Die exhaust system

Abstract

The utility model discloses a mold exhaust system which comprises a bottom plate, a movable frame is fixedly installed on the upper end face of the bottom plate, a sliding rod is fixedly installed in the movable frame, a movable block is installed on the outer wall of the sliding rod in a sliding mode through a limiting mechanism, and the outer wall of the movable block is connected with the inner wall of the movable frame through an elastic mechanism. A connecting plate is fixedly mounted on the upper end face of the moving block, an extrusion block is fixedly mounted on the bottom wall of the connecting plate, an extrusion groove is formed in the outer wall of the extrusion block, a motor is fixedly mounted on the upper end face of the bottom plate through a supporting mechanism, and a cam is fixedly mounted on the outer wall of an output shaft of the motor. Through the arrangement of the cam, the moving block, the sliding rod, the spring and other components, when the cam continuously rotates and is in intermittent contact with the inner wall of the extrusion groove, reciprocating shaking of the connecting plate can be achieved through the elastic effect of the spring, and therefore bubbles in molten materials in the lower mold can be eliminated, and the situation that the bubbles affect the injection molding quality is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold exhaust system. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] During the injection molding process, since the interior of the injection mold is hollow, there will be some air inside the injection mold. When the melted raw material is poured into the injection mold, part of the air will be squeezed out into the molding cavity inside the injection mold, and a small part of the air will be wrapped by the melted raw material and cannot be discharged. During injection molding, the air wrapped by the raw material will form bubbles inside the molded object, affecting the injection quality of the injection mold. Therefore, it is necessary to design a mold exhaust system to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a mold exhaust system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold exhaust system comprises a base plate, a moving frame is fixedly installed on the upper surface of the base plate, a sliding rod is fixedly installed inside the moving frame, a moving block is slidably installed on the outer wall of the sliding rod through a limiting mechanism, the outer wall of the moving block is connected to the inner wall of the moving frame through an elastic mechanism, a connecting plate is fixedly installed on the upper end surface of the moving block, an extrusion block is fixedly installed on the bottom wall of the connecting plate, an extrusion groove is provided on the outer wall of the extrusion block, a motor is fixedly installed on the upper surface of the base plate through a supporting mechanism, a cam is fixedly installed on the outer wall of the motor output shaft, a lower mold is fixedly installed on the upper surface of the connecting plate, a support frame is fixedly installed on the upper surface of the base plate, and the bottom wall of the support frame is fixedly connected to the upper mold through a lifting mechanism.

[0007] Preferably, the limiting mechanism comprises a limiting rod fixedly installed inside the moving frame, and the limiting rod slides through the moving block.

[0008] Preferably, the elastic mechanism comprises a spring fixedly mounted on the outer wall of the sliding rod, and two ends of the spring are respectively fixedly connected to the inner wall of the moving frame and the outer wall of the moving block.

[0009] Preferably, the support mechanism comprises a support plate fixedly mounted on the upper end surface of the bottom plate, and the motor is fixedly mounted on the bottom wall of the support plate.

[0010] Preferably, the lifting mechanism comprises a cylinder fixedly mounted on the bottom wall of the support frame, and the telescopic end of the cylinder is fixedly connected to the upper end surface of the upper mold.

[0011] Preferably, a sealing gasket is fixedly mounted on the upper end surface of the lower mold, and the sealing gasket is made of vulcanized rubber.

[0012] Preferably, a purification box is fixedly mounted on the upper end surface of the upper mold, a connecting pipe communicating with the interior is fixedly mounted on the outer wall of the purification box, and an end of the connecting pipe is communicated with the interior of the upper mold.

[0013] Preferably, two purification plates are slidably mounted inside the purification box through slots, and a plurality of air outlets communicating with the interior are provided on the outer wall of the purification box.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting up components such as cams, moving blocks, sliding rods and springs, when the cam rotates continuously and contacts the inner wall of the extrusion groove intermittently, the reciprocating vibration of the connecting plate can be achieved through the elastic action of the spring, thereby eliminating bubbles in the molten material inside the lower mold to prevent bubbles from affecting the injection molding quality.

