Mold positioning ring and mold

Abstract

The present invention discloses a mold positioning ring and a mold, which relates to the field of mold technology and solves the technical problem in the prior art that a large space is required for mold transportation and storage. The mold positioning ring of the present invention includes a positioning portion and a fixing portion. The positioning portion and the fixing portion are provided with avoidance holes for avoiding the hot runner nozzle and / or the injection molding machine nozzle. The mold positioning ring has a first installation state and a second installation state. When the mold positioning ring is in the first installation state, the avoidance hole provides space for the hot runner nozzle and the injection molding machine nozzle, and the positioning portion protrudes from the fixed panel of the mold; when the mold positioning ring is in the second installation state, the avoidance hole provides space for the hot runner nozzle, and the end face of the fixing portion is not higher than the surface of the fixed panel. The mold positioning ring has two installation states. It can not only be connected to the injection molding machine through the protruding positioning portion; it can also reduce the space required for mold transportation and storage, and protect all mold parts through the fixed panel.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, in particular to a mold positioning ring and a mold. Background Art

[0002] The mold locating ring is a component designed to ensure that the mold's sprue bushing or hot nozzle is level and fully aligned with the injection molding machine's nozzle when the mold is mounted on the injection molding machine. Once installed, the mold locating ring generally protrudes from the mounting panel, meaning its upper surface is higher than the mounting panel's surface.

[0003] Figure 1 It shows the structural diagram of the existing mold positioning ring. Figure 2 The figure shows a cross-sectional view of the existing mold positioning ring after installation. Figure 1 and 2 As shown, after the existing mold locating ring 1' is installed on the fixed panel 3, the hot runner nozzle 2 is located in the through-hole in the center of the existing mold locating ring 1'. However, the applicant has discovered that the existing mold locating ring has at least the following defects: the existing mold locating ring 1' protrudes from the surface of the fixed panel 3, requiring larger wooden boxes to package the molds during transportation; and when storing a large number of molds, the mold locating ring 1' protrudes from the surface of the fixed panel 3, making it impossible to stack the molds. The mold storage also requires a larger space, making it inconvenient to manage the molds.

[0004] Therefore, improving the existing mold positioning ring and providing a mold positioning ring that is convenient for mold management have become technical problems that need to be solved urgently by those skilled in the art. Summary of the Invention

[0005] One of the objectives of the present invention is to provide a mold retaining ring and mold that address the prior art technical problem of mold retaining rings protruding from the surface of the fixed panel, resulting in a significant space requirement for mold transportation and storage. The various technical benefits of the preferred technical solution of the present invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The mold positioning ring of the present invention includes a positioning portion and a fixing portion, and the positioning portion and the fixing portion are provided with avoidance holes for avoiding the hot runner nozzle and / or the injection molding machine nozzle, and the mold positioning ring has a first installation state and a second installation state. When the mold positioning ring is in the first installation state, the avoidance hole provides space for the hot runner nozzle and the injection molding machine nozzle, and the positioning portion protrudes from the fixed panel of the mold; when the mold positioning ring is in the second installation state, the avoidance hole provides space for the hot runner nozzle, and the end face of the fixing portion is not higher than the surface of the fixed panel.

[0008] According to a preferred embodiment, the avoidance hole includes a first avoidance hole and a second avoidance hole, wherein the first avoidance hole is located in the middle of the fixing part or in the middle of the positioning part and the fixing part; the second avoidance hole is located in the middle of the positioning part or in the middle of the positioning part and the fixing part, and the first avoidance hole provides space for the hot runner nozzle, and the second avoidance hole provides space for the hot runner nozzle, or the hot runner nozzle and the injection molding machine nozzle.

[0009] According to a preferred embodiment, the mold positioning ring further includes a hot nozzle sealing fixing hole, which is located between the first avoidance hole and the second avoidance hole, and the aperture of the hot nozzle sealing fixing hole is smaller than the apertures of the first avoidance hole and the second avoidance hole. When the mold positioning ring is in the first installation state, the hot nozzle sealing fixing hole is used to fix the hot runner hot nozzle.

[0010] According to a preferred embodiment, when the mold positioning ring is in the first installation state, the gap between the hot nozzle sealing fixing hole and the hot runner hot nozzle does not exceed 0.2 mm.

