Plastic roll core for rolling PE (polyethylene) drip irrigation tape

Abstract

The plastic roll core is characterized in that end covers are detachably clamped at two ends of a roll core body, a plurality of groups of round holes are formed in the surface of the roll core body in a staggered manner, and first reinforcing ribs are arranged in the middle of the inner wall of the roll core body along the circumferential direction; a through hole is formed in the end cover; the periphery of the through hole is connected with the outer edge of the end cover through a second reinforcing rib; clamping grooves are evenly formed in the two ends of the roll core body in the circumferential direction, and limiting strips are arranged above the clamping grooves and embedded in the inner walls of the ends of the roll core body. A fixing groove is formed in the end cover in the circumferential direction, a buckle is arranged at the lower end of the fixing groove, and the buckle and the end cover are integrally formed. When the end covers are inserted into the roll core body, the limiting strips are matched with the fixing grooves, and the buckles are clamped into the clamping grooves, so that the plastic roll core is assembled and connected more stably, the end covers are not prone to deformation during use, the buckles have certain mobility, the end covers and the roll core body can be matched, fixed and plugged conveniently, and a product can be disassembled conveniently during rewinding.

Description

Technical Field

[0001] This utility model relates to the field of plastic products technology, and in particular to a plastic core for winding PE drip irrigation tape. Background Technology

[0002] PE inlaid drip irrigation tape is manufactured by embedding pre-made drippers into the inner wall of the tape during the manufacturing process. The drippers are embedded in the tape at certain intervals or continuously, and perforations are machined into the drippers to allow water to flow out in a dripping manner. As a precision low-pressure irrigation material, it is widely used in farmland irrigation systems.

[0003] After passing through a traction system during production, drip irrigation tape needs to be wound up by a winding machine after passing through various rollers. In existing production technologies, most of them use kraft paper cores for winding. The paper core has low strength and is prone to deformation and damage at both ends during use, making it impossible to fix. During winding and subsequent unwinding, there are phenomena such as eccentric rotation and deformation. In addition, the paper core also has problems such as uneven wall thickness and rough surface, which leads to wrinkles and misalignment of PE drip irrigation tape during winding, affecting the winding effect. In severe cases, it can even affect the unwinding of subsequent use, causing problems such as product deviation during the laying of drip irrigation tape. Utility Model Content

[0004] The purpose of this invention is to provide a plastic core for winding PE drip irrigation tape, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A plastic core for winding PE drip irrigation tape is characterized in that it includes a core body and end caps, the end caps are detachably snapped onto both ends of the core body, multiple sets of round holes are staggered on the surface of the core body, a first reinforcing rib is provided in the middle of the inner wall of the core body along the circumference; the end caps are provided with through holes, and the periphery of the through holes is connected to the outer edge of the end caps by a second reinforcing rib.

[0007] Preferably, the core body has slots evenly distributed around its two ends in the circumferential direction, and a limiting strip is provided above the slots. The limiting strip is embedded in the inner wall of the end of the core body. The end cap has a fixing groove around its circumferential direction, and a buckle is provided at the lower end of the fixing groove. The buckle is integrally formed with the end cap.

[0008] Preferably, there are 10 fixing grooves, and the height of the fixing grooves is greater than 25mm and less than the height of the end cap.

[0009] Preferably, there are four slots and four buckles.

[0010] Preferably, the fixing groove is located inside the end cap, and the fixing groove is offset from the card slot.

[0011] Preferably, the edge of the circular hole extends toward the inner side of the core body to form an arc-shaped recess.

[0012] Preferably, the second reinforcing rib includes a transverse reinforcing rib and a longitudinal reinforcing rib, wherein the depth of the transverse reinforcing rib is 14-15 mm and the depth of the longitudinal reinforcing rib is 21-22 mm.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model has end caps that can be detachably snapped onto both ends of the core body. Multiple sets of round holes are staggered on the surface of the core body. A first reinforcing rib is provided in the middle of the inner wall of the core body along the circumference. The end cap has a through hole, and the periphery of the through hole is connected to the outer edge of the end cap by a second reinforcing rib. The core body has slots evenly opened in the circumference at both ends. A limiting strip is provided above the slot and is embedded in the inner wall of the end of the core body. The end cap has a fixing groove in the circumference. A buckle is provided at the lower end of the fixing groove. The buckle is integrally formed with the end cap. When the end cap is inserted into the core body, the limiting strip matches the fixing groove, and the buckle snaps into the slot. Thus, the assembly and connection of the plastic core is more stable, and the end cap is not easily deformed during use. The buckle has a certain degree of mobility, which is conducive to the end cap and the core body being fixed and sealed together, and also facilitates disassembly when the product is rewound.

[0015] (2) This utility model improves the overall structural strength of the plastic core by cooperating with the first reinforcing rib on the core body and the second reinforcing rib on the end cap. It is not easily damaged during use and product storage and transportation and can be reused. By adjusting the different depths of the transverse and longitudinal reinforcing ribs of the second reinforcing rib, the plastic core and the winding machine are limited. When this utility model is installed on the winding machine, the insertion is more convenient and the connection is more stable.

