Injection molding machine for plastic cup production

Abstract

The utility model discloses an injection molding machine for plastic cup production, which comprises a working table, the top of the working table is fixedly connected with a lower module, an injection molding mechanism is arranged at the top of the working table, an ejection mechanism is arranged in the working table, a discharging mechanism is arranged in the working table, and the discharging mechanism comprises a discharging component, a feeding component and a discharging component, comprising a rotating plate rotationally installed in a workbench, one end of the rotating plate is rotationally connected with a rotating rod, the other end of the rotating plate is rotationally connected with a connecting rod, and one end of the connecting rod is rotationally connected with a moving plate. According to the injection molding machine for plastic cup production, by arranging the discharging mechanism, the moving plate slides forwards at the top of the limiting plate, so that the discharging plate is driven to slide synchronously, the ejected plastic cups are pushed out through the discharging plate, and therefore rapid discharging operation of the plastic cups is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic cup production, in particular to an injection molding machine for plastic cup production. Background Technique

[0002] Refer to the patent name: A new type of injection molding machine for convenient plastic cup production (Patent Publication No.: CN218593605U, Patent Publication Date: March 10, 2023). It includes an injection molding machine housing, a mounting plate is fixed at the top of the injection molding machine housing, a first drive box is fixed at the top of the mounting plate, two first threaded sleeves are rotatably mounted at the bottom of the mounting plate, the first threaded sleeves are rotated, a one-way threaded rod is rotatably mounted in the first threaded sleeves, the bottom end of the one-way threaded rod extends to the outside of the first threaded sleeves, and an upper mold is fixed between the bottom ends of the two one-way threaded rods. The structure of this device is ingenious and easy to use. By driving the lower mold to rotate 180 degrees by the second drive box, the plastic product can be poured down from the top of the lower mold, the separation is simple and convenient, and the processing efficiency is high. Through the blower, air can be introduced into the injection molding machine housing to accelerate the cooling of the injection molded parts, so that the injection molded parts can be cooled and formed faster, improving the processing speed.

[0003] Based on the above document: Existing plastic cups are usually produced by injection molding machines. After the plastic cups are produced in the injection molding groove, a top-out structure is usually used to push out the finished plastic cups in the injection molding groove, and then the pushed-out plastic cups are collected centrally by manual labor. Although this operation makes it more convenient to take out the plastic cups, however, after the plastic cups are pushed out, they still need to be collected manually, and the process is relatively cumbersome, which is likely to affect the work efficiency. Therefore, the utility model provides an injection molding machine for plastic cup production. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an injection molding machine for plastic cup production, which solves the problem that the process of pushing out and taking out the finished plastic cups by the existing injection molding machine for plastic cup production is relatively cumbersome and is likely to affect the work efficiency.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: An injection molding machine for plastic cup production, including a workbench, a lower module is fixedly connected to the top of the workbench, an injection molding mechanism is arranged on the top of the workbench, a top-out mechanism is arranged inside the workbench, and a discharging mechanism is arranged inside the workbench. The discharging mechanism includes:

[0006] A discharging assembly, including a rotating plate rotatably mounted inside the workbench, one end of the rotating plate is rotatably connected to a rotating rod, the other end of the rotating plate is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to a moving plate, and a discharging plate is fixedly connected to one end of the moving plate;

[0007] The driving component is arranged at the top inside the workbench cavity.

[0008] Preferably, the driving component includes a driving motor installed at the top inside the workbench cavity. One end of the output shaft of the driving motor is fixedly connected with a driving rod through a coupling, and one end of the driving rod is rotatably connected with one end of a rotating plate.

[0009] Preferably, a limiting plate is fixedly connected to the top of the workbench and located at the rear side of the lower module. The top of the limiting plate is slidably connected with the bottom of the moving plate.

[0010] Preferably, the ejecting mechanism includes an ejecting motor installed at the top inside the workbench cavity. One end of the output shaft of the ejecting motor is fixedly connected with a rotating disc through a coupling. A rotating block is fixedly connected to the surface of the rotating disc, and the surface of the rotating disc enables an ejecting block to slide inside the lower module through a transmission component.

[0011] Preferably, the transmission component includes an ejecting rod slidably installed on the top of the workbench. The top end of the ejecting rod is fixedly connected with the bottom of the ejecting block, and the bottom end of the ejecting rod is fixedly connected with a transmission plate. An arc-shaped groove is formed on the surface of the transmission plate, and the inner surface of the arc-shaped groove is slidably connected with the surface of the rotating block.

