Anti-slobbering straight-through type injection molding nozzle structure

Abstract

The utility model discloses an anti-slobbering straight-through type injection molding nozzle structure, which particularly relates to the technical field of injection molding and mainly comprises an injection molding nozzle, one side of the injection molding nozzle is provided with an injection molding butt joint pipe, the outer wall of the injection molding nozzle is fixedly connected with a fixed support ring, and one side of the outer wall of the fixed support ring is provided with a bidirectional locking component; the bidirectional locking assembly comprises a guide frame plate arranged on one side of the outer wall of the fixed supporting ring, and the inner wall of the guide frame plate is rotationally connected with a linkage screw rod. Through the arrangement of the bidirectional locking assembly, the driving locking motor is started to drive the locking screw rod to rotate forwards in the linkage frame plate, and the second thread sleeving support and the first thread sleeving support respectively drive the two clamping arc blocks to be extruded on the outer wall of the injection molding butt joint pipe; and the first threaded sleeving support and the second threaded sleeving support both drive the clamping arc block to move transversely, connection at the joint is firmer, and the salivation prevention performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, and more specifically to an anti-drooling straight-through injection molding nozzle structure. Background Art

[0002] The anti-drooling straight-through injection nozzle structure plays an important role in the injection molding process. During the injection stage, it can form contact pressure with the main sleeve of the mold, maintain good contact between the nozzle and the sleeve, form a closed flow channel, and prevent the plastic melt from overflowing under high pressure.

[0003] In the prior art, the utility model patent of China Patent Publication No. CN212653809U discloses a new hot runner straight-through hot nozzle. The commonly used straight-through hot nozzle needs to be processed on the mold plate for installation, and its processing accuracy is high, which brings great inconvenience in installation and maintenance. It can save mold space, reduce processing costs, facilitate installation, change colors and improve product quality. However, the nozzle still has the following defects:

[0004] When the above-mentioned nozzle is used for injection molding, since the injection nozzle is docked by extrusion force during the docking process, it is difficult to tightly lock the nozzle and the injection molding docking pipe during docking, which leads to overflow and drooling of the molten liquid in the later stage. Therefore, an anti-drooling straight-through injection molding nozzle structure is provided. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anti-drooling straight-through injection molding nozzle structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-drooling straight-through injection molding nozzle structure, comprising an injection molding nozzle, one side of the injection molding nozzle is provided with an injection molding butt tube, the outer wall of the injection molding nozzle is fixedly connected with a fixed support ring, and one side of the outer wall of the fixed support ring is provided with a two-way locking assembly; the two-way locking assembly comprises a guide frame plate arranged on one side of the outer wall of the fixed support ring, and the inner wall of the guide frame plate is rotatably connected with a linkage screw, one end of the linkage screw extends to the outside of the guide frame plate and is coaxially connected with a reduction drive motor, the outer wall of the linkage screw is provided with a threaded sleeve locking block slidably connected to the guide frame plate, and the top and bottom of the threaded sleeve locking block are provided. The ends are fixedly connected with a linkage support plate, one end of the linkage support plate is welded with a linkage frame plate, the internal rotation of the linkage frame plate is connected with a locking screw, the outer wall of the locking screw is provided with a first threaded sleeve bracket and a second threaded sleeve bracket from top to bottom, the reduction drive motor is respectively fixedly connected with the plastic and injection nozzle and the guide frame plate, and the outer wall of the linkage screw is threadedly connected with the inner wall of the threaded sleeve locking block, the first threaded sleeve bracket and the second threaded sleeve bracket are both threadedly connected with the locking screw, the two threads on the outer wall of the locking screw are opposite and symmetrically arranged, and the first threaded sleeve bracket and the second threaded sleeve bracket are both vertically slidably connected with the linkage frame plate.

[0007] Preferably, the top end of the locking screw extends to above the linkage frame plate and is coaxially connected to a driving locking motor, and the driving locking motor is fixedly connected to the linkage frame plate, one end of the first threaded sleeve bracket and the second threaded sleeve bracket are fixedly connected to a clamping arc block, the other end of the injection nozzle is fixedly connected to an injection cylinder, and the injection cylinder and the injection nozzle are communicated.

