A grinding device for strip flooring

Abstract

This invention discloses a grinding device for processing strip flooring, relating to the technical field of flooring processing equipment. The invention includes a grinding chamber mounted on a support base, and strip flooring to be processed placed inside the grinding chamber. It also includes a grinding unit disposed inside the grinding chamber, comprising a rough grinding component, a spacing adjustment component, a fine grinding component, a power component, and a chip removal component. The advantages are: through the adaptive coordination of spacing adjustment and pressure sensing, the grinding position and pressure can be adjusted in real time, ensuring a stable and uniform grinding process, reducing flooring deformation, edge chipping, and missed grinding, thus improving processing accuracy and consistency. Furthermore, the chip removal structure, which removes dust while grinding, can promptly remove wood chips, preventing dust from interfering with the grinding effect, ensuring a continuous and reliable grinding process, and significantly improving the overall processing quality and production efficiency of the strip flooring.

Description

Technical Field

[0001] This invention relates to the field of flooring processing equipment technology, and more particularly to a grinding device for processing strip flooring. Background Technology

[0002] Strip flooring is a commonly used floor decoration material in home and commercial decoration. It is widely used in the field of indoor floor laying. Its surface flatness, side regularity and appearance smoothness directly determine the quality of the finished flooring. In the production process of strip flooring, grinding is the core process to achieve flooring thickness determination, leveling, side trimming and surface finishing. In industrial production, special grinding equipment is usually used to complete the automated grinding process of strip flooring.

[0003] For example, a grinding device for wood flooring processing, disclosed in CN114654324B, includes a mounting plate. A fixed seat is provided on the outer wall of the mounting plate. A telescopic component is provided at each of the four corners of the outer wall of the mounting plate. A connecting plate is provided at the telescopic end of the telescopic component. A lifting seat is provided on the side wall of the connecting plate. The end of the lifting seat fits into the inner wall of the fixed seat. A driving component is provided on the inner wall of the fixed seat. A placement plate is provided at the driving end of the driving component. A fixed plate is provided on the inner wall of the lifting seat. An annular groove is formed on the outer wall of the fixed plate. The middle position of the fixed plate is fixedly connected to the inner wall of the lifting seat by a fixed rod.

[0004] The cutting process of strip flooring before grinding is hampered by low cutting precision, making it impossible to cut strips with the required thickness and width. Furthermore, existing strip flooring grinding devices often have fixed grinding spacing and pressure settings, resulting in insufficient grinding adjustment capabilities. This makes it impossible to adaptively adjust the grinding according to the actual size and processing status of the strip flooring, which can easily lead to problems such as flooring deformation, edge chipping, and surface burning due to excessive grinding pressure, or missed grinding and insufficient grinding due to insufficient pressure. In addition, the chip removal structure of some devices can only collect grinding waste chips and cannot clean the wood chips on the surface of the strip flooring in real time during the grinding process, which can easily cause wood chip residue to interfere with the grinding process.

[0005] For example, the aforementioned prior art lacks an adaptive adjustment mechanism for grinding spacing and pressure, making it impossible to adjust the grinding position in real time according to the state of the strip floor during grinding. Its chip collection mechanism also cannot remove wood chips from the grinding area in real time during grinding, which can easily cause wood chips to get stuck between the grinding disc and the strip floor, affecting the grinding effect and thus having certain limitations.

[0006] Therefore, there is an urgent need to design a grinding equipment for processing strip flooring to solve the above problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a grinding device for processing strip flooring, which solves the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for processing strip flooring, comprising a grinding chamber mounted on a support base, and a strip flooring to be processed placed inside the grinding chamber, and further comprising: The grinding unit, located inside the grinding chamber, includes a rough grinding assembly, a spacing adjustment assembly, a fine grinding assembly, a power assembly, and a chip removal assembly; The coarse grinding assembly includes two hollow grinding rollers for coarse grinding the upper and lower surfaces of the strip flooring, and two side grinding rollers for coarse grinding the two sides of the strip flooring. The spacing adjustment assembly is used to adjust the spacing between the two hollow grinding rollers and the two side grinding rollers. The fine grinding assembly includes two hollow grinding discs for fine grinding the upper and lower surfaces of the strip flooring, and two side grinding discs for fine grinding the two sides of the strip flooring. The chip removal assembly is used to remove the wood chips generated during grinding. A guide assembly, located on the grinding chamber, contains two guide plates for guiding the strip floor into the interior of the grinding chamber.

[0009] Preferably, a controller is fixedly installed on the grinding chamber, a PLC controller is fixedly connected to the controller, a control panel is fixedly connected to the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel uses a PLC controller to control the start-up and operation status of the grinding unit.

[0010] Preferably, the rough grinding assembly includes a first adjusting frame fixedly installed inside the grinding chamber, two hollow grinding rollers being rotatably connected to the first adjusting frame, and a second adjusting frame provided inside the grinding chamber, two side grinding rollers being rotatably connected to the second adjusting frame.