[0012] Preferably, the injection molding mechanism includes a support plate and an extruder installed on the top of the workbench. A hydraulic cylinder is fixedly connected to the top of the support plate. The bottom end of the hydraulic cylinder is fixedly connected with an upper module through a piston rod. The left side of the extruder is fixedly communicated with the surface of the lower module through an injection pipe.

[0013] Beneficial effects

[0014] The utility model provides an injection molding machine for producing plastic cups. Compared with the prior art, the following

[0015] beneficial effects are achieved:

[0016] (1). For the injection molding machine for producing plastic cups, by starting the driving motor to drive the driving rod to rotate, one end of the rotating rod rotates at one end of the driving rod, and the other end of the rotating rod rotates at one end of the rotating plate. Furthermore, the rotating plate rotates at the top inside the workbench cavity, so that one end of the connecting rod rotates at the other end of the rotating plate, and the other end of the connecting rod rotates at one side of the moving plate, enabling the moving plate to slide on the top of the limiting plate. The sliding of the moving plate drives the discharge plate to slide synchronously. By providing a discharge mechanism, the moving plate slides forward on the top of the limiting plate, thereby driving the discharge plate to slide synchronously, and the discharged plastic cup is pushed out through the discharge plate, thus realizing the rapid discharging operation of the plastic cup.

[0017] (2) The injection molding machine for producing plastic cups drives the rotating disk and the rotating block to rotate synchronously through the ejector motor, so that the rotating block slides on the inner surface of the arc-shaped groove, thereby driving the ejector rod and the ejector block to slide upward synchronously. The plastic cup formed by injection molding is ejected through the ejector block. When the ejector block, the ejector rod and the transmission plate are at the highest position, at this time, the rotating block continues to rotate on the inner surface of the arc-shaped groove, while the heights of the ejector block, the ejector rod and the transmission plate will not change, so as to maintain a short period of rest. By setting an ejector mechanism, the ejector rod and the ejector block perform reciprocating intermittent motion, so that after the ejector rod and the ejector block eject the formed plastic cup out of the injection molding groove, they maintain a short period of rest, so as to facilitate the subsequent discharging operation of the discharging plate and improve work efficiency. Description of the Drawings

[0018] Figure 1 is a three-dimensional external structure diagram of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the workbench of the present utility model;

[0020] Figure 3 is a three-dimensional structure diagram of the discharging assembly of the present utility model;

[0021] Figure 4 is a three-dimensional structure diagram of the ejector mechanism of the present utility model.

[0022] In the figure: 1 - workbench, 2 - lower module, 3 - injection molding mechanism, 31 - support plate, 32 - extruder, 33 - hydraulic cylinder, 34 - upper module, 35 - injection molding pipe, 4 - ejector mechanism, 41 - ejector motor, 42 - rotating disk, 43 - rotating block, 44 - ejector block, 5 - discharging mechanism, 51 - discharging assembly, 511 - rotating plate, 512 - rotating rod, 513 - connecting rod, 514 - moving plate, 515 - discharging plate, 52 - driving assembly, 521 - driving motor, 522 - driving rod, 6 - limiting plate, 7 - transmission assembly, 71 - ejector rod, 72 - transmission plate, 73 - arc-shaped groove. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides two technical solutions:

[0025] Embodiment 1

[0026] An injection molding machine for producing plastic cups, comprising a workbench 1. A lower module 2 is fixedly connected to the top of the workbench 1. An injection mechanism 3 is provided on the top of the workbench 1. An ejection mechanism 4 is provided inside the workbench 1. An unloading mechanism 5 is provided inside the workbench 1. The unloading mechanism 5 includes:

[0027] An unloading component 51, including a rotating plate 511 rotatably installed inside the workbench 1. A notch for the rotating plate 511 to rotate is opened on the top of the workbench 1. One end of the rotating plate 511 is rotatably connected to a rotating rod 512. The other end of the rotating plate 511 is rotatably connected to a connecting rod 513. One end of the connecting rod 513 is rotatably connected to a moving plate 514. One end of the moving plate 514 is fixedly connected to an unloading plate 515;

