Glass fiber composite forming pipe heating forming mold

Abstract

The utility model discloses a glass fiber composite molding tube thermoforming mould, which relates to the technical field of moulds and comprises an upper mould assembly, the upper mould assembly comprises a mould seat, seat holes, a power supply controller, a mould cavity, a heat conduction aluminum plate and an electric heating wire, and the seat holes are arranged on two sides of the mould seat in a penetrating manner. The utility model provides a glass fiber composite forming pipe heating forming mold which is composed of three sets of independent upper mold assemblies and lower mold assemblies with different frequencies, and the adjacent upper mold assemblies and lower mold assemblies share one power source controller. The heating power of the electric heating wires arranged in the different upper die assemblies and the lower die assemblies is controlled by adjusting input voltage, the curing degree of materials in the temperature rising process is improved by sequentially arranging the heating belts with the low frequency, the high frequency and the medium frequency, and the performance of a curing layer of the glass fiber composite forming pipe is improved; the electric heating wire spirally distributed in an S shape is attached to the die cavity through the heat conduction aluminum plate, and the heating uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a heating molding mold for a glass fiber composite molding pipe. Background Art

[0002] The forming process of glass fiber tube is to impregnate glass fiber filaments with resin and then solidify them in a highly polymerized device that integrates light, electricity and heat, and then form them by traction and pultrusion. Glass fiber tube is light and hard, non-conductive, has high mechanical strength, is resistant to aging, high temperature and corrosion, so it is widely used in industries such as petroleum, electric power, chemical industry, papermaking, urban water supply and drainage, factory sewage treatment, seawater desalination, and gas transportation.

[0003] For example, the patent document with application number CN202021109420.0 discloses a heating and forming mold for a glass fiber composite molding tube. The utility model glass fiber composite molding tube heating and forming mold first uses a low-power heating belt for the first heating, and then uses a high-power heating belt for the second heating. The second heating eliminates the stress relaxation peak, making the curing curve more regular. If a curing peak appears in the first heating, the temperature of the second heating is increased, so that the degree of curing of the material is improved during the heating process. Linear cooling is performed through a medium-power heating belt to improve the performance of the curing layer of the glass fiber composite molding tube.

[0004] However, in the comparative document, the high, medium and low frequency heating belts are all integrated inside the outer mold of the one-piece structure. Once part of them is damaged, they need to be replaced as a whole, which is very costly. In addition, the three frequency heating belts are all controlled by independent heating couples, which have a complex structure and the problem of uneven heating.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a glass fiber composite molding tube heating molding die is proposed. Utility Model Content

[0006] The utility model aims to provide a glass fiber composite forming tube heating forming die to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a glass fiber composite molding tube heating molding mold, including an upper mold assembly, the upper mold assembly includes a mold base, a seat hole, a power controller, a mold cavity, a thermally conductive aluminum plate and a heating wire, the mold base is provided with seat holes on both sides, and a power controller is arranged on the outside of the mold base, the bottom plane of the mold base is provided with a mold cavity with a notch facing upward, and the top plane of the mold cavity is bonded with a thermally conductive aluminum plate, and the top of the thermally conductive aluminum plate is bonded with a heating wire.

[0008] Furthermore, the heating wire is distributed in an "S" shape, and the heating wire is electrically connected to the power controller via an aviation connector.

[0009] Furthermore, a lower mold assembly is correspondingly arranged at the bottom of the upper mold assembly, and the outer shape structure of the lower mold assembly is consistent with that of the upper mold assembly and is mirror-inverted.

[0010] Furthermore, four supporting feet are fixed to the bottom of the lower mold assembly, and the ends of the supporting feet are fixed to the cement foundation through expansion bolts.

[0011] Furthermore, connecting rods are inserted into the seat holes on both sides of the mold base, and a fixing pin is fixedly provided at one end of the connecting rod.

[0012] Furthermore, a movable pin is movably provided at the other end of the connecting rod, and through holes are provided on both sides of the connecting rod.

