Cable spacing belt longitudinal wrapping die

Abstract

The utility model discloses a cable spacing belt longitudinal wrapping die. The cable spacing belt longitudinal wrapping die comprises an inner die main body and an outer die main body, the heat insulation component is sleeved with the first cavity and provided with an eye mold mounting cavity and a heat insulation cavity, and the heat insulation cavity communicates with the second cavity; the eye mold main body is arranged in the eye mold mounting cavity, and is provided with a first through hole for a cable to extend and pass through and a second through hole for the interval belt to extend and pass through; a third through hole for the cable to extend and penetrate through is formed in the winding mold, the cross section of the winding mold is spiral, the winding mold is arranged in the heat insulation cavity, and the area of the cross section of the winding mold is gradually reduced in the cable advancing direction; and the spacing belt enters the winding mold from the second through hole, is gradually wound in the spiral-line-shaped winding mold and wraps the cable. According to the cable spacing belt longitudinal wrapping die, the spacing belt forms a circumferentially-closed cylindrical component to longitudinally wrap the cable, the usage amount of the spacing belt is reduced, and the raw material cost of the spacing belt is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable processing equipment, and more specifically, to a cable spacer band longitudinal wrapping mould. Background Art

[0002] Wire and cable products with special requirements usually wrap a layer of spacer tape around the insulated wire core or conductor cable core. The current process of wrapping the insulated wire core or conductor cable core with the spacer tape is a wrapping process, that is, wrapping the spacer tape around the insulated wire core or conductor cable core. However, the wrapping process has high material consumption and slow winding speed.

[0003] Therefore, the need to find a spacer strip longitudinal wrapping mold has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] One object of the present invention is to provide a new technical solution for a cable spacer tape longitudinal wrapping mold.

[0005] According to a first aspect of the present invention, a cable spacing band longitudinal wrapping mold is provided, comprising an inner mold and an outer mold which are connected with each other, an injection channel is formed between the inner mold and the outer mold to flow plastic material, the cable passes through the inner mold, the spacing band is driven by the cable to pass through the inner mold and longitudinally wrap around the cable, and is wrapped and formed by the plastic material, the inner mold comprises:

[0006] An inner mold body, wherein the inner mold body has a first cavity and a second cavity which are sequentially connected and arranged in a direction in which the cable travels;

[0007] A heat-insulating component, wherein the heat-insulating component is sleeved in the first cavity, and the heat-insulating component has an eye mold installation cavity and a heat-insulating cavity which are sequentially connected in the direction of cable travel, and the heat-insulating cavity is connected to the second cavity;

[0008] An eye mold body, the eye mold body is arranged in the eye mold installation cavity, and the eye mold body is provided with a first through hole for the cable to extend through, and a second through hole for the spacing belt to extend through;

[0009] A winding mold, wherein a third through hole is provided in the winding mold for the cable to extend through, the winding mold has a spiral cross section and is arranged in the heat insulation cavity, and the cross-sectional area of ​​the winding mold gradually decreases along the traveling direction of the cable;

[0010] The spacing belt enters the winding mold from the second through hole, and is gradually rolled up and wrapped around the cable in the spiral winding mold. The cross-sectional area of ​​at least part of the second cavity gradually decreases, and the spacing belt is tightened in the second cavity and is tightly attached to the cable.

[0011] Optionally, the spacing tape comprises a shielding tape and a tightening tape, wherein the shielding tape is located between the tightening tape and the cable; the shielding tape is aluminum foil; and the tightening tape is a heating self-adhesive Mylar tape.

[0012] Optionally, the first through hole is configured as a circular hole, the second through hole is configured as an arc hole or a strip hole, the arc hole is arranged concentrically with the circular hole, and the second through hole is located within the minimum inner diameter of the upstream side of the winding mold.

[0013] Optionally, the second through hole includes a first sub-hole and a second sub-hole for respectively arranging a shielding belt and a tightening belt, and the first sub-hole and the second sub-hole are located on the same side of the first through hole and are spaced apart from each other in a radial direction.

