Reciprocating synchronizing device for feeding of flaking machine
By employing a reciprocating transmission mechanism with gear and rack meshing and a universal coupling in the chipper, the synchronization and stability issues of the feeding device are solved, improving the processing accuracy and equipment life of the chipper and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI YOUMING WOOD BASED PANEL MASCH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-01
AI Technical Summary
The existing disc-type chipper's feeding device suffers from poor synchronization of the conveying components, insufficient stability of the drive device, and is prone to vibration or jamming, which affects processing accuracy and equipment lifespan. In addition, the structure is complex and maintenance is difficult.
The reciprocating transmission mechanism employs a gear mechanism and a rack mechanism meshing together. It connects the pressing device and the long material conveyor through the transmission shaft to achieve synchronous reciprocating feeding. It also uses a universal coupling to compensate for shaft and angular deviations, and combines a telescopic mechanism and guide bearings to ensure stability and accuracy.
Synchronous transmission of ultra-long material conveyors has been achieved, which has improved processing accuracy and equipment stability, extended service life, and reduced power loss and maintenance difficulty.
Smart Images

Figure CN224183310U_ABST
Abstract
Description
Piecing mill feeding reciprocating synchronous device Technical Field
[0001] This utility model belongs to the technical field of disc-type chipper, and more specifically, it relates to a feeding reciprocating synchronous device for a chipper. Background Technology
[0002] A disc wood chipper is a device that mechanically cuts wood into thin slices or shavings. These slices or shavings can be used to produce products such as particleboard, greatly improving the utilization rate of wood. The feeding efficiency and precision of the wood chipper directly affect the quality of the slices and the production efficiency.
[0003] The existing feeding device of the disc-type chipper, such as the patent with announcement number "CN222038911U", discloses a long material pushing and cutting feeding device. The feeding device moves along the width of the frame through a drive device. The drive device drives multiple sets of lead screws to move the gantry and conveying components through chain and sprocket transmission, which solves the problem of feeding long materials without pretreatment.
[0004] However, in actual use, the following problems still exist: 1. Since the length of the transmission component is more than 10 meters, multiple sets of lead screws rotate sequentially under the sequential drive of the chain, resulting in a time difference. This leads to poor synchronization in the forward and backward directions of the transmission component. During the reciprocating motion, the stability of the drive device is insufficient, which can easily cause vibration or jamming, reducing processing accuracy and equipment life; 2. The drive device includes multiple components such as the pushing power mechanism, lead screw, and guide rod, and the structure is relatively complex. During long-term use, the threads of the lead screw are prone to wear, affecting transmission accuracy and efficiency. Moreover, since multiple components work together, once a component fails, troubleshooting and repair require a lot of time and effort, affecting production efficiency. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a reciprocating synchronous feeding device for a wood chipper. The transmission shafts at both ends of the reciprocating transmission mechanism are equipped with gear mechanisms that mesh with the rack mechanism on the pressing device and the long wood conveyor. This enables the long wood conveyor of 10 meters or more to reciprocate feeding synchronously with the pressing device, solves the problem of transmission time difference between the front and rear ends of the ultra-long wood conveyor, ensures the stability of long wood during the planing process, and improves processing accuracy.
[0006] The aforementioned chipper feeding reciprocating synchronous device includes a base assembly, on which a long material conveyor and a pressing device are movably connected. The pressing device is fixedly installed at one end of the long material conveyor. The conveying direction of the long material conveyor is perpendicular to the moving direction of the long material conveyor and the pressing device. A reciprocating transmission mechanism for driving the pressing device and the long material conveyor to move synchronously is rotatably connected to the base assembly. The reciprocating transmission mechanism includes at least one drive shaft. Gear mechanisms are fixedly connected to the drive shafts at both ends of the reciprocating transmission mechanism. Rack mechanisms that mesh with the gear mechanisms are fixedly connected to the pressing device and the long material conveyor.
[0007] Preferably, there are two or more drive shafts, adjacent drive shafts are connected by universal couplings, and one or both ends of the drive shaft are provided with bearing seats, which are fixedly connected to the base assembly.
[0008] Preferably, a gear one is fixedly connected to the drive shaft near the end of the pressing device, and a gear two is fixedly connected to the drive shaft near the tail of the long material conveyor. Gear one and gear two are the same size.
