Foamed plastic packing material pre-foaming device

Abstract

The utility model relates to a foamed plastic packing material pre-foaming device which comprises a foaming cylinder, a rotating shaft and stirring rollers circumferentially distributed outside the rotating shaft, the multiple stirring rollers are sleeved with cleaning rings, a fixing rod is fixedly connected between every two longitudinally-adjacent cleaning rings, and a lower connecting rod is fixedly connected to the exterior of the topmost cleaning ring. Upper connecting rods are fixedly connected to the top ends of the lower connecting rods, an air cylinder is installed above a feeding port of the foaming barrel, a circular push plate is rotationally connected to the telescopic end of the air cylinder, and push rods are rotationally connected between the multiple upper connecting rods and the three-fork bottom plate. And meanwhile, a plurality of fixing rods are matched, a plurality of cleaning rings can be driven to move outside the corresponding stirring rollers, synchronous cleaning of the multiple stirring rollers is completed, the cleaning steps are effectively simplified, the cleaning efficiency is improved, and convenience is brought to workers.

Description

Technical Field

[0001] The present application relates to the technical field of pre-foaming, and in particular to a pre-foaming device for foam plastic packaging materials. Background Art

[0002] Polystyrene foam is a light polymer. It is made of polystyrene resin with a foaming agent added, and heated to soften it, generating gas to form a rigid closed-cell foam plastic. EPS processing generally goes through several processes, including pre-foaming, rounding and molding. During the pre-foaming process, the polymer particles containing the foaming agent soften under heating conditions, and the foaming agent evaporates. The existing EPS foam plastic packaging material pre-foaming device will stir the material inside the foaming cylinder through a stirring roller to make the material evenly heated. However, during the cooling process, some of the material will adhere to the stirring roller, and it is difficult and time-consuming to clean it up.

[0003] According to the announcement CN218700706U, the utility model discloses a novel EPS foam plastic packaging material pre-foaming device, including a foaming cylinder, a fixing ring is fixedly connected to the side wall of the foaming cylinder, a plurality of supporting rings are fixedly connected to the supporting roller, a plurality of stirring rollers are fixedly connected to the side wall of the supporting ring, and a cleaning ring is slidably connected to the stirring roller. By arranging the cleaning ring, the utility model can quickly clean up the foam plastic attached to the stirring roller by sliding the cleaning ring when the foam plastic is cooled and the material is taken out.

[0004] However, the packaging material pre-foaming device in the above patent requires processing personnel to slide multiple cleaning rings on the stirring roller in sequence to quickly clean up the attached foam plastics. The entire cleaning process is too cumbersome and brings inconvenience to the staff. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present application provides a foam plastic packaging material pre-foaming device.

[0006] The foam plastic packaging material pre-foaming device provided in this application adopts the following technical solution:

[0007] A foam plastic packaging material pre-foaming device comprises a foaming cylinder and a rotating shaft and stirring rollers circumferentially distributed outside the rotating shaft, a plurality of the stirring rollers are sleeved with cleaning rings on the outside, a fixing rod is fixedly connected between two longitudinally adjacent cleaning rings, a lower connecting rod is fixedly connected to the outside of the cleaning ring at the top, an upper connecting rod is fixedly connected to the top end of the lower connecting rod, a cylinder is installed above the foaming cylinder feed port, a circular push plate is rotatably connected to the telescopic end of the cylinder, and push rods are rotatably connected between a plurality of the upper connecting rods and the circular push plates.

[0008] Preferably, a three-pronged bottom plate is fixedly connected to the bottom of the foaming tube, a driving motor is installed on the lower surface of the three-pronged bottom plate, and an output end of the driving motor passes through the inside of the three-pronged bottom plate and is fixed to the bottom end of the rotating shaft.

[0009] Preferably, an annular plate is fixedly connected to the outer edge of the foaming tube feed port, four support rods are equiangularly distributed on the upper surface of the annular plate, a top plate is fixedly connected between the tops of the four support rods, and the cylinder is fixed to the lower surface of the top plate.

[0010] Preferably, a fixing ring sleeve is fixedly connected to the lower part of the outside of the foaming tube, and support legs are fixed to the outer ring of the fixing ring sleeve at equal angles.