[0011] Preferably, the spacing adjustment assembly includes a unidirectional electric telescopic rod rotatably connected to the first adjustment frame, the unidirectional electric telescopic rod being used to adjust the spacing between two hollow grinding rollers on the first adjustment frame, and a bidirectional electric telescopic rod being fixedly installed on the second adjustment frame, the bidirectional electric telescopic rod being used to adjust the spacing between two side grinding rollers on the second adjustment frame; Both the first and second adjustment frames are equipped with support frames, and pressure sensors are fixedly installed on both support frames. The two pressure sensors are used to detect the pressure of the two hollow grinding rollers and the two side grinding rollers on the strip floor. Both pressure sensors are rotatably connected to transmission wheels. The contact positions of the two transmission wheels with the surface of the strip floor and the contact positions of the hollow grinding rollers and the side grinding rollers with the strip floor are located on the same plane. Both the first and second adjustment frames are equipped with a transmission mechanism for transmitting power.

[0012] Preferably, the transmission mechanism includes a second helical gear fixedly mounted on a one-way electric telescopic rod, a third helical gear fixedly mounted on the telescopic end of the one-way electric telescopic rod, and a first helical gear fixedly mounted on each of the two hollow grinding rollers. The second and third helical gears mesh with the corresponding first helical gears. Two transmission frames are fixedly installed on the second adjusting frame. The grinding chamber has a sliding groove for sliding and limiting the two transmission frames. A bidirectional limiting telescopic rod is rotatably connected to both transmission frames. A worm gear is fixedly installed at both telescopic ends of the bidirectional limiting telescopic rod. A first transmission rod is fixedly installed on each of the two side grinding rollers. A worm wheel that meshes with the corresponding worm gear is fixedly installed at one end of each of the two first transmission rods. A transmission telescopic rod is fixedly installed at one telescopic end of the bidirectional limiting telescopic rod.

[0013] Preferably, the fine grinding assembly includes a fixed frame fixedly installed inside the grinding chamber, two metal tubes fixedly installed on the fixed frame, two hollow grinding discs rotatably connected to the corresponding metal tubes, and two second transmission rods rotatably connected on the fixed frame, with side grinding discs fixedly installed on each of the two second transmission rods; A fifth helical gear is fixedly installed on each of the two side grinding discs, and a fourth helical gear that meshes with the fifth helical gear is fixedly installed on each of the two hollow grinding discs.

[0014] Preferably, the power assembly includes a transmission chamber fixedly installed on one side of the grinding chamber, a drive motor fixedly installed on one side of the transmission chamber, one of the second transmission rods passing through the grinding chamber and fixedly connected to the drive end of the drive motor, a third transmission rod rotatably connected inside the transmission chamber, and the third transmission rod passing through the grinding chamber and fixedly connected to one end of the transmission telescopic rod, and a fourth transmission rod rotatably connected to the first adjusting frame, one end of the fourth transmission rod passing into the transmission chamber, and the other end being fixedly connected to the hollow grinding roller located at the bottom; A first transmission belt is fitted between the second and third transmission rods, and a second transmission belt is fitted between the third and fourth transmission rods. The cooperation of the first and second transmission belts enables the second transmission rod to drive the third and fourth transmission rods to rotate synchronously. Preferably, the chip removal assembly includes a plurality of first suction holes formed on two hollow grinding rollers, a plurality of second suction holes formed on each of the two hollow grinding discs, a second conveying hose fixedly connected to one end of each of the two metal pipes, a first conveying hose rotatably connected to one end of each of the two hollow grinding rollers, a dust pump fixedly installed on the support base, one end of the first conveying hose passing through the grinding chamber and fixedly connected to the dust suction port of the dust pump, one end of the second conveying hose passing through the grinding chamber and fixedly connected to the dust suction port of the dust pump, and a dust collection hose fixedly connected between one side of the grinding chamber and the dust suction port of the dust pump. The grinding chamber is equipped with a dust blowing mechanism for blowing away dust and debris from the surface of the strip floor.

[0015] Preferably, the dust blowing mechanism includes two air inlet chambers fixedly installed inside the grinding chamber, and the air outlet of the air inlet chamber is a conical opening. Two inclined scrapers are fixedly installed at the discharge port of the grinding chamber, and the two inclined scrapers are located below the conical opening.

[0016] Preferably, the guiding assembly includes a conveyor frame fixedly installed inside the grinding chamber, with conveyor rollers rotatably connected to the conveyor frame. The conveyor rollers are used to convey the strip flooring to be processed to the grinding unit. Several spring telescopic rods are fixedly installed on both sides of the grinding chamber, and two guide plates are respectively fixedly installed on the corresponding spring telescopic rods.

[0017] This invention provides a grinding device for processing strip flooring. It has the following advantages: 1. When grinding strip flooring, this grinding device performs graded grinding on the strip flooring through coarse grinding and fine grinding components. The coarse grinding process can first correct the thickness and width deviations caused by the previous cutting process of the strip flooring, complete the thickness setting and side regularization of the flooring, and avoid problems such as obvious grinding marks and rough surface caused by a single grinding method, thereby improving the grinding quality and finished appearance of the strip flooring.

[0018] 2. When grinding strip flooring, this grinding device uses a spacing adjustment component in conjunction with a pressure sensor to achieve adaptive adjustment of the grinding spacing and grinding pressure. This allows for real-time adjustment of the working position and clamping force of the hollow grinding roller and the side grinding roller based on the actual size and processing status of the strip flooring after cutting. This makes the grinding process more stable and uniform, reducing flooring deformation, chipping, and missed grinding caused by excessive or insufficient grinding force, and improving grinding accuracy and processing consistency.

