Injection nozzle structure

Abstract

The utility model provides an injection molding nozzle structure which comprises a cap, a connecting ring fixedly connected with the cap is sleeved at the large head end of the cap, a threaded sleeve is arranged at the small head end of the cap, a ring fixedly connected with the threaded sleeve is sleeved at one end, close to the cap, of the threaded sleeve, and the ring is fixedly connected with the connecting ring through a plurality of connecting screws. A hollow threaded head is connected into the threaded sleeve in a threaded mode, a hexahedron fixedly connected with the threaded head is arranged at the end, located on the outer side of the threaded sleeve, of the threaded head in a sleeving mode, and a nozzle head communicated with the threaded head is arranged on the side, away from the threaded head, of the hexahedron. The utility model has the beneficial effects that the threaded connection part can be independently replaced after being damaged, and the replacement cost of parts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a injection nozzle structure belongs to injection field. BACKGROUND

[0002] Injection nozzle is a key component on injection molding machine, is located between the cylinder and the mould, is used for the molten plastics material from the cylinder delivery to the gate of mould. Injection nozzle one end is processed with external thread, the cylinder discharge end is processed with threaded hole, make injection nozzle processing external thread one end screw thread connection in threaded hole on the cylinder, complete injection nozzle and cylinder's assembly, because injection nozzle will appear material solidification in injection nozzle condition, therefore need to injection nozzle is disassembled, in the disassembly process because the torque is too big etc. can cause damage to the threaded hole on the cylinder, when the threaded hole on the cylinder is damaged, need to replace the cylinder, thereby increase the spare part replacement cost. CONTENT OF UTILITY MODEL

[0003] In view of the deficiency of prior art, the utility model aims at providing a injection nozzle structure to solve the problems in the background art, the utility model realizes that the threaded connection part is damaged and is replaced separately, and the spare part replacement cost is reduced.

[0004] In order to realize the above-mentioned purpose, the utility model is through the following technical scheme to realize: a injection nozzle structure, including cap, the cap big end is equipped with with the connection ring that is connected with cap fixed, the cap small end is equipped with threaded sleeve, the threaded sleeve is equipped with with the ring that is connected with threaded sleeve fixed near the one end of cap, the ring is connected with connection ring fixed through a plurality of connecting screws, the threaded sleeve is connected with the hollow screw head of screwing in, the screw head is equipped with with the hexahedron that is connected with screw head fixed one end of screw head outside threaded sleeve, the hexahedron is equipped with with the nozzle head that is connected with screw head communicates away from the one side of screw head.

[0005] Further, one side of the threaded sleeve is mounted with a sealing ring, and the sealing ring is attached to the cap.

[0006] Further, a plurality of small holes are equidistantly arranged on the edge of one side of the ring, and the connecting screws are screwed into the small holes and connected with the connection ring.

[0007] Further, a plurality of first protrusions are equidistantly arranged on one side of the connection ring, a circular hole is arranged on one side of the first protrusion, a plurality of rectangular grooves are equidistantly arranged on one side of the connection ring away from the first protrusion, one end of the rectangular groove extends into the first protrusion, a rectangular block is inserted into the rectangular groove, a screw hole is arranged on one side of the rectangular block and aligned with the circular hole, and one end of the connecting screw is screwed into the screw hole through the circular hole.

[0008] Further, a plurality of second protrusions are fixed on one side of the connecting ring in a ring shape at equal intervals, a through hole is formed on one side of the second protrusion facing the ring, a plurality of fixing holes are formed on one side of the connecting ring facing away from the second protrusion in a ring shape at equal intervals, and the through hole and the fixing hole are communicated.

[0009] Further, a plurality of arc-shaped openings are formed on one side of the ring in a ring shape at equal intervals, and the arc-shaped openings and the small holes are arranged alternately.

[0010] Further, the hexahedron and the threaded head are formed in an integral structure, and the nozzle head and the threaded head are formed in an integral structure.

[0011] The utility model discloses beneficial effects:

[0012] 1, make the connecting screw pass through the ring and be connected with the connecting ring, complete the assembly of the threaded sleeve and the cap, make the threaded head be connected in the threaded sleeve, complete the assembly of the injection nozzle formed by the threaded head and the nozzle head and the cap, install the cap in the material cylinder discharge end by bolt, complete the installation of the injection nozzle, when the threaded head is damaged in the dismounting process with the threaded sleeve, can replace the threaded sleeve after the connecting screw is taken off, realize the individual replacement of the damaged threaded sleeve, compared with the replacement of the material cylinder with threaded holes, reduce the replacement cost of parts.

