A blow molding apparatus capable of rapidly switching molds

Abstract

The utility model relates to a blow molding equipment that can switch moulds quickly belongs to blow molding processing technical field, this blow molding equipment that can switch moulds quickly, including base, the top fixedly connected with blow molding mechanism of base, the top fixedly connected with electric skid platform of base, electric skid platform is electrically connected with controller, the sliding connection has the slide of electric skid platform, the top fixedly connected with fixed plate of slide, and fixed plate is installed with switching mechanism. The utility model through the cooperation of switching motor, pivot and switching frame, when needing to replace blow molding mould, switching motor is started through controller, makes switching motor work ninety degrees, one hundred and eighty degrees or two hundred and seventy degrees, can rotate the blow molding mould that needs to use to the just below of extruder, has realized the quick replacement of blow molding mould when not needing to disassemble blow molding mould, has conveniently carried out blow molding processing to the PC lamp shade of different shape, has lightened the burden of personnel, has improved processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of blow molding technology, specifically relating to a blow molding equipment that can quickly switch molds. Background Technology

[0002] Blow molding of PC lampshades is a common plastic molding process, particularly suitable for producing hollow, complex-shaped lampshades that require good light transmission, impact resistance, and high temperature resistance. Polycarbonate (PC) is an ideal material for high-end lampshades (such as automotive headlights, indoor lighting, and outdoor lighting fixtures) due to its excellent properties. The following is the process of PC lampshade blow molding: Extrusion blow molding: Process: Dry PC granules → melt and plasticize in an extruder → extrude a tubular preform → the mold closes and clamps the preform → compressed air is blown into the preform to make it expand and fit the mold cavity → cooling and solidification → opening the mold and removing the product → trimming flash; Injection blow molding: Process: Dry PC granules → injection molding machine injects molten plastic into the preform mold to form a bottomed preform → the preform is transferred to the blow mold with the mandrel → the mold closes, and compressed air is introduced into the mandrel to inflate the preform → cooling and solidification → opening the mold and removing the product → trimming.

[0003] Currently, existing blow molding equipment generally only has one mold, which can only be used to blow mold PC lampshades of one shape. When it is necessary to blow mold PC lampshades of another shape, the blow molding mold needs to be changed, which increases the processing burden and affects the production efficiency of PC lampshades. Based on this, a blow molding equipment that can quickly switch molds is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a blow molding device with a simple structure and reasonable design that can quickly switch molds in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A blow molding machine capable of quickly switching molds includes a base, a blow molding mechanism fixedly connected to the top of the base, a controller fixedly connected to the top of the base, an electric slide fixedly connected to the top of the base, the electric slide being electrically connected to the controller, a slide plate slidably connected to the electric slide, a fixed plate fixedly connected to the top of the slide plate, a switching mechanism mounted on the fixed plate, and the slide plate slidably connected to the top of the base.

[0007] As a further optimization of this utility model, the blow molding mechanism includes a fixed frame fixedly connected to the top of the base, a lifting motor fixedly connected to the top of the fixed frame, the lifting motor being electrically connected to a controller, a lifting screw fixedly connected to the output end of the lifting motor, a lifting plate threaded through the lifting screw, a high-pressure air pump fixedly connected to the top of the lifting plate, the high-pressure air pump being electrically connected to the controller, an air inlet pipe fixedly connected to the suction end of the high-pressure air pump, and a blow molding pipe fixedly connected to the exhaust end of the high-pressure air pump.

[0008] As a further optimization of this utility model, the lifting screw passes through the fixed frame and is rotatably connected to the fixed frame, and the lifting screw is rotatably connected to the top of the base.

[0009] As a further optimization of this utility model, the blow molding tube passes through the lifting plate and is fixedly connected to the lifting plate, and the outer surface of the lifting plate is in contact with the inner surface of the fixing frame.

[0010] As a further optimization of this utility model, the switching mechanism includes a switching motor fixedly connected to one side of the fixed plate. The switching motor is electrically connected to the controller. A rotating shaft is fixedly connected to the output end of the switching motor. A switching frame is fixedly connected to the outer surface of the rotating shaft. An electric telescopic rod is fixedly connected to the switching frame. The electric telescopic rod is electrically connected to the controller. A blow molding die is fixedly connected to the output end of the electric telescopic rod by bolts.

