Hot nozzle sheath of hot runner

Abstract

The utility model discloses a hot runner hot nozzle sheath, which relates to the technical field of mold auxiliary devices, and comprises a hot runner hot nozzle body and two groups of first sheaths, and further comprises a dismounting assembly which is arranged on the first sheaths and is convenient for assembling or disassembling the first sheaths and the hot runner hot nozzle body; the dismounting and mounting assembly comprises a sliding groove, the sliding groove is formed in the outer surface of a first protective sleeve, a first fixing shaft is installed in the sliding groove, the outer surface of the first fixing shaft is sleeved with a first spring and two movable plates, a second protective sleeve is installed on the outer sides of the movable plates, and a baffle is installed at the end of the second protective sleeve. A first fixing piece and a second fixing piece are installed on the outer sides of the two sets of first sheaths correspondingly. Through the cooperation between the positioning shaft and the positioning hole, the two sets of first sheaths are limited to be staggered up and down, meanwhile, through the cooperation between the movable frame and the second fixing piece, the first sheaths are limited, and then the two sets of first sheaths can be conveniently mounted or dismounted.

Description

Technical Field

[0001] This utility model relates to the field of mold auxiliary device technology, specifically a hot runner nozzle sleeve. Background Technology

[0002] Hot runner nozzles keep the plastic in the runner and gate in a molten state by heating, so that the runner and gate do not need to be removed during the injection molding process. They are heating components in injection molds used to inject molten plastic particles into the mold cavity.

[0003] The hot runner sleeve is a protective structure for the hot runner nozzle. The hot runner nozzle part of the hot runner system is in contact with high-temperature plastic for a long time, so it is easy to accumulate residues and dirt. Therefore, the hot runner nozzle often needs to be cleaned. However, when cleaning the hot runner nozzle, the hot runner nozzle sleeve needs to be removed. The hot runner nozzle sleeve in the existing technology is a one-piece design, which usually requires the use of screws and other structures to fix it. Therefore, the installation and removal of the hot runner nozzle sleeve is cumbersome and time-consuming. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a hot runner nozzle sleeve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot runner nozzle sheath, comprising a hot runner nozzle body and two sets of first sheaths, and further comprising:

[0006] The assembly and disassembly assembly is located on the first sheath, which facilitates the assembly or disassembly of the first sheath and the hot runner nozzle body.

[0007] The assembly / disassembly component includes a slide groove, which is formed on the outer surface of the first sheath. A first fixed shaft is installed inside the slide groove. A first spring and two sets of movable plates are sleeved on the outer surface of the first fixed shaft. A second sheath is installed on the outer side of the movable plates. A baffle is installed at the end of the second sheath. A first fixing member and a second fixing member are respectively installed on the outer sides of the two sets of first sheaths. A rotating member is hinged inside the first fixing member. A second fixed shaft is installed inside the rotating member. A second spring and two sets of movable frames are sleeved on the outer surface of the second fixed shaft. A positioning shaft is installed on one side of one set of first sheaths, and a positioning hole is formed on one side of the other set of first sheaths.

[0008] As described above, the first spring is elastically supported between the two sets of movable plates, and the baffle abuts against the upper and lower sides of the outer periphery of the hot runner nozzle body.

[0009] As mentioned above, the second spring is elastically supported between the two sets of movable frames.

[0010] As mentioned above, the movable frame is movably engaged with the second fixing member.

[0011] As described above, the outer sides of the two sets of first sheaths are in contact with each other, and when the two sets of first sheaths are in contact, they can form a ring. The first sheath covers the outer surface of the hot runner nozzle body.

[0012] As mentioned above, the positioning shaft is sleeved with the positioning hole, and both the second sheath and the first sheath are made of heat-insulating material.

[0013] Compared with the prior art, this hot runner nozzle sheath has the following advantages:

[0014] I. This utility model, through the cooperation between the positioning shaft and the positioning hole, can splice two sets of first sheaths and cover the outer periphery of the hot runner nozzle body. At this time, it will restrict the vertical misalignment of the two sets of first sheaths. At the same time, through the cooperation between the rotating part and the first fixed part, it can drive the movable frame to rotate. Since the second spring is in a compressed state, it will apply an elastic force to the movable frame. Thus, the first sheath can be limited by the cooperation between the movable frame and the second fixed part, thereby facilitating the installation or removal of the two sets of first sheaths.

