Pre-insulated tube foaming fixture

Abstract

The utility model discloses a kind of pre-insulated tube foaming fixture tool, including the placement component for pre-insulated tube support, the side fixed connection of placement component is used for the abutting plate for pre-insulated tube leaning, the top of placement component movably provided with the clamping plate for pre-insulated tube position clamping, the position of another side of placement component and corresponding clamping plate is equipped with the adjusting assembly for clamping plate adjustment, placement component includes the placement plate for pre-insulated tube support placement, the side of placement plate is provided with connecting bolt one, the side of abutting plate is provided with the screw groove one matched with connecting bolt one.The utility model drives clamping plate horizontal movement by rotating adjusting bolt, accurately adjusts the distance between abutting plate and clamping plate, effectively solve the waste and foaming layer uneven problem produced when pre-insulated tube foaming due to ovality, guarantee its roundness, improve product quality;Different size pre-insulated tube can be adapted, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of insulating tube foaming fixture technology, and in particular to a pre-insulated tube foaming fixture. Background Technology

[0002] In the manufacturing process of pre-insulated pipes, the polyurethane foaming process plays a crucial role, as its foaming quality directly determines the final performance of the pre-insulated pipe. The outer pipe of the pre-insulated pipe is usually made of HDPE pipe, which is high-density polyethylene pipe. Due to its excellent physical and chemical properties, such as corrosion resistance, wear resistance, and impact resistance, it is widely used in the pipeline industry.

[0003] However, a pressing problem exists in the manufacturing process of HDPE pipes. Due to the inherent characteristics of HDPE pipes, when the circular surface is in its natural state and subjected to its own weight, it is extremely prone to deformation, gradually changing from a regular circle to an ellipse. This deformation has several negative impacts on the production of pre-insulated pipes. First, the uniformity of the foam layer thickness is severely compromised. As a key factor in the insulation performance of pre-insulated pipes, uneven foam layer thickness leads to significant differences in the insulation performance of the finished pre-insulated pipes, making it impossible to guarantee the consistency of the overall insulation effect. Second, the deformation of the roundness of the pre-insulated pipe not only affects the appearance quality of the product but also causes many inconveniences in subsequent installation and use. During installation on ships, non-round pre-insulated pipes are difficult to precisely align with matching components, increasing installation difficulty and time costs, and may even cause safety hazards due to improper installation. Moreover, during subsequent use, the deformation of the roundness may also lead to uneven stress on the pipe, accelerating pipe aging and reducing its service life.

[0004] To effectively address the challenge of circular surface deformation in HDPE pipes and ensure the manufacturing quality of pre-insulated pipes, the industry urgently needs a tool that can guarantee the major and minor axes of the circular surface of the HDPE pipe remain equal during the foaming process. The emergence of pre-insulated pipe foaming fixtures provides a feasible solution to this problem. Through reasonable structural design, they aim to achieve uniform distribution of the foam layer, improve the finished quality of pre-insulated pipes, and thus enhance their core competitiveness in the market. However, existing technologies still have some shortcomings, preventing them from fully meeting production needs. Therefore, further improvement and innovation of pre-insulated pipe foaming fixtures are necessary. Utility Model Content

[0005] The purpose of this utility model is to provide a pre-insulated tube foaming fixture. By rotating the adjusting bolt, the clamping plate is moved horizontally, and the distance between the abutment plate and the clamping plate is precisely adjusted. This effectively solves the problems of defective products and uneven foaming layers caused by ellipticity during pre-insulated tube foaming, ensuring its roundness and improving product quality. It can be adapted to pre-insulated tubes of different sizes, reducing production costs.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A pre-insulated tube foaming fixture includes:

[0008] A placement assembly for supporting a pre-insulated tube has a fixed abutment plate on one side for the pre-insulated tube to lean against, a clamping plate for limiting and holding the pre-insulated tube is movably disposed on the top of the placement assembly, and an adjustment assembly for adjusting the clamping plate is installed on the other side of the placement assembly corresponding to the position of the clamping plate.

[0009] The aforementioned pre-insulated tube foaming fixture includes a placement assembly comprising a placement plate for supporting and placing the pre-insulated tube.

[0010] The aforementioned pre-insulated tube foaming fixture includes a connecting bolt on one side of the placement plate and a threaded groove matching the connecting bolt on the side of the abutment plate.

