Pre-milling mechanism and plate edge banding machine

Abstract

The present invention discloses a pre-milling mechanism and a plate edge banding machine, which relate to the field of plate processing equipment, including a machine platform, wherein a reverse milling cutter assembly is provided on the machine platform, and the reverse milling cutter assembly is connected to the machine platform via a vertical surface moving mechanism, and the vertical surface moving mechanism comprises: a bridge assembly, which comprises a box shell unit fixed to the reverse milling cutter assembly, and the box shell unit is matched with a bracket fixed to the machine platform, and the reverse milling cutter assembly can move on the vertical plane through the bridge assembly, and the trajectory line of the reverse milling cutter assembly in the vertical plane has a milling position overlapping with the plate; a regulating assembly, which comprises a driving unit connected to the box shell unit in a transmission manner, and the driving unit can control the moving position of the box shell unit, and when the milling cutter part of the reverse milling cutter assembly is located at the milling position, the driving unit stops driving. During the adjustment and movement process of the reverse milling cutter assembly, the present invention reduces the position accuracy requirement of the reverse milling cutter assembly for each reset.

Description

Technical Field

[0001] The present invention relates to the technical field of plate processing equipment, in particular to a pre-milling mechanism and a plate edge banding machine. Background Art

[0002] Edge banding is a common processing technology for furniture panels. The edge banding strip is glued and pressed against the side of the panel with adhesive, thereby sealing the edge of the panel and increasing the overall aesthetics and durability of the panel. The most common method is to use a panel edge banding machine to band the panels. In order to make it easier to adhere to the panel surface during edge banding, the existing panel edge banding machine is usually equipped with a pre-milling mechanism to mill and level the side of the panel to be banded.

[0003] The pre-milling mechanism on the plate edge banding machine is mainly composed of a down-cut milling cutter assembly and a reverse-cut milling cutter assembly, which mill the side of the plate in sequence. Specifically, the plate is first milled by the reverse-cut milling cutter assembly. When the reverse-cut milling cutter assembly approaches the end position of the plate, the reverse-cut milling cutter assembly moves horizontally away from the plate body, and then the down-cut milling cutter assembly mills the unmilled part of the reverse-cut milling cutter assembly at the end position of the plate, which helps to prevent the plate end from "collapsed edge" during the pre-milling process of the edge banding machine.

[0004] Then, before milling the next plate, the previous reverse milling cutter assembly needs to be reset to its initial position, so as to re-constitute the same milling plane parallel to the side of the plate with the forward milling cutter assembly. However, the above technical solution has the disadvantage that it requires high position accuracy for each reset of the reverse milling cutter assembly. Otherwise, the reverse milling cutter assembly will protrude too much or not extend long enough, which will affect the quality of the milling and leveling of the plate side, which is not conducive to the subsequent edge banding process. Summary of the Invention

[0005] The purpose of the present invention is to provide a pre-milling mechanism and a plate edge banding machine to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A pre-milling mechanism includes a machine platform, a reverse milling cutter assembly is provided on the machine platform, and the reverse milling cutter assembly is connected to the machine platform via a vertical surface moving mechanism, wherein the vertical surface moving mechanism includes:

[0008] A bridge assembly, comprising a housing unit fixed to a reverse milling cutter assembly, the housing unit being assembled with a bracket fixed to a machine platform, the reverse milling cutter assembly being capable of moving in a vertical plane via the bridge assembly, the trajectory of the reverse milling cutter assembly in the vertical plane having a milling position overlapping with the plate;

[0009] The regulating component includes a driving unit that is transmission-connected to the housing unit, and the driving unit can control the moving position of the housing unit. When the milling cutter part of the reverse milling cutter assembly is located at the milling position, the driving unit stops driving.

[0010] Preferably, the bracket is composed of two support plates respectively located on both sides of the box shell unit, and the top side of each support plate is rotatably mounted with an axis column fixed to the box shell unit, and the box shell unit can deflect with the axis column as the center.

[0011] Preferably, the regulating component also includes a half-toothed disc fixed to the box shell unit, and the driving unit includes a rack meshed with the half-toothed disc, one end of the rack is connected to the driving unit, and the driving unit can cause the rack to move along the length direction of the rack.

