Stacking apparatus for cupping machines

Abstract

This invention discloses a stacking device for a cup-making machine, including a frame. The frame is equipped with a transfer pre-stacking mechanism, a conveying mechanism, a feeding mechanism, a stacking feeding mechanism, and a discharging mechanism. The transfer pre-stacking mechanism includes a pre-assembly frame, a circulating feeding assembly mounted on the pre-assembly frame, and multiple pre-assembly plates mounted on the circulating feeding assembly. Each pre-assembly plate has multiple positioning holes for positioning plastic cups. Driven by the circulating feeding assembly, the pre-assembly plate has a pre-assembly position and a feeding position. The conveying mechanism is located above the transfer pre-stacking mechanism to sequentially transport plastic cups to the positioning holes of the pre-assembly plates at the pre-assembly positions. The feeding mechanism is located below the feeding positions of the pre-assembly plates to push the plastic cups from the pre-assembly plates onto the stacking feeding mechanism. The stacking feeding mechanism transports the plastic cups to the discharging mechanism for discharge. This invention enables the stacking and transposition transport of plastic cups, providing stable and reliable transmission and significantly improving the production efficiency of plastic cups.

Description

Technical Field

[0001] This invention relates to the field of plastic processing equipment technology, and in particular to a stacking device for a cup-making machine. Background Technology

[0002] Plastic cups refer to disposable containers used for holding beverages and tea. Due to their low cost and ease of use, they are widely used in the catering industry. In the production of disposable plastic cups, the plastic film to be formed is passed through a cup forming machine. The cup forming machine then forms multiple plastic cups on the plastic film and separates the formed plastic cups from the original plastic film, thus forming multiple independent disposable plastic cups. The plastic cups are then discharged from the cup forming machine, thus facilitating multiple cup forming operations.

[0003] During the production of plastic cups, they need to be stacked and transported to facilitate subsequent batch packaging. This process is divided into two steps: stacking and transposition transportation. The stacking step involves stacking the plastic cups sequentially on the collection rack, usually vertically from top to bottom. At this time, the collection rack can be considered as being in a vertical state. After stacking is completed, the transposition transportation step is carried out, which requires transporting the collection rack to the packaging conveyor belt for unloading. In order for the stacked plastic cups to be laid flat on the packaging conveyor belt, the vertical state of the collection rack needs to be switched to a horizontal state.

[0004] (1) Regarding the stacking process, the cup-making machine stacking equipment on the market usually stacks plastic cups on the collection rack in sequence, then transports the collection rack to the designated position, takes away the plastic cups on the collection rack, and then sends them back to the collection rack. During this process, the cup-making machine cannot stack plastic cups on the collection rack until the collection rack returns to the collection position, and then the stacking of plastic cups can continue. Due to its intermittent operation, the production efficiency is greatly reduced and it is difficult to cope with the production of large quantities of plastic cups.

[0005] (2) Regarding the transposition and transportation process, the current common practice is to install the collection rack at one end of the swing arm and connect the other end of the swing arm to the motor. The motor drives the swing arm to swing 90°, which in turn drives the collection rack to rotate 90°, thus achieving the switching from the vertical state to the horizontal state. However, since the lever arm of the swing arm is long, the required operating torque is large, which not only puts high demands on the motor (low torque motors are easily damaged and the swing arm movement is unstable), but also the linear velocity of the end of the swing arm away from the swing center is large, and the plastic cup is easily thrown out of the collection rack.

[0006] Therefore, it is necessary to design a more efficient and stable stacking device for the cup-making machine to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a stacking device for a cup-making machine. This invention can stack and reposition plastic cups for transport, ensuring smooth and reliable transmission and significantly improving the production efficiency of plastic cups.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a stacking device for a cup-making machine, comprising a frame, wherein the frame is provided with a transfer pre-stacking mechanism, a conveying mechanism, a feeding mechanism, a stacking feeding mechanism, and a discharging mechanism. The transfer pre-stacking mechanism includes a pre-assembly frame, a circulating feeding component disposed on the pre-assembly frame, and multiple pre-assembly plates disposed on the circulating feeding component. The pre-assembly plates have multiple positioning ports for positioning plastic cups. Under the drive of the circulating feeding component, the pre-assembly plates have a pre-assembly position and a feeding position. The conveying mechanism is disposed above the transfer pre-stacking mechanism for sequentially conveying plastic cups to the positioning port of the pre-assembly plate located at the pre-assembly position. The feeding mechanism is disposed below the feeding position of the pre-assembly plate for ejecting the plastic cups on the pre-assembly plate to the stacking feeding mechanism. The stacking feeding mechanism is used to convey the plastic cups to the discharging mechanism for discharging. By adopting the above technical solution, a transfer and stacking mechanism is added for the pre-stacking of plastic cups. Multiple pre-loading plates with positioning ports circulate through a circulating feeding component. During the movement, there are pre-loading positions and loading positions. When the pre-loading plate is in the pre-loading position, the conveying mechanism transports the plastic cups to the pre-loading plate in sequence for stacking. When the stack reaches a set height (determined by the number of plastic cups), the pre-loading plate is transported to the loading position. The loading mechanism pushes the pre-stacked plastic cups onto the stacking feeding mechanism. At the same time, the empty pre-loading plate moves synchronously to the pre-loading position for cup filling. This cycle is repeated to achieve continuous stacking of plastic cups, enabling the stacking feeding mechanism to circulate the material. The stacking feeding mechanism then transports the plastic cups to the discharge mechanism for discharge. The stacking process is uninterrupted, greatly improving the production efficiency of plastic cups.

[0009] The present invention is further configured such that the circulating feeding assembly includes two chains, two sets of upper sprockets rotatably disposed on the upper end of the pre-assembly frame, and two sets of lower sprockets rotatably disposed on the lower end of the pre-assembly frame. The two sets of lower sprockets are respectively linked by a connecting shaft, one of which is connected to a feeding motor. The chains are meshed with the corresponding upper and lower sprockets. The area between the two sets of upper sprockets forms a transmission plane. The pre-assembly position and the loading position are respectively located at the beginning and end of the transmission plane. The two sides of the pre-assembly plate are respectively connected to the chain links on the corresponding side by fasteners. By adopting the above technical solution, the circulating conveying of the pre-assembly plate is achieved through chain drive, which not only ensures stable transmission but also provides accurate transmission ratio and good synchronization.

[0010] The invention is further configured such that two symmetrically arranged transmission support plates are mounted on the pre-assembly frame, and the portion of the chain between the two sets of upper sprockets abuts against the upper surface of the corresponding transmission support plate. By adopting the above technical solution, the transmission support plate supports the upper chain, enabling it to move horizontally without local sagging, thereby ensuring that the pre-assembly plate can maintain stable horizontal transport and improving the stacking effect of plastic cups.

