Sanding device for medium-density fiberboard processing

Abstract

The invention relates to the technical field of sanding equipment, in particular to a medium-density fiberboard processing and sanding device which comprises a sanding box body, and a roller conveyor is arranged on the inner bottom surface of the sanding box body. And then a pushing assembly is used for pushing and feeding one of the remaining two cabinet doors, the problems of feeding difficulty and abrasion caused by too large stacking pressure are avoided, integrated linkage of the stacking and feeding mechanism and the multi-direction clamping mechanism is achieved, the cabinet doors made of the medium-density fiberboards are clamped and fixed in a multi-stage mode through a second clamping plate, and the cabinet doors are clamped and fixed in a multi-stage mode through a second clamping plate. The clamping stability is high, the upper face and the lower face of the cabinet door made of the medium-density fiberboard are synchronously ground through the double-face reciprocating sanding mechanism, the grinding efficiency is high, the upper sanding and grinding assembly and the lower sanding and grinding assembly move in a staggered and reciprocating mode, and the grinding effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of sanding equipment, in particular to a medium density fiberboard processing sanding device. Background Art

[0002] Medium-density fiberboard is a common man-made board material. It is usually made of wood fiber or other plant fiber as raw materials. It undergoes a series of processing processes, including slicing, cooking, fiber separation, and drying, followed by applying urea-formaldehyde resin or other suitable adhesives, and then heating and pressing. Medium-density fiberboard is widely used in many fields due to its excellent flatness, strength and processability. Medium-density fiberboard is often used to make furniture such as kitchen cabinets and wardrobe doors. After the wardrobe doors made of medium-density fiberboard are grooved and carved on the surface, sanding and polishing are required to remove burrs and scratches on the surface. Therefore, medium-density fiberboard processing sanding devices are required for polishing. However, the existing medium-density fiberboard processing sanding devices have the following problems during use:

[0003] 1. In the process of automated sanding and polishing, wardrobe doors made of existing medium-density fiberboard are usually loaded manually or by a material-grabbing robot. Manual loading is inefficient, and the robot needs to grab the material and then move it horizontally, which makes the equipment occupy a large area. The method of pushing the material from the bottom with a push cylinder after the material is stacked successfully avoids the defects of the above two loading methods. However, due to the heavy weight of the medium-density fiberboard itself, the pressure on the bottom of the medium-density fiberboard after multiple medium-density fiberboards are stacked is too large, so the method of pushing the material from the bottom with a push cylinder is more difficult, and pushing the material under excessive pressure will cause wear on the surface of the wardrobe door made of medium-density fiberboard.

[0004] 2. The areas that need to be polished on the existing wardrobe doors made of medium-density fiberboard are the upper and lower surfaces. In the process of polishing the wardrobe doors made of medium-density fiberboard, the existing equipment usually combines two single-sided polishing devices to sand and polish the upper and lower surfaces of the wardrobe doors made of medium-density fiberboard respectively. That is, after the upper surface of the door is polished, it is continued to be conveyed along the conveyor belt to the second polishing component for polishing the lower surface of the door. The polishing efficiency is low and time-consuming.

[0005] 3. When the existing wardrobe doors made of medium-density fiberboard are polished, they need to be fixed and clamped by a special clamp, which is usually clamped and fixed by clamping on both sides. This clamping method has poor stability. During the polishing process, the wardrobe doors made of medium-density fiberboard (hereinafter referred to as doors) will shake, reducing the polishing quality. Summary of the invention

[0006] The object of the present invention is to provide a medium density fiberboard processing sanding device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medium-density fiberboard processing sanding device, comprising a sanding box, a roller conveyor is arranged inside the sanding box, and a multi-directional clamping mechanism for clamping and fixing cabinet doors is arranged on the roller conveyor, a double-sided reciprocating sanding mechanism for double-sided sanding of the cabinet doors is arranged on the right inner wall of the sanding box, a feed port is opened on the left side of the sanding box, a discharge port is opened on the front side of the sanding box, a loading conveyor is arranged on the left side of the roller conveyor, a unloading conveyor is arranged on the right side of the roller conveyor, and a stacking and loading mechanism for stacking and loading cabinet doors is arranged on the front side of the loading conveyor.

[0008] The stacking feeding mechanism comprises a base, which is arranged at the front side of the feeding conveyor, a pushing assembly is arranged at the front side of the base, a clamping and moving upward assembly is arranged at the bottom of the base, and a clamping execution assembly is arranged on the clamping and moving upward assembly.

[0009] The multi-directional clamping mechanism includes a driving assembly and a side clamping assembly. The side clamping assembly is arranged on the top of the driving assembly. The driving assembly includes a No. 1 hydraulic cylinder. The No. 1 hydraulic cylinder is fixedly installed on the bottom surface of the sanding box, and a No. 2 supporting plate is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder. Two side plates are symmetrically installed on the top of the No. 2 supporting plate, and a bidirectional screw rod is connected between the two side plates for common rotation.

[0010] The double-sided reciprocating sanding mechanism includes a telescopic component and a reciprocating component. The reciprocating component is arranged on the left side of the telescopic component. The telescopic component includes a No. 2 cylinder. The No. 2 cylinder is fixedly connected to the right inner wall of the sanding box. The output end of the No. 2 cylinder is fixedly connected to a fixed arm. A mounting plate is fixedly installed on the left front side of the fixed arm, and a reciprocating component is arranged on the front side of the mounting plate.

[0011] Preferably, the pushing assembly includes a fixed seat, which is fixedly installed at the center of the front side of the base, a No. 1 cylinder is fixedly connected to the top of the fixed seat, and a pushing plate for loading the cabinet door is fixedly connected to the output end of the No. 1 cylinder, and two No. 1 supporting plates are symmetrically installed on the left and right sides of the front of the pushing plate, a stacking box is fixedly installed on the top of the base, and cabinet doors are stacked inside the stacking box, two No. 2 through grooves are symmetrically opened on the left and right sides of the stacking box, rectangular through grooves are opened on the bottom of the front and rear sides of the stacking box, and four guide angle irons are symmetrically installed at the four corners of the top of the stacking box, and four No. 1 supporting legs are symmetrically installed at the four corners of the bottom of the base.

