A metal product processing indentation machine

Abstract

The utility model relates to a metal product processing indentation machine, and relates to metal product processing device field, including base, C type frame, hydraulic assembly and lower die holder, base is fixedly connected with C type frame, C type frame is fixedly connected with hydraulic assembly, lower die holder is fixedly connected with base, be equipped with collaborative type anti -sticking mould pressure -equalizing down -pressing part on the hydraulic assembly, collaborative type anti -sticking mould pressure -equalizing down -pressing part includes down -pressing plate, upper die holder, collaborative type anti -sticking mould assembly and pressure -equalizing assembly, hydraulic assembly is fixedly connected with down -pressing plate, pressure -equalizing assembly is connected with down -pressing plate, pressure -equalizing assembly is connected with upper die holder, be equipped with horizontal sliding slot on upper die holder, collaborative type anti -sticking mould assembly is connected with horizontal sliding slot slidingly, collaborative type anti -sticking mould assembly is connected with the side of down -pressing plate, beneficial effect: the pressure distribution caused by C type frame single cylinder drive has avoided ununiformity, thereby improved the evenness of indentation depth and overall definition.

Description

Technical Field

[0001] This utility model relates to the technical field of metal product processing equipment, and in particular to a metal product processing indentation machine. Background Technology

[0002] As is well known, in the manufacturing of sheet metal products, such as appliance panels, elevator decorations, and signs, it is often necessary to use an embossing process to press logos, textures, or functional patterns onto their surfaces in order to achieve brand recognition, aesthetic enhancement, or increased rigidity.

[0003] Chinese patent CN221694946U describes a metal product indentation device, comprising an indentation worktable, a base rod, an edge support rod, and an indentation assembly. A conveying assembly is mounted on the side of the indentation worktable, and the conveying assembly is connected to a fixing assembly. The fixing assembly is used to clamp the metal product. However, in actual use, the following problems still exist:

[0004] C-frame creasing machines are widely used for creasing thin metal sheet products because their open operating space on three sides facilitates mold installation and workpiece loading and unloading. However, this structural characteristic also determines that they usually adopt a single hydraulic cylinder drive. Due to the C-shaped opening structure, uneven pressure distribution on the workpiece on the worktable is easily caused during single-point pressure application, resulting in inconsistent creasing depth and reduced clarity. At the same time, when creasing under uneven pressure, the workpiece will experience excessive micro-mechanical engagement and adsorption with the mold cavity in areas of higher pressure. This causes the workpiece to easily adhere to the upper mold during the pressure relief return stroke. This sticking phenomenon damages the workpiece surface and affects the clarity of the creasing.

[0005] Therefore, an indentation machine for metal product processing is proposed. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a metal product processing embossing machine.

[0007] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0008] A metal product embossing machine includes a base, a C-shaped frame, a hydraulic assembly, and a lower die base. The upper surface of the base is fixedly connected to the bottom end of the C-shaped frame, and the top end of the C-shaped frame is fixedly connected to the fixed end of the hydraulic assembly. The lower die base is located below the hydraulic assembly and fixedly connected to the upper surface of the base. The hydraulic assembly is provided with a cooperative anti-sticking die equalizing pressure pressing component. The cooperative anti-sticking die equalizing pressure pressing component includes a lower pressure plate, an upper die base, a cooperative anti-sticking die assembly, and an equalizing component. The pressing end of the hydraulic assembly is fixedly connected to the upper surface of the lower pressure plate, the top end of the equalizing component is connected to the lower surface of the lower pressure plate, and the bottom end of the equalizing component is connected to the upper surface of the upper die base. The upper die base is provided with a horizontal sliding groove located outside the lower pressure plate. The movable end of the cooperative anti-sticking die assembly is slidably connected to the inner wall of the horizontal sliding groove through a sliding member, and the fixed end of the cooperative anti-sticking die assembly is connected to the side of the lower pressure plate.

[0009] The pressure equalization assembly comprises several components, which are evenly distributed on the lower pressure plate. Each pressure equalization assembly includes a sliding rod, a limiting block, and a preload spring. The lower pressure plate has a sliding hole. The bottom end of the sliding rod is fixedly connected to the upper surface of the upper mold base. The top end of the sliding rod passes through the sliding hole and is fixedly connected to the lower surface of the limiting block. The lower surface of the limiting block contacts the upper surface of the lower pressure plate. The sliding rod is slidably connected to the inner wall of the sliding hole. The upper surface of the upper mold base is connected to the lower surface of the lower pressure plate through the preload spring sleeved on the sliding rod.