[0016] 2. By setting up components such as connecting pipes, purification boxes and purification plates, the gas can be discharged into the purification box through the connecting pipe, and can be absorbed and filtered by two purification plates in the purification box, thereby purifying the odor and toxic substances in the gas, thereby preventing the toxic gas from causing harm to the operator's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a mold exhaust system proposed by the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the vertical section structure;

[0019] Figure 3 This is a side structural schematic diagram of a mold exhaust system proposed by the utility model;

[0020] Figure 4 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0021] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point B in FIG.

[0022] In the figure: 1 bottom plate, 2 moving frame, 3 sliding rod, 4 limiting rod, 5 moving block, 6 spring, 7 connecting plate, 8 extrusion block, 9 supporting plate, 10 motor, 11 cam, 12 lower mold, 13 sealing pad, 14 supporting frame, 15 cylinder, 16 upper mold, 17 purification box, 18 connecting pipe, 19 purification plate. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-5 , a mold exhaust system comprises a bottom plate 1, a moving frame 2 is fixedly installed on the upper end surface of the bottom plate 1, a sliding rod 3 is fixedly installed inside the moving frame 2, a moving block 5 is slidably installed on the outer wall of the sliding rod 3 through a limiting mechanism, the limiting mechanism comprises a limiting rod 4 fixedly installed inside the moving frame 2, the limiting rod 4 slides through the moving block 5, and the limiting rod 4 can limit the moving block 5 so that the moving block 5 can only move axially along the outer wall of the sliding rod 3, and the outer wall of the moving block 5 is connected to the inner wall of the moving frame 2 through an elastic mechanism. The elastic mechanism comprises a spring 6 fixedly installed on the outer wall of the sliding rod 3, and the two ends of the spring 6 are respectively fixedly connected to the inner wall of the moving frame 2 and the outer wall of the moving block 5, a connecting plate 7 is fixedly installed on the upper end surface of the moving block 5, and an extrusion block 8 is fixedly installed on the bottom wall of the connecting plate 7, and an extrusion groove is opened on the outer wall of the extrusion block 8, and a motor 10 is fixedly installed on the upper end surface of the bottom plate 1 through a supporting mechanism, and the supporting mechanism comprises a supporting plate 9 fixedly installed on the upper end surface of the bottom plate 1, and the motor 10 is fixedly installed on the bottom wall of the supporting plate 9.

[0025] A cam 11 is fixedly mounted on the outer wall of the output shaft of the motor 10, a lower mold 12 is fixedly mounted on the upper end surface of the connecting plate 7, a sealing gasket 13 is fixedly mounted on the upper end surface of the lower mold 12, and the sealing gasket 13 is made of vulcanized rubber. Vulcanized rubber refers to vulcanized rubber, which has the characteristics of not being sticky and not easy to break. Most rubber products are made of this rubber, and it also has high elasticity, heat resistance, tensile strength and insolubility in organic solvents. A support frame 14 is fixedly mounted on the upper end surface of the bottom plate 1, and the bottom wall of the support frame 14 is fixedly connected to the upper mold 16 through a lifting mechanism. The lifting mechanism includes a gasket fixedly mounted on the bottom wall of the support frame 14. Cylinder 15, the telescopic end of the cylinder 15 is fixedly connected to the upper end surface of the upper mold 16, the upper end surface of the upper mold 16 is fixedly installed with a purification box 17, the outer wall of the purification box 17 is fixedly installed with a connecting pipe 18 connected to the interior, the end of the connecting pipe 18 is connected to the interior of the upper mold 16, and two purification plates 19 are slidably installed in the purification box 17 through slots. Both purification plates 19 are activated carbon materials. The principle of activated carbon purifying air is mainly based on its developed pore structure and large surface area, and it absorbs pollutants in the air by physical adsorption and chemical adsorption. The outer wall of the purification box 17 is provided with multiple air outlets connected to the interior.

