Online preheater for PP (polypropylene) production

Abstract

The utility model discloses an on-line preheating machine for PP (polypropylene) production. The on-line preheating machine comprises a machine table, an automatic discharging mechanism, a rotating mechanism and a preheating mechanism, support legs are respectively arranged at four corners of the lower end of the machine table; the automatic discharging mechanism comprises a rotating column and a supporting plate, the supporting plate is located in a rectangular groove in the upper end of the machine table, the front side face and the rear side face of the left end of the supporting plate are rotationally connected with the adjacent inner walls of the rectangular groove through the rotating column correspondingly, supporting arms are arranged at the left end and the right end of the upper surface of the supporting plate correspondingly, and supporting plates which are bilaterally symmetrical are arranged in the middle of the upper surface of the supporting plate; the upper ends of the supporting plates are fixedly connected with the bottom end of the outer surface of a container shell. And the rotating mechanism comprises a rotating shaft and a preheating container, rotating columns are rotationally connected to the inner side faces of the supporting arms correspondingly, and according to the on-line preheating machine for PP production, a PP material is turned over and heated in the container. The PP material is heated more evenly, the preheating effect is better, meanwhile, automatic discharging is achieved, and the working efficiency of PP production is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PP production, in particular to an online preheating machine for PP production. Background Art

[0002] PP material is polypropylene, which is a non-toxic, odorless, tasteless milky white highly crystalline polymer with a density of only 0.90-0.91g / cm3, and is one of the lightest varieties of all plastics. It is particularly stable to water, with a water absorption rate of only 0.01% in water and a molecular weight of about 80,000 to 150,000. It has good formability, but due to the large shrinkage rate (1% to 2.5%), thick-walled products are prone to dents, and it is difficult to meet the requirements for some parts with high dimensional accuracy. The surface gloss of the product is good;

[0003] Some existing online preheating machines for PP production put PP materials into a preheating container and preheat them through the heating wires on the inner wall of the container;

[0004] The traditional online preheating machine for PP production has the following problems: when preheating the PP material, the PP material is heated unevenly, which affects the subsequent processing of the PP material and reduces the work efficiency. For this reason, we propose an online preheating machine for PP production. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an online preheating machine for PP production. The PP material is heated while being turned over in the container, so that the heating of the PP material is more uniform and the preheating effect is better. At the same time, automatic unloading is realized, which greatly improves the work efficiency of PP production and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online preheating machine for PP production, comprising a machine platform, an automatic unloading mechanism, a rotating mechanism and a preheating mechanism;

[0007] Machine: The four corners of its lower end are respectively provided with legs;

[0008] Automatic unloading mechanism: It includes a rotating column and a support plate, the support plate is located in a rectangular groove on the upper end of the machine platform, the front and rear side surfaces of the left end of the support plate are rotatably connected to the adjacent inner walls of the rectangular groove through the rotating column, the left and right ends of the upper surface of the support plate are respectively provided with support arms, and the middle part of the upper surface of the support plate is provided with left and right symmetrical support plates, and the upper ends of the support plates are fixedly connected to the bottom end of the outer surface of a container shell;

[0009] Rotating mechanism: It includes a rotating shaft and a preheating container. The inner side surfaces of the support arms are rotatably connected with the rotating shafts respectively. The preheating container is fixedly connected between the two rotating shafts. The outer surface of the preheating container is slidably connected with the inner ring surfaces at the left and right ends of the container shell. A collector ring is sleeved on the middle part of the rotating shaft on the right side. A connecting contact is provided at the upper end of the support arm on the right side. The collector ring is slidably connected with the connecting contact.

[0010] Preheating mechanism: It is set at the right end of the preheating container. The PP material is heated while turning over in the container, so that the PP material is heated more evenly and the preheating effect is better. At the same time, automatic unloading is realized, which greatly improves the PP production efficiency.

[0011] Furthermore, a control switch group is provided at the front end of the left side of the machine, the input end of the control switch group is electrically connected to an external power supply, and the input end of the connection contact is electrically connected to the output end of the control switch group, providing electrical connection for various electrical appliances.