[0015] Second, this utility model allows the movable plate to move along the outer surface of the first fixed shaft through the cooperation between the movable plate and the first fixed shaft. At the same time, the elastic force of the first spring applies an elastic force to the movable plate, thereby driving the second protective sleeve to move. This allows the two sets of baffles to abut against the upper and lower sides of the outer periphery of the hot runner nozzle body, increasing its protection range and enabling it to protect hot runner nozzle bodies of different lengths.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a cross-sectional view of the side of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0021] Figure 5This is a schematic diagram of the disassembly structure of the assembly and disassembly components of this utility model.

[0022] In the figure: 1. Hot runner nozzle body; 2. First sheath; 3. Slide groove; 4. First fixed shaft; 5. Movable plate; 6. First spring; 7. Second sheath; 8. Baffle; 9. First fixing component; 10. Second fixing component; 11. Rotating component; 12. Second fixed shaft; 13. Movable frame; 14. Second spring; 15. Positioning shaft; 16. Positioning hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, this utility model provides a hot runner nozzle sheath, including a hot runner nozzle body 1 and two sets of first sheaths 2, and also includes:

[0025] The assembly and disassembly assembly is located on the first sheath 2, which facilitates the assembly or disassembly of the first sheath 2 and the hot runner nozzle body 1.

[0026] The assembly and disassembly components include a slide 3, which is located on the outer surface of the first sleeve 2. A first fixed shaft 4 is installed inside the slide 3. A first spring 6 and two sets of movable plates 5 are sleeved on the outer surface of the first fixed shaft 4. A second sleeve 7 is installed on the outer side of the movable plates 5. A baffle 8 is installed at the end of the second sleeve 7. A first fixing member 9 and a second fixing member 10 are respectively installed on the outer sides of the two sets of first sleeves 2. A rotating member 11 is hinged inside the first fixing member 9. A second fixed shaft 12 is installed inside the rotating member 11. A second spring 14 and two sets of movable frames 13 are sleeved on the outer surface of the second fixed shaft 12. A positioning shaft 15 is installed on one side of one set of first sleeves 2, and a positioning hole 16 is opened on one side of the other set of first sleeves 2.

[0027] By cooperating with the positioning shaft 15 and the positioning hole 16, the two sets of first sheaths 2 can be spliced ​​and covered around the outer periphery of the hot runner nozzle body 1. At this time, the two sets of first sheaths 2 will be restricted from vertical misalignment. At the same time, by cooperating with the rotating part 11 and the first fixing part 9, the movable frame 13 can be driven to rotate. At this time, since the second spring 14 is in a compressed state, it will apply an elastic force to the movable frame 13. Thus, the first sheath 2 can be limited by cooperating with the movable frame 13 and the second fixing part 10, which facilitates the installation or removal of the two sets of first sheaths 2.

[0028] like Figure 3 , 4 As shown, the first spring 6 is elastically supported between the two sets of movable plates 5, and the baffle 8 abuts against the upper and lower sides of the outer periphery of the hot runner nozzle body 1.

[0029] The design of the first spring 6 enables the movable plate 5 to have good elastic reset performance. Since the first spring 6 is in a compressed state, it will apply an elastic force to the movable plate 5, so that the second sheath 7 can be moved by the movable plate 5, so that the two sets of baffles 8 can abut against the upper and lower sides of the outer periphery of the hot runner nozzle body 1, thereby protecting the hot runner nozzle body 1 of different lengths.

[0030] like Figure 2 As shown, the second spring 14 is elastically supported between the two sets of movable frames 13.

[0031] The design of the second spring 14 enables the movable frame 13 to have good elastic restoring performance. Since the second spring 14 is in a compressed state, it will apply an elastic force to the movable frame 13, thereby making the fit between the movable frame 13 and the second fixing member 10 tighter.

[0032] like Figure 2 As shown, the movable frame 13 is movably engaged with the second fixing member 10.