[0011] According to a preferred embodiment, when the mold positioning ring is in the first installation state or the second installation state, the upper end surface of the hot runner nozzle is lower than the surface of the fixed panel.

[0012] According to a preferred embodiment, a guide portion is provided on the positioning portion, and the guide portion is formed by gradually increasing the outer diameter of the positioning portion from the end surface thereof toward the end close to the fixing portion.

[0013] According to a preferred embodiment, a fixing hole is provided on the fixing portion, and when the mold positioning ring is in the first installation state or the second installation state, the fixing hole is used to fix the mold positioning ring on the fixed panel.

[0014] According to a preferred embodiment, the fixing holes include a plurality of first fixing holes and a plurality of second fixing holes, and the plurality of first fixing holes and the plurality of second fixing holes are respectively evenly distributed on the fixing part, and when the mold positioning ring is in a first installation state, the mold positioning ring is fixedly connected to the fixing panel through one of the first fixing hole and the second fixing hole; when the mold positioning ring is in a second installation state, the mold positioning ring is fixedly connected to the fixing panel through the other of the first fixing hole and the second fixing hole.

[0015] According to a preferred embodiment, a threaded structure is provided in the first fixing hole and / or the second fixing hole, and the threaded structure is located on a side of the first fixing hole close to the positioning portion and / or on a side of the second fixing hole away from the positioning portion.

[0016] The mold of the present invention includes the mold positioning ring described in any technical solution of the present invention.

[0017] The mold positioning ring and mold provided by the present invention have at least the following beneficial technical effects:

[0018] The mold positioning ring of the present invention has a first installation state and a second installation state. When the mold positioning ring is in the first installation state, the avoidance hole provides space for the hot runner nozzle and the injection molding machine nozzle, and the positioning part protrudes from the fixed panel of the mold and can be connected to the injection molding machine through the protruding positioning part; when the mold positioning ring is in the second installation state, the avoidance hole provides space for the hot runner nozzle, and the end face of the fixed part is not higher than the surface of the fixed panel. When the mold is transported and stored, the mold positioning ring is in the second installation state, which can reduce the space required for mold transportation and storage and facilitate mold management; on the other hand, the fixed panel is the largest structure in the mold, which has high strength and is not easy to damage. When the mold positioning ring is in the second installation state, the end face of the fixed part is not higher than the surface of the fixed panel, and the mold can be placed flat, so that all mold parts can be protected by the fixed panel during transportation.

[0019] That is, the mold positioning ring of the present invention has two installation states, which solves the technical problem in the prior art that the mold positioning ring protrudes from the surface of the fixed panel, resulting in a large space required for mold transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural diagram of the existing mold positioning ring;

[0022] Figure 2 This is a cross-sectional view of the existing mold positioning ring after installation;

[0023] Figure 3 Schematic diagram of the mold positioning ring of the present invention;

[0024] Figure 4 It is a top view of the mold positioning ring of the present invention;

[0025] Figure 5 is a cross-sectional view of the mold positioning ring of the present invention;

[0026] Figure 6is a cross-sectional view of the mold positioning ring of the present invention in a first installation state;

[0027] Figure 7 yes Figure 6 Enlarged view of part A;

[0028] Figure 8 is a cross-sectional view of the mold positioning ring of the present invention in a second installation state;

[0029] Figure 9 yes Figure 8 Magnified view of part B.

[0030] In the figure: 1', existing mold positioning ring; 1, mold positioning ring; 11, positioning part; 12, fixing part; 13, first avoidance hole; 14, second avoidance hole; 15, hot nozzle sealing fixing hole; 16, guide part; 17, first fixing hole; 18, second fixing hole; 2, hot runner hot nozzle; 3, fixing panel; 4, fixing screw. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0032] The following is attached with the instruction manual Figures 3 to 9 The mold positioning ring and the mold of the present invention are described in detail in Examples 1 to 3.

[0033] Example 1

[0034] This embodiment describes the mold positioning ring 1 of the present invention in detail.

