Die for glass fiber reinforced plastic flange

Abstract

The utility model discloses a mould for a glass fiber reinforced plastic flange. The mould comprises a mould main body, a positioning point, a supporting bolt, a demoulding steel plate and a quick connecting assembly, according to the flange demolding device, the supporting bolts are arranged to be matched with the demolding steel plate, so that the flange demolding efficiency is improved, in the follow-up mold repairing process, convenient replacement is achieved, the follow-up manufacturing efficiency is improved, the positioning points are arranged, the drilling position can be formed, the drilling efficiency is improved, and the service life of a drill bit is prolonged; under transmission of the transmission locking structure, the transmission blocks arranged on the two sides can drive the clamping strips connected to the bottoms oppositely or reversely, so that the clamping blocks and the inner grooves formed in the inner sides of the supporting bolts are rapidly clamped, butted or disassembled, it is guaranteed that the supporting bolts and the demolding steel plate can be conveniently disassembled and assembled, too many tedious steps are not needed, and convenient disassembly and assembly cooperation is achieved; the preparation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for a glass fiber reinforced plastic flange. Background Art

[0002] At present, in FRP piping systems, in addition to sleeve joints, pipes can also be connected using FRP flanges. In particular, connections with steel parts such as valves can only be made using flanges. However, due to the limitations of FRP flange materials, their overall strength is weaker than that of metal flanges, and they need to be thickened to ensure production quality. Therefore, the production and manufacturing of flanges is crucial to piping systems.

[0003] At present, the production and manufacturing of FRP flanges are generally carried out through special molds. However, the molds used today lack certain auxiliary demoulding measures to improve the demoulding efficiency of FRP flanges when the FRP flanges are completed. As a result, the efficiency of FRP flange preparation using molds is affected to a certain extent. At the same time, after the production of FRP flanges is completed, drilling activities are required. Nowadays, this is generally achieved by drilling positioning molds and drill bits. In this way, there is wear between the drill bit and the positioning mold, which makes the drill bit and the mold have a low service life and needs to be replaced frequently.

[0004] Therefore, a new mold needs to be designed to meet the requirements of rapid demoulding after the preparation of the FRP flange and the pre-formation of the positioning holes. Utility Model Content

[0005] The purpose of the utility model is to provide a mold for a glass fiber reinforced plastic flange to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mold for a fiberglass flange, comprising a mold body, positioning points, support bolts, a demolding steel plate and a quick-connect assembly, wherein positioning points are provided on both sides of the bottom inner side of the mold body, support bolts are evenly distributed circumferentially on the outer side of the mold body, a demolding steel plate is docked on the inner side of the support bolts, a quick-connect assembly is provided inside the demolding steel plate, and the quick-connect assembly is connected to the inner side of the support bolts.

[0007] Preferably, the quick-connect assembly includes support rods provided on both sides of the interior of the demolding steel plate, clamping strips connected to the outer ends of the support rods on both sides, inner grooves opened at the inner outer ends of the support bolts, a transmission block fastened to the upper end of the clamping strips, a positioning ring fastened to one side of the interior of the demolding steel plate and connected to the inner side of the support bolts, and a transmission locking structure connected to the upper end of the transmission block.

[0008] Preferably, the transmission locking structure includes a connecting rod, a transmission bar provided at the lower end of the connecting rod and connected to the inside of the transmission block, a shell fastened to the upper end of the connecting rod, a guide rod inserted into the inside of the shell, a compression spring installed on the outside of the guide rod, a clamping block docked to the outside of the guide rod, a pull shaft inserted in the middle of one side of the clamping block, a guide plate fastened to one side of the upper end of the demolding steel plate and abutting the outside of the clamping block, and a clamping groove opened in the inside of the guide plate and connected to the side of the clamping block.

[0009] Preferably, the clamping strips are symmetrically installed along the two ends of the support rods on both sides, and inverted triangular grooves are provided in the middle of the clamping strips on both sides.

[0010] Preferably, the inner groove is provided on the outer side of the butt joint end of the support bolt and the demoulding steel plate, and the inner groove is connected to the clamping strips on both sides.

[0011] Preferably, both sides of the transmission bar are arranged in the shape of smooth inclined convex blocks, and the smooth convex portions on both sides of the transmission bar are slidably connected to the inside of the transmission block.

