PVC double tube traction device

Abstract

The utility model discloses PVC double -tube traction device, including the case, the top of case is equipped with the observation frame, and the both ends of observation frame all are equipped with two through -grooves, and the inside of observation frame is provided with two traction platform, and two traction platforms are symmetrically set up, and the traction platform of top is equipped with elevating system between observation frame, install two double -shaft motor in the traction platform, and the both ends of double -shaft motor all are equipped with transmission roll, and the both sides of two transmission rolls of same side are set up with a conveyer belt, and the circumferential side of conveyer belt is provided with a plurality of elastic cover, and the pressure regulating pipe is seted up between a plurality of elastic cover, and the pressure regulating mechanism that is connected with four pressure regulating pipes is provided in the case. The utility model discloses the pressure regulating mechanism of setting, can make pressure regulating mechanism adjust the pressure in a plurality of elastic cover through pressure regulating pipe, makes elastic cover can according to the local shape of tubular product real -time transmission and balanced pressure, and the pressure of conveying tubular product can be along tubular product axial automatic even distribution, and eliminated local stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of pipe manufacturing technology, specifically to a PVC double-pipe traction device. Background Technology

[0002] On the PVC pipe extrusion production line, the traction machine is one of the most important auxiliary equipment. When the plastic pipes, after sizing and cooling, enter the next stage of processing, the traction machine can provide stable and adjustable traction force and traction speed to ensure that the outer diameter and roundness of the pipes meet the requirements.

[0003] Currently, the spacing between the two traction structures of most PVC pipe production traction machines is fixed, making it difficult to adjust according to the actual pipe size. This results in certain limitations during the subsequent pipe traction process and poor overall practicality. Adjustment is also mostly achieved by applying pressure to the driven roller bearing seat using cylinders or hydraulic cylinders, which makes it difficult to make adaptive adjustments during pipe traction. There is an urgent need to design a PVC dual-pipe traction device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a PVC double-pipe traction device to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A PVC double-pipe traction device includes a housing, an observation frame installed on the top of the housing, two through slots at both ends of the observation frame, two traction platforms arranged symmetrically inside the observation frame, and a lifting mechanism between the top traction platform and the observation frame. The traction platform is equipped with two dual-axis motors. Each of the two output ends of the dual-axis motors is equipped with a transmission roller. A conveyor belt is sleeved between the two transmission rollers on the same side. Multiple elastic sleeves are arranged around the periphery of the conveyor belt. Pressure regulating pipes are arranged between the multiple elastic sleeves. A pressure regulating mechanism connected to the four pressure regulating pipes is arranged inside the machine housing.

[0006] Furthermore, an electric slide rail is installed on one side of the observation frame, a movable frame is slidably fitted on the top of the electric slide rail, and a laser measuring instrument is installed on one side of the movable frame.

[0007] Furthermore, the lifting mechanism includes two fixed blocks respectively installed on both sides of the inner wall of the observation frame, and two cylinders respectively installed at the bottom of the two fixed blocks, with the output ends of the two cylinders connected to the traction platform located at the top.

[0008] Furthermore, an electric push rod is installed on one side of the observation frame, and a hot melt cutting blade is installed at the output end of the electric push rod. The hot melt cutting blade corresponds to the two through slots on the same side.

[0009] Furthermore, one side of the chassis is fitted with multiple doors, and a handle is installed on one side of each door.

[0010] Furthermore, the pressure regulating mechanism includes two pressure sources disposed inside the chassis, a connecting pipe disposed at the output end of the pressure source, and two channels opened on the top of the chassis. The connecting pipe passes through the channels, and one end of the connecting pipe is provided with a fork. Two pressure regulating pipes on the two conveyor belts on the same side are connected to the connecting pipe.

[0011] Furthermore, a hydraulic chamber is provided inside the elastic sleeve, and a limiting groove is formed by the middle of the top side of the elastic sleeve being recessed and the two ends being protruding.

[0012] Furthermore, a fixing cylinder is installed on both sides of the traction table, and a limit plate is provided on both sides of the traction table. A fixing bolt is provided inside the limit plate, and the fixing bolt is threadedly engaged with the fixing cylinder. The two ends of the limit plate are respectively rotatably engaged with two transmission rollers on the same side.

[0013] In the above technical solution, the PVC double-pipe traction device provided by this utility model has the following advantages: The pressure regulating mechanism allows for adjustment of the pressure within multiple elastic sleeves via a pressure regulating pipe. This enables the elastic sleeves to transmit and balance pressure in real time according to the local shape of the pipe. The clamping force on the conveying pipe is automatically and evenly distributed along the pipe's axial direction, eliminating local stress concentration. Combined with a lifting mechanism, it can adapt to different pipe sizes. Through the traction platform, two pipes can be tractioned with a single drive system, greatly reducing equipment purchase costs, floor space, and energy consumption. Synchronous transmission via dual-axis motors fundamentally ensures that the linear speeds of the two traction units are completely consistent, guaranteeing the uniformity of the length and mechanical properties of the double pipes produced in the same batch. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the traction device structure provided for an embodiment of the PVC double-tube traction device of this utility model.

