Paint spraying device for wood furniture production and paint spraying method thereof

Abstract

The invention relates to the technical field of paint spraying devices, and discloses a paint spraying device for wood furniture production and a paint spraying method.The paint spraying device comprises a bottom table, a clamp assembly, a support, a control assembly and a paint spraying assembly, the clamp assembly is movably arranged on the bottom table and comprises a clamp base, and a positioning piece used for fixing a plate is further arranged in the clamp base; the clamp base moves to the two ends of the bottom table and is used for driving the positioning piece to relieve fixing of the plate. The paint spraying assembly comprises a paint storage tank and a spray head part installed on the support, a driving assembly is arranged in the bottom table, the clamp base moves to drive the driving assembly to drive the paint storage tank to shake, a stirring assembly is further arranged in the paint storage tank, and the paint storage tank shakes to drive the stirring assembly to stir paint in the paint storage tank. According to the paint spraying device, the clamp assembly can drive the paint storage tank to shake in the moving process, meanwhile, the stirring assembly stirs paint in the paint storage tank, paint bonding in the paint storage tank can be avoided, and the paint sprayed by the paint spraying head is more uniform.

Description

Technical Field

[0001] The present application relates to the technical field of paint spraying devices, and in particular to a paint spraying device and a paint spraying method for wood furniture production. Background Art

[0002] Wood processing uses wood as raw material and utilizes mechanical or chemical methods to ensure that the processed products still maintain the basic properties of wood. Among them, wood is most widely used in the field of furniture. In the processing of wood furniture, boards are usually used for assembling furniture. In order to increase the aesthetics of the wood surface and improve the protective performance of furniture wood, the surface of the board needs to be painted.

[0003] The existing painting method is mainly manual assisted painting, which uses a paint spray gun to spray paint on one surface of the furniture wood in turn. This painting method is prone to uneven painting and has low painting efficiency. There is also a method of conveying the board through the painting equipment through a conveyor belt for mechanical painting. Whether it is manual assisted painting or mechanical painting, it includes a paint storage tank for storing paint. However, the existing paint storage tanks lack effective stirring, which can easily cause the paint in the paint storage tank to stick during use, resulting in uneven paint spraying on the board, so there is room for improvement. Summary of the invention

[0004] The present application provides a paint spraying device and a paint spraying method for wood furniture production, so as to at least solve the above technical problems existing in the prior art.

[0005] A paint spraying device for wood furniture production includes a base, a fixture assembly, a bracket, a control assembly and a paint spraying assembly. The fixture assembly is movably arranged on the base, and the control assembly is used to control the paint spraying assembly to perform a paint spraying operation; wherein, The clamp assembly includes a clamp seat for carrying the plate, and a positioning piece for fixing the plate is also arranged in the clamp seat. The clamp seat moves to the two ends of the base to drive the positioning piece to release the fixing of the plate; The paint spraying assembly includes a paint storage tank and a spray head mounted on a bracket. A driving assembly is provided in the base. The movement of the fixture seat is used to drive the driving assembly to drive the paint storage tank to shake. A stirring assembly is also provided in the paint storage tank. The shaking of the paint storage tank is used to drive the stirring assembly to stir the paint in the paint storage tank. The control component includes a first control unit and a second control unit arranged on both sides of the base and a first trigger unit and a second trigger unit arranged at both ends of the base. When the clamp assembly moves to one end of the base, the first trigger unit is triggered to enable the first control unit to work and the second control unit stops. When the clamp assembly moves to the other end of the base, the second trigger unit is triggered to enable the second control unit to work and the first control unit stops.

[0006] Furthermore, installation cavities are provided at both ends of the fixture seat, a sliding groove is provided at the upper end of the installation cavity along the length direction of the fixture seat, and an assembly cavity connected to the installation cavity is provided in the fixture seat; The positioning member includes a positioning block slidably arranged in the installation cavity, a positioning plate extending through the sliding groove is arranged on the positioning block, a positioning column which can be inserted into the corresponding end surface of the plate is arranged on the positioning plate, and a driving member for driving the positioning blocks to approach each other is arranged in the assembly cavity.

[0007] Furthermore, the driving member includes a rotating shaft rotatably arranged in the middle of the assembly cavity, a driving plate is sleeved on the rotating shaft, and both ends of the driving plate are respectively provided with hinged rods with one end hingedly connected to the driving plate, and the other end of the hinged rod is hingedly connected to the corresponding positioning block, and a tension spring for pulling the positioning blocks closer to each other is provided in the assembly cavity, a first gear is sleeved at the lower end of the rotating shaft, and a first rack is slidably provided in the assembly cavity and on both sides of the first gear, and one end of the first rack passes through the corresponding installation cavity and extends out.

