Hot runner nozzle for production of highlight plastic parts

Abstract

The utility model relates to the technical field of nozzles, in particular to a hot runner nozzle for highlight plastic part production, which comprises a guide pipe and a nozzle body, a connector is mounted on the lower surface of the guide pipe, the nozzle body is mounted on the connector in a threaded manner, and a positioning device is arranged on the surface of the nozzle body and comprises a positioning block. The positioning block is fixedly connected with the surface of the nozzle body, a positioning groove is formed in the surface of the positioning block, a protruding block is slidably connected to the inner wall of the positioning groove, a groove is formed in the lower surface of the guide pipe, auxiliary devices are arranged on the surface of the guide pipe, the number of the positioning devices is two, and the two positioning devices are symmetrically arranged. Compression springs are fixedly connected to the surfaces of the protruding blocks and located in the positioning grooves. According to the scheme, the nozzle body is effectively assisted to be installed, the situation that the nozzle body loosens and leaks is reduced, the probability of material leakage is reduced, and normal use of equipment and popularization and use of the equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to a hot runner nozzle for producing high-gloss plastic parts. Background Art

[0002] Hot runner systems are heating components used in injection molds to inject melted plastic particles into the mold cavity. Hot runner molds are a new structure that heats the runners and channels of traditional molds or three-plate molds, so that the runners and channels do not need to be removed during each molding. With the development of society, high-gloss plastic parts are often supplied with materials through hot runner nozzles during production.

[0003] The inventor has found in his daily work that most of the hot runner nozzles are currently installed by means of threaded connections. During use, they are prone to being loosened, and there are certain hidden dangers in operation. When not installed properly, the material is prone to loosening and leakage, which is not conducive to the normal use of the equipment. Improved operations are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that most hot runner nozzles are installed by means of threaded connections, which are prone to being not tightened during use, and there are certain hidden dangers in operation. When not installed properly, materials are prone to loosening and leakage, which is not conducive to the normal use of the equipment. A hot runner nozzle for the production of high-gloss plastic parts is proposed to solve the shortcomings in the prior art that most hot runner nozzles are installed by means of threaded connections, which are prone to being not tightened during use, and there are certain hidden dangers in operation. When not installed properly, materials are prone to loosening and leakage, which is not conducive to the normal use of the equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hot runner nozzle for producing high-gloss plastic parts, comprising a conduit and a nozzle body, a joint is installed on the lower surface of the conduit, the nozzle body is threadedly installed on the joint, a positioning device is arranged on the surface of the nozzle body, the positioning device comprises a positioning block, the positioning block is fixedly connected to the surface of the nozzle body, a positioning groove is provided on the surface of the positioning block, a protrusion is slidably connected to the inner wall of the positioning groove, a groove is provided on the lower surface of the conduit, and an auxiliary device is arranged on the surface of the conduit. This scheme effectively assists the installation of the nozzle body, reduces the loosening and leakage of the nozzle body, reduces the probability of material leakage, facilitates the normal use of the equipment, and facilitates the popularization of the equipment.

[0006] Preferably, there are two positioning devices, and the two positioning devices are symmetrically arranged.

[0007] Preferably, a compression spring is fixedly connected to the surface of the protrusion, and the compression spring is located in the positioning groove. The end of the compression spring away from the protrusion is fixedly connected to the inner wall of the positioning groove. The new nozzle body is buckled on the joint and rotated, and the nozzle body is then installed on the joint. During the rotation, the protrusion abuts against the surface of the catheter, and the compression spring is deformed under force. After the installation is completed, the protrusion is aligned with the groove, and then the compression spring pushes the protrusion into the groove. Then the pull rod is released, and the torsion spring drives the bracket to buckle on the positioning block, and then the equipment can be used normally.

[0008] Preferably, the surface of the protrusion is rounded to facilitate the insertion and removal of the protrusion from the groove. This solution effectively assists the installation of the nozzle body, reduces the possibility of loosening and leakage of the nozzle body, reduces the probability of material leakage, facilitates the normal use of the equipment, and facilitates the popularization of the equipment.

[0009] Preferably, the auxiliary device includes a mounting block, which is fixedly connected to the surface of the catheter, and the surface of the mounting block is rotatably connected to a rotating rod, and a bracket is fixedly connected to the rotating rod. When replacing the nozzle body, the pull rod is pulled to one side, and the pull rod then drives the bracket to rotate, and the bracket then detaches from the positioning block, and the torsion spring is deformed under force to generate elastic force, and then the nozzle body can be removed by rotating it, and a new nozzle body is buckled on the joint and rotated, and the nozzle body is then installed on the joint. During the rotation, the protrusion is against the surface of the catheter, and the compression spring is deformed under force. After the installation is completed, the protrusion is aligned with the groove, and then the compression spring pushes the protrusion into the groove, and then the pull rod is released, and the torsion spring drives the bracket to buckle on the positioning block, and then the equipment can be used normally.

