Cup jacking structure of cup making machine

Abstract

The utility model discloses a cup jacking structure of a cup making machine, which comprises a lower die holder, a driving mechanism and a jacking mechanism, the lower die holder is used for installing a lower die and a cup jacking plate, the driving mechanism controls the jacking mechanism to move up and down in the lower die holder, an output shaft of a driving motor is connected with an input end of a speed reducer, and uniform jacking force is provided during cup jacking. A mold can be protected, the yield of production is improved, and a driving gear is arranged on an output shaft of the speed reducer; the jacking mechanism comprises a cup jacking shaft and a cup jacking block, the cup jacking block is arranged at the top of the cup jacking shaft, the cup jacking block is used for being connected with a cup jacking plate, the cup jacking plate is driven by the cup jacking block to move up and down, noise generated during cup jacking can be reduced, meshing teeth are vertically arranged on one side of the cup jacking shaft, and the driving gear is meshed with the meshing teeth; the two bearing seats are installed at the bottom of the lower die base, the output shaft of the speed reducer is supported through the bearing seats, and the stability of the driving gear during rotation can be improved.

Description

Technical Field

[0001] This invention relates to the field of cup-making machines, and more particularly to a top cup structure for a cup-making machine. Background Technology

[0002] The cup-making machine uses thermoforming molds to produce plastic cups. After the cups are formed, they need to be ejected for easy removal. The thermoforming mold includes an upper mold and a lower mold. Typically, a top plate and a fixed base rod are located below the lower mold. The top plate can move up and down relative to the lower mold. A top rod is mounted on the top plate and inserted into the lower mold. After the plastic cup is formed, the lower mold moves downwards and separates from the upper mold. The fixed base rod is located on the frame below the top plate. The lower mold causes the top plate to impact the base rod, preventing the top plate from moving further downwards. As the lower mold continues to move downwards, the top rod above the stationary top plate lifts the formed plastic cup from the lower mold's forming cavity, causing the cup to detach from the mold. Currently, during the ejection process, the top plate impacts the fixed base rod, which not only generates significant noise but also results in uneven ejection force, potentially affecting the product yield and mold lifespan. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems of excessive noise and reduced mold life of existing cup-making machine top cup structures, and to provide a cup-making machine top cup structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a cup-making machine's top cup structure, comprising a lower mold base, a drive mechanism, and a lifting mechanism. The lower mold base is used to mount a lower mold and a top cup plate. The drive mechanism and the lifting mechanism are mounted on the lower mold base, and the drive mechanism controls the lifting mechanism to move up and down within the lower mold base. The drive mechanism includes a drive motor and a reducer, the output shaft of the drive motor being connected to the input end of the reducer, and a drive gear being provided on the output shaft of the reducer. The lifting mechanism includes a top cup shaft and a top cup block, the top cup block being disposed at the top of the top cup shaft, and the top cup block being used to engage with the top cup plate. The connection drives the top cup plate and the top cup rod on the top cup plate to move up and down relative to the lower mold. The lower mold base is provided with a top cup shaft mounting sleeve. The top cup shaft passes through the top cup shaft mounting sleeve. A meshing tooth is vertically provided on one side of the top cup shaft. The drive gear meshes with the meshing tooth. When the mold opens, the drive gear of the drive mechanism rotates to control the top cup shaft of the lifting mechanism to move upward, thereby causing the top cup plate to move upward relative to the lower mold. The top cup is lifted by the top cup rod on the top cup plate. Two bearing seats are installed at the bottom of the lower mold base. The two bearing seats are located on both sides of the drive gear. The output shaft of the reducer is installed on the two bearing seats.

