A mechanical hand for ejecting bottle caps from an injection molding machine

Abstract

The utility model discloses a bottle cap manipulator for injection molding machine ejection relates to manipulator technical field, including three -axis mechanical arm, three -axis mechanical arm contains X -axis arm, Y -axis arm and Z -axis arm, the bottom assembly of Y -axis arm is equipped with the sucking disc component that can adsorb bottle cap, the outer wall fixed location board of Y -axis arm, one side assembly of location board can draw the drive motor that sucking disc component rotates. The utility model discloses through four groups of radial sliding sucking disc parts, so that the manipulator can adapt to different size and shape bottle cap, has improved the versatility and compatibility of equipment, and the assembly of drive motor makes sucking disc component can rotate around Y -axis arm, further expands the operation range of manipulator, and the design of handle disc makes user conveniently control the rotation of the work shape ring, and then adjusts the position and angle of sucking disc component, has improved the convenience and flexibility of operation.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically a bottle cap robotic arm for ejecting molds in injection molding machines. Background Technology

[0002] Bottle caps for plastic bottles are typically formed using injection molding. In existing technology, after the injection molding machine produces the caps, it uses ejector pins to push them out, and a collection box underneath collects the molded caps. In existing injection molding production lines, cap removal usually relies on manual operation, which is not only inefficient but also poses safety hazards. During manual cap removal, workers need to frequently come into contact with high-temperature molds, which can easily lead to burns and other workplace injuries. At the same time, the accuracy and consistency of manual operation are difficult to guarantee, affecting the quality of bottle caps and production efficiency.

[0003] Currently, to address this issue, a series of automated bottle cap removal devices have emerged on the market. However, these devices generally suffer from complex structures and cumbersome designs, leading to high manufacturing and maintenance costs. Furthermore, they are often only applicable to specific types of injection molding machines, lacking broad compatibility and failing to meet diverse production needs. Therefore, this paper proposes a bottle cap robot for injection molding machine demolding. Utility Model Content

[0004] Based on this, the present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a bottle cap robot for ejecting from injection molding machines, which is applicable to different models of injection molding machines and can remove bottle caps of various sizes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bottle cap robot for ejecting from an injection molding machine, comprising a three-axis robotic arm, wherein the three-axis robotic arm includes an X-axis arm, a Y-axis arm and a Z-axis arm, wherein a suction cup assembly capable of adsorbing bottle caps is mounted at the bottom of the Y-axis arm, a positioning plate is fixed to the outer wall of the Y-axis arm, and a drive motor capable of pulling the suction cup assembly to rotate is mounted on one side of the positioning plate; The suction cup assembly includes a panel connected to a positioning plate. The bottom of the panel is provided with a base plate. The bottom of the base plate is equipped with four sets of suction cup components that can slide radially. A diverter cylinder connected to the bottom plate is located in the center of the four sets of suction cup components. The outer wall of the diverter cylinder is provided with an air pipe that connects to an external air pump. Each set of suction cup components is connected to the diverter cylinder by a telescopic tube. The bottom of the base plate has a stroke groove corresponding to each set of telescopic tubes. The suction cup components slide in the stroke groove and are connected to the telescopic tubes.

[0006] As a preferred technical solution, the telescopic tube includes an inner cylinder and an outer cylinder. The inner cylinder is sleeved inside the outer cylinder and connected to the suction cup component. The end of the outer cylinder is connected to the diverter cylinder. The axial position of the inner cylinder and the outer cylinder is provided with a positioning shaft fixed to the inner wall of the travel groove. The inner cylinder can slide axially along the outer wall of the positioning shaft.

[0007] As a preferred technical solution, the suction cup component includes a suction cup that communicates with the inner cylinder, a positioning ring is fixed inside the suction cup, a connecting tube is slidably sleeved inside the positioning ring, a spring fixed to the bottom of the positioning ring is sleeved on the outer wall of the connecting tube, multiple sets of air holes are opened on the outer wall of the connecting tube along its circumference, and a sealing gasket that can block the internal channel of the suction cup is fixed at the bottom of the connecting tube.

[0008] As a preferred technical solution, the outer side of the diverter is provided with an I-shaped ring rotatably connected to the bottom of the panel. Above each set of suction cups is a traction plate fixed to the outer wall of the inner cylinder. The top of the traction plate is fixed with a magnet that can be attracted to the bottom of the panel. The outer wall of the magnet is provided with a cable fixed to the curved outer wall of the I-shaped ring. The top of the panel is provided with a handle that can pull the I-shaped ring to rotate.

