A grinding device and grinding method for processing building decoration materials

Abstract

This invention provides a grinding device and method for processing building decoration materials, belonging to the field of decoration material processing technology. It includes a traction mechanism for driving the sheet material forward, with the direction of forward movement defined as left-right. The traction mechanism comprises a first traction roller group, a third traction roller group, and a fourth traction roller group arranged sequentially along the left-right direction; and a longitudinal grinding brush group disposed between the first and third traction roller groups. This invention utilizes the sheet material's own conveying driving force to drive the left and right end-face grinding mechanisms to operate accordingly. It eliminates the need for independent drive components for the left and right end-face grinding mechanisms and eliminates the need for calibration and adjustment of the end-face grinding mechanisms and sheet material conveying speed, reducing modification difficulty. It can be directly modified from existing four-sided grinding production lines, avoiding the problems of equipment idleness and high investment costs associated with replacing the entire machine.

Description

Technical Field

[0001] This invention relates to the field of decorative material processing technology, specifically to a grinding device and grinding method for processing building decorative materials. Background Technology

[0002] In the field of building decoration material processing, commonly used boards mainly fall into two categories: the first is flooring products with uniform specifications, such as ceramic tile flooring and engineered wood flooring, which have a high degree of dimensional standardization, strong versatility, and less demand for customization; the second is wood or composite boards that are widely used in personalized decoration, furniture making, and DIY crafts, such as solid wood boards, particleboard, and plywood. These boards need to be cut into non-standard sizes according to customer orders, and after cutting, they need to be sanded and deburred.

[0003] In traditional processing, since sheet metal is mostly used as an internal assembly substrate, there are few instances where the end face is exposed. The industry generally only sands and polishes the four main surfaces of the sheet metal: top, bottom, front, and back. The end face polishing process has long been simplified or omitted.

[0004] With the continued expansion of the home improvement DIY market and the personalized decoration customization market, more and more end users are choosing to directly purchase semi-finished boards for self-processing and assembly, leading to a significant increase in scenarios where the ends of the boards are directly exposed. Unpolished ends have sharp burrs, posing significant safety hazards and potentially reducing the product's market competitiveness. Therefore, smoothing, deburring, and chamfering the ends of cut boards has become a necessary process for high-quality board processing.

[0005] like Figure 1 As shown, the currently used board sanding equipment is a conventional four-sided sanding machine, including a traction mechanism for moving the board and longitudinal and transverse sanding brush groups for sanding the sides of the board. It can continuously sand the top and bottom sides and front and back sides of the board (the direction of board movement is defined as left and right). It does not have end-face sanding function and cannot meet the requirements of end-face sanding process. In the current production mode, after the board is sanded on all four sides by the main sanding equipment, it needs to be transferred to an independent workstation for secondary processing by dedicated end-face sanding equipment or manual hand-held sanding tools to trim the end face of each piece. The process is cumbersome, the transfer is time-consuming, the labor cost is high, and the consistency and accuracy of manual sanding are poor. The overall production efficiency is extremely low and it is difficult to adapt to the needs of mass production line production.

[0006] To address the pain point of missing end-face grinding, existing renovation solutions mainly fall into two categories: complete machine replacement and equipment modification. One option is to directly purchase a brand-new integrated grinding machine with end-face grinding functionality. This solution involves extremely high equipment investment costs, and the company's existing four-sided grinding equipment is in good working order, with the production line functioning normally. Replacing the entire machine would result in idle equipment, wasted resources, and low cost-effectiveness.

[0007] Secondly, upgrading existing grinding equipment by adding end-face grinding mechanisms presents numerous technical challenges. Existing retrofit structures often employ independent drives and control systems, requiring circuit re-matching and control program debugging, resulting in high complexity. More critically, the existing sheet material conveying direction is perpendicular to the working direction of the added end-face grinding mechanism, with independent motion logic. Each time production is changed, machine is adjusted, or sheet material specifications are altered, repeated calibration and matching of the conveying speed and grinding feed position are necessary, leading to significant debugging workload, high operator skill requirements, and potential safety hazards such as equipment interference and collisions due to misaligned operation. This results in poor practical applicability and high maintenance costs. Summary of the Invention

[0008] This invention provides a grinding device and grinding method for processing building decoration materials, in order to solve the technical problems in the prior art.

