Auxiliary compression roller assembly of wood board cutting machine
By introducing a cleaning brush and air pump system into the pressure roller assembly of the wood board saw, the problems of reduced clamping capacity and cutting accuracy caused by sawdust accumulation have been solved, achieving higher processing accuracy and equipment stability, while reducing energy consumption and maintenance costs.
Patent Information
- Application Number
- CN202520084641.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The pressure roller assembly of a traditional wood panel saw is prone to accumulating wood chips and impurities during the cutting process, which leads to a decrease in clamping capacity, a reduction in cutting accuracy, an increase in energy consumption, and accelerated equipment wear.
Design an auxiliary pressure roller assembly for a wood panel saw, equipped with a cleaning brush and an air pump system. The cleaning brush scrapes away surface debris as the pressure roller rotates, and the air pump system sucks in and stores fine debris to ensure the surface of the pressure roller is clean.
It improves the precision and quality of wood cutting, reduces energy consumption and equipment wear, enhances the safety and comfort of the processing environment, and simplifies maintenance.
Smart Images
Figure CN223834707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wood processing technology, and in particular to an auxiliary pressure roller assembly for a wood cutting machine. Background Technology
[0002] In the application of panel saws, ensuring the stability and processing accuracy of wood during the cutting process is crucial. Traditional panel saws are typically equipped with pressure roller assemblies to fix and guide the wood through the cutting area. However, in actual operation, sawdust and other impurities generated during cutting easily adhere to the surface of the pressure rollers, leading to the following problems:
[0003] 1. The accumulation of sawdust forms a separating layer between the roller surface and the wood. This separating layer reduces the effective contact area and coefficient of friction between the two, thereby weakening the roller's ability to hold the wood.
[0004] As a result, wood may slip, shift, or warp during the cutting process. These problems will directly affect the cutting accuracy and may lead to finished products that do not meet specifications, increasing the scrap rate.
[0005] 2. Over time, sawdust and other impurities will not only adhere to the surface of the roller, but may also become embedded in its material, especially for roller surfaces with fine textures or pores.
[0006] This situation increases the frictional resistance between the pressure roller and the wood, as well as between the pressure roller and other mechanical components (such as guide rails and supports). The extra friction leads to higher energy consumption, while accelerating the wear rate of the pressure roller and related components, ultimately shortening the service life of the entire equipment and increasing maintenance costs. Utility Model Content
[0007] To overcome the aforementioned shortcomings, the technical problem of this utility model is to provide an auxiliary pressure roller assembly for a wood board cutting machine.
[0008] The technical solution is as follows: An auxiliary pressure roller assembly for a wood board saw includes a mounting base, an electric push rod, a support base, a motor, and pressure rollers. Two mounting bases are symmetrically mounted on the saw, and electric push rods are symmetrically mounted on each mounting base. Support bases are connected to the telescopic rods of the electric push rods. A motor is mounted on the top of each rear support base, and pressure rollers are connected to the output shafts of the motors. The front ends of the two pressure rollers are rotatably connected to the corresponding front support bases. The electric push rods and motors are electrically connected to the control system of the saw. The pressure roller assembly also includes a support frame, a cleaning brush, and compression springs. Support frames are connected to each front support base, and cleaning brushes are slidably connected to each support frame. Multiple compression springs are connected between the cleaning brushes and the support frames, and the cleaning brushes are in close contact with the wall surface of the pressure rollers.
[0009] Optionally, it also includes a frame, an air extraction pipe, and an air extraction assembly. The top outer sides of the two rear support bases are connected to the frame. The frame is close to the side of the pressure roller and its height is lower than the cleaning brush. The outer side of the frame is connected to the air extraction pipe. The air extraction pipe is provided with multiple air inlets spaced apart. The air inlets penetrate the frame and are connected to a screen for blocking large impurities. The rear support base is provided with an air extraction assembly.
[0010] Optionally, the air extraction assembly includes a cylinder, an air pump, and a collection frame. An air pump is installed on the support base on the rear side. The air pump pipe is connected to and communicates with the cylinder. The cylinder is connected to and communicates with the air extraction pipe on the same side. A collection frame is snapped into the cylinder. The front and rear ends of the collection frame are open structures and communicate with the air extraction pipe and the air pump pipe, respectively.
[0011] Optionally, the cylinder has a semi-ring structure, while the collection frame is a complete hollow cylinder, with the collection frame nested inside the cylinder.
