Sofa board surface processing equipment

Abstract

The invention discloses sofa board surface processing equipment, and relates to the technical field of board surface processing. The device comprises a machining table, linear sliding rail modules are installed on the front face and the back face of the machining table, a grinding assembly is fixedly installed between the two linear sliding rail modules, the grinding assembly is located above the machining table, and the grinding assembly comprises a grinding cover fixedly installed between the two linear sliding rail modules; a negative pressure hole is formed in the inner wall of the polishing cover, and the negative pressure hole and the adsorption hole are connected with external negative pressure equipment through a negative pressure connecting pipe. Through the arrangement of the abrasive paper mounting roller, abrasive paper can be quickly unloaded, the abrasive paper is tightly adsorbed on the abrasive paper mounting roller through negative pressure along with rotation of the abrasive paper mounting roller in the replacement cover, quick replacement of long abrasive paper is completed, abrasive paper with different granularities can be replaced according to needs, the equipment adaptability is high, manual operation replacement is not needed, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to the technical field of plate surface processing, and in particular to a sofa plate surface processing device. Background Art

[0002] With the improvement of the quality of home life, the demand for wooden furniture in modern families is increasing year by year, especially the sofa, an important furniture item. The wooden frame of the sofa is its core structural part, which is usually processed with high-quality wood (such as solid wood, plywood, etc.). The smoothness of the wood surface directly affects the appearance and comfort of the sofa, and is also the key basis for painting and subsequent processing. In order to ensure that the wood surface achieves the ideal smooth effect, the polishing process is usually a necessary step in the production of wooden sofas.

[0003] Traditional polishing methods mainly include manual polishing and mechanized polishing: (1) Manual polishing usually relies on tools such as sandpaper and polishing blocks. For large-area wooden boards, manual polishing is not only time-consuming, but also difficult to maintain consistent polishing quality. (2) Mechanical polishing is mainly carried out using tools such as electric sanders, belt sanders, and vibration sanders. Mechanical polishing equipment has poor adaptability. For wooden boards of different thicknesses, hardnesses, and polishing grains, traditional mechanical equipment often has difficulty in automatically adjusting parameters, resulting in unsatisfactory polishing effects. In particular, for sofa wooden boards, in order to ensure smoothness, three times of coarse, medium, and fine polishing are usually required. Moreover, the three times of polishing grains of different wooden boards are also different, and it is impossible to prepare corresponding polishing rollers. The adaptability is poor. In a Chinese patent (publication number: CN218488095U), a crystal grinding device with vacuum adsorption sandpaper is disclosed. The workbench has an opening on the table top; the support column of the rotating platform is provided with a through hole in the axial direction; the support column can be rotatably installed on the workbench bracket, and the support column passes through the table top opening; the support column is connected to a drive motor, and the drive motor can drive the rotating platform to rotate; the grinding disc is installed on the support column of the rotating platform, and a number of adsorption holes that penetrate the disc body are provided along the surface of the grinding disc; the air outlet of the vacuum generator is connected to the through hole through a pipeline and a pipe joint, and its air inlet is connected to the high-pressure air source through an air switch; the pipe joint is provided at the opening of the through hole, and one end of the pipeline is connected to the pipe joint, and the other end is connected to the vacuum generator. This patent can quickly realize the replacement of sandpaper, but it is limited to the rapid replacement of disc-shaped sandpaper, and is not suitable for long round roller-shaped sandpaper, and is not suitable for large-area wood board grinding equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a sofa board surface processing device.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A sofa board surface processing equipment comprises a processing table, the front and back sides of the processing table are both installed with linear slide rail modules, a grinding assembly is fixedly installed between the two groups of linear slide rail modules, the grinding assembly is located above the processing table, the grinding assembly comprises a grinding cover fixedly installed between the two groups of linear slide rail modules, both sides of the inner wall of the grinding cover are provided with adjustment slide grooves, the inner sliding connection of the adjustment slide grooves is provided with an adjustment slide, the adjustment slide can slide up and down along the adjustment slide grooves, a rotating shaft is rotatably installed between the two groups of adjustment slides, a sandpaper installation roller is fixedly installed on the outer side of the rotating shaft, a plurality of adsorption holes are provided on the outer surface of the sandpaper installation roller, the adsorption holes can adsorb sandpaper through negative pressure, a dust suction hole is provided on the inner wall of the grinding cover, the dust suction hole is connected to an external dust removal device through a dust suction pipe, a negative pressure hole is provided on the inner wall of the grinding cover, and the negative pressure hole and the adsorption hole are respectively connected to an external negative pressure device through a negative pressure connecting pipe;

