Turnover mechanism for wood tray production

Abstract

The turnover mechanism for wood tray production comprises a first conveying assembly, a second conveying assembly and a supporting frame, the supporting frame is located between the first conveying assembly and the second conveying assembly, a driving plate is rotationally connected to the supporting frame, and turnover frames are arranged on the two sides of the driving plate; the first conveying assembly comprises a first conveying frame and a plurality of first conveying rollers, a supporting plate is fixedly connected to the first conveying frame, a wheel groove is formed in the supporting plate, a cam is rotationally connected into the wheel groove, the cross section of the cam is oval, the cam is rotationally connected with the supporting plate through a connecting shaft, and a rod groove is formed in the upper portion of the supporting plate in the vertical direction; limiting rods are arranged in the rod grooves and movably connected with the supporting plates, and when the ends of the limiting rods abut against the protruding parts of the cams, the ends, away from the cams, of the limiting rods are located above the first conveying rollers. According to the wood pallet turnover mechanism, the situation that the next wood pallet collides with the turnover mechanism in the wood pallet turnover process is avoided, meanwhile, after one-time turnover is completed, the next wood pallet can be conveyed in time, and efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of turning devices, and in particular to a turning mechanism for producing wooden pallets. Background Art

[0002] Wooden pallets are pallets made of natural wood. They are the most widely used pallets. Pallets are horizontal platform devices used for packaging, stacking, handling and transportation of goods and products as unit loads, which are convenient for loading and unloading, and handling unit materials and small quantities of materials.

[0003] Related technology can refer to the patent with announcement number CN219585233U, which discloses a wooden pallet flipping mechanism, including a base, a motor, a bidirectional screw mechanism, a fixed block, two connecting blocks, two guide mechanisms, two connecting rods and two support plates. The motor is fixedly connected to one side of the base, the bidirectional screw mechanism is rotatably connected in the base, the fixed block is fixedly connected in the base, the lower ends of the two connecting blocks are respectively arranged on the inner bottom of the base through two guide mechanisms, the lower ends of the two connecting rods are respectively hinged to the upper ends of the two connecting blocks, the opposite ends of the two support plates are respectively hinged to the two sides of the upper end of the fixed block, and the upper ends of the two connecting rods are respectively hinged to the lower surfaces of the two support plates.

[0004] With regard to the above-mentioned related technologies, wooden pallets are flipped on the production line through the automatic flipping mechanism of wooden pallets. During the flipping process of a wooden pallet, if the conveying interval time between wooden pallets is short, the next wooden pallet is likely to collide with the flipping mechanism. If the conveying interval time between wooden pallets is long, the flipping time of the wooden pallet is extended, thereby reducing production efficiency. Summary of the invention

[0005] In order to prevent the next wooden pallet from colliding with the flipping mechanism during the flipping process of the wooden pallet, and to ensure that the next wooden pallet can be delivered in time after completing a flipping to improve efficiency, the present application provides a flipping mechanism for wooden pallet production.

[0006] The present application provides a turning mechanism for producing wooden pallets, which adopts the following technical solution: The cam is rotatably connected to the support plate through a connecting shaft, and the connecting shaft is provided with a limit rod, and the limit rod is movably connected to the support plate through a connecting shaft.

[0007] By adopting the above technical solution, the wooden pallet is transported to the turning frame through the first conveying assembly, at which time the side with a shorter diameter of the cam abuts against the limit rod, and the end of the limit rod is located below the top of the first conveying roller, the driving motor is started, and the driving plate is rotated. After the driving plate rotates 180 degrees, the turning frame equipped with the wooden pallet moves to the side of the second conveying assembly, and the turned wooden pallet is conveyed through the second conveying assembly. During the rotation of the driving plate, the connecting shaft and the driving plate are rotated synchronously, and the cam is rotated to move the limit rod upward, and the upper end of the limit rod is located above the first conveying roller to block the wooden pallet conveyed on the first conveying assembly. When the driving plate rotates 90 degrees, the limit rod is at the highest height. After the driving plate rotates 180 degrees, the limit rod completes a lifting movement, and the limit rod moves to below the top of the first conveying roller, so that the next wooden pallet is conveyed along the first conveying assembly.