[0009] To solve the above problems, the grinding device for processing building decoration materials provided by the present invention adopts the following technical solution: it includes a traction mechanism for driving the board to move, and the direction of the board to move is defined as the left and right direction. The traction mechanism includes a first traction roller group, a third traction roller group and a fourth traction roller group arranged sequentially along the left and right direction. The longitudinal grinding brush group is set between the first traction roller group and the third traction roller group. The longitudinal grinding brush group is used to grind the front and rear sides of the plate. The transverse grinding brush group is set between the third traction roller group and the fourth traction roller group. The transverse grinding brush group is used to grind the upper and lower sides of the plate. Also includes: Two guide rails are located above the traction mechanism and are horizontally arranged in the left-right direction. The left end face grinding mechanism is slidably mounted on the guide rail; The right end face grinding mechanism is slidably mounted on the guide rail. The right end face grinding mechanism is fixedly connected to the left end face grinding mechanism through the connecting rod. The right end face grinding mechanism and the left end face grinding mechanism have the same structure and are symmetrically arranged on the left and right sides of the connecting rod. The right end face grinding mechanism includes a support frame, on which a gripping structure and a grinding structure are respectively installed. The gripping structure is located on one side near the fourth traction roller group. The gripping structure is used to ensure that the right end face grinding mechanism and the left end face grinding mechanism move at the same speed as the plate when gripping the plate, so as to ensure the end face grinding accuracy. The reset mechanism is used to drive the right end face grinding mechanism and the left end face grinding mechanism to reset.

[0010] As a further improvement, the grinding structure includes a grinding motor mounted on a support frame, with the output shaft of the grinding motor facing downwards and a grinding brush detachably connected to the output shaft of the grinding motor. Guide rods fixedly connected to the support frame are provided on both the left and right sides of the grinding motor, and the guide rods are horizontally arranged in the front-back direction. The grinding motor is slidably mounted on the guide rods. Above the grinding motor is a translation structure for driving the grinding motor to move horizontally, so that the grinding brush can move in the front and back direction and grind the end face of the plate.

[0011] As a further improvement, the translation structure is a rodless cylinder fixedly mounted on a load-bearing frame.

[0012] As a further improvement, the gripping structure includes two symmetrically arranged gripping cylinders, with grippers fixedly connected to the telescopic shafts of the gripping cylinders. The gripping cylinders have a gripping position and a release position during their telescopic stroke. When in the gripping position, the gripping cylinder extends, and the grippers are engaged on the front and rear sides of the plate. The friction between the grippers and the plate drives the right end face grinding mechanism and the left end face grinding mechanism to slide. When in the release position, the gripping cylinder retracts, the grippers separate from the plate, and the reset mechanism drives the right end face grinding mechanism and the left end face grinding mechanism to reset.

[0013] As a further improvement, the inner side of the gripper is fixedly connected with an anti-slip pad for protecting the plate and increasing friction.

[0014] As a further improvement, the reset mechanism includes a fixed frame that is fixedly installed on the guide rail. The fixed frame is located between the right end face grinding mechanism and the left end face grinding mechanism. A damping rod is provided between the fixed frame and the right end face grinding mechanism. The two ends of the damping rod are respectively connected to the fixed frame and the right end face grinding mechanism. A reset spring is also sleeved on the damping rod.

[0015] As a further improvement, a photoelectric sensor is provided between the fourth traction roller group and the right end face grinding mechanism.

[0016] As a further improvement, the outer surfaces of the roller shafts of the first traction roller group, the third traction roller group, and the fourth traction roller group are all provided with anti-slip textures to increase friction.