[0011] The present invention is further configured such that the transfer pre-stacking mechanism further includes a front vibrating cup assembly disposed below the pre-assembly position of the pre-assembly plate. The front vibrating cup assembly includes a first bracket disposed on the pre-assembly frame, a first movable plate slidably disposed on the first bracket, a first support plate disposed on the upper end of the first movable plate, a first vibration motor disposed on the first support plate, and a first vibration plate disposed on the first vibration motor. A plurality of first springs are sandwiched between the first vibration plate and the first support plate, and the first vibration plate and the first support plate are respectively provided with first positioning protrusions for positioning the two ends of the first springs. A first drive motor is disposed at the bottom of the first bracket, and the motor shaft of the first drive motor is linked to a first synchronous pulley. A second synchronous pulley is rotatably mounted on the first bracket at a position corresponding to the position above the first synchronous pulley via a rotating shaft. A first synchronous belt is covered on the first and second synchronous pulleys. The first movable plate is fixedly connected to the vertical extension portion of the first synchronous belt. A first guide rail is also disposed vertically on the first bracket, and a first slider that cooperates with the first guide rail is disposed on the first movable plate. By adopting the above technical solution, a front-mounted vibrating cup assembly is set below the pre-assembly position of the pre-assembly plate. When the pre-assembly plate is used to pre-assemble and stack plastic cups, the synchronous belt assembly drives the first movable plate to move upward, which in turn causes the first vibrating plate to move upward. The first vibrating plate shakes up and down under the vibration of the first vibration motor and acts on the lower end of the plastic cup, so that the plastic cups are stacked in a vibrating environment. This ensures that the plastic cups can remain concentric and stacked tightly together, avoiding tilting or unevenness, and greatly improving the stacking effect of the plastic cups.

[0012] The invention is further configured such that the pre-loading plate, driven by the circulating feeding assembly, also has a set position, which is located between the pre-loading position and the feeding position. The transfer pre-stacking mechanism also includes a set position assembly disposed below the set position of the pre-loading plate. The set position assembly includes a second bracket disposed on the pre-loading frame, a set position cylinder disposed on the second bracket, a second support plate disposed on the movable end of the set position cylinder, a second vibration motor disposed on the second support plate, and a second vibration plate disposed on the second vibration motor. A plurality of second springs are sandwiched between the second vibration plate and the second support plate, and the second vibration plate and the second support plate are respectively provided with second positioning protrusions for positioning the two ends of the second springs. The bottom of the second support plate is also provided with a plurality of guide rods extending vertically, and the second bracket is provided with a plurality of linear bearings that cooperate with the guide rods. By adopting the above technical solution, the bottom of the pre-stacked plastic cups is re-aligned by using a cylinder to drive the vibrating component to extend quickly. This not only further improves the compactness of the plastic cup stacking (uniform vertical spacing), but also eliminates the situation where the plastic cups are stuck in the positioning opening when the previous station is stacking them. As a result, the plastic cups will not be damaged or deformed due to forced ejection during subsequent unloading, which helps to improve product quality.

[0013] The present invention is further configured such that the conveying mechanism includes a fixed bracket disposed on the upper end of the frame, a movable transverse movable seat disposed on the fixed bracket, a movable vertical movable seat disposed on the transverse movable seat, a cantilever mounted on the vertical movable seat, a suction cup mounting plate disposed on the cantilever, and a plurality of vacuum suction cups disposed on the suction cup mounting plate. The fixed bracket is provided with a plurality of transverse guide rails, and the transverse movable seat is provided with a plurality of transverse sliders that cooperate with the transverse guide rails. The fixed bracket is also provided with a first synchronous belt drive assembly connected to the transverse movable seat for driving the transverse movable seat to slide along the extension direction of the transverse guide rails. The transverse movable seat is provided with a plurality of vertical guide rails, and the vertical movable seat is provided with a plurality of vertical sliders that cooperate with the vertical guide rails. The transverse movable seat is provided with a second synchronous belt drive assembly connected to the vertical movable seat for driving the vertical movable seat to slide along the extension direction of the vertical guide rails. By adopting the above technical solution, the handling mechanism can quickly grasp and release the injection-molded plastic cups by driving the vacuum suction cups to perform two actions: horizontal and vertical movement, ensuring that the plastic cups can be efficiently stacked on the pre-assembly plate.

[0014] The invention is further configured such that the feeding mechanism includes two sets of vertical synchronous belt drive assemblies, with lifting beams connected to the movable ends of the two sets of vertical synchronous belt drive assemblies. A mounting base plate is connected to the lifting beams, and the mounting base plate is provided with multiple push rods corresponding to the positioning holes on the pre-assembly plate. The upper end of each push rod is provided with a pushing disc for pushing the plastic cups out of the corresponding positioning holes during upward movement. By adopting the above technical solution, using the vertical synchronous belt drive assemblies as the driving source, the push rods drive the pushing discs to quickly push the plastic cups on the pre-assembly plate into the stacking feeding mechanism. The action is rapid and stable, which helps to improve overall production efficiency.

[0015] The present invention is further configured such that the stacking feeding mechanism includes a displacement seat that can be movably mounted laterally on the frame, two support seats that can be movably mounted vertically and synchronously on the displacement seat, and a collection frame that can be rotatably mounted between the two support seats. The collection frame has multiple accommodating cavities for accommodating plastic cups. When the collection frame rotates, it has a vertical state where the extension direction of the accommodating cavities is perpendicular to the horizontal plane, and a horizontal state where the extension direction of the accommodating cavities is parallel to the horizontal plane. By adopting the above technical solution, firstly, the collection frame is given the function of movement in both the horizontal and vertical directions, enabling it to accurately reach the loading and unloading positions. Furthermore, the collection frame itself can rotate, switching between the vertical and horizontal states according to the loading or unloading process, ensuring accurate and rapid loading or unloading. It uses a translational + rotation method to achieve stable transportation and posture adjustment of stacked plastic cups. Compared with the swing switching structure of the prior art, this greatly improves the stability of the mechanism and helps to improve the production efficiency of plastic cups.

[0016] The invention is further configured such that the frame has two parallel horizontal guide rails, the displacement seat has two sets of horizontal sliders that slide in cooperation with the corresponding horizontal guide rails, the frame also has a horizontal synchronous belt extending parallel to the horizontal guide rails, a motor mount is mounted on the displacement seat, a displacement motor is mounted on the motor mount, and a crawling synchronous pulley is linkedly mounted on the motor shaft of the displacement motor, the crawling synchronous pulley meshing with the horizontal synchronous belt. By adopting the above technical solution, the displacement motor drives the crawling synchronous pulley to rotate, and the meshing of the crawling synchronous pulley with the horizontal synchronous belt achieves horizontal displacement transmission, allowing the displacement seat to slide stably along the extension direction of the horizontal guide rails, resulting in a very smooth and reliable transmission.

[0017] The invention is further configured such that a tension bearing is connected by screws to each of the left and right sides of the motor base corresponding to the crawling synchronous pulley. The tension bearing abuts against the other side of the horizontal synchronous belt corresponding to the crawling synchronous pulley, forming an inverted V-shaped transmission section between the two tension bearings that tightly engages with the crawling synchronous pulley. By employing the above technical solution, the tension bearings restrict the horizontal synchronous belt, pressing it firmly against the surface of the crawling synchronous pulley, ensuring a tight fit between the crawling synchronous pulley and the horizontal synchronous belt, preventing slippage, and guaranteeing transmission reliability.

[0018] The invention is further configured such that two parallel driving shafts and driven shafts are rotatably mounted on the displacement seat, with the extension directions of both shafts perpendicular to the extension direction of the horizontal guide rail. A driving gear is mounted at each end of the driving shaft, and a driven gear is mounted at each end of the driven shaft. The driving gear meshes with its corresponding driven gear. A horizontal motor is also mounted on the displacement seat, with its motor shaft linked to one end of the driving shaft. Two vertically extending guide rails are mounted on the support base, and a vertical slider that engages with the guide rails is provided on the displacement seat. Vertically extending racks are also connected to the guide rails, with the racks on the two guide rails meshing with their corresponding driving and driven gears. By adopting the above technical solution, this design enables the lifting and lowering of the collection rack with smooth and reliable transmission and accurate position control.

