A new type of door leaf grinding equipment

Abstract

A new type of door leaf grinding equipment relates to the technical field of plate surface grinding, comprising a frame frame, an upper roller frame, a lower roller frame, a side grinding device, a plate surface grinding device, a grain grinding device and a control box; the side grinding device can be adjusted to adapt to the width of the door leaf and then grind the two sides of the door leaf; a thickness adjustment mechanism is provided between the upper roller frame and the lower roller frame; the plate surface grinding assembly comprises a positioning assembly frame, both ends of the positioning assembly frame are connected with transition plates, one end of the transition plate is hinged to the corresponding frame tube; the grain grinding assembly comprises a fixed assembly frame, a movable assembly frame, a lifting mechanism and a grain grinding mechanism, the two ends of the fixed assembly frame are respectively detachably fixedly connected to the corresponding two frame tubes, the movable assembly frame is correspondingly connected to the fixed assembly frame through the lifting mechanism, and can be vertically lifted, moved and positioned relative to the fixed assembly frame; the door leaf grinding equipment has a reasonable layout and a compact structure, which greatly improves the grinding effect while reducing the cost, operation difficulty and maintenance difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of plate surface grinding, and in particular to a novel door leaf grinding device. Background Art

[0002] Existing door panels, especially anti-theft doors or fireproof doors, generally use steel, stainless steel or other composite materials as the outer panel material to ensure their structural strength. Therefore, during the processing, it is necessary to use a wire brush to grind and clean the outer surface of the door panel, which is conducive to subsequent surface spraying. The applicant disclosed a double-sided door panel grinder in a Chinese patent with the announcement number CN209190492U. The outer surface of the door panel is cleaned by brushes at multiple angles, which effectively improves the quality of rust removal and lays a solid foundation for the quality assurance of spraying.

[0003] However, in the process of using the traditional grinder by the door leaf manufacturers, many problems were discovered and reported: First, the patterns on the surface of the door leaf are deep or shallow, and the complexity is also different. The traditional grinder has limitations for grinding the patterns on the door leaf, and there will be problems such as unclean grinding or incomplete grinding; Second, the traditional grinder has side roller brushes, forward roller brushes, left and right flat brushes, front and back flat brushes, reverse roller brushes, forward flat brushes and backward flat brushes. Although there are many grinding structures, the whole machine is too large and complicated, which not only increases the equipment cost and operation difficulty, but also does not achieve the best grinding effect; Third, because the grinding roller brushes are symmetrically arranged up and down and the arrangement length is also long, the difficulty of replacing and repairing the grinding roller brushes is greatly increased. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a novel door leaf grinding device with reasonable layout and compact structure, which greatly improves the grinding effect while reducing the cost, operation difficulty and maintenance difficulty.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] A novel door leaf grinding equipment comprises a square frame frame, an upper roller frame, a lower roller frame, a side grinding device, a board surface grinding device, a grain grinding device and a control box; the control box is installed at the top of the entrance end of the square frame frame, the side grinding device is installed in the middle of the entrance end of the square frame frame, and can be adjusted to adapt to the width of the door leaf and then grind the two sides of the door leaf; the upper roller frame and the lower roller frame are horizontally arranged in the middle of the square frame frame correspondingly from top to bottom, and the upper roller frame and the lower roller frame each comprise two frame tubes, and a plurality of rows of conveying rollers installed between the two frame tubes and used to convey the door leaf from the entrance end to the exit end of the square frame frame, the two frame tubes of the lower roller frame are fixedly connected to the frame frame correspondingly, and a thickness adjustment mechanism is provided between the upper roller frame and the lower roller frame; the board surface grinding device comprises two groups of symmetrical rollers respectively arranged above the upper roller frame and a board surface grinding assembly below the lower roller frame, the board surface grinding assembly comprising a positioning assembly frame, both ends of the positioning assembly frame are detachably and fixedly connected with transition plates, one end of the transition plate is hinged to the corresponding frame tube by a hinge, and enables the board surface grinding assembly to be rotated and opened toward one end of the square frame; the grain grinding device comprises two groups of symmetrical grain grinding assemblies respectively arranged above the upper roller frame and below the lower roller frame, the grain grinding assembly comprises a fixed assembly frame, a movable assembly frame, a lifting mechanism and a grain grinding mechanism, the two ends of the fixed assembly frame are respectively detachably and fixedly connected to the corresponding two frame tubes, the movable assembly frame is correspondingly connected to the fixed assembly frame through the lifting mechanism, and can be vertically lifted, moved and positioned relative to the fixed assembly frame, and the grain grinding mechanism is installed on the movable assembly frame and is used to grind the grain of the door panel surface.

