Wood veneer segment conveying line

Abstract

The utility model belongs to the veneer conveying technical field, specifically disclose a veneer piece conveying line, including frame, install the feeding assembly and piece assembly for frame, the feeding assembly includes first lifting conveying assembly, second lifting conveying assembly and is used to the feeding assembly of material to piece assembly, the feeding assembly includes feeding mounting bracket, is installed on feeding mounting bracket and is used to drive the feeding drive arrangement of friction roller rotation, piece assembly includes negative pressure machine, negative pressure adsorption pipe, piece roller group and piece conveying belt, negative pressure adsorption pipe sets up in the inboard of negative pressure conveying belt, negative pressure adsorption pipe is connected in negative pressure machine, and the upper end of negative pressure adsorption pipe is provided with adsorption mouth, is provided with the ventilation opening on piece conveying belt, and piece conveying belt is set up obliquely, and veneer automatic piece; can realize veneer pile from the coherent flow of feeding and divide into single piece, reduces manual operation link, improves operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of wood veneer conveying technology, specifically relating to a wood veneer slicing conveying line. Background Technology

[0002] Wood veneer is a commonly used material in furniture manufacturing and interior decoration, and its quality grading has a significant impact on the final product quality. Accurate and efficient grading and conveying of wood veneer not only improves production efficiency but also ensures consistent product quality. Currently, the common method in wood veneer grading and conveying is to use a lifting conveyor belt to transfer the veneer. However, this method has significant drawbacks. Lifting the entire conveyor belt places a huge load, increasing energy consumption and causing accelerated wear on equipment components due to prolonged heavy loads, shortening equipment lifespan. This also leads to misalignment and accumulation of veneer during grading, further affecting the grading effect and production efficiency. In the wood veneer processing flow, the veneer stacking and slicing process is a critical step. The smoothness and efficiency of this step have a decisive impact on the continuity of subsequent processing steps and overall production efficiency. However, in existing technologies, the veneer stacking and slicing process relies heavily on manual operation, with low automation, resulting in low production efficiency. Utility Model Content

[0003] To address the issue of insufficient efficiency in existing veneer stacking and conveying lines, a veneer slab conveying line is proposed. This utility model provides the following technical solution: A veneer slicing conveyor line includes a frame on which a feeding assembly for picking up veneer from a veneer stack and a slicing assembly for slicing veneer from the feeding assembly into individual slices are mounted. The feeding assembly includes a first lifting conveyor assembly for initial feeding, a second lifting conveyor assembly for secondary feeding, and a feeding assembly for feeding veneer to the slicing assembly. The feeding assembly includes a feeding mounting frame on which friction rollers for rubbing the veneer and a feeding drive device for driving the friction rollers to rotate are mounted. The slicing assembly includes a negative pressure machine, a negative pressure adsorption pipe, a slicing roller assembly, and a slicing conveyor belt. The negative pressure adsorption pipe is disposed inside the negative pressure conveyor belt and connected to the negative pressure machine. An adsorption port is provided at the upper end of the negative pressure adsorption pipe. A ventilation port is provided on the slicing conveyor belt. The slicing conveyor belt is inclined, and the end of the slicing conveyor belt closer to the feeding assembly is lower than the end farther from the feeding assembly.

[0004] Preferably, the frame is equipped with an auxiliary fan for blowing air onto the segmented conveyor belt, and the outlet of the auxiliary fan is set higher than the segmented conveyor belt.

[0005] Preferably, the first lifting and conveying assembly includes a first bracket and a first lifting drive device. The output end of the first lifting drive device is connected to the second bracket. The second lifting and conveying assembly includes a second bracket and a second lifting drive device. The output end of the second lifting drive device is connected to the second bracket. A robotic arm assembly is installed on the second bracket. The robotic arm assembly includes an opening and closing drive assembly, a first cross fork and a second cross fork for actively picking up part of the material for feeding. The opening and closing drive assembly drives the first cross fork and the second cross fork to move away from each other or move closer to each other. The first cross fork and the second cross fork are disposed between the first bracket and the friction roller. Both the first bracket and the second bracket are slidably connected to the frame.

