Preparation device and preparation process of steel wire silica gel pipe

Abstract

The invention relates to the technical field of pipes, in particular to a preparation device and a preparation process of a steel wire silica gel pipe. The primary feeder is used for feeding the raw materials to the secondary feeder; the secondary feeding machine is connected with the primary feeding machine and used for receiving the raw materials fed by the primary feeding machine and enabling the feeding pressure to be larger and feeding to be more uniform; the machine head is connected with the secondary feeding machine and used for receiving the materials fed by the secondary feeding machine, and a steel wire shaping device is arranged in the machine head and used for shaping the steel wires and combining the steel wires with the materials; compared with a traditional technology, the preparation device and the preparation technology of the steel wire silica gel pipe have the advantages that operation links are saved, repeated processing and raw material waste are avoided, energy is saved, secondary pollution is prevented, and the preparation device and the preparation technology of the steel wire silica gel pipe have good application prospects.

Description

Technical Field

[0001] This invention relates to the field of pipe technology, specifically to a preparation apparatus and process for steel wire silicone pipe. Background Technology

[0002] Silicone tubing serves as a carrier for the flow and encapsulation of liquids, gases, and other materials. In the industry, silicone rubber tubing can be categorized into "extruded tubing" and "shaped tubing." It is widely used in modern industry and everyday consumer goods. Steel wire silicone tubing is a type of silicone tubing filled with spiral steel wire, offering advantages such as high strength and good toughness.

[0003] Platinum silicone is a safe and non-toxic material widely used in medical, food, and baby product fields. Its component, silica, is naturally found in sand and gravel, has high biocompatibility, and is more in line with international food safety standards.

[0004] Currently, ordinary platinum silicone clamped steel wire hoses are basically produced using (1) vulcanizing tank method. Due to the influence of the length of the vulcanizing tank, the hose cannot be produced continuously, resulting in a relatively short length. (2) Ordinary processing method requires secondary or multiple processing, which easily contaminates the rubber material and causes waste. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention discloses a device for preparing steel wire silicone tubing, the technical solution of which includes a wire winding machine for winding steel wire into a spiral shape;

[0006] Primary feeder: Used to feed raw materials to the secondary feeder;

[0007] Secondary feeder: Connected to the primary feeder, it is used to receive the raw materials from the primary feeder and to increase the feeding pressure and make the feeding more uniform;

[0008] The head unit is connected to the secondary feeder and receives the material from the secondary feeder. It has a wire shaping device inside, which is used to shape the wire and combine it with the material.

[0009] Oven: Connected to the machine head, used to receive the compound output from the machine head and vulcanize the product.

[0010] As a preferred embodiment of the present invention, the shaping device includes a positioning ring and support plates. The side of the positioning ring is fixedly connected to one end of three support plates, and the other end of the three support plates is fixedly connected to the inner wall of the machine head. The diameter of the positioning ring is equal to the outer diameter of the spiral steel wire.

[0011] As a preferred embodiment of the present invention, both the primary feeder (2) and the secondary feeder (3) are screw feeders.

[0012] A method for preparing steel wire silicone tubing using the aforementioned apparatus, characterized by comprising the following steps:

[0013] Step 1: Wind the steel wire into a spiral shape using a wire winding machine, and then feed the spiral steel wire into the machine head; Step 2: Use a primary feeder to send the raw material to a secondary feeder;

[0014] Step 3: The secondary feeder feeds the raw materials a second time, making the feeding pressure greater and more uniform;

[0015] Step 4: Inside the machine head, the steel wire is shaped by the internal steel wire shaping device, and the raw material is combined with the steel wire at the same time.

[0016] Step 5: Place the combined pipe into an oven for vulcanization treatment to obtain steel wire silicone pipe.

[0017] As a preferred technical solution of the present invention, the inner and outer layers of the steel wire silicone tube are made of platinum vulcanized silicone rubber, the middle layer is a spiral galvanized steel wire, and the inner platinum silicone rubber and the outer platinum silicone rubber are vulcanized as a whole.

[0018] The beneficial effects of this invention are as follows: By optimizing traditional processing methods, this invention features secondary reinforcement feeding at the feeding end and a precision wire shaping device at the die head, ensuring consistent spacing between the steel wire and silicone rubber during bonding, thus guaranteeing stable product quality. The product has a three-layer structure: the inner and outer layers are platinum-cured silicone rubber, and the middle layer is a wrapped steel wire mesh or other metal wire. The inner and outer platinum-cured silicone rubber layers are integrally vulcanized. Compared to traditional processes, this method saves operational steps, avoids repeated processing and material waste, saves energy, and prevents secondary pollution, demonstrating promising application prospects. Attached Figure Description

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the shaping device of the present invention.

