Injection molding nozzle of injection molding machine

Abstract

The utility model discloses an injection molding nozzle of an injection molding machine, which comprises an injection molding nozzle upper shell and an injection molding nozzle lower shell, and the lower part of the outer side wall of the injection molding nozzle upper shell is connected with the injection molding nozzle lower shell. In this way, in the using process, along with work of an injection molding machine, the cleaning scraping piece is matched with the conical limiting block, the connecting block body, the magnetic attraction block and other parts can move up and down in the injection molding nozzle upper shell and the injection molding nozzle lower shell, and in the moving process, an injection molding opening in the bottom end of the injection molding nozzle lower shell can be cleaned through the cleaning scraping piece; in this way, attachment, generated by injection molding, of the injection molding opening in the bottom end of the lower shell of the injection molding nozzle can be effectively cleaned, the trouble of the injection molding opening is solved, meanwhile, the problems that due to long-term use of the injection molding opening, the inner diameter of the injection molding opening is decreased, and injection molding flow measurement is inaccurate are solved, and the practicability and convenience of the device are improved.

Description

Technical Field

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

[0002] The nozzle is a device used for injection molds in the field of injection molding. The molten plastic is injected into the mold through the nozzle, and the plastic cools down in the mold to produce plastic products.

[0003] After searching, it is found that a Chinese patent document discloses an injection nozzle for an injection molding machine (Announcement No.: CN215703579U). The utility model relates to the field of injection molding technology and discloses an injection nozzle for an injection molding machine, including a tube body; the injection channel in the tube body is set as an input channel and an output channel; an ejector is inserted into the injection channel, the first end of the ejector extends out of the outlet of the tube body, and a seal that cooperates with the sealing platform is connected to the ejector; the seal is connected to a compression spring for pushing the seal to engage with the sealing platform to form a sealing mechanism. By applying the technical solution of the utility model, the preload force of the compression spring can promote the seal to engage with the sealing platform with the help of the ejector to achieve the effect of sealing. When injection molding is required, the first end of the ejector overcomes the preload force of the compression spring and retracts into the tube body. At this time, the seal is separated from the sealing platform, and the molten raw material can pass through the sealing mechanism here and then be output to the outside through the output channel. After the injection molding is completed, the first end of the ejector extends and resets under the action of the compression spring; at this time, the sealing state is automatically restored, and the molten raw material will not overflow, but there are still the following defects:

[0004] The above-mentioned injection molding nozzle realizes rapid engagement and separation of the seal and the sealing platform, has a short response time, can seal the output channel and the outlet in time, avoids overflow, and circumvents the various disadvantages caused by the overflow problem. However, during use, the injection molding nozzle is often blocked in the injection molding industry, which is normal and common. If the injection molding nozzle is blocked during use, it will cause inconvenience in the injection molding process and requires manual cleaning. Utility Model Content

[0005] The utility model aims to provide an injection molding nozzle for an injection molding machine, so as to solve the problem raised in the above-mentioned background technology that during use, the injection molding nozzle is often blocked in the injection molding industry, which is also a normal and common thing. If the injection molding nozzle is blocked during use, it will cause inconvenience in the injection molding process and require manual cleaning.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection nozzle of an injection molding machine, comprising an injection nozzle upper shell and an injection nozzle lower shell, the injection nozzle lower shell is connected to the lower outer wall of the injection nozzle upper shell, a conical limit block is abutted at the lower inner part of the injection nozzle lower shell, a magnetic block is fixedly installed at the top of the conical limit block through a connecting block body, a threaded connecting groove is installed at the bottom end of the conical limit block, a threaded connecting block is threadedly connected to the inner side wall of the threaded connecting groove, a cleaning scraper is fixedly connected to the bottom end of the threaded connecting block, and the cleaning scraper extends to the outside of the bottom end of the injection nozzle lower shell.