[0010] Two collaborative anti-sticking mold components are provided, and the two collaborative anti-sticking mold components are symmetrically distributed on both sides of the lower pressure plate. Each collaborative anti-sticking mold component includes a sliding block, an anti-sticking mold component, and a collaborative pushing component. The sliding block is located in the horizontal sliding groove and is slidably connected to the inner wall of the horizontal sliding groove through the sliding component. The sliding end of the collaborative pushing component is connected to the upper surface of the sliding block, the fixed end of the collaborative pushing component is connected to the side of the lower pressure plate, and the anti-sticking mold component is connected to the lower surface of the sliding block.

[0011] The cooperating pusher includes a rotating bracket, a rotating shaft, a horizontal connecting rod, a vertical connecting rod, and an L-shaped connecting rod. The L-shaped connecting rod is composed of a horizontal rod portion and a vertical rod portion. There are two rotating brackets, which are symmetrically distributed on both sides of the horizontal sliding groove. The middle part of the rotating shaft is fixedly connected to the L-shaped connecting rod, and the rotating shaft is located at the connection between the horizontal rod portion and the vertical rod portion of the L-shaped connecting rod. The two ends of the rotating shaft are rotatably connected to the sides of the two rotating brackets, respectively. The horizontal rod portion has a horizontal-vertical slot, and the vertical rod portion has a vertical slot. One end of the horizontal connecting rod is fixedly connected to the side of the lower pressure plate, and the other end of the horizontal connecting rod is hinged to the horizontal rod portion through a pin located in the horizontal-vertical slot. The bottom end of the vertical connecting rod is fixedly connected to the upper surface of the sliding block, and the top end of the vertical connecting rod is hinged to the vertical rod portion through a pin located in the vertical slot.

[0012] The anti-sticking component includes a pre-pressed floating block and a floating spring. The lower surface of the sliding block is provided with a sliding groove. The top end of the pre-pressed floating block is located in the sliding groove and is slidably connected to the inner wall of the sliding groove. The upper surface of the pre-pressed floating block is connected to the top of the inner wall of the sliding groove through the floating spring located in the sliding groove.

[0013] The floating springs are provided in several quantities and are evenly distributed in the sliding groove.

[0014] The voltage equalization components are provided in at least four, and the number of voltage equalization components is even.

[0015] Compared with the prior art, this utility model has the following beneficial effects: Pressure self-balancing is achieved through the cooperation of the lower pressure plate, pre-pressure spring, sliding rod, and upper mold base, avoiding uneven pressure distribution caused by single-cylinder drive of the C-type frame, thereby improving the uniformity and overall clarity of the indentation depth; the cooperation of the lower pressure plate and L-shaped connecting rod in linkage with the pre-pressure floating block generates a pair of opposing, horizontally inward frictional forces on the workpiece, avoiding indentation rebound and contour deformation caused by elastic recovery stress release during the pressure relief stage, thus improving the forming accuracy and clarity of the indentation; by continuously applying downward pushing force to the workpiece through the pre-pressure floating block during the demolding stage, surface scratches caused by the workpiece adhering to the upper mold are avoided, improving the clarity of the indentation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the collaborative anti-sticking mold pressure equalization and pressing component of this utility model;

[0018] Figure 3This is a three-dimensional structural diagram of the collaborative anti-sticking mold pressure equalization and pressing component of this utility model, viewed from below.

[0019] Figure 4 This is a cross-sectional structural diagram of the sliding rod of this utility model;

[0020] Figure 5 This is a frontal cross-sectional view of the present invention.

[0021] Figure 6 This utility model Figure 2 A magnified structural diagram of point A is shown below;

[0022] Figure 7 This utility model Figure 5 A magnified structural diagram of point B is shown.

[0023] 1. Base; 2. C-shaped frame; 3. Hydraulic components; 4. Lower mold base; 5. Lower pressure plate; 6. Upper mold base; 7. Horizontal sliding groove; 8. Sliding rod; 9. Limiting block; 10. Preload spring; 11. Sliding hole; 12. Sliding block; 13. Rotating bracket; 14. Rotating shaft; 15. Horizontal connecting rod; 16. Longitudinal connecting rod; 17. L-shaped connecting rod; 18. Horizontal bar section; 19. Longitudinal bar section; 20. Horizontal and vertical slots; 21. Vertical slots; 22. Preload floating block; 23. Floating spring; 24. Sliding groove; 25. Cooperative anti-sticking mold equalizing pressure pressing component. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0025] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, in part of which will be obvious from the description or may be learned by practice of the invention.

