Cooling forming device for producing double-layer corrugated pipe

Abstract

A cooling forming device for producing double-layer corrugated pipes is used for solving the problems that some cooling forming devices for producing the double-layer corrugated pipes mentioned in the background technology are prone to causing water supply hoses to be wound together, and finally the cooling devices cannot operate normally; the cooling is not uniform, the appearance and the size of the pipe are not well controlled, and the production speed is greatly limited. A cooling forming device for producing a double-layer corrugated pipe comprises two forming units, each forming unit comprises a mounting base, a sliding groove is formed in the top face of each mounting base, and a Haver sliding block is arranged in each sliding groove in a sliding mode; a motor is fixedly arranged at one end of the bottom of the cooling water tank, the output end of the motor is connected with a transmission shaft, and the bottom end of the transmission shaft is fixedly sleeved with a first gear; the other end of the bottom of the cooling water tank is rotatably provided with a rotating shaft, and the bottom end of the rotating shaft is fixedly sleeved with a second gear. A water return groove is formed below the mounting base, a water inlet pipeline is fixedly arranged on one side of each half sliding block, and a water drainage pipeline is fixedly arranged on one side of each half sliding block.

Description

Technical Field

[0001] The invention relates to the technical field of double-layer corrugated pipe processing, in particular to a cooling and forming device for producing double-layer corrugated pipes. Background Art

[0002] Double-wall corrugated pipes can be widely used in drainage pipes and fresh air pipes. The core technology for producing this pipe is its cooling and forming device. If the production speed and product yield of the pipe are improved, it mainly depends on whether the design of the forming and cooling device is reasonable.

[0003] In the prior art, water circuits are used to supply water to the cooling jackets, but the jackets are always in a circulating motion, and the number of cooling jackets is generally more than 40 groups. If each group of jackets is supplied with water by a separate cooling water circuit, it is easy to cause the water supply hoses to be entangled, and eventually the cooling device cannot operate normally;

[0004] And because 3 to 5 groups of cooling jackets are connected in series, the overall cooling efficiency will be reduced, and the temperatures of different cooling jackets in this group will be different. The temperature of the cooling jacket close to the water inlet will be lower, and the temperature of the cooling jacket at the end will be higher, which will eventually lead to uneven cooling, poor control of pipe appearance and size, and greatly limited production speed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cooling and forming device for producing double-layer corrugated pipes, which is used to solve the technical problems mentioned in the background technology that some cooling and forming devices for producing double-layer corrugated pipes easily cause water supply hoses to be entangled together, ultimately making the cooling device unable to operate normally; the cooling is uneven, the appearance and size of the pipes are poorly controlled, and the production speed is greatly limited.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A cooling and forming device for producing double-layer corrugated pipes, comprising two horizontally opposite forming units, each forming unit comprising an annular mounting seat, the mounting seat being composed of two horizontal sections and two curved sections, a slide groove being provided on the top surface of the mounting seat, and a plurality of Haver sliding blocks being slidably arranged in the slide groove;

[0008] A cooling water trough is provided above the mounting seat, a motor is fixedly provided at one end of the bottom of the cooling water trough, an output end of the motor is vertically downward and connected to a transmission shaft, a first gear is provided at the bottom fixed sleeve of the transmission shaft, and the first gear is provided in one of the curved sections of the mounting seat; a vertical rotating shaft is rotatably provided at the other end of the bottom of the cooling water trough, a second gear is provided at the bottom fixed sleeve of the rotating shaft, and the second gear is provided in another curved section of the mounting seat, the first gear and the second gear are both used to drive the Haval slider to slide in the slide groove, and along the moving direction of the Haval slider, the Haval slider located at the rear pushes the Haval slider located at the front to move;

[0009] Each of the Haver sliders comprises a working part, which is a semi-annular cavity. Two opposite Haver sliders located on two molding units are closed together to form an annular cavity, and the annular cavity is used to clamp and mold the plastic pipe and transport the plastic pipe;

[0010] A return water trough is provided under the mounting seat, and a water inlet pipe is fixedly penetrated on the side of each Haver slider facing the cooling water trough, and the water inlet pipe is communicated with the internal cavity of the working part, and the water inlet end of the water inlet pipe extends below the liquid surface in the cooling water trough; a drainage pipe is fixedly penetrated on the side of each Haver slider facing the return water trough, and the drainage pipe is communicated with the internal cavity of the working part, and the water outlet end of the drainage pipe is provided in the return water trough; each molding unit is also externally connected to a cooling circulation water pump, and the cooling circulation water pump is used to cool the water in the return water trough and return it to the cooling water trough.