[0012] Furthermore, the automatic unloading mechanism also includes an electric push rod, and a support bar is rotatably connected between the two right legs through a rotating shaft. The electric push rods are respectively arranged at the upper ends of the support bars, and the telescopic ends of the electric push rods are rotatably connected to the U-shaped block at the right end of the lower bottom surface of the support plate through a pin shaft. The input ends of the electric push rods are electrically connected to the output ends of the control switch group to provide unloading drive.

[0013] Furthermore, the rotating mechanism also includes motor 1, pulley 1, pulley 2 and a belt, wherein pulley 2 is fixedly mounted on the right end of the rotating shaft on the right side, motor 1 is arranged on the right end of the upper surface of the support plate, and the right end of the output shaft of motor 1 is fixedly connected with pulley 1, pulley 1 and pulley 2 are connected by belt transmission, and the input end of motor 1 is electrically connected to the output end of the control switch group to provide rotational drive.

[0014] Furthermore, the preheating mechanism includes a circular bracket and a heating rod. The circular bracket is sleeved on the middle part of the rotating shaft on the right side. Evenly distributed heating rods are provided at the edge of the left side of the circular bracket. The left end of the collector ring is fixedly connected to the right side of the circular bracket. The heating rods are all inserted between the outer wall of the preheating container and the inner wall of the container shell. The input end of the heating rod is electrically connected to the output end of the collector ring to achieve rotational heating.

[0015] Furthermore, the preheating mechanism also includes Motor 2, gears and a gear ring. The outer wall of the circular bracket is provided with a gear ring. Motor 2 is arranged in the middle of the right end of the upper surface of the support plate. The right end of the output shaft of Motor 2 is fixedly connected with a gear, and the gear is meshingly connected with the gear ring. The input end of Motor 2 is electrically connected to the output end of the control switch group to provide rotational drive.

[0016] Furthermore, a discharge door is hingedly connected to the inlet and outlet on the left side of the preheating container via a hinge to facilitate loading and unloading of materials.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the online preheating machine for PP production has the following advantages:

[0018] 1. When processing PP material, it is necessary to preheat the PP material. First, open the discharge door, inject the PP material into the preheating container, close the discharge door, and then adjust the control switch group to operate the motor 1, the heating rod and the motor 2 at the same time. When the motor 1 is running, the output shaft of the motor 1 drives the pulley 1 to rotate. The pulley 1 will drive the pulley 2 to rotate through the transmission of the belt. The rotation of the pulley 2 will drive the rotating shaft on the right to rotate. The rotation of the rotating shaft will drive the preheating container to rotate. Then the heating rod and the motor 2 operate at the same time. The output shaft of the motor 2 drives the gear to rotate. The rotation of the gear will drive the meshing gear ring to rotate. The rotation of the gear ring will drive the circular bracket to rotate on the rotating shaft on the right, thereby driving the heating rod to rotate between the outer wall of the preheating container and the inner wall of the container shell, heating the outer wall of the preheating container, and then the PP material inside the preheating container is better heated. The PP material is heated while turning in the container, so that the PP material is heated more evenly and the preheating effect is better.

[0019] 2. After the PP material is preheated, the control switch group is adjusted, and the motor is operated to rotate the discharge door to the position close to the support plate. Then the control switch group is adjusted, and the electric push rods are operated respectively. The telescopic ends of the electric push rods are respectively raised to lift the right end of the support plate. Under the rotation of the rotating column, the left end of the support plate slowly tilts the rotating column. Then place the receiving container at the material port. Then open the discharge door to allow the PP material to flow out, and realize automatic unloading, which greatly improves the PP production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the right side structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above;

[0024] Figure 5 It is a schematic diagram of the front side structure of the utility model.