[0014] Optionally, the spacing bands in the winding mold have overlapping areas in the circumferential direction of the cable, the overlapping areas are separated by the winding mold, and are in overlapping contact after the spacing bands leave the winding mold and enter the second cavity.

[0015] Optionally, any cross-section of the winding mold has a first arc portion, a second arc portion and a third arc portion connected in sequence from the inside to the outside, the first arc portion and the third arc portion are overlapped in the circumferential direction and spaced apart from each other in the radial direction so that the spacing band forms the overlapping area, and the radial minimum distance between the first arc portion and the third arc portion is greater than or equal to the thickness of the spacing band.

[0016] Optionally, an end portion of the first arc-shaped portion is bent toward an inner side of the third through hole to form a guide portion.

[0017] Optionally, the winding mold is made of nylon insulation material, and at least part of the outer walls of the third arc portion and the second circular arc portion are connected to the inner wall of the insulation cavity.

[0018] Optionally, the end on the upstream side of the winding mold abuts against the inner surface of the eye mold body, the end on the downstream side of the winding mold is aligned with the end on the upstream side of the second cavity, and the maximum outer diameter of the downstream side end of the winding mold is less than or equal to the inner diameter of the upstream side end of the second cavity.

[0019] Optionally, the thermal insulation component is made of Teflon thermal insulation material.

[0020] A cable spacer longitudinal wrapping mold according to the present disclosure has the following beneficial effects:

[0021] In the winding mold, the cross-section of the winding mold is spiral-shaped, which is used to form a "6"-shaped component around the circumference of the cable with the spacing belt. In the "6"-shaped component, the outer edge of the spacing belt in the width direction at least covers the inner edge of the shielding belt in the width direction, so that the spacing belt forms a circumferentially closed cylindrical component that longitudinally covers the cable, thereby reducing the use of the spacing belt and reducing the cost of raw materials for the spacing belt.

[0022] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0024] Figure 1 A schematic structural diagram of a cable spacer longitudinal wrapping mold according to a preferred embodiment of the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure of the middle eye mold body;

[0026] Figure 3 for Figure 1 Another structural schematic diagram of the middle eye mold body;

[0027] Figure 4 for Figure 1 Another structural schematic diagram of the middle eye mold body;

[0028] Figure 5 It is a structural schematic diagram of the positions of the two when the winding mold forms an overlapping area with the spacing belt.

[0029] The following are marked in the figure:

[0030] 101-inner mold; 102-outer mold; 103-injection channel; 104-plastic material; 105-inner mold body; 107-second cavity; 108-heat insulating member; 109-eye mold body; 110-first through hole; 111-second through hole; 112-winding mold; 113-first sub-hole; 114-second sub-hole; 115-first arc portion; 116-second circular arc portion; 117-third arc portion; 118-guide portion; 119-cable; 120-spacer. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] According to a cable spacer tape longitudinal wrapping mold disclosed in the present invention, Figure 1 and Figure 2 As shown, it includes an inner mold 101 and an outer mold 102 which are connected inside and outside. An injection channel 103 is formed between the inner mold 101 and the outer mold 102 to flow a plastic material 104. A cable 119 passes through the inner mold 101. Driven by the cable 119, the spacing belt 120 passes through the inner mold 101 and is longitudinally wrapped on the cable 119, and is wrapped and formed by the plastic material 104. The inner mold 101 includes:

[0036] An inner mold body 105, wherein the inner mold body 105 has a first cavity and a second cavity 107 which are sequentially connected and arranged in a direction in which the cable 119 travels;

[0037] A heat-insulating member 108, wherein the heat-insulating member 108 is sleeved in the first cavity, and the heat-insulating member 108 has an eye mold installation cavity and a heat-insulating cavity which are sequentially connected in the direction of travel of the cable 119, and the heat-insulating cavity is connected to the second cavity 107;

