A PVC coil calender

Abstract

The present invention discloses a PVC coil calender, comprising a calender box, a motor is fixedly connected to the left side of the calender box, a connecting rod is fixedly connected to the output end of the motor, a first gear and a second gear are fixedly connected to the outer surface of the connecting rod, a feed barrel is fixedly connected to the inner wall of the calender box, a feed port is provided on the upper surface of the feed barrel, a spiral rod is provided inside the feed barrel, a sliding hole matched with the spiral rod is provided on the inner side wall of the feed barrel, and a first bearing is fixedly embedded on the inner side wall of the calender box. The PVC coil calender drives the connecting rod to rotate by the operation of the motor, drives the spiral rod to rotate by the gear connection between the second gear and the third gear, drives the PVC raw material to move by the rotation of the spiral rod, and evenly falls into the gap between the two extrusion rollers through the discharge pipe, so that the product extruded by the extrusion roller is more uniform and the product quality is better.

Description

Technical Field

[0001] The invention relates to the technical field of PVC production products, in particular to a PVC coil calender. Background Art

[0002] PVC material is polyvinyl chloride, which is one of the world's largest-produced plastic products. It is cheap and widely used. Polyvinyl chloride resin is a white or light yellow powder and cannot be used alone. It must be modified. PVC is an amorphous white powder with a small degree of branching and poor stability to light and heat. Different additives can be added according to different uses. Polyvinyl chloride plastics can present different physical and mechanical properties. By adding an appropriate amount of plasticizer to polyvinyl chloride resin, a variety of hard, soft and transparent products can be made. An extruder is required for the production of PVC raw materials. In the existing calender, when extruding PVC raw materials, the PVC raw materials discharged by the feeder are mostly easy to accumulate on the extrusion roller, resulting in material accumulation, which is not convenient for extrusion molding of the extrusion roller and easily reduces the quality of the product. Summary of the invention

[0003] The object of the present invention is to provide a PVC coil calender to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PVC coil calender, comprising a calender box, a motor is fixedly connected to the left side of the calender box, a connecting rod is fixedly connected to the output end of the motor, a first gear and a second gear are fixedly connected to the outer surface of the connecting rod, a feed barrel is fixedly connected to the inner wall of the calender box, a feed port is provided on the upper surface of the feed barrel, a spiral rod is provided inside the feed barrel, a first sliding hole matched with the spiral rod is provided on the inner side wall of the feed barrel, a first bearing is fixedly inlaid on the inner side wall of the calender box, the right end of the spiral rod passes through the first sliding hole and is fixedly connected to the inner ring of the first bearing, a second bearing is fixedly inlaid on the left side of the calender box, and the The left end of the spiral rod passes through the first sliding hole and the second bearing and extends to the left side of the calendering box. The outer surface of the spiral rod is fixedly connected to the third gear matched with the second gear. The bottom surface of the feed barrel is fixedly connected to a discharge pipe arranged at equal distances. Two extrusion rollers are arranged on the left side of the calendering box. The outer surface of each extrusion roller is fixedly connected to the fourth gear matched with the first gear, and each of the fourth gears is meshed with the first gear. A second sliding hole matched with the extrusion roller is provided on the left side of the calendering box. Two third bearings are fixedly embedded in the interior of the calendering box. The right end of each extrusion roller passes through the second sliding hole and is fixedly connected to the inner ring of the third bearing. A discharge port is provided on the front of the calendering box.

[0005] Furthermore, a hot blowing device is provided on the inner wall of the calendering box, and the hot blowing device is located below the discharge pipe, above the extrusion roller, and close to one side of the feed port.

[0006] Furthermore, the hot air blowing device is provided with a swinging air guide plate.

[0007] Furthermore, a swing device is provided on the bottom surface of the feed cylinder corresponding to each discharge pipe.

[0008] Furthermore, the swing device includes a fixed plate fixed to the bottom surface of the feed barrel, and the fixed plate is hinged to the swing plate.

[0009] Furthermore, a feed hopper is provided above the feed cylinder, and the bottom end of the feed hopper is fixedly connected to the top end of the feed port.

[0010] Furthermore, a limit block is provided on the left side of the connecting rod, and the right side surface of the limit block is fixedly connected to the left end of the connecting rod.

[0011] Furthermore, two fixing blocks are fixedly connected to the outer surface of the motor, and the right side surface of each of the fixing blocks is fixedly connected to the left side surface of the calendering box.