[0012] Preferably, the clamping upward moving assembly includes a fixed block, which is fixedly installed at the bottom center of the base, and a guide rod is fixedly passed through the center of the fixed block. The clamping execution assembly includes clamping arms arranged on the left and right sides of the stacking box, and the guide rod slides left and right and passes through the middle and lower part of the clamping arm, and the left and right sides of the guide rod are respectively fixedly connected with stoppers, and the left and right ends of the guide rod are respectively fixedly sleeved with No. 1 springs, which are installed between the fixed block and the clamping arm, and the ends of the tops of the two clamping arms that are close to each other are fixedly connected with the clamping blocks, and the bottom ends of the two clamping arms are respectively fixedly connected with the fixed plate and the No. 1 movable arm A limit groove No. 1 is provided in the middle of the fixed plate, and the No. 1 movable arm is slidably connected to the inside of the limit groove No. 1, and the No. 2 movable arm is fixedly connected to the bottom of the fixed plate, and the opposite surfaces of the No. 1 movable arm and the No. 2 movable arm are fixedly connected with fixed wedges, and the lower parts of the opposite surfaces of the two fixed wedges are slidably fitted with movable wedges, and the bottom of the movable wedges is fixedly connected with a linkage arm, and a No. 1 through groove is provided on the front side of the sanding box body, and the end of the linkage arm away from the movable wedge block movably passes through the No. 1 through groove and is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder, and the linkage arm is fixedly connected to a No. 1 reinforcing rib plate at the corner away from the stacking box.

[0013] Preferably, a servo motor is fixedly connected to the side panel located on the rear side, and the output end of the servo motor is fixedly connected to the bidirectional lead screw, and the front and rear ends of the bidirectional lead screw are respectively threadedly connected to movable blocks through ball nuts, and the top centers of the two movable blocks are fixedly connected to a vertical plate, and a V-shaped arm is fixedly connected to the top of the vertical plate, and a No. 3 movable rod slides through the middle of the V-shaped arm, and the opposite ends of the two No. 3 movable rods are fixedly connected to a No. 2 clamping plate for clamping and fixing the cabinet door, and a No. 3 spring is sleeved and fixed in the middle of the No. 3 movable rod, and the No. 3 spring is installed between the V-shaped arm and the No. 2 clamping plate, and the ends of the two No. 3 movable rods away from each other are fixedly connected to a retaining ring, and the opposite surfaces of the two V-shaped arms are fixedly connected to clamping angle irons, and the left and right ends of the No. 2 supporting plate are fixedly connected to extrusion clamping assemblies.

[0014] Preferably, the extrusion clamping assembly includes a No. 2 fixing frame, the two No. 2 fixing frames are fixedly connected to the No. 2 supporting plate symmetrically, the middle of the top horizontal section of the No. 2 fixing frame slides through a No. 1 movable rod, the outer periphery of the No. 1 movable rod is sleeved and fixed with a No. 2 spring, the ends of the two No. 1 movable rods close to each other are fixedly connected to the No. 1 clamping plate, the ends of the two No. 1 movable rods away from each other are fixedly connected with a stopper, the No. 2 spring is installed between the stopper and the No. 2 fixing frame, the top horizontal sections of the two No. 2 fixing frames slide symmetrically frontward and rearward and penetrate the No. 2 movable rod The movable rod, one end of the two No. 2 movable rods on the same No. 2 fixed frame close to the No. 2 clamping plate is fixedly connected to the No. 1 clamping plate together, the two No. 2 movable rods on the same No. 2 fixed frame away from the No. 1 clamping plate are fixedly connected with a circular driven extrusion head at one end, the left and right ends of the two V-shaped arms are fixedly connected to the No. 1 fixed frame at the back faces, the end of the No. 1 fixed frame away from the V-arm is fixedly connected with an arc-shaped active extrusion head, and two L-shaped rods are fixedly connected to the right side of the No. 2 supporting plate symmetrically front and back, and the tops of the two L-shaped rods are fixedly connected to the No. 1 limiting plate.

[0015] Preferably, the right side wall of the sanding box is fixedly connected with a No. 3 reinforcing rib, the upper end surface of the No. 3 reinforcing rib is fixedly connected with a No. 2 limiting slide rail, and the bottom of the mounting plate is slidably connected to the No. 2 limiting slide rail through a slider.

[0016] Preferably, the reciprocating assembly includes a No. 1 limit slide rail, which is symmetrically fixedly connected to the front side of the mounting plate, and the front sides of the two No. 1 limit slide rails are slidably connected with a No. 2 rack and a No. 1 rack through sliders, and a spur gear is meshed between the No. 2 rack and the No. 1 rack, and the spur gear is rotatably connected to the front side of the mounting plate, and two fixing pins are fixedly connected to the right end of the No. 1 rack, and a No. 2 limit plate is commonly arranged on the front sides of the two fixing pins, and a sliding groove is opened in the middle of the No. 2 limit plate, and a U-shaped frame is fixedly connected to the middle of the front side of the mounting plate, and a driving motor is fixedly connected to the middle of the front side of the U-shaped frame, and a swing arm is fixedly connected to the output end of the driving motor, and the end of the swing arm away from the driving motor is fixedly connected to the limiting pin, and the limit pin is slidably connected to the inside of the sliding groove, and the left sides of the No. 2 rack and the No. 1 rack are both fixedly connected with double-sided grinding components.

