CN212666644U - Outdoor overhead PVC reinforced pipe core mold and extrusion mold thereof - Google Patents

Abstract

The utility model relates to a PVC tubular product mould field discloses an outdoor built on stilts PVC adds muscle tubular product mandrel and extrusion tooling, and wherein, the mandrel includes the mandrel main part, and mandrel main part excircle vertically is provided with many strengthening rib runners. The utility model provides a current outdoor built on stilts problem that PVC tubular product amount of deflection is great, structural strength is low.

Description

Outdoor overhead PVC reinforced pipe core mold and extrusion mold thereof

Technical Field

The utility model relates to a PVC pipe die field specifically indicates an outdoor built on stilts PVC adds muscle tubular product mandrel and extrusion tooling thereof.

Background

At present, when various outdoor overhead pipes are used, steel pipes are generally commonly adopted, plastic solid-wall pipes are individually adopted, but the plastic solid-wall pipes have large pipe deflection and easy bending and creep deformation in the overhead use process due to the flexibility problem of the pipes, so that the self-structure is damaged, and a large amount of fixed supports are needed when the PVC pipes are used. And the PVC pipe can be influenced by the problems of ultraviolet radiation and oxygen oxidation in the outdoor and open-air use process, so that the problems of pipe discoloration and mechanical property reduction are caused, and the service life and the application attractiveness of the PV pipe are seriously influenced.

However, the steel pipe is overhead, so that the problems of easy rusting, large overall weight and large construction difficulty exist, the steel pipe is high in price, and the cost is high compared with that of a PVC pipe.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides an outdoor built on stilts PVC adds muscle tubular product mandrel and extrusion tooling has solved current outdoor built on stilts problem with PVC tubular product amount of deflection great, structural strength hangs down.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

the utility model provides an outdoor built on stilts PVC adds muscle tubular product mandrel of using, includes the mandrel main part, and mandrel main part excircle vertically is provided with many strengthening rib runners.

As a preferable mode, the core mold main body includes a mold body and a runner body; the reinforcing rib runner is arranged on the outer circular surface of the runner body, and the runner body is sleeved on the die body through a bolt.

Preferably, the rib flow channel is a rectangular groove, a triangular groove or an arc groove.

Preferably, the rib runners are equally spaced.

An outdoor overhead PVC reinforced pipe extrusion die comprises a die body and any one of the core dies, wherein the core die is fixedly connected with the core die; the die body is sequentially connected with a mandrel support, a middle sleeve and a mouth die; the mandrel is arranged on the mandrel support, and a gap between the inner circle of the mouth die and the outer circle of the mandrel forms a pipe forming channel.

As a preferred mode, a shunting cone is arranged in a cavity of the die body and is arranged on the mandrel bracket.

As a preferred mode, a grid plate is arranged at the inlet of the die body, and grid holes are densely distributed on the grid plate.

As a preferable mode, an adjusting screw is arranged at the joint of the middle sleeve and the mouth mold.

Compared with the prior art, the beneficial effects of the utility model are that:

through PVC of mandrel and extrusion tooling preparation adds muscle tubular product, its tubular product inner circle can have strengthening rib structure. Compared with the existing PVC pipe, the flexibility resistance and the bending strength of the pipe are greatly enhanced. When the PVC reinforced pipe is used outdoors, due to the existence of the moment of the reinforcing rib, the bearing strength of the PVC reinforced pipe is greatly increased, the overhead part is not easy to bend, the use of the fixed support can be effectively reduced, and the cost is saved.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings, in which:

fig. 1 is a schematic diagram of the core mold structure of the present invention.

Fig. 2 is a schematic view of the core mold assembly structure of the present invention.

Fig. 3 is the schematic structural diagram of the extrusion mold of the present invention.

Fig. 4 is a schematic diagram of the grid plate structure of the present invention.

Figure 5 is the utility model discloses the PVC of preparation adds muscle tubular product structure sketch map.

