Cylindrical wood outer surface grinding device and use method

Abstract

This invention relates to the field of wood sanding, specifically to a cylindrical wood surface sanding device and its method of use. The device includes a sanding machine support, with a reciprocating lead screw symmetrically rotatably connected to the inner wall of the support. A threaded sleeve is threaded onto the surface of the lead screw, and the side wall of the sleeve is slidably connected to the inner wall of the support. A support plate is fixedly connected to the side of the sleeve away from the support. This cylindrical wood surface sanding device consists of a low-speed triggering mechanism and a transmission adjustment mechanism. When the cylindrical wood inside the support rotates, a reciprocating sanding plate sands the rotating wood surface. When the wedge-shaped plate on the side wall of the sanding plate contacts a nodule on the wood surface, the low-speed triggering mechanism and the transmission adjustment mechanism automatically reduce the movement speed of the sanding plate, allowing it to effectively sand the nodule and improve sanding quality.

Description

Technical Field

[0001] The invention relates to the field of wood polishing, in particular to a cylindrical wood outer surface polishing device and a use method thereof. Background Art

[0002] During the production and processing of columnar wood, it is usually necessary to grind the surface of the wood to remove the raised areas on the surface of the wood for ease of subsequent processing.

[0003] The existing patent (publication number: CN111015392A) discloses a wood grinding device, including a grinding mechanism, a movable lifting mechanism and a bottom plate, one end of which is connected to an incomplete gear through a motor. In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: 1. Due to the presence of raised nodules on the surface of the wood, the wood grinding device always maintains a balanced grinding speed during use, and the nodule position requires long-term grinding to be effectively removed. The balanced grinding speed of the device is difficult to effectively remove the nodule position of the wood, affecting the grinding quality. Summary of the invention

[0004] The purpose of the present invention is to provide a cylindrical wood outer surface grinding device and a method of use, so as to solve the problems raised in the above-mentioned background technology: 1. It is difficult to effectively grind the knot positions of the wood during the use of some existing wood grinding devices. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cylindrical wood outer surface grinding device, comprising a grinder bracket, the inner wall of the inner wall of the grinder bracket is symmetrically rotatably connected to a reciprocating screw, the surface of the reciprocating screw is threadedly connected to a screw sleeve, the side wall of the screw sleeve is slidably connected to the inner wall of the grinder bracket, the side of the screw sleeve away from the grinder bracket is fixedly connected to a support plate, and the opposite sides of the two support plates are fixedly connected to a low-speed trigger mechanism;

[0005] A transmission adjustment mechanism is movably connected between the right end of the reciprocating screw rod and the surface of the grinder bracket, and one end of the low-speed trigger mechanism overlaps the surface of the transmission adjustment mechanism;

[0006] A motor is fixedly connected to the lower part of the left side of the grinder bracket, a transmission gear is fixedly connected to the rotating end of the motor, a main clamp is rotatably connected to the left side of the grinder bracket, a transmission gear ring is fixedly sleeved on the outer ring of the main clamp, and the outer ring of the transmission gear ring is meshed with the outer ring of the transmission gear;

[0007] The right side of the inner wall of the grinder bracket is rotatably connected to a slave clamp, the axial position of the right side of the slave clamp is fixedly connected to a gear rod that cooperates with the transmission adjustment mechanism, and the middle part of the gear rod is rotatably connected to the surface of the grinder bracket.

[0008] Preferably, the low-speed trigger mechanism comprises a telescopic connecting rod, wherein two telescopic connecting rods are provided, and the two telescopic connecting rods are symmetrically fixedly connected to the side wall of the support plate, and a grinding plate is fixedly connected between the two telescopic connecting rods, and a movable groove is provided inside the grinding plate, and a spring buffer rod is fixedly connected to the inner wall of the movable groove, and a wedge plate is fixedly connected to the movable end of the spring buffer rod, and one end of the wedge plate passes through the movable groove and extends to the outside of the grinding plate;

[0009] The inner wall of the movable groove is provided with a limiting groove, a trapezoidal limiting block is slidably connected inside the limiting groove, a compression spring is fixedly connected between the side wall of the trapezoidal limiting block and the inner wall of the limiting groove, a bayonet is fixedly connected to a side of the trapezoidal limiting block close to the wedge plate, and the side wall of the bayonet is overlapped with the side wall of the wedge plate;

[0010] The inner wall of the movable groove is symmetrically provided with slide grooves, and the two slide grooves are respectively arranged on both sides of the limiting groove, a slider is slidably connected to the left side of the inner wall of the slide groove, an inclined groove is provided on the surface of the slider, a slide plate is slidably connected to the right side of the inner wall of the slide groove, and the left end of the slide plate is slidably connected to the inside of the inclined groove, an extrusion spring is movably connected between the middle part of the slide plate and the inner wall of the slide groove, a pad is symmetrically fixedly connected to the left side of the wedge plate, the two pads correspond to the two slides one by one, and the right end of the slide plate overlaps the side wall of the adjacent pad;

[0011] The two sliders are fixedly connected to a limit pin on one side opposite to the other, one end of the limit pin passes through the slide slot and extends to the inside of the movable slot, and both sides of the wedge plate are provided with limit holes, and the two limit holes correspond to the two limit pins one by one;

[0012] A T-shaped pressure rod matched with a trapezoidal limit block is movably inserted into the inner wall of the movable groove, one end of the T-shaped pressure rod passes through the grinding plate and overlaps the surface of the transmission adjustment mechanism, and a cutting blade is fixedly connected to the right side of the grinding plate.

