Portable hot connection device for rubber sealing strips

Abstract

The invention discloses a rubber sealing strip portable hot connection device which comprises a butt joint module and a temperature control module, the butt joint module comprises a left half mold and a right half mold, the left half mold is composed of a left half mold upper mold and a left half mold lower mold which are spliced with each other, and the temperature control module is composed of a left half mold upper mold and a right half mold lower mold which are spliced with each other; the left half die is composed of a left half die upper die and a left half die lower die, and after the left half die upper die and the left half die lower die are spliced, a left special-shaped cavity used for containing a rubber sealing strip is formed in a die body of the left half die. The right half die is composed of a right half die upper die and a right half die lower die which are spliced with each other. After the right half die upper die and the right half die lower die are spliced, a right special-shaped cavity for placing the rubber sealing strip is formed in the die body of the right half die, and the left special-shaped cavity and the right special-shaped cavity are butted and communicated after the left half die and the right half die are spliced; the temperature control module is used for providing a heat source for the butt joint module when the butt joint module carries out sealing strip heat vulcanization bonding. According to the invention, the consistency and the stability of the joint can be ensured, the relatively high interface strength can be ensured, the operation is simple and convenient, and meanwhile, the vulcanization hot connection can be completed in a narrow space.

Description

Technical Field

[0001] This invention relates to a portable heat-sealing device for rubber sealing strips, belonging to the field of heat-sealing sealing. Background Technology

[0002] As a key component of engineering equipment, seals ensure effective isolation between the sealed and unsealed media. In recent years, with the rapid development of the wind power industry, seals used in wind turbines have also developed rapidly, especially those for yaw and pitch functions. The yaw and pitch bearings of wind turbines are located outside the nacelle and are constantly subjected to complex conditions such as varying wind speeds and directions, rain, dust, ultraviolet radiation, and ozone. Over time, the exposed rubber sealing strips gradually age, leading to a decline in sealing performance and even seal failure.

[0003] For seal failure, rapid and effective replacement is key to reducing fan downtime. Currently, linear meter-long sealing strips are commonly used for replacement, followed by bonding the joint with instant adhesive. However, it should be noted that all instant adhesive products have two significant drawbacks: they cannot withstand impact loads and have poor grease resistance. These defects prevent the seals from meeting the requirements of long-term operation under complex conditions. Once the seal joint cracks, it needs to be replaced again, undoubtedly increasing maintenance costs and workload.

[0004] This invention addresses this pain point by innovatively designing a portable heat-bonding device that combines the vulcanization bonding method of sealing ring joints. This device can effectively complete the vulcanization bonding of sealing strips without relying on large docking machines, and can perform vulcanization bonding of sealing strip joints on a fan. Summary of the Invention

[0005] The purpose of this invention is to provide a portable heat-bonding device for rubber sealing strips, which can be used to complete the vulcanization and bonding of sealing strips on a fan.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a portable heat-bonding device for rubber sealing strips, comprising a docking module and a temperature control module. The docking module includes a left half mold and a right half mold. The left half mold is composed of an upper left half mold and a lower left half mold that are spliced ​​together. After the upper left half mold and the lower left half mold are spliced ​​together, a left irregular cavity for placing the rubber sealing strip is formed inside the mold body of the left half mold. The right half mold is composed of an upper right half mold and a lower right half mold that are spliced ​​together. After the upper right half mold and the lower right half mold are spliced ​​together, a right irregular cavity for placing the rubber sealing strip is formed inside the mold body of the right half mold. The left irregular cavity and the right irregular cavity are docked and connected after the left half mold and the right half mold are spliced ​​together. The temperature control module is used to provide a heat source for the docking module during the heat vulcanization bonding of the sealing strip.

[0007] Furthermore, the left and right half molds are guided and assembled by a mounting plate. The upper surface of the mounting plate is provided with a dovetail protrusion, and the bottom of both the lower left and right half molds is provided with a dovetail groove that matches the dovetail protrusion.

