A tray nailing apparatus

Abstract

The present application relates to tray processing technical field, and discloses a tray nailing equipment, which relates to tray processing technical field.The equipment is provided with a nailing station and two assembly stations, and comprises two tray conveying lines, a jig driving assembly and a nailing device.The tray conveying line comprises a tray jig and a motion control assembly, and the motion control assembly controls the tray jig to have a first path, a turnover path, a turnover return path and a second path.Through the unique turnover path, the tray is automatically turned over in the movement process.The jig driving assembly drives the tray jigs of the two tray conveying lines to move simultaneously, so that they are alternately moved to the nailing station.The present application realizes the automatic turnover of the tray in the conveying process and the double-station alternate nailing, does not need manual turnover of the tray, can effectively reduce the labor intensity of the staff, eliminates the waiting time of the nailing device, and can significantly improve the production efficiency of the tray.

Description

Technical Field

[0001] This invention relates to the field of pallet processing technology, and in particular to a pallet nailing device. Background Technology

[0002] Pallets are an indispensable load-bearing tool in logistics transportation and warehousing, and their production efficiency is directly related to the supply cycle and overall operating costs of the downstream industrial chain.

[0003] Existing pallet production equipment typically consists of two parts: a pallet conveyor line and a nailing robotic arm. Specifically, workers first manually arrange and pre-assemble components such as wooden boards and blocks at the loading end of the pallet conveyor line to form a preliminary pallet structure. Subsequently, the pallet conveyor line transports this preliminary pallet structure to the downstream of the equipment, where the nailing robotic arm automatically nails the pallet at the corresponding nailing station to complete the pallet processing.

[0004] However, for some pallets with more complex structures, multiple planks need to be installed on both the top and bottom sides of the pallet, and both sides need to be nailed in place. During the processing of such pallets, simply fixing the planks on one side is insufficient to meet the structural requirements. Therefore, the pallet must be flipped so that the other side can be fed under the nailing robot arm for further nailing operations.

[0005] Since existing pallet production lines mostly rely on a combination of manual labor and robotic arms, the pallet flipping process often requires manual operation or the use of simple equipment. Manual flipping is tedious and labor-intensive.

[0006] Meanwhile, the pallet flipping process requires a conveyor line to transport the pallet to a specific workstation, after which the pallet stops moving. Only after the pallet stops can it be flipped, which is done manually or with simple equipment. This introduces additional time consumption, lengthens the entire production cycle, and makes it difficult to match the high-speed rhythm of automated nailing stations. As a result, the overall work efficiency is low and cannot meet the needs of modern factories for efficient and continuous production. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a pallet nailing device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0008] The solution to the technical problem of this invention is:

[0009] A pallet nailing device, comprising a nailing station and two assembly stations, including:

[0010] Two pallet conveyor lines are provided, and the pallet conveyor lines are used to transport pallets between the nailing station and the assembly station;

[0011] The pallet conveyor line includes:

[0012] A pallet fixture for supporting a pallet;

[0013] A motion control component is used to control the movement of the pallet fixture, such that the movement path of the pallet fixture has a first distance, a flipping outward distance, a flipping return distance, and a second distance.

[0014] The outbound and return trips are located between the first and second trips; during the first, second, and return trips, the pallet fixture translates along the fixture's forward direction.

[0015] In the flipping process, the pallet fixture moves away from the nailing station. The flipping process includes a first flipping segment and a second flipping segment. One end of the pallet fixture is designated as a flipping end, and the other end as a translating end. In the first flipping segment, the translating end moves along the forward direction of the fixture, while the flipping end moves away from the translating end in the vertical direction. In the forward direction of the fixture, the distance between the translating end and the flipping end gradually decreases until the flipping end moves to the intersection of the first flipping segment and the second flipping segment, where the translating end and the flipping end are arranged vertically. In the second flipping segment, the translating end continues to move along the forward direction of the fixture, while the flipping end moves closer to the translating end in the vertical direction, thereby realizing the flipping of the pallet fixture.

[0016] A fixture driving assembly is used to drive the pallet fixtures of the two pallet conveyor lines to move simultaneously, such that one of the pallet fixtures moves closer to the nailing station and the other pallet fixture moves away from the nailing station, so that the pallet fixtures of the two pallet conveyor lines move alternately to the nailing station.

[0017] A nailing device is provided at the nailing station and is used to nail the pallet.

[0018] As a further improvement to the above technical solution,

[0019] The pallet fixture is equipped with control components at both ends in the direction of travel of the fixture;

[0020] The motion control component includes:

[0021] A first control guide rail is provided along the forward direction of the fixture. The first control guide rail is provided with a first straight guide section, a forward flip drive section, a return straight drive section, and a second straight guide section. The two ends of the forward flip drive section and the return straight drive section are respectively connected to the first straight guide section and the second straight guide section. The control component is slidably and rotatably disposed within the first control guide rail.