[0013] Furthermore, a fastening bolt is inserted into the through hole, and the fastening bolt combines the upper mold assembly and the lower mold assembly into a whole through a connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, the heating molding mold of the present application is composed of three groups of independent upper mold assemblies and lower mold assemblies with different frequencies. A power controller is shared between adjacent upper mold assemblies and lower mold assemblies. The heating power of the built-in heating wires of different upper mold assemblies and lower mold assemblies is controlled by adjusting the input voltage. By sequentially setting the heating belts of low, high and medium frequencies, the curing degree of the material is improved during the heating process, thereby improving the performance of the curing layer of the glass fiber composite molding tube. In addition, the heating wires spirally distributed in an "S" shape are fitted to the mold cavity through a heat-conducting aluminum plate to improve the uniformity of heating.

[0016] 2. When the utility model is in use, the adjacent upper mold assemblies and lower mold assemblies are connected end to end through a connecting rod, and the limiting is achieved by setting a fixed pin and a movable pin, so that the upper mold assembly and the lower mold assembly fit tightly, and then the upper mold assembly and the lower mold assembly are combined into a whole by tightening bolts through the connecting rod, and the glass fiber tube is solidified and formed by traction and pultrusion. The above-mentioned split structure setting allows the heating belts of low, high and medium frequencies to be freely combined, and if part of it is damaged, only the module needs to be replaced, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the upper mold assembly of the utility model.

[0020] In the figure: 1. upper mold assembly; 101. mold base; 102. seat hole; 103. power controller; 104. mold cavity; 105. thermal conductive aluminum plate; 106. heating wire; 2. lower mold assembly; 3. support foot; 4. connecting rod; 5. fixing pin; 6. movable pin; 7. through hole; 8. fastening bolt. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, a glass fiber composite molding tube heating molding mold includes an upper mold component 1, the upper mold component 1 includes a mold base 101, a seat hole 102, a power controller 103, a mold cavity 104, a heat-conducting aluminum plate 105 and a heating wire 106, the mold base 101 is provided with seat holes 102 on both sides, and the mold base 101 is provided with a power controller 103 on the outside, the mold base 101 is provided with a mold cavity 104 with a notch upward on the bottom plane, and the mold cavity 104 is bonded with a heat-conducting aluminum plate 105 on the top plane, and the heat-conducting aluminum plate 105 is bonded with the top of the heat-conducting aluminum plate 105. The heating wire 106 is spirally distributed in an "S" shape, and the heating wire 106 and the power controller 103 are connected. The heating molding mold of the present application is electrically connected through an aviation joint. It is composed of three groups of independent upper mold assemblies 1 and lower mold assemblies 2 with different frequencies. The adjacent upper mold assemblies 1 and lower mold assemblies 2 share a power controller 103. The heating power of the built-in electric heating wires 106 of different upper mold assemblies 1 and lower mold assemblies 2 is controlled by adjusting the input voltage. By sequentially setting the three heating belts of low, high and medium frequencies, the curing degree of the material is improved during the heating process, and the performance of the curing layer of the glass fiber composite molding tube is improved. In addition, the electric heating wires 106 spirally distributed in an "S" shape are attached to the mold cavity 104 through the heat-conducting aluminum plate 105 to improve the uniformity of heating;

[0023] like Figure 1 to Figure 2 As shown, a lower mold assembly 2 is correspondingly arranged at the bottom of the upper mold assembly 1, and the outer structure of the lower mold assembly 2 is consistent with that of the upper mold assembly 1 and is mirror-opposite. Four supporting feet 3 are fixed to the bottom of the lower mold assembly 2, and the ends of the supporting feet 3 are fixed to the cement foundation through expansion bolts. Connecting rods 4 are inserted into the seat holes 102 on both sides of the mold base 101, and a fixing pin 5 is fixedly arranged at one end of the connecting rod 4, and a movable pin 6 is movably arranged at the other end of the connecting rod 4. Through holes 7 are penetrated on both sides of the connecting rod 4, and fastening bolts 8 are inserted in the through holes 7. The fastening bolts 8 combine the upper mold assembly 1 and the lower mold assembly 2 into a whole through the connecting rod 4. The adjacent upper mold assemblies 1 and the lower mold assemblies 2 are connected end to end through the connecting rod 4, and the limiting is achieved by the setting of the fixing pin 5 and the movable pin 6, so that the upper mold assembly 1 and the lower mold assembly 2 are tightly fitted, and then the fastening bolts 8 combine the upper mold assembly 1 and the lower mold assembly 2 into a whole through the connecting rod 4.