[0019] The invention is further configured such that drive shafts are symmetrically arranged on both sides of the collection rack, and the support base is provided with support bearing seats that cooperate with the corresponding drive shafts. A rotary motor is installed on the side of one of the support bearing seats, and the motor shaft of the rotary motor is linked to the corresponding drive shaft. By adopting the above technical solution, the collection rack is directly driven to rotate by a rotary motor, which has the advantages of stable speed and small space occupation.

[0020] The invention is further configured such that the collecting rack includes a square frame body, with two support bases respectively disposed on the left and right sides of the frame body. Multiple sets of guiding components are provided within the frame body, each set including multiple guiding rods distributed along a circular trajectory. The two ends of each guiding rod are connected to the upper and lower ends of the frame body, respectively. The multiple guiding rods of each set of guiding components enclose and form the receiving cavity. The upper and lower ends of the frame body are respectively provided with an inlet and outlet for plastic cups to enter and exit the receiving cavity. By adopting the above technical solution, the receiving cavity formed by multiple guiding rods can not only slightly adapt to plastic cups of different outer diameters, but also return to its correct position even with slight displacement, thus enhancing its practicality.

[0021] The invention is further configured such that the guide rod includes a rod core, a rod sleeve, and two anti-loosening telescopic blocks. The rod sleeve is fixedly connected to the outer periphery of the rod core by a pin. A guide inner hole is provided through the side of the rod core. A guide outer hole is provided at each end of the rod sleeve corresponding to the guide hole. The width of the guide outer hole is smaller than the width of the guide inner hole. The two anti-loosening telescopic blocks are symmetrically arranged in the guide inner hole, and multiple telescopic springs are provided between the two anti-loosening telescopic blocks. The outer end of the anti-loosening telescopic block is provided with a pressing part extending out of the guide outer hole. The telescopic direction of the anti-loosening telescopic block is oriented towards or away from the center of the accommodating cavity. By adopting the above technical solution, by setting radially telescopic anti-loosening telescopic blocks on the guide rod, multiple radial constraint forces can be provided for the stacked plastic cups, thereby improving their stability during displacement and posture changes. Moreover, with two symmetrical anti-loosening telescopic blocks on one guide rod, when two adjacent sets of guide components share one guide rod, the two anti-loosening telescopic blocks of the guide rod can respectively constrain the two sets of stacked plastic cups, resulting in strong versatility.

[0022] The invention is further configured such that a baffle is connected to the bottom of the frame body, and the baffle has multiple front inlets corresponding to the inlets and outlets. A switching channel is provided between the frame body and the baffle. A small bracket is also provided at the bottom of the frame body, and a switching cylinder is installed on the small bracket. A switching plate is connected to the movable end of the switching cylinder. The switching plate is movably disposed in the switching channel. The switching plate has multiple through-holes corresponding to the inlets and outlets. When the switching cylinder drives the switching plate to move, the switching plate has a first position in which the through-holes are completely connected to the corresponding inlets and outlets, and a second position in which the through-holes are offset from the corresponding inlets and outlets, so that the switching plate partially or completely blocks the inlets and outlets. By adopting the above technical solution, when the collection rack moves to the loading position, the switching plate can be driven by the switching cylinder to move from the second position to the first position, thereby pushing the stacked plastic cups into the receiving cavity of the collection rack. Then, the switching cylinder can be driven by the switching plate to move from the first position to the second position, blocking the bottom inlet and outlet to prevent the plastic cups from falling out. At this time, the collection rack can be smoothly transported to the discharge position. Even if the collection rack changes its posture by 90°, the plastic cups will not easily fall out, greatly improving the transportation stability.

[0023] The invention is further configured such that the discharge mechanism includes a discharge synchronous belt drive assembly, discharge positioning grooves evenly distributed along the transmission direction of the discharge synchronous belt drive assembly, and two sets of top cup transport assemblies symmetrically arranged on both sides of the discharge synchronous belt drive assembly. The top cup transport assembly includes a top cup frame, a top cup seat movably arranged on the top cup frame, and a top cup plate arranged on the top cup seat. The top cup frame is provided with multiple top cup guide rails extending perpendicular to the transmission direction of the discharge synchronous belt drive assembly. The bottom of the top cup seat is provided with multiple top cup sliders that slide with the top cup guide rails. The top cup frame is also provided with a top cup synchronous belt drive assembly connected to the top cup seat for driving the top cup seat to move along the direction of the top cup guide rails. The upper and lower ends of the frame body are provided with multiple first elongated holes for inserting the top cup plate. The first elongated holes connect multiple inlets and outlets in the same row. The baffle is provided with multiple second elongated holes for inserting corresponding top cup plates. The second elongated holes connect multiple front inlets in the same row. By adopting the above technical solution, after the collection rack reaches the discharge position, the switching plate is driven by the switching cylinder to move from the second position to the first position. The two sets of top cup synchronous belt drive components drive the two sets of top cup transport components to move, so that the two top cup plates are pressed against the two ends of the stacked plastic cups. Then, the two sets of top cup synchronous belt drive components move to make the stacked plastic cups clamped and transported to the corresponding discharge positioning slots. This cycle repeats, and the stacked plastic cups in each accommodating cavity are transported to the corresponding discharge positioning slots in sequence. The plastic cups are stacked tightly and evenly, which is beneficial to the subsequent packaging process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the pre-stacking mechanism, the handling mechanism, and the feeding mechanism in this invention; Figure 3 This is a schematic diagram of the transfer pre-stacking mechanism and the feeding mechanism in this invention; Figure 4 This is a schematic diagram of the support structure of the chain in this invention; Figure 5 This is a schematic diagram of the front-mounted vibrating cup assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the tuning component of the present invention; Figure 7 This is a schematic diagram of the transport mechanism of the present invention; Figure 8 This is a schematic diagram of the feeding mechanism of the present invention; Figure 9 This is a schematic diagram of the stacking feeding mechanism of the present invention; Figure 10 This is a partially enlarged structural schematic diagram of the stacking feeding mechanism of the present invention; Figure 11 This is a schematic diagram of the rotating structure of the collection rack of the present invention; Figure 12 This is a partial structural schematic diagram of the guide rod of the present invention; Figure 13 This is a cross-sectional view of the guide rod of the present invention; Figure 14 This is a schematic diagram of the bottom structure of the collection rack of the present invention; Figure 15 for Figure 14 A schematic diagram of the structure after removing the baffle; Figure 16 This is a schematic diagram of the material discharge mechanism of the present invention; Figure 17 This is a schematic diagram of the top cup transport assembly of the present invention.

