Cup jacking structure of cup making machine

Abstract

The invention 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] The present invention relates to the field of cup making machines, and in particular to a cup top structure of a cup making machine. Background Art

[0002] Cup-making machines use thermoforming molds to make plastic cups. After the cups are formed, they need to be ejected to facilitate subsequent removal. The thermoforming molds include an upper mold and a lower mold. Typically, a cup-lifting plate and a fixed bottom bar are provided below the lower mold. The cup-lifting plate can move up and down relative to the lower mold. A cup-lifting bar is provided on the cup-lifting plate and inserted into the lower mold. After the plastic cup is formed, the lower mold moves downward and separates from the upper mold. The fixed bottom bar is located on a frame below the cup-lifting plate. The lower mold drives the cup-lifting plate to strike the bottom bar, which prevents the cup-lifting plate from moving further downward. As the lower mold continues to move downward, the cup-lifting bar above the stationary cup-lifting plate lifts the already formed plastic cup in the lower mold cavity, allowing the plastic cup to be released from the lower mold. Currently, during the cup-lifting process, the cup-lifting plate strikes the fixed bottom bar when ejecting the plastic cup, which not only generates a loud noise but also results in uneven ejection force when the cup is lifted by striking the fixed bottom bar, which can easily affect the product yield and the service life of the mold. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problem that the cup-top structure of the existing cup-making machine has excessive noise and affects the service life of the mold, and to provide a cup-top structure for the cup-making machine.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a cup-lifting structure of a cup-making machine, comprising a lower die base, a driving mechanism and a lifting mechanism, wherein the lower die base is used to install the lower die and the cup-lifting plate, the driving mechanism and the lifting mechanism are installed on the lower die base, and the driving mechanism controls the lifting mechanism to move up and down in the lower die base; the driving mechanism comprises a driving motor and a reducer, the output shaft of the driving motor is connected to the input end of the reducer, and a driving gear is provided on the output shaft of the reducer; the lifting mechanism comprises a cup-lifting shaft and a cup-lifting block, the cup-lifting block is provided on the top of the cup-lifting shaft, and the cup-lifting block is used to move with the cup-lifting plate The top cup plate and the top cup rod on the top cup plate move up and down relative to the lower mold. A top cup shaft mounting sleeve is provided on the lower mold base, and the top cup shaft passes through the top cup shaft mounting sleeve. An engaging tooth is vertically provided on one side of the top cup shaft, and the driving gear is engaged with the engaging tooth. When the mold is opened, the driving gear of the driving mechanism rotates to control the top cup shaft of the lifting mechanism to move upward, thereby making the top cup plate move upward relative to the lower mold, and the 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, and the two bearing seats are respectively located on both sides of the driving gear, and the output shaft of the reducer is installed on the two bearing seats.

[0005] Furthermore, a top cup shaft mounting groove is provided on the bottom plate of the lower die base, the top cup shaft mounting sleeve is installed on the top cup shaft mounting groove, an engaging opening is provided on the side of the top cup shaft mounting sleeve, 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, and the side of the top cup shaft with the engaging teeth faces the engaging opening, the engaging opening is located between the upper copper sleeve and the lower copper sleeve, and the driving gear passes through the engaging opening and engages with the engaging teeth.

[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 clamping seat integrated with the top cup shaft mounting sleeve, the clamping seat is installed in the upper groove seat, and the clamping seat is provided with a mounting screw.

[0007] Furthermore, the upper copper sleeve and the lower copper sleeve are matched with the top cup shaft, and the top cup shaft moves axially in the upper copper sleeve and the lower copper sleeve under the drive of the driving mechanism. The upper copper sleeve and the lower copper sleeve are inserted into the top cup shaft mounting sleeve, and the lower part of the lower copper sleeve extends outward to form a lower limit ring integral with the lower copper sleeve. The lower limit ring is installed at the bottom of the top cup shaft mounting sleeve, and 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 limit ring which is installed in the copper sleeve groove seat.

[0008] Furthermore, the top of the bearing seat is fitted with the lower die seat, and the bearing seat is installed on the bottom of the lower die seat through the mounting screws on both sides. A rolling bearing is provided in the middle of the bearing seat, 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, a drive mechanism mounting frame is provided on the side of the lower mold base, and the drive mechanism mounting frame includes a horizontal mounting surface and a vertical mounting surface. The horizontal mounting surface is perpendicular to the vertical mounting surface, and the horizontal mounting surface is fitted into the bottom of the lower mold base and fixedly connected to the lower mold base. The moving mechanism is installed on the side of the vertical mounting surface away from the horizontal mounting surface.

[0011] Furthermore, a mounting angle is formed between the portion of the vertical mounting surface that is higher than the horizontal mounting surface and 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 driving motor is a servo motor.