[0007] Guide rails are fixedly installed on both sides of the inner wall of the polishing cover, and a lifting slider is slidably connected inside the guide rails. An axis groove 1 is opened inside the lifting slider, and the opening of the axis groove 1 faces downward. When the lifting slider rises to the highest position, the axis groove 1 corresponds to the negative pressure hole. A replacement cover is rotatably installed between the two groups of lifting sliders. The replacement cover consists of a semicircular shaping cover and two groups of arc-shaped elastic hoop covers. The edges of the elastic hoop covers are provided with curved corners. Side plates are provided at both ends of the replacement cover. An axis groove 2 is opened inside the side plates. The rotating shaft can be plugged into the axis groove 2 and the axis groove 1.

[0008] A sandpaper bucket is arranged inside the polishing cover, the sandpaper bucket can store sandpaper, a paper adsorption and pressing opening is arranged in the middle of the sandpaper bucket, and a paper upper component is fixedly installed above the sandpaper bucket, and the paper upper component can spread the sandpaper flat in the sandpaper bucket.

[0009] Furthermore, a transmission cavity is opened on the back side of the grinding cover, and the adjusting slide on the back side extends into the transmission cavity. A driving wheel and a driven wheel are rotatably installed on the back side of the adjusting slide, and the driving wheel is meshed with the driven wheel. The driven wheel is fixedly connected to the rotating shaft, and a grinding motor is fixedly installed inside the adjusting slide, and the driving wheel is fixedly installed on the output end of the grinding motor. An electric telescopic rod 1 is fixedly installed inside the transmission cavity, and the adjusting slide is fixedly installed on the telescopic end of the electric telescopic rod 1.

[0010] Furthermore, the polishing cover is fixedly installed with an electric telescopic rod 2, the lifting slider is fixedly installed on the telescopic end of the electric telescopic rod 2, the lifting slider is rotatably installed with a transmission wheel and an acceleration wheel on the side close to the replacement cover, the transmission wheel is meshed with the acceleration wheel, the transmission wheel is fixedly installed with a driving wheel on the side close to the replacement cover, and the acceleration wheel is fixedly installed with a flip wheel on the side close to the replacement cover;

[0011] A mounting hoop is fixedly installed on the side of the lifting slider close to the replacement cover, and the opening of the mounting hoop corresponds to the first shaft groove. A flip gear ring is fixedly installed on the outer side of the side plate, and the flip gear ring rotates in the mounting hoop, and the opening of the flip gear ring corresponds to the second shaft groove, and the flip gear ring is meshed with the driving wheel.

[0012] A gear rod is fixedly installed inside the polishing cover, a spur tooth portion of the gear rod is arranged in the middle, and the turning wheel can mesh with the spur tooth portion.

[0013] Furthermore, the radius of the transmission wheel is smaller than that of the acceleration wheel and the driving wheel, and the radius of the flip wheel is smaller than that of the acceleration wheel.

[0014] Furthermore, the paper loading assembly includes a sandpaper box fixedly installed on the top of the polishing cover, an inclined plate is provided inside the sandpaper box, an active roller and a driven roller are rotatably installed inside the sandpaper box, a conveying spacing is provided between the active roller and the driven roller, and the conveying spacing is the same as the thickness of the sandpaper, the active roller is driven by a paper loading motor, the active roller is located at the bottom end of the inclined plate, a guide spacing is provided between the inner wall of the sandpaper box and the active roller, and the guide spacing is the same as the thickness of the sandpaper.

[0015] Furthermore, a sealing rubber block is fixedly installed on the inner wall of the polishing cover, and the sealing rubber block can seal the first shaft groove and the second shaft groove. An air hole is opened inside the sealing rubber block, and the air hole is connected to the negative pressure hole.