[0022] The outgoing pallet support bottom abuts against the pallet fixture during the outgoing flip; the outgoing flip drive section is provided with an outgoing flip inlet and an outgoing flip outlet; the outgoing flip inlet is located on the side of the outgoing flip outlet near the nailing station;

[0023] A track selection mechanism is used to control the opening and closing of the outbound flip-in inlet;

[0024] A one-way selection mechanism is provided at the outgoing reversing outlet, which allows the control element to enter the second straight guide section unidirectionally from the outgoing reversing drive section.

[0025] As a further improvement to the above technical solution, the track selection mechanism includes:

[0026] The selection drive is located on the outgoing flip drive section. The selection drive can move perpendicular to the forward direction of the fixture relative to the outgoing flip drive section. After the selection drive comes into contact with the control component, it is pushed away from the first control guide rail by the control component.

[0027] A track selection baffle is disposed at the outbound reversing inlet, and the track selection baffle can be flipped relative to the first control guide rail;

[0028] The selection limiter is disposed at the outgoing flip-in port and is movable with the first control guide rail. The selection drive can extend into or out of the outgoing flip-in port perpendicular to the forward direction of the fixture. After the selection drive extends into the outgoing flip-in port, the upper end of the selection drive abuts against the track selection baffle to limit the track selection baffle.

[0029] The selection linkage is connected to the selection drive and the selection limiter, such that when the selection drive moves away from the first control guide, the selection limiter extends into the outgoing flip-up inlet.

[0030] Selecting a reset element, the selection reset element being used to ensure that the selection limit element always tends to disengage from the outgoing reverse drive segment.

[0031] As a further improvement to the above technical solution, the end of the selection drive near the outgoing flip-in entrance is provided with a drive guide slope. When the selection drive abuts against the control component, the drive guide slope pushes the selection drive away from the first control guide rail.

[0032] As a further improvement to the above technical solution, a first linkage component is provided at the end of the selection drive component that is away from the first control guide rail;

[0033] The selection limiting component is provided with a second linkage component at the end away from the first control guide rail;

[0034] The selection linkage is provided with a hinge shaft in the middle, which can rotate relative to the first control guide rail. The two ends of the selection linkage are respectively provided with linkage connection holes. The linkage connection holes are strip-shaped holes that extend along the length of the selection linkage. The first linkage and the second linkage are respectively rotatably and slidingly connected to the two linkage connection holes.

[0035] As a further improvement to the above technical solution, the one-way selection mechanism includes:

[0036] A one-way selector is disposed at the outbound reversing outlet, and the one-way selector is hinged to the first control guide rail;

[0037] A one-way reset element is used to drive the one-way selector to close the outgoing reverse outlet.

[0038] As a further improvement to the above technical solution, the fixture drive assembly is located on the side of the return straight drive section away from the outgoing flip drive section.

[0039] As a further improvement to the above technical solution, the fixture driving component includes:

[0040] A fixture drive unit, wherein the fixture drive unit is a linear drive device;

[0041] A fixture connector is fixed to the output end of a fixture driver, and the fixture driver drives the fixture connector to move along the fixture's forward direction. The fixture connector has a fixture connecting part, which is movably connected to the tray fixture. When the fixture connecting part moves along the fixture's forward direction, it drives the tray fixture to move along the fixture's forward direction.

[0042] As a further improvement to the above technical solution, the pallet fixture is provided with a drive connector in the middle, and the fixture connection part is provided with a drive connection hole. The drive connection hole is a strip-shaped hole structure and extends in the vertical direction. The drive connector is rotatably and slidably connected to the drive connection hole.

[0043] As a further improvement to the above technical solution, the fixture drive component is an electric linear module.

[0044] The beneficial effects of this invention are: by setting up a motion control component with flipping outward and flipping return, and cooperating with the relative movement of the translation end and the flipping end of the pallet fixture, the automatic flipping of the pallet is realized during the conveying process.

[0045] Furthermore, the design of alternating operation of dual pallet conveyor lines allows one conveyor line to perform nailing operations while another conveyor line is assembling, making full use of the working time of the nailing device and reducing the idle waiting time of the nailing device, thereby effectively improving the factory's production efficiency. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0047] Figure 1 This is a top view of the structure according to an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the structure of the motion control component, tray fixture, etc., according to an embodiment of the present invention;

[0049] Figure 3 This is a structural schematic diagram of the jig drive assembly and the drive connector of the pallet jig according to an embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of the track selection mechanism according to an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of the following positioning fixture according to an embodiment of the present invention;

[0052] Figure 6 This is a cross-sectional structural diagram of the following positioning column, following positioning plate and other components in an embodiment of the present invention.