[0007] Preferably, the lower part of the outer wall of the upper shell of the injection nozzle is threadedly connected to the outer wall of the lower shell of the injection nozzle, and the lower part of the outer wall of the upper shell of the injection nozzle and the outer wall of the lower shell of the injection nozzle are both threaded structures, and the conical limit block, connecting block body, magnetic block, threaded connecting block and cleaning scraper are all hollow structures.

[0008] Preferably, an electromagnetic block is fixedly installed on the inner top of the upper shell of the injection nozzle, a guide sleeve is installed at equal intervals on the bottom end of the electromagnetic block, a return spring is fixedly installed on the inner top of the guide sleeve, a guide sleeve rod is fixedly installed on the bottom end of the return spring, the bottom end of the guide sleeve rod is connected to the top of the resistance block, and the resistance block and the electromagnetic block are both hollow structures.

[0009] Preferably, a snap-in groove is fixedly connected below the outer side wall of the lower shell of the injection nozzle, a male adsorption magnetic block is inlaid on the inner top of the snap-in groove, the bottom end of the male adsorption magnetic block is magnetically attracted to the top of the female adsorption magnetic block, the bottom end of the female adsorption magnetic block is fixedly connected to a snap-in block, the bottom end of the snap-in block is installed with an installation shell through the connecting block body, and the installation shell is snap-connected to the snap-in groove through the snap-in block.

[0010] Preferably, an inner cavity for installing a liquid pipe is opened inside the installation shell, an electric heating pipe is installed inside the liquid pipe, the outer wall of the liquid pipe is coated with an explosion-proof coating, and a graphene heat conductive sheet is installed on the inner wall of the installation shell, and the outer wall of the graphene heat conductive sheet is tightly fitted under the outer wall of the lower shell of the injection nozzle.

[0011] Preferably, a connection limit block is installed at the top of the injection nozzle upper shell, a threaded connection block is installed at the top of the connection limit block, a sealing gasket is tightly fitted at the top of the connection limit block, and the top of the injection nozzle upper shell, the connection limit block and the interior of the connection limit block are all provided with connecting holes of the same size.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting the cleaning scraper, during use, as the injection molding machine works, the cleaning scraper cooperates with the conical limit block, the connecting block body, the magnetic block and other components to move up and down inside the upper shell and the lower shell of the injection nozzle, and during the movement, the injection port at the bottom of the lower shell of the injection nozzle can be cleaned by the cleaning scraper, which can effectively clean the attachment caused by injection molding at the injection port at the bottom of the lower shell of the injection nozzle, solve the problem of injection port, and avoid the problem of inaccurate injection flow measurement caused by the reduction of the inner diameter of the injection port due to long-term use of the injection port, thereby improving the practicability and convenience of the device.

[0014] 2. By setting up the electric heating tube, during the operation of the device, the electric heating tube is connected to the power supply and works, so that the electric heating tube heats the liquid in the liquid tube and heats the liquid to a suitable temperature, and then transfers the heat to the graphene heat conductive sheet to the lower side wall of the lower shell of the injection nozzle. In this way, during use, the solidification of the injection liquid below the outer side wall of the lower shell of the injection nozzle can be effectively avoided, which may cause the bottom end of the lower shell of the injection nozzle to be blocked, causing the trouble of replacement. At the same time, it also ensures the fluidity of the injection liquid, further improving the practicality and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal parts structure of the injection nozzle upper shell and the injection nozzle lower shell in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the combined parts of the conical limit block, the connecting block body, the magnetic suction block, the threaded connecting groove, the threaded connecting block and the cleaning scraper in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal parts structure of the housing installed in the utility model;

[0019] Figure 5 Practical Figure 1 A part of the enlarged parts structure diagram;

[0020] Figure 6 Practical Figure 2 The enlarged schematic diagram of the part structure is shown in Part B.

