Hydraulic rubber hose vulcanization support

Abstract

This invention provides a hydraulic hose vulcanization support, effectively solving the problems of water droplets not being quickly removed and uneven heating of the hose surface during the vulcanization process in existing hydraulic hoses. The technical solution includes a frame and a holding tray. The frame has a fixed shaft with cylinders at both ends. A telescopic rod is located on the lower side of the middle of the fixed shaft, with small shafts on both sides of the telescopic rod. A double-ended screw is installed at the lower end of the telescopic rod, and a nut is screwed onto the double-ended screw, with the nut hinged to its corresponding small shaft. A rotatable cylinder is mounted on the small shaft, and the outer surface of the cylinder is covered with a sponge layer. The holding tray includes a circular plate with movable rods hinged around its perimeter. The circular plate and multiple movable rods form an umbrella-shaped structure. A base band is located on the upper surface of the umbrella-shaped structure, and multiple L-shaped limiting pins are located on the upper surface of the base band. The holding tray is placed on two cylinders, which divide the holding tray into front and rear parts. When the telescopic rod drives the small shafts to rotate, it can tap the front and rear parts of the holding tray, causing them to shake.

Description

Technical Field

[0001] This invention relates to the field of hydraulic hose manufacturing technology, and in particular to a hydraulic hose vulcanization support. Background Technology

[0002] Hydraulic hoses require vulcanizing supports during vulcanization. There are two main types: one uses a cylindrical coil, such as the horizontal cylindrical type described in CN113043507B and CN116277646A, which is evenly wound around the surface of the coil; the other uses a disc-shaped holding tray, around which the hydraulic hose is wound from the inside out, and multiple trays are stacked on top of each other with sufficient spacing to allow steam to enter smoothly. Both types of vulcanizing supports face the problem of water droplets formed after steam condenses on the hose surface not being able to drain in time. These water droplets severely affect the heat exchange between the hose surface and the hot steam, leading to under-vulcanization, delamination, and blistering during the vulcanization process.

[0003] The auxiliary vulcanizing equipment for hydraulic hose production disclosed in the aforementioned patent CN113043507B, by setting a vent hole 301, a fixing plate 302, a sleeve 303, a mounting plate 304, a through hole 305, a limiting rod 306, a sealing block 307, a first spring 308, a hole 309, a drainage groove 310, an inner cylinder 311, a piston 312, and a pipe diameter 313 in the support rod 3, forms a device similar to the function of a piston cylinder. Then, combined with the rotation of the support rod 3, it slides back and forth along the cavity of the support rod 3 under the action of gravity, so as to draw water droplets on the surface of the hose into the sleeve 303. In summary, this patent aims to achieve timely removal of water droplets through the rotation of three rollers and the suction principle of a piston. However, it has significant drawbacks in practical application: First, during the rotation of the rollers, water droplets are collected by multiple sleeves 303 and finally flow out through the rotating rod 2. Therefore, the roller speed cannot be too high, otherwise the centrifugal force will prevent the piston device from operating. Furthermore, a high roller speed will also prevent water droplets from smoothly entering the rotating rod 2. Under these conditions, especially in the initial stage of vulcanization, a large number of water droplets are rapidly generated on the surface of the hose, forming a downward fine stream. The fluidization efficiency of the area through which the fine stream passes will be affected. In short, the water droplets cannot be removed from the hose in a timely and rapid manner, which still seriously affects the vulcanization efficiency of the hose. Second, regardless of whether the hose is wound in multiple layers or a single layer, the hose will inevitably come into contact with the rollers. Since the hose and the rollers are relatively stationary, the surface of the hose will inevitably be heated unevenly.

[0004] To address the aforementioned issues, a hydraulic hose vulcanization support is provided. By modifying the traditional disc-shaped hose holding tray, the support is shaken during hose vulcanization to quickly and promptly remove water droplets from the hose surface, ensuring efficient heat exchange between the hose and steam. Furthermore, the outer surface of the hose can directly contact the steam during the shaking process, guaranteeing uniform surface vulcanization. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a hydraulic hose vulcanization support, which effectively solves the problems of water droplets not being quickly removed and uneven heating of the hose surface during the vulcanization process of existing hydraulic hoses.