[0016] Furthermore, an upper cover door is hinged on the top of the polishing cover, and a handle is arranged on the top of the upper cover door.

[0017] Furthermore, a cavity is provided inside the rotating shaft, the cavity is connected with all the adsorption holes, and the cavity is connected with the negative pressure connecting pipe through a rotating sealing joint.

[0018] Furthermore, a rubber retaining ring is provided at the bottom of the polishing cover.

[0019] Furthermore, both ends of the linear slide rail module extend beyond the processing table.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention arranges a sandpaper installation roller and utilizes negative pressure to tightly wrap the circumference of the sandpaper onto the sandpaper installation roller, so that the sandpaper can be quickly unloaded. Then, the upper paper assembly spreads the sandpaper flat in the sandpaper bucket, and the sandpaper is absorbed into the replacement cover by the negative pressure. The sandpaper is then turned over and sleeved on the sandpaper installation roller through the replacement cover. As the sandpaper installation roller rotates in the replacement cover, the sandpaper can be evenly wrapped on the sandpaper installation roller, and the sandpaper is tightly absorbed on the sandpaper installation roller by utilizing negative pressure, so that long sandpaper can be quickly replaced. Sandpapers of different particle sizes can be replaced according to needs. The equipment has strong adaptability, does not require manual operation for replacement, and has a high degree of automation.

[0022] 2. The present invention sets a polishing cover across the processing table, and the linear slide rail module drives the polishing cover to move, so that a large area of ​​wooden boards can be polished quickly with high polishing efficiency. While polishing, the dust suction pipe generates suction to absorb the grinding debris, which can prevent the grinding dust from polluting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 The internal structure of the grinding assembly of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 3 The internal structure of the grinding assembly of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 4 is an exploded view of the grinding assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the grinding cover of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the sandpaper installation roller of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the lifting slider and the replacement cover of the present invention;

[0030] Figure 8 It is a schematic diagram of the cross-sectional structure of the paper loading assembly of the present invention;

[0031] Fig. 9 This is a schematic diagram of the adsorption press paper of the present invention;

[0032] Fig.10 It is a schematic diagram of the sandpaper of the present invention being away from the sandpaper bucket;

[0033] Fig.11 It is a schematic diagram of replacing the cover and flipping the sandpaper of the present invention.

[0034] Figure numerals: 1, processing table; 2, linear slide rail module; 3, grinding cover; 31, adjusting slide groove; 32, dust suction hole; 33, guide rail; 34, gear rod; 35, sealing rubber block; 36, air hole; 37, sandpaper bucket; 38, upper cover door; 39, transmission chamber; 310, electric telescopic rod 2; 4, adjusting slide; 41, driving wheel; 42, driven wheel; 43, electric telescopic rod 1; 5, sandpaper installation roller; 51, adsorption hole; 6. Lifting slider; 61. Shaft groove one; 62. Mounting hoop; 63. Driving wheel; 64. Transmission wheel; 65. Acceleration wheel; 66. Flipping wheel; 7. Replacement cover; 71. Forming cover; 72. Elastic hoop cover; 73. Bending corner; 74. Side plate; 75. Shaft groove two; 76. Flipping gear ring; 8. Paper loading assembly; 81. Sandpaper box; 82. Inclined plate; 83. Active roller; 84. Driven roller; 9. Dust suction pipe; 10. Negative pressure connecting pipe. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] Embodiment 1, as Figure 1-Figure 11 As shown, a sofa board surface processing equipment comprises a processing table 1, a linear slide rail module 2 is installed on the front and back of the processing table 1, a grinding assembly is fixedly installed between the two groups of linear slide rail modules 2, the grinding assembly is located above the processing table 1, and the grinding assembly comprises a grinding cover 3 fixedly installed between the two groups of linear slide rail modules 2, both sides of the inner wall of the grinding cover 3 are provided with adjustment slots 31, the inner sliding connection of the adjustment slots 31 is provided with an adjustment slide 4, the adjustment slide 4 can slide up and down along the adjustment slots 31, a rotating shaft is rotatably installed between the two groups of adjustment slides 4, a sandpaper installation roller 5 is fixedly installed on the outer side of the rotating shaft, a plurality of adsorption holes 51 are provided on the outer surface of the sandpaper installation roller 5, and the adsorption holes 51 can adsorb sandpaper through negative pressure, a dust suction hole 32 is provided on the inner wall of the grinding cover 3, and the dust suction hole 32 is connected to an external dust removal device through a dust suction pipe 9, and a negative pressure hole is provided on the inner wall of the grinding cover 3, and the negative pressure hole and the adsorption hole 51 are respectively connected to an external negative pressure device through a negative pressure connecting pipe 10;

