A surface treatment apparatus for house board production

Abstract

This invention relates to the field of board surface processing, and discloses a surface treatment device for the production of furniture boards. It includes a vertically mounted board frame within a opposed frame, guided by guide rails on both sides, which slides relative to each other. The board material can be embedded into the vertically mounted board frame and simultaneously slides along the front working surface of the opposed frame. A positioning guide mechanism is fixed to the front of the central positioning frame. The positioning guide mechanism includes a limiting frame, and a top-pressing push plate is fixed to the top wall of the limiting frame. An inwardly inclined retraction ramp is provided at the bottom end of the limiting frame. Through the physical triggering of the positioning guide mechanism, the top-pressing push plate and the retraction ramp, along with the axial displacement of the linkage push shaft, synchronously complete the retraction and locking of the blade group and the pushing and unfolding of the new blade group, all at the end of the lifting stroke. The opposed frame design allows two sets of vertically mounted board frames to simultaneously carry the board material, and the central cylindrical mechanism performs simultaneous grinding on both sides, doubling the processing capacity per unit time.

Description

Technical Field

[0001] This invention relates to the field of surface processing technology for wood panels, specifically to a surface treatment device for the production of furniture wood panels. Background Technology

[0002] Solid wood boards are wood panels made from whole pieces of timber. They are generally classified according to their actual material name and do not have uniform standard specifications. Solid wood boards are distinguished from many non-solid wood boards, such as plywood and pressed board made from wood processing scraps, crop straw, rice husks, peanut shells, etc. Solid wood boards are sturdy and durable, with natural grain patterns, and often possess the unique aroma of natural wood. They have good moisture absorption and breathability, are beneficial to human health, and do not cause environmental pollution, making them a high-quality material for making high-end furniture and decorating homes.

[0003] Traditional board surface polishing processes often employ single-machine, single-sided operation, such as handheld sanders or single-sided through-feed sanders. This involves flipping, handling, and repositioning the board, consuming a significant amount of non-processing time, resulting in long production cycles and low overall efficiency. When manually sanding, it is difficult to maintain consistent pressure, speed, and trajectory, easily leading to uneven sanding, over-sanding, or under-sanding. Even with semi-automatic equipment, frequent handling of heavy boards can cause muscle and bone strain and poses a risk of mechanical injury. Changing sanding belts or abrasives of different grits requires manual operation after machine shutdown, which is time-consuming and affects equipment utilization. For complex processes requiring multiple abrasives, multiple machines must be added or frequent line changes must be made, resulting in poor flexibility. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a surface treatment device for the production of home furnishing panels, which solves the problems of low efficiency, unstable quality, high labor intensity, and low equipment utilization caused by the reliance on single-machine single-sided operation and a large amount of manual intervention in traditional panel surface polishing processes.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a surface treatment equipment for the production of home furnishing boards, including a counter-mounted frame, the counter-mounted frame being an upper and lower sliding table structure, and a control console being provided on one side; at the same time, guide rails with relatively distributed and independently displaced structures are provided on both sides inside the counter-mounted frame, and a center positioning frame is fixed at the center of the side wall of the counter-mounted frame.

[0006] The opposing frame has a vertical plate frame that slides relative to each other through a guide rail structure on both sides. The plate can be relatively embedded into the vertical plate frame and slide along the front working surface of the opposing frame into the opposing frame.

[0007] A positioning guide mechanism is fixed to the front side of the central positioning frame. The positioning guide mechanism includes a limiting frame, and a top pressing plate is fixed to the inner top wall of the limiting frame. An inwardly inclined retraction plate is provided at the bottom end of the limiting frame.

[0008] The center positioning frame slides a limiting slide, and the center cylinder placement mechanism and the switching drive mechanism are mounted in the opposing frame through the limiting slide.

[0009] The central cylinder placement mechanism includes a multi-position material cylinder and a tool holder. The tool holder is distributed on the multi-position material cylinder, and the grinding blades on the outside of the tool holder form interlaced and circumferentially distributed grinding teeth. The eccentric top bar on the inside of the multi-position material cylinder and the side-positioned groove at the side end form a pushing and retraction locking structure.

