Elliptical pipe forming die

Abstract

The utility model discloses an oval pipe forming die which comprises a first die assembly and a second die assembly, and a connecting assembly is arranged between the first die assembly and the second die assembly in a sleeved mode. The outer side end face of the first mold assembly and the outer side end face of the second mold assembly are fixedly connected with a first mold plug and a second mold plug correspondingly, the end face of one side of the first mold plug and the end face of one side of the second mold plug are connected with a first mold head shaft and a second mold head shaft correspondingly, and the first mold assembly comprises a first mold shell. Compared with the prior art, the oval pipe forming die adopts a sectional design, is divided into three stages, is very convenient to assemble and disassemble, large in size, light in weight, not prone to deformation and convenient to carry, and solves the problems that in the prior art, the input cost is high, the machining efficiency is high, and the like. And the operation difficulty is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, in particular to an oval tube forming mold. Background Art

[0002] As a non-circular cross-section component, elliptical tubes are widely used in construction, drainage systems, machinery manufacturing and other fields. In order to reduce the overall weight of the equipment and improve production efficiency, composite materials are used for design and manufacturing, and a compression molding process is generally used.

[0003] Currently, the mold manufacturing process often involves multiple steps and links, and each link requires strict control of quality and precision. This makes the mold manufacturing process complicated and tedious, and is expensive, with high investment costs, difficult to operate, and prone to waste.

[0004] Therefore, in response to the above-mentioned technical problems, it is necessary to provide an oval tube forming die.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the present utility model is to provide an elliptical tube forming die, which can solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows: an elliptical tube forming mold, comprising a first mold assembly and a second mold assembly, a connecting assembly is fitted between the first mold assembly and the second mold assembly, the outer end faces of the first mold assembly and the second mold assembly are respectively fixedly connected with a first mold plug and a second mold plug, one side end faces of the first mold plug and the second mold plug are respectively connected with a first mold head shaft and a second mold head shaft, and the first mold assembly, the second mold assembly, the connecting assembly, the first mold plug, the second mold plug, the second mold head shaft and the first mold head shaft are all movably connected and fixed.

[0008] In one or more embodiments of the present invention, the first mold assembly includes a first mold shell, and two pairs of first threaded holes are formed on a pair of end surfaces of the first mold shell, and a first screw is threadedly connected in each pair of the first threaded holes.

[0009] In one or more embodiments of the present invention, the first mold plug is inserted into the inner wall of the first mold shell, and a pair of end faces of the first mold plug are provided with second threaded holes matching the first threaded hole and the first screw.

[0010] In one or more embodiments of the present invention, a first head shaft mounting hole is provided on the side wall of one end of the first mold plug, a part of the end face of the first mold head shaft is inserted into the inner wall end face of the first head shaft mounting hole, and a pair of opposite end faces of the first mold plug located in the first head shaft mounting hole are provided with first screw holes matching the connecting component.

[0011] In one or more embodiments of the present invention, the second mold assembly includes a second mold shell, and two pairs of third threaded holes are formed on a pair of end surfaces of the second mold shell, and a second screw is threadedly connected in each pair of the third threaded holes.

[0012] In one or more embodiments of the present invention, the second mold plug is inserted into the inner wall of one end of the second mold plug, and a pair of end faces of the second mold plug are provided with fourth threaded holes matching the third threaded holes and the second screws.

[0013] In one or more embodiments of the present invention, a second head shaft mounting hole is formed on a side wall of one end of the second mold plug, and the second mold head shaft is inserted into the second head shaft mounting hole.

[0014] In one or more embodiments of the present invention, the connecting assembly includes a connecting block and a pair of locking screws, a pair of opposite end faces of the second mold shell are provided with multiple groups of first pin holes, one end of the connecting block is provided with multiple groups of second pin holes matching the first pin holes, and pins are passed through the second pin holes and the first pin holes.

[0015] In one or more embodiments of the present invention, a pair of second screw holes matching the locking screw are opened on the side wall of one end of the connecting block, and one end of the pair of locking screws are threadedly connected to a pair of first hexagonal screws, and the other end is threadedly connected to a pair of second hexagonal screws.

[0016] In one or more embodiments of the present invention, one end of the locking screw is threadedly connected to the second screw hole, and the other end is threadedly connected to the first screw hole, one side of the first hexagonal screw is attached to the connecting block on a side wall of the second screw hole, and one side of the second hexagonal screw is attached to the first mold plug on a side wall of the first screw hole.

[0017] Compared with the existing technology, the elliptical tube forming mold of the utility model adopts a segmented design, which divides the mold into three stages. It is very convenient to assemble and disassemble, has a large size, is light in weight, is not easy to deform, and is easy to carry, solving the problems of high investment cost and high operation difficulty in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural schematic diagram of an elliptical tube forming die in one embodiment of the present invention;

[0020] Figure 2 This is a structural cross-sectional view of an elliptical tube forming die in one embodiment of the present invention;

[0021] Figure 3 This is a partial structural diagram of an elliptical tube forming die in one embodiment of the present utility model;

[0022] Figure 4 This is an exploded view of the structure of the first mold assembly in one embodiment of the present utility model;

[0023] Figure 5 This is an exploded view of the structure of the second mold assembly in one embodiment of the present utility model;

[0024] Figure 6 This is an exploded view of the structure of the connecting assembly in one embodiment of the present invention.

