Arc-shaped cabinet door surface carving machining device and machining method

Abstract

The invention relates to an arc-shaped cabinet door surface processing device and processing method.The arc-shaped cabinet door surface processing device comprises an engraving machine for arc-shaped cabinet door surface processing and a polishing device, the engraving machine comprises an engraving workbench and an engraving machine body located on the engraving workbench, a hollow shell is arranged at the bottom of the engraving workbench, and a plurality of through holes are formed in the engraving workbench; a plurality of electromagnets are arranged in the hollow shell, a movable rod penetrates through the interior of the through hole, a bearing disc is fixed to the top of the movable rod, the bottom of the movable rod penetrates through the carving workbench and is provided with an iron disc attracted to the electromagnets, and the movable rod is sleeved with a reset spring; the top of the rotating end of the polishing rotating mechanism is provided with a front face polishing assembly and a back face polishing assembly which can make contact with the front side and the back of the cabinet door correspondingly, and the device not only can improve the carving and polishing quality and precision, but also can adapt to various arc-shaped cabinet doors with different shapes, sizes and design requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of arc cabinet door surface processing, and particularly relates to an arc cabinet door surface engraving processing device and a processing method thereof. Background Art

[0002] like Figure 1 The patent of the present invention is shown in the application of the existing home. In today's furniture market, the curved cabinet door has become an important element to improve the quality and decorative effect of furniture due to its beautiful lines and unique shape. In addition, the curved cabinet door design can form a space for taking and placing supplies on the side under the same door opening distance, thereby increasing the range of use. In addition, the curved cabinet door is combined with the hollow design, rattan craft design, and edge craft design to improve the overall beauty of the home, and is also favored by many foreign customers.

[0003] As a custom carving on the surface of bamboo and wood furniture, carving has long been a traditional decorative method for Chinese homes, but most of them are flat or spliced ​​bamboo and wood board flat processing, and then the surface needs to be polished and painted (veneer or edging) processes, but the traditional engraving machine has exposed obvious limitations when processing curved cabinet doors and cannot adapt to the surface processing of curved cabinet doors. In terms of fixing methods, conventional engraving machine engraving workbenches mostly use simple clamps or pressure strips to fix the workpiece. This method may be feasible for flat panels, but for workpieces with complex curved surfaces such as curved cabinet doors, it is difficult to achieve all-round, uniform and stable fixation. During the engraving process, the cabinet door is prone to slight displacement or vibration due to uneven force, which directly affects the accuracy and quality of the engraving.

[0004] On the other hand, since the curvature of the curved cabinet doors is not completely consistent and there are various shapes, the traditional polishing device is unable to adapt to different curvatures. After the surface is carved, its edge needs to be polished to facilitate the subsequent painting or partial veneer process. They cannot flexibly adjust the position and angle of the polishing parts according to the specific curvature of the curved cabinet door, resulting in the polishing parts not being able to fully fit the cabinet door surface, thus affecting the quality and accuracy of polishing.

[0005] During operation, traditional devices may have problems such as unstable mechanical transmission and uneven grinding force, resulting in poor polishing effect and may even cause damage to the surface of the cabinet door. Summary of the invention

[0006] The purpose of the present invention is to provide an engraving machine for surface processing of curved cabinet doors. The device can not only improve the quality and accuracy of engraving, but also adapt to curved cabinet doors of various shapes, sizes and design requirements, showing strong versatility and inventiveness.

[0008] The technical effects achieved by the present invention are as follows: a curved cabinet door surface engraving processing device, comprising an engraving machine and a polishing device for curved cabinet door surface processing, the engraving machine comprising an engraving workbench and an engraving machine body located on the engraving workbench, a hollow shell is arranged at the bottom of the engraving workbench, a plurality of through holes are opened on the engraving workbench, a plurality of electromagnets are arranged inside the hollow shell, a movable rod is passed through the inside of each through hole, a bearing plate is fixed on the top of the movable rod, the bottom of the movable rod passes through the engraving workbench and is installed with an iron plate attracted to the electromagnet, the iron plate extends to the inside of the hollow shell, and a reset spring is sleeved on the movable rod, one end of the reset spring is fixed to the bearing plate and the other end acts between the engraving workbench to make the movable rod stand on the engraving workbench; The polishing device comprises a polishing workbench, a polishing rotating mechanism is arranged on the top of the polishing workbench, and a front polishing component and a back polishing component which can contact the front side and the back of the cabinet door respectively are arranged on the top of the rotating end of the polishing rotating mechanism.