[0007] Furthermore, the side grinding device includes a slider guide mechanism, a ball screw mechanism and two groups of side grinding assemblies, the two ends of the guide rail of the slider guide mechanism are respectively fixedly connected to the two frame tubes of the lower roller frame, the two ends of the lead screw of the ball screw mechanism are respectively rotatably connected to the two frame tubes of the lower roller frame, and one end of the lead screw rotates through the corresponding frame tube and is connected to a lead screw motor that can drive the lead screw to rotate; the side grinding assembly includes a square frame and an axially vertical side roller brush, the two ends of the side roller brush are respectively rotatably connected to the top plate and bottom plate of the square frame, the bottom end of the side roller brush is connected to the side brush motor, and the bottom of the square frame is fixedly connected to the slider of the slider guide mechanism; the square frame of one group of side grinding assemblies is fixedly connected to the balls of the ball screw mechanism.

[0008] Furthermore, a guide rod is fixed to the side of the square assembly frame corresponding to the entrance end of the square frame rack, the outer end of the guide rod is bent toward the outside of the square frame rack, and a ranging probe for measuring the distance change between the guide rod and the corresponding side of the square frame rack is installed on the square frame rack.

[0009] Furthermore, the thickness adjustment mechanism includes four screw-nut mechanisms correspondingly arranged below the two ends of the two frame tubes of the upper roller frame, the outer wall of the nut sleeve of the screw-nut mechanism is fixedly connected to the corresponding tube body of the frame tube of the lower roller frame, the top end of the screw of the screw-nut mechanism is installed in the bearing frame through a bearing, the bearing frame is fixed to the corresponding end of the frame tube of the upper roller frame, and a synchronous gear is coaxially fixed to the lower part of the screw of the screw-nut mechanism, the four synchronous gears are connected through a synchronous chain transmission, and the bottom end of the screw of one of the screw-nut mechanisms is correspondingly connected to the output shaft of the screw motor.

[0010] Furthermore, the positioning assembly frame of the board surface grinding assembly includes two symmetrical fixed end plates and at least two side-by-side main frame, the bottom of the fixed end plate is fixedly connected to the corresponding transition plate by bolts, the two ends of the main frame are rotatably connected to the top of the fixed end plate by pins, and the surface of the fixed end plate is evenly distributed with a plurality of positioning holes for positioning the rotation angle of the main frame around the pin.

[0011] Furthermore, each main frame is provided with a plurality of plate surface roller brushes evenly spaced along the axial direction of the conveying roller, and the plate surface roller brushes on adjacent main frames are arranged in a staggered manner, and the plate surface roller brushes on the same main frame are driven to rotate by the same plate surface brush motor.

[0012] Furthermore, the fixed assembly frame 9301 of the grain grinding assembly is in an inverted U shape, and a dual-output shaft motor is installed in the center of the top surface of the fixed assembly frame. Two worm gear elevators are symmetrically installed at both ends of the top surface of the fixed assembly frame. The output shafts at both ends of the dual-output shaft motor are respectively connected to the worm gear transmission of the two worm gear elevators, and the lower ends of the worm gears of the two worm gear elevators are rotatably installed in the bearing seats through bearings. The two bearing seats are respectively fixedly connected to the two ends of the movable assembly frame.