[0035] The mold positioning ring 1 of this embodiment includes a positioning portion 11 and a fixing portion 12. Figures 3-5 Preferably, the positioning portion 11 and the fixing portion 12 are provided with avoidance holes for avoiding the hot runner nozzle 2 and / or the injection molding machine nozzle, and the mold positioning ring 1 has a first installation state and a second installation state. When the mold positioning ring 1 is in the first installation state, the avoidance holes provide space for the hot runner nozzle 2 and the injection molding machine nozzle, and the positioning portion 11 protrudes from the fixed panel 3 of the mold, as shown. Figure 6 and 7 When the mold positioning ring 1 is in the second installation state, the avoidance hole provides space for the hot runner nozzle 2, and the end surface of the fixing portion 12 is not higher than the surface of the fixed panel 3, as shown Figure 8 and 9The end surface of the fixing portion 12 refers to the end surface of the fixing portion 12 away from the positioning portion 11.

[0036] Preferably, the positioning portion 11 is used to position the injection molding machine, and the fixing portion 12 is used to be fixedly connected to the fixed panel 3. Preferably, the positioning portion 11 and the fixing portion 12 are an integrally formed structure. Preferably, when the mold positioning ring 1 is in the second installation state, the end surface of the fixing portion 12 is flush with the surface of the fixed panel 3.

[0037] The first installation state mentioned in this embodiment can also be said to be the normal installation state, that is, the state of the mold positioning ring 1 when the mold is assembled with the injection molding machine; the second installation state can also be said to be the reverse installation state, that is, the state of the mold positioning ring 1 when the mold is transported or stored.

[0038] The mold positioning ring 1 of this embodiment has a first installation state and a second installation state. When the mold positioning ring 1 is in the first installation state, the avoidance hole provides space for the hot runner nozzle 2 and the injection molding machine nozzle, and the positioning part 11 protrudes from the fixed panel 3 of the mold, and can be connected to the injection molding machine through the protruding positioning part 11; when the mold positioning ring 1 is in the second installation state, the avoidance hole provides space for the hot runner nozzle 2, and the end face of the fixed part 12 is not higher than the surface of the fixed panel 3. When the mold is transported and stored, the mold positioning ring 1 is in the second installation state, which can reduce the space required for mold transportation and storage and facilitate mold management; on the other hand, the fixed panel 3 is the largest structure in the mold, which has high strength and is not easy to damage. When the mold positioning ring 1 is in the second installation state, the end face of the fixed part 12 is not higher than the surface of the fixed panel 3, and the mold can be placed flat, so that all mold parts can be protected by the fixed panel 3 during transportation.

[0039] That is, the mold positioning ring 1 of this embodiment solves the technical problem that the existing mold positioning ring 1 ′ protrudes from the surface of the fixed panel 3 , which causes a large space to be required for mold transportation and storage.

[0040] According to a preferred embodiment, the avoidance hole includes a first avoidance hole 13 and a second avoidance hole 14. Figure 5 As shown. Preferably, the first avoidance hole 13 is located in the middle of the fixing portion 12 or in the middle of the positioning portion 11 and the fixing portion 12; the second avoidance hole 14 is located in the middle of the positioning portion 11 or in the middle of the positioning portion 11 and the fixing portion 12. More preferably, the first avoidance hole 13 provides space for the hot runner nozzle 2, and the second avoidance hole 14 provides space for the hot runner nozzle 2, or for the hot runner nozzle 2 and the injection molding machine nozzle. Figure 5 As shown, the first avoidance hole 13 is located in the middle of the fixing portion 12 ; the second avoidance hole 14 is located in the middle of the positioning portion 11 and the fixing portion 12 .

[0041] When the mold positioning ring 1 is in the first installation state, the first avoidance hole 13 and the second avoidance hole 14 provide space for the hot runner nozzle 2, and the second avoidance hole 14 also provides space for the injection molding machine nozzle. When the mold positioning ring 1 is in the second installation state, the first avoidance hole 13 and the second avoidance hole 14 provide space for the hot runner nozzle 2. That is, when the mold positioning ring 1 is in the first installation state, the hot runner nozzle 2 is located in the first avoidance hole 13 and the second avoidance hole 14, and the injection molding machine nozzle is also located in the second avoidance hole 14, as shown in FIG. Figure 6 When the mold positioning ring 1 is in the second installation state, the hot runner nozzle 2 is located in the first avoidance hole 13 and the second avoidance hole 14, as shown in FIG. Figure 8 Or as shown in 9.

