Exhaust structure of automobile air conditioner accessory injection mold

Abstract

The utility model discloses an exhaust structure of an automobile air conditioner accessory injection mold, which is provided with a lower mold, an upper mold is arranged above the lower mold, and the surface of the upper mold is provided with an injection port; comprising a movable rod which movably penetrates through the bottom of the upper mold, a connecting plate is fixed to the bottom of the movable rod, an exhaust mechanism is arranged in the connecting plate, and the exhaust mechanism is connected with the lower edge of the upper mold to achieve exhaust of gas in the lower mold; and the vibration mechanism is arranged at the top of the movable rod, and a fixing groove is formed in the portion, on the outer side of the movable rod, of the upper mold. According to the automobile air conditioner accessory injection mold exhaust structure, by arranging the multi-angle exhaust structure, gas can be exhausted from multiple positions at the same time, and the distribution uniformity of materials in the mold cavity can be guaranteed in the injection molding process, so that the gas exhaust speed is relatively uniform, the exhaust speed is increased, and the molding quality of subsequent products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning parts processing, in particular to an automobile air-conditioning parts injection mold exhaust structure. Background Art

[0002] Most of the automobile air-conditioning accessories are made of plastic, so injection molds are needed during the production process. The automobile air-conditioning accessories are processed by injection molding. During the injection molding process, the air inside the mold cavity needs to be discharged to ensure the uniformity of material distribution. Therefore, a corresponding exhaust structure is needed to achieve the exhaust of the injection mold. For example, the exhaust structure of the injection mold for automobile air-conditioning accessories with the publication number CN211440950U includes an operating plate, a movable plate, a gantry, an electric telescopic rod, an exhaust bin, an exhaust hole, an opening door, a material unloading inclined block, a protective coating, a spring, a movable rod, a movable handle and a hinge. The exhaust structure of the injection mold for automobile air-conditioning accessories on the existing market does not have a good protective effect. The instantaneous pressure during the injection molding extrusion process is relatively high, and the excess injection liquid splashes along the exhaust hole, affecting the cleanliness of the injection molding equipment. It is difficult to clean and is not conducive to user use. However, the exhaust structure of the injection mold for automobile air-conditioning accessories still has the following disadvantages during actual use:

[0003] Most traditional injection molds have only a single exhaust channel, resulting in low exhaust efficiency. In addition, the material is not evenly distributed during the injection process. Therefore, the gas exhaust speed at different positions is different. Some gas is likely to remain inside the mold, affecting the quality of subsequent product molding. In response to the above problems, it is urgent to carry out innovative design based on the original injection mold exhaust structure. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust structure for an injection mold of an automobile air-conditioning accessory, so as to solve the problem that the traditional injection molds mentioned in the above background technology mostly have only a single exhaust channel, resulting in low exhaust efficiency, and the material is not in a uniformly distributed state during the process of injection molding into the mold. Therefore, the gas exhaust speeds at different positions are different, and some gas is easily retained in the mold, affecting the quality of subsequent product molding.

[0005] To achieve the above object, the utility model provides the following technical solution: an exhaust structure of an injection mold for automobile air-conditioning parts, provided with a lower mold, an upper mold is provided above the lower mold, and an injection port is provided on the surface of the upper mold;

[0006] It includes: a movable rod, which is movable and runs through the bottom of the upper mold, a connecting plate is fixed to the bottom of the movable rod, and an exhaust mechanism is arranged inside the connecting plate, and the exhaust mechanism is connected to the lower edge of the upper mold to realize the exhaust of the gas inside the lower mold;

[0007] The vibration mechanism is arranged on the top of the movable rod, and a fixing groove is provided on the upper mold outside the movable rod.

[0008] Preferably, the movable rod and the upper mold are slidably connected, and a spring for returning the movable rod is wound around the outer side of the movable rod, which can drive the connecting plate to rise when the material squeezes the connecting plate and drive the movable rod to slide on the upper mold.

[0009] Preferably, the connecting plate is annular, and the inner diameter of the connecting plate is equal to the outer diameter of the lower end of the upper mold, and the outer diameter of the connecting plate is equal to the inner diameter of the lower mold. The setting of the connecting plate can ensure the flatness of the surface of the material after injection molding.

[0010] Preferably, the exhaust mechanism includes air inlet holes opened at equal angles on the lower surface of the connecting plate, and the connecting plate is hollow inside, and the air inlet holes are interconnected through the connecting plate and the connecting holes, and the gas below the connecting plate can be transmitted to the connecting plate through the air inlet holes, and then transmitted from the connecting holes to the gas transmission channel.

[0011] Preferably, the connecting holes are arranged at equal angles on the upper surface of the connecting plate, and the space above the connecting plate is connected to the fixed cavity through the gas supply channel, and the gas supply channel and the fixed cavity are both arranged in the lower mold, and the gas in the gas supply channel can enter the fixed cavity and then be discharged from the exhaust channel through the fixed tube.