[0013] 2, when installing the connecting screw, make the rectangular block processed with the threaded hole be inserted in the rectangular groove, then make the connecting screw pass through the small hole and the round hole and be screwed into the threaded hole, complete the assembly of the ring and the connecting ring, when the connecting screw can not be connected by the wrench due to oxidation corrosion in the high temperature environment, cut off the connecting screw by the gap between the ring and the connecting ring, then take out the rectangular block with the remaining part of the connecting screw from the rectangular groove and replace it, provide a standby mode for disassembling the threaded sleeve and the cap. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0015] Figure 1 It is the structure schematic view of the utility model kind of injection molding nozzle structure;

[0016] Figure 2 It is another perspective view solid drawing of the utility model kind of injection molding nozzle structure;

[0017] Figure 3 It is the assembly schematic view of nozzle head, hexahedron and threaded head in the utility model kind of injection molding nozzle structure;

[0018] Figure 4The utility model discloses a kind of assembly diagrams of connecting ring and cap in injection molding nozzle structure.

[0019] In the drawing: 1-cap, 2-first protrusion, 3-connecting ring, 4-second protrusion, 5-connecting screw, 6-ring, 7-hexahedron, 8-nozzle head, 9-threaded sleeve, 10-arc-shaped port, 11-rectangular block, 12-screw hole, 13-threaded head, 14-rectangular groove, 15-fixing hole, 16-small hole. DETAILED DESCRIPTION

[0020] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 4 The utility model provides a technical scheme: a kind of injection molding nozzle structure, including cap 1, the big end of cap 1 is equipped with the connecting ring 3 being connected with the fixed cap 1, the one side of connecting ring 3 facing ring 6 is annularly equidistant and is fixed with multiple second protrusions 4, the one side of second protrusion 4 facing ring 6 is provided with through hole, the one side of connecting ring 3 deviating second protrusion 4 is annularly equidistant and is provided with multiple fixing holes 15, through hole and fixed hole 15 are communicated, second protrusion 4 and first protrusion 2 are alternately arranged, so that bolt is connected with barrel after passing through the passage formed by fixed hole 15 and through hole, complete the installation of cap 1 in barrel discharge end.

[0022] Refer to Figures 1-4The small head end of the cap 1 is provided with a threaded sleeve 9, a sealing ring is installed on the side of the threaded sleeve 9 facing the cap 1, the sealing ring is attached to the cap 1, a ring 6 is sleeved on the end of the threaded sleeve 9 close to the cap 1 and is connected and fixed with the threaded sleeve 9, the ring 6 is connected and fixed with the connecting ring 3 through a plurality of connecting screws 5, one side of the ring 6 is annular and a plurality of arc-shaped openings 10 are arranged at equal intervals, the plurality of arc-shaped openings 10 are alternately arranged with the plurality of small holes 16, the design of the arc-shaped openings 10 reduces the material consumption of the ring 6, a hollow threaded head 13 is threadedly connected in the threaded sleeve 9, a hexahedron 7 is sleeved on the end of the threaded head 13 away from the threaded sleeve 9 and is connected and fixed with the threaded head 13, a nozzle head 8 is arranged on the side of the hexahedron 7 away from the threaded head 13 and is connected and communicated with the threaded head 13, the hexahedron 7 and the threaded head 13 are integrally formed, the nozzle head 8 and the threaded head 13 are integrally formed, the design of the hexahedron 7 provides a clamping position for a wrench, the connecting screw 5 is connected with the connecting ring 3 after penetrating through the ring 6, the assembly of the threaded sleeve 9 and the cap 1 is completed, the threaded head 13 is threadedly connected in the threaded sleeve 9, the assembly of the injection nozzle formed by the threaded head 13 and the nozzle head 8 and the cap 1 is completed, the cap 1 is installed on the discharge end of the barrel by using a bolt, the installation of the injection nozzle is completed, when the threaded head 13 is damaged during disassembly and assembly with the threaded sleeve 9, the threaded sleeve 9 can be replaced after the connecting screw 5 is removed, the damaged threaded sleeve 9 is replaced individually, compared with replacing the barrel with threaded holes, the replacement cost of parts is reduced.

