Alloy nameplate and plastic piece pasting and corner folding device

Abstract

This invention discloses a stamping and bending device for bonding alloy nameplates and plastic parts, comprising a machine base, on which a lower mold body is mounted via a support plate. A cylinder is also mounted on the machine base via a gantry frame, and an upper mold body is mounted on the lower end of the cylinder's output shaft via a hanging plate. A positioning frame is provided inside the lower mold body, within which a plastic part body, a fabric cover body, and an alloy nameplate body are stacked sequentially from bottom to top. Multiple legs of the alloy nameplate body penetrate the fabric cover body and extend below insertion holes on the surface of the plastic part body. The inner bottom surface of the positioning frame has a nameplate stamping area corresponding to the alloy nameplate body, and a stamping groove is formed in the nameplate stamping area corresponding to each leg. This invention allows the legs to enter the stamping grooves when the upper mold body is pressed down, deforming under the pressure of the groove walls. A single stamping action can complete the bonding of multiple layers of material and the bending of the nameplate legs, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, and in particular to a stamping and bending device for bonding alloy nameplates to plastic parts. Background Technology

[0002] In the manufacturing process of many products (such as electronic products, automotive interiors, and home appliances), it is often necessary to fix alloy nameplates with decorative or identification functions to the surface of plastic parts. Traditional fixing methods mostly use adhesive or screws. Adhesive methods are prone to aging and delamination after long-term use, and the positioning accuracy is difficult to guarantee; screw fixing not only affects the appearance of the product, but also increases assembly steps and costs.

[0003] To improve the bonding strength and aesthetics, existing technologies have developed a structure in which the nameplate's own legs pass through the plastic part and are then bent to achieve a riveting effect. However, in actual production, especially when a protective or cushioning fabric layer needs to be attached between the nameplate and the plastic part, how to quickly and accurately position the multi-layered materials and complete the bending and forming of the legs in one go has become a technical challenge.

[0004] To address this issue, we propose a stamping and bending device for bonding alloy nameplates to plastic parts. Summary of the Invention

[0005] The purpose of this invention is to provide a stamping and bending device for bonding alloy nameplates and plastic parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An alloy nameplate and plastic part bonding stamping and bending device includes a base, on which a lower mold body is mounted via a support plate. A cylinder is also mounted on the base via a gantry frame, and an upper mold body is mounted on the lower end of the cylinder's output shaft via a hanging plate. The upper mold body corresponds vertically to the lower mold body. A positioning frame is provided inside the lower mold body. A plastic part body, a fabric cover body, and an alloy nameplate body are stacked sequentially from bottom to top in the positioning frame. Multiple legs of the alloy nameplate body penetrate through the fabric cover body and extend below the insertion holes on the surface of the plastic part body. The inner bottom surface of the positioning frame has a nameplate stamping area corresponding to the alloy nameplate body, and a stamping groove is provided in the nameplate stamping area corresponding to each leg.

[0007] In a further embodiment, the upper port of the positioning frame is chamfered to form an inclined guide slope.

[0008] In a further embodiment, the lower surface of the plastic part body is provided with a positioning protrusion, and the inner bottom surface of the positioning frame is provided with a positioning groove corresponding to the positioning protrusion.

[0009] In a further embodiment, the stamping groove adopts a teardrop-shaped groove structure.

[0010] In a further embodiment, a pair of vertical guide rods are symmetrically fixedly installed on the hanging plate, and a guide sleeve is embedded on the crossbeam of the gantry frame corresponding to each guide rod, and the guide rod slides through the interior of the guide sleeve.

[0011] In a further embodiment, the front end face of the base is provided with a control panel, and safety light curtains are symmetrically installed on both sides of the upper surface of the base near the front end.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves rapid stacking and precise positioning of the plastic part body, the fabric cover body, and the alloy nameplate body by setting up corresponding upper and lower mold bodies and opening a positioning frame on the lower mold body. In the nameplate stamping area of ​​the lower mold body, a stamping groove is opened for each foot. When the upper mold body is pressed down, the end of the foot enters the stamping groove and is deformed by the pressure of the groove wall, thus bending and forming in one go. The bonding of multiple layers of materials and the bending of the nameplate foot can be completed in one stamping action, which greatly improves production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure after the outer casing of the present invention has been removed; Figure 3 This is a schematic diagram of the internal structure of the lower mold body of the present invention; Figure 4 This is a schematic diagram of the horizontal structure after the plastic part body, the fabric cover body, and the alloy nameplate body are stacked inside the lower mold body of the present invention.