[0012] Optionally, it also includes a filter screen, which is connected to the port at the rear of the collection box.
[0013] Optionally, it also includes a sliding frame and a return spring. The sliding frame is slidably connected to the rear side of the suction pipe. The sliding frame covers the collection frame and the cylinder. A return spring is connected between the sliding frame and the cylinder. The return spring is sleeved on the outside of the suction pipe.
[0014] The present invention has the following advantages: 1. The device is equipped with a cleaning brush that rubs against the pressure roller, which scrapes away wood chips and other impurities attached to the surface in real time during the rotation of the pressure roller. This not only ensures the cleanliness of the pressure roller surface, but also effectively prevents the wood board from being unstable or the cutting deviation caused by the accumulation of debris, thereby significantly improving the processing accuracy and product quality.
[0015] 2. The air pump system draws the fine debris scraped off by the cleaning brush into the cylinder for storage, effectively preventing these debris from being redistributed to the work area, ensuring a clean processing environment, reducing the impact on subsequent processing, and lowering the risk of operators being exposed to harmful dust, thus improving the safety and comfort of the working environment.
[0016] 3. The collection box adopts a detachable design, which makes it easy to clean the collected debris regularly and simplifies daily maintenance. In addition, the collection box is fixed by a sliding frame to ensure that there will be no shaking during use, which enhances the stability and reliability of the system. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a three-dimensional structural diagram of the support base, motor, and pressure roller of this utility model.
[0019] Figure 3 This is a cross-sectional view of the cylinder, collection frame, and return spring components of this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the support frame, cleaning brush, and compression spring components of this utility model.
[0021] Figure 5 This is a cross-sectional view of the cleaning brush, compression spring, and support frame components of this utility model.
[0022] The components in the attached diagram are labeled as follows: 1-Mounting base, 2-Electric push rod, 3-Support base, 4-Motor, 5-Pressure roller, 6-Frame, 7-Extraction pipe, 8-Air inlet, 9-Cylinder, 10-Air pump, 11-Collection frame, 12-Filter screen, 13-Sliding frame, 14-Return spring, 15-Support frame, 16-Cleaning brush, 17-Compression spring. Detailed Implementation
[0023] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0024] Example: An auxiliary pressure roller assembly for a wood panel saw, such as Figure 1 and Figure 5 As shown, the assembly includes a mounting base 1, an electric push rod 2, a support base 3, a motor 4, a pressure roller 5, a support frame 15, a cleaning brush 16, and a compression spring 17. Two mounting bases 1 are symmetrically mounted on the cutting machine, ensuring the entire assembly is positioned above the conveyor belt. Electric push rods 2 are symmetrically mounted on each mounting base 1, and support bases 3 are connected to the telescopic rods of the electric push rods 2. A motor 4 is mounted on the top of each rear support base 3, and a pressure roller 5 is connected to the output shaft of each motor 4. The front ends of the two pressure rollers 5 are rotatably connected to the corresponding front support base 3. Both the electric push rods 2 and the motor 4 are electrically connected to the control system of the cutting machine. Support frames 15 are bolted to each front support base 3, and cleaning brushes 16 are slidably connected to each support frame 15. Figure 5 As shown, multiple compression springs 17 are connected between the cleaning brush 16 and the support frame 15. The cleaning brush 16 is in close contact with the wall of the pressure roller 5. When the pressure roller 5 rotates, it rubs against the cleaning brush 16, and the cleaning brush 16 can scrape off some debris and impurities remaining on the surface of the pressure roller 5.
