A wind tunnel assembly blow molding device

Abstract

The utility model relates to air duct assembly blow molding technical field, and disclose an air duct assembly blow molding device, including machine body, the inner wall fixed connection of machine body has stable blowing assembly, stable blowing assembly includes fixed mould, the upper and lower both sides fixed connection in the inner wall of machine body of fixed mould, the inner wall right side mounting of machine body has hydraulic pressure rod, and the output end mounting of hydraulic pressure rod has movable mould, and the upper surface of movable mould is connected with the connecting plate through bolt screw thread connection. This air duct assembly blow molding device, through stable blowing assembly, make the device operator when replacing movable mould, only need to remove the bolt between movable mould and connecting plate, after replacing new mould, hydraulic pressure rod pushes movable mould reset, because connecting plate and slider fixed connection, the relative position of movable mould and slider is always invariable, the position of air gun keeps initial alignment air duct corner inner side with slider, need not manual secondary regulation, more conducive to continuous production.

Description

Technical Field

[0001] This utility model relates to the field of blow molding technology for air duct assemblies, specifically to a blow molding device for air duct assemblies. Background Technology

[0002] The blow molding unit for air duct assemblies is a specialized piece of equipment for mass production of ventilation and air conditioning air duct assemblies in the automotive and other fields. Its core process is as follows: the extruder melts plastic raw materials into tubular blanks, which are then transferred into a customized air duct mold. Compressed air is introduced to make the blanks fit the mold cavity. After cooling and solidification, the blanks are demolded. This device can achieve integrated molding of air ducts, reduce splicing links, improve sealing and structural strength, adapt to complex cavity designs, and has high production efficiency.

[0003] However, in actual use, when producing the same model for a long time, the above-mentioned equipment often encounters the situation that the mold overheats and needs to be disassembled and replaced. Under the existing technology, mold replacement often requires readjusting the position and orientation of the air gun, which is mostly done manually. This process is not very precise and can easily lead to inconsistent product specifications due to slight deviations in rotating the air gun, resulting in uneven thickness at corners, which is not conducive to continuous production. In view of this, we propose a blow molding device for an air duct assembly. Summary of the Invention

[0004] The purpose of this invention is to provide a blow molding device for air duct assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blow molding device for an air duct assembly, comprising a body, wherein a stable air blowing component is fixedly connected to the inner wall of the body; The stabilizing air blowing assembly includes a fixed mold, the upper and lower sides of which are fixedly connected to the inner wall of the machine body. A hydraulic rod is installed on the right side of the inner wall of the machine body, and a movable mold is installed at the output end of the hydraulic rod. A connecting plate is threadedly connected to the upper surface of the movable mold by bolts. A slider is fixedly connected to the side of the connecting plate away from the movable mold. The outer wall of the slider is slidably connected to the upper inner wall of the machine body. A connecting rod is fixedly connected to the lower surface of the slider. A support plate is fixedly connected to the lower surface of the connecting rod. Limiting plates are fixedly connected to the upper and lower sides of the left surface of the support plate. A swing plate is threadedly connected to the limiting plate by adjusting bolts. The swing plate is in contact with the opposite side of the two sets of limiting plates. A sliding plate is slidably connected to the inner wall of the swing plate. An air gun is fixedly connected to the inner wall of the sliding plate. A scale line is fixedly connected to the upper surface of the upper set of limiting plates. The outer wall of the sliding plate and the inner wall of the swing plate are detachably connected by a positioning assembly.

[0006] Preferably, the slider is configured as an I-shape, and the inner wall of the machine body is adapted to the slider.

[0007] Preferably, multiple scale lines are provided, and the multiple scale lines are arranged in a circular array with the center line of the limiting plate as the rotation axis.

[0008] Preferably, the positioning component includes slots, which are formed on the upper surface of the swing plate and are in multiple sets, with the multiple sets of slots evenly distributed along the extension direction of the swing plate.