[0013] Preferably, the right end of the slide plate is fixedly connected with a pad rod, and the right end of the slide plate is overlapped with the side wall of the pad block through the pad rod;

[0014] A rectangular block is fixedly connected to the middle of the inner wall of the slide slot, the middle of the slide plate is movably inserted into the middle of the rectangular block, and the extrusion spring is arranged between the slide plate and the side wall of the rectangular block.

[0015] Preferably, the inner wall of the slide groove is provided with a plug hole matched with the limit pin, the limit pin passes through the plug hole and extends to the inside of the movable groove, and the side of the limit pin close to the wedge plate is set as an inclined surface.

[0016] Preferably, the transmission adjustment mechanism comprises a main synchronous bevel gear, the main synchronous bevel gear is fixedly sleeved on the right side of the reciprocating screw rod, and the right end of the reciprocating screw rod is fixedly sleeved with a slave synchronous bevel gear;

[0017] The right side of the grinder bracket is symmetrically and movably connected with a transmission gear rod, and the two transmission gear rods are respectively arranged on both sides of the gear rod, and the surface of the transmission gear rod is meshed with the surface of the gear rod. The two transmission gear rods correspond to two reciprocating screw rods one by one, and the right side of the transmission gear rod is fixedly sleeved with a main transmission bevel gear, and the side wall of the main transmission bevel gear is meshed with the side wall of the adjacent main synchronous bevel gear, and the right end of the transmission gear rod is fixedly sleeved with a slave transmission bevel gear that matches the slave synchronous bevel gear;

[0018] Both sides of the reciprocating screw rod are provided with connecting blocks, the surface of the connecting block is symmetrically slidably connected with a cross bar, one end of the cross bar is fixedly connected to the inner wall of the grinder bracket, the middle part of the cross bar is movably sleeved with a pressure spring, a cross plate is fixedly connected between the two connecting blocks, and the side wall of the cross plate overlaps the end of the adjacent low-speed trigger mechanism;

[0019] A groove is provided in the middle of the right connecting block, and waist-shaped grooves are symmetrically provided on the inner wall of the groove. A T-shaped adjusting rod is slidably connected between the two waist-shaped grooves, and the right end of the T-shaped adjusting rod is rotatably connected to the left end of the adjacent transmission gear rod.

[0020] Preferably, the main synchronous bevel gear and the main transmission bevel gear are of the same size;

[0021] The diameter of the slave synchronous bevel gear is set to be twice the diameter of the slave transmission bevel gear.

[0022] Preferably, the inner wall of the grinder bracket is symmetrically provided with movable grooves, two movable grooves correspond to two screw sleeves one by one, and the side walls of the screw sleeves are slidably connected to the insides of adjacent movable grooves;

[0023] A loading hole matching with the main clamp is provided on the left side of the grinder bracket, a supporting bearing is fixedly connected between the outer ring of the main clamp and the side wall of the grinder bracket, and the main clamp has the same structure as the slave clamp.

[0024] A method for using a cylindrical wood outer surface grinding device comprises the following steps:

[0025] S1. When in use, insert the cylindrical wood into the grinder bracket from the loading hole on the left side of the grinder bracket, and then the main clamp and the slave clamp respectively clamp the two ends of the cylindrical wood, and then start the motor to engage the transmission gear with the transmission gear ring, so that the clamped cylindrical wood rotates inside the grinder bracket, and at the same time, the slave clamp drives the gear rod to engage with the surfaces of two adjacent transmission gear rods as the cylindrical wood rotates, so that the transmission gear rod drives the main transmission bevel gear to engage with the adjacent main synchronous bevel gear, and at this time, the main synchronous bevel gear drives the reciprocating screw to rotate, and at this time, the screw sleeve on the reciprocating screw drives the support plate and the grinding plate to reciprocate inside the grinder bracket to grind the surface of the cylindrical wood;

[0026] S2. When the grinding plate encounters a nodule on the surface of the cylindrical wood during movement, the inclined surface of the wedge-shaped plate side wall of the grinding plate side wall is pressed to move toward the inside of the grinding plate. At this time, the wedge-shaped plate moves horizontally to the left side of the inner wall of the limiting groove with the latch pin and the trapezoidal limit block. Then, the pad block of the wedge-shaped plate side wall releases the pressure on the right end of the slide plate. Under the elastic recovery of the extrusion spring, the slide plate slides to the left side of the slide groove. During the sliding process of the left side of the slide plate cooperating with the inclined groove on the surface of the slider, the slider moves toward the inside of the movable groove with the limit pin.

