Gluing device for coating veneer board

Abstract

The invention discloses a glue coating device for coating veneer boards, comprising a glue coating support platform, a lifting mechanism is installed on the top of the glue coating support platform, a board coating mechanism is connected to one side of the lifting mechanism, the board coating mechanism comprises a horizontal adjustment component, a board coating component is installed in the middle of one side of the horizontal adjustment component, and glue auxiliary components are respectively arranged on the bottom of both sides of the board coating mechanism. The board coating mechanism can automatically adjust the gluing method according to the thickness of the veneer board. When the lifting mechanism is running, the board coating mechanism is lifted and lowered on the top of the support platform, and the board clamper clamps the veneer board to ensure its stability. By adjusting the connecting rod on the circuit board, the first gear disk is driven to rotate to realize the switching of the gluing method. For thin veneer boards, the electric control sprayer sprays and brushes the glue, and for thick veneer boards, the glue roller brushes and brushes the glue. This design effectively avoids the bending or deformation problem of the thin veneer boards during the gluing process.

Description

Technical Field

[0001] The invention relates to the technical field of gluing veneer boards, in particular to a gluing device for coating veneer boards. Background Art

[0002] Veneer, also known as wood veneer, is a carefully processed decorative material, which is usually made of natural wood. During the production process, the wood is cut or planed into very thin layers, which are then glued to various substrates, such as plywood, medium-density fiberboard (MDF) or particleboard. The significant advantage of veneer is that it not only retains the natural beauty and touch of wood, but also reduces the dependence on a whole piece of solid wood, effectively saving wood resources. Veneer is widely used. It is not only used in furniture manufacturing, but also widely used in many fields such as interior decoration and wall decoration.

[0003] However, there are some challenges in using existing glue coating devices during the coating process of veneer boards. Currently, there are two main gluing methods for glue coating devices on the market: painting and spraying. When processing veneer boards of different thicknesses, glue coating devices using these two gluing methods often cannot flexibly switch the gluing method, which may cause thinner veneer boards to bend or deform during the gluing process. In particular, during the coating process, if the pressure is too high, thin veneer boards are prone to bending or even cracking, and the spraying method may cause uneven distribution of glue, affecting the final bonding effect. The glue coating device is also unable to accurately control the power of equipment such as hot air blowers and glue pumps through the motion trajectory of the board coating components. This type of equipment that lacks intelligent control is prone to problems such as excessive energy consumption in actual operation, and cannot synchronize the operation of hot air blowers and glue pumps, resulting in the overall equipment efficiency and consistency being affected.

[0004] In order to solve these problems, a new type of glue coating device for coating veneer boards is proposed, aiming to improve the quality and efficiency of veneer board coating processing through technical improvement. Summary of the invention

[0005] The object of the present invention is to provide a gluing device for coating veneer boards, so as to solve the problems raised in the above background technology that the existing gluing device cannot flexibly switch the gluing method when processing veneer boards of different thicknesses, easily causes the veneer boards to bend or crack, has uneven glue distribution, lacks intelligent regulation and has excessive energy consumption.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gluing device for coating veneer boards, comprising a gluing support platform, a lifting mechanism is installed on the top of the gluing support platform, a board coating mechanism is connected to one side of the lifting mechanism, the board coating mechanism comprises a horizontal adjustment component, a board coating component is installed in the middle of one side of the horizontal adjustment component, and gluing auxiliary components are also respectively arranged at the bottom of both sides of the board coating mechanism;

[0007] The plate coating assembly includes a glue pump, one side of the glue pump is connected to a support arm, the top of the glue pump is connected to a glue inlet, and the movement of the glue pump away from the glue inlet is also provided with a glue spraying component;

[0008] The glue spraying component includes a glue roller brush, both sides of which are equipped with electric control sprayers, and one end of the glue roller brush is also provided with a spraying and brushing regulator;

[0009] The spray brush regulator includes a protective shell, two groups of protective shells are respectively provided with mounting grooves in the middle of the inner side, the bottoms of the two groups of mounting grooves are provided with rod grooves, and an adjustment circuit board is also arranged between the two groups of protective shells.

[0010] Based on the above technical features, the veneer board gluing device designed by the present invention is composed of a gluing support platform, a lifting mechanism and a board coating mechanism. The board coating mechanism includes a horizontal adjustment component, a board coating component, a gluing auxiliary component and a spray brush regulator. When the lifting mechanism is started, the board coating mechanism is horizontally lifted and lowered on the top of the gluing support platform. When the board coating mechanism descends to the bottom, the board clamps at the bottom of both sides will clamp the two ends of the veneer board and fix it on the top of the gluing support platform. The linkage rod on the adjustment circuit board will contact the veneer board during the downward pressing process, driving the adjustment slider to move within the limit. The first toothed plate triggers the first contact switch through the metal tentacles, and the electric-controlled sprayer starts to spray glue on the surface of the veneer board. For thick veneer boards, the glue roller brush contacts them, and the first toothed plate triggers the second contact switch, and the glue roller brush starts to roll glue on the surface of the thick veneer board. It can be seen from the above that the veneer board gluing device designed in this scheme can automatically switch the gluing mode according to the degree, thereby avoiding the bending or deformation of the veneer board during the gluing process.

