A saddle-shaped longitudinal sleeve packing process and mold capable of controlling fine adjustment without belt overturning

Abstract

The present invention discloses a saddle-shaped longitudinal sleeve wrapping process and mold that can be controlled to fine-tune without turning over the tape, which specifically includes the following steps: Step 1, mold assembly adjustment: first select a suitable molding mold according to the specifications of the cable to be processed, and clamp it into the wire-passing mold frame and fix it with pins; Step 2, cable pre-wrapping: pass a wire core through the inner mold, then put the paper tape on the pad, push it to the right, push the paper tape into the outer mold, and guide the tape through the tapered hole to make the paper tape roll up and wrap the wire core. The present invention relates to the field of cable processing technology. The saddle-shaped longitudinal sleeve wrapping process and mold that can be controlled to fine-tune without turning over the tape, through a fully enclosed form and a conical guide tape method, allows the softer paper tape to gradually shrink along the cone, and finally completes the effect of wrapping the wire core, which can effectively avoid problems such as leakage, turning over and wrinkling of the paper tape, and finally achieves a full extrusion and non-adhesion isolation effect for the cable.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing, in particular to a saddle-shaped longitudinal sleeve packaging process and a mold capable of controlling fine adjustment without overturning the belt. Background Art

[0002] In order to resist twisting, it is best to make the charging cable into a solid structure, but the solid structure requires that the sheath and insulation do not stick together. The conventional practice is to apply talcum powder. Such cables are more suitable for longer use occasions or places such as pipes and underground burials. However, for wire harness processing companies such as charging guns, talcum powder will cause serious on-site pollution, so the best measure to prevent adhesion is to wrap with paper tape or longitudinally isolate.

[0003] For example, Chinese patent CN106024150B discloses a new energy AC charging gun cable, which includes a power transmission line, a signal transmission line, an auxiliary line, a cotton paper layer and a TPE protective layer. The three power transmission lines and one signal transmission line are symmetrically arranged at the center of the circle, and the two auxiliary lines are symmetrically arranged on both sides of the signal transmission line. The gaps between the power transmission line, the signal transmission line and the auxiliary line are filled with fillers to form a core line, and the cotton paper layer and the TPE protective layer are sequentially wrapped on the core line from the inside to the outside. This patent uses a paper tape wrapping method to use a cotton paper layer for protection, which has the following problems during processing:

[0004] The current wrapping paper tape structure is not conducive to compacting the sheath material and is difficult to effectively prevent distortion. The longitudinal wrapping paper tape process is suitable for small wires, while charging cables are all large wires. The traditional longitudinal wrapping mold is open, and the paper tape is too soft to eliminate the opening and flipping of the overlapping parts of the wrapping tape. In addition, in actual use, the wrapping tape is generally not adjustable. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a saddle-shaped longitudinal sleeve wrapping process and mold that can be controlled for fine-tuning without flipping the tape, which solves the problem that the traditional longitudinal wrapping mold is open and the paper tape is too soft, making it difficult to eliminate the opening and flipping of the overlapping part of the wrapping tape; in addition, in actual use, the wrapping tape is generally not adjustable.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a saddle-shaped longitudinal sleeve packing process capable of controlling fine adjustment without turning over the belt, specifically comprising the following steps:

[0007] Step 1: Mold assembly and adjustment: First, select the appropriate molding mold according to the specifications of the cable to be processed, insert it into the wire passing mold frame, and fix it with pins;

[0008] Step 2: Cable pre-wrapping: Pass a wire core through the inner mold, then place the paper tape on the pad and push it to the right, push the paper tape into the outer mold, guide the tape through the tapered hole to roll up and wrap the wire core, then push the wire core to the right, push the paper tape out of the outer mold together, and then continue to push the wire core through the forming mold;

[0009] Step 3, fine-tuning: Then pass the wire core wrapped with paper tape through the injection mold, fix its right end on the traction device, and then pull the wire core to the right, and simultaneously complete the steps of wrapping the paper tape and injecting the outer skin. During this process, observe the state of the paper tape wrapping in real time. If there is a problem of wrinkling the paper tape or flipping up at the overlapping part, adjust the height of the inner mold by turning the first height adjustment bolt, loosen the positioning bolt, move the inner mold and the saddle frame to the left, and then adjust the paper tape.

[0010] The present invention also discloses a saddle-shaped longitudinal sleeve package mold which can be controlled for fine adjustment without overturning the belt, comprising an inner mold, an outer mold and a frame, wherein the outer mold is sleeved on the outside of the right half of the inner mold, and the outer mold is fixedly mounted on the top of the frame by fixing bolts, and the frame comprises a bottom plate, a pad is bonded to the top of the bottom plate and located on the left side of the outer mold, and retaining edges are bonded to the front and rear sides of the pad.