[0008] Furthermore, the lower surfaces of the left half upper mold and the right half upper mold are provided with trapezoidal protrusions, and the upper surfaces of the left half lower mold and the right half lower mold are provided with trapezoidal grooves. The trapezoidal protrusions and trapezoidal grooves cooperate with each other to limit the upper mold and the lower mold when they are spliced.

[0009] Furthermore, the upper and lower left half molds are respectively provided with left upper mold left and right through holes and left lower mold left and right through holes, and the upper and lower right half molds are respectively provided with right upper mold left and right through holes and right lower mold left and right through holes; the upper left and upper right half molds are fixed by left and right connecting bolts inserted into the left upper mold left and right through holes and the left upper mold right through holes, and the lower left and lower right half molds are fixed by left and right connecting bolts inserted into the left lower mold left and right through holes and the right lower mold left and right through holes.

[0010] Furthermore, the upper left half mold is provided with a vertical through hole for the upper left mold, and the lower left half mold is provided with a vertical threaded hole for the lower left mold. The upper left half mold and the lower left half mold are fixed by upper and lower connecting bolts inserted into the vertical through hole for the upper left mold and the vertical threaded hole for the lower left mold.

[0011] Furthermore, the upper right half mold is provided with a vertical through hole, and the lower right half mold is provided with a vertical threaded hole. The upper right half mold and the lower right half mold are fixed by upper and lower connecting bolts inserted into the vertical through hole and the vertical threaded hole.

[0012] Furthermore, the upper right half mold and the lower right half mold are respectively provided with vertical heating through holes for placing thermocouples in the upper right mold and the lower right mold.

[0013] Furthermore, the temperature control module includes a temperature control box and a thermocouple, which is heated by being inserted into the docking module.

[0014] The beneficial effects of this invention are as follows:

[0015] (1) The central cavity after the docking module is installed can be designed according to the shape of the product without any limitations.

[0016] (2) The docking module positions the upper and lower molds through trapezoidal inclined surfaces and the left and right molds through dovetail grooves, ensuring the consistency between the cavity shape and the sealing strip to be heated, and does not require high operator proficiency.

[0017] (3) The docking module is positioned by the boss and fastened by bolts, which has the characteristics of simple and convenient operation and provides the necessary temperature and pressure conditions for the hot vulcanization bonding of rubber sealing strips.

[0018] (4) The portable heat welding device combining the docking module and the temperature control module is suitable for the vulcanization docking of sealing strips in any environment, without the limitations of space or equipment.

[0019] (5) This invention is not limited to heat-sealing of sealing strips in the wind power industry, but can also be applied to sealing strips in other industries or other items that require heat-sealing.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the left half of the model.

[0022] Figure 2 This is the structural diagram of the right half of the model.

[0023] Figure 3 This is a structural diagram of the mounting plate.

[0024] The diagram is labeled as follows: A is the upper left half mold, A-1 is the left and right through holes of the upper left mold, A-2 is the irregularly shaped groove of the upper left mold, A-3 is the trapezoidal protrusion of the upper left mold, and A-4 is the vertical through hole of the upper left mold. B is the lower left half mold, B-1 is the left and right through holes of the lower left mold, B-2 is the trapezoidal groove of the lower left mold, B-3 is the vertical threaded hole of the lower left mold, B-4 is the dovetail groove of the lower left mold, and B-5 is the irregularly shaped groove of the lower left mold. C is the upper right half mold, C-1 is the left and right through holes of the upper right mold, C-2 is the irregularly shaped groove of the upper right mold, C-3 is the trapezoidal protrusion of the upper right mold, C-4 is the vertical through hole of the upper right mold, and C-5 is the vertical heating through hole of the upper right mold. D is the lower right half mold; D-1 is the left and right through holes of the lower right mold; D-2 ​​is the trapezoidal groove of the lower right mold; D-3 is the vertical threaded hole of the lower right mold; D-4 is the vertical heating through hole of the lower right mold; D-5 is the dovetail groove of the lower right mold; D-6 is the irregularly shaped groove of the lower right mold. E is the mounting plate; E-1 is the dovetail protrusion. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 3As shown, a portable heat-bonding device for rubber sealing strips includes a docking module and a temperature control module. The docking module includes a left half mold and a right half mold. The left half mold consists of an upper left half mold A and a lower left half mold B spliced ​​together. After splicing, the upper left half mold A and the lower left half mold B form a left irregular cavity inside the mold body of the left half mold for placing the rubber sealing strip. The right half mold consists of an upper right half mold C and a lower right half mold D spliced ​​together. After splicing, the upper right half mold C and the lower right half mold D form a right irregular cavity inside the mold body of the right half mold for placing the rubber sealing strip. The left irregular cavity and the right irregular cavity are docked and connected after the left and right half molds are spliced ​​together. The temperature control module is used to provide a heat source for the docking module during the heat vulcanization bonding of the sealing strip.