[0011] Preferably, in the above-mentioned gluing device for coating veneer boards, the adjusting circuit board includes a plate body, a limiting slide rail is installed on one side of the plate body, an adjusting slider is slidably connected to one side of the limiting slide rail, a first tooth plate is provided on one side of the adjusting slider, and a connecting rod is also installed in the middle of one side of the adjusting slider close to the first tooth plate, and the connecting rod matches the rod groove structure.

[0012] Based on the above technical features, the adjustment circuit board in this solution is connected by sliding between a limit slide rail and an adjustment slider. The limit slide rail provides a guiding function to ensure that the adjustment slider moves within a fixed track, thereby avoiding offset or shaking during the adjustment process and improving the adjustment accuracy and reliability.

[0013] Preferably, in the above-mentioned glue coating device for coating veneer boards, the side of the adjusting circuit board close to the adjusting slider is rotatably connected to the first toothed disc, the first toothed disc matches the first toothed plate structure, the first toothed disc and the first toothed plate are meshingly connected, a metal tentacle is connected to one side of the first toothed disc, a first contact switch is provided on the side of the first toothed disc close to the metal tentacle, the first contact switch is electrically connected to the electric-controlled sprayer, a second contact switch is provided on one side of the first contact switch, the second contact switch is electrically connected to the glue roller brush, the metal tentacle is in contact with the first contact switch and the second contact switch, a connecting plate is connected to the top of the adjusting circuit board, and a first compression spring is also connected between the connecting plate and the connecting rod.

[0014] Based on the above technical features, when a thin veneer board is placed on the top of the glue coating support platform, the glue roller brush cannot roll in contact with the thin veneer board, and the first toothed disc in the rotating state can come into contact with the first contact switch through the metal tentacle. Since the first contact switch and the electric-controlled sprayer are electrically connected, the electric-controlled sprayer under power-on operation can spray and apply glue to the surface of the veneer board. Similarly, when a thick veneer board is placed on the top of the glue coating support platform, the glue roller brush can roll in contact with the thick veneer board, and the first toothed disc in the rotating state can come into contact with the second contact switch through the metal tentacle. Since the second contact switch and the glue roller brush are electrically connected, the glue roller brush under power-on operation can roll and apply glue to the surface of the thick veneer board with which it is in rolling contact.

[0015] Preferably, in the above-mentioned gluing device for coating veneer boards, a rotation detection switch is installed in the middle of the support arm, both ends of the rotation detection switch are connected to a second gear disk, a guide block is installed at one end of the support arm, an adjustment screw hole is penetrated on one side of the guide block, and a sliding hole is also penetrated on the side of the guide block close to the adjustment screw hole.

[0016] Based on the above technical features, in this solution, a rotation detection switch is added to the middle part of the support arm, and a Hall effect sensor in the prior art is adopted. The sensor generates an electrical signal by detecting the stationary or rotating state of the second sprocket, and the electrical signal is transmitted to the device controller, wherein the device controller adopts a PLC or microcontroller in the prior art. When the device controller receives the signal, it first filters and amplifies the signal, and then converts the analog signal into a digital signal through an analog-to-digital converter. The device controller analyzes and judges the signal according to a preset threshold value, so as to determine whether the second sprocket is in a stationary or rotating state.

[0017] Preferably, in the above-mentioned gluing device for coating veneer boards, two groups of baffles are connected to the middle part of the gluing support platform, a drawing pipe is installed on the top of the gluing support platform, a telescopic pipe is provided at one end of the drawing pipe, a placement groove is opened between the two groups of baffles, and a top support assembly is also provided inside the placement groove.

[0018] Based on the above technical features, this solution uses a suction pipe installed on the top of the glue coating support platform to transport the recovered colloid.

[0019] Preferably, in the above-mentioned glue coating device for coating veneer boards, the top support assembly includes a metal bracket, a top support bracket is rotatably connected between one end of the metal bracket, a push plate is arranged on the top of the top support bracket, a plurality of groups of second compression springs are connected and installed between the push plate and the top support bracket, a scissors frame is also hinged between the two groups of the top support brackets, a rotating drum is installed at the end of the metal bracket away from the top support bracket, and a pressing handle is also obliquely connected to one side of the rotating drum.

[0020] Based on the above technical features, the present solution is achieved by installing a top support assembly inside the placement slot, and the top support assembly is composed of a metal bracket, a top support bracket, a top push plate, a second compression spring, a scissors frame, a rotating drum and a pressing handle. When the lifting mechanism drives the board coating mechanism to press down for adjustment, the pressing arm rods installed at both ends of the board clamp can press down the pressing handle. Under the action of the lever principle, the top support assembly can support the middle part of the veneer board placed in the placement slot. Through the top push plate and the second compression spring installed on the top of the top support bracket, the top supported veneer board can also be elastically pushed up, which can prevent the glue roller brush from scratching the surface of the thick veneer board due to hard contact with the thick veneer board during the rolling process, thereby improving the stability and safety of the veneer board gluing device for the veneer board gluing process.

[0021] Preferably, in the above-mentioned gluing device for coating veneer boards, the horizontal adjustment component includes a supporting frame, two groups of second tooth plates are installed on one side of the supporting frame, the second tooth plates match the second tooth disc structure, the second tooth plates and the second tooth disc are meshingly connected, a forward and reverse motor is installed on the outside of one end of the supporting frame, an adjusting screw is rotatably connected inside the supporting frame, the adjusting screw matches the adjusting screw hole structure, the adjusting screw and the adjusting screw hole are slidingly matched, and a sliding rod is also provided on the side of the supporting frame close to the adjusting screw, the sliding rod matches the sliding hole structure, and the sliding rod and the sliding hole are slidingly matched.