[0028] A driving component 52 is arranged at the top of the inner cavity of the workbench 1. The driving component 52 includes a driving motor 521 installed at the top of the inner cavity of the workbench 1. The driving motor 521 is a three-phase asynchronous motor and is connected to an external circuit through an electric wire. One end of the output shaft of the driving motor 521 is fixedly connected to a driving rod 522 through a coupling. One end of the driving rod 522 is rotatably connected to one end of the rotating plate 511. A limiting plate 6 is fixedly connected to the top of the workbench 1 and located at the rear side of the lower module 2. A limiting groove is opened on the top of the limiting plate 6. A moving block is installed at the bottom of the moving plate 514. The moving block slides on the inner surface of the limiting groove. The top of the limiting plate 6 is slidably connected to the bottom of the moving plate 514. By starting the driving motor 521 to drive the driving rod 522 to rotate, one end of the rotating rod 512 rotates at one end of the driving rod 522, and the other end of the rotating rod 512 rotates at one end of the rotating plate 511, so that the rotating plate 511 rotates at the top of the inner cavity of the workbench 1, thereby making one end of the connecting rod 513 rotate at the other end of the rotating plate 511, and the other end of the connecting rod 513 rotates on one side of the moving plate 514, causing the moving plate 514 to slide on the top of the limiting plate 6. The sliding of the moving plate 514 drives the unloading plate 515 to slide synchronously. By providing the unloading mechanism 5, the moving plate 514 slides forward on the top of the limiting plate 6, thereby driving the unloading plate 515 to slide synchronously, and the ejected plastic cup is pushed out through the unloading plate 515, so as to realize the rapid unloading operation of the plastic cup.

[0029] Embodiment 2

[0030] The main difference from Embodiment 1 is:

[0031] An injection molding machine for producing plastic cups. In the ejection mechanism 4, there is an ejection motor 41 installed at the top of the inner cavity of the workbench 1. The ejection motor 41 is a three-phase asynchronous motor and is connected to the external circuit through wires. One end of the output shaft of the ejection motor 41 is fixedly connected with a rotating disk 42 through a coupling. The surface of the rotating disk 42 is fixedly connected with a rotating block 43. The surface of the rotating disk 42 makes the ejection block 44 slide inside the lower mold 2 through a transmission assembly 7. The transmission assembly 7 includes an ejection rod 71 slidably installed on the top of the workbench 1. The ejection rod 71 slides inside the lower mold 2. The top end of the ejection rod 71 is fixedly connected to the bottom of the ejection block 44. The bottom end of the ejection rod 71 is fixedly connected with a transmission plate 72. An arc-shaped groove 73 is formed on the surface of the transmission plate 72. The inner surface of the arc-shaped groove 73 is slidably connected with the surface of the rotating block 43. The injection mechanism 3 includes a support plate 31 and an extruder 32 installed on the top of the workbench 1. The extruder 32 is a prior art and is connected to a storage tank inside the workbench 1 through a connecting pipe on its right side. The top of the support plate 31 is fixedly connected with a hydraulic cylinder 33. The hydraulic cylinder 33 is connected to an external air source through an air pipe. The bottom end of the hydraulic cylinder 33 is fixedly connected with an upper mold 34 through a piston rod. The piston rod slides inside the support plate 31. The left side of the extruder 32 is fixedly connected and communicated with the surface of the lower mold 2 through an injection pipe 35. By driving the rotating disk 42 and the rotating block 43 to rotate synchronously through the ejection motor 41, the rotating block 43 slides on the inner surface of the arc-shaped groove 73, thereby driving the ejection rod 71 and the ejection block 44 to slide upward synchronously. The injection-molded plastic cup is ejected by the ejection block 44. When the ejection block 44, the ejection rod 71, and the transmission plate 72 are at the highest position, at this time, the rotating block 43 continues to rotate on the inner surface of the arc-shaped groove 73, while the heights of the ejection block 44, the ejection rod 71, and the transmission plate 72 do not change, so as to maintain a short period of stillness. By providing the ejection mechanism 4, the ejection rod 71 and the ejection block 44 perform reciprocating intermittent motion, so that after the ejection rod 71 and the ejection block 44 eject the formed plastic cup out of the injection groove, they maintain a short period of stillness, which is convenient for the subsequent discharging operation of the discharging plate 515 and improves work efficiency. At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] During operation, first, the extruder 32 is started to extract the material in the storage tank inside the workbench 1, and it is introduced into the injection molding groove at the top of the lower module 2 through the injection molding pipe 35. Subsequently, the piston rod and the upper module 34 are driven to slide downward synchronously by the driving hydraulic cylinder 33, so that the upper module 34 and the lower module 2 are fitted together. When the plastic cup injection molding is completed, the ejector motor 41 is started to drive the rotating disk 42 and the rotating block 43 to rotate synchronously, so that the rotating block 43 slides on the inner surface of the arc-shaped groove 73, thereby driving the ejector rod 71 and the ejector block 44 to slide upward synchronously. The injection-molded plastic cup is ejected by the ejector block 44. When the ejector block 44, the ejector rod 71, and the transmission plate 72 are at the highest position, at this time, the rotating block 43 continues to rotate on the inner surface of the arc-shaped groove 73, while the heights of the ejector block 44, the ejector rod 71, and the transmission plate 72 do not change, so as to maintain a short-term static state. At this time, the driving motor 521 is started to drive the driving rod 522 to rotate, so that one end of the rotating rod 512 rotates at one end of the driving rod 522, and the other end of the rotating rod 512 rotates at one end of the rotating plate 511, thereby causing the rotating plate 511 to rotate on the top of the inner cavity of the workbench 1, so that one end of the connecting rod 513 rotates at the other end of the rotating plate 511, and the other end of the connecting rod 513 rotates on one side of the moving plate 514, causing the moving plate 514 to slide on the top of the limiting plate 6. The sliding of the moving plate 514 drives the discharge plate 515 to slide synchronously, and the ejected plastic cup is pushed out through the discharge plate 515 to realize the discharging operation of the plastic cup.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine for producing plastic cups, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a lower module (2), the top of the workbench (1) is provided with an injection molding mechanism (3), the interior of the workbench (1) is provided with an ejection mechanism (4), the interior of the workbench (1) is provided with a discharge mechanism (5), and the discharge mechanism (5) comprises: The discharge assembly (51) comprises a rotating plate (511) rotatably mounted inside the workbench (1), one end of the rotating plate (511) being rotatably connected to a rotating rod (512), the other end of the rotating plate (511) being rotatably connected to a connecting rod (513), one end of the connecting rod (513) being rotatably connected to a moving plate (514), and one end of the moving plate (514) being fixedly connected to a discharge plate (515); A driving assembly (52) is arranged on the top of the inner cavity of the workbench (1).