[0011] Preferably, the foam tube discharge port is equipped with three discharge door panels that are adapted to the outer contour size of the three-pronged bottom plate.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. Only by using the cylinder to push the circular push plate downward, change the inclination angle of the push rod in multiple directions, drive the upper connecting rod and the lower connecting rod to move. At the same time, with the cooperation of several fixed rods, it can drive several cleaning rings to move outside the corresponding stirring rollers, complete the synchronous cleaning of multiple stirring rollers, effectively simplify the cleaning steps, improve the cleaning efficiency, and bring convenience to the staff.

[0014] 2. By rotating a circular push plate connected to the telescopic end of the cylinder, the circular push plate and the push rod as well as the upper connecting rod and the lower connecting rod can rotate synchronously with the rotating shaft and the stirring roller to ensure normal stirring of the material inside the foaming tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the main body of the foaming device of the present application;

[0016] Figure 2 It is a schematic structural diagram of a cross-section of the foam tube of the present application;

[0017] Figure 3 This application Figure 2 A partial enlarged structural diagram;

[0018] Figure 4 It is a structural schematic diagram of the detailed connection between the rotating shaft and the cleaning ring of the present application.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. top plate; 2. support rod; 3. annular plate; 4. foaming tube; 5. support leg; 6. driving motor; 7. fixing ring sleeve; 8. upper connecting rod; 9. rotating shaft; 10. stirring roller; 11. lower connecting rod; 12. fixing rod; 13. cleaning ring; 14. unloading door panel; 15. three-pronged bottom plate; 16. circular push plate; 17. cylinder; 18. push rod. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1-Figure 4 As shown, the present application discloses a foam plastic packaging material pre-foaming device, including a foaming cylinder 4 and a rotating shaft 9 and stirring rollers 10 circumferentially distributed outside the rotating shaft 9. The rotating shaft 9 and a plurality of stirring rollers 10 are rotated inside the foaming cylinder 4 to achieve stirring of the material inside the foaming cylinder 4, so that it is evenly heated. The outsides of the plurality of stirring rollers 10 are all sleeved with cleaning rings 13, and a fixing rod 12 is fixedly connected between two longitudinally adjacent cleaning rings 13. The fixing rod 12 facilitates the synchronous movement of a plurality of cleaning rings 13 in the same longitudinal direction, and the outside of the cleaning ring 13 at the top is fixedly connected with a lower connecting rod. 11, the top of the lower connecting rod 11 is fixedly connected to the upper connecting rod 8, and a cylinder 17 is installed above the feeding port of the foaming tube 4. The telescopic end of the cylinder 17 is rotatably connected to the circular push plate 16, and a push rod 18 is rotatably connected between the upper connecting rods 8 and the circular push plates 16. Only by starting the cylinder 17, the circular push plates 16 are pushed downward to change the inclination angles of the push rods 18 in multiple directions. Then the bottom end of the push rod 18 can drive the upper connecting rod 8 and the lower connecting rod 11 to move, and cooperate with a plurality of fixed rods 12 to drive a plurality of cleaning rings 13 to move outside the corresponding stirring rollers 10, so as to complete the synchronous cleaning of the plurality of stirring rollers 10;

[0022] At the same time, the cylinder 17 in the unactivated state can ensure the stability of the cleaning rings 13 sleeved on the outside of the stirring roller 10. In addition, the circular push plate 16 and the push rod 18 as well as the upper connecting rod 8 and the lower connecting rod 11 can rotate synchronously with the rotating shaft 9 and the stirring roller 10 to avoid affecting the normal stirring of the material inside the foaming tube 4.

[0023] like Figure 1 and Figure 2 as well as Figure 4As shown, a three-pronged bottom plate 15 is fixedly connected to the bottom of the foaming tube 4, and a driving motor 6 is installed on the lower surface of the three-pronged bottom plate 15. The output end of the driving motor 6 passes through the inside of the three-pronged bottom plate 15 and is fixed to the bottom end of the rotating shaft 9. By starting the driving motor 6, the output end of the driving motor 6 can drive the rotating shaft 9 and the stirring roller 10 to rotate inside the foaming tube 4, thereby realizing the stirring of the material inside the foaming tube 4 and facilitating its uniform heating.