[0010] The switching drive mechanism includes a linkage push shaft, an inner tapered cylinder, and staggered clamping elements. The linkage push shaft is embedded in the multi-position material cylinder and rotates with the multi-position material cylinder. The inner tapered cylinder can contact the top pressure push plate and the return inclined plate. The central push cylinder in the middle of the linkage push shaft can contact the top pressure push plate and the return inclined plate. The staggered clamping elements contact the side-mounted groove.

[0011] Preferably, the guide rail guiding structure includes relatively distributed relative track platforms, and the two relative track platforms slide laterally along the bottom wall and top wall of the opposing frame, respectively. Meanwhile, guide wheels and support plates are provided inside the relative track platforms.

[0012] Preferably, the outer side of the vertical plate frame is provided with guide wheels and a top plate, and can slide along the inner side of the relative track platform. At the same time, a pusher groove is opened on the outer side of the vertical plate frame in the sliding direction.

[0013] Preferably, the plates installed on the vertical plate frame are distributed on both sides of the central tube placement mechanism, and the surfaces to be processed face the central tube placement mechanism at the same time.

[0014] Preferably, the side wall of the central positioning frame is provided with an electrically controlled guide rail element, and the output end is connected to the limiting slide to control the limiting slide, the central cylinder positioning mechanism and the switching drive mechanism to move back and forth in the longitudinal direction.

[0015] Preferably, the multi-position material cylinder is rotatably mounted on a limiting slide. The multi-position material cylinder is provided with circumferentially distributed fitting slots, and the number of fitting slots is even, so that the tool holder can be embedded in the fitting slots of the multi-position material cylinder in a circumferentially distributed manner. Each group of adjacent tool holders is arranged in a staggered manner to form two groups of tool holders that are staggered and also circumferentially distributed. The grinding disc blade can be detachably added to the tool holder. The eccentric top bar is fixed on the inner side of the tool holder and is adjacent to the middle of the tool holder. The side fitting slot is provided at the end of the tool holder. When adjacent tool holders are staggered, the installation positions of the side fitting slot and the eccentric top bar will be reversed simultaneously.

[0016] Preferably, the linkage push shaft is embedded and fixed in the multi-position material cylinder and is fitted into the multi-position material cylinder by a retaining strip. The inner tapered cylinder is fixed at one end of the linkage push shaft near the positioning guide mechanism, and the large diameter part of the inner tapered cylinder is located outside the small diameter part. The staggered clamping elements are arranged opposite to each other on both sides of the linkage push shaft. The staggered clamping elements are composed of locking ladder blocks that are circumferentially distributed and fixed on the surface of the linkage push shaft. The locking ladder blocks on both sides are staggered and arranged to correspond to the tool holder, and can be embedded into the side groove.

[0017] Preferably, the outer surface of the grinding disc blade is provided with strip-shaped grinding teeth and V-shaped grinding teeth.

[0018] Preferably, the installation distance of the top pressure push plate should be equal to the overall length of the tool holder, and the horizontal length of the retraction inclined plate should be greater than the overall length of the tool holder.

[0019] Preferably, the top of the opposing frame is provided with relatively distributed hydraulic drive elements, and the telescopic ends of the hydraulic drive elements are distributed to pull a set of opposing track platforms to slide within the opposing frame. The side of the limiting slide away from the positioning guide mechanism is provided with a motor drive element, and the motor drive element can control the rotation of the central cylinder mechanism through its output end.

[0020] This invention provides a surface treatment device for the production of furniture panels. It has the following beneficial effects:

[0021] 1. This invention achieves continuous production with zero interruption: Through the physical triggering of the positioning and guiding mechanism, the top pressure push plate and the return inclined plate, the axial displacement of the linkage push shaft are completed simultaneously, and the retraction and locking of the tool group and the top push and unfolding of the new tool group are completed at the end of the lifting stroke. This eliminates the downtime of traditional tool changing and is suitable for continuous production lines. The opposed frame design allows two sets of vertical plate frames to carry the plate at the same time. The central cylinder placement mechanism performs synchronous grinding on both sides, doubling the processing capacity per unit time.