[0019] 3. When this grinding device is used to process and grind strip flooring, the chip removal component can directly remove the wood chips generated during grinding, thereby achieving dust removal while grinding. This prevents wood chips from accumulating on the grinding surface and affecting the grinding effect, effectively ensuring the continuous and stable grinding process and improving the reliability and continuity of grinding operations.

[0020] In summary, by combining spacing adjustment with pressure sensing for adaptive adjustment, the grinding position and pressure can be adjusted in real time, making the grinding process stable and uniform, reducing floor deformation, edge chipping, and missed grinding, and improving processing accuracy and consistency. Furthermore, the chip removal structure that removes dust while grinding can remove wood chips in a timely manner, avoiding dust interference with the grinding effect, ensuring a continuous and reliable grinding process, and significantly improving the overall processing quality and production efficiency of strip flooring.

[0021] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a grinding device for processing strip flooring proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 1 A schematic diagram of the structure with the support base removed; Figure 4 for Figure 3 Schematic diagram of the internal structure of the intermediate grinding chamber; Figure 5 for Figure 4 A schematic diagram of the structure after rotation at a certain angle; Figure 6 for Figure 5 A schematic diagram of the structure with the guide component removed; Figure 7 for Figure 6 A schematic diagram of the structure of the first adjusting frame; Figure 8 for Figure 7 A schematic diagram of the structure after rotation at a certain angle; Figure 9 for Figure 7 Enlarged view of the node at point A in the middle; Figure 10 for Figure 7 A cross-sectional view of a hollow grinding roller; Figure 11 for Figure 6 Schematic diagram of the structure of the second adjustment frame; Figure 12 for Figure 11 Enlarged view of the nodes in section B; Figure 13 for Figure 16 Schematic diagram of the intermediate and fine grinding components; Figure 14 for Figure 13 Schematic diagram of the internal structure of a hollow grinding disc; Figure 15 for Figure 3 Schematic diagram of the internal structure of the central air intake chamber; Figure 16 for Figure 2 A schematic diagram of the internal structure of the transmission chamber.

[0023] In the diagram: 1. Support base; 2. Grinding chamber; 3. Controller; 4. Conveyor frame; 5. Spring telescopic rod; 6. Guide plate; 7. First adjusting frame; 8. Hollow grinding roller; 9. First helical gear; 10. One-way electric telescopic rod; 11. Second helical gear; 12. Third helical gear; 13. Fourth transmission rod; 14. Support frame; 15. Pressure sensor; 16. Transmission wheel; 17. Second adjusting frame; 18. Side grinding roller; 19. Two-way electric telescopic rod; 20. Transmission frame; 21. Two-way limit telescopic rod; 22. First transmission rod. 23. Rod; 24. Worm gear; 25. Worm; 26. Transmission telescopic rod; 27. Fixing frame; 28. Metal tube; 29. ​​Hollow grinding disc; 30. Fourth helical gear; 31. Second transmission rod; 32. Side grinding disc; 33. Fifth helical gear; 34. Air intake chamber; 35. Slanted scraper; 36. Transmission chamber; 37. Third transmission rod; 38. Drive motor; 39. Dust pump; 40. First conveying hose; 41. Second conveying hose; 42. First suction port; 43. Second suction port; 44. Strip floor; 45. Dust collection hose. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1: Refer to Figure 1 - Figure 6 A grinding device for processing strip flooring includes a grinding chamber 2 disposed on a support base 1, and a strip flooring 43 to be processed placed inside the grinding chamber 2; Support base 1 serves as the overall load-bearing foundation of the equipment. Its function is to provide stable and rigid installation support for components such as grinding chamber 2, thereby preventing structural shaking during equipment operation and ensuring the stability of grinding accuracy from the source. Grinding chamber 2 provides a closed cavity for the equipment's processing, which is used to isolate the entire grinding processing area, prevent wood chips from flying and injuring people during grinding, and prevent wood chips from overflowing and polluting the workshop environment.

[0026] This grinding device also includes: The grinding unit is located inside the grinding chamber 2 and includes a rough grinding assembly, a spacing adjustment assembly, a fine grinding assembly, a power assembly, and a chip removal assembly. The coarse grinding assembly includes two hollow grinding rollers 8 for coarse grinding of the upper and lower surfaces of the strip flooring 43, and two side grinding rollers 18 for coarse grinding of the two sides of the strip flooring 43. The spacing adjustment assembly is used to adjust the spacing between the two hollow grinding rollers 8 and the two side grinding rollers 18. The fine grinding assembly includes two hollow grinding discs 28 for fine grinding of the upper and lower surfaces of the strip flooring 43, and two side grinding discs 31 for fine grinding of the two sides of the strip flooring 43. The chip removal assembly is used to remove the wood chips generated during grinding. A controller 3 is fixedly installed on the grinding chamber 2. A PLC controller is fixedly connected to the controller 3. A control panel is fixedly connected to the PLC controller. The control panel and the PLC controller are electrically connected. The operator inputs control commands through the control panel, and the control panel transmits signals to the PLC controller to realize manual operation and control of the equipment. The control panel uses a PLC controller to control the start-up and running status of the grinding unit, enabling automated and coordinated operation of various functional modules. It is easy to operate, requires minimal operator intervention, and has a high degree of automation.