[0017] Preferably, the double-sided grinding assembly includes a fixed frame, the left sides of the No. 2 rack and the No. 1 rack are fixedly connected to the fixed frame, the left side of the fixed frame is fixedly connected to a fixed roller, the right side of the fixed frame is provided with a No. 2 limiting groove, the inside of the No. 2 limiting groove is slidably connected with a fixed screw, the rear side of the fixed screw is fixedly connected with a tensioning roller, the tensioning roller is fixedly connected to the front side of the No. 2 limiting groove by a fixed screw and a nut, the right sides of the two fixed frames and the corresponding No. 2 rack and No. 1 rack are commonly fixedly connected with a No. 2 reinforcing rib, and a grinding belt for grinding the cabinet door is commonly arranged between the tensioning roller and the fixed roller.

[0018] Preferably, a plurality of No. 2 supporting legs are installed at the bottom of the loading conveyor, the roller conveyor and the unloading conveyor, and a guide plate is fixedly connected symmetrically to the left and right sides of the top front side of the unloading conveyor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts a stacking loading method through a stacking loading mechanism, the equipment is small in size and high in loading efficiency, and the clamping and moving upward component is used to drive the clamping execution component to clamp and move upward most of the stacked cabinet doors, and then the pushing component is used to push the bottom cabinet door for loading, thereby avoiding the problem of loading difficulties caused by excessive stacking pressure and avoiding wear during pushing. The cabinet door is clamped and moved upward by the No. 1 hydraulic cylinder, thereby realizing the integrated linkage of the stacking loading mechanism and the multi-directional clamping mechanism.

[0021] 2. The present invention clamps and fixes the side of the cabinet door through the No. 2 clamping plate, thereby realizing the primary clamping and fixation of the cabinet door, and utilizes the clamping angle iron to clamp and fix the four corners of the cabinet door, thereby realizing the secondary clamping and fixation of the cabinet door. Finally, the cabinet door is clamped at the tertiary level using the extrusion clamping assembly, thereby realizing the multi-level clamping and fixation of the cabinet door. The clamping stability is good, the shaking problem during the grinding process is avoided, and the grinding quality is improved.

[0022] 3. The present invention uses a double-sided reciprocating sanding mechanism to simultaneously polish the upper and lower surfaces of the cabinet door, without the need to polish them separately. The polishing efficiency is high, and the upper and lower sanding components perform staggered reciprocating motions, and the polishing forces offset each other, further improving the polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereoscopic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a partially cutaway stereoscopic view of the overall structure of the present invention.

[0025] Figure 3 It is a stereoscopic diagram of the stacking and loading mechanism and the linkage arm of the present invention.

[0026] Figure 4 For the present invention Figure 3 A magnified schematic diagram of area A in the middle.

[0027] Figure 5 It is a front view of the stacking and loading mechanism and the linkage arm of the present invention.

[0028] Figure 6 It is a schematic diagram of the multi-directional clamping mechanism and roller conveyor of the present invention from a first perspective.

[0029] Figure 7It is a schematic diagram from a second viewing angle of the multi-directional clamping mechanism and the roller conveyor of the present invention.

[0030] Figure 8 This is a first viewing angle diagram of the double-sided reciprocating sanding mechanism of the present invention.

[0031] Fig. 9 For the present invention Figure 8 Enlarged schematic diagram of area B in the middle.

[0032] Fig.10 This is a second viewing angle diagram of the double-sided reciprocating sanding mechanism of the present invention.

[0033] In the figure: 1, sanding box; 2, feeding conveyor; 3, stacking feeding mechanism; 31, base; 32, pusher assembly; 321, pusher plate; 322, No. 1 cylinder; 323, No. 1 support plate; 324, fixed seat; 33, No. 1 support leg; 34, clamping and moving assembly; 341, No. 1 spring; 342, guide rod; 343, fixed plate; 344, No. 1 movable arm; 345, fixed wedge block; 346, movable wedge block; 347, No. 1 limit slot; 348, No. 2 movable arm; 349, fixed block; 35, clamping actuator assembly ; 351, clamping block; 352, clamping arm; 36, guide angle iron; 37, stacking box; 38, No. 2 through slot; 4, No. 1 through slot; 5, unloading conveyor; 6, double-sided reciprocating sanding mechanism; 61, double-sided grinding assembly; 611, grinding belt; 612, fixed frame; 613, fixed roller; 614, tensioning roller; 615, No. 2 limit slot; 616, fixed screw; 62, reciprocating assembly; 621, driving motor; 622, No. 1 rack; 623, spur gear; 624, U-shaped frame; 625, No. 1 limit slide rail; 62 6. No. 2 rack; 627. No. 2 limit plate; 628. Limit pin; 629. Swing arm; 63. No. 2 reinforcing rib; 64. Telescopic assembly; 641. No. 3 reinforcing rib; 642. No. 2 limit rail; 643. No. 2 cylinder; 644. Fixed arm; 645. Mounting plate; 7. Multi-directional clamping mechanism; 71. Driving assembly; 711. No. 1 hydraulic cylinder; 712. No. 2 supporting plate; 713. Bidirectional screw rod; 714. Movable block; 715. Side plate; 716. Vertical plate; 717. Servo motor; 72. L-shaped rod; 73. Limiting plate No. 1; 74, extrusion clamping assembly; 741, No. 1 fixing frame; 742, No. 1 clamping plate; 743, arc-shaped active extrusion head; 744, circular driven extrusion head; 745, No. 1 movable rod; 746, No. 2 spring; 747, No. 2 movable rod; 748, No. 2 fixing frame; 75, side clamping assembly; 751, clamping angle iron; 752, V-shaped arm; 753, No. 3 spring; 754, No. 3 movable rod; 755, No. 2 clamping plate; 8, guide plate; 9, No. 1 reinforcing rib plate; 10, linkage arm; 11, roller conveyor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 , Figure 2 and Figure 6 A medium density fiberboard processing sanding device comprises a sanding box 1, a roller conveyor 11 is arranged inside the sanding box 1, and a multi-directional clamping mechanism 7 for clamping and fixing a cabinet door is arranged on the roller conveyor 11, a double-sided reciprocating sanding mechanism 6 for double-sided sanding of the cabinet door is arranged on the right inner wall of the sanding box 1, a feed port is opened on the left side of the sanding box 1, a discharge port is opened on the front side of the sanding box 1, a loading conveyor 2 is arranged on the left side of the roller conveyor 11, a unloading conveyor 5 is arranged on the right side of the roller conveyor 11, and a loading conveyor 2 is arranged on the front side of the loading conveyor 2. A stacking and loading mechanism 3 for stacking and loading cabinet doors, a loading conveyor 2, a roller conveyor 11 and a discharge conveyor 5 are all installed with a plurality of No. 2 supporting legs at the bottom, and a material guide plate 8 is fixedly connected symmetrically to the left and right sides of the top front side of the discharge conveyor 5. During use, the stacking and loading mechanism 3 is used for stacking loading, the loading conveyor 2 is used for conveying and loading, the multi-directional clamping mechanism 7 is used for multi-level clamping and fixing of the cabinet doors, and then the double-sided reciprocating sanding mechanism 6 is used to perform two-way reciprocating and staggered grinding of the cabinet doors. After grinding, the discharge conveyor 5 is used for conveying and unloading.

