Cooling device for slush molding mold

Abstract

According to the slush molding mold cooling device, a turnover table can drive a mold to turn over, a cooling frame provided with a spray head can turn over along with the mold, a lifting device capable of lifting the cooling frame is arranged, and the cooling frame can be separated from the lifting device when turning over along with the mold; by the adoption of the technical scheme, due to the fact that the cooling frame can be matched with the mold to turn over along with the mold, the spray head arranged on the cooling frame can continuously cool the mold in the mold turning-over process, cooling and mold turning-over are conducted synchronously, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to a cooling device, in particular to a cooling device for cooling a mold in a slush molding process. Background Art

[0002] At present, in the production of automobile dashboards, door panels, overhead boxes, etc., the skin is mostly made of slush molding technology. The cooling process of the annular slush molding production line is an air cooling process. The cold air requires a refrigerator to generate heat through heat exchange, which consumes a lot of electricity. The mold is slowly cooled in the air cooling cabinet by lowering the ambient temperature inside the cabinet. The cooling time is relatively long, and the production efficiency of the line cannot be improved.

[0003] In order to improve the cooling efficiency, a water cooling device has appeared in the existing equipment to cool the slush mold. Generally, a spray head is used to spray and cool the non-working surface of the mold. During the cooling process, the mold needs to keep the non-working surface facing the spray device. After the cooling is completed, the mold is turned over for the staff to take out the product in the mold cavity. The cooling and mold turning sequence is to prevent the coolant from being sprayed into the mold cavity and affecting the product or mold cavity. However, due to the sequential cooling and turning, the work efficiency is relatively low. Summary of the invention

[0004] In order to improve the working efficiency during the demoulding process of the slush mold, the technical solution adopted by the present invention is:

[0005] The cooling device for a slush mold comprises a frame on which a turning table for placing the mold and driving the mold to turn over is arranged; a nozzle for spraying a cooling medium onto a non-working surface of the mold to cool the mold; and a supply unit for supplying the cooling medium to the nozzle;

[0006] It also includes a cooling rack that can cooperate with the mold and flip with the mold to install a nozzle; a lifting device for lifting the cooling rack; and a suspension mechanism that can be separated from or combined with the cooling rack is arranged on the lifting device.

[0007] Furthermore, it also includes a recovery mechanism for collecting the cooling medium.

[0008] Furthermore, a splash shield capable of covering the non-working part of the mold is arranged on the cooling rack.

[0009] Furthermore, the hanging mechanism is a hook or a clamp.

[0010] Furthermore, the supply unit provides cooling liquid and / or air to the nozzle.

[0011] By adopting the above technical solution, since the cooling rack can cooperate with the mold and flip along with the mold, the nozzle arranged on the cooling rack can continuously cool the mold during the mold flipping process, so that cooling and mold flipping are carried out synchronously, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cooling device structure;

[0013] Figure 2 It is a schematic diagram of the coordination relationship between the suspension mechanism and the cooling rack when the mold is flipped;

[0014] Figure 3 Schematic diagram of the coordination between the cooling rack and the mold. DETAILED DESCRIPTION

[0015] In order to better understand the concept of the present invention, the technical solution is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 The cooling device shown can be adapted to serve as a cooling station in an slush molding production line, and includes a frame 1 on which a turning table 2 is arranged, the turning table 2 being connected to a conveying track of the slush molding production line, the mold being transported to the turning table 2 via the conveying track, the turning table 2 being turned along an axis parallel to a horizontal plane by a motor driven by a motor arranged on the frame 1, specifically, the turning table 2 being arranged in the frame 1 via a rotating shaft 11, the motor being connected to the turning table 2 via a gear, the motor driving the gear driving the rotating shaft 11 enables the turning table 2 to be turned over, after the mold is transported to the turning table 2, it is fixed on the turning table 2, and turned over together with the turning table 2, so that the mold cavity faces the operator, making it convenient for the operator to take out the product formed in the cavity.

