Environment-friendly injection mold

Abstract

The utility model discloses an environment-friendly injection mold which comprises a top mold and a bottom mold, a sliding groove is formed in the peripheral wall of the top of the bottom mold, a fence is fixedly arranged on the peripheral side of the top mold in a sleeved mode, an exhaust mechanism is arranged on the upper side and the lower side of the top mold together, and a heat dissipation mechanism is arranged in the top mold. And an adsorption mechanism is arranged in the center of the bottom side of the top mold. When the improved injection mold is used, poisonous gas emitted when the injection mold is used can be sucked through mutual cooperation of an external air pump and an exhaust mechanism, and the poisonous gas is conveyed to a specific position to be discharged, so that the situation that the poisonous gas is emitted into external air of the device to affect the surrounding environment is avoided; and the gas flows and is blown to the heat dissipation mechanism, continuous cooling treatment is carried out on the top mold and the bottom mold, and therefore heat dissipation treatment of raw materials in the injection mold is assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an environmentally friendly injection mold. Background Art

[0002] Injection molds are important tools in the plastic processing industry, used to manufacture various plastic products. They have the characteristics of high precision, high efficiency and high degree of automation. The principle of injection molds is a key link in the plastic molding process, which involves injecting molten plastic into the mold and obtaining a plastic product of the desired shape after cooling and solidification.

[0003] When the existing injection mold is in use, as the raw materials are injected into the mold, toxic gases may be emitted outside the device and merged with the air outside the device to affect the surrounding environment, which may cause harm to the operator's body. Utility Model Content

[0004] The purpose of the utility model is to provide an environmentally friendly injection mold so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly injection mold, including a top mold and a bottom mold, a slide groove is provided on the outer peripheral wall of the top of the bottom mold, a surrounding block is provided on the outer peripheral fixed sleeve of the top mold, an exhaust mechanism is jointly arranged on the upper and lower sides of the top mold, a heat dissipation mechanism is arranged inside the top mold, and an adsorption mechanism is provided at the center position of the bottom side of the top mold.

[0006] Preferably, the exhaust mechanism includes an interface, a storage groove is opened in the top mold, the interface is arranged at the center position of the top side of the top mold, and the air inlet end of the interface is inserted into the storage groove and fixedly connected to the top mold, an air inlet groove is opened on the outer peripheral wall of the bottom end of the top mold, an air inlet hole is opened on the inner top wall of the air inlet groove, and the interior of the storage groove is connected with the interior of the air inlet groove through the air inlet hole.

[0007] Preferably, the heat dissipation mechanism includes a plurality of mesh plates arranged in a rectangular pad shape, wherein the plurality of mesh plates are arranged in the storage tank, and the bottom side of each mesh plate is fixedly connected to the inner bottom wall of the storage tank, and the top side of the mesh plate is in contact with the inner top wall of the storage tank, and the mesh plate is a heat conducting plate.

[0008] Preferably, a plurality of connecting rods are relatively arranged inside the mesh plate, and the bottom end of each connecting rod is fixedly connected to the inner bottom wall of the storage tank, the top end of the connecting rod is fixedly connected to the top of the top mold by bolts, and the interface is located between the plurality of connecting rods.

[0009] Preferably, the adsorption mechanism includes a circular hole, which is opened at the center position of the bottom side of the top mold, and the cross-section of the circular hole is cross-shaped. A piston plate with a T-shaped cross-section is arranged in the circular hole, and the outer peripheral side of the piston plate is in contact with the inner wall of the circular hole.

[0010] Preferably, a spring is provided between the piston plate and the inner top wall of the circular hole, and two ends of the spring are fixedly connected to the piston plate and the inner top wall of the circular hole respectively, and the bottom side of the piston plate is coplanar with the bottom side of the top mold.

