A forming device for furniture fitting production

Abstract

This invention belongs to the field of metal sheet pressing and molding technology, specifically a molding device for furniture accessory production. It includes a processing table, a top plate, and a first processing station and a second processing station located below the top plate and between it and the processing table. A molding table slides between the first and second processing stations. A first die is fixedly mounted on one side of the upper surface of the molding table, and a second die is slidably mounted on one side of the first die on the upper surface of the molding table. When the second die and the first die are combined, they form a complete die. Both the second and first dies have ventilation cavities, and multiple ventilation heads are provided on the bottom cavity surfaces of both dies. This invention solves the problem that existing furniture accessory molding devices cannot perform integrated finishing processes such as chamfering, deburring, and secondary extrusion on the blank after a single pressing. Furthermore, it solves the problems of difficult demolding, surface damage to the molded parts, and frequent manual intervention.

Description

Technical Field

[0001] This invention belongs to the field of metal sheet pressing and molding technology, and particularly relates to a molding device for the production of furniture accessories. Background Technology

[0002] In the production of furniture accessories, metal sheets are often pressed and shaped to obtain the required shapes. Currently, conventional forming processes mostly employ single-station, single-stage pressing, which suffers from problems such as easy deformation during part removal, numerous burrs on the edges of through holes, and cumbersome secondary processing steps like manual deburring and chamfering. Therefore, overall production efficiency is low, and the high level of manual intervention makes it difficult to guarantee consistent quality. To address this, most factories now use automated loading and unloading stamping equipment to improve overall production efficiency.

[0003] For example, patent publication number CN116727543B disclosed a stamping die for metal sheet panel furniture. In this technology, the first metal sheet in the storage box is pushed onto the placement plate through the outlet by a pusher. Then, the cylinder is opened, and the piston rod of the cylinder drives the upper die to move upward. At the same time, the first metal sheet is conveyed to the lower die through the conveyor. At this time, the feeding is completed. After the feeding is completed, the conveyor stops working, and the pusher pushes the second metal sheet in the storage box onto the placement plate through the outlet. The piston rod of the cylinder drives the upper die to move downward to stamp the first metal sheet. After the stamping is completed, the piston rod of the cylinder drives the upper die to move upward. At the same time, the second metal sheet on the placement plate is conveyed to the lower die through the conveyor. This process is repeated to achieve automatic feeding and improve production efficiency.

[0004] Existing technologies utilize the coordination of multiple cylinders and a conveyor chain to automate the loading and unloading process during the stamping of furniture parts. While this improves production efficiency, it still has several shortcomings in its overall operation. First, the existing technology only omits the manual loading and unloading process, but the problem of burrs and irregular edges and corners caused by single-station single-pressing of parts has not been solved. Secondary processing steps such as manual deburring and chamfering are still required, resulting in low overall production efficiency and excessive manual intervention, which also makes it impossible to guarantee the overall production quality.

[0005] Secondly, after the existing furniture accessories are formed, the molded parts are often easily embedded in the inner cavity of the lower mold and are difficult to demold automatically. They need to be manually pried out or assisted by secondary vibration, resulting in low demolding efficiency. Frequent manual intervention can easily cause scratches or abnormal deformation on the surface of the accessories. The existing automatic loading and unloading technology cannot reduce the deformation of the molded parts during demolding.

[0006] Finally, in addition to the need for a single pressing and molding process, some existing furniture parts also require secondary processing on their surfaces. For example, some areas require secondary extrusion to form special contours to enhance structural strength or achieve assembly snap-fit ​​functions. Such shapes cannot be achieved through a single pressing process in the current technology and must be placed on other production equipment for secondary processing. This is time-consuming and labor-intensive, and the production quality cannot be guaranteed. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies, this invention provides a molding apparatus for the production of furniture accessories. This invention solves the problem that existing furniture accessory molding apparatuses cannot perform integrated finishing processes such as chamfering, deburring, and secondary extrusion on the blank after a single pressing. Furthermore, it addresses the issues of difficult demolding, surface damage to molded parts, and frequent manual intervention, effectively ensuring the consistency and efficiency of accessory molding.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a molding device for producing furniture accessories, comprising a processing table and a top plate. The top plate is disposed above the processing table, and a first processing station and a second processing station are respectively disposed below the top plate and between the processing table. The first processing station is used for one-time pressing and molding of metal sheets, and the second processing station is used for secondary finishing. A molding table slides between the first processing station and the second processing station. A first die is fixedly disposed on one side of the upper surface of the molding table, and a second die is slidably disposed on one side of the first die on the upper surface of the molding table. When the second die and the first die are combined, a complete die is formed. Both the second die and the first die are provided with ventilation cavities. Multiple ventilation heads are disposed on the bottom cavity surfaces of the second die and the first die on the outside of the ventilation cavities. The multiple ventilation heads can simultaneously spray air outward or draw air inward.

[0009] In a preferred embodiment, the present invention may be further configured as follows: the first processing station includes a first push cylinder fixedly disposed on the top end face of the top plate, the telescopic end of the first push cylinder passes downward through the top plate and is connected to a lifting platform, a punch is fixedly disposed at the bottom of the lifting platform, and a punch is slidably disposed inside the bottom of the punch, the punch being used for forming through holes in accessories.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the second processing station includes a seventh push cylinder fixedly disposed on the top end face of the top plate, the telescopic end of the seventh push cylinder passes downward through the top plate and is connected to a second slide module, the bottom sliding end of the second slide module is connected to a rotary drive module, the rotary drive module is connected to a rotating rod on its rotation output end, and a cutter head is detachably disposed at one bottom end of the rotating rod, and various cutting tools are mounted on the cutter head.

[0011] In a preferred embodiment, the present invention can be further configured as follows: a hollow tube is provided on the end face of the forming table between the first die and the second die, and a buffer seat is fixedly provided at the bottom of the forming table below the hollow tube. A support platform is connected to the elastic telescopic end of the buffer seat, and one end of the top of the support platform extends out of the end face of the hollow tube when the buffer seat is not under force.