[0006] The technical solution includes a shelf and a tray. A horizontal fixed shaft is fixed to the shelf, and rotatable cylinders are fitted at both ends of the fixed shaft, rotating in opposite directions. A vertical, actively rotatable telescopic rod is located on the lower side of the middle of the fixed shaft. Symmetrically arranged small shafts are located on both sides of the telescopic rod, with the upper ends of the small shafts hinged to the telescopic rod. A horizontal double-ended screw is installed at the lower end of the telescopic rod, with nuts corresponding to the small shafts screwed onto the double-ended screw. The nuts are hinged to their corresponding small shafts, allowing the telescopic rod to drive the small shafts to rotate together. The rotation of the double-ended screw controls the lower ends of the two small shafts to move closer or further apart. A rotatable rotating cylinder is fitted onto each small shaft, and the outer surface of the rotating cylinder is covered with a soft sponge layer.

[0007] The container includes a horizontal circular plate with multiple movable rods evenly distributed around its perimeter hinged around the plate. The circular plate and the multiple movable rods form an umbrella-shaped structure. A spiral base band is fixed on the upper surface of the umbrella-shaped structure. Multiple L-shaped limiting pins are fixed on the upper surface of the base band. The multiple limiting pins are evenly distributed along the length of the base band, and the limiting pins and the base band form a U-shaped structure with the opening facing the circular plate.

[0008] The tray is placed on two cylinders, which divide the tray into front and rear parts. The front and rear ends of the tray naturally tilt downwards. The two cylinders rotate in opposite directions, which can drive multiple movable rods to pass through the cylinders in sequence, thereby realizing the rotation of the tray. When the telescopic rod drives the small shaft to rotate, it can tap the front and rear parts of the tray to make it shake.

[0009] Furthermore, the telescopic rod includes a vertical spline shaft, a spline cylinder is fitted at the lower end of the spline shaft, a compression spring is connected between the lower end of the spline shaft and the lower end of the spline cylinder, the spline shaft has a protrusion corresponding to the upper end of the small shaft, the upper end of the small shaft is hinged to the protrusion; a U-shaped plate with an opening facing downward is fixed at the lower end of the spline cylinder, and a double-ended lead screw is rotatably mounted on the U-shaped plate.

[0010] Furthermore, a horizontal pinion is installed above the middle of the fixed shaft, and an end face gear is fixed on one end of the cylinders that are close to each other. The rotation of the pinion causes the two cylinders to rotate in opposite directions via the end face gear. The upper end face of the pinion is a spherical surface, and the radius of the sphere is equal to the outer diameter of the cylinder.

[0011] Furthermore, the upper end of the pinion is fixed with multiple vertical pins, and the circular plate has multiple limiting holes corresponding to the pins. The pinion can drive the circular plate to rotate through the multiple pins, thereby realizing the rotation of the entire holding tray.

[0012] Furthermore, the cylinder has multiple circumferentially distributed protrusions around its perimeter. As the cylinder rotates, these protrusions sequentially move the movable rod, thereby ensuring that the holding tray can rotate.

[0013] Furthermore, a dual-head motor is fixed in the middle of the fixed shaft, and the dual-head motor can drive the pinion and the telescopic shaft to rotate simultaneously.

[0014] This invention has a clever structure. By modifying the traditional disc-shaped rubber hose holding tray, the shaking during the rubber hose vulcanization process can quickly and promptly shake off water droplets on the surface of the rubber hose, ensuring the heat exchange efficiency between the rubber hose and the steam. Moreover, during the shaking, the outer surface of the rubber hose can directly contact the steam, ensuring uniform surface vulcanization. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 This is a front sectional view of the present invention.

[0017] Figure 3 for Figure 1 Sectional view of AA.

[0018] Figure 4 for Figure 1 BB section view.

[0019] Figure 5 This is an unfolded view of the tray in this invention (the limiting pins are not shown).