[0009] Preferably, the pressing device includes a pressing frame, with a rack one meshing with a gear one fixedly connected to the lower end of the pressing frame near the side of the long material conveyor, and a rack two meshing with a gear two fixedly connected to the lower part of the long material conveyor.
[0010] Preferably, the base assembly includes a support base, on which multiple sets of parallel guide rails are fixedly connected. The length direction of the guide rails is perpendicular to the conveying direction of the long material conveyor. The drive shaft passes through the support base and / or the guide rails, and the upper end face of the guide rails is higher than the upper end face of the drive shaft.
[0011] Preferably, the bottom of the pressing device and the long material conveyor are respectively provided with sliding components that cooperate with the guide rail.
[0012] Preferably, the sliding component is a sliding block.
[0013] Preferably, the sliding component is a roller.
[0014] Preferably, it also includes a planing assembly, which is arranged opposite to the pressing device. A telescopic mechanism for driving the pressing device to move is provided between the planing assembly and the pressing device. The telescopic end of the telescopic mechanism is rotatably connected to the pressing device, and the other end of the telescopic mechanism is rotatably connected to the planing assembly.
[0015] Preferably, at least one set of guide shafts is fixedly connected to the planing assembly, the axial direction of the guide shafts is parallel to the moving direction of the pressing device, and a linear bearing that slides with the guide shafts is fixedly connected to the pressing device.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. By setting gear mechanisms on the transmission shafts at both ends of the reciprocating transmission mechanism, which mesh with the rack mechanism on the pressing device and the long timber conveyor, the long timber conveyor of 10 meters and above can be synchronously fed back and forth with the pressing device. This solves the problem of transmission time difference between the front and rear ends of the ultra-long timber conveyor, ensures the stability of long timber during planing, and improves processing accuracy.
[0018] 2. Adjacent drive shafts are connected by universal couplings, which can compensate for different shaft and angular deviations and ensure stable power transmission; the bearing housing provides support for the drive shaft, reduces vibration, improves transmission accuracy, and extends the service life of the equipment.
[0019] 3. A telescopic mechanism is used as the power source for feeding. The telescopic mechanism can precisely control the moving distance and speed of the pressing device according to the requirements of the planing blade. At the same time, the guide shaft and linear bearing work together to enhance the moving stability of the pressing device, further improving the accuracy and quality of long material planing.
[0020] 4. The sliding components use rollers, which have low rolling friction, making the long material conveyor and pressing device slide more smoothly, reducing power loss. In addition, the structure is reasonably designed, which facilitates the meshing of the gear mechanism and the rack mechanism and the maintenance. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the left side structure of this utility model;
[0022] Figure 2 is a schematic diagram of the right side structure of this utility model;
[0023] Figure 3 is a schematic diagram of the installation of the telescopic mechanism, guide shaft and planing assembly;
[0024] Figure 4 is a schematic diagram of the installation of the telescopic mechanism, guide shaft and pressing device;
[0025] Figure 5 is a schematic diagram showing the connection between the pressing device and the long material conveyor;
[0026] Figure 6 is a schematic diagram of the cooperation between the reciprocating transmission mechanism and the base assembly.
[0027] In the diagram, 1. Base assembly; 101. Support base; 102. Guide rail; 2. Planing assembly; 201. Planing frame; 202. Planing cutter head; 203. Guide shaft; 204. Fixed seat; 205. Rotating seat one; 206. Telescopic mechanism; 207. Linear bearing; 208. Rotating seat two; 3. Material pressing device; 301. Material pressing frame; 302. Roller one; 303. Rack one; 4. Long material conveyor; 401. Roller two; 402. Fixed frame; 403. Rack two; 5. Reciprocating transmission mechanism; 501. Drive shaft; 502. Universal coupling; 503. Bearing seat; 504. Gear two; 505. Gear one. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings:
[0029] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] As shown in Figures 1 to 6, the piecing machine feeding reciprocating synchronous device includes a base assembly 1, a pressing device 3, a long timber conveyor 4, a reciprocating transmission mechanism 5, and a planing assembly 2. The base assembly 1 serves as a supporting foundation, and the long timber conveyor 4 and the pressing device 3 are movably connected to it. The long timber conveyor 4 is preferably a chain conveyor for automatically conveying long timber. The pressing device 3 is used to press the long timber during planing to prevent movement and ensure the stability of the long timber during the planing process. The pressing device 3 is fixedly located at the end of the long timber conveyor 4 in the conveying direction, which is also the front end of the feeding process. The conveying direction of the long timber conveyor 4 is perpendicular to the moving direction of both the long timber conveyor 4 and the pressing device 3. In this embodiment, the long timber conveyor 4 conveys long timber along its own length and the length of the base assembly 1, while the long timber conveyor 4 and the pressing device 3 reciprocate and slide along the width of the base assembly 1.