[0012] Preferably, the box shell unit includes a box body that accommodates the reverse milling cutter assembly, the outer side of the box body is fixed to the shaft column, and the bottom of the box body is fixed to the half gear disk. When the box body is in a vertical state, the reverse milling cutter assembly is in a milling position. A self-locking release assembly is provided between the box body and the machine table, and the self-locking release assembly can lock the position of the box body in a vertical state.

[0013] Preferably, the self-locking release assembly includes a mounting block fixed to the machine, and also includes a protruding plate unit fixed to the side of the box body. The mounting block is provided with a telescopic unit, and the telescopic unit has an extended position that overlaps with the running track of the protruding plate unit. The telescopic unit can lock the position of the vertical box body in the extended position.

[0014] Preferably, the telescopic unit includes an insertion rod that is vertically movable through the top of the mounting block, the bottom end of the insertion rod can overlap with the running track of the protruding plate unit, and a support wheel unit is movably installed on the top of the insertion rod. When the support wheel unit contacts the bottom of the plate conveyed by the machine, the telescopic unit is in a locked state.

[0015] Preferably, the protruding plate unit includes a plug fixedly connected to the side of the box body, and a movable column is adapted to be inserted into the plug tube. The protruding plate unit has an extended state in which one end of the movable column extends out of the plug tube. The protruding plate unit in the extended state can lock the position of the box body in the vertical state together with the telescopic unit in the locked state.

[0016] Preferably, the support wheel unit includes a limit plate fixed to the top of the insertion rod, a roller is rotatably mounted on the limit plate, and the limit plate is connected to the mounting block via a plurality of springs.

[0017] Preferably, the bottom end of the insertion rod is a spherical end.

[0018] Preferably, the plate edge banding machine is provided with the above-mentioned pre-milling mechanism.

[0019] In the above technical solution, the present invention provides a pre-milling mechanism, which limits the movement range of the reverse milling cutter assembly to a vertical plane overlapping with the plate by setting a bridge assembly and a regulating assembly. When the milling cutter part of the reverse milling cutter assembly is in the milling position, the driving unit stops driving, thereby enabling the reverse milling cutter assembly to mill the plate at the milling position. Since the reverse milling cutter assembly is limited in the vertical plane, the reverse milling cutter assembly and the forward milling cutter assembly on the vertical plane are always on the same milling plane parallel to the side of the plate. During the adjustment and movement of the reverse milling cutter assembly, it is only necessary to move the reverse milling cutter to the milling position for milling the plate, which reduces the position accuracy requirement of the reverse milling cutter assembly for each reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the position of a pre-milling mechanism on a plate edge banding machine according to the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of a pre-milling mechanism of the present invention;

[0023] Figure 3 Schematic diagram of a driving mechanism in another embodiment of a pre-milling mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of a path groove of a pre-milling mechanism on the groove wall of a trajectory groove of the present invention.

[0025] Description of reference numerals:

[0026] 1. Machine; 2. Up-cut milling cutter assembly; 3.1. Housing unit; 3.11. Housing; 3.12. Heat dissipation vent; 3.2. Bracket; 3.21. Support plate; 3.22. Shaft column; 4. Control assembly; 4.1. Drive mechanism; 4.11. Rack; 4.12. Drive unit; 4.121. Extension rod; 4.122. Load plate; 4.123. Strip opening; 4.124. Insert column; 4.125 , track groove; 4.126, path groove; 4.127, sliding column; 4.128, side convex plate; 4.2, half toothed disc; 5, self-locking disassembly assembly; 5.1, mounting block; 5.2, convex plate unit; 5.21, insert tube; 5.22, movable column; 5.3, telescopic unit; 5.31, insert rod; 5.32, support wheel unit; 5.321, limit plate; 5.322, roller; 5.323, spring; 6, limit block. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The plate edge banding machine has a linear conveyor chain system for clamping and conveying the plate, thereby conveying the plate in a straight line on a horizontal plane. In the prior art, the plate is first milled by the reverse milling cutter assembly. When the reverse milling cutter assembly approaches the end position of the plate, the reverse milling cutter assembly moves horizontally and away from the plate body. Then the forward milling cutter assembly mills the unmilled part of the reverse milling cutter assembly at the end position of the plate, which helps to prevent the end of the plate from "breaking the edge" during the pre-milling process of the edge banding machine. In other words, taking the same side of the plate as an example, the forward end of the plate is A, the tail end of the plate is B, and the position of the plate close to the tail end B is C. During the movement of the plate, points A, B, and C pass through the reverse milling cutter at the machine position E and the forward milling cutter at the machine position F in turn. The forward milling cutter and the reverse milling cutter form a milling plane parallel to the side of the plate, wherein the reverse milling cutter is responsible for milling the A to B segment, and the forward milling cutter is responsible for milling the B to C segment. When the reverse milling cutter mills to point B, the reverse milling cutter assembly moves on the horizontal plane where the plate is located and moves away from the plate, and the reverse milling cutter retreats from machine position E to machine position E1, that is, the reverse milling cutter no longer mills the side surface of the plate, and the line connecting position E1 and E is perpendicular to the positions of point E and point F. When the forward milling cutter completes milling of section B to C, the reverse milling cutter is reset from machine position E1 to machine position E, and the forward milling cutter assembly re-constitutes the same milling plane parallel to the side surface of the plate. This requires high position accuracy for each reset of the reverse milling cutter assembly. For example; if the reverse milling cutter assembly is not extended long enough after reset, the forward milling cutter will mill end A, causing end A of the plate to collapse; or the reverse milling cutter assembly is too protruding, resulting in the plate section B to C having a protrusion that the forward milling cutter cannot mill. All of the above will affect the quality of the side milling and leveling of the plate, which is not conducive to the subsequent edge banding process, requires multiple corrections and adjustments, and also affects the processing efficiency.