[0027] S3, then when the trapezoidal limit block moves to the left side of the limit groove to the limit position, the limit pin is inserted into the limit hole of the side wall of the trapezoidal limit block to limit the trapezoidal limit block. At the same time, as the trapezoidal limit block translates to the left, the trapezoidal limit block presses the T-shaped pressure rod to move toward the outer direction of the polishing plate, and the T-shaped pressure rod presses the corresponding cross plate to move. At this time, the connecting blocks at both ends of the cross plate slide on the surface of the corresponding cross bar. In this process, the waist groove on the right connecting block cooperates with the corresponding T-shaped adjusting rod to slide, so that the T-shaped adjusting rod translates to the right with the transmission gear rod, so that the transmission gear rod engages with the corresponding slave synchronous bevel gear with the slave transmission bevel gear. Under the action of the meshing transmission of the small gear and the large gear, the rotation speed of the reciprocating screw is reduced, so that the speed of the polishing plate is reduced and the position of the cylindrical wood node is polished;

[0028] S4. Finally, as the grinding plate continues to translate, after the wedge plate passes over the cylindrical wood node, the spring buffer rod slowly returns to the original position with the wedge plate. When the wedge block is about to move to the limit position with the cushion block, the cushion block presses against the right end of the slide plate and translates the slide plate to the right. During the sliding of the left end of the slide plate and the inclined groove of the slider, the slider moves toward the inside of the slide groove with the limit pin. At this time, the limit pin releases the connection with the limit hole on the side wall of the trapezoidal limit block, so that the compression spring elastically recovers and returns to the original position with the trapezoidal limit block.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the present invention, through the coordinated use of components such as the grinder bracket, the low-speed trigger mechanism and the transmission adjustment mechanism, when the cylindrical wood inside the grinder bracket rotates, the reciprocating grinding plate grinds the surface of the rotating wood, and when the wedge-shaped plate on the side wall of the grinding plate contacts the nodules on the surface of the wood during movement, the low-speed trigger mechanism and the transmission adjustment mechanism cooperate to automatically reduce the moving speed of the grinding plate, so that the grinding plate can effectively grind the nodule position of the wood, thereby improving the grinding quality.

[0031] In the present invention, through the coordinated use of components such as a slider, a slide plate and a limit pin, when the wedge-shaped plate is pressed by the nodules on the surface of the wood, the wedge-shaped plate translates inside the limit groove with the trapezoidal limit block, and then the extrusion spring moves with the slide plate, and during the coordinated sliding of the inclined groove on the slider and the end of the slide plate, the limit pin is inserted into the limit hole on the side wall of the trapezoidal limit block, and with the cooperation of the low-speed trigger mechanism and the transmission adjustment mechanism, it is ensured that the grinding plate can continuously and stably maintain a low-speed moving state, thereby improving the stability of the grinding plate during low-speed grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a side view of the position of the grinding machine support and the grinding plate of the present invention;

[0033] Figure 2 It is a side cross-sectional view of a local position of a grinding machine support and a grinding plate of the present invention;

[0034] Figure 3 It is a side view of the local position of the grinding plate and the supporting plate of the present invention;

[0035] Figure 4 It is a side cross-sectional view of a local position of a grinding plate and a wedge plate of the present invention;

[0036] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0037] Figure 6 It is a side sectional view of the local position of the wedge plate and the bayonet pin of the present invention;

[0038] Figure 7 A side view of the position of the slider and the slide plate of the present invention;

[0039] Figure 8 It is a side view of the trapezoidal limiting block and the limiting hole of the present invention;

[0040] Fig. 9 A side cross-sectional view of a grinder support and a local position of a clamp of the present invention;

[0041] Fig.10 It is a top view of the local position of the grinding machine bracket and the transmission gear rod of the present invention;

[0042] Fig.11 It is a side view of the local position of the transmission gear rod and the T-shaped adjustment rod of the present invention;

[0043] Fig.12 It is a side sectional view of the position of the trapezoidal limit block and the T-shaped pressure rod of the present invention.

[0044] In the figure: 1, grinding machine bracket; 2, reciprocating screw rod; 3, screw sleeve; 4, support plate; 5, low speed trigger mechanism; 501, telescopic connecting rod; 502, grinding plate; 503, movable groove; 504, spring buffer rod; 505, wedge plate; 506, limit groove; 507, trapezoidal limit block; 508, compression spring; 509, latch; 510, slide groove; 511, slider; 512, inclined groove; 513, slide plate; 514, extrusion spring; 515, cushion block; 516, limit pin; 517, limit hole; 5 18. T-type pressure rod; 519. cutting blade; 6. transmission adjustment mechanism; 601. main synchronous bevel gear; 602. slave synchronous bevel gear; 603. transmission gear rod; 604. main transmission bevel gear; 605. slave transmission bevel gear; 606. connecting block; 607. cross bar; 608. pressure spring; 609. cross plate; 610. groove; 611. waist groove; 612. T-type adjustment rod; 7. motor; 8. transmission gear; 9. main clamp; 10. transmission gear ring; 11. slave clamp; 12. gear rod. DETAILED DESCRIPTION

[0045] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 12 The present invention provides a technical solution: a cylindrical wood outer surface grinding device, including a grinder bracket 1, the inner wall of the inner wall of the grinder bracket 1 is symmetrically rotatably connected with a reciprocating screw rod 2, the surface of the reciprocating screw rod 2 is threadedly connected with a screw sleeve 3, the side wall of the screw sleeve 3 is slidably connected to the inner wall of the grinder bracket 1, the side of the screw sleeve 3 away from the grinder bracket 1 is fixedly connected with a support plate 4, and the opposite sides of the two support plates 4 are fixedly connected with a low-speed trigger mechanism 5.

[0047] A transmission adjustment mechanism 6 is movably connected between the right end of the reciprocating screw rod 2 and the surface of the grinder bracket 1 , and one end of the low-speed trigger mechanism 5 overlaps the surface of the transmission adjustment mechanism 6 .