[0022] Based on the above technical features, the horizontal adjustment component in the present solution realizes precise horizontal adjustment of the veneer board gluing device through components such as the supporting frame, the second tooth plate, the second tooth disc, the forward and reverse motors, the adjusting screw, the adjusting screw hole, the sliding rod and the sliding hole. The meshing connection between the second tooth plate and the second tooth disc ensures the stability of the horizontal movement, and the sliding cooperation between the adjusting screw and the adjusting screw hole provides a delicate adjustment function. The cooperation between the sliding rod and the sliding hole further enhances the stability, and the forward and reverse motors provide the necessary power drive. These designs ensure that the gluing device can be flexibly adjusted to meet the gluing requirements of the veneer board.

[0023] Preferably, in the above-mentioned gluing device for coating veneer boards, the gluing auxiliary component includes a hot air blower, and the hot air blower, glue pump and rotation detection switch are electrically connected. Board clamps are installed at the bottom of two groups of hot air blowers, and downward pressure arms are installed at both ends of the two groups of board clamps. A bayonet is also provided at the bottom of the downward pressure arm, and the bayonet matches the downward pressure handle structure.

[0024] Based on the above technical features, when the plate coating component is horizontally moved and adjusted on one side of the horizontal adjustment component, since the hot blower, the glue pump and the rotation detection switch are electrically connected, the hot blower and the glue pump can be controlled to be powered on. The glue pump in the powered-on state can re-transport the colloid recovered from the reflux tank to the glue roller brush and the electric-controlled sprayer for gluing, while the hot blower in the powered-on state can dry and heat the colloid coated on the surface of the veneer board, thereby improving the work efficiency of the equipment in the gluing treatment of the veneer board.

[0025] Preferably, in the above-mentioned gluing device for coating veneer boards, the inner sides of the two groups of baffles are rotatably connected to multiple groups of rollers, both sides of the two groups of baffles are penetrated by barrel grooves, the barrel grooves match the rotating drum structure, the barrel grooves and the rotating drum are rotatably matched, two groups of first baffle rods are installed in the middle of the inner sides of the two groups of baffles, and second baffle rods are respectively arranged at the bottom of the two groups of the first baffle rods.

[0026] Based on the above technical features, this solution can limit the top support assembly in the expanded or retracted state by installing a first gear rod and a second gear rod on the inner sides of the two sets of baffles.

[0027] Preferably, in the above-mentioned gluing device for coating veneer boards, return plates are obliquely arranged on both sides of the bottom of the placement groove, a return groove is opened between the two groups of return plates, the extraction port of the extraction pipe is located on both sides of the bottom of the return groove, and retaining rings are installed around the opening of the return groove, and an impurity filter plate is also mounted in the middle of the retaining ring.

[0028] Based on the above technical features, this solution can set up an impurity filter plate inside the reflux groove by installing a retaining ring around the opening of the reflux groove. The impurity filter plate can filter out impurities in the collected refluxed colloid, so that the glue coating device can recycle and utilize the colloid.

[0029] The present invention provides a glue coating device for coating veneer boards, which has the following technical points and beneficial effects:

[0030] The veneer board gluing device designed in the present invention consists of a gluing support platform, a lifting mechanism and a board coating mechanism. The board coating mechanism can automatically adjust the gluing method according to the thickness of the veneer board. When the lifting mechanism is running, the board coating mechanism is lifted and lowered on the top of the support platform. The board clamp clamps the veneer board to ensure its stability. By adjusting the connecting rod on the circuit board, the first gear plate is driven to rotate to achieve the switching of the gluing method. For thin veneer boards, the electric sprayer is used to spray glue, and for thick veneer boards, the glue roller brush is used to roll glue. This design effectively avoids the problem of bending or deformation of thin veneer boards during the gluing process.

[0031] The present invention installs a forward and reverse motor at one end of the support frame. When the forward and reverse motor is powered on, it can drive the plate coating assembly to move horizontally along one side of the horizontal adjustment assembly. Since the second tooth plate and the second tooth disc are meshingly connected, the horizontally moving plate coating assembly will cause the rotation detection switch installed in the middle of the support arm to rotate. The rotation detection switch adopts the Hall effect sensor in the prior art, and evaluates and judges the movement of the plate coating assembly by detecting the static or rotating dynamics of the second tooth disc. When the plate coating assembly is adjusted to move horizontally, since the hot blower and the glue pump are electrically connected to the Hall effect sensor, after the hot blower and the glue pump are powered on, the glue pump can re-convey the colloid recovered in the reflux tank to the glue roller brush and the electric control paint sprayer for gluing, and the powered hot blower can heat and dry the colloid coated on the surface of the veneer board, thereby improving the working efficiency of the equipment.

[0032] The present invention also installs a top support assembly inside the placement slot, and the top support assembly is composed of a metal bracket, a top support bracket, a push plate, a second compression spring, a scissors frame, a rotating cylinder and a pressing handle. When the lifting and adjusting mechanism drives the board coating mechanism to press down and adjust, the pressing arm rods at both ends of the board clamp will exert pressure on the pressing handle. Under the action of the lever principle, the top support assembly provides support for the middle part of the veneer board in the placement slot. At the same time, through the push plate and the second compression spring installed on the top of the top support bracket, elastic support can also be provided for the bottom of the veneer board, thereby preventing the glue roller brush from scratching the board surface due to hard contact during the rolling process, thereby improving the stability and safety of the glue coating device.