[0024] Working principle: When using this glass fiber composite molding tube heating molding mold, the heating molding mold of the present application is composed of three groups of independent upper mold components 1 and lower mold components 2 with different frequencies. The adjacent upper mold components 1 and lower mold components 2 share a power controller 103. By adjusting the input voltage, the heating power of the built-in electric heating wires 106 of different upper mold components 1 and lower mold components 2 is controlled. By sequentially setting the three heating belts of low, high and medium frequencies, the curing degree of the material is improved during the heating process, thereby improving the performance of the curing layer of the glass fiber composite molding tube. In addition, the electric heating wires 106 distributed in an "S" shape are spirally distributed. The hot wire 106 is fitted with the mold cavity 104 through the heat-conducting aluminum plate 105 to improve the uniformity of heating. The adjacent upper mold assembly 1 and lower mold assembly 2 are connected end to end through the connecting rod 4. The limiting is achieved by the setting of the fixed pin 5 and the movable pin 6, so that the upper mold assembly 1 and the lower mold assembly 2 are tightly fitted. Then the tightening bolt 8 is used to combine the upper mold assembly 1 and the lower mold assembly 2 into a whole through the connecting rod 4, and the glass fiber tube is solidified and formed by traction and pultrusion. The above-mentioned split structure setting allows the three frequency heating belts of low, high and medium to be freely combined, and if part of it is damaged, only the module needs to be replaced, which is highly practical.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A glass fiber composite molding tube heating molding die, comprising an upper mold assembly (1), characterized in that: The upper mold assembly (1) comprises a mold base (101), a seat hole (102), a power controller (103), a mold cavity (104), a heat-conducting aluminum plate (105) and a heating wire (106); the mold base (101) has seat holes (102) extending through both sides thereof, and a power controller (103) is arranged outside the mold base (101); a mold cavity (104) with a notch facing upward is provided on the bottom plane of the mold base (101), and a heat-conducting aluminum plate (105) is bonded to the top plane of the mold cavity (104); and a heating wire (106) is bonded to the top of the heat-conducting aluminum plate (105).

2. A glass fiber composite molding tube heating molding die according to claim 1, characterized in that: The heating wire (106) is distributed in an "S" shape and spirally arranged, and the heating wire (106) is electrically connected to the power controller (103) via an aviation connector.

3. A glass fiber composite molding tube heating molding die according to claim 1, characterized in that: A lower mold assembly (2) is correspondingly arranged at the bottom of the upper mold assembly (1), and the outer shape structure of the lower mold assembly (2) is consistent with that of the upper mold assembly (1) and is mirror-inverted.

4. A glass fiber composite molding tube heating molding die according to claim 3, characterized in that: Four supporting feet (3) are fixed to the bottom of the lower mold assembly (2), and the ends of the supporting feet (3) are fixed to the cement foundation via expansion bolts.

5. The glass fiber composite molding tube heating molding die according to claim 1, characterized in that: The seat holes (102) on both sides of the mold base (101) are plugged with connecting rods (4), and a fixing pin (5) is fixedly provided at one end of the connecting rod (4).

6. A glass fiber composite molding tube heating molding die according to claim 5, characterized in that: A movable pin (6) is movably provided at the other end of the connecting rod (4), and through holes (7) are provided through both sides of the connecting rod (4).

7. A glass fiber composite molding tube heating molding die according to claim 6, characterized in that: A fastening bolt (8) is inserted into the through hole (7), and the fastening bolt (8) combines the upper mold assembly (1) and the lower mold assembly (2) into a whole through the connecting rod (4).

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