A plastic cup production device

Abstract

The utility model relates to a kind of plastic cup production equipment.It includes: turnover shaft, turnover frame and stacking mechanism, the stacking mechanism is constituted by electric push rod, lifting plate, several round table seats and several guide rods, the periphery of each round table seat is correspondingly provided with three to four guide rods in circumferential array distribution, and define out stacking cavity, the outer contour of stacking cavity is the inscribed circle of these guide rods, the size of this inscribed circle is slightly larger than the maximum outer diameter of plastic cup, the lifting plate is slidably connected with the guide rod;Small size end of the round table seat is opposite to the lifting plate, the round table seat is provided with injection hole and exhaust hole through both ends thereof, the injection hole is connected with flexible air pipe, and the flexible air pipe is connected with high-pressure gas pump assembly.The utility model is matched with automatic pick-up manipulator, can efficiently stack plastic cup, the stacking interval of plastic cup is controllable and uniform, and after stacking is completed, the stacked plastic cup can be pushed out automatically.

Description

Technical Field

[0001] This utility model relates to an automated device, and more particularly to a plastic cup production device. Background Technology

[0002] The molding process for plastic cups is generally divided into two types: injection molding and blow molding. Injection molding is generally suitable for cups made of PP / PC materials. Its production process is as follows: melt injection, segmented heating of the barrel (PP: 170-180℃, PC: 280-320℃), screw pressurization (25-80MPa) to inject the melt into the mold; mold shaping, pressure holding stage to compensate for shrinkage, cooling system (water temperature 10-15℃) for rapid solidification, cycle approximately 15-60 seconds; demolding and removal, ejector rod pushes out the cup body, and automated robotic arm transfers it. These plastic cups subsequently require trimming, deburring, surface printing, sterilization, and packaging. In the sterilization and packaging stage, sterilized plastic cups need to be stacked in fixed quantities before packaging. Therefore, a highly efficient and reliable automated plastic cup stacking equipment needs to be developed. Summary of the Invention

[0003] This invention provides a plastic cup production equipment, which solves the problem in the prior art that requires automated equipment to efficiently and reliably stack plastic cups.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: A plastic cup production equipment includes: a horizontally arranged flipping shaft, a flipping frame fixedly connected to the flipping shaft, and a stacking mechanism disposed on the flipping frame. The stacking mechanism consists of an electric push rod disposed on the flipping frame, a lifting plate connected to a telescopic rod of the electric push rod, a plurality of truncated cones disposed on the lifting plate, and a plurality of guide rods fixed on the flipping frame. The outer contour of the truncated cones is adapted to the inner contour of the plastic cup. Each truncated cone has three to four guide rods arranged in a circumferential array around its periphery, defining a stacking cavity. The outer contour of the stacking cavity is the inscribed circle of these guide rods, and the size of the inscribed circle is slightly larger than the maximum outer diameter of the plastic cup. The lifting plate slides with the guide rods. The smaller end of the truncated cone faces away from the lifting plate. The truncated cone is provided with an air injection hole and an air exhaust hole penetrating its two ends. The air injection hole is connected to a flexible air tube, and the flexible air tube is connected to a high-pressure air pump assembly.