[0042] The preferred technical solution of this embodiment uses the first avoidance hole 13 and the second avoidance hole 14 to avoid interfering with the hot runner nozzle 2 when the mold positioning ring 1 is in the first installation state and the second installation state, thereby realizing two installation states of the mold positioning ring 1.

[0043] According to a preferred embodiment, the mold positioning ring 1 further includes a hot nozzle sealing fixing hole 15, such as Figures 3-5 As shown. Preferably, the hot nozzle glue sealing fixing hole 15 is located between the first avoidance hole 13 and the second avoidance hole 14, and the aperture of the hot nozzle glue sealing fixing hole 15 is smaller than the aperture of the first avoidance hole 13 and the second avoidance hole 14. When the mold positioning ring 1 is in the first installation state, the hot nozzle glue sealing fixing hole 15 is used to fix the hot runner nozzle 2. Preferably, when the mold positioning ring 1 is in the first installation state, the gap between the hot nozzle glue sealing fixing hole 15 and the hot runner nozzle 2 does not exceed 0.2mm. The hot nozzle glue sealing fixing hole 15 of the preferred technical solution of this embodiment is designed based on the tolerance requirements with the hot runner nozzle 2. Specifically, the gap between the hot nozzle glue sealing fixing hole 15 and the hot runner nozzle 2 does not exceed 0.2mm, which can prevent the glue mouth from being injected into the hot runner during injection molding.

[0044] According to a preferred embodiment, when the mold positioning ring 1 is in the first installation state or the second installation state, the upper end surface of the hot runner nozzle 2 is lower than the surface of the fixed panel 3, such as Figures 6 to 9 As shown. Preferably, when the mold positioning ring 1 is in the first installation state or the second installation state, the upper end surface of the hot runner nozzle 2 is at least 2 mm lower than the surface of the fixed panel 3. In the preferred technical solution of this embodiment, when the mold positioning ring 1 is in the first installation state or the second installation state, the upper end surface of the hot runner nozzle 2 is lower than the surface of the fixed panel 3, and the fixed panel 3 can protect the hot runner nozzle 2.

[0045] According to a preferred embodiment, a guide portion 16 is provided on the positioning portion 11. Figures 3 to 9Preferably, the guide portion 16 is formed by gradually increasing the outer diameter of the positioning portion 11 from its end surface toward the end close to the fixing portion 12, as shown in FIG. Figure 5 The preferred technical solution of this embodiment is to set a guide part 16 on the positioning part 11, which can play a guiding role when installing the injection molding machine; and can also play a guiding role when the mold positioning ring 1 is reversed.

[0046] According to a preferred embodiment, a fixing hole is provided on the fixing portion 12, and when the mold positioning ring 1 is in the first installation state or the second installation state, the fixing hole is used to fix the mold positioning ring 1 on the fixed panel 3. Figures 6 to 9 As shown, the mold positioning ring 1 of the preferred technical solution of this embodiment is fixedly connected to the fixed panel 3 by installing the fixing screws 4 in the fixing holes.

[0047] According to a preferred embodiment, the fixing holes include a plurality of first fixing holes 17 and a plurality of second fixing holes 18, and the plurality of first fixing holes 17 and the plurality of second fixing holes 18 are evenly distributed on the fixing portion 12, such as Figure 3 As shown. Preferably, when the mold positioning ring 1 is in the first installation state, the mold positioning ring 1 is fixedly connected to the fixed panel 3 through one of the first fixing hole 17 and the second fixing hole 18. When the mold positioning ring 1 is in the second installation state, the mold positioning ring 1 is fixedly connected to the fixed panel 3 through the other of the first fixing hole 17 and the second fixing hole 18. The first fixing hole 17 mentioned in the preferred technical solution of this embodiment can also be said to be a countersunk hole for a normal-mounted screw, and the second fixing hole 18 can also be said to be a countersunk hole for a reverse-mounted screw. The "multiple" mentioned in the preferred technical solution of this embodiment can refer to two or more.

[0048] Preferably, the fixing holes include three first fixing holes 17 and three second fixing holes 18, such as Figure 3 As shown, the angle between two adjacent first fixing holes 17 is 120°, and the angle between two adjacent second fixing holes 18 is also 120°. The first fixing holes 17 and second fixing holes 18 of the preferred technical solution of this embodiment are evenly distributed on the fixing portion 12, which can enhance the stability of the connection between the mold positioning ring 1 and the fixed panel 3 when the mold positioning ring 1 is in the first installation state and the second installation state.