[0029] See also Figure 1-4 The embodiment of the present invention provides a pre-milling mechanism, comprising a machine platform 1, a reverse milling cutter assembly 2 provided on the machine platform 1, and the reverse milling cutter assembly 2 is connected to the machine platform 1 via a vertical surface moving mechanism, and the vertical surface moving mechanism comprises;

[0030] The bridge assembly 3 includes a housing unit 3.1 fixed to the up-cutting cutter assembly 2. The housing unit 3.1 is assembled with a bracket 3.2 fixed to the machine table 1. The up-cutting cutter assembly 2 can move in a vertical plane via the bridge assembly 3. The trajectory of the up-cutting cutter assembly 2 in the vertical plane has a milling position that overlaps with the plate.

[0031] The regulating assembly 4 includes a driving mechanism 4.1 connected to the housing unit 3.1. The driving mechanism 4.1 can control the movement position of the housing unit 3.1. When the milling cutter portion of the reverse milling cutter assembly 2 is in the milling position, the driving mechanism 4.1 stops driving.

[0032] Specifically, the reverse milling cutter assembly 2 includes a servo motor and a milling wheel mounted on the output shaft of the servo motor. The milling wheel can reverse mill the side of the plate when running at high speed. The reverse milling cutter wheel and the forward milling cutter wheel are on the same milling plane. The bridge assembly 3 limits the overall motion range of the reverse milling cutter assembly 2 to the same vertical plane. The vertical plane has a position that intersects and overlaps with the plate. At the cross-overlapping position, the milling wheel of the reverse milling cutter assembly 2 can mill the side of the plate. The driving mechanism 4.1 in the control assembly 4 provides driving force for the overall motion of the reverse milling cutter assembly 2.

[0033] In actual use, when the regulating component 4 is driven in the forward direction, under the connecting guide action of the bridge component 3, the reverse milling cutter component 2 moves toward the position where it intersects and overlaps with the plate on the vertical plane, until the reverse milling cutter component 2 reaches the intersecting and overlapping position, the regulating component 4 stops driving, so that the reverse milling cutter component 2 can form a milling plane with the forward milling cutter at the intersecting and overlapping position, and the milling plane is parallel to the side of the plate, thereby milling the side of the plate. Similarly, when the reverse milling cutter component 2 needs to be away from the plate, the regulating component 4 is driven in the reverse direction, from the connecting guide of the bridge component 3 Under the action of the reverse milling cutter assembly 2, the reverse milling cutter assembly 2 moves away from the position where the plates intersect and overlap on the vertical plane, and the plates are no longer milled. Since the reverse milling cutter assembly 2 is limited in the vertical plane, the reverse milling cutter assembly 2 and the forward milling cutter assembly on the vertical plane are always on the same milling plane parallel to the side of the plate. During the adjustment and movement of the reverse milling cutter assembly 2, it is only necessary to move the reverse milling cutter assembly 2 to the milling position for milling the plate, without considering whether the reverse milling cutter assembly 2 is on the same milling surface as the forward milling cutter, thereby reducing the position accuracy requirements of the reverse milling cutter assembly for each reset.

