A quick demolding device for refrigerator foam molds

Abstract

This utility model discloses a rapid demolding device for a refrigerator foaming mold, belonging to the field of foaming mold technology. It includes: a machine base; a hydraulic cylinder mounted on the top of the machine base; an upper mold connected to the output end of the hydraulic cylinder; a lower mold fixedly mounted to the machine base directly below the upper mold; an ejector assembly inside the lower mold; a rotating plate above the lower mold; a switching assembly on the machine base to rotate the rotating plate; a suction assembly on one side of the rotating plate; and a cleaning assembly on the other side of the rotating plate. Thus, after the ejector assembly demolds the workpiece, the rotating plate rotates, bringing a vacuum suction cup above the workpiece. An electric push rod drives the vacuum suction cup downwards to contact the workpiece. After the vacuum suction cup adsorbs the workpiece, the electric push rod drives the vacuum suction cup upwards, causing the workpiece to leave the lower mold. Then, the rotating plate rotates again, completing the workpiece removal process and preventing burns to workers.

Description

Technical Field

[0001] This utility model relates to a rapid demolding device for refrigerator foam molds, belonging to the field of foam mold technology. Background Technology

[0002] Refrigerator foam molds are molds used to manufacture refrigerator bodies, doors, and other components. By injecting foam material and allowing it to expand and solidify, a structure with thermal insulation and other properties is formed.

[0003] Announcement No. CN220741904U discloses a rapid demolding device for a refrigerator foaming mold, including a base plate and supporting legs. A demolding mechanism is provided below the base plate. The demolding mechanism includes a mounting plate, a motor, a threaded rod, a movable sleeve, and a movable plate. One side of the mounting plate is fixedly connected to one end of the motor, and the output end of the motor is fixedly connected to one end of the threaded rod. The outer wall of the threaded rod is threadedly connected to the inner wall of the movable sleeve. One side of the movable sleeve is fixedly connected to one end of the movable plate. The other end of the movable plate is slidably connected to a guide rail. A wedge plate is fixedly installed on the top of the movable sleeve, and the top of the wedge plate presses against a second wedge plate. This device enables rapid demolding of the mold, solving the problem of requiring operators to perform demolding operations after the refrigerator body foaming mold is prepared, reducing the labor intensity of operators, and improving processing efficiency.

[0004] The above solution has the following shortcomings in practical use:

[0005] The solution uses a demolding template to push the foamed workpiece upwards to achieve demolding. In actual use, the surface temperature of the workpiece after foaming is usually 50~80℃, and the internal temperature can reach 60~100℃. If it is taken out directly after being ejected from the mold, there may be a risk of burns. If it is taken out after cooling down, the foaming efficiency will be affected. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides a quick demolding device for refrigerator foaming molds, which realizes automatic material removal after the workpiece is ejected, thus avoiding the situation where workers are burned.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A rapid demolding device for a refrigerator foaming mold includes: a machine base, a hydraulic cylinder mounted on the top of the machine base, an upper mold connected to the output end of the hydraulic cylinder, a lower mold fixedly mounted to the machine base directly below the upper mold, an ejection assembly inside the lower mold, a rotating plate above the lower mold, a switching assembly for rotating the rotating plate on the machine base, an adsorption assembly on one side of the rotating plate, and a cleaning assembly on the other side of the rotating plate.

[0009] Preferably, the ejection assembly includes four ejection slots, which are respectively opened at the four bottom corners of the lower mold. An ejection electric cylinder is installed in each ejection slot, and the output end of the ejection electric cylinder is connected to an ejector block.

[0010] Preferably, the switching assembly includes a rotating shaft, which is rotatably mounted on the machine base via bearings. A worm gear is installed below the outer side wall of the rotating shaft, and a worm gear meshing with the worm gear is rotatably mounted on the machine base.

[0011] Preferably, the adsorption assembly includes an electric push rod, which is installed on the top side of the rotating plate. The output end of the electric push rod is connected to a vacuum suction cup, and the top of the rotating plate is provided with a vacuum pump that communicates with the vacuum suction cup.

[0012] Preferably, the cleaning component includes a frame, which is fixedly installed on the other side of the bottom of the rotating plate. The frame has an elongated groove on its inner side wall, in which a lead screw is rotatably installed. The outer side wall of the lead screw is threaded with a threaded block. An air pipe is installed on one side of the threaded block. Several air nozzles are installed at an angle on one end of the air pipe. A high-pressure air pump connected to the air pipe is installed on the top of the rotating plate.