[0036] See also Figure 2 , Figure 6 and Figure 7The multi-directional clamping mechanism 7 includes a driving component 71 and a side clamping component 75. The side clamping component 75 is arranged on the top of the driving component 71. The driving component 71 includes a No. 1 hydraulic cylinder 711. The No. 1 hydraulic cylinder 711 is fixedly installed on the bottom surface of the sanding box 1, and the top of the output end of the No. 1 hydraulic cylinder 711 is fixedly connected to a No. 2 supporting plate 712. Two side plates 715 are symmetrically installed on the top of the No. 2 supporting plate 712, and a bidirectional screw rod 713 is connected to the two side plates 715 for common rotation. A servo motor 717 is fixedly connected to the side plate 715 at the rear side. The output end of the servo motor 717 is fixedly connected to the bidirectional screw rod 713. The front and rear ends of the bidirectional screw rod 713 are respectively connected to movable The movable block 714 has a vertical plate 716 fixedly connected to the top center of the two movable blocks 714, a V-shaped arm 752 fixedly connected to the top of the vertical plate 716, a No. 3 movable rod 754 slidingly penetrates the middle of the V-shaped arm 752, and the opposite ends of the two No. 3 movable rods 754 are fixedly connected with a No. 2 clamping plate 755 for clamping and fixing the cabinet door, a No. 3 spring 753 is sleeved and fixed in the middle of the No. 3 movable rod 754, and the No. 3 spring 753 is installed between the V-shaped arm 752 and the No. 2 clamping plate 755, and the ends of the two No. 3 movable rods 754 away from each other are fixedly connected with a retaining ring, and the opposite surfaces of the two V-shaped arms 752 are fixedly connected with clamping angle irons 751, and the left and right ends of the No. 2 supporting plate 712 are fixedly connected with extrusion clamping assemblies 74.

[0037] See also Figure 6 and Figure 7 The extrusion clamping assembly 74 includes a No. 2 fixing frame 748, and the two No. 2 fixing frames 748 are fixedly connected to the No. 2 supporting plate 712 symmetrically on the left and right. The middle part of the top horizontal section of the No. 2 fixing frame 748 slides through the No. 1 movable rod 745, and the No. 2 spring 746 is fixedly sleeved on the outer periphery of the No. 1 movable rod 745. The ends of the two No. 1 movable rods 745 that are close to each other are fixedly connected to the No. 1 clamping plate 742, and the ends of the two No. 1 movable rods 745 that are away from each other are fixedly connected to the stopper, and the No. 2 spring 746 is installed between the stopper and the No. 2 fixing frame 748. The top horizontal sections of the two No. 2 fixing frames 748 slide symmetrically front and back and penetrate the No. 2 movable rod 747. The two No. 2 movable rods 747 on the No. 2 fixed frame 748 are fixedly connected to the No. 1 clamping plate 742 at one end close to the No. 2 clamping plate 755, and the two No. 2 movable rods 747 on the same No. 2 fixed frame 748 are fixedly connected to the circular driven extrusion head 744 at one end away from the No. 1 clamping plate 742, the two V-shaped arms 752 are fixedly connected to the No. 1 fixed frame 741 at the back sides of the left and right ends, and the No. 1 fixed frame 741 is fixedly connected to the end away from the V-shaped arm 752 with an arc-shaped active extrusion head 743, and the right side of the No. 2 supporting plate 712 is symmetrically fixedly connected with two L-shaped rods 72, and the tops of the two L-shaped rods 72 are fixedly connected to the No. 1 limiting plate 73.

[0038] See also Figure 2 and Figure 3 The stacking and loading mechanism 3 includes a base 31, which is arranged at the front side of the loading conveyor 2, a pushing assembly 32 is arranged at the front side of the base 31, a clamping and moving assembly 34 is arranged at the bottom of the base 31, and a clamping actuator assembly 35 is arranged on the clamping and moving assembly 34, and the pushing assembly 32 includes a fixed seat 324, the fixed seat 324 is fixedly installed at the center of the front side of the base 31, a No. 1 cylinder 322 is fixedly connected to the top of the fixed seat 324, and a pushing plate 321 for loading the cabinet door is fixedly connected to the output end of the No. 1 cylinder 322, and two No. 1 supporting plates 323 are symmetrically installed on the left and right sides of the front side of the pushing plate 321, a stacking box 37 is fixedly installed on the top of the base 31, and cabinet doors are stacked inside the stacking box 37, two No. 2 through grooves 38 are symmetrically opened on the left and right sides of the stacking box 37, rectangular through grooves are opened at the bottom of the front and rear sides of the stacking box 37, and four guide angle irons 36 are installed at the four corners of the top of the stacking box 37, and four No. 1 supporting legs 33 are installed at the four corners of the bottom of the base 31.