[0012] Preferably, the card block is slidably embedded in one side of the shell, and the overall size of the card block is smaller than the side size of the shell.

[0013] Preferably, the guide plates are provided at no less than two locations, and the two guide plates are provided with smooth inclined surfaces close to the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model improves the demoulding efficiency of the flange by arranging support bolts and demoulding steel plates that can cooperate with each other, and realizes convenient replacement in the subsequent mold repair process, thereby improving the subsequent preparation efficiency.

[0016] 2. The utility model sets a positioning point to form a drilling position, thereby reducing the use of drilling positioning molds and avoiding the occurrence of wear problems between the positioning molds and the drill bit, thereby improving the drilling efficiency and the life of the drill bit.

[0017] 3. The utility model is provided with a docking assembly, that is, under the transmission of the transmission locking structure, the transmission blocks provided on both sides can realize the relative or opposite driving of the bottom connecting clamping strips, thereby quickly clamping and docking or disassembling with the inner groove provided on the inner side of the support bolt, ensuring that the support bolt and the demoulding steel plate can be easily disassembled and assembled without too many tedious steps, achieving convenient disassembly and assembly, and improving preparation efficiency.

[0018] 4. The utility model sets a transmission locking structure inside the docking assembly, that is, by pushing and pulling the pull shaft, the connecting rod and the docking strip can be moved up and down, so that the docking strip can conveniently transmit the transmission blocks connected on both sides, so that the transmission blocks on both sides can realize the rapid clamping, docking or disassembly of the clamping strips connected at the bottom. When the pull shaft moves upward, the clamping block provided on one side of the shell can be moved along the inclined surface outside the guide plate, so that the clamping block can be moved inward to squeeze the compression spring provided on the outside of the guide rod, so that when the clamping block moves to the slot opened inside the upper end of the guide plate, the compression spring quickly rebounds and pushes the clamping block outward, so that the clamping block is stuck in the slot, thereby realizing auxiliary locking of the clamping docking state, ensuring the firmness of the docking combination of the support bolt and the demoulding steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of a layer of glass fiber surface felt paste of the utility model;

[0021] Figure 3 This is a schematic diagram of the alternate pasting of chopped strand mat and woven woven fabric in the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the quick-connect assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the inner groove of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the quick-connect assembly of the present invention;

[0025] Figure 7 For this utility model Figure 4 A in the middle is an enlarged structural diagram;

[0026] Figure 8 It is a three-dimensional schematic diagram of the transmission locking structure of the present utility model.

[0027] In the figure: mold body-1, positioning point-2, support bolt-3, demoulding steel plate-4, quick-connect assembly-5, support rod-51, clamping strip-52, inner groove-53, transmission block-54, positioning ring-55, transmission locking structure-56, connecting rod-561, transmission bar-562, shell-563, guide rod-564, compression spring-565, clamping block-566, pull shaft-567, guide plate-568, clamping slot-569. DETAILED DESCRIPTION

[0028] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0029] See also Figure 1-3 The utility model provides a mold for a glass fiber reinforced plastic flange, including a mold body 1, positioning points 2, supporting bolts 3, a demoulding steel plate 4 and a quick-connect assembly 5. Positioning points 2 are provided on both sides of the bottom of the mold body 1. Through the setting of the positioning points 2, the positioning of the drilling position can be realized in advance to ensure that there is no need to use a drilling positioning mold in the future. The positioning drilling of the glass fiber reinforced plastic flange can be realized directly by a drill bit, which greatly improves the drilling efficiency and the life of the drill bit. Support bolts 3 are evenly distributed on the outer circumference of the mold body 1, and the support bolts 3 are connected with the horizontal thread of the inner outer side of the mold body 1. The demoulding steel plate 4 is connected to the inner side of the support bolt 3. Through the setting of multiple demoulding steel plates 4, it can be conveniently moved outward after the subsequent preparation of the glass fiber reinforced plastic flange is completed, so as to realize convenient demoulding of the glass fiber reinforced plastic flange. A quick-connect assembly 5 is provided inside the demoulding steel plate 4, and the quick-connect assembly 5 is connected with the inner side of the supporting bolt 3. In this way, through the setting of the quick-connect assembly 5, when the demoulding steel plate 4 is damaged after repeated use, convenient disassembly and replacement can be realized.