[0024] like Figure 1-Figure 3 As shown, an annular plate 3 is fixedly connected to the outer edge of the feed port of the foaming tube 4, four support rods 2 are distributed at equal angles on the upper surface of the annular plate 3, a top plate 1 is fixedly connected between the tops of the four support rods 2, and a cylinder 17 is fixed to the lower surface of the top plate 1, which is convenient for the staff to add materials from the feed port of the foaming tube 4 and ensures the stability of the cylinder 17 installed above the feed port of the foaming tube 4.

[0025] like Figure 1 and Figure 2 As shown, a fixed ring sleeve 7 is fixedly connected to the lower part of the outside of the foaming tube 4, and support legs 5 are fixed at equal angles on the outer circle of the fixed ring sleeve 7 to provide support below the foaming tube 4 and ensure the overall stability of the device.

[0026] like Figure 2 As shown, three discharge door panels 14 matching the outer contour of the three-pronged bottom plate 15 are installed at the discharge port of the foaming tube 4. The three foaming tubes 4 cooperate with the three-pronged bottom plate 15 to facilitate the storage and discharge of materials inside the foaming tube 4.

[0027] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] The implementation principle of the foam plastic packaging material pre-foaming device of the embodiment of the present application is: when it is necessary to clean the plastic foam attached to the outside of several stirring rollers 10, start the cylinder 17, and then the telescopic end of the cylinder 17 pushes the circular push plate 16 downward, and then the circular push plate 16 moves downward, so that the inclination angle of the push rod 18 changes accordingly, and then the bottom of the push rod 18 can drive the upper connecting rod 8 to move horizontally, and then the upper connecting rod 8 drives the lower connecting rod 11 to move synchronously, and then the lower connecting rod 11 can cooperate with several fixed rods 12 to synchronously drive several cleaning rings 13 to move outside the corresponding stirring rollers 10, so as to complete the synchronous cleaning of several stirring rollers 10.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A foam plastic packaging material pre-foaming device, comprising a foaming cylinder (4), a rotating shaft (9), and stirring rollers (10) circumferentially distributed outside the rotating shaft (9), characterized in that: A cleaning ring (13) is sleeved on the outside of the plurality of stirring rollers (10), a fixing rod (12) is fixedly connected between two adjacent cleaning rings (13) in the longitudinal direction, a lower connecting rod (11) is fixedly connected to the outside of the cleaning ring (13) at the top, an upper connecting rod (8) is fixedly connected to the top of the lower connecting rod (11), a cylinder (17) is installed above the feed port of the foaming tube (4), a circular push plate (16) is rotatably connected to the telescopic end of the cylinder (17), and a push rod (18) is rotatably connected between the plurality of upper connecting rods (8) and the circular push plate (16).

2. The foam plastic packaging material pre-foaming device according to claim 1, characterized in that: The bottom of the foaming tube (4) is fixedly connected to a three-pronged bottom plate (15), a driving motor (6) is installed on the lower surface of the three-pronged bottom plate (15), and the output end of the driving motor (6) passes through the inside of the three-pronged bottom plate (15) and is fixed to the bottom end of the rotating shaft (9).

3. The foam plastic packaging material pre-foaming device according to claim 1, characterized in that: The outer edge of the feed port of the foaming cylinder (4) is fixedly connected to an annular plate (3), four support rods (2) are distributed at equal angles on the upper surface of the annular plate (3), a top plate (1) is fixedly connected between the tops of the four support rods (2), and the cylinder (17) is fixed to the lower surface of the top plate (1).

4. The foam plastic packaging material pre-foaming device according to claim 1, characterized in that: A fixing ring sleeve (7) is fixedly connected to the lower part of the outside of the foaming tube (4), and a supporting leg (5) is fixedly disposed on the outer ring of the fixing ring sleeve (7) at an equal angle.

5. The foam plastic packaging material pre-foaming device according to claim 1, characterized in that: The discharge port of the foaming cylinder (4) is provided with three discharge door panels (14) which are matched to the outer contour size of the three-pronged bottom plate (15).

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