[0013] Preferably, a vacuum box is mounted on the top of the air pipe via an L-shaped bracket, the bottom of the vacuum box has several negative pressure holes, and a vacuum cleaner connected to the vacuum box is mounted on the top of the rotating plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: After the ejector assembly demolds the workpiece, the rotating plate rotates to move the vacuum suction cup above the workpiece. The electric push rod drives the vacuum suction cup to descend and contact the workpiece. After the vacuum suction cup adsorbs the workpiece, the electric push rod drives the vacuum suction cup to rise and move the workpiece away from the lower mold. Then the rotating plate rotates again to complete the removal of the workpiece, avoiding burns to the workers. After the workpiece is removed, the air nozzle is moved to the upper part of the lower mold. The air nozzle blows air to blow off the foaming material adhering to the lower mold, which is then collected by the vacuum cleaner. Through the pre-assisted cleaning, the workers can clean it again later, reducing the cleaning burden on the workers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the ejection assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the switching component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.

[0020] In the diagram: 1. Machine base; 2. Hydraulic cylinder; 3. Upper mold; 4. Lower mold; 5. Ejection assembly; 6. Rotating plate; 7. Switching assembly; 8. Adsorption assembly; 9. Cleaning assembly; 501. Ejection slot; 502. Ejection electric cylinder; 503. Ejector block; 701. Rotating shaft; 702. Worm gear; 703. Worm; 801. Electric push rod; 802. Vacuum suction cup; 803. Vacuum pump; 901. Frame; 902. Long slot; 903. Lead screw; 904. Lead block; 905. Air pipe; 906. Air nozzle; 907. High-pressure air pump; 908. Dust collection box; 909. Negative pressure hole; 9010. Vacuum cleaner. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A rapid demolding device for a refrigerator foaming mold includes: a machine base 1, a hydraulic cylinder 2 mounted on the top of the machine base 1, an upper mold 3 connected to the output end of the hydraulic cylinder 2, a lower mold 4 fixedly mounted to the machine base 1 directly below the upper mold 3, an ejection assembly 5 inside the lower mold 4, a rotating plate 6 above the lower mold 4, a switching assembly 7 on the machine base 1 for rotating the rotating plate 6, an adsorption assembly 8 on one side of the rotating plate 6, and a cleaning assembly 9 on the other side of the rotating plate 6.

[0024] Furthermore, the machine 1 is equipped with a controller for easy operation by staff. During the foaming process, the rotating plate 6 rotates away from the lower mold 4, causing the adsorption component 8 and the cleaning component 9 to rotate to the sides of the machine 1, away from directly above the lower mold 4, so as to avoid affecting the descent of the upper mold 3.

[0025] In this embodiment: the ejection assembly 5 includes four ejection slots 501, which are respectively opened at the four bottom corners of the lower mold 4. An ejection electric cylinder 502 is installed in the ejection slot 501, and the output end of the ejection electric cylinder 502 is connected to an ejector block 503.

[0026] Furthermore, the ejector electric cylinder 502 drives the ejector block 503 to rise, which can eject the workpiece upwards and achieve rapid demolding of the workpiece.

[0027] In this embodiment: the switching assembly 7 includes a rotating shaft 701, which is rotatably mounted on the machine base 1 via bearings. A worm gear 702 is installed below the outer side wall of the rotating shaft 701, and a worm 703 that meshes with the worm gear 702 is rotatably mounted on the machine base 1.

[0028] Furthermore, a bracket is installed on the machine base 1, and the worm gear 703 is rotatably mounted on the bracket, with one side of the worm gear 703 connected to the output end of the motor.

[0029] In this embodiment: the adsorption assembly 8 includes an electric push rod 801, which is installed on the top side of the rotating plate 6. The output end of the electric push rod 801 is connected to a vacuum suction cup 802. The top of the rotating plate 6 is provided with a vacuum pump 803 that communicates with the vacuum suction cup 802.

[0030] Furthermore, the vacuum pump 803 and the vacuum suction cup 802 are connected by a hose.

[0031] In this embodiment: the cleaning component 9 includes a frame 901, which is fixedly installed on the other side of the bottom of the rotating plate 6. The inner side wall of the frame 901 has an elongated groove 902. A lead screw 903 is rotatably installed in the elongated groove 902. A threaded block 904 is provided on the outer side wall of the lead screw 903. An air pipe 905 is installed on one side of the threaded block 904. Several air nozzles 906 are installed at an angle at one end of the air pipe 905. A high-pressure air pump 907 connected to the air pipe 905 is installed on the top of the rotating plate 6.

