Steel skeleton elbow injection mold

Abstract

The utility model relates to the technical field of elbows, and provides a steel skeleton elbow injection mold aiming at the problem of insufficient mechanical strength of an existing steel skeleton elbow caused by displacement of a steel skeleton and the like in an injection molding stage, which comprises a mold cavity provided with a limiting component; the limiting assembly comprises a plurality of limiting plug pins which are arranged on the side wall face of the mold cavity and / or the end of the mold cavity in a penetrating mode. And the end part of the mold cavity is also provided with a loading and unloading assembly. According to the injection mold for the steel skeleton elbow, the position of the steel skeleton can be basically fixed in the injection molding process through the limiting assemblies, so that the situation that the use performance of the steel skeleton elbow is affected due to displacement of the steel skeleton caused by injection molding is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elbows, in particular to an injection mold for steel skeleton elbows. Background Art

[0002] Elbows are a very common pipe fitting in a piping system, playing important roles such as connection, diversion, and diversion, ensuring the normal operation and safety of the piping system. Elbows are mainly used to change the flow and direction of the pipeline, which can help the pipeline bypass obstacles, avoid stress concentration caused by the pipeline being too straight, reduce fluid resistance and pressure loss, etc. They are widely used in industries such as industry, construction, water supply, and drainage. Elbows are usually made of metal, plastic, or other materials. They can be divided into different bending angles according to the use requirements of different projects. The selection and installation of elbows have an important impact on the performance and efficiency of the piping system. Therefore, the assembly and adaptability of elbows have an important impact on their actual use.

[0003] For example, the patent with publication number CN218780931U provides a welded plastic elbow for a large-diameter water pipeline, including a main body, a reinforcement hoop and a sealing ring. The reinforcement hoop is locked on the main body, and the sealing ring is arranged between the main body and the reinforcement hoop. The main body is a double-section main body, which is composed of a front section of the main body and a rear section of the main body. The front section of the main body and the rear section of the main body are connected as a whole at a certain angle. The reinforcement hoop is composed of an upper hoop, a lower hoop, a connecting screw and a sealing gasket. The upper hoop and the lower hoop are relatively arranged and connected as a whole by a connecting screw. The sealing gasket is arranged at the connection between the upper hoop and the lower hoop.

[0004] However, the existing pipe elbows such as the above-mentioned ones have the following problems in actual use: in order to improve the strength and other properties of the elbow, a steel skeleton is usually introduced during the injection molding process so that it is integrally molded with the plastic elbow during the injection molding stage. However, during the injection molding process of the elbow, the steel skeleton is prone to displacement and other problems, resulting in the problem of unsatisfactory mechanical strength of the steel skeleton elbow. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of insufficient mechanical strength of existing steel frame elbows due to displacement of the steel frame during the injection molding stage. The application provides a steel frame elbow injection mold, which can keep the steel frame in a basically fixed position during the injection molding process through multiple limit assemblies to avoid displacement of the steel frame caused by injection molding, thereby affecting the performance of the steel frame elbow.

[0006] The utility model is realized by the following technical solutions:

[0007] A steel skeleton elbow injection mold includes a mold cavity, which is equipped with a limit assembly; the limit assembly includes a plurality of limit pins, which are respectively penetrated through the side wall surface of the mold cavity and / or the end of the mold cavity; the end of the mold cavity is also equipped with a loading and unloading assembly.

[0008] Preferably, the multiple limit pins include a multiple side wall pins and a multiple end pins, the side wall pins are penetrated through the side wall surface of the mold cavity, and the side wall pins can be detachably connected to the side wall surface of the mold cavity; the end pins are penetrated through the end of the mold cavity, and the end pins are detachably connected to the end of the mold cavity.

[0009] Preferably, a fixing ring is disposed at the end of the mold cavity, and the multiple end pins at any end of the mold cavity are detachably connected to the side wall surface of one of the fixing rings.

[0010] Preferably, the loading and unloading assembly is arranged on the side of the fixing ring away from the mold cavity; the loading and unloading assembly includes a mounting frame and a push plate, the mounting frame is mounted on the side of the fixing ring away from the mold cavity, the push plate is mounted on the side wall of the mounting frame, and the push plate can reciprocate toward the fixing ring.