The core die comprises a core die main body 1, a reinforcing rib runner 101, a die body 102, a runner body 103, bolts 104, a die body 2, a mandrel support 3, a middle sleeve 4, an adjusting screw 5, a die opening 6, a mandrel 7, a spreader cone 8, a grid plate 9, grid holes 901 and a PVC reinforcing pipe 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 to 4 are schematic structural diagrams of a core mold of an outdoor overhead PVC reinforced pipe and an extrusion die thereof according to some embodiments of the present application, and the core mold of the outdoor overhead PVC reinforced pipe and the extrusion die thereof according to the present application will be described below with reference to fig. 1 to 4. It should be noted that fig. 1 to 4 are merely examples, and do not limit the specific shape and structure of the outdoor overhead PVC reinforced pipe core mold and the extrusion mold thereof.

Referring to fig. 1, in the present embodiment, the PVC ribbed pipe core mold for outdoor overhead use includes a core mold main body 1, and a plurality of rib runners 101 are provided in an outer circumference of the core mold main body 1 in a longitudinal direction.

Because the reinforcing rib runner 101 is arranged outside the core mould main body 1, the inner ring of the PVC pipe prepared by using the core mould has a reinforcing rib structure. Compared with the existing PVC pipe, the flexibility resistance and the bending strength of the pipe are greatly enhanced. When the PVC reinforced pipe is used outdoors, due to the existence of the moment of the reinforcing rib, the bearing strength of the PVC reinforced pipe 10 is greatly increased, the overhead part is not easy to bend, the use of a fixed support can be effectively reduced, and the cost is saved.

Referring to fig. 2, in some embodiments, the core mold body 1 includes a mold body 102 and a runner body 103; the reinforcing rib runner 101 is arranged on the outer circular surface of the runner body 103, and the runner body 103 is sleeved on the mold body 102 through a bolt 104.

The die body 102 and the runner body 103 are connected through the bolts 104, so that the die body 102 and the runner body 103 are in a detachable structure, PVC reinforced pipes 10 with different specifications can be prepared by replacing the runner bodies 103 with different sections of the reinforced rib runners 101, and the requirements for different overhead environments can be met.

In addition, the runner body 103 is sleeved on the die body 102, when the core die is mounted on the extrusion die to work, due to the pressure of the extrusion die, if the runner body 103 and the die body 102 are mounted in a butt joint mode, the runner body 103 is easy to deviate due to the extrusion pressure, and the pipe forming is affected. The runner body 103 and the die body 102 are designed to be in a sleeving structure, so that the raw material consumption of the runner body 103 can be reduced, and the cost is saved; secondly, the die body 102 is utilized to support the runner body 103, so that the runner body can work well under the extrusion pressure.

In some embodiments, the stiffener flow channels 101 are rectangular channels, triangular channels, or arcuate channels. When the reinforcing rib flow channels 101 are triangular grooves, the cross section of the PVC reinforced pipe 10 prepared by the reinforcing rib flow channels 101 in this embodiment is shown in fig. 5.

In some embodiments, the stiffener flow channels 101 are equally spaced. The reinforcing rib runners 101 distributed at equal intervals can ensure that the reinforcing rib torque of the PVC reinforced pipe 10 is distributed uniformly, so that the overall structural strength of the PVC reinforced pipe 10 is ensured.

Referring to fig. 3, in the present embodiment, the outdoor overhead PVC reinforced pipe extrusion die includes a die body 2 and any one of the core dies, and the core die is fixedly connected to a core shaft 7; the die body 2 is sequentially connected with a mandrel support 3, a middle sleeve 4 and a die 6; the mandrel 7 is arranged on the mandrel support 3, and a gap between the inner circle of the mouth mold 6 and the outer circle of the mandrel forms a pipe forming channel.

