Rubber part injection mold

Abstract

The utility model discloses a rubber part injection mold, which belongs to the technical field of mold rubber sealing rubber strips, and comprises a lower mold, the four corners of the top of the lower mold are fixedly connected with vertical rods, the outer walls of the plurality of vertical rods are sleeved with an upper mold, a cavity is processed in the upper mold, and the inner walls of the two sides of the upper mold are communicated with connecting pipes. A first heat conduction plate is fixedly connected to the inner wall of the upper mold, a second heat conduction plate is arranged below the first heat conduction plate, and an inner mold is fixedly connected to the outer wall of the second heat conduction plate. According to the rubber part injection mold, through cooperation of the upper mold body, the cavity, the connecting pipe, the first heat conduction plate, the second heat conduction plate and the inner mold body, cooling water can be injected into the cavity through an external cold water conveying structure after machining is completed and before mold opening and part taking are conducted, and then through heat conduction among the first heat conduction plate, the second heat conduction plate and the inner mold body, cooling is achieved; and the rubber part is cooled, so that the demolding and part taking convenience can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber sealing rubber strip technical field, concretely is a kind of rubber part injection mold. BACKGROUND

[0002] Rubber sealing rubber strip is a kind of strip or strip parts using the elasticity and recovery of rubber, provide sealing, dustproof, waterproof, sound insulation, shock absorption and decorative effect between two or more components, it is usually installed on the groove or protrusion of a component, sealing function is realized by elastic compression with another contact component, when carrying out rubber sealing rubber strip production, then need to utilize rubber part injection mold;

[0003] The existing rubber part injection mold when using, since rubber needs to be vulcanized at 160 degrees-200 degrees high temperature, this leads to rubber sealing rubber strip after production own temperature is higher, and current production mold does not have good cooling structure, and in the short time of opening mold and taking piece, mold cavity surface is exposed to air, there is slight natural heat dissipation, but own temperature is still higher, thus leading to taking piece is more inconvenient. UTILITARIAN CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of rubber part injection mold, solve the existing rubber part injection mold when using, since rubber needs to be vulcanized at 160 degrees-200 degrees high temperature, this leads to rubber sealing rubber strip after production own temperature is higher, and current production mold does not have good cooling structure, and in the short time of opening mold and taking piece, mold cavity surface is exposed to air, there is slight natural heat dissipation, but own temperature is still higher, thus leading to taking piece is more inconvenient Problem.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of rubber part injection mold, including lower mould, the top four corners of the lower mould are all fixedly connected with vertical rod, the outer wall of multiple vertical rods is sleeved with upper mould, and cavity is processed in the inside of upper mould, the two side inner walls of upper mould are all communicated with connecting pipe, the inner wall of upper mould is fixedly connected with first heat conduction plate, the second heat conduction plate is provided below first heat conduction plate, the outer wall of second heat conduction plate is fixedly connected with inner mould, and inner mould is placed in the inside of lower mould, and injection cavity is processed in the top of inner mould.

[0006] Preferably, the inner wall of the upper mold is communicated with an injection pipe, and the injection pipe is communicated with an air extraction pipe on one side and above, and the inner wall of the air extraction pipe is communicated with a control valve.

[0007] Preferably, the cross section of the vertical rod is circular structure, and the outer wall is smooth plane.

[0008] Preferably, the inner wall of the lower mold is inserted with a plurality of heating rods, the outer wall of the plurality of heating rods is attached with a third heat conduction plate, the top of the third heat conduction plate is attached with the bottom of the inner mold, the inner wall of the inner mold is fixedly connected with a fourth heat conduction plate below, and the bottom of the fourth heat conduction plate is attached with the top of the third heat conduction plate.

[0009] Preferably, the outer wall of the inner mold is attached with a plurality of temperature sensors, and the outer wall of the plurality of temperature sensors is fixedly connected with the inner wall of the lower mold.

[0010] Beneficial effects

[0011] The rubber part injection mold has the following beneficial effects: the rubber part injection mold is matched with the upper mold, the cavity, the connecting pipe, the first heat conduction plate, the second heat conduction plate and the inner mold, so that the cavity can be injected with cooling water by using the external cooling water conveying structure before demolding and taking out the part after the processing is completed, then the rubber part is cooled by heat conduction between the first heat conduction plate, the second heat conduction plate and the inner mold, and thus the convenience of demolding and taking out the part can be greatly improved.

[0012] The rubber part injection mold has the following beneficial effects: the rubber part injection mold is matched with the upper mold, the cavity, the connecting pipe, the first heat conduction plate, the second heat conduction plate and the inner mold, so that the cavity can be injected with cooling water by using the external cooling water conveying structure before demolding and taking out the part after the processing is completed, then the rubber part is cooled by heat conduction between the first heat conduction plate, the second heat conduction plate and the inner mold, and thus the convenience of demolding and taking out the part can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is Figure 1 a top view of the lower mold, the inner mold and the injection cavity;

[0015] Figure 3 It is Figure 1 a bottom view of the upper mold and the connecting pipe;

[0016] Figure 4 It is a sectional view of the utility model;

[0017] Figure 5 It is Figure 4 a structural schematic view of the lower mold, the inner mold and the temperature sensor.