[0022] In the diagram: 1. Winding machine, 2. Primary feeder, 3. Secondary feeder, 4. Machine head, 5. Oven, 6. Shaping device, 61. Positioning ring, 62. Support plate. Detailed Implementation

[0023] Example 1

[0024] 1. Equipment preparation:

[0025] Select a wire winding machine, set the wire diameter to 1mm, adjust the winding machine parameters to make the winding speed 30r / min, and wind the wire into a spiral shape.

[0026] The primary feeder has a feed cylinder diameter of 50mm, a drive motor power of 3kW, and a feed screw pitch of 10mm. The secondary feeder has a booster cylinder diameter of 40mm, a booster motor power of 5kW, and a booster screw pitch of 8mm.

[0027] The diameter of the positioning ring inside the machine head is equal to the outer diameter of the spiral steel wire. To ensure a tight fit, the diameter of the positioning ring is set to precisely match the outer diameter of the spiral steel wire. For example, when the outer diameter of the spiral steel wire is 10mm, the diameter of the positioning ring is 10mm. Three support plates are evenly distributed on the side of the positioning ring and are fixedly connected to the inner wall of the machine head. The heating chamber of the oven is 5m long, and the conveyor belt speed is adjustable and set to 0.5m / min.

[0028] 2. Raw material preparation:

[0029] Prepare platinum vulcanized silicone rubber raw materials for the inner and outer layers, and steel wire mesh for the middle layer.

[0030] 3. Preparation process:

[0031] Start the primary feeder to send the platinum vulcanized silicone rubber raw material to the secondary feeder, with the feeding speed controlled at 10 kg / h.

[0032] The secondary feeder is started to feed the raw materials a second time, increasing the feeding pressure to 1.5MPa and making the feeding more uniform.

[0033] Spiral steel wire enters the machine head and is shaped by a shaping device consisting of a positioning ring and a support plate. At the same time, the material fed by the secondary feeder combines with the steel wire inside the machine head.

[0034] The combined pipes are fed into the oven at a speed of 0.5 m / min, the oven temperature is set to 180℃, and vulcanization is carried out for 20 minutes to obtain steel wire silicone pipes with a diameter of 20 mm.

[0035] 4. Product testing and material saving comparison:

[0036] Visual inspection: The surface is smooth and free of defects such as bubbles and cracks.

[0037] Pressure test: Under a pressure of 0.8 MPa, the pipe showed no leakage or deformation.

[0038] Material savings: In traditional processes, the raw material waste rate for producing pipes of the same diameter is about 8%. In this embodiment, by precisely controlling the feeding and shaping, the raw material waste rate is only 3%, saving 5 kg of raw materials for every 100 kg of product produced.

[0039] Example 2

[0040] 1. Equipment preparation:

[0041] The wire winding machine was adjusted to have a wire diameter of 0.8 mm and the winding speed was increased to 40 r / min.

[0042] The diameter of the primary feeder's feed cylinder was changed to 40mm, the drive motor power was 2.5kW, and the feed screw pitch was 8mm. The diameter of the secondary feeder's booster cylinder was 35mm, the booster motor power was 4kW, and the booster screw pitch was 7mm.

[0043] The positioning ring of the machine head is adjusted according to the outer diameter of the spiral steel wire. For example, when the outer diameter of the spiral steel wire is 8mm, the diameter of the positioning ring is set to 8mm to ensure a tight fit with the spiral steel wire.

[0044] The length of the oven heating cavity was adjusted to 6m, and the conveyor belt speed was set to 0.6m / min.

[0045] 2. Raw material preparation:

[0046] Prepare different batches of platinum vulcanized silicone rubber raw materials and another specification of steel wire mesh.

[0047] 3. Preparation process:

[0048] The primary feeder delivers raw materials to the secondary feeder at a speed of 8 kg / h.

[0049] The secondary feeder increases the feeding pressure to 1.8 MPa.

[0050] After being shaped by a shaping device inside the machine head, the steel wire is combined with the material, and the combined tube enters the oven. The oven temperature is set to 190℃, and the vulcanization time is 18 minutes, resulting in a steel wire silicone tube with a diameter of 15mm.

[0051] 4. Product testing and material saving comparison:

[0052] Appearance inspection: No obvious defects.

[0053] Pressure test: Under a pressure of 1.0 MPa, the pipe performance was stable and there were no abnormalities.

[0054] Material savings: The waste rate of raw materials in the production of pipes of the same diameter using traditional processes is about 7%, while the waste rate in this embodiment is 2.5%. For every 100kg of product produced, 4.5kg of raw materials are saved.

[0055] Example 3

[0056] 1. Equipment preparation:

[0057] The wire winding machine uses steel wire with a diameter of 1.2mm and a winding speed of 25r / min.

