Hot nozzle structure capable of automatically sealing needle

Abstract

The invention relates to a hot nozzle structure capable of automatically sealing a needle, relates to the technical field of hot runner molds, and aims to overcome the defect that a sizing material overflows from a main nozzle when a gun barrel is separated from the main nozzle in an existing hot nozzle structure. The hot nozzle structure capable of automatically sealing the needle comprises a splitter plate, the main nozzle, a valve needle and a spring device, the splitter plate is used for splitting a sizing material so as to simultaneously perform injection molding at different positions, the main injection nozzle is arranged on one side of the splitter plate, the main injection nozzle is used for being in butt joint with a gun barrel, receiving the sizing material injected from the gun barrel and enabling the sizing material to flow into the splitter plate, and the valve needle is arranged in the main injection nozzle and penetrates through the splitter plate in the transverse direction of the splitter plate; the valve needle is used for closing or opening the main nozzle, the spring device is arranged on the side, away from the main nozzle, of the splitter plate, the spring device and the main nozzle are oppositely arranged, and the spring device is used for enabling the valve needle to reset to close the main nozzle when the gun barrel is separated from the main nozzle.

Description

Technical Field

[0001] The present application relates to the technical field of hot runner molds, and in particular to a hot nozzle structure capable of automatically sealing a needle. Background Art

[0002] During the injection molding process through the hot runner mold, the rubber needs to be injected from the main nozzle into the hot runner system through the barrel. When the barrel leaves the main nozzle, the rubber in the main nozzle is easy to overflow due to the pressure, which affects the next injection molding and causes a low yield rate of the finished product.

[0003] With respect to the above-mentioned related technologies, the existing hot nozzle structure has the defect that the rubber material overflows from the main nozzle when the barrel is separated from the main nozzle. Summary of the invention

[0004] The present application provides a hot nozzle structure capable of automatically sealing the needle, so as to solve the defect of the existing hot nozzle structure that the rubber material overflows from the main nozzle when the barrel is separated from the main nozzle.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is: to provide a hot nozzle structure capable of automatically sealing the needle, the hot nozzle structure capable of automatically sealing the needle comprises: Diverter plate, used to divert the rubber material so that it can be injected at different positions at the same time; A main nozzle is arranged on one side of the diverter plate, and is used to connect with the barrel, receive the rubber material injected from the barrel, and make the rubber material flow into the diverter plate; A valve needle is arranged in the main nozzle and penetrates the diverter plate in the transverse direction of the diverter plate, and the valve needle is used to close or open the main nozzle; A spring device is arranged on the side of the diverter plate away from the main nozzle, and the spring device is arranged opposite to the main nozzle. The spring device is used to reset the valve needle to close the main nozzle when the barrel is separated from the main nozzle.

[0006] By adopting the above technical solution and arranging the valve needle and the spring device, when the barrel abuts against the main nozzle, the barrel injects the rubber into the main nozzle, and the pressure of the rubber pushes the valve needle toward the main nozzle, thereby opening the main nozzle to allow the rubber to flow in. When the barrel leaves the main nozzle, the spring device resets the valve needle, thereby causing the valve needle to close the main nozzle to prevent the rubber from overflowing from the main nozzle.

[0007] Preferably, the spring device further comprises: A plug-in seat is plugged and arranged on the side of the diverter plate away from the main nozzle. A through hole is arranged on the plug-in seat and penetrates the plug-in seat. The through hole is used for the valve needle to pass through and slide.

[0008] By adopting the above technical solution and providing the socket, since the valve needle is assembled in the socket, the stability of the valve needle when moving can be improved.

[0009] Preferably, the spring device further comprises: The mounting seat is assembled on the side of the diverter plate away from the main nozzle by screws, and the mounting seat includes a first platform, a second platform and a third platform which are integrally connected in sequence from the side close to the diverter plate to the side away from the diverter plate, the radial dimension of the first platform is larger than the radial dimension of the second platform, and the radial dimension of the second platform is larger than the radial dimension of the third platform.