[0017] The present invention also provides a grinding method for processing building decoration materials, which uses the above-mentioned grinding device for processing building decoration materials and includes the following steps: S1. Feeding: The cut sheet material is conveyed to the grinding device via an external conveying device; S2. Side grinding: The first traction roller group pulls the plate forward, and the roller brush of the longitudinal grinding brush group rotates at high speed to grind the front and rear sides of the plate. S3. Grinding the top and bottom surfaces: The third traction roller group continues to pull the plate forward, and the transverse grinding brush group grinds the top and bottom surfaces of the plate. S4. Grinding the left and right end faces: After the photoelectric sensor detects the board, the gripping cylinders of the right end face grinding mechanism and the left end face grinding mechanism extend, and the two jaws clamp the two sides of the board, so that the board moves synchronously with the right end face grinding mechanism and the left end face grinding mechanism. At the same time, the grinding motor starts and drives the grinding brush to rotate, and the rodless cylinder drives the grinding motor to move in the front and back direction to grind the entire end face of the plate. After grinding, the gripping cylinder retracts, the grippers separate from the plate, and the return spring pulls the right end grinding mechanism and the left end grinding mechanism back to their original positions.

[0018] The beneficial effects of the above-described technical solution of the present invention are as follows: 1. This invention utilizes the self-conveying driving force of the sheet material to drive the left and right end face grinding mechanisms to operate in a follow-up manner. It does not require the configuration of independent driving components for the left and right end face grinding mechanisms, nor does it require calibration and adjustment of the end face grinding mechanism and the sheet material conveying speed. This reduces the difficulty of modification and can be directly modified on the basis of the existing four-sided grinding production line, avoiding the problems of equipment idleness and high investment costs caused by replacing the whole machine.

[0019] 2. The front and back sides, top and bottom sides, and left and right end faces of the board can be polished sequentially on the same production line, eliminating the need for board transfer, manual or separate station secondary polishing of the end faces, thus improving processing efficiency; it can also polish at the same speed as the board, ensuring the processing accuracy and consistency of the end face polishing.

[0020] 3. The reset mechanism is equipped with a reset spring and a damping rod. After the gripping structure releases the plate, the grinding mechanism automatically resets by relying on the reset spring. The damping rod dissipates the kinetic energy during the reset process, effectively reducing the impact, vibration and noise of the mechanism's return, preventing the mechanism from rebounding and shaking, and ensuring the stability of the mechanism's cyclic operation.

[0021] 4. The photoelectric sensors, rodless cylinders and other components are all mature parts, which are stable in operation and highly automated. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 A schematic diagram of the structure of a grinding device used for processing existing building decoration materials; Figure 2 This is a schematic diagram of the structure of the grinding device for processing building decoration materials according to the present invention; Figure 3 This is a top view of the grinding device for processing building decoration materials according to the present invention. Figure 4 This is a side view of the grinding structure of the grinding device for processing building decoration materials according to the present invention. Figure 5 This is a side view of the gripping structure of the grinding device for processing building decoration materials according to the present invention.

[0023] Explanation of reference numerals in the attached figures: 100. Traction mechanism; 110. First traction roller group; 120. Second traction roller group; 130. Third traction roller group; 140. Fourth traction roller group; 200. Longitudinal grinding brush group; 300. Transverse grinding brush group; 400. Guide rail; 500. Left end face grinding mechanism; 600. Connecting rod; 700. Photoelectric sensor; 800. Right end face grinding mechanism; 810. Support frame; 820. Grinding structure; 821. Rodless cylinder; 822. Grinding motor; 823. Guide rod; 824. Grinding brush; 830. Gripping structure; 831. Gripping cylinder; 832. Gripper; 833. Anti-slip pad; 900. Reset mechanism; 910. Fixing frame; 920. Damping rod; 930. Reset spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Existing four-sided grinding equipment for sheet metal does not have end-face grinding function. Adding an independent end-face grinding mechanism requires an independent drive and control system, which needs to be frequently calibrated with the sheet metal conveying speed, resulting in high maintenance costs. Replacing the entire machine is costly and causes the original equipment to be idle. Manual secondary end-face grinding is inefficient and has poor processing consistency.

[0026] Regarding the aforementioned technical problems, the basic concept of this invention is as follows: Instead of setting a separate translational force, the gripping structure 830 clamps the plate and directly drives the left end face grinding mechanism 500 and the right end face grinding mechanism 800 to move at the same speed as the plate, relying on the friction force of the plate's own traction. There is no need to configure an independent drive source for the end face grinding mechanism, nor is it necessary to calibrate and match the grinding mechanism with the plate conveying speed, which reduces the difficulty of modification and maintenance.

