Blow molding device for pc barrel production

Abstract

The utility model discloses a blow molding device for pc barrel production, which comprises two racks, a working table is fixedly arranged at the upper ends of the racks, mounting racks are fixedly arranged at the front end and the rear end of the upper end of the working table, a sliding chute is arranged in one end, close to the center position of the working table, of each mounting rack, and the sliding chute is of an opening structure. Mould bodies are arranged on the two sides between the mounting frames at the front end and the rear end, mounting plates are fixedly arranged on the two sides, located on the outer sides of the mould bodies, of the mounting frames, hydraulic telescopic devices are fixedly arranged on one sides of the mounting plates, and the telescopic ends of the hydraulic telescopic devices extend to the other sides of the mounting plates and are fixedly connected with the mould bodies. The structure solves the problems that the PC barrel blow molding mold is not flexible enough to move, and the demolding efficiency of the blow molding device is not high enough.

Description

Technical Field

[0001] The utility model relates to the technical field of PC barrel production, in particular to a blow molding device for PC barrel production. Background Art

[0002] The blow molding machine for PC barrel production is a device specifically designed for producing PC buckets and similar containers. The blow molding machine forms thermoplastics into the desired hollow product through a series of steps: melting, extrusion, and blow molding. When using the blow molding machine, PC raw material is first added to the blow molding machine, where it is melted into liquid plastic by a heating system. The molten plastic is then extruded through an extruder and formed into a tubular parison through a die head. The parison is then placed in a mold and inflated with high-pressure gas, forcing it to adhere to the mold's inner wall to form the desired shape and size. Finally, the molded product is cooled in the mold and released from the mold after reaching a certain hardness.

[0003] For example, the Chinese patent "A blow molding device for plastic barrel production" with announcement number CN113306118A includes an equipment frame and a blow molding tube. A spiral feed barrel is provided on the top of the equipment frame, and a spiral conveying shaft is provided inside the spiral feed barrel. The spirals at both ends of the spiral conveying shaft are arranged in opposite directions. Isolation plates are provided on both sides of the middle part of the spiral feed barrel. A first bevel gear is fixedly sleeved on a section of the surface of the bolt conveying shaft located between the two isolation plates. A drive motor is provided on the middle surface of the spiral feed barrel. One end of the rotating shaft of the drive motor extends to the inside of the spiral feed barrel and is connected to a second bevel gear, wherein the second bevel gear is meshed with the first bevel gear.

[0004] Although the above-mentioned existing technology can realize the blow molding of PC barrels, in actual use, on the one hand, the movement of the PC barrel blow molding mold is not flexible enough. In the process of PC barrel production, the same hole is used for injection and blow molding. After the injection is completed, the operator connects the blow molding tube to the mold and performs blow molding. As a result, each operation requires human assistance, thereby reducing the flexibility of the PC barrel mold. On the other hand, the demolding efficiency of the blow molding device is not high enough. After the PC barrel is blow molded, it needs to wait for it to cool naturally to a certain temperature before demolding. As a result, each PC barrel needs to wait for it to cool down before demolding, which affects the production efficiency of the PC barrel. Therefore, it does not meet the existing needs. In this regard, we propose a blow molding device for PC barrel production. Utility Model Content

[0005] The purpose of the utility model is to provide a blow molding device for PC barrel production, so as to solve the problems proposed in the above background technology that the PC barrel blow molding mold is not flexible enough to move and the demoulding efficiency of the blow molding device is not high enough.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blow molding device for PC barrel production, comprising a frame, two frames are provided, a workbench is fixedly provided on the upper end of the frame, and mounting frames are fixedly provided at the front and rear ends of the upper end of the workbench, a slide is provided inside the end of the mounting frame close to the center of the workbench, and the slide is an open structure, molds are provided on both sides between the front and rear ends of the mounting frames, mounting plates are fixedly provided on both sides of the mounting frame located on the outside of the mold, a hydraulic telescopic device is fixedly provided on one side of the mounting plate, and the telescopic end of the hydraulic telescopic device extends to the other side of the mounting plate and is fixedly connected to the mold.

[0007] Preferably, the front and rear ends of the outside of the mold are fixed with fixing rods, one end of the fixing rods extends to the inside of the slide groove, and the outside of the fixing rods located inside the slide groove is provided with pulleys, which slide in cooperation with the slide groove.