[0006] Preferably, the opening and closing drive assembly includes a first opening and closing cylinder and a second opening and closing cylinder mounted on the second bracket. The output ends of the first opening and closing cylinder and the output ends of the second opening and closing cylinder are arranged facing each other. The output end of the first opening and closing cylinder is connected to the first crossbar, and the output end of the second opening and closing cylinder is connected to the second crossbar.

[0007] Preferably, a plurality of feeding conveyor rollers are rotatably connected to the first bracket, and a wood veneer stack conveyor line is provided at intervals on one side of the feeding conveyor rollers, and the wood veneer stack conveyor line is connected to the first bracket with a gap.

[0008] Preferably, the feeding assembly further includes a feeding active idler roller and a feeding driven pressure roller, the feeding active idler roller being rotatably connected to the feeding mounting frame; the feeding mounting frame is equipped with a feeding gap adjustment frame and a feeding gap adjustment drive device, the feeding gap adjustment frame is hinged to the feeding mounting frame, the feeding driven pressure roller is rotatably connected to the feeding mounting frame, and the feeding gap adjustment drive device is hinged to the feeding mounting frame and droopingly connected to the feeding mounting frame.

[0009] Preferably, the assembly further includes a grading and feeding device, which is disposed on the discharge side of the slitting assembly. The grading and feeding device includes a mounting base and a grading assembly. The grading assembly includes a first conveyor roller and a second conveyor roller disposed on the front side, and a third conveyor roller and a fourth conveyor roller disposed on the rear side. A first belt is fitted on the first and third conveyor rollers, and a second belt is fitted on the second and fourth conveyor rollers. The first belt is disposed on the upper side of the second belt, and a lower-level conveying channel for continuing the next grading is formed between the first belt and the second belt. A grading transition plate is disposed on the front side of the lower-level conveying channel. The grading transition plate is slidably hinged to the mounting base. A grading adjustment drive device for driving the grading transition plate to flip is mounted on the mounting base. The rear part of the grading transition plate can be operably flipped to the lower side of the lower-level conveying channel and the second conveyor roller. After the grading adjustment drive device drives the grading transition plate to flip to the lower side of the second conveyor roller, the veneer moves backward and downward and falls off. After the grading adjustment drive device drives the grading transition plate to flip to the lower-level conveying channel, the veneer is clamped into the lower-level conveying channel and continues to be clamped and fed backward.

[0010] Preferably, a grading collection component for collecting graded veneer is provided on the lower side of the grading component. The grading collection component includes a first flip plate and a second flip plate arranged symmetrically on the left and right, and a grading collection drive device for driving the first flip plate and the second flip plate to rotate. The rotation axes of the first flip plate and the second flip plate are parallel to the front and back directions, and the cross-sections of the first flip plate and the second flip plate are cross-shaped.

[0011] Preferably, the mounting base has two or more grading components arranged at intervals; a grading guide plate is mounted on the rear side of the last grading component via a side bracket, the grading guide plate is located on the rear side of its lower conveying channel and is inclined to the rear and lower side, and a grading collection component is provided on the lower side of the grading guide plate.

