Plastic injection molding machine with material collection structure

By introducing a material receiving and reset mechanism and a buffer mechanism into the plastic injection molding machine, the problems of low material output efficiency and easy product damage in traditional plastic injection molding machines are solved, achieving the effects of automation, neat material output and product protection.

CN224360555UActive Publication Date: 2026-06-16LANGFANG YUNFEI NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANGFANG YUNFEI NEW MATERIAL CO LTD
Filing Date
2025-03-26
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional plastic injection molding machines require manual collection during the discharge process, which leads to low efficiency, easy discharge blockage, and easy product damage.

Method used

Design a plastic injection molding machine with a material receiving structure, including a material receiving and reset mechanism and a buffer mechanism. The product is pushed by a cam driven by a motor and a rotating cam, and the impact force is reduced by the buffer pad, so as to realize the automated and neat delivery of the product.

🎯Benefits of technology

It enables automated and neat product discharge, avoids discharge blockage, improves production efficiency, protects products, and reduces human intervention and damage risks.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224360555U_ABST
    Figure CN224360555U_ABST
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Abstract

The utility model relates to the technical field of plastic injection molding machine, and disclose a plastic injection molding machine with material collecting structure, including molding machine main part, the molding machine main part top is provided with extrusion device, the left side of extrusion device is provided with lower mould, the left side inner wall of molding machine main part is fixedly connected with the cylinder, the cylinder output is fixedly connected with upper mould, through setting the material receiving reset mechanism, starting motor, make it push the recessed plate and top product contact, make its product lift, at the same time, because the roller is always in contact with the rotary tray, and then push its product to the storage recessed frame adjacent front side recessed surface place, to this cycle, week and repeat, make it can continuously even neatly convey product out of the molding machine main part inside, avoid because artificial not in time handles product and makes it to accumulate in the molding machine bottom, and then avoid causing the discharge blockage, make it even neatly convey product out of the molding machine main part inside, improve production efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of plastic injection molding machines, specifically a plastic injection molding machine with a material receiving structure. Background Technology

[0002] Traditional plastic injection molding machines typically require manual material handling and sorting after the injection molding process, which is not only inefficient but also increases labor costs. Therefore, the market urgently needs a plastic injection molding machine capable of automating material handling and sorting. Secondly, with technological advancements, automation and intelligent technologies have been widely applied to various production equipment. These technologies not only improve production efficiency but also reduce errors and safety issues caused by human factors. Therefore, introducing automation and intelligent technologies into plastic injection molding machines has become a trend.

[0003] In existing technology, after the plastic product has fully solidified, the mold closing device (or mold locking system) opens the mold, and then the ejector pins, ejector plates and other components with demolding function push the plastic product out of the mold cavity, so that the product falls directly to the bottom of the molding machine by gravity. However, in actual use, during the material collection and discharge process, because the product falls directly to the bottom of the device by gravity when the mold is opened, it needs to be manually collected repeatedly. Therefore, if the product is not handled in time during long-term operation, it is easy for the product to accumulate at the bottom of the molding machine, which will cause material discharge blockage, uneven product output, and reduced production efficiency. Therefore, it is necessary to improve the plastic injection molding machine with a material collection structure. Utility Model Content

[0004] The purpose of this invention is to provide a plastic injection molding machine with a material receiving structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plastic injection molding machine with a material receiving structure, comprising a molding machine body, an extrusion device provided on the top of the molding machine body, a lower mold provided on the left side of the extrusion device, a cylinder fixedly connected to the inner wall of the left side of the molding machine body, an upper mold fixedly connected to the output end of the cylinder, a buffer mechanism provided at the bottom of the molding machine body, and a material receiving and resetting mechanism provided on the front of the molding machine body;

[0006] The material receiving and resetting mechanism includes a material receiving and pushing component and a resetting component, wherein the resetting component is disposed outside the material receiving and pushing component;

[0007] The material receiving and pushing assembly includes a fixed frame, which is fixedly connected to the front of the molding machine body. A motor is fixedly connected to the front of the fixed frame, and a cam is fixedly connected to the outside of the motor output end. A rotating cam is fixedly connected to the output end of the motor. A storage recess is fixedly connected to the front of the molding machine body, and a protective frame is fixedly connected to the front of the molding machine body. A top plate abuts against the top of the cam, and a pushing recess is fixedly connected to the top of the top plate to facilitate even material collection and neatly convey the product out of the molding machine body.