[0027] Example 2: Refer to Figure 7 - Figure 14 The technical difference between this embodiment and embodiment one is that the rough grinding assembly includes a first adjusting frame 7 fixedly installed inside the grinding chamber 2, and two hollow grinding rollers 8 are rotatably connected to the first adjusting frame 7. The hollow grinding rollers 8 are arranged symmetrically up and down and are used to perform synchronous rough grinding and thickness setting on the upper and lower surfaces of the strip floor 43, quickly remove the blank allowance, unevenness and other processing defects on the floor surface, improve processing efficiency, and at the same time provide a uniform base surface for the subsequent fine grinding process, reduce the fine grinding allowance and improve the surface quality of the finished product.

[0028] The grinding chamber 2 is equipped with a second adjusting frame 17. Two side grinding rollers 18 are rotatably connected to the second adjusting frame 17. The first adjusting frame 7 is divided into a first upper adjusting frame and a first lower adjusting frame. Two hollow grinding rollers 8 are rotatably connected to the first upper adjusting frame and the first lower adjusting frame, respectively. The second adjusting frame 17 is divided into a second left adjusting frame and a second right adjusting frame. Two side grinding rollers 18 are rotatably connected to the second left adjusting frame and the second right adjusting frame, respectively. The first adjustment frame 7 and the second adjustment frame 17 are used to provide installation space for the hollow grinding roller 8, the side grinding roller 18, etc., so as to realize simultaneous rough processing on four sides without the need for subsequent separate trimming process, which greatly shortens the processing flow.

[0029] In a further embodiment, the spacing adjustment assembly includes a one-way electric telescopic rod 10 rotatably connected to the first adjustment frame 7. The one-way electric telescopic rod 10 is used to adjust the spacing between the two hollow grinding rollers 8 on the first adjustment frame 7. A two-way electric telescopic rod 19 is fixedly installed on the second adjustment frame 17. The two-way electric telescopic rod 19 is used to adjust the spacing between the two side grinding rollers 18 on the second adjustment frame 17. The one-way electric telescopic rod 10 is the core adjustment component for the upper and lower grinding distance. Its bottom end is fixedly installed on the first lower adjustment frame, and its telescopic end is fixedly installed on the first upper adjustment frame. The one-way electric telescopic rod 10 drives the first upper adjustment frame to make precise lifting and lowering movements through its own extension and retraction, thereby adjusting the distance between the two hollow grinding rollers 8. The bidirectional electric telescopic rod 19 is the core adjustment component for the side grinding distance. Its two telescopic ends are fixedly installed with the second left adjustment frame and the second right adjustment frame, respectively. The bidirectional electric telescopic rod 19 drives the two side grinding rollers 18 to move synchronously in opposite directions through its bidirectional telescopic movement, thereby adjusting the distance between the two side grinding rollers 18. By using the one-way electric telescopic rod 10 and the two-way electric telescopic rod 19 for real-time fine-tuning during the processing, the slight errors in the thickness and width of the strip floor 43 are adapted to ensure that the thickness and width of the strip floor 43 meet the requirements.

[0030] Both the first adjustment frame 7 and the second adjustment frame 17 are equipped with support frames 14. Pressure sensors 15 are fixedly installed on both support frames 14. The two pressure sensors 15 are used to detect the pressure of the two hollow grinding rollers 8 and the two side grinding rollers 18 on the strip floor 43. The two pressure sensors 15 are rotatably connected to the transmission wheels 16. The contact positions of the two transmission wheels 16 with the surface of the strip floor 43 are on the same plane as the contact positions of the hollow grinding rollers 8, the side grinding rollers 18 and the strip floor 43. The support frame 14 provides a high-precision mounting position for the pressure sensor 15 and the transmission wheel 16, ensuring that the detection data of the pressure sensor 15 can truly and accurately reflect the actual grinding pressure of the corresponding hollow grinding roller 8 and side grinding roller 18 on the strip floor 43, thereby improving the accuracy and reliability of pressure detection. The drive wheel 16 rolls in contact with the surface of the strip floor 43, transmitting the changes in floor thickness and grinding pressure in real time to the pressure sensor 15 at the corresponding position. The pressure sensor 15 is used to collect the reaction force of the floor on the drive wheel 16 during the grinding process in real time, calculate the actual grinding pressure at the corresponding position, and feed the detection signal back to the PLC controller in real time. This realizes independent closed-loop monitoring of the grinding position, providing accurate data support for the adaptive adjustment of the spacing adjustment component, and avoiding problems such as floor deformation, edge chipping, and surface burning caused by excessive grinding pressure, or insufficient grinding caused by insufficient pressure.

[0031] In a further embodiment, both the first adjusting frame 7 and the second adjusting frame 17 are provided with a transmission mechanism for transmitting power. The transmission mechanism includes a second helical gear 11 fixedly installed on the one-way electric telescopic rod 10, a third helical gear 12 fixedly installed on the telescopic end of the one-way electric telescopic rod 10, and a first helical gear 9 fixedly installed on both hollow grinding rollers 8. The second helical gear 11 and the third helical gear 12 respectively mesh with the corresponding first helical gear 9. The first helical gear 9, the second helical gear 11, and the third helical gear 12 are the meshing transmission components of the hollow grinding roller 8. They are used to synchronously transmit the power of the power assembly to the upper and lower hollow grinding rollers 8, driving the two hollow grinding rollers 8 to rotate synchronously. This ensures that the rotation speed of the upper and lower hollow grinding rollers 8 is completely consistent, ensuring that the grinding amount on the upper and lower surfaces of the strip floor 43 is uniform. At the same time, during the adjustment of the spacing of the one-way electric telescopic rod 10, the second helical gear 11 and the third helical gear 12 always maintain meshing with the first helical gear 9 on the corresponding side, so as to achieve uninterrupted power transmission during the spacing adjustment process.