[0030] See also Figure 4-8 The quick-connect assembly 5 in this embodiment includes a support rod 51 symmetrically installed on the upper and lower sides of the demoulding steel plate 4 for supporting and clamping the movable guide, a clamping strip 52 that is slidably docked at the outer ends of the support rods 51 on both sides to achieve quick clamping and docking, and an inner groove 53 is provided on the inner outer end of the support bolt 3. In this way, through the setting of the inner groove 53, it is possible to ensure that the clamping strips 52 on both sides effectively clamp the inner side of the support bolt 3, thereby preventing the inner side of the support bolt 3 and the demoulding steel plate 4 from becoming loose. Correspondingly, there are transmission blocks 54 installed on the upper ends of the clamping strips 52 on both sides, and the transmission blocks 54 on both sides are The relative surfaces are all smoothly inclined, and are fastened to the right side of the interior of the demoulding steel plate 4 and the positioning ring 55 connected to the inner side of the support bolt 3. In this way, the support bolt 3 and the demoulding steel plate 4 can be accurately and quickly plugged into the transmission locking structure 56 connected to the upper end of the transmission block 54, so that when the transmission locking structure 56 is transmitted, not only can the relative or opposite movement of the clamping strips 52 on both sides be realized, but also convenient locking assistance can be achieved when the clamping and docking activities are completed, thereby strengthening the clamping stability of the clamping strips 52 on both sides on the inner side of the support bolt 3, and further avoiding the occurrence of loose connection problems.

[0031] Among them, the transmission locking structure 56 includes a connecting rod 561 vertically inserted into the upper end of the demoulding steel plate 4, a transmission bar 562 fastened to the lower end of the connecting rod 561 and connected to the smooth inclined part of the transmission blocks 54 on both sides, and the connecting rod 561 and the transmission bar 562 are combined to form an inverted T-shaped strip, a shell 563 fastened to the upper end of the connecting rod 561, a guide rod 564 for moving the guide match is laterally inserted into the inside of the shell 563, and a compression spring 565 is installed on the outside of the guide rod 564 to provide elastic force to lock the external top connection, and the compression spring 565 is connected to the left side of the guide rod 564 to be elastically moved outward by the compression spring 565. The locked block 566 corresponds to a pull shaft 567 that is laterally inserted into the middle of the left side of the block 566, and the left side of the pull shaft 567 extends to the outer end of the demoulding steel plate 4, so that the user can easily push up or push down the transmission. The guide plate 568 is tightly connected to the left side of the upper end of the demoulding steel plate 4 and abuts against the outer side of the block 566. The guide plate 568 can be used to conveniently squeeze the block 566, so that the block 566 squeezes the compression spring 565 on the outer side of the guide rod 564 to realize a convenient preparation activity for the locking. Correspondingly, a slot 569 is provided inside the upper end of the guide plate 568 and is engaged with both sides of the block 566.

[0032] Among them, the clamping strips 52 are symmetrically installed along the two ends of the support rods 51 on both sides, and an inverted triangular groove is opened in the middle of the clamping strips 52 on both sides to ensure that the clamping strips 52 on both sides cooperate with the inverted triangular groove opened in the middle to combine with the inner groove 53 opened on the inner side of the support bolt 3 to achieve efficient clamping and docking activities; the inner groove 53 is opened on the outside of the docking end of the support bolt 3 and the demoulding steel plate 4, and the inner groove 53 is connected to the clamping strips 52 on both sides to ensure that after the inner groove 53 is connected to the clamping strips 52 on both sides, the support bolt 3 and the demoulding steel plate 4 can be firmly docked and the connection is not prone to loosening.

[0033] Among them, both sides of the transmission bar 562 are set in the shape of smooth inclined convex blocks, and the smooth convex parts on both sides of the transmission bar 562 are slidably connected to the inside of the transmission block 54. In this way, when the transmission bar 562 moves up and down, the relative or opposite transmission of the transmission blocks 54 on both sides can be conveniently realized; the card block 566 is slidably embedded in the inside of one side of the shell 563, and the overall size of the card block 566 is smaller than the side size of the shell 563, ensuring that the card block 566 can move smoothly to ensure the rapidity of the convenient clamping and locking process; the number of guide plates 568 is not less than two, and the two guide plates 568 are set in the shape of smooth inclined surfaces close to the connecting rod 561, ensuring that the guide plate 568 passes through the setting of the outer inclined surface, which can make the card block 566 and the compression spring 565 provided on the outside of the guide rod 564 efficiently combined, realizing rapid clamping and locking in the clamping docking state, and avoiding the occurrence of loose problems in the clamping docking state.