[0025] In the diagram: 1. Frame; 2. Transfer pre-stacking mechanism; 3. Handling mechanism; 4. Feeding mechanism; 5. Pre-assembly frame; 6. Circulating feeding assembly; 7. Pre-assembly plate; 8. Positioning port; 9. Chain; 10. Upper sprocket; 11. Lower sprocket; 12. Connecting shaft; 13. Feeding motor; 14. Transmission support plate; 15. Front vibrating cup assembly; 16. First bracket; 17. First movable plate; 18. First support plate; 19. First vibrating plate; 20. First spring; 21. First positioning protrusion; 22. First drive motor; 23. First synchronous pulley; 24. Second synchronous pulley; 25. First synchronous belt; 26. First guide rail; 27. First slider; 28. Complete assembly 29. Fixed component; 30. Second bracket; 31. Adjusting cylinder; 32. Second support plate; 33. Second vibration motor; 34. Second vibration plate; 35. Second positioning protrusion; 36. Guide rod; 37. Linear bearing; 38. Fixed bracket; 39. Horizontal movable seat; 40. Vertical movable seat; 41. Cantilever; 42. Suction cup mounting plate; 43. Vacuum suction cup; 44. Horizontal guide rail; 45. Horizontal slider; 46. First synchronous belt drive assembly; 47. Vertical guide rail; 48. Vertical slider; 49. Second synchronous belt drive assembly; 50. Vertical synchronous belt drive assembly; 51. Lifting beam; 52. Mounting base plate; 53. Top rod; 54. Pushing disc; 55. First vibration motor; 56. Displacement seat; 57. Support seat; 58. Collecting rack; 59. Receiving cavity; 60. Horizontal guide rail; 61. Horizontal slider; 62. Horizontal synchronous belt; 63. Motor base; 64. Displacement motor; 65. Crawling synchronous pulley; 66. Tension bearing; 67. Inverted V-shaped transmission part; 68. Drive shaft; 69. Driven shaft; 70. Drive gear; 71. Driven gear; 72. Horizontal motor; 73. Vertical guide rail; 74. Vertical slider; 75. Rack; 76. Transmission shaft; 77. Support bearing seat; 78. Rotating motor; 79. Frame body; 80. Guide rod; 81. Inlet and outlet; 82. Rod 83. Core; 84. Rod sleeve; 85. Anti-loosening telescopic block; 86. Guide inner hole; 87. Guide outer hole; 88. Telescopic spring; 89. Clamping part; 90. Baffle; 91. Front inlet; 92. Switching channel; 93. Small bracket; 94. Switching cylinder; 95. Switching plate; 96. Through port; 97. Stacking feeding mechanism; 98. Discharge mechanism; 99. Discharge synchronous belt drive assembly; 100. Discharge positioning groove; 101. Top cup handling assembly; 102. Top cup holder; 103. Top cup plate; 104. Top cup guide rail; 105. Top cup slider; 106. Top cup synchronous belt drive assembly; 107. First long hole; 108. Second long hole. Detailed Implementation

[0026] The technical solutions of 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.

[0027] Example: As attached Figures 1-17 The stacking device of the cup-making machine shown includes a frame 1. The frame 1 is equipped with a transfer pre-stacking mechanism 2, a conveying mechanism 3, a feeding mechanism 4, a stacking feeding mechanism 96, and a discharging mechanism 97. The transfer pre-stacking mechanism 2 includes a pre-assembly frame 5, a circulating feeding assembly 6 disposed on the pre-assembly frame 5, and multiple pre-assembly plates 7 disposed on the circulating feeding assembly 6. The pre-assembly plates 7 have multiple positioning holes 8 for positioning plastic cups. The pre-assembly plates 7 have pre-positioning holes 8 under the action of the circulating feeding assembly 6. The conveying mechanism 3 is located above the transfer pre-stacking mechanism 2 and is used to sequentially transport plastic cups to the positioning port 8 of the pre-assembly plate 7 located at the pre-assembly position. That is, the body of the plastic cup at the bottom is inserted into the positioning port 8, and the cup rim abuts against the upper surface of the pre-assembly plate 7. The feeding mechanism 4 is located below the feeding position of the pre-assembly plate 7 and is used to push the plastic cups on the pre-assembly plate 7 onto the stacking feeding mechanism 96. The stacking feeding mechanism 96 is used to transport the plastic cups to the discharge mechanism 97 for discharge. An intermediate stacking mechanism is added for the pre-stacking of plastic cups. Multiple pre-assembly plates 7 with positioning ports 8 circulate through the circulating feeding assembly 6. During the movement, there are pre-assembly positions and loading positions. When the pre-assembly plate 7 is in the pre-assembly position, the conveying mechanism 3 transports the plastic cups to the pre-assembly plate 7 in sequence for stacking. When the stack reaches a set height (determined by the number of plastic cups), the pre-assembly plate 7 is conveyed to the loading position. The loading mechanism 4 pushes the pre-stacked plastic cups out onto the stacking feeding mechanism 96. At the same time, the empty pre-assembly plate 7 moves synchronously to the pre-assembly position for cup filling. This process is repeated to achieve continuous stacking of plastic cups, enabling the stacking feeding mechanism 96 to circulate and then convey the plastic cups to the discharge mechanism 97 for discharge. The stacking process is uninterrupted, improving the production efficiency of plastic cups.

[0028] As attached Figure 3As shown, the circulating feeding assembly 6 includes two chains 9, two sets of upper sprockets 10 rotatably mounted on the upper end of the pre-loading frame 5, and two sets of lower sprockets 11 rotatably mounted on the lower end of the pre-loading frame 5. The two sets of lower sprockets 11 are linked together by a connecting shaft 12, one of which is connected to a feeding motor 13. More specifically, a corresponding number of lower bearing seats are provided at the lower end of the pre-loading frame 5, and the two ends of the connecting shaft 12 are rotatably mounted in the corresponding lower bearing seats. A corresponding number of upper bearing seats are provided at the upper end of the pre-loading frame 5, and a sprocket shaft is rotatably mounted on the upper bearing seats. The upper sprockets 10 are connected to the sprocket shafts, and the chains 9 are meshed with the corresponding upper sprockets 10 and lower sprockets 11. The two chains 9 are symmetrically arranged, and the area between the two sets of upper sprockets 10 forms a transmission plane. The pre-loading position and the feeding position are respectively located at the beginning and end of the transmission plane. The two sides of the pre-loading plate 7 are respectively connected to the links of the corresponding chain 9 by fasteners. The pre-assembled plate 7 is cyclically conveyed via chain drive 9, ensuring stable transmission, accurate transmission ratio, and good synchronization. (See attached image.) Figure 4 As shown, two symmetrically arranged transmission support plates 14 are also provided on the pre-assembly frame 5. The portion of the chain 9 corresponding to the two sets of upper sprockets 10 abuts against the upper end surface of the corresponding transmission support plate 14. That is, the two transmission support plates 14 are used to support the two chains 9 respectively. The transmission support plates 14 support the upper chain 9, enabling it to move horizontally without local sagging, thereby ensuring that the pre-assembly plate 7 can maintain stable horizontal transportation and improve the stacking effect of plastic cups.

[0029] As attached Figure 3 and attached Figure 5As shown, the transfer pre-stacking mechanism 2 further includes a front vibrating cup assembly 15 disposed below the pre-assembly position of the pre-assembly plate 7. The front vibrating cup assembly 15 includes a first bracket 16 disposed on the pre-assembly frame 5, a first movable plate 17 vertically slidable on the first bracket 16, a first support plate 18 disposed on the upper end of the first movable plate 17, a first vibration motor 55 disposed on the first support plate 18, and a first vibrating plate 19 disposed on the first vibration motor 55. A plurality of first springs 20 are sandwiched between the first vibrating plate 19 and the first support plate 18, and the first vibrating plate 19 and the first support plate 18 are respectively provided with first positioning protrusions 21 for positioning the two ends of the first springs 20. The bottom of the first bracket 16 is provided with A first drive motor 22 is connected to a first synchronous pulley 23 via its motor shaft. A second synchronous pulley 24 is mounted on the first bracket 16 above the first synchronous pulley 23 via a rotating shaft. A first synchronous belt 25 covers the first synchronous pulley 23 and the second synchronous pulley 24. The first movable plate 17 is fixedly connected to the vertical extension of the first synchronous belt 25 by means of a clamping plate and screws, thereby clamping and fixing the first synchronous belt 25 and achieving the effect of the first synchronous belt 25 driving the first movable plate 17 to move. A first guide rail 26 is also provided vertically on the first bracket 16, and a first slider 27 that cooperates with the first guide rail 26 is provided on the first movable plate 17. A front-mounted vibrating cup assembly 15 is set below the pre-mounting position of the pre-mounting plate 7. When the pre-mounting plate 7 is used for pre-mounting and stacking plastic cups, the first movable plate 17 is driven upward by the synchronous belt assembly, which in turn causes the first vibrating plate 19 to move upward. The first vibrating plate 19 moves up and down under the vibration of the first vibration motor 55 and acts on the lower end of the plastic cup, so that the plastic cups are stacked in a vibrating environment, thereby ensuring that the plastic cups can remain concentric and stacked tightly together, avoiding tilting or unevenness, and greatly improving the stacking effect of the plastic cups.

