Nozzle structure of hot runner

Abstract

The utility model discloses a nozzle structure of a hot runner, which relates to the technical field of injection molds and comprises a hot runner body and a protective cylinder, the protective cylinder is mounted at the bottom of the hot runner body, a glue passing mounting component is arranged on the inner wall of the protective cylinder, a guide cylinder is mounted in the middle of the bottom of a glue passing mounting disc, and a first glue passing needle is mounted at the bottom of a sealing cylinder. Glue guide cylinders are installed at the four corners of the bottom of the glue passing installation disc correspondingly, the protection effect on glue passing work of the hot runner body is achieved through the arranged protection cylinders, and the use sealing effect of the hot runner nozzle head is improved through the arranged first upper sealing ring and the arranged first lower sealing ring; a second upper sealing ring is arranged, so that the sealing effect of the inner wall of the hot runner body and a glue passing mounting disc is improved conveniently, a guide cylinder and a glue guide cylinder can guide liquid glue, glue passing is conducted on the liquid glue through a first glue passing needle head and a second glue passing needle head, and the glue injection molding efficiency is improved; and a second lower sealing ring is arranged to facilitate tight connection of the protective cylinder and the hot runner cooling water jacket.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a nozzle structure of a hot runner. Background Art

[0002] The hot runner in the prior art often just injects the liquid plastic directly into the mold through the cavity. There are many dead corners in the hot runner, which hinder the flow of the liquid plastic, easily cause blockage after cooling, and the glue injection point needs to be processed again.

[0003] A hot runner nozzle structure is proposed in the patent with publication number CN217258055U, which includes a hot runner body, a joint, an injection port, a cavity, a hot runner nozzle head, a hot runner inner needle, a needle head, a hot runner cooling water jacket, a mounting groove, and an outflow port. Liquid plastic is injected into the hot runner inner needle through the injection port and the cavity, and the hot runner inner needle is connected to the hot runner cooling water jacket, and the bottom end of the hot runner cooling water jacket and the needle head are provided with an outflow port corresponding to the outflow port, and the bottom end of the outflow port is flush with the bottom end of the needle head. From the main inlet to the needle head, there are not too many dead angles where the liquid plastic flows, so that it flows smoothly and is not easy to cause blockage, and the glue outlet point flowing out through the outflow port does not need to be Reprocessing improves the efficiency and quality of injection molding production and reduces the steps of reprocessing. When in use, the bottom end of the hot runner cooling water jacket 4 is connected to the injection end of the injection mold, and the output end of the injection molding machine is connected to the injection port 12. The liquid plastic flows through the injection port 12 to the inner side of the cavity 13, and then flows into the column hot runner inner needle 3 through the cavity 13 and the hot runner nozzle 2. Since a cooling device is provided on the outside, the flow of one glue is not so good. The needle 31 absorbs the heat energy of the injection molding machine glue to heat the glue, which is equivalent to the glue outlet being cold and hot together. It is ejected to the outlet 42 and flows into the mold, which allows the molded product to be quickly finalized, but there are still the following problems in this patent:

[0004] When the hot runner in the prior art injects liquid plastic into the mold through the cavity, only one needle is used to pass the plastic through the cavity, and the plastic passing speed is slow, which makes it difficult to quickly pass the plastic through the cavity.

[0005] In view of the above problems, it is necessary to design a nozzle structure of a hot runner to overcome the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a nozzle structure of a hot runner, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A nozzle structure of a hot runner comprises a hot runner body and a protective tube, wherein the bottom of the hot runner body is provided with a protective tube, and the inner wall of the protective tube is provided with a glue-through installation assembly;

[0009] The glue-through installation assembly comprises a second upper sealing ring arranged at the upper end of the inner wall of the protective tube, a glue-through installation disc is installed on the inner wall of the second upper sealing ring, a plurality of through holes are opened on the top of the glue-through installation disc, a guide cylinder is installed in the middle of the bottom of the glue-through installation disc, a sealing cylinder is installed at the bottom of the guide cylinder, a first glue-through needle is installed at the bottom of the sealing cylinder, glue-guiding cylinders are installed at the four corners of the bottom of the glue-through installation disc, and the bottoms of the four glue-guiding cylinders are all provided with second glue-through needles, and a second lower sealing ring is provided at the lower end of the inner wall of the protective tube;

[0010] A joint is provided on the top of the hot runner body, an injection port is opened on the top of the joint, a hot runner cooling water jacket is installed on the bottom of the protective tube, an auxiliary handle is installed on the front of the hot runner cooling water jacket, a chassis is installed on the bottom of the auxiliary handle, a hot runner nozzle is provided at the bottom of the hot runner body, a first upper sealing ring is provided at the upper end of the outer wall of the hot runner nozzle, and a first lower sealing ring is provided at the lower end of the outer wall of the hot runner nozzle.

[0011] As a preferred solution of the utility model, the hot runner body and the protective tube are detachably connected, the protective tube and the second upper sealing ring are detachably connected, and the second upper sealing ring and the glue-through mounting disc are detachably connected.