[0025] In the figure: 1 machine table, 2 legs, 3 automatic unloading mechanism, 31 electric push rod, 32 rotating column, 33 support plate, 4 support arm, 5 rotating mechanism, 51 motor 1, 52 pulley 1, 53 pulley 2, 54 belt, 55 rotating shaft, 56 preheating container, 6 discharge door, 7 support plate, 8 container shell, 9 preheating mechanism, 91 motor 2, 92 gear, 93 gear ring, 94 circular bracket, 95 heating rod, 10 control switch group, 11 collector ring, 12 connecting contact. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , This embodiment provides a technical solution: an online preheating machine for PP production, comprising a machine 1, an automatic unloading mechanism 3, a rotating mechanism 5 and a preheating mechanism 9;

[0028] Machine 1: The four corners of the lower end are provided with legs 2 respectively, and the left front end of the machine 1 is provided with a control switch group 10, the input end of the control switch group 10 is electrically connected to the external power supply, and the input end of the connection contact 12 is electrically connected to the output end of the control switch group 10;

[0029] Automatic unloading mechanism 3: It includes a rotating column 32 and a support plate 33. The support plate 33 is located in a rectangular groove at the upper end of the machine table 1. The front and rear side surfaces of the left end of the support plate 33 are rotatably connected to the adjacent inner walls of the rectangular groove through the rotating column 32 respectively. Support arms 4 are respectively provided at the left and right ends of the upper surface of the support plate 33. A left-right symmetrical support plate 7 is provided in the middle of the upper surface of the support plate 33. The upper ends of the support plates 7 are fixedly connected to the bottom end of the outer surface of a container shell 8. The automatic unloading mechanism 3 also includes an electric push rod 31. A support bar is rotatably connected between the two legs 2 on the right side through a rotating shaft. The electric push rods 31 are respectively arranged at the upper ends of the support bars. The telescopic ends of the electric push rods 31 are rotatably connected to the U-shaped block at the right end of the lower bottom surface of the support plate 33 through a pin shaft. The input ends of the electric push rods 31 are electrically connected to the output end of the control switch group 10. When the PP material is preheated. By regulating the control switch group 10, the motor 1 51 operates to rotate the discharge door 6 to a position close to the support plate 33. Then, the control switch group 10 is regulated to operate the electric push rods 31. The telescopic ends of the electric push rods 31 are respectively raised to lift the right end of the support plate 33. Under the rotation of the rotating column 32, the left end of the support plate 33 slowly tilts the rotating column 32. Then, a receiving container is placed at the material port, and the discharge door 6 is opened to allow the PP material to flow out.

[0030] Rotating mechanism 5: It includes a rotating shaft 55 and a preheating container 56. The inner side surfaces of the support arms 4 are rotatably connected with the rotating shafts 55 respectively. The preheating container 56 is fixedly connected between the two rotating shafts 55. The outer surface of the preheating container 56 is slidably connected to the inner ring surfaces of the left and right ends of the container shell 8. A collector ring 11 is sleeved on the middle part of the rotating shaft 55 on the right side. A connecting contact 12 is provided at the upper end of the support arm 4 on the right side. The collector ring 11 is slidably connected to the connecting contact 12. The rotating mechanism 5 also includes a motor 51, a pulley 52, a pulley 53 and a belt 54. The pulley 53 is fixedly sleeved on the right end of the rotating shaft 55 on the right side. The motor 51 is arranged on the right end of the upper surface of the support plate 33. The right end of the output shaft of the motor 51 is fixedly connected with a pulley 52. ​​The pulley 52 and the pulley The first and second motors 53 are connected by a belt 54, the input end of the motor 1 51 is electrically connected to the output end of the control switch group 10, and a discharge door 6 is hinged at the inlet and outlet of the left side of the preheating container 56 through a hinge. When processing the PP material, the PP material needs to be preheated. First, the discharge door 6 is opened, and the PP material is injected into the preheating container 56, and the discharge door 6 is closed. Then, by regulating the control switch group 10, the motor 1 51, the heating rod 95 and the second motor 91 operate simultaneously. When the motor 1 51 runs, the output shaft of the motor 1 51 drives the pulley 1 52 to rotate, and the pulley 1 52 will drive the pulley 2 53 to rotate through the transmission of the belt 54. The rotation of the pulley 2 53 will drive the rotating shaft 55 on the right to rotate, and the rotation of the rotating shaft 55 will drive the preheating container 56 to rotate;