[0008] Preferably, a heat dissipation cavity is provided at the middle position inside the workbench, and air holes are provided at the upper and lower ends of the middle position inside the workbench, and the air holes are connected to the heat dissipation cavity. A second motor is fixedly provided at the middle position of the lower end of the workbench, and the output shaft of the second motor extends to the inside of the heat dissipation cavity. The second motor is located inside the heat dissipation cavity and fan blades are fixedly provided on the outside of the output shaft.

[0009] Preferably, heat dissipation fins are fixedly provided on the lower end and upper and lower parts of the outer side of the mold.

[0010] Preferably, a connecting plate is fixedly provided between the mounting frame located above the mold, an extrusion tube is provided above the connecting plate, two fixing frames are provided on the outside of the extrusion tube, and the lower ends of the fixing frames are fixedly connected to the connecting plate.

[0011] Preferably, a first motor is fixedly provided on one side of the outside of the extrusion tube, and the output shaft of the first motor extends to the inside of the extrusion tube and is rotatably connected to the inner wall of the extrusion tube. The first motor is located inside the extrusion tube and is fixedly provided with spiral blades on the outside of the output shaft. A feed pipe is fixedly provided above one side of the extrusion tube, and the feed pipe is connected to the extrusion tube.

[0012] Preferably, a discharge pipe is fixedly provided on one side of the lower end of the connecting plate, and the discharge pipe is connected to the extrusion pipe. An air blowing pipe is fixedly provided on the other side of the lower end of the connecting plate, and the upper end of the air blowing pipe extends to the top of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can make the mold movement more flexible through the hydraulic telescopic device and the slide. When injecting, the hydraulic telescopic device is first synchronously turned on to extend the telescopic ends of the hydraulic telescopic devices on both sides. The mold is pushed to the middle position of the workbench by the extension of the telescopic ends of the hydraulic telescopic device until the molds on both sides are completely fitted together. At this time, the opening at the upper end of the mold is located directly below the discharge pipe and connected to the discharge pipe. At this time, the injection operation is carried out. When the injection operation is completed, the hydraulic telescopic device is synchronously turned on again to reverse the movement direction of the hydraulic telescopic device. The mold is pushed to one side of the workbench by the hydraulic telescopic device until the mold moves to directly below the blow pipe. At this time, the blow molding operation is carried out, thereby improving the flexibility of the mold movement.

[0015] 2. The utility model can accelerate the heat dissipation of the mold through the heat dissipation fins and fan blades. After the injection is completed, the heat in the raw material is transferred to the mold, and the heat on the mold is transferred to the heat dissipation fins. At the same time, the second motor is turned on, so that the output shaft of the second motor drives the fan blades to rotate. At this time, the air near the fan blades accelerates and forms an airflow. At this time, the airflow generated by the fan blades blows to the surface of the heat dissipation fins through the air holes. At this time, the airflow flows on the surface of the heat dissipation fins. As the airflow flows, the heat on the surface of the heat dissipation fins will be transferred to the molecules in the airflow and diffused into the surrounding environment, realizing effective heat dissipation, thereby accelerating the cooling of the mold and making the PC barrel demolding more convenient.

[0016] 3. The utility model can evenly drive the raw materials for extruding PC barrels through the spiral blades and the first motor. When injecting, the second motor is turned on so that the output shaft of the second motor drives the spiral blades to rotate in the extrusion tube, and the gap between the spiral blades is smaller as they are closer to the outlet. At this time, the melted raw material is poured into the extrusion tube through the feed tube. The raw material entering the extrusion tube is pushed toward the outlet position by the spiral blades, so that the raw material is evenly extruded through the discharge tube, avoiding the situation where there are gaps in the raw material during injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the internal structure of the utility model;

[0018] Figure 2 This is a side view of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the extrusion tube of the utility model;

[0020] Figure 4 For the utility model Figure 1 A partial enlarged view of area A in the middle.