[0011] In the aforementioned pre-insulated tube foaming fixture, the side of the abutment plate is fixedly connected to one side of the placement plate via the threaded groove.

[0012] In the aforementioned pre-insulated tube foaming fixture, two symmetrically arranged guide sliders are fixedly connected to the bottom of the clamping plate, and a guide groove matching the guide slider is provided on the placement plate at the position corresponding to the guide slider.

[0013] The aforementioned pre-insulated tube foaming fixture includes an adjustment component comprising a fixed base, a mounting base fixedly connected to the fixed base, a threaded base fixedly connected to the mounting base, and an adjustment bolt for adjusting the movement of the clamping plate threadedly connected to the threaded base. The end of the adjustment bolt is rotatably connected to the side of the clamping plate via a connecting bearing.

[0014] The aforementioned pre-insulated tube foaming fixture includes a second connecting bolt on the other side of the placement plate, and a second threaded groove matching the second connecting bolt on the side of the fixing seat, with the side of the fixing seat fixedly connected to the other side of the placement plate via the second threaded groove.

[0015] In the aforementioned pre-insulated tube foaming fixture, a rotating handwheel for rotating the adjusting bolt is fixedly connected to the end of the adjusting bolt away from the connecting bearing.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. This utility model realizes a pre-insulated tube foaming fixture. By rotating the adjusting bolt, the clamping plate is moved horizontally, and the distance between the abutment plate and the clamping plate is precisely adjusted. This effectively solves the problems of waste products and uneven foaming layer caused by ellipticity during pre-insulated tube foaming, ensures its roundness, and improves product quality. It can be adapted to pre-insulated tubes of different sizes and reduces production costs.

[0018] 2. Ensuring the roundness of pre-insulated tubes and improving product quality: This utility model's pre-insulated tube foaming fixture places the pre-insulated tube on a placement plate during production, with one side of the tube abutting against a support plate on the side of the placement plate. By rotating the adjusting bolt, the threaded seat causes the clamping plate at the end of the adjusting bolt to move horizontally, thus precisely adjusting the distance between the support plate and the clamping plate, providing convenient and effective positioning of the pre-insulated tube. This design cleverly solves the problems of defective products and uneven foaming layers caused by ellipticity issues during pre-insulated tube foaming, ensuring that the pre-insulated tube maintains a regular circle throughout the foaming process, greatly improving the roundness accuracy of the product, and thus enhancing the overall quality of the pre-insulated tube.

[0019] 3. Wide applicability and reduced production costs: This fixture boasts excellent versatility. By simply adjusting the distance between the abutment plate and the clamping plate, it can easily adapt to the limiting requirements of pre-insulated tubes of different sizes. This feature eliminates the need for companies to equip themselves with multiple specialized fixtures for different specifications of pre-insulated tubes during production, reducing equipment investment and inventory costs. Simultaneously, it improves the utilization rate of production equipment, shortens production preparation time, and helps companies achieve large-scale, standardized production, further reducing production costs and improving production efficiency. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the pre-insulated tube foaming fixture of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the pre-insulated tube foaming fixture tooling of this utility model, showing the placement of the components.

[0023] Figure 3 This is a schematic diagram of the abutment plate in the pre-insulated tube foaming fixture of this utility model;

[0024] Figure 4 This is a schematic diagram of the clamping plate in the pre-insulated tube foaming fixture of this utility model;

[0025] Figure 5 This is a schematic diagram of the adjustment component in the pre-insulated tube foaming fixture of this utility model;

[0026] Figure 6 This is a schematic diagram of the adjustment component in the pre-insulated tube foaming fixture of this utility model from another perspective.

[0027] Explanation of icon numbers:

[0028] 1. Placement component; 2. Backing plate; 3. Clamping plate; 4. Adjustment component;

[0029] 101. Placement plate; 1011. Connecting bolt (one); 1012. Threaded groove (one);

[0030] 102. Two connecting bolts; 1021. Two threaded grooves;

[0031] 301, guide slider; 3011, guide groove;

[0032] 401. Fixed base; 402. Mounting base; 403. Threaded base; 404. Adjusting bolt;

[0033] 4041. Connecting bearing; 4042. Rotating handwheel. Detailed Implementation

[0034] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] Please refer to Figures 1 to 6 As shown, an embodiment of the present invention provides a pre-insulated tube foaming fixture, comprising: a placement component 1 for supporting the pre-insulated tube; a support plate 2 for the pre-insulated tube to rest against is fixedly connected to one side of the placement component 1; a clamping plate 3 for limiting and clamping the pre-insulated tube is movably disposed on the top of the placement component 1; and an adjustment component 4 for adjusting the clamping plate 3 is installed on the other side of the placement component 1 at a position corresponding to the clamping plate 3.