[0027] With the reset mechanism 900, the mechanism automatically resets after being released, and the upper and lower, front and rear sides, as well as the left and right end faces of the board are simultaneously ground on the basis of the existing four-sided grinding production line, improving processing efficiency and adapting to the transformation of existing equipment.

[0028] The basic principle of this invention is as follows: Driven by the traction mechanism 100, the sheet material is continuously fed in the left and right directions. The traction mechanism 100 has three to four sets of traction rollers to ensure sufficient feeding force. The sheet material is first polished on the front and back sides by the longitudinal polishing brush group 200, and then polished on the upper and lower sides by the transverse polishing brush group 300.

[0029] When the photoelectric sensor 700 detects that the board is in place, the gripping cylinder 831 extends and the gripper 832 clamps the board. Relying on the friction between the gripper 832 and the board, the moving board drives the left end face grinding mechanism 500 and the right end face grinding mechanism 800 to move to the right along the guide rail 400 in sync with the board. At this time, the grinding motor 822 drives the grinding brush 824 to rotate, and the rodless cylinder 821 drives the grinding motor 822 to move in the front and back direction to completely grind the end face of the board.

[0030] During this process, the reset spring 930 of the reset mechanism 900 is stretched and stores energy, and the damping rod 920 is stretched simultaneously. After the end face grinding is completed, the gripping cylinder 831 retracts, the gripper 832 releases its grip on the plate, and the plate continues to be conveyed to the right. The energy-stored reset spring 930 pulls the left end face grinding mechanism 500 and the right end face grinding mechanism 800 to reset along the guide rail 400. The damping rod 920 generates damping dissipation of the return kinetic energy during the reset stroke, suppressing the impact and vibration during the reset of the mechanism. The mechanism returns to the initial standby position, waiting for the next plate to be processed.

[0031] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0032] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments. Example

[0033] like Figures 1-5 As shown, the grinding device for processing building decoration materials includes a traction mechanism 100, a longitudinal grinding brush group 200, a transverse grinding brush group 300, two guide rails 400, a left end face grinding mechanism 500, a right end face grinding mechanism 800, a reset mechanism 900, and a photoelectric sensor 700.

[0034] In this embodiment, the grinding device is a small grinding device with a total length of 1.2m. The traction mechanism 100 includes a first traction roller group 110, a second traction roller group 120, a third traction roller group 130, and a fourth traction roller group 140, which has sufficient traction force. The outer surface of the roller shafts of the first traction roller group 110, the second traction roller group 120, the third traction roller group 130, and the fourth traction roller group 140 are all provided with anti-slip textures to increase friction. The distance between the first traction roller group 110 and the fourth traction roller group 140 is 0.7m. Therefore, the minimum processing length of the grinding device in this embodiment is 1m. By adjusting the length of the guide rail 400 and setting the extension frame, the maximum processing length is 1.5m. Due to the distance limitation between the first traction roller group 110 and the fourth traction roller group 140, plates smaller than 1m need to be processed by other grinding devices.

[0035] The longitudinal grinding brush group 200 is set between the first traction roller group 110 and the third traction roller group 130. The longitudinal grinding brush group 200 is used to grind the front and rear sides of the plate. The transverse grinding brush group 300 is set between the third traction roller group 130 and the fourth traction roller group 140. The transverse grinding brush group 300 is used to grind the upper and lower sides of the plate. Both the longitudinal grinding brush group 200 and the transverse grinding brush group 300 are existing technologies, and their structures will not be described in detail here.

[0036] Two guide rails 400 are located above the traction mechanism 100. The two guide rails 400 are horizontally arranged in the left-right direction and spaced apart in the front-back direction. The guide rails 400 are optical shafts with a circular cross-section so as to cooperate with ball linear bearings.

