CN118107201A - Thermosetting forming die for composite telegraph pole - Google Patents

Abstract

The invention provides a thermosetting forming die of a composite telegraph pole, which comprises a die main body, a heating component arranged in the die main body, two barrier components and two driving components, wherein the die main body is of a conical structure; the saw blades are arranged at intervals around the die main body and are in sliding connection with the mounting ring; the two driving components are respectively arranged at two ends of the die main body and connected with the die main body; the power output end of the driving component is connected with the saw blade. The heat curing forming die for the composite telegraph pole provided by the invention has the advantages that the annular barrier at the two ends of the die main body is formed by the plurality of saw blades, after the telegraph pole is formed, the saw blades are driven by the driving component to reciprocate and simultaneously drive the mounting ring to rotate, all the saw blades participate in cutting the telegraph pole, the cutting can be completed without rotating for one circle, the cutting efficiency is greatly improved, and meanwhile, the saw blades cannot damage the die when cutting the telegraph pole.

Description

Thermosetting forming mold for composite utility poles

Technical Field

The invention belongs to the technical field of electric pole production equipment, and in particular relates to a thermal curing forming mold for a composite electric pole.

Background technique

Traditional cement poles are heavy, cracked, and have poor durability, a short service life, and are difficult to construct, transport, operate, and maintain, and are prone to various safety hazards.

Composite poles, namely FRP poles, have characteristics that other types of poles cannot match, such as light weight, high strength, corrosion resistance, weather resistance and good electrical insulation performance. Using FRP poles to replace traditional iron towers can not only reduce the weight by half, but also be easy to install and construct, and solve the problem of high flashover accident rate. FRP itself has good electrical insulation performance. Using FRP poles can avoid lightning "strike back" accidents that are prone to occur in iron towers. In addition, FRP poles also strengthen the lightning insulation strength of insulators. Sufficient insulation strength will not cause lightning flashover in insulator strings.

At present, one of the production methods of composite poles is: impregnating glass fiber roving with thermosetting resins such as unsaturated polyester resin, epoxy vinyl resin, epoxy resin, etc., and then winding it on the surface of a conical mandrel according to a certain linear pattern. The fiber layer contains fibers with directions of 0 to 90 degrees. The computer controls the movement of the machine, and the control system can accurately control the fiber dosage, fiber placement position and direction. Controlling the mandrel speed and the relative movement speed of the shaft and the wire nozzle can adjust the required winding angle to form a winding angle ranging from 5° to nearly 90° with the axial direction. The number of fiber layers should be determined according to the requirements of the grade performance of the pole, and the fiber tension should be controlled to ensure the mechanical properties between the layers and the fiber strength. After the product is wound, it is cured according to the predetermined curing system. After curing, the mandrel is removed and the mandrel can be reused. Controlling fiber tension and winding angle is part of the fiber winding process and determines the performance of the final product.

When winding the glass fiber, an annular grille is usually installed at both ends of the mold to fix the glass fiber at both ends of the mold; after curing, an external cutting tool is used to cut the pole inside the annular grille around both ends of the mold, and the two ends are cut off and the annular grille is removed. Finally, a hydraulic mechanism is used to push the large end of the pole to complete the demoulding of the pole.

However, when using a cutting tool to cut the pole on the mold, on the one hand, in order to ensure that both ends of the pole are completely cut and cut off, it is easy to cut the mold during cutting and damage the mold; on the other hand, it is necessary to cut a whole circle around the pole, which is inefficient.

Summary of the invention

The present invention provides a thermosetting forming mold for a composite utility pole, aiming to solve the technical problems raised in the above-mentioned background technology.

To achieve the above object, the technical solution adopted by the present invention is: to provide a thermosetting forming mold for a composite electric pole, comprising a mold body and a heating assembly arranged in the mold body, wherein the mold body is a conical structure, and further comprising:

Two grille assemblies, respectively disposed at the two ends of the mold body and connected to the mold body, the grille assemblies comprising a mounting ring and a plurality of saw blades, the mounting ring being rotatably matched with one end of the mold body, the outer diameter of the mounting ring being equal to or smaller than the outer diameter of the mold body; the plurality of saw blades being spaced around the mold body and slidably connected to the mounting ring, each of the saw blades being adapted to protrude from the side of the mold body and having the freedom to reciprocate along the radial direction of the mold body; and

Two driving components are respectively arranged at two ends of the mold body and connected to the mold body; the power output end of the driving component is connected to the saw blade to drive the mounting ring to rotate and drive the saw blade to reciprocate.