[0036] By adopting the above technical solution, the clamping plate 3 is moved horizontally by rotating the adjusting bolt 404, and the distance between the abutment plate 2 and the clamping plate 3 is precisely adjusted. This effectively solves the problems of defective products and uneven foaming layers caused by ovality during the foaming of pre-insulated tubes, ensuring their roundness and improving product quality. It can also be adapted to pre-insulated tubes of different sizes, reducing production costs.

[0037] To achieve a stable connection between the abutment plate 2 and the placement plate 101, in this embodiment: the placement assembly 1 includes a placement plate 101 for supporting the placement of the pre-insulated tube. A connecting bolt 1011 is provided on one side of the placement plate 101. Meanwhile, a threaded groove 1012 adapted to the connecting bolt 1011 is provided on the side of the abutment plate 2. The side of the abutment plate 2 is firmly fixed to the side of the placement plate 101 by means of the threaded groove 1012. This connection method is simple and reliable. Through the cooperation of the connecting bolt 1011 and the threaded groove 1012, it can be ensured that the connection between the abutment plate 2 and the placement plate 101 is tight. During the placement and processing of the pre-insulated tube, the abutment plate 2 will not easily shift, providing a stable abutment reference for the pre-insulated tube and ensuring the limiting effect.

[0038] To ensure the stability of the clamping plate 3 during movement, in this embodiment, two symmetrically distributed guide sliders 301 are fixedly connected to the bottom of the clamping plate 3. A guide groove 3011 matching the guide slider 301 is provided on the placement plate 101 at the position corresponding to the guide slider 301. The matching design of the guide slider 301 and the guide groove 3011 ensures that when the clamping plate 3 moves under the drive of the adjusting bolt 404, it can only move in a straight line along the direction of the guide groove 3011. This effectively avoids the clamping plate 3 from deviating or shaking during movement, improves the accuracy and stability of the movement of the clamping plate 3, and thus better achieves the limiting of the pre-insulated tube.

[0039] To achieve effective adjustment of the clamping plate 3 by the adjusting bolt 404, in this embodiment: the adjusting assembly 4 includes a fixed base 401, a mounting base 402 fixedly connected to the fixed base 401, and a threaded seat 403 fixedly connected to the mounting base 402. The threaded seat 403 is threadedly connected to the adjusting bolt 404 for adjusting the movement of the clamping plate 3. The end of the adjusting bolt 404 is rotatably connected to the side of the clamping plate 3 via a connecting bearing 4041. Through the threaded connection between the threaded seat 403 and the adjusting bolt 404, axial movement of the adjusting bolt 404 relative to the threaded seat 403 can be achieved when the adjusting bolt 404 is rotated. The connecting bearing 4041 ensures that the adjusting bolt 404 does not cause the clamping plate 3 to rotate during rotation, but rather converts the rotational motion into horizontal linear motion of the clamping plate 3. This allows for precise adjustment of the distance between the clamping plate 3 and the abutment plate 2, meeting the limiting requirements of pre-insulated tubes of different sizes.

[0040] To ensure reliable fixing of the fixed base 401 and the placement plate 101, in this embodiment: a connecting bolt 2 102 is provided on the other side of the placement plate 101, and a threaded groove 2 1021 matching the connecting bolt 2 102 is provided on the side of the fixed base 401. The side of the fixed base 401 is firmly fixed to the other side of the placement plate 101 through the threaded groove 2 1021. This fixing method is similar to the connection method between the abutment plate 2 and the placement plate 101. Through the cooperation of the connecting bolt 2 102 and the threaded groove 2 1021, it can be ensured that the connection between the fixed base 401 and the placement plate 101 is firm. During the rotation of the adjusting bolt 404 and the movement of the clamping plate 3, the fixed base 401 will not loosen, providing stable support for the entire adjusting assembly 4 and ensuring the normal operation of the equipment.