[0021] In the figure: 1. Frame; 2. Workbench; 3. Mounting frame; 4. Connecting plate; 5. Spiral blade; 6. First motor; 7. Extrusion pipe; 8. Discharge pipe; 9. Mounting plate; 10. Hydraulic telescopic device; 11. Fixing rod; 12. Pulley; 13. Mold; 14. Heat dissipation fin; 15. Slide; 16. Air hole; 17. Heat dissipation cavity; 18. Fan blade; 19. Second motor; 20. Fixing frame; 21. Feed pipe; 22. Blowing pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a blow molding device for the production of PC barrels, including a frame 1, two frames 1 are provided, a workbench 2 is fixedly provided on the upper end of the frame 1, and the front and rear ends of the upper end of the workbench 2 are fixedly provided with mounting frames 3, and a slide groove 15 is provided inside the end of the mounting frame 3 close to the center of the workbench 2. The slide groove 15 is an open structure, and molds 13 are provided on both sides between the front and rear end mounting frames 3. Mounting plates 9 are fixedly provided on both sides of the mounting frame 3 located on the outside of the mold 13, and a hydraulic telescopic device 10 is fixedly provided on one side of the mounting plate 9. The telescopic end of the hydraulic telescopic device 10 extends to the other side of the mounting plate 9 and is fixedly connected to the mold 13.

[0024] During use, when injecting, first synchronously open the hydraulic telescopic device 10 to extend the telescopic ends of the hydraulic telescopic devices 10 on both sides, and push the mold 13 to move to the middle position of the workbench 2 through the extension of the telescopic ends of the hydraulic telescopic device 10 until the molds 13 on both sides are completely fitted together. At this time, the opening at the upper end of the mold 13 is located directly below the discharge pipe 8 and is connected to the discharge pipe 8. At this time, the injection operation is carried out. When the injection operation is completed, the hydraulic telescopic device 10 is synchronously opened again to reverse the movement direction of the hydraulic telescopic device 10. The mold 13 is pushed to one side of the workbench 2 by the hydraulic telescopic device 10 until the mold 13 moves to directly below the blow pipe 22. At this time, the blow molding operation is carried out.

[0025] See also Figure 1 and Figure 2 The front and rear ends of the outside of the mold 13 are fixed with fixed rods 11, one end of the fixed rod 11 extends to the inside of the slide groove 15, and the fixed rod 11 is located outside the slide groove 15. A pulley 12 is provided, and the pulley 12 slides with the slide groove 15, so that the mold 13 can move more stably through the pulley 12.

[0026] See also Figure 1 and Figure 2 A heat dissipation cavity 17 is provided at the middle position inside the workbench 2, and air holes 16 are provided at the upper and lower ends of the middle position inside the workbench 2. The air holes 16 are connected to the heat dissipation cavity 17. A second motor 19 is fixedly provided at the middle position of the lower end of the workbench 2, and the output shaft of the second motor 19 extends to the inside of the heat dissipation cavity 17. The second motor 19 is located inside the heat dissipation cavity 17, and fan blades 18 are fixedly provided on the outside of the output shaft, so as to accelerate the air flow and form airflow through the fan blades 18.

[0027] See also Figure 1 and Figure 2 Heat dissipation fins 14 are fixedly provided on the lower end and upper and lower parts of the outer side of the mold 13 to increase the contact area between the mold 13 and the air through the heat dissipation fins 14.

[0028] See also Figure 1 and Figure 2 The mounting frame 3 is located above the mold 13 and a connecting plate 4 is fixedly provided between them. An extrusion tube 7 is provided above the connecting plate 4. Two fixing frames 20 are provided on the outside of the extrusion tube 7. The lower end of the fixing frame 20 is fixedly connected to the connecting plate 4, so that the extrusion tube 7 can be installed and fixed through the fixing frame 20.

[0029] See also Figure 1 A first motor 6 is fixedly provided on one side of the outside of the extrusion tube 7, and the output shaft of the first motor 6 extends to the inside of the extrusion tube 7 and is rotatably connected to the inner wall of the extrusion tube 7. The first motor 6 is located inside the extrusion tube 7 and a spiral blade 5 is fixedly provided on the outside of the output shaft. A feed pipe 21 is fixedly provided above one side of the extrusion tube 7, and the feed pipe 21 is connected to the extrusion tube 7, so that the spiral blade 5 can be driven to rotate by the first motor 6.

[0030] See also Figure 1 A discharge pipe 8 is fixedly provided on one side of the lower end of the connecting plate 4, and the discharge pipe 8 is connected to the extrusion pipe 7. A blowing pipe 22 is fixedly provided on the other side of the lower end of the connecting plate 4, and the upper end of the blowing pipe 22 extends to the top of the connecting plate 4, so as to facilitate the blow molding and injection of the PC barrel through the blowing pipe 22 and the discharge pipe 8.