In a possible implementation of the thermosetting forming mold for the composite electric pole provided by the present invention, the saw blade is chamfered at one end facing the axis of the mold body; the driving assembly comprises:

A connecting ring, arranged inside the mounting ring and rotatably connected to one end of the mold body, and having the freedom to rotate around the axis of the mold body;

A plurality of circular plates are arranged around the connecting ring, are rotatably connected to the connecting ring respectively, and have the freedom to rotate around their own axes; the circular plates are suitable for contacting and pressing against the chamfered side of the saw blades during the process of rotating around the mold body with the connecting ring, so as to lift up the saw blades one by one and drive the connecting ring to rotate along the rotation direction of the connecting ring;

A reset assembly connected to the saw blade, used to drive the lifted saw blade to reset; and

The driving mechanism is connected to the mold body, and the power output end is connected to the connecting ring to drive the connecting ring to rotate.

In a possible implementation of the thermosetting forming mold for the composite electric pole provided by the present invention, teeth are provided around the circumference of the circular plate; the reset assembly includes a hook and a torsion spring, the torsion spring is connected to the saw blade and to one end of the hook, and the other end of the hook is suitable for hooking the teeth on the circular plate, and the hook is suitable for being pulled by the circular plate that rotates with the connecting ring, thereby driving the lifted saw blade to reset.

In a possible implementation of the thermosetting forming mold for the composite utility pole provided by the present invention, the contact point when the hook and the circular plate begin to contact is located on the side of the line connecting the rotating shaft of the hook and the rotating shaft of the circular plate toward the axis of the mold body.

In a possible implementation of the thermosetting forming mold for the composite electric pole provided by the present invention, it also includes a plurality of damping rings, each of which corresponds to the circular plate one by one. The damping ring is sleeved on the rotating shaft of the circular plate and clamped between the rotating shaft of the circular plate and the connecting ring to increase the rotational damping of the circular plate.

In a possible implementation of the thermosetting forming mold for the composite electric pole provided by the present invention, the inner circumference of the connecting ring is provided with teeth, and the driving mechanism includes:

a gear, disposed on the inner side of the connecting ring and meshing with the connecting ring; and

The motor assembly is connected to the mold body, and the power output end of the motor assembly is connected to the gear to drive the gear to rotate.

In a possible implementation of the thermosetting forming mold for the composite electric pole provided by the present invention, a slot is provided on the side of the saw blade, and a plurality of slide grooves are opened along the circumference of the mounting ring. A limit block is provided in each slide groove, and the saw blade is slidably arranged in the slide groove. The limit block slides in cooperation with the slot to limit the displacement range of the saw blade.

In a possible implementation of the thermosetting forming mold for the composite utility pole provided by the present invention, the slot has an opening at one end toward the axis of the mold body, and the friction between the saw blade and the mounting ring is greater than the gravity of the saw blade.

The beneficial effects of the thermosetting forming mold for the composite utility pole provided by the present invention are as follows: compared with the prior art, the thermosetting forming mold for the composite utility pole provided by the present invention comprises a plurality of saw blades forming annular grilles at both ends of the mold body; after the utility pole is formed, the driving assembly drives the saw blades to reciprocate and simultaneously drives the mounting ring to rotate; all saw blades participate in cutting the utility pole, and cutting can be completed without rotating one circle, thereby greatly improving the cutting efficiency; at the same time, the saw blades will not damage the mold when cutting the utility pole.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention;

FIG2 is an enlarged view of portion A in FIG1 ;

FIG3 is a schematic diagram of the front view of the structure of a thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention;

Fig. 4 is a partial cross-sectional structural diagram along line A-A in Fig. 3;

FIG5 is an enlarged view of portion B in FIG4 ;