[0031] A reciprocating transmission mechanism 5 is rotatably connected to the base assembly 1 to drive the pressing device 3 and the long conveyor 4 to move synchronously. The reciprocating transmission mechanism 5 includes one or more transmission shafts 501, with gear mechanisms fixedly connected to the transmission shafts 501 at both ends of the reciprocating transmission mechanism 5. Rack mechanisms that mesh with the gear mechanisms are fixedly connected to the pressing device 3 and the long conveyor 4, respectively. When the transmission shafts 501 rotate, the gear mechanisms on the transmission shafts 501 at both ends of the reciprocating transmission mechanism 5 rotate synchronously. The rack mechanisms fixedly connected to the pressing device 3 and the long conveyor 4 mesh with the corresponding gear mechanisms, thereby driving the pressing device 3 and the long conveyor 4 to move synchronously. This solves the problem of transmission time difference between the front and rear ends of the ultra-long long conveyor 4 in existing technology, enabling synchronous reciprocating feeding of long conveyors 4 (10 meters and above) and the pressing device 3, greatly improving the stability and processing accuracy of the equipment, and extending its service life.
[0032] As shown in Figure 6, in actual processing, there are two or more drive shafts 501. In this embodiment, it is preferred that there are two drive shafts 501. Adjacent drive shafts 501 are connected by a universal coupling 502. The universal coupling 502 can effectively compensate for transmission problems caused by different shaft and angle deviations of the drive shafts 501, ensuring stable power transmission and avoiding transmission problems or component damage due to installation errors between drive shafts 501. One or both ends of the drive shaft 501 are connected to bearing seats 503. The bearing seats 503 are fixedly connected to the base assembly 1. The bearing seats 503 provide stable support for the drive shaft 501, reducing vibration of the drive shaft 501 during rotation, thereby improving transmission accuracy.
[0033] A gear 505 is fixedly connected to the drive shaft 501 near the end of the pressing device 3, and a gear 504 is fixedly connected to the drive shaft 501 near the tail of the long conveyor 4. Gear 505 and gear 504 are the same size. That is, the gear mechanism includes gear 505 and gear 504, which ensures that the pressing device 3 and the long conveyor 4 can move at the same speed when the drive shaft 501 rotates, achieving precise synchronous movement.
[0034] As shown in Figure 5, the pressing device 3 includes a pressing frame 301. A rack 303, meshing with gear 505, is fixedly connected to the lower end of the pressing frame 301 near the long timber conveyor 4. A rack 403, meshing with gear 504, is fixedly connected to the lower part of the long timber conveyor 4. Thus, rack 303 and rack 403 form a rack mechanism. When the drive shaft 501 rotates, the corresponding gears 505 and 504 rotate synchronously. Through meshing with rack 303, they drive the pressing frame 301 to move. Simultaneously, gear 504 meshes with rack 403, driving the long timber conveyor 4 to move synchronously. This achieves the reciprocating sliding of the pressing device 3 and the long timber conveyor 4 on the base assembly 1. The pressing device 3 applies stable pressure to the long timber throughout the planing process.
[0035] The bottom of the long material conveyor 4 is fixedly connected to multiple sets of support legs, and the bottom of the support legs is equipped with sliding components. The bottom of the pressing frame 301 is also equipped with sliding components, as shown in Figure 6. The base assembly includes a support base 101, on which multiple sets of parallel guide rails 102 are fixedly connected, each corresponding to the pressing frame 301 and the support legs. The sliding components slide in cooperation with the guide rails 102. The sliding components can be sliding blocks, and the cooperation between the sliding blocks and the guide rails 102 can provide relatively stable sliding support, which is suitable for occasions with high precision requirements. The sliding components can also be rollers. The rolling friction of rollers is small, which can make the sliding of the long material conveyor 4 and the pressing device 3 smoother, reduce power loss, and improve the operating efficiency of the device.