[0010] Preferably, a torsion spring is sleeved on the rotating rod, and both ends of the torsion spring are fixedly connected to the surfaces of the mounting block and the bracket respectively, so as to apply a rotational force to the bracket and restrict the positioning block, thereby reducing the probability of the nozzle body becoming loose.

[0011] Preferably, a pull rod is fixedly connected to the surface of the card frame, so that the card frame can be rotated by pulling the pull rod.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when replacing the nozzle body, the pull rod is pulled to one side, and the pull rod then drives the bracket to rotate, and the bracket then detaches from the positioning block, and the torsion spring is deformed by force to generate elastic force, and then the nozzle body can be removed by rotating it, and a new nozzle body is buckled on the joint and rotated, and the nozzle body is then installed on the joint. During the rotation process, the protrusion abuts against the surface of the conduit, and the compression spring is deformed by force. After the installation is completed, the protrusion is aligned with the groove, and then the compression spring pushes the protrusion to insert into the groove, and then the pull rod is released, and the torsion spring drives the bracket to buckle on the positioning block, and then the equipment can be used normally. This solution effectively assists the installation of the nozzle body, reduces the possibility of loosening and leakage of the nozzle body, reduces the probability of material leakage, facilitates the normal use of the equipment, and facilitates the popularization of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a hot runner nozzle for producing high-gloss plastic parts;

[0015] Figure 2 The utility model provides a side view structural schematic diagram of a hot runner nozzle for producing high-gloss plastic parts;

[0016] Figure 3 The utility model proposes a schematic diagram of the explosion structure of a hot runner nozzle for producing high-gloss plastic parts;

[0017] Figure 4 The utility model proposes a hot runner nozzle for producing high-gloss plastic parts. Figure 3 A schematic diagram of the structure at A;

[0018] Figure 5 The utility model provides a structural schematic diagram of a positioning device in a hot runner nozzle for producing high-gloss plastic parts.

[0019] Legend:

[0020] 1. Conduit; 2. Nozzle body; 3. Positioning device; 31. Positioning block; 32. Positioning groove; 33. Protrusion; 34. Compression spring; 35. Groove; 4. Auxiliary device; 41. Bracket; 42. Pull rod; 43. Mounting block; 44. Turn rod; 45. Torsion spring; 5. Connector. DETAILED DESCRIPTION

[0021] See also Figure 1-5The utility model provides a technical solution: a hot runner nozzle for producing high-gloss plastic parts, including a conduit 1 and a nozzle body 2, a joint 5 is installed on the lower surface of the conduit 1, the nozzle body 2 is threadedly installed on the joint 5, and a positioning device 3 is arranged on the surface of the nozzle body 2, the positioning device 3 includes a positioning block 31, the positioning block 31 is fixedly connected to the surface of the nozzle body 2, a positioning groove 32 is provided on the surface of the positioning block 31, and a protrusion 33 is slidably connected to the inner wall of the positioning groove 32, a groove 35 is provided on the lower surface of the conduit 1, and an auxiliary device 4 is arranged on the surface of the conduit 1. This solution effectively assists the installation of the nozzle body 2, reduces the loosening and leakage of the nozzle body 2, reduces the probability of material leakage, facilitates the normal use of the equipment, and facilitates the popularization of the equipment.

[0022] Specifically, there are two positioning devices 3 , and the two positioning devices 3 are symmetrically arranged.

[0023] In this embodiment: a compression spring 34 is fixedly connected to the surface of the protrusion 33, and the compression spring 34 is located in the positioning groove 32. The end of the compression spring 34 away from the protrusion 33 is fixedly connected to the inner wall of the positioning groove 32. The new nozzle body 2 is buckled on the joint 5 and rotated. The nozzle body 2 is then installed on the joint 5. During the rotation, the protrusion 33 is abutted against the surface of the catheter 1, and the compression spring 34 is deformed by the force. After the installation is completed, the protrusion 33 is aligned with the groove 35, and then the compression spring 34 pushes the protrusion 33 to be inserted into the groove 35. Then the pull rod 42 is released, and the torsion spring 45 drives the bracket 41 to buckle on the positioning block 31, and then the equipment can be used normally.

[0024] Specifically, the surface of the protrusion 33 is rounded to facilitate the protrusion 33 to be inserted into and out of the groove 35 .