[0013] Furthermore, at least one row of texture roller brush groups is installed on the movable group frame of the texture grinding component, and the texture roller brush group includes a plurality of texture roller brushes evenly spaced along the axial direction of the conveying roller, and the brush head of the texture roller brush is a conical structure with a small top and a large bottom.

[0014] Furthermore, the corresponding ends of the multiple rows of conveying rollers of the lower roller frame are sequentially connected through a gear chain mechanism and are driven to rotate by a conveying roller motor.

[0015] Furthermore, a frame top plate is provided on the top surface of the square frame rack, a dust suction pipe is connected to the frame top plate surface, and frame wall panels that can be rotated and lifted up to open outwards are provided on the upper parts of both side surfaces and the upper parts of both end surfaces of the square frame rack.

[0016] Furthermore, the side roller brush, plate surface roller brush or plate surface rolling brush is mainly composed of a wire wheel, a wire brush, wear-resistant wire and a gauze strip.

[0017] Furthermore, the corresponding positions of the roller brushes of the plate surface grinding device and the grain grinding device can be flexibly exchanged.

[0018] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0019] The novel door leaf grinding device disclosed in the present invention reasonably arranges and integrates the upper roller frame, the lower roller frame, the thickness adjustment mechanism, the side grinding device, the plate surface grinding device, the grain grinding device and the control box in a square frame frame, so that the structure of the entire grinding device is more compact, more integrated and more beautiful, which not only improves the grinding stability and grinding effect of the upper and lower plates, grains and sides of the door leaf, but also makes the movement of the upper roller frame for vertical lifting and lowering adjustment to adapt to the thickness of the door leaf and the movement of the side grinding device for adjusting the width of the door leaf more stable, which is conducive to improving the overall The grinding accuracy of the body is improved; the grain grinding mechanism of the grain grinding assembly is vertically lifted and lowered by setting a lifting mechanism, so that the grinding equipment can adapt to the grinding of grains of different depths and complexities of door leaves, greatly improving the adaptability and grinding effect of grain grinding; at the same time, the transition plate is hinged with the corresponding frame pipe through a hinge, so that the board surface grinding assembly can be rotated and opened toward one end of the square frame, and the board surface grinding device and the grain grinding device are detachably fixedly connected with the corresponding upper roller frame and lower roller frame, which reduces the difficulty of maintenance and replacement of the equipment and makes the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the present invention;

[0021] Figure 2 is a structural schematic diagram of the board surface grinding assembly;

[0022] Figure 3 is a schematic diagram of the structure of the grain grinding assembly;

[0023] Figure 4 is a schematic structural diagram of the side grinding device;

[0024] Figure 5 is a structural schematic diagram of the square frame rack;

[0025] Figure 6 Schematic diagram of the structure of the thickness adjustment mechanism.

[0026] In the figure: 1. Frame frame; 101. Frame top plate; 102. Dust suction pipe; 103. Frame wall plate; 2. Plate surface grinding assembly; 201. Transition plate; 202. Fixed end plate; 2021. Positioning hole; 203. Plate surface brush motor; 204. Plate surface roller brush; 205. Main frame; 206. Pin shaft; 207. Hinge; 3. Grain grinding assembly; 301. Fixed assembly frame; 302. Movable assembly frame; 303. Lifting mechanism; 3031. Dual output shaft motor; 3032. Worm gear lifter; 304. Grain grinding mechanism; 304 1. Grain roller brush; 3042. Grain brush motor; 4. Side grinding device; 401. Side grinding assembly; 4011. Square assembly frame; 4012. Side roller brush; 4013. Side brush motor; 402. Slider guide mechanism; 403. Screw motor; 404. Ball screw mechanism; 405. Guide rod; 5. Upper roller frame; 6. Lower roller frame; 601. Conveyor roller motor; 7. Thickness adjustment mechanism; 701. Screw nut mechanism; 702. Bearing frame; 703. Synchronous gear; 704. Synchronous chain; 705. Screw motor; 8. Control box. DETAILED DESCRIPTION