[0008] According to the above technical scheme, the driving locking motor is started to drive the locking screw to rotate forward inside the linkage frame plate, and the second threaded sleeve bracket moves downward under the action of the thread, and at the same time, the second threaded sleeve bracket moves upward under the action of the thread, and the second threaded sleeve bracket and the first threaded sleeve bracket respectively drive the two clamping arc blocks to extrude the outer wall of the injection molding butt tube to vertically lock the injection molding butt tube, and then start the reduction drive motor to drive the linkage screw to rotate forward inside the guide frame plate, and the linkage screw drives the guide frame plate to move to the left along the inside of the guide frame plate under the action of the thread, and at the same time, the guide frame plate drives the two linkage support plates to move to the left, and the linkage support plate drives the linkage frame plate to move the locking screw, and the locking screw drives the second threaded sleeve bracket and the first threaded sleeve bracket to move at the same time, and the clamping arc block drives the injection molding butt tube to move, and the injection molding butt tube drives the sealing ring to be squeezed at the right end of the injection nozzle to form a two-way locking.

[0009] Preferably, a butt seal assembly is provided between the injection molding nozzle and the injection molding butt tube;

[0010] The docking sealing assembly includes a sealing ring arranged between the injection molding nozzle and the injection molding docking tube, the outer wall of the sealing ring is fixedly connected to a support ring, an extrusion support ring is welded to the outer wall of the support ring, a plug-in sealing ring is fixedly connected to one side of the extrusion support ring, the outer wall of the plug-in sealing ring is provided with a supporting embedded ring fixedly connected to the injection molding docking tube, the injection molding docking tube is slidably connected to the sealing ring and the support ring respectively, and the plug-in sealing ring is horizontally slidably plugged with the supporting embedded ring.

[0011] According to the above technical scheme, the injection molding butt tube is extruded on the sealing ring, and the injection molding nozzle supports the sealing ring. At the same time, the injection molding butt tube drives the supporting embedded ring to move, and the supporting embedded ring drives the plug-in sealing ring to plug-in seal, and the plug-in sealing ring is extruded on the extrusion support ring, and the injection molding nozzle supports the supporting ring, and the extrusion support ring supports and seals the plug-in sealing ring.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By setting a two-way locking component, the locking motor is started to drive the locking screw to rotate forward inside the linkage frame plate, the second threaded sleeve bracket and the first threaded sleeve bracket respectively drive the two clamping arc blocks to squeeze the outer wall of the injection molding butt pipe, the reduction drive motor is started to drive the linkage screw to rotate forward inside the guide frame plate, the first threaded sleeve bracket and the second threaded sleeve bracket both drive the clamping arc block to move horizontally, and the injection molding nozzle and the injection molding butt pipe can form vertical and horizontal locking after docking, the connection is more firmly connected, and the anti-drooling property is better;

[0014] 2. The injection molding butt joint is squeezed on the sealing ring, and the injection molding nozzle supports the sealing ring. The supporting embedded ring drives the plug-in sealing ring to seal, and the plug-in sealing ring is squeezed on the extrusion support ring. The extrusion support ring supports the plug-in sealing ring, thereby improving the butt sealing between the injection molding nozzle and the injection molding butt joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the anti-drooling straight-through injection molding nozzle structure provided by the utility model.

[0016] Figure 2 It is a schematic diagram of the partial structure of the connection between the injection nozzle and the fixed support ring in the anti-drooling straight-through injection nozzle structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the main structure of the connection between the linkage frame plate and the locking screw in the anti-drooling straight-through injection nozzle structure of the utility model.

[0018] Figure 4It is a schematic diagram of the local structure of the vertical section of the connection between the sealing ring and the injection butt pipe in the anti-drooling straight-through injection nozzle structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. injection nozzle; 2. injection butt tube; 3. fixed support ring; 4. guide frame plate; 5. linkage screw; 6. reduction drive motor; 7. threaded sleeve locking block; 8. linkage support plate; 9. linkage frame plate; 10. first threaded sleeve bracket; 11. second threaded sleeve bracket; 12. locking screw; 13. drive locking motor; 14. clamping arc block; 15. injection cylinder; 16. sealing ring; 17. support ring; 18. extrusion support ring; 19. plug-in sealing ring; 20. support embedded ring. DETAILED DESCRIPTION

[0020] 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.

