Arc-shaped side plate forming die for plywood cabinet body

Abstract

The utility model provides a kind of plywood cabinet's arc side plate forming die, it is related to plywood processing technical field, including: bottom plate, bottom plate top fixedly connected with portal frame, bottom plate is equipped with lower die holder, lower die holder upper side is equipped with upper die holder, lower die holder inside is equipped with lower bending arc plate, upper die holder inside is equipped with upper bending arc plate.This kind of forming die is set by bending arc adjusting mechanism, the radian of lower bending arc plate and upper bending arc plate can be adjusted according to processing demand, so that different radian single board can be processed without replacing mould, greatly enhance practicality, and adopt the principle of whole bending forming after heating softening to single board, the continuity of wood fiber and the overall structure of board in the whole processing process are not damaged.

Description

Technical Field

[0001] This utility model relates to the field of plywood processing technology, specifically a molding die for forming the arc-shaped side panel of a plywood cabinet. Background Technology

[0002] In modern furniture design, streamlined and curved cabinet designs are highly favored for their aesthetic appeal, safety, and ergonomics. Plywood is the core material for furniture, and its bending and forming technology is key to achieving such designs, mainly using lamination bending and grooving bending methods.

[0003] Although lamination bending produces a stable and high-strength finished product, it has significant drawbacks. A single mold can only correspond to one fixed curvature and size. Product transformation requires the manufacture of new molds, which is costly and time-consuming, and cannot meet the customized market demand for small batches and multiple varieties.

[0004] The slotting bending method achieves bending by cutting a V-shaped groove in the sheet material and reducing the material thickness. Its advantage is that it does not require molds and is highly flexible. However, its fatal flaw is that it severely damages the continuity and overall mechanical structure of the sheet material, resulting in a significant reduction in the load-bearing capacity and impact resistance of the component. Utility Model Content

[0005] The purpose of this application is to provide a molding die for the arc-shaped side panel of a plywood cabinet, so as to solve the technical problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide an arc-shaped side panel forming mold for a plywood cabinet, comprising: a base plate, a gantry frame fixedly connected to the top of the base plate, a lower mold base provided on the base plate, an upper mold base provided above the lower mold base, a lower curved plate provided inside the lower mold base, and an upper curved plate provided inside the upper mold base;

[0007] A curvature adjustment mechanism is provided on the upper mold base and the lower mold base respectively, and is used to adjust the curvature of the lower curvature plate and the upper curvature plate. The curvature adjustment mechanism includes: a moving groove, a bidirectional threaded screw, a separator block, a moving block and a connecting plate.

[0008] Furthermore, both the top of the lower curved plate and the bottom of the upper curved plate are provided with moving grooves. Each moving groove is provided with a bidirectional threaded screw. Each bidirectional threaded screw has a partition block at its middle position. The partition block is connected to the moving groove. Moving blocks are threaded onto the two opposite threads on the outside of the bidirectional threaded screw. Connecting plates are fixedly connected to opposite sides of the lower curved plate. The two connecting plates are respectively connected to the top of the two moving blocks below. The opposite sides of the upper curved plate are respectively connected to the bottom of the two moving blocks above.

[0009] Furthermore, cavities are provided at one end of the upper mold base and the lower mold base near the moving groove, one end of the bidirectional threaded screw extends into the cavity, and a worm gear is fixedly installed at one end of the bidirectional threaded screw.

[0010] Furthermore, a worm gear is rotatably connected between the inner walls of opposite sides of the cavity, the worm gear meshes with the worm wheel, and one end of the worm gear's rotating shaft extends to the outside and is fixedly connected to a servo motor.

[0011] Furthermore, two pairs of guide rods are fixedly installed between the top of the gantry frame and the top of the base plate, and mounting plates are slidably connected to the outside of the two pairs of guide rods. The upper mold base is fixedly installed on the bottom of the mounting plate, and a hydraulic cylinder is fixedly installed on the top of the gantry frame. The output end of the bottom of the hydraulic cylinder is connected to the top of the mounting plate.