[0025] This device is installed on the wood board cutting machine, located above the conveyor belt, and is responsible for providing stable support during the wood board movement and processing. The system is electrically connected to the cutting machine's control system via an electric push rod 2 and a motor 4, enabling automated operation. The control system can precisely control the movement of the electric push rod 2's telescopic rod and the start / stop of the motor 4, thereby adjusting the position and pressure of the pressure roller 5. Before processing begins, the control system adjusts the length of the electric push rod 2's telescopic rod according to preset parameters or operator input, placing the pressure roller 5 at an appropriate height to accommodate different thicknesses and types of wood. When the wood board enters the cutting area, the control system instructs the electric push rod 2 to shorten, driving the support base 3, motor 4, and pressure roller 5 downwards until the pressure roller 5 gently contacts and fixes the wood board surface, ensuring its stability during cutting. Simultaneously, the control system starts the motor 4, driving the pressure roller 5 to rotate, providing additional traction to the wood board, helping it pass smoothly through the machine, improving processing efficiency and quality. To keep the surface of the pressure roller 5 clean and prevent debris from affecting the wood board's fixing effect, a cleaning brush 16 is specially designed to rub against the pressure roller 5. When the device is not running, the cleaning brush 16 is in contact with the compressed spring 17. The cleaning brush 16 is already in close contact with the surface of the pressure roller 5. At this time, there is a slight contact pressure between the two, but no relative movement. When the wood panel saw starts running, the pressure roller 5 rotates accordingly. Since the cleaning brush 16 is fixed (relative to the support frame 15), as the pressure roller 5 rotates, the surface of the pressure roller 5 will have relative movement with the cleaning brush 16, that is, frictional contact. As the pressure roller 5 rotates continuously, the debris or impurities on its surface will be scraped off by the bristles of the cleaning brush 16. The softness and elasticity of the bristles allow it to adapt to the irregularity of the surface of the pressure roller 5, ensuring that even if there are micro-debris or impurities, the cleaning brush 16 will scrape them off. Small protrusions or depressions can also be effectively cleaned. The compression spring 17 continuously provides an inward thrust to the cleaning brush 16. This force helps maintain the appropriate contact pressure between the cleaning brush 16 and the pressure roller 5. If there are protrusions or changes in shape on the surface of the pressure roller 5, the cleaning brush 16 can also slide along the support frame 15 within a certain range to follow the contour changes of the pressure roller 5. At the same time, the compression spring 17 will automatically adjust the tension to maintain stable contact pressure. The debris and impurities scraped off by the cleaning brush 16 will fall off naturally under the action of gravity, preventing them from adhering to the pressure roller 5 again.
[0026] The control system is generally a numerical control system or a PLC control system. Specifically, this application uses a PLC control system, which can control the movement of electric push rods and motors through preset logic programs to achieve automated processing. The PLC control system has the advantages of high reliability, good stability and simple programming.
[0027] like Figures 1-3As shown, it also includes a frame 6, an air extraction pipe 7, and an air extraction assembly. The two rear support seats 3 are connected to the top outer sides of the frame 6. The frame 6 is close to the side of the pressure roller 5 and its height is lower than the cleaning brush 16. The impurities cleaned by the cleaning brush 16 will fall into the frame 6. The outer side of the frame 6 is connected to the air extraction pipe 7. Multiple air inlets 8 are spaced apart on the air extraction pipe 7. The air inlets 8 penetrate the frame 6 and are connected to the screens for blocking large impurities. The rear support seat 3 is equipped with an air extraction assembly.
[0028] like Figures 1-3 As shown, the air extraction assembly includes a cylinder 9, an air pump 10, a collection frame 11, and a filter screen 12. The air pump 10 is bolted to the support base 3 on the rear side. The cylinder 9 is connected to the pipe of the air pump 10. The cylinder 9 is connected to the air extraction pipe 7 on the same side and is in communication with it. The collection frame 11 is snapped into the cylinder 9. The cylinder 9 has a semi-ring structure, and the collection frame 11 is a complete hollow cylinder. The collection frame 11 is fitted inside the cylinder 9. The front and rear ends of the collection frame 11 have an open structure and are connected to the air extraction pipe 7 and the air inlet of the air pump 10, respectively. Impurities extracted by the air extraction pipe 7 will enter the collection frame 11 through the cylinder 9 for subsequent removal and cleaning. A filter screen 12 is welded to the rear end of the collection frame 11 to block impurities in the collection frame 11 and prevent impurities from entering the air pump 10 and causing blockage.
[0029] Specifically, the air pump 10 is used to generate sufficient suction to draw dust and debris from the surface of the pressure roller 5 into the collection frame 11. The air pump used for dust collection can generally be an electric air pump or a vortex air pump. In this application, an electric air pump is selected. Electric air pumps use an electric motor to drive an impeller or piston to rotate, thereby generating airflow. They have a relatively simple structure, are easy to maintain, and have low cost.