[0041] To facilitate the operator's rotation of the adjusting bolt 404, in this embodiment, a rotating handwheel 4042 is fixedly connected to the end of the adjusting bolt 404 away from the connecting bearing 4041. The rotating handwheel 4042 greatly facilitates the operator's rotation of the adjusting bolt 404. Compared to directly rotating the adjusting bolt 404 by hand, using the rotating handwheel 4042 allows for the application of greater torque, making operation easier and less strenuous. Especially when adjusting the limit of pre-insulated tubes of different sizes, it enables quick and accurate adjustment, improving work efficiency.

[0042] The working principle of this utility model is as follows:

[0043] First, the pre-insulated tube is placed stably on the placement plate 101, ensuring that one side of the pre-insulated tube is tightly abutted against the abutment plate 2 on the side of the placement plate 101, thus providing a stable initial position for the pre-insulated tube. Then, the operator rotates the rotating handwheel 4042 on the adjusting bolt 404. Under the action of the internal thread of the threaded seat 403, the adjusting bolt 404 will move axially. Since the end of the adjusting bolt 404 is rotatably connected to the clamping plate 3 via the connecting bearing 4041, the movement of the adjusting bolt 404 will drive the clamping plate 3 to move horizontally along the direction of the guide groove 3011. In this way, the distance between the abutment plate 2 and the clamping plate 3 can be flexibly adjusted, thereby conveniently and accurately limiting the position of the pre-insulated tube. This design effectively solves the problem that during the foaming process, the pre-insulated tube's circular surface deforms into an ellipse under its own weight, leading to uneven foam layer thickness and the generation of defective products. It ensures the roundness of the pre-insulated tube and improves product quality. Meanwhile, because the distance between the abutment plate 2 and the clamping plate 3 can be flexibly adjusted, this fixture can be used to limit the pre-insulated tubes of different sizes, and has a wide range of applicability.

[0044] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A pre-insulated tube foaming fixture, comprising a placement assembly (1) for supporting the pre-insulated tube, characterized in that, A support plate (2) for the pre-insulating tube to rest against is fixedly connected to one side of the placement component (1), and a clamping plate (3) for limiting and clamping the pre-insulating tube is movably provided on the top of the placement component (1). An adjustment component (4) for adjusting the clamping plate (3) is installed on the other side of the placement component (1) at a position corresponding to the clamping plate (3).

2. The pre-insulated tube foaming fixture according to claim 1, characterized in that: The placement assembly (1) includes a placement plate (101) for supporting the placement of the pre-insulated tube.

3. The pre-insulated tube foaming fixture according to claim 2, characterized in that: A connecting bolt (1011) is provided on one side of the placement plate (101), and a threaded groove (1012) matching the connecting bolt (1011) is provided on the side of the abutment plate (2).

4. The pre-insulated tube foaming fixture according to claim 3, characterized in that: The side of the abutment plate (2) is fixedly connected to one side of the placement plate (101) through the threaded groove (1012).

5. The pre-insulated tube foaming fixture according to claim 4, characterized in that: The bottom of the clamping plate (3) is fixedly connected to two symmetrically arranged guide sliders (301), and the placement plate (101) is provided with a guide groove (3011) that matches the guide slider (301) at the position corresponding to the guide slider (301).

6. The pre-insulated tube foaming fixture according to claim 5, characterized in that: The adjustment assembly (4) includes a fixed base (401), a mounting base (402) is fixedly connected to the fixed base (401), a threaded seat (403) is fixedly connected to the mounting base (402), and an adjusting bolt (404) for adjusting the movement of the clamping plate (3) is threadedly connected to the threaded seat (403), and the end of the adjusting bolt (404) is rotatably connected to the side of the clamping plate (3) through a connecting bearing (4041).

7. The pre-insulated tube foaming fixture according to claim 6, characterized in that: A connecting bolt (102) is provided on the other side of the placement plate (101), and a threaded groove (1021) matching the connecting bolt (102) is provided on the side of the fixing seat (401), and the side of the fixing seat (401) is fixedly connected to the other side of the placement plate (101) through the threaded groove (1021).

8. The pre-insulated tube foaming fixture according to claim 7, characterized in that: The end of the adjusting bolt (404) away from the connecting bearing (4041) is fixedly connected to a rotating handwheel (4042) for rotating the adjusting bolt (404).

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