Automatic demolding device

Abstract

The utility model relates to the technical field of injection molding, and discloses an automatic demolding device which comprises a mechanical arm, a demolding plate is fixed at the moving end of the mechanical arm, the demolding plate is of a hollow structure, a sealing cylinder is fixed on the mechanical arm, a first sliding plug is connected in the sealing cylinder in a sealing and sliding mode, an air cylinder is further installed on the mechanical arm, and a second sliding plug is installed on the air cylinder. And the telescopic end of the air cylinder is connected with the first sliding plug, the sealing cylinder communicates with an air pipe, the end, away from the sealing cylinder, of the air pipe communicates with the interior of the demolding plate, a plurality of demolding structures are arranged on the demolding plate, and plugging assemblies are arranged on the demolding structures. According to the utility model, a plurality of uniformly distributed suckers are used, so that the device can uniformly apply tensile force in the demolding process, and the stress of a finished product is uniform, thereby avoiding the damage or deformation of the finished product caused by non-uniform force.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an automatic demoulding device. Background Art

[0002] In the injection molding process, demoulding refers to the operation of removing the injection molded parts from the mold. Correct demoulding operation is a key step to ensure the quality of injection molded parts and production efficiency.

[0003] The automatic demoulding device in the prior art generally pulls the finished product out of the mold by applying a pulling force to the middle of the finished product. In the process of applying the pulling force to the finished product, since the pulling force is concentrated in the middle of the finished product, additional stress and friction may be generated on the surface of the finished product, resulting in surface marks, scratches or other damages. This may have an adverse effect on the appearance quality of the finished product for products requiring high-quality appearance, such as transparent plastic products or other products with fine surfaces.

[0004] Therefore, it is necessary to design an automatic demoulding device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an automatic demoulding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic demoulding device comprises a robotic arm, a demoulding plate is fixed on the movable end of the robotic arm, the demoulding plate is a hollow structure, a sealing cylinder is fixed on the robotic arm, the interior of the sealing cylinder is sealingly and slidingly connected to a first sliding plug, a cylinder is also installed on the robotic arm, and the telescopic end of the cylinder is connected to the first sliding plug, an air pipe is connected to the sealing cylinder, and one end of the air pipe away from the sealing cylinder is connected to the interior of the demoulding plate, a plurality of demoulding structures are arranged on the demoulding plate, and a plurality of the demoulding structures are each provided with a sealing component.

[0008] As a preferred technical solution of the utility model, the demolding structure includes an outer cylinder, a second sliding plug, a connecting rod, a flexible ferrule, a suction cup, a spring and a mounting tube. The outer cylinder is fixed to the side of the demolding template, and the outer cylinder is connected to the interior of the demolding template. The second sliding plug is sealingly and slidingly connected to the inner surface of the outer cylinder. One end of the connecting rod is fixedly connected to the second sliding plug, and the other end extends to the outside of the outer cylinder. The flexible ferrule is fixed to the end of the connecting rod located outside the outer cylinder. The suction cup is fixed to the flexible ferrule. One end of the spring is connected to the outer cylinder, and the other end is connected to the second sliding plug. One end of the mounting tube is connected to the suction cup, and the other end extends to the interior of the outer cylinder. The mounting tube passes through the flexible ferrule, the connecting rod and the second sliding plug.

[0009] As a preferred technical solution of the utility model, the sealing assembly includes a fixing ring, a sealing plate and a connecting rod. The fixing ring is fixed to the inner surface of the outer tube, the sealing plate is placed inside the outer tube, and the sealing plate is arranged opposite to the fixing ring. One end of the connecting rod is fixedly connected to the second sliding plug, and the other end is fixedly connected to the sealing plate.

[0010] As a preferred technical solution of the utility model, the blocking plate is made of rubber material.

[0011] As a preferred technical solution of the utility model, a plurality of the outer cylinders are evenly distributed on the stripping plate.

[0012] As a preferred technical solution of the utility model, the air pipe adopts a hose.

[0013] The utility model has the following beneficial effects:

[0014] By using multiple evenly distributed suction cups, the device can evenly apply pulling force during the demoulding process to ensure that the finished product is evenly stressed, thereby avoiding damage or deformation of the finished product due to uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an automatic demoulding device proposed by the utility model;

[0016] Figure 2 It is a structural schematic diagram of the demolding structure;

[0017] Figure 3 for Figure 1 A magnified view of the structure at A.