[0039] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 The clamping and moving assembly 34 includes a fixed block 349, which is fixedly installed at the bottom center of the base 31, and a guide rod 342 is fixedly passed through the center of the fixed block 349. The clamping execution assembly 35 includes clamping arms 352 arranged on the left and right sides of the stacking box 37. The guide rod 342 slides left and right and passes through the middle and lower part of the clamping arm 352, and the left and right ends of the guide rod 342 are respectively fixedly connected with stoppers, and the left and right sides of the guide rod 342 are respectively fixedly sleeved with No. 1 springs 341, which are installed between the fixed block 349 and the clamping arm 352. The ends of the tops of the two clamping arms 352 that are close to each other are fixedly connected with the clamping blocks 351 for clamping and moving the cabinet door upward, and the bottom ends of the two clamping arms 352 are respectively fixedly connected with the fixing plates 343 and No. 1 movable arm 344, a No. 1 limit groove 347 is provided in the middle of the fixed plate 343, the No. 1 movable arm 344 is slidably connected to the inside of the No. 1 limit groove 347, and a No. 2 movable arm 348 is fixedly connected to the bottom of the fixed plate 343. The opposite surfaces of the No. 1 movable arm 344 and the No. 2 movable arm 348 are fixedly connected with fixed wedge blocks 345, and the lower parts of the opposite surfaces of the two fixed wedge blocks 345 are slidably fitted with movable wedge blocks 346. The bottom of the movable wedge block 346 is fixedly connected with a linkage arm 10, and a No. 1 through groove 4 is provided on the front side of the sanding box body 1. The end of the linkage arm 10 away from the movable wedge block 346 is movable and passes through the No. 1 through groove 4 and is fixedly connected to the output end of the No. 1 hydraulic cylinder 711. The linkage arm 10 is fixedly connected to a No. 1 reinforcing rib 9 at the corner away from the stacking box 37.

[0040] During the working process of the stacking and loading mechanism 3, the cabinet doors are first stacked into the stacking box 37 by manual or mechanical loading. In the initial state, the clamping arms 352 are separated from each other by the elastic force of the No. 1 spring 341, and the clamping block 351 is not in contact with the stacking box 37. At this time, the No. 1 hydraulic cylinder 711 is started, and the output end of the No. 1 hydraulic cylinder 711 rises, which immediately drives the linkage arm 10 to rise, and then drives the movable wedge block 346 to rise. The movable wedge block 346 is used to push upward to drive the fixed wedge block 345 to move away from each other and move upward, and then drives the No. 1 movable arm 344 and the No. 2 movable arm 348 to move away from each other and rise, and then drives the clamping arm 352 to move upward while clamping in the center, and then drives the clamping block 351 to clamp in the center and move upward The cabinet doors inside the stacking box 37 are moved, and the clamping block 351 is used to stably clamp the cabinet doors inside the stacking box 37 and then move upward, leaving two cabinet doors at the bottom of the stacking box 37. Then the output end of the No. 1 cylinder 322 is extended, thereby driving the pushing plate 321 away from the No. 1 cylinder 322, and then the cabinet doors at the bottom are pushed onto the feeding conveyor 2 through the rectangular through groove, thereby realizing the pushing and feeding of the cabinet doors. The clamping upward moving component 34 and the clamping execution component 35 in the stacking feeding mechanism 3 are used to clamp and push most of the cabinet doors upward, thereby avoiding the problems of difficulty in feeding and surface wear caused by excessive stacking pressure. After feeding, the No. 1 hydraulic cylinder 711 moves downward to release the clamping of the cabinet doors, and the multi-directional clamping mechanism 7 and the stacking feeding mechanism 3 share a driving source, thereby realizing the integrated linkage between the two.

[0041] During the use of the multi-directional clamping mechanism 7, after the cabinet door is loaded through the stacking loading mechanism 3, the cabinet door is transported to the sanding box 1 through the loading conveyor 2, enters the roller conveyor 11 from the feeding port in the sanding box 1, and continues to be intermittently transported forward by the roller conveyor 11, and then the No. 1 limit plate 73 is used to block and limit. After blocking and limiting, the roller conveyor 11 stops conveying. At this time, the output end of the No. 1 hydraulic cylinder 711 moves downward, driving the No. 2 supporting plate 712 to move downward, and at the same time drives the extrusion clamping assembly 74 and the side clamping assembly 75 to move downward until they reach the working position. At this time, the servo motor 717 rotates forward, driving the bidirectional screw rod 713 to rotate, driving the vertical plate 716 to move in the center, and then driving the V-shaped arm 752 and the No. 3 movable rod 754 and the No. 2 clamping plate 755 thereon to move in the center, using the two The No. 1 clamping plate 755 clamps and fixes the side of the cabinet door, realizing the first-level clamping and fixing. During the clamping process, the No. 3 spring 753 is compressed until the clamping angle iron 751 positions and clamps the four corners of the cabinet door, realizing the second-level clamping and fixing of the cabinet door. While the V-shaped arm 752 moves in the center, it will drive the No. 1 fixing frame 741 to move in the center, and then drive the arc-shaped active extrusion head 743 to extrude in the center, and then the arc-shaped active extrusion head 743 extrude the circular driven extrusion head 744, thereby driving the circular driven extrusion head 744 to move toward the cabinet door through extrusion, and then drive the No. 1 clamping plate 742 to move toward the cabinet door, thereby realizing the three-level clamping and fixing of the cabinet door by using the No. 1 clamping plate 742, realizing the multi-level clamping and fixing of the cabinet door, and the clamping stability is strong, which effectively avoids the problem of shaking during grinding.