[0034] Here's how it works:

[0035] First, mold preparation and processing: Install the demoulding steel plate 4 inside the mold body 1 and adjust the position of the support bolts 3. Clean the surface of the mold body 1 to remove attachments to expose the mold's original color. Apply a layer of release agent evenly on the surface and let it dry.

[0036] Second, pipe cutting and polishing: The finished pipe is used inside the flange and is also used as the inner diameter mold. When designing the flange mold, the inner diameter of the mold can be smaller than the inner diameter of the finished pipe. According to the height of the flange, the corresponding pipe length is cut, and the paste part and the connection part with the joint are polished to expose the glass fiber.

[0037] Third, cutting and batching: Cut the glass fiber surface mat, chopped strand mat and woven fabric mat according to the specifications of the flange products to be manufactured, and batch the materials according to the gel time of 0.5 to 1.0 hours;

[0038] Fourth, paste the bottom shell and place the tube: first paste a layer of glass fiber surface felt and 2 to 4 layers of chopped strands of felt on the bottom of the mold body 1, and level it. Figure 2 As shown; the flange bottom shell is formed at this point;

[0039] Fifth, layer pasting: soak the chopped strand mat and woven fabric in resin and paste them alternately on the bottom shell, and roll them with a roller. After each cross-paste several layers, pause to solidify them. After solidification, polish the surface and continue pasting until the flange reaches the required thickness. Figure 3 As shown;

[0040] Sixth, demoulding and trimming: loosen the support bolts 3 and remove the demoulding steel plate 4 through the quick-connect assembly 5 to achieve the demoulding activity of the FRP flange and remove the flash, burrs and resin tumors at the same time;

[0041] Seventh, drilling: When the FRP flange material is placed inside the mold body 1, the bottom shell formed will cooperate with the positioning point 2 set inside the mold body 1 to realize the preliminary formation of the drilling position. Therefore, when drilling is required, a suitable hole opener can be selected according to the flange opening requirements, and the hole position formed by the positioning point 2 can be aligned to open the FRP flange;

[0042] Eighth, grinding: the flange surface and bolt locking surface after drilling are ground to complete the production and preparation of the FRP flange.

[0043] Among them, by setting the positioning point 2 at the inner bottom of the mold main body 1, the drilling position can be formed at the same time during the preparation of the glass room flange. In this way, there is no need to use the drilling positioning mold during subsequent drilling activities, which avoids the contact wear between the drill bit and the positioning mold and ensures the service life of the drill bit. At the same time, the provision of multiple support bolts 3 and demoulding steel plates 4 can realize convenient outward removal activities after the FRP flange is completed, thereby greatly improving the overall demoulding efficiency of the FRP flange and improving the preparation efficiency of the FRP flange. Secondly, the FRP flange is thicker and needs to be manufactured by multiple paste methods during the paste process. After each solidification, it needs to be polished before it can be pasted again. During the polishing process, the demoulding steel plate 4 is scratched by the angle grinder, which will affect the appearance of the flange. In order to avoid this problem, the mold main body 1 needs to be repaired. By replacing the demoulding steel plate 4, the repair time of the mold main body 1 can be greatly reduced. In this way, not only the appearance of the FRP flange is guaranteed, but also the production efficiency is improved.

[0044] The stripping plate 4 can be removed from the outer side of the support bolt 3 to achieve quick disassembly and replacement.

