Container mouth preparation mechanism of intelligent paper container forming machine

Abstract

This utility model relates to a container mouth preparation mechanism for an intelligent paper container forming machine. An intermittent feeding turntable is equipped with a first pre-winding station, a second pre-winding station, and a final winding station along the rotation direction. The first pre-winding station includes a first pre-winding rotary mold, the second pre-winding station includes a second pre-winding rotary mold, and the final winding station is equipped with a final winding device, including a final winding fixed mold and a heating component connected to the final winding fixed mold. The two rotary pre-winding stages and the fixed, heated final winding stage work together to roll the container mouth multiple times at different stations. The two pre-winding stages can gradually complete the rolling process in stages, and the pre-winding effect is better in the rotary state. The heated final winding stage keeps the rolled edge of the two pre-winding stages in a fixed state, ensuring smooth completion of the rolling process. This mechanism is suitable for high-speed forming operations, and even short periods of time spent at corresponding stations can coordinate with each other to roll the mouth, resulting in a good rolling effect.

Description

Technical Field

[0001] This utility model relates to intelligent forming equipment for paper containers such as paper cups and bowls. Background Technology

[0002] In intelligent paper container forming equipment such as intelligent paper cup machines, the cup bottom is formed on the male mold feeding turntable, and the cup mouth (i.e., container mouth) is formed on the female mold feeding turntable. During the intermittent indexing rotation of the female mold feeding turntable, the cup receiving ring on it carries the paper container (such as a paper cup) and stops at various workstations to complete the preparation of the container mouth (such as the cup mouth) until the final finished paper container is output.

[0003] During the container mouth preparation process, the paper container mouth needs to be rolled. Conventional rolling methods are ineffective, resulting in poor quality and a high risk of defects. Furthermore, if defective products are not removed, they can mix with good products, making subsequent separation difficult and leading to a situation where a few defective products are mixed into a single batch of paper containers, severely impacting product quality. High-speed operation results in short dwell times at the rolling station, making it difficult to complete the rolling process and leading to relatively poor rolling quality. Additionally, the end of the tube formed by the paper sheets (which will later become the container mouth) may have burrs or uneven cuts, and the thin, sharp paper sheets are highly susceptible to chipping and tearing during direct rolling. Utility Model Content

[0004] In view of the technical problems existing in the background art, the present invention aims to provide a container mouth preparation mechanism for a paper container intelligent forming machine that improves the container mouth rolling effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a container mouth preparation mechanism of a paper container intelligent forming machine, including an intermittent feeding turntable, the feeding turntable being rotatable around a vertical axis, characterized in that: the feeding turntable is equipped with a first pre-winding station, a second pre-winding station and a final winding station along the rotation direction, the first pre-winding station is equipped with a first pre-winding device, the first pre-winding device including a first pre-winding rotating mold, the second pre-winding station is equipped with a second pre-winding device, the second pre-winding device including a second pre-winding rotating mold, and the final winding station is equipped with a final winding device, the final winding device including a final winding fixing mold, the final winding device also including a heating component, the heating component being connected to the final winding fixing mold.

[0006] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0007] For example, the feeding turntable is provided with receiving molds for receiving containers distributed along the circumference. The receiving molds are evenly arranged on the feeding turntable. The receiving molds on the feeding turntable have rotation and stopping positions at each station. The first pre-winding rotating mold is set to move forward and backward in the direction of the container opening. The second pre-winding rotating mold is set to move forward and backward in the direction of the container opening. The final winding fixing mold is set to move forward and backward in the direction of the container opening.

[0008] For example, the receiving mold on the feeding turntable adopts a cup-receiving ring, with the inlet and outlet of the cup-receiving ring facing upwards, and the receiving mold on the feeding turntable has a corresponding rotation and stopping position at each station.