[0012] As a preferred solution of the utility model, the glue passing installation disc is detachably connected to the guide cylinder, the glue passing installation disc is detachably connected to the four glue guiding cylinders, the guide cylinder is detachably connected to the sealing cylinder, and the sealing cylinder is detachably connected to the first glue passing needle.

[0013] As a preferred solution of the utility model, the four glue guiding tubes are detachably connected to the second glue passing needle, and the protective tube is detachably connected to the second lower sealing ring.

[0014] As a preferred solution of the utility model, the hot runner body and the joint are detachably connected, the hot runner body and the first upper sealing ring are detachably connected, the first upper sealing ring and the hot runner nozzle are detachably connected, and the hot runner nozzle is detachably connected to the first lower sealing ring.

[0015] As a preferred solution of the utility model, the interior of the protective tube and the interior of the hot runner cooling water jacket are mutually connected, the protective tube and the hot runner cooling water jacket are detachably connected, the hot runner cooling water jacket and the auxiliary handle are detachably connected, and the auxiliary handle and the chassis are detachably connected.

[0016] Beneficial Effects

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The nozzle structure of the hot runner has a protective effect on the hot runner body's glue passing work through the provided protective tube, and the provided first upper sealing ring and the provided first lower sealing ring improve the sealing effect of the hot runner nozzle head. The provided second upper sealing ring facilitates the inner wall of the hot runner body and the glue passing mounting disc to improve the sealing effect. The provided guide tube and glue guide tube can guide the liquid glue, and the first glue passing needle and the second glue passing needle perform the glue passing work, thereby improving the efficiency of the injection glue, and the provided second lower sealing ring facilitates the protective tube to be tightly connected with the hot runner cooling water jacket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the hot runner nozzle structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the glue-through installation component of the utility model.

[0022] In the figure: 1. hot runner body; 2. protective cylinder; 3. glue through installation assembly; 4. joint; 5. injection port; 6. hot runner cooling water jacket; 7. auxiliary handle; 8. chassis; 9. first upper sealing ring; 10. hot runner nozzle; 11. first lower sealing ring; 301. second upper sealing ring; 302. glue through installation disc; 303. through hole; 304. guide cylinder; 305. sealing cylinder; 306. first glue through needle; 307. glue guide cylinder; 308. second glue through needle; 309. second lower sealing ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-3 As shown, a nozzle structure of a hot runner comprises a hot runner body 1 and a protective tube 2. The bottom of the hot runner body 1 is provided with the protective tube 2, and the inner wall of the protective tube 2 is provided with a glue-through installation component 3;

[0025] The glue-through installation assembly 3 comprises a second upper sealing ring 301 arranged at the upper end of the inner wall of the protective tube 2, a glue-through installation disc 302 is installed on the inner wall of the second upper sealing ring 301, a plurality of through holes 303 are opened on the top of the glue-through installation disc 302, a guide cylinder 304 is installed in the middle of the bottom of the glue-through installation disc 302, a sealing cylinder 305 is installed at the bottom of the guide cylinder 304, a first glue-through needle 306 is installed at the bottom of the sealing cylinder 305, glue guide cylinders 307 are installed at the four corners of the bottom of the glue-through installation disc 302, and the bottoms of the four glue guide cylinders 307 are all provided with second glue-through needles 308, and a second lower sealing ring 309 is provided at the lower end of the inner wall of the protective tube 2;

[0026] A joint 4 is provided at the top of the hot runner body 1, an injection port 5 is provided at the top of the joint 4, a hot runner cooling water jacket 6 is installed at the bottom of the protective tube 2, an auxiliary handle 7 is installed on the front of the hot runner cooling water jacket 6, a chassis 8 is installed at the bottom of the auxiliary handle 7, a hot runner nozzle 10 is provided at the bottom of the hot runner body 1, a first upper sealing ring 9 is provided at the upper end of the outer wall of the hot runner nozzle 10, and a first lower sealing ring 11 is provided at the lower end of the outer wall of the hot runner nozzle 10;

[0027] The hot runner body 1 is detachably connected to the protective tube 2, the protective tube 2 is detachably connected to the second upper sealing ring 301, the second upper sealing ring 301 is detachably connected to the glue passing installation disc 302, the glue passing installation disc 302 is detachably connected to the guide tube 304, the glue passing installation disc 302 is detachably connected to the four glue guide tubes 307, the guide tube 304 is detachably connected to the sealing tube 305, the sealing tube 305 is detachably connected to the first glue passing needle 306, the four glue guide tubes 307 are detachably connected to the second glue passing needle 308, The protective tube 2 is detachably connected to the second lower sealing ring 309, the hot runner body 1 is detachably connected to the joint 4, the hot runner body 1 is detachably connected to the first upper sealing ring 9, the first upper sealing ring 9 is detachably connected to the hot runner nozzle 10, the hot runner nozzle 10 is detachably connected to the first lower sealing ring 11, the interior of the protective tube 2 and the interior of the hot runner cooling water jacket 6 are interconnected, the protective tube 2 is detachably connected to the hot runner cooling water jacket 6, the hot runner cooling water jacket 6 is detachably connected to the auxiliary handle 7, and the auxiliary handle 7 is detachably connected to the chassis 8;