[0012] Preferably, the lower side of the grading and collecting assembly is provided with a lateral conveyor belt for moving the graded veneer to the left or right.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The first and second cross forks pick up and feed the wood veneer stack to the friction roller. The friction roller moves the stack in sections, which can achieve uninterrupted conveying, reduce intermediate loading waiting time, and improve production efficiency. 2. The first and second flip plates have a cross-shaped cross section, which enhances structural rigidity and improves flipping efficiency. They have low load and high durability. The graded collection drive device ensures that the two plates rotate synchronously, improves collection consistency, and is stable in operation and easy to maintain. 3. The wood veneer slicing conveyor line is seamlessly integrated, enabling a continuous process from initial loading to secondary loading and then to horizontal and individual slicing of wood veneer stacks, reducing manual operation and improving the overall automation level of the operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall layout structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the feeding assembly; Figure 3 This is a 3D structural diagram of the feeding assembly; Figure 4 This is a side view of the feeding assembly. Figure 5 This is a cross-sectional view of the feeding assembly. Figure 6 This is a front view structural diagram of the feeding assembly; Figure 7 yes Figure 1 A magnified view of a section at point A in the middle; Figure 8 This is a schematic diagram of the overall structure of the grading and feeding device; Figure 9 This is a partial structural diagram of the grading and feeding device; Figure 10 This is a schematic diagram of the transmission principle of the graded transition plate; Figure 11 This is a schematic diagram of the layout structure of the grading and feeding device; Figure 12 This is a partial three-dimensional structural diagram of the hierarchical collection component; In the attached diagram: 1. Frame; 2. Feeding assembly; 21. First lifting and conveying assembly; 211. First bracket; 2111. Feeding conveyor roller; 2112. Slide rail; 2113. Slider; 212. First lifting drive device; 2121. First lifting motor; 2122. First lifting belt; 22. Second lifting and conveying assembly; 221. Second bracket; 2211. Guide rod; 222. Second lifting drive device; 2221. Second lifting motor; 2222. Second lifting belt. 23. Lowering belt; 23. Opening and closing drive assembly; 231. First opening and closing cylinder; 232. Second opening and closing cylinder; 234. First cross fork; 235. Second cross fork; 24. Feeding assembly; 241. Feeding mounting frame; 242. Friction roller; 243. Feeding drive device; 244. Feeding active idler roller; 245. Feeding driven pressure roller; 246. Feeding transition roller; 247. Drive gear; 248. Driven gear; 249. Feeding gap adjustment frame; 2410. Feeding gap adjustment 3. Drive unit; 4. Segmentation assembly; 5. Negative pressure machine; 6. Negative pressure adsorption pipe; 7. Segmentation conveyor belt; 8. Wood veneer stack conveyor line; 9. Grading and unloading device; 10. Mounting base; 11. Grading assembly; 12. First conveyor roller; 13. Second conveyor roller; 14. Third conveyor roller; 15. Fourth conveyor roller; 16. First belt; 17. Second belt; 18. Lower-level conveying channel; 19. Grading transition plate; 20. Grading adjustment drive device; 21. 10. First swing transmission rod; 5211. Second swing transmission rod; 5212. Side support; 5213. Grading guide plate; 6. Grading collection assembly; 61. First tilting plate; 62. Second tilting plate; 63. Grading collection drive device; 64. Collection transmission rod; 65. Spur gear pair; 66. First tilting rod; 67. Second tilting rod; 68. Bevel gear pair; 7. Alignment device; 71. Alignment cylinder; 72. Alignment plate; 8. Side-shifting conveyor belt; 9. Intermediate conveyor device. Detailed Implementation

[0015] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0016] A veneer slicing conveyor line includes a frame 1, on which a feeding assembly 2 for picking up veneer from a veneer stack and a slicing assembly 3 for slicing veneer from the feeding assembly 2 into individual slices are mounted. The feeding assembly 2 includes a first lifting conveyor 21 for initial feeding, a second lifting conveyor 22 for secondary feeding, and a feeding assembly 24 for feeding veneer to the slicing assembly 3. The feeding assembly 24 includes a feeding mounting frame 241, on which a friction roller 242 for rubbing the veneer and a feeding drive device 243 for driving the friction roller 242 to rotate are mounted. The slicing assembly 3 includes a negative pressure machine 31, a negative pressure adsorption pipe 32, a slicing roller group, and a slicing conveyor belt 33. The negative pressure adsorption pipe 32 is located inside the negative pressure conveyor belt and is connected to the negative pressure machine 31. The upper end of the negative pressure adsorption pipe 32 is provided with an adsorption port. The segmented conveyor belt 33 is provided with a ventilation port. The segmented conveyor belt 33 is inclined and the end of the segmented conveyor belt 33 closer to the feeding component 24 is lower than the end farther away from the feeding component 24. The wood veneer at the bottom moves stably and the wood veneer on it gradually falls to the rear, thereby realizing automatic segmentation. Through the coordinated cooperation of the first lifting conveyor component 21, the second lifting conveyor component 22 and the feeding component 24, a continuous process can be realized from the initial feeding to the secondary feeding and then to the horizontal and segmentation into individual pieces of the wood veneer stack, reducing manual operation links and improving the overall automation level of the operation. Specifically, to improve efficiency, an auxiliary fan is installed on the frame 1 to blow air onto the segmented conveyor belt 33. The outlet of the auxiliary fan is higher than the segmented conveyor belt 33. The fan blows air onto the veneer from the upper side against the direction of the segmented conveyor belt 33, thereby accelerating the separation efficiency and helping to shorten the length of the segmented conveyor belt 33.

