A non-destructive plastic coating stripping device for cables

Abstract

The present invention relates to equipment for cable production and processing, and more specifically, to a non-destructive plastic coating stripping device for cables. The device comprises a base plate, a pressing and straightening mechanism disposed on the base plate, an upper stripping knife disposed on the pressing and straightening mechanism, and a lower stripping knife disposed on the base plate. The pressing and straightening mechanism comprises a pressing and clamping roller group arranged in a straight line on the base plate. The pressing and clamping roller group comprises two conical pressing rollers disposed on the base plate in correspondence with each other, with the conical surfaces of the pressing rollers facing downward. A clamping space is formed between the pressing rollers, and a pressing space is formed between the pressing rollers and the upper plate surface of the base plate. The present invention has the advantages of rapid stripping, no damage to the cable core, strong applicability, and reduced manual labor intensity.

Description

Technical Field

[0001] The invention relates to equipment for producing and processing cables, in particular to a device for non-destructive plastic coating stripping of cables. Background Art

[0002] During the plastic wrapping process for cable products, the molten plastic has self-adhesive properties. Therefore, this process must be continuous; any issues that arise during the process can cause product quality defects. These include human error, occasional equipment downtime, impurities in the material causing lumps, uneven plastic wrapping due to improper mold placement, and ambient temperature. Once these issues arise, the entire cable is either scrapped, resulting in significant financial losses, or repairs can be implemented and the product can be transferred to another order or inspected, inevitably leaving quality and safety risks.

[0003] To salvage the entire cable and ensure product quality and safety, current production practices commonly involve manual, non-destructive stripping (mechanical stripping is destructive and can damage the cable core), followed by re-wrapping. Manual stripping has the following disadvantages: 1. It increases labor intensity; 2. It can easily cause personal injury; 3. The stripping results are inconsistent, potentially damaging the cable core; and 4. It is inefficient. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-destructive cable plastic coating stripping device to solve the problems existing in the prior art.

[0005] The specific technical solutions of the present invention are as follows:

[0006] A non-destructive plastic coating stripping device for cables comprises a base plate, a pressing and straightening mechanism disposed on the base plate, an upper stripping knife disposed on the pressing and straightening mechanism, and a lower stripping knife disposed on the base plate; the pressing and straightening mechanism comprises a pressing and clamping roller set arranged in a straight line on the base plate, the pressing and clamping roller set comprising two conical pressing rollers disposed on the base plate in correspondence with each other, the conical surfaces of the pressing rollers facing downward, a clamping space formed between the pressing rollers, and a pressing space formed between the pressing rollers and the upper plate surface of the base plate;

[0007] Preferably, the pressing and clamping roller assembly includes two columns corresponding to each other and arranged on the base plate, a knife holder arranged between the two columns, the upper stripping knife is connected to the bottom of the knife holder, the pressing roller is sleeved on the columns and can move up and down along the columns, and a spring is provided between the top of the columns and the pressing roller;

[0008] Preferably, the knife holder includes a first crossbeam and a second crossbeam, the upper stripping knife is connected between the first crossbeam and the second crossbeam, an upper adjustment rod that can move up and down is provided at the bottom of the first crossbeam, the knife head of the stripping knife is hinged to the lower end of the upper adjustment rod, and the tail end of the upper stripping knife is hinged to the second crossbeam;

[0009] Furthermore, the base plate is provided with a knife groove with a top opening, a lower stripping knife and a lower adjustment rod movable up and down are provided in the knife groove, a knife head of the lower stripping knife is hinged to the upper end of the lower adjustment rod, and a tail end of the lower stripping knife is hinged to the inner wall of the knife groove;

[0010] Furthermore, an adjusting nut which can move up and down along the column is provided at the top end of the column, and the upper end of the spring is in contact with the adjusting nut.

[0011] The present invention has the following beneficial effects:

[0012] The present invention can directly utilize existing cable production equipment and install it in a suitable position. The cable passes through the present invention and is straightened and stripped under the action of traction. At the same time, its stripping depth is adjustable, and the cable plastic sheath is stripped quickly without damaging the cable core, reducing manual labor intensity and improving stripping efficiency. In addition, the present invention can be applied to the cable plastic sheath stripping operation of cables of different specifications, and the installation point can be freely selected, with strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 Side view of

[0015] Figure 3 This is a usage state diagram of the present invention. DETAILED DESCRIPTION