[0053] In the diagram, 100 is the pallet conveyor line; 101 is the nailing station; 102 is the assembly station; 110 is the pallet fixture; 111 is the drive connector; 112 is the control component; 121 is the first control guide rail; 122 is the first support base; 123 is the outgoing pallet support base; 125 is the second support base; 126 is the track selection mechanism; 127 is the one-way selection mechanism; 128 is the second support drive component; 130 is the fixture drive assembly; 131 is the fixture drive component; 132 is the fixture connector; 134 is the fixture connection hole; 140 is the following positioning assembly; 141 is the following movement drive component; 142 is the following up and down drive component; 143 is the following positioning fixture; and 144 is the positioning base. 145. Seat; 146. Follower positioning post; 147. Follower positioning plate; 148. Positioning plate reset component; 149. Positioning plate drive component; 200. Nail-driving device; 310. First straight guide section; 320. Outward flip drive section; 321. First flip drive section; 322. Second flip drive section; 323. Outward flip inlet; 324. Outward flip outlet; 330. Return straight drive section; 340. Second straight guide section; 410. Selection drive component; 411. Drive guide ramp; 412. First linkage component; 420. Selection restraint component; 421. Second linkage component; 430. Selection linkage component; 431. Linkage connection hole; 440. Track selection baffle. Detailed Implementation

[0054] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0055] Existing technology includes a relatively complex pallet structure with three layers. The top and bottom layers are constructed from multiple wooden planks, designated as the first and second wooden plank layers, respectively. These planks are interlaced to form a grid-like structure. The middle layer is designated as the intermediate block layer, comprising multiple wooden blocks arranged in a matrix. The blocks are positioned to correspond to the overlapping portions of two interlaced wooden planks. When a nailing device is used, fixing nails are driven into the two interlaced wooden planks or into both the two interlaced wooden planks and the wooden blocks.

[0056] Since the pallet has a three-layer structure, in order to ensure the connection quality between the upper and lower layers of wooden boards and the middle wooden block, multiple wooden blocks need to be installed in the jig first during processing. Then, one layer of wooden boards is stacked on top of the wooden blocks in a crisscross pattern. Finally, the assembled pallet is nailed to connect the first layer of wooden boards and the middle layer of wooden blocks.

[0057] After the first nailing is completed, the nailed pallet needs to be flipped over. After the pallet is flipped over, multiple wooden blocks are stacked on the nailed pallet. Then the assembled pallet is nailed a second time to form the finished pallet.

[0058] Reference Figures 1 to 6 This pallet nailing equipment is suitable for pallets that require nailing on both sides. The equipment has a first direction, a second direction, and a third direction, which are orthogonally arranged. Referring to the diagram, the first direction is parallel to the X-axis, the second direction is parallel to the Y-axis, and the third direction is parallel to the Z-axis.

[0059] The pallet nailing equipment has two nailing stations 101 and two assembly stations 102. In this embodiment, the two nailing stations 101 are arranged at intervals along a first direction, and the two assembly stations 102 are symmetrically arranged on both sides of the nailing stations 101.

[0060] The pallet nailing equipment includes: a pallet conveyor line 100 and a nailing device 200.

[0061] The number of pallet conveyor lines 100 is set to two. In this embodiment, both pallet conveyor lines 100 extend along the first direction. In other embodiments, the two pallet conveyor lines 100 may also be configured to extend along the first direction and the second direction respectively. Those skilled in the art can select the extension direction of the two pallet conveyor lines 100 according to actual needs.

[0062] The two ends of the pallet conveyor line 100 are respectively set at the nailing station 101 and the assembly station 102.

[0063] The pallet conveyor line 100 includes: a conveyor frame, a pallet fixture 110, a motion control assembly, a fixture drive assembly 130, and a following positioning assembly 140.

[0064] The conveyor frame is placed on the factory floor.

[0065] The pallet fixture 110 has a square frame structure. In this embodiment, the size of the pallet fixture 110 is fixed for producing pallets of fixed dimensions. In an improved embodiment, an adjustment structure can be added as needed to accommodate pallets of different sizes. The pallet fixture 110 is movably connected to the conveyor frame.

[0066] Specifically, in this embodiment, the pallet fixture 110 has a protruding drive connector 111, which is a cylindrical structure. In other embodiments, the drive connector 111 can also be configured as a roller structure rotatably connected to the pallet fixture 110 to reduce friction between the pallet fixture and other structures. Two drive connectors 111 are provided, respectively located on both sides of the pallet fixture 110 in the second direction.

[0067] Specifically, in this embodiment, the pallet fixture 110 has control members 112 at both ends in the first direction. The control members 112 are cylindrical structures. In other embodiments, the control members 112 can also be configured as roller structures that are rotatably connected to the pallet fixture 110 to reduce friction between the pallet fixture 110 and other structures. Two control members 112 are provided at each end, and the control members 112 at each end are respectively provided on both sides of the pallet fixture 110 in the second direction.

[0068] The length of the drive connector 111 is greater than the length of the control component 112.

[0069] The fixture drive assembly 130 is positioned above the return straight drive section 330.

[0070] Specifically, in this embodiment, the number of fixture drive components 130 is set to two, the two fixture drive components 130 are arranged at intervals along the second direction, and the two fixture drive components 130 are respectively disposed on both sides of the tray fixture 110.

[0071] The fixture drive assembly 130 includes: a fixture drive component 131 and a fixture connector 132.