[0009] As a preferred technical solution, the panel is fixed to the base plate with four sets of bolts, and the top of the base plate has threaded holes at the positions corresponding to the bolts.

[0010] As a preferred technical solution, the handle is connected to the panel by a bearing, and the top of the panel and the outer wall of the handle are engraved with scale lines.

[0011] As a preferred technical solution, a limiting groove is provided at the bottom of the panel where it contacts the four sets of traction plates, and a reversing wheel is provided in the limiting groove at the inside corner of the cable.

[0012] In summary, the present invention has the following main advantages: This invention utilizes four sets of radially sliding suction cup components, enabling the robotic arm to adapt to bottle caps of different sizes and shapes, thus improving the versatility and compatibility of the equipment. Simultaneously, the assembly of the drive motor allows the suction cup assembly to rotate around the Y-axis arm, further expanding the robotic arm's operating range. The handle design allows users to easily control the rotation of the I-ring, thereby adjusting the position and angle of the suction cup assembly, enhancing operational convenience and flexibility. Attached Figure Description

[0013] Figure 1 This is a perspective view of the three-axis robotic arm of this utility model; Figure 2 This is an unfolded view of the suction cup assembly of this utility model; Figure 3This is a three-dimensional structural diagram of the suction cup component of this utility model; Figure 4 This is a bottom view of the panel of this utility model; Figure 5 This is a three-dimensional structural diagram of the I-shaped ring of this utility model; Figure 6 This is a schematic diagram of the suction cup and telescopic tube of this utility model; Figure 7 This is a side sectional view of the suction cup of this utility model.

[0014] In the diagram: 100, three-axis robotic arm; 110, X-axis arm; 120, Y-axis arm; 130, Z-axis arm; 140, positioning plate; 150, drive motor; 160, ear plate; 200. Suction cup assembly; 210. Panel; 220. Base plate; 221. Stroke groove; 222. Constraint groove; 230. Suction cup component; 231. Suction cup; 232. Inner cylinder; 233. Bearing plate; 234. Outer cylinder; 235. Sealing gasket; 236. Connecting pipe; 237. Air hole; 238. Spring; 239. Positioning ring; 240. Diverter cylinder; 250. Air pipe; 260. I-shaped ring; 270. Traction plate; 271. Cable; 272. Magnet; 273. Reversing wheel; 280. Handle disc. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] The embodiments of this utility model will be described below based on its overall structure.

[0017] A bottle cap robot for ejecting molds in injection molding machines, such as Figures 1 to 7 As shown, the three-axis robotic arm 100 includes an X-axis arm 110, a Y-axis arm 120 and a Z-axis arm 130. The bottom of the Y-axis arm 120 is equipped with a suction cup assembly 200 that can adsorb bottle caps. A positioning plate 140 is fixed to the outer wall of the Y-axis arm 120. A drive motor 150 that can pull the suction cup assembly 200 to rotate is installed on one side of the positioning plate 140. The suction cup assembly 200 includes a panel 210 connected to a positioning plate 140. The bottom of the panel 210 is provided with a base plate 220. The bottom of the base plate 220 is equipped with four sets of suction cup components 230 that can slide radially. A diverter cylinder 240 connected to the base plate 220 is provided in the center of the four sets of suction cup components 230. The outer wall of the diverter cylinder 240 is provided with an air pipe 250 that is connected to an external air pump. Each set of suction cup components 230 is connected to the diverter cylinder 240 by a telescopic tube. The bottom of the base plate 220 is reserved with a stroke groove 221 corresponding to each set of telescopic tubes. The suction cup components 230 slide in the stroke groove 221 and are connected to the telescopic tubes.

[0018] The telescopic tube includes an inner cylinder 232 and an outer cylinder 234. The inner cylinder 232 is sleeved inside the outer cylinder 234 and connected to the suction cup component 230. The end of the outer cylinder 234 is connected to the diverter cylinder 240. The axial position of the inner cylinder 232 and the outer cylinder 234 is provided with a positioning shaft fixed to the inner wall of the stroke groove 221. The inner cylinder 232 can slide axially along the outer wall of the positioning shaft.