[0010] By adopting the above technical solution and setting the mounting seat, structural support is provided for the spring device.

[0011] Preferably, the spring device further includes a first accommodating chamber, a second accommodating chamber and a third accommodating chamber, the first accommodating chamber is located in the first platform, the second accommodating chamber is located in the second platform, the third accommodating chamber is located in the third platform, the inner radial dimension of the first accommodating chamber is larger than the radial dimension of the second accommodating chamber, and the inner radial dimension of the second accommodating chamber is larger than the radial dimension of the third accommodating chamber.

[0012] By adopting the above technical solution, the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are arranged to provide the spring device with an accommodating space for assembling other parts.

[0013] Preferably, a clamping block is provided on one end of the valve needle away from the main nozzle.

[0014] Preferably, the spring device further comprises: The push block is provided with a clamping groove, the push block is assembled on the clamping block through the clamping groove, and the push block is driven by the valve needle to move in the second accommodating cavity.

[0015] Preferably, the spring device further comprises: A push spring is arranged in the third accommodating cavity, one end of the push spring abuts against the inner wall of the third accommodating cavity, and the other end of the push spring abuts against the push block.

[0016] By adopting the above technical solution, through the arrangement of the push block, the clamping block and the push spring, the push block is assembled on the clamping block through the clamping groove, so that the push block is driven to move when the valve needle moves, and the main nozzle is opened when the valve needle moves inward. At the same time, the push block compresses the push spring, and when the barrel is separated from the main nozzle, the push spring is released, thereby pushing the valve needle back to its original position to close the main nozzle.

[0017] Preferably, the spring device further comprises: The push column is arranged on the side of the push block away from the valve needle, and the push block is also inserted in the push spring.

[0018] By adopting the above technical solution and setting the push column, the stability of the push spring assembly is improved, preventing the push spring from deflecting when being compressed or reset.

[0019] Preferably, an arc-shaped interface is provided on one end of the main nozzle close to the barrel, and the arc-shaped interface is used for docking with the barrel.

[0020] By adopting the above technical solution and setting the arc-shaped interface, the safety and accuracy of the connection between the barrel and the main nozzle are improved.

[0021] The beneficial effect of the present application is that the hot nozzle structure capable of automatically sealing the needle provided by the present application can automatically seal the needle of the main nozzle when the barrel is separated from the main nozzle through the arrangement of the valve needle and the spring device, thereby preventing the rubber from overflowing from the main nozzle, thereby improving the safety of the equipment and the yield rate of the injection molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a schematic plan view of the hot nozzle structure capable of automatically sealing the needle provided in an embodiment of the present application.

[0023] Explanation of the reference numerals: 100, diverter plate; 110, main nozzle; 111, arc-shaped interface; 120, barrel; 130, valve needle; 131, clamping block; 140, plug-in seat; 150, mounting seat; 151, first platform; 152, second platform; 153, third platform; 160, push block; 170, push spring; 180, push column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), such directional indications are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] See also Figure 1 As shown, the present application provides a hot nozzle structure that can automatically seal the needle. The hot nozzle structure that can automatically seal the needle includes a diverter plate 100, a main nozzle 110, a valve needle 130, and a spring device. The diverter plate 100 is used to divert the rubber material so as to perform injection molding at different positions at the same time. The main nozzle 110 is arranged on one side of the diverter plate 100. The main nozzle 110 is used to dock with the barrel 120, receive the rubber material injected from the barrel 120, and make the rubber material flow into the diverter plate 100. The valve needle 130 is arranged in the main nozzle 110 and penetrates the diverter plate 100 in the lateral direction of the diverter plate 100. The valve needle 130 is used to close or open the main nozzle 110. The spring device is arranged on the side of the diverter plate 100 away from the main nozzle 110, and the spring device is arranged opposite to the main nozzle 110. The spring device is used to reset the valve needle 130 to close the main nozzle 110 when the barrel 120 is separated from the main nozzle 110.