[0072] The fixture drive component 131 is configured as a linear module. In other embodiments, the fixture drive component 131 may also be configured as other linear drive devices. Those skilled in the art can select the specific driving method and specific structure of the drive component. The driving direction of the fixture drive component 131 is parallel to the first direction.

[0073] Two fixture connectors 132 are provided, and the two fixture connectors 132 are respectively set to correspond to the tray fixtures 110 of the two tray conveyor lines 100. The fixture connectors 132 are fixedly installed at the output end of the fixture drive unit 131. The lower end of the fixture connector 132 is provided with a fixture connection part, and the fixture connection part has a fixture connection hole 134. The fixture connection hole 134 is an elongated hole structure, and the length direction of the fixture connection hole 134 is parallel to the third direction.

[0074] The drive connector 111 passes through the corresponding fixture connection hole 134. The drive connector 111 slides and rotates with the fixture connection hole 134. Through the fixture connection hole 134 and the drive connector 111, when the fixture connector 132 moves in the first direction, it drives the entire tray fixture 110 to move in the first direction. At this time, the fixture forward direction of the tray fixture 110 is the first direction.

[0075] The jig drive assembly 130 is used to drive the pallet jigs 110 of the two pallet conveyor lines 100 to move simultaneously, so that one pallet jig 110 is close to the nailing station 101 and the other pallet jig 110 is away from the nailing station 101, so that the pallet jigs 110 of the two pallet conveyor lines 100 move alternately to the nailing station 101.

[0076] The motion control components are used to control the pallet fixture 110. Two motion control components are symmetrically arranged on both sides of the pallet fixture 110 in the second direction. By setting the number of motion control components to two, in conjunction with the control pieces 112 located on both sides of the pallet fixture 110, the movement of the pallet fixture 110 becomes more stable.

[0077] The motion control component enables the pallet fixture 110 to have a first travel path, a flipping outward travel path, a flipping return travel path, and a second travel path. Specifically, the flipping outward travel path includes a first flipping segment and a second flipping segment.

[0078] Specifically, the motion control components include: a first control guide rail 121, a first support base 122, a destination pallet support base 123, a second support drive component 128, a second support base 125, a track selection mechanism 126, and a one-way selection mechanism 127.

[0079] The first support base 122 is set at the assembly station 102 and is fixedly connected to the conveyor frame.

[0080] One end of the outbound pallet support base 123 is connected to the first pallet support base, and the other end is connected to the second support base 125. The outbound pallet support base 123 is a plate-like structure with multiple arcs.

[0081] The second support base 125 is set at the nailing station 101.

[0082] The second support drive component 128 is fixedly installed on the conveyor frame. The second support drive component 128 is configured as a linear module. The output end of the second support drive component 128 is fixedly connected to the second support base 125. The second support drive component 128 is used to drive the second support base 125 to move along the first direction so that the second support drive component 128 supports the pallet.

[0083] The first support base 122, the outgoing pallet support base 123, and the second support base 125 are respectively used to support components such as wooden blocks before nailing during the first journey, the outgoing flip, and the second journey. After the second support drive member 128 drives the second support base 125 to move closer to the first support base 122, the second support base 125 can support the unnailed pallet or the pallet prepared for secondary nailing during the return flip.

[0084] The swing pallet support base can swing relative to the outgoing pallet support base 123 about an axis parallel to the first direction. During the outgoing flip, the swing pallet support base swings upward to allow the pallet fixture 110 to flip. During the return flip, the swing pallet support base abuts against the pallet fixture 110 to support the pallet.

[0085] The swing support drive is set as a swing motor. The swing support drive is used to drive the swing tray support bottom to swing, so as to avoid obstructing the flipping of the tray fixture 110 when it flips.

[0086] The first control guide rail 121 includes: a first straight guide section 310, a forward flip drive section 320, a return straight drive section 330, and a second straight guide section 340.

[0087] The first straight guide section 310 corresponds to the first path, the outgoing flip drive section 320 corresponds to the flip outgoing path, the returning straight drive section 330 corresponds to the flip returning path, and the second straight guide section 340 corresponds to the second path.

[0088] The first straight guide section 310, the outgoing reverse drive section 320, the returning straight drive section 330, and the second straight guide section 340 are provided with notches for the drive connector 111 to pass through.

[0089] The first straight guide section 310, the return straight drive section 330, and the second straight guide section 340 are all tracks extending along the first direction.

[0090] The outbound flip drive section 320 includes a first flip drive section 321 and a second flip drive section 322. The outbound flip drive section 320 is provided with an outbound flip inlet 323 and an outbound flip outlet 324. The outbound flip inlet 323 is located on the side of the outbound flip outlet 324 near the nailing station 101.

[0091] The first flip drive section 321 corresponds to the first flip segment, and the second flip drive section 322 corresponds to the second flip segment. The first flip drive section 321 is located on the side of the second flip drive section 322 away from the assembly station 102. From the nailing station 101 to the assembly station 102, the first flip drive section 321 gradually descends, and the second flip drive section 322 gradually rises.