[0019] The suction cup component 230 includes a suction cup 231 that is connected to the inner cylinder 232. A positioning ring 239 is fixed inside the suction cup 231. A connecting tube 236 is slidably sleeved inside the positioning ring 239. A spring 238 fixed to the bottom of the positioning ring 239 is sleeved on the outer wall of the connecting tube 236. Multiple sets of air holes 237 are opened on the outer wall of the connecting tube 236 along its circumference. A sealing gasket 235 that can block the internal channel of the suction cup 231 is fixed at the bottom of the connecting tube 236.

[0020] The outer side of the diverter 240 is provided with an I-shaped ring 260 rotatably connected to the bottom of the panel 210. Above each set of suction cups 231 is a traction plate 270 fixed to the outer wall of the inner cylinder 232. The top of the traction plate 270 is fixed with a magnet 272 that can be attracted to the bottom of the panel 210. The outer wall of the magnet 272 is provided with a cable 271 fixed to the curved outer wall of the I-shaped ring 260. The top of the panel 210 is provided with a handle 280 that can pull the I-shaped ring 260 to rotate.

[0021] It is worth noting that a bearing plate 233 is fixed to the outer wall of the straight tube portion of the suction cup 231. The bearing plate 233 slides within the travel groove 221, and a constraint groove 222 is provided within the travel groove 221 at the position where it contacts the bearing plate 233. By setting the bearing plate 233, the suction cup component 230 can be supported, and it can move with the movement of the suction cup 231 to prevent the suction cup component 230 from shaking and improve the stability of the suction cup component 230 during operation. The drive motor 150 is connected to a lug 160, which is fixed to the top of the panel 210 and can rotate as the drive motor 150 operates.

[0022] In use, the device is connected to an external power supply and an air pump. The three-axis robotic arm 100 moves the suction cup assembly 200 to the position of the injection molding machine outlet. Then, the drive motor 150 drives the suction cup assembly 200 to rotate, so that the suction cup 231 is facing the bottle cap. At this time, the air pump is started, and the gas in the diverter 240 is extracted through the air pipe 250. Then, the gas in the suction cup 231 is discharged through the telescopic tube, so that the suction cup 231 adsorbs the bottle cap. Finally, the three-axis robotic arm 100 removes the bottle cap. Subsequently, when it is necessary to adjust the spacing of the suction cups 231, the handle 280 is rotated. The handle 280 drives the I-shaped ring 260 to rotate. The I-shaped ring 260 drives the magnet 272 to move through the cable 271. The magnet 272 drives the traction plate 270 to move. The traction plate 270 drives the inner cylinder 232 to slide along the inner wall of the outer cylinder 234. At the same time, the inner cylinder 232 drives the suction cups 231 to slide in the stroke groove 221. Thus, the spacing of the suction cups 231 can be adjusted according to the size of the bottle cap, improving the practicality of this device. When the air inside the suction cup 231 is drawn into the inner cylinder 232 and the outer cylinder 234, as the gas flows through the air hole 237, the air inside the suction cup 231 is drawn out. At this time, the suction cup 231 is in a negative pressure state, and the sealing gasket 235 is tightly attached to the inner wall of the suction cup 231, thereby blocking the communication between the inside of the suction cup 231 and the outside world, ensuring the stable adsorption of the bottle cap by the suction cup 231. Meanwhile, since multiple sets of air holes 237 are opened on the outer wall of the connecting tube 236, when the air inside the suction cup 231 is extracted, the air holes 237 enable the gas to be distributed more evenly, which enhances the adsorption effect and stability of the suction cup 231.

[0023] Please refer to this carefully. Figures 2 to 5 The panel 210 is fixed to the base plate 220 with four sets of bolts, and the top of the base plate 220 has threaded holes at the positions corresponding to the bolts.

[0024] It facilitates the installation of components such as suction cup 231 and I-ring 260, providing convenience for subsequent maintenance.

[0025] The handle 280 is connected to the panel 210 by a bearing, and scale lines are engraved on the top of the panel 210 and the outer wall of the handle 280. By comparing the scale lines, a certain radial distance is determined by the rotation of the handle 280 to pull the four suction cups 231, thereby achieving precise adjustment of the suction cups 231.

[0026] A limiting groove is provided at the bottom of the panel 210 where it contacts the four sets of traction plates 270, and a reversing wheel 273 is provided in the limiting groove at the inside corner of the cable 271.