[0026] When the utility model is used, the cylinder 15 can drive the upper mold 16 to move downward, so that its bottom wall squeezes the sealing gasket 13, thereby realizing the mold closing between the upper mold 16 and the lower mold 12, and the sealing between the two can be increased by squeezing the sealing gasket 13. When the molten material enters the lower mold 12, the motor 10 drives the cam 11 to rotate, and the cam 11 can contact the inner wall of the extrusion groove when rotating, thereby the extrusion block 8 can be forced to drive the connecting plate 7 to move, and the connecting plate 7 can then drive the moving block 5 to slide on the outer wall of the slide bar 3 through the cooperation of the limit rod 4 and pull the spring 6. When the cam 11 does not contact the inner wall of the extrusion groove, the moving block 5 can drive the connecting plate 7 to move and reset under the elastic action of the spring 6. When the cam 11 continues to rotate and intermittently contacts the inner wall of the extrusion groove, the reciprocating shaking of the connecting plate 7 can be realized through the elastic action of the spring 6, thereby the bubbles in the molten material in the lower mold 12 can be eliminated to prevent the bubbles from affecting the injection molding quality, and the generated gas can be discharged to the inside of the purification box 17 through the connecting pipe 18;

[0027] At the same time, the gas in the purification box 17 can be absorbed and filtered by two purification plates 19, thereby purifying the odor and toxic substances in the gas, thereby preventing the toxic gas from causing harm to the operator's body. The purified gas can be discharged through multiple air outlets inside the purification box 17. When the two purification plates 19 have a low purification effect due to long-term use, they can be pulled out of the slots, thereby realizing convenient replacement of the purification plates 19 and ensuring their purification effect on toxic gases.

[0028] 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. A mold exhaust system, comprising a bottom plate (1), characterized in that: A moving frame (2) is fixedly mounted on the upper end surface of the base plate (1), a sliding rod (3) is fixedly mounted inside the moving frame (2), a moving block (5) is slidably mounted on the outer wall of the sliding rod (3) through a limiting mechanism, the outer wall of the moving block (5) is connected to the inner wall of the moving frame (2) through an elastic mechanism, a connecting plate (7) is fixedly mounted on the upper end surface of the moving block (5), an extrusion block (8) is fixedly mounted on the bottom wall of the connecting plate (7), an extrusion groove is provided on the outer wall of the extrusion block (8), a motor (10) is fixedly mounted on the upper end surface of the base plate (1) through a supporting mechanism, a cam (11) is fixedly mounted on the outer wall of the output shaft of the motor (10), a lower mold (12) is fixedly mounted on the upper end surface of the connecting plate (7), a supporting frame (14) is fixedly mounted on the upper end surface of the base plate (1), and the bottom wall of the supporting frame (14) is fixedly connected to an upper mold (16) through a lifting mechanism.

2. A mold exhaust system according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (4) fixedly mounted inside the moving frame (2), and the limiting rod (4) slides through the moving block (5).

3. A mold exhaust system according to claim 2, characterized in that: The elastic mechanism comprises a spring (6) fixedly mounted on the outer wall of the slide rod (3), and two ends of the spring (6) are respectively fixedly connected to the inner wall of the moving frame (2) and the outer wall of the moving block (5).

4. A mold exhaust system according to claim 3, characterized in that: The support mechanism comprises a support plate (9) fixedly mounted on the upper end surface of the base plate (1), and the motor (10) is fixedly mounted on the bottom wall of the support plate (9).

5. A mold exhaust system according to claim 4, characterized in that: The lifting mechanism comprises a cylinder (15) fixedly mounted on the bottom wall of the support frame (14), and the telescopic end of the cylinder (15) is fixedly connected to the upper end surface of the upper mold (16).

6. A mold exhaust system according to claim 5, characterized in that: A sealing gasket (13) is fixedly mounted on the upper end surface of the lower mold (12), and the sealing gasket (13) is made of vulcanized rubber.

7. A mold exhaust system according to claim 6, characterized in that: A purification box (17) is fixedly mounted on the upper end surface of the upper mold (16), and a connecting pipe (18) communicating with the interior is fixedly mounted on the outer wall of the purification box (17), and the end of the connecting pipe (18) is communicated with the interior of the upper mold (16).

8. A mold exhaust system according to claim 7, characterized in that: Two purification plates (19) are slidably mounted inside the purification box (17) through slots, and the outer wall of the purification box (17) is provided with a plurality of air outlets communicating with the interior.

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