Synchronous cup ejection mechanism of preformed plastic cup filling and sealing machine

Abstract

A kind of synchronous cup ejecting mechanism of prefabricated plastic cup filling and sealing machine, it is characterized by including frame and the drive mechanism, annular mould conveying mechanism, follow-up lifting mechanism being installed on frame, annular mould conveying mechanism has at least one mould, drive mechanism respectively drives annular mould conveying mechanism, follow-up lifting mechanism work, annular mould conveying mechanism transports the mould in which plastic cup package is stored towards outlet, follow-up lifting mechanism follows the mould movement and gradually lifts the plastic cup package in mould below annular mould conveying mechanism;Follow-up lifting mechanism includes passive shaft, main drive shaft, power shaft, first transmission mechanism, second transmission mechanism and multiple chain lifting units.The beneficial effects of the present application compared with prior art are that, since being provided with chain lifting unit, plastic cup package can be well automatically separated from mould and effectively reduce the probability of accidental occurrence in the process of cup separation, and the structure is reasonable.

Description

Technical Field

[0001] This utility model relates to a synchronous ejection cup mechanism for a prefabricated plastic cup filling and sealing machine. Background Technology

[0002] Precast plastic cup filling and sealing machines use plastic cups to fill and seal materials to create precast plastic cup packages. After this process, the plastic cup packages need to be removed from the mold for collection. Traditional automatic cup removal methods typically include free-fall cup removal and cylinder-assisted cup ejection. However, free-fall cup removal is prone to deformation and damage due to the significant impact of the falling plastic cup package, causing production losses and disruptions. Cylinder-assisted cup ejection, on the other hand, involves multiple cylinder movements, is affected by air pressure, and suffers from insufficient stability, easily leading to cup jamming. Furthermore, it involves numerous steps, is slow, and has limited efficiency. Therefore, improvements have been made to these traditional technologies.

[0003] As disclosed in Chinese patent document CN212891334U, a "cam and chain-linked cup-dispensing device" includes a power mechanism, a cam mechanism, a lifting assembly, and a cup-dispensing mechanism. The power mechanism includes a motor and a reducer, with the motor's output connected to the reducer. The cam mechanism includes a camshaft, a spiral bevel gear, and transmission cams. The spiral bevel gear is fixedly sleeved on the camshaft, and the transmission cams are symmetrically mounted at both ends of the camshaft. One output shaft of the reducer is connected to the spiral bevel gear to drive the camshaft to rotate. There are two sets of lifting assemblies, each located above the transmission cams on either side. This technology achieves a linkage effect through the coordinated action of each mechanism. The use of spiral bevel gear transmission results in a compact structure, high transmission torque, fast and stable operation, and eliminates the loud noise associated with pneumatic components. This significantly increases the overall operating speed of the device and greatly improves production efficiency.

[0004] However, the applicant discovered that the aforementioned technology has a complex structure and requires precise coordination among multiple mechanisms; otherwise, unexpected situations such as jamming or leakage may easily occur. Utility Model Content

[0005] The purpose of this invention is to provide a synchronous ejection mechanism for a prefabricated plastic cup filling and sealing machine. This synchronous ejection mechanism can effectively complete the automatic ejection of the plastic cup from the mold and significantly reduce the probability of accidents during the ejection process. The technical solution adopted is as follows: A synchronous ejection mechanism for a prefabricated plastic cup filling and sealing machine is characterized by: a frame and a drive mechanism, an annular mold conveying mechanism, and a following lifting mechanism mounted on the frame. The annular mold conveying mechanism has at least one mold. The drive mechanism drives the annular mold conveying mechanism and the following lifting mechanism to work respectively. The annular mold conveying mechanism conveys the mold containing the plastic cup packaging to the outlet. The following lifting mechanism moves below the annular mold conveying mechanism, following the mold and gradually lifting the plastic cup packaging inside the mold. The following lifting mechanism includes a passive shaft, a main drive shaft, a power shaft, a first transmission mechanism, a second transmission mechanism, and multiple chain lifting units. The passive shaft, main drive shaft, and power shaft are respectively mounted on the frame and distributed sequentially along the direction of conveying the plastic cup packaging. The drive mechanism is connected to the main drive shaft and drives the main drive shaft to rotate. The main drive shaft is connected to the passive shaft through the first transmission mechanism. The passive shaft is connected to the power shaft through the second transmission mechanism. The power shaft drives all the chain lifting units to move.