[0037] Guide rails 33 are fixedly installed on both sides of the inner wall of the polishing cover 3, and a lifting slider 6 is slidably connected inside the guide rails 33. An axis groove 61 is opened inside the lifting slider 6, and the axis groove 61 opens downward. When the lifting slider 6 rises to the highest position, the axis groove 61 corresponds to the negative pressure hole. A replacement cover 7 is rotatably installed between the two groups of lifting sliders 6. The replacement cover 7 consists of a semicircular shaping cover 71 and two groups of arc-shaped elastic hoop covers 72. The edges of the elastic hoop covers 72 are provided with curved corners 73. Side plates 74 are provided at both ends of the replacement cover 7. An axis groove 2 75 is opened inside the side plate 74, and the rotating shaft can be plugged into the axis groove 2 75 and the axis groove 1 61;

[0038] A sandpaper bucket 37 is provided inside the polishing cover 3 for storing sandpaper. A paper adsorption and pressing opening is provided in the middle of the sandpaper bucket 37 . A paper upper assembly 8 is fixedly installed above the sandpaper bucket 37 . The paper upper assembly 8 can spread the sandpaper flat in the sandpaper bucket 37 .

[0039] Loading: Place the wooden board on the processing table 1, fix the wooden board with a clamping tool, and then stack the corresponding coarse, medium and fine sandpapers from bottom to top in the upper paper assembly 8 according to the material of the wooden board. At this time, the upper paper assembly 8 spreads the coarse sandpaper in the sandpaper bucket 37;

[0040] Adsorption of pressing paper: At this time, the lifting slider 6 is at the highest end, and the elastic hoop cover 72 presses on the bottom of the sandpaper bucket 37, and slightly expands outward under the guidance of the bend 73, not exceeding the deformation of the elastic hoop cover 72. At this time, the negative pressure hole is sucked through the negative pressure connecting pipe 10, and the negative pressure hole generates negative pressure in the space between the sandpaper and the replacement cover 7, and the sandpaper is sucked into the replacement cover 7. When the sandpaper exceeds the negative pressure hole, the sandpaper stops pressing in. Fig. 9 In the state shown, the opening is larger;

[0041] Sandpaper wrapping: At this time, the lifting slider 6 drives the replacement cover 7 to descend, and the elastic hoop cover 72 moves away from the sandpaper bucket 37. The elastic hoop cover 72 recovers to generate an inward clamping force to clamp the sandpaper in the replacement cover 7. At this time, the sandpaper opening is vertical. When the sandpaper moves away from the sandpaper bucket 37, the replacement cover 7 flips over, and the replacement cover 7 drives the sandpaper to rotate until the opening faces downward. Then, the replacement cover 7 drives the sandpaper to be sleeved on the sandpaper installation roller 5. At this time, the adsorption holes 51 on the sandpaper installation roller 5 generate negative pressure. At this time, the upper half of the sandpaper installation roller 5 adsorbs the sandpaper tightly, and then the rotating shaft drives the sandpaper installation roller 5 to rotate. The sandpaper installation roller 5 drives the sandpaper to rotate, so that the sandpaper opening rotates to the shaping cover In 71, the opening part is tightly pressed on the sandpaper installation roller 5, and then adsorbed by the adsorption hole 51, so that the sandpaper is evenly and tightly vacuum-adsorbed and wrapped on the sandpaper installation roller 5, and the sandpaper is automatically installed. Since the sandpaper installation roller 5 in the present invention is cylindrical and has a long length, if it is installed manually, it will not only be inefficient, but also easily cause the sandpaper to bend, and the installation is difficult, and direct adsorption cannot be achieved. Therefore, the structure of the present invention can automatically and high-quality complete the automatic replacement of sandpaper, and the replacement efficiency is high. After the replacement is completed, the replacement cover 7 is reset to block the sandpaper bucket 37 to ensure that debris will not enter the sandpaper bucket 37 and will not affect the subsequent sandpaper replacement;