[0011] Working principle:

[0012] When in use, the motors on the two molding units are started, and the first gear and the second gear on the two molding units are adjusted to run synchronously, so that the opening and closing of two opposite Haval sliders on the two molding units are completely aligned during operation. Specifically: the output end of each motor drives the corresponding transmission shaft to rotate, and the rotation of the transmission shaft drives the first gear to rotate, and the rotation of the first gear drives the Haval slider to slide in the slide groove. Along the moving direction of the Haval slider, the Haval slider at the rear pushes the Haval slider in the front to move, thereby driving the second gear to rotate, and the rotation of the second gear drives the Haval slider to slide toward the first gear, and then the Haval slider circulates and moves repeatedly in the slide groove; then, materials are fed into the two molding units, and the Haval sliders that form the annular cavity are closed to clamp and mold the plastic pipes and convey them;

[0013] The movement of each Haver slider drives the corresponding water inlet pipe and drainage pipe to move, and in this process, the cooling water in the cooling water tank enters each Haver slider through each water inlet pipe, and then flows from the corresponding drainage pipe to the return water tank;

[0014] At the same time, the cooling circulation water pump is started, and the cooling circulation water pump cools the water in the return water tank and returns it to the cooling water tank.

[0015] Beneficial effects:

[0016] 1. In this scheme, by providing a mounting seat, a cooling water tank provided above the mounting seat, a return water tank provided below the mounting seat, a Haval slider, a water inlet pipe, and a drainage pipe, the siphon principle is utilized to form a height difference by providing a water inlet pipe in the cooling water tank and a drainage pipe in the return water tank; under the two conditions that the water inlet end of the water inlet pipe extends below the liquid level in the cooling water tank, the water in the cooling water tank automatically enters each Haval slider through each water inlet pipe, and then flows from the corresponding drainage pipe to the return water tank, thereby achieving a sufficient flow rate of cooling water and improving the cooling effect on the Haval slider;

[0017] 2. The two molding units are placed horizontally opposite to each other, so that two opposite Haver sliders on the two molding units are closed left and right to form an annular cavity. The left and right opening and closing method can realize that water inlet pipes and drainage pipes can be set on both Haver sliders, so that the temperature on both sides of the annular cavity is consistent. Therefore, the cooling effect of the two Haver sliders is consistent during the production process, which improves the uniformity of cooling;

[0018] 3. By setting up several Haval sliders, and each Haval slider is penetrated by a water inlet pipe and a drainage pipe, and cooperating with the siphon principle, each Haval slider can be cooled by independent circulating water, so that each Haval slider is fully cooled, and the cooling and molding effect is better; at the same time, the water inlet pipe and the drainage pipe move with each Haval slider, and the water inlet pipes and drainage pipes of different Haval sliders will not cause any interference;

[0019] 4. The cooling water tank serves as an open water source for the cold water pipeline, and the cooling circulating water pump does not affect its water inlet during circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of a single molding unit;

[0022] Figure 3 for Figure 2 Assembly diagram of the Haval slider, rack and sliding cylinder.

[0023] In the above drawings: mounting seat 1, slide groove 2, Haval slider 3, connecting part 301, working part 302, cooling water trough 4, motor 5, transmission shaft 6, first gear 7, water inlet pipe 8, drainage pipe 9, return water trough 10, cover plate 11, sliding cylinder 12, rotating shaft 13, second gear 14, molding unit 15, support column 16, bearing 17, rack 18. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Example:

[0026] like Figure 1 and Figure 2 As shown, a cooling molding device for producing double-layer corrugated pipes includes two horizontally opposite molding units 15, each molding unit 15 includes an annular mounting seat 1, the mounting seat 1 is composed of two horizontal sections and two curved sections, a slide groove 2 is opened on the top surface of the mounting seat 1, and a plurality of Haversian sliders 3 are slidably arranged in the slide groove 2;