[0009] Preferably, a rubber anti-slip surface is fixed to the upper surface of the carrying plate.

[0010] Preferably, a first connecting plate is fixedly connected to the top of the rotating end of the polishing rotating mechanism, a first fixing plate is fixed to one side of the first connecting plate facing the cabinet door, a first elastic component is arranged on the first fixing plate, a first supporting plate is arranged at the telescopic end of the first elastic component, the front polishing component is arranged on the first supporting plate, and a third fixing plate is fixed to the top of the first connecting plate, a second fixing plate is fixed to the bottom of the third fixing plate, a second elastic component is arranged on one side of the second fixing plate, a second supporting plate is arranged at the telescopic end of the second elastic component, and the back polishing component is arranged on the second supporting plate.

[0011] Preferably, the first elastic component includes a first guide groove provided on the first fixing plate, a first fixing shaft is fixed inside the first guide groove, a first slider and a first spring are sleeved on the first fixing shaft, one side of the first slider is connected to the first spring, the other end of the first spring acts on the end of the first guide groove, and the bottom of the first slider is connected to the first supporting plate, so that the front grinding component on the first supporting plate presses against the cabinet door; The second elastic component includes a second guide groove opened on the second fixed plate, a second fixed shaft is fixed inside the second guide groove, a second slider and a second spring are sleeved on the second fixed shaft, one side of the second slider is connected to the second spring, and the other side of the second spring acts on the second guide groove, the bottom of the second slider is connected to the second supporting plate, and the elastic force of the second spring pushes the back grinding component on the second supporting plate to contact the surface of the cabinet door.

[0012] Preferably, the front side grinding assembly and the back side grinding assembly each comprise a grinding motor respectively fixed on the first support plate and the second support plate, and a grinding roller is fixed to the output end of the grinding motor.

[0013] Preferably, the polishing workbench is also provided with a clamping mechanism for fixing the curved cabinet door, the clamping mechanism includes four fixing rods fixed on the top of the polishing workbench, a positioning cylinder is fixed on the top of each fixing rod, a fourth fixing plate is hinged at the telescopic end of the positioning cylinder, and each of the fourth fixing plates is fixed with an anti-slip surface on the side facing the cabinet door.

[0014] Preferably, the polishing rotation mechanism comprises a stepper motor fixed on the polishing workbench, and the output end of the stepper motor is vertically upward and fixedly connected to the first connecting plate.

[0015] Preferably, a pair of parallel first slide grooves are provided on the engraving workbench, a lateral moving assembly is provided inside the first slide groove, each lateral moving assembly is provided with a first support rod, the tops of the two first support rods are connected with a support frame, a second slide groove is provided on the support frame, a longitudinal moving assembly is provided inside the second slide groove, a telescopic rotating assembly is provided on the longitudinal moving assembly, and the engraving machine body is movably fixed to the telescopic rotating assembly; The lateral movement component includes a first motor fixed to the engraving workbench, a first threaded rod located inside the first slide groove is installed at the output end of the first motor, a first threaded sleeve is sleeved on the first threaded rod, and the top of the first threaded sleeve is connected to the first support rod, and the longitudinal movement component includes a second motor arranged on the support frame, a second threaded rod located inside the second slide groove is installed at the output end of the second motor, a second threaded rod is sleeved on the second threaded rod, and the bottom of the second threaded sleeve is connected to the telescopic rotation component.

[0016] Preferably, the telescopic rotation assembly includes an electric telescopic rod connected to the second threaded sleeve, a third motor is installed at the telescopic end of the electric telescopic rod, and an output end of the third motor is connected to the engraving machine body.