[0042] Grinding: The rotating shaft drives the sandpaper installation roller 5 to rotate at a high speed, and the linear slide module 2 drives the grinding component to move along the processing table 1. Since the sandpaper installation roller 5 spans the processing table 1, it can quickly complete the grinding of a large area of ​​the wooden board surface. While grinding, the dust suction pipe 9 sucks the grinding debris into the dust suction device. After rough grinding, the adsorption hole 51 loses negative pressure, and the coarse sandpaper automatically falls off. Then, the paper loading component 8 transports the medium sandpaper to the sandpaper bucket 37, and the medium sandpaper is automatically replaced. After medium grinding, the fine sandpaper is automatically replaced, and the sofa wood board can be automatically and efficiently completed with high quality.

[0043] Furthermore, a rubber retaining ring is arranged at the bottom of the polishing cover 3. The rubber retaining ring can seal the polishing cover 3 and the wooden board, thereby reducing dust leakage.

[0044] Embodiment 2, on the basis of the above embodiment, further includes: a transmission cavity 39 is opened on the back of the grinding cover 3, the back adjustment slide 4 extends into the transmission cavity 39, a driving wheel 41 and a driven wheel 42 are rotatably installed on the back of the adjustment slide 4, the driving wheel 41 is meshed with the driven wheel 42, the driven wheel 42 is fixedly connected to the rotating shaft, a grinding motor is fixedly installed inside the adjustment slide 4, the driving wheel 41 is fixedly installed on the output end of the grinding motor, an electric telescopic rod 43 is fixedly installed inside the transmission cavity 39, and the adjustment slide 4 is fixedly installed on the telescopic end of the electric telescopic rod 43.

[0045] By controlling the operation of the electric telescopic rod 43, the electric telescopic rod 43 drives the adjusting slide 4 to rise and fall, and the adjusting slide 4 drives the sandpaper installation roller 5 to rise and fall, so as to adjust the grinding depth, control the grinding motor to be energized, the grinding motor drives the active wheel 41 to rotate, the active wheel 41 drives the driven wheel 42 to rotate, the driven wheel 42 drives the rotating shaft to rotate, and the rotating shaft drives the sandpaper installation roller 5 to rotate at high speed for grinding.

[0046] Embodiment 3, on the basis of the above embodiment, further includes: the polishing cover 3 is fixedly installed with the electric telescopic rod 2 310, the lifting slider 6 is fixedly installed on the telescopic end of the electric telescopic rod 2 310, the lifting slider 6 is rotatably installed with a transmission wheel 64 and an acceleration wheel 65 on the side of the lifting slider 6 close to the replacement cover 7, the transmission wheel 64 is meshed with the acceleration wheel 65, the transmission wheel 64 is fixedly installed with a driving wheel 63 on the side of the transmission wheel 64 close to the replacement cover 7, and the acceleration wheel 65 is fixedly installed with a flip wheel 66 on the side of the replacement cover 7;

[0047] A mounting hoop 62 is fixedly installed on one side of the lifting slide block 6 close to the replacement cover 7, and the opening of the mounting hoop 62 corresponds to the shaft groove 1 61. A flip gear ring 76 is fixedly installed on the outer side of the side plate 74. The flip gear ring 76 rotates in the mounting hoop 62, and the opening of the flip gear ring 76 corresponds to the shaft groove 2 75. The flip gear ring 76 is meshed with the driving wheel 63.

[0048] A gear rod 34 is fixedly installed inside the grinding cover 3 , a spur tooth portion of the gear rod 34 is arranged in the middle, and the turning wheel 66 can mesh with the spur tooth portion.