[0008] Optionally, the output shaft of the driving motor is connected to the connecting shaft via a connecting belt.

[0009] By adopting the above technical solution, when the driving motor rotates the driving plate, the connecting shaft is driven to rotate through the connecting belt, so that the driving plate and the connecting shaft rotate synchronously.

[0010] Optionally, the support plate is provided with spring grooves located on both sides of the rod groove, the limiting rod is provided with a spring plate located in the spring groove, the spring groove is provided with an elastic spring located above the spring plate, and when the elastic spring is in a natural state, the spring plate is located at the bottom of the spring groove.

[0011] By adopting the above technical solution, when the cam rotates and the diameter of the cam portion in contact with the limit rod gradually increases, the limit rod gradually moves upward, the elastic spring is compressed, and the compressed elastic spring applies a downward elastic force to the spring plate; when the cam rotates and the diameter of the cam portion in contact with the limit rod gradually decreases, the compressed elastic spring releases the elastic force, pushing the elastic plate downward, causing the limit rod to move downward, so that the end of the limit rod is always in contact with the side wall of the cam, thereby improving stability.

[0012] Optionally, the flip frame includes a limit plate and a flip plate, the flip plate is fixedly mounted on the driving plate, the limit plate close to the first conveying component side is located above the flip plate, and the limit plate close to the second conveying component side is located below the flip plate.

[0013] By adopting the above technical solution, the wooden pallet passing through the first conveying assembly is supported by the turning frame, the turning plate is located below the wooden pallet, and the limiting plate is located above the wooden pallet. When the driving plate rotates, the turning plate and the limiting plate jointly clamp and turn the wooden pallet.

[0014] Optionally, a moving rod is provided on one side of the two limit plates close to each other, the moving rod is inserted into the driving plate and is slidably connected to the driving plate, and a moving rack is provided on one side of the two moving rods close to each other, a rotating gear is rotatably connected in the driving plate, and the rotating gear is meshed with the two moving racks.

[0015] By adopting the above technical solution, the rotating gear in the driving plate is rotated, and the two moving rods are driven to move by the two moving racks, so that the two limit plates are moved closer to or farther away from each other, and the distance between the limit rod and the flip plate is adjusted. The distance between the limit plate and the flip plate is adjusted according to the specifications of the wooden pallet, thereby improving the stability of the flipping of the wooden pallet.

[0016] Optionally, the rotating gear is rotatably connected to the driving plate via a rotating shaft, a connecting groove is provided at the end of the rotating shaft, the cross-section of the connecting groove is non-circular, a connecting cavity is provided in the rotating shaft, a connecting rod is passed through the driving plate, the connecting rod passes through the connecting cavity, a connecting block matching the connecting groove is provided at the end of the connecting rod, the connecting rod is slidably connected to the rotating shaft, a connecting gear is provided on the connecting rod and is located on the side of the connecting cavity away from the rotating shaft, a rotating plate is rotatably connected in the connecting cavity, a connecting spring is provided in the connecting cavity, both ends of the connecting spring are connected to the connecting gear and the rotating plate, a fixing block matching the connecting gear is fixedly provided on the inner wall of the connecting cavity away from the rotating shaft, and when the connecting spring is in a natural state, the fixing block is located in the tooth gap of the connecting gear.

[0017] By adopting the above technical solution, when the rotating gear needs to be rotated, the connecting rod is moved toward the rotating shaft, the connecting block moves in the connecting groove, the connecting gear moves in the connecting cavity, the connecting gear is separated from the fixed block, the connecting spring is compressed, the connecting rod is rotated, and the rotating shaft is driven to rotate, thereby rotating the rotating gear. After adjusting the position of the limit plate, the connecting rod is loosened, the compressed connecting spring releases the elastic force, pushes the connecting gear to move, and the fixed block is inserted into the tooth gap of the connecting gear to prevent the connecting gear from rotating, thereby preventing the connecting rod and the rotating shaft from rotating, thereby improving the stability of the connection between the limit plate and the driving plate.

[0018] Optionally, rubber pads are provided on both the flip plate and the limit plate.

