Needle valve type hot runner hot nozzle sprue bush

Abstract

The utility model discloses a needle valve type hot runner hot nozzle sprue bush which comprises a hot nozzle main body and an auxiliary pull ring, a nozzle head is arranged at the bottom end of the hot nozzle main body, a valve needle is arranged at the bottom end of the nozzle head, a placement seat is fixedly arranged at the bottom of the surface of the hot nozzle main body, and a sprue bush body is arranged in the placement seat in a clamped mode. According to the needle valve type hot runner hot nozzle sprue bush disclosed by the utility model, the two auxiliary pull ropes are driven to move by pulling the auxiliary pull ring, so that the two limiting blocks are contracted into the two mounting grooves; connecting clamping blocks are clamped with a plurality of connecting clamping grooves in a limiting mode so that the pouring head sleeve body can be preliminarily limited, then an auxiliary pull ring is loosened so that two limiting blocks can be clamped with two limiting grooves under the action of a plurality of supporting springs, and then the pouring head sleeve body can be further limited; therefore, the pouring head sleeve body can be quickly mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a needle valve type hot runner hot nozzle sprue sleeve. Background Art

[0002] The front end of the existing needle valve hot runner nozzle is equipped with a sprue sleeve, and then the sprue sleeve is assembled to the entire mold. The sprue sleeve can prevent the valve needle from directly contacting the mold gate. Some injection molding materials are acidic or corrosive, and the sprue sleeve can effectively protect the valve needle and gate of the mold, thereby increasing the service life of the mold. However, the existing sprue sleeve is usually directly fixed on the nozzle, which makes it inconvenient to quickly install and disassemble the sprue sleeve for maintenance, thereby affecting work efficiency.

[0003] In order to solve the above problems, a needle valve type hot runner hot nozzle sprue sleeve is proposed. Utility Model Content

[0004] The utility model aims to provide a needle valve type hot runner hot nozzle sprue sleeve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a needle valve type hot runner hot nozzle sprue sleeve, comprising a hot nozzle body and an auxiliary pull ring, the bottom end of the hot nozzle body is provided with a nozzle head, the bottom end of the nozzle head is provided with a valve needle, the bottom of the surface of the hot nozzle body is fixedly provided with a seating seat, the inner side of the seating seat is clamped with a sprue sleeve body, both sides of the inner wall of the seating seat are provided with mounting grooves, the inner sides of the two mounting grooves are fixedly provided with a plurality of supporting springs, and the ends of the several supporting springs located on the same side away from the inner side of the mounting groove are fixedly provided with limiting blocks, both sides of the two sprue sleeve bodies are provided with limiting grooves, the two limiting blocks are respectively clamped with the two limiting grooves, and the two limiting blocks are fixedly provided with auxiliary pull ropes on the side close to the supporting springs, and the ends of the two auxiliary pull ropes away from the limiting blocks are extended to the outside and fixedly connected with the auxiliary pull rings.

[0006] By pulling the auxiliary pull ring, the two auxiliary pull ropes are driven to move, so that the two limit blocks are retracted into the two installation grooves, and then the connecting blocks are respectively engaged with the limiting clamps of several connecting clamps to facilitate the initial limiting of the pouring sleeve body, and then the auxiliary pull ring is loosened, so that the two limit blocks are respectively engaged with the two limit grooves under the action of several supporting springs, so as to facilitate further limiting the pouring sleeve body, thereby realizing the rapid installation of the pouring sleeve body, by pulling the auxiliary pull ring, the two auxiliary pull ropes are driven to move, so that the two limit blocks are retracted into the two installation grooves, so that the two limit blocks are separated from the two limit grooves, and the pouring sleeve body is no longer limited, and then the pouring sleeve body is pulled downward with a greater force, so that several connecting blocks are separated from several connecting slots, so as to facilitate the rapid disassembly and maintenance of the pouring sleeve body.

[0007] Preferably, a first wire groove is opened on one side of the inner wall of the two installation grooves, a second wire groove is opened on one side of the two first wire grooves, a third wire groove is opened on the front of the placement seat, the two second wire grooves are communicated with the third wire groove, the third wire groove is interlaced and connected with two auxiliary pull ropes, the two second wire grooves and the two first wire grooves are interlaced and connected with the two auxiliary pull ropes respectively, and the arrangement of the third wire groove, the two second wire grooves and the two first wire grooves facilitates the interlacing and movement of the two auxiliary pull ropes.