[0027] A cooling water trough 4 is provided above the mounting seat 1, and a motor 5 is fixedly provided at one end of the bottom of the cooling water trough 4. The output end of the motor 5 is vertically downward and connected to a transmission shaft 6. The bottom end of the transmission shaft 6 is fixedly sleeved with a first gear 7, and the first gear 7 is arranged in one of the curved sections of the mounting seat 1; a vertical rotating shaft 13 is rotatably provided at the other end of the bottom of the cooling water trough 4, and a second gear 14 is fixedly sleeved at the bottom end of the rotating shaft 13, and the second gear 14 is arranged in another curved section of the mounting seat 1. The first gear 7 and the second gear 14 are both used to drive the Haver slider 3 to slide in the slide groove 2, and along the moving direction of the Haver slider 3, the Haver slider 3 located at the rear pushes the Haver slider 3 located at the front to move;

[0028] Each of the Haver sliders 3 includes a working portion 302, and the working portion 302 is a semi-annular cavity. Two opposite Haver sliders 3 located on two molding units 15 are closed together to form an annular cavity, and the annular cavity is used to clamp and mold the plastic pipe and transport the plastic pipe;

[0029] A return water groove 10 is provided below the mounting seat 1, and a water inlet pipe 8 is fixedly penetrated on the side of each Haver slider 3 facing the cooling water groove 4, and the water inlet pipe 8 is communicated with the internal cavity of the working part 302, and the water inlet end of the water inlet pipe 8 extends below the liquid surface in the cooling water groove 4, and a drainage pipe 9 is fixedly penetrated on the side of each Haver slider 3 facing the return water groove 10, and the drainage pipe 9 is communicated with the internal cavity of the working part 302, and the water outlet end of the drainage pipe 9 is provided in the return water groove 10, and each molding unit 15 is also externally connected to a cooling circulation water pump, and the cooling circulation water pump is used to cool the water in the return water groove 10 and return it to the cooling water groove 4.

[0030] In this solution, by providing a mounting seat 1, a cooling water tank 4 provided above the mounting seat 1, a return water tank 10 provided below the mounting seat 1, a Haver slider 3, a water inlet pipe 8, and a drainage pipe 9, the siphon principle is utilized to form a height difference by providing the water inlet pipe 8 in the cooling water tank 4 and the drainage pipe 9 in the return water tank 10; under the two conditions that the water inlet end of the water inlet pipe 8 extends below the liquid surface in the cooling water tank 4, the water in the cooling water tank 4 automatically enters each Haver slider 3 through each water inlet pipe 8, and then flows from the corresponding drainage pipe 9 to the return water tank 10, thereby achieving a sufficient flow rate of cooling water and improving the cooling effect on the Haver slider 3;

[0031] By setting a plurality of Haval sliders 3, and each Haval slider 3 is penetrated by a water inlet pipe 8 and a drainage pipe 9, in accordance with the siphon principle, each Haval slider 3 can be cooled by circulating water individually, so that each Haval slider 3 is fully cooled, and the cooling and molding effect is better; at the same time, the water inlet pipe 8 and the drainage pipe 9 move together with each Haval slider 3, and the water inlet pipes 8 and the drainage pipes 9 of different Haval sliders 3 will not cause any interference;

[0032] The two molding units 15 are placed horizontally opposite to each other, so that two opposite Haver sliders 3 on the two molding units 15 are closed left and right to form an annular cavity. The left and right opening and closing method can realize that the water inlet pipe 8 and the drainage pipe 9 can be set on both Haver sliders 3, so that the temperature on both sides of the annular cavity is consistent. Therefore, the cooling effect of the two Haver sliders 3 is consistent during the production process, and the cooling uniformity is improved; the cooling water tank 4 serves as an open water inlet source for the cold water pipeline, and the cooling circulation water pump does not affect its water inlet when circulating water.

[0033] like Figure 2 and Figure 3As shown, each of the Haval sliders 3 also includes a connecting portion 301, a rack 18 is fixedly provided on one side of the connecting portion 301 away from the working portion 302, the first gear 7 and the second gear 14 are meshed with the rack 18, and drive the Haval slider 3 to slide in the chute 2; the connecting portion 301 is a hollow structure, which is connected to the internal cavity of the working portion 302, the water inlet pipeline 8 is fixedly penetrated on the side of the connecting portion 301 facing the cooling water tank 4, and is connected to the internal cavity of the connecting portion 301, and the drainage pipeline 9 is fixedly penetrated on the side of the connecting portion 301 facing the return water tank 10, and is connected to the internal cavity of the connecting portion 301. The Haval slider 3 is specifically driven to slide by the meshing of the first gear 7, the second gear 14 and the rack 18. Since the meshing between the gear and the rack has a small sliding, the transmission loss can be reduced, and the input power can be effectively transmitted to the output end, so as to achieve efficient power transmission.