[0042] See also Figure 2 and Figure 8 The double-sided reciprocating sanding mechanism 6 includes a telescopic component 64 and a reciprocating component 62. The reciprocating component 62 is arranged on the left side of the telescopic component 64. The telescopic component 64 includes a No. 2 cylinder 643. The No. 2 cylinder 643 is fixedly connected to the right inner wall of the sanding box 1. The output end of the No. 2 cylinder 643 is fixedly connected to a fixed arm 644. A mounting plate 645 is fixedly installed on the left front side of the fixed arm 644. The reciprocating component 62 is arranged on the front side of the mounting plate 645. The right side wall of the sanding box 1 is fixedly connected to a No. 3 reinforcing rib 641. The upper end surface of the No. 3 reinforcing rib 641 is fixedly connected to a No. 2 limiting slide rail 642. The bottom of the mounting plate 645 is slidably connected to the No. 2 limiting slide rail 642 through a slider.

[0043] See also Figure 8 and Fig. 9The reciprocating assembly 62 includes a No. 1 limit rail 625, and the front side of the mounting plate 645 is symmetrically fixedly connected to the No. 1 limit rail 625. The front sides of the two No. 1 limit rails 625 are respectively slidably connected to the No. 2 rack 626 and the No. 1 rack 622 through sliders. A spur gear 623 is meshed between the No. 2 rack 626 and the No. 1 rack 622. The spur gear 623 is rotatably connected to the front side of the mounting plate 645. The right end of the No. 1 rack 622 is fixedly connected to two fixing pins. The front sides of the two fixing pins are jointly provided with a No. 2 rack. A limiting plate 627, a sliding groove is provided in the middle of the No. 2 limiting plate 627, a U-shaped frame 624 is fixedly connected to the middle of the front side of the mounting plate 645, a driving motor 621 is fixedly connected to the middle of the front side of the U-shaped frame 624, a swing arm 629 is fixedly connected to the output end of the driving motor 621, and the end of the swing arm 629 away from the driving motor 621 is fixedly connected to the limiting pin 628, the limiting pin 628 is slidably connected inside the sliding groove, and the left sides of the No. 2 rack 626 and the No. 1 rack 622 are fixedly connected to the double-sided grinding assembly 61.

[0044] See also Figure 8 and Fig.10 The double-sided grinding assembly 61 includes a fixed frame 612, the left sides of the No. 2 rack 626 and the No. 1 rack 622 are fixedly connected to the fixed frame 612, the left side of the fixed frame 612 is fixedly connected to the fixed roller 613, the right side of the fixed frame 612 is provided with a No. 2 limiting groove 615, the interior of the No. 2 limiting groove 615 is slidably connected with a fixing screw 616, the rear side of the fixing screw 616 is fixedly connected with a tensioning roller 614, the tensioning roller 614 is fixedly connected to the front side of the No. 2 limiting groove 615 by a fixing screw 616 and a nut, the right sides of the two fixed frames 612 and the corresponding No. 2 rack 626 and the No. 1 rack 622 are jointly fixedly connected with a No. 2 reinforcing rib 63, and a grinding belt 611 for grinding the cabinet door is jointly arranged between the tensioning roller 614 and the fixed roller 613.

[0045] During the use of the double-sided reciprocating sanding mechanism 6, after the cabinet door is stably clamped by the multi-directional clamping mechanism 7, the output end of the No. 1 hydraulic cylinder 711 rises, and the extrusion clamping assembly 74 and the side clamping assembly 75 are driven upward by the driving assembly 71, thereby driving the stably clamped cabinet door to rise and move to the initial position. At this time, the clamped cabinet door is located between the upper and lower double-sided sanding assemblies 61, and the thickness of the cabinet door clamped by the multi-directional clamping mechanism 7 is smaller than its own thickness. At this time, the output end of the No. 2 cylinder 643 extends out, driving the fixed arm 644 to move in a direction away from the No. 2 cylinder 643, driving the reciprocating assembly 62 and the double-sided sanding assembly 61 to The second limit plate 627 is moved to the left along with the movement of the limit pin 628, and the first rack 622 is moved to the left, and then the fixed frame 612 at the bottom is moved to the left, and the grinding belt 611 at the bottom is moved to the left. The movement of the first rack 622 drives the spur gear 623 to rotate, and then drives the second rack 626 to the right. The movement drives the sanding belt 611 at the top to move rightward. As the limit pin 628 moves downward, the rack 622 at the bottom is driven to move rightward, driving the sanding belt 611 at the bottom to move rightward, and further driving the sanding belt 611 at the top to move leftward, so that the sanding belt 611 can perform synchronous reciprocating and staggered sanding on the upper and lower surfaces of the cabinet door, which is convenient for synchronous sanding of the upper and lower surfaces, and the sanding efficiency is high. Due to the reciprocating and staggered sanding, the left and right forces on the upper and lower surfaces of the cabinet door offset each other, thereby improving the stability during the sanding process. When the sanding belt 611 needs to be replaced, the nut on the fixing screw 616 is turned. Loosen the nut fixing the tensioning roller 614, and then move the tensioning roller 614 along the No. 2 limit groove 615 toward the fixed roller 613, loosen the tension on the grinding belt 611, and then replace the grinding belt 611, and place the new grinding belt 611 between the fixed roller 613 and the tensioning roller 614, and finally use the tensioning roller 614 to tension and fix the grinding belt 611. After grinding is completed, the No. 2 cylinder 643 contracts, and the double-sided grinding assembly 61 is retracted and reset, and then the multi-directional clamping mechanism 7 is used to loosen the clamping of the cabinet door, and then the roller conveyor 11 is used to continue to convey the cabinet door, and then the unloading conveyor 5 is used for unloading.