[0038] An eye mold body 109, wherein the eye mold body 109 is disposed in the eye mold mounting cavity, and the eye mold body 109 is provided with a first through hole 110 for the cable 119 to extend through, and a second through hole 111 for the spacing belt 120 to extend through;

[0039] A winding mold 112, wherein a third through hole is provided in the winding mold 112 for the cable 119 to extend through, the winding mold 112 has a spiral cross section and is arranged in the heat insulation cavity, and the cross-sectional area of ​​the winding mold 112 gradually decreases along the traveling direction of the cable 119;

[0040] The spacing belt 120 enters the winding mold 112 from the second through hole 111, and is gradually rolled up and wrapped around the cable 119 in the spiral winding mold 112. The cross-sectional area of ​​at least part of the second cavity 107 gradually decreases, and the spacing belt 120 is tightened in the second cavity 107 and is tightly attached to the cable 119.

[0041] In the winding mold 112, the cross-section of the winding mold 112 is spiral-shaped, which is used to form a "6"-shaped component with the spacing band 120 around the circumference of the cable 119. In the "6"-shaped component, the outer edge of the spacing band 120 in the width direction at least covers the inner edge of the spacing band 120 in the width direction, so that the spacing band 120 forms a circumferentially closed cylindrical component longitudinally covering the cable 119, thereby reducing the usage of the spacing band 120 and reducing the raw material cost of the spacing band 120.

[0042] In a specific implementation, the cable 119 may be an insulated wire core with an insulating layer, or may be a conductor cable core without an insulating layer.

[0043] According to an embodiment of a cable spacer tape longitudinal wrapping mold disclosed herein, the spacer tape 120 includes a shielding tape and a tightening tape, the shielding tape is located between the tightening tape and the cable 119; the shielding tape is aluminum foil; and the tightening tape is a heated self-adhesive Mylar tape.

[0044] In the "6"-shaped component, the outer edge of the shielding tape at least covers the inner edge of the shielding tape, and the outer edge of the tightening tape protrudes from the outer edge of the shielding tape toward the downstream side along the winding direction to form a closed bonding area. After the "6"-shaped component enters the second cavity 107, the self-adhesive Mylar tape is heated, and the closed bonding area is bonded to the outer surface of the tightening tape located on the downstream side of the outer edge of the shielding tape along the winding direction, so that the shielding tape forms a circumferentially closed cylindrical component that longitudinally covers the cable 119.

[0045] The present invention forms a tubular shielding layer by longitudinally wrapping the shielding tape around the outer periphery of the cable 119. The shielding layer has a good shielding effect, is fully sealed, has a good waterproof effect, saves raw materials, and the shielding layer is wrapped around the outer periphery of the cable 119 by the cable spacer tape longitudinal wrapping mold at a fast speed, saving work hours.

[0046] Specifically, Figures 2 to 4 As shown, the first through hole 110 is configured as a circular hole, and the second through hole 111 is configured as an arc hole or a strip hole. Figure 4 As shown, the arc-shaped hole is arranged concentrically with the circular hole, and the second through hole 111 is located within the minimum inner diameter of the upstream side of the winding mold 112 .

[0047] The first through hole 110 is for the cable 119 to extend through, and the second through hole 111 is for the spacing band 120 to extend through, so as to maintain a stable positional relationship between the cable 119 and the spacing band 120. The second through hole 111 is located within the minimum inner diameter on the upstream side of the winding mold 112, so that when the spacing band 120 enters the third through hole of the winding mold 112, it is in a state of not contacting the inner wall of the winding mold 112. The second through hole 111 is constructed as an arc hole or a strip hole, which is suitable for the spacing band 120 to extend along the width direction.

[0048] More specifically, if Figure 3 As shown, the second through hole 111 includes a first sub-hole 113 and a second sub-hole 114 for respectively placing a shielding tape and a tightening tape, and the first sub-hole 113 and the second sub-hole 114 are located on the same side of the first through hole 110 and are spaced apart from each other in the radial direction, so that the shielding tape and the tightening tape do not affect each other when they leave their respective reels while following the cable 119.