[0034] like Figure 2 and Figure 3 As shown, a sliding cylinder 12 is fixedly arranged on one side of the connecting portion 301 facing the mounting seat 1, and the sliding cylinder 12 is slidably arranged in the slide groove 2; a cover plate 11 is arranged above the mounting seat 1, and a limiting slide groove is formed between the cover plate 11 and the mounting seat 1, and the connecting portion 301 is slidably arranged in the limiting slide groove. By arranging the sliding cylinder 12 and the cover plate 11, the sliding direction of the Haval slider 3 can be effectively limited, the Haval slider 3 is prevented from moving vertically, and the sliding stability of the Haval slider 3 is improved.

[0035] like Figure 2 As shown, each molding unit 15 also includes a support column 16, and the cooling water trough 4, the cover plate 11, the mounting seat 1, and the return water trough 10 are fixedly connected through the support column 16. The cooling water trough 4 is fixedly connected to the top of the support column 16, and the bottom of the support column 16 is fixedly arranged in the return water trough 10. The cover plate 11 and the mounting seat 1 are respectively fixedly connected to the side walls of the support column 16 through fixed rods. The water inlet pipe 8 and the drainage pipe 9 are both welded to the Haver slider 3. The welding structure has a large connection rigidity and good sealing performance, which effectively prevents water from leaking from the connection between the water inlet pipe 8 and the connection part 301 and the connection between the drainage pipe 9 and the connection part 301, affecting the cooling effect.

[0036] like Figure 2 As shown, the top of each water inlet pipe 8 is bent into an inverted "U" shape and formed integrally, which can significantly reduce tool costs. Figure 2 As shown, a bearing 17 is fixedly arranged at the bottom of the cooling water tank 4, and the rotating shaft 13 is fixedly penetrated through the inner wall of the bearing 17. This specific installation method has small friction resistance, high mechanical efficiency and excellent performance.

[0037] Working principle:

[0038] When in use, the motors 5 on the two molding units 15 are started, and the first gears 7 and the second gears 14 on the two molding units 15 are adjusted to run synchronously, so that the opening and closing of two opposite Haval sliders 3 on the two molding units 15 are completely aligned during operation. Specifically, the output end of each motor 5 drives the corresponding transmission shaft 6 to rotate, and the rotation of the transmission shaft 6 drives the corresponding first gear 7 to rotate. The rotation of the first gear 7 drives the Haval slider 3 meshed with the first gear 7 to slide, and along the moving direction of the Haval slider 3, the Haval slider 3 pushes the Haval slider in front. The Haval slider 3 moves, and the front Haval slider 3 moves toward the second gear 14. After meshing with the second gear 14, the rear Haval slider 3 continues to push the front Haval slider 3, driving the second gear 14 to rotate. The rotation of the second gear 14 drives the Haval slider 3 meshing with the second gear 14 to slide, thereby pushing the front Haval slider 3 to move toward the first gear 7, and then the Haval slider 3 repeatedly moves in the chute 2; then the materials are fed into the two molding units 15, and the Haval sliders 3 that form the annular cavity are closed to clamp and mold the plastic pipes and convey them;

[0039] The movement of each Haver slider 3 drives the corresponding water inlet pipe 8 and drainage pipe 9 to move, and in this process, the cooling water in the cooling water tank 4 enters each Haver slider 3 through each water inlet pipe 8, and then flows from the corresponding drainage pipe 9 to the return water tank 10;

