Automatic edge curling device for metal badges

Abstract

The utility model discloses a kind of metal badge edge automatic edge rolling device, it is related to light industrial product processing technical field, to solve the inevitable sliding friction of traditional edge rolling device in the process of use, roller and badge edge exist, leading to edge metal continuous wear and tear, finally thickness is lower than design standard, prone to edge rolling cracking, deformation Problem, including upper die assembly and lower die assembly;The lower die assembly includes rack, the top of the rack is provided with vacuum cavity, the inside of the vacuum cavity is provided with piston rod, the top of the vacuum cavity is provided with lower fixed die, the inner top edge of the lower fixed die is provided with guide slot, the inside of the lower fixed die is provided with positioning chuck, the bottom of the positioning chuck is provided with air pipe.The utility model passes through design upper die assembly and lower die assembly, effectively avoid the sliding friction in the process of traditional roller edge rolling, reduce edge wear and tear and surface paint layer damage, improve edge rolling quality and product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of light industrial product processing technology, and more specifically, to an automatic edge-rolling device for metal badges. Background Technology

[0002] Metal badges, with their aesthetic appeal, durability, and cultural significance, are widely used in cultural and creative products, corporate logos, commemorative collections, and sporting events. Edge curling is a crucial step in the metal badge manufacturing process—it eliminates sharp edges, improving safety and enhancing structural stability and overall visual refinement. Therefore, automated edge curling devices have become core equipment for the mass production of metal badges.

[0003] Current mainstream automatic edge-rolling devices for metal badges use a drive mechanism to push rolling rollers to the edge of the badge, utilizing the plastic deformation of the metal to achieve edge rolling. The rolling rollers need to apply continuous radial pressure to the edge of the badge, and during the pressure application process, there is unavoidable sliding friction between the rollers and the edge of the badge, resulting in continuous wear of the edge metal and ultimately a thickness lower than the design standard. At the same time, the perpendicularity deviation between the rollers and the surface of the badge can also cause the roller edges to contact the non-rolled areas of the badge, directly damaging the surface paint layer. We propose an automatic edge-rolling device for metal badges. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an automatic edge-rolling device for metal badges. This solves the problem that in the process of using traditional edge-rolling devices, there is unavoidable sliding friction between the roller and the edge of the badge, which leads to continuous wear of the edge metal, and the final thickness is lower than the design standard, making it easy for the rolled edge to crack and deform.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic edge-rolling device for metal badges, comprising an upper mold assembly, a lower mold assembly, and a transmission assembly; the lower mold assembly includes a frame, a vacuum chamber is provided at the top of the frame, a piston rod is provided inside the vacuum chamber, a lower fixed mold is provided at the top of the vacuum chamber, a guide groove is provided at the inner top edge of the lower fixed mold, a positioning suction cup is provided inside the lower fixed mold, an air pipe is provided at the bottom of the positioning suction cup, and the air pipe extends into the vacuum chamber; the upper mold assembly includes brackets provided at the four corners of the top of the frame, a top plate is provided at the top of the brackets, a cylinder is provided at the top center of the top plate, an upper fixed mold is provided at the bottom output end of the cylinder, a protrusion is provided at the bottom center of the upper fixed mold, and a pressing groove is provided at the edge of the protrusion; the transmission assembly includes an upper connecting block provided on the surface of the cylinder output end and a lower connecting block provided on the bottom surface of the piston rod, and a connecting rod is provided between the upper connecting block and the lower connecting block; During the edge-rolling process, the cylinder drives the upper fixed mold to move downward. The rolling groove first contacts the edge of the metal badge and continuously applies pressure. The edge of the metal badge begins to roll along the inner wall of the rolling groove. When the upper fixed mold contacts the lower fixed mold, the rolling groove and the guide groove enclose to form a circular groove. The edge of the metal badge continues to roll along the circular groove to form an edge roll.

[0006] Preferably, the cross-sections of the coiling groove and the guide groove are both semi-circular, and the coiling groove and the guide groove together form a circular coiling groove.