[0013] Compared with the prior art, the present invention has the following advantages: 1. When cupping, the cup-pushing plate connected to the lifting mechanism is moved upward by the driving mechanism to achieve cup-pushing. Compared with the traditional method of hitting the fixed bottom rod to push the cup, the noise generated during cup-pushing can be effectively reduced, and the driving mechanism can conveniently adjust the position of the ejector rod, thereby improving the efficiency of mold adjustment; 2. The use of a reducer and a servo motor to drive the lifting mechanism can ensure that the ejection force of the cup-pushing rod is more uniform during cup-pushing. The cooperation of the upper copper sleeve and the lower copper sleeve can ensure the vertical movement of the cup-pushing axis, making the cup-pushing process smoother, which helps to protect the mold, extend the life of the mold and improve the yield rate of the product; 3. When the upper mold and the lower mold are separated, the driving mechanism can control the lifting mechanism to push the cup, without waiting for the lower mold base to move down a distance and hit the fixed bottom rod before pushing the cup, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the driving mechanism and lifting mechanism.

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

[0016] Figure 3 Schematic diagram of an embodiment.

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

[0018] Figure 5 Schematic diagram of the lower die base.

[0019] Figure 6 Schematic diagram of the top cup plate and mold.

[0020] In the figure: 1. driving mechanism; 11. driving motor; 12. speed reducer; 121. driving gear; 2. lifting mechanism; 21. lifting cup shaft; 211. engaging tooth; 22. lifting cup block; 3. lower die seat; 31. lifting cup shaft mounting groove; 311. upper groove seat; 312. lower notch; 32. driving mechanism mounting frame; 321. horizontal mounting surface; 322. vertical mounting surface; 323. support plate; 324. mounting angle; 41. lifting cup shaft mounting sleeve; 411. engaging opening; 412. 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 die; 7. five-point driving structure; 8. lifting cup plate; 81. lifting cup rod. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Embodiment: A cup-lifting structure of a cup-making machine includes a lower die base 3, a driving mechanism 1 and a lifting mechanism 2. The lower die base 3 is used to drive the lower die 6, the cup-lifting plate 8, the driving mechanism 1 and the lifting mechanism 2 to move up and down simultaneously. The lower die base 3 is controlled by the lower die base driving structure 7 on the cup-making machine to move up and down in the cup-making machine. The driving mechanism 1 and the lifting mechanism 2 are installed on the lower die base 3. The driving mechanism 1 controls the lifting mechanism 2 to move up and down in the lower die base 3; the driving mechanism 1 includes a driving motor 11 and a reducer 12, which can When lifting the cup, a stable and uniform ejection force is provided 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 driving gear 121 is provided on the output shaft of the reducer 12; the lifting mechanism 2 includes a cup-lifting shaft 21 and a cup-lifting block 22, and the cup-lifting block 22 is provided on the top of the cup-lifting shaft 21. The cup-lifting block is threadedly connected to the cup-lifting plate by providing a cup-lifting screw, driving the cup-lifting plate 8 and the cup-lifting rod 81 on the cup-lifting plate 8 to move up and down relative to the lower mold 6, and the cup-lifting plate 8 is driven up and down by the cup-lifting block 22 The lower mold base 3 is provided with a cup-top shaft mounting sleeve 41, and the cup-top shaft 21 passes through the cup-top shaft mounting sleeve 41. A bite tooth 211 is vertically provided on one side of the cup-top shaft 21. The driving gear 121 is engaged with the bite tooth 211. The driving motor 11 drives the driving gear 121 to rotate. The driving gear 121 drives the cup-top shaft 21 to move upward or downward through the bite tooth 211. When the mold is opened, the lower mold base driving structure 7 controls the lower mold base to move downward in the cup making machine. At this time, the driving mechanism 1 controls The driving gear 121 rotates to move the lifting mechanism 2 upward, thereby causing the cup-lifting plate 8 to move upward relative to the lower mold 6. At this time, the cup-lifting rod 81 on the cup-lifting plate 8 moves upward to lift the molded plastic cup in the molding cavity of the lower mold 6 to achieve cup lifting; two bearing seats 5 are installed at the bottom of the lower mold base 3, and the two bearing seats 5 are respectively located on both sides of the driving gear 121. The output shaft of the reducer 12 is installed on the two bearing seats 5. The output shaft of the reducer 12 is supported by the bearing seats 5, which can improve the stability of the driving gear 121 during rotation.

[0023] Furthermore, a top cup shaft mounting groove 31 is provided on the bottom plate of the lower mold base 3, and the top cup shaft mounting sleeve 41 is installed on the top cup shaft mounting groove 31. An engaging opening 411 is provided on the side of the top cup shaft mounting sleeve 41, and an upper copper sleeve 42 is installed on the top of the top cup shaft mounting sleeve 41. A lower copper sleeve 43 is installed on the bottom of the top cup shaft mounting sleeve 41. 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-pushing process smoother. The side of the top cup shaft 21 with the engaging tooth 211 faces the engaging opening 411, and the engaging opening 411 is located between the upper copper sleeve 42 and the lower copper sleeve 43. The driving gear 121 passes through the engaging opening 411 and engages with the engaging 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 clamping seat 412 that is integrated with the top cup shaft mounting sleeve 41. The clamping seat 412 is installed in the upper groove seat 311. The clamping seat 412 is provided with a mounting screw mouth, and the top cup shaft mounting sleeve 41 is fixed to the mounting groove by screws.