[0049] Sandpaper wrapping: The electric telescopic rod 2 310 drives the lifting slider 6 to descend, the lifting slider 6 drives the replacement cover 7 to descend, the elastic hoop cover 72 moves away from the sandpaper bucket 37, the elastic hoop cover 72 recovers to generate an inward clamping force, and the sandpaper is clamped in the replacement cover 7. At this time, the sandpaper opening is vertical. When the sandpaper moves away from the sandpaper bucket 37, the lifting slider 6 drives the flip wheel 66 to mesh with the spur teeth, and the spur teeth cause the flip wheel 66 to rotate, the flip wheel 66 drives the acceleration wheel 65 to rotate, the acceleration wheel 65 drives the transmission wheel 64 to rotate, the transmission wheel 64 drives the driving wheel 63 to rotate, the driving wheel 63 drives the flip gear ring 76 to rotate, and the flip gear ring 76 drives the replacement cover 7 to flip. At this time The opening of the gear ring 76 is turned downward, which does not affect the subsequent sandpaper installation. The replacement cover 7 drives the sandpaper to rotate until the opening faces downward, and then the flip wheel 66 is disengaged from the straight teeth. Then the replacement cover 7 drives the sandpaper to be sleeved on the sandpaper installation roller 5. At this time, the adsorption holes 51 on the sandpaper installation roller 5 generate negative pressure. At this time, the upper half of the sandpaper installation roller 5 tightly adsorbs the sandpaper, and then the rotating shaft drives the sandpaper installation roller 5 to rotate. The sandpaper installation roller 5 drives the sandpaper to rotate, so that the sandpaper opening rotates to the shaping cover 71, and the opening part is tightly pressed on the sandpaper installation roller 5, and then adsorbed by the adsorption holes 51, so that the sandpaper is evenly and tightly vacuum-adsorbed and wrapped on the sandpaper installation roller 5, completing the automatic installation of sandpaper.

[0050] In this embodiment, there is no need to drive the replacement cover 7. The replacement cover 7 is flipped while the lifting slider 6 is raised and lowered. The structure is simple and the control accuracy is high.

[0051] Furthermore, the radius of the transmission wheel 64 is smaller than the acceleration wheel 65 and the driving wheel 63, and the radius of the flipping wheel 66 is smaller than the radius of the acceleration wheel 65. Through the design of this embodiment, the acceleration wheel 65 can amplify the rotation speed of the flipping wheel 66, the transmission wheel 64 amplifies the rotation speed again relative to the acceleration wheel 65, and the driving wheel 63 amplifies the rotation speed again relative to the transmission wheel 64, so that the replacement cover 7 can be quickly flipped when it descends a short distance, saving flipping space.

[0052] Embodiment 4, on the basis of the above embodiment, further includes: the paper loading assembly 8 includes a sandpaper box 81 fixedly installed on the top of the grinding cover 3, an inclined plate 82 is arranged inside the sandpaper box 81, an active roller 83 and a driven roller 84 are rotatably installed inside the sandpaper box 81, a conveying distance is arranged between the active roller 83 and the driven roller 84, and the conveying distance is the same as the thickness of the sandpaper, the active roller 83 is driven by the paper loading motor, the active roller 83 is located at the bottom end of the inclined plate 82, a guide distance is arranged between the inner wall of the sandpaper box 81 and the active roller 83, and the guide distance is the same as the thickness of the sandpaper.

[0053] According to the material of the wood board, the corresponding coarse, medium and fine sandpapers are stacked in the sandpaper box 81 from bottom to top, and the sandpapers are tilted to the position of the active roller 83. When the paper loading motor drives the active roller 83 to rotate, the sandpaper is transported to the conveying distance along the guide distance, and then obliquely enters the sandpaper bucket 37 under the guidance of the driven roller 84. When the edge of the sandpaper is separated from the driven roller 84, the sandpaper is flattened in the sandpaper bucket 37, and then the medium sandpaper falls on the active roller 83, and the sandpaper can be automatically transported in layers. The upper and lower design of the sandpaper box 81 and the sandpaper bucket 37 can greatly save the volume of the device.

[0054] Embodiment 5, based on the above embodiment, further includes that a sealing rubber block 35 is fixedly installed on the inner wall of the grinding cover 3, the sealing rubber block 35 can seal the shaft groove 1 61 and the shaft groove 2 75, and an air hole 36 is opened inside the sealing rubber block 35, and the air hole 36 is connected to the negative pressure hole.