[0011] Preferably, a plurality of connecting rods are passed through the fixing ring, one end of each of the connecting rods is detachably connected to a corresponding end pin, and the other end of the connecting rod is detachably connected to the push plate.

[0012] Preferably, an elastic member is arranged between the push plate and the fixing ring, and the elastic member is in a compressed or stretched state.

[0013] Preferably, the loading and unloading assembly further comprises a draw rod, one end of which is detachably connected to a side of the push plate away from the fixing ring, and the other end of which is disposed through the mounting frame.

[0014] Preferably, a power mechanism is arranged at one end of the draw rod away from the push plate, and the power mechanism comprises a telescopic cylinder, and the end of the draw rod is detachably connected to the telescopic shaft of the telescopic cylinder.

[0015] The technical solution of the utility model has the following beneficial effects:

[0016] The steel frame elbow injection mold of the utility model can keep the steel frame basically fixed in position during the injection molding process through multiple limit components, so as to avoid displacement of the steel frame caused by injection molding, thereby affecting the performance of the steel frame elbow. When in use, the limit components are first assembled in the injection mold, and after the product injection molding is completed, the limit pins are taken out, and a small amount of additional injection molding is performed to fill the space left after the limit pins are withdrawn, so that the steel frame elbow can be injection molded while ensuring the stability of the steel frame position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram from the first perspective of the steel skeleton elbow injection mold in Example 1;

[0019] Figure 2 This is a schematic structural diagram of the steel skeleton elbow injection mold in Example 1 from a second perspective;

[0020] Figure 3 This is a schematic diagram of the assembly structure of the steel skeleton elbow injection mold in Example 1;

[0021] Figure 4 This is a schematic diagram of the partial cross-section assembly structure of the steel skeleton elbow injection mold in Example 1.

[0022] Icons: 1-mold cavity, 11-injection table, 2-limiting pin, 21-side wall pin, 22-end pin, 3-fixing ring, 4-mounting frame, 5-push plate, 6-connecting rod, 61-elastic part, 7-pull rod, 81-telescopic cylinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] Example 1

[0027] like Figures 1 to 4 As shown, the present embodiment provides a steel skeleton elbow injection mold, including a mold cavity 1, and the mold cavity 1 is provided with a limit assembly; the limit assembly includes a plurality of limit pins 2, and the plurality of limit pins 2 are respectively penetrated through the side wall surface of the mold cavity 1 and the end of the mold cavity 1; wherein, the plurality of limit pins 2 located on the side wall surface of the mold cavity 1 are referred to as side wall pins 21, the side wall pins 21 are penetrated through the side wall surface of the mold cavity 1, and the side wall pins 21 can be connected with the side wall surface of the mold cavity 1 through a card slot; the plurality of limit pins 2 located at the end of the mold cavity 1 are referred to as end pins 22, the end pins 22 are penetrated through the end of the mold cavity 1, and the end pins 22 can also be connected with the end of the mold cavity 1 through a card slot.

[0028] In this embodiment, a fixing ring 3 is disposed at the end of the mold cavity 1 , and a plurality of end pins 22 at any end of the mold cavity 1 are snap-fitted with the inner wall of a fixing ring 3 through a groove concavely provided on the inner wall of the fixing ring 3 .

[0029] In this embodiment, a loading and unloading assembly is also provided at the end of the mold cavity 1, and the loading and unloading assembly is arranged on the side of the fixing ring 3 away from the mold cavity 1; the loading and unloading assembly includes a mounting frame 4 and a push plate 5, the mounting frame 4 is mounted on the side of the fixing ring 3 away from the mold cavity 1, the push plate 5 is mounted on the side wall of the mounting frame 4, and the push plate 5 can reciprocate toward the fixing ring 3.

[0030] In this embodiment, a plurality of connecting rods 6 are passed through the fixed ring 3, one end of each connecting rod 6 is in contact with an end pin 22, and the other end of the connecting rod 6 is screwed to the push plate 5; an elastic member 61 is arranged between the push plate 5 and the fixed ring 3. In this embodiment, the elastic member 61 is a spring, and the spring is in a compressed state, so that the push plate 5 can automatically return to its original position after each operation of the push plate 5.