[0030] As attached Figure 3 and attached Figure 6As shown, the pre-assembly plate 7 also has a set position under the drive of the circulating feeding component 6. The set position is located between the pre-assembly position and the feeding position. The transfer pre-stacking mechanism 2 also includes a set position component 28 set below the set position of the pre-assembly plate 7. The set position component 28 includes a second bracket 29 set on the pre-assembly frame 5, a set position cylinder 30 set on the second bracket 29, a second support plate 31 set on the movable end of the set position cylinder 30, a second vibration motor 32 set on the second support plate 31, and a second vibration plate 33 set on the second vibration motor 32. A plurality of second springs 34 are sandwiched between the second vibration plate 33 and the second support plate 31. The second vibration plate 33 and the second support plate 31 are respectively provided with second positioning protrusions 35 for positioning the two ends of the second springs 34. The bottom of the second support plate 31 is also provided with a plurality of guide rods 36 extending vertically. The second bracket 29 is provided with a plurality of linear bearings 37 that cooperate with the guide rods 36. By using a cylinder to drive the vibrating component to extend quickly, the bottom of the pre-stacked plastic cups is re-aligned. This not only further improves the compactness of the plastic cup stack (uniform vertical spacing), but also eliminates the situation where the plastic cups are stuck in the positioning port 8 when stacking plastic cups in the previous station. As a result, the plastic cups will not be damaged or deformed due to forced ejection during subsequent unloading, which helps to improve product quality.

[0031] As attached Figure 2 and attached Figure 7As shown, the conveying mechanism 3 includes a fixed bracket 38 mounted on the upper end of the frame 1, a movable transverse movable seat 39 mounted on the fixed bracket 38, a movable vertical movable seat 40 mounted on the transverse movable seat 39, a cantilever 41 mounted on the vertical movable seat 40, a suction cup mounting plate 42 mounted on the cantilever 41, and multiple vacuum suction cups 43 mounted on the suction cup mounting plate 42. The fixed bracket 38 is provided with multiple transverse guide rails 44, and the transverse movable seat 39 is provided with multiple transverse sliders 45 that cooperate with the transverse guide rails 44. The fixed bracket 38 is also equipped with a device connected to the transverse movable seat 39 for driving the transverse movable seat 39 along the transverse... The first synchronous belt drive assembly 46 slides along the extension direction of the guide rail 44. The transverse movable seat 39 is provided with multiple vertical guide rails 47. The vertical movable seat 40 is provided with multiple vertical sliders 48 that cooperate with the vertical guide rails 47. The transverse movable seat 39 is provided with a second synchronous belt drive assembly 49 connected to the vertical movable seat 40 for driving the vertical movable seat 40 to slide along the extension direction of the vertical guide rails 47. The first and second synchronous belt drive assemblies 46 and 49 are existing technologies, consisting of a motor, a synchronous belt, and a synchronous pulley. When the motor operates, it drives the synchronous belt through the synchronous pulley. The specific structural details are not described here. The conveying mechanism 3 achieves rapid gripping and placement of injection-molded plastic cups by driving the vacuum suction cup 43 to perform both transverse and vertical movements, ensuring that the plastic cups can be efficiently stacked on the pre-assembly plate 7.

[0032] As attached Figure 2 and attached Figure 8 As shown, the feeding mechanism 4 includes two sets of vertical synchronous belt drive assemblies 50. A lifting beam 51 is connected to the movable end of each set of vertical synchronous belt drive assemblies 50. A mounting base plate 52 is connected to the lifting beam 51. The mounting base plate 52 is provided with multiple push rods 53 corresponding to the positioning holes 8 on the pre-assembly plate 7. The upper end of each push rod 53 is provided with a pushing disc 54 for pushing the plastic cup out of the corresponding positioning hole 8 during upward movement. The two sets of vertical synchronous belt drive assemblies 50 are existing technology, consisting of a motor, synchronous belt, and synchronous pulley. When the motor operates, it drives the synchronous belt through the synchronous pulley. The specific structural configuration is not described in detail here. Using the vertical synchronous belt drive assemblies 50 as the driving source, the push rods 53 drive the pushing disc 54 to quickly push the plastic cup on the pre-assembly plate 7 into the stacking feeding mechanism 96. The action is rapid and stable, which helps improve overall production efficiency.

[0033] As attached Figures 9-15As shown, the stacking and feeding mechanism 96 includes a frame 1, a displacement seat 56 that can be horizontally movably arranged on the frame 1, two support seats 57 that can be vertically and synchronously movably arranged on the displacement seat 56, and a collection rack 58 that can be rotatably arranged between the two support seats 57. The collection rack 58 has multiple accommodating cavities 59 for accommodating plastic cups. When the collection rack 58 rotates, it has a vertical state where the extension direction of the accommodating cavities 59 is perpendicular to the horizontal plane, and a horizontal state where the extension direction of the accommodating cavities 59 is parallel to the horizontal plane. Firstly, the collection rack 58 is given the function of movement in both the horizontal and vertical directions, enabling it to accurately reach the loading and unloading positions. Based on this, the collection rack 58 itself can rotate, switching between the vertical and horizontal states according to the loading or unloading process, ensuring accurate and rapid loading or unloading. It uses a translation + rotation method to achieve stable transportation and posture adjustment of stacked plastic cups. Compared with the swing switching structure of the prior art, this greatly improves the stability of the mechanism and helps to improve the production efficiency of plastic cups.

[0034] As attached Figure 9 and attached Figure 10 As shown, the frame 1 is equipped with two parallel horizontal guide rails 60. The displacement seat 56 is equipped with two sets of horizontal sliders 61 that are slidably engaged with the corresponding horizontal guide rails 60. The frame 1 is also equipped with a horizontal synchronous belt 62 whose extension direction is parallel to the horizontal guide rails 60. A motor seat 63 is mounted on the displacement seat 56, and a displacement motor 64 is mounted on the motor seat 63. A crawling synchronous wheel 65 is linkedly mounted on the motor shaft of the displacement motor 64. The crawling synchronous wheel 65 meshes with the horizontal synchronous belt 62, that is, the surface of the horizontal synchronous belt 62 has multiple protruding teeth evenly distributed, and the outer surface of the crawling synchronous wheel 65 has multiple tooth grooves evenly distributed to match the protruding teeth. The displacement motor 64 drives the crawling synchronous wheel 65 to rotate, and the crawling synchronous wheel 65 meshes with the horizontal synchronous belt 62 to achieve horizontal displacement transmission, so that the displacement seat 56 slides stably along the extension direction of the horizontal guide rails 60, and the transmission is very smooth and reliable.

