Method for taking and placing packaged finished products of pourable plastic cups
By simplifying the handling process of easily tipping plastic cups into two steps, each completed by different equipment, the problem of tipping over during transport is solved, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANTOU DANENG LIGHT IND MASCH CO LTD
- Filing Date
- 2022-06-17
- Publication Date
- 2026-06-12
AI Technical Summary
In existing technologies, easily tipped plastic cups are prone to tipping over during transportation, resulting in low production efficiency. Furthermore, the process of picking up, flipping, and placing cups using a general-purpose robotic arm involves numerous steps and is time-consuming, making it difficult to meet the needs of large-scale industrial production.
The process is divided into two main steps: first, the mold is inserted from the upper right to the lower left to pick up the easily tipping plastic cup, then it is rotated clockwise at a certain angle and moved to the upper right. Finally, it is rotated clockwise to an inverted state and placed on the conveyor belt. This is simplified into two main steps, which are completed by different equipment.
The six-step processing procedure has been simplified to two steps, significantly reducing processing time, improving work efficiency, and meeting the needs of large-scale industrial production.
Smart Images
Figure CN114919980B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a method for transferring easily tiltable plastic cup packaging products, and more specifically to a method for picking up and placing easily tiltable plastic cup packaging products that can be flipped 180 degrees to an inverted state and then transferred to a conveyor belt. Background Technology
[0002] An easily tipped plastic cup refers to a plastic cup whose height to mouth diameter ratio is greater than 1.5:1, and whose mouth diameter is significantly larger than its bottom diameter.
[0003] After the aforementioned easily tipping plastic cups are filled with materials on the filling and packaging machine and the cup openings are sealed with sealing film, the resulting easily tipping plastic cup packaging products need to be sent out via conveyor belt for subsequent processing steps such as sorting and boxing.
[0004] However, due to its structure being larger at the top and smaller at the bottom, and having a high center of gravity and a small bottom area, easily tipped plastic cup packaging products are prone to tipping over when placed on the conveyor belt at high speeds. Even if some easily tipped plastic cup packaging products do not tip over when placed on the conveyor belt, they are prone to tipping over during the conveying process.
[0005] To solve the above problems, the commonly used method is to flip the easily tipping plastic cup packaging 180 degrees, placing it in an inverted state before putting it onto the conveyor belt. This process is referred to as cup picking, flipping, and placing in this manner. Because the diameter of the cup opening is relatively large, and its area is much larger than the bottom, and because the center of gravity of the inverted easily tipping plastic cup packaging is relatively low, it is less likely to tip over on the conveyor belt.
[0006] However, the applicant found that the commonly used general-purpose robotic arms require six steps to complete the cup-picking, flipping, and placing process: 1. The robotic arm moves horizontally to above the mold inside the filling and packaging machine; 2. The robotic arm moves vertically downward and picks up the easily tipping plastic cup packaged product inside the mold; 3. The robotic arm removes the easily tipping plastic cup packaged product vertically upward from the mold; 4. The robotic arm, carrying the easily tipping plastic cup packaged product, moves horizontally from above the mold to above the conveyor belt outside the filling and packaging machine; 5. The robotic arm flips the easily tipping plastic cup packaged product 180 degrees, making it inverted; 6. The robotic arm, carrying the easily tipping plastic cup packaged product, moves vertically downward and places it on the conveyor belt. After processing, the robotic arm returns to its original position. This method involves numerous steps, consumes a lot of time, and is inefficient. Other equipment (including the filling and packaging machine, conveyor belt, and other processing equipment at different stages of the production line) must wait for the robotic arm, making it difficult to meet the needs of large-scale industrial production. Summary of the Invention
[0007] The purpose of this invention is to provide a method for handling easily tiltable plastic cup packaging products. This method simplifies processing steps, significantly reduces the time required for handling cups, and effectively improves work efficiency. The technical solution adopted is as follows: A method for handling easily tiltable plastic cup packaging products, characterized by including the following steps:
[0008] (1) The mold located at the outlet of the filling and packaging machine is rotated clockwise at an angle a from the upper right to the lower left, and the easily tilted plastic cup packaged product is picked up. Then, the easily tilted plastic cup packaged product is moved to the upper right and away from the mold.