[0034] In another embodiment provided by the present invention, the bracket 3.2 is composed of two support plates 3.21 respectively located on both sides of the box shell unit 3.1. The support plates 3.21 are fixed with limit blocks 6. The top side of each support plate 3.21 is rotatably mounted with a shaft column 3.22 fixed to the box shell unit 3.1. The box shell unit 3.1 can deflect with the shaft column 3.22 as the center of the circle. The axis of the shaft column 3.22 is perpendicular to the vertical plane where the reverse milling cutter assembly 2 is located. The trajectory line generated by the deflection of the box shell unit 3.1 is located on the vertical plane.

[0035] Furthermore, the control assembly 4 also includes a half toothed disc 4.2 fixed to the housing unit 3.1, the center of the half toothed disc 4.2 coincides with the axis of the shaft column 3.22, and the drive mechanism 4.1 includes a rack 4.11 meshing with the half toothed disc 4.2, the length direction of the rack 4.11 being parallel to the horizontal plane, and one end of the rack 4.11 is connected to a drive unit 4.12, which is capable of causing the rack 4.11 to move along the length direction of the rack 4.11;

[0036] The housing unit 3.1 includes a housing 3.11 for accommodating the reverse milling cutter assembly 2. The side of the housing 3.11 is provided with a plurality of heat dissipation vents 3.12. The outer side of the housing 3.11 is fixed to the shaft column 3.22. The bottom of the housing 3.11 is fixed to the half gear plate 4.2. The deflection surface of the half gear plate 4.2 is parallel to the vertical plane. When the housing 3.11 is in a vertical state, the reverse milling cutter assembly 2 is in a milling position. A self-locking release assembly 5 is provided between the housing 3.11 and the machine table 1. The self-locking release assembly 5 can lock the housing 3.11 in a vertical state.

[0037] In actual use, when the drive unit 4.12 is driven in the forward direction, the rack 4.11 moves forward along its length. At this time, the half gear plate 4.2 drives the box body 3.11 to deflect forward, thereby deflecting the box body 3.11 from a reclining state to a vertical state. When the box body 3.11 is in the vertical state, the box body 3.11 contacts the limit block 6, thereby ensuring that the box body 3.11 stops in the vertical state. Preferably, a small verticality monitoring device can be integrated on the limit block 6 to facilitate real-time monitoring of the box body 3.11. 11 is vertical in the vertical state, which facilitates timely correction in case of abnormality. At this time, the driving unit 4.12 stops driving. Similarly, when the driving unit 4.12 is driven in the reverse direction, the rack 4.11 moves in the reverse direction along the length direction of the rack 4.11. At this time, the half toothed disc 4.2 drives the box 3.11 to deflect in the reverse direction, so that the box 3.11 deflects from the vertical state to the reclining state, thereby making the reverse milling cutter assembly 2 move away from the milling position. During the whole process, the movement trajectory of the reverse milling cutter assembly 2 is on the same vertical plane.

[0038] In another embodiment provided by the present invention, the self-locking release assembly 5 includes a mounting block 5.1 fixed to the machine platform 1, and a protruding plate unit 5.2 fixed to the side of the box body 3.11. The mounting block 5.1 is provided with a telescopic unit 5.3. The telescopic unit 5.3 has a second extended position that overlaps with the running trajectory of the protruding plate unit 5.2. The telescopic unit 5.3 can lock the vertical box body 3.11 in the second extended position.

[0039] Specifically, the telescopic unit 5.3 includes an insertion rod 5.31 that is vertically movable and penetrates the top of the mounting block 5.1. The bottom end of the insertion rod 5.31 can overlap the running track of the protruding plate unit 5.2. A support wheel unit 5.32 is movably installed on the top of the insertion rod 5.31. When the support wheel unit 5.32 contacts the bottom of the plate conveyed by the machine 1, the telescopic unit 5.3 is in a locked state.