[0012] In a preferred embodiment, the present invention can be further configured as follows: a receiving platform is fixedly provided on the bottom outer circular surface of both the first and second concave molds; a positioning tube is fixedly provided on the upper surface of both receiving platforms; a damping spring is connected to one bottom end of the positioning tube; a venting cavity is connected to one top end of the damping spring; the venting cavity slides with the inner wall of the positioning tube; and a positioning rod is provided directly above the bottom end surface of the lifting platform on each positioning tube; the positioning rod slides with the positioning tube.

[0013] In a preferred embodiment, the present invention can be further configured as follows: a lifting plate is slidably disposed on the outside of the positioning tube, two pressure plates are slidably disposed at one bottom end of the lifting plate, a detachable pressure block is disposed at one bottom end of the pressure plate, the pressure block is used to clamp and fix the furniture parts during secondary processing, a vibration detector is disposed between two adjacent pressure plates, and an image acquisition probe is disposed above the vibration detector.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the interior of the support platform is hollowed out, the outer circle of the upper surface of the support platform is beveled and forms a conical angle with the inner circle of the hollow tube, a plurality of dust suction holes are provided on the beveled upper surface of the support platform, a dust suction pipe is connected to the bottom of the support platform, and a dust suction device is connected to the dust suction pipe.

[0015] In a preferred embodiment, the present invention can be further configured as follows: two guide grooves are provided on the end face of the first die near the second die; a guide block that cooperates with the guide groove is provided on one side of the guide groove on the end face of the second die; a connecting pipe head is provided on the end face of the guide block; and a connecting pipe hole that slides with the connecting pipe head is provided on the inner wall of the first die on the outer side of the connecting pipe head.

[0016] In a preferred embodiment, the present invention can be further configured as follows: the upper end face of the blade disc is provided with a plurality of mounting slots, the plurality of mounting slots being used to mount polishing blades and forming blades, the polishing blades being used for chamfering and deburring, the forming blades being used for secondary forming of certain parts of furniture accessories, each mounting slot having a second positioning cone hole in the shape of a cone on its inner wall, the ends of the polishing blades and forming blades being provided with a second positioning cone that mates with them, and shock-absorbing pads being provided on both sides of the second positioning cone hole on the wall of the mounting slot.

[0017] In a preferred embodiment, the present invention may be further configured such that: the second concave mold, the guide block, and the connecting pipe head are provided with vent holes that connect the two vent cavities; the vent holes are used to connect the two vent cavities; and sealing rings are provided on the outer circular surface of the connecting pipe head and the inner circular surface of the connecting pipe hole.

[0018] In summary, compared with existing technologies, the beneficial effects of this solution are as follows: (1) The present invention uses a dual processing station to coordinate processing with a back-and-forth movable die assembly, so that after the furniture parts are pressed and molded, they can be finished in one device without manual transfer to other equipment. This can be done in one device, including chamfering, deburring and secondary extrusion, significantly reducing the frequency of manual intervention, effectively improving production efficiency and ensuring the stability of production quality.

[0019] (2) The present invention uses a structure such as a double-push cylinder to synchronously drive the opening and closing of the first and second concave dies and guide blocks and guide grooves, so that after the furniture parts are processed, the two concave dies can move away from each other, so that the parts can automatically detach from the inner cavity of the lower die, avoiding the risk of surface scratches and structural deformation caused by manual prying or vibration-assisted demolding. In addition, the setting of various guide structures can also ensure the motion accuracy and repeatability of the two concave dies each time they merge, thereby ensuring the consistency and reliability of each processing.

[0020] (3) By setting up ventilation cavities and ventilation heads, the present invention enables furniture accessories to be fixed by negative pressure adsorption based on the conical positioning of the inner cavity of the die itself during the process of single processing and secondary processing or deburring. This keeps the accessories in a stable posture during processing and avoids secondary processing deviations caused by vibration or displacement. After processing, high-pressure gas is evenly sprayed out from multiple positions at the bottom of the accessories, so that when the accessories are demolded, they can be smoothly and completely separated from the inner cavity of the lower die under uniform force at the bottom, achieving non-contact and smooth demolding. In addition, the cooperation between the connecting pipe hole and the connecting pipe used to connect the two ventilation cavities can not only realize the coordinated air supply of the two ventilation cavities, but also further improve the positioning accuracy when the two dies are combined, thus further improving the molding quality.

[0021] (4) By setting up a positioning tube, lifting plate and pressure plate, the positioning tube, which was originally only used to position the punch during a single pressing, can guide and limit the up and down movement of the lifting plate and pressure plate during secondary processing, effectively improving the stability and processing accuracy of furniture parts during secondary processing.

