Injection molding machine with spiral conveying structure

Abstract

The utility model relates to the technical field of plastic part production technology, in particular to an injection molding machine with a spiral conveying structure, which comprises a control cabinet, a fixing plate is mounted above the control cabinet through screws, and a fixing groove is arranged above the fixing plate; a connecting plate is mounted above the fixing plate through screws, a shell of a second air cylinder is mounted in the connecting plate through screws, a cover plate is mounted on an output shaft on one side of the second air cylinder through bolts, and a third air cylinder is mounted on one side of the cover plate through an air cylinder supporting seat; according to the improved injection molding machine, a rotating vane structure is arranged at the feeding port, so that raw materials can enter a charging barrel of the injection molding machine more uniformly, the situation that local feeding is too much or too little is avoided, accumulation and blockage of the raw materials at the feeding port are reduced, and the service life of the injection molding machine is prolonged. The feed port is provided with a conveying pipeline to quickly convey raw materials, and the discharge port is provided with an ejector pin and a push plate to quickly discharge materials.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic part production technology, in particular to an injection molding machine with a spiral conveying structure. Background Technique

[0002] The production of plastic parts is a complex but highly precise manufacturing process. According to factors such as the performance requirements, usage environment, and cost of the parts, appropriate plastic raw materials are selected, such as polyethylene, polypropylene, polystyrene, polycarbonate, etc. According to the shape, size, and structural characteristics of the plastic parts, high-precision molds are designed and manufactured. The quality and precision of the molds directly affect the molding quality and dimensional accuracy of the parts.

[0003] An injection molding machine is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding molds. An injection molding machine usually consists of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a lubrication system, a heating and cooling system, a safety monitoring system, etc.

[0004] The inventor found the following problems in the prior art during the implementation of the present utility model: 1. When feeding, a large amount of raw materials are poured in, and there is no component to prevent blockage, which will cause too much raw materials to be poured in and result in raw material blockage; 2. The injection molding machine is equipped with a mold. Conventionally, relying solely on the ejector pin to separate, the force of the ejector pin is insufficient, which will cause jamming during demolding and prevent the shaped raw materials from being separated. Manual intervention or other tools are required to separate the shaped raw materials, resulting in inconvenient demolding. Content of the Utility Model

[0005] The purpose of the present utility model is to provide an injection molding machine with a spiral conveying structure to solve the problem in the above-mentioned background technique that relying solely on the ejector pin to separate, the force of the ejector pin is insufficient, which will cause jamming during demolding and prevent the shaped raw materials from being separated, requiring manual intervention and resulting in discontinuous production equipment and delaying the discharging time. To achieve the above purpose, the present utility model provides the following technical solution: An injection molding machine with a spiral conveying structure, including a control cabinet, an fixing plate is installed above the control cabinet through screws, and a fixing groove is provided above the fixing plate;

[0006] A connecting plate is installed above the fixing plate through screws. The housing of a second cylinder is installed inside the connecting plate through screws. A cover plate is installed on one side output shaft of the second cylinder through bolts. A third cylinder is installed on one side of the cover plate through a cylinder support seat. A push plate is installed on one side output shaft of the third cylinder through bolts. An ejector pin is welded on the other side of the cover plate. A sliding rod is attached to the inside of the cover plate, and a mold is attached to one side of the cover plate.

[0007] Further preferably, a motor support seat of a first motor is installed above the control cabinet through screws. A screw conveyor rod is installed on a side output shaft of the first motor through bolts. A conveying pipeline is arranged on one side of the screw conveyor rod. A heating shell is attached to an outer wall of the conveying pipeline. A check valve is installed on one side of the conveying pipeline through screws. A feed inlet is arranged above the conveying pipeline. A second motor is arranged on an outer wall of the feed inlet. A rotating shaft is installed on a side output shaft of the second motor through bolts. A rotating blade is arranged on an outer wall of the rotating shaft. The rotating shaft forms a rotating structure through the second motor. A plurality of rotating blades are horizontally and evenly arranged on an outer surface of the rotating shaft. The rotating blade forms a rotating structure through the rotating shaft.

[0008] Further preferably, the screw conveyor rod forms a rotating structure through a first motor.

[0009] Further preferably, a first air cylinder is installed above the fixing groove through screws. A moving plate is installed on a side output shaft of the first air cylinder through bolts. A limiting block is welded on one side of the moving plate. The moving plate forms a sliding structure through the first air cylinder. Outer structural dimensions of one side of the moving plate and the limiting block are consistent with inner hole groove structural dimensions of the fixing groove.