[0006] In a preferred embodiment, the first transmission mechanism includes a first transmission chain and two first sprockets, with the two first sprockets respectively mounted on the main drive shaft and the driven shaft, and the first transmission chain sleeved on the two first sprockets.

[0007] In a preferred embodiment, the second transmission mechanism includes a second transmission chain and two second sprockets, with the two second sprockets respectively mounted on the driven shaft and the power shaft, and the second transmission chain sleeved on the two second sprockets.

[0008] In a preferred embodiment, the chain lifting unit includes a lifting chain, a lifting drive wheel, and a lifting driven wheel. The lifting drive wheel is mounted on a power shaft, the lifting driven wheel is rotatably sleeved on the driven shaft, and the lifting chain is sleeved on the lifting drive wheel and the lifting driven wheel.

[0009] In a preferred embodiment, the drive mechanism includes a servo motor and multiple transmission units. The servo motor and all transmission units are respectively mounted on the frame. The servo motor drives the annular mold conveying mechanism to move and drives the main drive shaft to rotate through the multiple transmission units.

[0010] The advantages of this utility model compared to the prior art are that, due to the presence of a chain lifting unit, it can effectively complete the automatic release of the plastic cup packaging from the mold and effectively reduce the probability of accidents during the cup release process, and its structure is reasonable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of the annular mold conveying mechanism and the following lifting mechanism in the illustrated embodiment; Figure 3 yes Figure 2 Top view. Detailed Implementation

[0012] like Figure 1-3 As shown, in one embodiment of this application, the synchronous ejection mechanism of a prefabricated plastic cup filling and sealing machine includes a frame 1 and a drive mechanism 2, an annular mold conveying mechanism 3, and a following lifting mechanism 4 mounted on the frame 1. The annular mold conveying mechanism 3 has at least one mold 301. The drive mechanism 2 drives the annular mold conveying mechanism 3 and the following lifting mechanism 4 to work respectively. The annular mold conveying mechanism 3 conveys the mold 301 containing the plastic cup package to the outlet. The following lifting mechanism 4 moves below the annular mold conveying mechanism 3, following the mold 301 and gradually lifting the plastic cup package 5 located inside the mold 301. 4 includes a passive shaft 402, a main drive shaft 403, a power shaft 404, a first transmission mechanism 405, a second transmission mechanism 406, and multiple chain lifting units 401. The passive shaft 402, the main drive shaft 403, and the power shaft 404 are respectively mounted on the frame 1 and distributed sequentially along the conveying direction of the plastic cup packaging 5. The drive mechanism 2 is connected to the main drive shaft 403 and drives the main drive shaft 403 to rotate. The main drive shaft 403 is connected to the passive shaft 402 through the first transmission mechanism 405. The passive shaft 402 is connected to the power shaft 404 through the second transmission mechanism 406. The power shaft 404 drives all chain lifting units 401 to move.

[0013] In one alternative embodiment of this application, the mold 301 has a plurality of mold holes (the mold 301 extends laterally, therefore...). Figure 1-3 (It is not apparent from the image that multiple mold holes are present). The chain lifting unit 401 and the mold holes of the individual mold 301 are the same in number and correspond one-to-one. Each chain lifting unit 401 lifts the plastic cup package 5 located in the corresponding mold hole. Figure 3 It can be seen that there are multiple chain lifting units 401.