[0009] Preferably, a plug is inserted into the inner wall of the slot, the outer wall of the plug is slidably connected to the inner wall of the sliding plate, a protective box is fixedly connected to the upper surface of the sliding plate, and the outer wall of the plug is slidably connected to the inner wall of the protective box.

[0010] Preferably, a guide rod is fixedly connected to the upper surface of the insert block, and a pull plate is fixedly connected to the upper surface of the guide rod.

[0011] Preferably, the insert block and the protective box are elastically connected by a support spring.

[0012] Compared with the prior art, the present invention provides a blow molding device for air duct assembly, which has the following beneficial effects: 1. The blow molding device for this air duct assembly, through the stable air blowing component, allows the operator to replace the movable mold simply by removing the bolts between the movable mold and the connecting plate. After replacing the mold with a new one, the hydraulic rod pushes the movable mold to reset. Because the connecting plate and the slider are fixedly connected, the relative position of the movable mold and the slider remains unchanged. The air gun maintains its initial alignment with the inside of the air duct corner along with the slider, eliminating the need for manual secondary adjustment and making it more conducive to continuous production.

[0013] 2. This air duct assembly blow molding device, through the positioning component, allows the insert block to be inserted into different slots by pulling the pull plate during use. This causes the air gun to gradually move closer to or away from the moving mold. When dealing with plastic profiles of different materials and densities, for high-density PP plastic, the air gun is adjusted to a position closer to the mold to enhance the blowing force and avoid shrinkage. For low-density PE plastic, the air gun is adjusted to a position slightly further away from the mold to avoid over-blowing. This improves the applicability of the device and speeds up the process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present utility model without cabinet doors; Figure 3 This is a schematic diagram of the stable air blowing component of this utility model; Figure 4 This is a schematic diagram of the positioning component of this utility model; Figure 5 This is a cross-sectional schematic diagram of the positioning component of this utility model.

[0015] In the diagram: 1. Body; 2. Stabilizing air blowing assembly; 3. Hydraulic rod; 4. Positioning assembly; 21. Fixed mold; 22. Movable mold; 23. Connecting plate; 24. Slider; 25. Connecting rod; 26. Support plate; 27. Limiting plate; 28. Adjusting bolt; 29. ​​Swing plate; 210. Air gun; 211. Sliding plate; 212. Scale line; 41. Slot; 42. Protective box; 43. Insert block; 44. Guide rod; 45. Pull plate; 46. Support spring. Detailed Implementation

[0016] like Figures 1-5 As shown, this utility model provides a technical solution: a blow molding device for an air duct assembly, including a body 1 for supporting the overall device, and a stable blowing component 2 for ensuring that the air gun 210 can still be stably aligned with an angle for blowing air after the movable mold 22 is replaced. The stabilizing blow molding assembly 2 includes a fixed mold 21 that cooperates with the movable mold 22 to support one side of the blow molding process. The upper and lower sides of the fixed mold 21 are fixedly connected to the inner wall of the machine body 1. A hydraulic rod 3 is installed on the right side of the inner wall of the machine body 1 to drive the movable mold 22. The output end of the hydraulic rod 3 is connected to the movable mold 22, which cooperates with the fixed mold 21 to form a blow molding space. The upper surface of the movable mold 22 is connected by bolts and threads to a connecting plate 23 to connect the movable mold 22 and a slider 24. A slider 24 is fixedly connected to the side of the connecting plate 23 away from the movable mold 22 to limit the sliding direction of the movable mold 22. The outer wall of the slider 24 is slidably connected to the upper inner wall of the machine body 1. A connecting rod 25 is fixedly connected to the lower surface of the slider 24 to make the movement of the slider 24 synchronously drive the support plate 26 to move. A support plate 26 for supporting the limiting plate 27 is fixedly connected to the lower surface of the connecting rod 25. The left surface of the support plate 26 is fixedly connected to the upper and lower sides of the limiting plate 27 for placing the swing plate 29 to move up and down during the rotation of the adjusting bolt 28. The limiting plate 27 is threadedly connected to the swing plate 29 through the adjusting bolt 28. The swing plate 29 is in contact with the opposite side of the two sets of limiting plates 27. The inner wall of the swing plate 29 is slidably connected to the sliding plate 211 for supporting the air gun 210. The inner wall of the sliding plate 211 is fixedly connected to the air gun 210 for blowing the plastic material and opening holes in the plastic material. The upper surface of the upper set of limiting plates 27 is fixedly connected to the scale line 212 for assisting the operator to observe the rotation angle. The outer wall of the sliding plate 211 and the inner wall of the swing plate 29 are detachably connected to the positioning component 4 for adjusting the position of the sliding plate 211 to adjust the blowing force.