[0008] Preferably, the fixing frame has a hole at the position corresponding to the motor output end, and the motor output end is rotatably connected in the hole to facilitate the rotation of the rotating cam.

[0009] Preferably, the reset assembly includes a connecting frame, which is fixedly connected to the front of the molding machine body. A sliding column is slidably connected inside the connecting frame. A connecting sleeve is fixedly connected to the back of the sliding column. A top rod is fixedly connected to the back of the connecting sleeve. A roller is rotatably connected to the back of the top rod. A spring is fixedly connected between the sliding column and the connecting frame to facilitate forcing the upper end of the top plate to push the concave plate to reset.

[0010] Preferably, the connecting sleeve has a hole at the corresponding position of the top plate, and the top plate is slidably connected in the hole, which facilitates pulling the top plate to move back and forth.

[0011] Preferably, the back of the roller abuts against the front of the rotating cam, and the connecting frame has a hole at the corresponding position of the sliding column, and the sliding column is slidably connected in the hole to facilitate adjustment of the roller position.

[0012] Preferably, the buffer mechanism includes a fixed base, which is fixedly connected to the bottom of the molding machine body. A guide column is slidably connected inside the fixed base. A pressure plate is fixedly connected to the top of the guide column. A buffer pad is fixedly connected to the top of the pressure plate. A spring is fixedly connected between the pressure plate and the fixed base to facilitate buffering and protecting the product.

[0013] Preferably, the fixing seat has a groove at the position corresponding to the pressure plate, and the pressure plate is slidably connected in the groove, so as to push the pressure plate to move when the product moves downward.

[0014] Compared with the prior art, this utility model provides a plastic injection molding machine with a material collection structure, which has the following beneficial effects:

[0015] 1. This plastic injection molding machine with a material receiving structure, through a set material receiving and reset mechanism, starts the motor, causing it to push the concave plate to contact the top product, lifting the product. At the same time, because the rollers are always in contact with the rotating tray, the product is pushed to the concave surface of the adjacent front side of the storage rack. This cycle repeats continuously, enabling the machine to continuously and evenly convey the product out of the main body of the molding machine. This avoids the accumulation of products at the bottom of the molding machine due to untimely manual handling, thus preventing material blockage and ensuring that the product is conveyed out of the main body of the molding machine evenly and neatly, thereby improving production efficiency.

[0016] 2. This plastic injection molding machine with a material receiving structure, through the set buffer mechanism, when the product falls onto the buffer pad, it pushes the pressure plate along the guide column under the action of gravity, and is then compressed by the spring, which further reduces the impact force on the product during the falling process, thereby further protecting the product and avoiding damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the material receiving and resetting mechanism of this utility model on the left side;

[0020] Figure 3 This is a schematic diagram of the unfolded structure of the material receiving and pushing component of this utility model;

[0021] Figure 4 This is a schematic diagram of the unfolded structure of the reset component of this utility model on the left side;

[0022] Figure 5 This is a schematic diagram of the unfolded structure of the buffer mechanism of this utility model.

[0023] In the diagram: 1. Molding machine body; 2. Extrusion device; 3. Lower mold; 4. Cylinder; 5. Upper mold; 6. Material receiving and resetting mechanism; 7. Buffer mechanism; 61. Material receiving and pushing assembly; 62. Resetting assembly; 611. Fixing frame; 612. Motor; 613. Cam; 614. Rotating cam; 615. Top plate; 616. Pushing concave plate; 617. Storage concave frame; 618. Protective frame; 621. Connecting frame; 622. Spring 1; 623. Sliding column; 624. Connecting sleeve; 625. Push rod; 626. Roller; 71. Fixing seat; 72. Guide column; 73. Pressure plate; 74. Buffer pad; 75. Spring 2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1:

[0027] Please see Figure 1-5 This utility model provides a technical solution: a plastic injection molding machine with a material receiving structure, including a molding machine body 1, an extrusion device 2 is provided on the top of the molding machine body 1, a lower mold 3 is provided on the left side of the extrusion device 2, a cylinder 4 is fixedly connected to the inner wall of the left side of the molding machine body 1, an upper mold 5 is fixedly connected to the output end of the cylinder 4, a buffer mechanism 7 is provided at the bottom of the molding machine body 1, and a material receiving and reset mechanism 6 is provided on the front of the molding machine body 1.