[0092] The outbound flip drive section 320 is used to guide one end of the pallet fixture 110 so that one end of the pallet fixture 110 flips relative to the other end.

[0093] In the outward flipping process, the pallet fixture 110 moves away from the nailing station 101. One end of the pallet fixture 110 is designated as the flipping end, and the other end as the translation end. When the control components 112 of the translation end and 112 of the flipping end are still in the second straight guide section 340, the control component 112 of the flipping end is positioned in front of the control component 112 of the translation end. In the first flipping segment, the control component 112 of the translation end enters the return straight drive section 330, and the control component 112 of the flipping end enters the first flipping drive section 321. The pallet fixture 110 moves along the fixture's forward direction, and the flipping end moves away from the translation end in the vertical direction. In the fixture's forward direction, the distance between the translation end and the flipping end gradually shortens. Until the flipping end moves to the intersection of the first flipping segment and the second flipping segment, the translation end and the flipping end are arranged vertically. The pallet fixture 110 moves to the second flipping segment, and the translation end continues to move along the fixture's forward direction, while the flipping end moves closer to the translation end in the vertical direction, thereby realizing the flipping of the pallet fixture 110.

[0094] During the flip-back trip, the pallet fixture 110 approaches the nailing station 101. The control components 112 at both ends of the pallet fixture 110 pass through the first straight guide section 310, the return straight drive section 330, and the second straight guide section 340 in sequence to realize the translation of the pallet fixture 110.

[0095] Specifically, the diameter of the drive connector 111 is smaller than the width of the first straight guide section 310, the outgoing reverse drive section 320, the return straight drive section 330, and the second straight guide section 340, so that the width of the notch is smaller than the width of the track, thereby preventing the control component 112 from accidentally leaving the track.

[0096] The track selection mechanism 126 is used to control the opening and closing of the outbound reversing inlet 323.

[0097] Specifically, the track selection mechanism 126 includes: a selection drive 410, a selection limit 420, a track selection baffle 440, a selection linkage 430, and a selection reset 430 (the selection reset 430 is not shown in the figure).

[0098] The selection drive member 410 is disposed in the outgoing flip drive section 320. The selection drive member 410 can move relative to the outgoing flip drive section 320 in a second direction, so that the selection drive member 410 can enter or leave the outgoing flip drive section 320. When the control member 112 enters the outgoing flip drive section 320, the end of the control member 112 abuts against the selection drive member 410. After the selection drive member 410 abuts against the control member 112, it is pushed away from the first control guide rail 121 by the control member 112.

[0099] Specifically, the selector drive member 410 is provided with a drive guide slope 411 at one end near the outgoing flip inlet 323. When the selector drive member 410 abuts against the control member 112, the drive guide slope 411 pushes the selector drive member 410 away from the first control guide rail 121 in the second direction.

[0100] Specifically, a first linkage member 412 is provided at the end of the drive member 410 that is away from the first control guide rail 121. The first linkage member 412 is a cylindrical protrusion structure.

[0101] The selection limiter 420 is set at the outgoing flip inlet 323. The selection limiter 420 is movable with the first control guide rail 121. The selection drive 410 can extend into or out of the outgoing flip inlet 323 perpendicular to the jig's forward direction.

[0102] The end of the selection limiter 420 away from the first control guide rail 121 is provided with a second linkage member 421, which is configured as a cylindrical protrusion structure.

[0103] A track selection baffle 440 is disposed at the outbound reversing inlet 323. The track selection baffle 440 is hinged to the conveyor frame and can be flipped relative to the first control guide rail 121. When the track selection baffle 440 flips downward, the outbound reversing inlet 323 opens. A baffle reset component (not shown in the figure) is provided between the track selection baffle 440 and the conveyor frame. The baffle reset component is used to ensure that the track selection baffle 440 always has an upward flipping tendency, so that the track selection baffle 440 can automatically reset.

[0104] The selection linkage 430 connects the selection drive 410 and the selection limiter 420 so that when the selection drive 410 moves away from the first control rail 121, the selection limiter 420 extends into the outward flip inlet 323. The distance between the selection linkage 430 and the first control rail 121 is greater than the maximum distance between the drive connector 111 and the first control rail 121, so as to avoid the selection linkage 430 interfering with the movement of the drive connector 111.

[0105] The selection linkage 430 has a hinge shaft in the middle, which is hinged to the conveyor frame, so that the selection linkage 430 can rotate relative to the first control guide rail 121. The upper and lower ends of the selection linkage 430 are respectively provided with linkage connection holes 431. The linkage connection holes 431 are strip-shaped holes that extend along the length of the selection linkage 430. The first linkage 412 and the second linkage 421 are respectively rotatably and slidably connected to the two linkage connection holes 431.

[0106] The selection reset element is located between the selection limit element 420 and the conveyor frame. The selection reset element is used to drive the selection limit element 420 so that the selection limit element 420 is disengaged from the outgoing reverse drive section 320.