[0032] Two transmission frames 20 are fixedly installed on the second adjustment frame 17. The grinding chamber 2 has a sliding groove for sliding limit of the two transmission frames 20. The two transmission frames 20 are rotatably connected to a bidirectional limit telescopic rod 21. The transmission frame 20 is used to provide rotational support for the bidirectional limit telescopic rod 21, ensuring that the transmission mechanism maintains stable power transmission during the side spacing adjustment process, and there will be no problems such as transmission interruption or misalignment. Both telescopic ends of the bidirectional limiting telescopic rod 21 are fixedly installed with worm gears 24, and both side grinding rollers 18 are fixedly installed with first transmission rods 22. One end of each of the two first transmission rods 22 is fixedly installed with a worm wheel 23 that meshes with the corresponding worm gear 24. One telescopic end of the bidirectional limiting telescopic rod 21 is fixedly installed with a transmission telescopic rod 25. The worm gear 23 and worm 24 are used to transmit the rotational power of the bidirectional limiting telescopic rod 21 to the first transmission rod 22, which in turn drives the side grinding roller 18 to rotate, and the side of the strip floor 43 is rough ground by the side grinding roller 18.

[0033] In a further embodiment, the fine grinding assembly includes a fixed frame 26 fixedly installed inside the grinding chamber 2. The fixed frame 26 serves as a mounting reference carrier for the fine grinding assembly to ensure that the relative positions of each component of the fine grinding assembly correspond precisely with those of the coarse grinding assembly, thereby ensuring that the floor after coarse grinding can smoothly enter the fine grinding area. Two metal tubes 27 are fixedly installed on the fixed frame 26. Two hollow grinding discs 28 are rotatably connected to the corresponding metal tubes 27. The metal tubes 27 are used to provide rotational support for the hollow grinding discs 28. Two second transmission rods 30 are rotatably connected on the fixed frame 26. Side grinding discs 31 are fixedly installed on both second transmission rods 30. The hollow grinding disc 28 and the side grinding disc 31 are used to polish the upper and lower surfaces and two sides of the strip floor 43 after coarse grinding, to eliminate the grinding marks left by the coarse grinding process and improve the smoothness and flatness of the floor surface. A fifth helical gear 32 is fixedly installed on each of the two side grinding discs 31, and a fourth helical gear 29 that meshes with the fifth helical gear 32 is fixedly installed on each of the two hollow grinding discs 28. The fourth helical gear 29 and the fifth helical gear 32 are used to transmit the power generated by the power component, driving the hollow grinding disc 28 and the side grinding disc 31 to rotate, thereby realizing the synchronous operation of fine grinding of the upper and lower surfaces and fine grinding of the sides, ensuring that the processing rhythm is completely consistent.

[0034] Example 3: Refer to Figure 15 - Figure 16 and Figure 3 The technical solution that differs from that of Embodiment 1 is that the power assembly includes a transmission chamber 35 fixedly installed on one side of the grinding chamber 2. The transmission chamber 35 is used to isolate grinding dust from external impurities. The effect is to prevent grinding dust from entering the transmission parts and causing wear on transmission components such as gears, belts, and bearings, thereby extending the service life of the transmission components. At the same time, it prevents the transmission components from being exposed and causing injury to the operator, thereby improving the safety protection level of the equipment. A drive motor 37 is fixedly installed on one side of the transmission chamber 35. One of the second transmission rods 30 passes through the grinding chamber 2 and is fixedly connected to the drive end of the drive motor 37. A third transmission rod 36 is rotatably connected inside the transmission chamber 35. The third transmission rod 36 passes through the grinding chamber 2 and is fixedly connected to one end of the transmission telescopic rod 25. A fourth transmission rod 13 is rotatably connected to the first adjusting frame 7. One end of the fourth transmission rod 13 passes into the transmission chamber 35, and the other end is fixedly connected to the hollow grinding roller 8 located at the bottom. The drive motor 37, the third transmission rod 36, and the fourth transmission rod 13 are used to output and transmit stable rotational power. Through the transmission mechanism, the coarse grinding component, the side coarse grinding component, the fine grinding component, and the side fine grinding component are synchronously driven to operate. A first transmission belt is fitted between the second transmission rod 30 and the third transmission rod 36, and a second transmission belt is fitted between the third transmission rod 36 and the fourth transmission rod 13. The cooperation of the first and second transmission belts enables the second transmission rod 30 to drive the third transmission rod 36 and the fourth transmission rod 13 to rotate synchronously.

[0035] In a further embodiment, the chip removal assembly includes a plurality of first suction holes 41 formed on two hollow sanding rollers 8, and a plurality of second suction holes 42 formed on two hollow sanding discs 28. The first suction holes 41 and the second suction holes 42 are the source dust inlets for the coarse grinding area and the fine grinding area, respectively, and are used to stably transport the wood chips sucked in by the hollow sanding rollers 8 and the hollow sanding discs 28 to the dust pump 38, so as to realize real-time dust removal in the coarse grinding area and the fine grinding area, and avoid wood chips adhering to the surface of the strip floor 43 and affecting the grinding effect.