[0011] As a further optimization of this utility model, the rotating shaft passes through the fixed plate and is rotatably connected to the fixed plate, and the blow molding mold is slidably connected to the inner surface of the switching frame.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention utilizes a switching motor, a rotating shaft, and a switching frame. When a blow molding die needs to be changed, the controller activates the switching motor, which operates at 90, 180, or 270 degrees. This allows the required blow molding die to be rotated directly below the extruder, enabling rapid die replacement without disassembling the die. This facilitates blow molding of PC lampshades of different shapes, reduces the workload for personnel, and improves processing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the back of this utility model;

[0016] Figure 3This is a schematic diagram of the overall three-dimensional structure of this utility model from a bottom view;

[0017] Figure 4 This is a three-dimensional structural diagram of the switching mechanism of this utility model.

[0018] In the diagram: 1. Base; 2. Fixing frame; 3. Lifting motor; 4. Lifting screw; 5. Lifting plate; 6. High-pressure air pump; 7. Air inlet pipe; 8. Blow molding tube; 9. Controller; 10. Electric slide table; 11. Slide plate; 12. Fixing plate; 13. Switching motor; 14. Rotating shaft; 15. Switching frame; 16. Electric telescopic rod; 17. Blow molding mold. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a blow molding machine capable of rapid mold switching includes a base 1, with a blow molding mechanism fixedly connected to the top of the base 1. The base 1 is installed below the tubular preform discharge end of the extruder. The blow molding mechanism includes a fixed frame 2 fixedly connected to the top of the base 1, a lifting motor 3 fixedly connected to the top of the fixed frame 2, the lifting motor 3 being electrically connected to a controller 9, a lifting screw 4 fixedly connected to the output end of the lifting motor 3, the lifting screw 4 passing through the fixed frame 2 and rotatably connected to the fixed frame 2, the lifting screw 4 being rotatably connected to the top of the base 1, and a lifting plate 5 threadedly connected to the lifting screw 4. The outer surface of the lifting plate 5 is flush with the fixed frame 2. The inner surface is fitted together. A high-pressure air pump 6 is fixedly connected to the top of the lifting plate 5. The high-pressure air pump 6 is electrically connected to the controller 9. An air inlet pipe 7 is fixedly connected to the suction end of the high-pressure air pump 6. A blow molding pipe 8 is fixedly connected to the exhaust end of the high-pressure air pump 6. The blow molding pipe 8 passes through the lifting plate 5 and is fixedly connected to the lifting plate 5. A controller 9 is fixedly connected to the top of the base 1. An electric slide table 10 is fixedly connected to the top of the base 1. The electric slide table 10 is electrically connected to the controller 9. A slide plate 11 is slidably connected to the electric slide table 10. A fixed plate 12 is fixedly connected to the top of the slide plate 11. A switching mechanism is installed on the fixed plate 12. The slide plate 11 is slidably connected to the top of the base 1.

[0021] In use, first, start the switching mechanism to rotate the corresponding mold to be directly below the tubular parison discharge end of the extruder. After the extruder extrudes the parison, start the switching mechanism to clamp the parison with the mold. At this time, the extruder can cut the parison. Then, start the electric slide table 10 to move the slide plate 11 directly below the blow molding tube 8. When the mold with the parison reaches directly below the blow molding tube 8, start the lifting motor 3 to rotate the lifting screw 4. Then, under the rotation of the lifting screw 4, the lifting plate 5 moves downward along the inner surface of the fixed frame 2, so that the blow molding tube 8 is inserted into the parison. Then, start the high-pressure air pump 6 to inject high-pressure gas into the parison through the blow molding tube 8, so that the parison is completely attached to the mold. After injecting high-pressure gas, maintain the pressure for a certain time, then turn off the high-pressure air pump 6. Start the lifting motor 3 again to rotate the lifting screw 4. Then, under the rotation of the lifting screw 4, the lifting plate 5 moves upward along the inner surface of the fixed frame 2, so that the blow molding tube 8 is pulled out of the parison.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the switching mechanism includes a switching motor 13 fixedly connected to one side of the fixed plate 12. The switching motor 13 is electrically connected to the controller 9. The output end of the switching motor 13 is fixedly connected to a rotating shaft 14. The rotating shaft 14 passes through the fixed plate 12 and is rotatably connected to the fixed plate 12. A switching frame 15 is fixedly connected to the outer surface of the rotating shaft 14. An electric telescopic rod 16 is fixedly connected to the switching frame 15. The electric telescopic rod 16 is electrically connected to the controller 9. The output end of the electric telescopic rod 16 is fixedly connected to a blow molding mold 17 by bolts. The blow molding mold 17 is slidably connected to the inner surface of the switching frame 15. The contact surfaces of the blow molding mold 17, which are located on the same axis, are sealed and fitted together.