[0022] 2. This invention integrates a graded grinding process: the strip-shaped grinding cutter set efficiently removes the uneven layer of the substrate, the groove design optimizes chip removal, the V-shaped grinding cutter set performs micron-level polishing, eliminates scratches and enhances surface gloss, and completes two-stage processing in a single stroke, avoiding positioning errors caused by traditional sequential processing. The hydraulic drive element independently adjusts the distance between the two sides of the plate and the grinding mechanism, precisely controls the grinding pressure, adapts to plates of different thicknesses and hardness, and avoids over-grinding or under-grinding.

[0023] 3. This invention has mechanical self-locking and failure prevention capabilities: the tool assembly has double insurance, the inner conical cylinder rigidly pushes the eccentric top bar to ensure that the tool assembly is fully deployed, the trapezoidal inclined surface of the locking block and the side-mounted groove form a mechanical hard lock to resist the centrifugal force of high-speed rotation, and the length of the retraction inclined plate is greater than the length of the tool assembly: to ensure that the inner conical cylinder is completely disengaged when the bottom is reset to avoid jamming, and the axial thrust of the eccentric top bar is efficiently converted into radial displacement to reduce energy loss. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main device of the present invention;

[0025] Figure 2 This is a schematic diagram of the device structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the vertically placed plate frame structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation state of the central tube mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the structural combination of the central tube placement mechanism and the positioning guide mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the central cylinder mechanism and the switching drive mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the two sets of tool holders distributed in the present invention;

[0031] Figure 8 This is a schematic diagram of the strip-shaped grinding disc blade structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the V-shaped grinding disc blade structure of the present invention;

[0033] Figure 10 This is a cross-sectional view of the internal structure of the multi-position barrel of the present invention;

[0034] Figure 11 This is a schematic diagram of the combined structure of the tool holder and the switching drive mechanism of the present invention;

[0035] Figure 12 This is a schematic diagram of the tool holder structure of the present invention;

[0036] Figure 13 This is a schematic diagram of the tool changing state of the present invention;

[0037] Figure 14 This is a schematic diagram of the switching drive mechanism of the present invention.

[0038] The components include: 1. Opposing frame; 2. Opposing track platform; 3. Vertical plate frame; 4. Center positioning frame; 5. Positioning guide mechanism; 6. Limiting slide; 7. Center cylinder placement mechanism; 8. Switching drive mechanism; 9. Hydraulic drive element; 10. Motor drive element; 51. Limiting frame; 52. Top pressure push plate; 53. Retracting inclined plate; 71. Multi-position material cylinder; 72. Tool holder; 73. Grinding disc blade; 74. Eccentric top bar; 75. Side-positioned groove; 81. Linkage push shaft; 82. Inner conical cylinder; 83. Center push cylinder; 84. Locking ladder block. Detailed Implementation

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a surface treatment device for the production of furniture boards, including a counter-frame 1. The counter-frame 1 has an upper and lower sliding table structure and a control console on one side. At the same time, the counter-frame 1 has guide rail structures that are relatively distributed and independently displaced on both sides inside. This is the main frame of the device, like a sturdy cage. The counter-frame 1 has opposing track tables 2 that can slide independently laterally on the left and right sides inside. The track tables have guide wheels and support plates inside to ensure smooth sliding. The front side of the frame is the working surface, which facilitates the feeding of the board. A center positioning frame 4 is fixed in the center of the side wall of the counter-frame 1.

[0041] Please see the appendix Figure 2 - Appendix Figure 4 The guide rail guiding structure includes relatively distributed relative track platforms 2, and the two relative track platforms 2 on both sides slide laterally along the bottom wall and top wall of the opposing frame 1 respectively. At the same time, guide wheels and support plates are provided inside the relative track platforms 2. The relative track platforms 2 have guide wheels and support plates inside to ensure smooth sliding. There is a hydraulic drive element 9 on each side of the top of the equipment, and their telescopic rods are connected to the relative track platforms 2 on the left and right sides respectively.