[0027] In this embodiment, the left half mold and the right half mold are guided and spliced ​​by the mounting plate E. The mounting plate E is a square plate with a dovetail protrusion E-1 on its upper surface. The bottom of the lower mold of the left half mold B and the lower mold of the right half mold D are both provided with dovetail grooves that cooperate with the dovetail protrusion E-1.

[0028] In this embodiment, the lower surfaces of the left half upper mold A and the right half upper mold C are provided with trapezoidal protrusions, and the upper surfaces of the left half lower mold B and the right half lower mold D are provided with trapezoidal grooves. The trapezoidal protrusions and trapezoidal grooves cooperate with each other to limit the upper and lower molds during splicing.

[0029] In this embodiment, the upper left mold A and the lower left mold B are respectively provided with left upper mold left and right through holes A-1 and B-1, respectively; the upper right mold C and the lower right mold D are respectively provided with upper right mold left and right through holes C-1 and D-1, respectively; wherein the upper left mold and the upper right mold are fixed by left and right connecting bolts (M8 60mm long butterfly bolts) inserted into the left upper mold left and right through holes A-1 and C-1, respectively; and the lower left mold and the lower right mold are fixed by left and right connecting bolts (M8 60mm long butterfly bolts) inserted into the left lower mold left and right through holes B-1 and D-1, respectively.

[0030] In this embodiment, the upper left mold A is provided with a vertical through hole A-4, and the lower left mold is provided with a vertical threaded hole B-3. The upper and lower left molds are fixed by upper and lower connecting bolts (M8 bolts, 50mm long) inserted into the vertical through hole A-4 and the vertical threaded hole B-3. The upper right mold is provided with a vertical through hole C-4, and the lower right mold is provided with a vertical threaded hole D-3. The upper and lower right molds are fixed by upper and lower connecting bolts (M8 bolts, 50mm long) inserted into the vertical through hole C-4 and the vertical threaded hole D-3.

[0031] In this embodiment, the temperature control module uses a commercially available 2KW intelligent temperature control box (brand: Yuanhuang), which includes a temperature control box and thermocouples. The thermocouples are heated by inserting into a docking module. The upper right mold C and the lower right mold D are respectively provided with vertical heating through-holes C5 and D4 for placing the thermocouples. During the heating process, the thermocouples can be inserted into the two heating through-holes.

[0032] The working process of this invention is as follows: First, the upper mold A of the left half is placed above the lower mold B of the left half. It is positioned by the trapezoidal protrusion A-3 of the upper mold and the trapezoidal groove B-2 of the lower mold. Upper and lower connecting bolts are then used to connect the upper and lower molds by passing through the vertical through hole A-4 of the upper mold and connecting it to the vertical threaded hole B-3 of the lower mold, thus connecting the upper and lower molds into one unit. Similarly, the upper mold C of the right half is placed above the lower mold D of the right half. It is positioned by the trapezoidal protrusion C-3 of the upper mold and the trapezoidal groove D-2 of the lower mold. Upper and lower connecting bolts are then used to connect the upper and lower molds by passing through the vertical through hole C-4 of the upper mold and connecting it to the vertical threaded hole D-3 of the lower mold, thus connecting the upper and lower molds into one unit. Then, the lower molds are installed onto the dovetail protrusion of the mounting plate E through dovetail grooves, and the left and right half molds are connected together by left and right connecting bolts. Next, insert the thermocouple of the temperature control box into the vertical heating through hole, operate the control panel, set the heating temperature, turn on the switch, and wait for the docking module to complete the preheating.