[0018] In the drawing: 1, lower mold; 2, upper mold; 3, inner mold; 4, injection cavity; 5, injection pipe; 6, air extraction pipe; 7, vertical rod; 8, connecting pipe; 9, heating rod; 10, second heat conduction plate; 11, cavity; 12, first heat conduction plate; 13, temperature sensor; 14, third heat conduction plate; 15, fourth heat conduction plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] By connecting the parts in the case in sequence, the specific connection and operation sequence should be referred to the working principle below, and the detailed connection means is the commonly known technology in the art, and the working principle and process are mainly introduced below.

[0021] The existing rubber part injection mold is used, because the rubber needs to be vulcanized at a high temperature of 160-200 degrees, which leads to a high temperature of the rubber sealing strip after production, and the current production mold does not have a good cooling structure, and the mold cavity surface is exposed to the air in the short time of mold opening and part taking, and there is slight natural heat dissipation, but the temperature is still high, so that the part taking is more inconvenient;

[0022] Therefore, the present application provides a rubber part injection mold, which can inject cooling water into the cavity by using the external cooling water conveying structure before machining and mold opening and part taking, and then cool and cool the rubber part by heat conduction between the first heat conduction plate, the second heat conduction plate and the inner mold, thereby greatly improving the convenience of demolding and part taking.

[0023] Embodiment one: by Figure 1 、 2 , 3, 4 and 5, a rubber part injection mold, comprising a lower mold 1, the top four corners of the lower mold 1 are fixedly connected with vertical rods 7, a plurality of vertical rods 7 are sleeved with an upper mold 2, and the inside of the upper mold 2 is processed with a cavity 11, the two side inner walls of the upper mold 2 are communicated with connecting pipes 8, the inner wall of the upper mold 2 is fixedly connected with a first heat conduction plate 12, the lower part of the first heat conduction plate 12 is provided with a second heat conduction plate 10, the outer wall of the second heat conduction plate 10 is fixedly connected with an inner mold 3, and the inner mold 3 is placed in the inside of the lower mold 1, and the top of the inner mold 3 is processed with an injection cavity 4;

[0024] In the implementation process, it is particularly worth noting that the case should be provided with a driving mechanism for adjusting the position of the upper mold 2. The structure of the hydraulic cylinder can be selected. The bolt fixing method can be used for installation and connection. Other installation methods can also be used. The case does not limit this. It should be noted that a heat insulation structure such as a heat insulation plate should be provided at the connection. The specific heat insulation method is not limited, and it can meet the use requirements. In this way, the influence of high temperature during vulcanization on the hydraulic cylinder can be avoided. The staff can produce rubber parts of different specifications by replacing the inner mold 3. The connection between the upper mold 2 and the inner mold 3 should be provided with a sealing gasket. The sealing gasket can improve the sealing performance between the upper mold 2 and the inner mold 3. The specific material of the sealing gasket is not limited, and it can meet the use requirements. The case should be provided with an external cooling water supply device cooperating with the connecting pipe 8, which at least includes a water tank, a circulating pump, a cooling compressor and two conduits. The two conduits can be connected with the connecting pipe 8 respectively, and one conduit is connected with the water tank, and the other is connected with the circulating pump. The circulating pump is installed in the water tank. The water in the water tank is pumped out by the circulating pump, and then delivered to the inside of the cavity 11, and then cooled. The cooling compressor is installed on the water tank, which can cool the cooling water in the water tank to ensure the cooling efficiency.

[0025] Further, the inner wall of the upper mold 2 is communicated with the injection pipe 5, and the side of the injection pipe 5 is communicated with the air exhaust pipe 6, and the inner wall of the air exhaust pipe 6 is communicated with the control valve.

[0026] In the implementation process, it is particularly worth noting that the external injection material can be injected into the inside of the injection cavity 4 through the injection pipe 5. The case should be provided with a vacuum pump cooperating with the air exhaust pipe 6. Before injection, the vacuum pump can exhaust the air in the injection cavity 4 through the air exhaust pipe 6 and the injection pipe 5, so as to avoid the existence of bubbles in the rubber part during injection.

[0027] Further, the cross section of the plurality of vertical rods 7 is circular structure, and the outer wall is smooth plane.

[0028] In the implementation process, it is particularly worth noting that the vertical rod 7 can limit the position between the upper mold 2 and the lower mold 1.

[0029] Further, the inner wall of the lower mold 1 is inserted with a plurality of heating rods 9, the outer wall of the plurality of heating rods 9 is attached with a third heat conducting plate 14, the top of the third heat conducting plate 14 is attached with the bottom of the inner mold 3, the inner wall of the inner mold 3 is fixedly connected with a fourth heat conducting plate 15 below, and the bottom of the fourth heat conducting plate 15 is attached with the top of the third heat conducting plate 14.