[0008] Furthermore, a slide groove is provided on the upper side of the base along its width direction, and a mounting seat for mounting the paint storage tank is provided on the base and located at the slide groove, and a mounting column is provided on the mounting seat and extends into the base through the slide groove; The driving assembly includes a mounting shaft rotatably arranged on the upper end surface of the base, the lower end of the mounting shaft extends into the base, the upper end of the mounting shaft is provided with a second gear, the side wall of the fixture seat is provided with a second rack along its length direction and matched with the corresponding second gear, the lower end of the mounting shaft is provided with a turntable, the lower side surface of the turntable is hingedly connected to a traction plate at the edge, and one end of the traction plate is hingedly connected to the mounting column.

[0009] Furthermore, the stirring assembly includes a stirring shaft rotatably arranged in the paint storage tank, the stirring shaft is provided with stirring blades, the lower end of the stirring shaft passes through the mounting seat and the mounting column and extends into the base, a third gear is provided at the lower end of the stirring shaft, and a third rack meshing with the third gear is provided in the base along the extension direction of the slide groove.

[0010] Furthermore, a movable groove is provided on the base along its length direction, a movable seat is provided on the bottom side wall of the clamp seat and extends into the base through the movable groove, a screw rod is provided in the base and passes through the movable seat through a thread, and the screw rod rotates to drive the movable seat to move back and forth along the movable groove.

[0011] Furthermore, a motor for driving the screw rod to rotate is provided on the side wall of the base.

[0012] Furthermore, the first control unit includes a first infrared sensor and a second infrared sensor arranged on one side of the base, which are used to detect the position of the clamp assembly during the process of moving from one end of the base to the other end. The second control unit includes a third infrared sensor and a fourth infrared sensor arranged on the other side of the base, which are used to detect the position of the clamp assembly during the process of moving from the other end of the base to one end. The control component also includes a controller, and the first infrared sensor, the second infrared sensor, the third infrared sensor and the fourth infrared sensor are electrically connected to the controller.

[0013] Furthermore, the first control unit and the second control unit each include a rotation speed sensor for detecting the rotation of the corresponding mounting shaft, the rotation speed sensor is mounted on the mounting shaft, and the rotation speed sensor is electrically connected to the controller.

[0014] The present invention also provides a painting method, which uses the above-mentioned painting device for wood furniture production, and specifically comprises the following steps: S1, the fixture seat moves to one end of the base, at this time, the first rack at the corresponding end retracts into the corresponding installation cavity to make the positioning columns move away from each other, at this time, the first pressure sensor detects the pressure signal, and the controller controls the first infrared sensor and the second infrared sensor to start. At this time, the operator installs the plate on the fixture seat, starts the motor, and drives the fixture assembly to move to the other end of the base; S2, when the fixture assembly moves to the other end of the base, during the time period when the first infrared sensor and the second infrared sensor detect the fixture assembly, when the speed sensor detects that the mounting shaft is rotating, the controller controls the painting assembly to spray paint on both sides of the plate on the fixture assembly; S3, when the motor drives the clamp assembly to move to the other end of the base, the first rack at the corresponding end retracts into the corresponding installation cavity, so that the positioning columns move away from each other, the clamping and positioning of the plate on the clamp seat is released, the plate after painting is removed, and the plate to be painted is installed on the clamp seat. At this time, the second pressure sensor detects the pressure signal, the controller controls the third infrared sensor and the fourth infrared sensor to start, and the motor is started again to drive the clamp assembly to move to one end of the base; S4, when the fixture assembly moves toward one end of the base, during the time period when the third infrared sensor and the fourth infrared sensor detect the fixture assembly, when the speed sensor detects that the mounting shaft rotates, the controller controls the painting assembly to paint both sides of the plate on the fixture assembly; S5. Repeat steps S1-S4 to enable the paint spraying device to continuously spray paint on both sides of the plate.

[0015] Compared with the prior art, the present invention provides a paint spraying device and a paint spraying method for wood furniture production, which have the following beneficial effects: 1. The present invention, through the arrangement of the clamp assembly, the controller and the paint spraying assembly, enables the plate to be painted to be mounted on the clamp assembly during actual use, and the movement of the clamp assembly between the two ends of the base enables the paint spraying assembly to spray paint on both sides of the plate. At the same time, the movement of the clamp assembly on the base does not need to be reset, so that the switching of the clamp assembly between the two ends of the base can spray paint on both sides of the plate, thereby improving the painting efficiency of the paint spraying device.

[0016] 2. The present invention uses the clamp assembly to squeeze the corresponding end of the base to release the positioning of the plate by the positioning member, so as to facilitate the disassembly and assembly of the plate. At the same time, during the movement of the clamp assembly, the positioning member can further improve the fixing effect of the plate on the clamp seat, so that the paint spraying assembly can have a better effect on spraying paint on both sides of the plate.