[0033] After the docking module has completed preheating, turn off the temperature control module. Loosen the left and right connecting bolts and the top and bottom connecting bolts in sequence. Insert one end of the sealing strip to be docked into the irregular cavity formed by the left half mold and tighten the top and bottom connecting bolts. Insert the other end of the sealing strip into the irregular cavity formed by the right half mold and tighten the top and bottom connecting bolts. Place the prepared heat bonding film in the middle of the sealing strip and tighten the left and right connecting bolts. Turn on the temperature control module and control the heating time as required to complete the heat bonding and vulcanization of the sealing strip.

[0034] This method of completing the sealing strip connection can ensure the consistency and stability of the joint, as well as the high interface strength. The operation is simple and convenient. At the same time, this connection device has almost no requirements for space or environment, and can meet the requirements of completing the vulcanization heat welding of the sealing strip in confined spaces such as on the fan.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of the present invention in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of the present invention. Parts not covered in this invention are the same as or can be implemented using existing technology.

Claims

1. A portable heat-sealing device for rubber sealing strips, characterized in that, The system includes a docking module and a temperature control module. The docking module comprises a left half mold and a right half mold. The left half mold consists of an upper left half mold and a lower left half mold that are spliced ​​together. After the upper and lower left half molds are spliced ​​together, a left irregular cavity for placing a rubber sealing strip is formed inside the left half mold body. The right half mold consists of an upper right half mold and a lower right half mold that are spliced ​​together. After the upper and lower right half molds are spliced ​​together, a right irregular cavity for placing a rubber sealing strip is formed inside the right half mold body. The left and right irregular cavities are connected after the left and right half molds are spliced ​​together. The temperature control module provides a heat source for the docking module during the heat vulcanization bonding of the sealing strip.

2. The portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The left and right half molds are guided and assembled by a mounting plate. The upper surface of the mounting plate is provided with a dovetail protrusion, and the bottom of both the lower left and right half molds is provided with a dovetail groove that matches the dovetail protrusion.

3. The portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The lower surfaces of the left half upper mold and the right half upper mold are provided with trapezoidal protrusions, and the upper surfaces of the left half lower mold and the right half lower mold are provided with trapezoidal grooves. The trapezoidal protrusions and trapezoidal grooves cooperate with each other to limit the upper mold and the lower mold when they are spliced.

4. The portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The upper and lower mold halves of the left mold are respectively provided with left upper mold left and right through holes and left lower mold left and right through holes, and the upper and lower mold halves of the right mold are respectively provided with right upper mold left and right through holes and right lower mold left and right through holes. The upper and lower mold halves of the left and right molds are fixed by left and right connecting bolts inserted into the left upper mold left and right through holes and the right upper mold left and right through holes, and the lower mold halves of the left and right molds are fixed by left and right connecting bolts inserted into the left lower mold left and right through holes and the right lower mold left and right through holes.

5. A portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The upper mold of the left half is provided with a vertical through hole for the upper left mold, and the lower mold of the left half is provided with a vertical threaded hole for the lower left mold. The upper mold of the left half and the lower mold of the left half are fixed by upper and lower connecting bolts inserted into the vertical through hole of the upper left mold and the vertical threaded hole of the lower left mold.

6. A portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The upper right half mold is provided with a vertical through hole, and the lower right half mold is provided with a vertical threaded hole. The upper right half mold and the lower right half mold are fixed by upper and lower connecting bolts inserted into the vertical through hole and the vertical threaded hole.

7. A portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The upper right half mold and the lower right half mold are respectively provided with vertical heating through holes for placing thermocouples in the upper right mold and the lower right mold.

8. A portable heat-sealing device for rubber sealing strips according to claim 1, characterized in that, The temperature control module includes a temperature control box and a thermocouple, which is heated by being inserted into a docking module.

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