[0005] Furthermore, the bottom plate of the lower mold base is provided with a top cup shaft mounting groove, the top cup shaft mounting sleeve is installed on the top cup shaft mounting groove, the side of the top cup shaft mounting sleeve is provided with a meshing opening, the top of the top cup shaft mounting sleeve is installed with an upper copper sleeve, the bottom of the top cup shaft mounting sleeve is installed with a lower copper sleeve, the top cup shaft passes through the upper copper sleeve and the lower copper sleeve, the side of the top cup shaft provided with a meshing tooth faces the meshing opening, the meshing opening is located between the upper copper sleeve and the lower copper sleeve, and the drive gear passes through the meshing opening and meshes with the meshing tooth.

[0006] Furthermore, the top cup shaft mounting groove includes an upper groove seat and a lower groove opening. The diameter of the upper groove seat is larger than the diameter of the lower groove opening. The upper part of the top cup shaft mounting sleeve extends outward to form a retaining seat integral with the top cup shaft mounting sleeve. The retaining seat is inserted into the upper groove seat, and the retaining seat is provided with mounting screw holes.

[0007] Furthermore, the upper and lower copper sleeves are matched with the top cup shaft. The top cup shaft moves axially within the upper and lower copper sleeves under the drive of the drive mechanism. The upper and lower copper sleeves are inserted into the top cup shaft mounting sleeve. The lower part of the lower copper sleeve extends outward to form a lower limiting ring integrated with the lower copper sleeve. The lower limiting ring is installed at the bottom of the top cup shaft mounting sleeve. A copper sleeve groove is provided on the upper part of the top cup shaft mounting sleeve. The top of the upper copper sleeve extends outward to form an upper limiting ring that is inserted into the copper sleeve groove.

[0008] Furthermore, the top of the bearing housing fits into the lower mold base, and the bearing housing is installed at the bottom of the lower mold base through mounting screws on both sides. A rolling bearing is provided in the middle of the bearing housing, and the output shaft of the reducer is rotatably mounted on the rolling bearing.

[0009] Furthermore, the top cup block is provided with a top cup screw for threaded connection with the top cup plate.

[0010] Furthermore, the lower mold base is provided with a drive mechanism mounting bracket on its side. The drive mechanism mounting bracket includes a horizontal mounting surface and a vertical mounting surface. The horizontal mounting surface is perpendicular to the vertical mounting surface. The horizontal mounting surface is attached to the bottom of the lower mold base and is fixedly connected to the lower mold base. The drive mechanism is mounted on the side of the vertical mounting surface away from the horizontal mounting surface.

[0011] Furthermore, the portion of the vertical mounting surface that is higher than the horizontal mounting surface forms a mounting angle with the horizontal mounting surface, and a support plate is provided between the bottom of the horizontal mounting surface and the vertical mounting surface.

[0012] Furthermore, the drive motor is a servo motor.

[0013] The advantages of this invention compared to existing technologies are as follows: 1. During the ejection process, the ejector plate connected to the ejector mechanism is moved upward by the drive mechanism to achieve ejection. Compared with the traditional method of ejecting the ejector by impacting the fixed bottom rod, this effectively reduces the noise generated during ejection. Furthermore, the drive mechanism can easily adjust the position of the ejector rod, improving mold adjustment efficiency. 2. Using a reducer and servo motor to drive the ejector mechanism ensures a more uniform ejection force of the ejector rod during ejection. The cooperation between the upper and lower copper sleeves ensures the vertical movement of the ejector shaft, making the ejection process smoother. This helps protect the mold, extend its lifespan, and improve product yield. 3. The drive mechanism can control the ejector mechanism to eject the ejector when the upper and lower molds are separated, eliminating the need to wait for the lower mold base to move down a certain distance to impact the fixed bottom rod before ejecting the ejector, thus improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the drive mechanism and the lifting mechanism.

[0015] Figure 2 This is an exploded diagram of the lifting mechanism.

[0016] Figure 3 This is a schematic diagram of an embodiment.

[0017] Figure 4 for Figure 3 A schematic diagram of part A in the diagram.

[0018] Figure 5 This is a schematic diagram of the lower mold base.

[0019] Figure 6 This is a schematic diagram of the top cup plate and mold.