[0017] 3. The present invention enables the clamp assembly to drive the paint tank to shake during the movement, and at the same time enables the stirring assembly to stir the paint in the paint tank, which can prevent the paint in the paint tank from sticking together, so that the paint sprayed from the paint spray head is more uniform.

[0018] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become readily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0020] Figure 1 This is one of the structural schematic diagrams of a paint spraying device for wood furniture production in the present invention.

[0021] Figure 2 This is the second structural schematic diagram of a paint spraying device for wood furniture production in the present invention.

[0022] Figure 3 This is the third structural schematic diagram of a paint spraying device for wood furniture production in the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the clamp assembly in the present invention.

[0024] Figure 5 It is a partial structural schematic diagram of the positioning member and the driving member in the present invention.

[0025] Figure 6 for Figure 3 Enlarged schematic diagram of part A.

[0026] Figure 7 It is a schematic diagram of the structure of the paint spraying assembly in the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the stirring assembly in the present invention.

[0028] Description of the numbers in the figure: 100, base; 101, moving groove; 102, baffle; 110, bracket; 120, plate; 130, fixture seat; 140, motor; 151, first infrared sensor; 152, second infrared sensor; 161, fourth infrared sensor; 200, paint storage tank; 210, mounting seat; 211, nozzle member; 220, mounting shaft; 221, second gear; 231, second rack; 240, mounting carriage; 310, moving seat; 320, screw rod; 401, installation cavity; 402, sliding groove; 403, assembly cavity; 404, groove; 410, positioning block; 411, positioning plate; 412, positioning column; 420, rotating shaft; 430, hinge rod; 440, tension spring; 450, first rack; 460, pre-fixing member; 501, first limit block; 502, second limit block; 503, first pressure sensor; 510, drive plate; 520, first gear; 601, chute; 610, mounting column; 620, turntable; 630, traction plate; 640, stirring shaft; 650, third rack; 651, L-shaped frame; 710, paint storage box; 720, paint supply tube; 801, stirring blade; 810, mounting frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] The following is combined with Figure 1-Figure 8 This embodiment is described in further detail.

[0031] like Figure 1-4As shown, a paint spraying device for wood furniture production in this embodiment includes a base 100, a fixture assembly, a bracket 110, a control assembly and a paint spraying assembly. The fixture assembly is movably arranged on the base 100, and the control assembly is used to control the paint spraying assembly to perform a paint spraying operation; In this embodiment, operating stations are formed at both ends of the base 100. When the fixture assembly moves on the base 100 to the corresponding end of the base 100, the operator disassembles and assembles the plate 120 on the fixture assembly at the corresponding operating station. The bracket 110 is installed on the base 100 and is located in the middle. It is used to install the spray paint assembly. When the clamp assembly moves between the two ends of the base 100, it can drive the plate 120 to pass through the bracket 110. During this process, the control assembly controls the spray paint assembly to spray paint on both sides of the plate 120. The fixture assembly includes a fixture seat 130 for carrying the plate 120. A positioning member for fixing the plate 120 is also provided in the fixture seat 130. The fixture seat 130 moves to the two ends of the base 100 to drive the positioning member to release the fixing of the plate 120. Combination Figure 4 As shown, in this embodiment, a groove 404 is provided on the upper side of the clamp seat 130 for the lower side of the plate 120 to extend into, and pre-fixing members 460 for limiting the position of the plate 120 are installed at both ends of the groove 404 and located on both sides of the plate 120. The pre-fixing members 460 are installed on the clamp seat 130 by bolts; When the clamp seat 130 moves to the end of the base 100, the positioning member releases the clamping and positioning of the two ends of the plate 120 in the groove 404, so that the plate 120 can be disassembled and assembled in the groove 404 through the pre-fixing member 460; when the clamp seat 130 moves away from the corresponding end of the base 100, the positioning member can automatically clamp and fix the plate 120 in the groove 404, so that the clamp assembly drives the plate 120 to move on the base 100 more stably, which is convenient for the spray painting assembly to spray paint it; Among them, the paint spraying assembly includes a paint storage tank 200 and a spray head 211 installed on a bracket 110. A driving assembly is provided in the base 100. The movement of the clamp seat 130 is used to drive the driving assembly to drive the paint storage tank 200 to shake. A stirring assembly is also provided in the paint storage tank 200. The shaking of the paint storage tank 200 is used to drive the stirring assembly to stir the paint in the paint storage tank 200.

[0032] Among them, the control component includes a first control unit and a second control unit arranged on both sides of the base 100 and a first trigger unit and a second trigger unit arranged at both ends of the base 100. When the clamp assembly moves to one end of the base 100, the first trigger unit is triggered to realize the operation of the first control unit and the second control unit stops. When the clamp assembly moves to the other end of the base 100, the second trigger unit is triggered to realize the operation of the second control unit and the first control unit stops.

