Material turning frame for PVC (polyvinyl chloride) pipe production

Abstract

The utility model discloses a material turning frame for PVC (polyvinyl chloride) pipe production, which relates to the technical field of PVC pipe production devices and comprises a frame body, two mounting plates are fixedly mounted on the top surface of the frame body, a rotating ring is arranged on one sides of the two mounting plates, one side of the rotating ring is connected with a rotating component through a rotating rod, two moving plates are arranged on the top surface of the frame body, and the moving plates are connected with the rotating component through a rotating rod. A bearing is arranged on one sides of the two movable plates, a limiting ring is connected to one side of the bearing, a cooling assembly is arranged in the two limiting rings, and an adjusting assembly is connected to the bottom faces of the two movable plates. And through the air blowing assembly, the outer side surface of the PVC pipe can be subjected to air blowing cooling, through the cooling assembly, the inner wall of the PVC pipe can be subjected to air blowing cooling, and the cooling and shaping efficiency of the PVC pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipe production devices, in particular to a turnover rack for PVC pipe production. Background Technique

[0002] Polyvinyl chloride (abbreviation: PVC) is a polymer material that uses a chlorine atom to replace a hydrogen atom in polyethylene. PVC is a white powder with an amorphous structure and a relatively small degree of esterification. The molecular weight of industrially produced PVC is generally in the range of 50,000 to 120,000, with a large polydispersity. The molecular weight increases as the polymerization temperature decreases. It has no fixed melting point, starts to soften at 80 - 85°C, becomes viscoelastic at 130°C, and starts to transform into a viscous flow state at 160 - 180°C. Its tensile strength is about 60 MPa, and the impact strength is 5 - 10 kJ / m2; it has excellent dielectric properties. It has poor stability to light and heat. When heated above 100°C or exposed to sunlight for a long time, it will decompose to produce hydrogen chloride and automatically catalyze decomposition to cause discoloration. In practical applications, stabilizers must be added to improve its stability to heat and light. PVC is very hard and can only dissolve in a few solvents such as cyclohexanone, dichloroethane, and tetrahydrofuran. It is stable to organic and inorganic acids, alkalis, and salts, and its chemical stability decreases as the use temperature increases. After the PVC pipes are produced, the pipes need to be turned over to facilitate other operation processes such as cooling.

[0003] As disclosed in a utility model with the authorization announcement number CN219618309U, a turnover rack for PVC pipe production enables the PVC pipes to be turned over, enhancing the performance of the turnover rack.

[0004] This existing technology still has the following problems when in use:

[0005] This device conveys cold air to the air cavity through a blower, and the cold air then flows out from the air outlet. A part of the flowing air will enter the ventilation holes and then enter the pipe supporting grooves through the inner through holes to contact the outer surface of the PVC pipes. However, in this cooling method, the cold air can only directly contact the outer surface of the PVC pipes. Commonly used PVC pipes on the market are hollow inside. Therefore, when this device cools down, the temperature dropped on the outer surface will take a long time to transfer to the inner wall, and thus the cold air cannot directly contact the inner wall of the PVC pipes, which reduces the cooling efficiency of the PVC pipes and increases the time required for cooling. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the present utility model provides a turnover rack for PVC pipe production. By providing a cooling component, during use, it can cooperate with the first fan. Through the first fan, the outer surface of the PVC pipe can be blown to cool down. Through the cooling component, the inner wall of the PVC pipe can be blown to cool down, increasing the cooling and shaping efficiency of the PVC pipe.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions: A turnover rack for PVC pipe production, including a frame body. On the top surface of the frame body, two mounting plates are fixedly installed. On one side of the two mounting plates, there is a rotating ring, and one side of the rotating ring is connected to a rotating component through a rotating rod. On the top surface of the frame body, there are two moving plates. On one side of the two moving plates, there is a bearing, and one side of the bearing is connected to a limiting ring. Inside the two limiting rings, there is a cooling component. The bottom surfaces of the two moving plates are connected to an adjusting component.

[0008] Preferably, the cooling component is composed of a ventilation pipe and a second fan. The second fan is fixedly installed on the outer surface of the moving plate through a fixing frame, and one side of the second fan is communicated with a ventilation pipe.

[0009] Preferably, the adjusting component is composed of a hydraulic rod and an adjusting block. The top end of the adjusting block is fixedly connected to the moving plate, and one side of the adjusting block is connected to the telescopic end of the hydraulic rod.

