CN109774198B - Working platform for producing glass fiber reinforced plastic products - Google Patents

Abstract

A working platform for producing glass fiber reinforced plastic products. Many products have large flat surfaces in hand lay-up to make glass fiber reinforced plastic products. These planes are all fabricated on a single work platform. The flatness and local defects of the platform affect the flatness and surface quality of the glass fiber reinforced plastic product. And the resin can be continuously sprayed and brushed on the platform in the hand pasting process. Because the resin is difficult to remove after being cured, the resin is stained on the whole platform surface and is uneven for a long time, and a layer of uneven object is formed. The flatness of the entire stage is greatly deteriorated. So that ordinary concrete platforms (surfaces) are not suitable for this (i.e. the effect of using steel platforms is also the case). The invention is based on the concrete platform, the surface of the platform is adhered with a layer of rubber plate. The resin sprinkled on the rubber sheet is easily removed. The solidified resin is removed in time, the flatness requirement of the platform can be kept for a long time, and the working platform is easy to renovate due to the fact that the rubber flat plate is updated.

Description

Working platform for producing glass fiber reinforced plastic products

Technical Field

The surface of the platform is made of rubber, and solidified resin bonded on the surface of the platform is easy to be removed so as to keep the flatness of the platform and easily renovate a rubber plate.

Background

Many products have large flat surfaces in hand lay-up to make glass fiber reinforced plastic products. These planes are all fabricated on one platform. The flatness and local defects of the platform affect the flatness and surface quality of the glass fiber reinforced plastic product. In the production of hand-pasted glass fiber reinforced plastic products, resin can be continuously sprayed and brushed on the platform. The solidified resin is bonded and pulled with the surface of the cement and is difficult to remove. The resin is contaminated over the entire surface of the platform. For the surface of a concrete platform, the repeatedly-polluted resin is gradually solidified and firmly fixed on the platform day by day, and a layer of rugged and difficult-to-remove object is formed. These imperfections are all printed on the product (even if a layer of mylar is laid, flatness is only improved.) and the platform is difficult to renew, making a common concrete platform (surface) unsuitable for this purpose. The surface made of common steel, plastic and the like is difficult to clean and contaminate the solidified resin.

Disclosure of Invention

The invention mainly solves the problems that: resin which is continuously solidified on the surface of the platform for manually pasting and manufacturing the glass fiber reinforced plastic product can be easily removed, the original surface condition of the platform can be basically maintained through frequent removal, and the required flatness of the surface of the platform is ensured. In the selection, the rubber sheet can have the required properties: this is because it is a soft object, and the resin fixed thereon is locally deformed under a certain force of extrusion to easily separate from the resin, and microscopically, after local deformation is generated at a plurality of positions of each resin, local separation is generated. And is then easily scraped off. In terms of separating the soft and hard dissimilar material bonds alone (the affinity of the dissimilar materials, i.e., the degree of bond pull, is not considered here), the mechanism of this separation is: because the rubber plate is much softer than hard materials such as plastics, steel and the like, the hardness difference between the rubber plate and the solidified resin is very large, when the solidified resin is subjected to external force, the joint part of the solidified resin and the rubber plate is very soft due to the fact that the rubber is removed by the same force, the deformation generated by the rubber is much larger than that of the joint part of the two hard materials, and the deformation of each part is uneven. The place with large deformation of the rubber at the edge of the resin is separated in advance, and the separated local rubber is elastically restored, so that the separation is promoted by the elastic force, and the continuous and smooth development of the separation is realized, and the tearing-open type separation is formed. The "difficult to remove" condition is created by the inability of the two materials to bond to each other under the same external force to create the "tear-open" separation described above, and by the difficulty of achieving the force required to achieve the "snap-open" separation. The separation can only be a forced 'snap' separation, which is naturally much more power-consuming, and the two separation modes differ in power by orders of magnitude, perhaps reaching a man-power-hard step. The rubber platform is used for achieving the purpose of being easy to remove, can meet the process requirements, and is an important consideration and clear in purpose of becoming an optimal design. In order for the rubber slab laid on the concrete platform to be flat and not to move, the rubber slab is connected with the concrete platform. The invention adopts a secondary grouting method: and pre-burying a rubber strip cut from the conveying belt, fixing the rubber strip on the concrete platform through secondary grouting, and bonding the rubber plate with the concrete platform. The adhesion between them not only prevents the rubber sheet from moving but also keeps the surface of the rubber sheet flat. Furthermore, the grid-like adhesive strips prevent the rubber sheet from freely deforming due to a swelling reaction which may occur when the rubber sheet is impregnated with an organic solvent contained in a resin while the resin is uncured. The connection mode can digest, limit and prevent the accumulation of deformation to a certain degree, thereby keeping the flatness relatively stable. The life of the rubber sheet is of course extended.

Has the advantages that: the conventional situation that great effort (poor effect) is required to remove the cured resin on the old platform is not reproduced. Because the resin solidified on the rubber surface of the platform can be easily removed, the lattice-bar type bonding positioning can ensure that the surface of the platform can always keep good flatness. The plane quality of the glass fiber reinforced plastic products produced on the glass fiber reinforced plastic composite material is greatly improved, and the market competitiveness of the products is enhanced. The cleaning labor intensity is reduced. And the rubber plate can be torn off and replaced, and is a high-quality working platform after replacement, and compared with the rubber plate, the rubber plate has the excellent characteristics of small updating investment and easiness.