[0009] The first pre-winding rotary die, the second pre-winding rotary die, and the final winding fixing die are respectively arranged on the upper side of the feeding turntable. The first pre-winding rotary mold, the second pre-winding rotary mold, and the final winding fixed mold are respectively set to move forward and backward in the direction of the container opening in a lifting manner.

[0010] For example, the first pre-winding device, the second pre-winding device, and the final winding device are mounted on the winding opening lifting mounting plate, which is positioned above the feeding turntable.

[0011] For example, the first pre-winding device further includes a first rotating shaft, and the first pre-winding rotating mold is driven and connected to the first rotating shaft; the second pre-winding device further includes a second rotating shaft, and the second pre-winding rotating mold is driven and connected to the second rotating shaft.

[0012] Further optimization involves using a low-speed pre-winding rotary mold and a high-speed pre-winding rotary mold, with the first pre-winding rotary mold rotating at a lower speed than the second. For example, a large drive wheel is mounted on the first rotating shaft, and a small drive wheel is mounted on the second rotating shaft. Both the large and small drive wheels are connected to the pre-winding motor via a drive belt. A feeding turntable is mounted on a vertical rotating shaft, which is connected to a servo motor. An intermittent feeding turntable is also connected to the vertical rotating shaft.

[0013] Alternatively, the rotational speeds of the first pre-winding rotary die and the second pre-winding rotary die can be set to the same.

[0014] For example, the first pre-winding rotary mold, the second pre-winding rotary mold, and the final winding fixed mold are each provided with corresponding matching roll opening grooves.

[0015] In addition, the feeding turntable is also equipped with an inspection station after the rim is rolled; for example, the inspection station is equipped with an inspection device, which includes a cup rim inspection camera assembly, and the cup rim inspection camera assembly is configured above the feeding turntable at the inspection station.

[0016] For example, the detection device also includes a cup bottom detection camera assembly, which is positioned below the feeding turntable at the detection station.

[0017] For example, the following are arranged along the rotation direction of the feeding turntable: feeding station, idle avoidance station, container mouth oiling station, first pre-winding station, second pre-winding station, final winding station, inspection station, waste discharge station and discharge station; Nine receiving molds are evenly arranged along the circumference of the feeding turntable. The receiving molds are cup-shaped, and the receiving molds on the feeding turntable have rotating and stopping positions at each station.

[0018] The beneficial effects of this utility model are as follows: the container mouth preparation mechanism of the intelligent paper container forming machine is equipped with two rotating pre-winding stages and one fixed and heated final winding stage. In conjunction with the multiple winding of the container mouth (such as the mouth of a paper cup or bowl) at different workstations, the two pre-winding stages can gradually complete the winding in stages. The pre-winding effect of the paper in the rotating state is better. The fixed mold of the final winding stage in the heated state can keep the edge of the mouth after the two pre-winding stages in a fixed state, ensuring that the winding is completed smoothly. It can be adapted to high-speed forming operation. Even when it stops at the corresponding workstation for a short time, it can work together to complete the winding smoothly. The winding effect is also relatively good (for example, the winding is fuller, the winding quality is relatively better, and the roll diameter and fit can meet the requirements better). Attached Figure Description

[0019] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram showing the hidden part of the structure.