[0016] Figure 2 A schematic diagram of the observation frame structure provided for an embodiment of the PVC double-tube traction device of this utility model.

[0017] Figure 3 A schematic diagram of the pressure regulating mechanism provided in an embodiment of the PVC double-pipe traction device of this utility model.

[0018] Figure 4 A schematic diagram of the traction platform structure provided for an embodiment of the PVC double-pipe traction device of this utility model.

[0019] 1. Chassis; 2. Observation frame; 3. Through slot; 4. Traction table; 5. Lifting mechanism; 6. Dual-axis motor; 7. Transmission roller; 8. Conveyor belt; 9. Elastic sleeve; 10. Pressure regulating pipe; 11. Pressure regulating mechanism; 12. Electric slide rail; 13. Moving frame; 14. Laser measuring instrument; 15. Fixing block; 16. Cylinder; 17. Electric push rod; 18. Hot melt cutting blade; 19. Box door; 20. Handle; 21. Pressure source; 22. Connecting pipeline; 23. Channel; 24. Fixing cylinder; 25. Limiting plate; 26. Fixing bolt. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown in the figure, this utility model provides a PVC double-pipe traction device.

[0022] Includes a chassis 1, an observation frame 2 is installed on the top of the chassis 1, two through slots 3 are opened at both ends of the observation frame 2, two traction platforms 4 are set inside the observation frame 2, the two traction platforms 4 are arranged symmetrically, and a lifting mechanism 5 is set between the traction platform 4 at the top and the observation frame 2. Two dual-axis motors 6 are installed inside the traction table 4. Each of the two output ends of the dual-axis motors 6 is equipped with a transmission roller 7. A conveyor belt 8 is sleeved between the two transmission rollers 7 on the same side. Multiple elastic sleeves 9 are arranged around the periphery of the conveyor belt 8. Pressure regulating pipes 10 are arranged between the multiple elastic sleeves 9. A pressure regulating mechanism 11 connected to the four pressure regulating pipes 10 is installed inside the machine box 1.

[0023] Reference Figure 1 In this embodiment, an electric slide rail 12 is installed on one side of the observation frame 2, and a movable frame 13 is slidably fitted on the top of the electric slide rail 12. A laser measuring instrument 14 is installed on one side of the movable frame 13. The laser measuring instrument 14 can be used to inspect the traction pipe, and the electric slide rail 12 allows the movable frame 13 to move, thereby moving and adjusting the position of the laser measuring instrument 14.

[0024] Reference Figure 2In this embodiment, the lifting mechanism 5 includes two fixed blocks 15 respectively installed on both sides of the inner wall of the observation frame 2, and two cylinders 16 respectively installed at the bottom of the two fixed blocks 15. The output ends of the two cylinders 16 are connected to the traction platform 4 located at the top. Through the cylinders 16, the two cylinders 16 can drive the traction platform 4 at the top to rise or fall, so that the distance between the two traction platforms 4 can be adjusted according to the size of the pipe.

[0025] Reference Figure 2 In this embodiment, an electric push rod 17 is installed on one side of the observation frame 2. A hot melt cutting blade 18 is installed at the output end of the electric push rod 17, and the hot melt cutting blade 18 corresponds to two through slots 3 on the same side. The hot melt cutting blade 18 can be used to push the electric push rod 17 to move the hot melt cutting blade 18 downward, so that the hot melt cutting blade 18 can cut the pipe.

[0026] Reference Figure 2 In this embodiment, the chassis 1 has multiple doors 19 rotatably fitted on one side, and a handle 20 is installed on one side of each door 19. By pulling the handle 20 through the provided door 19, the door 19 can be opened to inspect and maintain the equipment inside the chassis 1.

[0027] Reference Figure 3 The pressure regulating mechanism 11 in this embodiment includes two pressure sources 21 disposed inside the housing 1, a connecting pipe 22 disposed at the output end of the pressure source 21, and two channels 23 formed on the top of the housing 1. The connecting pipe 22 passes through the channels 23, and one end of the connecting pipe 22 is provided with a fork. Two pressure regulating pipes 10 on the two conveyor belts 8 on the same side are connected to the connecting pipe 22. Through the pressure sources 21, hydraulic pressure can be delivered by the pressure sources 21 through the connecting pipes 22, and the fork of the connecting pipe 22 can be connected to the two pressure regulating pipes 10 on the same side, so that the pressure in multiple elastic sleeves 9 of a single pipe can be controlled simultaneously.

[0028] Reference Figure 4 In this embodiment, the elastic sleeve 9 is provided with a hydraulic chamber, and the top side of the elastic sleeve 9 has a central recess with protruding ends to form a limiting groove. The limiting groove can limit the pulling of the pipe, so that the pipe is pulled and moved in the middle position of the elastic sleeve 9.