[0036] In this embodiment, since the equipment is relatively large, the sliding component is preferably a roller. That is, at least two rollers 302 that cooperate with the guide rail 102 are rotatably connected to the bottom of the pressure frame 301. Each support leg is rotatably connected to the bottom of a roller 401 that cooperates with the guide rail 102. A fixed frame 402 is fixedly connected to the support leg at the end of the equipment. A rack 403 is fixedly set on the fixed frame 402. This structure is more reasonable. While not interfering with the rotation of the rollers 401, it is easier for the gear 504 to mesh with the rack 403, and maintenance is more convenient.
[0037] The length direction of the guide rail 102 is perpendicular to the conveying direction of the long material conveyor 4, providing precise guidance for the reciprocating sliding of the long material conveyor 4 and the pressing device 3. The drive shaft 501 passes through the support base 101 or the guide rail 102, or both, and the upper end face of the guide rail 102 is higher than the upper end face of the drive shaft 501. This ensures the normal rotation of the drive shaft 501 while avoiding interference with the sliding of the long material conveyor 4 and the pressing device 3.
[0038] As shown in Figures 3 and 4, a planing assembly 2 is provided at the front end of the pressing device 3. The planing assembly 2 includes a planing frame 201. During installation, both the planing frame 201 and the support base 101 are fixedly connected to the ground. A planing cutter disc 202 for planing blades is rotatably connected to the planing frame 201. The planing assembly 2 is arranged opposite to the pressing device 3. A telescopic mechanism 206 for driving the pressing device 3 to move is provided between the planing frame 201 on the planing assembly 2 and the pressing frame 301 on the pressing device 3. The telescopic mechanism 206 is preferably a hydraulic cylinder. A rotating seat 1 205 is fixedly connected to one end of the planing frame 201. A rotating seat 208 is fixedly connected to the end of the pressing frame 301 away from the rotating seat 1 205. The telescopic end of the telescopic mechanism 206 is rotatably connected to the rotating seat 208 on the pressing device 3. The other end of the telescopic mechanism 206 is rotatably connected to the rotating seat 1 205 on the planing assembly 2. The telescopic mechanism 206 can precisely control the moving distance and speed of the pressure device 3 according to the requirements of the planer blade, thereby further improving the accuracy and quality of long material planing.
[0039] At least one set of guide shafts 203 are fixedly connected to the planing frame 201 of the planing assembly 2. In this embodiment, there are two sets of guide shafts 203, which are respectively fixedly installed at the upper and lower ends of the telescopic mechanism 206. The axial direction of the guide shafts 203 is parallel to the moving direction of the pressing device 3. A linear bearing 207 that slides with the guide shafts 203 is fixedly connected to the pressing device 3. The cooperation between the guide shafts 203 and the linear bearings 207 provides additional guidance and support for the movement of the pressing device 3, enhances the stability of the pressing device 3 during the movement, reduces shaking and deviation, ensures that the long material is always in the correct position during the planing process, and improves the stability of the equipment operation.
[0040] In use, the long timber is first placed on the chain plate of the long timber conveyor 4. The long timber conveyor 4 is started, and the chain plate begins to rotate, driving the long timber to be conveyed along the length of the long timber conveyor 4 and the base assembly 1. When the long timber is conveyed to the appropriate position, the long timber conveyor 4 stops conveying, and at the same time, the pressing device 3 presses the long timber.
[0041] At this time, the power mechanism and telescopic mechanism 206 of the planing cutter head 202 are activated, and the planing cutter head 202 begins to rotate to plan the long timber. The retraction end of the telescopic mechanism 206 retracts, causing the pressure frame 301 on the pressure device 3 to move. Gear 1 505 meshes with rack 1 303 on the pressure frame 301, driving the drive shaft 501 to rotate. The drive shaft 501 drives gear 2 504 located at the end of the equipment to rotate synchronously. Gear 2 504 meshes with rack 2 403 on the long timber conveyor 4, pushing the long timber conveyor 4 to move synchronously. Thus, the pressure device 3 and the long timber conveyor 4 move synchronously towards the planing assembly 2 along the width direction of the base assembly 1, and the planing cutter head 202 plans the long timber.