[0017] The first lifting and conveying assembly 21 includes a first bracket 211 and a first lifting drive device 212. The output end of the first lifting drive device 212 is connected to a second bracket 221. The second lifting and conveying assembly 22 includes a second bracket 221 and a second lifting drive device 222. The output end of the second lifting drive device 222 is connected to the second bracket 221. A robotic arm assembly is mounted on the second bracket 221. The robotic arm assembly includes an opening and closing drive assembly 23, a first cross fork 234 and a second cross fork 235 for actively forking a portion of the material for feeding, and an opening and closing mechanism. The drive assembly 23 drives the first cross fork 234 and the second cross fork 235 to move away from or near each other. The relative motion design of the first cross fork 234 and the second cross fork 235 can accurately pick up the veneer stack, avoid damage to the veneer during the picking process, and ensure the quality of the veneer. The first cross fork 234 and the second cross fork 235 are set between the first bracket 211 and the friction roller 242. The veneer stack is picked up and sent to the friction roller 242. The friction roller 242 performs segmented lateral movement, which can realize uninterrupted conveying, reduce intermediate loading waiting time, and greatly improve production efficiency.

[0018] Specifically, the first bracket 211 and the second bracket 221 are both slidably connected to the frame 1, so that the first bracket 211 and the second bracket 221 can move stably on the frame 1, ensuring that there will be no shaking or deviation during the lifting process, and ensuring the stability of the wood veneer stack during the transportation process.

[0019] Specifically, a slider 2113 is fixedly connected to the side of the first bracket 211, and a slide rail 2112 is fixedly connected to the frame 1. The slide rail 2112 extends vertically, and the slider 2113 slides vertically and is connected to the slide rail 2112, providing precise guidance for the vertical sliding of the first bracket 211, so that the first bracket 211 can move according to the predetermined trajectory, further improving the accuracy of the veneer stack conveying.

[0020] Specifically, a guide rod 2211 is fixedly connected to the second bracket 221, and a sliding groove is provided on the top of the frame 1. The guide rod 2211 is slidably connected to the sliding groove, providing stable support and guidance for the up-and-down movement of the second bracket 221, preventing the second bracket 221 from tilting during lifting and ensuring the normal operation of the robotic arm assembly. In another embodiment, the second bracket 221 is moved up and down by a chain lifting mechanism in the prior art. Figure 5 The position of the guide rod 2211 shown is directly replaced by the position of the chain, and the second bracket 221 is lifted directly by the chain.

[0021] Specifically, the opening and closing drive assembly 23 includes a first opening and closing cylinder 231 and a second opening and closing cylinder 232 mounted on the second bracket 221. The output ends of the first opening and closing cylinder 231 and the second opening and closing cylinder 232 are arranged facing each other. The output end of the first opening and closing cylinder 231 is connected to a first cross fork 234 that is laterally slidably connected to the second bracket 221, and the output end of the second opening and closing cylinder 232 is connected to a second cross fork 235 that is laterally slidably connected to the second bracket 221. This assembly can precisely control the movement of the first support rod and the second support rod, thereby achieving precise opening and closing of the first cross fork 234 and the second cross fork 235 and improving the efficiency of picking up the veneer stack.

[0022] Specifically, multiple feeding conveyor rollers 2111 are rotatably connected to the first bracket 211, which allows the veneer stack to move smoothly on the first bracket 211, reduces the friction between the veneer and the bracket, and prevents the veneer from being damaged during the conveying process.

[0023] Specifically, a wood veneer stack conveyor line 4 is spaced apart on one side of the feeding conveyor roller 2111, and the wood veneer stack conveyor line 4 is gap-connected to the first bracket 211. The gap connection between the wood veneer stack conveyor line 4 and the first bracket 211 enables seamless transfer of the wood veneer stack from the conveyor line to the first bracket 211, reducing the downtime of the wood veneer stack during the transfer process, improving the conveying efficiency, and also allowing single or multiple pieces to be transported and then stacked on the first bracket 211.

[0024] Specifically, the first bracket 211 is equipped with a first limiting plate for limiting the lateral position of the veneer stack and a second limiting plate for limiting the longitudinal position of the veneer stack. This accurately limits the position of the veneer stack on the first bracket 211, preventing the veneer stack from shifting during transport and ensuring the accuracy of subsequent forklift picking and transport.