[0033] The present invention installs a first baffle rod and a second baffle rod on the inner sides of the two groups of baffles to limit the top support assembly in the expanded or retracted state, thereby preventing the veneer board from being lifted up due to the support height exceeding the roller during the expansion adjustment process of the top support assembly, or falling into the impurity filter plate during the reset adjustment process, thereby improving the stability of the top support assembly for repeated use. At the same time, by installing a retaining ring around the opening of the reflux groove, the impurity filter plate is set inside the reflux groove, and the impurity filter plate is installed in the reflux groove, impurities such as wood chips in the collected colloid can be filtered, which is convenient for the glue coating device to recycle the colloid. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the plate coating mechanism in the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the plate coating assembly in the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the glue spraying component in the present invention;

[0038] Figure 5 It is a schematic diagram of the disassembly of the spray brushing regulator in the present invention;

[0039] Figure 6 It is a schematic diagram of the structure of the regulating circuit board in the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the glue coating support platform in the present invention;

[0041] Figure 8 It is a schematic diagram of the structure of the top support assembly in the present invention;

[0042] Fig. 9 It is a schematic diagram of the structure of the level adjustment component in the present invention;

[0043] Fig.10It is a schematic diagram of the structure of the gluing auxiliary component in the present invention;

[0044] Fig.11 It is a schematic diagram of the placement slot structure in the present invention.

[0045] In the figure:

[0046] 1. Glue coating support table;

[0047] 11. baffle; 111. roller; 112. barrel groove; 113. first baffle rod; 114. second baffle rod;

[0048] 12. Extraction pipe fittings; 13. Telescopic pipe fittings;

[0049] 14. Placement slot; 141. Reflux plate; 142. Reflux slot; 143. Retaining ring; 144. Impurity filter plate;

[0050] 15. Top support assembly; 151. Metal bracket; 152. Top support bracket; 153. Push plate; 154. Second compression spring; 155. Scissor frame; 156. Rotating drum; 157. Press handle;

[0051] 2. Lifting mechanism; 3. Plate coating mechanism;

[0052] 4. Horizontal adjustment assembly; 41. Support frame; 42. Second tooth plate; 43. Forward and reverse motor; 44. Adjustment screw; 45. Sliding rod;

[0053] 5. Plate coating components; 51. Glue pump;

[0054] 52, support arm; 521, rotation detection switch; 522, second toothed disc; 523, guide block; 524, adjustment screw hole; 525, sliding hole;

[0055] 53. Rubber hose inlet;

[0056] 54. Glue spraying parts; 541. Glue roller brush; 542. Electric control sprayer;

[0057] 6. Gluing auxiliary assembly; 61. Hot air blower; 62. Plate clamp; 63. Pressing arm; 64. Bayonet;

[0058] 7. Spray brush controller; 71. Protective housing; 72. Mounting slot; 73. Rod slot;

[0059] 74, adjusting circuit board; 741, board body; 7411, first toothed disc; 7412, metal tentacle; 7413, first contact switch; 7414, second contact switch; 7415, connecting plate; 7416, first compression spring; 742, limit slide rail; 743, adjusting slider;

[0060] 744. First tooth plate; 745. Connecting rod. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] See also Figures 1 to 6 The present invention provides a technical solution of a glue coating device for coating veneer boards:

[0063] The glue coating support platform 1 includes a lifting mechanism 2 installed on the top of the glue coating support platform 1, a plate coating mechanism 3 is connected to one side of the lifting mechanism 2, the plate coating mechanism 3 includes a horizontal adjustment component 4, a plate coating component 5 is installed in the middle of one side of the horizontal adjustment component 4, and glue auxiliary components 6 are respectively arranged on the bottom of both sides of the plate coating mechanism 3. The plate coating component 5 includes a glue pump 51, a support arm 52 is connected to one side of the glue pump 51, a glue inlet pipe 53 is connected to the top of the glue pump 51, and the glue pump 51 is remotely connected to the support arm 52. A glue spraying component 54 is also provided away from the glue inlet port 53, and the glue spraying component 54 includes a glue roller brush 541, and electric-controlled sprayers 542 are installed on both sides of the glue roller brush 541. A spray brush regulator 7 is also provided at one end of the glue roller brush 541, and the spray brush regulator 7 includes a protective shell 71. Two groups of protective shells 71 are respectively provided with mounting grooves 72 in the middle of the inner sides, and the bottoms of the two groups of mounting grooves 72 are provided with rod grooves 73. An adjustment circuit board 74 is also provided between the two groups of protective shells 71.

[0064] The adjusting circuit board 74 includes a plate body 741, one side of the plate body 741 is installed with a limiting slide rail 742, one side of the limiting slide rail 742 is slidably connected with an adjusting slider 743, one side of the adjusting slider 743 is provided with a first tooth plate 744, and a connecting rod 745 is also installed in the middle of one side of the adjusting slider 743 close to the first tooth plate 744, and the connecting rod 745 matches the structure of the rod groove 73. The adjusting circuit board 74 is slidably connected with the adjusting slider 743 through the limiting slide rail 742, and the limiting slide rail 742 provides a guiding function to ensure that the adjusting slider 743 moves within a fixed track, thereby avoiding deviation or shaking during the adjustment process, thereby improving the accuracy and reliability of the adjustment.