[0040] Furthermore, the support wheel unit 5.32 includes a limit plate 5.321 fixed to the top of the insertion rod 5.31, a roller 5.322 is rotatably mounted on the limit plate 5.321, and the limit plate 5.321 is connected to the mounting block 5.1 through a plurality of springs 5.323;

[0041] Specifically, the axis of the insertion rod 5.31 is perpendicular to the horizontal plane, and the bottom end of the insertion rod 5.31 has three extended positions, namely a first extended position, a second extended position and a third extended position. The distance between each extended position of the insertion rod 5.31 and the bottom end of the mounting block 5.1 is as follows: the third extended position of the insertion rod 5.31 is smaller than the first extended position of the insertion rod 5.31, the first extended position of the insertion rod 5.31 is smaller than the second extended position of the insertion rod 5.31, and the first extended position also overlaps with the running track of the protruding plate unit 5.2;

[0042] In the natural state, the bottom end of the insertion rod 5.31 is in the first extended position. When the plate is transported to the top of the mounting block 5.1 by the conveyor chain system of the machine 1, the roller 5.312 contacts the bottom of the plate, and the spring 5.323 undergoes a certain degree of compression deformation, and the insertion rod 5.31 moves downward, so that the bottom end of the insertion rod 5.31 extends downward from the first extended position to the second extended position. Under the obstruction of the plate, the insertion rod 5.31 in the second extended position cannot move vertically upward on the mounting block 5.1. At this time, the telescopic unit 5.3 is in a locked state.

[0043] Furthermore, the protruding plate unit 5.2 includes a plug 5.21 fixedly connected to the side of the box body 3.11. Preferably, the angle between the length direction of the plug 5.21 and the right angle of the side of the box body 3.11 is an acute angle, and the angle between the length direction of the plug 5.21 and the right angle of the side of the box body 3.11 is preferably 45 degrees. The cross section of the plug 5.21 is rectangular, and a movable column 5.22 is adapted to be inserted into the plug 5.21. The cross section of the movable column 5.22 is a rectangular structure adapted to the plug 5.21. The angle surface formed by the length direction of the plug 5.21 and the side of the box body 3.11 is parallel to the deflection surface of the box body 3.11. The protruding plate unit 5.2 has an extended state in which one end of the movable column 5.22 extends out of the plug 5.21. The protruding plate unit 5.2 in the extended state can lock the position of the box body 3.11 in the vertical state with the telescopic unit 5.3 in the locked state;

[0044] Specifically, the movable column 5.22 is capable of axially moving within the cannula 5.21 under the action of gravity. When one end of the movable column 5.22 extends out of the cannula 5.21, the cylindrical portion of the movable column 5.22 located outside the cannula 5.21 constitutes an extension of the protruding plate unit 5.2. At this time, the protruding plate unit 5.2 is in an extended state, and the trajectory of the circular motion of the protruding portion of the protruding plate unit 5.2 is the running trajectory of the protruding plate unit 5.2.

[0045] When the support frame 5.1 is in the upright position, the bottom end of the rod 5.31 of the telescopic unit 5.3 is in the first extended position, and the bottom end of the rod 5.31 is above the extended portion of the protruding plate unit 5.2. When the plate moves to above the mounting block 5.1, the roller 5.322 contacts the bottom of the plate, and the roller 5.312 is subjected to a certain downward extrusion force. At this time, the bottom end of the rod 5.31 of the telescopic unit 5.3 is in the second extended position. At this time, the telescopic unit 5.3 has an overlapping running track with the protruding plate unit 5.2, specifically, the bottom end of the rod 5.31 contacts the top of the movable column 5.22, thereby preventing the insertion tube 5.21 from moving with the box body 3.11, thereby limiting the deflection movement of the box body 3.11. At this time, the self-locking detent assembly 5 locks the position of the box body 3.11 in the vertical state, keeping the box body 3.11 in a stable state.

[0046] As the plate continues to move, the plate is subjected to milling processing by the reverse milling cutter assembly 2 on the box body 3.11. During the movement, the plate can exert a squeezing force on the obstacles on its moving stroke. For example, during the milling process, the plate exerts a lateral squeezing force on the milling cutter of the reverse milling cutter assembly 2. The direction of the squeezing force is tangent to the annular track surface deflected by the box body 3.11. As the plate continues to move, the plate is separated from the roller 5.322. At this time, the plate no longer limits the vertical position of the insertion rod 5.31. Under the elastic force of the spring 5.323, the bottom end of the insertion rod 5.31 is extended from the second position. When the box body 3.11 is deflected, the bottom end of the plug rod 5.31 is pushed from the first extended position toward the third extended position, thereby causing the plug rod 5.31 to break away from the running trajectory of the protruding plate unit 5.2. When the protruding plate unit 5.2 is away from the telescopic unit 5.3, the plug rod 5.31 is restored to the first extended position. The bottom end of the plug rod 5.31 is a spherical end, thereby reducing the sliding resistance between the plug rod 5.31 and the movable column 5.22.

