An integral molding device for double-walled plastic pipe fittings

Abstract

This utility model discloses an integrated molding device for double-walled plastic pipe fittings, including a cylindrical cover. Two shaping rollers are vertically mounted at both ends of a corrugated pipe within the cylindrical cover, clamping the corrugated pipe in the middle. The shaping rollers have a rotary structure, larger at both ends and smaller in the middle, along their axial direction. The shaping roller on the left side of the corrugated pipe is rotatably mounted on a left-side vertical support, and the shaping roller on the right side is rotatably mounted on a right-side vertical support. The tops of the left-side vertical supports at both ends are respectively equipped with a first active synchronous wheel and a first passive synchronous wheel fixed to the rotating shaft of the shaping rollers. The tops of the right-side vertical supports at both ends are respectively equipped with a second active synchronous wheel and a second passive synchronous wheel fixed to the rotating shaft of the shaping rollers. This utility model can drive the corrugated pipe forward using the shaping rollers, preventing deformation due to the pipe's own weight and ensuring that the shape and roundness of the corrugated pipe meet the standards after cooling and shaping.

Description

Technical Field

[0001] This utility model relates to an integral molding device for double-walled plastic pipe fittings, belonging to the field of integral molding technology for plastic pipe fittings. Background Technology

[0002] The production process of double-wall corrugated pipe is as follows: the material is extruded from the extruder in a molten rod shape to the extrusion die. The extrusion die turns the rod-shaped material into a ring and squeezes it into the forming module. The material is formed under the constraint of the forming module (the outer wall is tightly attached to the outer wall of the forming module by vacuuming). The formed double-wall corrugated pipe is continued to be conveyed forward, through the cooling water tank, and then to the cutting machine. The cutting machine cuts the corrugated pipe into a shape that meets the technical requirements according to the production needs.

[0003] In the actual forming process of corrugated pipes, the temperature of the corrugated pipes is still relatively high after forming in the forming equipment, and they are not truly fully shaped. In particular, for double-walled corrugated pipes with larger diameters, due to their own weight, the corrugated pipes coming out of the forming machine have unqualified roundness after cooling due to their own weight and the load-bearing capacity of the transmission equipment, thus resulting in unqualified quality of the corrugated pipes after forming.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides an integrated molding device for double-walled plastic pipe fittings. The device can drive the corrugated pipe forward by a shaping roller, preventing deformation due to the weight of the corrugated pipe and ensuring that the shape and roundness of the corrugated pipe meet the standards after cooling and shaping.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] An integral molding device for double-walled plastic pipe fittings includes a cylindrical cover. A corrugated pipe from the molding machine passes through the cylindrical cover. Two shaping rollers are vertically arranged at the front and rear ends of the corrugated pipe inside the cylindrical cover, and the two shaping rollers clamp the corrugated pipe in the middle.

[0008] The shaping roller has a rotary structure that is large at both ends and small in the middle along the axial direction;

[0009] The shaping roller on the left side of the corrugated pipe is rotatably mounted on the left vertical support, and the shaping roller on the right side of the corrugated pipe is rotatably mounted on the right vertical support.

[0010] The top of the left vertical roller support at both the front and rear ends is respectively provided with a first active synchronous pulley and a first passive synchronous pulley fixed to the shaft of the shaping roller, and the two are driven by a synchronous belt; the top of the right vertical roller support at both the front and rear ends is respectively provided with a second active synchronous pulley and a second passive synchronous pulley fixed to the shaft of the shaping roller, and the two are driven by a synchronous belt.

[0011] Furthermore, the circumference of the shaping roller is provided with a plurality of raised ribs along the axial direction, and the spacing and shape of the ribs are adapted to the trough between the two peaks of the corrugated pipe outer wall.

[0012] Furthermore, the first active synchronizing pulley, the first passive synchronizing pulley, the second active synchronizing pulley, and the second passive synchronizing pulley are driven by a drive system; the drive system includes a passive gear fixedly connected to the first active synchronizing pulley on the same axis, and an active gear meshing with the passive gear for transmission;

[0013] The drive system also includes an active drive synchronous pulley and a passive drive synchronous pulley. The active drive synchronous pulley is coaxially and fixedly connected to the active gear, and the passive drive synchronous pulley is coaxially and fixedly connected to the second active synchronous pulley. The active drive synchronous pulley is driven by a drive motor.

[0014] Furthermore, the lower and upper ends of the right and left vertical support rods are fixed to the inner wall of the cylindrical cover by lower and upper supports, respectively.

[0015] Furthermore, multiple idler rollers are provided at the bottom of the corrugated pipe, and the idler rollers are rotatably mounted on the idler roller bracket.

[0016] Furthermore, a cooling water pipe is provided axially at the top of the cylindrical cover, and multiple nozzles are provided on the cooling water pipe.