[0016] like Figure 1 and Figure 2The non-destructive plastic coating stripping device of a cable shown in the figure includes a base plate 1, a pressing and straightening mechanism 2 arranged on the base plate 1, an upper stripping knife 3 arranged on the pressing and straightening mechanism 2, and a lower stripping knife 4 arranged on the base plate 1; the pressing and straightening mechanism 2 is composed of a pressing and clamping roller group arranged in a straight line on the base plate 1, the pressing and clamping roller group includes two conical pressing rollers 5 arranged on the base plate 1 corresponding to each other, the conical surface of the pressing roller 5 faces downward, a clamping space is formed between the two pressing rollers 5, and a pressing space is formed between the pressing rollers 5 and the base plate 1; the pressing and clamping roller group includes two columns 6 arranged on the base plate 1 corresponding to each other, and a knife holder 7 arranged between the two columns 6, the upper stripping knife 3 is connected to the bottom of the knife holder 7, the pressing roller 5 is sleeved on the column 6 and can be moved along the column The column 6 moves up and down, and a spring 8 is provided between the top of the column 6 and the pressing roller 5; the knife holder 7 includes a first crossbeam 9 and a second crossbeam 10, and the upper stripping knife 3 is connected between the first crossbeam 9 and the second crossbeam 10. The bottom of the first crossbeam 9 is provided with an upper adjusting rod 11 which can move up and down thereon, and the blade head of the stripping knife is hinged to the lower end of the upper adjusting rod 11, and the tail end of the upper stripping knife 3 is hinged to the second crossbeam 10; a knife groove 12 with a top opening is provided on the base plate 1, and a lower stripping knife 4 and a lower adjusting rod 13 which can move up and down are provided in the knife groove 12, the blade head of the lower stripping knife 4 is hinged to the upper end of the lower adjusting rod 13, and the tail end of the lower stripping knife 4 is hinged to the inner wall of the knife groove 12; an adjusting nut 14 which can move up and down along the column 6 is provided at the top of the column 6, and the upper end of the spring 8 is in contact with the adjusting nut 14.

[0017] The specific working process of the present invention is as follows:

[0018] like Figures 1 to 3As shown, the present invention is installed at the steel cap position of the armored production line or at any input end platform with a traction machine, and clamps the cable 15 to be stripped of the plastic coating between the pressure-coating straightening mechanism 2 and the base plate 1, and the relative pressure-coating rollers 5 clamp the cable 15 therebetween, and adjust the position of the nut 14 on the column 6 according to the plastic coating material of the cable 15. The closer the nut 14 is to the pressure-coating roller 5, the greater the elastic pressure of the spring 8, thereby completing the setting of the pressure and clamping force of the pressure roller 5; the pressure roller 5 is acted upon by the elastic force of the spring 8, and the conical surface of the pressure roller 5 provides a downward pressure on the cable 15 and a force toward the cable. The clamping force is adjusted according to the thickness of the plastic coating of the cable 15 by adjusting the upper adjusting rod 11 and the lower adjusting rod 13, thereby setting the depth to which the upper stripping knife 3 and the lower stripping knife 4 cut into the plastic coating; after the present invention completes the setting of the pressure clamping force and the setting of the cutting depth of the plastic coating, the traction mechanism pulls the cable 15 through the present invention. When the cable 15 passes through, the pressure straightening mechanism 2 arranged in a straight line straightens the cable 15 through the pressure and clamping action of the cable 15 of the pressure roller 5. At the same time, the upper stripping knife 3 and the lower stripping knife 4 respectively cut the upper and lower skins of the plastic coating of the straightened cable 15, thereby dividing the plastic coating into two.

Claims

1. A non-destructive plastic coating stripping device for cables, characterized by: The invention comprises a base plate (1), a pressing and straightening mechanism (2) arranged on the base plate (1), an upper stripping knife (3) arranged on the pressing and straightening mechanism (2), and a lower stripping knife (4) arranged on the base plate (1); the pressing and straightening mechanism (2) is composed of a pressing and clamping roller group arranged in a straight line on the base plate (1), the pressing and clamping roller group comprises two conical pressing rollers (5) arranged on the base plate (1) in correspondence with each other, the conical surfaces of the pressing rollers (5) are downward, a clamping space is formed between the two pressing rollers (5), and a pressing space is formed between the pressing rollers (5) and the base plate (1); the pressing and clamping roller group comprises two columns (6) arranged on the base plate (1) in correspondence with each other, a knife holder (7) arranged between the two columns (6), the upper stripping knife (3) is arranged on the base plate (1), and the lower stripping knife (4) is arranged on the base plate (1); the pressing and straightening mechanism (2) is composed of a pressing and clamping roller group arranged in a straight line on the base plate (1), the pressing and clamping roller group comprises two conical pressing rollers (5) arranged on the base plate (1) in correspondence with each other, and a knife holder (7) arranged between the two columns (6). ) is connected to the bottom of the knife holder (7), the pressing roller (5) is mounted on the column (6) and can move up and down along the column (6), and a spring (8) is provided between the top of the column (6) and the pressing roller (5); the top of the column (6) is provided with an adjusting nut (14) which can move up and down along the column (6), and the upper end of the spring (8) is in contact with the adjusting nut (14); the knife holder (7) includes a first beam (9) and a second beam (10), the upper stripping knife (3) is connected between the first beam (9) and the second beam (10), and the bottom of the first beam (9) is provided with an upper adjusting rod (11) which can move up and down thereon, the blade head of the stripping knife is hinged to the lower end of the upper adjusting rod (11), and the tail end of the upper stripping knife (3) is hinged to the second beam (10).

2. A non-destructive plastic coating stripping device for cables according to claim 1, characterized in that: The base plate (1) is provided with a knife groove (12) with a top opening, and a lower stripping knife (4) and a lower adjustment rod (13) that can move up and down are provided in the knife groove (12), the knife head of the lower stripping knife (4) is hinged to the upper end of the lower adjustment rod (13), and the tail end of the lower stripping knife (4) is hinged to the inner wall of the knife groove (12).

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