[0026] like Figure 1-3As shown, a metal product embossing machine includes a base 1, a C-shaped frame 2, a hydraulic assembly 3, and a lower die base 4. The upper surface of the base 1 is fixedly connected to the bottom end of the C-shaped frame 2, and the top end of the C-shaped frame 2 is fixedly connected to the fixed end of the hydraulic assembly 3. The lower die base 4 is located below the hydraulic assembly 3 and fixedly connected to the upper surface of the base 1. The hydraulic assembly 3 is provided with a cooperative anti-sticking die equalizing pressure pressing component 25, which includes a lower pressure plate 5, an upper die base 6, and a cooperative... The anti-sticking mold assembly and the pressure equalization assembly are as follows: the lower end of the hydraulic assembly 3 is fixedly connected to the upper surface of the lower pressure plate 5; the top end of the pressure equalization assembly is connected to the lower surface of the lower pressure plate 5; the bottom end of the pressure equalization assembly is connected to the upper surface of the upper mold base 6; the upper mold base 6 is provided with a horizontal sliding groove 7, and the horizontal sliding groove 7 is located on the outside of the lower pressure plate 5; the movable end of the cooperative anti-sticking mold assembly is slidably connected to the inner wall of the horizontal sliding groove 7 through a sliding member; and the fixed end of the cooperative anti-sticking mold assembly is connected to the side of the lower pressure plate 5.

[0027] like Figure 2 and Figure 4 As shown, several pressure equalization components are provided and are evenly distributed on the lower pressure plate 5. Each pressure equalization component includes a sliding rod 8, a limiting block 9, and a preload spring 10. The lower pressure plate 5 is provided with a sliding hole 11. The bottom end of the sliding rod 8 is fixedly connected to the upper surface of the upper mold base 6, and the top end of the sliding rod 8 passes through the sliding hole 11 and is fixedly connected to the lower surface of the limiting block 9. The lower surface of the limiting block 9 is in contact with the upper surface of the lower pressure plate 5. The sliding rod 8 is slidably connected to the inner wall of the sliding hole 11. The upper surface of the upper mold base 6 is connected to the lower surface of the lower pressure plate 5 through the preload spring 10 sleeved on the sliding rod 8.

[0028] like Figure 2 , Figure 3 and Figure 5 As shown, there are two cooperative anti-sticking mold components, which are symmetrically distributed on both sides of the lower pressure plate 5. The cooperative anti-sticking mold component includes a sliding block 12, an anti-sticking mold component, and a cooperative pushing component. The sliding block 12 is located in the horizontal sliding groove 7 and is slidably connected to the inner wall of the horizontal sliding groove 7 through the sliding component. The sliding end of the cooperative pushing component is connected to the upper surface of the sliding block 12, the fixed end of the cooperative pushing component is connected to the side of the lower pressure plate 5, and the anti-sticking mold component is connected to the lower surface of the sliding block 12.

[0029] like Figure 2-7As shown, the cooperating pusher includes a rotating bracket 13, a rotating shaft 14, a horizontal connecting rod 15, a vertical connecting rod 16, and an L-shaped connecting rod 17. The L-shaped connecting rod 17 is composed of a horizontal rod portion 18 and a vertical rod portion 19. Two rotating brackets 13 are provided, and the two rotating brackets 13 are symmetrically distributed on both sides of the horizontal sliding groove 7. The middle part of the rotating shaft 14 is fixedly connected to the L-shaped connecting rod 17, and the rotating shaft 14 is located at the connection between the horizontal rod portion 18 and the vertical rod portion 19 of the L-shaped connecting rod 17. The two ends of the rotating shaft 14 are... The two rotating brackets 13 are rotatably connected to each other. The horizontal rod 18 is provided with a horizontal slot 20, and the vertical rod 19 is provided with a vertical slot 21. One end of the horizontal connecting rod 15 is fixedly connected to the side of the lower pressure plate 5. The other end of the horizontal connecting rod 15 is hinged to the horizontal rod 18 through a pin located in the horizontal slot 20. The bottom end of the vertical connecting rod 16 is fixedly connected to the upper surface of the sliding block 12. The top end of the vertical connecting rod 16 is hinged to the vertical rod 19 through a pin located in the vertical slot 21.

[0030] like Figure 3 , Figure 5 and Figure 7 As shown, the anti-sticking mold includes a pre-pressed floating block 22 and a floating spring 23. The lower surface of the sliding block 12 is provided with a sliding groove 24. The top of the pre-pressed floating block 22 is located in the sliding groove 24 and is slidably connected to the inner wall of the sliding groove 24. The upper surface of the pre-pressed floating block 22 is connected to the top of the inner wall of the sliding groove 24 through the floating spring 23 located in the sliding groove 24.