[0040] At the same time, the cooling circulation water pump is started, and the cooling circulation water pump cools the water in the return water tank 10 and returns it to the cooling water tank 4, and the whole operation is completed.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A cooling and forming device for producing double-layer corrugated pipes, characterized in that: The invention comprises two horizontally opposed molding units (15), each molding unit (15) comprises an annular mounting seat (1), the mounting seat (1) comprises two horizontal sections and two curved sections, a slide groove (2) is formed on the top surface of the mounting seat (1), and a plurality of Haversian sliding blocks (3) are slidably arranged in the slide groove (2); A cooling water trough (4) is provided above the mounting seat (1), and a motor (5) is fixedly provided at one end of the bottom of the cooling water trough (4). The output end of the motor (5) is vertically downward and connected to a transmission shaft (6). The bottom end of the transmission shaft (6) is fixedly sleeved with a first gear (7), and the first gear (7) is arranged in one of the curved sections of the mounting seat (1); a vertical rotating shaft (13) is rotatably provided at the other end of the bottom of the cooling water trough (4), and a second gear (14) is fixedly sleeved at the bottom end of the rotating shaft (13), and the second gear (14) is arranged in another curved section of the mounting seat (1). The first gear (7) and the second gear (14) are both used to drive the Haver slider (3) to slide in the slide groove (2), and along the moving direction of the Haver slider (3), the Haver slider (3) located at the rear pushes the Haver slider (3) located at the front to move; Each of the Haver sliders (3) comprises a working portion (302), wherein the working portion (302) is a semi-annular cavity, and two of the Haver sliders (3) located on two molding units (15) and facing each other are combined to form an annular cavity, and the annular cavity is used to clamp and mold the plastic pipe and transport the pipe; A return water trough (10) is provided below the mounting seat (1); a water inlet pipe (8) is fixedly penetrated on one side of each Haver slider (3) facing the cooling water trough (4); the water inlet pipe (8) is communicated with the internal cavity of the working part (302); the water inlet end of the water inlet pipe (8) extends below the liquid surface in the cooling water trough (4); a drainage pipe (9) is fixedly penetrated on one side of each Haver slider (3) facing the return water trough (10); the drainage pipe (9) is communicated with the internal cavity of the working part (302); the water outlet end of the drainage pipe (9) is provided in the return water trough (10); each molding unit (15) is also externally connected to a cooling circulation water pump, which is used to cool the water in the return water trough (10) and return it to the cooling water trough (4).

2. A cooling and forming device for producing double-layer corrugated pipes according to claim 1, characterized in that: Each of the Haver sliders (3) further comprises a connecting portion (301), a rack (18) being fixedly provided on a side of the connecting portion (301) away from the working portion (302), the first gear (7) and the second gear (14) being meshed with the rack (18) and driving the Haver slider (3) to slide in the slide groove (2); the connecting portion (301) being a hollow structure and being communicated with the internal cavity of the working portion (302); the water inlet pipe (8) being fixedly provided on a side of the connecting portion (301) facing the cooling water tank (4) and being communicated with the internal cavity of the connecting portion (301); and the drainage pipe (9) being fixedly provided on a side of the connecting portion (301) facing the return water tank (10) and being communicated with the internal cavity of the connecting portion (301).

3. A cooling and forming device for producing double-layer corrugated pipes according to claim 2, characterized in that: A sliding cylinder (12) is fixedly arranged on one side of the connecting portion (301) facing the mounting seat (1), and the sliding cylinder (12) is slidably arranged in the sliding groove (2); a cover plate (11) is arranged above the mounting seat (1), and a limiting sliding groove is formed between the cover plate (11) and the mounting seat (1), and the connecting portion (301) is slidably arranged in the limiting sliding groove.

4. The cooling and forming device for producing double-layer corrugated pipes according to claim 1, characterized in that: Each molding unit (15) further comprises a support column (16), and the cooling water trough (4), the cover plate (11), the mounting seat (1), and the return water trough (10) are fixedly connected via the support column (16).

5. The cooling and forming device for producing double-layer corrugated pipes according to claim 1, characterized in that: The water inlet pipeline (8) and the water discharge pipeline (9) are both welded to the Haver slider (3).

6. A cooling and forming device for producing double-layer corrugated pipes according to claim 4, characterized in that: The top of each water inlet pipe (8) is bent in an inverted "U" shape and formed integrally.

7. The cooling and forming device for producing double-layer corrugated pipes according to claim 1, characterized in that: A bearing (17) is fixedly arranged at the bottom of the cooling water tank (4), and the rotating shaft (13) is fixedly arranged and penetrates the inner wall of the bearing (17).

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