[0047] In another embodiment provided by the present invention, the drive unit 4.12 includes an extension rod 4.121 fixed to the end of the rack 4.11, the length direction of the extension rod 4.121 is in the same straight line as the length direction of the rack 4.11, and a force plate 4.122 is provided on one side of the extension rod 4.121. A side convex plate 4.128 is fixed to the side of the force plate 4.122. The installation position of the side convex plate 4.128 on the force plate 4.122 can be changed, and the side convex plate 4.128 can also be replaced by a telescopic rod with adjustable length, and a plate that can be supported by the machine 1 is fixed on the telescopic rod. The convex portion of the material is sufficient, so that the extrusion and pushing force of the plate can be finally transmitted to the force-bearing plate 4.122, and serves as the driving force for the forward movement of the force-bearing plate 4.122. Through the contact between the side convex plate 4.128 and the plate, the force-bearing plate 4.122 can receive the extrusion and pushing force of the plate during the movement process. The force-bearing plate 4.122 can receive the extrusion and pushing force of the plate during the movement process and move forward. When the force-bearing plate 4.122 moves forward, the extension rod 4.121 can provide driving force for the rack 4.11 to move forward along the length direction of the rack 4.11.

[0048] Specifically, a vertical long opening 4.123 is formed on the plate body of the force-bearing plate 4.122, and a plug post 4.124 fixed to the extension rod 4.121 is movably adapted and plugged into the long opening 4.123. The plate surface of the force-bearing plate 4.122 is parallel to the moving direction of the force-bearing plate 4.122, and the axis of the plug post 4.124 is perpendicular to the plate surface of the force-bearing plate 4.122. When the force-bearing plate 4.122 moves in the forward direction, it is connected to the extension rod 4.121 through the plug post 4.124, thereby pulling the extension rod 4.121 along the length direction of the extension rod 4.121.

[0049] Furthermore, the platform 1 is provided with a track groove 4.125 for the force plate 4.122 to be inserted and moved, and a path groove 4.126 is provided on the inner wall of the track groove 4.125. The path groove 4.126 is a quadrilateral structure as a whole, as shown in the accompanying drawings of the specification. Figure 4 As shown, a sliding post 4.127 fixed to the load-bearing plate 4.122 is slidably engaged in the path groove 4.126. When the load-bearing plate 4.122 moves forward, when the sliding post 4.127 moves within the area between points A and B of the path groove 4.126, the vertical position of the load-bearing plate 4.122 remains unchanged. When the sliding post 4.127 moves to the area between points B and C, the load-bearing plate 4.122 that is moving forward vertically retracts into the track groove 4.125. When the sliding post 4.127 reaches point C, the load-bearing plate 4.122 reaches its maximum retracted position into the track groove 4.125, and the load-bearing plate 4.122 is separated from the plate. At the same time, the box body 3.11 is also in a vertical state.

[0050] When the pushing force of the second plate causes the box body 3.11 to deflect from the vertical state to the reclining state, the rack 4.11 moves in the opposite direction along the length direction of the rack 4.11 under the meshing action of the half toothed disc 4.2, so that the rack 4.11 drives the extension rod 4.121 to move, and the load-bearing plate 4.122 moves in the opposite direction. During this process, when the slide column 4.127 moves to the area between points C and D, the load-bearing plate 4.122 is at its maximum position retracted into the track groove 4.125, and the load-bearing plate 4.122 cannot move with the plate. The moving trajectories overlap. When the slide 4.127 moves in the area between D and A, the load-bearing plate 4.122, which is moving in the opposite direction, moves vertically out of the track groove 4.125. When the slide 4.127 reaches position A, the box 3.11 reaches its maximum reclining state, and the load-bearing plate 4.122 overlaps with the moving trajectory of the plate again. When the load-bearing plate 4.122 is pushed by the second plate, the load-bearing plate 4.122 moves forward, and the slide 4.127 moves in the area between points A and B of the path groove 4.126.

[0051] It should be noted that the path grooves 4.126 and the sliding posts 4.127 can be provided in multiple groups, so as to help prevent the load-bearing plate 4.122 from always remaining in a vertical state when being loaded.