[0048] The lower part of the left side of the grinder bracket 1 is fixedly connected with a motor 7, the rotating end of the motor 7 is fixedly connected with a transmission gear 8, the left side of the grinder bracket 1 is rotatably connected with a main clamper 9, the outer ring of the main clamper 9 is fixedly sleeved with a transmission gear ring 10, and the outer ring of the transmission gear ring 10 is meshed with the outer ring of the transmission gear 8.

[0049] The right side of the inner wall of the grinder bracket 1 is rotatably connected with a slave clamp 11, and the axis position on the right side of the slave clamp 11 is fixedly connected with a gear rod 12 that matches the transmission adjustment mechanism 6, and the middle part of the gear rod 12 is rotatably connected to the surface of the grinder bracket 1. It should be noted that: a mounting bearing is fixedly connected between the surface of the gear rod 12 and the side wall of the grinder bracket 1 to ensure that the gear rod 12 and the slave clamp 11 stably rotate at the side wall position of the grinder bracket 1; when the main clamp 9 and the slave clamp 11 clamp the cylindrical wood, the main clamp 9 can rotate synchronously with the slave clamp 11 during the rotation process.

[0050] In this embodiment, Figures 1 to 12 As shown, the low-speed trigger mechanism 5 includes a telescopic connecting rod 501, which is provided with two telescopic connecting rods 501. The two telescopic connecting rods 501 are symmetrically fixedly connected to the side wall of the support plate 4. A grinding plate 502 is fixedly connected between the two telescopic connecting rods 501. A movable groove 503 is provided inside the grinding plate 502. A spring buffer rod 504 is fixedly connected to the inner wall of the movable groove 503. A wedge plate 505 is fixedly connected to the movable end of the spring buffer rod 504. One end of the wedge plate 505 passes through the movable groove 503 and extends to the outside of the grinding plate 502. It should be noted that: the spring buffer rod 504 is provided as a gas spring rod, so that the spring buffer rod 504 can be slowly restored after being compressed; the telescopic connecting rod 501 is provided as an electric telescopic rod type, which is convenient for adjusting the position of the grinding plate 502; the wedge blocks on the two grinding plates 502 are arranged in opposite directions to ensure that during the rotation of the wood, the knots on the wood can press the wedge blocks to move to the inside of the movable groove 503.

[0051] The inner wall of the movable groove 503 is provided with a limit groove 506, and a trapezoidal limit block 507 is slidably connected inside the limit groove 506. A compression spring 508 is fixedly connected between the side wall of the trapezoidal limit block 507 and the inner wall of the limit groove 506. A latch 509 is fixedly connected to the side of the trapezoidal limit block 507 close to the wedge plate 505, and the side wall of the latch 509 overlaps the side wall of the wedge plate 505. It should be noted that: an arc groove is provided on the side of the wedge plate 505 close to the spring buffer rod 504, and the latch 509 overlaps the inner wall of the arc groove. When the wedge plate 505 moves to the left, the wedge plate 505 moves synchronously with the latch 509 and the trapezoidal limit block 507 through the arc groove; an isolation pad is provided between the surface of the wedge plate 505 and the inner wall of the grinding plate 502 to prevent dust from entering the inside of the movable groove 503.

[0052] The inner wall of the movable groove 503 is symmetrically provided with slide grooves 510, and the two slide grooves 510 are respectively arranged on both sides of the limiting groove 506. The left side of the inner wall of the slide groove 510 is slidably connected with a slider 511, and the surface of the slider 511 is provided with an inclined groove 512. The right side of the inner wall of the slide groove 510 is slidably connected with a slide plate 513, and the left end of the slide plate 513 is slidably connected inside the inclined groove 512. An extrusion spring 514 is movably connected between the middle of the slide plate 513 and the inner wall of the slide groove 510. The left side of the wedge plate 505 is symmetrically fixedly connected with a cushion block 515, and the two cushion blocks 515 correspond to the two slide plates 513 one by one, and the right end of the slide plate 513 overlaps the side wall of the adjacent cushion block 515. It should be noted that: the sliding direction of the slider 511 is perpendicular to the sliding direction of the slide plate 513. When the slide plate 513 moves horizontally, the slider 511 moves longitudinally inside the slide groove 510 under the cooperation of the inclined groove 512.

[0053] The two sliders 511 are fixedly connected to the opposite sides with a limit pin 516, one end of which passes through the slide groove 510 and extends to the inside of the movable groove 503. Limit holes 517 are provided on both sides of the wedge plate 505, and the two limit holes 517 correspond to the two limit pins 516 one by one.

[0054] The inner wall of the movable groove 503 is movably interspersed with a T-shaped pressure rod 518 that matches the trapezoidal stop block 507. One end of the T-shaped pressure rod 518 penetrates the grinding plate 502 and overlaps the surface of the transmission adjustment mechanism 6. The right side of the grinding plate 502 is fixedly connected with a cutting blade 519. It should be noted that: a retaining ring is fixedly connected to the middle of the T-shaped pressure rod 518, and the side wall of the retaining ring overlaps the side wall of the grinding plate 502; when the wedge plate 505 moves to the left with the trapezoidal stop block 507, the inclined surface of the trapezoidal stop block 507 presses against the end of the T-shaped pressure rod 518, so that the T-shaped pressure rod 518 moves toward the direction of the transmission adjustment mechanism 6; the cutting blade 519 is used to cut the knots on the surface of the wood to improve the grinding effect.

[0055] In this embodiment, Figures 1 to 12 As shown, the right end of the slide plate 513 is fixedly connected with a pad rod, and the right end of the slide plate 513 overlaps with the side wall of the pad block 515 through the pad rod.