[0107] When the control unit 112 moves the selection drive unit 410 away from the first control guide rail 121, the selection linkage unit 430 causes the selection restriction unit 420 to enter the outgoing flip drive section 320. The selection restriction unit 420 abuts against the lower end of the track selection baffle 440 to restrict the track selection baffle 440, so as to prevent the two control units 112 at both ends of the pallet fixture 110 from entering the outgoing flip drive section 320 at the same time, thereby ensuring that the flipping step of the pallet fixture 110 can operate normally.

[0108] A one-way selection mechanism 127 is provided at the outgoing reversing outlet 324. The one-way selection mechanism 127 causes the control element 112 to enter the second straight guide section 340 in one direction from the outgoing reversing drive section 320.

[0109] Specifically, the one-way selection mechanism 127 includes: a one-way selection element and a one-way reset element (the one-way reset element is not shown in the figure).

[0110] The one-way selection component is a plate-shaped structure. The one-way selection component is located at the outbound flip-out outlet 324 and is hinged to the first control guide rail 121.

[0111] One-way reset element, used to drive one-way selector to close outgoing flip outlet 324

[0112] Follow-up positioning component 140 is used to limit the planks and blocks of an unnailed pallet, thereby preventing the planks and blocks from shifting during transport and ensuring the quality of pallet processing.

[0113] Specifically, in this embodiment, the following positioning component 140 includes: a following movement drive 141, a following up and down drive 142, and a following positioning fixture 143.

[0114] The following motion drive 141 is fixedly installed on the conveyor frame. In this embodiment, the following motion drive 141 is set as a linear module.

[0115] The following up-down drive component 142 is fixedly installed at the output end of the following movement drive component 141. The following up-down drive component 142 is a linear cylinder. In other embodiments, the following up-down drive component 142 can also be set as a linear motor or other conventional linear drive device. Those skilled in the art can select the specific drive method of the following up-down drive component 142 according to actual needs.

[0116] The following positioning fixture 143 includes: a positioning base 144 and a following positioning column 145.

[0117] The positioning base 144 is fixedly installed on the output end of the following up and down drive component 142.

[0118] The number of follower positioning posts 145 is set to multiple, and the multiple follower positioning posts 145 are fixedly installed below the positioning base 144. The cross-section of the follower positioning post 145 is square or rectangular, and the follower positioning post 145 is used to limit the position of the wooden board.

[0119] The following components are installed at the lower end of the positioning column 145: a positioning plate 146, a positioning plate reset component 147, and a positioning plate drive component 148.

[0120] The number of follower positioning plates 146 is set to two. The follower positioning plates 146 are movably connected to the follower positioning posts 145. The follower positioning plates 146 can extend or retract into the follower positioning posts 145. The movement directions of the two follower positioning plates 146 are parallel to the first direction and the second direction, respectively.

[0121] The follower positioning plate 146 is located inside the follower positioning column 145, and one end of it is provided with a first positioning drive slope.

[0122] The positioning plate reset member 147 ensures that the following positioning plate 146 always tends to retract into the following positioning post 145. In this embodiment, the positioning plate reset member 147 is a cylindrical spring. In other embodiments, the positioning plate reset member 147 may be configured as other elastic structures.

[0123] The positioning plate drive component 148 is movably connected to the following positioning post 145. The positioning plate drive component 148 can move relative to the following positioning post 145 in a third direction. The positioning plate drive component 148 is provided with multiple second positioning drive inclined surfaces. The second positioning drive inclined surfaces are arranged one-to-one with the following positioning plate 146. The second positioning drive inclined surfaces abut against the first positioning drive inclined surfaces. When the positioning plate drive component 148 moves upward relative to the following positioning post 145, the second positioning drive inclined surfaces push the first positioning drive inclined surfaces to move outward toward the following positioning post 145, so that the following positioning plate 146 automatically extends out of the following positioning post 145 and the following positioning plate 146 limits the position of the wooden block.

[0124] A nailing device 200 is disposed at the nailing station 101, and the nailing device 200 is used to nail the pallet. In this embodiment, the nailing device 200 is a conventional configuration of a multi-axis robotic arm and a pneumatic nailing machine, and the specific structure of the nailing device 200 will not be described in detail here.

[0125] The working process of this plan is as follows:

[0126] Initial setup and loading: Pallet fixture 110 of one pallet conveyor line 100 is located at assembly station 102, and pallet fixture 110 of the other pallet conveyor line 100 is located at nailing station 101. Operators or other processing equipment place the required wooden boards, blocks, and other components for the pallet in a specific arrangement on the pallet fixture 110 at assembly station 102 to complete the initial assembly of the pallet that requires nailing.

[0127] After the nailed pallet is assembled, the following positioning component 140 descends, and the following positioning column 145 limits the wooden board. When the following positioning component 140 descends to a certain height, the positioning plate drive component 148 is limited by the first support bottom 122. The positioning plate drive component 148 moves upward relative to the following positioning column 145. Through the second positioning drive inclined surface and the first positioning drive inclined surface, the following positioning plate 146 extends out and limits the wooden block to prevent the wooden block from shifting during the transportation process.

