Injection molding machine with injection molding machine nozzle convenient to replace

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding machine convenient to replace a nozzle of the injection molding machine, the injection molding machine comprises an injection molding machine main body, the injection molding machine main body comprises a guide rail, a screw extruder, a feed hopper, a guide rod, a fixed template and a movable template, the end part of the screw extruder is provided with a connecting assembly, and the connecting assembly comprises a slot; the insertion groove is formed in the end part of the screw extruder, a spray head is inserted into the insertion groove, positioning holes are formed in the inner wall of the insertion groove and the outer wall of the spray head, U-shaped rods are inserted into the positioning holes, grooves are formed in the outer walls of the U-shaped rods, and an ejection assembly is arranged on the inner wall of the insertion groove. According to the utility model, by moving the widening plate, the reset spring is compressed, and the insertion plate is separated from the groove, so that the limiting of the U-shaped rod is relieved, the U-shaped rod is pulled out from the positioning hole, the fixation of the spray head is relieved, and the complexity of the replacement process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine which is convenient for replacing a nozzle of the injection molding machine. Background Art

[0002] An injection molding machine is a device used for processing plastic products. It injects molten plastic into a mold and manufactures various plastic products, such as plastic parts, containers, packaging, etc., through a cooling and solidification process. It is widely used in the manufacturing industry because it can efficiently produce large quantities of plastic products and can adapt to various complex shapes and size requirements.

[0003] During the production process, plastic material will remain in the nozzle, causing blockage or affecting production quality. Even after cleaning, it is difficult to completely remove the residue, so replacing the nozzle can ensure production continuity and quality stability.

[0004] In the prior art, replacing a nozzle may require additional tools and equipment, which requires the tools and equipment to be prepared in advance, increasing the complexity of the replacement process. Therefore, an injection molding machine that is convenient for replacing an injection molding machine nozzle is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an injection molding machine that is easy to replace the injection molding machine nozzle, aiming to improve the problem in the prior art that replacing the nozzle may require additional tools and equipment, which increases the complexity of the replacement process.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection molding machine which is convenient for replacing the injection molding machine nozzle, comprising an injection molding machine body, wherein the injection molding machine body comprises a guide rail, a screw extruder, a feed hopper, a guide rod, a fixed template, and a movable template, a connecting component is arranged at the end of the screw extruder, the connecting component comprises a slot, the slot is opened at the end of the screw extruder, a nozzle is inserted into the interior of the slot, positioning holes are opened on the inner wall of the slot and the outer wall of the nozzle, a U-shaped rod is inserted into the interior of the positioning hole, and a groove is opened on the outer wall of the U-shaped rod.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the screw extruder is provided with a limiting assembly, and the limiting assembly includes a mounting seat. The mounting seat is provided with two groups, and a straight rod is fixedly connected between the two groups of mounting seats. The outer wall of the straight rod is slidably connected with a plug plate and a widening plate, and the plug plate is plugged into the groove.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the slot is provided with an ejection assembly, which includes a slide groove, which is opened on the inner wall of the screw extruder, a slider is slidably connected in the slide groove, an extension tube is fixedly connected to the bottom surface of the slider, and a ring is fixedly connected to the outer wall of the extension tube.

[0011] As a further description of the above technical solution:

[0012] The widening plate and the mounting seat are elastically connected via a return spring, and the return spring is sleeved on the outer wall of the straight rod.

[0013] As a further description of the above technical solution:

[0014] The widening plate is fixedly connected to the top of the plug plate.

[0015] As a further description of the above technical solution:

[0016] The extension tube is slidably connected to the inner wall of the screw extruder.

[0017] As a further description of the above technical solution:

[0018] The circular ring is elastically connected to the inner wall of the slot via a supporting spring.

[0019] As a further description of the above technical solution:

[0020] A sealing gasket is fixedly connected to the surface of the ring.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by moving the widening plate, the reset spring is compressed, and the plug plate is separated from the groove, thereby releasing the limit on the U-shaped rod, and the U-shaped rod is pulled out of the positioning hole to release the fixation of the nozzle, reducing the complexity of the replacement process.