[0021] As attached Figure 1-4 The anti-drooling straight-through injection nozzle structure shown in the figure is provided with a two-way locking assembly. The setting of the two-way locking assembly enables the injection nozzle 1 and the injection butt pipe 2 to be vertically and horizontally locked after docking, and the connection is more firmly connected and has better anti-drooling performance. The specific structure of the two-way locking assembly is as follows:

[0022] In some embodiments, as shown in the attached Figure 1-3 As shown, the two-way locking assembly includes a guide frame plate 4 arranged on one side of the outer wall of the fixed support ring 3, and the inner wall of the guide frame plate 4 is rotatably connected with a linkage screw 5, one end of the linkage screw 5 extends to the outside of the guide frame plate 4 and is coaxially connected with a reduction drive motor 6, the outer wall of the linkage screw 5 is provided with a threaded sleeve locking block 7 slidably connected to the guide frame plate 4, the top and bottom ends of the threaded sleeve locking block 7 are fixedly connected with a linkage support plate 8, one end of the linkage support plate 8 is welded with a linkage frame plate 9, the inside of the linkage frame plate 9 is rotatably connected with a locking screw 12, and the outer wall of the locking screw 12 is provided with a first threaded sleeve bracket 10 and a second threaded sleeve bracket 11 from top to bottom in sequence;

[0023] When the anti-drooling straight-through injection nozzle structure of this embodiment is used, after the injection nozzle 1 and the injection molding butt joint 2 are docked, the locking motor 13 is driven by the switch to drive the locking screw 12 to rotate forward inside the linkage frame plate 9, so that the locking screw 12 drives the second threaded sleeve bracket 11 to move downward under the action of the thread, and at the same time, the second threaded sleeve bracket 11 moves upward under the action of the thread, and the two threads on the outer wall of the locking screw 12 are opposite and symmetrically arranged, the second threaded sleeve bracket 11 and the first threaded sleeve bracket 10 respectively drive the two clamping arc blocks 14 to squeeze the outer wall of the injection molding butt joint 2, and vertically lock the injection molding butt joint 2, and then start the reduction drive motor 6 to drive the linkage screw 5 to rotate forward inside the guide frame plate 4, and the linkage screw 5 drives the guide frame plate 4 to move left along the inside of the guide frame plate 4 under the action of the thread. Move, and at the same time, the guide frame plate 4 drives the two linkage support plates 8 to move leftward, the linkage support plate 8 drives the linkage frame plate 9 to move the locking screw 12, and the locking screw 12 drives the second threaded sleeve bracket 11 and the first threaded sleeve bracket 10 to move at the same time, the first threaded sleeve bracket 10 and the second threaded sleeve bracket 11 both drive the clamping arc block 14 to move, the clamping arc block 14 drives the injection molding butt joint tube 2 to move, and the injection molding butt joint tube 2 drives the sealing ring 16 to be squeezed on the right end part of the injection molding nozzle 1, so that the injection molding nozzle 1 and the injection molding butt joint tube 2 can form vertical and horizontal locking after docking, and the connection between the injection molding butt joint tube 2 and the injection molding nozzle 1 is more firmly, and the molten plastic liquid inside the injection molding cylinder 15 is injected into the injection molding nozzle 1, and enters into the injection molding butt joint tube 2 along the injection molding nozzle 1, and the injection molding butt joint tube 2 is docked to the injection mold.

[0024] In some embodiments, as shown in the attached Figure 1-3 As shown, the top end of the locking screw 12 extends to the top of the linkage frame plate 9 and is coaxially connected to a driving locking motor 13, and the driving locking motor 13 is fixedly connected to the linkage frame plate 9. One end of the first threaded sleeve bracket 10 and the second threaded sleeve bracket 11 are fixedly connected to a clamping arc block 14, so that the driving locking motor 13 is started to drive the locking screw 12 to rotate forward inside the linkage frame plate 9. The second threaded sleeve bracket 11 and the first threaded sleeve bracket 10 respectively drive the two clamping arc blocks 14 to squeeze the outer wall of the injection molding butt joint tube 2, which can play a vertical locking role on the injection molding butt joint tube 2, increase the sealing of the connection between the injection molding butt joint tube 2 and the injection molding nozzle 1, and the other end of the injection molding nozzle 1 is fixedly connected to an injection molding barrel 15, and the injection molding barrel 15 is connected to the injection molding nozzle 1, so that the molten plastic liquid inside the injection molding barrel 15 is injected into the injection molding nozzle 1, and enters the injection molding butt joint tube 2 along the injection molding nozzle 1, so as to play a docking injection role.