[0033] The first control unit is used to control the start and stop of the painting assembly when the fixture assembly moves from one end to the other end of the base 100, so as to spray paint on both sides of the plate 120 on the fixture assembly; The second control unit is used to control the start and stop of the painting assembly during the process of the fixture assembly moving from the other end to the one end of the base 100, so as to spray paint on both sides of the plate 120 on the fixture assembly; Among them, through the setting of the first trigger unit and the second trigger unit, the first control unit and the second control unit on both sides of the base 100 can be switched according to the moving direction of the clamp assembly, so as to better realize the painting operation of the paint spraying assembly on both sides of the plate 120.

[0034] Combination Figure 3 as well as Figure 7 As shown, in this embodiment, the spray head component 211 includes a paint storage box 710 installed on the bracket 110, the paint storage box 710 is arranged along the height direction of the bracket 110, and the paint storage box 710 is evenly distributed on the side of the paint storage box 710 facing the plate 120. The paint spray heads connected therein are evenly distributed, and the bottom of the paint storage tank 200 is provided with a paint supply pipe 720 for supplying paint into the paint storage box 710, so that the paint spray head can spray paint on the surface of the plate 120 on the moving fixture assembly; Among them, through the setting of the driving component and the stirring component, the clamp component can drive the paint tank 200 to shake during the movement, and at the same time, the stirring component stirs the paint in the paint tank 200, which can prevent the paint in the paint tank 200 from sticking together, so that the paint sprayed from the paint spray head is more uniform.

[0035] In this embodiment, mounting cavities 401 are provided at both ends of the fixture seat 130, a sliding groove 402 is provided at the upper end of the mounting cavity 401 along the length direction of the fixture seat 130, and an assembly cavity 403 communicating with the mounting cavity 401 is provided in the fixture seat 130; The positioning member includes a positioning block 410 slidably arranged in the installation cavity 401, the positioning block 410 is provided with a positioning plate 411 extending through the sliding groove 402, the positioning plate 411 is provided with a positioning column 412 that can be inserted into the corresponding end surface of the plate 120, and the assembly cavity 403 is provided with a driving member for driving the positioning blocks 410 to approach each other.

[0036] In this embodiment, combined with Figure 5 As shown, a first limiting groove is provided on the side wall opposite to the installation cavity 401 along the moving direction of the positioning block 410, and a first limiting block 501 is provided on the side wall of the positioning block 410 and slides in the corresponding first limiting groove, thereby preferably realizing the sliding installation of the positioning block 410 in the installation cavity 401; In actual use, corresponding positioning holes are opened on the two end faces of the plate 120, so that under the action of the driving member, the positioning blocks 410 are driven to approach each other, and then the positioning columns 412 are driven to extend into the corresponding positioning holes, so that the plate 120 placed in the groove 404 is further fixed.

[0037] In this embodiment, the driving member includes a rotating shaft 420 rotatably arranged in the middle of the assembly cavity 403, a driving plate 510 is sleeved on the rotating shaft 420, and both ends of the driving plate 510 are respectively provided with a hinged rod 430 at one end hingedly connected to the driving plate 510, and the other end of the hinged rod 430 is hingedly connected to the corresponding positioning block 410, and a tension spring 440 for pulling the positioning blocks 410 closer to each other is provided in the assembly cavity 403, and a first gear 520 is sleeved at the lower end of the rotating shaft 420, and a first rack 450 is slidably provided in the assembly cavity 403 and on both sides of the first gear 520, and one end of the first rack 450 passes through the corresponding installation cavity 401 and extends out.

[0038] In this embodiment, assembly columns are provided at the lower end of the positioning block 410 and on the top wall of the assembly cavity 403, and both ends of the tension spring 440 are respectively installed on the corresponding assembly columns, thereby enabling the tension spring 440 to drive the positioning block 410 to move into the installation cavity 401, so that the positioning blocks 410 are close to each other; In order to ensure that the first rack 450 is stably slidably installed in the assembly cavity 403 and the installation cavity 401, a second limiting groove is provided on the side wall of the installation cavity 401, and a second limiting block 502 extending into the corresponding second limiting groove and sliding therein is provided on the side wall of the first rack 450; Through the structure in this embodiment, under the action of the tension spring 440, the positioning member clamps and positions the plate 120 in the groove 404. At this time, one end of the first rack 450 extends through the corresponding installation cavity 401, wherein baffles 102 are provided at both ends of the base 100. When the clamp seat 130 moves to the two ends of the base 100, the protruding end of the first rack 450 squeezes the corresponding baffle 102 to retract it into the installation cavity 401. At this time, the first rack 450 can drive the first gear 520 to rotate, and then drive the driving plate 510 to rotate, so that under the traction action of the corresponding hinged rod 430, the positioning blocks 410 move away from each other, and drive the positioning column 412 to disengage from the positioning hole, so that the positioning member releases the squeezing and positioning of the plate 120.