[0012] Preferably, a fixing cylinder is fixed at an equal angle on the lower edge of the upper mold, and the fixing cylinder and the fixing cavity are matched, and the top of the fixing cylinder is connected to the exhaust channel, and the exhaust channel is arranged in the upper mold.

[0013] Preferably, the vibration mechanism includes fixed blocks fixed in the fixed groove at equal intervals, and the top of the movable rod is in contact with the fixed block, and the cross-section of the movable rod is an inverted "L"-shaped structure. At the same time, a guide rod is fixed to the side of the fixed block, and the end of the guide rod away from the fixed block is connected to the inner bottom surface of the upper mold.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the exhaust structure of the injection mold for automobile air-conditioning parts can realize the simultaneous exhaust of gas from multiple positions by setting a multi-angle exhaust structure, and can ensure the uniformity of material distribution in the mold cavity during the injection molding process, so that the speed of gas exhaust is relatively uniform, which improves the exhaust speed and ensures the quality of subsequent product molding. The specific contents are as follows:

[0015] 1. When the material enters the mold cavity, it will contact the connecting plate, which will then push the connecting plate up. The contact between the connecting plate and the material can ensure the uniform distribution of the material in the mold cavity. When the connecting plate is continuously rising, the gas in the space below it can enter the cavity of the connecting plate through the air inlet hole, and then be transmitted from the connecting hole to the gas transmission channel, and finally enter the fixed cylinder through the fixed cavity, and can be discharged from the exhaust channel, completing the discharge of the gas inside the mold cavity;

[0016] 2. When the connecting plate rises, it can contact with the fixed block, thereby generating vibration. The vibration force can be transmitted to the bottom surface of the upper mold through the guide rod. In this way, during the injection molding process, the uniformity of material distribution can be improved by vibration, and the smoothness of gas discharge can be ensured. When the connecting plate is not pushed, it can drop to the initial position through the resilience of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 This is a bottom view of the structure of the connecting plate of the utility model;

[0021] Figure 5 This is a side view structural diagram of the guide rod of the utility model;

[0022] Figure 6 It is a schematic diagram of the front section structure of the connecting plate of the utility model.

[0023] In the figure: 1. lower mold; 2. upper mold; 3. movable rod; 4. connecting plate; 5. air inlet hole; 6. connecting hole; 7. air delivery channel; 8. fixed cavity; 9. fixed cylinder; 10. exhaust channel; 11. fixed groove; 12. fixed block; 13. guide rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 , the utility model provides the following technical solutions:

[0026] Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical scheme: an exhaust structure of an injection mold for automobile air-conditioning accessories, which is provided with a lower mold 1, an upper mold 2 is provided above the lower mold 1, and an injection port is provided on the surface of the upper mold 2; it includes: a movable rod 3, which is movably passed through the bottom of the upper mold 2, a connecting plate 4 is fixed to the bottom of the movable rod 3, and an exhaust mechanism is provided inside the connecting plate 4, the exhaust mechanism is connected to the lower edge of the upper mold 2 to realize the exhaust of the internal gas of the lower mold 1; a vibration mechanism is arranged on the top of the movable rod 3, and a fixing groove 11 is opened on the upper mold 2 outside the movable rod 3.

[0027] Most of the existing injection molds have only a single exhaust channel 10, resulting in low exhaust efficiency. The movable rod 3 and the upper mold 2 are slidably connected, and a spring is wound around the outer side of the movable rod 3 to reset it; the connecting plate 4 is annular, and the inner diameter of the connecting plate 4 is equal to the outer diameter of the lower end of the upper mold 2, and the outer diameter of the connecting plate 4 is equal to the inner diameter of the lower mold 1; the exhaust mechanism includes air inlet holes 5 opened at equal angles on the lower surface of the connecting plate 4, and the connecting plate 4 is hollow, and the air inlet holes 5 are interconnected through the connecting plate 4 and the connecting holes 6; the connecting holes 6 are arranged at equal angles on the upper surface of the connecting plate 4, and the space above the connecting plate 4 is connected to the fixed cavity 8 through the air delivery channel 7, and the air delivery channel 7 and the fixed cavity 8 are both arranged in the lower mold 1; a fixed cylinder 9 is fixed at equal angles at the lower edge of the upper mold 2, and the fixed cylinder 9 coincides with the fixed cavity 8, and the top of the fixed cylinder 9 and the exhaust channel 10 The upper and lower molds 2 are connected, and the exhaust channel 10 is arranged in the upper mold 2; first, the lower mold 1 is molded with the upper mold 2, and after the two are combined, the fixed cylinder 9 is driven to coincide with the fixed cavity 8, and the connecting plate 4 is driven to be inside the cavity, and then the cavity is injected through the injection port above the upper mold 2. When the material enters the cavity, it will contact the connecting plate 4, and then push the connecting plate 4 to rise, and drive the movable rod 3 to slide on the upper mold 2. Through the contact between the connecting plate 4 and the material, the flatness of the material surface can be guaranteed, and then the uniform distribution of the material in the cavity can be guaranteed. When the connecting plate 4 is continuously rising, the gas in the space below it can enter the cavity of the connecting plate 4 through the air inlet 5, and then be transmitted to the gas delivery channel 7 from the connecting hole 6, and finally enter the fixed cylinder 9 through the fixed cavity 8, and can be discharged from the exhaust channel 10, completing the discharge of the gas inside the cavity, and improving the integrity of the product after molding.