[0030] The impurities scraped off by the cleaning brush 16 fall into the frame 6. Equipped with an air pump 10 system, air can be drawn out from inside the frame 6. Fine debris is sucked into the collection frame 11 inside the cylinder 9 through the air inlet 8 and the air extraction pipe 7, preventing it from being redistributed to the working area. The screen at the air inlet 8 prevents larger impurities from entering and clogging the pipes, ensuring the long-term stable operation of the system. After the subsequent work is completed, the collection frame 11 can be removed and the internal debris can be cleaned.
[0031] like Figures 2-3As shown, it also includes a sliding frame 13 and a return spring 14. The sliding frame 13 is slidably connected to the rear side of the suction pipe 7. The sliding frame 13 covers the collection frame 11 and the cylinder 9, ensuring that the collection frame 11 cannot detach from the inside of the cylinder 9. The return spring 14 is connected between the sliding frame 13 and the cylinder 9. The return spring 14 is covered on the outside of the suction pipe 7. When the sliding frame 13 is pulled forward, the return spring 14 is stretched accordingly. The sliding frame 13 is no longer covering the collection frame 11 and the cylinder 9, so the collection frame 11 can be pulled upward to facilitate the cleaning of debris and impurities inside. After cleaning, the collection frame 11 is reset. When the sliding frame 13 is released, the return spring 14 rebounds and resets, causing the sliding frame 13 to move backward, thereby covering the collection frame 11 and the cylinder 9, ensuring that the collection frame 11 is in a stable state.
[0032] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.
Claims
1. An auxiliary pressure roller assembly for a wood board saw, comprising a mounting base (1), an electric push rod (2), a support base (3), a motor (4), and a pressure roller (5), wherein two mounting bases (1) are symmetrically mounted on the saw, and electric push rods (2) are symmetrically mounted on each mounting base (1). Support bases (3) are connected to the telescopic rods of the electric push rods (2). A motor (4) is mounted on the top of each rear support base (3), and a pressure roller (5) is connected to the output shaft of each motor (4). The front ends of the two pressure rollers (5) are rotatably connected to the corresponding front support bases (3). The electric push rods (2) and the motor (4) are electrically connected to the control system of the saw, characterized in that: The pressure roller assembly also includes a support frame (15), a cleaning brush (16) and a compression spring (17). The support frame (15) is connected to the support seat (3) on the front side. The cleaning brush (16) is slidably connected to the support frame (15). Multiple compression springs (17) are connected between the cleaning brush (16) and the support frame (15). The cleaning brush (16) is in close contact with the wall of the pressure roller (5).
2. The auxiliary pressure roller assembly of a wood board saw according to claim 1, characterized in that: It also includes a frame (6), an air extraction pipe (7) and an air extraction assembly. The top outer sides of the two rear support seats (3) are connected to the frame (6). The frame (6) is close to the side of the pressure roller (5) and its height is lower than that of the cleaning brush (16). The outer side of the frame (6) is connected to the air extraction pipe (7). Multiple air inlets (8) are spaced apart on the air extraction pipe (7). The air inlets (8) penetrate the frame (6) and are connected to a screen for blocking large impurities. The rear support seat (3) is equipped with an air extraction assembly.
3. The auxiliary pressure roller assembly of a wood board saw according to claim 2, characterized in that: The air extraction assembly includes a cylinder (9), an air pump (10), and a collection frame (11). An air pump (10) is installed on the support base (3) on the rear side. The cylinder (9) is connected to and communicates with the pipe of the air pump (10). The cylinder (9) is connected to and communicates with the air extraction pipe (7) on the same side. A collection frame (11) is snapped into the cylinder (9). The front and rear ends of the collection frame (11) are open and communicate with the air extraction pipe (7) and the air pump (10) pipe respectively.
4. The auxiliary pressure roller assembly of a wood board saw according to claim 3, characterized in that: The cylinder (9) has a semi-ring structure, while the collection frame (11) is a complete hollow cylinder, which is fitted inside the cylinder (9).
5. The auxiliary pressure roller assembly of a wood board saw according to claim 4, characterized in that: It also includes a filter screen (12), and a filter screen (12) for blocking impurities is connected to the rear port of the collection box (11).
6. The auxiliary pressure roller assembly of a wood board saw according to claim 5, characterized in that: It also includes a sliding frame (13) and a return spring (14). The sliding frame (13) is slidably connected to the rear side of the suction pipe (7). The sliding frame (13) covers the collection frame (11) and the cylinder (9). A return spring (14) is connected between the sliding frame (13) and the cylinder (9). The return spring (14) is sleeved on the outside of the suction pipe (7).