[0008] Preferably, a plurality of connecting slots are provided at the top of the inner side of the mounting seat, and connecting blocks are provided inside the plurality of connecting slots, and the plurality of connecting blocks are fixedly connected to the pouring head sleeve body. The connecting blocks are respectively engaged with the limiting blocks of the plurality of connecting slots to facilitate preliminary limiting of the pouring head sleeve body.

[0009] Preferably, two guide grooves are provided at the connection between the arranging seat and the pouring head sleeve body, and guide blocks are slidably arranged inside the two guide grooves. The two guide blocks are fixedly connected to the pouring head sleeve body, and the matching arrangement of the two guide blocks and the two guide grooves facilitates the pouring head sleeve body to be quickly and accurately inserted into the arranging seat.

[0010] Preferably, the top ends of the inner walls of the two installation grooves and the bottom ends of the inner walls of the two installation grooves are provided with sliding grooves, the top ends of the two limit blocks and the bottom ends of the two limit blocks are fixedly provided with sliders, the four sliders are slidably connected to the four sliding grooves respectively, and the stable movement of the two limit blocks is facilitated by the matching arrangement of the four sliders with the four sliding grooves respectively.

[0011] Preferably, a matching groove is provided in the middle of the top of the pouring head sleeve body, and a through groove is provided at the bottom of the inner side of the matching groove, so that the material can be easily introduced into the mold.

[0012] Preferably, a pressing cap is provided at the connection between the nozzle head and the hot nozzle body, and the setting of the pressing cap facilitates the installation of the nozzle head.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By pulling the auxiliary pull ring, the two auxiliary pull ropes are driven to move, so that the two limit blocks are retracted into the two installation grooves, and then the connecting blocks are respectively engaged with the limiting clamps of several connecting clamps to facilitate the initial limiting of the pouring sleeve body, and then the auxiliary pull ring is loosened, so that the two limit blocks are respectively engaged with the two limit grooves under the action of several supporting springs, so as to facilitate further limiting the pouring sleeve body, thereby realizing the rapid installation of the pouring sleeve body, by pulling the auxiliary pull ring, the two auxiliary pull ropes are driven to move, so that the two limit blocks are retracted into the two installation grooves, so that the two limit blocks are separated from the two limit grooves, and the pouring sleeve body is no longer limited, and then the pouring sleeve body is pulled downward with a greater force, so that several connecting blocks are separated from several connecting slots, so as to facilitate the rapid disassembly and maintenance of the pouring sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a partial front cross-sectional view of the utility model;

[0017] Figure 3 It is an enlarged view of part A of the utility model;

[0018] Figure 4 This is a connection diagram of the installation seat and the pouring head sleeve body of the utility model;

[0019] Figure 5 It is an enlarged view of part B of the utility model;

[0020] Figure 6 It is an enlarged view of the local C of the utility model.