[0022] (5) By designing the support platform in conjunction with the dust extraction hole and dust extraction pipe, the present invention enables the support platform, which was originally only able to buffer and push through-hole waste, to efficiently adsorb and collect the dust and debris generated during the polishing and deburring of the blank, thus avoiding dust accumulation that affects the secondary processing accuracy and equipment operation stability, and reducing manual intervention and improving production efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a three-dimensional view of the die structure; Figure 5 for Figure 3 A three-dimensional sectional view at point AA; Figure 6 for Figure 5 A magnified view of a section at point B in the middle; Figure 7 for Figure 5 A magnified view of a section at point C; Figure 8 for Figure 5 A magnified view of a section at point D; Figure 9 for Figure 2 A three-dimensional sectional view at the EE point; Figure 10 for Figure 2 Planar sectional view at point FF; Figure 11 for Figure 9 A magnified view of a section at point G in the middle; Figure 12 for Figure 10 A magnified view of a section at point H in the middle; Figure 13 for Figure 3 A three-dimensional sectional view at point JJ; Figure 14 This is a 3D view of the cutter head component; Figure 15 for Figure 13 A magnified view of a section at point K; Figure 16 A 3D schematic diagram of furniture accessories; In the diagram: 10. Processing table; 11. Control box; 12. Top plate; 13. First slide module; 14. First push cylinder; 15. First die; 16. Second die; 17. Air source control assembly; 18. Forming table; 19. Support frame; 20. Cutter head; 21. Second push cylinder; 22. Third push cylinder; 23. Fourth push cylinder; 24. Rotary drive module; 25. Second slide module; 26. Switch button; 27. Receiving platform; 28. Positioning tube; 29. ​​Fifth push cylinder; 30. Lifting plate; 31. Image acquisition probe; 32. Vent head; 33. Hollow tube; 34. Vibration detector; 35. Pressure block; 36. Vent port; 37. Pressure plate; Damping. Spring 38, punch 39, lifting platform 40, positioning rod 41, ventilation cavity 42, sixth push cylinder 43, punch 44, irregular groove 45, support platform 46, dust suction hole 47, dust suction pipe 48, damping ring 49, buffer seat 50, forming knife 51, polishing knife 52, ventilation hole 53, guide groove 54, guide block 55, connecting pipe hole 56, connecting pipe head 57, sealing ring 58, mounting groove 59, positioning cone 60, fixing cylinder 61, rotating rod 62, first positioning cone hole 63, second positioning cone hole 64, second positioning cone 65, seventh push cylinder 66, abutment block 67, furniture accessories 68. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] Example 1: Reference Appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 16 A molding apparatus for producing furniture accessories is disclosed. This apparatus primarily presses metal sheets into a bowl-shaped furniture accessory with a through hole at the bottom. This accessory is widely used in various table and chair armrests or chair leg connectors, etc. The approximate final product can be seen in the attached image. Figure 16The specific use of furniture accessory 68 is irrelevant to the content of this application and will not be elaborated further. This molding device specifically includes a processing table 10 and a support frame 19. Multiple support rods and support plates are fixedly installed on the bottom end face of the processing table 10 with bolts to ensure that the processing table 10 does not directly contact the ground and to provide support and fixation for the processing table 10. Support frames 19 are fixedly installed on both sides of the upper end face of the processing table 10. A top plate 12 is fixedly installed on the top end face between the two support frames 19 with bolts. The processing table 10, support frames 19, and top plate 12 constitute the basic frame of this molding device. A first push cylinder 14 and a seventh push cylinder 66 are fixedly installed on the end face of the top plate 12, one at the front and one at the back. The first push cylinder 14 is below the first processing station, mainly used for molding the overall frame of the accessory. The seventh push cylinder 66 is below the second processing station, mainly used for finishing or secondary molding of certain parts of the accessory.

[0026] Further, see attached document. Figure 2 Appendix Figure 3 Appendix Figure 4 and appendix Figure 5 The first push cylinder 14, located at the first processing station, has its telescopic end extending downwards from the end face of the top plate 12. A lifting platform 40 is provided on the telescopic end of the first push cylinder 14 extending downwards from the end face of the top plate 12. A punch 39 is fixedly provided on the bottom end face of the lifting platform 40 by bolt fasteners. The overall shape of the punch 39 matches the shape of the furniture accessory. The seventh push cylinder 66, located at the second processing station, has its telescopic end extending downwards from the end face of the top plate 12. A second slide module 25 is provided on its telescopic end. The second slide module 25 includes a plate fixed to the telescopic end of the seventh push cylinder 66. On the bottom of this plate, there is a platform that can slide laterally. The platform is driven to move by an existing internal drive structure, which is prior art and will not be described in detail in this application. A rotary drive module 24 is fixedly installed on the sliding platform of the second slide module 25. The rotary drive module 24 is also prior art, including a coordinated drive module of a drive motor and a reducer. The drive motor is connected to the input end of the reducer through a coupling. A rotating rod 62 is connected to the output end of the reducer. A cutter head 20 is mounted on the bottom end face of the rotating rod 62. Various processing tools are installed on the cutter head 20.

[0027] Further, see attached document. Figure 1 Appendix Figure 2 and appendix Figure 4A first sliding table module 13 is provided below the top plate 12 and at the upper end face of the processing table 10. The first sliding table module 13 includes a slide rail fixed to the end face of the processing table 10 and multiple slides arranged on the slide rail. A forming table 18 is fixedly arranged on the end face of the slides of the first sliding table module 13. A first cavity mold 15 is fixedly arranged at the upper end face of the forming table 18. A second cavity mold 16 is slidably arranged on one side of the first cavity mold 15 on the end face of the forming table 18. The second cavity mold 16 and the first cavity mold 15 merge together to form a complete cavity mold. The shape of the cavity mold is matched according to the shape of the furniture accessories. The forming table 18 will move back and forth between the two processing stations. Therefore, although the first sliding table module 13 is prior art, this application will not elaborate on it. However, the slide rail stroke of the first sliding table module 13 needs to cover the first processing station and the second processing station to meet the processing requirements. Since the second die 16 is slidably disposed on the end face of the forming table 18, after the part is formed, the second die 16 can move away from the first die 15, thereby forming a gap between the first die 15 and the second die 16 so that the processing personnel can pick it up.

