Forming die of sleeve for cable joint

Abstract

The utility model relates to a forming die of a sleeve for a cable joint. The forming die comprises a movable die and a fixed die positioned below the movable die, wherein a sprue gate is arranged above the movable mold, and a cavity matched with the peripheral surface of the sleeve is arranged between the movable mold and the fixed mold; the core pulling assembly is located between the movable mold and the fixed mold and comprises a left core pulling piece and a right core pulling piece which are located on the two sides of the movable mold; wherein the left core pulling piece comprises a first driving piece and a left core pipe arranged at the output end of the first driving piece, and a frustum is fixed to the end of the left core pipe; and the right core pulling piece comprises a second driving piece and a right core pipe arranged at the output end of the second driving piece, the left core pipe and the right core pipe are coaxially arranged, and a conical groove matched with the frustum is formed in the end of the right core pipe. According to the utility model, the structure is optimally designed, so that the production quality of the casing pipe can be improved, and the practicability is very good.

Description

Technical Field

[0001] The utility model relates to a mould, in particular to a forming mould for a sleeve for a cable joint. Background Art

[0002] The cable connector is used for connecting cables. The cable connector has a sleeve made of insulating material on the outside and an axial through cavity for installing the conductor on the inside. When the sleeve is injected, the outer cavity wall and the inner cavity wall need to be formed by cooperation. The outer cavity wall is formed by the cooperation of the movable mold and the fixed mold, and the inner cavity wall is formed by the core pulling mechanism. At present, the core pulling mechanism is formed by the cooperation of two left and right core pulling structures to form the inner cavity. However, during the cooperation process, due to the poor joining accuracy of the two core pulling structures (specifically, there is a deviation between the axis of the left core tube and the right core tube), glue leakage will occur. After the sleeve is formed, there will be obvious flash on the corresponding part, which affects the injection molding quality of the sleeve. For this reason, it is necessary to improve the defects existing in the prior art. Utility Model Content

[0003] The present application aims to solve the problems mentioned in the above background technology and provide a forming die capable of improving the production quality of sleeves.

[0004] The utility model discloses a forming die for a sleeve for a cable joint, comprising:

[0005] A movable mold and a fixed mold located below the movable mold;

[0006] Wherein, a pouring port is provided above the movable mold, and a cavity adapted to the outer peripheral surface of the sleeve is provided between the movable mold and the fixed mold;

[0007] A core pulling assembly located between the movable mold and the fixed mold, the core pulling assembly comprising a left core pulling piece and a right core pulling piece located on both sides of the movable mold;

[0008] Wherein, the left core-pulling member comprises a first driving member and a left core tube arranged at the output end of the first driving member, and a frustum is fixed at the end of the left core tube;

[0009] Wherein, the right core-pulling member includes a second driving member and a right core tube arranged at the output end of the second driving member, the left core tube and the right core tube are arranged coaxially, and the end of the right core tube is provided with a conical groove adapted to the frustum.

[0010] In a specific embodiment, the first driving member includes a bracket and a first cylinder fixed to the bracket, a wedge block is fixed to the output end of the first cylinder, a limiting hole is provided on the wedge block along the direction of the first cylinder, and a positioning pin is provided on the lower end surface of the movable mold which is inserted into the limiting hole for easy assembly. In addition, a limiting function is played by the cooperation of the positioning pin and the limiting hole.

[0011] In a specific embodiment, a connecting piece is fixed to the front end of the wedge block, the left core tube is fixedly connected to the connecting piece, a thread is provided on the outer peripheral side of the frustum, and the frustum is screwed to the left core tube. By screwing the frustum and the connecting piece, the characteristics of the thread can be used to prevent glue leakage, and the sealing effect is good.

[0012] In a specific embodiment, a bolt is provided at the center of the frustum, and the bolt is threadedly connected to the connecting piece, which is convenient for assembly and fixing.

[0013] In a specific embodiment, a cover plate and a bottom plate are fixed to the movable mold and the fixed mold respectively, the pouring port is arranged on the cover plate, and the pouring port is communicated with the mold cavity, which has a simple structure and is easy to implement.

[0014] In a specific embodiment, a linear bearing is fixed to the lower end surface of the movable mold, and a guide column is fixed to the upper end surface of the fixed mold. The guide column is inserted into the linear bearing to improve the stability of the movement of the movable mold and the fixed mold and facilitate positioning.

[0015] Beneficial effect: The utility model forms the outer cavity of the sleeve by the cooperation of the movable mold and the fixed mold, and forms the inner cavity by the cooperation of the left core pulling part and the right core pulling part. A frustum is provided on the left core tube, and a conical groove matching with the frustum is provided on the right core tube. When the left core tube and the right core tube are butted in place during injection molding, the frustum and the conical groove form a plug-in fit to ensure the butt joint accuracy of the left core tube and the right core tube, thereby preventing glue leakage at the joint, reducing the appearance of flash in the sleeve, and ensuring the production quality of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the molding die in this embodiment;

[0017] Figure 2 It is a structural diagram of the moving mold;

[0018] Figure 3 It is a structural schematic diagram of the fixed mold;

[0019] Figure 4 It is a structural schematic diagram of a left core pulling part and a right core pulling part;

[0020] Figure 5 It is a schematic diagram of the internal structure of the left core pulling part;

[0021] Figure 6 It is a structural schematic diagram of the right core-pulling part.