[0028] Through the arrangement of the valve needle 130 and the spring device, when the barrel 120 abuts against the main nozzle 110, the barrel 120 injects rubber into the main nozzle 110, and the pressure of the rubber pushes the valve needle 130 toward the main nozzle 110, thereby opening the main nozzle 110 to allow the rubber to flow in. When the barrel 120 leaves the main nozzle 110, the spring device resets the valve needle 130, thereby closing the main nozzle 110 and preventing the rubber from overflowing from the main nozzle 110.

[0029] See also Figure 1 As shown, the spring device also includes a socket 140, which is plugged and arranged on the side of the diverter plate 100 away from the main nozzle 110. The socket 140 is provided with a through hole that penetrates the socket 140. The through hole is used to allow the valve needle 130 to pass and slide. Through the setting of the socket 140, since the valve needle 130 is assembled in the socket 140, it is convenient to improve the stability of the valve needle 130 when it moves.

[0030] The spring device also includes a mounting seat 150, which is assembled on the side of the diverter plate 100 away from the main nozzle 110 by screws. The mounting seat 150 includes a first platform 151, a second platform 152 and a third platform 153 which are integrally connected in sequence from the side close to the diverter plate 100 to the side away from the diverter plate 100. The radial dimension of the first platform 151 is greater than the radial dimension of the second platform 152, and the radial dimension of the second platform 152 is greater than the radial dimension of the third platform 153. The setting of the mounting seat 150 provides structural support for the spring device.

[0031] The spring device also includes a first accommodating chamber, a second accommodating chamber and a third accommodating chamber. The first accommodating chamber is located in the first platform 151, the second accommodating chamber is located in the second platform 152, and the third accommodating chamber is located in the third platform 153. The radial dimension of the first accommodating chamber is greater than the radial dimension of the second accommodating chamber, and the radial dimension of the second accommodating chamber is greater than the radial dimension of the third accommodating chamber. The arrangement of the first accommodating chamber, the second accommodating chamber and the third accommodating chamber provides the spring device with an accommodating space for assembling other parts.

[0032] A clamping block 131 is disposed on one end of the valve needle 130 away from the main nozzle 110 .

[0033] The spring device also includes a push block 160 and a push spring 170. The push block 160 is provided with a clamping groove. The push block 160 is assembled on the clamping block 131 through the clamping groove. The push block 160 is driven by the valve needle 130 to move in the second accommodating chamber. The push spring 170 is arranged in the third accommodating chamber. One end of the push spring 170 abuts against the inner side wall of the third accommodating chamber, and the other end of the push spring 170 abuts against the push block 160. 60. The arrangement of the clamping block 131 and the push spring 170. The push block 160 is assembled on the clamping block 131 through the clamping groove, so that when the valve needle 130 moves, the push block 160 is driven to move. When the valve needle 130 moves inward, the main nozzle 110 is opened. At the same time, the push block 160 compresses the push spring 170. When the barrel 120 is separated from the main nozzle 110, the push spring 170 is released, thereby pushing the valve needle 130 back to its original position to close the main nozzle 110.

[0034] The spring device also includes a push column 180, which is arranged on the side of the push block 160 away from the valve needle 130. The push block 160 is also inserted into the push spring 170. The setting of the push column 180 improves the stability of the assembly of the push spring 170 and prevents the push spring 170 from deflecting during compression or resetting.

[0035] An arc-shaped interface 111 is provided on one end of the main nozzle 110 close to the barrel 120 , and the arc-shaped interface 111 is used for docking with the barrel 120 . The provision of the arc-shaped interface 111 improves the safety and accuracy of docking between the barrel 120 and the main nozzle 110 .

