Injection molding machine nozzle purger

Abstract

The utility model relates to injection molding machine technical field especially a kind of injection molding machine nozzle clean material device, including mounting bracket, clamping mechanism, heating mechanism and drive assembly are provided on the mounting bracket, the clamping mechanism is fixedly installed in the inboard of the mounting bracket, for clamping and fixed injection molding machine nozzle, the heating mechanism is located in the clamping area of the clamping mechanism, for heating to the injection molding machine nozzle, the drive assembly is fixedly installed on the mounting bracket, the output end of the drive assembly is connected with a inserting rod, the sidewall of the mounting bracket is equipped with the reserved hole coaxial with the inserting rod, the drive assembly is used to drive the inserting rod horizontal movement. In the utility model, through the setting of clamping mechanism, heating mechanism and drive assembly, the independent steps of traditional disassembly, manual heating and manual inserting rod are set as automatic cleaning material process, reduce artificial intervention cleaning action, solve the problem of many operation steps, manpower consumption.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and more specifically, to an injection molding machine nozzle cleaning device. Background Technology

[0002] During the injection molding process, the nozzle of the injection molding machine continuously conveys molten plastic, which can easily leave plastic residue in the flow channel. If it is not cleaned in time, it will affect the quality of the injection molded products. Therefore, nozzle cleaning is a necessary process in injection molding.

[0003] Existing technology requires first removing the nozzle from the injection molding machine, clamping it in place on the workpiece table, and then manually inserting a plunger into the residual plastic inside the nozzle. The outer wall of the nozzle is then briefly heated to soften the remaining plastic, and finally the plunger is manually pulled out to remove the plastic residue. This cleaning method involves numerous steps, is time-consuming, and requires significant manpower for disassembly and manual insertion / removal of the plunger, making it unsuitable for the rapid cleaning needs of mass production. Utility Model Content

[0004] Based on the aforementioned technical problems of existing cleaning methods, such as numerous and time-consuming operation steps, and the need for a large amount of manpower for disassembly and manual insertion and removal of the plug, which make it difficult to meet the needs of rapid cleaning in mass production, this utility model proposes a nozzle cleaning device for injection molding machines.

[0005] This utility model discloses a nozzle cleaning device for an injection molding machine, comprising a mounting frame, a clamping mechanism, a heating mechanism, and a driving assembly. The clamping mechanism is fixedly installed on the inner side of the mounting frame and is used to clamp and fix the injection molding machine nozzle. The heating mechanism is located in the clamping area of ​​the clamping mechanism and is used to heat the injection molding machine nozzle. The driving assembly is fixedly installed on the mounting frame, and an insertion rod is connected to the output end of the driving assembly. A reserved hole coaxial with the insertion rod is opened on the side wall of the mounting frame. The driving assembly is used to drive the insertion rod to move horizontally, so that the insertion rod passes through the reserved hole and the flow channel of the injection molding machine nozzle fixed on the clamping mechanism in sequence.

[0006] Preferably, the clamping mechanism includes two symmetrically arranged support blocks, and a mounting plate is fixedly connected to the inner wall of the mounting frame, with the support blocks being fixedly connected to the top of the mounting plate.

[0007] Preferably, the clamping mechanism further includes a pressure plate located inside the mounting frame. The pressure plate has grooves at both ends of its bottom and at the top of the support block. A first cylinder is fixedly connected to the top of the mounting frame. The output end of the first cylinder passes through the mounting frame and extends to its inner side. The output end of the first cylinder is fixedly connected to the top of the pressure plate.

[0008] Preferably, two guide rods are fixedly connected to the top of the pressure plate, and the top of the guide rods passes through the mounting bracket and is slidably connected to it.

[0009] Preferably, the heating mechanism includes a plurality of first flame guns and second flame guns, wherein the first flame guns are fixedly connected to the inner wall of the mounting plate, and the second flame guns are fixedly connected to the pressure plate.