[0031] like Figure 7 As shown, there are several floating springs 23, and the floating springs 23 are evenly distributed in the sliding groove 24.

[0032] like Figure 2 As shown, there are at least four voltage equalization components, and the number of voltage equalization components is even.

[0033] The work process is as follows:

[0034] S1, during use, the workpiece to be indented is fixed on the lower die seat 4 on the base 1. The hydraulic assembly 3 on the C-shaped frame 2 is activated. The lower pressure end of the hydraulic assembly 3 pushes the lower pressure plate 5 downward. The lower pressure plate 5 transmits pressure to the upper die seat 6 through the evenly distributed pre-pressure springs 10. The upper die seat 6 achieves pressure self-balancing through the slight floating of the sliding rod 8 within the sliding hole 11, ensuring that the pressure is evenly transmitted to the workpiece for indentation. During this process, the pre-pressure floating block 22, under the action of the floating spring 23, contacts the workpiece surface before the upper die seat 6, applying pre-pressure to the workpiece. At the same time, the cross link 15 fixed to the side of the lower pressure plate 5 descends accordingly. The sliding of the pin in the horizontal slot 20 pulls the horizontal bar 18 of the L-shaped connecting rod 17, forcing the L-shaped connecting rod 17 to rotate around the rotating shaft 14. The rotation of the L-shaped connecting rod 17, through the vertical slot 21 on the vertical bar 19 and the pin, pushes the vertical connecting rods 16 on both sides and the sliding block 12 to slide outward in the horizontal sliding groove 7, so that the pre-pressure floating block 22 slides outward in close contact with the workpiece surface, which plays the role of flattening the workpiece. The pressure self-balancing is achieved through the cooperation of the lower pressure plate 5, the pre-pressure spring 10, the sliding rod 8 and the upper mold base 6, avoiding the uneven pressure distribution caused by the single-cylinder drive of the C-type frame 2, thereby improving the uniformity of the indentation depth and the overall clarity.

[0035] S2, when the indentation is completed and pressure is released, the lower pressure plate 5 moves upward under the drive of the hydraulic component 3. The rise of the lower pressure plate 5 drives the L-shaped connecting rod 17 to rotate in the opposite direction through the horizontal connecting rod 15. The reverse rotation of the L-shaped connecting rod 17 drives the two sliding blocks 12 to slide towards the center in the horizontal sliding groove 7 through the longitudinal connecting rod 16. At this time, the pre-pressed floating block 22 is pressed against the surface of the workpiece under the action of the floating spring 23, thereby generating a pair of opposing, horizontally inward frictional forces between the block and the workpiece. This frictional force constrains the elastic recovery deformation of the workpiece from the center outward during pressure release, so that the formed indentation can be stably maintained, thereby ensuring the clarity of the indentation. Through the cooperation of the lower pressure plate 5 and the L-shaped connecting rod 17, the pre-pressed floating block 22 generates a pair of opposing, horizontally inward frictional forces on the workpiece, avoiding the indentation rebound and contour deformation caused by the release of elastic recovery stress during the pressure release stage, thus improving the forming accuracy and clarity of the indentation.

[0036] S3, when the upper mold base 6 is about to leave the workpiece surface, the lower pressure plate 5 continues to rise and drives the upper mold base 6 to rise through the limit block 9 and the sliding rod 8. At the same time, the pre-pressure floating block 22 continuously applies a downward pushing force to the workpiece through the floating spring 23, thereby breaking the vacuum adsorption and mechanical interlocking that may exist between the workpiece and the upper mold, realizing the reliable demolding of the workpiece. By making the pre-pressure floating block 22 continuously apply a downward pushing force to the workpiece during the demolding stage, the surface scratches caused by the workpiece adhering to the upper mold are avoided, and the clarity of the indentation is improved.

[0037] In addition, to ensure the uniformity of the pressure applied by the preloaded floating block 22 and to avoid damage to the workpiece surface due to uneven local pressure, several floating springs 23 are provided and are evenly distributed. To further ensure the uniformity and symmetry of the overall pressure transmission during the pressing process, at least four pressure equalization components are provided, and their number is even.