[0055] When the lifting slider 6 rises to the highest position, the sealing rubber block 35 blocks the shaft groove 1 61 and the shaft groove 2 75. The sealing rubber block 35 allows the air hole 36 to be set at a lower position at this time, which can better suck the sandpaper into the replacement cover 7. The sealing rubber block 35 can be bent and compressed. The lifting slider 6 can compress the sealing rubber block 35 when it is lifted and lowered. When it rises to the highest position, the sealing rubber block 35 recovers and blocks the shaft groove 1 61 and the shaft groove 2 75, ensuring that the sandpaper will stop entering the replacement cover 7 only when it passes through the air hole 36.

[0056] Embodiment 6, based on the above embodiment, further includes: an upper cover door 38 is hinged on the top of the sanding cover 3, and a handle is provided on the top of the upper cover door 38 to facilitate the storage of sandpaper.

[0057] Furthermore, a cavity is provided inside the rotating shaft, the cavity is connected to all the adsorption holes 51, and the cavity is connected to the negative pressure connecting pipe 10 through a rotating sealing joint. Through this design, the negative pressure connecting pipe 10 does not affect the rotation of the rotating shaft.

[0058] Embodiment 7, based on the above embodiment, also includes that both ends of the linear slide module 2 exceed the processing table 1. Through this design, after the rough grinding is completed, the linear slide module 2 drives the grinding assembly to move to the end point of the linear slide module 2. At this time, the sandpaper mounting roller 5 exceeds the processing table 1, and when the adsorption hole 51 stops generating negative pressure, the sandpaper can automatically fall to the ground and will not fall on the processing table 1, and will not affect the subsequent grinding. No manual intervention is required throughout the process.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sofa board surface processing device, comprising a processing table (1), characterized in that: The front and back sides of the processing table (1) are both installed with linear slide rail modules (2), a grinding assembly is fixedly installed between the two sets of linear slide rail modules (2), and the grinding assembly is located above the processing table (1). The grinding assembly includes a grinding cover (3) fixedly installed between the two sets of linear slide rail modules (2), and both sides of the inner wall of the grinding cover (3) are provided with adjustment grooves (31), and the inside of the adjustment groove (31) is slidably connected with an adjustment slide (4), and the adjustment slide (4) can slide up and down along the adjustment groove (31). The two sets of adjustment slides are connected to each other. A rotating shaft is rotatably installed between the frames (4), and a sandpaper installation roller (5) is fixedly installed on the outer side of the rotating shaft. The outer surface of the sandpaper installation roller (5) is provided with a plurality of adsorption holes (51), and the adsorption holes (51) can adsorb sandpaper through negative pressure. The inner wall of the polishing cover (3) is provided with a dust suction hole (32), and the dust suction hole (32) is connected to an external dust removal device through a dust suction pipe (9). The inner wall of the polishing cover (3) is provided with a negative pressure hole, and the negative pressure hole and the adsorption hole (51) are respectively connected to an external negative pressure device through a negative pressure connecting pipe (10); Guide rails (33) are fixedly installed on both sides of the inner wall of the polishing cover (3), and a lifting slider (6) is slidably connected inside the guide rails (33). An axis groove (61) is provided inside the lifting slider (6), and the axis groove (61) opens downward. When the lifting slider (6) rises to the highest position, the axis groove (61) corresponds to the negative pressure hole. A replacement cover (7) is rotatably installed between the two groups of lifting sliders (6). The replacement cover (7) consists of a semicircular shaping cover (71) and two groups of arc-shaped elastic hoop covers (72). The edges of the elastic hoop covers (72) are provided with curved corners (73). Side plates (74) are provided at both ends of the replacement cover (7), and an axis groove (75) is provided inside the side plates (74). The rotating shaft can be inserted into the axis groove (75) and the axis groove (61). A sandpaper bucket (37) is arranged inside the polishing cover (3), and the sandpaper bucket (37) can store sandpaper. A paper adsorption and pressing opening is arranged in the middle of the sandpaper bucket (37). A paper upper assembly (8) is fixedly installed above the sandpaper bucket (37), and the paper upper assembly (8) can lay sandpaper flat in the sandpaper bucket (37).