[0010] Further preferably, the push plate forms a sliding structure through a third air cylinder. Outer structural dimensions of the push plate are consistent with inner structural dimensions of the push plate.

[0011] Further preferably, the cover plate forms a sliding structure through a second air cylinder. Inner structural dimensions of the cover plate are consistent with outer structural dimensions of the sliding rod.

[0012] Further preferably, outer structural dimensions of one side of the cover plate are consistent with outer structural dimensions of one side of the mold. A plurality of ejector pins are arranged in a circular pattern on one side of the cover plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, a stirring assembly is arranged at the feed inlet, which can disperse the incoming raw materials, avoid the situation of excessive or insufficient local feeding, reduce the accumulation and blockage of raw materials at the feed inlet, ensure the smooth feeding, and the conveying pipeline can heat the raw materials. Heating can reduce its viscosity, enable the raw materials to flow more smoothly in the conveying pipeline, and avoid the blockage of raw materials inside the pipeline.

[0015] In the present utility model, ejector pins are arranged on the mold cover plate of the injection molding machine to assist in separating the raw materials. To avoid insufficient force for separating the raw materials, a set of air cylinder assemblies is arranged to push the push plate, which can quickly separate the raw materials. A check valve and a moving plate are arranged during feeding to ensure that the mold is a closed assembly, facilitate the solidification of raw materials inside the mold, and at the same time avoid the backflow of raw materials. Description of the Drawings

[0016] Figure 1 This is a schematic top view structure diagram of the present utility model;

[0017] Figure 2 This is a schematic front view structure diagram of the present utility model;

[0018] Figure 3 This is a schematic structure diagram above the control cabinet of the present utility model;

[0019] Figure 4 This is a schematic internal structure diagram of the fixing groove of the present utility model;

[0020] Figure 5 This is a schematic structure diagram above the fixing plate of the present utility model.

[0021] In the figure: 1. Control cabinet; 101. Heating shell; 102. First motor; 103. Second motor; 104. Feed inlet; 105. Rotating shaft; 106. Rotating blade; 107. Conveying pipeline; 108. Check valve; 109. Screw conveyor; 2. Fixing groove; 201. Limiting block; 202. First cylinder; 203. Moving plate; 3. Fixing plate; 301. Pushing plate; 302. Thimble; 303. Second cylinder; 304. Connecting plate; 305. Third cylinder; 306. Slide bar; 307. Mold; 308. Cover plate. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 of 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.

[0023] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: an injection molding machine with a self - contained screw conveyor structure, including a control cabinet 1, a fixing plate 3 is installed above the control cabinet 1 through screws, and a fixing groove 2 is provided above the fixing plate 3;

[0024] A connecting plate 304 is installed above the fixing plate 3 through screws, the housing of a second cylinder 303 is installed inside the connecting plate 304 through screws, a cover plate 308 is installed on the output shaft on one side of the second cylinder 303 through bolts, a third cylinder 305 is installed on one side of the cover plate 308 through a cylinder support seat, a pushing plate 301 is installed on the output shaft on one side of the third cylinder 305 through bolts, a thimble 302 is welded on the other side of the cover plate 308, a slide bar 306 is attached to the inside of the cover plate 308, and a mold 307 is attached to one side of the cover plate 308.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, above the control cabinet 1, a motor support seat of the first motor 102 is installed by screws. On one side of the output shaft of the first motor 102, a screw conveyor rod 109 is installed by bolts. On one side of the screw conveyor rod 109, there is a conveying pipe 107. The outer wall of the conveying pipe 107 is attached to a heating shell 101. On one side of the conveying pipe 107, a check valve 108 is installed by screws. Above the conveying pipe 107, there is a feeding port 104. On the outer wall of the feeding port 104, there is a second motor 103. On one side of the output shaft of the second motor 103, a rotating shaft 105 is installed by bolts. On the outer wall of the rotating shaft 105, there are rotating blades 106, and the rotating shaft 105 forms a rotating structure through the second motor 103. And a plurality of rotating blades 106 are horizontally and evenly arranged on the outer surface of the rotating shaft 105, and the rotating blades 106 form a rotating structure through the rotating shaft 105; when feeding, a large amount of raw materials will be poured out. In order to prevent the raw materials from clogging at the feeding port 104, the second motor 103 drives the rotating blades 106 on the upper surface of the rotating shaft 105 to rotate clockwise. The structure of the rotating blades 106 can make the raw materials enter the barrel of the injection molding machine more evenly, avoid the situation of too much or too little local feeding, reduce the accumulation and blockage of raw materials at the feeding port 104, ensure the smooth feeding, enable the raw materials to be pre-mixed and pre-treated to a certain extent before entering the barrel, which is beneficial to the subsequent plasticizing process and improves the plasticizing quality.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the screw conveyor rod 109 forms a rotating structure through the first motor 102; the outside of the conveying pipe 107 is provided with a heating shell 101, and the heating shell 101 is connected to the mold temperature controller in the control cabinet 1. The screw conveyor rod 109 inside the conveying pipe 107 conveys raw materials. The first motor 102 drives the screw conveyor rod 109 to rotate clockwise to convey raw materials. Plastic raw materials often have a high viscosity at room temperature. Heating can reduce its viscosity, enabling it to flow more smoothly in the conveying pipe 107, thereby improving the injection molding efficiency and quality, preventing the plastic from solidifying prematurely. Heating can keep the plastic in a molten state during the conveying process and avoid its premature solidification and blockage in the pipeline.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown in the figure, a first cylinder 202 is installed above the fixed slot 2 by screws. A moving plate 203 is installed on the output shaft on one side of the first cylinder 202 by bolts. A limiting block 201 is welded to one side of the moving plate 203. The moving plate 203 forms a sliding structure through the first cylinder 202. The external structure dimensions of one side of the moving plate 203 and the limiting block 201 are consistent with the internal hole structure dimensions of the fixed slot 2. The first cylinder 202 drives the moving plate 203 to move horizontally to one side, so that the moving plate 203 moves inside the hole of the fixed slot 2. The moving plate 203 is provided with a limiting block 201, which can prevent the whole moving plate 203 from moving out. The first cylinder 202 controls the length and time of the output shaft extending through the control cabinet 1, realizes the opening and closing of the moving plate 203, makes the space of the mold 307 a closed space, and at the same time avoids the backflow of the incoming raw materials, which is convenient for pressing the mold.