Description of reference numerals:

10. mold body; 20. grille assembly; 21. mounting ring; 211. limit block;

22. saw blade; 23. slot; 31. connecting ring; 32. round plate; 33. torsion spring;

34. Hook; 35. Damping ring; 36. Gear.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present application. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

Please refer to Figures 1 to 5 together, and now the thermosetting forming mold of the composite electric pole provided by the present invention is described. The thermosetting forming mold of the composite electric pole includes a mold body 10 and a heating component arranged in the mold body 10. The mold body 10 is a conical structure, and also includes two grille components 20 and two drive components. The two grille components 20 are respectively arranged at the two ends of the mold body 10 and connected to the mold body 10. The grille component 20 includes a mounting ring 21 and a plurality of saw blades 22. The mounting ring 21 is rotatably matched with one end of the mold body 10, and the outer diameter of the mounting ring 21 is equal to or less than the outer diameter of the mold body 10; the plurality of saw blades 22 are arranged at intervals around the mold body 10 and are all slidably connected to the mounting ring 21. Each saw blade 22 is suitable for protruding from the side of the mold body 10 and has the freedom to slide back and forth in the radial direction of the mold body 10; the two drive components are respectively arranged at the two ends of the mold body 10 and connected to the mold body 10; the power output end of the drive component is connected to the saw blade 22, which is used to drive the mounting ring 21 to rotate and drive the saw blade 22 to reciprocate.

It should be noted that during the reciprocating motion of the saw blade 22 , it always protrudes out of the solidified electric pole.

The beneficial effects of the thermosetting forming mold for the composite utility pole provided by the embodiment of the present invention are as follows: compared with the prior art, the thermosetting forming mold for the composite utility pole provided by the embodiment of the present invention comprises a plurality of saw blades 22 forming annular grilles at both ends of the mold body 10. After the utility pole is formed, the driving assembly drives the saw blades 22 to reciprocate and drives the mounting ring 21 to rotate at the same time. All saw blades 22 participate in cutting the utility pole, and the cutting can be completed without rotating one circle, thereby greatly improving the cutting efficiency. At the same time, the saw blades 22 will not damage the mold when cutting the utility pole.

As shown in Figures 1 and 2, in a specific implementation of the thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention, a saw blade 22 is chamfered on one side of one end of the axis of the mold body 10; the driving assembly includes a connecting ring 31, a plurality of circular plates 32, a reset assembly and a driving mechanism, the connecting ring 31 is arranged on the inner side of the mounting ring 21 and is rotatably connected to one end of the mold body 10, and has the freedom to rotate around the axis of the mold body 10; a plurality of circular plates 32 are arranged around the connecting ring 31, and are respectively rotatably connected to the connecting ring 31, and have the freedom to rotate around their own axes; the circular plate 32 is suitable for contacting and pressing with the chamfered side of the saw blade 22 during the process of rotating around the mold body 10 with the connecting ring 31, so as to lift up the saw blades 22 one by one and drive the connecting ring 31 to rotate along the rotation direction of the connecting ring 31; the reset assembly is connected to the saw blade 22 to drive the lifted saw blade 22 to reset; the driving mechanism is connected to the mold body 10, and the power output end is connected to the connecting ring 31 to drive the connecting ring 31 to rotate.

Specifically, the connecting ring 31 is provided with four or more circular plates 32 to increase the frequency of the reciprocating motion of the saw blade 22 and ensure cutting efficiency. The saw blade 22 is chamfered, and the circular plate 32 presses against the chamfered side of the saw blade 22 when rotating. In the process of lifting the saw blade 22, a thrust at an angle to the radial direction is applied to the saw blade 22, thereby pushing the connecting ring 31 to rotate, so that the saw blade 22 can continue to cut the electric pole. When the rotation angle of the connecting ring 31 is greater than the angle between two adjacent saw blades 22, the end of the electric pole is cut off.