[0014] In the diagram: 1. Base; 2. Support plate; 3. Lower mold body; 31. Positioning frame; 311. Guide slope; 312. Positioning groove; 32. Nameplate stamping area; 33. Stamping groove; 4. Gantry frame; 5. Cylinder; 6. Hanging plate; 7. Upper mold body; 8. Plastic part body; 81. Positioning protrusion; 82. Insertion hole; 9. Fabric cover body; 10. Alloy nameplate body; 11. Foot column; 12. Guide rod; 13. Guide sleeve; 14. Control panel; 15. Safety light curtain. Detailed Implementation

[0015] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this invention, 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-2 An alloy nameplate and plastic part bonding stamping and bending device mainly includes a base 1 as the mounting base. The base 1 is made of high-strength cast iron or welded steel structure to ensure sufficient mass and rigidity, thereby absorbing vibration during the stamping process and ensuring accuracy. In the center area of ​​the upper surface of the base 1, a lower mold body 3 is fixedly installed by a rectangular support plate 2. The support plate 2 and the base 1, as well as the lower mold body 3 and the support plate 2, can be locked with multiple bolts to ensure a stable connection and easy disassembly and maintenance.

[0019] Furthermore, a gantry frame 4 is also mounted on the base 1. The gantry frame 4 spans across the lower mold body 3. The gantry frame 4 is preferably made of high-quality carbon structural steel. Its two side columns are fixed to the two sides of the base 1 by bolts or welding. The crossbeam spans across the top of the two side columns to form a sturdy frame structure. A cylinder 5 is vertically installed at the center of the crossbeam of the gantry frame 4. As the core driving element of this device, the air inlet and outlet of the cylinder 5 are connected to the external pneumatic control system through air pipes.

[0020] The output shaft of cylinder 5 passes through the crossbeam of gantry frame 4 and extends downward. This end is fixedly connected to a horizontal hanging plate 6 by a locking nut. The upper mold body 7 is installed below the hanging plate 6 by multiple bolts. Cylinder 5 can drive the upper mold body 7 to perform precise up and down reciprocating motion, and ensure that the lower surface of the upper mold body 7 is parallel to the upper surface of the lower mold body 3. The upper mold body 7 and the lower mold body 3 are precisely aligned in the vertical direction.

[0021] Please see Figure 3-4 The core working area of ​​the lower mold body 3 is the positioning frame 31 inside its upper surface. The positioning frame 31 is a recessed rectangular cavity with an outline size slightly larger than the outer dimensions of the plastic part body 8 to be processed, so as to facilitate the placement of the material, but not too large to prevent the material from moving excessively in the horizontal direction. Specifically, the upper port of the positioning frame 31 has four edges that are precision machined to form inclined guide slopes 311. The guide slopes 311 are usually chamfered at 45 degrees. Their function is to guide and avoid the plastic part body 8, the fabric body 9 and the alloy nameplate body 10 when they are placed in, so as to prevent the multi-layer material from being stuck by the edges of the positioning frame 31 due to edge warping or slight dimensional deviations, thereby achieving smooth and fast assembly.

[0022] On the inner bottom surface of the positioning frame 31, at least one positioning groove 312 is provided along the perimeter or at a specific position. Correspondingly, the lower surface of the plastic part body 8 to be processed is integrally formed or processed with a positioning protrusion 81 that perfectly matches the shape and position of the positioning groove 312. When the plastic part body 8 is placed into the positioning frame 31, the plastic part body 8 can only be completely placed on the bottom if the positioning protrusion 81 is aligned and slides into the positioning groove 312, thereby playing the role of preventing reverse and precise positioning.

[0023] When assembling materials, they are stacked in order from bottom to top: First, the plastic part body 8 is placed in the positioning frame 31, and its positioning protrusion 81 is inserted into the positioning groove 312. Then, a flexible cloth body 9 is flatly covered on the upper surface of the plastic part body 8. Finally, the alloy nameplate body 10 is placed on the cloth body 9. The lower surface of the alloy nameplate body 10 is integrally formed with multiple feet 11 for fixing. When correctly placed, these feet 11 will pass through the pre-drilled holes on the cloth body 9 and into the pre-drilled insertion holes 82 on the surface of the plastic part body 8. The ends of the feet 11 will extend below the lower surface of the plastic part body 8.

[0024] To achieve the bending of the foot post 11, the area on the inner bottom surface of the positioning frame 31 facing the alloy nameplate body 10 is defined as the nameplate stamping area 32. Within the nameplate stamping area 32, a downwardly recessed stamping groove 33 is provided corresponding to the position of each foot post 11. The stamping groove 33 is designed as a teardrop-shaped groove. The so-called teardrop-shaped groove means that, from a top view, the outline of the stamping groove 33 is approximately the shape of a teardrop, with one end being wider and shallower, and the other end being narrower and deeper. From a cross-sectional view, the bottom of the groove is a smooth curved surface, and the depth gradually increases from one end to the other. This special shape allows the foot post 11 to be pressed into the groove by the upper mold body 7, and the curved surface of the groove wall will guide the end of the foot post 11 to undergo plastic deformation, causing it to gradually bend along the curved surface of the groove wall, eventually forming a hook-shaped bend, without causing the foot post 11 to break or crack due to stress concentration.