[0029] Reference Figure 4In this embodiment, both sides of the traction table 4 are equipped with fixing cylinders 24, and both sides of the traction table 4 are provided with limiting plates 25. Fixing bolts 26 are installed inside the limiting plates 25, and the fixing bolts 26 are threadedly engaged with the fixing cylinders 24. The two ends of the limiting plates 25 are respectively rotatably engaged with two transmission rollers 7 on the same side. The limiting plates 25 support the two transmission rollers 7 and limit the movement of the conveyor belt 8. The fixing bolts 26 and fixing cylinders 24 are threadedly connected to install and fix the limiting plates 25, allowing them to be disassembled for maintenance.

[0030] Working principle: In use, the pipe first passes through the through groove 3 and through the observation frame 2, so that the pipe is located between the two traction platforms 4, allowing two pipes to pass through at the same time. After preparation, the lifting mechanism 5 is activated, which will drive the top traction platform 4 to press down, so that the two traction platforms 4 gradually move closer, allowing the elastic sleeves 9 on the conveyor belt 8 to fit the periphery of the pipe. Then, the dual-shaft motor 6 is started, which drives the transmission roller 7 to rotate. The transmission roller 7 drives the conveyor belt 8, so that the conveyor belt 8 pulls the pipe through the elastic sleeves 9 to move. During the traction and conveying process, the pressure regulating mechanism 11 can adjust the pressure in multiple elastic sleeves 9 through the pressure regulating pipe 10, so that the elastic sleeves 9 adapt to the local shape of the pipe. The pressure source 21 of the pressure regulating mechanism 11 can be connected to control multiple elastic sleeves 9 on the periphery of the two conveyor belts 8 on the same side through the connecting pipe 22. The connecting pipe 22 is connected to the two pressure regulating pipes 10 through the bifurcation port.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A PVC double-pipe traction device, comprising a housing (1), characterized in that, An observation frame (2) is installed on the top of the chassis (1). Two through slots (3) are opened at both ends of the observation frame (2). Two traction platforms (4) are set inside the observation frame (2). The two traction platforms (4) are arranged symmetrically. A lifting mechanism (5) is set between the traction platform (4) at the top and the observation frame (2). Two dual-axis motors (6) are installed inside the traction table (4). Both output ends of the dual-axis motors (6) are equipped with transmission rollers (7). A conveyor belt (8) is sleeved between the two transmission rollers (7) on the same side. Multiple elastic sleeves (9) are provided around the conveyor belt (8). A pressure regulating pipe (10) is provided between the multiple elastic sleeves (9). A pressure regulating mechanism (11) connected to the four pressure regulating pipes (10) is provided inside the machine box (1).

2. The PVC double-pipe traction device according to claim 1, characterized in that, An electric slide rail (12) is installed on one side of the observation frame (2), and a movable frame (13) is slidably fitted on the top of the electric slide rail (12). A laser measuring instrument (14) is installed on one side of the movable frame (13).

3. The PVC double-pipe traction device according to claim 1, characterized in that, The lifting mechanism (5) includes two fixed blocks (15) installed on both sides of the inner wall of the observation frame (2) and two cylinders (16) installed at the bottom of the two fixed blocks (15). The output ends of the two cylinders (16) are connected to the traction platform (4) located at the top.

4. The PVC double-pipe traction device according to claim 1, characterized in that, An electric push rod (17) is installed on one side of the observation frame (2), and a hot melt cutting blade (18) is installed at the output end of the electric push rod (17). The hot melt cutting blade (18) corresponds to the two through slots (3) on the same side.

5. The PVC double-pipe traction device according to claim 1, characterized in that, The chassis (1) has multiple doors (19) that are rotatably fitted on one side, and a handle (20) is installed on one side of each door (19).

6. The PVC double-pipe traction device according to claim 1, characterized in that, The pressure regulating mechanism (11) includes two pressure sources (21) disposed in the housing (1), a connecting pipe (22) disposed at the output end of the pressure source (21), and two channels (23) opened on the top of the housing (1). The connecting pipe (22) passes through the channel (23). One end of the connecting pipe (22) is provided with a fork. Two pressure regulating pipes (10) on the two conveyor belts (8) on the same side are connected to the connecting pipe (22).

7. The PVC double-pipe traction device according to claim 1, characterized in that, The elastic sleeve (9) is provided with a hydraulic chamber, and the top side of the elastic sleeve (9) is recessed in the middle and protruded at both ends to form a limiting groove.

8. The PVC double-pipe traction device according to claim 1, characterized in that, Both sides of the traction platform (4) are equipped with fixed cylinders (24), and both sides of the traction platform (4) are provided with limit plates (25). The limit plates (25) are provided with fixing bolts (26). The fixing bolts (26) are threadedly engaged with the fixed cylinders (24). The two ends of the limit plates (25) are respectively engaged with the two transmission rollers (7) on the same side.

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