In this embodiment, the die body 2 is used for mounting each part of the extrusion die and connecting with the extruder, the die body 2 is sequentially connected with the mandrel support 3, the middle sleeve 4 and the die 6 to form a cavity, the mandrel 7 is mounted on the mandrel support 3, and the mandrel 7 and the cavity support form a flow channel for flowing raw materials. Finally, the raw materials form a pipe forming channel from the gap between the inner circle of the mouth die 6 and the outer circle of the core die to be extruded to form the PVC reinforced pipe 10.

The mandrel support 3 is mainly used for installing the supporting mandrel 7, but when the raw materials originally pass through the mandrel support 3, the holes in the shunting support can split the raw materials to enhance the raw material stirring effect.

Preferably, the end of the mouth mold 6 is butted with a sizing sleeve, and the surface roughness of the PVC reinforced pipe 10 can be reduced and the PVC reinforced pipe 10 can have the correct size and geometric shape by restraining the just-formed PVC reinforced pipe 10 through the sizing sleeve.

In some embodiments, a tap 8 is provided in the cavity of the die body 2, and the tap 8 is mounted on the mandrel holder 3. The tap 8 will turn the material into a thin ring shape for further plasticization of the material.

Preferably, a heating device can be arranged inside the shunting cone 8, so that the raw materials can be further plastic and solidification of the plastic can be avoided.

Referring to fig. 4, in some embodiments, a grid plate 9 is disposed at the inlet of the mold body 2, and grid holes 901 are densely distributed on the grid plate 9.

The extruder typically delivers the material to the extrusion die via a screw conveyor. The amount of the grid plate 9 changes the raw material from spiral motion to linear motion, and the grid holes 901 can also prevent the raw material and mechanical impurities which are not plasticized from entering the extrusion die, so that the filtering effect is achieved.

In addition, due to the existence of the grid plate 9, certain pressure can be formed, so that the PVC reinforced pipe is formed more tightly.

In some embodiments, the middle sleeve 4 is provided with an adjusting screw 5 at the joint with the die 6. The adjusting screw 5 can adjust the gap between the mouth mold 6 and the core mold to ensure that the wall thickness of the PVC reinforced pipe 10 is uniform.

The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly showing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model is still subject to the claims, all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model are included in the protection scope of the utility model.

Claims (6)

1. The utility model provides an outdoor built on stilts PVC adds muscle tubular product mandrel that uses which characterized in that includes:

the core mold comprises a core mold main body (1), wherein a plurality of reinforcing rib runners (101) are longitudinally arranged on the excircle of the core mold main body (1);

the reinforcing rib runners (101) are distributed at equal intervals, and the reinforcing rib runners (101) are rectangular grooves, triangular grooves or arc-shaped grooves.

2. The outdoor overhead PVC reinforced pipe core mold according to claim 1, wherein the core mold main body (1) comprises:

a body model (102);

the runner body (103), the strengthening rib runner (101) sets up in runner body (103) excircle surface, runner body (103) cup joints on die body (102) through bolt (104).

3. The utility model provides an outdoor built on stilts PVC adds muscle tubular product extrusion tooling which characterized in that includes:

a mandrel as claimed in any of claims 1 to 2 which is fixedly connected to a mandrel (7);

the die comprises a die body (2), wherein the die body (2) is sequentially connected with a mandrel support (3), a middle sleeve (4) and a die (6);

the mandrel (7) is arranged on the mandrel support (3), and a gap between the inner circle of the mouth mold (6) and the outer circle of the mandrel forms a pipe forming channel.

4. The outdoor overhead PVC reinforced pipe extrusion die of claim 3, which is characterized in that:

a cavity of the die body (2) is internally provided with a shunt cone (8), and the shunt cone (8) is arranged on the mandrel support (3).

5. The outdoor overhead PVC reinforced pipe extrusion die of claim 3, which is characterized in that:

a grid plate (9) is arranged at an inlet of the die body (2), and grid holes (901) are densely distributed in the grid plate (9).

6. The outdoor overhead PVC reinforced pipe extrusion die of claim 3, which is characterized in that:

and an adjusting screw (5) is arranged at the joint of the middle sleeve (4) and the neck ring mold (6).

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