[0009] (2) Rotate the easily tipping plastic cup packaging product clockwise by angle b to flip it into an inverted state and move the easily tipping plastic cup packaging product onto the conveyor belt while flipping it.
[0010] When the mold is tilted outwards at a certain angle, the finished plastic cup packaging is removed from the mold. Therefore, the removed plastic cup packaging not only rises to a certain height but also moves a certain distance outwards from the filling and packaging machine. This method simplifies the existing six processing steps into two, greatly reducing the number of steps and effectively improving work efficiency.
[0011] In a preferred embodiment, angle 'a' is an acute angle less than 90 degrees.
[0012] A better solution is that the angle 'a' ranges from 30 to 60 degrees.
[0013] In a preferred embodiment, angle b is an acute angle less than 90 degrees.
[0014] A better solution is that the sum of angle a and angle b is in the range of 90-120 degrees.
[0015] In a preferred embodiment, steps (1) and (2) are performed using two different devices to complete their respective processing steps.
[0016] A better solution is to use a reciprocating motion mechanism to drive the vacuum suction cup to move in step (1), so that the vacuum suction cup can pick up the finished product of the easily tilted plastic cup packaging in the mold.
[0017] A better solution is that in step (2), an inclined swing frame with a receiving slot is used to receive the easily tipped plastic cup packaging product sucked by the vacuum suction cup, and the easily tipped plastic cup packaging product is flipped to an inverted state and placed on the conveyor belt by rotating the inclined swing frame.
[0018] In a better solution, in step (2), the tilting swing frame is rotated by the gravity of the received easily tipped plastic cup packaging product itself.
[0019] In a better solution, in step (2), after the easily tipped plastic cup packaging product is flipped to an inverted state and placed on the conveyor belt, the tilting swing frame returns to its original position by the elastic force of the return spring.
[0020] In another, more efficient solution, in step (2), the tilting swing frame is rotated by a reciprocating motion mechanism. Therefore, after the easily tipped plastic cup packaging product is flipped to an inverted state and placed on the conveyor belt, the tilting swing frame returns to its original position by the reciprocating motion mechanism driving the tilting swing frame to rotate.
[0021] A better solution is to use a cylinder as the reciprocating motion mechanism.
[0022] A better solution is a reciprocating motion mechanism that includes a servo motor, a lead screw, and a nut. The output shaft of the servo motor is connected to the lead screw, and the nut is fitted onto the lead screw.
[0023] The beneficial effects of this invention compared to the prior art are that, since the process of taking, flipping and placing the cup is divided into two processing steps, and the two processing steps can be carried out simultaneously and cooperate with each other, the processing steps are simplified, the time required for taking and placing the cup is greatly reduced, and the work efficiency is effectively improved. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of two different devices used in one embodiment of the present invention;
[0025] Figure 2 yes Figure 1The right enlarged view of the second reciprocating motion mechanism and the driving tilting swing frame in the embodiment shown. Detailed Implementation
[0026] The method for picking up and placing the finished product of the easily tilted plastic cup in one embodiment of this application includes the following steps: (1) extending from the upper right to the lower left into the mold 1 located at the outlet of the filling and packaging machine, which is rotated clockwise at an angle a from the vertical direction, picking up the finished product of the easily tilted plastic cup 2, and then moving the finished product of the easily tilted plastic cup 2 to the upper right and away from the mold 1.
[0027] (2) Rotate the easily tipped plastic cup packaging product 2 clockwise by angle b to flip it to an inverted state and move it onto the conveyor belt 3 while flipping it.
[0028] Where angle a is the angle of rotation in the clockwise direction in the vertical direction.
[0029] When mold 1 is tilted outward at an angle, the finished plastic cup packaging is removed from mold 1. Therefore, the removed finished plastic cup packaging not only rises to a certain height but also moves a certain distance outward from the filling and packaging machine. This method simplifies the existing six processing steps into two, greatly reducing the number of processing steps and effectively improving work efficiency.