[0018] In the figure: 1 mechanical arm, 2 stripping plate, 3 sealing cylinder, 4 first sliding plug, 5 cylinder, 6 air pipe, 71 outer cylinder, 72 second sliding plug, 73 connecting rod, 74 flexible head, 75 suction cup, 76 spring, 77 mounting tube, 81 fixing ring, 82 sealing plate, 83 connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3An automatic demoulding device includes a robot arm 1, a demoulding plate 2 is fixed on the moving end of the robot arm 1, the demoulding plate 2 is a hollow structure, a sealing cylinder 3 is fixed on the robot arm 1, and a first sliding plug 4 is connected to the sealing cylinder 3 in a sealing and sliding manner. A cylinder 5 is also installed on the robot arm 1, and the telescopic end of the cylinder 5 is connected to the first sliding plug 4. An air pipe 6 is connected to the sealing cylinder 3, and the end of the air pipe 6 away from the sealing cylinder 3 is connected to the inside of the demoulding plate 2. The air pipe 6 is a hose. When the cylinder 5 is running, it can drive the first sliding plug 4 to move. When the first sliding plug 4 moves, it can perform a vacuum action and extract the air inside the demoulding plate 2 through the air pipe 6.

[0021] The stripping plate 2 is provided with a plurality of stripping structures, which include an outer cylinder 71, a second sliding plug 72, a connecting rod 73, a flexible head 74, a suction cup 75, a spring 76 and a mounting tube 77. The outer cylinder 71 is fixed to the side of the stripping plate 2, and the outer cylinder 71 is connected to the inside of the stripping plate 2. The second sliding plug 72 is sealingly slidably connected to the inner surface of the outer cylinder 71. One end of the connecting rod 73 is fixedly connected to the second sliding plug 72, and the other end extends to the outside of the outer cylinder 71. The flexible head 74 is fixed to one end of the connecting rod 73 located outside the outer cylinder 71. The suction cup 75 and the connecting rod 73 are connected. The flexible headband 74 is connected with the suction cup 75 through a flexible headband 74, which is made of a flexible material. The design of the flexible headband 74 enables the suction cup 75 to deflect, which is conducive to the comprehensive adsorption of the suction cup 75 on the finished product. The suction cup 75 is fixed on the flexible headband 74, one end of the spring 76 is connected with the outer cylinder 71, and the other end is connected with the second sliding plug 72. One end of the mounting tube 77 is connected with the suction cup 75, and the other end extends to the interior of the outer cylinder 71. The mounting tube 77 passes through the flexible headband 74, the connecting rod 73 and the second sliding plug 72, and a plurality of outer cylinders 71 are evenly distributed on the stripping template 2.

[0022] Several demolding structures are provided with a blocking assembly, which includes a fixing ring 81, a blocking plate 82 and a connecting rod 83. The fixing ring 81 is fixed to the inner surface of the outer cylinder 71, and the blocking plate 82 is placed inside the outer cylinder 71, and the blocking plate 82 is arranged opposite to the fixing ring 81. The blocking plate 82 is made of rubber material, one end of the connecting rod 83 is fixedly connected to the second sliding plug 72, and the other end is fixedly connected to the blocking plate 82. The connecting rod 73 facing the finished product will be retracted into the corresponding outer cylinder 71. When the connecting rod 73 moves, it can drive the second sliding plug 72 to move. When the second sliding plug 72 moves, it can drive the blocking plate 82 to move through the connecting rod 83, so that the blocking plate 82 and the fixing ring 81 are separated from each other, while the remaining blocking plates 82 will not be separated from the corresponding fixing ring 81. They will fit tightly with the fixing ring 81 under the action of the corresponding spring 76. At this time, the gas cannot flow through the fixing ring 81 and the blocking plate 82.

[0023] The specific working principle of the utility model is as follows:

[0024] When the injection molded product is demoulded, the robot arm 1 is first started to move the demoulding plate 2 to the top of the mold, and then the robot arm 1 drives the demoulding plate 2 to move downward. During the downward movement of the demoulding plate 2, the suction cup 75 facing the finished product will first contact the finished product and fit with the surface of the finished product. At this time, the finished product will hinder the movement of the suction cup 75. The demoulding plate 2 continues to move downward, and the connecting rod 73 facing the finished product will be retracted into the corresponding outer cylinder 71. When the connecting rod 73 moves, it can drive the second sliding plug 72 to move. When the second sliding plug 72 moves, it can drive the blocking plate 82 to move through the connecting rod 83, so that the blocking plate 82 and the fixing ring 81 are separated from each other, while the remaining blocking plates 82 will not be separated from the corresponding fixing ring 81. They will fit tightly with the fixing ring 81 under the action of the corresponding springs 76. At this time, the gas cannot flow through the fixing ring 81 and the blocking plate 82.