[0025] Specifically, the feeding assembly 24 also includes a feeding active idler roller 244 and a feeding driven pressure roller 245. The friction roller 242 is positioned higher than the feeding active idler roller 244. The feeding active idler roller 244 is rotatably connected to the feeding mounting frame 241. A feeding transition roller 246 is also rotatably connected to the feeding mounting frame 241. The feeding transition roller 246 is located between the friction roller 242 and the feeding active idler roller 244 and is not lower than the feeding active idler roller 244, serving as an intermediate transition. The feeding drive device 243 is mounted on the feeding mounting frame 241. The device 243 uses a servo motor, which drives the friction roller 242 and the feed transition roller 246 via a belt. The feed transition roller 246 has a drive gear 247 fixedly connected to its end, and the feed drive roller 244 has a driven gear 248 fixedly connected to the same end. The drive gear 247 meshes with the driven gear 248, thereby transmitting power to the feed drive roller 244. This ensures the stability and accuracy of power transmission, and coordinates the rotation speed of the feed drive roller 244 and the friction roller 242, keeping the veneer stable during transport.

[0026] Specifically, the feeding mounting frame 241 is equipped with a feeding gap adjustment frame 249 and a feeding gap adjustment drive device 2410. The feeding gap adjustment frame 249 is hinged to the feeding mounting frame 241, the feeding driven pressure roller 245 is rotatably connected to the feeding mounting frame 241, and the feeding gap adjustment drive device 2410 is hinged to the feeding mounting frame 241 and driven by the feeding mounting frame 241. By driving the feeding gap adjustment frame 249 through the feeding gap adjustment drive device 2410, the gap between the feeding active roller 244 and the feeding driven pressure roller 245 can be flexibly adjusted to accommodate veneers of different thicknesses and specifications, ensuring that the veneers can be stably clamped and smoothly conveyed.

[0027] Specifically, both the first lifting drive device 212 and the second lifting drive device 222 adopt belt lifting assemblies. Specifically, the first lifting drive device 212 includes a first lifting motor 2121 and two first lifting belts 2122. The first lifting motor 2121 drives the two first lifting belts 2122 to rotate through a reducer. The two sides of the first bracket 211 are respectively fixedly connected to the two first belts 525, thereby realizing the lifting of the first bracket 211. Similarly, the second lifting drive device 222 includes a second lifting motor 2221 and two second lifting belts 2222. The second lifting motor 2221 drives the two second lifting belts 2222 to rotate through a reducer. The two sides of the second bracket 221 are respectively fixedly connected to the two second belts 526, thereby realizing the lifting of the second bracket 221. This can evenly distribute the weight, making the lifting process more stable, reducing the shaking caused by uneven force, and extending the service life of the equipment.

[0028] It also includes an intermediate conveying device 9 and a grading and unloading device 5. The intermediate conveying device 9 is located between the grading and unloading device 5 and the slab assembly 3 for intermediate conveying and leveling. The grading and unloading device 5 includes a mounting base 51 and a grading assembly 52. ​​The mounting base 51 is fixed on the frame 1. The grading assembly 52 includes a first conveying roller 521 and a second conveying roller 522 located on the front side, and a third conveying roller 523 and a fourth conveying roller 524 located on the rear side. A first belt 525 is fitted on the first conveying roller 521 and the third conveying roller 523, and a second belt 526 is fitted on the second conveying roller 522 and the fourth conveying roller 524. The first belt 525 is located above the second belt 526. A lower-level conveying channel 527 for continuing the next grading is formed between the first belt 525 and the second belt 526, realizing a smooth transition and continuous conveying of the veneer. The structure is simple and easy to maintain. A grading transition plate 528 is provided on the front side of the conveying channel 527. The grading transition plate 528 is slidably hinged to the mounting base 51. A grading adjustment drive device 529 is installed on the mounting base 51 to drive the grading transition plate 528 to flip, which facilitates flexible control of the veneer flow direction, has high reliability, and low load. The rear part of the grading transition plate 528 can be operated to flip to the lower conveying channel 527 and the lower side of the second conveying roller 522, ensuring that the veneer can fall accurately into the designated position, with stable operation and convenient maintenance. After the grading adjustment drive device 529 drives the grading transition plate 528 to flip to the lower side of the second conveying roller 522, the veneer moves backward and downward and falls. After the grading adjustment drive device 529 drives the grading transition plate 528 to flip to the lower conveying channel 527, the veneer is clamped and sent to the lower conveying channel 527 and continues to be clamped and sent backward, completing the automatic grading and transfer process with low overall load and high operating efficiency.