[0031] In this embodiment, the loading and unloading assembly further includes a draw rod 7, one end of which is screwed to the side of the push plate 5 away from the fixing ring 3; the other end of the draw rod 7 is arranged through the mounting frame 4, and the end of the draw rod 7 away from the push plate 5 is provided with a power mechanism, which includes a telescopic cylinder 81, and the end of the draw rod 7 is welded to the telescopic shaft of the telescopic cylinder 81. In addition, the power assembly further includes a power supply and a controller, and the power supply and the controller are respectively electrically connected to the telescopic cylinder 81 to realize the electric drive control of the push plate 5 and provide power.

[0032] When the steel skeleton elbow injection mold of this embodiment is used, the mold cavity 1 is first set up on the injection molding table 11, and the limit assembly is assembled in the injection mold. After the product injection molding is completed, the limit pin 2 is taken out, and a small amount of additional injection molding is performed to fill the space left after the limit pin 2 is withdrawn, so that the steel skeleton elbow can be injection molded while ensuring the stability of the steel skeleton position. That is, through multiple limit assemblies, the steel skeleton can be kept in a basically fixed position during the injection molding process to avoid displacement of the steel skeleton caused by injection molding, thereby affecting the performance of the steel skeleton elbow.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel skeleton elbow injection mold, characterized in that: It comprises a mold cavity (1), wherein the mold cavity (1) is provided with a limiting component; The limiting assembly comprises a plurality of limiting pins (2), and the plurality of limiting pins (2) are respectively penetrated through the side wall surface of the mold cavity (1) and / or the end of the mold cavity (1); the end of the mold cavity (1) is also provided with a loading and unloading assembly.

2. The steel skeleton elbow injection mold according to claim 1, characterized in that: The plurality of limit pins (2) include a plurality of side wall pins (21) and a plurality of end pins (22); the side wall pins (21) are arranged on the side wall surface of the mold cavity (1), and the side wall pins (21) can be detachably connected to the side wall surface of the mold cavity (1); The end latch (22) is inserted through the end of the mold cavity (1), and the end latch (22) is detachably connected to the end of the mold cavity (1).

3. The steel skeleton elbow injection mold according to claim 2, characterized in that: The end of the mold cavity (1) is provided with a fixing ring (3), and the multiple end pins (22) at any end of the mold cavity (1) are detachably connected to the side wall surface of one of the fixing rings (3).

4. The steel skeleton elbow injection mold according to claim 3, characterized in that: The assembly and disassembly assembly is arranged on a side of the fixing ring (3) away from the mold cavity (1); The loading and unloading assembly comprises a mounting frame (4) and a push plate (5), wherein the mounting frame (4) is mounted on a side of the uncle fixing ring (3) away from the mold cavity (1), and the push plate (5) is mounted on a side wall of the mounting frame (4), and the push plate (5) can reciprocate toward the fixing ring (3).

5. The steel skeleton elbow injection mold according to claim 4, characterized in that: The fixing ring (3) is provided with a plurality of connecting rods (6), one end of each connecting rod (6) is detachably connected to a corresponding end pin (22), and the other end of the connecting rod (6) is detachably connected to the push plate (5).

6. The steel skeleton elbow injection mold according to claim 4, characterized in that: An elastic member (61) is arranged between the push plate (5) and the fixing ring (3), and the elastic member (61) is in a compressed or stretched state.

7. The steel skeleton elbow injection mold according to any one of claims 4 to 6, characterized in that: The loading and unloading assembly also includes a draw rod (7), one end of which is detachably connected to a side of the push plate (5) away from the fixing ring (3), and the other end of the draw rod (7) is disposed outside the mounting frame (4).

8. The steel skeleton elbow injection mold according to claim 7, characterized in that: The end of the draw rod (7) away from the push plate (5) is provided with a power mechanism, the power mechanism comprising a telescopic cylinder (81), and the end of the draw rod (7) is detachably connected to the telescopic shaft of the telescopic cylinder (81).

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