[0027] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. The present invention is not limited to the following embodiments. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction:

[0028] Combined with Figure 1-6 The novel door leaf grinding device comprises a square frame 1, an upper roller frame 5, a lower roller frame 6, a side grinding device 4, a plate surface grinding device, a grain grinding device and a control box 8; as needed, a frame top plate 101 is provided on the top surface of the square frame 1, and a dust suction pipe 102 is connected to the frame top plate 101. The upper part of the two side surfaces and the upper part of the two end surfaces of the square frame 1 are provided with a frame wall plate 103 that can be rotated and lifted up to open outward. When the frame wall plate 103 is closed, it forms a cover body with the frame top plate 101, which can not only increase the integrity and aesthetics of the equipment, but also absorb the dust generated when the equipment is working, reduce environmental pollution, and facilitate opening the frame wall plate 103 to repair the equipment; in addition, the opening mode of the frame wall plate 103 can be set to be automatically pushed open and closed by an electric push rod, and controlled by the control box 8, which improves the convenience of operation;

[0029] The control box 8 is installed at the top of the entrance end of the square frame frame 1, which is convenient for personnel to perform control operations at the entrance end. The side grinding device 4 is installed in the middle of the entrance end of the square frame frame 1, and can be adjusted to adapt to the width of the door leaf and then grind the two sides of the door leaf; according to needs, the side grinding device 4 includes a slider guide mechanism 402, a ball screw mechanism 404 and two sets of side grinding assemblies 401, the two ends of the guide rail of the slider guide mechanism 402 are respectively fixedly connected to the two frame tubes of the lower roller frame 6, the two ends of the lead screw of the ball screw mechanism 404 are respectively rotatably connected to the two frame tubes of the lower roller frame 6, and one end of the lead screw rotates through the corresponding frame tube and is connected to a device that can drive the lead screw to rotate. The side grinding assembly 401 comprises a square assembly frame 4011 and an axially vertical side roller brush 4012, the two ends of the side roller brush 4012 are respectively rotatably connected to the top plate and the bottom plate of the square assembly frame 4011, and the bottom end of the side roller brush 4012 is connected to a side brush motor 4013, which is controlled by the control box 8 to start the side brush motor 4013, thereby driving the side roller brush 4012 to rotate and grind the side of the door leaf, and the bottom of the square assembly frame 4011 is fixedly connected to the slider of the slider guide mechanism 402, so that the entire side grinding assembly 401 can be fixed firmly, and when moving along the guide rail of the slider guide mechanism 402, it can also move horizontally. The invention relates to a method for making the side grinding assembly 401 stable and conducive to improving the grinding accuracy and grinding effect; the square assembly frame 4011 of one group of side grinding assemblies 401 is fixedly connected with the balls of the ball screw mechanism 404, and the ball screw mechanism 404 provides power for the movement of the side grinding assemblies 401 of the group, while the other group of side grinding assemblies 401 is immovable as a reference, and the control box 8 controls the opening and closing of the screw motor 403, thereby controlling the ball screw mechanism 404 to drive the corresponding side grinding assemblies 401 to move. During the control, the control box 8 can be used for inching control to gradually adjust the spacing between the two side grinding assemblies 401 to adapt to the width of the door leaf, and the door leaf can also be directly input into the control box 8 for the movement of the side grinding assemblies 401. The width value is directly controlled by the control box 8; in addition, a guide rod 405 is fixed on the side of the entrance end of the square frame frame 1 corresponding to the square frame frame 4011, and the outer end of the guide rod 405 is bent toward the outside of the square frame frame 1. The function of the guide rod 405 is mainly to guide the door leaf to enter the side grinding device 4 in a straight position, so as to improve the grinding effect. A distance measuring probe for measuring the distance change between the guide rod 405 and the corresponding side of the square frame frame 1 is installed on the square frame frame 1. The distance measuring probe can detect the moving position of the corresponding side grinding assembly 401, and the distance measuring probe feeds back the measurement information to the control box 8, so that the control box 8 can control the opening and closing action of the screw motor 403;