[0028] Specifically, when furniture parts need to be processed and formed, the forming table 18 slides to below the first processing station via the first sliding table module 13. At this time, the second die 16 and the first die 15 merge to form a die. Then, the worker can place the metal sheet to be processed into the die cavity formed by the merger of the first die 15 and the second die 16. Subsequently, the first push cylinder 14 drives the punch 39 downward, pressing the punch 39 into the die cavity, thereby pressing the metal sheet into a bowl shape. Then, the first push cylinder 14 drives the punch 39 upward to reset, and the forming table 18 moves synchronously along the slide rail of the first sliding table module 13 to below the second processing station. At this time, the seventh push cylinder 66 drives the second sliding table module... As the second slide module 25 moves downward, it drives the rotary drive module 24 downward. The rotary drive module 24 then drives the rotating rod 62 and the cutting tool mounted on the cutter head 20 into the inner cavity of the bowl-shaped furniture accessory for secondary finishing. During this process, the seventh push cylinder 66 controls the vertical movement distance of the cutter head 20 and the cutting tool. The drive motor and reducer control module of the rotary drive module 24 adjust the rotation speed of the cutting tool. The second slide module 25 controls the lateral displacement distance of the cutter head 20, allowing the cutting tool to accurately cut into the inner wall of the bowl-shaped accessory, completing processes such as chamfering, deburring, and secondary extrusion forming. After the secondary processing is completed, the forming table 18 returns to the first processing position along the slide rail of the first slide module 13, preparing for the next processing cycle. At this time, the second die 16 simultaneously slides away from the first die 15, fully opening the die cavity, facilitating the automatic ejection or manual removal of the finished bowl-shaped furniture accessory.

[0029] It should be noted that the first push cylinder 14 and the seventh push cylinder 66 are hydraulic push cylinders that can accurately control the stroke but have a large thrust, so as to ensure that the punch 39 and the second slide module 25 apply stable forming pressure to the metal sheet and the cup-shaped parts at different work positions. Furthermore, both sides of the first push cylinder 14 and the seventh push cylinder 66 are equipped with sliding rods and sliding guide sleeves to enhance the guiding stability and repeatability of the push cylinder operation. This is prior art and will not be elaborated on further in this application.

[0030] Further, see attached document. Figure 1 Appendix Figure 2 and appendix Figure 3 This application includes a third push cylinder 22 fixedly installed on one side of the upper end face of the processing table 10. The telescopic end of the third push cylinder 22 is fixedly connected to the side wall of the forming table 18 through a bracket. The third push cylinder 22 is used to drive the forming table 18 to reciprocate between the first processing station and the second processing station along the slide rail of the first slide module 13. A control box 11 is installed on one side wall of the processing table 10. The control box 11 includes various display panels, control buttons, and emergency stop buttons, etc., and internally it is equipped with a PLC controller and various control circuit modules to control the overall operation of the device. The specific control technology and detection technology are all existing technologies and will not be described in detail in this application. Two mutually spaced switch buttons 26 are installed on one side of the end face of the processing table 10. One switch button 26 controls the forming table 18 to move below the first processing station, and the other switch button 26 controls the forming table 18 to move below the second processing station. When both switch buttons 26 are pressed at the same time, the first processing station starts processing; when both switch buttons 26 are pressed at the same time, the second processing station starts processing. During processing, all movements or stops are executed or operated via the control box 11. Therefore, during processing, both hands of the operator must be in contact with the two switch buttons 26 to avoid the other hand coming into contact with the processing device while operating with one hand, thus ensuring the operator's safety.

[0031] Furthermore, see the attached document. Figure 1 Appendix Figure 2 Appendix Figure 9 and attached Figure 11The first die 15 is fixed to the upper end face of the forming table 18 by bolts and fasteners. Two trapezoidal grooves are provided on the lower end face of the forming table 18 below the second die 16. Trapezoidal sliders slide within these grooves, and the two trapezoidal sliders are fixedly connected to the bottom end face of the second die 16 by bolts and fasteners to ensure stable guidance and rigid support between the second die 16 and the end face of the forming table 18 during reciprocating sliding. Two second push cylinders 21 are fixedly installed on one side of the first die 15 on the end face of the forming table 18. The second push cylinders 21 are located on one side of the first die... The first die 15 has two through holes. The telescopic end of the second push cylinder 21 passes through the through hole on the first die 15. After passing through the through hole on the first die 15, the end of the telescopic end of the second push cylinder 21 is fixedly connected to the end face of the second die 16 by bolt fasteners. Both second push cylinders 21 are high-precision electric push cylinders, and the two second push cylinders 21 are controlled by a synchronous circuit or synchronizer. Their telescopic ends are equipped with displacement sensors to realize the synchronous telescopic movement of the two cylinders and drive the second die 16 to slide stably, ensuring that the second die 16 can be positioned to the preset position with high precision each time it opens to one side.

[0032] Furthermore, see the attached document. Figure 10 and appendix Figure 12 To ensure high-precision docking between the first die 15 and the second die 16, the adjacent end faces of the first die 15 and the second die 16 are precision polished. Two inwardly recessed guide grooves 54 are provided on the end face of the first die 15. A guide block 55 with a matching shape is provided on one side of the guide groove 54 on the end face of the second die 16. The guide groove 54 and the guide block 55 have a conical cross-section. During the docking process of the first die 15 and the second die 16, the guide groove 54 and the guide block 55 will form a conical self-centering guide structure. This structure can automatically correct minor assembly deviations during the closing process of the first die 15 and the second die 16, enabling the first die 15 and the second die 16 to complete the closing with high precision.

[0033] In addition, see attached document Figure 4 and appendix Figure 8 A hollow tube 33 is fixedly installed at the bottom of the forming table 18 between the second die 16 and the first die 15. The outer surface of the hollow tube 33 is a smooth cylindrical structure. The hollow tube 33 is located at the center of the entire die between the second die 16 and the first die 15. When the second die 16 and the first die 15 are in contact with each other, the hollow tube 33 will be sandwiched in the middle to provide a central reference for the movement of the second die 16. It should be noted that in this example, a through hole is provided in the middle of the hollow tube 33. The size of the through hole is set according to the size of the through hole in the middle of the furniture accessory. If the furniture accessory does not need to be processed with a through hole, the through hole in the middle of the hollow tube 33 does not need to be set.