[0021] In the figure: 1. Injection nozzle upper shell; 2. Injection nozzle lower shell; 3. Conical limit block; 4. Connecting block body; 5. Magnetic block; 6. Threaded connecting groove; 7. Threaded connecting block; 8. Cleaning scraper; 9. Electromagnetic block; 10. Guide sleeve; 11. Reset spring; 12. Guide sleeve rod; 13. Resistance block; 14. Snap-in groove; 15. Male adsorption magnetic block; 16. Female adsorption magnetic block; 17. Snap-in block; 18. Connecting block body; 19. Mounting shell; 20. Liquid pipe; 21. Electric heating tube; 22. Explosion-proof coating; 23. Graphene thermal conductive sheet; 24. Connection limit block; 25. Threaded connecting block; 26. Sealing gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-6 The utility model provides an injection molding nozzle of an injection molding machine, comprising an injection molding nozzle upper shell 1 and an injection molding nozzle lower shell 2. The injection molding nozzle lower shell 2 is connected to the injection molding nozzle upper shell 1 at the lower outer wall, and a conical limiting block 3 is abutted at the lower inner part of the injection molding nozzle lower shell 2. The top of the conical limiting block 3 is fixedly installed with a magnetic suction block 5 through a connecting block body 4. A threaded connecting groove 6 is installed at the bottom end of the conical limiting block 3. The inner wall of the threaded connecting groove 6 is threadedly connected with a threaded connecting block 7. A cleaning scraper 8 is fixedly connected to the bottom end of the threaded connecting block 7. The cleaning scraper 8 extends to the outside of the bottom end of the injection molding nozzle lower shell 2. Through the cleaning scraper 8, the cleaning scraper 8 is arranged. In the process of use, as the injection molding machine works, the cleaning scraper 8 cooperates with the conical limiting block 3, the connecting block body 4 and the magnetic suction block 5 and other components to move up and down inside the injection molding nozzle upper shell 1 and the injection molding nozzle lower shell 2. In this way, the cleaning scraper 8 can be used to clean the injection molding port at the bottom end of the injection molding nozzle lower shell 2 during the activity.

[0024] The lower part of the outer wall of the upper shell 1 of the injection nozzle is threadedly connected to the outer wall of the lower shell 2 of the injection nozzle, and the lower part of the outer wall of the upper shell 1 of the injection nozzle and the outer wall of the lower shell 2 of the injection nozzle are both arranged with threaded structures, and the conical limit block 3, the connecting block body 4, the magnetic block 5, the threaded connecting block 7 and the cleaning scraper 8 are all arranged with hollow structures. Because the lower part of the outer wall of the upper shell 1 of the injection nozzle is threadedly connected to the outer wall of the lower shell 2 of the injection nozzle, the upper shell 1 of the injection nozzle and the lower shell 2 of the injection nozzle can be quickly disassembled and assembled.

[0025] An electromagnetic block 9 is fixedly installed at the top of the inner part of the upper shell 1 of the injection nozzle, and a guide sleeve 10 is installed at an equal interval at the bottom end of the electromagnetic block 9. A return spring 11 is fixedly installed at the top of the inner part of the guide sleeve 10, and a guide sleeve rod 12 is fixedly installed at the bottom end of the return spring 11. The bottom end of the guide sleeve rod 12 is connected to the top of the resistance block 13. The resistance block 13 and the electromagnetic block 9 are both hollow structures. Through the set electromagnetic block 9, the electromagnetic block 9 is connected to the injection molding machine through the transmission line during use. When the injection molding machine performs injection molding, the electromagnetic block 9 works synchronously. When the electromagnetic block 9 is energized, the conical limit block 3, the connecting block body 4 and the magnetic suction block 5 and other components are adsorbed, and the return spring 11 is retracted after adsorption. When the injection molding machine is completed, the electromagnetic block 9 is powered off, so that the return spring 11 is reset, and the conical limit block 3, the connecting block body 4 and the magnetic suction block 5 and other components are moved downward by inertia and the pressure of the return spring 11.