[0022] In the figure: 100, a forming mold for a sleeve for a cable connector; 1, a movable mold; 10, a cover plate; 11, a cavity; 12, a guide column; 2, a fixed mold; 21, a bottom plate; 3, a pouring port; 4, a left core-pulling member; 40, a first cylinder; 41, a bracket; 42, a wedge block; 43, a connecting member; 44, a left core tube; 45, a bolt; 46, a frustum; 5, a right core-pulling member; 50, a right core tube; 51, a conical groove. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "counterclockwise", "clockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] See also Figure 1-Figure 6, a forming mold 100 for a sleeve for a cable joint of the present embodiment comprises a movable mold 1 and a fixed mold 2 located below the movable mold 1; wherein a pouring port 3 is provided above the movable mold 1, and a cavity 11 adapted to the outer circumferential surface of the sleeve is provided between the movable mold 1 and the fixed mold 2; a core pulling assembly is located between the movable mold 1 and the fixed mold 2, and the core pulling assembly comprises a left core pulling member 4 and a right core pulling member 5 located on both sides of the movable mold 1; during injection molding, the core is pulled from both sides by the left core pulling member 4 and the right core pulling member 5, wherein the left core pulling member 4 comprises a first driving member and an output member provided on the first driving member The left core tube 44 at the end, the end of the left core tube 44 is fixed with a frustum 46; wherein, the right core-pulling member 5 includes a second driving member and a right core tube 50 arranged at the output end of the second driving member, the left core tube 44 and the right core tube 50 are coaxially arranged, and the end of the right core tube 50 is provided with a conical groove 51 adapted to the frustum 46; when the left core tube 50 and the right core tube 50 are docked in place, the frustum 46 and the conical groove 51 form a plug-in fit to ensure the docking accuracy of the left core tube 44 and the right core tube 50, thereby preventing glue leakage at the joint, reducing the appearance of burrs in the sleeve, and ensuring the production quality of the sleeve.

[0028] See also Figure 4 and Figure 5 The first driving member includes a bracket 41 fixedly connected to the movable mold 1 and a first cylinder 40 fixed to the bracket 41. A wedge block 42 is fixed to the output end of the first cylinder 40. The wedge block 42 is provided with a limiting hole arranged along the direction of the first cylinder 40. The lower end surface of the movable mold 1 is provided with a positioning pin inserted in the limiting hole for easy assembly. In addition, the cooperation of the positioning pin and the limiting hole plays a guiding and limiting role.

[0029] Continue to see Figure 5 A connecting piece 43 is fixed to the front end of the wedge block 42, the left core tube 44 is fixedly connected to the connecting piece 43, a thread is provided on the outer peripheral side of the cone 46, and the cone 46 is screwed to the left core tube 44. By screwing the cone 46 and the connecting piece 43, the characteristics of the thread can be used to prevent glue leakage, and the sealing effect is good.

[0030] The second driving member includes a support fixedly connected to the movable mold 1 and a second cylinder fixed to the support, a connecting block is fixed to the output end of the second cylinder, the outer end of the right core tube 50 is fixedly connected to the connecting block, and the right core tube 50 is driven to move when the cylinder rod of the second cylinder is extended and retracted.

[0031] A bolt 45 is provided at the center of the cone 46 , and the bolt 45 is threadedly connected to the connecting member 43 , so as to facilitate assembly and fixing.

[0032] See also Figure 2 and Figure 3A cover plate 10 and a bottom plate 21 are fixed to the movable mold 1 and the fixed mold 2, respectively. The pouring gate 3 is arranged on the cover plate 10. The pouring gate 3 is connected to the cavity, and has a simple structure and is easy to implement.

[0033] See also Figure 2 A linear bearing is fixed to the lower end surface of the movable mold 1, and a guide column 12 is fixed to the upper end surface of the fixed mold 2. The guide column 12 is inserted into the linear bearing to improve the stability of the movable mold 1 and the fixed mold 2 during relative movement and facilitate positioning.

[0034] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A forming die for a sleeve for a cable joint, characterized in that: include: A movable mold and a fixed mold located below the movable mold; Wherein, a pouring port is provided above the movable mold, and a cavity adapted to the outer peripheral surface of the sleeve is provided between the movable mold and the fixed mold; A core pulling assembly located between the movable mold and the fixed mold, the core pulling assembly comprising a left core pulling piece and a right core pulling piece located on both sides of the movable mold; Wherein, the left core-pulling member comprises a first driving member and a left core tube arranged at the output end of the first driving member, and a frustum is fixed at the end of the left core tube; Wherein, the right core-pulling member includes a second driving member and a right core tube arranged at the output end of the second driving member, the left core tube and the right core tube are arranged coaxially, and the end of the right core tube is provided with a conical groove adapted to the frustum.

2. A forming die for a cable joint sleeve as claimed in claim 1, characterized in that: The first driving member includes a bracket and a first cylinder fixed to the bracket, a wedge block is fixed to the output end of the first cylinder, a limiting hole is provided on the wedge block along the direction of the first cylinder, and a positioning pin is inserted into the limiting hole on the lower end surface of the movable mold.

3. A forming die for a cable joint sleeve as claimed in claim 2, characterized in that: A connecting piece is fixed to the front end of the wedge block, the left core tube is fixedly connected to the connecting piece, a thread is arranged on the outer peripheral side of the frustum, and the frustum is threadedly connected to the left core tube.

4. A forming die for a cable joint sleeve as claimed in claim 3, characterized in that: A bolt is provided at the center of the frustum, and the bolt is threadedly connected to the connecting piece.

5. The forming die of the cable joint sleeve according to claim 1, characterized in that: A cover plate and a bottom plate are fixed to the movable mold and the fixed mold respectively. The pouring port is arranged on the cover plate, and the pouring port is communicated with the mold cavity.

6. The forming die for a cable joint sleeve according to claim 1, characterized in that: A linear bearing is fixed to the lower end surface of the movable mold, and a guide column is fixed to the upper end surface of the fixed mold. The guide column is inserted into the linear bearing.

Images