[0017] Furthermore, baffles are provided at the top and bottom of both ends of the cylindrical cover;

[0018] The bottom of the cylindrical cover is equipped with a drain pipe, the top of the cylindrical cover is equipped with an air intake pipe, and the bottom of the cylindrical cover is equipped with a water tank.

[0019] Furthermore, it also includes a support frame, to which the cylindrical cover is fixed by a hanger.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] Two shaping rollers sandwich the corrugated pipe in the middle. The shape of the shaping rollers is adapted to the shape of the corrugated pipe. During the transmission process, the shaping rollers drive the corrugated pipe forward. The shaping rollers support the corrugated pipe from both sides to prevent it from deforming due to its own weight. The support rollers at the lower end of the corrugated pipe play a supporting role, ultimately ensuring that the shape and roundness of the corrugated pipe are standard after cooling and shaping.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 yes Figure 1 Sectional view at point AA along the middle;

[0025] Figure 3 This is an internal side view of the cylindrical protective cover;

[0026] Figure 4 This is a top view of the inside of the cylindrical protective cover;

[0027] Figure 5 This is a schematic diagram of the structure of the shaping roller in this utility model.

[0028] In the diagram, 1-forming machine, 2-cylindrical cover, 3-corrugated pipe, 4-right vertical roller support, 5-forming roller, 6-lower support, 7-upper support, 8-left vertical roller support, 9-passive gear, 10-driving gear, 11-first driving synchronous pulley, 12-first passive synchronous pulley, 13-driving transmission synchronous pulley, 14-passive transmission synchronous pulley, 15-second driving synchronous pulley, 16-second passive synchronous pulley, 17-roller bracket, 18-roller, 19-drive motor, 20-drainage pipe, 21-suction pipe, 22-water tank, 23-support frame, 24-cooling water pipe, 25-nozzle, 26-baffle. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0030] like Figure 1-5 As shown, this utility model provides an integral molding device for double-walled plastic pipe fittings, including a cylindrical cover 2. A corrugated pipe 3 from the molding machine passes through the cylindrical cover 2. Two shaping rollers 5 are vertically arranged at the front and rear ends of the corrugated pipe 3 inside the cylindrical cover 2, and the two shaping rollers 5 clamp the corrugated pipe 3 in the middle.

[0031] The shaping roller 5 has a rotary structure with large ends and small middle along the axial direction; the circumference of the shaping roller 5 is provided with multiple raised ribs along the axial direction, and the spacing and shape of the ribs are adapted to the trough between the two peaks of the outer wall of the corrugated pipe 3.

[0032] like Figure 2 As shown, the shaping roller 5 on the left side of the corrugated pipe 3 is rotatably mounted on the left vertical support 8, and the shaping roller 5 on the right side of the corrugated pipe 3 is rotatably mounted on the right vertical support 4.

[0033] The top of the left vertical support 8 at both the front and rear ends is respectively provided with a first active synchronous pulley 11 and a first passive synchronous pulley 12 fixed to the rotating shaft of the shaping roller 5, and the two are driven by a synchronous belt; the top of the right vertical support 4 at both the front and rear ends is respectively provided with a second active synchronous pulley 15 and a second passive synchronous pulley 16 fixed to the rotating shaft of the shaping roller 5, and the two are driven by a synchronous belt. The first active synchronous pulley 11, the first passive synchronous pulley 12, the second active synchronous pulley 15 and the second passive synchronous pulley 16 are driven by a drive system, so that the first active synchronous pulley 11 and the first passive synchronous pulley 12 rotate in opposite directions, and the second active synchronous pulley 15 and the second passive synchronous pulley 16 rotate in opposite directions.

[0034] like Figure 2 The drive system includes a passive gear 9 that is fixedly connected to the first active synchronous pulley 11 on the same axis, and an active gear 10 that meshes with the passive gear 9 for transmission.

[0035] The drive system also includes an active drive synchronous pulley 13 and a passive drive synchronous pulley 14. The active drive synchronous pulley 13 is coaxially and fixedly connected to the active gear 10, and the passive drive synchronous pulley 14 is coaxially and fixedly connected to the second active synchronous pulley 15. The active drive synchronous pulley 13 is driven by a drive motor 19.

[0036] The lower and upper ends of the right vertical support 4 and the left vertical support 8 are fixed to the inner wall of the cylindrical cover 2 by the lower support 6 and the upper support 7, respectively.

[0037] Multiple idlers 18 are provided at the bottom of the corrugated pipe 3, and the idlers 18 are rotatably mounted on the idler bracket 17.

[0038] The top of the cylindrical cover 2 is provided with a cooling water pipe 24 along the axial direction, and the cooling water pipe 24 is provided with a plurality of nozzles 25.