[0010] Preferably, two adjusting grooves are opened on the top surface of the frame body, and the two hydraulic rods are respectively placed inside the two adjusting grooves.

[0011] Preferably, the rotating component is composed of a toothed plate, a gear, a push rod, a moving block, and a bidirectional threaded rod. The gear is connected to the rotating ring through a rotating rod. On one side of the two gears, there is a toothed plate engaged with them. On one side of the two toothed plates, there is a fixed push rod. At the bottom ends of the two push rods, there is a fixed moving block. A bidirectional threaded rod passes through between the two moving blocks.

[0012] Preferably, a guide rod passes through between the two moving blocks. The outer surface of the frame body is fixedly installed with a rotating motor through a fixing frame, and the output end of the rotating motor is connected to the bidirectional threaded rod.

[0013] Preferably, two sliding grooves are opened on the top surface of the frame body. On both sides of the two push rods, there are fixed sliding blocks, and the two sliding blocks are placed inside the sliding grooves and are slidably connected thereto.

[0014] Preferably, vertical rods are fixedly connected to the four corners of the top surface of the frame body. The top ends of the vertical rods are fixedly installed with a top plate, and first fans are symmetrically arranged on the bottom surface of the top plate.

[0015] Preferably, rubber plates are laid on the inner walls of the rotating ring and the limiting ring.

[0016] Preferably, a plurality of ventilation holes are formed on the surface of the rotating ring, and the ventilation holes penetrate through the rubber plate and communicate with the outside.

[0017] Compared with the prior art, the beneficial effects that the present utility model can achieve are as follows:

[0018] 1. By providing a cooling component, during use, in cooperation with the first fan, the outer surface of the PVC pipe can be blown and cooled by the first fan, and the inner wall of the PVC pipe can be blown and cooled by the cooling component, increasing the cooling and shaping efficiency of the PVC pipe;

[0019] 2. By providing a rotating component, during use, the PVC pipe can be driven to rotate uniformly through the rotating component, facilitating the cooling of different outer surfaces and also facilitating subsequent other operation processes.

[0020] 3. By providing an adjusting component, during use, the distance between the rotating ring and the limiting ring can be adjusted through the adjusting component, thereby limiting and rotating PVC pipes of different lengths, increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a side-view structural schematic diagram of the present utility model;

[0023] Figure 3 is a structural schematic diagram of the rotating component of the present utility model;

[0024] Figure 4 is a structural schematic diagram of the adjusting component of the present utility model;

[0025] Figure 5 is a structural schematic diagram of the cooling component of the present utility model;

[0026] Figure 6 is a structural schematic diagram of the inside of the rotating ring of the present utility model;

[0027] Among them: 1. Frame body; 2. Vertical rod; 3. Top plate; 4. First fan; 5. Slide groove; 6. Push rod; 7. Rack; 8. Gear; 9. Mounting plate; 10. Rotating ring; 11. Limiting ring; 12. Ventilation pipe; 13. Adjusting groove; 14. Rotating motor; 15. Second fan; 16. Moving plate; 17. Hydraulic rod; 18. Adjusting block; 19. Bidirectional threaded rod; 20. Moving block; 21. Guide rod; 22. Slide block; 23. Rubber plate; 24. Ventilation hole; 25. Bearing. Detailed implementation mode

[0028] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present utility model.