[0020] Figure 6 This is a structural diagram of the baseband and its upper limit pin in this invention. Detailed Implementation

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Depend on Figures 1 to 6 The present invention includes a frame 1 and a holding tray 2. A horizontal fixed shaft 3 is fixed on the frame 1. Rotatable cylinders 4 are fitted at both ends of the fixed shaft 3, and the two cylinders 4 rotate in opposite directions. A vertical telescopic rod that can be actively rotated is located on the lower side of the middle of the fixed shaft 3. Small shafts 5 are symmetrically arranged on the left and right sides of the telescopic rod. The upper end of the small shafts 5 is hinged to the telescopic rod. A horizontal double-ended screw 6 is installed at the lower end of the telescopic rod. Nuts corresponding to the small shafts 5 are screwed on the double-ended screw 6. The nuts are hinged to their corresponding small shafts 5. The telescopic rod can drive the small shafts 5 to rotate together. The rotation of the double-ended screw 6 can control the lower ends of the two small shafts 5 to move closer or further apart. A rotatable rotating cylinder 7 is fitted on the small shaft 5. The outer surface of the rotating cylinder 7 is covered with a soft sponge layer 8.

[0023] The holding tray 2 includes a horizontal circular plate 9. Multiple movable rods 10 are hinged around the circular plate 9 and are evenly distributed around the circumference. The circular plate 9 and the multiple movable rods 10 form an umbrella-shaped structure. A spiral base band 11 is fixed on the upper surface of the umbrella-shaped structure. Multiple L-shaped limiting pins 12 are fixed on the upper surface of the base band 11. The multiple limiting pins 12 are evenly distributed along the length direction of the base band 11. The limiting pins 12 and the base band 11 form a U-shaped structure with the opening facing the circular plate 9.

[0024] The tray 2 is placed on two cylinders 4, which divide the tray 2 into front and rear parts. The front and rear ends of the tray 2 naturally tilt downwards. The two cylinders 4 rotate in opposite directions, which can drive multiple movable rods 10 to pass through the cylinders 4 in sequence, thereby realizing the rotation of the tray 2. When the telescopic rod drives the small shaft 5 to rotate, it can pat the front and rear parts of the tray 2 to make it shake.

[0025] In order to install the double-ended lead screw 6 and to adjust the amplitude of the shaking at both ends of the holding tray 2, the telescopic rod includes a vertical spline shaft 13, a spline cylinder 14 is fitted at the lower end of the spline shaft 13, a compression spring is connected between the lower end of the spline shaft 13 and the lower end of the spline cylinder 14, the spline shaft 13 has a protrusion 15 corresponding to the upper end of the small shaft 5, and the upper end of the small shaft 5 is hinged to the protrusion 15; a U-shaped plate 16 with an opening facing downward is fixed at the lower end of the spline cylinder 14, and the double-ended lead screw 6 is rotatably mounted on the U-shaped plate 16.

[0026] In order to achieve the opposite rotation of the two cylinders 4, a horizontal pinion 17 is installed above the middle of the fixed shaft 3, and an end face gear 18 is fixed on the end of the cylinders 4 that are close to each other. The rotation of the pinion 17 drives the two cylinders 4 to rotate in opposite directions through the end face gear 18. The upper end face of the pinion 17 is a spherical surface, and the radius of the spherical surface is equal to the outer diameter of the cylinder 4.

[0027] In order to prevent misalignment during the rotation of the holding tray 2, the upper end of the pinion 17 is fixed with multiple vertical pins 19, and the circular plate 9 has multiple limiting holes corresponding to the pins 19. The pinion 17 can drive the circular plate 9 to rotate through the multiple pins 19, thereby realizing the rotation of the entire holding tray 2.

[0028] In order to reduce the force on the pin 19 and avoid the pin 19 from being damaged due to excessive force, there are multiple circumferentially distributed protrusions 20 around the cylinder 4. When the cylinder 4 rotates, the protrusions 20 sequentially move the movable rod 10 to ensure that the holding tray 2 can rotate.