[0028] The receiving and resetting mechanism 6 includes a receiving and pushing component 61 and a resetting component 62, with the resetting component 62 disposed outside the receiving and pushing component 61;

[0029] The material receiving and pushing component 61 includes a fixed frame 611, which is fixedly connected to the front of the molding machine body 1. A motor 612 is fixedly connected to the front of the fixed frame 611. A cam 613 is fixedly connected to the outside of the output end of the motor 612. A rotating cam 614 is fixedly connected to the output end of the motor 612. A storage recess 617 is fixedly connected to the front of the molding machine body 1. A protective frame 618 is fixedly connected to the front of the molding machine body 1. A top plate 615 abuts against the top of the cam 613. A pushing recess 616 is fixedly connected to the top of the top plate 615 to facilitate even material collection and to neatly convey the product out of the molding machine body 1.

[0030] Furthermore, the fixing bracket 611 has a hole at the corresponding position of the output end of the motor 612, and the output end of the motor 612 is rotatably connected in the hole, which facilitates driving the rotating cam 614 to rotate.

[0031] Furthermore, the reset assembly 62 includes a connecting frame 621, which is fixedly connected to the front of the molding machine body 1. A sliding column 623 is slidably connected inside the connecting frame 621. A connecting sleeve 624 is fixedly connected to the back of the sliding column 623. A top rod 625 is fixedly connected to the back of the connecting sleeve 624. A roller 626 is rotatably connected to the back of the top rod 625. A spring 622 is fixedly connected between the sliding column 623 and the connecting frame 621 to facilitate forcing the upper end of the top plate 615 to push the concave plate 616 to reset.

[0032] Furthermore, the connecting sleeve 624 has a hole at the corresponding position of the top plate 615, and the top plate 615 is slidably connected in the hole, which facilitates the pulling of the top plate 615 back and forth.

[0033] Furthermore, the back of the roller 626 abuts against the front of the rotating cam 614, and holes are provided at the corresponding positions of the connecting bracket 621 and the sliding column 623, and the sliding column 623 is slidably connected in the holes to facilitate the adjustment of the position of the roller 626.

[0034] Example 2:

[0035] Please see Figure 5 Furthermore, in conjunction with Embodiment 1, the buffer mechanism 7 includes a fixed seat 71, which is fixedly connected to the bottom of the molding machine body 1. A guide post 72 is slidably connected inside the fixed seat 71. A pressure plate 73 is fixedly connected to the top of the guide post 72. A buffer pad 74 is fixedly connected to the top of the pressure plate 73. A spring 75 is fixedly connected between the pressure plate 73 and the fixed seat 71 to facilitate buffering and protecting the product.

[0036] Furthermore, a groove is provided at the corresponding position of the fixed base 71 and the pressure plate 73, and the pressure plate 73 is slidably connected in the groove, so as to push the pressure plate 73 to move when the product moves downward.