[0042] Please see the appendix Figure 2 - Appendix Figure 3 A vertical plate frame 3 is guided to slide relative to the opposing frame 1 by guide rails on both sides. The plate material can be embedded into the vertical plate frame 3 and slide along the front working surface of the opposing frame 1. The outer side of the vertical plate frame 3 is provided with guide wheels and a top plate, and can slide along the inside of the opposing track 2. At the same time, a pusher slot is opened on the outer side of the sliding direction of the vertical plate frame 3. The worker pushes the vertical plate frame 3 with the plate material into the equipment from the front side of the frame along the guide wheels and support plates inside the opposing track 2. The outer side of the vertical plate frame 3 also has guide wheels and a top plate, which slide in cooperation with the track 2. The plate material installed in the vertical plate frame 3 is distributed on both sides of the central cylinder placement mechanism 7, and the surface to be processed faces the central cylinder placement mechanism 7.

[0043] Please see the appendix Figure 2 - Appendix Figure 5 A positioning guide mechanism 5 is fixed to the front of the central positioning frame 4. The positioning guide mechanism 5 includes a limiting frame 51, and a top pressure push plate 52 is fixed to the inner top wall of the limiting frame 51. When the limiting slide 6, carrying the grinding mechanism, rises to the top, the inner conical cylinder 82 at the front end of the switching drive mechanism 8 will contact and continuously press against the top pressure push plate 52. The force generated by this contact is the key signal to trigger the tool group switching. An inwardly inclined retraction ramp 53 is provided at the bottom of the limiting frame 51. When the limiting slide 6, carrying the grinding mechanism, descends to the bottom... When the end is reached, the inner tapered cylinder 82 will contact the inclined surface of the retraction ramp 53. The inclined surface will convert the contact force into an axial force, triggering the tool set to reset. The installation distance of the top pressure push plate 52 must be equal to the overall length of the tool holder 72. The horizontal length of the retraction ramp 53 must be greater than the overall length of the tool holder 72. The length of the top pressure push plate 52 is equal to the length of the tool set, ensuring that the switching action is completed at the precise end of the stroke. The length of the retraction ramp 53 is greater than the length of the tool set, providing a certain buffer and fault tolerance space to ensure that the reset action can be completed smoothly.

[0044] Please see the appendix Figure 4 - Appendix Figure 5A limiting slide 6 slides inside the central positioning frame 4, and the central cylinder setting mechanism 7 and the switching drive mechanism 8 are mounted in the opposing frame 1 through the limiting slide 6. The side wall of the central positioning frame 4 is provided with an electric control guide rail element, and the output end is connected to the limiting slide 6 to control the limiting slide 6, the central cylinder setting mechanism 7 and the switching drive mechanism 8 to move back and forth in the longitudinal direction. The electric control guide rail element includes a lead screw or linear module driven by a servo motor. A limiting slide 6 is installed on this guide rail and can slide up and down. The limiting slide 6 carries the core grinding components, the central cylinder setting mechanism 7 and the switching drive mechanism 8. The positioning guide mechanism 5 is fixed on the front side of the central positioning frame 4 facing the working surface. When the electric control guide rail element is activated, it drives the limiting slide 6 to make a precise up and down reciprocating linear motion along the central positioning frame 4. The limiting slide 6 moves up and down together with the central cylinder setting mechanism 7 and the switching drive mechanism 8 on it. This is the power source for the grinding head to move up and down relative to the plate.

[0045] Please see the appendix Figure 6 - Appendix Figure 7 The central cylinder placement mechanism 7 includes a multi-position material cylinder 71 and a tool holder 72. The tool holder 72 is distributed on the multi-position material cylinder 71, and the grinding blades 73 on the outer side of the tool holder 72 form staggered and circumferentially distributed grinding teeth. The eccentric top bar 74 on the inner side of the multi-position material cylinder 71 and the side-mounted groove 75 at the side end form a pushing and retraction locking structure. The multi-position material cylinder 71 is rotatably mounted on the limiting slide 6, and the multi-position material cylinder 71 is provided with circumferentially distributed fitting grooves. Furthermore, the number of fitting slots is even, so that the tool holder 72 can be embedded in the fitting slot of the multi-position material cylinder 71 in a circumferentially distributed manner. Each group of adjacent tool holders 72 is arranged in a staggered manner to form two groups of tool holders 72 that are staggered and also circumferentially distributed. The two groups of tool holders are staggeredly embedded in the fitting slot of the multi-position material cylinder 71. The second group of tool holders is installed in the opposite direction to the first group of tool holders, and at the same time, they are adjacent and staggered. Each group of tool holders can be radially extended or retracted in the slot.