[0017] A method for engraving a curved cabinet door surface, using the curved cabinet door surface engraving device as described above, is characterized in that: Step 1: Place the curved cabinet door on the engraving workbench. During the placement process, the surface of the curved cabinet door will contact the supporting plate on the engraving workbench, and the part of the supporting plate that matches the shape of the curved cabinet door will be compressed, so that the supporting plate that supports the curved cabinet door will start to move downward. The compressed supporting plate is fixedly connected to the movable rod at its bottom, so the downward movement of the supporting plate will drive the movable rod to move downward in the through hole to overcome the elastic force of the reset spring, and make the iron plate at the lower end surface of the movable rod contact the electromagnet below; Step 2: Power on multiple electromagnets in the hollow shell at the bottom of the engraving workbench. The range of the electromagnets that are powered on can cover the area of ​​the iron plate that sinks the curved cabinet door. After power is turned on, the iron plate that contacts the electromagnet is firmly adsorbed by the magnetic force of the electromagnet. The unpressed movable rod keeps the iron plate at the lower end from being adsorbed by the electromagnet under the action of the elastic force of the return spring. The bearing plate that is not squeezed and moved by the curved cabinet door will effectively limit and fix the periphery of the curved cabinet door. Step 3: adding wedges to the lower peripheral side of the curved cabinet door to improve the position of the peripheral edge of the curved cabinet door being limited by the surrounding bearing plate; Step 4: The engraving machine body engraves the surface of the curved cabinet door; Step 5: After the engraving is completed, the cabinet door is moved into a polishing device, which includes a polishing workbench. The edge of the curved cabinet door needs to face between the front polishing assembly and the back polishing assembly, and then the front polishing assembly and the back polishing assembly are rotated by a polishing rotating mechanism, so that the curved cabinet door is located between the front polishing assembly and the back polishing assembly; Step six: fix the curved cabinet door by means of a clamping mechanism, and then start the front polishing assembly and the back polishing assembly, the polishing motor drives the polishing roller to polish the side and the back of the curved cabinet door at the same time, and then after polishing one area, move the front polishing assembly and the back polishing assembly to the next area for polishing by means of a polishing rotating mechanism; during polishing, the first elastic assembly and the second elastic assembly can adapt to the different curvatures of the curved cabinet door, so that the front polishing assembly and the back polishing assembly are respectively fitted with the side and the back of the curved cabinet door, thereby performing polishing.

[0018] The present invention has the following advantages: The invention utilizes the characteristics of the curved cabinet door, designs a structure in which a movable rod drives the iron plate to move downward and contact the electromagnet to perform adsorption and limiting, and then uses the edge bearing plate to clamp the workpiece, so that it can adapt to different curved cabinet doors for engraving. The polishing device designed by the present invention can adapt to different curvatures of the curved cabinet door through the first elastic component and the second elastic component at the same time, so that the side grinding component and the back grinding component are respectively fitted with the side and back of the curved cabinet door for grinding. The device can not only adapt to curved cabinet doors with different curvatures, but also grind the side and back of the curved cabinet door at the same time, thereby improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the structure of the lateral moving component of the present invention; Figure 4 is an exploded view of the engraving workbench of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the wedge block used in the engraving workbench of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the novel whole of the present invention; Figure 7 This is the operation diagram of the new invention when grinding the curved cabinet door; Figure 8 It is a structural schematic diagram of the novel clamping mechanism of the present invention; Fig. 9 It is a schematic structural diagram of the novel first elastic component and the second elastic component of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 100-arc cabinet door, 1, engraving workbench; 2, first slide; 3, through hole; 4, first support rod; 5, support frame; 6, second slide; 7, engraving machine body; 8, hollow shell; 9, electromagnet; 10, movable rod; 11, bearing plate; 12, iron plate; 13, reset spring; 14, first motor; 15, first threaded rod; 16, first threaded sleeve; 17, second motor; 18, second threaded rod; 19, second threaded sleeve; 20, electric telescopic rod; 21, third motor; 22, wedge; 23-rubber anti-slip surface.

[0023] 31. Polishing workbench; 32. First connecting plate; 33. First fixed plate; 34. First supporting plate; 321. Third fixed plate; 35. Second fixed plate; 36. Second supporting plate; 37. Fixed rod; 38. Positioning cylinder; 39. Fourth fixed plate; 40. Stepper motor; 41. First guide groove; 42. First fixed shaft; 43. First slider; 44. First spring; 45. Second guide groove; 46. Second fixed shaft; 47. Second slider; 48. Second spring; 49. Grinding motor; 50. Grinding roller. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0025] like Figure 1-4 As shown, the technical solution adopted by the present invention is specifically as follows: an engraving workbench 1, a pair of parallel first slide grooves 2 and a plurality of through holes 3 are provided on the engraving workbench 1, a lateral moving component is arranged inside the first slide groove 2, a first support rod 4 is fixed on the lateral moving component, a support frame 5 is arranged on the top of the first support rod 4, a second slide groove 6 is arranged on the support frame 5, a longitudinal moving component is arranged inside the second slide groove 6, a telescopic rotating component is arranged on the longitudinal moving component, and an engraving machine body 7 is arranged at the bottom of the telescopic rotating component; In this embodiment, the longitudinal moving component and the transverse moving component can be electric cylinders or pneumatic cylinders. The first support rod 4 is fixedly connected to the moving end of the transverse moving component, so that the transverse moving component is used to drive the first support rod 4 and the engraving machine body 7 to move transversely. The longitudinal moving component is used to drive the engraving machine body 7 to move longitudinally. The telescopic rotating component includes a vertically arranged telescopic cylinder. The telescopic end of the telescopic cylinder has a rotating motor for driving the engraving machine body 7 to control the engraving machine body 7 to be perpendicular to the working engraving surface.