[0049] According to an embodiment of a cable spacer tape longitudinal wrapping mold disclosed in the present invention, Figure 5 As shown, the spacing tape 120 located in the winding mold 112 has an overlapping area in the circumferential direction of the cable 119, and the overlapping area is separated by the winding mold 112, and overlaps and contacts after the spacing tape 120 leaves the winding mold 112 and enters the second cavity 107. A closed loop is formed in the circumferential direction of the spacing tape 120 through the overlapping area to wrap the outer circumference of the cable. For example: a closed loop is formed in the circumferential direction of the shielding tape through the overlapping area, so that the cable 119 plays a shielding role in the entire circumferential direction, and a closed bonding area is formed in the circumferential direction of the tightening tape through the overlapping area, so that the shielding tape is wrapped by the tightening tape.

[0050] Specifically, Figure 5 As shown, any cross section of the winding mold 112 has a first arc portion 115, a second arc portion 116 and a third arc portion 117 connected sequentially from the inside to the outside, the first arc portion 115 and the third arc portion 117 are overlapped in the circumferential direction and spaced apart from each other in the radial direction so that the spacing band 120 forms the overlapping area, and the minimum radial distance between the first arc portion 115 and the third arc portion 117 is greater than or equal to the thickness of the spacing band 120. The outer edge of the spacing band 120 is arranged between the first arc portion 115 and the third arc portion 117, so that the overlapping area formed by the spacing band 120 in the circumferential direction forms a cylindrical structure, and the spacing band 120 enters the second cavity 107 in the form of a cylindrical structure.

[0051] More specifically, if Figure 5As shown, the end of the first arc portion 115 is bent toward the inner side of the third through hole to form a guide portion 118. The guide portion 118 allows the outer edge of the spacing band 120 to enter between the first arc portion 115 and the third arc portion 117, so that the spacing band 120 forms a cylindrical structure with an overlapping area.

[0052] More specifically, the winding mold 112 is made of nylon heat-insulating material, and at least a portion of the outer walls of the third arc portion 117 and the second circular arc portion 116 are connected to the inner wall of the heat-insulating cavity.

[0053] The winding mold 112 is made of nylon heat-insulating material to ensure that when the spacer tape 120 is a heated self-adhesive Mylar tape, the heated self-adhesive Mylar tape is not heated.

[0054] According to an embodiment of a cable spacing band longitudinal wrapping mold disclosed in the present invention, the upstream end of the winding mold 112 abuts against the inner side of the eye mold body 109, and the downstream end of the winding mold 112 abuts against the upstream end of the second cavity 107, and the maximum outer diameter of the downstream end of the winding mold 112 is less than or equal to the inner diameter of the upstream end of the second cavity 107. When the spacing band 120 with the overlapping area formed in the axial direction enters the second cavity 107, it is not contacted by the inner circumferential wall of the second cavity 107, so that the cylindrical structure formed by the spacing band 120 smoothly enters the second cavity 107.

[0055] In specific implementation, the second cavity 107 is in a truncated cone shape, and the cavity inner diameter of the upstream end of the second cavity 107 is greater than or equal to the cavity inner diameter of the downstream end of the insulation cavity, and the cavity inner diameter of the second cavity 107 gradually decreases along the traveling direction of the cable 119, and the minimum inner diameter of the downstream side of the second cavity 107 is greater than or equal to the outer diameter of the cable 119 after being covered with the spacing band 120, so as to ensure that the inner wall of the second cavity 107 does not squeeze the spacing band 120.

[0056] According to an embodiment of a cable spacing band longitudinal wrapping mold disclosed in the present invention, the material of the heat insulation member 108 is Teflon heat insulation material. The Teflon heat insulation material can prevent the heat of the inner mold body 105 from being transmitted to the winding mold 112, preventing the appearance of the spacing band 120 in the winding mold 112 from changing, and affecting the quality of the spacing band 120 wrapping the outer periphery of the cable 119.