[0011] Two sets of saddle frames are slidably connected between the front and rear sides of the top of the bottom plate through positioning bolts, and the two sets of saddle frames are sleeved on the outside of the left half of the inner mold. The top of the saddle frame is threadedly connected with a first height adjustment bolt, and the bottom end of the first height adjustment bolt is rotatably connected to the top of the inner mold. The front and rear sides of the bottom plate are both provided with sliding grooves adapted to the positioning bolts.

[0012] Preferably, the outer surface of the left half of the inner mold is cylindrical, the outer surface of the right half is conical, and a conical hole matching the right half of the inner mold is provided inside the outer mold.

[0013] Preferably, a wire core penetrates the interior of the inner mold, and a paper tape is slidably arranged between the pad and the inner mold and between the inner mold and the outer mold.

[0014] Preferably, a socket matched with the bottom end of the first height adjustment bolt is opened on the top of the inner mold, a protrusion is fixedly connected to the bottom end of the first height adjustment bolt, and an elastic metal ring is fixedly connected to the inner wall of the socket and located above the protrusion.

[0015] Preferably, the top of the base plate and located on the right side of the outer mold is fixedly connected to the wire-passing mold frame through two front and rear sets of second height adjustment bolts, the surface of the second height adjustment bolt is threadedly connected to the inner surface of the base plate, and the top of the second height adjustment bolt is rotatably connected to the bottom of the wire-passing mold frame.

[0016] Preferably, the wire-passing mold frame includes a mold seat, a forming mold is clamped inside the mold seat, and the forming mold is fixedly connected to the top of the mold seat by a pin.

[0017] Preferably, a mounting stud is fixedly connected to the bottom of the base plate, and a support rod is threadedly connected to the surface of the mounting stud, and a top end of the support rod is fixedly connected to a support plate crimped to the bottom of the base plate. Beneficial Effects

[0018] The present invention provides a saddle-shaped longitudinal sleeve packing process and a mold capable of controlling fine adjustment without overturning the belt. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The process and mold for the saddle-shaped longitudinal sleeve wrapping with controllable fine adjustment and no overturning of the tape, comprises the following steps: in step 2, pre-wrapping of the cable: passing a wire core through the inner mold, and then placing a paper tape on a pad and pushing it to the right, pushing the paper tape into the outer mold, guiding the tape through the tapered hole so that the paper tape is rolled up and wraps the wire core, and then pushing the wire core to the right, pushing the paper tape out of the outer mold together, and then continuing to push the wire core through the forming mold, through the fully enclosed form and the conical guide tape method, the paper tape with a relatively soft material can gradually shrink along the cone, and finally complete the effect of wrapping the wire core, which can effectively avoid the problems of leakage, overturning and wrinkling of the paper tape, and finally achieve the isolation effect of full extrusion and non-adhesion for the cable.

[0020] (2) The saddle-shaped longitudinal sleeve wrapping process and mold that can be controlled to fine-tune without turning over the tape, through step three, fine-tuning: then the wire core wrapped with paper tape is passed through the injection mold, its right end is fixed on the traction device, and then the wire core is pulled to the right, and the steps of wrapping the paper tape and injecting the outer skin are completed simultaneously. During this process, the state of the paper tape wrapping is observed in real time. If there is a problem that the paper tape is wrinkled or turned up at the overlap, the height of the inner mold is adjusted by turning the first height adjustment bolt, and the positioning bolt is loosened to move the inner mold and the saddle frame to the left, and then the paper tape can be adjusted. The inner mold can be adjusted in advance and retreat so that the paper tape can only pass through a small space without turning over. The paper tape can be adjusted up and down without wrinkling, so that the wrapping effect can be controlled online at any time.

[0021] (3) The saddle-shaped longitudinal sleeve wrapping process and mold that can be controlled to fine-tune without turning over is fixedly connected to the wire-passing mold frame through two sets of front and rear second height adjustment bolts on the top of the bottom plate and on the right side of the outer mold. The surface of the second height adjustment bolt is threadedly connected to the inner surface of the bottom plate, and the top of the second height adjustment bolt is rotatably connected to the bottom of the wire-passing mold frame. The wire-passing mold frame includes a mold seat, and the mold seat is internally clamped with a forming mold, and the forming mold is fixedly connected to the top of the mold seat by a pin. The wire-passing mold frame can select a suitable forming mold for fixing according to the cable core of different wire diameters to ensure that the longitudinally wrapped semi-finished product can smoothly enter the sheath extruder head for final processing, and the forming mold can be easily replaced, thereby improving the versatility and scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of a local structure of the present invention;

[0024] Figure 3 is a cross-sectional view of the outer mold of the present invention;

[0025] Figure 4 A top view of the base plate of the present invention;

[0026] Figure 5 is a side sectional view of a saddle frame of the present invention;