[0026] A hollow shell 8 is provided at the bottom of the engraving workbench 1, and a plurality of electromagnets 9 are provided inside the hollow shell 8. The through holes 3 are evenly arranged in a rectangular array, and a movable rod 10 is provided inside each through hole 3. A carrying plate 11 is provided on the top of the movable rod 10. The bottom of the movable rod 10 passes through the engraving workbench 1 and is installed with an iron plate 12 that attracts the electromagnet 9. The iron plate 12 is located inside the hollow shell 8, and a reset spring 13 is sleeved on the movable rod 10, and the reset spring 13 is located between the carrying plate 11 and the engraving workbench 1.

[0027] In this embodiment, the hollow shell 8 is in the shape of a box with an open top, and the electromagnet 9 is located in the hollow shell 8. The elastic force of the return spring 13 can support the unpressurized carrier plate 11 to prevent the iron plate 12 from contacting the electromagnet 9 below.

[0028] During work: When preparing to engrave the curved cabinet door, the first step is to place the curved cabinet door on the engraving workbench 1. Due to the unique curved shape of the curved cabinet door, during the placement process, the surface of the curved cabinet door will contact the supporting plate 11 on the engraving workbench 1.

[0029] Those parts of the supporting plates 11 that match the shape of the curved cabinet door will be the first to be subjected to the pressure from the cabinet door, causing the supporting plates 11 that support the curved cabinet door to start moving downward. These squeezed supporting plates 11 are fixedly connected to the movable rod 10 at the bottom, so the downward movement of the supporting plates 11 will drive the movable rod 10 to move downward inside the through hole 3 to overcome the elastic force of the reset spring 13, and make the iron plate 12 located at the lower end surface of the movable rod 10 contact the electromagnet 9 below.

[0030] The through hole 3 matches the movable rod 10 , and the cross-sectional area of ​​the through hole should be smaller than the iron plate 12 , so that the friction between the outer surface of the movable rod 10 and the inner wall of the through hole 3 is low or does not come into contact.

[0031] Next, power is supplied to the multiple electromagnets 9 located in the hollow shell 8 at the bottom of the engraving workbench 1. The range of power supply of the electromagnets 9 is sufficient to cover the area of ​​the iron plate 12 that sinks under the arc-shaped cabinet door. After power is supplied, the iron plate 12 that contacts the electromagnets 9 is firmly adsorbed by the magnetic force of the electromagnets 9, and the unpressurized movable rod 10 keeps the iron plate 12 at its lower end from being adsorbed by the electromagnet 9 under the action of the elastic force of the reset spring 13.

[0032] During the process that the iron plate 12 is firmly adsorbed by the magnetic force of the electromagnet 9, the reset spring 13 on the movable rod 10 will also be affected. As the movable rod 10 continues to move downward, the reset spring 13 will be gradually compressed. During the compression of the reset spring 13, elastic potential energy will be stored to prepare for the subsequent rebound action. At the same time, those supporting plates 11 that are not squeezed and moved by the curved cabinet door will effectively limit and fix the periphery of the curved cabinet door. This multi-directional fixation can prevent any shaking or displacement of the curved cabinet door during the subsequent engraving process, providing a guarantee for high-precision engraving operations.

[0033] Then, the engraving machine body 7 is started to start engraving the cabinet door limited on the carrier plate 11. Generally, the carrier plate 11 is a cube, and the design thickness of the cabinet door is consistent with the structure of the carrier plate 11. If there is a partial gap, a triangular wedge 22 can be inserted between the edge of the cabinet door placed on the carrier plate 11 and the adjacent carrier plate 11 before engraving, so as to further improve the stability during the engraving process.

[0034] In one embodiment of the present invention, the lateral movement assembly includes a first motor 14 arranged on the engraving workbench 1, and the output end of the first motor 14 is installed with a first threaded rod 15 located inside the first slide groove 2, and the first threaded rod 15 is sleeved with a first threaded sleeve 16, and the top of the first threaded sleeve 16 is connected to the first support rod 4.

[0035] The first motor 14 drives the first threaded rod 15 so that the first threaded sleeve 16 drives the first support rod 4 to move laterally, thereby causing the engraving machine body 7 to move laterally.