[0035] As attached Figure 10 As shown, the motor base 63 has a tension bearing 66 connected to each of the left and right sides of the crawling synchronous pulley 65 by screws. The central axis of the two tension bearings 66 is slightly lower than the central axis of the crawling synchronous pulley 65. The tension bearings 66 abut against the other side of the horizontal synchronous belt 62 corresponding to the crawling synchronous pulley 65, so that the horizontal synchronous belt 62 forms an inverted V-shaped transmission part 67 between the two tension bearings 66, which is in close contact with the crawling synchronous pulley 65. By restricting the tension bearings 66, the horizontal synchronous belt 62 is pressed tightly against the surface of the crawling synchronous pulley 65, so that the crawling synchronous pulley and the horizontal synchronous belt 62 are in close contact, avoiding slippage and ensuring transmission reliability.

[0036] As attached Figure 9 and attached Figure 10 As shown, two parallel drive shafts 68 and driven shafts 69 are rotatably mounted on the displacement seat 56. Two deep groove ball bearings are respectively installed at both ends of the displacement seat 56. The ends of the drive shafts 68 and 69 are respectively engaged with their corresponding deep groove ball bearings. The extending directions of the drive shafts 68 and 69 are perpendicular to the extending direction of the horizontal guide rail 60. A drive gear 70 is installed at each end of the drive shaft 68, and a driven gear 71 is installed at each end of the driven shaft 69. The drive gears 70 mesh with their corresponding driven gears 71. A horizontal motor 7 is also mounted on the displacement seat 56. 2. The motor shaft of the horizontal motor 72 is linked to one end of the drive shaft 68. Two vertically extending guide rails 73 are mounted on the support base 57. A vertical slider 74, which cooperates with the guide rails 73, is provided on the displacement seat 56. Vertically extending racks 75 are also connected to the guide rails 73. The racks 75 on the two guide rails 73 mesh with the corresponding drive gear 70 and driven gear 71, respectively. When the drive gear 70 on one side drives the driven gear 71 to rotate, the two racks 75 on that side rise or fall simultaneously. Similarly, the two racks 75 on the other side rise or fall synchronously. This design enables the collection rack 58 to be raised and lowered, with smooth and reliable transmission and accurate position control.

[0037] As attached Figure 11 As shown, drive shafts 76 are symmetrically arranged on both sides of the collection rack 58. The support base 57 is provided with a support bearing seat 77 that cooperates with the corresponding drive shaft 76. A rotary motor 78 is installed on the side of one of the support bearing seats 77. The motor shaft of the rotary motor 78 is linked to the corresponding drive shaft 76. The collection rack 58 is directly driven to rotate by the rotary motor, which has the advantages of stable speed and small space occupation.

[0038] As attached Figure 11 As shown, the collection rack 58 includes a square frame body 79, with two support bases 57 respectively disposed on the left and right sides of the frame body 79. The frame body 79 contains multiple sets of guiding components, each set including multiple guiding rods 80 distributed along a circular trajectory. The two ends of each guiding rod 80 are connected to the upper and lower ends of the frame body 79, respectively. The multiple guiding rods 80 of each set of guiding components enclose and form the receiving cavity 59. The upper and lower ends of the frame body 79 are respectively provided with an inlet / outlet 81 for plastic cups to enter and exit the receiving cavity 59. The receiving cavity 59 formed by multiple guiding rods 80 can not only slightly adapt to plastic cups of different outer diameters, but also return to its correct position even with slight misalignment, making it more practical.

[0039] As attached Figure 12 and attached Figure 13As shown, the guide rod 80 includes a rod core 82, a rod sleeve 83, and two anti-loosening telescopic blocks 84. The rod sleeve 83 is fixedly connected to the outer periphery of the rod core 82 by a pin. The upper and lower ends of the rod core 82 are respectively connected to the upper and lower ends of the frame body 79 by screws. A guide inner hole 85 is provided through the side of the rod core 82. A guide outer hole 86 is provided at each end of the guide hole corresponding to the two ends of the guide hole. The width of the guide outer hole 86 is smaller than the width of the guide inner hole 85, thus forming a limiting step between them. The two anti-loosening telescopic blocks... 84 are symmetrically arranged in the guide inner hole 85, and multiple telescopic springs 87 are arranged between the two anti-loosening telescopic blocks 84. A spring groove is provided on the inner side of the anti-loosening telescopic block 84 for positioning the telescopic springs 87. The outer end of the anti-loosening telescopic block 84 is provided with a pressing part 88 extending out of the guide outer hole 86. The width of the pressing part 88 is equivalent to the width of the guide outer hole 86. The telescopic direction of the anti-loosening telescopic block 84 is oriented towards or away from the center of the receiving cavity 59. The anti-loosening telescopic block 84 is a vertically extending strip shape, and the upper and lower ends of the pressing part 88 are provided with guide slopes. By setting radially retractable anti-loosening telescopic blocks 84 on the guide rod 80, multiple radial constraint forces can be provided for the stacked plastic cups, thereby improving their stability during displacement and posture changes. Furthermore, two symmetrical anti-loosening telescopic blocks 84 are configured on one guide rod 80. When two adjacent groups of guide components share one guide rod 80, the two anti-loosening telescopic blocks 84 of the guide rod 80 can respectively constrain the two groups of stacked plastic cups, making it highly versatile.

[0040] As attached Figure 14 and attached Figure 15As shown, a baffle 89 is connected to the bottom of the frame body 79. The baffle 89 has multiple front inlets 90 corresponding to the inlets and outlets 81. A switching channel 91 is provided between the frame body 79 and the baffle 89. A small bracket 92 is also provided at the bottom of the frame body 79. A switching cylinder 93 is installed on the small bracket 92. A switching plate 94 is connected to the movable end of the switching cylinder 93. The switching plate 94 is movably disposed in the switching channel 91. The switching plate 94 has multiple openings 95 corresponding to the inlets and outlets 81. When the switching cylinder 93 drives the switching plate 94 to move, the switching plate 94 has a first position where the openings 95 are completely connected to the corresponding inlets and outlets 81, and a second position where the openings 95 are staggered from the corresponding inlets and outlets 81, so that the switching plate 94 partially or completely blocks the inlets and outlets 81. When the collection rack 58 moves to the loading position, the switching plate 94 can be driven by the switching cylinder 93 to move from the second position to the first position, thereby pushing the stacked plastic cups into the receiving cavity 59 of the collection rack 58. Then, the switching plate 94 can be driven by the switching cylinder 93 to move from the first position to the second position, blocking the bottom inlet and outlet 81 to prevent the plastic cups from falling out. At this time, the collection rack 58 can be transported smoothly to the discharge position. Even if the collection rack 58 changes its posture by 90°, the plastic cups will not easily fall out, which greatly improves the transportation stability.