[0056] A rectangular block is fixedly connected to the middle of the inner wall of the slide groove 510, the middle of the slide plate 513 is movably inserted in the middle of the rectangular block, and the extrusion spring 514 is arranged between the slide plate 513 and the side wall of the rectangular block. It should be noted that the two sides of the slide plate 513 are plate-shaped, and the middle of the slide plate 513 is a columnar structure, so that the middle of the slide plate 513 can stably slide inside the rectangular block.

[0057] In this embodiment, Figures 1 to 12As shown, the inner wall of the slide groove 510 is provided with an insertion hole matched with the limit pin 516, and the limit pin 516 extends through the insertion hole to the inside of the movable groove 503, and the side of the limit pin 516 close to the wedge plate 505 is set as an inclined surface. It should be noted that: through the setting of the inclined surface, when the trapezoidal limit block 507 moves to the left, the trapezoidal limit block 507 can press the limit pin 516 to move to the inside of the slide groove 510, and when the limit hole 517 on the side wall of the trapezoidal limit block 507 moves to the position of the limit pin 516, the limit pin 516 can be inserted into the corresponding limit hole 517 to limit the moved trapezoidal limit block 507.

[0058] In this embodiment, Figures 1 to 12 As shown, the transmission adjustment mechanism 6 includes a main synchronous bevel gear 601, which is fixedly sleeved on the right side of the reciprocating screw rod 2, and a slave synchronous bevel gear 602 is fixedly sleeved on the right end of the reciprocating screw rod 2.

[0059] The right side of the grinder bracket 1 is symmetrically and movably connected with a transmission gear rod 603, and the two transmission gear rods 603 are respectively arranged on both sides of the gear rod 12, and the surface of the transmission gear rod 603 is meshed with the surface of the gear rod 12. The two transmission gear rods 603 correspond to the two reciprocating screw rods 2 one by one, and the right side of the transmission gear rod 603 is fixedly sleeved with a main transmission bevel gear 604, and the side wall of the main transmission bevel gear 604 is meshed with the side wall of the adjacent main synchronous bevel gear 601. The right end of the transmission gear rod 603 is fixedly sleeved with a slave transmission bevel gear 605 that matches the slave synchronous bevel gear 602. It should be noted that: when the transmission gear rod 603 moves to the right with the slave transmission bevel gear 605 to mesh with the corresponding slave synchronous bevel gear 602, the teeth on the surface of the transmission gear rod 603 are still meshed with the teeth on the surface of the gear rod 12.

[0060] A connecting block 606 is provided on both sides of the reciprocating screw 2, and a cross bar 607 is symmetrically slidably connected to the surface of the connecting block 606, one end of the cross bar 607 is fixedly connected to the inner wall of the grinder bracket 1, and a pressure spring 608 is movably sleeved in the middle of the cross bar 607, and a cross plate 609 is fixedly connected between the two connecting blocks 606, and the side wall of the cross plate 609 overlaps the end of the adjacent low-speed trigger mechanism 5. It should be noted that: the side wall of the cross plate 609 overlaps the T-shaped pressure rod 518 on the low-speed trigger mechanism 5; the two cross bars 607 on the same side are respectively arranged at the upper and lower sides of the reciprocating screw 2 to avoid interference between the installation of the cross bar 607 and the reciprocating screw 2, and the connecting block 606 will not contact the surface of the reciprocating screw 2 when the surface of the cross bar 607 moves to the extreme position.

[0061] A groove 610 is provided in the middle of the right connecting block 606 , and waist-shaped grooves 611 are symmetrically provided on the inner wall of the groove 610 . A T-shaped adjusting rod 612 is slidably connected between the two waist-shaped grooves 611 , and the right end of the T-shaped adjusting rod 612 is rotatably connected to the left end of the adjacent transmission gear rod 603 . It should be noted that: the waist-shaped groove 611 is set as an inclined groove. When the cross plate 609 is pressed and carries the connecting block 606 to slide on the surface of the cross bar 607, during the sliding cooperation between the waist-shaped groove 611 and the T-shaped adjusting rod 612, the T-shaped adjusting rod 612 carries the transmission gear rod 603 to translate at the side wall position of the grinder bracket 1; the two connecting blocks 606 on the right side correspond to the two transmission gear rods 603 on the right side of the grinder bracket 1 one by one, and a connecting bearing is fixedly connected between the right end of the T-shaped adjusting rod 612 and the left end of the corresponding transmission gear 8 rod. When the transmission gear 8 rod rotates, it will not rotate with the T-shaped adjusting rod 612 to avoid interference, and the T-shaped adjusting rod 612 can translate with the transmission gear rod 603 during movement.

[0062] In this embodiment, Figures 1 to 12 As shown, the main synchronous bevel gear 601 and the main transmission bevel gear 604 are of the same size.

[0063] The diameter of the slave synchronous bevel gear 602 is set to be twice the diameter of the slave transmission bevel gear 605. It should be noted that when the slave transmission bevel gear 605 is meshed with the slave synchronous bevel gear 602, in the process of the small gear driving the large gear, the rotation speed of the slave synchronous bevel gear 602 and the reciprocating screw 2 can be reduced, and the translation speed of the grinding plate 502 can be reduced, so as to effectively grind the knot position of the cylindrical wood.