[0010] Preferably, the drive assembly includes a second cylinder and a first connecting plate. The inner wall of the mounting bracket has a mounting cavity. The second cylinder is fixedly connected to the inner wall of the mounting cavity. The first connecting plate is fixedly connected to the second cylinder and the insertion rod respectively. The output end of the second cylinder is fixedly connected to the second connecting plate. The second connecting plate is fixedly connected to the insertion rod.

[0011] Preferably, a fixing plate is fixedly connected to the outer wall of the mounting bracket, an installation groove is provided on the top of the fixing plate, a sliding rod is fixedly connected to the inner wall of the installation groove, a spring is sleeved on the outer wall of the sliding rod, a discharge plate is slidably connected to the outer wall of the sliding rod, the end of the insertion rod passes through the discharge plate and is slidably connected to it, one end of the spring is fixedly connected to the discharge plate, and the other end of the spring is fixedly connected to the fixing plate.

[0012] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0013] 1. By setting up a clamping mechanism, a heating mechanism, and a drive component, the traditional independent steps of disassembly, manual heating, and manual rod insertion are transformed into an automated material cleaning process, reducing manual intervention in material cleaning and solving the problems of multiple operation steps and high manpower consumption.

[0014] 2. The upper and lower grooves of the support block and the pressure plate cooperate to form an arc-shaped clamping surface that fits against the outer wall of the nozzle, increasing the contact area and preventing the nozzle from shifting or shaking due to the thrust of the insertion rod during the material cleaning process.

[0015] 3. After cleaning, the second cylinder is started in reverse to drive the insert rod out of the nozzle flow channel. During the insertion rod's withdrawal, the plastic is carried out. Under the elastic force of the spring, the unloading plate slides to the end of the mounting groove. At this time, the unloading plate is restricted and blocks the pulled-out plastic, pushing the plastic off the insert rod, thus facilitating the cleaning of the plastic on the insert rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the pressure plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the unloading plate of this utility model.

[0019] In the diagram: 1. Mounting bracket; 101. Mounting plate; 2. First flamethrower; 3. Pressure plate; 4. Second flamethrower; 5. Guide rod; 6. First cylinder; 7. Pre-drilled hole; 8. Support block; 9. Mounting cavity; 10. Second cylinder; 11. First connecting plate; 12. Insert rod; 13. Fixing plate; 1301. Mounting groove; 14. Sliding rod; 15. Spring; 16. Unloading plate; 17. Second connecting plate; 18. Support groove. Detailed Implementation

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral connection; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figure 1 As shown, an injection molding machine nozzle cleaning device includes a mounting frame 1. The mounting frame 1 is equipped with a clamping mechanism, a heating mechanism, and a driving assembly. The clamping mechanism is fixedly installed on the inner side of the mounting frame 1 and is used to clamp and fix the injection molding machine nozzle. The heating mechanism is located in the clamping area of ​​the clamping mechanism and is used to heat the injection molding machine nozzle. The driving assembly is fixedly installed on the mounting frame 1. The output end of the driving assembly is connected to an insertion rod 12. A reserved hole 7 coaxial with the insertion rod 12 is opened on the side wall of the mounting frame 1. The driving assembly is used to drive the insertion rod 12 to move horizontally, so that the insertion rod 12 passes through the reserved hole 7 and the flow channel of the injection molding machine nozzle fixed on the clamping mechanism in sequence.

[0023] By setting up a clamping mechanism, a heating mechanism, and a drive assembly, the traditional independent steps of disassembly, manual heating, and manual insertion of the rod 12 are transformed into an automated material cleaning process, reducing manual intervention in the material cleaning action and solving the problems of multiple operation steps and high manpower consumption.

[0024] like Figure 1 and Figure 2 As shown, the clamping mechanism includes two symmetrically arranged support blocks 8, and a mounting plate 101 is fixedly connected to the inner wall of the mounting frame 1. The support blocks 8 are fixedly connected to the top of the mounting plate 101.