[0128] The fixture drive assembly 130 is activated, driving the pallet fixtures 110 of the two pallet conveyor lines 100 to move synchronously along their respective fixture forward directions (one pallet fixture 110 moves closer to the nailing station 101 along the first direction, and the other pallet fixture 110 moves away from the nailing station 101 along the first direction).

[0129] One of the pallet fixtures 110 (hereinafter referred to as fixture A) carries the pre-assembled pallet components to the nailing station 101, while the other pallet fixture 110 (hereinafter referred to as fixture B) is empty or carries the finished products away from the nailing station 101 and goes to its corresponding assembly station 102 for loading.

[0130] Fixture A moves sequentially along the first direction through the first path, the flip-back path, and the second path to the nailing station 101, where the nailing station 101 then nails the assembled tray on fixture A.

[0131] After fixture A completes one nailing operation, fixture drive assembly 130 reverses the drive, and fixture A begins to return towards assembly station 102.

[0132] At the beginning of the return, the control components 112 at both ends of fixture A are located in the second straight guide section 340. When the control component 112 at its flipping end moves to the outgoing flipping inlet 323, due to the gravity of the pallet fixture 110, the control component 112 enters the outgoing flipping drive section 320. During the process of the control component 112 entering the outgoing flipping drive section 320, it will push the track selection baffle 440 to flip downward.

[0133] After the control unit 112 moves to the designated position in the outward flip drive section 320, the track selection baffle 440 flips upward and resets. The control unit 112 then pushes the selection drive unit 410 of the track selection mechanism 126 to move away from the first control guide rail 121. The selection drive unit 410 drives the selection limiter 420 to extend into the first control guide rail 121 through the selection linkage unit 430. The lower end of the selection limiter 420 abuts against the track selection baffle 440, thereby limiting the track selection baffle 440 to prevent the control unit 112 at the translation end from entering the outward flip drive section 320. Instead, it is guided to the return straight drive section 330 to ensure that the control unit 112 at the translation end can continue to slide along the first direction.

[0134] At this time, the translation end of fixture A translates within the return straight drive section 330, while the flipping end moves within the outgoing flipping drive section 320. In the first flipping segment, the translation end continues to advance along the first direction, while the flipping end moves downward and away from the translation end in the vertical direction, and the distance between the two in the direction of fixture advance shortens.

[0135] When the flipping end moves to the intersection of the first flipping segment and the second flipping segment, the pallet fixture 110 is in a vertical state, with the translation end and the flipping end arranged vertically.

[0136] After entering the second flipping section, the translation end continues to advance, while the flipping end begins to move upward and approach the translation end in the vertical direction until the control element 112 of the flipping end passes through the outgoing flipping exit 324. Under the action of the one-way selection mechanism 127, the control element 112 of the flipping end enters the second straight guide section 340 from the outgoing flipping drive section 320, causing the pallet fixture 110 and the pallet after one nailing operation to complete a 180-degree flip. At this time, the side of the pallet that was originally facing down becomes facing up.

[0137] After the flipping is completed, the control component 112 at the translation end and the control component 112 at the flipping end of fixture A both move within the second straight guide section 340 and finally reach the assembly station 102.

[0138] As fixture A moves away from the nailing station 101, fixture B moves towards the nailing station 101 to transport the pre-assembled pallet.

[0139] After fixture A arrives at assembly station 102, workers or other equipment place wooden boards on the pallet that has been nailed in one go to complete the pallet assembly.

[0140] Then, fixture A is moved along the first direction to the nailing station 101, where the nailing station 101 performs secondary nailing on the pallet assembled on fixture A to produce the finished pallet.

[0141] Then, jig A returns to assembly station 102. After jig A returns to assembly station 102, the operator or other equipment takes out the finished pallet and then immediately loads the wooden blocks and boards.

[0142] The process of fixture B is the same as that of fixture A, and fixture B and fixture A operate alternately.

[0143] In this way, the two pallet fixtures 110 alternately perform the processes of assembly, first nailing, flipping, and second nailing, forming a continuous and efficient production cycle, thereby improving the factory's production efficiency.