[0065] A first toothed disc 7411 is rotatably connected to one side of the adjusting circuit board 74 close to the adjusting slider 743. The first toothed disc 7411 matches the first toothed plate 744 in structure. The first toothed disc 7411 and the first toothed plate 744 are meshingly connected. A metal tentacle 7412 is connected to one side of the first toothed disc 7411. A first contact switch 7413 is provided on the side of the first toothed disc 7411 close to the metal tentacle 7412. The first contact switch 7413 is electrically connected to the electric-controlled sprayer 542. A second contact switch 7414 is provided on one side of the first contact switch 7413. The second contact switch 7414 is electrically connected to the glue roller brush 541. The metal tentacle 7412 is in contact with the first contact switch 7413 and the second contact switch 7414. A connecting plate 7415 is connected to the top of the adjusting circuit board 74. A first compression spring 7416 is also connected between the connecting plate 7415 and the linkage rod 745.

[0066] During operation, when a thin veneer board is placed on the top of the glue coating support platform 1, the glue coating roller brush 541 cannot make rolling contact with the thin veneer board, and the first toothed disc 7411 in the rotating state can make contact with the first contact switch 7413 through the metal tentacle 7412. Since the first contact switch 7413 and the electric-controlled sprayer 542 are electrically connected, the electric-controlled sprayer 542 under power-on operation can spray and apply glue to the surface of the veneer board. Similarly, when a thick veneer board is placed on the top of the glue coating support platform 1, the glue coating roller brush 541 can make rolling contact with the thick veneer board, and the first toothed disc 7411 in the rotating state can make contact with the second contact switch 7414 through the metal tentacle 7412. Since the second contact switch 7414 and the glue coating roller brush 541 are electrically connected, the glue coating roller brush 541 under power-on operation can roll and apply glue to the surface of the thick veneer board in rolling contact.

[0067] As an embodiment of the present invention, Figures 3 to 8As shown, a rotation detection switch 521 is installed in the middle of the support arm 52, and both ends of the rotation detection switch 521 are connected to the second toothed disc 522. A guide block 523 is installed at one end of the support arm 52, and an adjusting screw hole 524 is penetrated on one side of the guide block 523, and a sliding hole 525 is penetrated on the side of the guide block 523 close to the adjusting screw hole 524. Through the rotation detection switch 521 installed in the middle of the support arm 52, a Hall effect sensor in the prior art is adopted, and the Hall effect sensor generates an electrical signal by detecting the stillness or rotation of the second toothed disc 522. The electrical signal is transmitted to the device controller, wherein the device controller adopts the PLC or microcontroller in the prior art. When the device controller receives the signal, it first performs signal filtering and amplification processing, and then converts the analog signal into a digital signal through an analog-to-digital converter. The device controller analyzes and judges the signal according to a preset threshold value, so as to determine whether the second toothed disc 522 is in a stationary or rotating state.

[0068] Two groups of baffles 11 are connected to the middle part of the glue coating support platform 1, and a material extraction pipe 12 is installed on the top of the glue coating support platform 1. A telescopic pipe 13 is arranged at one end of the material extraction pipe 12. A placement groove 14 is opened between the two groups of baffles 11, and a top support assembly 15 is also arranged inside the placement groove 14. The material extraction pipe 12 installed on the top of the glue coating support platform 1 is used for transporting the recovered colloid.

[0069] The top support assembly 15 includes a metal bracket 151, one end of which is rotatably connected to a top support bracket 152, a push plate 153 is provided on the top of the top support bracket 152, a plurality of groups of second compression springs 154 are connected and installed between the push plate 153 and the top support bracket 152, a scissor frame 155 is also hinged between the two groups of top support brackets 152, a rotating drum 156 is installed at one end of the metal bracket 151 away from the top support bracket 152, and a pressing handle 157 is also obliquely connected to one side of the rotating drum 156.

[0070] During operation, through the top support assembly 15 installed inside the placement groove 14, the top support assembly 15 consists of a metal bracket 151, a top support bracket 152, a push plate 153, a second compression spring 154, a scissor frame 155, a rotating drum 156 and a pressing handle 157. When the lifting mechanism 2 drives the board coating mechanism 3 to press down for adjustment, the pressing arm rods 63 installed at both ends of the board clamp 62 can press down the pressing handle 157. Under the action of the lever principle, the top support assembly 15 can support the middle part of the veneer board placed in the placement groove 14. Through the push plate 153 and the second compression spring 154 installed on the top of the top support bracket 152, the top supported veneer board can also be elastically pushed up, which can prevent the glue roller 541 from scratching the surface of the thick veneer board due to hard contact with the thick veneer board during the rolling process, thereby improving the stability and safety of the veneer board gluing device for the veneer board gluing process.