[0025] Furthermore, the upper copper sleeve 42 and the lower copper sleeve 43 match the top cup shaft, and the top cup shaft 21 moves axially in the upper copper sleeve 42 and the lower copper sleeve 43 under the drive of the driving mechanism 1. 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 top cup process smoother. The upper copper sleeve 42 and the lower copper sleeve 43 are inserted into the top cup shaft mounting sleeve 41, and the lower part of the lower copper sleeve 43 extends outward to form a lower limit ring 431 integral with the lower copper sleeve 43. The lower limit ring 431 is installed on the bottom of the top cup shaft mounting sleeve 41 by screws. A copper sleeve groove seat 413 is provided on the upper part of the top cup shaft mounting sleeve 41. The top of the upper copper sleeve 42 extends outward to form an upper limit ring 421, which is installed in the copper sleeve groove seat 413 and fixed by screws.

[0026] Furthermore, the top of the bearing seat 5 is fitted with the lower die seat 3, and the bearing seat 5 is installed on the bottom of the lower die seat 3 through the mounting screws 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 driving mechanism mounting frame 32 is provided on the side of the lower mold base, and the driving mechanism 32 mounting frame 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 fits the bottom of the lower mold base 3 and is fixed to the lower mold base 3 by screws. The moving mechanism 1 is installed on the side of the vertical mounting surface 322 away from the horizontal mounting surface. The moving 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, a mounting angle 324 is formed between the portion of the vertical mounting surface 321 that is higher than the horizontal mounting surface 321 and the horizontal mounting surface 321, which is clamped on the edge of the lower mold base 3 for easy installation during 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 driving motor 11 is a servo motor, which inputs power to the reducer 12 , and the output shaft of the reducer 12 rotates to drive the jacking structure 2 to move up and down.

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

Claims

1. A cup-lifting structure for a cup-making machine, comprising a lower die base, a driving mechanism and a lifting mechanism, wherein the lower die base is used to install the lower die and the cup-lifting plate, and is characterized in that The driving mechanism and the lifting mechanism are installed on the lower mold base, and the driving mechanism controls the lifting mechanism to move up and down in the lower mold base; the driving mechanism includes a driving motor and a reducer, the output shaft of the driving motor is connected to the input end of the reducer, and a driving gear is provided on the output shaft of the reducer; the lifting mechanism includes a top cup shaft and a top cup block, and the top cup block is arranged at the top of the top cup shaft, and the top cup block 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, and a bite tooth is vertically provided on one side of the top cup shaft, and the driving gear is meshed with the bite tooth. When the mold is opened, the driving 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, and the two bearing seats are respectively located on both sides of the driving gear, and the output shaft of the reducer is installed on the two bearing seats.

2. The cup-making machine top cup structure according to claim 1, characterized in that A top cup shaft mounting groove is provided on the bottom plate of the lower die base, the top cup shaft mounting sleeve is installed on the top cup shaft mounting groove, an engaging opening is provided on the side of the top cup shaft mounting sleeve, 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, and the side of the top cup shaft provided with the engaging teeth faces the engaging opening, and the engaging opening is located between the upper copper sleeve and the lower copper sleeve. The driving gear passes through the engaging opening and engages with the engaging teeth.

3. The cup-making machine top cup structure 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 clamping seat integrated with the top cup shaft mounting sleeve, and the clamping seat is installed in the upper groove seat.

4. The cup-top structure of a cup-making machine according to claim 3, characterized in that The upper copper sleeve and the lower copper sleeve are matched with the top cup shaft. The top cup shaft moves axially in the upper copper sleeve and the lower copper sleeve under the drive of the driving mechanism. The upper copper sleeve and the lower copper sleeve are inserted into the top cup shaft mounting sleeve. The lower part of the lower copper sleeve extends outward to form a lower limit ring integral with the lower copper sleeve. The lower limit 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 limit ring which is installed in the copper sleeve groove seat.

5. The cup-top structure of a cup-making machine according to claim 1, characterized in that The top of the bearing seat is fitted with the lower die seat, and the bearing seat is installed on the bottom of the lower die seat through the mounting screws on both sides. A rolling bearing is provided in the middle of the bearing seat, and the output shaft of the reducer is rotatably mounted on the rolling bearing.

6. The cup-top structure of a cup-making machine according to claim 1, characterized in that A drive mechanism mounting frame is provided on the side of the lower die base, and the drive mechanism mounting frame includes a horizontal mounting surface and a vertical mounting surface. The horizontal mounting surface is perpendicular to the vertical mounting surface, and the horizontal mounting surface is fitted into the bottom of the lower die base and fixedly connected to the lower die base. The moving mechanism is installed on the side of the vertical mounting surface away from the horizontal mounting surface.

7. The cup-top structure of a cup-making machine according to claim 6, characterized in that A mounting angle is formed between the portion of the vertical mounting surface that is higher than the horizontal mounting surface and 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 cup-top structure of a cup-making machine according to claim 1, characterized in that The driving motor is a servo motor.

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