As shown in Figures 1 and 2, in a specific implementation of the thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention, teeth are provided around the circular plate 32; the reset assembly includes a hook 34 and a torsion spring 33, the torsion spring 33 is connected to the saw blade 22 and to one end of the hook 34, and the other end of the hook 34 is suitable for hooking the teeth on the circular plate 32, and the hook 34 is suitable for being pulled by the circular plate 32 that rotates with the connecting ring 31, thereby driving the lifted saw blade 22 to reset.

Specifically, as shown in Figures 1 and 2, in a specific implementation of the thermosetting forming mold for the composite utility pole provided in an embodiment of the present invention, the contact point when the hook 34 starts to contact the circular plate 32 is located on the side of the line connecting the rotating shaft of the hook 34 and the rotating shaft of the circular plate 32 toward the axis of the mold body 10, so that the torque applied by the hook 34 to the circular plate 32 can drive the circular plate 32 to rotate in the rotation direction of the connecting ring 31; so that the circular plate 32 can apply a pulling force to the hook 34, pulling the saw blade 22 to reset, and at the same time, when the pulling force is too large, the hook 34 can drive the circular plate 32 to rotate, shortening the distance between the contact point of the hook 34 and the circular plate 32 and the saw blade 22, reducing the pulling force received by the hook 34, and avoiding damage to the saw blade 22 and the hook 34 due to excessive pulling force; finally, the hook 34 bypasses the circular plate 32 from the circular plate 32 toward the side of the axis of the mold body 10.

Furthermore, as shown in Figures 4 and 5, in a specific implementation of the thermosetting forming mold for the composite utility pole provided in an embodiment of the present invention, it also includes a plurality of damping rings 35. The damping rings 35 correspond one-to-one to the circular plates 32. The damping rings 35 are sleeved on the rotating shaft of the circular plate 32 and clamped between the rotating shaft of the circular plate 32 and the connecting ring 31 to increase the rotational damping of the circular plate 32 and ensure that the pulling force applied by the circular plate 32 to the hook is sufficient to pull the saw blade 22 to reset.

As shown in Figures 1 and 2, in a specific implementation of the thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention, teeth are provided on the inner circumference of the connecting ring 31, and the driving mechanism includes a gear 36 and a motor assembly. The gear 36 is provided on the inner side of the connecting ring 31 and meshes with the connecting ring 31; the motor assembly is connected to the mold body 10, and the power output end of the motor assembly is connected to the gear 36, driving the gear 36 to rotate, thereby driving the connecting ring 31 to rotate.

As shown in Figures 4 and 5, in a specific implementation of the thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention, a slot 23 is provided on the side of the saw blade 22, and a plurality of slide grooves are opened around the mounting ring 21, each slide groove is provided with a limit block 211, and the saw blade 22 is slidably arranged in the slide groove, and the limit block 211 is slidably matched with the slot 23 to limit the displacement range of the saw blade 22, so that the saw blade 22 can protrude from the cured utility pole even after retraction.

Furthermore, as shown in FIG. 2 , in a specific implementation of the thermosetting forming mold for a composite utility pole provided in an embodiment of the present invention, the card slot 23 has an opening at one end toward the axis of the mold body 10, and the friction between the saw blade 22 and the mounting ring 21 is greater than the gravity of the saw blade 22, thereby preventing the saw blade 22 from automatically sliding off.

It should be noted that after the traditional mold is formed by thermosetting the utility pole, the annular grilles at both ends need to be removed before the hydraulic mechanism can be used to push the utility pole to achieve demoulding of the utility pole. The annular grilles are usually fastened to the mold body 10 by multiple bolts, which makes disassembly more troublesome. In this embodiment, several side surfaces are provided with slots 23, and the opening of the slots 23 is axially facing the mold body 10, so that the saw blade 22 can be directly inserted into the mounting ring 21 or directly pulled out. Therefore, before demoulding, it is only necessary to pull the saw blade 22 directly out of the mounting ring 21 without the need to remove the entirety, which makes the operation simpler.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a compound wire pole's thermosetting forming die, includes mould main part (10) and establishes heating element in mould main part (10), mould main part (10) are toper structure, its characterized in that still includes:

The two grating assemblies (20) are respectively arranged at two ends of the die main body (10) and are connected with the die main body (10), the grating assemblies (20) comprise mounting rings (21) and a plurality of saw blades (22), the mounting rings (21) are in running fit with one end of the die main body (10), and the outer diameter of the mounting rings (21) is equal to or smaller than the outer diameter of the die main body (10); a plurality of saw blades (22) are arranged at intervals around the die main body (10) and are in sliding connection with the mounting ring (21), and each saw blade (22) is suitable for protruding out of the side surface of the die main body (10) and has the freedom degree of sliding back and forth along the radial direction of the die main body (10); and

The two driving assemblies are respectively arranged at two ends of the die main body (10) and are connected with the die main body (10); the power output end of the driving component is connected with the saw blade (22) and used for driving the mounting ring (21) to rotate and simultaneously driving the saw blade (22) to reciprocate.

2. The thermosetting molding die of a composite pole according to claim 1, wherein the saw blade (22) is provided with a chamfer on one side toward one end of the axis of the die body (10); the drive assembly includes:

A connecting ring (31) which is provided inside the mounting ring (21) and is rotatably connected to one end of the mold main body (10) and has a degree of freedom of rotation about the axis of the mold main body (10);

A plurality of circular plates (32) which are arranged around the connecting ring (31) and are respectively connected with the connecting ring (31) in a rotating way, and have the freedom degree of rotating around the axis of the circular plates; the circular plate (32) is suitable for contacting and pressing one side of the chamfer of the saw blade (22) in the process of rotating along with the connecting ring (31) around the die main body (10), so as to jack up the saw blades (22) one by one and drive the connecting ring (31) to rotate along the rotating direction of the connecting ring (31);

The reset assembly is connected with the saw blade (22) and used for driving the jacked saw blade (22) to reset; and

The driving mechanism is connected with the die main body (10), and the power output end is connected with the connecting ring (31) and used for driving the connecting ring (31) to rotate.

3. The thermosetting molding die for the composite telegraph pole according to claim 2, wherein teeth are arranged on the circumference of the circular plate (32); the reset component comprises a hook (34) and a torsion spring (33), the torsion spring (33) is connected with the saw blade (22) and is connected with one end of the hook (34), the other end of the hook (34) is suitable for hooking teeth on the circular plate (32), and the hook (34) is suitable for being pulled by the circular plate (32) which rotates along with the connecting ring (31) to drive the jacked saw blade (22) to reset.

4. A thermosetting molding die for a composite pole according to claim 3, wherein a contact point at which the hook (34) comes into contact with the circular plate (32) is located on a side of a line connecting a rotation axis of the hook (34) and a rotation axis of the circular plate (32) toward an axis of the die body (10).

5. A thermosetting molding die for a composite telegraph pole according to claim 3, further comprising a plurality of damping rings (35), wherein the damping rings (35) are in one-to-one correspondence with the circular plates (32), the damping rings (35) are sleeved on the rotating shaft of the circular plates (32), and are clamped between the rotating shaft of the circular plates (32) and the connecting ring (31) to increase the rotation damping of the circular plates (32).

6. The thermosetting molding die for a composite electric pole according to claim 2, wherein the inner circumference of the connection ring (31) is provided with teeth, and the driving mechanism includes:

A gear (36) provided on the inner side of the connection ring (31) and engaged with the connection ring (31); and

And the motor assembly is connected with the die main body (10), and the power output end of the motor assembly is connected with the gear (36) to drive the gear (36) to rotate.

7. The thermosetting molding die for the composite telegraph pole according to claim 1, wherein a clamping groove (23) is formed in the side surface of the saw blade (22), a plurality of sliding grooves are formed in the periphery of the mounting ring (21), limiting blocks (211) are arranged in each sliding groove, the saw blade (22) is slidably arranged in the sliding grooves, and the limiting blocks (211) are slidably matched with the clamping groove (23) and are used for limiting the displacement range of the saw blade (22).

8. The thermosetting molding die for the composite telegraph pole according to claim 7, characterized in that one end of the clamping groove (23) facing the axis of the die main body (10) is provided with an opening, and the friction force between the saw blade (22) and the mounting ring (21) is larger than the gravity force of the saw blade (22).