[0030] Angle a is an acute angle less than 90 degrees. Angle b is an acute angle less than 90 degrees. Angle b is the angle at which the finished plastic cup packaging product removed from the mold in step (1) continues to rotate from angle a (which refers to the angle between the central axis of the finished plastic cup packaging product and the vertical direction). The sum of angle a and angle b is in the range of 90-120 degrees.
[0031] like Figure 1 As shown, in one alternative embodiment, angle a is 45 degrees and angle b is 45 degrees.
[0032] In one alternative embodiment, angle a is 30 degrees and angle b is 60 degrees.
[0033] In one alternative embodiment, angle a is 60 degrees and angle b is 30 degrees.
[0034] In one alternative embodiment, angle a is 45 degrees and angle b is 75 degrees.
[0035] In one alternative embodiment, angle a is 30 degrees and angle b is 70 degrees.
[0036] In one alternative embodiment, angle a is 60 degrees and angle b is 50 degrees.
[0037] like Figure 1, 2 As shown, steps (1) and (2) are completed using two different devices.
[0038] In an alternative embodiment, in step (1), a first reciprocating motion mechanism 5 drives the vacuum suction cup 4 to move, allowing the vacuum suction cup 4 to pick up the easily tipped plastic cup packaged product 2 from the mold 1. The number of vacuum suction cups 4 and the number of easily tipped plastic cup packaged product 2 in one mold 1 are the same and correspond one-to-one, both being six.
[0039] In an alternative embodiment, in step (2), an inclined swing frame 7 with a receiving slot 6 is used to receive the easily tipped plastic cup packaging product 2 sucked up by the vacuum suction cup 4, and the inclined swing frame 7 is rotated (both the inclined swing frame 7 and the receiving slot 6 are rotated by an angle b, such as...). Figure 1 (As shown) This process flips the easily tipped plastic cup packaging product 2 to an inverted state and places it onto the conveyor belt 3. The receiving slots 6 have the same number of easily tipped plastic cup packaging products 2 as one mold 1, and they correspond one-to-one, with six in each slot.
[0040] In an alternative embodiment, in step (2), the tilting swing frame 7 is rotated by the gravity of the received easily tipped plastic cup packaging product 2.
[0041] In step (2), after the easily tipped plastic cup packaging product 2 is flipped to an inverted state and placed on the conveyor belt 3, the tilting swing frame 7 returns to its original position by the elastic force of the return spring.
[0042] like Figure 1 , 2 As shown, in an alternative embodiment, in step (2), the tilting swing frame 7 is rotated by a second reciprocating motion mechanism 8. Therefore, after the easily tipped plastic cup packaging product 2 is flipped to an inverted state and placed on the conveyor belt 3, the tilting swing frame 7 returns to its original position by the second reciprocating motion mechanism 8 driving the tilting swing frame 7 to rotate.
[0043] like Figure 1 , 2 As shown, in one alternative embodiment, both the first reciprocating motion mechanism 5 and the second reciprocating motion mechanism 8 are cylinders.
[0044] In an alternative embodiment, both the first reciprocating motion mechanism 5 and the second reciprocating motion mechanism 8 include a servo motor, a lead screw, and a nut. The output shaft of the servo motor is connected to the lead screw, and the nut is fitted onto the lead screw. Since its structure is relatively simple, it will not be described in detail here.
[0045] The following is combined with Figure 1 , 2The working process is further described as follows: The tilting swing frame 7 is rotatably mounted on the rotating shaft, and the piston shaft of the second reciprocating motion mechanism 8 (cylinder) is connected to the tilting swing frame 7 and drives the tilting swing frame 7 to rotate.
[0046] A chain conveyor belt (not shown) carries multiple molds 1 in an intermittent motion along a circular route in a vertical plane.
[0047] The following is a detailed description of the operation of each piece of equipment: 1. The chain conveyor belt carries multiple molds 1 in an intermittent motion. When the motion stops, one mold 1 stops on the path of the first reciprocating motion mechanism 5 carrying the vacuum suction cup 4. That is, the mold 1 is located at the position of the filling and packaging machine outlet, which is rotated clockwise by an angle a from the vertical direction.