[0029] Specifically, the graded adjustment drive device 529 includes a graded drive motor, a first swing transmission rod 5210, and a second swing transmission rod 5211. The output end of the graded adjustment drive device 529 is fixedly connected to the first swing transmission rod 5210, the first swing transmission rod 5210 is hinged to the second swing transmission rod 5211, and the lower end of the second swing transmission rod 5211 is hinged to the middle of the graded transition plate 528, providing stable power transmission and precise control. It has a compact structure and is easy to maintain. Adjusting the conveying speed and the position of the graded transition plate 528 can achieve two transition methods: the graded transition plate 528 can be supported by its upper end face or limited and guided by its lower end face.

[0030] Specifically, high-pixel cameras can be installed on the upper front and lower front sides of the grading transition plate 528 on the frame 1. Defect identification and grading are performed in conjunction with existing mature vision systems. The grading drive motor is driven and controlled according to the grading results. Actual grading processing is performed through the grading adjustment drive device 529. This utility model aims to provide a grading conveying mechanical structure. The identification process is not the focus of this solution, and the vision solution is a conventional technology, so it will not be described in detail.

[0031] Specifically, a grading collection component 6 for collecting graded veneer is provided on the lower side of the grading component 52. The grading collection component 6 includes a first flip plate 61 and a second flip plate 62 arranged symmetrically on the left and right, and a grading collection drive device 63 for driving the first flip plate 61 and the second flip plate 62 to rotate. The rotation axes of the first flip plate 61 and the second flip plate 62 are parallel to the front and back directions, realizing symmetrical collection and stable stacking of veneer. The design is simple and highly reliable.

[0032] Specifically, the cross-sections of the first flip plate 61 and the second flip plate 62 are cross-shaped, which enhances structural rigidity and improves flipping efficiency, with lower load and stronger durability.

[0033] Specifically, the graded collection drive device 63 includes a graded collection motor, and a collection transmission rod 64, a first flipping rod 66, and a second flipping rod 67 rotatably connected to the mounting base 51. The graded collection motor is driven and connected to the collection transmission rod 64 through a spur gear pair 65. The first flipping plate 61 is fixed on the first flipping rod 66, and the second flipping plate 62 is fixed on the second flipping rod 67. The two ends of the collection transmission rod 64 are connected to the first flipping rod 66 and the second flipping rod 67 through a bevel gear pair 68, ensuring that the two plates rotate synchronously, improving collection consistency, ensuring smooth operation, and facilitating maintenance.

[0034] Specifically, the first flip plate 61 and the second flip plate 62 are provided with a sizing device 7 on the front and rear sides. The sizing device 7 includes a sizing cylinder 71 and a sizing plate 72. The output end of the sizing cylinder 71 faces the first flip plate 61 and the second flip plate 62 and is connected to the sizing plate 72. It automatically sorts the edges of the veneer to ensure neat stacking. It has a simple structure and low load.

[0035] Specifically, the mounting base 51 has three graded components 52 arranged at intervals, supporting four-level classification to meet different quality requirements, with strong expandability and convenient maintenance.

[0036] Specifically, a grading guide plate 5213 is installed on the rear side of the last grading component 52 via a side bracket 5212. The grading guide plate 5213 is located on the rear side of its lower conveying channel 527 and is inclined to the rear and lower side to guide the veneer to slide smoothly, reduce jamming, ensure high reliability, and is easy to install.

[0037] Specifically, a graded collection component 6 is provided on the lower side of the graded guide plate 5213, which facilitates centralized processing of the final product, optimizes the structure, and reduces the load.

[0038] Specifically, the lower side of the grading and collection component 6 is provided with a side conveyor belt 8 for moving the graded veneer to the left or right. A aligning device 7 is also provided on one side of the side conveyor belt 8, which facilitates the rapid transfer and subsequent processing of the veneer, and is efficient in operation and easy to maintain.