[0017] In order to fix the mold A on the turning table 2, a locking claw 12 is provided on the turning table 2 to fix the mold. Figure 1 As shown, a frame 13 formed of angle iron is arranged outside the mold. When the mold enters the turning table 2, the locking claw 12 can clamp the frame 13 to fix the mold on the turning table 2, so that the mold will not fall off when the turning table 2 is turned.

[0018] In order to achieve cooling of the mold, the cooling device is provided with a cooling rack 6, on which a nozzle 3 is provided, and a supply unit for supplying cooling medium to the nozzle 3 is also configured. The nozzle 3 is arranged on the non-working surface of the mold through the cooling rack 6 (the non-working surface is a portion where no cavity and molded product are set. For the mold, if the surface with the cavity is the front side, the non-working surface is the back side). The supply unit supplies cooling medium to the nozzle 3 and then sprays it onto the non-working surface of the mold to achieve the cooling effect of the mold.

[0019] A lifting device is provided on the frame 1, and the lifting device can drive the cooling rack 6 to rise and fall. When the mold is transported to the turning table 2, the lifting device lifts the cooling rack 6 to a certain height to prevent the cooling rack 6 from blocking the mold from entering the turning table 2. After the mold reaches the specified position of the turning table 2, the cooling rack 6 is lowered to a specified height by the lifting device, so that the nozzle 3 can effectively cool the mold. In this embodiment, the lifting device uses a cylinder to realize the lifting and lowering of the cooling rack 6. The cylinder body 7-1 is set on the frame, and the free end of the cylinder telescopic rod is connected to the crossbeam 7-2. The cooling rack 6 is suspended by the suspension mechanism 8 on the crossbeam 7-2 to drive the cooling rack 6 to rise and fall. The crossbeam 7-2 cooperates with the frame 1 through the guide rail 1-1 to realize guidance.

[0020] In order to improve efficiency, enable the mold to be effectively cooled during the flipping process, and avoid the cooling medium being sprayed into the mold cavity, this technical solution enables the cooling rack 6 to flip together with the mold, and maintains the nozzle spray cooling on the non-working parts of the mold during the mold flipping process, thereby achieving a cooling effect on the mold.

[0021] To ensure that the cooling rack 6 can be turned over with the mold and avoid falling after turning over, the cooling rack 6 can be matched with the mold after falling down, and the cooling rack 6 can be turned over with the mold without falling off after being matched with the mold. The specific structure is as follows Figure 3 The cooling rack 6 can be embedded in the frame 13 outside the mold for positioning and fixing. Alternatively, a magnetic device can be provided on the cooling rack 6 to magnetically fix the cooling rack 6 to the frame 13 so that the cooling rack 6 can be turned over with the mold.

[0022] In order to avoid splashing when the nozzle 3 sprays the cooling medium onto the mold, a splash shield 10 can also be provided on the cooling rack 6. During the falling process of the cooling rack 6, the splash shield 10 can be covered outside the non-working surface of the mold to form a protection to avoid the splashing of the cooling medium. Since the splash shield 10 is integrally provided with the cooling rack 6, the splash shield 10 will also flip along with the mold during the flipping process of the mold. Therefore, in addition to the above-mentioned method of realizing the follow-up movement of the cooling rack 6 and the mold by cooperating with the cooling rack 6 and the mold, the flipping follow-up can also be realized by cooperating with the splash shield 10 and the mold. Since the splash shield 10 and the cooling rack 6 can be regarded as a whole, the cooperation between the cooling rack 6 and the splash shield 10 and the mold can be regarded as equivalent. When the splash shield 10 is provided, the splash shield 10 can be embedded in the frame 13 on the mold so that the cooling rack 6 and the splash shield 10 flip along with the mold without falling.

