A pe coil unwinder

Abstract

The utility model discloses a kind of PE coil unwinders, including counterweight pedestal, vertically fixed with center shaft on counterweight pedestal, the surface of center shaft movably sheaths sleeve pipe, the circumference of sleeve pipe is equidistantly fixed with multiple extension rods, and the extension rod is provided with the supporting plate for supporting coil, and the bottom of extension rod is fixed with support roller, and support roller is rollingly connected with the upper surface of counterweight pedestal, and the surface of sleeve pipe is fixedly sleeved with fixed ring, and the circumference of fixed ring is equidistantly provided with spherical recess, and the top of center shaft is fixed with the fixed disc that sheaths in the outside of fixed ring. The utility model places the supporting plate on the extension rod by the PE coil, and counterweight pedestal is horizontally placed on ground, and it is stably placed under the action of its gravity and PE coil pressure, when pulling when spreading PE coil one end, supporting plate and extension pipe will rotate around center shaft, so that PE coil does not contact ground and can be unwound, to avoid surface scratch and wear problem.

Description

Technical Field

[0001] This utility model relates to the field of coil unwinding technology, specifically a PE coil unwinder. Background Technology

[0002] PE pipes are commonly used for water supply. At the end of production, long PE pipes are rolled up and packaged into coils for easy storage, transportation, and sales. Therefore, before laying and installing PE pipes, the coils need to be unrolled. Currently, there are no special unrolling tools for laying PE pipes. Workers usually unroll one end of the PE coil and then roll it forward on the ground in the direction of unrolling to spread it out. Another common and simpler method is to lay the PE coil flat on the ground and pull on the unrolled end, allowing it to rotate naturally and spread out. Both of these methods have drawbacks. PE pipes are carefully protected from impacts during production to prevent damage to their outer layer. However, during laying, the lack of protection and direct friction with the ground during unrolling results in many scratches and damage. This method is not only inconvenient for unrolling but also shortens the service life of the PE pipe due to damage to its outer layer, thus having shortcomings. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a PE coil unwinder, which solves the problem of PE coils being damaged and having their service life shortened due to the lack of specialized unwinding tools and the coils being directly unwound on the ground during installation.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A PE coil unwinder includes a counterweight base, a central shaft vertically fixed on the counterweight base, a sleeve movably fitted on the surface of the central shaft, multiple extension rods equidistantly fixed on the circumference of the sleeve, a support plate for supporting the coil on the extension rod, a support roller fixed at the bottom of the extension rod, the support roller being in rolling connection with the upper surface of the counterweight base, a fixing ring fixedly fitted on the surface of the sleeve, spherical grooves equidistantly arranged on the circumference of the fixing ring, a fixing plate fixedly fitted on the top of the central shaft outside the fixing ring, and a ball-head spring plunger movably engaging with the spherical grooves on the side of the fixing plate.

[0006] Preferably, at least four extension rods are fixed on the circumference of the sleeve, and the extension rods are horizontally arranged.

[0007] Preferably, the top of the extension rod is provided with fixing holes at equal intervals along the axial direction, and the support plate is movably installed on the extension rod by countersunk bolts and fixing holes.

[0008] Preferably, the support plate is a curved plate that bends upward on one side corresponding to the central axis and remains horizontal at the contact position with the extension rod.

[0009] Preferably, the fixed plate has a threaded hole along the radial direction, the ball-head spring plunger is movably inserted into the threaded hole, and an adjusting bolt is movably installed on the outside of the fixed plate through the threaded hole.

[0010] Preferably, the adjusting bolt is a hand-tightened Torx bolt, and at least two sets of the adjusting bolt and the ball-head spring plunger are symmetrically arranged on the fixed plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention places the PE coil flat on a support plate on an extension rod, with a counterweight base placed horizontally on the ground. The coil is stably positioned under its own weight and the pressure of the PE coil. When one end of the PE coil is unrolled and pulled, the support plate and extension rod rotate around the central axis, allowing the PE coil to be unwound without contacting the ground. This avoids surface scratches and wear, and prevents damage to the PE pipe's outer layer from shortening its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial orthographic view of the corresponding position of the counterweight base of this utility model;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a partial top view of the corresponding position of the counterweight base of this utility model;

[0017] Figure 5 This is a partial top view of the corresponding position of the pallet in this utility model;

[0018] Figure 6 This is a top cross-sectional view of the fixing ring of this utility model at the position corresponding to the spherical groove.