[0058] The primary feeder has a 60mm diameter feed cylinder, a 3.5kW drive motor, and a 12mm screw pitch. The secondary feeder has a 45mm diameter booster cylinder, a 6kW booster motor, and a 9mm screw pitch.

[0059] The positioning ring of the machine head is adapted to the outer diameter of the spiral steel wire. For example, if the outer diameter of the spiral steel wire is 12mm, the diameter of the positioning ring is 12mm.

[0060] The oven heating chamber is 4m long and the conveyor belt speed is 0.4m / min.

[0061] 2. Raw material preparation:

[0062] Prepare platinum vulcanized silicone rubber raw materials and special alloy steel wire with improved formulation.

[0063] 3. Preparation process:

[0064] The feeding speed of the primary feeder is 12kg / h.

[0065] The secondary feeder increases the feeding pressure to 1.6 MPa.

[0066] After the tube is formed in the die head, it enters the oven at 170℃ for 22 minutes to obtain a steel wire silicone tube with a diameter of 25mm.

[0067] 4. Product testing and material saving comparison:

[0068] Appearance inspection: Good appearance.

[0069] Pressure and bending tests: No leakage under 0.6 MPa pressure, and no cracks after 100 bends. Material savings: Traditional processes waste approximately 9% of raw materials when producing pipes of the same diameter; in this embodiment, the waste rate is 3.5%, saving 5.5 kg of raw materials for every 100 kg of product produced.

[0070] Based on the experimental data from the above embodiments, the advantages of this invention are significant. Regarding material savings, traditional processes result in a 7%-9% waste rate of raw materials when producing pipes of different diameters. In contrast, this invention, through precise control of feeding and shaping, reduces the waste rate to only 2.5%-3.5%, saving 4.5-5.5 kg of raw materials per 100 kg of product produced, significantly reducing material loss. In terms of product quality, the manufactured pipes exhibit a smooth, defect-free surface, show no leakage or deformation under pressures of 0.6 MPa-1.0 MPa, and perform well in bending tests, demonstrating stable and reliable quality. Furthermore, this invention enables continuous production, overcoming the length limitations of traditional vulcanizing tank production. The integrated vulcanizing process saves operational steps, reduces energy consumption and secondary pollution, and possesses excellent practicality and economic efficiency.

[0071] Components not described in detail in this article are existing technologies.

[0072] While the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and modifications or variations without creative effort are still within the protection scope of the present invention.

Claims

1. An apparatus for preparing steel wire silicone tubing, characterized in that, Including a wire winding machine (1): used to wind steel wire into a spiral shape; Primary feeder (2): Used to feed raw materials to the secondary feeder; Secondary feeder (3): Connected to primary feeder (2), used to receive raw materials from primary feeder (2) and increase feeding pressure and make feeding more uniform; Machine head (4): Connected to the secondary feeder (3), it receives the material fed by the secondary feeder (3). It is equipped with a wire shaping device (6) inside, which is used to shape the wire and combine it with the material. Oven (5): Connected to the machine head (4), used to receive the compound output from the machine head (4) and vulcanize the product.

2. The apparatus for preparing steel wire silicone tubing according to claim 1, characterized in that: The shaping device (6) includes a positioning ring (61) and a support plate (62). The side of the positioning ring (61) is fixedly connected to one end of the three support plates (62), and the other end of the three support plates (62) is fixedly connected to the inner wall of the machine head (4). The diameter of the positioning ring (61) is equal to the outer diameter of the spiral steel wire.

3. The apparatus for preparing steel wire silicone tubing according to claim 1, characterized in that: Both the primary feeder (2) and the secondary feeder (3) are screw feeders.

4. A method for preparing steel wire silicone tubing using the apparatus for preparing steel wire silicone tubing as described in claim 1, characterized in that, Includes the following steps: Step 1: The steel wire is wound into a spiral shape by the wire winding machine (1) and the spiral steel wire is put into the machine head (4); Step 2: Use the primary feeder (2) to feed the raw materials to the secondary feeder (3); Step 3: The secondary feeder (3) feeds the raw materials a second time, making the feeding pressure greater and more uniform; Step 4: Inside the machine head (4), the steel wire is shaped by the internal steel wire shaping device (6), and the raw material is combined with the steel wire at the same time; Step 5: The combined pipe is sent into an oven (5) for vulcanization treatment to obtain steel wire silicone pipe.

5. The manufacturing process of a steel wire silicone tubing according to claim 4, characterized in that: The inner and outer layers of the steel wire silicone tube are made of platinum vulcanized silicone rubber, and the middle layer is a spiral galvanized steel wire. The inner and outer platinum silicone rubber layers are vulcanized as a single unit.

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