[0144] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A pallet nailing device, characterized in that: It has a nailing station and two assembly stations, including: Two pallet conveyor lines are provided, and the pallet conveyor lines are used to transport pallets between the nailing station and the assembly station; The pallet conveyor line includes: A pallet fixture for supporting a pallet; A motion control component is used to control the movement of the pallet fixture, such that the movement path of the pallet fixture has a first distance, a flipping outward distance, a flipping return distance, and a second distance. The outbound and return trips are located between the first and second trips; during the first, second, and return trips, the pallet fixture translates along the fixture's forward direction. In the flipping process, the pallet fixture moves away from the nailing station. The flipping process includes a first flipping segment and a second flipping segment. One end of the pallet fixture is designated as a flipping end, and the other end as a translating end. In the first flipping segment, the translating end moves along the forward direction of the fixture, while the flipping end moves away from the translating end in the vertical direction. In the forward direction of the fixture, the distance between the translating end and the flipping end gradually decreases until the flipping end moves to the intersection of the first flipping segment and the second flipping segment, where the translating end and the flipping end are arranged vertically. In the second flipping segment, the translating end continues to move along the forward direction of the fixture, while the flipping end moves closer to the translating end in the vertical direction, thereby realizing the flipping of the pallet fixture. A fixture driving assembly is used to drive the pallet fixtures of the two pallet conveyor lines to move simultaneously, such that one of the pallet fixtures moves closer to the nailing station and the other pallet fixture moves away from the nailing station, so that the pallet fixtures of the two pallet conveyor lines move alternately to the nailing station. A nailing device is provided at the nailing station and is used to nail the pallet. The pallet fixture is equipped with control components at both ends in the direction of travel of the fixture; The motion control component includes: A first control guide rail is provided along the forward direction of the fixture. The first control guide rail is provided with a first straight guide section, a forward flip drive section, a return straight drive section, and a second straight guide section. The two ends of the forward flip drive section and the return straight drive section are respectively connected to the first straight guide section and the second straight guide section. The control component is slidably and rotatably disposed within the first control guide rail. The outgoing pallet support bottom abuts against the pallet fixture during the outgoing flip; the outgoing flip drive section is provided with an outgoing flip inlet and an outgoing flip outlet; the outgoing flip inlet is located on the side of the outgoing flip outlet near the nailing station; The swing pallet support base can swing relative to the outgoing pallet support base, and during the flip-back trip, the swing pallet support base abuts against the pallet fixture; A swing support drive component, wherein the swing support drive component is used to drive the swing tray support bottom to swing; A track selection mechanism is used to control the opening and closing of the outbound flip-in inlet; A one-way selection mechanism is provided at the outgoing reversing outlet, which allows the control element to enter the second straight guide section unidirectionally from the outgoing reversing drive section. The track selection mechanism includes: The selection drive is located on the outgoing flip drive section. The selection drive can move perpendicular to the forward direction of the fixture relative to the outgoing flip drive section. After the selection drive comes into contact with the control component, it is pushed away from the first control guide rail by the control component. A track selection baffle is disposed at the outbound reversing inlet, and the track selection baffle can be flipped relative to the first control guide rail; The selection limiter is disposed at the outgoing flip-in port and is movably connected to the first control guide rail. The selection limiter can extend into or out of the outgoing flip-in port perpendicular to the forward direction of the fixture. After the selection limiter extends into the outgoing flip-in port, the upper end of the selection limiter abuts against the track selection baffle to limit the track selection baffle. The selection linkage is connected to the selection drive and the selection limiter, such that when the selection drive moves away from the first control guide, the selection limiter extends into the outgoing flip-up inlet. Selecting a reset element, the selection reset element being used to ensure that the selection limit element always tends to disengage from the outgoing reverse drive segment.

2. The pallet nailing device according to claim 1, characterized in that: The selection drive component has a drive guide slope at one end near the outgoing flip-in entrance. When the selection drive component comes into contact with the control component, the drive guide slope pushes the selection drive component away from the first control guide rail.

3. The pallet nailing device according to claim 1, characterized in that: The selection drive component is provided with a first linkage component at the end away from the first control guide rail; The selection limiting component is provided with a second linkage component at the end away from the first control guide rail; The selection linkage is provided with a hinge shaft in the middle, which can rotate relative to the first control guide rail. The two ends of the selection linkage are respectively provided with linkage connection holes. The linkage connection holes are strip-shaped holes that extend along the length of the selection linkage. The first linkage and the second linkage are respectively rotatably and slidingly connected to the two linkage connection holes.

4. The pallet nailing device according to claim 1, characterized in that: The one-way selection mechanism includes: A one-way selector is disposed at the outbound reversing outlet, and the one-way selector is hinged to the first control guide rail; A one-way reset element is used to drive the one-way selector to close the outgoing reverse outlet.

5. The pallet nailing device according to claim 1, characterized in that: The fixture drive assembly is located on the side of the return straight drive section away from the outgoing flip drive section.

6. The pallet nailing device according to claim 1, characterized in that: The fixture driving component includes: A fixture drive unit, wherein the fixture drive unit is a linear drive device; A fixture connector is fixed to the output end of a fixture driver, and the fixture driver drives the fixture connector to move along the fixture's forward direction. The fixture connector has a fixture connecting part, which is movably connected to the tray fixture. When the fixture connecting part moves along the fixture's forward direction, it drives the tray fixture to move along the fixture's forward direction.

7. A pallet nailing device according to claim 6, characterized in that: The tray fixture has a drive connector in the middle and a drive connection hole in the fixture connection part. The drive connection hole is a strip-shaped hole structure and extends in the vertical direction. The drive connector is rotatably and slidably connected to the drive connection hole.

8. A pallet nailing device according to claim 6, characterized in that: The fixture drive is an electric linear module.

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