[0036] The longitudinal moving assembly includes a second motor 17 arranged on the support frame 5, and the output end of the second motor 17 is installed with a second threaded rod 18 located inside the second slide groove 6. The second threaded rod 18 is sleeved with a second threaded sleeve 19, and the bottom of the second threaded sleeve 19 is connected to the telescopic rotating assembly.

[0037] At the same time, the second motor 17 drives the second threaded rod 18 so that the second threaded sleeve 19 drives the telescopic rotating assembly to move longitudinally, thereby causing the engraving machine body 7 to move longitudinally.

[0038] The telescopic rotation assembly includes an electric telescopic rod 20 connected to the second threaded rod 18. A third motor 21 is installed at the telescopic end of the electric telescopic rod 20. The output end of the third motor 21 is connected to the engraving machine body 7. When engraving, the electric telescopic rod 20 drives the engraving machine body 7 to move up and down, so as to perform comprehensive engraving. The third motor 21 drives the engraving machine body 7 to change its angle, so that it can adapt to the curved surface of the curved cabinet door, so that the engraving machine body 7 is always in a vertical state with the curved cabinet door, thereby improving the engraving accuracy.

[0039] During operation, the lateral movement component located inside the first slide 2 begins to play a role, so that the engraving machine body 7 moves smoothly in the lateral direction. Through this lateral movement, the position of the engraving machine body 7 in the horizontal lateral direction can be accurately adjusted so that it can be aligned with the part of the curved cabinet door that needs to be engraved horizontally. The longitudinal movement component can control the position adjustment of the engraving machine body 7 in the longitudinal direction. Through precise longitudinal movement, the engraving machine body 7 can accurately reach the position where the curved cabinet door needs to be engraved in the longitudinal direction. When the engraving machine body 7 encounters the curved surface of the curved cabinet door during operation, the telescopic rotation component can drive the engraving machine body 7 to rotate at an angle to ensure that the engraving head of the engraving machine body 7 always remains vertical to the surface of the curved cabinet door. Under the precise coordination of the lateral movement component, the longitudinal movement component and the telescopic rotation component, the engraving machine body 7 can perform engraving operations at various positions of the curved cabinet door with extremely high precision and accuracy. Whether it is a flat part or a curved surface, a uniform and fine engraving effect can be achieved. This high adaptability enables the device to not only improve the quality and precision of engraving, but also cope with curved cabinet doors of various shapes, sizes and design requirements.

[0040] In one embodiment of the present invention, a rubber anti-slip surface 23 is provided on the carrying plate 11, and the rubber anti-slip surface can further prevent the curved cabinet door from sliding.

[0041] It should be noted that every two carrier plates 11 fit each other, and such an arrangement can ensure that no gap will appear when the curved cabinet door is fixed, thereby improving its fixing and limiting effect, and can also prevent impurities from entering the through hole 3.

[0042] Meanwhile, the electromagnet 9 is provided with a wire connected to the outside world. The working principle of the electromagnet 9 belongs to the prior art and will not be described in detail here.

[0043] like Figure 1-4 As shown, after the engraving is completed, the cabinet door needs to be transferred to a surface polishing device, and the polishing device includes a polishing workbench 31, a polishing rotating mechanism is arranged on the top of the polishing workbench 31, a first connecting plate 32 is arranged on the top of the polishing rotating mechanism, a first fixing plate 3 is fixed to one side of the first connecting plate 32, a first elastic component is arranged on the first fixing plate 33, a first supporting plate 34 is arranged on the first elastic component, a front grinding component capable of contacting the cabinet door is arranged on the first supporting plate 34, and a third fixing plate 321 is arranged on the top of the first connecting plate 32, a second fixing plate 35 is arranged at the bottom of the third fixing plate 321, a second elastic component is arranged on one side of the second fixing plate 35, a second supporting plate 36 is arranged on the second elastic component, and a back grinding component capable of contacting the back of the cabinet door is arranged on the second supporting plate 36.

[0044] In this embodiment, a clamping mechanism for fixing the curved cabinet door is also provided on the top of the polishing workbench 31. The clamping mechanism includes four fixing rods 37 arranged on the top of the polishing workbench 31. A positioning cylinder 38 is provided on the top of each fixing rod 37. The telescopic end of the positioning cylinder 38 is hinged with a fourth fixing plate 39.

[0045] Four fixing rods 37 are arranged on the top of the polishing table 31, providing a stable support for the entire clamping mechanism, ensuring that the curved cabinet door can maintain a stable position during the polishing process. A positioning cylinder 38 is fixed to the top of each fixing rod 37. The design of these cylinders allows their telescopic ends to be precisely adjusted to accommodate curved cabinet doors of different sizes and shapes.