[0039] In this embodiment, a slide groove 601 is provided on the upper side of the base 100 along its width direction, and a mounting seat 210 for mounting the paint storage tank 200 is provided on the base 100 and located at the slide groove 601, and a mounting column 610 is provided on the mounting seat 210 and extends into the base 100 through the slide groove 601; The driving assembly includes a mounting shaft 220 rotatably arranged on the upper end surface of the base 100, the lower end of the mounting shaft 220 extends into the base 100, the upper end of the mounting shaft 220 is provided with a second gear 221, and the side wall of the clamp seat 130 is provided with a second rack 231 along its length direction to match the corresponding second gear 221, and the lower end of the mounting shaft 220 is provided with a turntable 620, and a traction plate 630 is hingedly connected to the lower side surface of the turntable 620 and at the edge, and one end of the traction plate 630 is hingedly connected to the mounting column 610.

[0040] In actual use of this embodiment, during the movement of the clamp seat 130 between the two ends of the base 100, the second rack 231 remains in a state of matching with the second gear 221; Through the above structure, during the movement of the clamp seat 130 between the two ends of the base 100, the second rack 231 and the second gear 221 cooperate to rotate the mounting shaft 220 and drive the rotating disk 620 to rotate. In particular, due to the cooperative arrangement of the mounting post 610 and the slide groove 601, the rotating disk 620 can be pulled by the traction plate 630 to reciprocate along the slide groove 601, thereby enabling the paint storage tank 200 installed thereon to reciprocate, thereby causing the paint inside to shake, so as to avoid the adhesion of the paint. In this embodiment, one end of the traction plate 630 is hingedly connected to the lower side of the turntable 620 through a hinge shaft, and the lower end of the mounting column 610 passes through the other end of the traction plate 630 to achieve a hinged connection between the mounting column 610 and the traction plate 630; Figure 6 As shown, in order to enable the paint storage tank 200 to be installed by smooth sliding, a mounting slide 240 is installed on the side wall of the bracket 110, and the paint storage tank 200 is arranged in the mounting slide 240. A strip groove is installed on the inner side wall opposite to the mounting slide 240, and a sliding block sliding in the strip groove is provided on the outer side wall of the paint storage tank 200. In this way, the paint storage tank 200 is slidably installed on the mounting slide 240, and at the same time, it is prevented from rotating in the circumferential direction, so that it can produce reciprocating shaking under the action of the turntable 620 and the traction plate 630.

[0041] In this embodiment, combined with Figure 8As shown, the stirring assembly includes a stirring shaft 640 rotatably arranged in the paint storage tank 200, and a stirring blade 801 is arranged on the stirring shaft 640. The lower end of the stirring shaft 640 passes through the mounting seat 210 and the mounting column 610 and extends into the base 100. A third gear 641 is arranged at the lower end of the stirring shaft 640, and a third rack 650 meshing with the third gear 641 is arranged in the base 100 along the extension direction of the slide groove 601.

[0042] Combination Figure 6 As shown, in this embodiment, the third rack 650 is fixedly mounted on the top wall of the base 100 through an L-shaped frame 651. Through the above structure, when the mounting column 610 reciprocates along the slide groove 601, the third gear 641 can move along the third rack 650, thereby causing the stirring shaft 640 to rotate, driving the stirring blade 801 thereon to rotate, and stirring the paint in the paint storage tank 200 to avoid the adhesion of the paint; In order to better install the stirring shaft 640, a mounting frame 810 is installed in the paint storage tank 200, and the upper end of the stirring shaft 640 is rotatably mounted on the mounting frame 810 through a bearing. Specifically, the bottom end of the stirring shaft 640 is mounted on the bottom wall of the paint storage tank 200 through a bearing seat, thereby realizing the rotatable installation of the stirring shaft 640 in the paint storage tank 200. Of course, a through hole for the stirring shaft 640 to pass through is opened on the bottom wall of the paint storage tank 200, and a sealing gasket is embedded in the through hole to be pressed against the stirring shaft 640, so as to realize the sealing of the through end of the stirring shaft 640; In this embodiment, a movable groove 101 is provided on the base 100 along its length direction, and a movable seat 310 is provided on the bottom side wall of the clamp seat 130 and passes through the movable groove 101 and extends into the base 100. A screw rod 320 is provided in the base 100 and is threaded through the movable seat 310. The screw rod 320 rotates to drive the movable seat 310 to reciprocate along the movable groove 101.

[0043] In this embodiment, the screw rod 320 is arranged along the moving direction of the moving groove 101. Since the side wall of the moving groove 101 limits the moving seat 310, the screw rod 320 can rotate to drive the moving seat 310 to move along the moving groove 101, and preferably drive the movement of the clamp seat 130 on the base 100, that is, realize the movement of the clamp assembly between the two ends of the base 100; In this embodiment, in order to drive the screw rod 320 to rotate, a motor 140 for driving the screw rod 320 to rotate is disposed on the side wall of the base 100 .