[0031] Preheating mechanism 9: It is arranged at the right end of the preheating container 56. The preheating mechanism 9 includes a circular bracket 94 and a heating rod 95. The circular bracket 94 is sleeved on the middle part of the rotating shaft 55 on the right side. The left side edge of the circular bracket 94 is provided with uniformly distributed heating rods 95. The left end of the collector ring 11 is fixedly connected to the right side of the circular bracket 94. The heating rods 95 are all inserted between the outer wall of the preheating container 56 and the inner wall of the container shell 8. The input end of the heating rod 95 is electrically connected to the output end of the collector ring 11. The preheating mechanism 9 also includes a motor 91, a gear 92 and a gear ring 93. The outer wall of the circular bracket 94 is provided with a gear ring 93. The motor 91 is arranged at the right end of the upper surface of the support plate 33. In the middle part, the right end of the output shaft of the second motor 91 is fixedly connected with a gear 92, and the gear 92 is meshed with the gear ring 93. The input end of the second motor 91 is electrically connected to the output end of the control switch group 10, and then the heating rod 95 and the second motor 91 operate at the same time, and the output shaft of the second motor 91 drives the gear 92 to rotate. The rotation of the gear 92 will drive the meshed gear ring 93 to rotate, and the rotation of the gear ring 93 will drive the circular bracket 94 to rotate on the rotating column 32 on the right side, thereby driving the heating rod 95 to rotate between the outer wall of the preheating container 56 and the inner wall of the container shell 8, heating the outer wall of the preheating container 56, and thereby the PP material inside the preheating container 56 is better heated.

[0032] The working principle of an online preheating machine for PP production provided by the utility model is as follows: when processing PP material, it is necessary to preheat the PP material, first open the discharge door 6, inject the PP material into the preheating container 56, close the discharge door 6, and then adjust the control switch group 10, the motor 1 51, the heating rod 95 and the motor 2 91 operate at the same time, the motor 1 51 runs, the output shaft of the motor 1 51 drives the pulley 1 52 to rotate, the pulley 1 52 will drive the pulley 2 53 to rotate through the transmission of the belt 54, and the rotation of the pulley 2 53 will drive the rotation of the right side The shaft 55 rotates, and the rotation of the rotating shaft 55 will drive the preheating container 56 to rotate, and then the heating rod 95 and the motor 2 91 operate at the same time, and the output shaft of the motor 2 91 drives the gear 92 to rotate, and the rotation of the gear 92 will drive the meshing gear ring 93 to rotate, and the rotation of the gear ring 93 will drive the circular bracket 94 to rotate on the rotating shaft 55 on the right side, thereby driving the heating rod 95 to rotate between the outer wall of the preheating container 56 and the inner wall of the container shell 8, heating the outer wall of the preheating container 56, and then the PP material inside the preheating container 56 is better heated. When the preheating of the PP material is completed. By adjusting the control switch group 10, the motor 51 operates to rotate the discharge door 6 to the position close to the support plate 33. Then, the control switch group 10 is adjusted, and the electric push rod 31 operates respectively. The telescopic ends of the electric push rod 31 rise respectively to lift the right end of the support plate 33. Under the rotation of the rotating column 32, the left end of the support plate 33 slowly tilts the rotating column 32. Then, a material receiving container is placed at the material inlet, and then the discharge door 6 is opened to allow the PP material to flow out.