[0037] The total weight of the left end face grinding mechanism 500 and the right end face grinding mechanism 800 is about 12kg. The friction coefficient of the ball linear bearing is relatively small, generally around 0.015 considering actual use, and theoretically it can be even lower. Pulling the left end face grinding mechanism 500 and the right end face grinding mechanism 800 requires a force of about 2N. In addition, it is necessary to overcome the work done by the damping rod 920 and the return spring 930. Therefore, pulling the left end face grinding mechanism 500 and the right end face grinding mechanism 800 requires a force of about 12N. The first traction roller group 110, the second traction roller group 120, the third traction roller group 130 and the fourth traction roller group 140 can fully meet the power of the sheet metal to drive the left end face grinding mechanism 500 and the right end face grinding mechanism 800 to move.

[0038] The left end face grinding mechanism 500 and the right end face grinding mechanism 800 are both slidably mounted on the guide rail 400 through ball linear bearings. The right end face grinding mechanism 800 is fixedly connected to the left end face grinding mechanism 500 through the connecting rod 600. The right end face grinding mechanism 800 and the left end face grinding mechanism 500 have the same structure and are symmetrically arranged on the left and right sides of the connecting rod 600. The right end face grinding mechanism 800 includes a support frame 810, which is made of aluminum profile to reduce the overall weight. The support frame 810 is equipped with a gripping structure 830 and a grinding structure 820. The gripping structure 830 is located on the side close to the fourth traction roller group 140. The gripping structure 830 is used to ensure that the right end face grinding mechanism 800 and the left end face grinding mechanism 500 move at the same speed as the plate when gripping the plate, so as to ensure the end face grinding accuracy. like Figure 4 As shown, the grinding structure 820 includes a grinding motor 822 mounted on a support frame 810. The output shaft of the grinding motor 822 faces downward, and a grinding brush 824 is detachably connected to the output shaft of the grinding motor 822. Guide rods 823 are fixedly connected to the support frame 810 on both the left and right sides of the grinding motor 822. The guide rods 823 are horizontally arranged in the front-back direction, and the grinding motor 822 is slidably mounted on the guide rods 823.

[0039] Above the grinding motor 822, there is also a translation structure for driving the grinding motor 822 to move horizontally, so that the grinding brush 824 can move in the front-back direction and grind the end face of the plate. In this embodiment, the translation structure is a rodless cylinder 821 fixedly installed on the load-bearing frame 810. In other embodiments, the translation structure can also be a synchronous belt.

[0040] like Figure 5 As shown, the gripping structure 830 includes two symmetrically arranged gripping cylinders 831. A gripper 832 is fixedly connected to the telescopic shaft of the gripping cylinder 831. The gripping cylinder 831 has a gripping position and a release position during its telescopic stroke. When the gripping cylinder 831 is in the gripping position, it extends and the gripper 832 is engaged on the front and rear sides of the board. The friction between the gripper 832 and the board drives the right end face grinding mechanism 800 and the left end face grinding mechanism 500 to slide. When the gripping cylinder 831 is in the release position, it retracts and the gripper 832 separates from the board. The reset mechanism 900 drives the right end face grinding mechanism 800 and the left end face grinding mechanism 500 to reset.

[0041] The inner side of the gripper 832 is fixedly connected to an anti-slip pad 833 for protecting the plate and improving friction. The anti-slip pad 833 is a rubber pad.

[0042] like Figure 3As shown, the reset mechanism 900 is used to drive the right end face grinding mechanism 800 and the left end face grinding mechanism 500 to reset. The reset mechanism 900 includes a fixed frame 910 fixedly installed on the guide rail 400. The fixed frame 910 is located between the right end face grinding mechanism 800 and the left end face grinding mechanism 500. A damping rod 920 is provided between the fixed frame 910 and the right end face grinding mechanism 800. The damping rod 920 can prevent the right end face grinding mechanism 800 from colliding. The two ends of the damping rod 920 are connected to the fixed frame 910 and the right end face grinding mechanism 800 respectively. A reset spring 930 is also sleeved on the damping rod 920.

[0043] A photoelectric sensor 700 is provided between the fourth traction roller group 140 and the right end face grinding mechanism 800. The photoelectric sensor 700 is used to sense the plate.