[0025] In this embodiment: the auxiliary device 4 includes a mounting block 43, which is fixedly connected to the surface of the catheter 1. The surface of the mounting block 43 is rotatably connected to a rotating rod 44, and a bracket 41 is fixedly connected to the rotating rod 44. When replacing the nozzle body 2, the pull rod 42 is pulled to one side, and the pull rod 42 then drives the bracket 41 to rotate, and the bracket 41 then breaks away from the positioning block 31, and the torsion spring 45 is deformed by force to generate elastic force, and then the nozzle body 2 can be removed by rotating it, and a new nozzle body 2 is buckled on the joint 5 and rotated, and the nozzle body 2 is then installed on the joint 5. During the rotation process, the protrusion 33 is against the surface of the catheter 1, and the compression spring 34 is deformed by force. After the installation is completed, the protrusion 33 is aligned with the groove 35, and then the compression spring 34 pushes the protrusion 33 to insert into the groove 35, and then the pull rod 42 is released, and the torsion spring 45 drives the bracket 41 to buckle on the positioning block 31, and then the equipment can be used normally.

[0026] Specifically, a torsion spring 45 is sleeved on the rotating rod 44, and the two ends of the torsion spring 45 are respectively fixedly connected to the surfaces of the mounting block 43 and the bracket 41, so as to apply a rotational force to the bracket 41 and restrict the positioning block 31, thereby reducing the probability of the nozzle body 2 becoming loose. When replacing the nozzle body 2, the pull rod 42 is pulled to one side, and the pull rod 42 then drives the bracket 41 to rotate, and the bracket 41 then detaches from the positioning block 31, and the torsion spring 45 is deformed by the force to generate elastic force, and then the nozzle body 2 can be rotated to remove it.

[0027] Specifically, a pull rod 42 is fixedly connected to the surface of the card frame 41 , so that the pull rod 42 is pulled to drive the card frame 41 to rotate.

[0028] Working principle: when replacing the nozzle body 2, pull the pull rod 42 to one side, and the pull rod 42 then drives the bracket 41 to rotate, and the bracket 41 then detaches from the positioning block 31, and the torsion spring 45 is deformed by force to generate elastic force, and then the nozzle body 2 can be removed by rotating it, and the new nozzle body 2 is buckled on the joint 5 and rotated, and the nozzle body 2 is then installed on the joint 5. During the rotation process, the protrusion 33 is against the surface of the conduit 1, and the compression spring 34 is deformed by force. After the installation is completed, the protrusion 33 is aligned with the groove 35, and then the compression spring 34 pushes the protrusion 33 to be inserted into the groove 35, and then the pull rod 42 is released, and the torsion spring 45 drives the bracket 41 to buckle on the positioning block 31, and then the equipment can be used normally. This solution effectively assists the installation of the nozzle body 2, reduces the loosening and leakage of the nozzle body 2, reduces the probability of material leakage, facilitates the normal use of the equipment, and facilitates the popularization of the equipment.

Claims

1. A hot runner nozzle for producing high-gloss plastic parts, comprising a conduit (1) and a nozzle body (2), wherein a joint (5) is installed on the lower surface of the conduit (1), and the nozzle body (2) is threadedly installed on the joint (5), characterized in that: The surface of the nozzle body (2) is provided with a positioning device (3), the positioning device (3) comprises a positioning block (31), the positioning block (31) is fixedly connected to the surface of the nozzle body (2), the surface of the positioning block (31) is provided with a positioning groove (32), the inner wall of the positioning groove (32) is slidably connected with a protrusion (33), the lower surface of the conduit (1) is provided with a groove (35), and the surface of the conduit (1) is provided with an auxiliary device (4).

2. A hot runner nozzle for producing high-gloss plastic parts according to claim 1, characterized in that: The number of the positioning devices (3) is two, and the two positioning devices (3) are symmetrically arranged.

3. A hot runner nozzle for producing high-gloss plastic parts according to claim 1, characterized in that: A compression spring (34) is fixedly connected to the surface of the protrusion (33); the compression spring (34) is located in the positioning groove (32); and one end of the compression spring (34) away from the protrusion (33) is fixedly connected to the inner wall of the positioning groove (32).

4. A hot runner nozzle for producing high-gloss plastic parts according to claim 1, characterized in that: The surface of the projection (33) is rounded.

5. The hot runner nozzle for producing high-gloss plastic parts according to claim 1, characterized in that: The auxiliary device (4) comprises a mounting block (43), the mounting block (43) being fixedly connected to the surface of the catheter (1), the surface of the mounting block (43) being rotatably connected to a rotating rod (44), and the rotating rod (44) being fixedly connected to a bracket (41).

6. A hot runner nozzle for producing high-gloss plastic parts according to claim 5, characterized in that: The rotating rod (44) is sleeved with a torsion spring (45), and the two ends of the torsion spring (45) are respectively fixedly connected to the surfaces of the mounting block (43) and the bracket (41).

7. The hot runner nozzle for producing high-gloss plastic parts according to claim 5, characterized in that: A pull rod (42) is fixedly connected to the surface of the card frame (41).

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