Traction machine for PVC production

Abstract

The utility model relates to PVC production equipment technical field discloses a traction machine for PVC production, including the chassis, a plurality of door type support are fixedly installed on the chassis, the lower part rotatable mounting of door type support has lower traction roller, the top fixed connection of door type support has the mounting panel, the rotating joint of mounting panel has the rotating sleeve, the screw rod is screw -threaded in the rotating sleeve, the bottom fixed connection of screw rod has the lifting plate, the both sides fixed connection of lifting plate has the movable plate, the rotatable mounting of movable plate has upper traction roller, the fixed installation of rotating sleeve has the linkage synchronous wheel, and the linkage synchronous wheel between two adjacent rotating sleeves is connected with the synchronous belt. In the utility model, linkage structure is adopted to adjust lower traction roller simultaneously, and the adjustment mode is more quick and convenient, simplifies the adjustment operation, and avoids the error when adjusting alone.

Description

Technical Field

[0001] This utility model belongs to the technical field of PVC production equipment, specifically a traction machine for PVC production. Background Technology

[0002] In PVC extrusion production, a traction machine is needed to pull the PVC extruded material. For example, a temperature-controlled traction machine for PVC pipe production, disclosed in announcement number CN217144626U, includes a base and a worktable mounted on the base. The worktable is hollow, and a support plate is provided on the base. An air box is mounted on the support plate, and a control motor is located behind the air box on the support plate. The output end of the control motor passes through the air box, and fan blades are provided on the portion of the control motor's output end located inside the air box.

[0003] In actual use, the applicant found that when adjusting the distance between the upper and lower traction rollers, personnel need to manually rotate and adjust them one by one, which is troublesome. Moreover, when adjusting the height, the position of each upper traction roller is prone to deviation. In order to solve the above problems, a traction machine for PVC production is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a traction machine for PVC production in order to solve the problems mentioned above.

[0005] The technical solution adopted by this utility model is as follows: A traction machine for PVC production includes a base frame, on which several portal-shaped brackets are fixedly installed. A lower traction roller is rotatably installed on the lower part of the portal-shaped brackets. A mounting plate is fixedly connected to the top of the portal-shaped brackets. A rotating sleeve is rotatably connected to the mounting plate. A screw is internally threaded to the rotating sleeve. A lifting plate is fixedly connected to the bottom of the screw. Movable plates are fixedly connected to both ends of the lifting plate. An upper traction roller is rotatably installed on the movable plate. A linkage synchronous wheel is fixedly installed on the rotating sleeve. A synchronous belt connects the linkage synchronous wheels on two adjacent rotating sleeves.

[0006] In a preferred embodiment, a driven pulley is fixedly connected to one side of the lower traction roller on the leftmost gantry bracket, a motor is fixedly installed on the lower part of the base frame, a main pulley is fixedly connected to the output shaft of the motor, and a belt connects the main pulley and the driven pulley.

[0007] In a preferred embodiment, a linkage pulley is fixedly connected to one side of the lower traction roller, and a belt is connected between the linkage pulleys on two adjacent portal brackets.

[0008] In a preferred embodiment, grooves are provided on the two vertical side plates of the portal bracket, and guide grooves are fixedly connected to the two inner walls of the grooves. Guide bars are constructed on both sides of the movable plate, and the guide bars are adapted to slide and guide the guide grooves.

[0009] In a preferred embodiment, a handwheel is fixedly connected to the rotating sleeve on the leftmost gantry bracket.

[0010] In a preferred embodiment, a tensioning mechanism is connected to the synchronous belt. The tensioning mechanism includes a fixed frame, which is fixedly mounted on the mounting plates of two adjacent portal brackets. A lead screw is threaded onto the fixed frame, and one end of the lead screw is rotatably connected to a wheel frame. A rotatable tensioning synchronous wheel is mounted on the wheel frame, and the tensioning synchronous wheel is engaged with the synchronous belt. A guide rod is fixedly connected to the wheel frame, and the guide rod is slidably connected to the fixed frame through a guide.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, rotating one of the rotating sleeves causes the linkage synchronous wheel to rotate. The linkage synchronous wheel drives the rotating sleeves on other portal brackets to rotate via a synchronous belt. At this time, the rotating sleeves on all portal brackets will rotate simultaneously, thereby causing the screws on each portal bracket to move down simultaneously, thereby causing the movable plates on both sides of the lifting plate to move down, thereby causing the upper traction rollers to move down. This allows for the simultaneous adjustment of the distance between all the upper traction rollers and their corresponding lower traction rollers to adapt to the thickness of the PVC sheet. The entire adjustment method is faster and more convenient, simplifies the adjustment operation, and avoids errors that occur when adjusting individually. Attached Figure Description

[0012] Figure 1 This is a simplified schematic diagram of the three-dimensional structure of this utility model; Figure 2 This is a simplified schematic diagram of the rear view structure of this utility model; Figure 3 This is a simplified three-dimensional structural diagram of the movable plate in this utility model; Figure 4 This is a simplified three-dimensional structural diagram of the tensioning mechanism in this utility model.