[0034] Further, see attached document. Figure 4 Appendix Figure 5 and attached Figure 7 To ensure the accuracy of furniture component molding, this application provides receiving platforms 27 on both outer circular surfaces of the first die 15 and the second die 16. Positioning tubes 28 are fixedly installed on the upper end surface of each receiving platform 27. Positioning rods 41 are fixedly installed on the bottom end surface of the lifting platform 40 directly above each positioning tube 28. The outer diameter of the bottom end of the positioning rod 41 is in sliding fit with the inner diameter of the positioning tube 28. A damping spring 38 is connected to the inner bottom of the positioning tube 28. An abutment block 67 is connected to the top end of the damping spring 38. The abutment block 67 is in sliding fit with the inner surface of the positioning tube 28. In addition, a damping ring is provided on the outer surface of the abutment block 67, which is in sliding fit with the inner surface of the positioning tube 28.

[0035] Specifically, during the process of the lifting platform 40 moving downwards with the punch 39 to press the sheet metal, the two positioning rods 41 move downwards synchronously with the lifting platform 40 and are inserted into the positioning tube 28 in sequence, pushing the abutment block 67 to slide downwards along the inner wall of the positioning tube 28. At this time, the damping ring and the inner surface of the positioning tube 28 generate controllable frictional resistance, giving the lifting platform 40 a buffering and steady-state characteristic during the pressing process, effectively suppressing impact vibration. When the punch 39 completes the pressing action and returns, the abutment block 67 automatically rises back to its initial position under the elastic reset action of the damping spring 38, preparing for the next pressing cycle. During this pressing process, the positioning rods 41 and the positioning tube 28 also play a guiding role, ensuring that the punch 39 does not wobble or tilt during the vertical pressing process.

[0036] Furthermore, see the attached document. Figure 5 Appendix Figure 6 and attached Figure 8 To ensure that the bottom through hole of the furniture accessory can be formed in one step at the first processing station, this application provides a countersunk hole at the bottom of the punch 39. A sixth push cylinder 43 is fixedly installed in the countersunk hole. The sixth push cylinder 43 is a small hydraulic push cylinder with high output pressure. The telescopic end of the sixth push cylinder 43 extends downward and is connected to a punch 44. The size of the punch 44 is set according to the diameter of the through hole. The lower end face of the punch 44 corresponds to the position of the through hole to be processed at the bottom of the furniture accessory, and also corresponds to the middle through hole of the hollow tube 33. Corresponding to each other; a buffer seat 50 is fixedly installed on the end face of the forming table 18 inside the hollow tube 33. The buffer seat 50 includes a cylinder and a rod that slides inside the cylinder. A shock-absorbing spring is connected between the rod and the inside of the cylinder, which is the prior art. A support platform 46 is connected to the top of the rod of the buffer seat 50. A damping ring 49 is provided on the outer circular surface of the support platform 46. The outer circular surface of the damping ring 49 fits against the inner circular surface of the hollow tube 33 and generates frictional resistance to ensure stability when the support platform 46 is pushed downward.

[0037] Specifically, after the punch 39 moves downward and completes the pressing action on the sheet metal, the sixth push cylinder 43 is activated. The telescopic end of the sixth push cylinder 43 drives the punch 44 downward, causing the bottom end face of the punch 44 to contact the bottom surface of the furniture accessory to be processed and apply axial pressure. This causes the material to undergo downward plastic deformation until the punch 44 completely passes through the bottom material of the furniture accessory and enters the through hole of the hollow tube 33, thus forming the bottom through hole of the furniture accessory in one go. During the forming process, the material that is punched off will press against the upper end face of the support table 46 and push the support table 46 downward, causing the shock-absorbing spring inside the buffer seat 50 to be stressed. After the punching is completed, the punch 39 and the punch 44 will return to their original positions upward in sequence. At this time, the pressure applied to the support table 46 disappears, and the shock-absorbing spring inside the buffer seat 50 will elastically return to its original position, thereby pushing the support table 46 upward. This allows the support table 46 to push out the waste material that has been punched off, enabling the workers to remove the waste material in a timely manner and improve processing efficiency.

[0038] Furthermore, see the attached document. Figure 8 The support platform 46 has a hollow cavity inside, and the outer side of the upper end face of the support platform 46 is beveled, so that a conical angle is formed between the bevel of the support platform 46 and the inner circular surface of the hollow tube 33. Multiple dust suction holes 47 are arranged on the bevel of the support platform 46. A dust suction pipe 48 made of flexible material is connected to one end of the bottom cavity of the support platform 46, and the other end of the dust suction pipe 48 extends out of the positioning tube 28 and is connected to the existing dust suction equipment. Referring to the furniture fittings in the second die 16 of the attached drawing, the furniture fittings are generally conical in shape. Therefore, when polishing or deburring them, the dust will flow to the bottom along the conical surface and accumulate inside the hollow tube 33. Since a conical clamp is formed between the support platform 46 and the ventilation cavity 42, the dust will mainly accumulate at this angle. Therefore, the dust collection device outside the suction pipe 48 can be activated during processing, thereby creating a negative pressure airflow at multiple suction holes 47. This efficiently sucks the dust accumulated at the conical angle into the support platform 46 and discharges it through the suction device, thus achieving real-time dust removal during processing and ensuring a clean working environment and the health of operators. It should be noted that when there is no pressure on the top of the support platform 46, the top surface of the support platform 46 will extend a portion beyond the top of the hollow tube 33 to ensure that the waste from the through hole can be pushed out. However, a large portion of the inclined surface of the support platform 46 and the suction holes 47 are still inside the hollow tube 33.

[0039] Furthermore, see the attached document. Figure 13 Appendix Figure 14 and attached Figure 15To enhance the processing adaptability of this device, this application provides multiple mounting slots 59 arranged circumferentially on the end face of the cutter head 20. If the furniture accessory only requires polishing and deburring, for example, at the bottom through hole, a polishing blade 52 can be installed in the mounting slot 59. Except for the assembly part with the mounting slot 59, the rest of the polishing blade 52 can serve as the polishing contact surface. By driving the rotation module 24 to rotate the cutter head 20, the polishing blade 52 can perform circumferential polishing and deburring on the edge of the bottom through hole of the furniture accessory.