[0022] In the picture: 1. Feeding turntable; 11. Feeding station; 12. Idle clearance station; 13. Oil dipping station at container opening; 14. First pre-winding station; 15. Second pre-winding station; 16. Final winding station; 17. Inspection station; 18. Waste discharge station; 19. Discharge station; 2. Receiving mold; 20. Receiving ring; 4. First pre-winding device; 40. First pre-winding rotary mold; 41. First rotating shaft; 42. Large transmission wheel; 456. Roller opening lifting mounting plate; 5. Second pre-winding device; 50. Second pre-winding rotary mold; 52. Second rotating shaft; 53. Small transmission wheel; 6. Final winding device; 60. Final winding fixing mold; 71. Cup rim detection camera assembly; 72. Cup bottom detection camera assembly. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Referring to the accompanying drawings, the container mouth preparation mechanism of the paper container intelligent forming machine in this embodiment includes an intermittent feeding turntable 1. The feeding turntable 1 is arranged to rotate (intermittently) around a vertical axis. For example, the feeding turntable 1 is arranged on a vertical rotating shaft. The (intermittent) feeding turntable 1 is equipped with a first pre-winding station 14, a second pre-winding station 15 and a final winding station 16 along the rotation direction. During the intermittent rotation of the feeding turntable 1, the container to be processed (such as a cup body) can be moved to each station to stay and cooperate with the corresponding operation. The first pre-winding station 14 is equipped with a first pre-winding device 4, which includes a first pre-winding rotary mold 40. The first pre-winding rotary mold 40 is rotatable and can cooperate with the first pre-winding. The second pre-winding station 15 is equipped with a second pre-winding device 5, which includes a second pre-winding rotary mold 50. The second pre-winding rotary mold 50 is rotatable and can cooperate with the second pre-winding. The final winding station 16 is equipped with a final winding device 6, which includes a final winding fixing mold 60 and a heating component (such as an electric heating wire, electric heating rod, or electric heating coil). The heating component is connected to the final winding fixing mold 60 and heats the final winding fixing mold 60. The final winding fixing mold 60 does not rotate (is relatively fixed) and cooperates with the final winding.

[0025] During the production process, the feeding turntable 1 carries the container (i.e., the material, such as paper cups and bowls) to the first pre-winding station 14, where the first pre-winding device 4 performs the first pre-winding on the container opening; then the feeding turntable 1 rotates again to move the container with the first pre-winding completed to the second pre-winding station 15, where the second pre-winding device 5 performs the second pre-winding on the container opening; then the feeding turntable 1 rotates again to move the container with the second pre-winding completed to the final winding station 16, where the final winding device 6 performs the final winding on the container opening.

[0026] The container mouth preparation mechanism of the intelligent paper container forming machine is equipped with two rotary pre-winding stages (which will be further optimized later) and one fixed and heated final winding stage. In conjunction with the multiple winding of the container mouth (such as the mouth of a paper cup or bowl) at different workstations, the two pre-winding stages can complete the winding in stages step by step. The pre-winding effect of the paper in the rotary state is better. The fixed mold of the heated final winding stage can keep the edge of the mouth after the two pre-winding stages in a fixed state, ensuring that the winding is completed smoothly. It can be adapted to high-speed forming operation. Even when it stops at the corresponding workstation for a short time, it can work together to complete the winding smoothly. The winding effect is also relatively good (for example, the winding is fuller, the winding quality is relatively good, and the roll diameter and fit can meet the requirements well).

[0027] Based on the above embodiments, the following optimizations or further explanations can be made.

[0028] For example, receiving molds 2 (such as cup rings) are distributed along the circumference of the feeding turntable 1. The receiving molds 2 are evenly arranged on the feeding turntable 1 and are used to receive containers, that is, paper containers will be located on the receiving molds 2 of the feeding turntable 1. The receiving molds 2 on the feeding turntable 1 have rotating and stopping positions at each station so that the containers to be processed (such as cup bodies) can be moved to each station to stop and cooperate with the corresponding operations during the intermittent rotation of the feeding turntable 1.

[0029] The first pre-winding rotary mold 40 is configured to move forward and backward toward the container opening, the second pre-winding rotary mold 50 is configured to move forward and backward toward the container opening, and the final winding fixing mold 60 is configured to move forward and backward toward the container opening. The forward movement of the corresponding mold can bring it closer to the container opening to engage with the winding opening, and the backward movement can separate it and reset it to wait for the next winding opening, so that the feeding turntable 1 can carry the container to rotate and be transported.