[0044] In this embodiment, Figure 1As shown, the first control unit includes a first infrared sensor 151 and a second infrared sensor 152 arranged on one side of the base 100, which are used to detect the position of the clamp assembly during the process of moving from one end of the base 100 to the other end. The second control unit includes a third infrared sensor and a fourth infrared sensor 161 arranged on the other side of the base 100, which are used to detect the position of the clamp assembly during the process of moving from the other end of the base 100 to one end. The control component also includes a controller, and the first infrared sensor 151, the second infrared sensor 152, the third infrared sensor and the fourth infrared sensor 161 are all electrically connected to the controller.

[0045] Among them, the controller is of existing structure, and its model can be set according to actual conditions. It can control the start and stop of the paint spray head. When it is actually used, the spray head component 211 also includes a paint spray pump (not shown in the figure). The paint spray pump is electrically connected to the controller. The paint spray pump can make the paint in the paint storage box 710 be sprayed out by the paint spray head, so as to realize the paint spraying treatment on the surface of the plate 120; Specifically, Figure 1 and Figure 3 As shown, the first infrared sensor 151 is installed on the side wall of the bracket 110, which is located on one side of the paint spray head, and the second infrared sensor 152 is installed on the side wall of the base 100 near the other end through the support plate, that is, the paint spray head is located between the first infrared sensor 151 and the second infrared sensor 152, wherein the distance between the paint spray head and the second infrared sensor 152 is greater than the length of the fixture assembly, thereby, in actual use, when the fixture assembly moves from one end to the other end of the base 100, when the first infrared sensor 151 detects the fixture assembly, the controller controls the paint spray head to perform the painting operation, and when the second infrared sensor 152 detects the fixture assembly, the controller controls the paint spray head to stop painting, thereby completing the painting assembly spraying paint on both sides of the plate 120 during the movement; Specifically, the third infrared sensor is installed on the side wall of the bracket 110, and the fourth infrared sensor 161 is installed on the side wall of the base 100 near one end through the support plate, that is, the paint spray head is located between the third infrared sensor and the fourth infrared sensor 161, wherein the distance between the paint spray head and the fourth infrared sensor 161 is greater than the length of the fixture assembly, thereby, in actual use, when the fixture assembly moves from the other end to one end of the base 100, when the third infrared sensor detects the fixture assembly, the controller controls the paint spray head to perform the painting operation, and when the fourth infrared sensor 161 detects the fixture assembly, the controller controls the paint spray head to stop painting; Specifically, the first trigger unit includes a first pressure sensor 503 disposed on the protruding end of the first rack 450 opposite to one end of the base 100, and the first trigger unit includes a second pressure sensor disposed on the protruding end of the first rack 450 opposite to the other end of the base 100. The first pressure sensor 503 and the second pressure sensor are both electrically connected to the controller. When the clamp assembly is actually used, when the first rack 450 at one end of the clamp assembly is retracted into the mounting cavity 401, the first pressure sensor 503 squeezes the corresponding baffle 102 to generate a pressure signal. The controller controls the first infrared sensor 151 and the second infrared sensor 152 to start, and the third infrared sensor and the fourth infrared sensor 161 to stop according to the pressure signal. When the clamp assembly moves so that the first rack 450 at the other end of the clamp assembly retracts into the installation cavity 401, at this time, the second pressure sensor squeezes the corresponding baffle 102 to generate a pressure signal, and the controller controls the third infrared sensor and the fourth infrared sensor 161 to start and the first infrared sensor 151 and the second infrared sensor 152 to stop according to the pressure signal. As a result, the first control unit and the second control unit on both sides of the base 100 can be switched according to the moving direction of the clamp assembly, so as to better realize the paint spraying operation on both sides of the plate 120 by the paint spraying assembly.

[0046] In actual use, the first control unit and the second control unit further include a rotation speed sensor for detecting the rotation of the corresponding mounting shaft 220, and the rotation speed sensor is connected to the controller.

[0047] In this embodiment, a speed sensor is installed at the upper end of the mounting shaft 220 to detect the rotation of the mounting shaft 220. In order to avoid waste caused by the paint spray head continuing to spray paint when the fixture assembly stops due to a fault, the speed sensor detects the rotation of the mounting shaft 220 to determine whether the fixture seat 130 moves. As a result, when the first infrared sensor 151 or the third infrared sensor detects the fixture assembly and the speed sensor detects the rotation of the corresponding mounting shaft 220, the controller controls the paint spray head to spray paint. When the first control unit or the second control unit is controlling the paint spray assembly to spray paint, if the speed sensor does not detect the rotation of the mounting shaft 220, the controller controls the paint spray head to stop operating to avoid waste caused by the paint spray head continuing to spray paint.

