Injection molding machine

Abstract

The utility model discloses an injection molding machine which comprises a working table, an injection molding mechanism and a conveying pipe are fixedly installed on the working table, a sliding frame is fixedly connected to the conveying pipe, a hopper is arranged on the sliding frame in a sliding mode, a feeding platform is arranged in the sliding frame, the feeding platform is fixedly installed on the conveying pipe, and the hopper is arranged on the feeding platform. A plurality of feeding ports are formed in the feeding platform and are communicated with the hopper and the conveying pipe. The hopper is arranged on the sliding frame in a sliding manner, so that the distance between the hopper and the workbench can be changed, the stroke length of pushing plastic particles into a mold by the screw rod can be controlled, the proper stroke length can be determined according to the sizes of the plastic particles, and the hopper slides to a corresponding position; compared with changing of parameters of a heating assembly, the problem that plastic particles located in the center area of the conveying pipe are not melted thoroughly is solved, and the percent of pass of plastic parts is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine. Background Art

[0002] The injection molding machine melts the plastic particles and delivers them into the mold for cooling and characterization, thereby producing a variety of plastic parts. The plastic particles inside the delivery tube are heated and melted by heating the outer wall of the delivery tube. In one cycle of the injection molding machine, a certain amount of plastic can be heated and plasticized within a specified time, and then the molten plastic is injected into the mold cavity through the screw at a certain pressure and speed. During the journey of the screw pushing the plastic particles into the mold, the plastic particles need to be heated and melted, but the existing plastic particles have various specifications and shapes, and the size of each batch of plastic particles is also inconsistent. This leads to the need to adjust the parameters of the heating component when using different plastic particles to adjust the temperature of the delivery tube to melt the larger plastic particles. However, due to the unchanged journey, there are more plastic particles in the delivery tube, and the plastic particles in the middle area are not fully melted, resulting in a decrease in the qualified rate of plastic parts production. Utility Model Content

[0003] The purpose of the utility model is to provide an injection molding machine to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding machine, comprising: a workbench, on which an injection molding mechanism and a conveying pipe are fixedly installed, a sliding frame is fixedly connected to the conveying pipe, a hopper is slidably arranged on the sliding frame, a feeding platform is arranged in the sliding frame, the feeding platform is fixedly installed on the conveying pipe, and a plurality of feeding ports are opened on the feeding platform, and the feeding ports connect the hopper and the conveying pipe.

[0005] Furthermore, a plurality of semi-circular disc heating components are installed below the position where the sliding frame is installed on the conveying pipe.

[0006] Furthermore, four disc heating components are fixedly sleeved on the conveying pipe.

[0007] Furthermore, a material guide nozzle is slidably arranged in the hopper.

[0008] Furthermore, the material guiding nozzle is connected to the hopper via a spring, one end of the spring is fixedly connected to the material guiding nozzle, and the other end of the spring is fixedly connected to the hopper.

[0009] Furthermore, a plunger is provided in the material guiding nozzle, and the plunger is matched with the material outlet of the hopper.

[0010] In the above technical solution, the injection molding machine provided by the utility model has the beneficial effects of:

[0011] The utility model sets the hopper on the sliding frame so that the distance between the hopper and the workbench can be changed, so that the stroke length of the screw pushing the plastic particles into the mold can be controlled, so that the appropriate stroke length is determined according to the size of the plastic particles, the hopper is slid to the corresponding position, and the hopper and the feed port are installed to complete the equipment debugging. Compared with changing the parameters of the heating component, the problem of incomplete melting of plastic particles in the central area of ​​the conveying pipe is avoided, and the qualified rate of plastic parts is greatly improved.

[0012] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0013] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the structure provided for an embodiment of the utility model;

[0016] Figure 2 The embodiment of the utility model provides Figure 1 A magnified image;

[0017] Figure 3 This is a schematic diagram of the structure of the material guide nozzle provided in an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1. Workbench; 2. Injection molding mechanism; 3. Delivery pipe; 4. Disc heating assembly; 5. Hopper; 51. Guide groove; 6. Sliding frame; 7. Semi-disc heating assembly; 8. Feeding platform; 81. Feeding port; 9. Feeding nozzle; 91. Spring; 92. Plunger; 93. Fixing bar. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] Please refer to 1-3, an injection molding machine includes: a workbench 1, an injection molding mechanism 2 and a conveying pipe 3 are fixedly installed on the workbench 1, a sliding frame 6 is fixedly connected to the conveying pipe 3, a hopper 5 is slidably arranged on the sliding frame 6, a feeding platform 8 is arranged in the sliding frame 6, the feeding platform 8 is fixedly installed on the conveying pipe 3, and a plurality of feeding ports 81 are opened on the feeding platform 8, and the feeding ports 81 connect the hopper 5 and the conveying pipe 3.

[0022] Specifically, the utility model sets the hopper 5 on the sliding frame 6 so that the distance between the hopper 5 and the workbench 1 can be changed, so that the stroke length of the screw pushing the plastic particles into the mold can be controlled, so as to determine the appropriate stroke length according to the size of the plastic particles, slide the hopper 5 to the corresponding position, and align the hopper 5 with the feed port 81 to complete the equipment debugging. Compared with changing the parameters of the heating component, the problem of incomplete melting of the plastic particles in the central area of ​​the conveying pipe 3 is avoided, and the qualified rate of plastic parts is greatly improved.