[0036] Two metal tubes 27 are fixedly connected to a second conveying hose 40 at one end, and two hollow grinding rollers 8 are connected to a first conveying hose 39 at one end. A dust pump 38 is fixedly installed on the support base 1. One end of the first conveying hose 39 passes through the grinding chamber 2 and is fixedly connected to the dust suction port of the dust pump 38. One end of the second conveying hose 40 passes through the grinding chamber 2 and is fixedly connected to the dust suction port of the dust pump 38. A dust collection hose 44 is fixedly connected between one side of the grinding chamber 2 and the dust suction port of the dust pump 38. The dust pump 38 is used to generate a continuous and stable negative pressure suction to provide power for the dust collection operation of the entire equipment. The first conveying hose 39, the second conveying hose 40 and the dust collection hose 44 are used to collect the wood chips and dust generated by grinding and then convey them to the dust pump 38. In a further embodiment, the grinding chamber 2 is provided with a dust blowing mechanism for blowing off dust from the surface of the strip floor 43. The dust blowing mechanism includes two air inlet chambers 33 fixedly installed inside the grinding chamber 2, and the air outlet of the air inlet chamber 33 is a conical opening. Two inclined scrapers 34 are fixedly installed at the discharge port of the grinding chamber 2, and the two inclined scrapers 34 are located below the conical opening. The air intake chamber 33 outputs a rapid airflow through a conical air outlet to precisely blow away the residual wood chips and dust on the surface of the strip flooring 43, thereby completely blowing away the fine dust adhering to the surface of the strip flooring 43 and preventing wood chips from flowing out of the grinding chamber 2 with the strip flooring 43. At the same time, the dust pump 38 works in conjunction with the air intake chamber 33 to remove the blown dust in real time. The inclined scraper 34 is made of flexible and wear-resistant material and is used to assist the air intake chamber 33 in scraping away the fine dust and debris remaining on the surface of the strip flooring 43. Together with the rapid airflow, the surface of the strip flooring 43 is thoroughly cleaned, ensuring that the surface of the strip flooring 43 is clean and free of residue when it is discharged.

[0037] In a further embodiment, a guide assembly is disposed on the grinding chamber 2, and two guide plates 6 are disposed therein for guiding the strip floor 43 into the interior of the grinding chamber 2; The guiding assembly includes a conveyor frame 4 fixedly installed inside the grinding chamber 2. Conveyor rollers are rotatably connected to the conveyor frame 4. The conveyor rollers are used to transport the strip flooring 43 to be processed to the grinding unit. Several spring telescopic rods 5 are fixedly installed on both sides inside the grinding chamber 2. Two guide plates 6 are fixedly installed on the corresponding spring telescopic rods 5. The spring telescopic rods 5 and guide plates 6 cooperate to gradually guide and correct the strip flooring 43 entering the grinding chamber 2, guiding the flooring to enter the grinding unit accurately and centering it, avoiding problems such as deviation and swaying during the feeding process of the strip flooring 43.