[0049] According to a preferred embodiment, a threaded structure is provided in the first fixing hole 17 and / or the second fixing hole 18, and the threaded structure is located on the side of the first fixing hole 17 close to the positioning portion 11 and / or on the side of the second fixing hole 18 away from the positioning portion 11. Preferably, at least one of the first fixing holes 17 is provided with a threaded structure, and at least one of the second fixing holes 18 is provided with a threaded structure. The threaded structure is also called a process tooth, which is not shown in the figure. It is a threaded structure that matches the surface of the screw in the existing structure. The preferred technical solution of this embodiment is to provide a threaded structure in the first fixing hole 17 and / or the second fixing hole 18, which can facilitate the disassembly and assembly between the mold positioning ring 1 and the fixed panel 3.

[0050] Specifically, when the mold positioning ring 1 is in the first installation state, the mold positioning ring 1 may be rusted and stuck to the fixed panel 3. When disassembling the mold positioning ring 1, after removing the fixing screws 4, the mold positioning ring 1 cannot be directly removed from the fixed panel 3 by hand. In this case, a screw that matches the thread structure in the first fixing hole 17 can be used to fix the screw to the thread structure in the first fixing hole 17. The mold positioning ring 1 can be separated from the fixed panel 3 by pulling the screw, thereby achieving the removal of the mold positioning ring 1. Similarly, when the mold positioning ring 1 is in the second installation state, the mold positioning ring 1 can also be conveniently separated from the fixed panel 3 through the thread structure in the second fixing hole 18.

[0051] Example 2

[0052] This embodiment describes the mold of the present invention in detail.

[0053] The mold of this embodiment includes the mold positioning ring 1 of any technical solution in Example 1. The mold of this embodiment includes the mold positioning ring 1 of any technical solution in Example 1, so that the mold can not only be connected to the injection molding machine, but also reduce the space required for mold transportation and storage during mold transportation and storage, facilitating mold management; and all mold parts can also be protected during transportation through the fixed panel 3.

[0054] The mold locating ring 1 of this embodiment is used to ensure that the hot runner nozzle 2 is level and completely aligned with the injection molding machine nozzle. It also prevents the glue nozzle from being injected into the hot runner. As can be seen, the mold of this embodiment includes not only the mold locating ring 1, but also the hot runner nozzle 2 and a fixed panel 3. The hot runner nozzle 2 is the glue inlet of the hot runner; the fixed panel 3 is fixed to the injection molding machine and protects the mold components.

[0055] According to a preferred embodiment, the mold of this embodiment is a hot runner mold.

[0056] Example 3

[0057] This embodiment describes in detail the installation method of the mold positioning ring 1 of any technical solution in Example 1.

[0058] According to a preferred embodiment, the mold positioning ring 1 of the preferred technical solution of this embodiment is installed in the following manner so that the mold positioning ring 1 is in the first installation state:

[0059] S11: Install the hot runner nozzle 2 of the mold;

[0060] S12: Install the fixed panel 3 of the mold and make the hot runner nozzle 2 at least 2 mm lower than the fixed panel 3;

[0061] S13: Install the mold positioning ring 1 on the fixed panel 3, and make the hot runner nozzle 2 located in the first avoidance hole 13 and the second avoidance hole 14. The gap between the hot runner nozzle 2 and the nozzle sealing fixing hole 15 does not exceed 0.2mm. The positioning part 11 of the mold positioning ring 1 protrudes from the fixed panel 3 of the mold. Use the fixing screw 4 to lock the mold positioning ring 1 and the fixed panel 3.

[0062] Preferably, when an injection molding machine needs to be connected, the injection molding machine can be guided and positioned by the positioning portion 11 of the mold positioning ring 1 , while the nozzle of the injection molding machine is located in the second avoidance hole 14 .