[0025] Description of main reference numerals:

[0026] 1-first mold assembly, 101-first mold shell, 102-first threaded hole, 103-first screw, 104-first mold plug, 105-second threaded hole, 106-first head shaft mounting hole, 107-first screw hole, 108-first mold head shaft, 2-second mold assembly, 201-second mold shell, 202-third threaded hole, 203-second screw, 204-second mold plug, 205-fourth threaded hole, 206-second head shaft mounting hole, 207-second mold head shaft, 208-first pin hole, 3-connecting assembly, 301-connecting block, 302-second pin hole, 303-second screw hole, 304-locking screw, 305-first hexagonal screw, 306-second hexagonal screw. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] like Figures 1 to 5 As shown, an elliptical tube forming mold in one embodiment of the present invention includes a first mold assembly 1 and a second mold assembly 2. A connecting assembly 3 is fitted between the first mold assembly 1 and the second mold assembly 2. The outer end surfaces of the first mold assembly 1 and the second mold assembly 2 are respectively fixedly connected with a first mold plug 104 and a second mold plug 204. One side end surfaces of the first mold plug 104 and the second mold plug 204 are respectively connected with a first mold head shaft 108 and a second mold head shaft 207. The first mold assembly 1, the second mold assembly 2, the connecting assembly 3, the first mold plug 104, the second mold plug 204, the second mold head shaft 207 and the first mold head shaft 108 are all movably connected and fixed. The first mold assembly 1 and the second mold assembly 2 are combined into a whole by the connecting assembly 3 and locked and fixed. At the same time, they are easy to disassemble and transport.

[0029] Preferably, the first mold assembly 1 and the second mold assembly 2 are both hollow thin-walled metal pipe structures, which are light in weight, not easy to deform, and easy to carry.

[0030] like Figure 4 As shown, the first mold assembly 1 includes a first mold housing 101. Two pairs of first threaded holes 102 are formed on a pair of end surfaces of the first mold housing 101. A first screw 103 is threadedly connected to each pair of first threaded holes 102. A first mold plug 104 is inserted into the inner wall of the first mold housing 101. A pair of end surfaces of the first mold plug 104 are formed with second threaded holes 105 that match the first threaded holes 102 and the first screws 103. The first mold plug 104 is stably fixed to one end of the first mold housing 101 by the first screw 103.

[0031] Furthermore, a first head shaft mounting hole 106 is provided on the side wall at one end of the first mold plug 104, and a portion of the end face of the first mold head shaft 108 is inserted into the inner wall end face of the first head shaft mounting hole 106. A pair of opposite end faces of the first mold plug 104 located at the first head shaft mounting hole 106 are provided with first screw holes 107 matching the connecting component 3, which facilitates the subsequent clamping work.

[0032] like Figure 5As shown, the second mold assembly 2 includes a second mold housing 201. Two pairs of third threaded holes 202 are defined on a pair of end surfaces of the second mold housing 201. A second screw 203 is threadedly connected to each pair of third threaded holes 202. A second mold plug 204 is inserted into the inner wall of one end of the second mold plug 204. Fourth threaded holes 205 that match the third threaded holes 202 and the second screws 203 are defined on a pair of end surfaces of the second mold plug 204. A second head shaft mounting hole 206 is defined on one side wall of the second mold plug 204. A second mold head shaft 207 is inserted into the second head shaft mounting hole 206. Multiple groups of first pin holes 208 are defined on a pair of end surfaces of the second mold housing 201. The second mold plug 204 is stably fixed to one end of the second mold housing 201 by the second screw 203.

[0033] like Figures 1 to 3 and Figure 6 As shown, the connecting assembly 3 includes a connecting block 301 and a pair of locking screws 304. The locking screws 304 are arranged in the inner cavity of the second mold assembly 2. One end of the connecting block 301 is provided with multiple groups of second pin holes 302 matching the first pin holes 208. Pins are passed through the second pin holes 302 and the first pin holes 208. One end of the connecting block 301 is connected and fixed to the second mold shell 201 through the pins in the first pin holes 208 and the second pin holes 302, and the other end is clamped on the inner wall of the first mold shell 101.

[0034] Furthermore, a pair of second screw holes 303 matching the locking screw 304 are opened on the side wall of one end of the connecting block 301, one end of the pair of locking screws 304 are threadedly connected to a pair of first hexagonal screws 305, and the other end is threadedly connected to a pair of second hexagonal screws 306, one end of the locking screw 304 is threadedly connected to the second screw hole 303, and the other end is threadedly connected to the first screw hole 107, one side of the first hexagonal screw 305 is attached to a side wall of the second screw hole 303 on the connecting block 301, and one side of the second hexagonal screw 306 is attached to a side wall of the first screw hole 107 on the first mold plug 104, so that one end of the connecting block 301 is stably fixed on the inner wall of one end of the first mold shell 101.