[0046] Please see the appendix Figure 10 - Appendix Figure 13 The eccentric top bar 74 is fixed inside the tool holder 72 and adjacent to the middle of the tool holder 72. It is a protruding bar fixed on the side of the inner side of the tool holder 72 near the center of the cylinder. Its function is to push the tool holder 72 radially out when it is pushed. The side groove 75 is provided at the end of the tool holder 72. It is a groove in the axial direction at the end of the tool holder 72. Its function is to allow the locking step block 84 to be inserted, thereby pulling the tool holder 72 radially back to lock and retract. When the adjacent tool holders 72 are staggered, the side groove 75 and the eccentric top bar 74 will be installed in opposite positions at the same time. Since the two sets of tool holders 72 are staggered, their eccentric top bars 74 and side grooves 75 are staggered in axial position, which provides space for the switching mechanism to control them separately.

[0047] Please see the appendix Figure 7 - Appendix Figure 9 The grinding disc blade 73 can be detachably mounted on the tool holder 72. The outer surface of the grinding disc blade 73 is respectively arranged with strip-shaped grinding teeth and V-shaped grinding teeth. The grinding teeth of the grinding disc blade 73 mounted on the two sets of tool holders 72 are different in shape. One set is strip-shaped grinding teeth for rough grinding, and the other set is V-shaped grinding teeth for fine grinding.

[0048] Please see the appendix Figure 11 - Appendix Figure 14 The switching drive mechanism 8 includes a linkage push shaft 81, an inner tapered cylinder 82, and staggered clamping elements. The linkage push shaft 81 is embedded in the multi-position material cylinder 71. The linkage push shaft 81 is an axial shaft that passes through the multi-position material cylinder 71. It is engaged with the multi-position material cylinder 71 through a retaining strip, so it can rotate at high speed with the cylinder. At the same time, it can slide or pull axially inside the cylinder and rotate with the multi-position material cylinder 71. The inner tapered cylinder 82 can contact the top pressure push plate 52 and the return slope plate 53. The inner tapered cylinder 82 is the antenna that receives the trigger signal of the positioning guide mechanism 5. When it contacts the top pressure push plate 52 or the return slope plate 53, the contact force will be converted into a force that pushes the linkage push shaft 81 to move axially. The central push cylinder 83 in the middle of the linkage push shaft 81 can contact the top pressure push plate 52 and the return slope plate 53.

[0049] Please see the appendix Figure 13 - Appendix Figure 14 The staggered clamping elements are in contact with the side-mounted groove 75. The linkage push shaft 81 is embedded and fixed in the multi-position material cylinder 71 and is fitted in the multi-position material cylinder 71 by a retaining strip. The inner tapered cylinder 82 is fixed at one end of the linkage push shaft 81 near the positioning guide mechanism 5, and the large diameter part of the inner tapered cylinder 82 is located outside the small diameter part. The staggered clamping elements are arranged opposite to each other on both sides of the linkage push shaft 81. The staggered clamping elements are composed of locking step blocks 84 that are circumferentially distributed and fixed on the surface of the linkage push shaft 81. The locking step blocks 84 on both sides are staggered and correspond to the tool holder 72. They can be embedded in the side-mounted groove 75. The staggered clamping elements are multiple locking step blocks 84 with trapezoidal inclined surfaces, which are circumferentially fixed on the surface of the linkage push shaft 81. Their positions correspond exactly to the side-mounted groove 75 of the tool holder 72. One set of locking step blocks 84 is responsible for one set of tool holders.

[0050] Please see the appendix Figure 1 - Appendix Figure 6 The top of the opposing frame 1 is provided with relatively distributed hydraulic drive elements 9, and the telescopic ends of the hydraulic drive elements 9 are distributed to pull a set of relatively track platforms 2 to slide within the opposing frame 1. The limiting slide 6 is provided with a motor drive element 10 on the side away from the positioning guide mechanism 5, and the motor drive element 10 can control the rotation of the central cylinder positioning mechanism 7 through the output end.