[0028] Embodiment 2: In the process of injecting the existing injection mold material into the mold, it is not in a uniformly distributed state. Therefore, the gas discharge speed at different positions is different, and some gas is likely to remain in the mold, affecting the quality of subsequent product molding. Therefore, this embodiment adopts the following technical scheme, the vibration mechanism includes a fixed block 12 fixed in the fixed groove 11 at equal intervals, and the top of the movable rod 3 is in contact with the fixed block 12, and the cross-section of the movable rod 3 is an inverted "L"-shaped structure, and at the same time, a guide rod 13 is fixed to the side of the fixed block 12, and the end of the guide rod 13 away from the fixed block 12 is connected to the inner bottom surface of the upper mold 2; during the rising process of the connecting plate 4, the movable rod 3 can be driven to rise synchronously. At this time, the material has not yet contacted the connecting plate 4, and contacts the fixed block 12 through the rising of the connecting plate 4, thereby generating vibration, and the vibration force can be transmitted to the bottom surface of the upper mold 2 through the guide rod 13. In this way, the uniformity of material distribution can be improved by vibration during the injection molding process to ensure the smoothness of gas discharge. When the connecting plate 4 is not pushed, it can be lowered to the initial position by the resilience of the spring.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An exhaust structure of an injection mold for an automobile air-conditioning accessory, comprising a lower mold (1), an upper mold (2) being arranged above the lower mold (1), and an injection port being arranged on the surface of the upper mold (2); It is characterized in that include: A movable rod (3) is movable and penetrates the bottom of the upper mold (2); a connecting plate (4) is fixed to the bottom of the movable rod (3); and an exhaust mechanism is provided inside the connecting plate (4); the exhaust mechanism is connected to the lower edge of the upper mold (2) to realize the exhaust of the gas inside the lower mold (1); The vibration mechanism is arranged on the top of the movable rod (3), and a fixing groove (11) is provided on the upper mold (2) outside the movable rod (3).

2. The exhaust structure of the injection mold for automobile air-conditioning parts according to claim 1, characterized in that: The movable rod (3) and the upper mold (2) are slidably connected, and a spring for returning the movable rod (3) is wound around the outer side of the movable rod (3).

3. The exhaust structure of the injection mold for automobile air-conditioning parts according to claim 1, characterized in that: The connecting plate (4) is annular, and the inner diameter of the connecting plate (4) is equal to the outer diameter of the lower end of the upper mold (2), and the outer diameter of the connecting plate (4) is equal to the inner diameter of the lower mold (1).

4. The exhaust structure of the injection mold for automobile air-conditioning parts according to claim 1, characterized in that: The exhaust mechanism comprises air inlet holes (5) which are opened at equal angles on the lower surface of the connecting plate (4), the connecting plate (4) is hollow inside, and the air inlet holes (5) are interconnected through the connecting plate (4) and the connecting hole (6).

5. The exhaust structure of the injection mold for automobile air-conditioning parts according to claim 4, characterized in that: The connection holes (6) are arranged at equal angles on the upper surface of the connection plate (4), and the space above the connection plate (4) is connected through the gas delivery channel (7) and the fixed cavity (8), and the gas delivery channel (7) and the fixed cavity (8) are both arranged in the lower mold (1).

6. The exhaust structure of the injection mold for automobile air-conditioning parts according to claim 5, characterized in that: A fixing cylinder (9) is fixed at an equal angle on the lower edge of the upper mold (2), the fixing cylinder (9) and the fixing cavity (8) are matched, and the top of the fixing cylinder (9) is connected to the exhaust channel (10), and the exhaust channel (10) is arranged in the upper mold (2).

7. The exhaust structure of an injection mold for an automobile air-conditioning part according to claim 1, characterized in that: The vibration mechanism comprises fixed blocks (12) fixed in fixed grooves (11) at equal intervals, and the top of the movable rod (3) contacts the fixed block (12), and the cross-section of the movable rod (3) is an inverted "L"-shaped structure. At the same time, a guide rod (13) is fixed to the side of the fixed block (12), and the end of the guide rod (13) away from the fixed block (12) is connected to the inner bottom surface of the upper mold (2).

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