[0019] By adopting the above technical solution, the rubber pad is elastic and protects the flip plate, the limit plate and the wooden pallet, thereby preventing the flip plate, the limit plate and the wooden pallet from making direct contact.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: During the rotation of the driving plate, the connecting shaft and the driving plate are rotated synchronously, and the cam is rotated to move the limit rod upward, and the upper end of the limit rod is located above the first conveying roller to block the wooden pallet conveyed on the first conveying assembly. When the driving plate rotates 90 degrees, the limit rod is located at the highest height. After the driving plate rotates 180 degrees, the limit rod completes a lifting movement, and the limit rod moves to below the top of the first conveying roller, so that the next wooden pallet is conveyed along the first conveying assembly, so as to avoid the next wooden pallet colliding with the turning mechanism during the turning process of the wooden pallet. At the same time, after completing a turning, the next wooden pallet can be conveyed in time, thereby improving efficiency. The rotating gear in the driving plate is rotated, and the two moving rods are driven to move through the two moving racks to make the two limit plates approach or move away from each other, and the distance between the limit rod and the flip plate is adjusted. The distance between the limit plate and the flip plate is adjusted according to the specifications of the wooden pallet to improve the stability of the flipping of the wooden pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the overall structure of a tipping mechanism for producing wooden pallets.

[0022] Figure 2 It is a schematic diagram for showing the connection relationship between the rotating gear and the driving plate in the embodiment of the present application.

[0023] Figure 3 It is a schematic diagram for showing the connection relationship between the connecting rod and the driving plate in the embodiment of the present application.

[0024] Figure 4 yes Figure 2Enlarged schematic diagram of part A.

[0025] Figure 5 It is a schematic diagram for showing the connection relationship between the limit rod and the support plate in the embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. first conveying assembly; 11. first conveying frame; 12. first conveying roller; 2. supporting frame; 21. driving motor; 3. driving plate; 31. connecting cavity; 32. rotating plate; 33. connecting spring; 34. fixing block; 4. flip frame; 41. flip plate; 42. limiting plate; 43. moving rod; 431. moving rack; 44. rotating gear; 45. rubber pad; 5. rotating shaft; 51. connecting groove; 6. connecting rod; 61. connecting gear; 7. supporting plate; 71. wheel groove; 72. cam; 73. connecting shaft; 74. connecting belt; 75. rod groove; 76. spring groove; 77. elastic spring; 8. limiting rod; 81. spring plate. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0028] The embodiment of the present application discloses a turning mechanism for producing wooden pallets.

[0029] Reference Figure 1 A turning mechanism for producing wooden pallets comprises a first conveying assembly 1, a second conveying assembly and a support frame 2, the support frame 2 is located between the first conveying assembly 1 and the second conveying assembly, a driving plate 3 is rotatably connected to the support frame 2, a driving motor 21 is installed on the support frame 2, an output shaft of the driving motor 21 is coaxially and fixedly connected to the driving plate 3, turning frames 4 are arranged on both sides of the driving plate 3, the first conveying assembly 1 comprises a first conveying frame 11 and a plurality of first conveying rollers 12, the second conveying assembly comprises a second conveying frame and a plurality of second conveying rollers, the first conveying roller 12 is rotated, the wooden pallet is conveyed to the turning frame 4 through the first conveying assembly 1, the driving plate 3 is rotated, the wooden pallet is turned over, and then the second conveying roller is rotated to convey the turned wooden pallet.

[0030] Reference Figure 1 and Figure 2The flip frame 4 includes a limit plate 42 and a flip plate 41. The flip plate 41 is fixedly mounted on the driving plate 3. The limit plate 42 near the first conveying assembly 1 is located above the flip plate 41, and the limit plate 42 near the second conveying assembly is located below the flip plate 41. The length of the limit plate 42 and the flip plate 41 are less than the length of the wooden pallet. The wooden pallet passing through the first conveying assembly 1 is transported to the flip frame 4. A part of the wooden pallet is located between the limit plate 42 and the flip plate 41, and the other part is located on the first conveying assembly 1. The flip plate 41 is located below the wooden pallet, and the limit plate 42 is located above the wooden pallet. When the driving plate 3 rotates, the flip plate 41 and the limit plate 42 jointly clamp and flip the wooden pallet. After flipping, a part of the wooden pallet is located on the second conveying assembly, and the other part is located between the flip plate 41 and the limit plate 42. The second conveying roller on the second conveying assembly rotates continuously, and the flipped wooden pallet is transported through the second conveying assembly.