[0064] In this embodiment, Figures 1 to 12 As shown, the inner wall of the grinder bracket 1 is symmetrically provided with movable grooves, and the two movable grooves correspond to the two screw sleeves 3 one by one, and the side walls of the screw sleeves 3 are slidably connected inside the adjacent movable grooves. It should be noted that a discharge groove is provided on the front side of the grinder bracket 1, and the inner bottom surface of the grinder bracket 1 is set as an inclined surface to facilitate the discharge of debris generated during the grinding process.

[0065] A feeding hole matching with the main clamp 9 is provided on the left side of the grinder bracket 1. A supporting bearing is fixedly connected between the outer ring of the main clamp 9 and the side wall of the grinder bracket 1. The main clamp 9 has the same structure as the slave clamp 11. It should be noted that the main clamp 9 is composed of a turntable, an electric telescopic rod and an arc clamping plate. The wood is clamped by two electric telescopic rods with two arc clamping plates moving relative to each other. The above-mentioned main clamp 9 and slave clamp 11 are both prior art and will not be described in detail.

[0066] In this embodiment, Figures 1 to 12 As shown, a method for using a cylindrical wood outer surface grinding device comprises the following steps:

[0067] S1. When in use, insert the cylindrical wood into the grinder bracket 1 from the loading hole on the left side of the grinder bracket 1, and then the main clamp 9 and the slave clamp 11 clamp the two ends of the cylindrical wood respectively, and then start the motor 7 to engage the transmission gear 8 with the transmission gear ring 10, so that the clamped cylindrical wood rotates inside the grinder bracket 1, and at the same time, the slave clamp 11 engages with the gear rod 12 with the surfaces of the two adjacent transmission gear rods 603 as the cylindrical wood rotates, so that the transmission gear rod 603 engages with the main transmission bevel gear 604 and the adjacent main synchronous bevel gear 601, and at this time, the main synchronous bevel gear 601 rotates with the reciprocating screw rod 2, and at this time, the screw sleeve 3 on the reciprocating screw rod 2 moves back and forth with the support plate 4 and the grinding plate 502 in the grinder bracket 1 to grind the surface of the cylindrical wood;

[0068] S2. When the grinding plate 502 encounters a nodule on the surface of the cylindrical wood during its movement, the inclined surface of the side wall of the wedge plate 505 of the side wall of the grinding plate 502 is pressed to move toward the inside of the grinding plate 502. At this time, the wedge plate 505 moves horizontally toward the left side of the inner wall of the limiting groove 506 with the latch 509 and the trapezoidal limiting block 507. Then, the pad 515 on the side wall of the wedge plate 505 releases the pressure on the right end of the slide plate 513. Under the elastic recovery of the extrusion spring 514, the slide plate 513 slides to the left side of the slide groove 510. During the sliding process of the left side of the slide plate 513 cooperating with the inclined groove 512 on the surface of the slider 511, the slider 511 moves toward the inside of the movable groove 503 with the limiting pin 516.

[0069] S3, when the trapezoidal limit block 507 moves to the left side of the limit groove 506 to the limit position, the limit pin 516 is inserted into the limit hole 517 on the side wall of the trapezoidal limit block 507 to limit the trapezoidal limit block 507. At the same time, as the trapezoidal limit block 507 moves to the left, the trapezoidal limit block 507 presses the T-shaped pressure rod 518 to move toward the outside of the grinding plate 502, and the T-shaped pressure rod 518 presses the corresponding cross plate 609 to move. At this time, the connecting blocks 606 at both ends of the cross plate 609 are in the corresponding cross positions. The surface of the rod 607 slides, and during this process, the waist groove 611 on the right connecting block 606 cooperates with the corresponding T-shaped adjusting rod 612 to slide, so that the T-shaped adjusting rod 612 moves rightward with the transmission gear rod 603, so that the transmission gear rod 603 engages with the corresponding slave synchronous bevel gear 602 with the slave transmission bevel gear 605. Under the action of the meshing transmission of the small gear and the large gear, the rotation speed of the reciprocating screw rod 2 is reduced, so that the speed of the grinding plate 502 is reduced and the position of the cylindrical wood knot is grinded;