[0030] The upper roller frame 5 and the lower roller frame 6 are horizontally arranged in the middle of the square frame 1 correspondingly from top to bottom, and the upper roller frame 5 and the lower roller frame 6 each include two frame tubes, and multiple rows of conveying rollers installed between the two frame tubes and used to convey the door leaf from the entrance end to the exit end of the square frame 1; as needed, the corresponding ends of the multiple rows of conveying rollers of the lower roller frame 6 are sequentially connected through a gear chain mechanism, and are driven to rotate by a conveying roller motor 601 for conveying the door leaf, and the gear chain mechanism can be hidden in the frame tube of the lower roller frame 6; the two frame tubes of the lower roller frame 6 are fixedly connected to the square frame 1 correspondingly, and a thickness adjustment mechanism 7 is provided between the upper roller frame 5 and the lower roller frame 6; as needed, the thickness adjustment mechanism 7 includes four screw nut mechanisms 701 correspondingly arranged below the two ends of the two frame tubes of the upper roller frame 5, the outer wall of the nut sleeve of the screw nut mechanism 701 is fixedly connected to the corresponding tube body of the frame tube of the lower roller frame 6, and the screw nut mechanism The top of the screw rod 701 is installed in the bearing frame 702 through a bearing, and the bearing frame 702 is fixed to the corresponding upper roller frame 5 frame tube end, and the lower part of the screw rod of the screw rod nut mechanism 701 is coaxially fixed with a synchronous gear 703, and the four synchronous gears 703 are connected through a synchronous chain 704. Since the synchronous chain 704 is long, a tensioning wheel can be arranged in the middle to tension the synchronous chain 704, and the bottom end of the screw rod of one of the screw rod nut mechanisms 701 is connected to the output shaft of the screw motor 705, and the screw motor 705 is started by the control box 8, thereby driving the screw rod of the corresponding screw rod nut mechanism 701 to rotate. Under the transmission action of the synchronous gear 703 and the synchronous chain 704, the screw rods of the four screw rod nut mechanisms 701 are rotated and lifted at the same time, ensuring that the upper roller frame 5 can be lifted and lowered smoothly, which is not only suitable for door leaves of different thicknesses, but also conducive to improving the grinding effect;