[0051] Based on the above, this invention provides a working principle for a surface treatment device used in the production of furniture panels, comprising the following:

[0052] Preparation stage: Plate loading and positioning

[0053] The worker places the plates to be polished into the two vertically placed plate frames 3 on the left and right. These vertically placed plate frames 3 are like trays with slots, which can hold the plates in place. The worker then pushes the vertically placed plate frames 3 containing the plates into the machine along the opposite track tables 2 on both sides of the machine. The track tables have guide wheels, so the pushing is very smooth. The hydraulic drive element 9 on the top of the machine starts to work. It can control the horizontal movement of the track tables on the left and right sides respectively. This allows for precise adjustment of the distance between the two plates and the central polishing mechanism of the machine, ensuring that the pressure is uniform and appropriate during polishing, and that the polishing surfaces of the two plates face the center of the machine.

[0054] Ascending stroke: coarse grinding stage

[0055] An electrically controlled guide rail is installed on the central positioning frame 4 at the center of the equipment. When the guide rail starts, the drive limit slide 6 moves the entire grinding core component, including the central cylinder placement mechanism 7 and the switching drive mechanism 8, upward. At the same time, the motor drive element 10 starts, driving the grinding core component to rotate at high speed. At this time, the first set of cutters is installed on the cutter holder 72, and the grinding disc blades 73 with strip-shaped grinding teeth are in the unfolded state, ready for rough grinding. The second set of cutters, with the grinding disc blades 73 with V-shaped grinding teeth, is in the retracted state because the linkage push shaft 81 in the switching drive mechanism 8 is in the retracted state. The inner tapered cylinder 82 is positioned so that it presses against the eccentric top bar 74 of the first set of cutters and pushes it out. At the same time, the locking step block 84 on the linkage push shaft is inserted into the side groove 75 of the second set of cutters and locks it in the retracted position. The first set of strip-shaped grinding cutters, which is rotating at high speed and unfolding, contacts and grinds the surfaces of the two plates on the left and right as it moves upward. The strip-shaped grinding teeth are relatively coarse and can quickly grind away the burrs, protrusions and uneven areas on the surface of the plate. This action continues until the limit slide 6 raises the grinding mechanism to the top.

[0056] Top trigger: Automatic tool group switching

[0057] When the grinding mechanism reaches its highest point, the inner conical cylinder 82 at the front end of the switching drive mechanism 8 contacts the top pressure push plate 52 fixed to the top of the positioning guide mechanism 5. The top pressure push plate 52 continuously presses the conical inclined surface of the inner conical cylinder 82. This pressing force generates an outward pulling force away from the positioning guide mechanism, pulling the linkage push shaft 81 to begin moving axially outward. The outward movement of the linkage push shaft 81 causes the upper locking step block 84 to approach the side groove 75 of the first set of cutters. The trapezoidal inclined surface of the locking step block 84 engages with the side groove 75, generating a strong inward pressing force, like a wedge, forcibly pulling the first set of cutters back into the cylinder. At the same time, the outward movement of the linkage push shaft 81 also causes the inner conical cylinder 82 to move axially away from the positioning guide mechanism 5. The inner conical cylinder 82 disengages from the eccentric top bar 74 of the first set of cutters and no longer holds it. The linkage push shaft 81 continues to move outward. During the movement, the conical surface of the inner conical cylinder 82 contacts the eccentric top bar 74 of the second set of cutters. The conical surface of the inner conical cylinder 82 pushes the eccentric top bar 74. This thrust is converted into an outward radial force, which forcefully pushes out the second set of cutters and unfolds it. At the same time, the linkage push shaft 81 moves outward, causing the locking step block 84, which originally locked the second set of cutters, to disengage from the side groove 75 of the second set and release its retraction lock. At this point, the first set of coarse grinding cutters is fully retracted, and the second set of fine grinding cutters is fully unfolded, ready for fine grinding. All of this is completed automatically the moment the equipment reaches its highest point, without any pause.