[0033] It is worth noting that the electric push rod 31, motor 1 51 and motor 2 91 disclosed in the above embodiments, the electric push rod 31 can all be YMD-606A, the motor 1 51 and the motor 2 91 can all be 5I k12RGU-CF, and the control switch group 10 is provided with switch buttons corresponding to the electric push rod 31, motor 1 51 and motor 2 91 one by one for controlling their switch operations.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An online preheating machine for PP production, characterized in that: It comprises a machine platform (1), an automatic unloading mechanism (3), a rotating mechanism (5) and a preheating mechanism (9); The machine platform (1) has legs (2) at four corners of its lower end; The automatic unloading mechanism (3) comprises a rotating column (32) and a supporting plate (33), wherein the supporting plate (33) is located in a rectangular groove at the upper end of the machine platform (1), and the front and rear side surfaces of the left end of the supporting plate (33) are rotatably connected to the adjacent inner walls of the rectangular groove through the rotating column (32), and the left and right ends of the upper surface of the supporting plate (33) are respectively provided with supporting arms (4), and the middle part of the upper surface of the supporting plate (33) is provided with a left-right symmetrical supporting plate (7), and the upper ends of the supporting plates (7) are fixedly connected to the bottom end of the outer surface of a container shell (8); The rotating mechanism (5) comprises a rotating shaft (55) and a preheating container (56). The inner side surfaces of the support arms (4) are rotatably connected to the rotating shafts (55), the preheating container (56) is fixedly connected between the two rotating shafts (55), the outer surface of the preheating container (56) is slidably connected to the inner ring surfaces at the left and right ends of the container shell (8), a collector ring (11) is sleeved on the middle part of the right rotating shaft (55), a connection contact (12) is provided at the upper end of the right support arm (4), and the collector ring (11) is slidably connected to the connection contact (12); Preheating mechanism (9): It is arranged at the right end of the preheating container (56).

2. The online preheating machine for PP production according to claim 1, characterized in that: A control switch group (10) is provided at the front end of the left side of the machine (1), the input end of the control switch group (10) is electrically connected to an external power supply, and the input end of the connection contact (12) is electrically connected to the output end of the control switch group (10).

3. The online preheating machine for PP production according to claim 2, characterized in that: The automatic unloading mechanism (3) also includes an electric push rod (31), and a support bar is rotatably connected between the two right support legs (2) via a rotating shaft. The electric push rods (31) are respectively arranged at the upper ends of the support bars. The telescopic ends of the electric push rods (31) are rotatably connected to the U-shaped block at the right end of the lower bottom surface of the support plate (33) via a pin shaft, and the input ends of the electric push rods (31) are electrically connected to the output ends of the control switch group (10).

4. The online preheating machine for PP production according to claim 2, characterized in that: The rotating mechanism (5) further comprises a motor (51), a pulley (52), a pulley (53) and a belt (54); the pulley (53) is fixedly sleeved on the right end of the rotating shaft (55) on the right side; the motor (51) is arranged on the right end of the upper surface of the support plate (33); the right end of the output shaft of the motor (51) is fixedly connected with the pulley (52); the pulley (52) and the pulley (53) are connected to each other by a belt (54); the input end of the motor (51) is electrically connected to the output end of the control switch group (10).

5. The online preheating machine for PP production according to claim 2, characterized in that: The preheating mechanism (9) comprises a circular bracket (94) and a heating rod (95). The circular bracket (94) is sleeved on the middle part of the right rotating shaft (55). The left side edge of the circular bracket (94) is provided with uniformly distributed heating rods (95). The left end of the collector ring (11) is fixedly connected to the right side of the circular bracket (94). The heating rods (95) are all inserted between the outer wall of the preheating container (56) and the inner wall of the container shell (8). The input end of the heating rod (95) is electrically connected to the output end of the collector ring (11).

6. The online preheating machine for PP production according to claim 5, characterized in that: The preheating mechanism (9) further comprises a second motor (91), a gear (92) and a gear ring (93); the outer wall of the circular bracket (94) is provided with a gear ring (93); the second motor (91) is arranged at the middle of the right end of the upper surface of the support plate (33); the right end of the output shaft of the second motor (91) is fixedly connected with the gear (92); the gear (92) is meshedly connected with the gear ring (93); the input end of the second motor (91) is electrically connected to the output end of the control switch group (10).

7. The online preheating machine for PP production according to claim 4, characterized in that: A discharge door (6) is hingedly connected to the inlet and outlet of the left side of the preheating container (56) via a hinge.

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