[0020] In the diagram: 1. Drive mechanism; 11. Drive motor; 12. Reducer; 121. Drive gear; 2. Lifting mechanism; 21. Ejector cup shaft; 211. Engaging teeth; 22. Ejector cup block; 3. Lower mold base; 31. Ejector cup shaft mounting groove; 311. Upper groove seat; 312. Lower groove opening; 32. Drive mechanism mounting bracket; 321. Horizontal mounting surface; 322. Vertical mounting surface; 323. Support plate; 324. Mounting clip angle; 41. Ejector cup shaft mounting sleeve; 411. Engaging opening; 412. Clip seat; 413. Copper sleeve groove seat; 42. Upper copper sleeve; 421. Upper limit ring; 43. Lower copper sleeve; 431. Lower limit ring; 5. Bearing seat; 51. Rolling bearing; 6. Lower mold; 7. Five-point drive structure; 8. Ejector cup plate; 81. Ejector cup rod. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: A cup-making machine's top cup structure includes a lower mold base 3, a drive mechanism 1, and a lifting mechanism 2. The lower mold base 3 drives the lower mold 6, the top cup plate 8, the drive mechanism 1, and the lifting mechanism 2 to move up and down simultaneously. The lower mold base 3 is controlled to move up and down within the cup-making machine by a lower mold base drive structure 7 on the cup-making machine. The drive mechanism 1 and the lifting mechanism 2 are mounted on the lower mold base 3, and the drive mechanism 1 controls the lifting mechanism 2 to move up and down within the lower mold base 3. The drive mechanism 1 includes a drive motor 11 and a reducer 12, which can... The ejector provides a stable and uniform ejection force to protect the mold and improve the yield rate. The output shaft of the drive motor 11 is connected to the input end of the reducer 12, and a drive gear 121 is provided on the output shaft of the reducer 12. The ejector mechanism 2 includes an ejector shaft 21 and an ejector block 22. The ejector block 22 is located on the top of the ejector shaft 21. The ejector block is threadedly connected to the ejector plate by an ejector screw, which drives the ejector plate 8 and the ejector rod 81 on the ejector plate 8 to move up and down relative to the lower mold 6. The ejector block 22 drives the ejector plate 8 to move up and down. The lower mold base 3 is equipped with a top cup shaft mounting sleeve 41, through which the top cup shaft 21 passes. A vertically arranged meshing tooth 211 is provided on one side of the top cup shaft 21. The drive gear 121 meshes with the meshing tooth 211, and the drive motor 11 drives the drive gear 121 to rotate. The drive gear 121, through the meshing tooth 211, drives the top cup shaft 21 to move upward or downward. During mold opening, the lower mold base drive structure 7 controls the lower mold base to move downward within the cup-making machine. At this time, the drive mechanism 1 controls... The rotation of the drive gear 121 causes the lifting mechanism 2 to move upward, which in turn causes the top cup plate 8 to move upward relative to the lower mold 6. At this time, the top cup rod 81 on the top cup plate 8 moves upward to lift the molded plastic cup in the molding cavity of the lower mold 6 to achieve the top cup. Two bearing seats 5 are installed at the bottom of the lower mold base 3. The two bearing seats 5 are located on both sides of the drive gear 121. The output shaft of the reducer 12 is installed on the two bearing seats 5. By supporting the output shaft of the reducer 12 through the bearing seats 5, the stability of the drive gear 121 when rotating can be improved.

[0023] Furthermore, the bottom plate of the lower mold base 3 is provided with a top cup shaft mounting groove 31, and the top cup shaft mounting sleeve 41 is installed on the top cup shaft mounting groove 31. The side of the top cup shaft mounting sleeve 41 is provided with a meshing opening 411. The top of the top cup shaft mounting sleeve 41 is provided with an upper copper sleeve 42, and the bottom of the top cup shaft mounting sleeve 41 is provided with a lower copper sleeve 43. The top cup shaft 21 passes through the upper copper sleeve 42 and the lower copper sleeve 43. The cooperation of the upper copper sleeve 42 and the lower copper sleeve 43 can ensure the vertical movement of the top cup shaft 21, making the cup lifting process smoother. The side of the top cup shaft 21 with a meshing tooth 211 faces the meshing opening 411. The meshing opening 411 is located between the upper copper sleeve 42 and the lower copper sleeve 43. The drive gear 121 passes through the meshing opening 411 and meshes with the meshing tooth 211.