[0016] (3) The core body of this utility model is integrally injection molded, with uniform wall thickness and smooth surface. The edges of the round holes on its surface extend toward the inner side of the core body to form an arc-shaped depression, which effectively solves the problem of uneven surface and slippage during winding of conventional core products in the prior art. At the same time, the core body of this utility model also saves material usage and effectively solves the problem of wrinkles and misalignment of PE drip irrigation tape during winding caused by uneven core wall thickness and rough surface, which affects the winding effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1A sectional view;

[0019] Figure 3 This is a cross-sectional view of the core body of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point A;

[0021] Figure 5 This is a cross-sectional view of the end cap of this utility model;

[0022] Figure 6 This is a top view of the end cap of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] like Figures 1 to 6 As shown, a plastic core for winding PE drip irrigation tape includes a core body 1, an end cap 2, a round hole 3, a first reinforcing rib 4, a second reinforcing rib 5, a slot 6, a limiting strip 7, a fixing groove 8, a buckle 9, a transverse reinforcing rib 10, a longitudinal reinforcing rib 11, and a through hole 12.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 6As shown, the core body 1 has end caps 2 that can be detachably snapped onto both ends. Multiple sets of circular holes 3 are offset on the surface of the core body 1. A first reinforcing rib 4 is provided circumferentially along the middle of the inner wall of the core body 1. The end cap 2 has through holes 12, and the periphery of the through holes 12 is connected to the outer edge of the end cap 2 by second reinforcing ribs 5. The second reinforcing rib 5 includes transverse reinforcing ribs 10 and longitudinal reinforcing ribs 11. The depth of the transverse reinforcing rib 10 is 14-15 mm, and the depth of the longitudinal reinforcing rib 11 is 21-22 mm. The first reinforcing rib 4 on the core body 1 cooperates with the second reinforcing rib 5 on the end cap 2, improving the overall structural strength of the plastic core. This ensures that the core is not easily damaged during use, storage, and transportation, and allows for reuse. By adjusting the different depths of the transverse reinforcing ribs 10 and longitudinal reinforcing ribs 11 of the second reinforcing rib 5, the plastic core is positioned relative to the winding machine. When this invention is installed on the winding machine, insertion is more convenient, and the connection is more stable.

[0028] The core body 1 has evenly spaced slots 6 at both ends along its circumference. A limiting strip 7 is positioned above each slot 6 and is embedded in the inner wall of the end of the core body 1. The end cap 2 has 10 fixing slots 8 along its circumference. The height of each fixing slot 8 is greater than 25mm and less than the height of the end cap 2. There are 4 slots 6 and 4 latches 9. The fixing slots 8 are located inside the end cap 2 and are offset from the slots 6. A latch 9 is located at the lower end of each fixing slot 8 and is integrally formed with the end cap 2.

[0029] When the end cap 2 is inserted into the core body 1, as follows Figures 1 to 2 As shown, the limiting strip 7 is adapted to the fixing groove 8, and the buckle 9 is inserted into the groove 6. This makes the assembly and connection of the plastic core more stable, and the end cap 2 is less prone to deformation during use. Furthermore, the buckle 9 has a certain degree of mobility, facilitating the matching and sealing of the end cap 2 and the core body 1, and also making disassembly during product rewinding easier. In this embodiment, the core body 1 is integrally injection molded with uniform wall thickness and a smooth surface. The edges of the round holes 3 on its surface extend towards the inner side of the core body 1 to form an arc-shaped recess, effectively solving the problem of uneven surface and slippage during winding in conventional core products of the prior art. At the same time, the core body 1 of this invention also saves material usage and effectively solves the problem of wrinkles and misalignments in PE drip irrigation tape caused by uneven core wall thickness and rough surface in the prior art, which affects the winding effect.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any modifications, equivalent changes, or improvements made in accordance with the claims of this utility model shall still fall within the scope of this utility model.

Claims

1. A plastic core for winding PE drip irrigation tape, characterized in that: The application relates to a winding core body (1) and an end cover (2), the winding core body (1) is detachably connected with the end cover (2) at both ends, a plurality of groups of round holes (3) are arranged on the surface of the winding core body (1) in a staggered mode, a first reinforcing rib (4) is arranged on the inner wall of the winding core body (1) in a circumferential mode, a through hole (12) is arranged on the end cover (2), and the through hole (12) is connected with the outer eaves of the end cover (2) through a second reinforcing rib (5) in a peripheral mode.

2. The plastic core for PE drip irrigation tape winding according to claim 1, characterized in that: The winding core body (1) is uniformly provided with clamping grooves (6) in a circumferential mode at both ends, a limiting strip (7) is arranged above the clamping grooves (6), the limiting strip (7) is embedded in the inner wall of the end part of the winding core body (1), the end cover (2) is provided with fixing grooves (8) in a circumferential mode, the lower end of the fixing grooves (8) is provided with buckles (9), and the buckles (9) are integrally formed with the end cover (2).

3. The plastic core for PE drip irrigation tape winding according to claim 2, characterized in that: The fixing grooves (8) are 10 in number, the height of the fixing grooves (8) is greater than 25 mm and smaller than the height of the end cover (2).

4. The plastic core for PE drip irrigation tape according to claim 3, characterized in that: The clamping grooves (6) and the buckles (9) are both 4 in number.

5. The plastic core for PE drip irrigation tape according to claim 3, characterized in that: The fixing grooves (8) are arranged on the inner side of the end cover (2), and the fixing grooves (8) are arranged in a staggered mode with the clamping grooves (6).

6. The plastic core for PE drip irrigation tape winding according to claim 5, characterized in that: The edges of the round holes (3) extend towards the inner side of the winding core body (1) to form arc-shaped recesses.

7. The plastic core for PE drip irrigation tape according to claim 6, characterized in that: The second reinforcing rib (5) comprises a transverse reinforcing rib (10) and a longitudinal reinforcing rib (11), the depth of the transverse reinforcing rib (10) is 14-15 mm, and the depth of the longitudinal reinforcing rib (11) is 21-22 mm.

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