[0070] S4. Finally, as the sanding plate 502 continues to translate, after the wedge plate 505 passes over the cylindrical wood node, the spring buffer rod 504 slowly returns to the original position with the wedge plate 505. When the wedge block is about to move to the limit position with the cushion block 515, the cushion block 515 presses against the right end of the slide plate 513 and translates the slide plate 513 to the right. During the sliding of the left end of the slide plate 513 and the inclined groove 512 of the slider 511, the slider 511 moves toward the inside of the slide groove 510 with the limit pin 516. At this time, the limit pin 516 releases the connection with the limit hole 517 on the side wall of the trapezoidal limit block 507, so that the compression spring 508 elastically recovers and returns to the original position with the trapezoidal limit block 507.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cylindrical wood outer surface grinding device, comprising a grinding machine support (1), characterized in that: The inner wall of the inner wall of the grinder support (1) is symmetrically rotatably connected to a reciprocating screw rod (2), the surface of the reciprocating screw rod (2) is threadedly connected to a screw sleeve (3), the side wall of the screw sleeve (3) is slidably connected to the inner wall of the grinder support (1), the side of the screw sleeve (3) away from the grinder support (1) is fixedly connected to a support plate (4), and the opposite sides of the two support plates (4) are fixedly connected to a low-speed trigger mechanism (5); A transmission adjustment mechanism (6) is movably connected between the right end of the reciprocating screw rod (2) and the surface of the grinder bracket (1), and one end of the low-speed trigger mechanism (5) overlaps the surface of the transmission adjustment mechanism (6); A motor (7) is fixedly connected to the lower part of the left side of the grinder bracket (1), a transmission gear (8) is fixedly connected to the rotating end of the motor (7), a main clamp (9) is rotatably connected to the left side of the grinder bracket (1), a transmission gear ring (10) is fixedly sleeved on the outer ring of the main clamp (9), and the outer ring of the transmission gear ring (10) is meshed with the outer ring of the transmission gear (8); The right side of the inner wall of the grinder bracket (1) is rotatably connected to a slave clamp (11), the axis position on the right side of the slave clamp (11) is fixedly connected to a gear rod (12) that cooperates with the transmission adjustment mechanism (6), and the middle part of the gear rod (12) is rotatably connected to the surface of the grinder bracket (1); The low-speed trigger mechanism (5) comprises a telescopic connecting rod (501), wherein the number of the telescopic connecting rods (501) is two, the two telescopic connecting rods (501) are symmetrically fixedly connected to the side wall of the support plate (4), a grinding plate (502) is fixedly connected between the two telescopic connecting rods (501), a movable groove (503) is provided inside the grinding plate (502), a spring buffer rod (504) is fixedly connected to the inner wall of the movable groove (503), a wedge plate (505) is fixedly connected to the movable end of the spring buffer rod (504), and one end of the wedge plate (505) passes through the movable groove (503) and extends to the outside of the grinding plate (502); The inner wall of the movable groove (503) is provided with a limiting groove (506), the inner part of the limiting groove (506) is slidably connected with a trapezoidal limiting block (507), a compression spring (508) is fixedly connected between the side wall of the trapezoidal limiting block (507) and the inner wall of the limiting groove (506), a latch (509) is fixedly connected to a side of the trapezoidal limiting block (507) close to the wedge plate (505), and the side wall of the latch (509) overlaps the side wall of the wedge plate (505); The inner wall of the movable groove (503) is symmetrically provided with sliding grooves (510), and the two sliding grooves (510) are respectively arranged on both sides of the limiting groove (506). The left side of the inner wall of the sliding groove (510) is slidably connected with a slider (511), and the surface of the slider (511) is provided with an inclined groove (512). The right side of the inner wall of the sliding groove (510) is slidably connected with a slide plate (513), and the left end of the slide plate (513) is slidably connected inside the inclined groove (512). An extrusion spring (514) is movably connected between the middle part of the slide plate (513) and the inner wall of the sliding groove (510). A cushion block (515) is symmetrically fixedly connected to the left side of the wedge plate (505), and the two cushion blocks (515) correspond to the two slide plates (513) one by one. The right end of the slide plate (513) overlaps the side wall of the adjacent cushion block (515). The two sliders (511) are fixedly connected to a limiting pin (516) on opposite sides, one end of the limiting pin (516) passes through the slide groove (510) and extends to the inside of the movable groove (503), and limiting holes (517) are provided on both sides of the wedge plate (505), and the two limiting holes (517) correspond to the two limiting pins (516) one by one; A T-shaped pressure rod (518) that cooperates with the trapezoidal limit block (507) is movably inserted into the inner wall of the movable groove (503); one end of the T-shaped pressure rod (518) passes through the grinding plate (502) and overlaps the surface of the transmission adjustment mechanism (6); and a cutting blade (519) is fixedly connected to the right side of the grinding plate (502).

2. A cylindrical wood outer surface polishing device according to claim 1, characterized in that: The right end of the slide plate (513) is fixedly connected to a pad rod, and the right end of the slide plate (513) overlaps the side wall of the pad block (515) through the pad rod; A rectangular block is fixedly connected to the middle of the inner wall of the slide groove (510), the middle of the slide plate (513) is movably inserted into the middle of the rectangular block, and the compression spring (514) is arranged between the slide plate (513) and the side wall of the rectangular block.

3. A cylindrical wood outer surface polishing device according to claim 2, characterized in that: The inner wall of the slide groove (510) is provided with an insertion hole matched with the limit pin (516), the limit pin (516) passes through the insertion hole and extends to the inside of the movable groove (503), and the side of the limit pin (516) close to the wedge plate (505) is set as an inclined surface.

4. A cylindrical wood outer surface grinding device according to claim 3, characterized in that: The transmission adjustment mechanism (6) comprises a main synchronous bevel gear (601), wherein the main synchronous bevel gear (601) is fixedly sleeved on the right side of the reciprocating screw rod (2), and a slave synchronous bevel gear (602) is fixedly sleeved on the right end of the reciprocating screw rod (2); The right side of the grinder bracket (1) is symmetrically and movably connected with a transmission gear rod (603), two transmission gear rods (603) are respectively arranged on both sides of the gear rod (12), the surface of the transmission gear rod (603) meshes with the surface of the gear rod (12), the two transmission gear rods (603) correspond to the two reciprocating screw rods (2) one by one, the right side of the transmission gear rod (603) is fixedly sleeved with a main transmission bevel gear (604), the side wall of the main transmission bevel gear (604) is meshed with the side wall of the adjacent main synchronous bevel gear (601), and the right end of the transmission gear rod (603) is fixedly sleeved with a slave transmission bevel gear (605) that matches the slave synchronous bevel gear (602); Both sides of the reciprocating screw rod (2) are provided with connecting blocks (606), the surface of the connecting block (606) is symmetrically slidably connected with a cross bar (607), one end of the cross bar (607) is fixedly connected to the inner wall of the grinder bracket (1), the middle part of the cross bar (607) is movably sleeved with a pressure spring (608), a cross plate (609) is fixedly connected between the two connecting blocks (606), and the side wall of the cross plate (609) overlaps the end of the adjacent low-speed trigger mechanism (5); A groove (610) is provided in the middle of the right connecting block (606), and waist-shaped grooves (611) are symmetrically provided on the inner wall of the groove (610). A T-shaped adjustment rod (612) is slidably connected between the two waist-shaped grooves (611), and the right end of the T-shaped adjustment rod (612) is rotatably connected to the left end of the adjacent transmission gear rod (603).