[0007] Preferably, the protrusion is arranged in an arc shape, and the curvature of the protrusion is the same as the curvature of the metal badge to be processed, and a rubber pad is provided on the surface of the protrusion.

[0008] Preferably, the bottom of the inner cavity of the lower fixed mold is provided with a through hole that matches the air pipe, and the top side of the frame is provided with a clearance groove that matches the movement trajectory of the connecting rod.

[0009] Preferably, the lower fixing mold has an internal mounting groove that mates with the positioning suction cup.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the design of an upper mold assembly and a lower mold assembly, allows the cylinder to drive the upper fixed mold to move downwards during the edge-rolling process. The pressure groove first contacts the edge of the metal badge and continuously applies pressure, causing the edge of the metal badge to begin to curl along the inner wall of the pressure groove. When the upper fixed mold contacts the lower fixed mold, the pressure groove and the guide groove enclose to form a circular groove. The edge of the metal badge continues to curl along the circular groove, forming an edge roll. The cooperative structure of the pressure groove and the guide groove replaces the sliding friction method of the traditional edge-rolling roller. The circular groove formed by the two can guide the edge of the badge to curl along a fixed trajectory, effectively avoiding the sliding friction in the traditional roller edge-rolling process, reducing edge wear and surface paint damage, and improving edge-rolling quality and product qualification rate.

[0011] 2. This utility model also designs a transmission component. During the edge rolling process, when the cylinder drives the upper fixed mold to move downward, the transmission component moves downward synchronously with the cylinder, thereby driving the piston rod inside the vacuum chamber to move downward. A negative pressure is formed inside the vacuum chamber, which then uses a positioning suction cup to adsorb and fix the metal badge to be processed, avoiding badge displacement during the edge rolling process, ensuring edge rolling accuracy and consistency, and further reducing the risk of damage to non-processed areas. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the lower mold assembly structure of this utility model; Figure 3 This is an exploded view of the lower mold assembly of this utility model; Figure 4 This is a schematic diagram of the upper mold assembly structure of this utility model; Figure 5 This is a cross-sectional view of the upper mold assembly and the lower mold assembly of this utility model; Figure 6 This is a schematic diagram of the transmission component structure of this utility model; Figure 7 This is a schematic diagram of the structure of this utility model in use.