[0013] The markings in the diagram are: 1-base frame; 2-gantry bracket; 3-lower traction roller; 4-mounting plate; 5-swivel sleeve; 6-screw; 7-lifting plate; 8-moving plate; 9-upper traction roller; 10-linkage synchronous pulley; 11-synchronous belt; 12-driven pulley; 13-motor; 14-main pulley; 15-belt one; 16-linkage pulley; 17-belt two; 18-groove; 19-guide groove; 20-guide bar; 21-handwheel; 22-tensioning mechanism; 23-fixed frame; 24-screw; 25-wheel frame; 26-tensioning synchronous pulley; 27-guide rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] The following will combine Figures 1-4 A traction machine for PVC production according to an embodiment of the present invention will be described in detail.

[0016] Example

[0017] This utility model provides a traction machine for PVC production, see reference. Figures 1 to 4 As shown, it includes a base frame 1, on which several portal-shaped brackets 2 are fixedly installed. A lower traction roller 3 is rotatably installed on the lower part of the portal-shaped bracket 2. A mounting plate 4 is fixedly connected to the top of the portal-shaped bracket 2. A rotating sleeve 5 is rotatably connected to the mounting plate 4. A screw 6 is internally threaded to the rotating sleeve 5. A lifting plate 7 is fixedly connected to the bottom of the screw 6. Movable plates 8 are fixedly connected to both ends of the lifting plate 7. An upper traction roller 9 is rotatably installed on the movable plate 8. A linkage synchronous wheel 10 is fixedly installed on the rotating sleeve 5. A synchronous belt 11 is connected between the linkage synchronous wheels 10 on two adjacent rotating sleeves 5. In this embodiment, the PVC sheet is pulled by the upper traction roller 9 and the lower traction roller 3. In actual use, by rotating one of the rotating sleeves 5, the rotating sleeve 5 drives the linkage synchronous wheel 10 to rotate. The linkage synchronous wheel 10 drives the rotating sleeves 5 on other portal brackets 2 to rotate via the synchronous belt 11. At this time, the rotating sleeves 5 on all portal brackets 2 will rotate simultaneously, thereby driving the screws 6 on each portal bracket 2 to move down simultaneously, thereby driving the movable plates 8 on both sides of the lifting plate 7 to move down, thereby driving the upper traction rollers 9 to move down, and thus simultaneously adjusting the distance between all the upper traction rollers 9 and their corresponding lower traction rollers 3 to adapt to the thickness of the PVC sheet. The whole adjustment method is faster and more convenient, simplifies the adjustment operation, and avoids errors when adjusting individually.

[0018] refer to Figures 1 to 4 As shown, a driven pulley 12 is fixedly connected to one side of the lower traction roller 3 on the leftmost portal frame 2. A motor 13 is fixedly installed on the lower part of the base frame 1. A main pulley 14 is fixedly connected to the output shaft of the motor 13. A belt 15 is connected between the main pulley 14 and the driven pulley 12. A linkage pulley 16 is fixedly connected to one side of the lower traction roller 3. A belt 2 17 is connected between the linkage pulleys 16 on two adjacent portal frames 2. In this embodiment, the starting motor 13 drives the main pulley 14 to rotate. The main pulley 14 drives the driven pulley 12 to rotate through the belt 15, thereby driving the leftmost lower traction roller 3 to rotate. At this time, the other lower traction rollers 3 are driven to rotate through the belt 2 17 and the linkage pulley 16, thereby increasing the traction power.

[0019] refer to Figures 1 to 4 As shown, grooves 18 are provided on the vertical side plates of both sides of the portal bracket 2. Guide grooves 19 are fixedly connected to the two inner walls of the grooves 18. Guide bars 20 are constructed on both sides of the movable plate 8. The guide bars 20 and the guide grooves 19 are adapted to slide and guide each other. In this structure, the guide bars 20 and the guide grooves 19 are used to guide the up and down movement of the upper traction roller 9.

[0020] refer to Figures 1 to 4 As shown, a handwheel 21 is fixedly connected to the rotating sleeve 5 on the leftmost gate-shaped bracket 2. In this structure, the handwheel 21 is used to facilitate the rotation of the leftmost rotating sleeve 5, thereby facilitating rotation and adjustment.