[0012] Furthermore, the top of the base plate has three guide grooves, and a linear guide rail is fixedly installed inside the guide groove in the middle. The lower mold base is installed on the moving platform of the linear guide rail.

[0013] Furthermore, each of the lower mold bases has symmetrically distributed sliders fixedly connected to its bottom, and slide rails are fixedly installed inside the guide grooves on both sides. The sliders are slidably connected to the slide rails, and limit plates are fixedly installed at opposite ends of the guide grooves.

[0014] The beneficial effects of this utility model are:

[0015] The advantages of this utility model are that, through the set curvature adjustment mechanism, the curvature of the lower and upper curvature plates can be adjusted according to the processing requirements, so that veneers with different curvatures can be processed without changing the mold, which greatly enhances the practicality. Moreover, the principle of heating and softening the veneer and then bending it into shape as a whole is adopted, so that the continuity of wood fibers and the overall structure of the board are not damaged during the entire processing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the upper curved plate structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the downward-bending arc plate structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the slide rail structure of this utility model.

[0022] Figure 6 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0023] The following are the labeling elements in the figure:

[0024] 1. Base plate; 11. Gantry frame; 12. Lower mold base; 13. Upper mold base; 14. Lower bending arc plate; 15. Upper bending arc plate; 2. Moving groove; 21. Two-way threaded screw; 22. Separator block; 23. Moving block; 24. Connecting plate; 25. Cavity; 26. Worm gear; 27. Worm; 28. Servo motor; 3. Guide rod; 31. Mounting plate; 32. Hydraulic cylinder; 4. Guide groove; 41. Linear guide rail; 42. Slider; 43. Slide rail; 44. Limit plate. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] As attached Figure 1 and Figure 2 The mold for forming an arc-shaped side panel of a plywood cabinet shown includes: a base plate 1, a gantry frame 11 fixedly connected to the top of the base plate 1, a lower mold base 12 on the base plate 1, an upper mold base 13 above the lower mold base 12, a lower bending arc plate 14 inside the lower mold base 12, and an upper bending arc plate 15 inside the upper mold base 13; and a curvature adjustment mechanism, which is respectively provided on the upper mold base 13 and the lower mold base 12, for adjusting the curvature of the lower bending arc plate 14 and the upper bending arc plate 15.

[0028] In the process of processing curved plywood, the veneer is first heated to soften the wood fibers. Then, the veneer is placed on the upper mold base 13. Next, the upper mold base 13 moves down to press the veneer with the upper bending plate 15, bending the veneer until it fits against the lower bending plate 14. The upper bending plate 15 applies pressure to keep the veneer in a curved shape. After the veneer cools, the wood fibers harden and it remains curved, thus completing the veneer bending process. Multiple curved veneers are glued together to form a curved plywood. The curvature of the lower bending plate 14 and the upper bending plate 15 can be adjusted by the curvature adjustment mechanism to process veneers with the required curvature.

[0029] As shown in the attached figure Figure 3 , Figure 4 and Figure 6 As shown, the curvature adjustment mechanism includes: a moving groove 2, a bidirectional threaded screw 21, a partition block 22, a moving block 23, and a connecting plate 24. Moving grooves 2 are provided at the top of the lower curvature plate 14 and the bottom of the upper curvature plate 15. A bidirectional threaded screw 21 is provided inside each moving groove 2. A partition block 22 is provided at the middle of each bidirectional threaded screw 21, and the partition block 22 is connected to the moving groove 2. Moving blocks 23 are threaded onto the two oppositely oriented threads on the outside of the bidirectional threaded screw 21. Connecting plates 24 are fixedly connected to opposite sides of the lower curvature plate 14. Plate 24 is connected to the top of the two lower movable blocks 23 respectively. The upper curved plate 15 is connected to the bottom of the two upper movable blocks 23 respectively on both sides. Cavities 25 are opened at the end of the upper mold base 13 and the lower mold base 12 near the movable groove 2. One end of the bidirectional threaded screw 21 extends into the cavity 25, and a worm gear 26 is fixedly installed at one end of the bidirectional threaded screw 21. A worm 27 is rotatably connected between the inner walls of the cavity 25 on both sides. The worm 27 is meshed with the worm gear 26. One end of the rotating shaft of the worm 27 extends to the outside and is fixedly connected to a servo motor 28.