[0026] A snap-in groove 14 is fixedly connected to the lower side wall of the lower shell 2 of the injection nozzle, and a male adsorption magnetic block 15 is inlaid on the inner top of the snap-in groove 14. The bottom end of the male adsorption magnetic block 15 is magnetically attracted to the top end of the female adsorption magnetic block 16, and the bottom end of the female adsorption magnetic block 16 is fixedly connected to a snap-in block 17. The bottom end of the snap-in block 17 is installed with a mounting shell 19 through a connecting block body 18. The mounting shell 19 is snap-connected to the snap-in groove 14 through the snap-in block 17. The snap-in groove 14 and the snap-in block 17 are snap-fitted together, so that the lower side wall of the lower shell 2 of the injection nozzle is connected to the mounting shell 19. This makes it easy to disassemble the mounting shell 19 during use for use with other lower shells 2 of injection nozzles. At the same time, when the snap-in groove 14 and the snap-in block 17 are snap-fitted, the bottom end of the male adsorption magnetic block 15 is magnetically attracted to the top end of the female adsorption magnetic block 16, which further improves the stability after connection.

[0027] An inner cavity for installing a liquid pipe 20 is provided inside the installation shell 19, an electric heating pipe 21 is installed inside the liquid pipe 20, the outer wall of the liquid pipe 20 is coated with an explosion-proof coating 22, and a graphene heat conductive sheet 23 is installed on the inner wall of the installation shell 19, the outer wall of the graphene heat conductive sheet 23 is tightly fitted with the lower outer wall of the lower shell 2 of the injection nozzle, through the set electric heating pipe 21, in the process of operation of the device, the electric heating pipe 21 is connected to the power supply and works, so that the electric heating pipe 21 heats the liquid in the liquid pipe 20 and heats the liquid to a suitable temperature, so that the heat is transferred to the graphene heat conductive sheet 23, and then transferred to the lower outer wall of the lower shell 2 of the injection nozzle by the graphene heat conductive sheet 23.

[0028] A connecting limit block 24 is installed at the top of the injection nozzle upper shell 1, a threaded connecting block 25 is installed at the top of the connecting limit block 24, and a sealing gasket 26 is tightly fitted at the top of the connecting limit block 24. The top of the injection nozzle upper shell 1, the connecting limit block 24 and the interior of the connecting limit block 24 are all provided with connecting holes of the same size. Through the provided threaded connecting block 25, the injection nozzle upper shell 1 is connected to the injection molding machine in conjunction with the threaded connecting block 25, and the sealing gasket 26 is used to improve the sealing performance of the connection between the injection nozzle upper shell 1 and the injection molding machine.

[0029] When the embodiment of the present application is in use: first, the threaded connection block 25 is set, so that the upper shell 1 of the injection nozzle is connected to the injection molding machine in conjunction with the threaded connection block 25, and the sealing gasket 26 is used to make the sealing of the connection between the upper shell 1 of the injection nozzle and the injection molding machine better. Secondly, the electromagnetic block 9 is set, so that during use, the electromagnetic block 9 is connected to the injection molding machine through the transmission line. When the injection molding machine performs the injection molding operation, the electromagnetic block 9 works synchronously. When the electromagnetic block 9 is energized, the conical limit block 3, the connection block body 4, the magnetic suction block 5 and other components are adsorbed , and after adsorption, the return spring 11 is retracted. When the injection molding machine is completed, the electromagnetic block 9 is powered off, so that the return spring 11 is reset. Through inertia and the pressure of the return spring 11, the conical limit block 3, the connecting block body 4 and the magnetic block 5 and other components move downward, and then through the provided cleaning scraper 8, during use, as the injection molding machine works, the cleaning scraper 8 cooperates with the conical limit block 3, the connecting block body 4 and the magnetic block 5 and other components to move up and down inside the injection nozzle upper shell 1 and the injection nozzle lower shell 2, so that during the activity process In the process, the cleaning scraper 8 can be used to clean the injection port at the bottom of the lower shell 2 of the injection nozzle, and finally the electric heating tube 21 is set. In this way, during the operation of the device, the electric heating tube 21 is connected to the power supply and works, so that the electric heating tube 21 heats the liquid in the liquid tube 20 and heats the liquid to a suitable temperature, so that the heat is transferred to the graphene heat conductive sheet 23, and then the graphene heat conductive sheet 23 is transferred to the lower side wall of the lower shell 2 of the injection nozzle. In this way, an injection molding nozzle of an injection molding machine is used. It should be noted that the utility model is an injection molding nozzle of an injection molding machine, and the components are all universal standard parts or components known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the above-mentioned working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in the art.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. An injection molding nozzle for an injection molding machine, comprising an injection molding nozzle upper housing (1) and an injection molding nozzle lower housing (2), characterized in that: The lower shell (2) of the injection nozzle is connected to the lower outer wall of the upper shell (1) of the injection nozzle, and the lower inner part of the lower shell (2) of the injection nozzle abuts against a conical limit block (3). The top of the conical limit block (3) is fixedly mounted with a magnetic block (5) through a connecting block body (4). The bottom end of the conical limit block (3) is installed with a threaded connecting groove (6), and the inner wall of the threaded connecting groove (6) is threadedly connected with a threaded connecting block (7). The bottom end of the threaded connecting block (7) is fixedly connected with a cleaning scraper (8), and the cleaning scraper (8) extends to the outside of the bottom end of the lower shell (2) of the injection nozzle.