[0071] As an embodiment of the present invention, Figures 3 to 11 As shown, the horizontal adjustment component 4 includes a support frame 41, and two groups of second tooth plates 42 are installed on one side of the support frame 41. The second tooth plates 42 match the second tooth disc 522 structure, and the second tooth plates 42 and the second tooth disc 522 are meshed. A forward and reverse motor 43 is installed on the outside of one end of the support frame 41, and an adjusting screw rod 44 is rotatably connected inside the support frame 41. The adjusting screw rod 44 matches the adjusting screw hole 524 structure, and the adjusting screw rod 44 and the adjusting screw hole 524 are slidably matched. A sliding rod 45 is also provided on one side of the support frame 41 close to the adjusting screw 44. The sliding rod 45 matches the sliding hole 525 structure, and the sliding rod 45 and the sliding hole 525 are slidably matched. The horizontal adjustment component 4 realizes precise horizontal adjustment of the veneer board gluing device through the supporting frame 41, the second tooth plate 42, the second tooth disc 522, the forward and reverse motor 43, the adjusting screw 44, the adjusting screw hole 524, the sliding rod 45 and the sliding hole 525. The meshing connection between the second tooth plate 42 and the second tooth disc 522 ensures the stability of the horizontal movement, and the sliding cooperation between the adjusting screw 44 and the adjusting screw hole 524 provides a delicate adjustment function. The cooperation between the sliding rod 45 and the sliding hole 525 further enhances the stability. The forward and reverse motor 43 provides the necessary power drive. These designs ensure that the gluing device can be flexibly adjusted to meet the gluing requirements of the veneer board.

[0072] The gluing auxiliary component 6 includes a hot air blower 61, and the hot air blower 61, the glue pump 51 and the rotation detection switch 521 are electrically connected. The bottom of the two groups of hot air blowers 61 are installed with plate clamps 62, and both ends of the two groups of plate clamps 62 are installed with downward pressing arms 63. The bottom of the downward pressing arm 63 is also provided with a bayonet 64, and the bayonet 64 matches the structure of the downward pressing handle 157.

[0073] The inner sides of the two groups of baffles 11 are rotatably connected with multiple groups of rollers 111. Both sides of the two groups of baffles 11 are penetrated with a cylinder groove 112, and the cylinder groove 112 matches the structure of the rotating cylinder 156. The cylinder groove 112 and the rotating cylinder 156 are rotatably matched. Two groups of first baffles 113 are installed in the middle of the inner sides of the two groups of baffles 11. The bottoms of the two groups of first baffles 113 are also provided with second baffles 114 respectively. The bottom sides of the placement groove 14 are inclinedly provided with return plates 141. A return plate 141 is opened between the two groups of return plates 141. Groove 142, the extraction port of the extraction pipe 12 is located on both sides of the bottom of the reflux groove 142, and a retaining ring 143 is installed around the opening of the reflux groove 142. An impurity filter plate 144 is also set up in the middle of the retaining ring 143. By installing the retaining ring 143 around the opening of the reflux groove 142, the impurity filter plate 144 can be set up inside the reflux groove 142. The impurity filter plate 144 can filter the impurities of the collected refluxed colloid, so that the glue coating device can recycle and utilize the colloid.

[0074] During operation, when the plate coating component 5 is horizontally moved and adjusted on one side of the horizontal adjustment component 4, since the hot blower 61, the glue pump 51 and the rotation detection switch 521 are electrically connected, the hot blower 61 and the glue pump 51 can be controlled to be powered on. The glue pump 51 in the powered-on state can re-transport the colloid recovered from the reflux groove 142 to the glue roller 541 and the electric-controlled sprayer 542 for gluing, while the hot blower 61 in the powered-on state can dry and heat the colloid coated on the surface of the veneer board, thereby improving the working efficiency of the equipment in gluing the veneer board.

[0075] Working principle: The veneer board gluing device designed by the present invention is composed of a gluing support platform 1, a lifting mechanism 2 and a board coating mechanism 3, wherein the board coating mechanism 3 includes a horizontal adjustment component 4, a board coating component 5, a gluing auxiliary component 6 and a spray brush regulator 7. When the lifting mechanism 2 is turned on and running, it can drive the board coating mechanism 3 installed on one side to perform horizontal lifting and lowering adjustment on the top of the gluing support platform 1. When the board coating mechanism 3 is adjusted to the bottom of the horizontal drop, the board clamps 62 installed at the bottom of both sides of the board coating mechanism 3 can be used to adjust the two ends of the veneer board placed on the roller 111. The clamping treatment can limit the veneer board to be processed on the top of the glue coating support platform 1. At the same time, during the downward adjustment process of the linkage rod 745 installed on the adjustment circuit board 74, the end of the linkage rod 745 can come into contact with the veneer board placed on the top of the glue coating support platform 1, and can drive the adjustment slider 743 to slide upward on the limiting slide rail 742. Through the first tooth plate 744 installed on one side of the adjustment slider 743, the first tooth plate 744 and the first tooth disc 7411 are meshed and connected, and the upward sliding adjustment slider 743 can also drive the first tooth disc 7411 to rotate;

[0076] When a veneer board is placed on the top of the glue-spreading support platform 1, the glue-spreading roller brush 541 cannot make rolling contact with the veneer board, and the first toothed disc 7411 in the rotating state can make contact with the first contact switch 7413 through the metal tentacle 7412. Because the first contact switch 7413 is electrically connected to the electric-controlled sprayer 542, the electric-controlled sprayer 542 in power-on operation can spray glue on the surface of the veneer board. Similarly, when a thick veneer board is placed on the top of the glue-spreading support platform 1, the glue-spreading roller brush 541 can make rolling contact with the thick veneer board, and the rotating first toothed disc 7411 can make contact with the first contact switch 7413. The first toothed disc 7411 in the state can come into contact with the second contact switch 7414 through the metal tentacle 7412. Since the second contact switch 7414 is electrically connected to the glue roller brush 541, the glue roller brush 541 under power-on operation can perform a rolling and brushing gluing process on the thick veneer board surface in rolling contact. It can be seen from the above that the veneer board gluing device designed in this scheme can flexibly switch the glue roller brush 541 and the gluing method of the glue roller brush 541 according to the thickness specification of the veneer board, which can effectively solve the problem of bending or deformation of thinner veneer boards in the prior art during the gluing process;