[0031] Working principle: After the injection is completed, the heat in the raw material is transferred to the mold 13, and the heat on the mold 13 is transferred to the heat dissipation fins 14. At the same time, the second motor 19 is turned on, so that the output shaft of the second motor 19 drives the fan blades 18 to rotate. At this time, the air near the fan blades 18 accelerates and forms an airflow. At this time, the airflow generated by the fan blades 18 blows to the surface of the heat dissipation fins 14 through the air holes 16. At this time, the airflow flows on the surface of the heat dissipation fins 14. As the airflow flows, the heat on the surface of the heat dissipation fins 14 will be transferred to the molecules in the airflow and diffused into the surrounding environment, realizing effective heat dissipation, thereby accelerating the cooling of the mold 13. When injecting, the second motor 19 is turned on at this time, so that the output shaft of the second motor 19 drives the spiral blades 5 to rotate in the extrusion tube 7, and the gap between the spiral blades 5 closer to the outlet is smaller. At this time, the melted raw material is poured into the extrusion tube 7 through the feed pipe 21. The raw material entering the extrusion tube 7 moves toward the outlet position under the push of the spiral blades 5, so that the raw material is evenly extruded through the discharge pipe 8.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A blow molding device for producing PC barrels, comprising a frame (1), two frames (1) are provided, characterized in that: A workbench (2) is fixedly provided at the upper end of the frame (1), and mounting brackets (3) are fixedly provided at the front and rear ends of the upper end of the workbench (2), and a slide groove (15) is provided inside one end of the mounting bracket (3) close to the center of the workbench (2), and the slide groove (15) is an open structure, and molds (13) are provided on both sides between the front and rear ends of the mounting bracket (3), and mounting plates (9) are fixedly provided on both sides of the mounting bracket (3) located outside the mold (13), and a hydraulic telescopic device (10) is fixedly provided on one side of the mounting plate (9), and the telescopic end of the hydraulic telescopic device (10) extends to the other side of the mounting plate (9) and is fixedly connected to the mold (13).

2. A blow molding device for producing PC barrels according to claim 1, characterized in that: The front and rear ends of the exterior of the mold (13) are both fixedly provided with fixed rods (11), one end of the fixed rod (11) extends into the interior of the slide groove (15), and the exterior of the fixed rod (11) located inside the slide groove (15) is provided with a pulley (12), and the pulley (12) is in sliding cooperation with the slide groove (15).

3. A blow molding device for producing PC barrels according to claim 2, characterized in that: A heat dissipation cavity (17) is provided at the middle position inside the workbench (2), and air holes (16) are provided at the upper and lower ends of the middle position inside the workbench (2), and the air holes (16) are communicated with the heat dissipation cavity (17). A second motor (19) is fixedly provided at the middle position of the lower end of the workbench (2), and the output shaft of the second motor (19) extends into the interior of the heat dissipation cavity (17). A fan blade (18) is fixedly provided outside the output shaft of the second motor (19) located inside the heat dissipation cavity (17).

4. A blow molding device for producing PC barrels according to claim 3, characterized in that: Heat dissipation fins (14) are fixedly provided on the lower end and upper and lower parts of the outer side of the mold (13).

5. A blow molding device for producing PC barrels according to claim 4, characterized in that: The mounting frame (3) is located above the mold (13) and a connecting plate (4) is fixedly provided therebetween. An extrusion tube (7) is provided above the connecting plate (4). Two fixing frames (20) are provided on the outside of the extrusion tube (7). The lower ends of the fixing frames (20) are fixedly connected to the connecting plate (4).

6. A blow molding device for producing PC barrels according to claim 5, characterized in that: A first motor (6) is fixedly provided on one side of the outside of the extrusion tube (7), and an output shaft of the first motor (6) extends into the interior of the extrusion tube (7) and is rotatably connected to the inner wall of the extrusion tube (7). A spiral blade (5) is fixedly provided on the outside of the output shaft of the first motor (6) located inside the extrusion tube (7). A feed pipe (21) is fixedly provided above one side of the extrusion tube (7), and the feed pipe (21) is communicated with the extrusion tube (7).

7. A blow molding device for producing PC barrels according to claim 6, characterized in that: A discharge pipe (8) is fixedly provided on one side of the lower end of the connecting plate (4), and the discharge pipe (8) is communicated with the extrusion pipe (7). An air blowing pipe (22) is fixedly provided on the other side of the lower end of the connecting plate (4), and the upper end of the air blowing pipe (22) extends to the top of the connecting plate (4).

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