[0012] Beneficial Effects

[0013] The present invention has the following beneficial effects: the PVC coil calender can drive the connecting rod to rotate by the motor, and drive the spiral rod to rotate by the gear connection between the second gear and the third gear. The rotation of the spiral rod drives the PVC raw material to move, and evenly falls into the gap between the two extrusion rollers through the discharge pipe, so that the product extruded by the extrusion rollers is more uniform and the product quality is better. The first gear and the second gear can drive the two extrusion rollers to rotate with each other, and the rotating extrusion rollers can more conveniently realize the extrusion of the PVC raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the calendering box of the present invention;

[0015] Figure 2 It is a cross-sectional view of the front view of the calender box of the present invention;

[0016] Figure 3 It is a front view of the calendering box of the present invention;

[0017] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0018] In the figure: 1. calender box; 2. third bearing; 3. second slide hole; 4. first bearing; 5. first slide hole; 6. extrusion roller; 7. discharge pipe; 8. feed barrel; 9. screw rod; 10. feed port; 11. feed hopper; 12. support leg; 13. motor; 14. fourth gear; 15. first gear; 16. second gear; 17. third gear; 18. observation frame; 19. discharge port; 20. limit block; 21. connecting rod; 22. fixed block; 23. second bearing; 24. hot blowing device; 25. air guide plate; 26. fixed plate; 27. swing plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides a technical solution: a PVC coil calender, comprising a calender box 1, a motor 13 is fixedly connected to the left side of the calender box 1, a connecting rod 21 is fixedly connected to the output end of the motor 13, a first gear 15 and a second gear 16 are fixedly connected to the outer surface of the connecting rod 21, a feed barrel 8 is fixedly connected to the inner wall of the calender box 1, a feed port 10 is provided on the upper surface of the feed barrel 8, a screw rod 9 is provided inside the feed barrel 8, a first sliding hole 5 adapted to the screw rod 9 is provided on the inner side wall of the feed barrel 8, a first bearing 4 is fixedly inlaid on the inner side wall of the calender box 1, the right end of the screw rod 9 passes through the first sliding hole 5 and is fixedly connected to the inner ring of the first bearing 4, a second bearing 23 is fixedly inlaid on the left side of the calender box 1, and the left end of the screw rod 9 The end passes through the first slide hole 5 and the second bearing 23 and extends to the left side of the calender box 1. The outer surface of the spiral rod 9 is fixedly connected with the third gear 17 adapted to the second gear 16. The bottom surface of the feed cylinder 8 is fixedly connected with the discharge pipe 7 arranged at equal distances. Two extrusion rollers 6 are arranged on the left side of the calender box 1. The outer surface of each extrusion roller 6 is fixedly connected with the fourth gear 14 adapted to the first gear 15. Each fourth gear 14 is meshed with the first gear 15. The left side of the calender box 1 is provided with a second slide hole 3 adapted to the extrusion roller 6. Two third bearings 2 are fixedly inlaid inside the calender box 1. The right end of each extrusion roller 6 passes through the second slide hole 3 and is fixedly connected to the inner ring of the third bearing 2. The front side of the calender box 1 is provided with a discharge port 19.

[0021] A feed hopper 11 is provided above the feed barrel 8, and the bottom end of the feed hopper 11 is fixedly connected to the top end of the feed port 10, which can make it easier for the staff to discharge the materials and facilitate the work of the staff. A limit block 20 is provided on the left side of the connecting rod 21, and the right side surface of the limit block 20 is fixedly connected to the left end of the connecting rod 21, which can limit the first gear 15 to prevent the first gear 15 and the fourth gear 14 from falling off.

[0022] The raw materials dropped from the feed port 10 enter the feed barrel 8. Due to gravity, more raw materials will drop from the discharge pipe 7 on the left side of the feed barrel 8. Therefore, a hot blowing device 24 is provided on the inner wall of the calender box 1. The hot blowing device 24 is located below the discharge pipe 7, above the extrusion roller 6, and close to the side of the feed port 10. The hot blowing device is provided with a swinging air guide plate 25. The hot blowing device 24 blows air toward the bottom of the discharge pipe 7 to make the dropped raw materials more dispersed and preheat the raw materials at the same time.

[0023] The bottom surface of the feed barrel 8 is provided with a swing device corresponding to each discharge pipe 7, and the swing device includes a fixed plate 26 fixed to the bottom surface of the feed barrel 8, the fixed plate 26 is hinged to a swing plate 27, and the swing plate 27 swings to disperse the raw materials dropped from the discharge pipe 7.