[0039] The cylindrical cover 2 has baffles 26 at both ends, one above the other. The upper baffle 26 blocks water vapor, and the lower baffle 26 blocks water flow. A drain pipe 20 is located at the bottom of the cylindrical cover 2, an air intake pipe 21 is located at the top, and a water tank 22 is located directly below the cylindrical cover 2. Cooled water flows from the drain pipe 20 into the water tank 22. The air intake pipe 21 is connected to a blower to remove water vapor from inside the cylindrical cover 2.

[0040] This utility model also includes a support frame 23, and the cylindrical cover 2 is fixed to the support frame 23 by a hanger.

[0041] The specific working principle of this utility model:

[0042] The corrugated pipe 3 exiting the forming machine 1 passes through the cylindrical cover 2. Cooling water pipe 24 at the top of the cylindrical cover 2 sprays water to cool the corrugated pipe 3. The cylindrical cover 2 covers the water vapor generated during the cooling process to prevent it from overflowing. Two shaping rollers 5 sandwich the corrugated pipe 3 in the middle. The shape of the shaping rollers 5 is adapted to the shape of the corrugated pipe 3. During the transmission process, the shaping rollers 5 drive the corrugated pipe 3 forward. The shaping rollers 5 support the corrugated pipe 3 from both sides to prevent deformation due to the weight of the corrugated pipe 3. The support roller 18 at the lower end of the corrugated pipe 3 plays a supporting role, ultimately ensuring that the shape and roundness of the cooled and shaped corrugated pipe 3 are standard.

[0043] The drive system drives the passive gear 9 and the active gear 10, which mesh with each other, so that the first active synchronous pulley 11 and the second active synchronous pulley 15 rotate in opposite directions. This ensures that the two opposing shaping rollers 5 rotate in opposite directions. The transmission is carried out through the synchronous belt, which ensures the transmission accuracy and ensures that the spacing and shape of the ribs are compatible with the trough between the two peaks on the outer wall of the corrugated pipe 3.

[0044] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An integral molding device for double-walled plastic pipe fittings, characterized in that: Including a cylindrical cover (2), a corrugated pipe (3) coming out of the forming machine passes through the cylindrical cover (2). The corrugated pipe (3) has two shaping rollers (5) vertically installed at the front and rear ends inside the cylindrical cover (2), and the two shaping rollers (5) sandwich the corrugated pipe (3) in the middle. The shaping roller (5) has a rotary structure with large ends and small middle along the axial direction; The shaping roller (5) on the left side of the corrugated pipe (3) is rotatably mounted on the left vertical support (8), and the shaping roller (5) on the right side of the corrugated pipe (3) is rotatably mounted on the right vertical support (4). The top of the left vertical support (8) at the front and rear ends is provided with a first active synchronous wheel (11) and a first passive synchronous wheel (12) fixed to the rotating shaft of the shaping roller (5), and the two are driven by a synchronous belt; the top of the right vertical support (4) at the front and rear ends is provided with a second active synchronous wheel (15) and a second passive synchronous wheel (16) fixed to the rotating shaft of the shaping roller (5), and the two are driven by a synchronous belt.

2. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: The shaping roller (5) has multiple raised ribs along its axial direction on its periphery. The spacing and shape of the ribs are adapted to the trough between the two peaks of the outer wall of the corrugated pipe (3).

3. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: The first active synchronous pulley (11), the first passive synchronous pulley (12), the second active synchronous pulley (15), and the second passive synchronous pulley (16) are driven by a drive system; the drive system includes a passive gear (9) that is coaxially and fixedly connected to the first active synchronous pulley (11), and an active gear (10) that meshes with the passive gear (9); The drive system also includes an active drive synchronous pulley (13) and a passive drive synchronous pulley (14). The active drive synchronous pulley (13) is coaxially and fixedly connected to the active gear (10), and the passive drive synchronous pulley (14) is coaxially and fixedly connected to the second active synchronous pulley (15). The active drive synchronous pulley (13) is driven by a drive motor (19).

4. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: The lower and upper ends of the right vertical support (4) and the left vertical support (8) are fixed to the inner wall of the cylindrical cover (2) by the lower support (6) and the upper support (7), respectively.

5. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: Multiple idlers (18) are provided at the bottom of the corrugated pipe (3), and the idlers (18) are rotatably mounted on the idler bracket (17).

6. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: The top of the cylindrical cover (2) is provided with a cooling water pipe (24) along the axial direction, and the cooling water pipe (24) is provided with multiple nozzles (25).

7. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: The cylindrical cover (2) is equipped with baffles (26) at both the upper and lower ends; The bottom of the cylindrical cover (2) is provided with a drain pipe (20), the top of the cylindrical cover (2) is provided with an air suction pipe (21), and the bottom of the cylindrical cover (2) is provided with a water tank (22).

8. The integral molding device for double-walled plastic pipe fittings as described in claim 1, characterized in that: It also includes a support frame (23), and the cylindrical cover (2) is fixed to the support frame (23) by a hanger.

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