[0030] Specifically: When adjusting the curvature of the lower curved plate 14 and the upper curved plate 15, two servo motors 28 are activated to rotate synchronously and the same number of revolutions. The servo motors 28 drive the worm gear 27 to rotate, which in turn meshes with the worm wheel 26, thereby driving the bidirectional threaded screw 21 to rotate. The bidirectional threaded screw 21 meshes with two moving blocks 23, thus driving the two moving blocks 23 to move in opposite directions. By controlling the rotation direction of the servo motors 28, the relative or opposite movement of the two moving blocks 23 can be controlled. The lower curved plate 14 is connected to the two moving blocks 23 below it via a connecting plate 24. The top two sides of the upper curved plate 15 are respectively connected to the bottom of the two moving blocks 23 above. When the two moving blocks 23 move relative to each other, they drive the two ends of the lower curved plate 14 and the upper curved plate 15 to move closer together, so that the curvature of the lower curved plate 14 and the upper curved plate 15 becomes smaller. When the two moving blocks 23 move in opposite directions, the two ends of the lower curved plate 14 and the upper curved plate 15 separate to the sides, so that the curvature of the lower curved plate 14 and the upper curved plate 15 becomes larger. After the adjustment is completed, the two servo motors 28 stop working. The meshing characteristic of the worm 27 and the worm wheel 26 can prevent the bidirectional threaded screw 21 from rotating, thereby fixing the adjusted curvature.

[0031] In a preferred embodiment, two pairs of guide rods 3 are fixedly installed between the top of the inner part of the gantry frame 11 and the top of the base plate 1. The two pairs of guide rods 3 are slidably connected to the outside of the mounting plate 31. The upper mold base 13 is fixedly installed at the bottom of the mounting plate 31. A hydraulic cylinder 32 is fixedly installed at the top of the gantry frame 11. The output end of the bottom of the hydraulic cylinder 32 is connected to the top of the mounting plate 31.

[0032] Furthermore, when the output end of the hydraulic cylinder 32 pushes out, it pushes the mounting plate 31 to move downward. The mounting plate 31 moves downward along the outside of the two pairs of guide rods 3, thereby guiding the mounting plate 31 so that the upper curved plate 15 accurately enters the lower mold base 12. The single plate is bent by the upper curved plate 15. When the output end of the hydraulic cylinder 32 retracts, it drives the mounting plate 31 to move upward, so that the upper curved plate 15 is removed from the lower mold base 12.

[0033] As shown in the attached figure Figure 1 , Figure 2 and Figure 5 As shown, the top of the base plate 1 has three guide grooves 4. A linear guide rail 41 is fixedly installed inside the guide groove 4 in the middle. The lower mold base 12 is installed on the moving platform of the linear guide rail 41. A symmetrically distributed slider 42 is fixedly connected to the bottom of the lower mold base 12. A slide rail 43 is fixedly installed inside the guide grooves 4 on both sides. The slider 42 is slidably connected to the slide rail 43. Limit plates 44 are fixedly installed at opposite ends of the guide grooves 4.