[0046] Working principle: During use of the present invention, the cabinet doors that need to be loaded are first stacked into the stacking box 37, and then the output end of the No. 1 hydraulic cylinder 711 in the multi-directional clamping mechanism 7 is raised, driving the clamping and moving assembly 34 and the clamping execution assembly 35 to clamp most of the cabinet doors and lift them upward, and then the pushing assembly 32 is used to push one of the remaining two cabinet doors onto the loading conveyor 2, thereby realizing automatic loading of the cabinet doors. After loading, the output end of the No. 1 hydraulic cylinder 711 descends, and the stacking loading mechanism 3 releases the clamping of the cabinet door, and the multi-directional clamping mechanism 7 is integrated with the stacking loading mechanism 3, and then the loading conveyor 2 intermittently transports the cabinet door to the roller conveyor 11. At this time, the multi-directional clamping mechanism 7 performs multi-stage clamping on the cabinet door, and then the double-sided reciprocating sanding mechanism 6 is used to perform staggered reciprocating sanding on the upper and lower surfaces of the cabinet door. After the sanding is completed, the unloading conveyor 5 unloads the cabinet door that has been sanded.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A medium density fiberboard processing sanding device, comprising a sanding box (1), characterized in that: The sanding box (1) is provided with a roller conveyor (11) inside, and the roller conveyor (11) is provided with a multi-directional clamping mechanism (7) for clamping and fixing the cabinet door made of medium density fiberboard, the right inner wall of the sanding box (1) is provided with a double-sided reciprocating sanding mechanism (6) for double-sided sanding of the cabinet door made of medium density fiberboard, a feed port is provided on the left side of the sanding box (1), a discharge port is provided on the front side of the sanding box (1), a loading conveyor (2) is provided on the left side of the roller conveyor (11), a unloading conveyor (5) is provided on the right side of the roller conveyor (11), and a stacking and loading mechanism (3) for stacking and loading the cabinet doors made of medium density fiberboard is provided on the front side of the loading conveyor (2); The stacking and feeding mechanism (3) comprises a base (31), the base (31) is arranged on the front side of the feeding conveyor (2), a pushing assembly (32) is arranged on the front side of the base (31), a clamping and moving assembly (34) is arranged at the bottom of the base (31), and a clamping and executing assembly (35) is arranged on the clamping and moving assembly (34); The multi-directional clamping mechanism (7) comprises a driving assembly (71) and a side clamping assembly (75), wherein the side clamping assembly (75) is arranged on the top of the driving assembly (71), and the driving assembly (71) comprises a No. 1 hydraulic cylinder (711), wherein the No. 1 hydraulic cylinder (711) is fixedly mounted on the inner bottom surface of the sanding box (1), and a No. 2 supporting plate (712) is fixedly connected to the top of the output end of the No. 1 hydraulic cylinder (711), and two side plates (715) are symmetrically mounted on the top of the No. 2 supporting plate (712), and a bidirectional screw rod (713) is rotatably connected between the two side plates (715); The double-sided reciprocating sanding mechanism (6) comprises a telescopic component (64) and a reciprocating component (62), wherein the reciprocating component (62) is arranged on the left side of the telescopic component (64), and the telescopic component (64) comprises a No. 2 cylinder (643), wherein the No. 2 cylinder (643) is fixedly connected to the right inner wall of the sanding box (1), and the output end of the No. 2 cylinder (643) is fixedly connected to a fixed arm (644), and a mounting plate (645) is fixedly installed on the left front side of the fixed arm (644), and the reciprocating component (62) is arranged on the front side of the mounting plate (645).

2. A medium density fiberboard processing sanding device according to claim 1, characterized in that: The pusher assembly (32) comprises a fixed seat (324), the fixed seat (324) is fixedly mounted at the center of the front side of the base (31), a No. 1 cylinder (322) is fixedly connected to the top of the fixed seat (324), a pusher plate (321) for loading cabinet doors made of medium density fiberboard is fixedly connected to the output end of the No. 1 cylinder (322), two No. 1 supporting plates (323) are symmetrically mounted on the front side of the pusher plate (321), a stacking box (37) is fixedly mounted on the top of the base (31), and cabinet doors made of medium density fiberboard are stacked inside the stacking box (37), two No. 2 through grooves (38) are symmetrically arranged at the center of the left and right sides of the stacking box (37), rectangular through grooves are arranged at the bottom of the front and rear sides of the stacking box (37), four guide angle irons (36) are symmetrically mounted at the four corners of the top of the stacking box (37), and four No. 1 supporting legs (33) are symmetrically mounted at the four corners of the bottom of the base (31).

3. A medium density fiberboard processing sanding device according to claim 1, characterized in that: The clamping upward moving component (34) includes a fixed block (349), which is fixedly installed at the bottom center of the base (31), and a guide rod (342) is fixedly passed through the center of the fixed block (349). The clamping execution component (35) includes clamping arms (352) arranged on the left and right sides of the stacking box (37), and the guide rod (342) slides left and right and passes through the middle and lower parts of the clamping arms (352), and the left and right sides of the guide rod (342) are respectively fixedly connected with stoppers, and the left and right ends of the guide rod (342) are respectively fixedly sleeved with a No. 1 spring (341), and the No. 1 spring (341) is installed between the fixed block (349) and the clamping arm (352), and the ends of the tops of the two clamping arms (352) that are close to each other are fixedly connected with the clamping block (351), and the bottom ends of the two clamping arms (352) are respectively fixedly connected with a fixed plate (343) and a No. 1 movable arm (34 4), a No. 1 limit groove (347) is provided in the middle of the fixed plate (343), a No. 1 movable arm (344) is slidably connected inside the No. 1 limit groove (347), a No. 2 movable arm (348) is fixedly connected to the bottom of the fixed plate (343), the No. 1 movable arm (344) and the No. 2 movable arm (348) are fixedly connected to the opposite surfaces of the No. 1 movable arm (344) and the No. 2 movable arm (348), the lower parts of the opposite surfaces of the two fixed wedges (345) are slidably fitted with a movable wedge (346), the bottom of the movable wedge (346) is fixedly connected to a linkage arm (10), a No. 1 through groove (4) is provided on the front side of the sanding box (1), one end of the linkage arm (10) away from the movable wedge (346) is movably passed through the No. 1 through groove (4) and then fixedly connected to the top of the output end of the No. 1 hydraulic cylinder (711), and the corner of the linkage arm (10) away from the stacking box (37) is fixedly connected to a No. 1 reinforcing rib (9).