[0013] Explanation of the numbers in the diagram: 1. Lower mold assembly; 101. Frame; 102. Vacuum chamber; 103. Piston rod; 104. Lower fixed mold; 105. Guide groove; 106. Through hole; 107. Positioning suction cup; 108. Air pipe; 2. Upper mold assembly; 201. Bracket; 202. Top plate; 203. Cylinder; 204. Upper fixed mold; 205. Protrusion; 206. Pressing groove; 3. Transmission assembly; 301. Upper connecting block; 302. Lower connecting block; 303. Connecting rod; Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: This utility model relates to an automatic edge-rolling device for metal badges, comprising an upper mold assembly 2, a lower mold assembly 1, and a transmission assembly 3. The lower mold assembly 1 includes a frame 101, with a vacuum chamber 102 fixedly connected to the top of the frame 101. A piston rod 103 is inserted into the vacuum chamber 102. A lower fixed mold 104 is fixedly connected to the top of the vacuum chamber 102. A guide groove 105 is formed on the inner top edge of the lower fixed mold 104. A positioning suction cup 107 is fixedly connected to the inside of the lower fixed mold 104. An air pipe 108 is inserted into the bottom of the positioning suction cup 107 and extends into the vacuum chamber 102. The frame 101 serves as the basic support component of the entire device, supporting all structures such as the bracket 201 of the lower mold assembly 1 and the upper mold assembly 2, ensuring the overall stability of the equipment. The vacuum chamber 102 provides a negative pressure space, which, in conjunction with the sliding adjustment of the piston rod 103, adjusts the pressure inside the chamber, providing a stable adsorption power source for the positioning suction cup 107. The piston rod 103 is located inside the vacuum chamber 102. The vacuum chamber 102 is slidable, and the negative pressure inside is adjusted by changing its volume. Simultaneously, the lower connecting block 302 and connecting rod 303 are linked, synchronously responding to the upper mold's movement. The lower fixed mold 104 provides a placement reference for the badge, and its top inner surface is the badge's positioning plane. A guide groove 105 is integrated, which works with the upper mold's pressing groove 206 to achieve edge curling. The guide groove 105 and the upper mold's pressing groove 206 form a circular groove, guiding the badge edge to curl along a fixed trajectory, preventing excessive wear due to sliding friction. It also limits the edge curling direction to ensure curling accuracy. The positioning suction cup 107 uses negative pressure transmitted through the air pipe 108 to adsorb and fix the badge, replacing the traditional rigid clamping structure. This avoids indentations and scratches on the badge's surface paint layer caused by clamping force, while ensuring no displacement during badge processing. The air pipe 108 connects the positioning suction cup 107 and the vacuum chamber 102, serving as a negative pressure transmission channel, allowing the negative pressure of the vacuum chamber 102 to stably act on the positioning suction cup 107, ensuring continuous and reliable adsorption force.The upper mold assembly 2 includes brackets 201 fixedly connected to the four corners of the top of the frame 101. A top plate 202 is fixedly connected to the top of the brackets 201. A cylinder 203 is fixedly connected to the top center of the top plate 202. An upper fixed mold 204 is fixedly connected to the bottom output end of the cylinder 203. A protrusion 205 is fixedly connected to the bottom center of the upper fixed mold 204. A pressing groove 206 is formed on the edge of the protrusion 205. The brackets 201 support the top plate 202, providing installation height and stable support for the upper mold assembly 2, ensuring that the upper fixed mold 204 can move vertically up and down. The top plate 202 serves as the mounting carrier for the cylinder 203 and is fixed with bolts. The fixed cylinder 203 ensures that the force direction at the output end of the cylinder 203 is vertically downward, preventing the upper fixed mold 204 from shifting and causing edge curling deviation. The cylinder 203 provides the power source for the up-and-down movement of the upper fixed mold 204. The extension and retraction of the output end drives the upper fixed mold 204 to apply pressure, controlling the pressure and movement speed during the edge curling process to ensure uniform edge curling force. The upper fixed mold 204 carries the protrusion 205 and the pressing groove 206. Driven by the cylinder 203, it applies downward pressure, transmitting the pressure to the edge of the badge. At the same time, when it fits with the lower fixed mold 104, it forms a closed edge curling space, ensuring edge curling formation. The curvature of the protrusion 205 matches that of the badge to be processed. During processing, the upper mold conforms to the upper surface of the badge, restricting its upward displacement. The pressing groove 206 first contacts the edge of the badge and applies pressure, guiding the edge to curl initially. When the upper mold and lower mold are in contact, they form a circular groove with the guide groove 105, completing the final edge curl and preventing the edge from sliding and rubbing to thin. The transmission component 3 includes an upper connecting block 301 fixedly connected to the output end surface of the cylinder 203 and a lower connecting block 302 fixedly connected to the bottom surface of the piston rod 103. A connecting rod 303 is fixedly connected between the upper connecting block 301 and the lower connecting block 302. The upper connecting block 301 is fixed to the output end of the cylinder 203, serving as the connecting rod 303. The connecting medium of the mold assembly 2 transmits the up and down movement of the cylinder 203 to the connecting rod 303, realizing the linkage between the upper mold and the lower mold. The lower connecting block 302 is fixed to the bottom of the piston rod 103 and serves as the connecting medium between the connecting rod 303 and the lower mold assembly 1. It transmits the movement of the connecting rod 303 to the piston rod 103, causing the piston rod 103 to slide in the vacuum chamber 102 and adjust the negative pressure to stabilize. The connecting rod 303 connects the upper connecting block 301 and the lower connecting block 302, realizing the synchronous movement of the cylinder 203 driving the piston rod 103. This ensures that when the upper fixed mold 204 applies pressure, the negative pressure in the vacuum chamber 102 is stable and the adsorption force of the positioning suction cup 107 does not fluctuate.This invention, through the design of the upper mold assembly 2 and the lower mold assembly 1, allows the cylinder 203 to drive the upper fixed mold 204 downward during the edge-rolling process. The pressure groove 206 first contacts the edge of the metal badge and continuously applies pressure, causing the edge of the metal badge to begin rolling along the inner wall of the pressure groove 206. When the upper fixed mold 204 contacts the lower fixed mold 104, the pressure groove 206 and the guide groove 105 enclose to form a circular groove. The edge of the metal badge continues to roll along the circular groove, forming a rolled edge. This cooperative structure of the pressure groove 206 and the guide groove 105 replaces the sliding friction method of the traditional edge-rolling roller. The circular groove formed by the two guides the edge of the badge to roll along a fixed trajectory. This design effectively avoids the sliding friction that occurs during traditional roller edge curling, reducing edge wear and surface paint damage, and improving edge curling quality and product qualification rate. Furthermore, by designing a transmission component 3, during the edge curling process, when the cylinder 203 drives the upper fixed mold 204 downwards, the transmission component 3 moves downwards synchronously with the cylinder 203, thereby driving the piston rod 103 inside the vacuum chamber 102 downwards. This creates a negative pressure inside the vacuum chamber 102, which in turn allows the positioning suction cup 107 to adhere and fix the metal badge to be processed, preventing badge displacement during the edge curling process, ensuring edge curling accuracy and consistency, and further reducing the risk of damage to non-processed areas.