[0038] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A metal product processing embossing machine, comprising a base (1), a C-shaped frame (2), a hydraulic assembly (3), and a lower die holder (4), wherein the upper surface of the base (1) is fixedly connected to the bottom end of the C-shaped frame (2), the top end of the C-shaped frame (2) is fixedly connected to the fixed end of the hydraulic assembly (3), and the lower die holder (4) is located below the hydraulic assembly (3) and fixedly connected to the upper surface of the base (1), characterized in that: The hydraulic assembly (3) is provided with a cooperative anti-sticking mold equalizing pressure pressing component (25). The cooperative anti-sticking mold equalizing pressure pressing component (25) includes a lower pressure plate (5), an upper mold base (6), a cooperative anti-sticking mold assembly, and an equalizing component. The pressing end of the hydraulic assembly (3) is fixedly connected to the upper surface of the lower pressure plate (5). The top end of the equalizing component is connected to the lower surface of the lower pressure plate (5). The bottom end of the equalizing component is connected to the upper surface of the upper mold base (6). The upper mold base (6) is provided with a horizontal sliding groove (7), and the horizontal sliding groove (7) is located outside the lower pressure plate (5). The movable end of the cooperative anti-sticking mold assembly is slidably connected to the inner wall of the horizontal sliding groove (7) through a sliding member. The fixed end of the cooperative anti-sticking mold assembly is connected to the side of the lower pressure plate (5).

2. The metal product processing embossing machine according to claim 1, characterized in that: The pressure equalization assembly is provided in several parts and is evenly distributed on the lower pressure plate (5). The pressure equalization assembly includes a sliding rod (8), a limiting block (9), and a preload spring (10). The lower pressure plate (5) is provided with a sliding hole (11). The bottom end of the sliding rod (8) is fixedly connected to the upper surface of the upper mold base (6). The top end of the sliding rod (8) passes through the sliding hole (11) and is fixedly connected to the lower surface of the limiting block (9). The lower surface of the limiting block (9) is in contact with the upper surface of the lower pressure plate (5). The sliding rod (8) is slidably connected to the inner wall of the sliding hole (11). The upper surface of the upper mold base (6) is connected to the lower surface of the lower pressure plate (5) through the preload spring (10) sleeved on the sliding rod (8).

3. The metal product embossing machine according to claim 2, characterized in that: Two collaborative anti-sticking mold components are provided, and the two collaborative anti-sticking mold components are symmetrically distributed on both sides of the lower pressure plate (5). The collaborative anti-sticking mold component includes a sliding block (12), an anti-sticking mold component and a collaborative pusher. The sliding block (12) is located in the horizontal sliding groove (7) and is slidably connected to the inner wall of the horizontal sliding groove (7) through the sliding component. The sliding end of the collaborative pusher is connected to the upper surface of the sliding block (12), the fixed end of the collaborative pusher is connected to the side of the lower pressure plate (5), and the anti-sticking mold component is connected to the lower surface of the sliding block (12).

4. The metal product embossing machine according to claim 3, characterized in that: The cooperating pusher includes a rotating bracket (13), a rotating shaft (14), a horizontal connecting rod (15), a vertical connecting rod (16), and an L-shaped connecting rod (17). The L-shaped connecting rod (17) is composed of a horizontal rod portion (18) and a vertical rod portion (19). There are two rotating brackets (13), and the two rotating brackets (13) are symmetrically distributed on both sides of the horizontal sliding groove (7). The middle part of the rotating shaft (14) is fixedly connected to the L-shaped connecting rod (17), and the rotating shaft (14) is located at the connection between the horizontal rod portion (18) and the vertical rod portion (19) of the L-shaped connecting rod (17). The two ends of the rotating shaft (14) are... The two rotating brackets (13) are rotatably connected to each other. The crossbar (18) is provided with a horizontal slot (20), and the longitudinal bar (19) is provided with a vertical slot (21). One end of the horizontal connecting rod (15) is fixedly connected to the side of the lower pressure plate (5). The other end of the horizontal connecting rod (15) is hinged to the crossbar (18) through a pin located in the horizontal slot (20). The bottom end of the longitudinal connecting rod (16) is fixedly connected to the upper surface of the sliding block (12). The top end of the longitudinal connecting rod (16) is hinged to the longitudinal bar (19) through a pin located in the vertical slot (21).

5. The metal product embossing machine according to claim 4, characterized in that: The anti-sticking mold includes a pre-pressed floating block (22) and a floating spring (23). The lower surface of the sliding block (12) is provided with a sliding groove (24). The top end of the pre-pressed floating block (22) is located in the sliding groove (24) and is slidably connected to the inner wall of the sliding groove (24). The upper surface of the pre-pressed floating block (22) is connected to the top of the inner wall of the sliding groove (24) through the floating spring (23) located in the sliding groove (24).

6. The metal product embossing machine according to claim 5, characterized in that: The floating springs (23) are provided in a plurality of units, and the floating springs (23) are evenly distributed in the sliding grooves (24).

7. The metal product processing embossing machine according to claim 2, characterized in that: The voltage equalization components are provided in at least four, and the number of voltage equalization components is even.

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