[0040] If secondary molding is required for furniture components, such as conical surfaces, please refer to the attached document. Figure 7 There is a concave groove on the conical surface, which cannot be formed by the punch 39 in one step. Therefore, the forming cutter 51 can be installed on the mounting groove 59. The shape of the outer end face of the forming cutter 51 is set according to the concave groove. When the forming table 18 moves to the lower part of the second processing station, the cutter head 20 can move downward and generate high-speed rotation during the movement, thereby driving the forming cutter 51 to rotate quickly. At this time, the seventh push cylinder 66 is used to control the cutter head 20 and the second push cylinder 21 to move up and down, that is, move in the Z-axis direction, while the second slide module 25 controls the cutter head 20 and the second push cylinder 21 to move left and right, that is, move in the X-axis direction. The forming table 18 can move back and forth and can control the die to move in the Y-axis direction. Therefore, XYZ three-axis movement is formed, so that the rapidly rotating forming cutter 51 can contact the surface of the accessory outside the corresponding concave groove, thereby performing precise secondary forming processing. During this process, the outer end face of the forming blade 51 applies appropriate pressure according to the shape of the irregular concave groove to ensure that the material undergoes uniform plastic deformation at the concave groove, thereby completing the forming of the complex structure.

[0041] It should be noted that the specific shapes and sizes of the forming blade 51 and polishing blade 52 in the attached diagram are set according to actual production needs. Within the stroke range, multiple types of blades can be installed simultaneously on the same blade disc 20 to meet the needs of rapid switching between different processes. If furniture parts only require polishing or only require secondary forming, only one type of blade can be installed; the specific usage depends on the actual situation.

[0042] Furthermore, see the attached document. Figure 13 Appendix Figure 14 and attached Figure 15In this application, a fixed cylinder 61 is provided on the upper end face of the cutter head 20. The fixed cylinder 61 is fixedly connected to one bottom end of the rotating rod 62. Bolt holes are provided on the outer circumference of the fixed cylinder 61. During installation, the fixed cylinder 61 is inserted into the outside of the rotating rod 62, and then the fixed cylinder 61 and the rotating rod 62 are fastened together with bolts to ensure that the two maintain structural stability and coaxiality accuracy during high-speed rotation. In this process, a conical positioning cone 60 is provided at the bottom of the fixed cylinder 61, and a first positioning cone hole 63 matching the conical structure at the bottom of the fixed cylinder 61 is provided at the bottom of the rotating rod 62. During the mutual insertion of the rotating rod 62 and the fixed cylinder 61, the conical structures of the fixed cylinder 61 and the first positioning cone hole 63 will guide each other, ensuring that the fixed cylinder 61 and the rotating rod 62 automatically center and eliminate assembly gaps during the insertion process, further improving machining accuracy.

[0043] Furthermore, see the attached document. Figure 14 and attached Figure 15 To improve the fixing effect of the cutting tool on the cutter head 20, this application provides a second positioning cone hole 64 in the shape of a cone on the inner wall of each mounting groove 59. The cutting tool, such as the forming tool 51 or the polishing tool 52, can be provided with a second positioning cone 65 at its end to cooperate with it, so that the cutting tool end and the inner wall of the mounting groove 59 form a cone surface fit, which enhances the radial positioning accuracy and torsional rigidity, and avoids slight wobble or loosening during high-speed rotation. In addition, this application also arranges shock-absorbing pads on both sides of the second positioning cone hole 64. The shock-absorbing pads abut against the cutting tool end, thereby effectively absorbing the micro-vibrations generated by high-speed rotation.

[0044] Example 2: A molding apparatus for producing furniture accessories, based on Embodiment 1, is further improved, as shown in the attached figure. Figure 1 Appendix Figure 4 Appendix Figure 7 and attached Figure 11To ensure the stability of furniture components during processing at the second processing station and improve the efficiency of component removal after processing, this embodiment hollows out the interiors of both the first die 15 and the second die 16 to form ventilation cavities 42. These two ventilation cavities 42 are interconnected when the first die 15 and the second die 16 are joined together. Multiple ventilation heads 32 are arranged on the inner end faces of both the first die 15 and the second die 16, and these ventilation heads 32 are interconnected with the interiors of the ventilation cavities 42. Furthermore, the upper end faces of the ventilation heads 32 are equipped with anti-slip rubber rings. When the board is pressed into the die, the bottom surface of the component will contact the anti-slip rubber rings on the ventilation heads 32. This increases friction and improves stability. Two vents 36 are provided on the outer surface of the first concave mold 15. One vent 36 is used to inject gas into the venting cavity 42, and the other vent 36 is used to extract gas from the venting cavity 42. One-way valves are arranged inside both vents 36 to achieve one-way control of the air pressure inside the venting cavity 42. An air source control component 17 is provided on the top end face of the top plate 12. The air source control component 17 is connected to an external mature air source device and communicates with the two vents 36. By controlling the start and stop of the air source device, the opening and closing of the gas and its injection are controlled.

[0045] Specifically, after the metal sheet is pressed into the die and initially formed, the first die 15 and the second die 16 are in a closed state. The equipment will then draw the gas out of the two ventilation cavities 42 through one of the ventilation ports 36. This causes the multiple ventilation heads 32 on the end faces of the first die 15 and the second die 16 to generate negative pressure adsorption force, making the bottom surface of the formed part tightly adhere to the surface of the anti-slip rubber ring. This effectively suppresses the micro-displacement of the workpiece during the second processing station's rotary polishing or secondary forming, improves the accuracy and surface consistency of the secondary finishing process, and avoids processing deviations caused by workpiece floating.