[0030] For example, the receiving mold 2 on the feeding turntable 1 adopts a cup receiving ring, with the inlet and outlet of the cup receiving ring facing upwards. Usually, the cup receiving ring is vertically continuous. The receiving mold 2 on the feeding turntable 1 has corresponding rotation and stopping positions at each station. For example, the first pre-winding rotating mold 40, the second pre-winding rotating mold 50, and the final winding fixing mold 60 are respectively arranged on the upper side of the feeding turntable 1. The first pre-winding rotating mold 40, the second pre-winding rotating mold 50, and the final winding fixing mold 60 are respectively arranged to move forward and backward in the direction of the container opening. When they move downwards, they move forward to contact the container opening below to cooperate with the winding opening. When they rise, they move backward to reset.

[0031] Alternatively, the first pre-winding device 4, the second pre-winding device 5, and the final winding device 6 can be mounted on the winding tip lifting mounting plate 456. The winding tip lifting mounting plate 456 is positioned above the feeding turntable 1, and its structure is reasonable and facilitates the installation of each device. The winding tip lifting mounting plate 456 drives them to rise and fall in unison. The winding tip lifting mounting plate 456 can be driven by a vertical lifting shaft.

[0032] The first pre-winding device 4 further includes a first rotating shaft 41, and the first pre-winding rotating mold 40 is drivenly connected to the first rotating shaft 41 so that the first rotating shaft 41 drives the first pre-winding rotating mold 40 to rotate and cooperate with the first pre-winding. The second pre-winding device 5 further includes a second rotating shaft 52, and the second pre-winding rotating mold 50 is drivenly connected to the second rotating shaft 52 so that the second rotating shaft 52 drives the second pre-winding rotating mold 50 to rotate and cooperate with the second pre-winding.

[0033] Among them, the first pre-winding rotary mold 40 and the second pre-winding rotary mold 50 have relatively better pre-winding effect when they are rotating, and can rotate additionally during the pressure application process. The first pre-winding rotary mold 40 and the second pre-winding rotary mold 50 are set to the same speed. In addition to the same speed, the following optimization method can be adopted: the first pre-winding rotary mold 40 is set as a low-speed rotary mold, and the second pre-winding rotary mold 50 is set as a high-speed rotary mold. The rotation speed of the first pre-winding rotary mold 40 is less than the rotation speed of the second pre-winding rotary mold 50. That is, the rotation speed of the first pre-winding rotary mold 40 is less than the rotation speed of the second pre-winding rotary mold 50. The rotation speed can be adjusted and set according to factors such as paper material. In this process, the first pre-winding rotary mold 40 rotates at a relatively slow speed. This low speed allows it to effectively overcome the thin, straight, and sharp edges (even those with burrs or uneven cuts) at the top of the paper tube, thus smoothly curling the container opening (slightly deforming it). This facilitates the subsequent pre-winding by the second pre-winding rotary mold 50, avoiding defects such as twisting, poor curling, and cracking that can easily occur with direct one-step curling. After the first pre-winding by the first pre-winding rotary mold 40 completes the initial curling, the second pre-winding rotary mold 50 rotates rapidly (accelerating relative to the first pre-winding rotary mold 40). During the second pre-winding, it completes the subsequent curling based on the initial curling, smoothly completing the container opening's curling deformation. At this point, the paper container's opening is essentially curled. Afterwards, the final winding and fixing mold 60, in a heated state, will further refine the shape and maintain its shape, stabilizing the curling structure. Here, "rotational speed" refers to angular velocity.

[0034] For example, a large transmission wheel 42 is provided on the first rotating shaft 41, and a small transmission wheel 53 is provided on the second rotating shaft 52. The large transmission wheel 42 and the small transmission wheel 53 are connected to the pre-winding motor via a transmission belt. The pre-winding motor is also mounted on the winding end lifting mounting plate 456. The transmission is relatively stable and facilitates assembly and transmission connection. The vertical rotating shaft is connected to the servo motor, and the intermittent feeding turntable 1 is connected to the vertical rotating shaft. The servo motor drives the vertical rotating shaft to rotate intermittently, which in turn drives the feeding turntable 1 to rotate intermittently. This is relatively more intelligent. Even during the entire intermittent rotation process, while the time for one rotation remains constant, the dwell time can be extended (the rotation time compressed) as needed to allow each workstation more time to operate, resulting in better paper container forming. The specific time can be adjusted according to requirements, making it more intelligent.