[0019] In the diagram: 1. Counterweight base; 2. Central shaft; 3. Sleeve; 4. Extension rod; 5. Support plate; 6. Support roller; 7. Fixing ring; 8. Spherical groove; 9. Fixing plate; 10. Ball head spring plunger; 11. Fixing hole; 12. Countersunk bolt; 13. Threaded hole; 14. Adjusting bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-6 As shown, this utility model provides a technical solution: a PE coil unwinder, including a counterweight base 1, a central shaft 2 vertically fixed on the counterweight base 1, a sleeve 3 movably sleeved on the surface of the central shaft 2, a plurality of extension rods 4 equidistantly fixed on the circumference of the sleeve 3, at least four extension rods 4 fixed on the circumference of the sleeve 3, and the extension rods 4 are horizontally arranged.

[0022] The extension rod 4 is provided with a support plate 5 for supporting the coil. The support plate 5 is a curved plate that bends upward on one side corresponding to the central shaft 2 and keeps the contact position with the extension rod 4 horizontal. The top of the extension rod 4 is provided with fixing holes 11 at equal intervals along the axial direction. The support plate 5 is movably installed on the extension rod 4 by countersunk bolts 12 and fixing holes 11. The bottom of the extension rod 4 is fixed with a support roller 6, which is rolledly connected to the upper surface of the counterweight base 1.

[0023] A retaining ring 7 is fixedly fitted onto the surface of the sleeve 3. Spherical grooves 8 are equidistantly arranged on the circumference of the retaining ring 7. A retaining plate 9 is fixed on the top of the central shaft 2 and fitted onto the outside of the retaining ring 7. A ball-head spring plunger 10 is installed on the side of the retaining plate 9 and is movably engaged with the spherical grooves 8. A threaded hole 13 is provided on the retaining plate 9 along the radial direction. The ball-head spring plunger 10 is movably inserted into the threaded hole 13.

[0024] An adjusting bolt 14 is movably installed on the outside of the fixed plate 9 through the threaded hole 13. The adjusting bolt 14 is a hand-tightening Torx bolt. At least two sets of adjusting bolts 14 and ball head spring plungers 10 are symmetrically arranged on the fixed plate 9.

[0025] Working principle:

[0026] Adjust the distance between the support plate 5 and the central shaft 2 according to the winding radius of the PE coil. Change the installation position through the countersunk bolt 12 and the fixing hole 11. Place the counterweight base 1 flat on the ground, and place the PE coil horizontally. Let the support plate 5 on the extension rod 4 support the PE coil. Unwind one end of the PE coil and pull it. Under the action of tangential tension, the support plate 5 and the extension rod will rotate around the central shaft 2, so that the PE coil can be unwound without contacting the ground. Change the pressure between the ball head spring plunger 10 and the spherical groove 8 by adjusting the bolt 14, so as to increase the rotation resistance of the sleeve 3, the extension rod 4 and the support plate 5. Avoid the problem of the PE coil being over-wound and having excess length in contact with the ground when the unwinding is paused in the middle due to the inertia of the sleeve 3, the extension rod 4 and the support plate 5. Achieve full protection and avoid the problem of the PE pipe surface being scratched and worn by contact with the ground.

Claims

1. A PE coil unwinder, characterized in that: The device includes a counterweight base (1), a central shaft (2) is vertically fixed on the counterweight base (1), a sleeve (3) is movably fitted on the surface of the central shaft (2), a plurality of extension rods (4) are fixed at equal intervals on the circumference of the sleeve (3), a support plate (5) for supporting the coil is provided on the extension rod (4), a support roller (6) is fixed at the bottom of the extension rod (4), the support roller (6) is tumblingly connected to the upper surface of the counterweight base (1), a fixing ring (7) is fixedly fitted on the surface of the sleeve (3), spherical grooves (8) are equidistantly provided on the circumference of the fixing ring (7), a fixing plate (9) is fixedly fitted on the top of the central shaft (2) outside the fixing ring (7), and a ball-head spring plunger (10) that is movably engaged with the spherical groove (8) is installed on the side of the fixing plate (9).

2. The PE coil unwinder according to claim 1, characterized in that: At least four extension rods (4) are fixed on the circumference of the sleeve (3), and the extension rods (4) are set horizontally.

3. A PE coil unwinder according to claim 1, characterized in that: The extension rod (4) has fixing holes (11) equidistantly arranged at the top along the axial direction. The support plate (5) is movably installed on the extension rod (4) by countersunk bolts (12) and fixing holes (11).

4. A PE coil unwinder according to claim 1, characterized in that: The tray (5) is a curved panel that bends upward on one side of the central axis (2) and remains horizontal in contact with the extension rod (4).

5. A PE coil unwinder according to claim 1, characterized in that: The fixed plate (9) has a threaded hole (13) arranged radially. The ball spring plunger (10) is movably inserted into the threaded hole (13). An adjusting bolt (14) is movably installed on the outside of the fixed plate (9) through the threaded hole (13).

6. A PE coil unwinder according to claim 5, characterized in that: The adjusting bolt (14) is a hand-tightening plumb bob, and the adjusting bolt (14) and the ball head spring plunger (10) are symmetrically arranged in two sets on the fixed plate (9).

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