[0034] Specifically: When placing a single board, the lower mold base 12 is moved out of the gantry 11 by the linear guide rail 41 until it touches the limit switch on the front limit plate 44, at which point the linear guide rail 41 stops working. Then, the single board is placed on the lower mold base 12, and the lower mold base 12 is moved back into the gantry 11 by the linear guide rail 41 until it touches the limit switch on the back limit plate 44, at which point the linear guide rail 41 stops working. When removing the single board, the lower mold base 12 is also moved out of the gantry 11 in the same way. This is to avoid injury to the operator caused by the downward pressure of the curved plate 14 during loading and unloading. When the lower mold base 12 moves, it drives the slider 42 to move along the outside of the slide rail 43, which serves as a guide and allows the lower mold base 12 to move smoothly.

[0035] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A forming mold for curved side panels of a plywood cabinet body, characterized by, include: A base plate (1) is fixedly connected to a gantry frame (11) on the top of the base plate (1). A lower mold base (12) is provided on the base plate (1). An upper mold base (13) is provided above the lower mold base (12). A lower curved plate (14) is provided inside the lower mold base (12). An upper curved plate (15) is provided inside the upper mold base (13). The curvature adjustment mechanism is respectively provided on the upper mold base (13) and the lower mold base (12) for adjusting the curvature of the lower curvature plate (14) and the upper curvature plate (15). The curvature adjustment mechanism includes: a moving groove (2), a bidirectional threaded screw (21), a separator (22), a moving block (23), and a connecting plate (24).

2. The curved side panel forming mold for plywood cabinet bodies of claim 1, wherein, The lower curved plate (14) has a moving groove (2) at its top and the upper curved plate (15) has a moving groove (2) at its bottom. The moving groove (2) has a bidirectional threaded screw (21) inside. The bidirectional threaded screw (21) has a partition block (22) at its middle position. The partition block (22) is connected to the moving groove (2). The two sections of the bidirectional threaded screw (21) with opposite directions are threaded with moving blocks (23). The lower curved plate (14) has connecting plates (24) fixedly connected to its opposite sides. The two connecting plates (24) are connected to the top of the two moving blocks (23) below. The upper curved plate (15) has connecting plates (23) fixedly connected to the bottom of the two moving blocks (23) above.

3. The curved side panel forming mold for plywood cabinet bodies of claim 2, wherein, Both the upper mold base (13) and the lower mold base (12) have cavities (25) at one end near the moving groove (2). One end of the bidirectional threaded screw (21) extends into the cavity (25), and a worm gear (26) is fixedly installed at one end of the bidirectional threaded screw (21).

4. The curved side panel forming mold for plywood cabinet bodies of claim 3, wherein, A worm gear (27) is rotatably connected between the inner walls of the cavity (25) on both sides. The worm gear (27) is meshed with the worm wheel (26). One end of the rotating shaft of the worm gear (27) extends to the outside and is fixedly connected to a servo motor (28).

5. The curved side panel forming mold for plywood cabinet bodies of claim 1, wherein, Two pairs of guide rods (3) are fixedly installed between the top of the gantry frame (11) and the top of the base plate (1). The two pairs of guide rods (3) are slidably connected to the outside of the mounting plate (31). The upper mold base (13) is fixedly installed at the bottom of the mounting plate (31). A hydraulic cylinder (32) is fixedly installed at the top of the gantry frame (11). The output end of the bottom of the hydraulic cylinder (32) is connected to the top of the mounting plate (31).

6. The curved side panel forming mold for plywood cabinet bodies of claim 1, wherein, The bottom plate (1) has three guide grooves (4) on its top. A linear guide rail (41) is fixedly installed inside the guide groove (4) in the middle. The lower mold base (12) is installed on the moving platform of the linear guide rail (41).

7. The curved side panel forming mold for plywood cabinet bodies of claim 6, wherein, The bottom of the lower mold base (12) is fixedly connected with symmetrically distributed sliders (42), and the guide grooves (4) on both sides are fixedly installed with slide rails (43). The sliders (42) are slidably connected to the slide rails (43), and the guide grooves (4) are fixedly installed with limit plates (44) at opposite ends.

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