[0037] In actual operation, when the device is in use, firstly, when the device starts working, the molten raw material is conveyed to the lower mold 3 and the upper mold 5 through the extrusion device 2. After molding is completed, the cylinder 4 is activated, which drives the upper mold 5 to completely detach from the lower mold 3, thereby completely ejecting the molded product from the mold. When falling, the buffer mechanism 7 is set, and when the product falls onto the buffer pad 74, it pushes the pressure plate 73 along the guide column 72 under the action of gravity, and is then compressed by the second spring 75, which further reduces the impact force of the product during the falling process. At the same time, the second spring 75 resets, causing the product to roll into the storage recess 617. Then, the receiving and resetting mechanism 6 is set, and the motor 612 is activated, which drives the cam 613 and the rotating cam 614 to rotate. At this time, the cam 613 contacts the top plate 615 during rotation, thereby pushing the top plate 615. The upward movement of the roller 626 simultaneously drives the push plate 616 upward, bringing it into contact with the top product and lifting it up. Meanwhile, since the roller 626 is always in contact with the rotating cam 614, the convex surface of the rotating cam 614 contacts the roller 626 during the rotation of the rotating tray. This simultaneously pushes the push rod 625 forward, causing the push rod 625 to move the connecting sleeve 624 forward. As the connecting sleeve 624 moves forward, it simultaneously drives the push plate 616 forward, pushing the product forward and placing it on the adjacent front concave surface of the storage rack 617. After the rotating cam 614 and cam 613 rotate one revolution, the push plate 616 returns to its original position. Under the elastic force of spring 622, the roller 626 remains in contact with the rotating cam 614. This cycle repeats continuously, ensuring that the product is consistently and neatly conveyed out of the forming machine body 1.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A plastic injection molding machine with a material receiving structure, comprising a molding machine body (1), characterized in that: The molding machine body (1) is provided with an extrusion device (2) at the top, and a lower mold (3) is provided on the left side of the extrusion device (2). A cylinder (4) is fixedly connected to the inner wall of the left side of the molding machine body (1). An upper mold (5) is fixedly connected to the output end of the cylinder (4). A buffer mechanism (7) is provided at the bottom of the molding machine body (1). A material receiving and reset mechanism (6) is provided on the front of the molding machine body (1). The receiving and resetting mechanism (6) includes a receiving and pushing component (61) and a resetting component (62), wherein the resetting component (62) is disposed outside the receiving and pushing component (61); The receiving and pushing component (61) includes a fixing frame (611), which is fixedly connected to the front of the molding machine body (1). A motor (612) is fixedly connected to the front of the fixing frame (611). A cam (613) is fixedly connected to the outside of the output end of the motor (612). A rotating cam (614) is fixedly connected to the output end of the motor (612). A storage recess (617) is fixedly connected to the front of the molding machine body (1). A protective frame (618) is fixedly connected to the front of the molding machine body (1). A top plate (615) abuts against the top of the cam (613). A pushing recess (616) is fixedly connected to the top of the top plate (615).

2. A plastic injection molding machine with a material receiving structure according to claim 1, characterized in that: The fixing frame (611) has a hole at the corresponding position of the output end of the motor (612), and the output end of the motor (612) is rotatably connected in the hole.

3. A plastic injection molding machine with a material receiving structure according to claim 1, characterized in that: The reset assembly (62) includes a connecting frame (621), which is fixedly connected to the front of the molding machine body (1). A sliding column (623) is slidably connected inside the connecting frame (621). A connecting sleeve (624) is fixedly connected to the back of the sliding column (623). A top rod (625) is fixedly connected to the back of the connecting sleeve (624). A roller (626) is rotatably connected to the back of the top rod (625). A spring (622) is fixedly connected between the sliding column (623) and the connecting frame (621).

4. A plastic injection molding machine with a material receiving structure according to claim 3, characterized in that: The connecting sleeve (624) has a hole at the corresponding position of the top plate (615), and the top plate (615) is slidably connected in the hole.

5. A plastic injection molding machine with a material receiving structure according to claim 3, characterized in that: The back of the roller (626) abuts against the front of the rotating cam (614), and the connecting frame (621) and the sliding column (623) are provided with holes at corresponding positions, and the sliding column (623) is slidably connected in the holes.

6. A plastic injection molding machine with a material receiving structure according to claim 1, characterized in that: The buffer mechanism (7) includes a fixed seat (71), which is fixedly connected to the bottom of the molding machine body (1). A guide column (72) is slidably connected inside the fixed seat (71). A pressure plate (73) is fixedly connected to the top of the guide column (72). A buffer pad (74) is fixedly connected to the top of the pressure plate (73). A spring (75) is fixedly connected between the pressure plate (73) and the fixed seat (71).

7. A plastic injection molding machine with a material receiving structure according to claim 6, characterized in that: The fixed base (71) has a groove at the corresponding position of the pressure plate (73), and the pressure plate (73) is slidably connected in the groove.