[0031] Reference Figure 2 , a moving rod 43 is provided on the side where the two limit plates 42 are close to each other, the moving rod 43 is inserted into the driving plate 3 and is slidably connected to the driving plate 3, and a moving rack 431 is provided on the side where the two move rods 43 are close to each other, and a rotating gear 44 is rotatably connected in the driving plate 3, and the rotating gear 44 is meshed with the two move racks 431. The rotating gear 44 in the driving plate 3 is rotated, and the two move rods 43 are driven to move through the two move racks 431, so that the two limit plates 42 are close to or away from each other, and the distance between the limit rod 8 and the flip plate 41 is adjusted. The distance between the limit plate 42 and the flip plate 41 is adjusted according to the specifications of the wooden pallet, so as to improve the stability of the flipping of the wooden pallet.

[0032] Reference Figure 2 and Figure 3The rotating gear 44 is rotatably connected to the driving plate 3 through the rotating shaft 5. A connecting groove 51 is provided at the end of the rotating shaft 5. The cross section of the connecting groove 51 is non-circular. A connecting cavity 31 is provided in the rotating shaft 5. A connecting rod 6 is passed through the driving plate 3. The connecting rod 6 passes through the connecting cavity 31. A connecting block matching the connecting groove 51 is provided at the end of the connecting rod 6. The connecting rod 6 is slidably connected to the rotating shaft 5. A connecting gear 61 is provided on the connecting rod 6 and is located on the side of the connecting cavity 31 away from the rotating shaft 5. A rotating plate 32 is rotatably connected in the connecting cavity 31. A connecting spring 33 is provided in the connecting cavity 31. Both ends of the connecting spring 33 are connected to the connecting gear 61 and the rotating plate 32. A fixing block 34 matching the connecting gear 61 is fixedly provided on the inner wall of the connecting cavity 31 on the side away from the rotating shaft 5. When the connecting spring 33 is in a natural state, the fixing block 34 is located in the tooth gap of the connecting gear 61. When it is necessary to rotate the rotating gear 44, the connecting rod 6 is moved toward the rotating shaft 5, the connecting block moves in the connecting groove 51, the connecting gear 61 moves in the connecting cavity 31, the connecting gear 61 is separated from the fixed block 34, the connecting spring 33 is compressed, the connecting rod 6 is rotated, and the rotating shaft 5 is driven to rotate, thereby rotating the rotating gear 44. After adjusting the position of the limit plate 42, the connecting rod 6 is loosened, and the compressed connecting spring 33 releases the elastic force, pushing the connecting gear 61 to move, so that the fixed block 34 is inserted into the tooth gap of the connecting gear 61, preventing the connecting gear 61 from rotating, thereby preventing the connecting rod 6 and the rotating shaft 5 from rotating, thereby improving the stability of the connection between the limit plate 42 and the driving plate 3.

[0033] Reference Figure 2 , rubber pads 45 are provided on the flip plate 41 and the limit plate 42. The rubber pads 45 are elastic and protect the flip plate 41, the limit plate 42 and the wooden pallet to prevent the flip plate 41, the limit plate 42 from directly contacting the wooden pallet.