[0015] Specifically, the cross-sections of the pressing groove 206 and the guide groove 105 are both semi-circular, and the pressing groove 206 and the guide groove 105 together form a circular curling groove. After being enclosed, they can form a complete circular curling groove, ensuring that the edge of the badge is uniformly circular after curling, without sharp corners or local compression and thinning; at the same time, the inner wall of the circular groove is smooth, reducing edge friction.

[0016] Specifically, the protrusion 205 is arc-shaped, and the curvature of the protrusion 205 is the same as that of the metal badge to be processed. A rubber pad is adhered to the surface of the protrusion 205, and the curvature is completely consistent with that of the badge. During processing, it can fully fit with the upper surface of the badge, avoiding paint indentations caused by local pressure concentration. At the same time, it restricts the radial displacement of the badge, ensuring the stability of the edge position when rolling. The elasticity of the rubber buffers the contact pressure, preventing the protrusion 205 from scratching the paint layer on the badge surface. In addition, the anti-slip property of the rubber can further restrict the displacement of the badge and improve the positioning stability.

[0017] It is worth mentioning that the bottom of the inner cavity of the lower fixed mold 104 is provided with a through hole 106 that matches the air pipe 108. The through hole 106 provides an installation and positioning channel for the air pipe 108, preventing the air pipe 108 from shifting or bending when the pressure of the vacuum chamber 102 changes or when the equipment is running, and ensuring smooth negative pressure transmission. The top side of the frame 101 is provided with a relief groove that matches the movement trajectory of the connecting rod 303. The relief groove provides space for the rotation of the connecting rod 303, preventing the connecting rod 303 from colliding or rubbing against the frame 101 when it moves with the upper mold, and ensuring that the connecting rod 303 can move freely.

[0018] It is worth mentioning that the lower fixed mold 104 has an installation groove inside that matches the positioning suction cup 107. The installation groove provides a precise installation position for the positioning suction cup 107, ensuring that the top of the positioning suction cup 107 is flush with the top of the lower fixed mold 104, thus preventing the suction cup from protruding or sinking and causing the badge to be placed tilted, which in turn leads to uneven edge thickness.