[0077] It should be emphasized that the present solution flexibly controls the power supply status of the glue roller brush 541 and the electric-controlled sprayer 542 through the contact between the metal tentacle 7412 and the first contact switch 7413 and the second contact switch 7414. When the linkage rod 745 is pressed down on the surface of a thinner wooden board, the surface of the thinner wooden board can push the pressed linkage rod 745 upward. Since the height of the thin board pushing the linkage rod 745 upward is limited, the metal tentacle 7412 can only contact the first contact switch 7413, but cannot contact the second contact switch 7414. When the metal tentacle 7412 contacts the first contact switch 7413, it can control the electric-controlled sprayer 542 to turn on. The turned-on electric-controlled sprayer 542 can spray glue on the surface of the thinner wooden board. When the connecting rod 745 is pressed down on the surface of the thicker wooden board, the surface of the thinner wooden board can also push the pressing connecting rod 745 upward. Since the thick board can lift the pushing connecting rod 745 to a certain height, the metal tentacle 7412 can not only contact the first contact switch 7413, but also contact the second contact switch 7414. When the metal tentacle 7412 contacts the first contact switch 7413, it can control the electric-controlled sprayer 542 to turn on. The turned-on electric-controlled sprayer 542 can spray glue on the surface of the thick board. When the metal tentacle 7412 contacts the second contact switch 7414, it can control the glue roller brush 541 to turn on. The turned-on glue roller brush 541 can roll and brush the glue sprayed on the surface of the thick board.

[0078] In summary, when gluing a thicker wooden board, the device can perform spray gluing and spray gluing treatment on the surface of the thicker wooden board, while when gluing a thinner wooden board, it can only perform spray gluing treatment on the surface of the thinner wooden board, and cannot perform spray gluing treatment on it. This makes the device have obvious distinction in the gluing methods of the two types of wooden boards, and can flexibly switch the glue roller brush 541 and the electric control sprayer 542 according to the thickness of the wooden board.

[0079] By installing a top support assembly 15 inside the placement slot 14, the top support assembly 15 is composed of a metal bracket 151, a top support bracket 152, a push plate 153, a second compression spring 154, a scissor frame 155, a rotating drum 156 and a pressing handle 157. When the lifting mechanism 2 drives the plate coating mechanism 3 to press down and adjust, the pressing arm rods 63 installed at both ends of the plate clamp 62 can press down the pressing handle 157. Under the action of the lever principle, the top support assembly 15 can support the middle part of the veneer board placed in the placement slot 14. By installing the push plate 153 and the second compression spring 154 on the top of the top support bracket 152, the top supported veneer board can also be elastically pushed up, which can prevent the glue roller 541 from scratching the surface of the thick veneer board due to hard contact with the thick veneer board during the rolling process, thereby improving the stability and safety of the veneer board gluing device for the veneer board gluing process.