[0014] like Figure 1-3 As shown, in one alternative embodiment of this application, the first transmission mechanism 405 includes a first transmission chain 4051 and two first sprockets 4052. The two first sprockets 4052 are respectively mounted on the main drive shaft 403 and the driven shaft 402, and the first transmission chain 4051 is sleeved on the two first sprockets 4052.

[0015] like Figure 1-3 As shown, in one alternative embodiment of this application, the second transmission mechanism 406 includes a second transmission chain 4061 and two second sprockets 4062. The two second sprockets 4062 are respectively mounted on the passive shaft 402 and the power shaft 404, and the second transmission chain 4061 is sleeved on the two second sprockets 4062.

[0016] like Figure 1-3 As shown, in one alternative embodiment of this application, the chain lifting unit 401 includes a lifting chain 4011, a lifting drive wheel 4012, and a lifting driven wheel 4013. The lifting drive wheel 4012 is mounted on the drive shaft 404, and the lifting driven wheel 4013 is rotatably sleeved on the driven shaft 402 (that is, the lifting driven wheel 4013 can rotate freely relative to the driven shaft 402). The lifting chain 4011 is sleeved on the lifting drive wheel 4012 and the lifting driven wheel 4013. This structural design allows the lifting drive wheel 4012, located on the right side (i.e., the direction of movement of the lifting chain 4011), to pull the lifting chain 4011 to the right. The lifting chain 4011 then drives the lifting passive wheel 4013 to rotate. Since the lifting passive wheel 4013 can rotate freely relative to the passive shaft 402, the top area of ​​the lifting chain 4011 is in a taut, stretched state, ensuring that the corresponding plastic cup packaging 5 is lifted upward by the lifting chain 4011.

[0017] like Figure 1-3 As shown, in an alternative embodiment of this application, the chain lifting unit 401 further includes a guide rod 4014, which is mounted on the frame 1 and located above the main drive shaft 403, with the lifting chain 4011 passing over the guide rod 4014.

[0018] like Figure 1-3 As shown, in one optional embodiment of this application, the distance between the lifting chain 4011 of the chain lifting unit 401 at the outlet of the annular mold conveying mechanism 3 and the corresponding mold 301 of the annular mold conveying mechanism 3 gradually decreases along the direction of movement of the mold 301. In this embodiment, from Figure 1 , 2 As can be seen, the lifting chain 4011 of the chain lifting unit 401 is located at the outlet of the ring mold conveying mechanism 3. The distance between the chain lifting chain 4011 and the corresponding mold 301 of the ring mold conveying mechanism 3 gradually decreases along the direction of movement of the mold 301 until the line connecting the two is horizontal. The plastic cup package 5 located inside the mold then begins to detach from the mold 301.

[0019] like Figure 1-3 As shown, in one optional embodiment of this application, the drive mechanism 2 includes a servo motor 201 and multiple transmission units 202. The servo motor 201 and all transmission units 202 are respectively mounted on the frame 1. The servo motor 201 drives the annular mold conveying mechanism 3 to move and drives the main drive shaft 403 to rotate through the multiple transmission units 202.

[0020] like Figure 1-3 As shown, in one alternative embodiment of this application, a plastic cup packaging delivery chute 6 is installed on the frame 1 located below the outlet of the annular mold conveying mechanism 3.

[0021] The following is combined Figure 1-3 The working process of this embodiment is described below: 1. The drive mechanism 2 drives the annular mold conveying mechanism 3 to move and drives the main drive shaft 403 to rotate; 2. The annular mold conveying mechanism 3 continuously faces the outlet (i.e., Figure 1 (In the middle, on the right side of the rack) conveys 5 plastic cup packages; 3. The main drive shaft 403 of the following lifting mechanism 4 drives the passive shaft 402 to rotate through the first transmission mechanism 405. The passive shaft 402 drives the power shaft 404 to rotate through the second transmission mechanism 406. The power shaft 404 drives all chain lifting units 401 to move. The lifting chains 4011 of all chain lifting units 401 drive the plastic cup package 5 in the upper mold 301 to move towards the outside of the annular mold conveying mechanism 3. When the mold 301 of the annular mold conveying mechanism 3 flips at the exit, the plastic cup package 5 can quickly get off the mold 301 and fall into the plastic cup package delivery chute 6 and slide out.