[0005] This invention requires an automated picking robot to stack plastic cups. A pneumatic suction cup type is recommended for this robot. The automated picking robot can pick up the plastic cups to be stacked from other workstations and place them onto this invention. The number and spacing of the plastic cups that the automated picking robot can pick up correspond one-to-one with the stacking cavities on this invention. The flipping shaft of this invention is fixed to the base and driven by a motor. When stacked, the flipping frame is fixed in a horizontal position. At this time, the telescopic rod of the electric pusher is fully extended, and the truncated cone is in a high position along with the lifting plate. Then, the automated picking robot puts the plastic cups into the stacking cavity in an inverted state until the plastic cups abut against the truncated cone. Then, the automated picking robot releases the plastic cups and performs the next handling action. The electric pusher retracts its telescopic rod according to a preset program. The retraction stroke is the stacking spacing of the plastic cups. Since the height at which the automated picking robot places the plastic cups is fixed each time, the retraction of the electric pusher allows the plastic cups to be stacked continuously at a fixed spacing. When the plastic cups in this invention are stacked to a preset number, the flipping shaft rotates about 90°. At this time, the stacking mechanism tends to be flat. Then, the telescopic rod of the electric pusher is fully extended, pushing the stacked plastic cups out of the stacking cavity. Along this path, a guide plate or conveyor belt needs to be set up to receive the stacked plastic cups. After the stacking mechanism pushes the plastic cups out completely, the high-pressure air pump assembly briefly vents the soft air tube, and the flipping shaft flips back to its original position.

[0006] When the flexible air tube is ventilated, the high-pressure airflow will blow the plastic cups off the truncated cone, thus pushing them away from the stacking cavity. The vent hole serves to release air when the truncated cone engages with the first plastic cup, preventing high pressure from forming inside the container during this engagement. The guide rod in this invention not only guides the sliding of the lifting plate but also guides and constrains the position of the plastic cups.

[0007] Furthermore, a positioning plate is fixedly connected to the other end of all the guide rods. The positioning plate has several discharge ports that communicate with the stacking cavity. The function of the positioning plate is to fix all the guide rods and ensure that all the guide rods remain parallel.

[0008] Furthermore, a cover plate is fixed to the positioning plate, and the cover plate is provided with several guide sleeves. A guide port communicating with the discharge port is formed inside the guide sleeve, and the guide port has a funnel-shaped structure. The function of the guide sleeve is to guide the plastic cup grasped by the automated picking robot arm, ensuring that the plastic cup can slide accurately and smoothly from the guide port into the discharge port.

[0009] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model is equipped with an automated picking robot, which can efficiently stack plastic cups. The stacking spacing of the plastic cups is controllable and uniform, and after stacking, the stacked plastic cups can be pushed out autonomously. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Appendix Figure 2 This is a schematic diagram of the structure of Embodiment 1 in a stacked state;

[0012] Appendix Figure 3 This is a schematic diagram of the structure of Example 1 when it is in the feeding state. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0015] Example 1: See Figure 1 and Figure 2 A plastic cup production device includes: a horizontally arranged flipping shaft 100, a flipping frame 200 fixedly connected to the flipping shaft, and a stacking mechanism 300 disposed on the flipping frame. The stacking mechanism consists of an electric push rod 10 disposed on the flipping frame, a lifting plate 20 connected to a telescopic rod of the electric push rod, three truncated cones 30 disposed on the lifting plate, and 12 guide rods 40 fixed on the flipping frame. The outer contour of the truncated cones is adapted to the inner contour of the plastic cup. Each truncated cone has four guide rods arranged in a circumferential array around its periphery, defining a stacking cavity 50. The outer contour of the stacking cavity is the inscribed circle of the four guide rods. The size of the inscribed circle is slightly larger than the maximum outer diameter of the plastic cup. The lifting plate slides with the guide rods. The smaller end of the truncated cone faces away from the lifting plate. The truncated cone has an air injection hole 31 and an exhaust hole 32 penetrating through its two ends. The air injection hole is connected to a flexible air tube 33, and the flexible air tube is connected to a high-pressure air pump assembly.