[0042] During the movement, the telescopic mechanism 206 precisely controls the moving speed and distance of the pressing device 3 by extending and retracting according to the preset planing requirements. At the same time, the guide shaft 203 and the linear bearing 207 cooperate to provide stable guidance and support for the movement of the pressing device 3, ensuring that the pressing device 3 moves smoothly and that the long timber remains stable throughout the planing process.
[0043] After the planing is completed, the telescopic mechanism 206 drives the pressing device 3 and the long timber conveyor 4 to move in the opposite direction and return to the initial position. The long timber conveyor 4 starts again and continues to convey long timber forward. This cycle is repeated to complete the continuous planing work.
[0044] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A reciprocating synchronous feeding device for a chipper, comprising a base assembly (1), on which a long material conveyor (4) capable of reciprocating movement and a pressing device (3) are movably connected, the pressing device (3) being fixedly disposed at one end of the long material conveyor (4), the conveying direction of the long material conveyor (4) being perpendicular to the moving direction of the long material conveyor (4) and the pressing device (3), characterized in that: The base assembly (1) is rotatably connected to a reciprocating transmission mechanism (5) for driving the pressing device (3) and the long material conveyor (4) to move synchronously; the reciprocating transmission mechanism (5) includes at least one transmission shaft (501), and gear mechanisms are fixedly connected to the transmission shafts (501) at both ends of the reciprocating transmission mechanism (5), and rack mechanisms that mesh with the gear mechanisms are fixedly connected to the pressing device (3) and the long material conveyor (4).
2. The feeding reciprocating synchronous device for a chipper according to claim 1, characterized in that: There are two or more drive shafts (501), and adjacent drive shafts (501) are connected by universal couplings (502). One or both ends of the drive shaft (501) are provided with bearing seats (503), and the bearing seats (503) are fixedly connected to the base assembly (1).
3. The feeding reciprocating synchronous device for a chipper according to claim 2, characterized in that: Gear 1 (505) is fixedly connected to the drive shaft (501) near the end of the pressing device (3), and gear 2 (504) is fixedly connected to the drive shaft (501) near the tail of the long material conveyor (4). Gear 1 (505) and gear 2 (504) are the same size.
4. The feeding reciprocating synchronous device for a chipper according to claim 3, characterized in that: The pressing device (3) includes a pressing frame (301), and a rack (303) that meshes with a gear (505) is fixedly connected to the lower end of the pressing frame (301) near the side of the long material conveyor (4). A rack (403) that meshes with a gear (504) is fixedly connected to the lower part of the long material conveyor (4).
5. The flaking machine feed shuttle synchronization apparatus of claim 1, wherein: The base assembly includes a support base (101), on which multiple sets of parallel guide rails (102) are fixedly connected. The length direction of the guide rails (102) is perpendicular to the conveying direction of the long material conveyor (4). The drive shaft (501) passes through the support base (101) and / or the guide rails (102), and the upper end face of the guide rails (102) is higher than the upper end face of the drive shaft (501).
6. The feeding reciprocating synchronous device for a chipper according to claim 5, characterized in that: The bottom of the pressing device (3) and the long material conveyor (4) are respectively provided with sliding components that cooperate with the guide rail (102).
7. The flaking machine feed shuttle synchronization apparatus of claim 6, wherein: The sliding component is a sliding block.
8. The feeding reciprocating synchronous device for a chipper according to claim 6, characterized in that: The sliding component is a roller.
9. The flaking machine feed shuttle synchronization apparatus of any one of claims 1-8, wherein: It also includes a planing assembly (2), which is arranged opposite to the pressing device (3). A telescopic mechanism (206) for driving the pressing device (3) to move is provided between the planing assembly (2) and the pressing device (3). The telescopic end of the telescopic mechanism (206) is rotatably connected to the pressing device (3), and the other end of the telescopic mechanism (206) is rotatably connected to the planing assembly (2).
10. The feeding reciprocating synchronous device for a shaving machine according to claim 9, characterized in that: At least one set of guide shafts (203) are fixedly connected to the planing assembly (2). The axial direction of the guide shafts (203) is parallel to the moving direction of the pressure device (3). A linear bearing (207) that slides with the guide shafts (203) is fixedly connected to the pressure device (3).
Citation Information
Patent Citations
Long material pushing, cutting and feeding device
CN222038911U