[0057] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cable spacer longitudinal wrapping mold, comprising an inner mold and an outer mold connected with each other, an injection channel is formed between the inner mold and the outer mold to flow plastic material, the cable passes through the inner mold, the spacer is driven by the cable to pass through the inner mold and longitudinally wrap around the cable, and is wrapped and formed by the plastic material, characterized in that: The inner mold comprises: An inner mold body, wherein the inner mold body has a first cavity and a second cavity which are sequentially connected and arranged in a direction in which the cable travels; A heat-insulating component, wherein the heat-insulating component is sleeved in the first cavity, and the heat-insulating component has an eye mold installation cavity and a heat-insulating cavity which are sequentially connected in the direction of cable travel, and the heat-insulating cavity is connected to the second cavity; An eye mold body, the eye mold body is arranged in the eye mold installation cavity, and the eye mold body is provided with a first through hole for the cable to extend through, and a second through hole for the spacing belt to extend through; A winding mold, wherein a third through hole is provided in the winding mold for the cable to extend through, the winding mold has a spiral cross section and is arranged in the heat insulation cavity, and the cross-sectional area of ​​the winding mold gradually decreases along the traveling direction of the cable; The spacing belt enters the winding mold from the second through hole, and is gradually rolled up and wrapped around the cable in the spiral winding mold. The cross-sectional area of ​​at least part of the second cavity gradually decreases, and the spacing belt is tightened in the second cavity and is tightly attached to the cable.

2. The cable spacer tape longitudinal wrapping mold according to claim 1, characterized in that: The spacing tape comprises a shielding tape and a tightening tape, wherein the shielding tape is located between the tightening tape and the cable; the shielding tape is an aluminum foil; and the tightening tape is a heating self-adhesive Mylar tape.

3. The cable spacer tape longitudinal wrapping mold according to claim 2, characterized in that: The first through hole is configured as a circular hole, the second through hole is configured as an arc hole or a strip hole, the arc hole is arranged concentrically with the circular hole, and the second through hole is located within the minimum inner diameter of the upstream side of the winding mold.

4. The cable spacer tape longitudinal wrapping mold according to claim 3, characterized in that: The second through hole includes a first sub-hole and a second sub-hole for respectively arranging a shielding belt and a tightening belt. The first sub-hole and the second sub-hole are located on the same side of the first through hole and are spaced apart from each other in a radial direction.

5. The cable spacer tape longitudinal wrapping mold according to claim 1, characterized in that: The spacing tapes in the winding mold have overlapping areas in the circumferential direction of the cable, the overlapping areas are separated by the winding mold, and are in overlapping contact after the spacing tapes leave the winding mold and enter the second cavity.

6. The cable spacer tape longitudinal wrapping mold according to claim 5, characterized in that: Any cross-section of the winding mold has a first arc portion, a second arc portion and a third arc portion connected in sequence from the inside to the outside, the first arc portion and the third arc portion are overlapped in the circumferential direction and spaced apart from each other in the radial direction so that the spacing band forms the overlapping area, and the radial minimum distance between the first arc portion and the third arc portion is greater than or equal to the thickness of the spacing band.

7. The cable spacer tape longitudinal wrapping mold according to claim 6, characterized in that: The end of the first arc-shaped portion is bent toward the inner side of the third through hole to form a guide portion.

8. The cable spacer tape longitudinal wrapping mold according to claim 7, characterized in that: The winding mold is made of nylon heat-insulating material, and at least a portion of the outer walls of the third arc portion and the second circular arc portion are connected to the inner wall of the heat-insulating cavity.

9. The cable spacer tape longitudinal wrapping mold according to claim 1, characterized in that: The end on the upstream side of the winding mold abuts against the inner surface of the eye mold body, the end on the downstream side of the winding mold is aligned with the end on the upstream side of the second cavity, and the maximum outer diameter of the downstream side end of the winding mold is less than or equal to the inner diameter of the upstream side end of the second cavity.

10. The cable spacer tape longitudinal wrapping mold according to claim 1, characterized in that: The thermal insulation component is made of Teflon thermal insulation material.

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