[0080] By installing a retaining ring 143 around the opening of the reflux groove 142, the impurity filter plate 144 can be set up inside the reflux groove 142. The impurity filter plate 144 can also filter the impurities of the collected refluxed colloid, so as to facilitate the recycling and utilization of the colloid by the glue coating device. When the forward and reverse motor 43 installed at one end of the support frame 41 is powered on, it can drive the plate coating component 5 to move horizontally on one side of the horizontal adjustment component 4. The structural design of the meshing connection between the second tooth plate 42 and the second tooth plate 522 can drive the rotation detection switch 521 installed in the middle of the support arm 52 to rotate. The rotation detection switch 521 adopts a Hall effect sensor in the prior art. The Hall effect sensor is connected to the second tooth plate 42 and the second tooth plate 522. The movement of the plate coating component 5 is evaluated and judged by detecting the static or rotating dynamics of the second toothed disc 522. When the plate coating component 5 is horizontally moved and adjusted on one side of the horizontal adjustment component 4, since the hot blower 61, the glue pump 51 and the rotation detection switch 521 are electrically connected, the hot blower 61 and the glue pump 51 can be controlled to be powered on. The glue pump 51 in the powered-on state can re-transport the colloid recovered from the reflux groove 142 to the glue roller 541 and the electric-controlled sprayer 542 for gluing, while the hot blower 61 in the powered-on state can dry and heat the colloid coated on the surface of the veneer board, thereby improving the working efficiency of the equipment in gluing the veneer board.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glue coating device for coating veneer boards, comprising a glue coating support table (1), characterized in that: A lifting mechanism (2) is installed on the top of the glue coating support platform (1); a plate coating mechanism (3) is connected to one side of the lifting mechanism (2); the plate coating mechanism (3) comprises a horizontal adjustment component (4); a plate coating component (5) is installed in the middle of one side of the horizontal adjustment component (4); and glue coating auxiliary components (6) are also respectively provided at the bottom of both sides of the plate coating mechanism (3); The plate coating assembly (5) comprises a glue pump (51), one side of the glue pump (51) is connected to a support arm (52), the top of the glue pump (51) is connected to a glue inlet pipe opening (53), and a glue spraying component (54) is also provided when the glue pump (51) moves away from the glue inlet pipe opening (53); The glue spraying component (54) comprises a glue roller brush (541), both sides of which are provided with electric-controlled sprayers (542), and one end of the glue roller brush (541) is also provided with a spraying regulator (7); The spray brush regulator (7) comprises a protective shell (71), two sets of the protective shells (71) are respectively provided with mounting grooves (72) in the middle of the inner sides, the bottoms of the two sets of the mounting grooves (72) are both provided with rod grooves (73), and an adjustment circuit board (74) is also provided between the two sets of the protective shells (71); The regulating circuit board (74) comprises a plate body (741), a limiting slide rail (742) is installed on one side of the plate body (741), an regulating slider (743) is slidably connected to one side of the limiting slide rail (742), a first tooth plate (744) is provided on one side of the regulating slider (743), a connecting rod (745) is also installed in the middle of one side of the regulating slider (743) close to the first tooth plate (744), and the connecting rod (745) matches the structure of the rod slot (73); The regulating circuit board (74) is rotatably connected to a first toothed disc (7411) on one side close to the regulating slider (743); the first toothed disc (7411) and the first toothed plate (744) are structurally matched; the first toothed disc (7411) and the first toothed plate (744) are meshingly connected; a metal tentacle (7412) is connected to one side of the first toothed disc (7411); a first contact switch (7413) is provided on the side of the first toothed disc (7411) close to the metal tentacle (7412); the first contact switch (7413) is connected to the electric-controlled sprayer. (542), a second contact switch (7414) is provided on one side of the first contact switch (7413), the second contact switch (7414) and the glue roller brush (541) are electrically connected, the metal tentacle (7412) and the first contact switch (7413) and the second contact switch (7414) are in contact and cooperation, the top of the regulating circuit board (74) is connected to a connecting plate (7415), and a first compression spring (7416) is further connected between the connecting plate (7415) and the linkage rod (745); A rotation detection switch (521) is installed in the middle of the support arm (52), and both ends of the rotation detection switch (521) are connected to a second toothed disc (522). A guide block (523) is installed at one end of the support arm (52), and an adjustment screw hole (524) is provided through one side of the guide block (523), and a sliding hole (525) is also provided through one side of the guide block (523) close to the adjustment screw hole (524); Two groups of baffles (11) are connected to the middle of the glue coating support platform (1), a material extraction pipe (12) is installed on the top of the glue coating support platform (1), a telescopic pipe (13) is arranged at one end of the material extraction pipe (12), a placement groove (14) is opened between the two groups of baffles (11), and a top support assembly (15) is also arranged inside the placement groove (14); The supporting assembly (15) comprises a metal bracket (151), one end of which is rotatably connected to a supporting bracket (152), a pushing plate (153) is arranged on the top of the supporting bracket (152), a plurality of groups of second compression springs (154) are connected and installed between the pushing plate (153) and the supporting bracket (152), a scissor frame (155) is hingedly connected between two groups of supporting brackets (152), a rotating drum (156) is installed on one end of the metal bracket (151) away from the supporting bracket (152), and a pressing handle (157) is also obliquely connected to one side of the rotating drum (156).

2. The gluing device for coating veneer boards according to claim 1, characterized in that: The horizontal adjustment component (4) comprises a support frame (41), two groups of second tooth plates (42) are installed on one side of the support frame (41), the second tooth plates (42) match the second tooth disc (522) in structure, and the second tooth plates (42) and the second tooth disc (522) are meshingly connected, a forward and reverse motor (43) is installed on the outside of one end of the support frame (41), an adjusting screw rod (44) is rotatably connected inside the support frame (41), the adjusting screw rod (44) matches the adjusting screw hole (524) in structure, and the adjusting screw rod (44) and the adjusting screw hole (524) are in sliding fit, and a sliding rod (45) is further provided on a side of the support frame (41) close to the adjusting screw rod (44), the sliding rod (45) matches the sliding hole (525) in structure, and the sliding rod (45) and the sliding hole (525) are in sliding fit.

3. The gluing device for coating veneer boards according to claim 2, characterized in that: The gluing auxiliary component (6) comprises a hot air blower (61), and the hot air blower (61), the glue pump (51) and the rotation detection switch (521) are electrically connected. The bottom of the two groups of hot air blowers (61) are both installed with a plate clamp (62), and both ends of the two groups of plate clamps (62) are both installed with a downward pressing arm (63). The bottom of the downward pressing arm (63) is also provided with a bayonet (64), and the bayonet (64) matches the structure of the downward pressing handle (157).

4. The gluing device for coating veneer boards according to claim 1, characterized in that: The inner sides of the two groups of baffles (11) are rotatably connected to multiple groups of rollers (111), and both sides of the two groups of baffles (11) are penetrated by a barrel groove (112), the barrel groove (112) matches the structure of the rotating drum (156), and the barrel groove (112) and the rotating drum (156) are rotatably matched. Two groups of first baffle rods (113) are installed in the middle of the inner sides of the two groups of baffles (11), and the bottoms of the two groups of the first baffle rods (113) are also provided with second baffle rods (114).

5. The gluing device for coating veneer boards according to claim 4, characterized in that: Both sides of the bottom of the placement groove (14) are provided with reflux plates (141) at an angle, a reflux groove (142) is provided between two groups of the reflux plates (141), the extraction ports of the extraction pipe (12) are located on both sides of the bottom of the reflux groove (142), retaining rings (143) are installed around the opening of the reflux groove (142), and an impurity filter disc (144) is also provided in the middle of the retaining ring (143).

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