Blow molding machine blow molding and cooling device

Abstract

The utility model is used for blow molding machine technical field discloses blow molding machine blow molding forming cooling device, including blow molding machine body, the one side of blow molding machine body is provided with the discharge frame, the outer surface of mounting panel is provided with cooling discharge mechanism, through the displacement flow transfer mode after blow molding piece forms, makes blow molding piece to be able to carry out stripping and the operation of discharging again after completely cooling, to guarantee blow molding machine according to the complete of shape. The blow molding machine blow molding forming cooling device, the cooling seat fixed mounting is in the discharge frame inner side surface below mounting panel, and its lower end is connected the air outlet of cooling fan, when blow molding piece forms, the cooling airflow generated by cooling fan directly acts on the blow molding piece in forming mould through cooling seat, realizes the pertinence cooling, and the disc rotates under the drive of center motor, and the displacement of forming mould is pushed by cooperation die -electric push rod, makes blow molding piece flow transfer according to predetermined path after forming, ensures that it is discharged again through guide chute stripping after completely cooling.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically to a blow molding cooling device for blow molding machines. Background Technology

[0002] Blow molding, as an important process in the plastics processing field, is widely used in the manufacture of various hollow plastic parts, such as plastic bottles, barrels, and cans. In the blow molding process, the cooling device plays a crucial role, which directly affects the quality of blow-molded parts, production efficiency, and production costs.

[0003] Currently, existing blow molding cooling devices for blow molding machines have many problems that urgently need to be solved in practical applications. On the one hand, the cooling effect of many cooling devices is not ideal, and they cannot ensure that the blow molded parts are cooled sufficiently and evenly after molding. This leads to the blow molded parts being prone to deformation and shrinkage during demolding and unloading because they have not been fully cooled and shaped. This seriously affects the integrity of the shape and dimensional accuracy of the blow molded parts, and reduces the product qualification rate. On the other hand, some cooling devices have low cooling efficiency, and the blow molded parts need a long time to complete the cooling process. This not only prolongs the production cycle and reduces production efficiency, but also increases energy consumption and production costs.

[0004] Therefore, how to design a blow molding cooling device for blow molding machines that can effectively improve cooling effect and efficiency, ensure the integrity of the blow molded part shape, and has a reasonable structure, convenient operation, and high degree of automation has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for blow molding machines to solve the problems mentioned in the background art, such as unsatisfactory cooling effect leading to deformation of blow molded parts and low cooling efficiency affecting production cycle and energy consumption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blow molding cooling device for a blow molding machine, including a blow molding machine body, a discharge rack on one side of the blow molding machine body, an mounting plate fixedly installed on the upper end of the discharge rack, and a cooling discharge mechanism on the outer surface of the mounting plate. By means of displacement and flow after the blow molding of the part, the blow molding part can be demolded and unloaded after it has been completely cooled, so as to ensure the integrity of the shape of the blow molding machine.

[0007] The cooling discharge mechanism includes: a clearance groove formed on the upper surface of the mounting plate; a displacement seat fixedly mounted on the upper end of the discharge rack; a lifting electric push rod fixedly mounted on the upper surface of the displacement seat; a mold head fixedly mounted on the lower end of the lifting electric push rod; a central motor fixedly mounted on the upper surface of the mounting plate; a turntable fixedly connected to the lower end of the output shaft of the central motor; a mold closing electric push rod fixedly mounted on the lower surface of the turntable; a forming mold fixedly connected to one end of the mold closing electric push rod; a pressure box fixedly mounted on the upper surface of the mounting plate; pressure electric push rods fixedly mounted on the upper surfaces of the mounting plates on both sides of the pressure box; and piston blocks fixedly mounted on the upper ends of the pressure electric push rods.

[0008] The cooling discharge mechanism further includes a cooling seat, which is fixedly installed on the inner surface of the discharge rack below the mounting plate. The lower end of the cooling seat is connected to the air outlet of a cooling fan, and the cooling fan is fixedly installed on the inner surface of the discharge rack. A guide groove is fixedly provided on the inner surface of the discharge rack directly below the pressure box.