[0029] In order to provide power to the pinion 17 and the telescopic rod, a double-headed motor 21 is fixed in the middle of the fixed shaft 3. The double-headed motor 21 can drive the pinion 17 and the telescopic shaft to rotate simultaneously.

[0030] It is worth noting that the baseband 11 needs to be made of high temperature resistant material, which is flexible but cannot be stretched axially. There are many ways to manufacture it, such as using chainmail manufacturing process, weaving multiple flexible steel wires, or using high temperature resistant and non-elastic fabric, etc. These are all well known in the field and will not be elaborated on in this article.

[0031] In addition, a bearing is installed between the cylinder 4 and the fixed shaft 3, a bearing is installed between the double-ended lead screw 6 and the side plate of the U-shaped plate 16, and a bearing is installed between the rotating cylinder 7 and the small shaft 5. All bearings are equipped with high-temperature resistant sealing rings.

[0032] In use, first place the holding tray 2 horizontally, and arrange the rubber tube along the length of the base belt 11. The rubber tube is fixed by numerous L-shaped limiting pins 12. Then place the holding tray 2 on the two cylinders 4, as follows. Figure 1 As shown, finally start the motor and place it inside the vulcanizing tank, close the vulcanizing tank cover, and begin the vulcanization operation. As steam enters, water droplets appear on the surface of the hose. At this time, the dual-head motor 21 drives two small shafts 5 to rotate around the telescopic rod via the telescopic rod. Since the naturally drooping parts at the front and rear ends of the holding tray 2 are on the path of the small shafts 5 rotating around the telescopic rod, there is interference between them. Therefore, during the rotation, the small shafts 5 can push the drooping parts at the front and rear ends of the holding tray 2 on their rotation path. In this way, as the small shafts 5 rotate, the rotating cylinders 7 on the outside of the small shafts 5 alternately beat the drooping parts of the holding tray 2, achieving shaking. In the beating and shaking, the water droplets on the surface of the hose are directly shaken off. During this process, the water droplets will not accumulate, reducing the time the water droplets stay on the surface of the hose. At the same time, the rotation of the dual-head motor 21 drives the cylinders 4 on both sides to rotate in the opposite direction via the small gear 17 above it. The pin 19 of the small gear 17 drives the circular plate 9 to rotate. At the same time, the cylinders 4 also push the movable rod 10 to rotate in turn via the multiple protrusions 20 on them. In this way, the holding tray 2 is rotated, and the surface of the hose is heated evenly.

[0033] As described above, as the tubing rotates with the tray 2, the multiple movable rods 10 continuously swing up and down relative to the circular plate 9. Therefore, the contact area between the tubing and the tray 2 changes continuously within a small range, and the contact point is not fixed. This ensures that the entire surface of the tubing is uniformly heated and vulcanized in the hot steam.

[0034] Of course, in order to save costs, a dual-head motor 21 is used in this invention, but this does not mean that it is the only option. Two motors can also be used to drive the rotation of the pinion 17 and the telescopic rod respectively. This allows for flexible adjustment of the rotation speed of the pinion 17 and the telescopic rod, which is more convenient and has a better effect.

[0035] In this invention, the traditional simple disc-shaped holding tray 2 is improved into an umbrella-shaped structure composed of a circular plate 9, a base belt 11, and multiple movable rods 10. When the holding tray 2 is placed on two cylinders 4, the holding tray 2 is divided into front and rear parts. Then, when the small shaft 5 rotates around the telescopic rod, it can beat the drooping part of the holding tray 2, thereby shaking the rubber tube and shaking off the water droplets on the surface of the rubber tube directly, reducing the residence time of water droplets on the rubber tube and ensuring the vulcanization effect of the rubber tube.

[0036] The present invention has a clever structure. By modifying the traditional disc-shaped rubber hose holding tray 2, the water droplets on the surface of the rubber hose can be shaken off quickly and promptly during the vulcanization of the rubber hose, so as to ensure the heat exchange efficiency between the rubber hose and the steam. Moreover, the outer surface of the rubber hose can be in direct contact with the steam during the shaking, so as to ensure uniform vulcanization of the surface.

