member.

10. The automatic pallet conveying device according to any one of claims 1 to 6, characterized in that: The support base includes a base plate, and two base support frames arranged on both sides of the base plate, wherein one of the base support frames is slidably arranged on the base plate, and the other base support frame is fixedly arranged on the base plate; The two conveying racks are arranged on the two base support racks in a one-to-one correspondence, and the tray lifting support mechanism is arranged on the base plate.

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