[0029] Embodiment

[0030] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown, the present utility model provides a turnover rack for PVC pipe production, including a frame body 1. Four corners of the top surface of the frame body 1 are fixedly connected with vertical rods 2. The top ends of the vertical rods 2 are fixedly connected with a top plate 3. The bottom surface of the bottom plate is symmetrically provided with first blowers 4 for cooling the outer surface of the PVC pipe, and the air outlets of the first blowers 4 are directed towards the top surface of the frame body 1. Two mounting plates 9 are fixedly connected to the top surface of the frame body 1. A rotating ring 10 is arranged on one side of the mounting plate 9. Two moving plates 16 are arranged on the top surface of the frame body 1. A bearing 25 is arranged on one side of the moving plate 16. The rotating end of the bearing 25 is connected with a limiting ring 11. When in use, both ends of the PVC pipe can be respectively placed inside the rotating ring 10 and the limiting ring 11. By starting the first blower 4, the outer surface of the PVC pipe can be cooled. A regulating component is arranged on the bottom surface of the moving plate 16, and the regulating component is composed of a hydraulic rod 17 and a regulating block 18. The top surface of the regulating block 18 is fixedly connected with the bottom surface of the moving plate 16, and one side of the regulating block 18 is connected with the telescopic end of the hydraulic rod 17. Thus, by starting the hydraulic rod 17, the hydraulic rod 17 can push the moving plate 16 to move through the regulating block 18. When the moving plate 16 moves, the limiting ring 11 can be driven to move, so as to adjust the distance between the limiting ring 11 and the rotating ring 10, which is convenient for limiting PVC pipes of different lengths. And when in use, the limiting ring 11 can be driven to move through the regulating component. The limiting ring 11 can push the pipe placed inside to move. When both ends of the pipe are in full contact with the inner walls of the limiting ring 11 and the rotating ring 10, the pipe can be fixed inside the limiting ring 11 and the rotating ring 10, preventing the possibility that the pipe cannot be flipped due to insufficient fixation during the subsequent flipping of the pipe. Two regulating grooves 13 are opened on the top surface of the frame body 1, and the regulating component is arranged inside the regulating grooves 13;

[0031] It should be noted that the first blower 4 of this device is composed of multiple separate cooling fans. During actual use, the cooling fans can be sequentially turned on according to the length of the PVC pipe, preventing the waste of electric power resources caused by the pipe being too short and having too large a wind receiving area;

[0032] When using this device, place the device at the designated position, start the hydraulic rod 17, the hydraulic rod 17 drives the adjusting block 18 to move, the adjusting block 18 drives the moving plate 16 to move, the moving plate 16 drives the limiting ring 11 to move, and adjust the distance between the limiting ring 11 and the rotating ring 10 to a distance corresponding to the length of the PVC pipe to be flipped. Place the two ends of the PVC pipe inside the rotating ring 10 and the limiting ring 11 respectively. Start the hydraulic rod 17 again. The hydraulic rod 17 pushes the moving plate 16 through the adjusting block 18, and the moving plate 16 drives the limiting ring 11 to move towards the rotating ring 10, so that the two ends of the pipe are in full contact with the inner walls of the fixed ring and the limiting ring 11, thereby fixing the pipe inside the limiting ring 11 and the rotating ring 10 and waiting for subsequent flipping. Start the first fan 4, and the first fan 4 can cool the outer surface of the pipe;

[0033] As a further implementation of this embodiment, such as Figures 1-6As shown, a rotating assembly is provided on one side of the mounting plate 9, and the rotating assembly is composed of a toothed plate 7, a gear 8, a push rod 6, a moving block 20, and a bidirectional threaded rod 19. Two gears 8 are fixedly connected to two rotating rings 10 through rotating rods respectively. Therefore, when the gear 8 rotates, it can drive the rotating ring 10 to rotate. One side of the two gears 8 is meshed with a toothed plate 7. One side of the two toothed plates 7 is fixedly connected with a push rod 6. The bottom ends of the two push rods 6 are fixedly connected with a moving block 20. A bidirectional threaded rod 19 is arranged between the two moving blocks 20, and the bidirectional threaded rod 19 is threadedly connected with the two moving blocks 20, and the two sections of the bidirectional threaded rod 19 have opposite threads. Thus, when the bidirectional threaded rod 19 is rotated, it can drive the two moving blocks 20 to move towards or away from each other. A guide rod 21 is arranged between the two moving blocks 20, and the guide rod 21 is slidably connected with the two moving blocks 20. Therefore, when the bidirectional threaded rod 19 drives the two moving blocks 20 to move, the two moving blocks 20 can slide on the guide rod 21, thereby increasing the stability and directivity of the movement of the moving block 20. Two sliding grooves 5 are opened on the top surface of the frame body 1. Two sides of the two push rods 6 are fixedly connected with sliding blocks 22, and the sliding blocks 22 are placed inside the sliding grooves 5 and are slidably connected with them. Thus, when the moving block 20 drives the push rod 6 to move, the sliding block 22 can slide inside the sliding groove 5, thereby increasing the stability and directivity of the movement of the push rod 6. A cooling assembly is arranged inside the two limiting rings 11, and the cooling assembly is composed of a ventilation pipe 12 and a second fan 15. The second fan 15 is fixedly installed on the outer surface of the moving plate 16 through a fixing frame, and one side of the second fan 15 is communicated with a ventilation pipe 12. The ventilation pipe 12 is divided into two sections. One end of one section extends into the inner side of the limiting ring 11, and the other section is placed outside. During use, the ventilation pipe 12 can be inserted into the hollow part inside the pipe. By starting the second fan 15, the second fan 15 can blow air towards the inside of the ventilation pipe 12. The cold air is divided into two streams. One stream blows towards the inside of the pipe, and thus the inside of the pipe can be cooled. The other stream contacts the outer surface of the pipe and can cool the outer surface of the pipe. And it cooperates with the first fan 4, greatly increasing the stability of the temperature drop on the surface of the pipe, thereby improving the cooling efficiency. Rubber plates 23 are arranged inside the limiting rings 11 and the rotating rings 10. When the pipe is placed inside the limiting rings 11 and the fixing rings, its two ends can contact the rubber plates 23. Through the softness of the rubber plates 23 themselves and the large friction coefficient, it can prevent the pipe from deforming due to excessive clamping force during the process of limiting and fixing the pipe, and also prevent the pipe from shifting during the subsequent rotation of the pipe. A plurality of ventilation holes 24 are opened on the surface of the rotating ring 10, and the ventilation holes 24 penetrate through the rubber plates 23 and are communicated with the outside. During use, when the ventilation pipe 12 blows cold air towards the inside of the pipe, the cold air will exchange heat with the temperature on the surface of the pipe. At this time, the cold air will become hot, and the hot air will be discharged from the ventilation holes 24 towards the outside, thereby preventing the hot air from not being discharged and causing the pipe to continuously expand.The outer surface of the frame body 1 is fixedly mounted with a rotating motor 14 through a fixing frame, and the output end of the rotating motor 14 is connected to the bidirectional threaded rod 19, so that the rotating motor 14 can be started to drive the bidirectional threaded rod 19 to rotate;