Claims

1. A hydraulic hose curing stand, characterized by, The utility model provides a kind of automatic shaking device for seedling tray, including shelf (1) and holding tray (2), the shelf (1) is fixed with horizontal fixed shaft (3), fixed shaft (3) both ends are equipped with rotatable cylinder (4), two cylinder (4) keep reverse rotation;Fixed shaft (3) middle part downside has vertical and can be driven to rotate telescopic link, telescopic link left and right sides have symmetrically arranged small shaft (5), small shaft (5) upper end is hinged in protruding portion (15), telescopic link lower end is equipped with horizontal double-head screw (6), double-head screw (6) is screwed with the nut corresponding with small shaft (5), nut and its corresponding small shaft (5) are hinged, telescopic link can drive small shaft (5) to rotate together;Double-head screw (6) rotation can control two small shaft (5) lower end mutually close or away;The small shaft (5) is equipped with rotatable rotating drum (7), and the outer surface of rotating drum (7) is wrapped with soft sponge layer (8); The holding tray (2) includes a horizontal circular plate (9), and a plurality of movable rods (10) are hingedly connected around the circular plate (9) in a circumferentially uniform manner. The circular plate (9) and the plurality of movable rods (10) form an umbrella-shaped structure. A helical base strip (11) is fixed on the upper surface of the umbrella-shaped structure. A plurality of L-shaped limiting nails (12) are fixed on the upper surface of the base strip (11) and are uniformly distributed along the length direction of the base strip (11). The limiting nails (12) and the base strip (11) form a U-shaped structure with an opening facing the circular plate (9). The holding tray (2) is placed on the two cylinders (4), and the two cylinders (4) divide the holding tray (2) into front and rear parts. The front and rear ends of the holding tray (2) naturally incline downward. The reverse rotation of the two cylinders (4) can drive the plurality of movable rods (10) to pass through the cylinders (4) in sequence, thereby realizing the rotation of the holding tray (2). When the telescopic link drives the small shaft (5) to rotate, it can beat the front and rear parts of the holding tray (2) to make them vibrate.

2. The hydraulic hose curing rack of claim 1, wherein, The telescopic link includes a vertical spline shaft (13). A spline cylinder (14) is sleeved on the lower end of the spline shaft (13). A compression spring is connected between the lower end of the spline shaft (13) and the lower end of the spline cylinder (14). The spline shaft (13) has a protruding portion (15) corresponding to the upper end of the small shaft (5). The upper end of the small shaft (5) is hingedly connected to the protruding portion (15). The lower end of the spline cylinder (14) is fixed with a U-shaped plate (16) with an opening facing downward. The double-head screw (6) is rotatably installed on the U-shaped plate (16).

3. The hydraulic hose curing stand of claim 1, wherein, A horizontal pinion (17) is installed on the upper middle part of the fixed shaft (3). An end face gear (18) is fixed on one end of the cylinder (4) that is close to each other. The rotation of the pinion (17) drives the two cylinders (4) to rotate in opposite directions through the end face gear (18). The upper end surface of the pinion (17) is a spherical surface with a radius equal to the outer diameter of the cylinder (4).

4. The hydraulic hose curing stand of claim 1, wherein, A plurality of vertical pins (19) are fixed on the upper end of the pinion (17). The circular plate (9) has a plurality of limiting holes corresponding to the pins (19). The pinion (17) can drive the circular plate (9) to rotate through the plurality of pins (19), thereby realizing the rotation of the entire holding tray (2).

5. The hydraulic hose curing stand of claim 1, wherein, The cylinder (4) is provided with a plurality of convex blocks (20) distributed in a circle, and the cylinder (4) drives the movable rods (10) through the convex blocks (20) in rotation, thereby ensuring that the containing disc (2) can rotate.

6. The hydraulic hose curing stand of claim 1, wherein, The middle part of the fixed shaft (3) is fixed with a double-head motor (21), and the double-head motor (21) can drive the pinion (17) and the telescopic shaft to rotate simultaneously.

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