[0034] Reference Figure 2 , Figure 4 and Figure 5The first conveying frame 11 is fixedly connected with a support plate 7 located below the first conveying roller 12. A wheel groove 71 is provided on the support plate 7. A cam 72 is rotatably connected in the wheel groove 71. The cross section of the cam 72 is elliptical. The cam 72 is rotatably connected to the support plate 7 through a connecting shaft 73. The output shaft of the driving motor 21 is connected to the connecting shaft 73 through a connecting belt 74. When the driving plate 3 rotates, the connecting shaft 73 is driven to rotate by the connecting belt 74, so that the driving plate 3 and the connecting shaft 73 rotate synchronously. A rod groove 75 is provided above the support plate 7 in the vertical direction. A limit rod 8 is provided in the rod groove 75. The limit rod 8 is movably connected to the support plate 7. When the end of the limit rod 8 abuts against the raised part of the cam 72, the end of the limit rod 8 away from the cam 72 is located above the first conveying roller 12. The wooden pallet is transported to the turning frame 4 through the first conveying assembly 1. At this time, the shorter diameter side of the cam 72 abuts against the limit rod 8, and the end of the limit rod 8 is located below the top of the first conveying roller 12, and the driving plate 3 is rotated. After the driving plate 3 rotates 180 degrees, the turning frame 4 equipped with the wooden pallet moves to the side of the second conveying assembly, and the turned wooden pallet is transported through the second conveying assembly. During the rotation of the driving plate 3, the connecting shaft 73 is rotated synchronously with the driving plate 3, and the cam 72 is rotated to move the limit rod 8 upward, and the upper end of the limit rod 8 is located above the first conveying roller 12, blocking the wooden pallet transported on the first conveying assembly 1. When the driving plate 3 rotates 90 degrees, the limit rod 8 is at the highest height. After the driving plate 3 rotates 180 degrees, the limit rod 8 completes a lifting movement, and the limit rod 8 moves to below the top of the first conveying roller 12, so that the next wooden pallet is transported along the first conveying assembly 1.

[0035] The support plate 7 is provided with spring slots 76 located on both sides of the rod slot 75, and the limiting rod 8 is provided with a spring plate 81 located in the spring slot 76. The spring slot 76 is provided with an elastic spring 77 located above the spring plate 81. When the elastic spring 77 is in a natural state, the spring plate 81 is located at the bottom of the spring slot 76. When the cam 72 rotates, the diameter of the cam 72 contacting the limiting rod 8 gradually increases, the limiting rod 8 gradually moves upward, the elastic spring 77 is compressed, and the compressed elastic spring 77 applies a downward elastic force to the spring plate 81. When the cam 72 rotates, the diameter of the cam 72 contacting the limiting rod 8 gradually decreases, and the compressed elastic spring 77 releases the elastic force, pushing the elastic plate downward, so that the limiting rod 8 moves downward, so that the end of the limiting rod 8 always abuts against the side wall of the cam 72, and the stability is improved.

[0036] The implementation principle of a flipping mechanism for wooden pallet production in the embodiment of the present application is as follows: the wooden pallet is transported to the flipping frame 4 after passing through the first conveying assembly 1, a part of the wooden pallet is located between the limit plate 42 and the flipping plate 41, and the other part is located on the first conveying assembly 1, the flipping plate 41 is located below the wooden pallet, and the limit plate 42 is located above the wooden pallet. At this time, the shorter diameter side of the cam 72 abuts against the limit rod 8, and the end of the limit rod 8 is located below the top of the first conveying roller 12; when the driving plate 3 rotates, the flipping plate 41 and the limit plate 42 jointly clamp and flip the wooden pallet, and a part of the flipped wooden pallet is located on the second conveying assembly, and the other part is located between the flipping plate 41 and the limit plate 42. The second conveying roller on the second conveying assembly continues to rotate, and after flipping The wooden pallet is transported through the second conveying assembly; during the rotation of the driving plate 3, the connecting shaft 73 is rotated synchronously with the driving plate 3, and the cam 72 is rotated to move the limit rod 8 upward, and the upper end of the limit rod 8 is located above the first conveying roller 12, blocking the wooden pallet transported on the first conveying assembly 1; when the driving plate 3 rotates ninety degrees, the limit rod 8 is located at the highest height; after the driving plate 3 rotates one hundred and eighty degrees, the limit rod 8 completes a lifting movement, and the limit rod 8 moves to below the top of the first conveying roller 12, so that the next wooden pallet is transported along the first conveying assembly 1, so as to avoid the next wooden pallet colliding with the turning mechanism during the turning process of the wooden pallet. At the same time, after completing a turning, the next wooden pallet can be transported in time to improve efficiency.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A turning mechanism for producing wooden pallets, comprising a first conveying assembly (1), a second conveying assembly and a support frame (2), wherein the support frame (2) is located between the first conveying assembly (1) and the second conveying assembly, and characterized in that: The support frame (2) is rotatably connected to a driving plate (3), a driving motor (21) is mounted on the support frame (2), an output shaft of the driving motor (21) is coaxially and fixedly connected to the driving plate (3), flip frames (4) are arranged on both sides of the driving plate (3), the first conveying assembly (1) comprises a first conveying frame (11) and a plurality of first conveying rollers (12), the first conveying frame (11) is fixedly connected to a supporting plate (7) located below the first conveying rollers (12), the supporting plate (7) is provided with a wheel groove (71), the wheel groove (71) is provided on the supporting plate (7), and the wheel groove (71) is provided on the supporting plate (7). A cam (72) is rotatably connected in the groove (71), the cross section of the cam (72) being elliptical, the cam (72) being rotatably connected to the support plate (7) via a connecting shaft (73), a rod groove (75) being provided above the support plate (7) in a vertical direction, a limiting rod (8) being provided in the rod groove (75), the limiting rod (8) being movably connected to the support plate (7), and when the end of the limiting rod (8) abuts against a raised portion of the cam (72), the end of the limiting rod (8) away from the cam (72) is located above the first conveying roller (12).