[0034] It is worth noting that the PVC pipe begins to soften at 80-85°, so the temperature of the PVC pipe during the molding stage should be less than 85°, and the melting point of rubber is between 100°-200°, so when the rubber sheet 23 of the device contacts the PVC pipe, it will not melt due to the excessively high temperature of the surface of the PVC pipe, and thus will not affect the normal use of the rubber sheet 23;

[0035] When the device is further used, after fixing the two ends of the rubber plate 23 to the limiting ring 11 and the rotating ring 10, the second fan 15 is started, and the second fan 15 blows air to the inside of the ventilation pipe 12. The cold air is divided into two streams, one of which enters the inside of the pipe and contacts with its inner wall so as to cool the inner wall, and the other side contacts with the outer wall of the pipe so as to cool the outer surface. By cooperating with the first fan 4, the inner wall and the outer surface of the pipe can be cooled at the same time, thereby increasing the cooling effect. The rotating motor 14 is started, and the rotating motor 14 drives the double blowers 14 to blow. The threaded rod 19 rotates, and the bidirectional threaded rod 19 drives the two moving blocks 20 to move relative to or away from each other. The two moving blocks 20 drive the two push rods 6 to move relative to or away from each other. The push rod 6 drives the toothed plate 7 to move, and the toothed plate 7 drives the gear 8 to rotate. The gear 8 drives the rotating ring 10 to rotate through the rotating rod. When the rotating ring 10 rotates, the limiting ring 11 can be driven to rotate on the bearing 25 through the limited and fixed pipe, so that the limited and fixed pipe can be driven to rotate. The outer surface of the pipe during the rotation process can be cooled conveniently, and subsequent processing operations can also be performed on it.