[0027] A limiting groove is provided at the bottom of the panel 210 where it contacts the four sets of traction plates 270. The limiting groove is used to constrain the movement path of the traction plates 270, ensuring that the traction plates 270 will not deviate from the predetermined trajectory during movement, thereby improving the accuracy and stability of the suction cup 231 when adjusting the spacing. Furthermore, a reversing wheel 273 is rotatably provided in the inner corner of the limiting groove. The reversing wheel 273 can reduce the friction between the traction plates 270 and the inner wall of the limiting groove, making the traction plates 270 move more smoothly. At the same time, the reversing wheel 273 can also guide the movement direction of the traction plates 270, ensuring that the traction plates 270 can move along the correct path.

[0028] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A bottle cap robot for ejecting from an injection molding machine, comprising a three-axis robotic arm (100), said three-axis robotic arm (100) including an X-axis arm (110), a Y-axis arm (120) and a Z-axis arm (130), characterized in that: The bottom of the Y-axis arm (120) is equipped with a suction cup assembly (200) capable of adsorbing bottle caps. A positioning plate (140) is fixed on the outer wall of the Y-axis arm (120). A drive motor (150) capable of pulling the suction cup assembly (200) to rotate is installed on one side of the positioning plate (140). The suction cup assembly (200) includes a panel (210) connected to a positioning plate (140). The bottom of the panel (210) is provided with a base plate (220). The bottom of the base plate (220) is equipped with four sets of suction cup components (230) that can slide radially. A diverter cylinder (240) connected to the fish bottom plate (220) is provided at the center of the four sets of suction cup components (230). The outer wall of the diverter cylinder (240) is provided with an air pipe (250) connected to an external air pump. Each set of suction cup components (230) is connected to the diverter cylinder (240) by a telescopic tube. The bottom of the base plate (220) is reserved with a stroke groove (221) corresponding to each set of telescopic tubes. The suction cup component (230) slides in the stroke groove (221) and is connected to the telescopic tube.

2. The bottle cap robot for ejecting molds in an injection molding machine according to claim 1, characterized in that: The telescopic tube includes an inner cylinder (232) and an outer cylinder (234). The inner cylinder (232) is sleeved inside the outer cylinder (234) and connected to the suction cup component (230). The end of the outer cylinder (234) is connected to the diverter cylinder (240). The inner cylinder (232) and the outer cylinder (234) are provided with a positioning shaft fixed to the inner wall of the stroke groove (221) at the axial position. The inner cylinder (232) can slide axially along the outer wall of the positioning shaft.

3. A bottle cap robot for ejecting molds in an injection molding machine according to claim 2, characterized in that: The suction cup component (230) includes a suction cup (231) connected to the inner cylinder (232). A positioning ring (239) is fixed inside the suction cup (231). A connecting tube (236) is slidably sleeved inside the positioning ring (239). A spring (238) fixed to the bottom of the fish positioning ring (239) is sleeved on the outer wall of the connecting tube (236). Multiple sets of air holes (237) are opened on the outer wall of the connecting tube (236) along its circumference. A sealing gasket (235) that can block the internal channel of the suction cup (231) is fixed at the bottom of the connecting tube (236).

4. A bottle cap robot for ejecting molds in an injection molding machine according to claim 3, characterized in that: The outside of the diverter (240) is provided with an I-shaped ring (260) rotatably connected to the bottom of the panel (210). Above each set of suction cups (231) is a traction plate (270) fixed to the outer wall of the inner cylinder (232). The top of the traction plate (270) is fixed with a magnet (272) that can be attracted to the bottom of the panel (210). The outer wall of the magnet (272) is provided with a cable (271) fixed to the curved outer wall of the I-shaped ring (260). The top of the panel (210) is provided with a handle disc (280) that can pull the I-shaped ring (260) to rotate.

5. A bottle cap robot for ejecting molds in an injection molding machine according to claim 1, characterized in that: The panel (210) is fixed to the base plate (220) by four sets of bolts, and the top of the base plate (220) is provided with threaded holes at the positions corresponding to the bolts.

6. A bottle cap robot for ejecting molds in an injection molding machine according to claim 4, characterized in that: The handle (280) is connected to the panel (210) by bearings, and the top of the panel (210) and the outer wall of the handle (280) are engraved with scale lines.

7. A bottle cap robot for ejecting molds in an injection molding machine according to claim 1, characterized in that: A limiting groove is provided at the bottom of the panel (210) where it contacts the four sets of traction plates (270), and a reversing wheel (273) is provided in the limiting groove at the inside corner of the cable (271).

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