[0019] Working Principle: This embodiment provides an automatic edge-rolling device for metal badges. In use, the metal badge to be processed is placed flat on the inner top of the lower fixed mold 104, with the badge edge aligned with the inner side of the guide groove 105. The cylinder 203 is activated, and its output end drives the upper fixed mold 204 downwards. At this time, the upper connecting block 301 moves downwards synchronously with the output end of the cylinder 203, pulling the lower connecting block 302 and the piston rod 103 in the vacuum chamber 102 downwards via the connecting rod 303, creating a negative pressure in the vacuum chamber 102. When the upper fixed mold 204 moves down to the point where the rolling groove 206 contacts the badge edge, the rolling groove 206 applies continuous pressure to the badge edge, causing the badge edge to roll along the rolling groove 206 under pressure. The inner wall gradually bends, initially forming an arc-shaped curl. The cylinder 203 continues to drive the upper fixed mold 204 to move downward until the bottom of the upper fixed mold 204 is completely in contact with the top of the lower fixed mold 104. At this time, the pressing groove 206 and the guide groove 105 enclose a complete circular groove. The edge of the badge continues to curl along the inner wall of the circular groove, eventually forming a tight and uniform circular curl. After the curl is completed, the output end of the control cylinder 203 is reset, the upper fixed mold 204 moves upward, and at the same time, the piston rod 103 is pushed upward to reset through the connecting rod 303, and the negative pressure in the vacuum chamber 102 is released. The suction force of the positioning suction cup 107 disappears, and the processed badge is taken out from the lower fixed mold 104 by manual or robotic arm, completing one curling process.

[0020] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A device for automatically curling the edges of a metal badge, characterized in that, The assembly includes an upper mold assembly (2), a lower mold assembly (1), and a transmission assembly (3); the lower mold assembly (1) includes a frame (101), a vacuum chamber (102) is provided at the top of the frame (101), a piston rod (103) is provided inside the vacuum chamber (102), a lower fixed mold (104) is provided at the top of the vacuum chamber (102), a guide groove (105) is provided at the inner top edge of the lower fixed mold (104), a positioning suction cup (107) is provided inside the lower fixed mold (104), and an air pipe (108) is provided at the bottom of the positioning suction cup (107), with the air pipe (108) extending into the vacuum chamber (102); the upper mold assembly (2) includes a frame (101), a lower mold assembly (102), and a transmission assembly (3); the lower mold assembly (101) includes a frame (101), a lower mold assembly (102), and a transmission assembly (3); the upper mold assembly (101) includes a frame (101), a lower mold assembly (102), a transmission assembly (3), and a transmission assembly (3); the lower mold assembly (101) includes a frame (101), a lower mold assembly (102), a lower fixed mold (104 ... 101) The brackets (201) at the four corners of the top are provided with a top plate (202) at the top of the brackets (201), a cylinder (203) is provided in the middle of the top of the top plate (202), an upper fixed mold (204) is provided at the bottom output end of the cylinder (203), a protrusion (205) is provided in the middle of the bottom of the upper fixed mold (204), and a pressing groove (206) is provided on the edge of the protrusion (205); the transmission assembly (3) includes an upper connecting block (301) provided on the surface of the output end of the cylinder (203) and a lower connecting block (302) provided on the bottom surface of the piston rod (103), and a connecting rod (303) is provided between the upper connecting block (301) and the lower connecting block (302); During the edge rolling process, the cylinder (203) drives the upper fixed mold (204) to move downward. The pressing groove (206) first contacts the edge of the metal badge and continuously applies pressure. The edge of the metal badge begins to curl along the inner wall of the pressing groove (206). When the upper fixed mold (204) contacts the lower fixed mold (104), the pressing groove (206) and the guide groove (105) enclose a circular groove. The edge of the metal badge continues to curl along the circular groove to form an edge roll.

2. A device for automatically edging the edges of a metal badge according to claim 1, characterized in that The cross-sections of the coiling groove (206) and the guide groove (105) are both semi-circular, and the coiling groove (206) and the guide groove (105) together form a circular coiling groove.

3. A device for automatically curling the edges of a metal badge according to claim 2, characterized in that, The protrusion (205) is arranged in an arc shape, and the curvature of the protrusion (205) is the same as the curvature of the metal badge to be processed. The surface of the protrusion (205) is provided with a rubber pad.

4. A device for automatically edging the edges of a metal badge according to claim 3, characterized in that The bottom of the inner cavity of the lower fixed mold (104) is provided with a through hole (106) that matches the air pipe (108), and the top side of the frame (101) is provided with a clearance groove that matches the movement trajectory of the connecting rod (303).

5. A device for automatically edging the edges of a metal badge according to claim 4, characterized in that The lower fixed mold (104) has an internal mounting groove that mates with the positioning suction cup (107).

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