[0030] In the implementation process, it is worth noting that the model of the heating rod 9 can be selected as Φ20300 220V800W, and the specific model is not limited, which can meet the use requirement. The heating rod 9 can heat the third heat conduction plate 14, and then heat the inner mold 3 through the heat conduction of the fourth heat conduction plate 15. The fourth heat conduction plate 15 can reduce the conduction thickness of the inner mold 3.

[0031] Further, the outer wall of the inner mold 3 is attached with a plurality of temperature sensors 13, and the outer wall of the plurality of temperature sensors 13 is fixedly connected with the inner wall of the lower mold 1.

[0032] In the implementation process, it is worth noting that the model of the temperature sensor 13 can be selected as PT100 / PT1000, and the specific model is not limited, which can meet the use requirement. The probe part of the temperature sensor 13 is installed in the inside of the lower mold 1. The temperature sensor 13 and the heating rod 9 can cooperate, that is, the detection range of the temperature sensor 13 is the working range of the heating rod 9, and the heating range of the heating rod 9 meets the working background of the case. The temperature sensor 13 can detect the heating temperature of the inner mold 3, and the case should be provided with an external display device cooperating with the temperature sensor 13, so that the working personnel can more conveniently read the detection signal of the temperature sensor 13.

[0033] Specifically, when using the rubber part injection mold, the working personnel puts the upper mold 2 on the outer wall of the vertical rod 7, then connects the upper mold 2 with the external driving equipment, and then adjusts the position height of the upper mold 2 by using the external driving equipment until the upper mold 2 is tightly attached with the lower mold 1 and the inner mold 3. Then connect the injection pipe 5 with the external injection equipment (the external injection equipment should have a control valve to close the injection pipe 5), then connect the external vacuum pump with the air exhaust pipe 6, then start the external vacuum pump, which can exhaust the air in the injection cavity 4. Then close the control valve of the air exhaust pipe 6, then start the heating rod 9, which can preheat the inner mold 3 through the third heat conduction plate 14 and the fourth heat conduction plate 15 (that is, the inner mold 3 reaches the appropriate injection temperature), then the injection work can be carried out. At this time, the material can enter the inside of the injection cavity 4, and the production of the rubber part can be carried out. The temperature sensor 13 can monitor the heating temperature of the inner mold 3 in real time, so that the working personnel can better adjust the working state of the heating rod 9. When vulcanization is completed, the heating rod 9 is turned off, then the external cooling water supply device is connected with the connecting pipe 8, then the cooling water is injected into the inside of the cavity 11 by using the external cooling water supply device, and then the rubber part is cooled by the first heat conduction plate 12 and the second heat conduction plate 10. When the cooling is completed, the mold can be removed and the part can be taken out.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Rubber part injection mold comprising a lower mold (1), characterized in that: The bottom of the mold (1) is fixedly connected with vertical rod (7) in four corners, a plurality of vertical rod (7) is sleeved with the outer wall of the upper mold (2), and the inside of the upper mold (2) is processed with cavity (11), the both sides of the inner wall of the upper mold (2) are communicated with connecting pipe (8), the inner wall of the upper mold (2) is fixedly connected with first heat conduction plate (12), the lower part of the first heat conduction plate (12) is provided with second heat conduction plate (10), the outer wall of the second heat conduction plate (10) is fixedly connected with inner mold (3), and the inner mold (3) is placed in the inside of the lower mold (1), the top of the inner mold (3) is processed with injection cavity (4).

2. A rubber article injection mold according to claim 1, characterized in that: The inner wall of the upper mold (2) is communicated with injection tube (5), and the side of injection tube (5) is communicated with suction tube (6) above, and the inner wall of suction tube (6) is communicated with control valve.

3. The rubber article injection mold of claim 1, wherein: The cross section of the vertical rod (7) is circular structure, and the outer wall is smooth plane.

4. The rubber article injection mold of claim 1, wherein: The inner wall of the lower mold (1) is inserted with a plurality of heating rods (9), the outer wall of the heating rod (9) is attached with third heat conduction plate (14), the top of the third heat conduction plate (14) is attached with the bottom of the inner mold (3), the inner wall of the inner mold (3) is fixedly connected with fourth heat conduction plate (15) below, and the bottom of the fourth heat conduction plate (15) is attached with the top of the third heat conduction plate (14).

5. The rubber article injection mold of claim 1, wherein: The outer wall of the inner mold (3) is attached with a plurality of temperature sensors (13), and the outer wall of the temperature sensor (13) is fixedly connected with the inner wall of the lower mold (1).

6. The rubber article injection mold of claim 1, wherein: The connecting part of the upper mold (2) and the inner mold (3) should be provided with sealing pad. The connecting part of the upper mold (2) and the inner mold (3) should be provided with sealing pad.

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