[0048] This embodiment also provides a painting method, which uses the above-mentioned painting device for wood furniture production, and specifically includes the following steps: S1, the fixture seat 130 moves to one end of the base 100, at this time, the first rack 450 at the corresponding end retracts into the corresponding installation cavity 401, so that the positioning columns 412 are away from each other, at this time, the first pressure sensor 503 detects the pressure signal, and the controller controls the first infrared sensor 151 and the second infrared sensor 152 to start, at this time, the operator installs the plate 120 on the fixture seat 130, starts the motor 140, and drives the fixture assembly to move to the other end of the base 100; S2, when the fixture assembly moves toward the other end of the base 100, during the time period when the first infrared sensor 151 and the second infrared sensor 152 detect the fixture assembly, when the speed sensor detects that the mounting shaft 220 rotates, the controller controls the painting assembly to paint both sides of the plate 120 on the fixture assembly; S3, when the motor 140 drives the clamp assembly to move to the other end of the base 100, the first rack 450 at the corresponding end retracts into the corresponding installation cavity 401, so that the positioning columns 412 are away from each other, the plate 120 on the clamp seat 130 is released from the clamping and positioning, the plate 120 after painting is removed, and the plate 120 to be painted is installed on the clamp seat 130. At this time, the second pressure sensor detects the pressure signal, the controller controls the third infrared sensor and the fourth infrared sensor 161 to start, and the motor 140 is started again to drive the clamp assembly to move to one end of the base 100; S4, when the fixture assembly moves toward one end of the base 100, during the time period when the third infrared sensor and the fourth infrared sensor 161 detect the fixture assembly, when the speed sensor detects that the mounting shaft 220 rotates, the controller controls the painting assembly to paint both sides of the plate 120 on the fixture assembly; S5. Repeat steps S1-S4 to allow the paint spraying device to continuously spray paint on both sides of the plate 120.

[0049] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in this application can be achieved, and this document is not limited here.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A paint spraying device for wood furniture production, comprising a base (100), a fixture assembly, a bracket (110), a control assembly and a paint spraying assembly, characterized in that: The clamp assembly is movably arranged on the base (100), and the control assembly is used to control the painting assembly to perform a painting operation; wherein, The clamp assembly comprises a clamp seat (130) for carrying a plate (120), a positioning piece for fixing the plate (120) is also provided in the clamp seat (130), and the clamp seat (130) moves to the two ends of the base (100) to drive the positioning piece to release the fixing of the plate (120); The paint spraying assembly comprises a paint storage tank (200) and a spray head (211) mounted on a bracket (110); a driving assembly is provided in the base (100); the clamp seat (130) moves to drive the driving assembly to drive the paint storage tank (200) to shake; a stirring assembly is also provided in the paint storage tank (200); the shaking of the paint storage tank (200) is used to drive the stirring assembly to stir the paint in the paint storage tank (200); The control component comprises a first control unit and a second control unit arranged on both sides of the base (100) and a first trigger unit and a second trigger unit arranged at both ends of the base (100); when the clamp component moves to one end of the base (100), the first trigger unit is triggered to enable the first control unit to operate and the second control unit to stop; when the clamp component moves to the other end of the base (100), the second trigger unit is triggered to enable the second control unit to operate and the first control unit to stop.

2. A paint spraying device for wood furniture production according to claim 1, characterized in that: The fixture seat (130) is provided with mounting cavities (401) at both ends, a sliding groove (402) is provided at the upper end of the mounting cavity (401) along the length direction of the fixture seat (130), and an assembly cavity (403) communicating with the mounting cavity (401) is provided in the fixture seat (130); The positioning member comprises a positioning block (410) slidably arranged in the installation cavity (401); the positioning block (410) is provided with a positioning plate (411) extending through the sliding groove (402); the positioning plate (411) is provided with a positioning column (412) which can be inserted into the corresponding end surface of the plate (120); and the assembly cavity (403) is provided with a driving member for driving the positioning blocks (410) to move closer to each other.

3. A paint spraying device for wood furniture production according to claim 2, characterized in that: The driving member comprises a rotating shaft (420) rotatably arranged in the middle of the assembly cavity (403), a driving plate (510) being sleeved on the rotating shaft (420), hinged rods (430) being hingedly connected to the driving plate (510) at both ends of the driving plate (510), the other end of the hinged rod (430) being hingedly connected to the corresponding positioning block (410), a tension spring (440) for pulling the positioning blocks (410) closer to each other being arranged in the assembly cavity (403), a first gear (520) being sleeved at the lower end of the rotating shaft (420), a first rack (450) being slidably arranged in the assembly cavity (403) and located on both sides of the first gear (520), one end of the first rack (450) penetrating the corresponding installation cavity (401) and extending out.