[0036] Specific working principle: Place this device at the designated position. By starting the hydraulic rod 17, the hydraulic rod 17 drives the adjusting block 18 to move. The adjusting block 18 drives the moving plate 16 to move. The moving plate 16 drives the limiting ring 11 to move, and adjusts the distance between the limiting ring 11 and the rotating ring 10 to the distance corresponding to the PVC pipe to be processed. Place the two ends of the PVC pipe inside the limiting ring 11 and the rotating ring 10. Then, push the limiting ring 11 to move again through the hydraulic rod 17 to limit and fix the pipe inside the limiting ring 11 and the fixed ring. Start the rotating motor 14. The rotating motor 14 drives the bidirectional threaded rod 19 to rotate. The bidirectional threaded rod 19 drives the two moving blocks 20 to move relatively or away from each other. The two moving blocks 20 drive the push rod 6 to move. The push rod 6 drives the toothed plate 7 to move. The toothed plate 7 drives the gear 8 to rotate. The gear 8 drives the rotating ring 10 to rotate through the rotating rod. The rotating ring 10 drives the limiting ring 11 to rotate inside the bearing 25 through the limited and fixed pipe, so that the pipe can rotate smoothly. Start the first fan 4 and the second fan 15. The first fan 4 can blow air to the outer surface of the pipe during rotation, so as to cool the outer surface of the pipe. The second fan 15 blows air into the inside of the ventilation pipe 12. The ventilation pipe 12 divides the cold air into two streams. One stream enters the inside of the pipe and contacts its inner wall, so as to cool the inner wall of the pipe. The other stream contacts the outer surface of the pipe to cool its outer surface. And the heated cold air will be discharged to the outside through the ventilation holes 24. When cooling the inner and outer surfaces of the pipe at the same time, the cooling and forming efficiency of the pipe is increased. The pipe during rotation is also convenient for subsequent processing.

[0037] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only the preferred examples of the present utility model and do not limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A turning rack for PVC pipe production, comprising a rack body (1), characterized in that: Two mounting plates (9) are fixedly mounted on the top surface of the frame body (1), a rotating ring (10) is provided on one side of the two mounting plates (9), and a rotating assembly is connected to one side of the rotating ring (10) via a rotating rod, two movable plates (16) are provided on the top surface of the frame body (1), a bearing (25) is provided on one side of the two movable plates (16), and a limiting ring (11) is connected to one side of the bearing (25), a cooling assembly is provided inside the two limiting rings (11), and an adjustment assembly is connected to the bottom surfaces of the two movable plates (16).

2. A turning rack for PVC pipe production according to claim 1, characterized in that: The cooling component is composed of a ventilation pipe (12) and a second fan (15); the second fan (15) is fixedly mounted on the outer surface of the movable plate (16) via a fixing frame, and one side of the second fan (15) is connected to the ventilation pipe (12).

3. A material turning rack for PVC pipe production according to claim 1, characterized in that: The adjustment assembly is composed of a hydraulic rod (17) and an adjustment block (18). The top end of the adjustment block (18) is fixedly connected to the movable plate (16), and one side of the adjustment block (18) is connected to the telescopic end of the hydraulic rod (17).

4. A turning rack for PVC pipe production according to claim 3, characterized in that: The top surface of the frame (1) is provided with two adjustment grooves (13), and two hydraulic rods (17) are respectively placed inside the two adjustment grooves (13).

5. The turning rack for PVC pipe production according to claim 1, characterized in that: The rotating assembly is composed of a toothed plate (7), a gear (8), a push rod (6), a moving block (20) and a bidirectional threaded rod (19); the gear (8) is connected to the rotating ring (10) through a rotating rod; one side of the two gears (8) is meshedly connected with a toothed plate (7); one side of the two toothed plates (7) is fixedly connected with a push rod (6); the bottom ends of the two push rods (6) are fixedly connected with a moving block (20); and a bidirectional threaded rod (19) is inserted between the two moving blocks (20).

6. A turning rack for PVC pipe production according to claim 5, characterized in that: A guide rod (21) is provided between the two moving blocks (20), a rotating motor (14) is fixedly mounted on the outer surface of the frame body (1) via a fixing frame, and the output end of the rotating motor (14) is connected to a bidirectional threaded rod (19).

7. A turning rack for PVC pipe production according to claim 5, characterized in that: The top surface of the frame (1) is provided with two slide grooves (5), and two sliding blocks (22) are fixedly connected to the two sides of the two push rods (6), and the two sliding blocks (22) are placed inside the slide grooves (5) and are slidably connected thereto.

8. The turning rack for PVC pipe production according to claim 1, characterized in that: Vertical poles (2) are fixedly connected at the four corners of the top surface of the frame (1), a top plate (3) is fixedly mounted on the top of the vertical pole (2), and a first fan (4) is symmetrically arranged on the bottom surface of the top plate (3).

9. A material turning rack for PVC pipe production according to claim 1, characterized in that: The inner walls of the rotating ring (10) and the limiting ring (11) are paved with rubber plates (23).

10. A turning rack for PVC pipe production according to claim 1, characterized in that: A plurality of ventilation holes (24) are provided on the surface of the rotating ring (10), and the ventilation holes (24) penetrate the rubber plate (23) and are connected to the outside.

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