4. A medium density fiberboard processing sanding device according to claim 1, characterized in that: The side plate (715) located at the rear side is fixedly connected with a servo motor (717), the output end of the servo motor (717) is fixedly connected with the bidirectional screw rod (713), the front and rear ends of the bidirectional screw rod (713) are respectively threadedly connected with movable blocks (714) through ball nuts, the top centers of the two movable blocks (714) are fixedly connected with a vertical plate (716), the top of the vertical plate (716) is fixedly connected with a V-shaped arm (752), the middle of the V-shaped arm (752) is slidably penetrated by a third movable rod (754), and the opposite ends of the two third movable rods (754) are A second clamping plate (755) for clamping and fixing a cabinet door made of medium density fiberboard is fixedly connected, a third spring (753) is sleeved and fixedly connected to the middle of the third movable rod (754), the third spring (753) is installed between the V-shaped arm (752) and the second clamping plate (755), the ends of the two third movable rods (754) away from each other are fixedly connected with a retaining ring, the opposite surfaces of the two V-shaped arms (752) are fixedly connected with a clamping angle iron (751), and the left and right ends of the second supporting plate (712) are fixedly connected with an extrusion clamping assembly (74).

5. A medium density fiberboard processing sanding device according to claim 4, characterized in that: The extrusion clamping assembly (74) includes a No. 2 fixing frame (748), and the two No. 2 fixing frames (748) are fixedly connected to the No. 2 supporting plate (712) in a symmetrical manner on the left and right. A No. 1 movable rod (745) is slidably penetrated through the middle of the top horizontal section of the No. 2 fixing frame (748), and a No. 2 spring (746) is sleeved and fixed on the outer periphery of the No. 1 movable rod (745). The ends of the two No. 1 movable rods (745) that are close to each other are fixedly connected to the No. 1 clamping plate (742), and the ends of the two No. 1 movable rods (745) that are far away from each other are fixedly connected to a stopper, and the No. 2 spring (746) is installed between the stopper and the No. 2 fixing frame (748). The top horizontal sections of the two No. 2 fixing frames (748) are symmetrically slidably penetrated by the No. 2 movable rod (747), and the same No. The ends of the two No. 2 movable rods (747) on the fixing frame (748) close to the No. 2 clamping plate (755) are fixedly connected to the No. 1 clamping plate (742); the ends of the two No. 2 movable rods (747) on the same No. 2 fixing frame (748) away from the No. 1 clamping plate (742) are fixedly connected to a circular driven extrusion head (744); the ends of the two V-shaped arms (752) away from each other are fixedly connected to the No. 1 fixing frame (741) symmetrically on the left and right; the end of the No. 1 fixing frame (741) away from the V-shaped arm (752) is fixedly connected to an arc-shaped active extrusion head (743); two L-shaped rods (72) are fixedly connected to the right side of the No. 2 supporting plate (712) symmetrically front and back, and the tops of the two L-shaped rods (72) are fixedly connected to the No. 1 limiting plate (73).

6. A medium density fiberboard processing sanding device according to claim 1, characterized in that: The right side wall of the sanding box (1) is fixedly connected with a third reinforcing rib (641), the upper end surface of the third reinforcing rib (641) is fixedly connected with a second limiting slide rail (642), and the bottom of the mounting plate (645) is slidably connected to the second limiting slide rail (642) via a slider.

7. A medium density fiberboard processing sanding device according to claim 1, characterized in that: The reciprocating assembly (62) comprises a No. 1 limiting slide rail (625), the front side of the mounting plate (645) is symmetrically fixedly connected with the No. 1 limiting slide rail (625), the front sides of the two No. 1 limiting slide rails (625) are slidably connected with a No. 2 rack (626) and a No. 1 rack (622) through a slider, a spur gear (623) is meshed between the No. 2 rack (626) and the No. 1 rack (622), the spur gear (623) is rotatably connected to the front side of the mounting plate (645), the right end of the No. 1 rack (622) is fixedly connected with two fixing pins, and the front sides of the two fixing pins are jointly provided with a No. 2 limiting plate (627), a sliding groove is provided in the middle of the second limit plate (627), a U-shaped frame (624) is fixedly connected to the middle of the front side of the mounting plate (645), a driving motor (621) is fixedly connected to the middle of the front side of the U-shaped frame (624), a swing arm (629) is fixedly connected to the output end of the driving motor (621), and an end of the swing arm (629) away from the driving motor (621) is fixedly connected to a limit pin (628), the limit pin (628) is slidably connected inside the sliding groove, and the left sides of the second rack (626) and the first rack (622) are fixedly connected to the double-sided grinding assembly (61).

8. A medium density fiberboard processing sanding device according to claim 7, characterized in that: The double-sided grinding assembly (61) comprises a fixed frame (612), the left sides of the second rack (626) and the first rack (622) are fixedly connected to the fixed frame (612), the left side of the fixed frame (612) is fixedly connected to a fixed roller (613), the right side of the fixed frame (612) is provided with a second limiting groove (615), the interior of the second limiting groove (615) is slidably connected to a fixed screw (616), and the rear side of the fixed screw (616) is fixedly connected to a tensioning roller (613). The roller (614) and the tensioning roller (614) are fixedly connected to the front side of the second limiting groove (615) through a fixing screw (616) and a nut. The right sides of the two fixed frames (612) and the corresponding second rack (626) and the first rack (622) are fixedly connected with the second reinforcing rib (63). A grinding belt (611) for grinding the cabinet door made of medium-density fiberboard is provided between the tensioning roller (614) and the fixed roller (613).

9. The medium density fiberboard processing sanding device according to claim 1, characterized in that: The bottoms of the loading conveyor (2), the roller conveyor (11) and the unloading conveyor (5) are all equipped with a plurality of No. 2 supporting legs, and a guide plate (8) is fixedly connected to the front side of the top of the unloading conveyor (5) in a symmetrical manner.

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