[0038] The specific working principle of this grinding device is as follows: When processing the strip floor 43, the strip floor 43 to be processed is first placed on the conveyor rollers of the conveyor frame 4. The conveyor rollers drive the floor to move into the grinding chamber 2. During the movement, the spring telescopic rods 5 on both sides of the grinding chamber 2 provide continuous and balanced elastic support for the guide plate 6. The guide plate 6 guides and corrects the strip floor 43, guiding the strip floor 43 to accurately enter the grinding unit. Before the strip floor 43 enters the grinding unit, the drive motor 37 is started, and its output power is directly transmitted to the second transmission rod 30. The second transmission rod 30 drives the side grinding disc 31 to rotate. The side grinding disc 31 transmits power synchronously to the hollow grinding disc 28 through the meshing of the fifth helical gear 32 and the fourth helical gear 29, and finally realizes that the side grinding disc 31 and the hollow grinding disc 28 rotate synchronously. At the same time, the second transmission rod 30 transmits power synchronously to the third transmission rod 36 through the first transmission belt, causing the third transmission rod 36 to rotate synchronously. The third transmission rod 36 transmits power synchronously to the transmission telescopic rod 25, which in turn drives the worm 24 on the bidirectional limiting telescopic rod 21 to rotate. Through the meshing of the worm wheel 23 and the worm 24, the worm wheel 23 is driven to rotate. When the worm wheel 23 rotates, it drives the side grinding roller 18 to rotate synchronously through the first transmission rod 22. On the other hand, the third transmission rod 36 transmits power synchronously to the fourth transmission rod 13 through the second transmission belt. The fourth transmission rod 13 drives the lower hollow grinding roller 8 to rotate, and through the meshing transmission between the first helical gear 9, the second helical gear 11 and the third helical gear 12, it drives the upper hollow grinding roller 8 to rotate synchronously in the opposite direction. After being guided, the strip flooring 43 first enters the rough grinding process. Two hollow grinding rollers 8 rotate synchronously to rough grind the upper and lower surfaces of the strip flooring 43 to fix the thickness, quickly removing the blank allowance, unevenness and processing defects on the surface of the strip flooring 43. At the same time, the side grinding rollers 18 rotate synchronously to rough grind and trim the two sides of the flooring, removing side burrs, flash and dimensional deviations. After rough grinding, the floor is continuously conveyed to the fine grinding process. The hollow grinding discs 28 arranged symmetrically on the top and bottom and the side grinding discs 31 arranged symmetrically on the left and right rotate synchronously to polish the upper and lower surfaces and sides of the strip floor 43 after rough grinding, so as to eliminate the grinding marks left by the rough grinding process. Throughout the grinding process, the pressure sensors 15 on the first adjustment frame 7 and the second adjustment frame 17 roll in real time with the floor surface through the transmission wheel 16, continuously collecting grinding pressure data at the corresponding grinding position and feeding the signal back to the PLC controller in real time. When the grinding pressure exceeds the preset value, the PLC controller immediately outputs an adjustment command to control the unidirectional electric telescopic rod 10 to finely adjust the distance between the upper and lower hollow grinding rollers 8 and to control the bidirectional electric telescopic rod 19 to finely adjust the distance between the two side grinding rollers 18, thereby reducing the grinding pressure and avoiding floor deformation, edge chipping, and surface burns caused by excessive pressure. When the grinding pressure is detected to be lower than the preset value, the PLC controller controls the unidirectional electric telescopic rod 10 and the bidirectional electric telescopic rod 19 to make reverse fine adjustments, reducing the grinding distance and ensuring that the grinding parts are in full contact with the floor surface, thus avoiding problems such as missed grinding and insufficient grinding caused by insufficient pressure. During the grinding operation, the dust pump 38 continuously operates to generate a stable negative pressure suction force, which is connected to the inner cavity of the hollow grinding roller 8 through the first conveying hose 39. This creates a negative pressure at the first suction hole 41 on the grinding working surface of the hollow grinding roller 8, directly sucking the generated wood chips into the inner cavity from the grinding source during rough grinding, preventing wood chips from splashing and accumulating in the grinding area. Then, the second conveying hose 40 and the metal pipe 27 are connected to the inner cavity of the hollow grinding disc 28, creating a negative pressure at the second suction hole 42 on the grinding working surface of the hollow grinding disc 28. This directly removes the generated fine dust from the source during fine grinding, preventing dust from adhering to the floor surface and affecting the fine grinding effect. After fine grinding, the floor passes through the dust blowing mechanism before the discharge port. The air inlet chamber 33 outputs high-pressure airflow through the conical air outlet to blow away the fine dust remaining on the floor surface. Combined with the flexible scraping of the inclined scraper 34, the dust and debris remaining on the floor surface are thoroughly cleaned. At the same time, the dust collection hose 44 simultaneously sucks the dust and debris floating in the grinding chamber 2 into the dust suction pump 38, realizing dust removal without dead corners in the entire grinding chamber 2. This achieves dust removal while grinding, thereby avoiding the interference of wood chips and dust between the grinding parts and the floor, ensuring the grinding effect and the continuous stability of the grinding process.

[0039] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A grinding device for processing strip flooring, comprising a grinding chamber (2) disposed on a support base (1), and a strip flooring (43) to be processed placed inside the grinding chamber (2), characterized in that, Also includes: The grinding unit is located inside the grinding chamber (2) and includes a rough grinding assembly, a spacing adjustment assembly, a fine grinding assembly, a power assembly and a chip removal assembly; The coarse grinding assembly is provided with two hollow grinding rollers (8) for coarse grinding the upper and lower surfaces of the strip floor (43) and two side grinding rollers (18) for coarse grinding the two sides of the strip floor (43). The spacing adjustment assembly is used to adjust the spacing between the two hollow grinding rollers (8) and the two side grinding rollers (18). The fine grinding assembly is provided with two hollow grinding discs (28) for fine grinding the upper and lower surfaces of the strip floor (43) and two side grinding discs (31) for fine grinding the two sides of the strip floor (43). The chip removal assembly is used to remove the wood chips generated during grinding. A guide assembly is provided on the grinding chamber (2), which has two guide plates (6) for guiding the strip floor (43) into the interior of the grinding chamber (2).

2. The grinding equipment for processing strip flooring according to claim 1, characterized in that, A controller (3) is fixedly installed on the grinding chamber (2), a PLC controller is fixedly connected to the controller (3), a control panel is fixedly connected to the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel uses a PLC controller to control the start-up and operation status of the grinding unit.

3. The grinding equipment for processing strip flooring according to claim 1, characterized in that, The coarse grinding assembly includes a first adjustment frame (7) fixedly installed inside the grinding chamber (2), two hollow grinding rollers (8) are rotatably connected to the first adjustment frame (7), and a second adjustment frame (17) is provided inside the grinding chamber (2), with two side grinding rollers (18) rotatably connected to the second adjustment frame (17).