[0046] After the processing steps of the second processing station are completed, when the forming table 18 moves below the first processing station, the equipment will inject gas into the two ventilation cavities 42 through another vent 36, causing the air pressure inside the multiple ventilation cavities 42 to rise. The high-pressure gas will be ejected outward through multiple vent heads 32, thereby lifting the formed parts from the surface of the vent head 32 and loosening the contact between them and the inner wall of the die. This ensures that when the second die 16 is opened to one side, the parts will not be excessively attached to the inner wall of the first die 15, improving part removal efficiency and operational safety.

[0047] Furthermore, see the attached document. Figure 10 and attached Figure 12A connecting pipe head 57 is provided on the outer end face of each of the two guide blocks 55. A connecting pipe hole 56 is provided on the inner wall of each of the two guide grooves 54. During the docking process of the first die 15 and the second die 16, as the guide blocks 55 and guide grooves 54 are guided and positioned, the connecting pipe head 57 gradually inserts into the connecting pipe hole 56. A sealing ring 58 is provided on both the inner circular surface of the connecting pipe head 57 and the outer circular surface of the connecting pipe hole 56. When the connecting pipe head 57 and the connecting pipe hole 56 dock, the sealing rings 58 are pressed together to generate... Radial preload is applied to achieve high-precision guiding and positioning during the mold closing process of the first die 15 and the second die 16. In addition, a vent hole 53 is provided between the connecting pipe hole 56 and the guide block 55. When the connecting pipe hole 56 and the connecting pipe head 57 are connected, the vent hole 53 will also be in a connected state. The vent hole 53 will connect the ventilation cavity 42 inside the first die 15 and the second die 16 to ensure that the pressure of the air cavities on both sides responds synchronously, thereby maintaining pressure balance during adsorption and ejection, and avoiding uneven mold closing load or workpiece tilting caused by uneven pressure difference.

[0048] Example 3: A molding apparatus for producing furniture accessories, based on Embodiment 1 or 2, with further improvements, see attached figure. Figure 4 and attached Figure 8 To improve the stability of furniture accessories during the second processing, this application provides a lifting plate 30 that is slidably installed above each receiving platform 27 outside the positioning tube 28. The lifting plate 30 can slide up and down along the outer circular surface of the positioning tube 28. Two slide rails are provided on the bottom end face of the lifting plate 30, and sliders are provided on both slide rails. A pressure plate 37 is fixedly connected to the end face of the slider by bolt fasteners. A pressure block 35 is connected to the bottom end of the pressure plate 37 near the die.

[0049] Furthermore, see the attached document. Figure 4 and attached Figure 8 In this application, a fourth push cylinder 23 is fixedly installed on one side of the upper end face of the receiving platform 27. The telescopic end of the fourth push cylinder 23 extends upward and is fixedly connected to the bottom end face of the lifting plate 30. A fifth push cylinder 29 is fixedly installed on the upper end face of the lifting plate 30. The telescopic end of the fifth push cylinder 29 extends away from the die and is connected to a plate. The plate is fixedly connected to the two sliders by rods.

[0050] Specifically, during the secondary processing of the furniture components, the telescopic end of the fifth push cylinder 29 can move towards the die cavity, thereby pushing the plate and rod, and thus pushing the pressure plate 37 to slide along the slide rail towards the die cavity until the pressure block 35 is directly above the furniture component. Subsequently, the telescopic end of the fourth push cylinder 23 moves downward, thereby pulling the lifting plate 30, pressure plate 37, and pressure block 35 downward synchronously, so that the pressure block 35 is pressed against the top surface of the furniture component. This applies downward pressure to the component during the secondary processing, ensuring axial positioning stability during rotary polishing or secondary extrusion, and effectively suppressing warping deformation and local stress concentration caused by top suspension. After processing is completed, the lifting plate 30 is raised upward, and the pressure plate 37 and others slide away from the die cavity to reset, causing the pressure block 35 to detach from the top surface of the component and move to the outside of the second die cavity 16 and the first die cavity 15, so as to ensure that there is no interference during the first pressing process of the die cavity.

[0051] It should be noted that, in the above situation, the positioning tube 28 serves as a guide and limiter, ensuring high stability during the up-and-down movement of the lifting plate 30; while the bottom end face of the pressure block 35 is roughened to increase the friction with the surface of the furniture parts, ensuring that slippage does not occur during the pressing process. In addition, both the fourth push cylinder 23 and the fifth push cylinder 29 are electric push cylinders capable of precisely controlling the stroke and pressure, and displacement sensors are arranged on their extension and retraction ends to provide real-time feedback of extension and retraction stroke data, ensuring displacement accuracy.

[0052] Furthermore, see the attached document. Figure 4 and attached Figure 8 In this embodiment, a vibration detector 34 is installed between two adjacent pressure plates 37 via a connecting plate. The vibration detector 34 can detect the real-time vibration amplitude of the furniture parts during the secondary processing and transmit the vibration signal to the top plate 12. When the vibration amplitude exceeds a preset threshold, it indicates that the processing is abnormal, thereby issuing an alarm and stopping the machine so that the operator can carry out maintenance. A bracket made of damping material is installed outside the vibration detector 34, and an image acquisition probe 31 is installed on the bracket. Since the image acquisition probe 31 is on the vibration detector 34, it will also be in the closest position to the secondary processing during processing. The image acquisition direction of the image acquisition probe 31 is directly facing the surface of the furniture parts to be processed, which can ensure the quality of the acquisition.

[0053] The image acquisition probe 31 can acquire image data of the surface of furniture parts during processing and transmit the acquired image data to the top plate 12 for further analysis of the processing status. If the image data shows obvious defects or inadequate processing on the surface of the furniture parts, the system will automatically adjust the processing parameters, such as adjusting the downward pressure of the seventh push cylinder 66 or changing the rotation speed of the cutter head 20, to ensure that the processing quality meets the expected standards. The damping bracket on the vibration detector 34 can eliminate vibration interference transmitted to the image acquisition probe 31, ensuring the clarity and stability of the images acquired by the image acquisition probe 31.