[0027] Figure 6 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0028] In the figure: 1-inner mold, 101-jack, 102-bump, 103-elastic metal ring, 2-outer mold, 21-conical hole, 3-frame, 31-bottom plate, 32-pad, 33-rib, 34-slide, 35-mounting stud, 36-support rod, 37-support plate, 4-fixing bolt, 5-positioning bolt, 6-saddle frame, 7-first height adjustment bolt, 8-wire core, 9-paper tape, 10-second height adjustment bolt, 11-wire mold frame, 111-mold seat, 112-molding mold. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0030] See also Figure 1-6The present invention provides a technical solution: a saddle-shaped longitudinal sleeve packing process capable of controlling fine adjustment without turning over the belt, specifically comprising the following steps:

[0031] Step 1: Mold assembly and adjustment: First, select a suitable molding mold 112 according to the specifications of the cable to be processed, insert it into the wire passing mold frame 11, and fix it with pins;

[0032] Step 2, cable pre-wrapping: pass a wire core 8 through the inner mold 1, then place the paper tape 9 on the pad 32, and push it to the right, push the paper tape 9 into the outer mold 2, guide the tape 9 through the tapered hole 21 to roll up and wrap the wire core 8, then push the wire core 8 to the right, push the paper tape 9 out of the outer mold 2 together, and then continue to push the wire core 8 through the forming mold 112. Through the fully enclosed form and the conical guide tape method, the softer paper tape 9 can gradually shrink along the cone, and finally complete the effect of wrapping the wire core 8, which can effectively avoid the problems of paper tape leakage, tape flipping and wrinkling, and finally achieve the isolation effect of full extrusion and non-adhesion for the cable;

[0033] Step 3, fine-tuning: Then pass the wire core 8 wrapped with paper tape 9 through the injection mold, fix its right end on the traction device, and then pull the wire core 8 to the right, and simultaneously complete the steps of wrapping the paper tape 9 and injecting the outer skin. In this process, observe the state of the paper tape 9 wrapping in real time. If the paper tape 9 is wrinkled or flipped up at the overlap, adjust the height of the inner mold 1 by turning the first height adjustment bolt 7, loosen the positioning bolt 5, move the inner mold 1 and the saddle frame 6 to the left, and then adjust the paper tape 9. The inner mold 1 can be adjusted in advance and retreat so that the paper tape 9 can only pass through a small space without flipping over. The paper tape 9 can be adjusted up and down without wrinkles, so that the wrapping effect can be controlled online at any time.

[0034] The present invention also discloses a saddle-shaped longitudinal sleeve package mold that can be controlled to fine-tune without flipping the belt, comprising an inner mold 1, an outer mold 2 and a frame 3, wherein the outer mold 2 is sleeved on the outside of the right half of the inner mold 1, and the outer mold 2 is fixedly mounted on the top of the frame 3 by fixing bolts 4, the outer surface of the left half of the inner mold 1 is cylindrical, the outer surface of the right half is conical, and a conical hole 21 matching the right half of the inner mold 1 is opened inside the outer mold 2, the frame 3 comprises a bottom plate 31, a pad 32 is bonded to the top of the bottom plate 31 and located on the left side of the outer mold 2, and retaining edges 33 are bonded to the front and rear sides of the pad 32, the bottom of the bottom plate 31 is fixedly connected to a mounting stud 35, and the surface of the mounting stud 35 is threadedly connected to a support rod 36, and the top of the support rod 36 is fixedly connected to a support plate 37 crimped to the bottom of the bottom plate 31.

[0035] Two groups of saddle frames 6 are slidably connected between the front and rear sides of the top of the bottom plate 31 through positioning bolts 5, and the two groups of saddle frames 6 are both sleeved on the outside of the left half of the inner mold 1, the top of the saddle frame 6 is threadedly connected with a first height adjustment bolt 7, and the bottom end of the first height adjustment bolt 7 is rotatably connected to the top of the inner mold 1, the top of the inner mold 1 is provided with a socket 101 adapted to the bottom end of the first height adjustment bolt 7, the bottom end of the first height adjustment bolt 7 is fixedly connected with a protrusion 102, the inner wall of the socket 101 and above the protrusion 102 are fixedly connected with an elastic metal ring 103, and the front and rear sides inside the bottom plate 31 are provided with a slide groove 34 adapted to the positioning bolt 5;

[0036] A wire core 8 penetrates the interior of the inner mold 1 , and a paper tape 9 is slidably arranged between the pad 32 and the inner mold 1 and between the inner mold 1 and the outer mold 2 .