4. The grinding equipment for processing strip flooring according to claim 3, characterized in that, The spacing adjustment assembly includes a one-way electric telescopic rod (10) rotatably connected to the first adjustment frame (7). The one-way electric telescopic rod (10) is used to adjust the spacing between the two hollow grinding rollers (8) on the first adjustment frame (7). A two-way electric telescopic rod (19) is fixedly installed on the second adjustment frame (17). The two-way electric telescopic rod (19) is used to adjust the spacing between the two side grinding rollers (18) on the second adjustment frame (17). The first adjustment frame (7) and the second adjustment frame (17) are each provided with a support frame (14), and pressure sensors (15) are fixedly installed on the two support frames (14). The two pressure sensors (15) are used to detect the pressure of the two hollow grinding rollers (8) and the two side grinding rollers (18) on the strip floor (43). The two pressure sensors (15) are rotatably connected with transmission wheels (16). The contact positions of the two transmission wheels (16) with the surface of the strip floor (43) and the contact positions of the hollow grinding rollers (8) and the side grinding rollers (18) with the strip floor (43) are on the same plane. Both the first adjustment frame (7) and the second adjustment frame (17) are equipped with a transmission mechanism for transmitting power.

5. The grinding equipment for processing strip flooring according to claim 4, characterized in that, The transmission mechanism includes a second helical gear (11) fixedly installed on a one-way electric telescopic rod (10), a third helical gear (12) fixedly installed on the telescopic end of the one-way electric telescopic rod (10), and a first helical gear (9) fixedly installed on each of the two hollow grinding rollers (8). The second helical gear (11) and the third helical gear (12) respectively mesh with the corresponding first helical gear (9). Two transmission frames (20) are fixedly installed on the second adjustment frame (17). The grinding chamber (2) has a sliding groove for sliding and limiting the two transmission frames (20). The two transmission frames (20) are rotatably connected to a bidirectional limiting telescopic rod (21). Both telescopic ends of the bidirectional limiting telescopic rod (21) are fixedly installed with worm gears (24). Both side grinding rollers (18) are fixedly installed with first transmission rods (22). One end of each of the two first transmission rods (22) is fixedly installed with a worm wheel (23) that meshes with the corresponding worm gear (24). One telescopic end of the bidirectional limiting telescopic rod (21) is fixedly installed with a transmission telescopic rod (25).

6. The grinding equipment for processing strip flooring according to claim 5, characterized in that, The fine grinding assembly includes a fixed frame (26) fixedly installed inside the grinding chamber (2). Two metal tubes (27) are fixedly installed on the fixed frame (26). Two hollow grinding discs (28) are rotatably connected to the corresponding metal tubes (27). Two second transmission rods (30) are rotatably connected on the fixed frame (26). Side grinding discs (31) are fixedly installed on the two second transmission rods (30). A fifth helical gear (32) is fixedly installed on each of the two side grinding discs (31), and a fourth helical gear (29) that meshes with the fifth helical gear (32) is fixedly installed on each of the two hollow grinding discs (28).

7. The grinding equipment for processing strip flooring according to claim 6, characterized in that, The power assembly includes a transmission chamber (35) fixedly installed on one side of the grinding chamber (2), a drive motor (37) fixedly installed on one side of the transmission chamber (35), one of the second transmission rods (30) passing through the grinding chamber (2) and fixedly connected to the drive end of the drive motor (37), a third transmission rod (36) rotatably connected inside the transmission chamber (35), and the third transmission rod (36) passing through the grinding chamber (2) and fixedly connected to one end of the transmission telescopic rod (25), a fourth transmission rod (13) rotatably connected on the first adjusting frame (7), one end of the fourth transmission rod (13) passing into the transmission chamber (35), and the other end fixedly connected to the hollow grinding roller (8) located at the bottom; A first transmission belt is sleeved between the second transmission rod (30) and the third transmission rod (36), and a second transmission belt is sleeved between the third transmission rod (36) and the fourth transmission rod (13). Through the cooperation of the first transmission belt and the second transmission belt, the second transmission rod (30) drives the third transmission rod (36) and the fourth transmission rod (13) to rotate synchronously.

8. The grinding equipment for processing strip flooring according to claim 7, characterized in that, The chip removal assembly includes several first suction holes (41) on two hollow grinding rollers (8), several second suction holes (42) on two hollow grinding discs (28), a second conveying hose (40) fixedly connected to one end of two metal pipes (27), a first conveying hose (39) rotatably connected to one end of two hollow grinding rollers (8), a dust pump (38) fixedly installed on the support base (1), a first conveying hose (39) fixedly connected to one end of the first conveying hose (39) passing through the grinding chamber (2) and the dust suction port of the dust pump (38), a second conveying hose (40) fixedly connected to one end of the second conveying hose (40) passing through the grinding chamber (2) and the dust suction port of the dust pump (38), and a dust collection hose (44) fixedly connected between one side of the grinding chamber (2) and the dust suction port of the dust pump (38). The grinding chamber (2) is equipped with a dust blowing mechanism for blowing away dust from the surface of the strip floor (43).

9. A grinding device for processing strip flooring according to claim 8, characterized in that, The dust blowing mechanism includes two air inlet chambers (33) fixedly installed inside the grinding chamber (2), and the air outlet of the air inlet chamber (33) is a conical opening. The discharge port of the grinding chamber (2) is fixedly installed with two inclined scrapers (34), and the two inclined scrapers (34) are located below the conical opening.

10. A grinding device for processing strip flooring according to claim 8, characterized in that, The guiding assembly includes a conveyor frame (4) fixedly installed inside the grinding chamber (2). A conveyor roller is rotatably connected to the conveyor frame (4). The conveyor roller is used to convey the strip floor (43) to be processed to the grinding unit. Several spring telescopic rods (5) are fixedly installed on both sides inside the grinding chamber (2). Two guide plates (6) are fixedly installed on the corresponding spring telescopic rods (5).

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