[0045] When it is necessary to re-docking the support bolt 3 and the demoulding steel plate 4, the support bolt 3 can be inserted into the demoulding steel plate 4 so that the inner side of the support bolt 3 is positioned and plugged with the positioning ring 55 provided on one side of the inner side of the demoulding steel plate 4 to ensure the accuracy of the docking combination. At the same time, the inner groove 53 provided on the inner side of the support bolt 3 will move between the clamping strips 52 on both sides. At this time, the pulling shaft 567 can be pulled up to realize the upward movement of the connecting rod 561 and the transmission bar 562. As the transmission bar 562 moves up and down, the transmission blocks 54 docked on both sides of the transmission bar 562 will realize relative movement. As a result, the clamping strips 52 on both sides will move back into the inner groove 53 to realize the clamping and docking activity on the inner side of the support bolt 3. At the same time, due to the setting of the inner groove 53, the support bolt 3 and the demoulding steel plate 4 are not prone to loosening when docking. Secondly, When the shell 563 moves upward with the pulling shaft 567, the block 566 slidably embedded in one side of the shell 563 will move inward along the smooth inclined surface of the outside of the guide plates 568 on both sides. In this way, the block 566 will move inward smoothly along the guide rod 564 provided inside the shell 563 and squeeze the compression spring 565 provided on the outside of the guide rod 564. When the squeezed inward block 566 moves to the slot 569 opened at the upper end of the inner part of the guide plates 568 on both sides along with the upward pull, the squeezed compression spring 565 will rebound to realize the elastic outward push of the block 566. As a result, the two sides of the block 566 will be clamped into the slot 569 opened at the upper end of the inner part of the guide plates 568 on both sides to realize the clamping and locking activity. In this way, the clamping and docking state of the clamping strips 52 on both sides can be made firm and not loose, ensuring the stability of the support bolt 3 and the demoulding steel plate 4 when re-docking.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mold for a glass fiber reinforced plastic flange, characterized by: The mold body (1) comprises a mold main body (1), a positioning point (2), a supporting bolt (3), a demoulding steel plate (4) and a quick-connect assembly (5), wherein the mold main body (1) is provided with positioning points (2) on both sides of the bottom inner side, the mold main body (1) is provided with supporting bolts (3) evenly distributed circumferentially on the outer side, the supporting bolts (3) are connected to the demoulding steel plate (4) on the inner side, the demoulding steel plate (4) is provided with a quick-connect assembly (5) inside, and the quick-connect assembly (5) is connected to the inner side of the supporting bolts (3).

2. The mold for a fiberglass flange according to claim 1, characterized in that: The quick-connect assembly (5) comprises support rods (51) provided on both sides of the interior of the demoulding steel plate (4), clamping strips (52) connected to the outer ends of the support rods (51) on both sides, an inner groove (53) provided at the inner outer end of the support bolt (3), a transmission block (54) fastened to the upper end of the clamping strip (52), a positioning ring (55) fastened to one side of the interior of the demoulding steel plate (4) and connected to the inner side of the support bolt (3), and a transmission locking structure (56) connected to the upper end of the transmission block (54).

3. The mold for a fiberglass flange according to claim 2, characterized in that: The transmission locking structure (56) includes a connecting rod (561), a transmission bar (562) provided at the lower end of the connecting rod (561) and connected to the inside of the transmission block (54), a shell (563) fastened to the upper end of the connecting rod (561), a guide rod (564) inserted into the inside of the shell (563), a compression spring (565) installed on the outside of the guide rod (564), a clamping block (566) docked to the outside of the guide rod (564), a pulling shaft (567) inserted into the middle of one side of the clamping block (566), a guide plate (568) fastened to one side of the upper end of the demoulding steel plate (4) and abutting against the outside of the clamping block (566), and a clamping groove (569) opened in the inside of the guide plate (568) and connected to the side of the clamping block (566).

4. The mold for a fiberglass flange according to claim 2, characterized in that: The clamping strips (52) are symmetrically installed along the two ends of the support rods (51) on both sides, and inverted triangular grooves are provided in the middle of the clamping strips (52) on both sides.

5. The mold for a fiberglass flange according to claim 2, characterized in that: The inner groove (53) is formed outside the butt joint end of the support bolt (3) and the demoulding steel plate (4), and the inner groove (53) is connected to the clamping strips (52) on both sides.

6. The mold for a fiberglass flange according to claim 3, characterized in that: Both sides of the transmission bar (562) are arranged in the shape of smooth inclined convex blocks, and the smooth convex portions on both sides of the transmission bar (562) are slidably connected to the interior of the transmission block (54).

7. The mold for a fiberglass flange according to claim 3, characterized in that: The block (566) is slidably embedded in one side of the housing (563), and the overall size of the block (566) is smaller than the side size of the housing (563).

8. The mold for a fiberglass flange according to claim 3, characterized in that: The guide plates (568) are provided at no less than two locations, and the guide plates (568) at the two locations are provided in the form of smooth inclined surfaces close to the connecting rod (561).

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