[0017] The limiting plate 27 is threadedly connected to the swing plate 29 via the adjusting bolt 28. The adjusting bolt 28 drives the swing plate 29 to swing while using its self-locking property to keep the swing plate 29 fixed after rotation and adjustment. The swing plate 29 drives the sliding plate 211 to swing, which in turn drives the air gun 210 to swing, thereby adjusting the angle of the air gun 210 to adapt to different blow molding angles. In one embodiment of this utility model, the slider 24 is configured as an I-shape, and the inner wall of the body 1 is adapted to the slider 24, so that the contact between the slider 24 and the body 1 is more stable during the sliding process. At the same time, there is enough space on the lower side to support the connecting rod 25. Multiple scale lines 212 are provided, and the multiple scale lines 212 are arranged in a circular array with the center line of the limiting plate 27 as the rotation axis. When the adjusting bolt 28 drives the swing plate 29 to rotate, the movement angle can be determined according to different scale lines 212. The positioning component 4 includes a slot 41 for accommodating the insert 43. The slots 41 are opened on the upper surface of the swing plate 29 and there are multiple sets. The multiple sets of slots 41 are evenly distributed along the extension direction of the swing plate 29, so that the insert 43 is inserted into different slots 41, thereby driving the sliding plate 211 to be fixed in different positions.

[0018] In an embodiment of this utility model, a plug 43 is inserted into the inner wall of the slot 41 to fix the position of the sliding plate 211. The outer wall of the plug 43 is slidably connected to the inner wall of the sliding plate 211. A protective box 42 for protecting the internal support spring 46 is fixedly connected to the upper surface of the sliding plate 211. The outer wall of the plug 43 is slidably connected to the inner wall of the protective box 42. A guide rod 44 for transmitting force to the plug 43 when the pull plate 45 is pulled is fixedly connected to the upper surface of the plug 43. A pull plate 45 for facilitating the operator to pull the guide rod 44 is fixedly connected to the upper surface of the guide rod 44. The plug 43 and the protective box 42 are elastically connected by a support spring 46 for continuously supporting the plug 43 and making the insertion of the plug 43 into the slot 41 more stable.