[0024] Furthermore, the top cup shaft mounting groove 31 includes an upper groove seat 311 and a lower groove opening 312. The diameter of the upper groove seat 311 is larger than the diameter of the lower groove opening 312. The upper part of the top cup shaft mounting sleeve 41 extends outward to form a retainer 412 integral with the top cup shaft mounting sleeve 41. The retainer 412 is inserted into the upper groove seat 311. The retainer 412 is provided with a mounting screw. The top cup shaft mounting sleeve 41 and the mounting groove are connected and fixed by screws.

[0025] Furthermore, the upper copper sleeve 42 and lower copper sleeve 43 are matched with the top cup shaft. The top cup shaft 21 moves axially within the upper copper sleeve 42 and lower copper sleeve 43 under the drive of the drive mechanism 1. The cooperation of the upper copper sleeve 42 and lower copper sleeve 43 can ensure the vertical movement of the top cup shaft 21, making the cup lifting process smoother. The upper copper sleeve 42 and lower copper sleeve 43 are inserted into the top cup shaft mounting sleeve 41. The lower part of the lower copper sleeve 43 extends outward to form a lower limit ring 431 integrated with the lower copper sleeve 43. The lower limit ring 431 is installed at the bottom of the top cup shaft mounting sleeve 41 by screws. The upper part of the top cup shaft mounting sleeve 41 is provided with a copper sleeve groove seat 413. The top of the upper copper sleeve 42 extends outward to form an upper limit ring 421, which is inserted into the copper sleeve groove seat 413 and fixed by screws.

[0026] Furthermore, the top of the bearing seat 5 is fitted with the lower mold seat 3, and the bearing seat 5 is installed at the bottom of the lower mold seat 3 through the mounting screw holes on both sides. A rolling bearing 51 is provided in the middle of the bearing seat 5, and the output shaft of the reducer 12 is rotatably mounted on the rolling bearing 51.

[0027] Furthermore, a drive mechanism mounting bracket 32 ​​is provided on the side of the lower mold base. The drive mechanism mounting bracket 32 ​​includes a horizontal mounting surface 321 and a vertical mounting surface 322. The horizontal mounting surface 321 is perpendicular to the vertical mounting surface 322. The horizontal mounting surface 321 is attached to the bottom of the lower mold base 3 and is fixedly connected to the lower mold base 3 by screws. The drive mechanism 1 is installed on the side of the vertical mounting surface 322 away from the horizontal mounting surface. The drive mechanism 1 can be driven by the lower mold base 3 to move up and down synchronously with the top cup plate 8 and the lower mold 6.

[0028] Furthermore, the portion of the vertical mounting surface 321 that is higher than the horizontal mounting surface 321 forms a mounting angle 324 with the horizontal mounting surface 321, which is used to lock onto the edge of the lower mold base 3 for easy installation. A support plate 323 is provided between the bottom of the horizontal mounting surface 321 and the vertical mounting surface 322 to improve the strength of the drive mechanism mounting frame 32.