[0052] In another embodiment provided by the present invention, the above-mentioned pre-milling mechanism is provided on the plate edge banding machine, which reduces the position accuracy requirements of each reset of the reverse milling cutter component, and also integrates the moving plate on the machine table with the pre-milling mechanism. The state of the pre-milling mechanism can be automatically switched in time according to the position change of the plate, thereby improving the degree of automation of the entire plate edge banding machine.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A pre-milling mechanism, comprising a machine table (1), characterized in that: The machine platform (1) is provided with a reverse milling cutter assembly (2), and the reverse milling cutter assembly (2) is connected to the machine platform (1) via a vertical surface moving mechanism, and the vertical surface moving mechanism comprises: A bridge assembly (3) comprising a housing unit (3.1) fixed to a reverse milling cutter assembly (2), the housing unit (3.1) being matched with a bracket (3.2) fixed to a machine table (1), the reverse milling cutter assembly (2) being capable of moving in a vertical plane via the bridge assembly (3), and a trajectory line of the reverse milling cutter assembly (2) in the vertical plane having a milling position overlapping with a plate; A regulating assembly (4) comprising a driving mechanism (4.1) in transmission connection with the housing unit (3.1), wherein the driving mechanism (4.1) is capable of controlling the movement position of the housing unit (3.1), and when the milling cutter portion of the reverse milling cutter assembly (2) is located in the milling position, the driving mechanism (4.1) stops driving; The bracket (3.2) is composed of two support plates (3.21) respectively located on both sides of the box shell unit (3.1); a shaft column (3.22) fixed to the box shell unit (3.1) is rotatably mounted on the top side of each support plate (3.21); the box shell unit (3.1) can deflect with the shaft column (3.22) as the center of the circle; The regulating assembly (4) further comprises a half toothed disc (4.2) fixed to the housing unit (3.1); the driving mechanism (4.1) comprises a rack (4.11) meshed with the half toothed disc (4.2); one end of the rack (4.11) is connected to a driving unit (4.12); the driving unit (4.12) is capable of causing the rack (4.11) to move along the length direction of the rack (4.11); The housing unit (3.1) includes a housing (3.11) for accommodating a reverse milling cutter assembly (2); the outer side surface of the housing (3.11) is fixed to a shaft column (3.22); the bottom of the housing (3.11) is fixed to a half toothed disc (4.2); when the housing (3.11) is in a vertical state, the reverse milling cutter assembly (2) is in a milling position; a self-locking release assembly (5) is provided between the housing (3.11) and the machine table (1); the self-locking release assembly (5) is capable of locking the housing (3.11) in a vertical state; The self-locking release assembly (5) includes a mounting block (5.1) fixed to the machine (1), and also includes a protruding plate unit (5.2) fixed to the side of the box (3.11); a telescopic unit (5.3) is provided on the mounting block (5.1); the telescopic unit (5.3) has a second extended position that overlaps with the running track of the protruding plate unit (5.2); the telescopic unit (5.3) can lock the box (3.11) in a vertical state in the second extended position; The telescopic unit (5.3) includes an insertion rod (5.31) that is vertically movable and penetrates the top of the mounting block (5.1), the bottom end of the insertion rod (5.31) can overlap with the running track of the protruding plate unit (5.2), and a support wheel unit (5.32) is movably installed on the top of the insertion rod (5.31). When the support wheel unit (5.32) contacts the bottom of the plate conveyed by the machine (1), the telescopic unit (5.3) is in a locked state; The protruding plate unit (5.2) includes a plug (5.21) fixedly connected to the side of the box body (3.11), a movable column (5.22) is adapted to be inserted into the plug (5.21), and the protruding plate unit (5.2) has an extended state in which one end of the movable column (5.22) extends out of the plug (5.21). The protruding plate unit (5.2) in the extended state can lock the position of the box body (3.11) in the vertical state with the telescopic unit (5.3) in the fixed locking state.

2. A pre-milling mechanism according to claim 1, characterized in that: The support wheel unit (5.32) comprises a limit plate (5.321) fixed to the top of the insertion rod (5.31), a roller (5.322) is rotatably mounted on the limit plate (5.321), and the limit plate (5.321) is connected to the mounting block (5.1) via a plurality of springs (5.323).

3. A pre-milling mechanism according to claim 2, characterized in that: The bottom end of the insertion rod (5.31) is a spherical end.

4. A plate edge banding machine, characterized in that: The plate edge banding machine is provided with the pre-milling mechanism according to any one of claims 1 to 3.

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