[0063] According to a preferred embodiment, the mold positioning ring 1 of the preferred technical solution of this embodiment is reversely installed in the following manner so that the mold positioning ring 1 is in the second installation state:

[0064] S21: Install the hot runner nozzle 2 of the mold;

[0065] S22: Install the fixed panel 3 of the mold and make the hot runner nozzle 2 at least 2 mm lower than the fixed panel 3;

[0066] S23: Install the mold positioning ring 1 on the fixed panel 3, and make the hot runner nozzle 2 located in the first avoidance hole 13 and the second avoidance hole 14. The end face of the fixed part 12 of the mold positioning ring 1 is flush with the surface of the fixed panel 3, and the mold positioning ring 1 and the fixed panel 3 are locked with the fixing screws 4.

[0067] The mold positioning ring 1 of this embodiment has two installation states, and its installation method is simple.

[0068] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0069] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0070] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A mold positioning ring, characterized in that: The mold positioning ring comprises a positioning portion (11) and a fixing portion (12), wherein the positioning portion (11) and the fixing portion (12) are provided with avoidance holes for avoiding a hot runner nozzle (2) and / or an injection molding machine nozzle, and the mold positioning ring has a first installation state and a second installation state. When the mold positioning ring is in a first installation state, the avoidance hole provides space for the hot runner nozzle (2) and the injection molding machine nozzle, and the positioning portion (11) protrudes from the fixed panel (3) of the mold; When the mold positioning ring is in the second installation state, the avoidance hole provides space for the hot runner nozzle (2), and the end surface of the fixing portion (12) is not higher than the surface of the fixing panel (3); The avoidance hole comprises a first avoidance hole (13) and a second avoidance hole (14), wherein: The first avoidance hole (13) is located in the middle of the fixing portion (12) or in the middle of the positioning portion (11) and the fixing portion (12); the second avoidance hole (14) is located in the middle of the positioning portion (11) or in the middle of the positioning portion (11) and the fixing portion (12), and The first avoidance hole (13) provides space for the hot runner nozzle (2), and the second avoidance hole (14) provides space for the hot runner nozzle (2), or for the hot runner nozzle (2) and the injection molding machine nozzle; The hot nozzle sealing glue fixing hole (15) is also included. The hot nozzle sealing glue fixing hole (15) is located between the first avoidance hole (13) and the second avoidance hole (14), and the aperture of the hot nozzle sealing glue fixing hole (15) is smaller than the apertures of the first avoidance hole (13) and the second avoidance hole (14). When the mold positioning ring is in a first installation state, the nozzle sealant fixing hole (15) is used to fix the hot runner nozzle (2); When the mold positioning ring is in the first installation state, the gap between the nozzle sealant fixing hole (15) and the hot runner nozzle (2) does not exceed 0.2 mm.

2. The mold positioning ring according to claim 1, characterized in that: When the mold positioning ring is in the first installation state or the second installation state, the upper end surface of the hot runner nozzle (2) is lower than the surface of the fixed panel (3).

3. The mold positioning ring according to claim 1, characterized in that: A guide portion (16) is provided on the positioning portion (11), and the guide portion (16) is formed by gradually increasing the outer diameter of the positioning portion (11) from its end surface toward the end close to the fixing portion (12).

4. The mold positioning ring according to claim 1, characterized in that: The fixing portion (12) is provided with a fixing hole, and when the mold positioning ring is in a first installation state or a second installation state, the fixing hole is used to fix the mold positioning ring on the fixed panel (3).

5. The mold positioning ring according to claim 4, characterized in that: The fixing holes include a plurality of first fixing holes (17) and a plurality of second fixing holes (18), the plurality of first fixing holes (17) and the plurality of second fixing holes (18) are evenly distributed on the fixing portion (12), and When the mold positioning ring is in a first installation state, the mold positioning ring is fixedly connected to the fixed panel (3) through one of the first fixing hole (17) and the second fixing hole (18); When the mold positioning ring is in the second installation state, the mold positioning ring is fixedly connected to the fixed panel (3) through the other of the first fixing hole (17) and the second fixing hole (18).

6. The mold positioning ring according to claim 5, characterized in that: A threaded structure is provided in the first fixing hole (17) and / or the second fixing hole (18), and the threaded structure is located on a side of the first fixing hole (17) close to the positioning portion (11) and / or on a side of the second fixing hole (18) away from the positioning portion (11).

7. A mold, characterized in that: The mold positioning ring comprises the mold positioning ring according to any one of claims 1 to 6.

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