[0023] In use, the switching motor 13 is started, operating at 90, 180, or 270 degrees. The operation of the switching motor 13 will drive the rotating shaft 14 to rotate, which in turn drives the switching frame 15 to rotate, rotating the corresponding blow molding die 17 directly below the extruder's tubular preform discharge end. After the extruder discharges a fixed-length tubular preform, the electric telescopic rod 16 is activated to bring the blow molding dies 17 closer together, sealing and clamping the tubular preform. The extruder can then cut the tubular preform. At this time, the electric slide table 10 is activated, causing the slide plate 11 to slide towards the blow molding tube 8 until the blow molding die 17, which is sealing and clamping the tubular preform, reaches the blow molding tube 8. Directly below, the blow molding tube 8 is inserted into the tubular preform within the blow molding mold 17 that holds the tubular preform, and high-pressure gas is injected, causing the tubular preform to adhere tightly to the inner surface of the blow molding mold 17 to prepare the PC lampshade. After maintaining pressure for a certain period of time, the blow molding tube 8 is pulled out of the prepared PC lampshade. At this time, the electric telescopic rod 16 is activated to move the blow molding mold 17 holding the tubular preform away from each other, so that the prepared PC lampshade can be removed from the blow molding mold 17. This allows for quick replacement of the blow molding mold 17 without disassembling it, facilitating the blow molding of PC lampshades of different shapes, reducing the burden on personnel, and improving processing efficiency.

[0024] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A blow molding apparatus capable of rapid mold changeover, comprising a base (1), characterized in that: A blow molding mechanism is fixedly connected to the top of the base (1), a controller (9) is fixedly connected to the top of the base (1), an electric slide (10) is fixedly connected to the top of the base (1), the electric slide (10) is electrically connected to the controller (9), a slide plate (11) is slidably connected to the electric slide (10), a fixing plate (12) is fixedly connected to the top of the slide plate (11), a switching mechanism is installed on the fixing plate (12), and the slide plate (11) is slidably connected to the top of the base (1).

2. A blow molding apparatus capable of quick mold change according to claim 1, characterized in that: The blow molding mechanism includes a fixed frame (2) fixedly connected to the top of the base (1). A lifting motor (3) is fixedly connected to the top of the fixed frame (2). The lifting motor (3) is electrically connected to the controller (9). A lifting screw (4) is fixedly connected to the output end of the lifting motor (3). A lifting plate (5) is threaded through the lifting screw (4). A high-pressure air pump (6) is fixedly connected to the top of the lifting plate (5). The high-pressure air pump (6) is electrically connected to the controller (9). An air inlet pipe (7) is fixedly connected to the suction end of the high-pressure air pump (6). A blow molding pipe (8) is fixedly connected to the exhaust end of the high-pressure air pump (6).

3. A blow molding apparatus capable of quick mold change according to claim 2, characterized in that: The lifting screw (4) passes through the fixed frame (2) and is rotatably connected to the fixed frame (2). The lifting screw (4) is rotatably connected to the top of the base (1).

4. A blow molding apparatus capable of quick mold change according to claim 2, characterized in that: The blow molding tube (8) passes through the lifting plate (5) and is fixedly connected to the lifting plate (5). The outer surface of the lifting plate (5) is in contact with the inner surface of the fixing frame (2).

5. The blow molding apparatus capable of quickly switching molds according to claim 1, characterized in that: The switching mechanism includes a switching motor (13) fixedly connected to one side of the fixed plate (12). The switching motor (13) is electrically connected to the controller (9). The output end of the switching motor (13) is fixedly connected to a rotating shaft (14). The outer surface of the rotating shaft (14) is fixedly connected to a switching frame (15). An electric telescopic rod (16) is fixedly connected to the switching frame (15). The electric telescopic rod (16) is electrically connected to the controller (9). The output end of the electric telescopic rod (16) is fixedly connected to a blow molding mold (17) by bolts.

6. A blow molding equipment capable of rapid mold switching according to claim 5, characterized in that: The rotating shaft (14) passes through the fixed plate (12) and is rotatably connected to the fixed plate (12), and the blow molding mold (17) is slidably connected to the inner surface of the switching frame (15).

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