[0009] Preferably, the forming mold and the relief groove are configured in a one-to-one correspondence, and the forming mold is located directly below the relief groove.

[0010] By adopting the above technical solution, the positional correspondence between the forming mold and the relief groove can be guaranteed, ensuring the accuracy of the moving path of the forming mold during the cooling process, and providing a guarantee for the accuracy of subsequent demolding and unloading operations.

[0011] Preferably, the molding mold is a split design, and the upper surfaces of the two molding molds are in contact with the lower surface of the turntable.

[0012] The above technical solution facilitates the mold closing and opening operations of the molding mold. The design of the two molding molds fitting into the lower surface of the turntable ensures the stability of the molding mold as it rotates with the turntable, thus ensuring the reliable operation of the blow molding process.

[0013] Preferably, the pressure box is located directly above the relief groove on one side, and the lower end of the pressure box is connected to the relief groove.

[0014] By adopting the above technical solution, the pressure box can accurately correspond to the clearance groove and the molding mold below, ensuring that the pressure generated in the pressure box can be smoothly transmitted to the molding mold, thereby pushing the blow molded part out of the molding mold and ensuring the smooth demolding operation.

[0015] Preferably, the outer surface of the piston block is in contact with the inner surface of the pressure box, and the piston block and the pressure box are connected by sliding friction.

[0016] By adopting the above technical solution, the sealing performance of the piston block when sliding in the pressure box can be guaranteed, preventing pressure leakage, thereby ensuring that a stable pressure can be formed in the pressure box, so that the blow-molded part can be smoothly pushed out of the molding die.

[0017] Preferably, the upper surface of the cooling seat is connected to the lower surface of the molding die, and the inner bottom surface of the guide groove is inclined downward toward the outside of the discharge rack.

[0018] By adopting the above technical solution, the design of connecting the cooling seat with the lower surface of the molding mold allows the cooling airflow generated by the cooling fan to directly act on the blow-molded part inside the molding mold, improving the cooling efficiency and uniformity. The downward-sloping bottom surface of the guide groove can use gravity to smoothly guide the blow-molded part out, avoiding the accumulation of blow-molded parts and ensuring smooth material discharge.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the blow molding cooling device of the blow molding machine:

[0020] 1. The cooling seat is fixedly installed on the inner surface of the discharge rack below the mounting plate. Its lower end is connected to the air outlet of the cooling fan. After the blow-molded part is formed, the cooling airflow generated by the cooling fan acts directly on the blow-molded part in the forming mold through the cooling seat to achieve targeted cooling. At the same time, the central motor drives the turntable to rotate, which, together with the mold closing electric push rod, pushes the forming mold to move, so that the blow-molded part flows along a predetermined path after forming. This ensures that it is completely cooled before being demolded and discharged through the guide groove, avoiding the problems of deformation and shrinkage of blow-molded parts caused by insufficient cooling in the existing technology. The design of the forming mold and the relief groove corresponding one-to-one and located directly below it ensures the accuracy of the cooling process and effectively improves the product qualification rate.

[0021] 2. By using a pressurized electric push rod to drive the piston block to slide down in the pressure box to generate differential pressure, the pressure box can push the injection molded part into the mold after the mold is opened through the pressure. The inclined surface of the bottom surface of the guide channel can smoothly guide the injection molded part out, avoiding the accumulation of injection molded parts and the resulting material discharge obstruction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the blow molding machine body and the discharge rack of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram showing the connection between the discharge rack, cooling seat, and cooling fan of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the displacement seat, lifting electric push rod, and mold head connection of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the turntable, the electric push rod for mold closing, and the forming mold of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the pressure box, the pressure electric push rod, and the piston block of this utility model.