[0039] Work process: The veneer stack is conveyed onto the feeding conveyor roller 2111 via the veneer stack conveyor line 4. The first lifting drive device 212 drives the first bracket 211 to rise, and the opening and closing drive assembly 23 drives the first cross fork 234 and the second cross fork 235 to move away from each other. The first bracket 211 rises until the veneer stack is a certain height above the first cross fork 234 and the second cross fork 235. Then, the opening and closing drive assembly 23 drives the first cross fork 234 and the second cross fork 235 to move closer to each other and insert into the veneer stack. The second lifting drive device 222 drives the second bracket 221 to rise, and the veneer stack moves toward the friction roller 242. 242 Friction of the wood veneer moves the veneer towards the feed transition roller 246. The feed transition roller 246 receives and drives the veneer towards the feed drive roller 244. The feed drive roller 244 and the feed driven pressure roller 245 clamp the veneer and drive it to continue moving. The spacing is set so that two veneers pass through at a time. While the second support 221 continuously lifts the feed, the lower feeding conveyor roller 2111 can continue to prepare stacks of veneer and lift them up in time to replenish the second support 221, thereby achieving near-zero-interruption veneer sheet conveying, greatly improving transportation efficiency and overall production efficiency, and reducing production costs. Two pieces of veneer enter the slitting conveyor belt 33 from the front. They are then slid again into single pieces via the negative pressure adsorption pipe 32 and the negative pressure machine 31. The single veneer continues to move backward and is clamped by the first belt 525 and the second belt 526. The grading adjustment drive device 529 controls the grading transition plate 528 to flip according to grading requirements. The entire process is simple in structure and highly reliable. When the grading transition plate 528 turns to the underside of the second conveyor roller 522, the veneer falls downward to the grading collection component 6, achieving primary classification with low load and easy maintenance. When the grading transition plate 528 turns to the lower conveying channel 527, the veneer is further clamped to the second grading component 52 for secondary grading, then enters the third grading component 52 for tertiary grading, and finally, after being guided downward by the grading guide plate 5213, it can be graded into four levels. The device operates smoothly. The graded veneer is collected by the flipping plate, and the aligning device 7 stacks the veneer neatly. Finally, it is removed by the side-shifting conveyor belt 8, completing the entire grading and conveying process. The overall design is optimized, easy to maintain, and highly efficient.

Claims

1. A veneer slicing conveyor line, characterized in that, The system includes a frame (1) on which a feeding assembly (2) for taking material from a veneer stack and a slitting assembly (3) for dividing the veneer from the feeding assembly (2) into individual pieces are mounted. The feeding assembly (2) includes a first lifting conveyor assembly (21) for initial feeding, a second lifting conveyor assembly (22) for secondary feeding, and a feeding assembly (24) for feeding material to the slitting assembly (3). The feeding assembly (24) includes a feeding mounting frame (241) on which a friction roller (242) for rubbing the veneer and a drive for the friction roller are mounted. (242) Rotating feeding drive device (243); The segmentation assembly (3) includes a negative pressure machine (31), a negative pressure adsorption tube (32), a segmentation roller group and a segmentation conveyor belt (33). The negative pressure adsorption tube (32) is located inside the negative pressure conveyor belt. The negative pressure adsorption tube (32) is connected to the negative pressure machine (31). An adsorption port is provided at the upper end of the negative pressure adsorption tube (32). A ventilation port is provided on the segmentation conveyor belt (33). The segmentation conveyor belt (33) is inclined, and the end of the segmentation conveyor belt (33) closer to the feeding assembly (24) is lower than the end farther away from the feeding assembly (24).

2. The veneer slicing conveyor line according to claim 1, characterized in that, An auxiliary fan for blowing air onto the segmented conveyor belt (33) is installed on the frame (1), and the outlet of the auxiliary fan is set higher than the segmented conveyor belt (33).

3. The veneer slicing conveyor line according to claim 1, characterized in that, The first lifting and conveying assembly (21) includes a first bracket (211) and a first lifting drive device (212). The output end of the first lifting drive device (212) is connected to the second bracket (221). The second lifting and conveying assembly (22) includes a second bracket (221) and a second lifting drive device (222). The output end of the second lifting drive device (222) is connected to the second bracket (221). A robotic arm assembly is installed on the second bracket (221). The robotic arm assembly includes an opening and closing drive assembly (23), a first cross fork (234) and a second cross fork (235) for actively picking up part of the material for feeding. The opening and closing drive assembly (23) drives the first cross fork (234) and the second cross fork (235) to move away from each other or closer to each other. The first cross fork (234) and the second cross fork (235) are arranged between the first bracket (211) and the friction roller (242). The first bracket (211) and the second bracket (221) are both slidably connected to the frame (1).