5. A cylindrical wood outer surface polishing device according to claim 4, characterized in that: The main synchronous bevel gear (601) and the main transmission bevel gear (604) are of the same size; The diameter of the slave synchronous bevel gear (602) is set to be twice the diameter of the slave transmission bevel gear (605).

6. A cylindrical wood outer surface polishing device according to claim 5, characterized in that: The inner wall of the grinder bracket (1) is symmetrically provided with movable grooves, the two movable grooves correspond to the two screw sleeves (3) one by one, and the side walls of the screw sleeves (3) are slidably connected to the inside of adjacent movable grooves; A loading hole matching the main clamp (9) is provided on the left side of the grinder bracket (1); a supporting bearing is fixedly connected between the outer ring of the main clamp (9) and the side wall of the grinder bracket (1); and the main clamp (9) and the slave clamp (11) have the same structure.

7. The method for using the cylindrical wood outer surface grinding device according to claim 6 comprises the following steps: S1. When in use, a cylindrical wood is inserted into the interior of the grinder support (1) from the loading hole on the left side of the grinder support (1), and then the main clamp (9) and the slave clamp (11) clamp the two ends of the cylindrical wood respectively. Then, the motor (7) is started to drive the transmission gear (8) to mesh with the transmission gear ring (10), so that the clamped cylindrical wood rotates inside the grinder support (1), and at the same time, the slave clamp (11) is driven by the cylindrical wood during the rotation process. The gear rod (12) meshes with the surfaces of two adjacent transmission gear rods (603), so that the transmission gear rod (603) brings the main transmission bevel gear (604) into mesh with the adjacent main synchronous bevel gear (601), and the main synchronous bevel gear (601) brings the reciprocating screw rod (2) to rotate, and the screw sleeve (3) on the reciprocating screw rod (2) brings the support plate (4) and the grinding plate (502) to reciprocate inside the grinding machine bracket (1) to grind the surface of the cylindrical wood; S2. When the grinding plate (502) encounters a nodule on the surface of the cylindrical wood during movement, the inclined surface of the side wall of the wedge plate (505) of the grinding plate (502) is pressed to move toward the inside of the grinding plate (502). At this time, the wedge plate (505) moves horizontally toward the left side of the inner wall of the limiting groove (506) with the latch pin (509) and the trapezoidal limiting block (507). Then, the pad (515) of the side wall of the wedge plate (505) releases the pressure on the right end of the slide plate (513). Under the elastic recovery of the extrusion spring (514), the slide plate (513) slides toward the left side of the slide groove (510). During the sliding process of the left side of the slide plate (513) and the inclined groove (512) on the surface of the slider (511), the slider (511) moves toward the inside of the movable groove (503) with the limiting pin (516); S3, when the trapezoidal limit block (507) moves to the left side of the limit groove (506) to the limit position, the limit pin (516) is inserted into the limit hole (517) on the side wall of the trapezoidal limit block (507) to limit the trapezoidal limit block (507). At the same time, as the trapezoidal limit block (507) moves to the left, the trapezoidal limit block (507) presses the T-shaped pressure rod (518) to move toward the outside of the grinding plate (502), and the T-shaped pressure rod (518) presses the corresponding cross plate (609) to move. At this time, the connecting blocks (606) at both ends of the cross plate (609) are in the opposite direction. The corresponding crossbar (607) slides on the surface. During this process, the waist groove (611) on the right connecting block (606) cooperates with the corresponding T-shaped adjusting rod (612) to slide, so that the T-shaped adjusting rod (612) moves the transmission gear rod (603) to the right, so that the transmission gear rod (603) engages with the slave transmission bevel gear (605) and the corresponding slave synchronous bevel gear (602). Under the action of the meshing transmission of the small gear and the large gear, the rotation speed of the reciprocating screw rod (2) is reduced, so that the speed of the grinding plate (502) is reduced and the position of the cylindrical wood knot is grinded; S4. Finally, as the polishing plate (502) continues to translate, after the wedge plate (505) passes over the cylindrical wood node, the spring buffer rod (504) slowly returns to the original position with the wedge plate (505). When the wedge block is about to move to the limit position with the cushion block (515), the cushion block (515) presses against the right end of the slide plate (513) and translates the slide plate (513) to the right. During the sliding process of the left end of the slide plate (513) and the inclined groove (512) of the slider (511), the slider (511) moves toward the inside of the slide groove (510) with the stop pin (516). At this time, the stop pin (516) is released from the insertion of the stop hole (517) on the side wall of the trapezoidal stop block (507), so that the compression spring (508) elastically recovers and returns to the original position with the trapezoidal stop block (507).

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