[0028] In the diagram: 1. Blow molding machine body; 2. Discharge rack; 3. Mounting plate; 4. Clearance groove; 5. Displacement seat; 6. Lifting electric push rod; 7. Die head; 8. Center motor; 9. Turntable; 10. Mold closing electric push rod; 11. Forming mold; 12. Pressure box; 13. Pressure electric push rod; 14. Piston block; 15. Cooling seat; 16. Cooling fan; 17. Material guide groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution: a blow molding cooling device for blow molding machines.

[0031] Example 1: This example discloses a blow molding machine body 1, a discharge rack 2 on one side of the blow molding machine body 1, an mounting plate 3 fixedly installed on the upper end of the discharge rack 2, and a cooling discharge mechanism on the outer surface of the mounting plate 3. By means of displacement and flow after the blow molding part is formed, the blow molding part can be demolded and unloaded after it has been completely cooled, so as to ensure the integrity of the shape of the blow molding machine.

[0032] The cooling discharge mechanism includes: a clearance groove 4, which is opened on the upper surface of the mounting plate 3; a displacement seat 5 is fixedly installed on the upper end of the discharge rack 2; a lifting electric push rod 6 is fixedly installed on the upper surface of the displacement seat 5; a mold head 7 is fixedly installed on the lower end of the lifting electric push rod 6; a central motor 8 is fixedly installed on the upper surface of the mounting plate 3; a turntable 9 is fixedly connected to the lower end of the output shaft of the central motor 8; a mold closing electric push rod 10 is fixedly installed on the lower surface of the turntable 9; a forming mold 11 is fixedly connected to one end of the mold closing electric push rod 10; a pressure box 12 is fixedly installed on the upper surface of the mounting plate 3; a pressure electric push rod 13 is fixedly installed on the upper surface of the mounting plate 3 on both sides of the pressure box 12; and a piston block 14 is fixedly installed on the upper end of the pressure electric push rod 13.

[0033] The molding mold 11 and the relief groove 4 are set in a one-to-one correspondence, and the molding mold 11 is located directly below the relief groove 4;

[0034] The molding mold 11 is a split design, and the upper surfaces of the two molding molds 11 are in contact with the lower surface of the turntable 9;

[0035] The pressure box 12 is located directly above the side relief groove 4, and the lower end of the pressure box 12 is connected to the relief groove 4.

[0036] The outer surface of the piston block 14 is in contact with the inner surface of the pressure box 12, and the piston block 14 and the pressure box 12 are connected by sliding friction.

[0037] The central motor 8 on the upper surface of the mounting plate 3 starts, driving the turntable 9 to rotate, so that the forming mold 11 moves with the turntable 9 to directly below the mold head 7. The mold closing electric push rod 10 pushes the forming mold 11 to close, and the displacement seat 5 drives the mold head 7 to move down through the lifting electric push rod 6. The blow molding machine body 1 on one side of the discharge rack 2 extrudes the material and cooperates with the mold head 7 to complete the blow molding. The forming mold 11 corresponds one-to-one with the relief groove 4 and is located directly below it, ensuring the accuracy of the subsequent cooling and demolding path.

[0038] After molding and cooling, the turntable 9 is rotated to directly below the pressure box 12. At this time, the pressure electric push rod 13 pushes the piston block 14 downward, generating pressure in the pressure box 12. The pressure is transmitted through the pressure box 12 to the molding mold 11 below, pushing the blow molded part out of the molding mold 11 which is opened by the mold closing electric push rod 10. The piston block 14 slides and rubs against the pressure box 12 to ensure the stability of pressure transmission and avoid leakage.

[0039] Example 2: This example discloses, based on Example 1, that the cooling discharge mechanism further includes a cooling seat 15, which is fixedly installed on the inner surface of the discharge rack 2 below the mounting plate 3, and the lower end of the cooling seat 15 is connected to the air outlet of the cooling fan 16, and the cooling fan 16 is fixedly installed on the inner surface of the discharge rack 2. A guide groove 17 is fixedly provided on the inner surface of the discharge rack 2 directly below the pressure box 12.

[0040] The upper surface of the cooling seat 15 is connected to the lower surface of the molding die 11, and the inner bottom surface of the guide groove 17 is set at an angle downward towards the outside of the discharge rack 2.