[0028] Among them, the protective tube 2 is provided to protect the glue passing work of the hot runner body 1, the first upper sealing ring 9 and the first lower sealing ring 11 are provided to improve the sealing effect of the hot runner nozzle 10, the second upper sealing ring 301 is provided to facilitate the inner wall of the hot runner body 1 and the glue passing mounting disc 302 to improve the sealing effect, the guide tube 304 and the glue guide tube 307 are provided to guide the liquid glue, and the first glue passing needle 306 and the second glue passing needle 308 are used to pass the glue, thereby improving the efficiency of the injection glue, and the second lower sealing ring 309 is provided to facilitate the protective tube 2 to be tightly connected with the hot runner cooling water jacket 6.

[0029] It should be noted that the utility model is a nozzle structure of a hot runner. When in use, liquid glue is injected into the joint 4 through the injection port 5 and circulated into the hot runner body 1. The hot runner nozzle head 10 guides the liquid glue through four glue guide tubes 307 and the guide tube 304 in the middle of the bottom of the glue-passing mounting disk 302. The first glue-passing needle 306 and the second glue-passing needle 308 circulate the liquid glue into the hot runner cooling water jacket 6, and the injection molding glue work can be performed quickly. The second upper sealing ring 301 improves the connection between the protective tube 2 and the glue-passing mounting disk 302, and the second lower sealing ring 309 improves the connection between the protective tube 2 and the hot runner cooling water jacket 6. The first upper sealing ring 9 and the hot runner nozzle head 10 facilitate the close connection between the hot runner nozzle head 10 and the hot runner body 1.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A nozzle structure of a hot runner, comprising a hot runner body (1) and a protective tube (2), characterized in that: A protective cylinder (2) is installed at the bottom of the hot runner body (1), and a glue-through installation component (3) is provided on the inner wall of the protective cylinder (2); The glue-through installation assembly (3) comprises a second upper sealing ring (301) arranged at the upper end of the inner wall of the protective tube (2); a glue-through installation disc (302) is installed on the inner wall of the second upper sealing ring (301); a plurality of through holes (303) are opened on the top of the glue-through installation disc (302); a guide cylinder (304) is installed in the middle of the bottom of the glue-through installation disc (302); a sealing cylinder (305) is installed at the bottom of the guide cylinder (304); a first glue-through needle (306) is installed at the bottom of the sealing cylinder (305); glue guide cylinders (307) are installed at the four corners of the bottom of the glue-through installation disc (302); the bottoms of the four glue guide cylinders (307) are each provided with a second glue-through needle (308); and a second lower sealing ring (309) is provided at the lower end of the inner wall of the protective tube (2); A joint (4) is provided at the top of the hot runner body (1), an injection port (5) is opened at the top of the joint (4), a hot runner cooling water jacket (6) is installed at the bottom of the protective tube (2), an auxiliary handle (7) is installed on the front of the hot runner cooling water jacket (6), a chassis (8) is installed at the bottom of the auxiliary handle (7), a hot runner nozzle (10) is provided at the bottom of the hot runner body (1), a first upper sealing ring (9) is provided at the upper end of the outer wall of the hot runner nozzle (10), and a first lower sealing ring (11) is provided at the lower end of the outer wall of the hot runner nozzle (10).

2. The nozzle structure of a hot runner according to claim 1, characterized in that: The hot runner body (1) and the protective tube (2) are detachably connected, the protective tube (2) and the second upper sealing ring (301) are detachably connected, and the second upper sealing ring (301) and the glue-through mounting disc (302) are detachably connected.

3. The nozzle structure of a hot runner according to claim 1, characterized in that: The glue passing installation disc (302) is detachably connected to the guide cylinder (304), the glue passing installation disc (302) is detachably connected to the four glue guiding cylinders (307), the guide cylinder (304) is detachably connected to the sealing cylinder (305), and the sealing cylinder (305) is detachably connected to the first glue passing needle (306).

4. The nozzle structure of a hot runner according to claim 1, characterized in that: The four rubber guiding tubes (307) are detachably connected to the second rubber passing needle (308), and the protective tube (2) is detachably connected to the second lower sealing ring (309).

5. The nozzle structure of a hot runner according to claim 1, characterized in that: The hot runner body (1) and the joint (4) are detachably connected, the hot runner body (1) and the first upper sealing ring (9) are detachably connected, the first upper sealing ring (9) and the hot runner nozzle (10) are detachably connected, and the hot runner nozzle (10) and the first lower sealing ring (11) are detachably connected.

6. The nozzle structure of a hot runner according to claim 1, characterized in that: The interior of the protective tube (2) and the interior of the hot runner cooling water jacket (6) are interconnected; the protective tube (2) and the hot runner cooling water jacket (6) are detachably connected; the hot runner cooling water jacket (6) and the auxiliary handle (7) are detachably connected; and the auxiliary handle (7) and the chassis (8) are detachably connected.

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