[0058] Descent Stroke: Grinding Stage

[0059] The electrically controlled guide rail element of the center positioning frame 4 immediately reverses its operation, driving the limiting slide 6 to move the grinding core component downwards. The motor drive element 10 continues to keep the grinding component rotating at high speed. Fine grinding process: At this time, the second set of V-shaped grinding tooth cutter sets unfolds. During its downward movement, it simultaneously contacts and grinds the surfaces of the left and right plates. The V-shaped grinding teeth are very fine, which can eliminate the scratches left by coarse grinding and perform fine polishing, making the surface of the plate smoother and shinier. It can even handle some corner details. This action continues until the limiting slide 6 lowers the grinding mechanism to the bottom.

[0060] Bottom Trigger: Automatic Reset Tool Group

[0061] When the grinding mechanism reaches its lowest point, the inner tapered cylinder 82 contacts the retraction ramp 53 at the bottom of the positioning guide mechanism 5. This ramp has an inwardly inclined surface. The ramp 53 continuously presses against the inner tapered cylinder 82, generating an inward thrust towards the positioning guide mechanism. This pushes the linkage push shaft 81 to begin retracting axially inward. The inward movement of the linkage push shaft 81 causes the upper locking step block 84 to approach the side groove 75 of the second set of cutters. The trapezoidal ramp of the locking step block 84 engages with the side groove 75, generating a strong inward pressing force that forcibly pulls the second set of cutters back into the cylinder. Simultaneously, the inward movement of the linkage push shaft 81 also causes the inner tapered cylinder 82 to disengage from the second set of cutters. The eccentric top bar 74 no longer holds the blade in place, and the linkage push shaft 81 continues to move inward. During the movement, the conical surface of the inner extension cone 82 contacts the eccentric top bar 74 of the first set of blades. The conical surface of the inner extension cone 82 pushes the eccentric top bar 74, and this thrust is converted into an outward radial force, forcefully pushing out the first set of blades and causing it to unfold again. At the same time, the linkage push shaft 81 moves inward, causing the locking step block 84, which originally locked the first set of blades, to disengage from the side groove 75 of the first set, releasing its retraction lock and preparing for the next retraction. At this point, the second set of fine grinding blades is fully retracted, and the first set of coarse grinding blades is fully unfolded. The equipment automatically returns to its initial state, ready for the next round of grinding. The already ground plate is removed, and a new plate is loaded to begin grinding.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for the production of furniture panels, comprising a counter-mounted frame (1), wherein the counter-mounted frame (1) is an upper and lower sliding table structure, and a control console is provided on one side; at the same time, guide rails with relatively distributed and independently displaced structures are provided on both sides inside the counter-mounted frame (1); and a center positioning frame (4) is fixed at the center of the side wall of the counter-mounted frame (1), characterized in that: The opposing frame (1) has a vertical plate frame (3) that slides relative to each other through the guide rail structure on both sides. The plate can be relatively embedded into the vertical plate frame (3) and slide along the front working surface of the opposing frame (1) into the opposing frame (1). The center positioning frame (4) is fixed with a positioning guide mechanism (5) on the front side. The positioning guide mechanism (5) includes a limiting frame (51), and a top pressing plate (52) is fixed on the inner top wall of the limiting frame (51). An inwardly inclined retraction plate (53) is provided at the bottom of the limiting frame (51). The center positioning frame (4) slides a limiting slide (6), and the center cylinder placement mechanism (7) and the switching drive mechanism (8) are mounted in the opposing frame (1) through the limiting slide (6); The central cylinder placement mechanism (7) includes a multi-position material cylinder (71) and a tool holder (72). The tool holder (72) is distributed on the multi-position material cylinder (71), and the grinding blades (73) on the outside of the tool holder (72) form interlaced and circumferentially distributed grinding teeth. The eccentric top bar (74) on the inside of the multi-position material cylinder (71) and the side-mounted groove (75) at the side end form a pushing and retraction locking structure. The switching drive mechanism (8) includes a linkage push shaft (81), an inner conical cylinder (82), and staggered clamping elements. The linkage push shaft (81) is embedded in the multi-position material cylinder (71) and rotates with the multi-position material cylinder (71). The inner conical cylinder (82) can contact the top pressure push plate (52) and the return inclined plate (53). The central push cylinder (83) in the middle of the linkage push shaft (81) can contact the top pressure push plate (52) and the return inclined plate (53). The staggered clamping elements contact the side-mounted groove (75).