[0046] The telescopic end of the positioning cylinder 38 is connected to the fourth fixing plate 39 by a hinge. This design allows the fourth fixing plate 39 to be fine-tuned on the surface of the curved cabinet door to ensure a close fit with the cabinet door. When the positioning cylinder 38 applies force, the fourth fixing plate 39 will firmly press the curved cabinet door to prevent it from shifting during the grinding process.

[0047] On the other hand, in this embodiment, each fourth fixing plate 39 is provided with an anti-slip surface, which can prevent the curved cabinet door from sliding when being fixed.

[0048] In one embodiment of the present invention, the polishing rotating mechanism includes a stepper motor 40 disposed on the polishing workbench 31, and a rotating shaft is installed at the output end of the stepper motor 40, and the top of the rotating shaft is connected to the first connecting plate 32. The stepper motor 40 drives the rotating shaft to make the first connecting plate 32 perform stepping motion, so that each area of ​​the curved cabinet door can be polished.

[0049] The first elastic component includes a first guide groove 41 opened on the first fixed plate 33, a first fixed shaft 42 is arranged inside the first guide groove 41, a first slider 43 and a first spring 44 are sleeved on the first fixed shaft 42, one side of the first slider 43 is connected to the first spring 44, and the bottom of the first slider 43 is connected to the first support plate 34.

[0050] When the curved cabinet door is placed on the polishing device and polished, the front polishing assembly will be subjected to a reaction force from the cabinet door surface, and the reaction force is transmitted to the first slider 43 through the first support plate 34, causing the slider to slide along the first fixed axis 42 in the first guide groove 41. As the first slider 43 slides, the first spring 44 will be compressed, and the first spring 44 will always generate elastic force on the first slider 43. The elastic force of the first spring 44 ensures that the front polishing assembly can maintain stable contact and pressure with the cabinet door surface. The elastic effect of the first spring 44 allows the front polishing assembly to adaptively adjust its position even if the shape or size of the cabinet door changes, maintaining a close fit with the cabinet door surface, thereby adapting to the shapes of different curved cabinet doors.

[0051] Similarly, the second elastic component includes a second guide groove 45 opened on the second fixed plate 35, a second fixed shaft 46 is arranged inside the second guide groove 45, a second slider 47 and a second spring 48 are sleeved on the second fixed shaft 46, one side of the second slider 47 is connected to the second spring 48, and the bottom of the second slider 47 is connected to the second support plate 36.

[0052] When the curved cabinet door is placed on the polishing device and is polished, the back polishing assembly connected to the second support plate 6 will be subjected to a reaction force from the cabinet door surface or other components inside the device. This reaction force will be transmitted to the second slider 47 through the second support plate 6, causing the second slider 17 to slide along the second fixed axis 46 in the second guide groove 45. As the second slider 47 slides, the second spring 48 will be compressed or stretched. The second spring 48 always applies elastic force to the second slider 47 to ensure that the back polishing assembly connected to the second support plate 36 can maintain a stable position and state. Due to the elastic effect of the second spring 48, even if the shape, size or force of the cabinet door during the polishing process changes, the back polishing assembly can adaptively adjust its position to maintain a close fit with the cabinet door surface, thereby adapting to the shapes of different curved cabinet doors.

[0053] When the whole device is rotated to Figure 1 —2, when the back grinding assembly and the front grinding assembly of the device are located in the recessed part of the arc-shaped cabinet door, the first spring 44 is in an elastic release state, and the second spring 48 is in an elastic compression state. As the stepper motor 40 drives the device to rotate, the direction and magnitude of the force exerted on the first spring 44 and the second spring 48 also change.

[0054] Both the front grinding assembly and the back grinding assembly include a grinding motor 49 disposed on the first support plate 34 and the second support plate 36. A grinding roller 50 is installed at the output end of the grinding motor 39. The grinding motor 49 drives the grinding roller 50 to grind the side and back of the curved cabinet door.