[0023] 2. In the utility model, the circular ring is rebounded by the support spring, and the movable range of the extension tube is limited by the cooperation between the slider and the slide groove, thereby preventing the extension tube from falling off from the screw extruder, and the nozzle is squeezed out by the circular ring, thereby improving the replacement efficiency of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of an injection molding machine for facilitating replacement of an injection molding machine nozzle proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of an injection molding machine that is convenient for replacing the injection molding machine nozzle proposed by the utility model;

[0026] Figure 3This is a schematic diagram of the overall structure of a screw extruder of an injection molding machine that is convenient for replacing the nozzle of the injection molding machine proposed by the utility model;

[0027] Figure 4 This is a schematic structural diagram of the end section of a screw extruder of an injection molding machine that is convenient for replacing the nozzle of the injection molding machine, which is proposed by the utility model;

[0028] Figure 5 The utility model discloses a structural schematic diagram of a limit assembly of an injection molding machine which is convenient for replacing the nozzle of the injection molding machine.

[0029] Legend:

[0030] 1. Injection molding machine body; 11. Guide rail; 12. Screw extruder; 13. Feed hopper; 14. Guide rod; 15. Fixed plate; 16. Moving plate; 2. Connecting assembly; 21. Slot; 22. Nozzle; 23. Positioning hole; 24. U-shaped rod; 25. Groove; 3. Limiting assembly; 31. Mounting seat; 32. Straight rod; 33. Insert plate; 34. Widening plate; 35. Reset spring; 4. Ejector assembly; 41. Slide; 42. Slider; 43. Extension tube; 44. Ring; 45. Support spring; 46. Sealing pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3 The utility model provides an embodiment: an injection molding machine that is easy to replace the injection molding machine nozzle, including an injection molding machine body 1, the injection molding machine body 1 includes a guide rail 11, a screw extruder 12, a feed hopper 13, a guide rod 14, a fixed mold plate 15, and a movable mold plate 16, the guide rail 11, the screw extruder 12, the feed hopper 13, the guide rod 14, the fixed mold plate 15, and the movable mold plate 16 are conventional components of the injection molding machine, and therefore are not described in detail in this application.

[0033] Reference Figure 3-4The end of the screw extruder 12 is provided with a connection component 2, which is used to fix the nozzle 22 and can simplify the replacement process of the nozzle 22, thereby improving the convenience and efficiency of the operation. The connection component 2 includes a slot 21, which is opened at the end of the screw extruder 12, and is used to accommodate the nozzle 22. The nozzle 22 is plugged into the slot 21 of the screw extruder 12, and the nozzle 22 is responsible for spraying the molten plastic into the mold. The nozzle 22 is connected to the screw extruder 12 by being plugged into the slot 21 of the screw extruder 12. A positioning hole 23 is provided on the inner wall of the slot 21 and the outer wall of the nozzle 22. A U-shaped rod 24 is inserted into the interior of the positioning hole 23. A groove 25 is provided on the outer wall of the U-shaped rod 24. The positioning hole 23 on the slot 21 corresponds to the position and size of the positioning hole 23 on the nozzle 22, and is used for inserting the U-shaped rod 24 to position the nozzle 22. After the U-shaped rod 24 is inserted into the positioning hole 23, the groove 25 on the U-shaped rod 24 is exposed from the other side of the screw extruder 12.

[0034] Reference Figure 3-5 The outer wall of the screw extruder 12 is provided with a limiting assembly 3, which is used to limit the U-shaped rod 24 so that the U-shaped rod 24 and the positioning hole 23 cannot be separated, thereby improving the fixing effect of the U-shaped rod 24 on the nozzle 22. The limiting assembly 3 includes a mounting seat 31, and the mounting seat 31 is provided with two groups. A straight rod 32 is fixedly connected between the two groups of mounting seats 31. The two groups of mounting seats 31 are used to fix the two ends of the straight rod 32. The outer wall of the straight rod 32 is slidably connected with a plug plate 33 and a widening plate 34. The straight rod 32 is used to position the plug plate 33 and the widening plate 34, and the widening plate 34 is in contact with the outer wall of the screw extruder 12, so that the position of the plug plate 33 and the groove 25 is in the same plane. The plug plate 33 is inserted into the groove 25, and the widening plate 34 is fixedly connected to the top of the plug plate 33. The widening plate 34 and the mounting seat 31 are elastically connected through a return spring 35. The return spring 35 is sleeved on the outer wall of the straight rod 32. The return spring 35 is used to elastically support the widening plate 34, so that the plug plate 33 is inserted into the groove 25 to fix the U-shaped rod 24.