[0025] To ensure the smooth movement and stamping accuracy of the upper mold body 7 and to prevent mold displacement caused by radial force or off-center load of cylinder 5, this device is also equipped with a guiding mechanism. Specifically, a pair of vertical guide rods 12 are symmetrically fixed on the upper surface of the hanging plate 6. The two guide rods 12 are located on both sides of the output shaft of cylinder 5. Correspondingly, on the crossbeam of gantry frame 4, a linear bearing or a guide sleeve 13 made of copper alloy is embedded at the position of each guide rod 12. The upper end of the guide rod 12 slides through the inside of the guide sleeve 13. When cylinder 5 drives the hanging plate 6 to move up and down, the guide rod 12 slides synchronously in the guide sleeve 13, thereby providing precise guidance for the entire upper mold assembly and ensuring that the mold clearance between the upper mold body 7 and the lower mold body 3 is uniform.

[0026] In addition, from the perspective of operational safety and convenience, a control panel 14 is provided on the front face of the base 1. The control panel 14 integrates a power switch, an emergency stop button, a start / stop button, indicator lights for displaying the working status, and a touch screen or adjustment knob for adjusting air pressure and time parameters. The control panel 14 is internally connected to a PLC or relay control circuit. At the same time, a pair of safety light curtains 15 are symmetrically installed on both ends of the upper surface of the base 1 near the operator. The safety light curtain 15 consists of a transmitter and a receiver, forming one or more invisible infrared beams. When the operator's hand or any foreign object enters the working area and blocks the beam, the safety light curtain 15 will immediately send a signal to the control system. The control system will then cut off the air supply to the cylinder 5 or cause the cylinder 5 to reset in an emergency, thereby forcibly stopping the stamping action and effectively preventing work-related accidents.

[0027] Working process: First, the operator places the plastic part body 8, the fabric cover body 9, and the alloy nameplate body 10 into the positioning frame 31 of the lower mold body 3 in the order described above. After confirming that the placement is correct, the operator removes both hands from the detection area of ​​the safety light curtain 15 and starts the equipment through the control panel 14. Usually, both start buttons need to be pressed simultaneously with both hands to ensure safety. The solenoid valve of the cylinder 5 reverses, and compressed air enters the upper chamber of the cylinder 5, pushing the piston rod downward. Under the guidance of the guide rod 12 and the guide sleeve 13, the upper mold body 7 descends smoothly. The upper mold body 7 first contacts and presses the alloy nameplate body 10, tightly binding the three layers of material. As the cylinder 5 continues to pressurize, the various legs 11 on the alloy nameplate body 10 are forcibly pressed into the stamping groove 33 below. Under the limiting and guidance of the teardrop-shaped curved surface structure of the stamping groove 33, the legs 11 deform, from a vertical state to a bent state that fits against the lower surface of the plastic part body 8. At this point, the alloy nameplate body 10, the fabric cover body 9, and the plastic part body 8 are firmly physically riveted together through the bending of the legs 11. After holding the pressure for a period of time, the cylinder 5 reverses direction and returns, the upper mold body 7 is lifted, and the operator takes out the finished product, thus completing one work cycle.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An alloy nameplate and plastic piece fitting stamping corner folding device, comprising a base (1), characterized in that: The base (1) is equipped with a lower mold body (3) via a support plate (2). The base (1) is also equipped with a cylinder (5) via a gantry frame (4). The lower end of the output shaft of the cylinder (5) is equipped with an upper mold body (7) via a hanging plate (6). The upper mold body (7) corresponds to the lower mold body (3) vertically. The lower mold body (3) has a positioning frame (31) inside. The positioning frame (31) has a plastic part body (8), a fabric cover body (9) and an alloy nameplate body (10) stacked sequentially from bottom to top. Multiple legs (11) of the alloy nameplate body (10) penetrate the fabric cover body (9) and pass through the insertion hole (82) on the surface of the plastic part body (8). The inner bottom surface of the positioning frame (31) is provided with a nameplate stamping area (32) corresponding to the alloy nameplate body (10). A stamping groove (33) is provided in the nameplate stamping area (32) corresponding to each leg (11).

2. The alloy nameplate and plastic piece adhering and corner folding device according to claim 1, characterized in that: The upper port of the positioning frame (31) is chamfered to form an inclined guide slope (311).

3. The alloy nameplate and plastic piece adhering and corner folding device according to claim 1, characterized in that: The lower surface of the plastic body (8) is provided with a positioning protrusion (81), and the inner bottom surface of the positioning frame (31) is provided with a positioning groove (312) corresponding to the positioning protrusion (81).

4. The alloy nameplate and plastic part adhering and corner folding device according to claim 1, characterized in that: The stamping groove (33) adopts a teardrop-shaped groove structure.

5. The alloy nameplate and plastic part bonding stamping and bending device according to claim 1, characterized in that: A pair of vertical guide rods (12) are symmetrically fixed on the hanging plate (6). A guide sleeve (13) is embedded on the crossbeam of the gantry frame (4) corresponding to each guide rod (12), and the guide rod (12) slides through the inside of the guide sleeve (13).

6. The alloy nameplate and plastic part bonding stamping and bending device according to claim 1, characterized in that: The front end face of the base (1) is provided with a control panel (14), and safety light curtains (15) are symmetrically installed on both sides of the upper surface of the base (1) near the front end.

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