[0021] In the figure: 1. hot nozzle body; 2. nozzle head; 3. placement seat; 4. pouring nozzle sleeve body; 5. matching groove; 6. through groove; 7. connecting card groove; 8. connecting card block; 9. limit groove; 10. installation groove; 11. support spring; 12. limit block; 13. auxiliary pull rope; 14. slide groove; 15. slider; 16. first wire groove; 17. second wire groove; 18. third wire groove; 19. auxiliary pull ring; 20. valve needle; 21. pressure cap; 22. guide block; 23. guide groove. 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 a needle valve type hot runner hot nozzle sprue sleeve, including a hot nozzle body 1 and an auxiliary pull ring 19, a nozzle head 2 is arranged at the bottom end of the hot nozzle body 1, a valve needle 20 is arranged at the bottom end of the nozzle head 2, a placement seat 3 is fixedly arranged at the bottom of the surface of the hot nozzle body 1, and a pouring head sleeve body 4 is arranged in a snap-fitting manner inside the placement seat 3, and installation grooves 10 are arranged on both sides of the inner wall of the placement seat 3, and a plurality of supporting springs 11 are fixedly arranged on the inner sides of the two installation grooves 10, and a limiting block 12 is fixedly arranged on one end away from the inner side of the installation groove 10 between the plurality of supporting springs 11 on the same side, and a limiting groove 9 is arranged on both sides of the two pouring head sleeve bodies 4, and the two limiting blocks 12 are respectively snap-fitted with the two limiting grooves 9, and the two limiting blocks 12 are fixedly arranged on one side close to the supporting spring 11 with an auxiliary pull rope 13, and the ends of the two auxiliary pull ropes 13 away from the limiting blocks 12 are extended to the outside and fixedly connected with the auxiliary pull ring 19, and the auxiliary pull ropes 13 are pulled by pulling the auxiliary pull ropes 13. The pull ring 19 drives the two auxiliary pull ropes 13 to move, thereby shrinking the two limit blocks 12 into the two installation grooves 10, and then the connecting blocks 8 are respectively engaged with the limiting engagement of several connecting grooves 7 to facilitate the preliminary limiting of the pouring sleeve body 4, and then the auxiliary pull ring 19 is loosened, so that the two limit blocks 12 are respectively engaged with the two limit grooves 9 under the action of several supporting springs 11, so as to facilitate further limiting the pouring sleeve body 4, thereby realizing the rapid installation of the pouring sleeve body 4, by pulling the auxiliary pull ring 19, and then driving the two auxiliary pull ropes 13 to move, so that the two limit blocks 12 are retracted into the two installation grooves 10, so that the two limit blocks 12 are separated from the two limit grooves 9, and the pouring sleeve body 4 is no longer limited, and then the pouring sleeve body 4 is pulled downward with a greater force, so that several connecting blocks 8 are separated from several connecting grooves 7, so as to facilitate the rapid disassembly and maintenance of the pouring sleeve body 4.

[0024] A first wire groove 16 is provided on one side of the inner wall of the two installation grooves 10, and a second wire groove 17 is provided on one side of the two first wire grooves 16. A third wire groove 18 is provided on the front of the placement seat 3, and the two second wire grooves 17 are connected to the third wire groove 18. The third wire groove 18 is connected to the two auxiliary pull ropes 13 through insertion, and the two second wire grooves 17 and the two first wire grooves 16 are connected to the two auxiliary pull ropes 13 through insertion, respectively. A plurality of connecting card grooves 7 are provided on the top of the inner side of the placement seat 3, and connecting card blocks 8 are provided inside the plurality of connecting card grooves 7, and the plurality of connecting card blocks 8 are fixedly connected to the pouring head cover body 4. Two guide grooves 23 are provided at the connection between the placement seat 3 and the pouring head cover body 4, and guide blocks 22 are slidably provided inside the two guide grooves 23, and the two guide blocks 22 are fixedly connected to the pouring head cover body 4;

[0025] When in use, the third wire groove 18, the two second wire grooves 17 and the two first wire grooves 16 are provided to facilitate the insertion and movement of the two auxiliary pull ropes 13, and the connection block 8 is respectively engaged with the plurality of connection grooves 7 to facilitate the preliminary limiting of the pouring head cover body 4, and the two guide blocks 22 and the two guide grooves 23 are provided to facilitate the pouring head cover body 4 to be quickly and accurately inserted into the placement seat 3;

[0026] The top of the inner wall of the two installation grooves 10 and the bottom of the inner wall of the two installation grooves 10 are both provided with slide grooves 14, the top of the two limit blocks 12 and the bottom of the two limit blocks 12 are both fixedly provided with sliders 15, and the four sliders 15 are respectively slidably connected with the four slide grooves 14, a matching groove 5 is provided in the middle of the top of the pouring head sleeve body 4, a through groove 6 is provided at the bottom of the inner side of the matching groove 5, and a pressure cap 21 is provided at the connection between the nozzle head 2 and the hot nozzle body 1;

[0027] When in use, the four sliders 15 cooperate with the four slide grooves 14 to facilitate the stable movement of the two limit blocks 12, the through groove 6 is convenient for introducing the material into the mold, and the pressure cap 21 is convenient for installing the nozzle head 2.