2. The injection molding nozzle of an injection molding machine according to claim 1, characterized in that: The lower side of the outer wall of the upper shell (1) of the injection nozzle is threadedly connected to the outer wall of the lower shell (2) of the injection nozzle, and the lower side of the outer wall of the upper shell (1) of the injection nozzle and the outer wall of the lower shell (2) of the injection nozzle are both arranged in a threaded structure, and the conical limit block (3), the connecting block body (4), the magnetic suction block (5), the threaded connecting block (7) and the cleaning scraper (8) are all arranged in a hollow structure.

3. The injection molding nozzle of an injection molding machine according to claim 1, characterized in that: An electromagnetic block (9) is fixedly mounted on the top of the injection nozzle upper shell (1), a guide sleeve (10) is evenly spaced on the bottom of the electromagnetic block (9), a return spring (11) is fixedly mounted on the top of the guide sleeve (10), a guide sleeve rod (12) is fixedly mounted on the bottom of the return spring (11), the bottom end of the guide sleeve rod (12) is connected to the top of a resistance block (13), and the resistance block (13) and the electromagnetic block (9) are both hollow structures.

4. The injection molding nozzle of an injection molding machine according to claim 1, characterized in that: A snap-in groove (14) is fixedly connected below the outer wall of the lower shell (2) of the injection nozzle, and a male adsorption magnetic block (15) is embedded in the inner top of the snap-in groove (14). The bottom end of the male adsorption magnetic block (15) is magnetically attracted to the top end of the female adsorption magnetic block (16), and the bottom end of the female adsorption magnetic block (16) is fixedly connected to a snap-in block (17). The bottom end of the snap-in block (17) is installed with a mounting shell (19) through a connecting block body (18), and the mounting shell (19) is snap-connected with the snap-in groove (14) through the snap-in block (17).

5. The injection molding nozzle of an injection molding machine according to claim 4, characterized in that: The installation shell (19) has an inner cavity for installing a liquid pipe (20), an electric heating pipe (21) is installed inside the liquid pipe (20), the outer wall of the liquid pipe (20) is coated with an explosion-proof coating (22), and a graphene heat conductive sheet (23) is installed on the inner wall of the installation shell (19), and the outer wall of the graphene heat conductive sheet (23) is tightly fitted below the outer wall of the lower shell (2) of the injection nozzle.

6. The injection molding nozzle of an injection molding machine according to claim 1, characterized in that: A connection limit block (24) is installed at the top end of the injection nozzle upper shell (1), a threaded connection block (25) is installed at the top end of the connection limit block (24), a sealing gasket (26) is tightly fitted at the top end of the connection limit block (24), and the top end of the injection nozzle upper shell (1), the connection limit block (24) and the interior of the connection limit block (24) are all provided with connecting holes of the same size.

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