[0011] The utility model has at least the following beneficial effects:

[0012] 1. When the improved injection mold is in use, the toxic gas emitted by the injection mold can be absorbed through the cooperation of the external air pump and the exhaust mechanism, and the toxic gas is transported to a specific location for discharge, so as to prevent the toxic gas from being emitted into the air outside the device and affecting the surrounding environment, thereby preventing the toxic gas from causing harm to the operator's body, and the flow of gas blows on the heat dissipation mechanism to continuously cool the top mold and the bottom mold, thereby assisting the heat dissipation of the raw materials in the injection mold;

[0013] 2. When the toxic gas is absorbed, a negative pressure cavity can be formed in the top mold, thereby exerting an adsorption force on the solidified raw material, adsorbing the cooled and solidified raw material on the top mold and moving it upward with the top mold, which facilitates the removal of the solidified raw material in the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the overall structure of the inverted middle top mold;

[0017] Figure 3 This is a schematic diagram of the internal structure of the top mold of the utility model;

[0018] Figure 4 For this utility model Figure 1 Front view of the internal structure of the middle top mold.

[0019] In the figure: 1. top mold; 2. bottom mold; 3. slide groove; 4. enclosure; 5. exhaust mechanism; 51. storage tank; 52. interface; 53. air inlet groove; 54. air inlet hole; 6. heat dissipation mechanism; 61. mesh plate; 62. connecting rod; 7. adsorption mechanism; 71. round hole; 72. piston plate; 73. spring. DETAILED DESCRIPTION

[0020] In order to make the technical solution and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The utility model provides a technical solution: Figure 1-4 The utility model discloses an environmentally friendly injection mold, including a top mold 1 and a bottom mold 2. A slide groove 3 is opened on the outer peripheral wall of the top of the bottom mold 2, a peripheral fixed sleeve of the top mold 1 is provided with a baffle 4, an exhaust mechanism 5 is jointly arranged on the upper and lower sides of the top mold 1, a heat dissipation mechanism 6 is arranged in the top mold 1, and an adsorption mechanism 7 is arranged at the center position of the bottom side of the top mold 1.

[0022] In this embodiment, when the improved injection mold is used, as the top mold 1 and the bottom mold 2 are closed, the enclosure 4 is inserted into the chute 3. Since there is only a very small gap between the inner wall of the enclosure 4 and the inner wall of the chute 3, it is difficult for the gas between the top mold 1 and the bottom mold to flow to the outside of the device;

[0023] After the top mold 1 and the bottom mold 2 are closed, the gas on the outer peripheral side of the gap between the top mold 1 and the bottom mold 2 is continuously absorbed through the cooperation of the external air pump and the exhaust mechanism 5, and the raw material is injected into the injection mold, and then the raw material is cooled and shaped, and then the toxic gas emitted when the injection mold is used is continuously absorbed, and the toxic gas is transported to a specific location for discharge, and the flow of the gas blows on the heat dissipation mechanism 6, and the top mold 1 and the bottom mold 2 are continuously cooled, thereby assisting the heat dissipation of the raw material in the injection mold;

[0024] After the above-mentioned raw materials are cooled and shaped, the air pump accelerates the gas absorption rate to form a stronger negative pressure cavity in the top mold 1, thereby exerting an adsorption force on the solidified raw materials, adsorbing the cooled and solidified raw materials on the top mold 1 and moving upward with the top mold 1. At this time, the operator can directly remove the solidified raw materials from the top mold 1.

[0025] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 4As shown, the exhaust mechanism 5 includes an interface 52, a storage groove 51 is provided in the top mold 1, the interface 52 is arranged at the center of the top side of the top mold 1, and the air inlet end of the interface 52 is inserted into the storage groove 51 and fixedly connected to the top mold 1, an air inlet groove 53 is provided on the outer peripheral wall of the bottom end of the top mold 1, an air inlet hole 54 is provided on the inner top wall of the air inlet groove 53, and the interior of the storage groove 51 is connected to the interior of the air inlet groove 53 through the air inlet hole 54;

[0026] In this embodiment, after the top mold 1 and the bottom mold 2 are closed, the external air pump continuously extracts the gas in the storage tank 51 through the interface 52, so that a negative pressure cavity is continuously formed in the storage tank 51, and at the same time, the gas in the air inlet groove 53 continuously flows into the storage tank 51 through the air inlet hole 54 to replenish the gas lost in the storage tank 51, so that a negative pressure cavity is continuously formed in the air inlet groove 53, and the outside air continuously flows into the air inlet groove 53 through the gap between the inner wall of the enclosure 4 and the inner wall of the slide groove 3 to replenish the lost gas in the air inlet groove 53, thereby forming a directional flow of gas, so that the gas between the top mold 1 and the bottom mold will hardly flow to the outside of the device;

[0027] It should be noted that the above-mentioned exhaust port 52 is connected to the air inlet end of the external air pump through a connecting pipe.