[0023] In another embodiment of the present invention, reference Figures 1 to 3An injection molding machine comprises: a workbench 1, an injection molding mechanism 2 and a conveying pipe 3 are fixedly installed on the workbench 1, the conveying pipe 3 provides the injection molding mechanism 2 with melted plastic, and after the injection molding mechanism 2 is extruded and cooled, a plastic part corresponding to the mold can be obtained, a sliding frame 6 is fixedly connected to the conveying pipe 3, the sliding frame 6 is two guide rails, the sliding frame 6 is welded to the upper half of the conveying pipe 3, a hopper 5 is slidably arranged on the sliding frame 6, and the hopper 5 is provided with a guide rail groove adapted to the sliding frame 6, so that the hopper 5 can slide on the sliding frame 6, a feeding platform 8 is arranged in the sliding frame 6, the feeding platform 8 is fixedly installed on the conveying pipe 3, the feeding platform 8 is welded on the conveying pipe 3, and is located on the sliding frame 6. Between the two guide rails of the moving frame 6, and a plurality of feed ports 81 are opened on the feeding platform 8, the feed port 81 is connected to the hopper 5 and the conveying pipe 3, the plastic particles in the hopper 5 pass through the feed port 81 and enter the conveying pipe 3 to be heated, a plurality of semi-disc heating components 7 are installed below the position where the sliding frame 6 is installed on the conveying pipe 3, the semi-disc heating components 7 are semi-circular heating rods, which serve the purpose of preheating the plastic particles and improving the melting degree of the plastic particles, four disc heating components 4 are fixedly sleeved on the conveying pipe 3, the disc heating components 4 are fixed heating elements on the conveying pipe 3, the conveying pipe 3 is heated by the disc heating components 4, so that the plastic particles are melted in the conveying pipe 3, and a guide is slidingly arranged in the hopper 5 The material nozzle 9 is connected to the hopper 5 through a spring 91, one end of the spring 91 is fixedly connected to the material nozzle 9, and the other end of the spring 91 is fixedly connected to the hopper 5, such as: a guide groove 51 is provided at the lower end of the hopper 5, the material nozzle 9 is slidably set in the guide groove 51, and is connected to the inner wall of the guide groove 51 through the spring 91, so that a plunger 92 is provided in the material nozzle 9, and the plunger 92 is adapted to the discharge port of the hopper 5, and the plunger 92 is connected to the material nozzle 9 through a plurality of fixing bars 93, and the fixing bars 93 are connected to the material nozzle 9 and the plunger 92 by welding, so that holes are formed between adjacent fixing bars 93 for plastic particles to pass through, when the hopper 5 is pushed to adjust the plastic particles in the conveying pipe 3 When the stroke distance within the range is reached, the guide nozzle 9 will enter the other feed port 81 from one of the feed ports 81, that is, first the inclined surface on the guide nozzle 9 abuts against the side wall of the feed port 81, thereby overcoming the elastic force of the spring 91, and the guide nozzle 9 will retract into the guide groove 51, so that the plunger 92 slides into the discharge port of the hopper 5, so that the discharge port of the hopper 5 is blocked. At this time, the lower end of the guide nozzle 9 moves against the top surface of the feeding platform 8 until the guide nozzle 9 enters the other feed port 81. Under the action of the elastic force of the spring 91, the guide nozzle 9 slides out of the guide groove 51, and the plunger 92 slides out of the discharge port of the hopper 5, so that the hopper 5 is connected with the conveying pipe 3, and the adjustment of the stroke length of the plastic particles is completed.

[0024] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An injection molding machine, comprising: A workbench (1), characterized in that: an injection molding mechanism (2) and a conveying pipe (3) are fixedly installed on the workbench (1), a sliding frame (6) is fixedly connected to the conveying pipe (3), a hopper (5) is slidably arranged on the sliding frame (6), a feeding platform (8) is arranged inside the sliding frame (6), the feeding platform (8) is fixedly installed on the conveying pipe (3), and a plurality of feeding ports (81) are opened on the feeding platform (8), and the feeding ports (81) are connected to the hopper (5) and the conveying pipe (3).

2. An injection molding machine according to claim 1, characterized in that: A plurality of semi-circular disc heating components (7) are installed below the position where the sliding frame (6) is installed on the conveying pipe (3).

3. An injection molding machine according to claim 2, characterized in that: Four disc heating components (4) are fixedly sleeved on the delivery pipe (3).

4. An injection molding machine according to claim 3, characterized in that: A material guide nozzle (9) is slidably arranged in the hopper (5).

5. An injection molding machine according to claim 4, characterized in that: The material guide nozzle (9) is connected to the hopper (5) via a spring (91), one end of the spring (91) is fixedly connected to the material guide nozzle (9), and the other end of the spring (91) is fixedly connected to the hopper (5).

6. An injection molding machine according to claim 5, characterized in that: A plunger (92) is provided in the material guide nozzle (9), and the plunger (92) is matched with the material outlet of the hopper (5).

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