[0035] When using an elliptical tube forming mold, first combine the molds: combine the first mold component 1 and the second mold component 2 into a whole through the connecting component 3, so that one end of the connecting component 3 is clamped on the inner wall of one end of the second mold component 2 and fixed by a pin, and the other end is clamped on the inner wall of one end of the first mold shell 101, and the locking screw rod 304 is driven by screwing one end of the locking screw rod 304 to be threadedly connected to the second screw rod hole 303 located on the connecting block 301, and the other end is threadedly connected to the first screw rod hole 107 located on the first mold plug 104. The first mold plug 104 is fixedly connected to the inner wall of one end of the first mold shell 101, so that the first mold component 1, the second mold component 2 and the connecting component 3 are stably combined, and then the mold surface is processed, and the mold release agent is applied, and then the embedded parts are positioned and installed, and fixed to the large-size elliptical tube forming mold. Then, the mold is clamped onto a tape wrapping machine or a winding machine by clamping the first mold head shaft 108 fixed on one side of the first mold plug 104 and the second mold head shaft 207 fixed on one side of the second mold plug 204. The mold is rotated to confirm the clamping state to ensure that the clamping is firm. The carbon fiber prepreg layer is then laid on the molding mold, and the tape is pre-compacted during the process. Then, auxiliary materials are laid on the surface of the large-size elliptical tube that has been laid for vacuum packaging, and then placed on the curing platform and sent to a curing furnace or autoclave equipment for curing. Finally, after the large-size elliptical tube is cured, the molding mold is cooled and taken out of the oven. The nut on the locking screw 304 is removed to separate the first mold assembly 1 and the second mold assembly 2 for demoulding. After removing the second mold assembly 2, the core is removed from one end of the first mold assembly 1 to obtain a large-size elliptical tube material. The product is processed and fixed to length to finally obtain a large-size elliptical tube finished product.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An elliptical tube forming die, characterized in that: The present invention comprises a first mold assembly and a second mold assembly, wherein a connecting assembly is sleeved between the first mold assembly and the second mold assembly, wherein outer end surfaces of the first mold assembly and the second mold assembly are respectively fixedly connected to a first mold plug and a second mold plug, and one side end surfaces of the first mold plug and the second mold plug are respectively connected to a first mold head shaft and a second mold head shaft; The first mold assembly, the second mold assembly, the connecting assembly, the first mold plug, the second mold plug, the second mold head shaft and the first mold head shaft are all movably connected and fixed.

2. The oval tube forming die according to claim 1, characterized in that: The first mold assembly includes a first mold shell. Two pairs of first threaded holes are formed on a pair of end surfaces of the first mold shell. A first screw is threadedly connected in each pair of the first threaded holes.

3. The oval tube forming die according to claim 2, characterized in that: The first mold plug is plugged into the inner wall of the first mold shell, and a pair of end surfaces of the first mold plug are provided with second threaded holes matching the first threaded holes and the first screws.

4. The oval tube forming die according to claim 3, characterized in that: A first head shaft mounting hole is formed on a side wall of one end of the first mold plug, and a portion of the end surface of the first mold head shaft is inserted into the inner wall end surface of the first head shaft mounting hole; A pair of opposite end surfaces of the first mold plug located at the first head shaft mounting hole are both provided with first screw holes matching the connecting assembly.

5. The oval tube forming die according to claim 1, characterized in that: The second mold assembly includes a second mold shell. Two pairs of third threaded holes are opened on a pair of end surfaces of the second mold shell. A second screw is threadedly connected in each pair of the third threaded holes.

6. The oval tube forming die according to claim 5, characterized in that: The second mold plug is plugged into the inner wall of one end of the second mold plug. A pair of end surfaces of the second mold plug are provided with fourth threaded holes matching the third threaded holes and the second screws.

7. The oval tube forming die according to claim 6, characterized in that: A second head shaft mounting hole is provided on a side wall of one end of the second mold plug, and the second mold head shaft is inserted into the second head shaft mounting hole.

8. The oval tube forming die according to claim 7, characterized in that: The connecting assembly includes a connecting block and a pair of locking screws. A pair of opposite end faces of the second mold shell are each provided with multiple groups of first pin holes. One end of the connecting block is provided with multiple groups of second pin holes matching the first pin holes. Pins are passed through both the second pin holes and the first pin holes.

9. The oval tube forming die according to claim 8, characterized in that: A pair of second screw holes matching the locking screw are opened on the side wall of one end of the connecting block, one end of the pair of locking screws are threadedly connected to a pair of first hexagonal screws, and the other end of the pair of locking screws are threadedly connected to a pair of second hexagonal screws.

10. The oval tube forming die according to claim 9, characterized in that: One end of the locking screw is threadedly connected to the second screw hole, and the other end is threadedly connected to the first screw hole. One side of the first hexagonal screw is attached to the connecting block and is located on a side wall of the second screw hole. One side of the second hexagonal screw is attached to the first mold plug and is located on a side wall of the first screw hole.

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