[0041] As attached Figure 16 and attached Figure 17As shown, the discharge mechanism 97 includes a discharge synchronous belt drive assembly 98, discharge positioning grooves 99 (with a conical cross-section) evenly distributed along the transmission direction of the discharge synchronous belt drive assembly 98, and two sets of top cup conveying assemblies 100 symmetrically arranged on both sides of the discharge synchronous belt drive assembly 98. The top cup conveying assembly 100 includes a top cup holder 101, a top cup seat 102 movably disposed on the top cup holder 101, and a top cup plate 103 disposed on the top cup seat 102. The top cup holder 101 is provided with a plurality of top cup guide rails 104 extending perpendicular to the transmission direction of the discharge synchronous belt drive assembly 98. The bottom of the top cup seat 102 is provided with... The top cup has multiple top cup sliders 105 that slide in cooperation with the top cup guide rail 104. The top cup holder 101 is also equipped with a top cup synchronous belt drive assembly 106 connected to the top cup seat 102 for driving the top cup seat 102 to move along the top cup guide rail 104. The upper and lower ends of the frame body 79 each have multiple first elongated holes 107 for inserting the top cup plate 103. These first elongated holes 107 connect multiple inlets / outlets 81 in the same row. The baffle 89 has multiple second elongated holes 108 for inserting corresponding top cup plates 103. These second elongated holes 108 connect multiple front inlets 90 in the same row. Both the discharge synchronous belt drive assembly 98 and the top cup synchronous belt drive assembly 106 are commercially available mass-produced parts. The discharge positioning groove 99 is connected to the synchronous belt of the discharge synchronous belt drive assembly 98 by screws. After the collection rack 58 reaches the discharge position, the switching plate 94 is driven from the second position to the first position by the switching cylinder 93. The two sets of top cup synchronous belt drive assemblies 106 drive the two sets of top cup transport assemblies 100 to move, so that the two top cup plates 103 are pressed against the two ends of the stacked plastic cups. Then, the two sets of top cup synchronous belt drive assemblies 106 move to make the stacked plastic cups clamped and transported to the corresponding discharge positioning groove 99. This cycle repeats, and the stacked plastic cups in each accommodating cavity 59 are transported to the corresponding discharge positioning groove 99 in sequence. The plastic cups are stacked tightly and evenly, which is beneficial to the subsequent packaging process.

Claims

1. A stacking device for a cup-making machine, characterized in that: The system includes a frame (1), on which a transfer pre-stacking mechanism (2), a conveying mechanism (3), a feeding mechanism (4), a stacking feeding mechanism (96), and a discharging mechanism (97) are provided. The transfer pre-stacking mechanism (2) includes a pre-assembly frame (5), a circulating feeding assembly (6) disposed on the pre-assembly frame (5), and multiple pre-assembly plates (7) disposed on the circulating feeding assembly (6). The pre-assembly plates (7) are provided with multiple positioning ports (8) for positioning plastic cups. Driven by the circulating feeding assembly (6), there are a pre-loading position and a loading position. The conveying mechanism (3) is set above the transfer pre-stacking mechanism (2) to transport the plastic cups sequentially to the positioning port (8) of the pre-loading plate (7) located in the pre-loading position. The loading mechanism (4) is set below the loading position of the pre-loading plate (7) to push the plastic cups on the pre-loading plate (7) onto the stacking feeding mechanism (96). The stacking feeding mechanism (96) is used to transport the plastic cups to the discharge mechanism (97) for discharge.

2. The stacking device for the cup-making machine according to claim 1, characterized in that: The circulating feeding assembly (6) includes two chains (9), two sets of upper sprockets (10) rotatably disposed on the upper end of the pre-assembly frame (5), and two sets of lower sprockets (11) rotatably disposed on the lower end of the pre-assembly frame (5). The two sets of lower sprockets (11) are connected in linkage through a connecting shaft (12). One of the connecting shafts (12) is connected to a feeding motor (13). The chains (9) are meshed with the corresponding upper sprockets (10) and lower sprockets (11). The area between the two sets of upper sprockets (10) forms a transmission plane. The pre-assembly position and the feeding position are respectively set at the beginning and end of the transmission plane. The two sides of the pre-assembly plate (7) are respectively connected to the chain links of the corresponding chain (9) by fasteners. The pre-assembly frame (5) is also symmetrically provided with two transmission support plates (14). The part of the chain (9) between the two sets of upper sprockets (10) abuts against the upper surface of the corresponding transmission support plate (14).

3. The stacking device for the cup-making machine according to claim 2, characterized in that: The transit pre-stacking mechanism (2) further includes a front-mounted vibrating cup assembly (15) located below the pre-mounting position of the pre-mounting plate (7). The front-mounted vibrating cup assembly (15) includes a first bracket (16) mounted on the pre-mounting frame (5), a first movable plate (17) slidably mounted on the first bracket (16), a first support plate (18) mounted on the upper end of the first movable plate (17), a first vibration motor (55) mounted on the first support plate (18), and a first vibrating plate (19) mounted on the first vibration motor (55). A plurality of first springs (20) are sandwiched between the first vibrating plate (19) and the first support plate (18). Furthermore, the first vibrating plate (19) and the first support plate (18) are respectively provided with first positioning protrusions (21) for positioning the two ends of the first spring (20). The bottom of the first bracket (16) is provided with a first drive motor (22). The motor shaft of the first drive motor (22) is linked to a first synchronous pulley (23). The first bracket (16) is rotatably mounted with a second synchronous pulley (24) at a position above the first synchronous pulley (23) via a rotating shaft. The first synchronous pulley (23) and the second synchronous pulley (24) are covered with a first synchronous belt (25). The first movable plate (17) is fixedly connected to the vertical extension of the first synchronous belt (25). A first guide rail (26) is also vertically arranged on a bracket (16), and a first slider (27) that cooperates with the first guide rail (26) is provided on the first movable plate (17); the pre-assembly plate (7) also has a set position under the drive of the circulating feeding component (6), the set position is located between the pre-assembly position and the feeding position, and the transfer pre-stacking mechanism (2) also includes a set component (28) arranged below the set position of the pre-assembly plate (7), the set component (28) includes a second bracket (29) arranged on the pre-assembly frame (5), a set cylinder (30) arranged on the second bracket (29), and a set on the movable end of the set cylinder (30). The second support plate (31), the second vibration motor (32) mounted on the second support plate (31), and the second vibration plate (33) mounted on the second vibration motor (32) are provided. A plurality of second springs (34) are sandwiched between the second vibration plate (33) and the second support plate (31). The second vibration plate (33) and the second support plate (31) are respectively provided with second positioning protrusions (35) for positioning the two ends of the second springs (34). The bottom of the second support plate (31) is also provided with a plurality of guide rods (36) extending vertically. The second bracket (29) is provided with a plurality of linear bearings (37) that cooperate with the guide rods (36).

4. The stacking device for the cup-making machine according to claim 1, characterized in that: The conveying mechanism (3) includes a fixed bracket (38) disposed on the upper end of the frame (1), a movable transverse movable seat (39) disposed on the fixed bracket (38), a movable vertical movable seat (40) disposed on the transverse movable seat (39), a cantilever (41) mounted on the vertical movable seat (40), a suction cup mounting plate (42) disposed on the cantilever (41), and a plurality of vacuum suction cups (43) disposed on the suction cup mounting plate (42). The fixed bracket (38) is provided with a plurality of transverse guide rails (44), and the transverse movable seat (39) is provided with a plurality of transverse guide rails (44) that cooperate with the transverse guide rails (44). The slider (45) and the fixed bracket (38) are also equipped with a first synchronous belt drive assembly (46) connected to the transverse movable seat (39) for driving the transverse movable seat (39) to slide along the extension direction of the transverse guide rail (44). The transverse movable seat (39) is provided with a plurality of vertical guide rails (47). The vertical movable seat (40) is provided with a plurality of vertical sliders (48) that cooperate with the vertical guide rails (47). The transverse movable seat (39) is provided with a second synchronous belt drive assembly (49) connected to the vertical movable seat (40) for driving the vertical movable seat (40) to slide along the extension direction of the vertical guide rail (47).