2. The sofa board surface processing equipment according to claim 1 is characterized in that: The back of the grinding cover (3) is provided with a transmission cavity (39), and the adjusting slide (4) on the back extends into the transmission cavity (39). A driving wheel (41) and a driven wheel (42) are rotatably mounted on the back of the adjusting slide (4), the driving wheel (41) and the driven wheel (42) are meshed with each other, and the driven wheel (42) is fixedly connected to the rotating shaft. A grinding motor is fixedly mounted inside the adjusting slide (4), and the driving wheel (41) is fixedly mounted on the output end of the grinding motor. An electric telescopic rod (43) is fixedly mounted inside the transmission cavity (39), and the adjusting slide (4) is fixedly mounted on the telescopic end of the electric telescopic rod (43).

3. The sofa board surface processing equipment according to claim 2 is characterized in that: The polishing cover (3) is fixedly installed with an electric telescopic rod 2 (310) inside, the lifting slider (6) is fixedly installed on the telescopic end of the electric telescopic rod 2 (310), a transmission wheel (64) and an acceleration wheel (65) are rotatably installed on the side of the lifting slider (6) close to the replacement cover (7), the transmission wheel (64) and the acceleration wheel (65) are meshed, a driving wheel (63) is fixedly installed on the side of the transmission wheel (64) close to the replacement cover (7), and a flip wheel (66) is fixedly installed on the side of the acceleration wheel (65) close to the replacement cover (7); A mounting hoop (62) is fixedly mounted on one side of the lifting slider (6) close to the replacement cover (7), the opening of the mounting hoop (62) corresponds to the first shaft groove (61), and a flip gear ring (76) is fixedly mounted on the outer side of the side plate (74), the flip gear ring (76) rotates in the mounting hoop (62), the opening of the flip gear ring (76) corresponds to the second shaft groove (75), and the flip gear ring (76) is meshed with the driving wheel (63); A gear rod (34) is fixedly installed inside the grinding cover (3), a straight tooth portion of the gear rod (34) is arranged in the middle, and the turning wheel (66) can mesh with the straight tooth portion.

4. The sofa board surface processing equipment according to claim 3 is characterized in that: The radius of the transmission wheel (64) is smaller than that of the acceleration wheel (65) and the driving wheel (63), and the radius of the flip wheel (66) is smaller than that of the acceleration wheel (65).

5. The sofa board surface processing equipment according to claim 3 is characterized in that: The paper loading assembly (8) comprises a sandpaper box (81) fixedly mounted on the top of the sanding cover (3); an inclined plate (82) is arranged inside the sandpaper box (81); a driving roller (83) and a driven roller (84) are rotatably mounted inside the sandpaper box (81); a conveying distance is arranged between the driving roller (83) and the driven roller (84); the conveying distance is the same as the thickness of the sandpaper; the driving roller (83) is driven by a paper loading motor; the driving roller (83) is located at the bottom end of the inclined plate (82); a guide distance is arranged between the inner wall of the sandpaper box (81) and the driving roller (83); the guide distance is the same as the thickness of the sandpaper.

6. The sofa board surface processing equipment according to claim 1, characterized in that: A sealing rubber block (35) is fixedly mounted on the inner wall of the polishing cover (3), and the sealing rubber block (35) can seal the first shaft groove (61) and the second shaft groove (75). An air hole (36) is provided inside the sealing rubber block (35), and the air hole (36) is connected to the negative pressure hole.

7. The sofa board surface processing equipment according to claim 1 is characterized in that: An upper cover door (38) is hingedly connected to the top of the polishing cover (3), and a handle is arranged on the top of the upper cover door (38).

8. The sofa board surface processing equipment according to claim 1 is characterized in that: A cavity is provided inside the rotating shaft, the cavity is connected to all the adsorption holes (51), and the cavity is connected to the negative pressure connecting pipe (10) via a rotating sealing joint.

9. A sofa board surface processing equipment according to any one of claims 1 to 8, characterized in that: A rubber retaining ring is arranged at the bottom of the polishing cover (3).

10. A sofa board surface processing equipment according to any one of claims 1 to 8, characterized in that: Both ends of the linear slide rail module (2) extend beyond the processing table (1).

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