[0016] See Figure 2 and Figure 3This embodiment is equipped with an automated picking robot 400, which is recommended to use a pneumatic suction cup method for picking up materials. The automated picking robot can pick up plastic cups to be stacked from other workstations and place them onto this embodiment. The number and spacing of the plastic cups that the automated picking robot can pick up correspond one-to-one with the stacking cavities in this embodiment. The flipping shaft in this embodiment is fixed to the base and driven by a motor. When stacked, the flipping frame is fixed in a horizontal position. At this time, the telescopic rod of the electric pusher is fully extended, and the truncated cone is in a high position along with the lifting plate. Then, the automated picking robot puts the plastic cups into the stacking cavity in an inverted state until the plastic cups abut against the truncated cone. Then, the automated picking robot releases the plastic cups and performs the next handling action. The electric pusher retracts its telescopic rod according to a preset program. The retraction stroke is the stacking distance of the plastic cups. Since the height at which the automated picking robot places the plastic cups is fixed each time, the retraction of the electric pusher allows the plastic cups to be stacked continuously at a fixed distance. When the plastic cups in this embodiment are stacked to a preset number, the flipping shaft rotates about 90°. At this time, the stacking mechanism tends to be flat. Then, the telescopic rod of the electric pusher is fully extended, pushing the stacked plastic cups out of the stacking cavity. On this path, a guide plate 500 is set to receive the stacked plastic cups. After the stacking mechanism pushes the plastic cups out completely, the high-pressure air pump assembly briefly vents the soft air tube, and the flipping shaft flips back to its original position.

[0017] When the flexible air tube is ventilated, the high-pressure airflow will blow the plastic cups off the truncated cone, thus pushing them away from the stacking cavity. The vent hole serves to release air when the truncated cone engages with the first plastic cup, preventing high pressure from forming inside the container during this engagement. In this embodiment, the guide rod not only guides the sliding of the lifting plate but also guides and constrains the position of the plastic cups.

[0018] See Figure 1 The other end of all the guide rods is fixedly connected to a positioning plate 60, which has three discharge ports 61 that communicate with the stacking cavity. The function of the positioning plate is to fix all the guide rods and ensure that all the guide rods remain parallel.

[0019] See Figure 1 and Figure 2 The positioning plate is also fixed with a cover plate 70, which has three guide sleeves 71. The guide sleeves form a guide port 72 that communicates with the material discharge port. The guide port has a funnel-shaped structure. The function of the guide sleeves is to guide the plastic cups held by the automated picking robot arm, ensuring that the plastic cups can slide accurately and smoothly from the guide port into the material discharge port.

[0020] See Figure 1 Four linear bearings 21 that slide with the guide rod are fixed on the lifting plate; a vertical mounting plate 210 is fixed on the tilting frame, and the tilting shaft is vertically fixed on the mounting plate.

[0021] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A plastic cup production equipment, characterized in that, include: The system comprises a horizontally arranged flipping shaft, a flipping frame fixedly connected to the flipping shaft, and a stacking mechanism on the flipping frame. The stacking mechanism consists of an electric push rod on the flipping frame, a lifting plate connected to a telescopic rod of the electric push rod, several truncated cones on the lifting plate, and several guide rods fixed to the flipping frame. Each truncated cone has three to four guide rods arranged in a circumferential array around its periphery, defining a stacking cavity. The lifting plate slides in conjunction with the guide rods. The smaller end of each truncated cone faces away from the lifting plate. The truncated cone has an air injection hole and an air exhaust hole extending through both ends. The air injection hole is connected to a flexible air tube, which is connected to a high-pressure air pump assembly.

2. The plastic cup production equipment according to claim 1, characterized in that: The other end of all the guide rods is fixedly connected to a positioning plate, which has several discharge ports that communicate with the stacking cavity.

3. The plastic cup production equipment according to claim 2, characterized in that: The positioning plate is also fixed with a cover plate, and the cover plate is provided with several guide sleeves. A guide port communicating with the material drop port is formed in the guide sleeve, and the guide port has a funnel-shaped structure.

4. The plastic cup production equipment according to claim 1, characterized in that: The lifting plate is fixed with several linear bearings that slide in cooperation with the guide rod.

5. The plastic cup production equipment according to claim 1, characterized in that: A vertical mounting plate is fixed on the flipping frame, and the flipping shaft is vertically fixed on the mounting plate.

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