2. A turning mechanism for producing wooden pallets according to claim 1, characterized in that: The output shaft of the driving motor (21) and the connecting shaft (73) are connected via a connecting belt (74).

3. The turning mechanism for producing wooden pallets according to claim 1, characterized in that: The support plate (7) is provided with spring grooves (76) located on both sides of the rod groove (75); the limiting rod (8) is provided with a spring plate (81) located in the spring groove (76); an elastic spring (77) located above the spring plate (81) is provided in the spring groove (76); when the elastic spring (77) is in a natural state, the spring plate (81) is located at the bottom of the spring groove (76).

4. The turning mechanism for producing wooden pallets according to claim 1, characterized in that: The turning frame (4) comprises a limit plate (42) and a turning plate (41), wherein the turning plate (41) is fixedly mounted on the driving plate (3), the limit plate (42) on the side close to the first conveying assembly (1) is located above the turning plate (41), and the limit plate (42) on the side close to the second conveying assembly is located below the turning plate (41).

5. The turning mechanism for producing wooden pallets according to claim 4, characterized in that: A moving rod (43) is provided on one side of the two limit plates (42) close to each other. The moving rod (43) is inserted into the driving plate (3) and is slidably connected to the driving plate (3). A moving rack (431) is provided on one side of the two limit plates (42) close to each other. A rotating gear (44) is rotatably connected inside the driving plate (3). The rotating gear (44) is meshed with the two moving racks (431).

6. A turning mechanism for producing wooden pallets according to claim 5, characterized in that: The rotating gear (44) is rotatably connected to the driving plate (3) via a rotating shaft (5); a connecting groove (51) is provided at the end of the rotating shaft (5); the cross section of the connecting groove (51) is non-circular; a connecting cavity (31) is provided in the rotating shaft (5); a connecting rod (6) is passed through the driving plate (3); the connecting rod (6) passes through the connecting cavity (31); a connecting block matching the connecting groove (51) is provided at the end of the connecting rod (6); the connecting rod (6) is slidably connected to the rotating shaft (5); and a connecting rod (6) is provided at the connecting A connecting gear (61) is disposed on a side of the cavity (31) away from the rotating shaft (5); a rotating plate (32) is rotatably connected in the connecting cavity (31); a connecting spring (33) is disposed in the connecting cavity (31); two ends of the connecting spring (33) are connected to the connecting gear (61) and the rotating plate (32); a fixing block (34) matching the connecting gear (61) is fixedly disposed on an inner wall of the connecting cavity (31) away from the rotating shaft (5); when the connecting spring (33) is in a natural state, the fixing block (34) is located in a tooth gap of the connecting gear (61).

7. The turning mechanism for producing wooden pallets according to claim 4, characterized in that: The flip plate (41) and the limit plate (42) are both provided with rubber pads (45).

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