[0023] Referring to Figures 1-4 A plurality of small holes 16 are arranged at equal intervals on the side edge of the ring 6, the connecting screw 5 is threadedly connected with the connecting ring 3 after penetrating through the small hole 16, the connecting ring 3 is provided with a plurality of first protrusions 2 fixed at equal intervals on the side facing the ring 6, a circular hole is arranged on the side of the first protrusion 2 facing the ring 6, a plurality of rectangular grooves 14 are arranged at equal intervals on the side of the connecting ring 3 away from the first protrusion 2, one end of the rectangular groove 14 extends into the first protrusion 2, a rectangular block 11 is inserted into the rectangular groove 14, a screw hole 12 aligned with the circular hole is arranged on one side of the rectangular block 11, one end of the connecting screw 5 penetrates through the circular hole and is threadedly connected in the screw hole 12, when the connecting screw 5 is installed, the rectangular block 11 with the screw hole 12 is inserted into the rectangular groove 14, then the connecting screw 5 is screwed into the screw hole 12 after penetrating through the small hole 16 and the circular hole, the assembly of the ring 6 and the connecting ring 3 is completed, when the connecting screw 5 cannot be clamped by a wrench due to oxidation and rust in a high-temperature environment, the connecting screw 5 is cut off by using the gap between the ring 6 and the connecting ring 3, then the rectangular block 11 with part of the connecting screw 5 is taken out of the rectangular groove 14 and replaced, which provides a standby mode for disassembling the threaded sleeve 9 and the cap 1.

[0024] Although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or implements every combination of features described in the present specification. In addition, not every embodiment includes every embodiment described in the present specification. The description herein of any embodiment, including any preferred embodiment, is thus intended to be illustrative, and not restrictive. The scope of the present application is thus intended to be broad, and will be set forth in the following claims.

Claims

1. An injection nozzle structure comprising a cap (1), characterized in that: The cap (1) is provided with a connecting ring (3) fixedly connected with the cap (1) at the large end, a threaded sleeve (9) is arranged at the small end of the cap (1), a ring (6) is fixedly connected with the threaded sleeve (9) at one end close to the cap (1), the ring (6) is fixedly connected with the connecting ring (3) through a plurality of connecting screws (5), a hollow threaded head (13) is threadedly connected in the threaded sleeve (9), a hexahedron (7) is fixedly connected with the threaded head (13) at one end outside the threaded sleeve (9), and a nozzle head (8) is arranged on the side of the hexahedron (7) away from the threaded head (13) and communicated with the threaded head (13).

2. A structure of an injection molding nozzle according to claim 1, characterized by: A sealing ring is arranged on the side of the threaded sleeve (9) facing the cap (1) and abuts against the cap (1).

3. A structure of an injection molding nozzle according to claim 1, characterized by: A plurality of small holes (16) are arranged at the edge of one side of the ring (6) in a ring shape and at equal intervals, and the connecting screws (5) are threadedly connected with the connecting ring (3) after penetrating the small holes (16).

4. A nozzle structure according to claim 3, wherein: A plurality of first protrusions (2) are fixedly arranged on the side of the connecting ring (3) facing the ring (6) in a ring shape and at equal intervals, a circular hole is arranged on the side of the first protrusion (2) facing the ring (6), a plurality of rectangular grooves (14) are arranged on the side of the connecting ring (3) away from the first protrusion (2) in a ring shape and at equal intervals, one end of the rectangular groove (14) extends into the first protrusion (2), a rectangular block (11) is arranged in the rectangular groove (14), a screw hole (12) aligned with the circular hole is arranged on one side of the rectangular block (11), and one end of the connecting screw (5) penetrates the circular hole and is threadedly connected in the screw hole (12).

5. A structure for an injection molding nozzle as defined in claim 4, wherein: A plurality of second protrusions (4) are fixedly arranged on the side of the connecting ring (3) facing the ring (6) in a ring shape and at equal intervals, a through hole is arranged on the side of the second protrusion (4) facing the ring (6), a plurality of fixing holes (15) are arranged on the side of the connecting ring (3) away from the second protrusion (4) in a ring shape and at equal intervals, the through hole is communicated with the fixing hole (15), and the second protrusion (4) and the first protrusion (2) are arranged alternately.

6. A structure for an injection molding nozzle as defined in claim 3, wherein: A plurality of arc-shaped openings (10) are arranged on one side of the ring (6) in a ring shape and at equal intervals, and the plurality of arc-shaped openings (10) and the plurality of small holes (16) are arranged alternately.

7. A structure for an injection molding nozzle as defined in claim 1, wherein: The hexahedron (7) and the threaded head (13) are in an integral molding structure, and the nozzle head (8) and the threaded head (13) are in an integral molding structure.

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