[0055] First, the curved cabinet door is placed on the polishing workbench 31, and the edge of the curved cabinet door needs to face between the front polishing assembly and the back polishing assembly, and then the front polishing assembly and the back polishing assembly are rotated by the polishing rotating mechanism, so that the curved cabinet door is located between the front polishing assembly and the back polishing assembly, and then the curved cabinet door is fixed by the clamping mechanism, and then the front polishing assembly and the back polishing assembly are started, so that the side and back of the curved cabinet door are polished at the same time, and then after polishing one area, the front polishing assembly and the back polishing assembly are moved to the next area for polishing by the polishing rotating mechanism, and at the same time, the first elastic assembly and the second elastic assembly are adapted to the different curvatures of the curved cabinet door, so that the front polishing assembly and the back polishing assembly are respectively fitted with the side and back of the curved cabinet door, so as to perform polishing. The device can not only adapt to curved cabinet doors of different curvatures, but also can polish the side and back of the curved cabinet door at the same time, thereby improving the efficiency of polishing.

[0056] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A curved cabinet door surface engraving device, characterized in that: A carving machine and a polishing device for processing the surface of an arc-shaped cabinet door are provided. The carving machine comprises a carving workbench (1) and a carving machine body located on the carving workbench (1). A hollow shell (8) is provided at the bottom of the carving workbench (1). A plurality of through holes (3) are provided on the carving workbench (1). A plurality of electromagnets (9) are provided inside the hollow shell (8). A movable rod (10) is passed through the inside of each through hole (3). A bearing plate (11) is fixed to the top of the movable rod (10). The bottom of the movable rod (10) passes through the carving workbench (1) and is provided with an iron plate (12) attracted to the electromagnet (9). The iron plate (12) extends into the inside of the hollow shell (8). A reset spring (13) is sleeved on the movable rod (10). One end of the reset spring (13) is fixed to the bearing plate (11) and the other end acts between the carving workbench (1) to enable the movable rod (10) to be mounted on the carving workbench (1). The polishing device comprises a polishing workbench (31), a polishing rotating mechanism is arranged on the top of the polishing workbench (31), and a front polishing component and a back polishing component are arranged on the top of the rotating end of the polishing rotating mechanism, which can contact the front side and the back of the cabinet door respectively.

2. The curved door surface engraving device according to claim 1, characterized in that: A rubber anti-slip surface is fixed on the upper surface of the carrying plate (11).

3. The curved door surface engraving device according to claim 2, characterized in that: A first connecting plate (32) is fixedly connected to the top of the rotating end of the polishing rotating mechanism; a first fixing plate (33) is fixed on one side of the first connecting plate (32) facing the cabinet door; a first elastic component is arranged on the first fixing plate (33); a first supporting plate (34) is arranged at the telescopic end of the first elastic component; the first supporting plate (34) is arranged on the front polishing component; a third fixing plate (321) is fixed on the top of the first connecting plate (32); a second fixing plate (35) is fixed at the bottom of the third fixing plate (321); a second elastic component is arranged on one side of the second fixing plate (35); a second supporting plate (36) is arranged at the telescopic end of the second elastic component; and the back polishing component is arranged on the second supporting plate (36).

4. The curved door surface engraving device according to claim 3, characterized in that: The first elastic component comprises a first guide groove (41) formed on the first fixing plate (33), a first fixing shaft (42) being fixed inside the first guide groove (41), a first slider (43) and a first spring (44) being sleeved on the first fixing shaft (42), one side of the first slider (43) being connected to the first spring (44), the other end of the first spring (44) acting on the end of the first guide groove (41), and the bottom of the first slider (43) being connected to the first supporting plate (34), so that the front grinding component on the first supporting plate (34) abuts against the cabinet door; The second elastic component comprises a second guide groove (45) formed on the second fixing plate (35); a second fixing shaft (46) is fixed inside the second guide groove (45); a second slider (47) and a second spring (48) are sleeved on the second fixing shaft (46); one side of the second slider (47) is connected to the second spring (48); the other side of the second spring (48) acts on the second guide groove (45); the bottom of the second slider (47) is connected to the second supporting plate (36); and the elastic force of the second spring (48) pushes the back grinding component on the second supporting plate (36) to contact the surface of the cabinet door.

5. The curved door surface engraving device according to claim 4, characterized in that: The front side grinding assembly and the back side grinding assembly both comprise a grinding motor (49) respectively fixed on the first support plate (34) and the second support plate (36), and a grinding roller (50) is fixed to the output end of the grinding motor (49).

6. The device for engraving and processing the surface of a curved cabinet door according to claim 5, characterized in that: The polishing workbench (31) is further provided with a clamping mechanism for fixing the arc-shaped cabinet door, the clamping mechanism comprising four fixing rods (37) fixed to the top of the polishing workbench (31), a positioning cylinder (38) being fixed to the top of each fixing rod (37), a fourth fixing plate (39) being hingedly connected to the telescopic end of the positioning cylinder (38), and a non-slip surface being fixed to a side of each fourth fixing plate (39) facing the cabinet door.