[0028] In this embodiment, as Figure 5 shown, the push plate 301 forms a sliding structure through the third cylinder 305, and the external structure dimensions of the push plate 301 are consistent with the internal structure dimensions of the push plate 301. When pressing the mold, in order to facilitate the demolding of the raw materials inside the mold 307, the third cylinder 305 pushes the push plate 301 to move to one side, demolding the formed raw materials, which is convenient for demolding.

[0029] In this embodiment, as Figure 1 、 Figure 2 and Figure 5 shown, the cover plate 308 forms a sliding structure through the second cylinder 303, and the internal structure dimensions of the cover plate 308 are consistent with the external structure dimensions of the slide bar 306. The second cylinder 303 pushes the cover plate 308 to one side, so that the cover plate 308 and the mold 307 form a closed sealing shape, which is convenient for the raw materials inside the mold 307 to be formed. One side of the mold 307 is provided with a connection port to connect the mold temperature controller inside the control cabinet 1 for cooling. The control cabinet 1 controls the temperature of the equipment, so that the raw materials inside the mold 307 are formed.

[0030] In this embodiment, as Figure 5 shown, the external structure dimensions of one side of the cover plate 308 are consistent with the external structure dimensions of one side of the mold 307, and a plurality of ejector pins 302 are arranged in a circular pattern on one side of the cover plate 308. A plurality of ejector pins 302 are provided on one side of the cover plate 308, so that the ejector pins 302 can be inserted into the mold 307, which is convenient for demolding. When the mold 307 is formed, the whole is removed through the ejector pins 302, and the third cylinder 305 makes the push plate 301 push to one side, which is convenient for the mold 307 to be demolded, so that the formed mold 307 can be quickly demolded.

[0031] The usage method and advantages of the present utility model: When the injection molding machine with a self - contained spiral conveying structure is in use, the working process is as follows:

[0032] As Figure 1 、Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , first, adjust the temperature of the mold temperature machine inside the control cabinet 1 panel, so that the connecting pipe of the mold temperature machine is adjusted to heating, and the liquid enters the heating shell 101. The mold temperature machine adopts a dual-temperature machine integrated machine (model: 6KW - 48KW). The control cabinet 1 controls the temperature of the mold temperature machine, so that the connecting pipe of the mold temperature machine conveys the cooled liquid into the mold 307. The rotation speed, start and end of the first motor 102 and the second motor 103 are controlled by the sensor in the control cabinet 1. By setting corresponding control circuits and components in the control cabinet 1, such as relays, contactors, controllers, etc., precise control of the opening and closing actions of the check valve 108 can be achieved. The control cabinet 1 receives signals from sensors or other control signals, and according to the preset logic and program, sends control instructions to the check valve 108 to make it open or close under specific conditions. The first cylinder 202, the second cylinder 303 and the third cylinder 305 adjust the operating length, start time and end time through the sensors in the control cabinet 1. The raw materials are poured into the feed port 104, and the second motor 103 drives the rotating shaft 105 and the rotating blade 106 to rotate clockwise in sequence to prevent the raw materials from blocking the hole. The raw materials enter the inside of the conveying pipe 107. The control cabinet 1 heats the heating shell 101, and the second motor 103 drives the screw conveyor 109 to rotate clockwise to transport the raw materials into the mold 307. The check valve 108 prevents the raw materials from flowing back. The first cylinder 202 drives the moving plate 203 to move to one side, so that the moving plate 203 fits the inner hole of the fixed groove 2 to prevent the raw materials from entering and seal the space of the mold 307. After the raw materials are formed, the second cylinder 303 moves the cover plate 308 to one side, and the cover plate 308 is separated from the mold 307. The ejector pins 302 on the cover plate 308 can simultaneously move out the shaped raw materials. The third cylinder 305 pushes the push plate 301 to realize that the push plate 301 pushes out the shaped raw materials, which is convenient for rapid demolding.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine with a screw conveying structure, comprising a control cabinet (1), characterized in that: A fixing plate (3) is installed on the top of the control cabinet (1) by means of screws, and a fixing groove (2) is provided on the top of the fixing plate (3); A connecting plate (304) is installed on the top of the fixing plate (3) by means of screws, the outer shell of the second cylinder (303) is installed inside the connecting plate (304) by means of screws, a cover plate (308) is installed on one side of the output shaft of the second cylinder (303) by means of bolts, a third cylinder (305) is installed on one side of the cover plate (308) by means of a cylinder support seat, a push plate (301) is installed on one side of the output shaft of the third cylinder (305) by means of bolts, a push pin (302) is welded on the other side of the cover plate (308), a sliding rod (306) is bonded to the inside of the cover plate (308), and a mold (307) is bonded to one side of the cover plate (308).

2. The injection molding machine with a spiral conveying structure according to claim 1, characterized in that: A motor support seat of a first motor (102) is installed on the top of the control cabinet (1) by means of screws, a spiral conveying rod (109) is installed on one side of an output shaft of the first motor (102) by means of bolts, a conveying pipe (107) is provided on one side of the spiral conveying rod (109), a heating shell (101) is attached to the outer wall of the conveying pipe (107), a check valve (108) is installed on one side of the conveying pipe (107) by means of screws, and a valve (109) is provided on the top of the conveying pipe (107). A feed port (104) is provided, and a second motor (103) is provided on the outer wall of the feed port (104); a rotating shaft (105) is installed on one side output shaft of the second motor (103) by means of bolts; a rotating blade (106) is provided on the outer wall of the rotating shaft (105); the rotating shaft (105) forms a rotating structure through the second motor (103); and a plurality of rotating blades (106) are evenly arranged horizontally on the outer wall of the rotating shaft (105); and the rotating blades (106) form a rotating structure through the rotating shaft (105).

3. The injection molding machine with a spiral conveying structure according to claim 2, characterized in that: The spiral conveying rod (109) forms a rotating structure through the first motor (102).

4. The injection molding machine with a spiral conveying structure according to claim 1, characterized in that: A first cylinder (202) is installed above the fixed groove (2) by means of screws, a movable plate (203) is installed on one side of the output shaft of the first cylinder (202) by means of bolts, a limiting block (201) is welded to one side of the movable plate (203), and the movable plate (203) forms a sliding structure through the first cylinder (202), and the external structural dimensions of one side of the movable plate (203) and the limiting block (201) are consistent with the internal hole groove structural dimensions of the fixed groove (2).

5. The injection molding machine with a spiral conveying structure according to claim 1, characterized in that: The push plate (301) forms a sliding structure through the third cylinder (305), and the external structural dimensions of the push plate (301) are consistent with the internal structural dimensions of the push plate (301).

6. The injection molding machine with a spiral conveying structure according to claim 1, characterized in that: The cover plate (308) forms a sliding structure through the second cylinder (303), and the internal structural dimensions of the cover plate (308) are consistent with the external structural dimensions of the sliding rod (306).

7. The injection molding machine with a spiral conveying structure according to claim 1, characterized in that: The external structural dimensions of one side of the cover plate (308) are consistent with the external structural dimensions of one side of the mold (307), and a plurality of ejector pins (302) are arranged in a ring on one side of the cover plate (308).

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