[0035] The first pre-winding rotary mold 40, the second pre-winding rotary mold 50, and the final winding fixing mold 60 are each provided with corresponding matching rolling grooves. The shape of each matching groove can be set according to requirements (usually R-groove, half R-groove, etc.). The final winding device 6 can also be equipped with a buffer spring that cooperates with the final winding fixing mold 60 to provide a certain pressure holding time when the final winding fixing mold 60 contacts the pre-wound edge for final winding.

[0036] In addition, the feeding turntable 1 is also equipped with a post-rolling inspection station 17. This allows the paper container to be fed to the inspection station 17 for inspection after the roll-up process during the intermittent rotation cycle of the feeding turntable 1. The inspection station 17 is equipped with an inspection device, including a cup rim inspection camera assembly 71. The cup rim inspection camera assembly 71 is positioned above the feeding turntable 1 at the inspection station 17. It takes pictures of the cup rim (i.e., the opening) of the paper container from above for inspection, and can even record the quality of the rolled rim. Furthermore, the inspection device may also include a cup bottom inspection camera assembly 72, positioned below the feeding turntable 1 at the inspection station 17. The cup bottom inspection camera assembly 72 takes pictures of the paper container from below for inspection, and can detect the cup bottom area and / or the lower edge area of ​​the cup rim.

[0037] Furthermore, in the container mouth preparation mechanism of the intelligent paper container forming machine of this embodiment, a preferred nine-station structure is arranged. Along the rotation direction of the feeding turntable 1, there are a feeding station 11, an idle avoidance station 12, a container mouth oiling station 13, a first pre-winding station 14, a second pre-winding station 15, a final winding station 16, an inspection station 17, a waste discharge station 18, and a discharge station 19, i.e., a nine-station layout. Nine receiving molds 2 are evenly arranged along the circumference of the feeding turntable 1. The receiving molds 2 are cup-receiving rings, and the receiving molds 2 on the feeding turntable 1 have rotating and stopping positions at each station. During the intermittent rotation of the feeding turntable 1, the receiving molds 2 stop sequentially at each of the nine stations after one revolution. The feeding station 11 facilitates the input of paper containers (such as paper cups and bowls) into the receiving molds 2 (such as cup-receiving rings) on the feeding turntable 1. The idle avoidance station 12 provides space for the common mold. Turntables (such as those used to make the bottom of paper container cups, which have vertical cup molds 100) can be staggered and overlapped above the feeding turntable 1, allowing the two turntables to be closer together, connecting more smoothly, with a relatively compact structure and a relatively narrower overall width. The oiling station 13 at the container mouth helps with the seam rolling, the first pre-winding station 14 assists in the first pre-winding of the container mouth, the second pre-winding station 15 assists in the second pre-winding of the container mouth, the final winding station 16 assists in the final winding of the container mouth, the inspection station 17 assists in inspecting the paper containers, the waste discharge station 18 assists in removing paper containers that have failed inspection, and the discharge station 19 assists in the normal output of good paper containers. The nine-station layout results in relatively good container mouth preparation quality (such as seam rolling), and the efficiency of direct online waste removal is relatively high, eliminating the need for additional subsequent waste removal. The three seam rolling processes improve seam rolling quality and ensure seam rolling effect.

Claims

1. A container opening preparation mechanism for a paper container intelligent forming machine, comprising an intermittent feeding turntable (1), the feeding turntable (1) being rotatably arranged around a vertical axis, characterized in that: The feeding turntable (1) is equipped with a first pre-winding station (14), a second pre-winding station (15), and a final winding station (16) along the rotation direction. The first pre-winding station (14) is equipped with a first pre-winding device (4), which includes a first pre-winding rotary mold (40). The second pre-winding station (15) is equipped with a second pre-winding device (5), which includes a second pre-winding rotary mold (50). The final winding station (16) is equipped with a final winding device (6), which includes a final winding fixing mold (60) and a heating component connected to the final winding fixing mold (60).

2. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: The feeding turntable (1) is provided with receiving molds (2) for receiving containers distributed along the circumference. The receiving molds (2) are evenly arranged on the feeding turntable (1). The receiving mold (2) on the feeding turntable (1) has a rotating and stopping position at each station. The first pre-wound rotary mold (40) is set to move forward and backward toward the container opening. The second pre-wound rotary mold (50) is set to move forward and backward toward the container opening. The final roll fixing mold (60) is set to move forward and backward toward the container opening.

3. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: The receiving mold (2) on the feeding turntable (1) adopts a cup receiving ring, with the inlet and outlet of the cup receiving ring facing upwards. The receiving mold (2) on the feeding turntable (1) has a corresponding rotation and stopping position at each station. The first pre-winding rotary mold (40), the second pre-winding rotary mold (50), and the final winding fixing mold (60) are respectively arranged on the upper side of the feeding turntable (1). The first pre-winding rotary mold (40), the second pre-winding rotary mold (50), and the final winding fixed mold (60) are respectively set to move forward and backward in the direction of the container opening in a lifting manner.

4. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1 or 3, characterized in that: The first pre-winding device (4), the second pre-winding device (5), and the final winding device (6) are mounted on the winding opening lifting mounting plate (456). The roll-up lifting mounting plate (456) is positioned above the feeding turntable (1).

5. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: The first pre-winding device (4) also includes a first rotating shaft (41), and the first pre-winding rotating mold (40) is connected to the first rotating shaft (41) in a transmission manner. The second pre-winding device (5) also includes a second rotating shaft (52), and the second pre-winding rotating mold (50) is connected to the second rotating shaft (52). The first pre-winding rotating mold (40) and the second pre-winding rotating mold (50) are set to the same rotation speed; or, the first pre-winding rotating mold (40) is a low-speed rotating mold and the second pre-winding rotating mold (50) is a high-speed rotating mold, and the rotation speed of the first pre-winding rotating mold (40) is less than the rotation speed of the second pre-winding rotating mold (50).

6. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 5, characterized in that: A large transmission wheel (42) is provided on the first rotating shaft (41). A small transmission wheel (53) is provided on the second rotating shaft (52). The large drive wheel (42) and the small drive wheel (53) are connected to the pre-winding motor via a drive belt; The feeding turntable (1) is set on the vertical rotating shaft, which is connected to the servo motor drive. The intermittent feeding turntable (1) is connected to the vertical rotating shaft drive.

7. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: The first pre-winding rotary mold (40), the second pre-winding rotary mold (50), and the final winding fixing mold (60) are respectively provided with corresponding matching roll opening grooves.

8. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: The feeding turntable (1) is also equipped with an inspection station (17) after the seam is rolled. The inspection station (17) is equipped with an inspection device, which includes a cup mouth inspection camera assembly (71) and is positioned above the feeding turntable (1) at the inspection station (17).

9. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 8, characterized in that: The detection device also includes a cup bottom detection camera assembly (72), which is located below the feeding turntable (1) at the detection station (17).

10. The container opening preparation mechanism of the intelligent paper container forming machine as described in claim 1, characterized in that: Along the rotation direction of the feeding turntable (1), there are feeding station (11), idle avoidance station (12), container mouth oil dipping station (13), first pre-winding station (14), second pre-winding station (15), final winding station (16), inspection station (17), waste discharge station (18) and discharge station (19). Nine receiving molds (2) are evenly arranged along the circumference of the feeding turntable (1). The receiving molds (2) adopt cup rings. The receiving molds (2) on the feeding turntable (1) have rotating and stopping positions at each station.

Images