[0031] The plate surface grinding device comprises two groups of symmetrical plate surface grinding components 2 which are respectively arranged above the upper roller frame 5 and below the lower roller frame 6. The plate surface grinding component 2 comprises a positioning frame. Both ends of the positioning frame are detachably fixedly connected with a transition plate 201. One end of the transition plate 201 is hinged to the corresponding frame pipe by a hinge 207, so that the plate surface grinding component 2 can be rotated and opened toward one end of the square frame 1, which reduces the difficulty of maintenance and replacement of the equipment and makes the operation more convenient. In addition, the plate surface of the transition plate 201 can be detachably fixed to the corresponding frame pipe by bolts, so as to facilitate the stable connection when closed. In addition, The transition plate 201 can be set as an angle steel plate to limit the width when closed to prevent shaking; as needed, two plate surface grinding devices are provided, and are respectively arranged on both sides of the grain grinding device, and the plate surface grinding assemblies 2 of the two plate surface grinding devices are rotated to open to the side away from the grain grinding device; as needed, the positioning assembly frame of the plate surface grinding assembly 2 includes two symmetrical fixed end plates 202 and at least two side-by-side main frame 205, the bottom of the fixed end plate 202 is fixedly connected to the corresponding transition plate 201 by bolts, and the two ends of the main frame 205 are respectively connected to the The top of the fixed end plate 202 is rotatably connected, and the fixed end plate 202 has a plurality of positioning holes 2021 evenly distributed around the circumference of the pin shaft 206 for positioning the rotation angle of the main frame 205. Of course, the main frame 205 also needs to be evenly distributed around the circumference of the positioning holes 2021, so that the angle of the main frame 205 can be rotated and adjusted according to the needs of grinding, thereby adjusting the grinding angle of the plate surface roller brush 204. When adjusted in place, the main frame 205 is positioned by inserting bolts in the positioning holes 2021. In addition, each main frame 205 is evenly spaced along the axial direction of the conveyor roller. A plurality of plate surface roller brushes 204 are arranged at intervals, and the plate surface roller brushes 204 on adjacent main frame 205 are arranged in a staggered manner. For example, two adjacent main frame 205 are respectively provided with 4 and 5 plate surface roller brushes 204. After staggering, it can be ensured that the entire plate surface of the door leaf can be polished in place, and a polishing gap is prevented from appearing between two adjacent plate surface roller brushes 204. The plate surface roller brushes 204 on the same main frame 205 are driven to rotate by the same plate surface brush motor 203 through a pulley transmission pair, which can simplify components and reduce costs; the plate surface polishing component 2 can also be set to a drum-type plate surface brush structure as needed;

[0032] The grain grinding device comprises two groups of symmetrical grain grinding components 3 respectively arranged above the upper roller frame 5 and below the lower roller frame 6. The grain grinding component 3 comprises a fixed frame 301, a movable frame 302, a lifting mechanism 303 and a grain grinding mechanism 304. The two ends of the fixed frame 301 are respectively detachably fixedly connected to the two corresponding frame tubes. The movable frame 302 is correspondingly connected to the fixed frame 301 through the lifting mechanism 303, and can be vertically lifted, moved and positioned relative to the fixed frame 301. The grain grinding mechanism 304 is installed on the movable frame 302 and is used to grind the grain of the door panel surface. By setting the lifting mechanism 303 The grain grinding mechanism 304 of the grain grinding component 3 is vertically lifted and lowered, so that the grinding equipment can adapt to the grains of different depths and complexities of the door leaf for grinding, greatly improving the adaptability and grinding effect of the grain grinding; according to needs, the fixed assembly frame 9301 of the grain grinding component 3 is in an inverted U shape, and a dual-output shaft motor 3031, such as a hollow shaft motor, is installed in the center of the top surface of the fixed assembly frame 301, and two turbine worm elevators 3032 are symmetrically installed at both ends of the top surface of the fixed assembly frame 301, and the output shafts at both ends of the dual-output shaft motor 3031 are respectively connected to the turbine transmission of the two turbine worm elevators 3032 The lower ends of the worm shafts of the two worm gear lifters 3032 are rotatably installed in the bearing seats through bearings. The two bearing seats are fixedly connected to the two ends of the movable assembly frame 302 respectively. The two ends of the movable assembly frame 302 can be lifted and lowered synchronously to improve the grinding effect. In order to ensure the stability of the lifting and lowering of the movable assembly frame 302, a slide rail and slider mechanism can be set between the two ends of the movable assembly frame 302 and the two ends of the fixed assembly frame 301 to ensure that the movable assembly frame 302 is lifted and lowered smoothly; in order to facilitate automatic adjustment of the lifting distance of the movable assembly frame 302, a distance measuring probe for measuring the distance change between the movable assembly frame 302 and the fixed assembly frame 301 can be installed; in addition, the grain grinding At least one row of textured roller brush groups is installed on the movable assembly frame 302 of component 3, and the textured roller brush group includes a plurality of textured roller brushes 3041 evenly spaced along the axial direction of the conveying roller. The brush head of the textured roller brush 3041 is a conical structure with a small top and a large bottom. The conical structure makes the outer end of the steel wire more fluffy and better adaptable to the complex texture of the door leaf for grinding. According to needs, the side roller brush, the plate roller brush or the plate roller brush is mainly composed of a wire wheel, a wire brush, a wear-resistant wire and a gauze strip, which can increase the grinding effect. In addition, the corresponding positions of the roller brushes of the plate grinding device and the texture grinding device can be flexibly exchanged, and the overall structure can be flexibly arranged to achieve the best grinding effect.