[0019] In this invention, when the movable mold 22 needs to be replaced after prolonged use, the bolts connecting the connecting plate 23 and the movable mold 22 can be removed first. At this time, the connecting plate 23 can be pushed freely, avoiding interference with subsequent installation. Then, the new movable mold 22 is connected to the connecting plate 23 with bolts. Since the connecting plate 23 and the slider 24 are fixedly connected, the movement of the slider 24 will synchronously drive the connecting rod 25 and the support plate 26 to move. When the support plate 26 moves, it will pull the adjusting bolt 28 and drive the swing plate 29 to move. During this disassembly and assembly process, the angle of the air gun 210 and its position relative to the movable mold 22 will not change. The operator can restart the hydraulic rod 3 without secondary adjustment, improving the continuity of the device's operation. Simultaneously, when dealing with blow molding operations at different angles, the adjusting bolt 28 can be rotated to rotate the air gun 210. The swing plate 29 rotates. Since the sliding plate 211 and the swing plate 29 are connected by the positioning component 4, the sliding plate 211 drives the swing plate 29 and simultaneously drives the air gun 210 to swing. At the same time, the operator can observe the rotation angle of the adjusting bolt 28 according to the scale line 212, so that the device can be used for different angles and improve the applicability of the device. When dealing with plastic materials of different materials, since most air guns 210 are air compressors that deliver high-pressure gas to many different pipelines, a single air gun 210 usually does not have adjustment capability, and the maximum output will remain at a certain value. At this time, the pull plate 45 can be pulled. Pulling the pull plate 45 will drive the guide rod 44 to move and simultaneously drive the insert block 43 to move, so that the outer wall of the insert block 43 is gradually pulled out from the inner wall of the slot 41, thereby allowing the sliding plate 211 to be pushed. At this time, the sliding plate 211 can be pushed forward or backward, so that plastic materials of different materials can be blow molded stably.

[0020] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A blow molding device for an air duct assembly, comprising a body (1), characterized in that: The inner wall of the body (1) is fixedly connected to a stable air blowing assembly (2); The stable air blowing assembly (2) includes a fixed mold (21), the upper and lower sides of which are fixedly connected to the inner wall of the body (1). A hydraulic rod (3) is installed on the right side of the inner wall of the body (1). A movable mold (22) is installed at the output end of the hydraulic rod (3). A connecting plate (23) is connected to the upper surface of the movable mold (22) by bolt threads. A slider (24) is fixedly connected to the side of the connecting plate (23) away from the movable mold (22). The outer wall of the slider (24) is slidably connected to the upper inner wall of the body (1). A connecting rod (25) is fixedly connected to the lower surface of the slider (24). A support plate (26) is fixedly connected to the surface. Limiting plates (27) are fixedly connected to the upper and lower sides of the left surface of the support plate (26). The limiting plates (27) are threadedly connected to the swing plates (29) by adjusting bolts (28). The swing plates (29) are in contact with the opposite side of the two sets of limiting plates (27). A sliding plate (211) is slidably connected to the inner wall of the swing plates (29). An air gun (210) is fixedly connected to the inner wall of the sliding plate (211). A scale line (212) is fixedly connected to the upper surface of the upper set of limiting plates (27). The outer wall of the sliding plate (211) and the inner wall of the swing plates (29) are detachably connected by a positioning component (4).

2. The blow molding device for an air duct assembly according to claim 1, characterized in that: The slider (24) is configured as an I-shaped structure, and the inner wall of the body (1) is adapted to the slider (24).

3. The blow molding device for an air duct assembly according to claim 1, characterized in that: The scale line (212) is provided in multiple ways, and the multiple scale lines (212) are arranged in a circular array with the center line of the limiting plate (27) as the axis of rotation.

4. The blow molding device for an air duct assembly according to claim 1, characterized in that: The positioning component (4) includes slots (41), which are formed on the upper surface of the swing plate (29) and are in multiple sets. The multiple sets of slots (41) are evenly distributed along the extension direction of the swing plate (29).

5. The blow molding device for an air duct assembly according to claim 4, characterized in that: The inner wall of the slot (41) is fitted with a plug (43), the outer wall of the plug (43) is slidably connected to the inner wall of the sliding plate (211), the upper surface of the sliding plate (211) is fixedly connected to a protective box (42), and the outer wall of the plug (43) is slidably connected to the inner wall of the protective box (42).

6. The blow molding device for an air duct assembly according to claim 5, characterized in that: A guide rod (44) is fixedly connected to the upper surface of the insert (43), and a pull plate (45) is fixedly connected to the upper surface of the guide rod (44).

7. A blow molding device for an air duct assembly according to claim 6, characterized in that: The insert (43) and the protective box (42) are elastically connected by a support spring (46).

Images