[0025] The clamping mechanism also includes a pressure plate 3, which is located inside the mounting frame 1. The bottom ends of the pressure plate 3 and the top of the support block 8 are provided with support grooves 18. The top of the mounting frame 1 is fixedly connected to a first cylinder 6. The output end of the first cylinder 6 passes through the mounting frame 1 and extends to its inner side. The output end of the first cylinder 6 is fixedly connected to the top of the pressure plate 3.

[0026] The support block 8 and the upper and lower support grooves 18 of the pressure plate 3 cooperate to form an arc-shaped clamping surface that fits against the outer wall of the nozzle, increasing the contact area and preventing the nozzle from shifting or shaking due to the thrust of the insertion rod 12 during the cleaning process.

[0027] Two guide rods 5 are fixedly connected to the top of the pressure plate 3. The top of the guide rods 5 passes through the mounting bracket 1 and is slidably connected to it.

[0028] The guide rod 5 restricts the sliding trajectory of the pressure plate 3, preventing the pressure plate 3 from tilting due to uneven thrust from the first cylinder 6.

[0029] The heating mechanism includes multiple first flame guns 2 and second flame guns 4. The first flame guns 2 are fixedly connected to the inner wall of the mounting plate 101, and the second flame guns 4 are fixedly connected to the pressure plate 3.

[0030] The drive assembly includes a second cylinder 10 and a first connecting plate 11. The inner wall of the mounting bracket 1 has a mounting cavity 9. The second cylinder 10 is fixedly connected to the inner wall of the mounting cavity 9. The first connecting plate 11 is fixedly connected to the second cylinder 10 and the insertion rod 12 respectively. The output end of the second cylinder 10 is fixedly connected to a second connecting plate 17, and the second connecting plate 17 is fixedly connected to the insertion rod 12.

[0031] like Figure 1 and Figure 3 As shown, a fixing plate 13 is fixedly connected to the outer wall of the mounting bracket 1. The top of the fixing plate 13 has a mounting groove 1301. A sliding rod 14 is fixedly connected to the inner wall of the mounting groove 1301. A spring 15 is sleeved on the outer wall of the sliding rod 14. A discharge plate 16 is slidably connected to the outer wall of the sliding rod 14. The end of the insertion rod 12 passes through the discharge plate 16 and is slidably connected to it. One end of the spring 15 is fixedly connected to the discharge plate 16, and the other end of the spring 15 is fixedly connected to the fixing plate 13.

[0032] During cleaning, the second cylinder 10 pushes the insert rod 12 while simultaneously driving the unloading plate 16 to compress the spring 15. After cleaning is completed, the spring 15 forces the unloading plate 16 to slide in the opposite direction. Through the sliding contact between the unloading plate 16 and the insert rod 12, the plastic residue adhering to the insert rod 12 is automatically scraped off, avoiding manual peeling of the residue.

[0033] Working principle: Place the injection molding machine nozzle to be cleaned on the support block 8 of the clamping mechanism inside the mounting frame 1, with the thicker flow channel at one end of the nozzle facing the reserved hole 7. Start the first cylinder 6 to push the pressure plate 3 to slide down along the guide rod 5 until the support groove 18 at the bottom of the pressure plate 3 and the support groove 18 at the top of the support block 8 together wrap around the outer wall of the nozzle, clamping the nozzle to ensure that the nozzle does not deviate or shake during the cleaning process.

[0034] The first flame gun 2 and the second flame gun 4 of the heating mechanism are activated. The first flame gun 2 heats the lower part of the outer wall of the nozzle from the side of the support block 8, and the second flame gun 4 heats the upper part of the outer wall of the nozzle from the side of the pressure plate 3, so that the plastic remaining in the nozzle flow channel gradually softens.

[0035] After the plastic softens, the second cylinder 10 of the drive assembly is activated. The cylinder output end drives the insertion rod 12 to move horizontally through the second connecting plate 17 and the first connecting plate 11. The insertion rod 12 first passes through the reserved hole 7 on the side wall of the mounting bracket 1. The reserved hole 7 ensures that the insertion rod 12 is coaxial with the nozzle flow channel. Then it is inserted into the nozzle flow channel and makes close contact with the softened plastic. At the same time, the second cylinder 10 drives the second connecting plate 17 to move. The second connecting plate 17 pushes the unloading plate 16 to slide along the slide rod 14 and compresses the spring 15.