[0023] As mentioned above, the cooling rack 6 is connected to the lifting device through the suspension mechanism 8. However, since the cooling rack 6 needs to flip with the mold, and the lifting device is fixed to the frame 1, the cooling rack 6 needs to be separated from the lifting device during the flipping process. Therefore, the suspension mechanism 8 adopts a structure that can be separated from or combined with the cooling rack 6 to suspend the cooling rack 6. When the mold drives the cooling rack 6 to flip, the cooling rack 6 is separated from the suspension mechanism 8, so that the cooling rack 6 flips with the mold; when the lifting device drives the cooling rack 6 to rise and fall, the cooling rack 6 is combined with the suspension mechanism 8, so that the lifting device can drive the cooling rack 6 to rise and fall. From the figure, when the back of the mold is facing up, the cooling rack 6 remains combined with the suspension mechanism 8, and when the mold is flipped, the cooling rack 6 is separated from the suspension mechanism 8. Specifically, Figure 2 Here, a hanging mechanism for convenient engagement and disengagement is shown. A pair of hanging rods 6-1 are provided on the cooling rack 6, and a pair of semi-enclosed hooks 8-1 are provided on the hanging mechanism 8. When the cooling rack 6 is matched with the mold and the mold is turned over, the hanging rod 6-1 is separated from the hook from the open part of the hook 8-1. When the mold returns to the initial position, the hanging rod 6-1 can enter the hook 8-1 from the open part of the hook 8-1 and engage with the hook 8-1. Of course, in addition to the above structure, the hanging mechanism 8 can also use pneumatic calipers and other methods to lock or unlock the cooling rack 6. Since this is relatively conventional, it is no longer shown in the figure.

[0024] The supply unit can use a high-pressure water pump 5-1 to deliver coolant to the nozzle 3 to spray and cool the mold, or the supply unit can also use an air compressor 5-2 to provide high-pressure airflow for cooling the nozzle 3, or the high-pressure water pump 5-1 or the air compressor 5-2 can be connected to the nozzle 3 through the electromagnetic reversing valve 5-4 at the same time. When any cooling medium is needed, it is only necessary to control the electromagnetic reversing valve 5-4 to change direction, or switch to high-pressure airflow after the coolant spraying is completed, and remove the coolant remaining on the mold surface through the high-pressure airflow. Since a pipe 5-3 for the circulation of cooling medium is also provided between the nozzle 3 and the supply unit, and the nozzle 3 will move with the mold, it is best to use an elastic hose for the pipe 5-3 for the circulation of cooling medium.

[0025] In order to save energy, Figure 1 As shown, a recovery mechanism is also provided at the bottom of the frame 1, including a water tank 9-1. After the coolant is sprayed onto the mold, it flows into the water tank 9-1 for collection, and is extracted from the water tank 9-1 by a high-pressure water pump 5-1 for recycling. Alternatively, for better cooling effect, the coolant collected in the water tank 9-1 is transported to a cooling tower 9-3 for cooling by a water pump 9-2, and then concentrated in a water tank 9-4. The high-pressure water pump 5-1 supplies the coolant in the water tank 9-4 to the nozzle 3 for cooling the mold.

Claims

1. Slush mold cooling device, including: A frame (1), on which a turning table (2) is arranged for placing the mold and driving the mold to turn over; A nozzle (3) is used to spray a cooling medium onto the non-working surface of the mold to cool the mold; A supply unit, used for supplying a cooling medium to the nozzle (3); Features: Also includes, A cooling rack (6) is used to mount the nozzle (3) and can cooperate with the mold to flip along with the mold; A lifting device, used for lifting and lowering the cooling rack (6); The lifting device is provided with a suspension mechanism (8) which can be separated from or combined with the cooling rack (6).

2. The cooling device for slush mold according to claim 1, characterized in that: Also included is a recovery mechanism for collecting the cooling medium.

3. The cooling device for slush mold according to claim 1, characterized in that: The cooling rack (6) is provided with a splash-proof cover (10) capable of covering the non-working part of the mold.

4. The cooling device for slush mold according to claim 1, characterized in that: The hanging mechanism (8) is a hook or a clamp.

5. The cooling device for slush mold according to claim 1, characterized in that: The supply unit provides cooling liquid and / or air to the nozzle (3).

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