[0021] refer to Figures 1 to 4 As shown, a tensioning mechanism 22 is connected to the synchronous belt 11. The tensioning mechanism 22 includes a fixed frame 23, which is fixedly installed on the mounting plates 4 on two adjacent portal brackets 2. A lead screw 24 is threaded onto the fixed frame 23. One end of the lead screw 24 is rotatably connected to a wheel frame 25. A rotatable tensioning synchronous wheel 26 is installed on the wheel frame 25. The tensioning synchronous wheel 26 is meshed with the synchronous belt 11. A guide rod 27 is fixedly connected to the wheel frame 25. The guide rod 27 and the fixed frame 23 are slidably connected through the guide rod 27. In this structure, rotating the lead screw 24 drives the wheel frame 25 to move under the guidance of the guide rod 27, thereby driving the tensioning synchronous wheel 26 to tension the synchronous belt 11.

[0022] The implementation principle of a PVC production traction machine according to an embodiment of this application is as follows: In use, by rotating one of the rotating sleeves 5, the rotating sleeve 5 drives the linkage synchronous wheel 10 to rotate. The linkage synchronous wheel 10 drives the rotating sleeves 5 on other portal frame 2 to rotate through the synchronous belt 11. At this time, the rotating sleeves 5 on all portal frame 2 will rotate simultaneously, thereby driving the screw 6 on each portal frame 2 to move down simultaneously, thereby driving the movable plates 8 on both sides of the lifting plate 7 to move down, thereby driving the upper traction roller 9 to move down. At the same time, the distance between all the upper traction rollers 9 and their corresponding lower traction rollers 3 is adjusted to adapt to the thickness of the PVC sheet. Then, when traction is performed, the starting motor 13 drives the main pulley 14 to rotate. The main pulley 14 drives the driven pulley 12 to rotate through the first belt 15, thereby driving the leftmost lower traction roller 3 to rotate. At this time, the other lower traction rollers 3 are driven to rotate through the second belt 17 and the linkage pulley 16, thereby traction of the PVC sheet.

[0023] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A traction machine for PVC production, comprising a base frame (1), characterized in that: Several portal frame brackets (2) are fixedly installed on the base frame (1). A lower traction roller (3) is rotatably installed on the lower part of the portal frame bracket (2). An installation plate (4) is fixedly connected to the top of the portal frame bracket (2). A rotating sleeve (5) is rotatably connected to the installation plate (4). A screw (6) is threadedly connected to the rotating sleeve (5). A lifting plate (7) is fixedly connected to the bottom of the screw (6). Movable plates (8) are fixedly connected to both sides of the lifting plate (7). An upper traction roller (9) is rotatably installed on the movable plate (8). A linkage synchronous wheel (10) is fixedly installed on the rotating sleeve (5). A synchronous belt (11) is connected between the linkage synchronous wheels (10) on two adjacent rotating sleeves (5).

2. The traction machine for PVC production as described in claim 1, characterized in that: A pulley (12) is fixedly connected to one side of the lower traction roller (3) on the leftmost gantry bracket (2). A motor (13) is fixedly installed on the lower part of the base frame (1). A main pulley (14) is fixedly connected to the output shaft of the motor (13). A belt (15) is connected between the main pulley (14) and the pulley (12).

3. The traction machine for PVC production as described in claim 1, characterized in that: A linkage pulley (16) is fixedly connected to one side of the lower traction roller (3), and a belt (17) is connected between the linkage pulleys (16) on two adjacent portal brackets (2).

4. The traction machine for PVC production as described in claim 1, characterized in that: The two vertical side plates of the portal bracket (2) are provided with grooves (18), and guide grooves (19) are fixedly connected to the two inner walls of the grooves (18). Guide bars (20) are constructed on both sides of the movable plate (8), and the guide bars (20) are adapted to slide and guide the guide grooves (19).

5. A traction machine for PVC production as described in claim 1, characterized in that: A handwheel (21) is fixedly connected to the rotating sleeve (5) on the leftmost gate-shaped bracket (2).

6. A traction machine for PVC production as described in claim 1, characterized in that: A tensioning mechanism (22) is connected to the synchronous belt (11). The tensioning mechanism (22) includes a fixed frame (23). The fixed frame (23) is fixedly installed on the mounting plate (4) on two adjacent portal brackets (2). A lead screw (24) is threaded onto the fixed frame (23). One end of the lead screw (24) is rotatably connected to a wheel frame (25). A rotatable tensioning synchronous wheel (26) is installed on the wheel frame (25). The tensioning synchronous wheel (26) is meshed with the synchronous belt (11). A guide rod (27) is fixedly connected to the wheel frame (25). The guide rod (27) is slidably connected to the fixed frame (23) through a guide.

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