4. A paint spraying device for wood furniture production according to claim 1, characterized in that: A slide groove (601) is provided on the upper side of the base (100) along its width direction, a mounting seat (210) for mounting the paint storage tank (200) is provided on the base (100) and located at the slide groove (601), and a mounting column (610) is provided on the mounting seat (210) and passes through the slide groove (601) and extends into the base (100); The driving assembly comprises a mounting shaft (220) rotatably arranged on the upper end surface of the base (100), the lower end of the mounting shaft (220) extending into the base (100), the upper end of the mounting shaft (220) being provided with a second gear (221), the side wall of the fixture seat (130) being provided with a second rack (231) matching with the corresponding second gear (221) along its length direction, the lower end of the mounting shaft (220) being provided with a rotating disk (620), the lower side surface of the rotating disk (620) being hingedly connected to a traction plate (630) at the edge, one end of the traction plate (630) being hingedly connected to the mounting column (610).

5. A paint spraying device for wood furniture production according to claim 4, characterized in that: The stirring assembly comprises a stirring shaft (640) rotatably arranged in the paint storage tank (200), a stirring blade (801) being arranged on the stirring shaft (640), the lower end of the stirring shaft (640) passing through the mounting seat (210) and the mounting column (610) and extending into the base (100), a third gear (641) being arranged at the lower end of the stirring shaft (640), and a third rack (650) meshing with the third gear (641) being arranged in the base (100) along the extension direction of the slide groove (601).

6. A paint spraying device for wood furniture production according to claim 1, characterized in that: A movable groove (101) is provided on the base (100) along its length direction; a movable seat (310) is provided on the bottom side wall of the clamp seat (130) and passes through the movable groove (101) and extends into the base (100); a screw rod (320) is provided in the base (100) and passes through the movable seat (310) through a thread; the screw rod (320) rotates to drive the movable seat (310) to reciprocate along the movable groove (101).

7. A paint spraying device for wood furniture production according to claim 6, characterized in that: A motor (140) for driving the screw rod (320) to rotate is provided on the side wall of the base (100).

8. The paint spraying device for wood furniture production according to claim 5, characterized in that: The first control unit comprises a first infrared sensor (151) and a second infrared sensor (152) arranged on one side of the base (100), and used to detect the position of the clamp assembly during the process of moving from one end of the base (100) to the other end. The second control unit comprises a third infrared sensor and a fourth infrared sensor (161) arranged on the other side of the base (100), and used to detect the position of the clamp assembly during the process of moving from the other end of the base (100) to one end. The control component also comprises a controller, and the first infrared sensor (151), the second infrared sensor (152), the third infrared sensor and the fourth infrared sensor (161) are electrically connected to the controller.

9. A paint spraying device for wood furniture production according to claim 8, characterized in that: The first control unit and the second control unit both further include a rotation speed sensor for detecting the rotation of the corresponding installation shaft (220), and the rotation speed sensor is electrically connected to the controller.

10. A painting method, characterized in that: A paint spraying device for wood furniture production according to any one of claims 1 to 9 is used, which specifically comprises the following steps: S1, the fixture seat (130) moves to one end of the base (100), at which time, the first rack (450) at the corresponding end retracts into the corresponding installation cavity (401) so that the positioning columns (412) are moved away from each other, at which time, the first pressure sensor (503) detects a pressure signal, and the controller controls the first infrared sensor (151) and the second infrared sensor (152) to start, at which time, the operator installs the plate (120) on the fixture seat (130), starts the motor (140), and drives the fixture assembly to move to the other end of the base (100); S2, when the fixture assembly moves toward the other end of the base (100), during the time period when the first infrared sensor (151) and the second infrared sensor (152) detect the fixture assembly, when the rotation speed sensor detects that the mounting shaft (220) is rotating, the controller controls the painting assembly to spray paint on both sides of the plate (120) on the fixture assembly; S3, when the motor (140) drives the clamp assembly to move to the other end of the base (100), the first rack (450) at the corresponding end retracts into the corresponding installation cavity (401) so that the positioning columns (412) move away from each other, the plate (120) on the clamp seat (130) is released from the clamping and positioning, the plate (120) after painting is removed, and the plate (120) to be painted is installed on the clamp seat (130). At this time, the second pressure sensor detects a pressure signal, the controller controls the third infrared sensor and the fourth infrared sensor (161) to start, and the motor (140) is started again to drive the clamp assembly to move to one end of the base (100); S4, when the fixture assembly moves toward one end of the base (100), during the time period when the third infrared sensor and the fourth infrared sensor (161) detect the fixture assembly, when the rotation speed sensor detects that the mounting shaft (220) is rotating, the controller controls the painting assembly to spray paint on both sides of the plate (120) on the fixture assembly; S5. Repeat steps S1-S4, so that the paint spraying device can continue to spray paint on both sides of the plate (120).

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