[0025] When the suction cups 75 facing the finished product are all in contact with the finished product, the robot arm 1 stops running, and then the cylinder 5 starts running. When the cylinder 5 is running, it can drive the first sliding plug 4 to move. When the first sliding plug 4 moves, it can perform a vacuum action and extract the air inside the stripping plate 2 through the air pipe 6. Since the sealing plate 82 facing the finished product has been separated from the corresponding fixing ring 81, the gas in the outer cylinder 71 facing the finished product can be extracted, and the suction cup 75 adsorbed on the finished product will suck the finished product under the action of negative pressure. Further, the robot arm 1 drives the stripping plate 2 to move upward, and the several suction cups 75 adsorbing the finished product can jointly pull the finished product out of the mold, thereby completing the demoulding. Since the several suction cups 75 adsorbing the finished product are evenly distributed, the multiple suction cups 75 can evenly apply pulling force to the finished product, ensuring the demoulding effect of the device on the finished product.

[0026] It is worth mentioning that the suction cup 75 is connected to the connecting rod 73 through a flexible head package 74. The flexible head package 74 is made of flexible material. The design of the flexible head package 74 enables the suction cup 75 to be deflected, which is conducive to the comprehensive adsorption of the suction cup 75 on the finished product.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic demoulding device, comprising a robot arm (1), characterized in that: A stripping plate (2) is fixed on the movable end of the mechanical arm (1), and the stripping plate (2) is of a hollow structure. A sealing cylinder (3) is fixed on the mechanical arm (1), and the interior of the sealing cylinder (3) is sealingly slidably connected to a first sliding plug (4). A cylinder (5) is also installed on the mechanical arm (1), and the telescopic end of the cylinder (5) is connected to the first sliding plug (4). An air pipe (6) is connected to the sealing cylinder (3), and one end of the air pipe (6) away from the sealing cylinder (3) is connected to the interior of the stripping plate (2). A plurality of stripping structures are arranged on the stripping plate (2), and a plurality of the stripping structures are each provided with a sealing component.

2. An automatic demoulding device according to claim 1, characterized in that: The demolding structure comprises an outer cylinder (71), a second sliding plug (72), a connecting rod (73), a flexible ferrule (74), a suction cup (75), a spring (76) and a mounting tube (77); the outer cylinder (71) is fixed to the side of the demolding plate (2), and the outer cylinder (71) is connected to the inside of the demolding plate (2); the second sliding plug (72) is sealingly and slidably connected to the inner surface of the outer cylinder (71); one end of the connecting rod (73) is fixedly connected to the second sliding plug (72), and the other end extends to the outer cylinder (71). On the outside, the flexible headstock (74) is fixed to one end of the connecting rod (73) located outside the outer tube (71), the suction cup (75) is fixed on the flexible headstock (74), one end of the spring (76) is connected to the outer tube (71), and the other end is connected to the second sliding plug (72), one end of the mounting tube (77) is connected to the suction cup (75), and the other end extends to the inside of the outer tube (71), and the mounting tube (77) passes through the flexible headstock (74), the connecting rod (73) and the second sliding plug (72).

3. An automatic demoulding device according to claim 2, characterized in that: The plugging assembly comprises a fixing ring (81), a plugging plate (82) and a connecting rod (83); the fixing ring (81) is fixed to the inner surface of the outer cylinder (71); the plugging plate (82) is arranged inside the outer cylinder (71), and the plugging plate (82) is arranged opposite to the fixing ring (81); one end of the connecting rod (83) is fixedly connected to the second sliding plug (72), and the other end is fixedly connected to the plugging plate (82).

4. An automatic demoulding device according to claim 3, characterized in that: The blocking plate (82) is made of rubber material.

5. The automatic demoulding device according to claim 2, characterized in that: The plurality of outer cylinders (71) are evenly distributed on the stripping plate (2).

6. The automatic demoulding device according to claim 1, characterized in that: The air pipe (6) is a hose.

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