[0041] When the cooling fan 16 is started, the generated cooling airflow is blown directly onto the blow-molded part in the molding mold 11 through the air outlet of the cooling seat 15. The central motor 8 drives the turntable 9 to rotate, so that the molding mold 11 passes under the cooling seat 15 in sequence, realizing continuous cooling of the blow-molded part. The cooling seat 15 is connected to the lower surface of the molding mold 11 to ensure that the cooling airflow is accurately applied to the blow-molded part, improving the uniformity and efficiency of cooling.

[0042] After the blow-molded part is cooled and shaped, the pressurized electric push rod 13 pushes the piston block 14 to push the blow-molded part out of the molding mold 11 by pressure. The blow-molded part falls into the guide groove 17. The bottom surface of the guide groove 17 is designed to be inclined downward, so that the blow-molded part can be smoothly discharged to the outside of the discharge rack 2 by gravity.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blow molding cooling device for a blow molding machine, comprising a blow molding machine body (1), wherein a discharge rack (2) is provided on one side of the blow molding machine body (1), characterized in that: The upper end of the discharge rack (2) is fixedly installed with a mounting plate (3). The outer surface of the mounting plate (3) is provided with a cooling discharge mechanism. By means of displacement and flow after the blow molding, the blow molded part can be demolded and unloaded after it is completely cooled, so as to ensure the integrity of the shape of the blow molding machine. The cooling discharge mechanism includes: a clearance groove (4), which is opened on the upper surface of the mounting plate (3); a displacement seat (5) is fixedly installed on the upper end of the discharge rack (2); a lifting electric push rod (6) is fixedly installed on the upper surface of the displacement seat (5); a mold head (7) is fixedly installed on the lower end of the lifting electric push rod (6); a central motor (8) is fixedly installed on the upper surface of the mounting plate (3); a turntable (9) is fixedly connected to the lower end of the output shaft of the central motor (8); a mold closing electric push rod (10) is fixedly installed on the lower surface of the turntable (9); a forming mold (11) is fixedly connected to one end of the mold closing electric push rod (10); a pressure box (12) is fixedly installed on the upper surface of the mounting plate (3); a pressure electric push rod (13) is fixedly installed on the upper surface of the mounting plate (3) on both sides of the pressure box (12); and a piston block (14) is fixedly installed on the upper end of the pressure electric push rod (13).

2. The blow molding cooling device for a blow molding machine according to claim 1, characterized in that: The cooling discharge mechanism further includes a cooling seat (15), which is fixedly installed on the inner surface of the discharge rack (2) below the mounting plate (3). The lower end of the cooling seat (15) is connected to the air outlet of the cooling fan (16), and the cooling fan (16) is fixedly installed on the inner surface of the discharge rack (2). A guide groove (17) is fixedly provided on the inner surface of the discharge rack (2) directly below the pressure box (12).

3. The blow molding cooling device for a blow molding machine according to claim 1, characterized in that: The forming mold (11) and the relief groove (4) are set in a one-to-one correspondence, and the forming mold (11) is located directly below the relief groove (4).

4. The blow molding cooling device for a blow molding machine according to claim 1, characterized in that: The molding mold (11) is a split design, and the upper surfaces of the two molding molds (11) are in contact with the lower surface of the turntable (9).

5. The blow molding cooling device for a blow molding machine according to claim 1, characterized in that: The pressure box (12) is located directly above the side relief groove (4), and the lower end of the pressure box (12) is connected to the relief groove (4).

6. The blow molding cooling device for a blow molding machine according to claim 1, characterized in that: The outer surface of the piston block (14) is in contact with the inner surface of the pressure box (12), and the piston block (14) and the pressure box (12) are connected by sliding friction.

7. The blow molding cooling device for a blow molding machine according to claim 2, characterized in that: The upper surface of the cooling seat (15) is connected to the lower surface of the molding mold (11), and the inner bottom surface of the guide groove (17) is set obliquely downward towards the outside of the discharge rack (2).

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