Drawings

FIG. 1 is a 7 m square, 0.4 m high platform schematic of inventor's company

FIG. 2 is a wood pile height-fixing hammering rod

FIG. 3 shows a part of a two-direction rubber strip

FIG. 4 is a hammer shank for controlling the depth of nail driving for installing a rubber strip for driving a nail

FIG. 5 shows the rubber strip being mounted for holding the rubber strip in a level position to allow the rubber strip to be laid flat

FIG. 6 shows a roller for removing the cured resin from the rubber sheet

Description of the drawings: 101, a working platform, 102 fixed-height timber piles, 103 pre-embedded rubber strips under the connecting seam of two rubber plates, and 104 small steel rods which are transversely drilled and penetrated in the pre-embedded rubber strips; 201, fixing a height of a wood pile hammering rod, 202 fixing a height of a hammering surface and 203 fixing a height of a hammering hole; 301 pre-burying rubber strips; 401 a knocking rod for installing a rubber strip, 402 a nail knocking depth controller, 403 knocking a fixed high block and 404 a hollow groove for letting the fixed high block pass through the rubber strip; 501, a craft batten used for fixing height and supporting a rubber strip when the rubber strip is installed; 601 roller teeth, 602 remove special rollers of cured resin on the rubber sheet.

Detailed Description

In order to level the rubber slab (a wide rubber slab for a high-voltage distribution room is selected and joints are few.) laid on the concrete 101 platform without moving, the rubber slab is connected with the concrete platform. The embodiment of the invention preferably adopts a secondary grouting method: on the manufactured foundation platform 101, a grinding machine for manufacturing the plane of the terrazzo ground is used to manufacture a foundation with higher planeness. Rubber strips 103, 301 and the like are erected on a foundation platform with good flatness and levelness through equal-height wooden piles on the platform, multiple holes are transversely drilled in the embedded rubber strips, a plurality of small steel rods 104 penetrate through the holes, and the rubber strips which are firm (the old rubber plates are torn down when the rubber plates are replaced and only need to be done under the condition that the rubber strips are pulled and fixed) are obtained after secondary grouting. After the secondary grouting, a rubber strip which is used for bonding and fixing the rubber plate in a plane is obtained, besides the concrete, and the rubber strip is also pre-buried and cut from the transportation belt. After the equal-height timber piles 102 are drilled according to the drawing lines, the timber piles 102 are manually beaten under the control of the timber pile height-fixing beating rod 201 (the beating is stopped when the lower end face of the timber pile height-fixing beating rod touches the concrete surface, so that each timber pile is equal in height). The laying process of the pre-buried rubber strips comprises the following steps: the strip is nailed against the stake by the action of the craft wood strip 501 used to set the height of the strip, and the depth of the nail is controlled by the nail strike depth controller 402. When the rubber strip is installed, the hammering rod 401 is stopped by the nail hammering depth controller 402 when being hammered in place, and the nail is positioned at the same height. Finally, the rubber raised around the nail is ground off by an angle grinder. The craft wood strips 501 are moved with the rubber installation and finally completely sprinkled. And leveling the final concrete plane according to the plane of the rubber strip by secondary grouting. After the concrete is cured, the surfaces of the rubber strips 103, 301 and the like are cleaned. When the rubber plate is laid, all the rubber strips and the parts of the rubber plate corresponding to the rubber strips are polished, the glue for repairing the tire is smeared, and the rubber plate is adhered according to the mode of repairing the tire. And finally, obtaining the smooth working platform with high flatness. The rubber plate is adhered to the rubber leather strip, and the adhesion force between the rubber plate and the rubber leather strip not only prevents the rubber plate from moving, but also keeps the surface of the rubber plate flat. Furthermore, the lattice-type adhesive stripes formed prevent the rubber sheet from being freely deformed by a small amount of swelling reaction which may occur due to the impregnation with an organic solvent in some of the uncured resin. The rubber plates are also firmly bonded by a tire patch, and finally, daub can be filled in gaps if any. The connection mode can digest, limit and prevent the accumulation of deformation to a certain degree, thereby keeping the flatness of the whole rubber plate relatively stable and ensuring the surface of the rubber plate to be bright. The bonded and cured resin is rolled in a regular fashion with a specially made roller 602, 601 which is subjected to variable and concentrated forces that tend to cause partial detachment and then to be easily removed and "tear-open separation" which greatly reduces labor intensity. The life of the rubber sheet is of course extended.

Claims (1)

1. A work platform for producing glass fiber reinforced plastic products comprises a concrete foundation platform, wherein the surface of the foundation platform is processed by a method for manufacturing a terrazzo ground on the foundation platform so as to meet the requirement of higher flatness, and the work platform is characterized in that: arranging a large number of equal-height wooden piles on a foundation platform, nailing rubber strips on the wooden piles, performing secondary concrete grouting on the upper planes of the rubber strips to be equal in height to obtain fixed pre-embedded rubber strips, laying a layer of rubber plate on the foundation platform after the secondary concrete grouting, and bonding the laid rubber plate with the rubber strips to form a working platform.

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