[0028] In a further preferred embodiment of the present invention, Figure 3 and Figure 4 As shown, the heat dissipation mechanism 6 includes a plurality of mesh plates 61 in a rectangular pad shape, and the plurality of mesh plates 61 are arranged in the storage tank 51, and the bottom side of each mesh plate 61 is fixedly connected to the inner bottom wall of the storage tank 51, and the top side of the mesh plate 61 is connected to the inner top wall of the storage tank 51, and the mesh plate 61 is a heat conducting plate;

[0029] In the present embodiment, when the gas is flowing in the storage tank 51, the gas is in full contact with the mesh plate 61 when passing through the holes of the mesh plate 61, so that the heat on the mesh plate 61 is quickly removed through the heat exchange between the gas and the mesh plate 61, and the top mold 1 and the bottom mold 2 are continuously cooled through the heat conduction between the bottom mold 2, the top mold 1 and the mesh plate 61, thereby assisting the cooling of the raw materials in the injection mold.

[0030] In a further preferred embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, a plurality of connecting rods 62 are relatively arranged in the mesh plate 61, and the bottom end of each connecting rod 62 is fixedly connected to the inner bottom wall of the storage tank 51, and the top end of the connecting rod 62 is fixedly connected to the top of the top mold 1 by bolts, and the interface 52 is located between the plurality of connecting rods 62;

[0031] In this embodiment, the connection rod 62 can be provided to connect and fix the bottom of the top mold 1 with the top of the top mold 1, thereby preventing the opening of the air inlet hole 54 from causing the top mold 1 to be divided into two halves and affecting the use of the top mold 1.

[0032] In a further preferred embodiment of the present invention, Figure 2 and Figure 4 As shown, the adsorption mechanism 7 includes a circular hole 71, which is opened at the center of the bottom side of the top mold 1, and the cross-section of the circular hole 71 is in a cross shape. A piston plate 72 with a T-shaped cross-section is arranged in the circular hole 71, and the outer peripheral side of the piston plate 72 is connected to the inner wall of the circular hole 71;

[0033] In this embodiment, after the raw material is cooled and shaped, the air pump accelerates the gas absorption rate in the storage tank 51. Since the air intake in the storage tank 51 is limited, the negative pressure intensity in the storage tank 51 increases, thereby pulling the piston plate 72 upward to move, and forming a negative pressure cavity in the bottom opening of the circular hole 71, so that the cooled and solidified raw material is adsorbed on the top mold 1 and moves upward with the top mold 1.

[0034] In a further preferred embodiment of the present invention, Figure 4 As shown, a spring 73 is provided between the piston plate 72 and the inner top wall of the circular hole 71, and the two ends of the spring 73 are fixedly connected to the piston plate 72 and the inner top wall of the circular hole 71, respectively, and the bottom side of the piston plate 72 is coplanar with the bottom side of the top mold 1;

[0035] In this embodiment, the setting of the spring 73 can continuously apply a thrust to the piston plate 72. When the piston plate 72 is not subjected to external force, the piston plate 72 always contacts the inner wall of the circular hole 71, and the bottom side of the piston plate 72 and the bottom side of the top mold 1 always form a complete coplanar plane, thereby avoiding the setting of the circular hole 71 affecting the use of the injection mold.

[0036] Working principle: When the improved injection mold is used, as the top mold 1 and the bottom mold 2 are closed, the enclosure 4 is inserted into the chute 3. Since there is only a very small gap between the inner wall of the enclosure 4 and the inner wall of the chute 3, it is difficult for the gas between the top mold 1 and the bottom mold to flow to the outside of the device;

[0037] After the top mold 1 and the bottom mold 2 are closed, the external air pump continuously extracts the gas in the storage tank 51 through the interface 52, so that a negative pressure cavity is continuously formed in the storage tank 51, and at the same time, the gas in the air inlet groove 53 continuously flows into the storage tank 51 through the air inlet hole 54 to replenish the gas lost in the storage tank 51, so that a negative pressure cavity is continuously formed in the air inlet groove 53, and the outside air continuously flows into the air inlet groove 53 through the gap between the inner wall of the enclosure 4 and the inner wall of the slide groove 3 to replenish the lost gas in the air inlet groove 53, thereby forming a directional flow of gas, so that the gas between the top mold 1 and the bottom mold is difficult to flow to the outside of the device;