[0024] Two fixing blocks 22 are fixedly connected to the outer surface of the motor 13, and the right side of each fixing block 22 is fixedly connected to the left side of the calender box 1, so that the motor 13 can be clamped and fixed to increase the stability of the motor 13. An observation frame 18 is fixedly inlaid on the front of the calender box 1. The observation frame 18 is located above the discharge port 19, so that the staff can observe the interior of the calender box 1 more easily, and it is convenient for the staff to understand the extrusion of the PVC raw materials. Two groups of supporting legs 12 are provided at the bottom of the calender box 1. The top of each supporting leg 12 is fixedly connected to the bottom surface of the calender box 1, which can support the calender box 1 and increase the stability of the calender box 1.

[0025] It should be noted that the present invention is a PVC coil calender. When the calender box 1 is used to extrude the PVC raw material, the PVC raw material is first poured into the interior of the feed barrel 8 through the feed hopper 11, and then the switch of the motor 13 is turned on to make the motor 13 work and drive the connecting rod 21 to rotate. Through the meshing action between the second gear 16 and the third gear 17, the spiral rod 9 is rotated, and the rotating spiral rod 9 is used to drive the PVC raw material to move to the right, and then it passes through the discharge pipe 7 and falls evenly into the gap between the two extrusion rollers 6. Then, through the meshing action of the first gear 15 and the fourth gear 14, the two extrusion rollers 6 are driven to rotate relative to each other, thereby realizing the extrusion molding of the PVC raw material and discharging it through the discharge port 19.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC coil calender, comprising a calender box (1), characterized in that: The left side surface of the calendering box (1) is fixedly connected to a motor (13), the output end of the motor (13) is fixedly connected to a connecting rod (21), the outer surface of the connecting rod (21) is fixedly connected to a first gear (15) and a second gear (16), the inner wall of the calendering box (1) is fixedly connected to a feed barrel (8), the upper surface of the feed barrel (8) is provided with a feed port (10), a screw rod (9) is provided inside the feed barrel (8), the inner side wall of the feed barrel (8) is provided with a first sliding hole (5) adapted to the screw rod (9), the inner side wall of the calendering box (1) is fixedly inlaid with a first bearing (4), the right end of the screw rod (9) passes through the first sliding hole (5) and is fixedly connected to the inner ring of the first bearing (4), the left side surface of the calendering box (1) is fixedly inlaid with a second bearing (23), the left end of the screw rod (9) passes through the first sliding hole (5) and the second bearing (23) and extends to the left side of the calender box (1), the outer surface of the spiral rod (9) is fixedly connected to a third gear (17) adapted to the second gear (16), the bottom surface of the feed cylinder (8) is fixedly connected to a discharge pipe (7) arranged at an equal distance, two squeezing rollers (6) are arranged on the left side of the calender box (1), the outer surface of each squeezing roller (6) is fixedly connected to a fourth gear (14) adapted to the first gear (15), and each fourth gear (14) is meshed with the first gear (15), the left side of the calender box (1) is provided with a second slide hole (3) adapted to the squeezing roller (6), the interior of the calender box (1) is fixedly inlaid with two third bearings (2), the right end of each squeezing roller (6) passes through the second slide hole (3) and is fixedly connected to the inner ring of the third bearing (2), and the front of the calender box (1) is provided with a discharge port (19); The inner wall of the calender box (1) is provided with a hot blowing device (24), and the hot blowing device (24) is located below the discharge pipe (7), above the squeezing roller (6), and close to the feed port (10); The hot air blowing device (24) is provided with a swinging air guide plate (25); The bottom surface of the feed cylinder (8) is provided with a swing device corresponding to each discharge pipe (7); The swing device comprises a fixed plate (26) fixed to the bottom surface of the feed barrel (8), and the fixed plate is hinged to a swing plate (27); The raw materials dropped from the feed port (10) enter the feed barrel (8), and due to gravity, more raw materials will drop from the discharge pipe (7) on the left side of the feed barrel (8).

2. A PVC coil calender according to claim 1, characterized in that: A feed hopper (11) is provided above the feed cylinder (8), and the bottom end of the feed hopper (11) is fixedly connected to the top end of the feed port (10).

3. A PVC coil calender according to claim 1, characterized in that: A limit block (20) is provided on the left side of the connecting rod (21), and the right side surface of the limit block (20) is fixedly connected to the left end of the connecting rod (21).

4. A PVC coil calender according to claim 1, characterized in that: Two fixed blocks (22) are fixedly connected to the outer surface of the motor (13), and the right side surface of each fixed block (22) is fixedly connected to the left side surface of the calender box (1).

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