[0036] After the material is cleaned, the second cylinder 10 is started in reverse, which drives the insert rod 12 to exit from the nozzle flow channel. During the exit of the insert rod 12, the plastic is brought out. Under the elastic force of the spring 15, the unloading plate 16 slides to the end of the mounting groove 1301. At this time, the unloading plate 16 is restricted and blocks the pulled-out plastic, pushing the plastic out of the insert rod 12.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A nozzle cleaning device for an injection molding machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a clamping mechanism, a heating mechanism and a driving component. The clamping mechanism is fixedly installed on the inner side of the mounting frame (1) and is used to clamp and fix the injection molding machine nozzle. The heating mechanism is located in the clamping area of ​​the clamping mechanism and is used to heat the injection molding machine nozzle. The driving component is fixedly installed on the mounting frame (1). The output end of the drive assembly is connected to a plug rod (12). A reserved hole (7) coaxial with the plug rod (12) is provided on the side wall of the mounting bracket (1). The drive assembly is used to drive the plug rod (12) to move horizontally, so that the plug rod (12) passes through the reserved hole (7) and the flow channel of the injection molding machine nozzle fixed on the clamping mechanism in sequence.

2. The injection molding machine nozzle cleaning device according to claim 1, characterized in that: The clamping mechanism includes two symmetrically arranged support blocks (8), and the inner wall of the mounting frame (1) is fixedly connected to a mounting plate (101). The support blocks (8) are fixedly connected to the top of the mounting plate (101).

3. The injection molding machine nozzle cleaning device according to claim 2, characterized in that: The clamping mechanism also includes a pressure plate (3), which is located inside the mounting frame (1). The bottom ends of the pressure plate (3) and the top of the support block (8) are provided with support grooves (18). The top of the mounting frame (1) is fixedly connected to a first cylinder (6). The output end of the first cylinder (6) passes through the mounting frame (1) and extends to its inner side. The output end of the first cylinder (6) is fixedly connected to the top of the pressure plate (3).

4. The injection molding machine nozzle cleaning device according to claim 3, characterized in that: The top of the pressure plate (3) is fixedly connected to two guide rods (5), the top of the guide rods (5) passing through the mounting bracket (1) and slidingly connected to it.

5. The injection molding machine nozzle cleaning device according to claim 4, characterized in that: The heating mechanism includes multiple first flame guns (2) and second flame guns (4). The first flame guns (2) are fixedly connected to the inner wall of the mounting plate (101), and the second flame guns (4) are fixedly connected to the pressure plate (3).

6. The injection molding machine nozzle cleaning device according to claim 5, characterized in that: The drive assembly includes a second cylinder (10) and a first connecting plate (11). The inner wall of the mounting bracket (1) has a mounting cavity (9). The second cylinder (10) is fixedly connected to the inner wall of the mounting cavity (9). The first connecting plate (11) is fixedly connected to the second cylinder (10) and the insertion rod (12) respectively. The output end of the second cylinder (10) is fixedly connected to the second connecting plate (17). The second connecting plate (17) is fixedly connected to the insertion rod (12).

7. The injection molding machine nozzle cleaning device according to claim 6, characterized in that: The mounting bracket (1) has a fixed plate (13) fixedly connected to its outer wall. The fixed plate (13) has a mounting groove (1301) on its top. The mounting groove (1301) has a sliding rod (14) fixedly connected to its inner wall. The sliding rod (14) has a spring (15) sleeved on its outer wall. The sliding rod (14) has a discharge plate (16) slidably connected to its outer wall. The end of the insert rod (12) passes through the discharge plate (16) and is slidably connected to it.

8. The injection molding machine nozzle cleaning device according to claim 7, characterized in that: One end of the spring (15) is fixedly connected to the unloading plate (16), and the other end of the spring (15) is fixedly connected to the fixing plate (13).

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