2. The injection molding machine for producing plastic cups according to claim 1, characterized in that: The driving assembly (52) comprises a driving motor (521) mounted on the top of the inner cavity of the workbench (1); one end of the output shaft of the driving motor (521) is fixedly connected to a driving rod (522) via a coupling; one end of the driving rod (522) is rotatably connected to one end of the rotating plate (511).

3. The injection molding machine for producing plastic cups according to claim 1, characterized in that: A limiting plate (6) is fixedly connected to the top of the workbench (1) and located at the rear side of the lower module (2), and the top of the limiting plate (6) is slidably connected to the bottom of the movable plate (514).

4. The injection molding machine for producing plastic cups according to claim 1, characterized in that: The ejection mechanism (4) comprises an ejection motor (41) mounted on the top of the inner cavity of the workbench (1); one end of the output shaft of the ejection motor (41) is fixedly connected to a rotating disk (42) via a coupling; a rotating block (43) is fixedly connected to the surface of the rotating disk (42); the surface of the rotating disk (42) enables the ejection block (44) to slide inside the lower module (2) via a transmission assembly (7).

5. The injection molding machine for producing plastic cups according to claim 4, characterized in that: The transmission assembly (7) comprises an ejector rod (71) slidably mounted on the top of the workbench (1); the top end of the ejector rod (71) is fixedly connected to the bottom of the ejector block (44); the bottom end of the ejector rod (71) is fixedly connected to a transmission plate (72); an arc groove (73) is formed on the surface of the transmission plate (72); the inner surface of the arc groove (73) is slidably connected to the surface of the rotating block (43).

6. The injection molding machine for producing plastic cups according to claim 1, characterized in that: The injection molding mechanism (3) comprises a support plate (31) and an extruder (32) mounted on the top of a workbench (1); the top of the support plate (31) is fixedly connected to a hydraulic cylinder (33); the bottom end of the hydraulic cylinder (33) is fixedly connected to an upper module (34) via a piston rod; the left side of the extruder (32) is fixedly connected to the surface of a lower module (2) via an injection molding tube (35).

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