[0032] Furthermore, one end of the lead screw 903 is connected to the output end of the servo motor, and the high-pressure air pump 907 is connected to the air pipe 905 through a flexible hose.

[0033] In this embodiment: a vacuum cleaner 908 is mounted on the top of the air pipe 905 via an L-shaped bracket, and several negative pressure holes 909 are opened at the bottom of the vacuum cleaner 908. A vacuum cleaner 9010 connected to the vacuum cleaner 908 is mounted on the top of the rotating plate 6.

[0034] Furthermore, the vacuum cleaner 9010 is connected to the vacuum box 908 via a hose, which can collect the blown foam material.

[0035] The workflow of this embodiment is as follows: Raw material is poured into the lower mold 4. Hydraulic cylinder 2 drives the upper mold 3 to descend, causing the upper mold 3 and lower mold 4 to close and foam. After foaming, hydraulic cylinder 2 drives the upper mold 3 to rise. Then, the ejector electric cylinder 502 drives the ejector block 503 to rise, ejecting the workpiece upwards. Then, the worm gear 703 rotates, driving the worm wheel 702 to rotate, causing the rotating shaft 701 to rotate, thus rotating the rotating plate 6. After the vacuum suction cup 802 is rotated above the lower mold 4, the electric push rod 801 drives the vacuum suction cup 802 to descend. 2. The workpiece is adsorbed, and then the electric push rod 801 drives the vacuum suction cup 802 to rise so that the workpiece is completely removed from the lower mold 4, completing the material removal. Then the rotating shaft 701 continues to rotate so that the frame 901 rotates to the top of the lower mold 4. The lead screw 903 rotates so that the lead block 904 drives the air pipe 905 to rotate. The air pipe 905 blows air into the lower mold 4 to clean the residual foaming material inside the lower mold 4. During the blowing process, the negative pressure hole 909 collects the foaming material. By performing auxiliary cleaning first, the cleaning burden of the staff is reduced when they clean later.

[0036] 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 quick demolding device for a refrigerator foaming mold, characterized by, The machine includes: a machine base, a hydraulic cylinder mounted on the top of the machine base, an upper mold connected to the output end of the hydraulic cylinder, a lower mold fixedly mounted on the machine base directly below the upper mold, an ejection assembly inside the lower mold, a rotating plate above the lower mold, a switching assembly for rotating the rotating plate on the machine base, an adsorption assembly on one side of the rotating plate, and a cleaning assembly on the other side of the rotating plate.

2. The rapid demolding device for a refrigerator foaming mold according to claim 1, characterized in that, The ejection assembly includes four ejection slots, which are respectively opened at the four bottom corners of the lower mold. An ejection electric cylinder is installed in each ejection slot, and the output end of the ejection electric cylinder is connected to an ejector block.

3. The rapid demolding device for a refrigerator foaming mold according to claim 1, characterized in that, The switching assembly includes a rotating shaft, which is rotatably mounted on a machine base via bearings. A worm gear is installed below the outer side wall of the rotating shaft, and a worm gear meshing with the worm gear is rotatably mounted on the machine base.

4. The rapid demolding device for a refrigerator foaming mold according to claim 1, characterized in that, The adsorption assembly includes an electric push rod, which is installed on the top side of the rotating plate. The output end of the electric push rod is connected to a vacuum suction cup, and the top of the rotating plate is equipped with a vacuum pump that communicates with the vacuum suction cup.

5. A rapid demolding device for a refrigerator foaming mold according to claim 1, characterized in that, The cleaning assembly includes a frame, which is fixedly installed on the other side of the bottom of the rotating plate. The frame has an elongated groove on its inner side wall, in which a lead screw is rotatably installed. The outer side wall of the lead screw is threaded with a threaded block. An air pipe is installed on one side of the threaded block. Several air nozzles are installed at an angle on one end of the air pipe. A high-pressure air pump connected to the air pipe is installed on the top of the rotating plate.

6. The rapid demolding device for a refrigerator foaming mold according to claim 5, characterized in that, A vacuum chamber is mounted on the top of the air pipe via an L-shaped bracket. Several negative pressure holes are provided at the bottom of the vacuum chamber. A vacuum cleaner connected to the vacuum chamber is mounted on the top of the rotating plate.

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