7. The curved door surface engraving device according to claim 1, characterized in that: The polishing rotation mechanism comprises a stepping motor (40) fixed on the polishing workbench (31), wherein the output end of the stepping motor (40) faces vertically upward and is fixedly connected to the first connecting plate (32).

8. The curved cabinet door surface engraving device according to claim 1, characterized in that: The engraving workbench (1) is provided with a pair of parallel first slide grooves (2), a lateral moving assembly is arranged inside the first slide grooves (2), each lateral moving assembly is provided with a first support rod (4), the tops of the two first support rods (4) are connected to a support frame (5), a second slide groove (6) is arranged on the support frame (5), a longitudinal moving assembly is arranged inside the second slide groove (6), a telescopic rotating assembly is arranged on the longitudinal moving assembly, and the engraving machine body (7) is movably fixed to the telescopic rotating assembly; The transverse movement assembly comprises a first motor (14) fixed on the engraving workbench (1); a first threaded rod (15) located inside the first slide groove (2) is installed at the output end of the first motor (14); a first threaded sleeve (16) is sleeved on the first threaded rod (15); the top of the first threaded sleeve (16) is connected to the first support rod (4); the longitudinal movement assembly comprises a second motor (17) arranged on the support frame (5); a second threaded rod (18) located inside the second slide groove (6) is installed at the output end of the second motor (17); a second threaded sleeve (19) is sleeved on the second threaded rod (18); the bottom of the second threaded sleeve (19) is connected to the telescopic rotation assembly.

9. The curved door surface engraving device according to claim 3, characterized in that: The telescopic rotation assembly comprises an electric telescopic rod (20) connected to the second threaded sleeve (19); a third motor (21) is installed at the telescopic end of the electric telescopic rod (20); and an output end of the third motor (21) is connected to the engraving machine body (7).

10. A method for engraving the surface of a curved cabinet door, characterized in that: The curved cabinet door surface engraving processing device as claimed in claim 6 is characterized in that: Step 1: placing the curved cabinet door on the engraving workbench. During the placement process, the surface of the curved cabinet door will contact the supporting plate (11) on the engraving workbench, and the part of the supporting plate (11) that matches the shape of the curved cabinet door will be compressed, so that the supporting plate (11) that supports the curved cabinet door will start to move downward. The compressed supporting plate (11) is fixedly connected to the movable rod (10) at its bottom, so the downward movement of the supporting plate (11) will drive the movable rod (10) to move downward inside the through hole (3) to overcome the elastic force of the return spring (13), and make the iron plate (12) located at the lower end surface of the movable rod (10) contact the electromagnet (9) below. Step 2: energize the plurality of electromagnets (9) in the hollow shell (8) at the bottom of the engraving workbench (1), and the range of the electromagnets (9) energized is large enough to cover the area of ​​the iron plate (12) below the arc-shaped cabinet door. After energization, the iron plate in contact with the electromagnet (9) is firmly adsorbed by the magnetic force of the electromagnet (9), and the unpressed movable rod (10) keeps the iron plate (12) at the lower end thereof from being adsorbed by the electromagnet (9) under the action of the elastic force of the return spring (13). The bearing plate (11) that is not squeezed and moved by the arc-shaped cabinet door will effectively limit and fix the periphery of the arc-shaped cabinet door. Step 3: adding wedges to the lower peripheral side of the curved cabinet door to improve the position of the peripheral edge of the curved cabinet door being limited by the surrounding supporting plate (11); Step 4: The engraving machine body (7) engraves the surface of the curved cabinet door; Step 5: After the engraving is completed, the cabinet door is moved into a polishing device, wherein the polishing device includes a polishing workbench (31), and the edge of the curved cabinet door needs to face between the front polishing assembly and the back polishing assembly, and then the front polishing assembly and the back polishing assembly are rotated by a polishing rotating mechanism, so that the curved cabinet door is located between the front polishing assembly and the back polishing assembly; Step 6: The curved cabinet door is fixed by a clamping mechanism, and then the front polishing assembly and the back polishing assembly are started, and the polishing motor (49) drives the polishing roller (50), so that the side and back of the curved cabinet door are polished at the same time, and then after polishing of one area is completed, the front polishing assembly and the back polishing assembly are moved to the next area for polishing by the polishing rotating mechanism; during polishing, the first elastic assembly and the second elastic assembly can adapt to the different curvatures of the curved cabinet door, so that the front polishing assembly and the back polishing assembly are respectively fitted with the side and back of the curved cabinet door, so as to perform polishing.

Images