[0033] Parts of the present invention not described in detail are prior art.

Claims

1. A door leaf grinding device, characterized in that: The invention comprises a square frame frame (1), an upper roller frame (5), a lower roller frame (6), a side grinding device (4), a plate surface grinding device, a grain grinding device and a control box (8); the control box (8) is installed at the top of the entrance end of the square frame frame (1); the side grinding device (4) is installed at the middle of the entrance end of the square frame frame (1) and can be adjusted to adapt to the width of the door leaf and then grind the two sides of the door leaf; the upper roller frame (5) and the lower roller frame (6) are arranged horizontally in the middle of the square frame frame (1) corresponding to each other, and the upper roller frame (5) and the lower roller frame (6) each comprise two frame tubes, and a support member installed between the two frame tubes and used to grind the two sides of the door leaf. The door leaf is transported from the entrance end to the exit end of the square frame frame (1) by multiple rows of conveying rollers, and the corresponding ends of the multiple rows of conveying rollers of the lower roller frame (6) are sequentially connected through a gear chain mechanism and driven to rotate by a conveying roller motor (601); the two frame pipes of the lower roller frame (6) are correspondingly fixedly connected to the square frame frame (1), and a thickness adjustment mechanism (7) is provided between the upper roller frame (5) and the lower roller frame (6); the plate surface grinding device comprises two groups of symmetrical plate surface grinding components (2) respectively arranged above the upper roller frame (5) and below the lower roller frame (6), and the plate surface grinding component (2) comprises a positioning group frame, and both ends of the positioning group frame are A transition plate (201) is detachably fixedly connected, one end of the transition plate (201) is hinged to the corresponding frame tube via a hinge (207), and enables the plate surface grinding assembly (2) to be rotated and opened toward one end of the square frame frame (1); the grain grinding device comprises two groups of grain grinding assemblies (3) which are symmetrical and respectively arranged above the upper roller frame (5) and below the lower roller frame (6); the grain grinding assembly (3) comprises a fixed assembly frame (301), a movable assembly frame (302), a lifting mechanism (303) and a grain grinding mechanism (304); the two ends of the fixed assembly frame (301) are respectively hinged to the corresponding two frame tubes. The movable assembly frame (302) is connected to the fixed assembly frame (301) via a lifting mechanism (303) and can be vertically lifted, moved and positioned relative to the fixed assembly frame (301). The grain polishing mechanism (304) is mounted on the movable assembly frame (302) and is used to polish the grain of the door leaf plate surface. At least one row of grain roller brush groups is mounted on the movable assembly frame (302) of the grain polishing assembly (3). The grain roller brush group includes a plurality of grain roller brushes (3041) evenly spaced along the axial direction of the conveying roller. The brush head of the grain roller brush (3041) is a conical structure with a small top and a large bottom.