[0022] The chain lifting unit 401 of this application can effectively complete the cup removal work of all plastic cup packages 5 in each mold 301. Moreover, its structure is reasonable and can effectively keep the top area of ​​all lifting chains 4011 in a stretched state, avoiding the top area of ​​the lifting chains 4011 from sinking downward and causing the plastic cup packages 5 to fail to be lifted into place.

[0023] 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 utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may 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 utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.

Claims

1. A synchronous ejection cup mechanism for a prefabricated plastic cup filling and sealing machine, characterized in that: The system includes a frame and a drive mechanism, a ring mold conveying mechanism, and a following lifting mechanism mounted on the frame. The ring mold conveying mechanism has at least one mold. The drive mechanism drives the ring mold conveying mechanism and the following lifting mechanism to work. The ring mold conveying mechanism conveys the mold containing plastic cup packaging to the outlet. The following lifting mechanism moves below the ring mold conveying mechanism, following the mold and gradually lifting the plastic cup packaging inside the mold. The following lifting mechanism includes a passive shaft, a main drive shaft, a power shaft, a first transmission mechanism, a second transmission mechanism, and multiple chain lifting units. The passive shaft, main drive shaft, and power shaft are mounted on the frame and distributed sequentially along the direction of plastic cup packaging conveying. The drive mechanism is connected to the main drive shaft and drives the main drive shaft to rotate. The main drive shaft is connected to the passive shaft through the first transmission mechanism. The passive shaft is connected to the power shaft through the second transmission mechanism. The power shaft drives all chain lifting units to move.

2. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 1, characterized in that: The first transmission mechanism includes a first transmission chain and two first sprockets. The two first sprockets are respectively mounted on the main drive shaft and the driven shaft, and the first transmission chain is sleeved on the two first sprockets.

3. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 1, characterized in that: The second transmission mechanism includes a second transmission chain and two second sprockets. The two second sprockets are respectively mounted on the driven shaft and the power shaft, and the second transmission chain is sleeved on the two second sprockets.

4. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 1, characterized in that: The chain lifting unit includes a lifting chain, a lifting drive wheel, and a lifting driven wheel. The lifting drive wheel is mounted on a power shaft, and the lifting driven wheel is rotatably sleeved on the driven shaft. The lifting chain is sleeved on the lifting drive wheel and the lifting driven wheel.

5. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 4, characterized in that: The chain lifting unit also includes a guide rod, which is mounted on the frame and located above the main drive shaft, with the lifting chain passing over the guide rod.

6. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 5, characterized in that: The lifting chain of the chain lifting unit is located at the outlet of the annular mold conveying mechanism. The distance between the chain and the corresponding mold of the annular mold conveying mechanism gradually decreases along the direction of mold movement.

7. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 1, characterized in that: A plastic cup packaging delivery chute is installed on the frame located below the outlet of the annular mold conveying mechanism.

8. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in claim 1, characterized in that: The mold has multiple mold holes, and the number of chain lifting units is the same as the number of mold holes in a single mold and they correspond one-to-one. Each chain lifting unit lifts the plastic cup package located in the corresponding mold hole.

9. The synchronous ejection cup mechanism of the prefabricated plastic cup filling and sealing machine as described in any one of claims 1-8, characterized in that: The drive mechanism includes a servo motor and multiple transmission units. The servo motor and all transmission units are respectively mounted on the frame. The servo motor drives the annular mold conveying mechanism to move and drives the main drive shaft to rotate through the multiple transmission units.

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