[0044] The present invention also provides a grinding method for processing building decoration materials, which uses the above-mentioned grinding device for processing building decoration materials and includes the following steps: S1. Feeding: The cut sheet metal is conveyed to the grinding device via an external conveying device; S2. Side grinding: The first traction roller group 110 pulls the plate forward, and the roller brush of the longitudinal grinding brush group 200 rotates at high speed to grind the front and rear sides of the plate. S3. Grinding the top and bottom surfaces: The third traction roller group 130 continues to pull the plate forward, and the transverse grinding brush group 300 grinds the top and bottom surfaces of the plate. S4. Polishing the left and right end faces: After the photoelectric sensor 700 detects the board, the gripping cylinder 831 of the right end face polishing mechanism 800 and the left end face polishing mechanism 500 extends, and the two grippers 832 clamp the two sides of the board, so that the board moves synchronously with the right end face polishing mechanism 800 and the left end face polishing mechanism 500. At the same time, the grinding motor 822 starts and drives the grinding brush 824 to rotate, and the rodless cylinder 821 drives the grinding motor 822 to move in the front and back direction to grind the entire end face of the plate. After grinding, the gripping cylinder 831 retracts, the gripper 832 separates from the plate, and the return spring 930 pulls the right end grinding mechanism 800 and the left end grinding mechanism 500 to reset. Example

[0045] Its main difference from Example 1 is: In Example 1, the minimum processing length is 1m.

[0046] In this embodiment, the left end face grinding mechanism 500 and the right end face grinding mechanism 800 are combined into an end face grinding mechanism. The end face grinding mechanism includes a support frame 810, a gripping structure 830 mounted on the support frame 810, and a grinding structure 820. There are two sets of gripping structures 830, located on the left and right sides of the grinding structure 820, respectively. In addition, the right side of the end face grinding mechanism is also provided with two to three sets of traction rollers and another photoelectric sensor 700.

[0047] When the first photoelectric sensor 700 senses the board material, the left gripping structure 830 grips the board material, and the grinding mechanism starts grinding the end face. After the end face grinding is completed, the left gripping structure 830 releases the clamp, and the end face grinding mechanism resets. When the second photoelectric sensor 700 senses the board material, the right gripping structure 830 grips the board material, and the grinding structure 820 starts grinding the right end face.

[0048] The advantage of this embodiment is that it can grind and process boards with a length of less than 1m, and only one grinding structure 820 is needed. Its limitation is that two to three additional sets of traction rollers are required to ensure stable board movement. Furthermore, when the board length is 0.5m-0.7m, the board speed needs to be appropriately reduced to ensure that the grinding structure 820 has reset by the time the board reaches the second photoelectric sensor 700.

[0049] While various embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of the invention and therefore cover any modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A grinding device for processing building decoration materials, comprising: The traction mechanism (100) is used to drive the sheet material to move. The direction of the sheet material to move is defined as the left and right direction. The traction mechanism (100) includes a first traction roller group (110), a third traction roller group (130) and a fourth traction roller group (140) arranged in sequence along the left and right direction. The longitudinal grinding brush group (200) is set between the first traction roller group (110) and the third traction roller group (130). The longitudinal grinding brush group (200) is used to grind the front and rear sides of the plate. A transverse grinding brush group (300) is set between the third traction roller group (130) and the fourth traction roller group (140). The transverse grinding brush group (300) is used to grind the upper and lower sides of the plate. Its characteristic is that it further includes: Two guide rails (400) are located above the traction mechanism (100) and are horizontally arranged in the left and right directions. The left end face grinding mechanism (500) is slidably mounted on the guide rail (400); The right end face grinding mechanism (800) is slidably mounted on the guide rail (400). The right end face grinding mechanism (800) is fixedly connected to the left end face grinding mechanism (500) through the connecting rod (600). The right end face grinding mechanism (800) and the left end face grinding mechanism (500) have the same structure and are symmetrically arranged on the left and right sides of the connecting rod (600). The right end face grinding mechanism (800) includes a support frame (810), on which a gripping structure (830) and a grinding structure (820) are respectively installed. The gripping structure (830) is located on the side close to the fourth traction roller group (140). The gripping structure (830) is used to ensure that the right end face grinding mechanism (800) and the left end face grinding mechanism (500) move at the same speed as the plate when gripping the plate, so as to ensure the end face grinding accuracy. The reset mechanism (900) is used to drive the right end face grinding mechanism (800) and the left end face grinding mechanism (500) to reset.