2. A surface treatment apparatus for house board production according to claim 1, characterized in that, The guide rail structure includes relatively distributed relative track platforms (2), and the two relative track platforms (2) slide laterally along the bottom wall and top wall of the opposing frame (1) respectively. Meanwhile, guide wheels and support plates are provided inside the relative track platforms (2).

3. A surface treatment apparatus for house board production according to claim 2, characterized in that, The vertical plate frame (3) is provided with guide wheels and a top plate on the outside, and can slide along the inside of the relative track platform (2). At the same time, a pusher groove is opened on the outside of the sliding direction of the vertical plate frame (3).

4. The surface treatment equipment for the production of furniture panels according to claim 1, characterized in that, The plates installed on the vertical plate frame (3) are distributed on both sides of the central tube placement mechanism (7), and the surfaces to be processed are facing the central tube placement mechanism (7) at the same time.

5. A surface treatment device for the production of furniture panels according to claim 1, characterized in that, The side wall of the central positioning frame (4) is provided with an electrically controlled guide rail element, and the output end is connected to the limiting slide (6) to control the limiting slide (6), the central cylinder positioning mechanism (7) and the switching drive mechanism (8) to move back and forth in the vertical direction.

6. A surface treatment device for the production of furniture panels according to claim 1, characterized in that, The multi-position material cylinder (71) is rotatably mounted on the limiting slide (6). The multi-position material cylinder (71) is provided with circumferentially distributed fitting slots, and the number of fitting slots is even, so that the tool holder (72) can be embedded in the fitting slots of the multi-position material cylinder (71) in a circumferentially distributed manner. Each set of adjacent tool holders (72) is arranged in a staggered manner to form two sets of tool holders (72) that are staggered and also circumferentially distributed. The grinding disc blade (73) can be detachably added to the tool holder (72). The eccentric top bar (74) is fixed inside the tool holder (72) and located in the middle of the tool holder (72). The side fitting slot (75) is provided at the end of the tool holder (72). When adjacent tool holders (72) are staggered, the installation positions of the side fitting slot (75) and the eccentric top bar (74) will be reversed at the same time.

7. A surface treatment device for the production of furniture panels according to claim 1, characterized in that, The linkage push shaft (81) is embedded and fixed in the multi-position material cylinder (71) and is fitted in the multi-position material cylinder (71) by a retaining strip. The inner tapered cylinder (82) is fixed at one end of the linkage push shaft (81) near the positioning guide mechanism (5), and the large diameter part of the inner tapered cylinder (82) is located outside the small diameter part. The staggered clamping elements are arranged opposite to each other on both sides of the linkage push shaft (81), and the staggered clamping elements are composed of locking ladder blocks (84) that are circumferentially distributed and fixed on the surface of the linkage push shaft (81). The locking ladder blocks (84) on both sides are staggered and correspond to the tool holder (72), and can be embedded in the side groove (75).

8. A surface treatment device for the production of furniture panels according to claim 1, characterized in that, The outer surfaces of the two adjacent sets of grinding blades (73) are respectively arranged with strip-shaped grinding teeth and V-shaped grinding teeth.

9. A surface treatment device for the production of furniture panels according to claim 1, characterized in that, The installation distance of the top pressure push plate (52) must be equal to the overall length of the tool holder (72), and the horizontal length of the retraction inclined plate (53) must be greater than the overall length of the tool holder (72).

10. A surface treatment device for the production of furniture panels according to claim 2, characterized in that, The top of the opposing frame (1) is provided with relatively distributed hydraulic drive elements (9), and the telescopic ends of the hydraulic drive elements (9) are distributed to pull a set of relative track platforms (2) to slide within the opposing frame (1). The limiting slide (6) is provided with a motor drive element (10) on the side away from the positioning guide mechanism (5), and the motor drive element (10) can control the rotation of the central cylinder mechanism (7) through the output end.

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