[0054] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0055] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0056] The foregoing description presents and describes several preferred embodiments of this application. However, as mentioned above, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A molding apparatus for producing furniture accessories, comprising a processing table (10) and a top plate (12), characterized in that, A top plate (12) is provided above the processing table (10). A first processing station and a second processing station are respectively provided below the top plate (12) and between it and the processing table (10). The first processing station is used for pressing and forming the metal sheet once, and the second processing station is used for secondary finishing. A forming table (18) slides between the first processing station and the second processing station. A first die (15) is fixedly provided on one side of the upper end face of the forming table (18). A second cavity (16) is slidably disposed on the upper end face of the forming table (18) on one side. When the second cavity (16) and the first cavity (15) are combined, a complete cavity is formed. Both the second cavity (16) and the first cavity (15) are provided with ventilation cavities (42). Multiple ventilation heads (32) are provided on the bottom cavity surfaces of the second cavity (16) and the first cavity (15) on the outside of the ventilation cavities (42). The multiple ventilation heads (32) can simultaneously spray air outward or draw air inward.

2. The molding apparatus for producing furniture accessories according to claim 1, characterized in that, The first processing station includes a first push cylinder (14) fixedly set on the top end face of the top plate (12). The telescopic end of the first push cylinder (14) passes downward through the top plate (12) and is connected to a lifting platform (40). A punch (39) is fixedly set at the bottom of the lifting platform (40). A punch (44) is also slidably set inside the bottom of the punch (39). The punch (44) is used for forming through holes in accessories.

3. The molding apparatus for producing furniture accessories according to claim 1, characterized in that, The second processing station includes a seventh push cylinder (66) fixedly installed on the top end face of the top plate (12). The telescopic end of the seventh push cylinder (66) passes downward through the top plate (12) and is connected to a second slide module (25). The bottom sliding end of the second slide module (25) is connected to a rotary drive module (24). A rotating rod (62) is connected to the rotation output end of the rotary drive module (24). A cutter head (20) is detachably installed at one end of the bottom of the rotating rod (62). Various cutting tools are mounted on the cutter head (20).

4. The molding apparatus for producing furniture accessories according to claim 1, characterized in that, A hollow tube (33) is provided between the first die (15) and the second die (16) on the end face of the forming table (18). A buffer seat (50) is fixedly provided at the bottom of the forming table (18) below the hollow tube (33). A support platform (46) is connected to the elastic telescopic end of the buffer seat (50). When the buffer seat (50) is not under force, one end of the top of the support platform (46) extends out of the end face of the hollow tube (33).

5. A molding apparatus for producing furniture accessories according to claim 1, characterized in that, A receiving platform (27) is fixedly provided on the bottom outer circular surface of the first die (15) and the second die (16). A positioning tube (28) is fixedly provided on the upper end surface of the two receiving platforms (27). A damping spring (38) is connected to one end of the bottom of the positioning tube (28). A ventilation cavity (42) is connected to one end of the top of the damping spring (38). The ventilation cavity (42) slides with the inner wall of the positioning tube (28). A positioning rod (41) is provided on the bottom end surface of the lifting platform (40) directly above each positioning tube (28). The positioning rod (41) slides with the positioning tube (28).

6. A molding apparatus for producing furniture accessories according to claim 5, characterized in that, The positioning tube (28) is provided with a lifting plate (30) that slides up and down. Two pressure plates (37) are slidably provided at one bottom end of the lifting plate (30). A detachable pressure block (35) is provided at one bottom end of the pressure plate (37). The pressure block (35) is used to clamp and fix the furniture parts during secondary processing. A vibration detector (34) is provided between two adjacent pressure plates (37). An image acquisition probe (31) is provided above the vibration detector (34).

7. A molding apparatus for producing furniture accessories according to claim 4, characterized in that, The support platform (46) is hollow inside. The outer circle of the upper end face of the support platform (46) is beveled and forms a conical angle with the inner circle of the hollow tube (33). Multiple dust suction holes (47) are provided on the beveled upper end face of the support platform (46). A dust suction pipe (48) is connected to the bottom of the support platform (46) and is connected to a dust suction device.

8. A molding apparatus for producing furniture accessories according to claim 1, characterized in that, Two guide grooves (54) are provided on the end face of the first die (15) near the second die (16). A guide block (55) that cooperates with the guide groove (54) is provided on one side of the guide groove (54) on the end face of the second die (16). A connecting pipe head (57) is provided on the end face of the guide block (55). A connecting pipe hole (56) that slides with the connecting pipe head (57) is provided on the inner wall of the first die (15) on the outer side of the connecting pipe head (57).

9. A molding apparatus for producing furniture accessories according to claim 3, characterized in that, The upper surface of the blade disc (20) is provided with multiple mounting slots (59), which are used to mount polishing blades (52) and forming blades (51). The polishing blades (52) are used for chamfering and deburring, and the forming blades (51) are used for secondary forming of furniture accessories. Each mounting slot (59) has a second positioning cone hole (64) in the shape of a cone on its inner wall. The ends of the polishing blades (52) and forming blades (51) are provided with a second positioning cone (65) that cooperates with them. Shock-absorbing pads are provided on both sides of the second positioning cone hole (64) on the wall of the mounting slot (59).

10. A molding apparatus for producing furniture accessories according to claim 8, characterized in that, The second die (16), the guide block (55), and the connecting pipe head (57) are connected to the first die (15) and are provided with vent holes (53). The vent holes (53) are used to connect the two ventilation cavities (42). The outer circular surface of the connecting pipe head (57) and the inner circular surface of the connecting pipe hole (56) are provided with sealing rings (58).

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