5. The stacking device for the cup-making machine according to claim 1, characterized in that: The feeding mechanism (4) includes two sets of vertical synchronous belt drive assemblies (50). The movable ends of the two sets of vertical synchronous belt drive assemblies (50) are connected to lifting beams (51). The lifting beams (51) are connected to mounting base plates (52). The mounting base plates (52) are provided with multiple push rods (53) corresponding to the positioning holes (8) on the pre-installed plate (7). The upper end of the push rods (53) is provided with a push disk (54) for pushing the plastic cup out of the corresponding positioning hole (8) when moving upward.

6. The stacking device for the cup-making machine according to claim 5, characterized in that: The stacking feeding mechanism (96) includes a displacement seat (56) that can be movably arranged laterally on the frame (1), two support seats (57) that can be movably arranged vertically and synchronously on the displacement seat (56), and a collection rack (58) that can be rotatably arranged between the two support seats (57). The collection rack (58) has multiple accommodating cavities (59) for accommodating plastic cups through it. When the collection rack (58) rotates, it has a vertical state in which the extension direction of the accommodating cavity (59) is perpendicular to the horizontal plane, and a horizontal state in which the extension direction of the accommodating cavity (59) is parallel to the horizontal plane.

7. The stacking device for the cup-making machine according to claim 6, characterized in that: The frame (1) is provided with two parallel horizontal guide rails (60), and the displacement seat (56) is provided with two sets of horizontal sliders (61) that are respectively slidably engaged with the corresponding horizontal guide rails (60). The frame (1) is also provided with a horizontal synchronous belt (62) whose extension direction is parallel to the horizontal guide rails (60). A motor seat (63) is installed on the displacement seat (56), and a displacement motor (64) is installed on the motor seat (63). A crawling synchronous pulley (65) is linkedly installed on the motor shaft of the displacement motor (64). The crawling synchronous pulley (65) is connected to the horizontal synchronous belt (62). Engagement; the motor base (63) is connected by screws to a tension bearing (66) on each side of the crawling synchronous pulley (65). The tension bearing (66) abuts against the other side of the horizontal synchronous belt (62) corresponding to the crawling synchronous pulley (65), so that the horizontal synchronous belt (62) forms an inverted V-shaped transmission part (67) between the two tension bearings (66) that is tightly engaged with the crawling synchronous pulley (65); the displacement seat (56) is rotatably equipped with two parallel driving shafts (68) and driven shafts (69), and the extension directions of the driving shafts (68) and driven shafts (69) are both Perpendicular to the extension direction of the horizontal guide rail (60), a drive gear (70) is installed at each end of the drive shaft (68), and a driven gear (71) is installed at each end of the driven shaft (69). The drive gear (70) meshes with the corresponding driven gear (71). A horizontal motor (72) is also installed on the displacement seat (56). The motor shaft of the horizontal motor (72) is linked to one end of the drive shaft (68). Two vertically extending guide rails (73) are installed on the support seat (57). The displacement seat (56) is provided with a connection to the vertical guide rails (73). 73) A vertical slider (74) is matched with the vertical guide rail (73), and a rack (75) extending vertically is connected to the vertical guide rail (73). The racks (75) on the two vertical guide rails (73) mesh with the corresponding driving gear (70) and driven gear (71) respectively. The collection rack (58) is symmetrically provided with drive shafts (76) on both sides. The support base (57) is provided with a support bearing seat (77) that matches the corresponding drive shaft (76). A rotating motor (78) is installed on the side of one of the support bearing seats (77). The motor shaft of the rotating motor (78) is linked to the corresponding drive shaft (76).

8. The stacking device for the cup-making machine according to claim 6, characterized in that: The collection rack (58) includes a square frame body (79), with two support bases (57) respectively located on the left and right sides of the frame body (79). The frame body (79) contains multiple sets of guiding components. Each set of guiding components includes multiple guiding rods (80) distributed along a circular trajectory. The two ends of each guiding rod (80) are connected to the upper and lower ends of the frame body (79). The multiple guiding rods (80) of each set of guiding components enclose and form the receiving cavity (59). The upper and lower ends of the frame body (79) are respectively provided with an inlet / outlet (81) for plastic cups to enter and exit the receiving cavity (59). Each guiding rod (80) includes a rod core (82), a rod sleeve (83), and two anti-loosening telescopic blocks (8...). 4) The sleeve (83) is fixedly connected to the outer periphery of the core (82) by a pin. The core (82) has a through guide inner hole (85) on its side. The sleeve (83) has a guide outer hole (86) at each end of the guide hole. The width of the guide outer hole (86) is smaller than the width of the guide inner hole (85). Two anti-loosening telescopic blocks (84) are symmetrically arranged in the guide inner hole (85), and multiple telescopic springs (87) are arranged between the two anti-loosening telescopic blocks (84). The outer end of the anti-loosening telescopic block (84) is provided with a pressing part (88) that extends out of the guide outer hole (86). The telescopic direction of the anti-loosening telescopic block (84) is set towards the center of the accommodating cavity (59).

9. The stacking device for the cup-making machine according to claim 8, characterized in that: The bottom of the frame body (79) is connected to a baffle (89), and the baffle (89) has multiple front inlets (90) corresponding to the inlets and outlets (81). A switching channel (91) is provided between the frame body (79) and the baffle (89). The bottom of the frame body (79) is also provided with a small bracket (92), and a switching cylinder (93) is installed on the small bracket (92). The movable end of the switching cylinder (93) is connected to a switching plate (94). 94) The switching plate (94) is set in the switching channel (91). The switching plate (94) is provided with a plurality of openings (95) corresponding to the inlet and outlet (81). When the switching cylinder (93) drives the switching plate (94) to move, the switching plate (94) has a first position in which the opening (95) is completely connected to the corresponding inlet and outlet (81), and a second position in which the opening (95) is staggered from the corresponding inlet and outlet (81) so that the switching plate (94) partially or completely blocks the inlet and outlet (81).

10. The stacking device for the cup-making machine according to claim 9, characterized in that: The discharge mechanism (97) includes a discharge synchronous belt drive assembly (98), discharge positioning grooves (99) evenly distributed along the transmission direction of the discharge synchronous belt drive assembly (98), and two sets of top cup conveying assemblies (100) symmetrically arranged on both sides of the discharge synchronous belt drive assembly (98). The top cup conveying assembly (100) includes a top cup holder (101), a top cup seat (102) movably arranged on the top cup holder (101), and a top cup plate (103) arranged on the top cup seat (102). The top cup holder (101) is provided with a plurality of top cup guide rails (104) extending perpendicular to the transmission direction of the discharge synchronous belt drive assembly (98). The bottom of the top cup seat (102) is provided with a plurality of top cup guide rails (104) that are connected to the top cup. The cup guide rail (104) forms a sliding fit top cup slider (105). The top cup holder (101) is also provided with a top cup synchronous belt drive assembly (106) connected to the top cup seat (102) for driving the top cup seat (102) to move along the direction of the top cup guide rail (104). The upper and lower ends of the frame body (79) are provided with multiple first elongated holes (107) for the insertion of the top cup plate (103). The first elongated holes (107) connect multiple inlets and outlets (81) in the same row. The baffle (89) is provided with multiple second elongated holes (108) for the insertion of the corresponding top cup plate (103). The second elongated holes (108) connect multiple front inlets (90) in the same row.

Images