[0033] The movable frame 13 and the second fixed shaft 12 cooperate to allow the movable frame 13 to move up and down along the outer surface of the second fixed shaft 12. At the same time, the movable frame 13 and the second fixed member 10 cooperate to position the two sets of first protective sleeves 2.

[0034] like Figure 1 , 5 As shown, the outer sides of the two sets of first sheaths 2 are in contact with each other, and when the two sets of first sheaths 2 are in contact, they can form a ring. The first sheaths 2 cover the outer surface of the hot runner nozzle body 1.

[0035] By splicing two sets of first sheaths 2 together, they form a ring, which can then cover the outer periphery of the hot runner nozzle body 1, thus facilitating the protection of the hot runner nozzle body 1.

[0036] like Figure 5 As shown, the positioning shaft 15 is sleeved with the positioning hole 16, and both the second sheath 7 and the first sheath 2 are made of heat-insulating material.

[0037] The first sheath 2 can be positioned by the cooperation between the positioning shaft 15 and the positioning hole 16, which can prevent misalignment during installation, and the hot runner nozzle body 1 can be insulated by the second sheath 7 and the first sheath 2.

[0038] Working principle:

[0039] First, the two sets of first sheaths 2 are spliced ​​together by the cooperation between the positioning shaft 15 and the positioning hole 16. Then, the operator can rotate the rotating part 11. Through the cooperation between the rotating part 11 and the first fixed part 9, the movable frame 13 can be rotated. At the same time, through the elastic force of the second spring 14, the two sets of movable frames 13 will move in opposite directions. Thus, the first sheath 2 can be limited by the cooperation between the movable frame 13 and the second fixed part 10. At this time, through the elastic force of the first spring 6, the two sets of second sheaths 7 will be moved in opposite directions by the movable plate 5. At the same time, the movement of the second sheath 7 is restricted by the cooperation between the baffle 8 and the hot runner nozzle body 1. Thus, when the length of the first sheath 2 results in insufficient coverage, the coverage can be increased by the second sheath 7.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot runner nozzle sheath, comprising a hot runner nozzle body (1) and two sets of first sheaths (2), characterized in that, Also includes: The assembly and disassembly assembly is located on the first sheath (2) to facilitate the assembly or disassembly of the first sheath (2) and the hot runner nozzle body (1); The disassembly and assembly components include a slide groove (3), which is opened on the outer surface of the first sleeve (2). A first fixed shaft (4) is installed inside the slide groove (3). A first spring (6) and two sets of movable plates (5) are sleeved on the outer surface of the first fixed shaft (4). A second sleeve (7) is installed on the outer side of the movable plate (5). A baffle (8) is installed at the end of the second sleeve (7). A first fixing member (9) and a second fixing member (10) are respectively installed on the outer side of the two sets of first sleeves (2). A rotating member (11) is hinged inside the first fixing member (9). A second fixed shaft (12) is installed inside the rotating member (11). A second spring (14) and two sets of movable frames (13) are sleeved on the outer surface of the second fixed shaft (12). A positioning shaft (15) is installed on one side of one set of first sleeves (2), and a positioning hole (16) is opened on one side of the other set of first sleeves (2).

2. A hot runner nozzle sheath according to claim 1, characterized in that: The first spring (6) is elastically supported between two sets of movable plates (5), and the baffle (8) abuts against the upper and lower sides of the outer periphery of the hot runner nozzle body (1).

3. A hot runner nozzle sheath according to claim 1, characterized in that: The second spring (14) is elastically supported between the two sets of movable frames (13).

4. A hot runner nozzle sheath according to claim 1, characterized in that: The movable frame (13) is movably engaged with the second fixing member (10).

5. A hot runner nozzle sheath according to claim 1, characterized in that: The outer sides of the two sets of first sheaths (2) are in contact with each other, and when the two sets of first sheaths (2) are in contact, they can form a ring. The first sheaths (2) cover the outer surface of the hot runner nozzle body (1).

6. A hot runner nozzle sheath according to claim 1, characterized in that: The positioning shaft (15) is sleeved with the positioning hole (16), and both the second sheath (7) and the first sheath (2) are made of heat-insulating material.

Images