2. The grinding device for processing building decoration materials according to claim 1, characterized in that: The grinding structure (820) includes a grinding motor (822) mounted on a support frame (810). The output shaft of the grinding motor (822) faces downward, and a grinding brush (824) is detachably connected to the output shaft of the grinding motor (822). Guide rods (823) are fixedly connected to the support frame (810) on both the left and right sides of the grinding motor (822). The guide rods (823) are horizontally arranged in the front-back direction, and the grinding motor (822) is slidably mounted on the guide rods (823). Above the grinding motor (822) is a translation structure for driving the grinding motor (822) to move horizontally, so that the grinding brush (824) can move in the front-back direction and grind the end face of the plate.

3. The grinding device for processing building decoration materials according to claim 2, characterized in that: The translation structure is a rodless cylinder (821) fixedly installed on the load-bearing frame (810).

4. The grinding device for processing building decoration materials according to claim 2, characterized in that: The gripping structure (830) includes two symmetrically arranged gripping cylinders (831). A gripper (832) is fixedly connected to the telescopic shaft of the gripping cylinder (831). The gripping cylinder (831) has a gripping position and a release position in its telescopic stroke. When the gripping cylinder (831) is in the gripping position, it extends and the gripper (832) is locked on the front and rear sides of the plate. The friction between the gripper (832) and the plate drives the right end face grinding mechanism (800) and the left end face grinding mechanism (500) to slide. When the gripping cylinder (831) is in the release position, it retracts and the gripper (832) separates from the plate. The reset mechanism (900) drives the right end face grinding mechanism (800) and the left end face grinding mechanism (500) to reset.

5. The grinding device for processing building decoration materials according to claim 4, characterized in that: The inner side of the gripper (832) is fixedly connected to an anti-slip pad (833) for protecting the plate and increasing friction.

6. The grinding device for processing building decoration materials according to claim 4, characterized in that: The reset mechanism (900) includes a fixed frame (910) fixedly installed on the guide rail (400). The fixed frame (910) is located between the right end face grinding mechanism (800) and the left end face grinding mechanism (500). A damping rod (920) is provided between the fixed frame (910) and the right end face grinding mechanism (800). The two ends of the damping rod (920) are connected to the fixed frame (910) and the right end face grinding mechanism (800) respectively. A reset spring (930) is also sleeved on the damping rod (920).

7. The grinding device for processing building decoration materials according to claim 6, characterized in that: A photoelectric sensor (700) is provided between the fourth traction roller group (140) and the right end face grinding mechanism (800).

8. The grinding device for processing building decoration materials according to claim 1, characterized in that: The outer surfaces of the rollers of the first traction roller group (110), the third traction roller group (130) and the fourth traction roller group (140) are all provided with anti-slip textures to increase friction.

9. A grinding method for processing building decoration materials, employing the grinding device for processing building decoration materials as described in claim 7, characterized in that, Includes the following steps: S1. Feeding: The cut sheet material is conveyed to the grinding device via an external conveying device; S2. Side grinding: The first traction roller group (110) pulls the plate forward, and the roller brush of the longitudinal grinding brush group (200) rotates at high speed to grind the front and rear sides of the plate. S3. Grinding the top and bottom surfaces, the third traction roller group (130) continues to pull the plate forward, and the transverse grinding brush group (300) grinds the top and bottom surfaces of the plate. S4. Polishing the left and right end faces. After the photoelectric sensor (700) detects the plate, the gripping cylinder (831) of the right end face polishing mechanism (800) and the left end face polishing mechanism (500) extends, and the two grippers (832) clamp the two sides of the plate, so that the plate moves synchronously with the right end face polishing mechanism (800) and the left end face polishing mechanism (500). At the same time, the grinding motor (822) starts to drive the grinding brush (824) to rotate, and the rodless cylinder (821) drives the grinding motor (822) to move in the front and back direction to grind the entire end face of the plate. After the grinding is completed, the gripping cylinder (831) retracts, the gripper (832) separates from the plate, and the reset spring (930) pulls the right end face grinding mechanism (800) and the left end face grinding mechanism (500) to reset.

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