[0028] When the embodiment of the present application is in use, the auxiliary pull ring 19 is pulled to drive the two auxiliary pull ropes 13 to move, so that the two limit blocks 12 are retracted into the two installation grooves 10, and then the connecting block 8 is respectively engaged with the limiting snap-fitting of the plurality of connecting slots 7 to facilitate the preliminary limiting of the pouring head cover body 4, and then the auxiliary pull ring 19 is loosened, so that the two limit blocks 12 are respectively engaged with the two limit slots 9 under the action of the plurality of supporting springs 11, so as to facilitate the further limiting of the pouring head cover body 4, thereby achieving The pouring sleeve body 4 can be installed quickly. When the pouring sleeve body 4 needs to be disassembled for maintenance, the auxiliary pull ring 19 is pulled to drive the two auxiliary pull ropes 13 to move, thereby shrinking the two limit blocks 12 into the two installation grooves 10, so that the two limit blocks 12 are separated from the two limit grooves 9, and the pouring sleeve body 4 is no longer limited. Then, a greater force is used to pull the pouring sleeve body 4 downward, so that several connecting blocks 8 are separated from several connecting grooves 7, thereby facilitating the quick disassembly and maintenance of the pouring sleeve body 4.

[0029] 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. A needle valve type hot runner nozzle sprue sleeve, comprising a nozzle body (1) and an auxiliary pull ring (19), characterized in that: A nozzle head (2) is arranged at the bottom end of the hot nozzle body (1), a valve needle (20) is arranged at the bottom end of the nozzle head (2), a mounting seat (3) is fixedly arranged at the bottom of the surface of the hot nozzle body (1), a pouring head sleeve body (4) is arranged in a snap-fitting manner inside the mounting seat (3), mounting grooves (10) are arranged on both sides of the inner wall of the mounting seat (3), a plurality of support springs (11) are fixedly arranged on the inner sides of the two mounting grooves (10), and the plurality of support springs (11) located on the same side are fixedly arranged on the inner sides of the two mounting grooves (10). ) are fixedly provided with a limit block (12) at one end away from the inner side of the installation groove (10), and both sides of the two pouring head sleeve bodies (4) are provided with limit grooves (9), and the two limit blocks (12) are respectively engaged with the two limit grooves (9), and the two limit blocks (12) are fixedly provided with an auxiliary pull rope (13) on one side close to the support spring (11), and the ends of the two auxiliary pull ropes (13) away from the limit blocks (12) are extended to the outside and fixedly connected with the auxiliary pull ring (19).

2. A needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: A first wire groove (16) is provided on one side of the inner wall of the two installation grooves (10), a second wire groove (17) is provided on one side of the two first wire grooves (16), a third wire groove (18) is provided on the front of the placement seat (3), the two second wire grooves (17) are connected to the third wire groove (18), the third wire groove (18) is connected to the two auxiliary pull ropes (13) through insertion, and the two second wire grooves (17) and the two first wire grooves (16) are connected to the two auxiliary pull ropes (13) through insertion.

3. The needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: A plurality of connection slots (7) are provided at the top of the inner side of the placement seat (3), and connection blocks (8) are provided inside the plurality of connection slots (7), and the plurality of connection blocks (8) are fixedly connected to the pouring head sleeve body (4).

4. The needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: Two guide grooves (23) are provided at the connection between the placement seat (3) and the pouring head sleeve body (4), and guide blocks (22) are slidably arranged inside the two guide grooves (23), and the two guide blocks (22) are fixedly connected to the pouring head sleeve body (4).

5. The needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: The top ends of the inner walls of the two installation grooves (10) and the bottom ends of the inner walls of the two installation grooves (10) are both provided with sliding grooves (14), the top ends of the two limit blocks (12) and the bottom ends of the two limit blocks (12) are both fixedly provided with sliding blocks (15), and the four sliding blocks (15) are respectively slidably connected to the four sliding grooves (14).

6. The needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: A matching groove (5) is provided in the middle of the top of the pouring head sleeve body (4), and a through groove (6) is provided at the bottom of the inner side of the matching groove (5).

7. The needle valve type hot runner hot nozzle sprue sleeve according to claim 1, characterized in that: A pressure cap (21) is provided at the connection between the nozzle head (2) and the hot nozzle body (1).

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