2. The door leaf grinding device according to claim 1 is characterized in that: The side grinding device (4) comprises a slider guide rail mechanism (402), a ball screw mechanism (404) and two sets of side grinding components (401), wherein the two ends of the guide rail of the slider guide rail mechanism (402) are respectively fixedly connected to the two frame tubes of the lower roller frame (6), the two ends of the lead screw of the ball screw mechanism (404) are respectively rotatably connected to the two frame tubes of the lower roller frame (6), and one end of the lead screw rotatably passes through the corresponding frame tube and is connected to a lead screw motor (403) capable of driving the lead screw to rotate; the side grinding component (401) comprises It comprises a square frame (4011) and an axially vertical side roller brush (4012), wherein the two ends of the side roller brush (4012) are rotatably connected to the top plate and the bottom plate of the square frame (4011), the bottom end of the side roller brush (4012) is connected to a side brush motor (4013), and the bottom of the square frame (4011) is fixedly connected to a slider of a slider guide mechanism (402); the square frame (4011) of one set of side grinding components (401) is fixedly connected to the ball of a ball screw mechanism (404).

3. The door leaf grinding device according to claim 2 is characterized in that: A guide rod (405) is fixed to the side of the square assembly frame (4011) corresponding to the entrance end of the square frame rack (1), the outer end of the guide rod (405) is bent toward the outside of the square frame rack (1), and a distance measuring probe for measuring the change in the distance between the guide rod (405) and the corresponding side of the square frame rack (1) is installed on the square frame rack (1).

4. The door leaf grinding device according to claim 1 is characterized in that: The thickness adjustment mechanism (7) comprises four screw nut mechanisms (701) correspondingly arranged below the two ends of the two frame tubes of the upper roller frame (5); the outer wall of the nut sleeve of the screw nut mechanism (701) is fixedly connected to the corresponding tube body of the frame tube of the lower roller frame (6); the top end of the screw of the screw nut mechanism (701) is installed in the bearing frame (702) through a bearing; the bearing frame (702) is fixed to the corresponding end of the frame tube of the upper roller frame (5); a synchronous gear (703) is coaxially fixed to the lower part of the screw of the screw nut mechanism (701); the four synchronous gears (703) are connected by transmission through a synchronous chain (704); and the bottom end of the screw of one of the screw nut mechanisms (701) is correspondingly connected to the output shaft of the screw motor (705).

5. The door leaf grinding device according to claim 1 is characterized in that: The positioning assembly frame of the plate surface grinding component (2) comprises two symmetrical fixed end plates (202) and at least two parallel main frame frames (205), the bottom of the fixed end plates (202) being fixedly connected to the corresponding transition plates (201) by bolts, the two ends of the main frame (205) being rotatably connected to the top of the fixed end plates (202) by pins (206), and the plate surface of the fixed end plates (202) is evenly distributed around a circle with the pins (206) as the center, for locating the rotation angle of the main frame (205).

6. The door leaf grinding device according to claim 5 is characterized in that: Each main frame (205) is provided with a plurality of plate surface roller brushes (204) evenly spaced apart along the axial direction of the conveying roller, and the plate surface roller brushes (204) on adjacent main frames (205) are arranged in a staggered manner, and the plate surface roller brushes (204) on the same main frame (205) are driven to rotate by the same plate surface brush motor (203).

7. The door leaf grinding device according to claim 1 is characterized in that: The fixed assembly frame (301) of the grain grinding component (3) is in an inverted U shape, a dual-output shaft motor (3031) is mounted in the center of the top surface of the fixed assembly frame (301), two turbine worm gear lifts (3032) are symmetrically mounted at both ends of the top surface of the fixed assembly frame (301), the output shafts at both ends of the dual-output shaft motor (3031) are respectively connected to the turbines of the two turbine worm gear lifts (3032), the lower ends of the worm gears of the two turbine worm gear lifts (3032) are both rotatably mounted in the bearing seats via bearings, and the two bearing seats are respectively fixedly connected to the two ends of the movable assembly frame (302).

8. The door leaf grinding device according to claim 1 is characterized in that: The top surface of the square frame frame (1) is provided with a frame top plate (101), the frame top plate (101) is connected to a dust suction pipe (102), and the upper parts of both side surfaces and both end surfaces of the square frame frame (1) are provided with frame wall panels (103) that can be rotated and lifted up to open outwards.

Images