[0048] 2. The first reciprocating motion mechanism 5, carrying six vacuum suction cups 4, extends into the mold 1 from the upper right to the lower left, picks up six easily tilted plastic cup packaged products 2, and then moves the easily tilted plastic cup packaged products 2 to the upper right and leaves the mold 1.
[0049] 3. The six vacuum suction cups 4 stop working, and the six easily tilted plastic cup packaged products 2 fall into the six receiving slots 6 of the inclined swing frame 7 located below, with the cup rims of each easily tilted plastic cup packaged product 2 hanging on the edge of the corresponding receiving slot 6; at the same time, the chain conveyor belt moves all the molds 1, moving the next mold 1 (which contains six easily tilted plastic cup packaged products 2) and stopping it on the path of the first reciprocating motion mechanism 5 moving with the vacuum suction cups 4. That is to say, during the working process, action 1 and action 3 are performed synchronously.
[0050] 4. The piston shaft of the second reciprocating motion mechanism 8 (cylinder) drives the tilting swing frame 7 to rotate clockwise from the vertical direction by an angle a (45 degrees) to an angle b (45 degrees) and stop rotating. The six easily tiltable plastic cup packaging products 2 rotate to the inverted state and move onto the conveyor belt 3 while being tilted (due to inertia).
[0051] 5. Finally, the piston shaft of the second reciprocating motion mechanism 8 (cylinder) drives the tilting swing frame 7 to rotate in the opposite direction and return to its original position.
[0052] When the second reciprocating motion mechanism 8 is working, the first reciprocating motion mechanism 5, carrying the six vacuum suction cups 4, performs action 2 again. In other words, actions 2 and 4 are performed synchronously.
[0053] The specific actions mentioned above are Figure 1 , 2 The detailed analysis of the actions of each piece of equipment during the production process in the illustrated embodiment allows for modifications to each action based on the different equipment, as long as the same processing steps are used.
[0054] In summary, since step (1), i.e. the cup-taking step, and step (2), i.e. the cup-turning step, are completed using different equipment, the two steps can be carried out simultaneously and cooperate with each other, which greatly saves time and effectively improves work efficiency.
[0055] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this invention are included within the scope of protection of this invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this invention or exceed the scope defined in these claims, all of which should fall within the scope of protection of this invention.
Claims
1. A method for handling and placing finished products in easily tipped-over plastic cup packaging, characterized in that: Includes the following steps: (1) The mold located at the outlet of the filling and packaging machine is rotated clockwise at an angle a from the upper right to the lower left, and the easily tilted plastic cup packaged product is picked up. Then, the easily tilted plastic cup packaged product is moved to the upper right and away from the mold. (2) Rotate the easily tipping plastic cup packaging product clockwise by angle b to flip it to an inverted state and move the easily tipping plastic cup packaging product onto the conveyor belt while flipping it; Steps (1) and (2) are completed using two different devices. In step (1), a reciprocating motion mechanism is used to drive the vacuum suction cup to move, so that the vacuum suction cup can pick up the finished product of the easily tilted plastic cup packaging in the mold; In step (2), an inclined swing frame with a receiving slot is used to receive the easily tipped plastic cup packaging product sucked up by the vacuum suction cup, and the easily tipped plastic cup packaging product is flipped to an inverted state and placed on the conveyor belt by rotating the inclined swing frame.
2. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 1, characterized in that: The angle 'a' is an acute angle less than 90 degrees.
3. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 2, characterized in that: The angle range of 'a' is 30-60 degrees.
4. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 2, characterized in that: The angle b is an acute angle less than 90 degrees.
5. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 4, characterized in that: The sum of angle a and angle b is in the range of 90-120 degrees.
6. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 1, characterized in that: In step (2), the tilting swing frame is rotated by the gravity of the received easily tipped plastic cup packaging product.
7. The method for handling and placing finished products of easily tipped-over plastic cups as described in claim 1, characterized in that: In step (2), the tilting swing frame is rotated by a reciprocating motion mechanism.