[0038] After the above-mentioned directional gas flow line is formed, the raw material is injected into the injection mold according to the method of using the existing injection mold, and then the internal raw material is cooled and shaped. At this time, the toxic gas emitted by the raw material is sucked by the air pump together with the gas and discharged to a specific position or discharged to a gas harmless treatment device for gas harmless treatment. At the same time, during the process of the air flow flowing in the storage tank 51, the heat on the top mold 1 is quickly taken away through the mesh plate 61, which assists the cooling treatment of the raw material in the injection mold;

[0039] After the raw material is cooled and shaped, the air pump accelerates the suction rate of the gas in the storage tank 51. Since the air intake in the storage tank 51 is limited, the negative pressure intensity in the storage tank 51 increases, so that the suction force of the negative pressure chamber on the piston plate 72 offsets the thrust of the spring 73 on the piston plate 72, and pulls the piston plate 72 upward. At the same time, a negative pressure chamber is formed in the opening at the bottom end of the circular hole 71, and the cooled and solidified raw material is adsorbed on the top mold 1 and moves upward with the top mold 1. Then the operator stops the operation of the air pump. Due to the inflow of gas into the storage tank 51, the negative pressure intensity in the storage tank 51 decreases rapidly until the negative pressure chamber disappears. At this time, the operator can directly remove the solidified raw material from the top mold 1.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An environmentally friendly injection mold, comprising a top mold (1) and a bottom mold (2), characterized in that: A sliding groove (3) is provided on the outer peripheral wall of the top of the bottom mold (2), a retaining block (4) is provided on the outer peripheral fixed sleeve of the top mold (1), an exhaust mechanism (5) is provided on the upper and lower sides of the top mold (1), a heat dissipation mechanism (6) is provided inside the top mold (1), and an adsorption mechanism (7) is provided at the center of the bottom side of the top mold (1).

2. The environmentally friendly injection mold according to claim 1, characterized in that: The exhaust mechanism (5) comprises an interface (52), a storage groove (51) is provided in the top mold (1), the interface (52) is arranged at the center position of the top side of the top mold (1), and the air inlet end of the interface (52) is inserted into the storage groove (51) and fixedly connected to the top mold (1), an air inlet groove (53) is provided on the outer peripheral wall of the bottom end of the top mold (1), an air inlet hole (54) is provided on the inner top wall of the air inlet groove (53), and the interior of the storage groove (51) is connected to the interior of the air inlet groove (53) through the air inlet hole (54).

3. The environmentally friendly injection mold according to claim 2, characterized in that: The heat dissipation mechanism (6) comprises a plurality of mesh plates (61) in a rectangular pad shape. The plurality of mesh plates (61) are arranged in the storage groove (51), and the bottom side of each mesh plate (61) is fixedly connected to the inner bottom wall of the storage groove (51), and the top side of the mesh plate (61) is in contact with the inner top wall of the storage groove (51). The mesh plate (61) is a heat conducting plate.

4. The environmentally friendly injection mold according to claim 3, characterized in that: A plurality of connecting rods (62) are arranged relatively inside the mesh plate (61), and the bottom end of each connecting rod (62) is fixedly connected to the inner bottom wall of the storage tank (51), and the top end of the connecting rod (62) is fixedly connected to the top of the top mold (1) by bolts, and the interface (52) is located between the plurality of connecting rods (62).

5. The environmentally friendly injection mold according to claim 4, characterized in that: The adsorption mechanism (7) comprises a circular hole (71), the circular hole (71) is opened at the central position of the bottom side of the top mold (1), and the cross-section of the circular hole (71) is in the shape of a cross. A piston plate (72) with a T-shaped cross-section is arranged in the circular hole (71), and the outer peripheral wall of the piston plate (72) is in contact with the inner wall of the circular hole (71).

6. The environmentally friendly injection mold according to claim 5, characterized in that: A spring (73) is provided between the piston plate (72) and the inner top wall of the circular hole (71), and the two ends of the spring (73) are fixedly connected to the piston plate (72) and the inner top wall of the circular hole (71), respectively. The bottom side of the piston plate (72) is coplanar with the bottom side of the top mold (1).

Images