[0036] In summary, the hot nozzle structure capable of automatically sealing the needle provided by the present application can automatically seal the needle of the main nozzle 110 when the barrel 120 is separated from the main nozzle 110 through the arrangement of the valve needle 130 and the spring device, thereby preventing the rubber from overflowing from the main nozzle 110, thereby improving the safety of the equipment and the yield rate of the injection molded product.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot nozzle structure capable of automatically sealing the needle, characterized in that: The hot nozzle structure capable of automatically sealing the needle comprises: A splitter plate (100) is used to split the rubber material so as to perform injection molding at different positions at the same time; A main nozzle (110) is arranged on one side of the diverter plate (100), and the main nozzle (110) is used to dock with the barrel (120) and receive the rubber material injected from the barrel (120) so that the rubber material flows into the diverter plate (100); a valve needle (130) disposed in the main nozzle (110) and penetrating the diverter plate (100) in a transverse direction of the diverter plate (100), the valve needle (130) being used to close or open the main nozzle (110); A spring device is arranged on a side of the diverter plate (100) away from the main nozzle (110), and the spring device is arranged opposite to the main nozzle (110). The spring device is used to reset the valve needle (130) to close the main nozzle (110) when the barrel (120) is separated from the main nozzle (110).

2. The hot nozzle structure capable of automatically sealing needles according to claim 1, characterized in that: The spring device also includes: A plug-in seat (140) is plugged and arranged on a side of the diverter plate (100) away from the main nozzle (110), and a through hole is arranged on the plug-in seat (140) and penetrates the plug-in seat (140), and the through hole is used to allow the valve needle (130) to pass through and slide.

3. The hot nozzle structure capable of automatically sealing needles according to claim 2, characterized in that: The spring device also includes: The mounting seat (150) is assembled to a side of the diverter plate (100) away from the main nozzle (110) by means of screws. The mounting seat (150) comprises a first platform (151), a second platform (152) and a third platform (153) which are integrally connected in sequence from a side close to the diverter plate (100) to a side away from the diverter plate (100). The radial dimension of the first platform (151) is greater than the radial dimension of the second platform (152), and the radial dimension of the second platform (152) is greater than the radial dimension of the third platform (153).

4. The hot nozzle structure capable of automatically sealing the needle according to claim 3, characterized in that: The spring device further comprises a first accommodating cavity, a second accommodating cavity and a third accommodating cavity, wherein the first accommodating cavity is located in the first platform (151), the second accommodating cavity is located in the second platform (152), and the third accommodating cavity is located in the third platform (153), and the radial dimension of the first accommodating cavity is greater than the radial dimension of the second accommodating cavity, and the radial dimension of the second accommodating cavity is greater than the radial dimension of the third accommodating cavity.

5. The hot nozzle structure capable of automatically sealing needles according to claim 4, characterized in that: A clamping block (131) is provided on one end of the valve needle (130) away from the main nozzle (110).

6. The hot nozzle structure capable of automatically sealing needles according to claim 5, characterized in that: The spring device also includes: The push block (160) is provided with a clamping groove, and the push block (160) is assembled on the clamping block (131) through the clamping groove. The push block (160) is driven by the valve needle (130) to move in the second accommodating chamber.

7. The hot nozzle structure capable of automatically sealing needles according to claim 6, characterized in that: The spring device also includes: A push spring (170) is disposed in the third accommodating cavity, one end of the push spring (170) abuts against the inner wall of the third accommodating cavity, and the other end of the push spring (170) abuts against the push block (160).

8. The hot nozzle structure capable of automatically sealing needles according to claim 7, characterized in that: The spring device also includes: The push column (180) is arranged on a side of the push block (160) away from the valve needle (130), and the push block (160) is also inserted into the push spring (170).

9. The hot nozzle structure capable of automatically sealing needles according to claim 1, characterized in that: An arc-shaped interface (111) is provided on one end of the main nozzle (110) close to the barrel (120), and the arc-shaped interface (111) is used for docking with the barrel (120).

Images