[0025] In some embodiments, as shown in the attached Figure 4 As shown, a butt seal assembly is provided between the injection nozzle 1 and the injection butt pipe 2;

[0026] The butt seal assembly includes a sealing ring 16 disposed between the injection nozzle 1 and the injection butt pipe 2, the outer wall of the sealing ring 16 is fixedly connected with a support ring 17, an extrusion support ring 18 is welded to the outer wall of the support ring 17, a plug-in sealing ring 19 is fixedly connected to one side of the extrusion support ring 18, and the outer wall of the plug-in sealing ring 19 is provided with a support embedding ring 20 fixedly connected to the injection butt pipe 2;

[0027] According to the upper structure, during the docking and sealing, the injection-molded docking tube 2 is squeezed on the sealing ring 16, and the sealing ring 16 is supported by the injection-molded nozzle 1. At the same time, the injection-molded docking tube 2 drives the supporting embedded ring 20 to move, and the supporting embedded ring 20 drives the plug-in sealing ring 19 for plug-in sealing, and the plug-in sealing ring 19 is squeezed on the extrusion support ring 18, and the injection-molded nozzle 1 supports the support ring 17, and the support ring 17 supports the extrusion support ring 18, and the extrusion support ring 18 supports the plug-in sealing ring 19, so that internal and external multi-layer embedded seals are formed, and the sealing performance is effectively improved.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An anti-drooling straight-through injection nozzle structure, comprising an injection nozzle (1), one side of the injection nozzle (1) is provided with an injection butt joint tube (2), an outer wall of the injection nozzle (1) is fixedly connected with a fixed support ring (3), characterized in that: A bidirectional locking assembly is provided on one side of the outer wall of the fixed support ring (3); The bidirectional locking assembly comprises a guide frame plate (4) arranged on one side of the outer wall of the fixed support ring (3), and the inner wall of the guide frame plate (4) is rotatably connected to a linkage screw rod (5), one end of the linkage screw rod (5) extends to the outside of the guide frame plate (4) and is coaxially connected to a reduction drive motor (6), the outer wall of the linkage screw rod (5) is provided with a threaded sleeve locking block (7) slidably connected to the guide frame plate (4), the top and bottom ends of the threaded sleeve locking block (7) are fixedly connected to a linkage support plate (8), one end of the linkage support plate (8) is welded to a linkage frame plate (9), the interior of the linkage frame plate (9) is rotatably connected to a locking screw rod (12), and the outer wall of the locking screw rod (12) is provided with a first threaded sleeve bracket (10) and a second threaded sleeve bracket (11) in sequence from top to bottom.

2. The anti-drooling straight-through injection molding nozzle structure according to claim 1, characterized in that: The reduction drive motor (6) is fixedly connected to the plastic and injection nozzle (1) and the guide frame plate (4) respectively, and the outer wall of the linkage screw (5) is threadedly connected to the inner wall of the threaded sleeve locking block (7).

3. The anti-drooling straight-through injection molding nozzle structure according to claim 1, characterized in that: The first threaded sleeve bracket (10) and the second threaded sleeve bracket (11) are both threadedly connected to the locking screw (12); the outer wall of the locking screw (12) has two threads that are opposite and symmetrically arranged; and the first threaded sleeve bracket (10) and the second threaded sleeve bracket (11) are both vertically slidably connected to the linkage frame plate (9).

4. The anti-drooling straight-through injection molding nozzle structure according to claim 1, characterized in that: The top end of the locking screw (12) extends to above the linkage frame plate (9) and is coaxially connected to a driving locking motor (13), and the driving locking motor (13) and the linkage frame plate (9) are fixedly connected, and one end of each of the first threaded sleeve bracket (10) and the second threaded sleeve bracket (11) is fixedly connected to a clamping arc block (14).

5. The anti-drooling straight-through injection molding nozzle structure according to claim 1, characterized in that: The other end of the injection nozzle (1) is fixedly connected to an injection cylinder (15), and the injection cylinder (15) is in communication with the injection nozzle (1).

6. The anti-drooling straight-through injection molding nozzle structure according to claim 1, characterized in that: A butt sealing assembly is provided between the injection molding nozzle (1) and the injection molding butt pipe (2); The butt seal assembly comprises a sealing ring (16) arranged between the injection nozzle (1) and the injection butt pipe (2); the outer wall of the sealing ring (16) is fixedly connected to a support ring (17); an extrusion support ring (18) is welded to the outer wall of the support ring (17); a plug-in sealing ring (19) is fixedly connected to one side of the extrusion support ring (18); the outer wall of the plug-in sealing ring (19) is provided with a support embedding ring (20) fixedly connected to the injection butt pipe (2); the injection butt pipe (2) is slidably connected to the sealing ring (16) and the support ring (17) respectively; the plug-in sealing ring (19) and the support embedding ring (20) are horizontally slidably plugged in.

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