[0037] The top of the bottom plate 31 and the right side of the outer mold 2 are fixedly connected to the wire-passing mold frame 11 through two groups of front and rear second height adjustment bolts 10. The surface of the second height adjustment bolt 10 is threadedly connected to the inner surface of the bottom plate 31, and the top of the second height adjustment bolt 10 is rotatably connected to the bottom of the wire-passing mold frame 11. The wire-passing mold frame 11 includes a mold seat 111, and a molding mold 112 is clamped inside the mold seat 111, and the molding mold 112 is fixedly connected to the top of the mold seat 111 by a pin. The wire-passing mold frame 11 can select a suitable molding mold 112 for fixing according to cable cores of different wire diameters to ensure that the longitudinally wrapped semi-finished product can smoothly enter the sheath extruder head for final processing, and the molding mold 112 can be easily replaced, thereby improving the versatility and scope of application.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A mold used in the saddle-shaped longitudinal sleeve packing process that can be controlled to fine-tune without turning over the belt, The process includes the following steps; Step 1: mold assembly and adjustment: first, select a suitable molding mold (112) according to the specifications of the cable to be processed, insert it into the wire passing mold frame (11), and fix it with pins; Step 2, cable pre-wrapping: a wire core (8) is passed through the inner mold (1), and then a paper tape (9) is placed on the pad (32) and pushed to the right, and the paper tape (9) is pushed into the outer mold (2), and the paper tape (9) is rolled up and wrapped around the wire core (8) through the guidance of the tapered hole (21), and then the wire core (8) is pushed to the right, and the paper tape (9) is pushed out of the outer mold (2), and then the wire core (8) is continued to be pushed to pass through the forming mold (112); Step 3: fine-tuning: the wire core (8) wrapped with the paper tape (9) is then passed through the injection mold, and its right end is fixed on the traction device, and then the wire core (8) is pulled to the right, and the steps of wrapping the paper tape (9) and injecting the outer skin are completed simultaneously. During this process, the state of the paper tape (9) wrapping is observed in real time. If there is a problem that the paper tape (9) is wrinkled or the overlapping part is turned up, the height of the inner mold (1) is adjusted by turning the first height adjustment bolt (7), and the positioning bolt (5) is loosened, and the inner mold (1) and the saddle frame (6) are moved to the left, and then the paper tape (9) can be adjusted; The mold comprises an inner mold (1), an outer mold (2) and a frame (3), wherein the outer mold (2) is sleeved on the outside of the right half of the inner mold (1), and the outer mold (2) is fixedly mounted on the top of the frame (3) by means of fixing bolts (4), and is characterized in that: The frame (3) comprises a bottom plate (31), a backing plate (32) is bonded to the top of the bottom plate (31) and located on the left side of the outer mold (2), and retaining edges (33) are bonded to the front and rear sides of the backing plate (32); Two sets of saddle frames (6) are slidably connected between the front and rear sides of the top of the bottom plate (31) via positioning bolts (5), and the two sets of saddle frames (6) are sleeved on the outside of the left half of the inner mold (1), the top of the saddle frame (6) is threadedly connected with a first height adjustment bolt (7), and the bottom end of the first height adjustment bolt (7) is rotatably connected to the top of the inner mold (1), and the front and rear sides of the bottom plate (31) are provided with sliding grooves (34) adapted to the positioning bolts (5); The outer surface of the left half of the inner mold (1) is cylindrical, and the outer surface of the right half is conical, and a conical hole (21) matching the right half of the inner mold (1) is provided inside the outer mold (2); A wire core (8) penetrates the interior of the inner mold (1), and a paper tape (9) is slidably arranged between the pad (32) and the inner mold (1) and between the inner mold (1) and the outer mold (2); The top of the inner mold (1) is provided with a socket (101) adapted to the bottom end of the first height adjustment bolt (7); the bottom end of the first height adjustment bolt (7) is fixedly connected to a protrusion (102); an elastic metal ring (103) is fixedly connected to the inner wall of the socket (101) and located above the protrusion (102); The top of the bottom plate (31) and located on the right side of the outer mold (2) is fixedly connected to the wire-passing mold frame (11) through two groups of front and rear second height-adjusting bolts (10), the surface of the second height-adjusting bolt (10) is threadedly connected to the inner surface of the bottom plate (31), and the top of the second height-adjusting bolt (10) is rotatably connected to the bottom of the wire-passing mold frame (11); The bottom of the base plate (31) is fixedly connected to a mounting stud (35), and the surface of the mounting stud (35) is threadedly connected to a support rod (36), and the top end of the support rod (36) is fixedly connected to a support plate (37) crimped to the bottom of the base plate (31).

2. The mold used in the saddle-shaped longitudinal sleeve packing process capable of controlling fine adjustment without belt turning according to claim 1 is characterized in that: The wire-passing mold frame (11) comprises a mold seat (111), a forming mold (112) is clamped inside the mold seat (111), and the forming mold (112) is fixedly connected to the top of the mold seat (111) via a pin.

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