[0029] Furthermore, the drive motor 11 is a servo motor, which provides power input to the reducer 12. The output shaft of the reducer 12 rotates, thereby driving the lifting structure 2 to move up and down.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cup-making machine's top cup structure, comprising a lower mold base, a drive mechanism, and a lifting mechanism, wherein the lower mold base is used to mount the lower mold and the top cup plate, characterized in that... The driving mechanism and the lifting mechanism are mounted on the lower mold base. The driving mechanism controls the lifting mechanism to move up and down within the lower mold base. The driving mechanism includes a drive motor and a reducer. The output shaft of the drive motor is connected to the input end of the reducer, and a drive gear is provided on the output shaft of the reducer. The lifting mechanism includes a top cup shaft and a top cup block. The top cup block is located at the top of the top cup shaft and is used to connect with the top cup plate, driving the top cup plate and the top cup rod on the top cup plate to move up and down relative to the lower mold. A top cup shaft mounting sleeve is provided on the lower mold base. The top cup shaft passes through the top cup shaft mounting sleeve. A meshing tooth is vertically provided on one side of the top cup shaft. The drive gear meshes with the meshing tooth. When the mold is opened, the drive gear of the driving mechanism rotates to control the top cup shaft on the lifting mechanism to move upward. Two bearing seats are installed at the bottom of the lower mold base. The two bearing seats are located on both sides of the drive gear, and the output shaft of the reducer is mounted on the two bearing seats.

2. The top cup structure of a cup-making machine according to claim 1, characterized in that... The bottom plate of the lower mold base is provided with a top cup shaft mounting groove. The top cup shaft mounting sleeve is installed on the top cup shaft mounting groove. The side of the top cup shaft mounting sleeve is provided with a meshing opening. An upper copper sleeve is installed on the top of the top cup shaft mounting sleeve, and a lower copper sleeve is installed on the bottom of the top cup shaft mounting sleeve. The top cup shaft passes through the upper copper sleeve and the lower copper sleeve. The side of the top cup shaft with a meshing tooth faces the meshing opening. The meshing opening is located between the upper copper sleeve and the lower copper sleeve. The drive gear passes through the meshing opening and meshes with the meshing tooth.

3. The top cup structure of a cup-making machine according to claim 2, characterized in that... The top cup shaft mounting groove includes an upper groove seat and a lower groove opening. The diameter of the upper groove seat is larger than the diameter of the lower groove opening. The upper part of the top cup shaft mounting sleeve extends outward to form a retaining seat integral with the top cup shaft mounting sleeve. The retaining seat is inserted into the upper groove seat.

4. The top cup structure of a cup-making machine according to claim 3, characterized in that... The upper and lower copper sleeves are matched with the top cup shaft. The top cup shaft moves axially within the upper and lower copper sleeves under the drive of the drive mechanism. The upper and lower copper sleeves are inserted into the top cup shaft mounting sleeve. The lower part of the lower copper sleeve extends outward to form a lower limiting ring integrated with the lower copper sleeve. The lower limiting ring is installed at the bottom of the top cup shaft mounting sleeve. A copper sleeve groove seat is provided on the upper part of the top cup shaft mounting sleeve. The top of the upper copper sleeve extends outward to form an upper limiting ring that is inserted into the copper sleeve groove seat.

5. The top cup structure of a cup-making machine according to claim 1, characterized in that... The top of the bearing housing fits into the lower mold base, and the bearing housing is installed at the bottom of the lower mold base through the mounting screw holes on both sides. A rolling bearing is provided in the middle of the bearing housing, and the output shaft of the reducer is rotatably mounted on the rolling bearing.

6. The top cup structure of a cup-making machine according to claim 1, characterized in that... The lower mold base is provided with a drive mechanism mounting bracket on its side. The drive mechanism mounting bracket includes a horizontal mounting surface and a vertical mounting surface. The horizontal mounting surface is perpendicular to the vertical mounting surface. The horizontal mounting surface is attached to the bottom of the lower mold base and is fixedly connected to the lower mold base. The drive mechanism is mounted on the side of the vertical mounting surface away from the horizontal mounting surface.

7. The top cup structure of a cup-making machine according to claim 6, characterized in that... The portion of the vertical mounting surface that is higher than the horizontal mounting surface forms a mounting angle with the horizontal mounting surface, and a support plate is provided between the bottom of the horizontal mounting surface and the vertical mounting surface.

8. The top cup structure of a cup-making machine according to claim 1, characterized in that... The drive motor is a servo motor.

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