4. The veneer slicing conveyor line according to claim 3, characterized in that, The opening and closing drive assembly (23) includes a first opening and closing cylinder (231) and a second opening and closing cylinder (232) mounted on the second bracket (221). The output ends of the first opening and closing cylinder (231) and the second opening and closing cylinder (232) are arranged facing each other. The output end of the first opening and closing cylinder (231) is connected to the first crossbar (234), and the output end of the second opening and closing cylinder (232) is connected to the second crossbar (235).

5. The veneer slicing conveyor line according to claim 3, characterized in that, Multiple feeding conveyor rollers (2111) are rotatably connected to the first bracket (211). A wood veneer stack conveyor line (4) is provided at intervals on one side of the feeding conveyor roller (2111). The wood veneer stack conveyor line (4) is connected to the first bracket (211) with a gap.

6. The veneer slicing conveyor line according to claim 3, characterized in that, The feeding assembly (24) further includes a feeding active roller (244) and a feeding driven pressure roller (245). The feeding active roller (244) is rotatably connected to the feeding mounting frame (241). The feeding mounting frame (241) is equipped with a feeding gap adjustment frame (249) and a feeding gap adjustment drive device (2410). The feeding gap adjustment frame (249) is hinged to the feeding mounting frame (241). The feeding driven pressure roller (245) is rotatably connected to the feeding mounting frame (241). The feeding gap adjustment drive device (2410) is hinged to the feeding mounting frame (241) and rotatably connected to the feeding mounting frame (241).

7. The veneer slicing conveyor line according to any one of claims 1-6, characterized in that, It also includes a grading and feeding device (5), which is located on the discharge side of the segmentation assembly (3). The grading and feeding device (5) includes a mounting base (51) and a grading assembly (52). The grading assembly (52) includes a first conveying roller (521) and a second conveying roller (522) located on the front side, and a third conveying roller (523) and a fourth conveying roller (524) located on the rear side. A first belt (525) is fitted on the first conveying roller (521) and the third conveying roller (523), and a second belt (526) is fitted on the second conveying roller (522) and the fourth conveying roller (524). The first belt (525) is located above the second belt (526), ​​and a lower-level conveyor for the next grading is formed between the first belt (525) and the second belt (526). Channel (527); A grading transition plate (528) is provided on the front side of the lower conveying channel (527). The grading transition plate (528) is slidably hinged to the mounting base (51). A grading adjustment drive device (529) for driving the grading transition plate (528) to flip is installed on the mounting base (51). The rear part of the grading transition plate (528) can be flipped to the lower side of the lower conveying channel (527) and the second conveying roller (522). After the grading adjustment drive device (529) drives the grading transition plate (528) to flip to the lower side of the second conveying roller (522), the veneer moves to the rear and falls. After the grading adjustment drive device (529) drives the grading transition plate (528) to flip to the lower conveying channel (527), the veneer is clamped to the lower conveying channel (527) and continues to be clamped to the rear.

8. The veneer slicing conveyor line according to claim 7, characterized in that, The grading component (52) is provided with a grading collection component (6) for collecting the graded veneer. The grading collection component (6) includes a first flip plate (61) and a second flip plate (62) arranged symmetrically on the left and right sides, and a grading collection drive device (63) for driving the first flip plate (61) and the second flip plate (62) to rotate. The rotation axes of the first flip plate (61) and the second flip plate (62) are parallel to the front and back directions. The cross-section of the first flip plate (61) and the second flip plate (62) is cross-shaped.

9. The veneer slicing conveyor line according to claim 8, characterized in that, Two or more grading components (52) are arranged at intervals on the mounting base (51); a grading guide plate (5213) is installed on the rear side of the last grading component (52) via a side bracket (5212). The grading guide plate (5213) is located on the rear side of its lower conveying channel (527) and is inclined to the rear and lower side. A grading collection component (6) is provided on the lower side of the grading guide plate (5213).

10. The veneer slicing conveyor line according to claim 8, characterized in that, The grading collection assembly (6) is provided with a lateral conveyor belt (8) for moving the graded veneer to the left or right.

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