[0035] Reference Figure 4The inner wall of the slot 21 is provided with an ejector assembly 4, which is used to easily eject the nozzle 22 from the groove 25, further facilitating replacement or maintenance. The ejector assembly 4 includes a slide 41, which is opened on the inner wall of the screw extruder 12. A slider 42 is slidably connected in the slide 41, and an extension tube 43 is fixedly connected to the bottom surface of the slider 42. The slider 42 cooperates with the slide 41 to limit the range of movement of the extension tube 43, thereby preventing the extension tube 43 from falling off from the screw extruder 12. The extension tube 43 is slidably connected to the inner wall of the screw extruder 12, and the extension tube 43 is used to input the molten plastic in the screw extruder 12 into the nozzle. In the head 22, a ring 44 is fixedly connected to the outer wall of the extension tube 43, and the ring 44 is elastically connected to the inner wall of the slot 21 through a support spring 45. The ring 44 is tightly fitted with the nozzle 22 by the elastic support of the support spring 45. When the limit of the U-shaped rod 24 by the limit assembly 3 is released, the U-shaped rod 24 is removed, the nozzle 22 loses the limit, and the support spring 45 rebounds the ring 44, thereby squeezing out the nozzle 22, and realizing the easy replacement of the nozzle 22. A sealing gasket 46 is fixedly connected to the surface of the ring 44, and the sealing gasket 46 is used to improve the sealing performance between the nozzle 22 and the ring 44.

[0036] Working principle: When replacing the nozzle 22, the reset spring 35 is compressed by moving the widening plate 34, and the plug plate 33 is separated from the groove 25, thereby releasing the limit on the U-shaped rod 24, and the U-shaped rod 24 is pulled out from the positioning hole 23, releasing the fixation of the nozzle 22, and the ring 44 is rebounded by the supporting spring 45. The slider 42 and the slide groove 41 cooperate with each other to limit the range of movement of the extension tube 43, thereby preventing the extension tube 43 from falling off from the screw extruder 12, thereby squeezing out the nozzle 22 and realizing easy replacement of the nozzle 22.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection molding machine that is convenient for replacing the injection molding machine nozzle, comprising an injection molding machine body (1), wherein the injection molding machine body (1) comprises a guide rail (11), a screw extruder (12), a feed hopper (13), a guide rod (14), a fixed mold plate (15), and a movable mold plate (16), characterized in that: A connecting component (2) is provided at the end of the screw extruder (12), and the connecting component (2) comprises a slot (21). The slot (21) is opened at the end of the screw extruder (12), a nozzle (22) is inserted into the slot (21), a positioning hole (23) is provided on the inner wall of the slot (21) and the outer wall of the nozzle (22), a U-shaped rod (24) is inserted into the inner wall of the positioning hole (23), and a groove (25) is provided on the outer wall of the U-shaped rod (24).

2. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 1, characterized in that: The outer wall of the screw extruder (12) is provided with a limit assembly (3), and the limit assembly (3) includes a mounting seat (31). The mounting seat (31) is provided in two groups, and a straight rod (32) is fixedly connected between the two groups of the mounting seats (31). The outer wall of the straight rod (32) is slidably connected with a plug plate (33) and a widening plate (34), and the plug plate (33) is plugged into the groove (25).

3. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 1, characterized in that: The inner wall of the slot (21) is provided with an ejection assembly (4), and the ejection assembly (4) includes a slide groove (41), and the slide groove (41) is opened on the inner wall of the screw extruder (12), and a slider (42) is slidably connected in the slide groove (41), and an extension tube (43) is fixedly connected to the bottom surface of the slider (42), and a ring (44) is fixedly connected to the outer wall of the extension tube (43).

4. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 2, characterized in that: The widening plate (34) and the mounting seat (31) are elastically connected via a return spring (35), and the return spring (35) is sleeved on the outer wall of the straight rod (32).

5. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 2, characterized in that: The widening plate (34) is fixedly connected to the top of the plug plate (33).

6. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 3, characterized in that: The extension tube (43) is slidably connected to the inner wall of the screw extruder (12).

7. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 3, characterized in that: The circular ring (44) is elastically connected to the inner wall of the slot (21) via a supporting spring (45).

8. The injection molding machine for facilitating replacement of the injection molding machine nozzle according to claim 3, characterized in that: A sealing gasket (46) is fixedly connected to the surface of the circular ring (44).

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