Rubber vulcanizing machine capable of preventing leakage of waste gas

Abstract

The utility model discloses a rubber vulcanizing machine capable of preventing waste gas from leaking, which relates to the technical field of vulcanizing machines and comprises a base, a vulcanizing machine body and a control cabinet are arranged on the base, and a protective cover is arranged on the base and positioned on the periphery of the vulcanizing machine body; the protective cover is provided with an exhaust hood at the top of the vulcanizing machine body, the exhaust hood is provided with a connecting pipe, and the connecting pipe is provided with an electromagnetic valve; two cover doors are symmetrically arranged on one side of the protective cover in a sliding mode, a travel switch is arranged on one of the two cover doors and used for controlling opening and closing of the electromagnetic valve, and a contact block matched with the travel switch is arranged on the other one of the two cover doors and used for controlling opening and closing of the electromagnetic valve. By arranging the exhaust hood, the electromagnetic valve, the hood door and the travel switch, waste gas generated by vulcanization can be exhausted in time, leakage of the waste gas to a laboratory is avoided, and the working environment in the laboratory is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vulcanizing machine technical field especially relates to a rubber vulcanizing machine of preventing waste gas exosmosis. BACKGROUND

[0002] Vulcanizing machine is a kind of machine for the vulcanization of various rubber and plastic, with functions of timing mold locking, automatic pressure compensation, automatic temperature control, automatic timing and alarm when time is up.Vulcanizing machine is of three types: electric heating, steam heating and heating by conducting oil.

[0003] Electromagnetic contactor includes coil and contact (divided into normally open contact and normally closed contact), and the opening and closing of contact are controlled by the on-off condition of coil.

[0004] The existing vulcanizing machine is usually open type when in use, for example, the utility model patent with announcement number CN 210308648 U and announcement date 2020.04.14 discloses a flat vulcanizing machine for laboratory, which comprises a base, a hydraulic cylinder is arranged on the upper end outer surface of the base, a middle seat is arranged on the upper end of the hydraulic cylinder, a top seat is arranged above the middle seat, heat insulation plates are arranged on the outer surfaces of the middle seat and the top seat, a heating disc is arranged on the outer surface of the heat insulation plate, a pressing plate is arranged on the outer surface of the heating disc, supports are arranged on the inner side of the middle seat close to the edge, an infrared ray generating device is arranged between the base and the top seat, and an infrared ray receiving device is arranged on one side of the infrared ray generating device.

[0005] The utility model can effectively avoid the situation of scalding or bruising during vulcanization process, and is safer to use, but the patent has a problem that the entire vulcanizing machine is not surrounded, and the whole vulcanizing machine is exposed outside, when high-temperature waste gas generated during vulcanization experiment is excreted in the entire laboratory, since rubber generates large irritating waste gas when heated and vulcanized, if the waste gas cannot be collected and discharged outside in time, the waste gas will seriously affect the working environment of the entire laboratory.

[0006] Therefore, a rubber vulcanizing machine for preventing waste gas exosmosis is needed, which is used for discharging waste gas generated during vulcanization experiment in time to ensure the working environment of laboratory. UTILITY MODEL CONTENT

[0007] In view of the above technical problems, the utility model provides a rubber vulcanizing machine for preventing waste gas exosmosis, which is used for solving the problem that the entire vulcanizing machine is exposed outside, when high-temperature waste gas generated during vulcanization experiment is excreted in the entire laboratory, if the waste gas cannot be collected and discharged outside in time, the waste gas will seriously affect the working environment of the entire laboratory.

[0008] The above technical purpose of the utility model is realized by the following technical scheme.

[0009] The utility model provides a rubber vulcanization machine of preventing waste gas from leaking, including base, be equipped with vulcanization machine body and control cabinet on the base, the periphery of vulcanization machine body is provided with the protective cover of base,

[0010] The protective cover is located on the top of the vulcanization machine body and is provided with an exhaust hood, the exhaust hood is provided with a connecting pipe, and the connecting pipe is provided with a solenoid valve.

[0011] One of the two cover doors is provided with a travel switch, which is used to control the opening and closing of the solenoid valve, and the other cover door is provided with a contact block matched with the travel switch.

[0012] Further, one of the two cover doors is provided with a magnetic block, and the cover door is provided with a sealing ring around the magnetic block. The thickness of the magnetic block is not greater than the thickness of the sealing ring.

[0013] Further, the exhaust hood is in a conical structure.

[0014] Further, the inner wall of the protective cover is provided with a fireproof and heat-insulating interlayer.

[0015] Further, the two cover doors are provided with handles.

[0016] Further, the inside of the vulcanization machine body is provided with slide rails on both sides, and a plurality of vulcanization plates are slidably arranged on the slide rails. The inner bottom of the vulcanization machine is provided with a pressure cylinder, and the output end of the pressure cylinder is connected to the bottom of the nearest vulcanization plate.

[0017] Further, the circuit of the travel switch is connected in series with an electromagnetic contactor and a solenoid valve.

[0018] Further, the solenoid valve includes a valve body and a valve flap, and the valve flap is provided with a gas pressure balance hole.

[0019] In summary, the beneficial technical effects of the utility model are:

[0020] (1) The protective cover can timely discharge the waste gas generated by the vulcanization machine body by connecting the exhaust hood with the main exhaust pipe of the laboratory, avoiding the diffusion of waste gas into the laboratory, thereby ensuring the working environment in the laboratory. At the same time, the travel switch is connected with the solenoid valve, and when the cover door is opened, the travel switch controls the solenoid valve to open to discharge the waste gas, and after the cover door is closed, the solenoid valve is closed to prevent the backflow of discharged waste gas.

[0021] (2) the magnetic block can adsorb and close two cover doors, prevent free opening, meanwhile, the sealing ring guarantees the sealing property of the protective cover after the cover doors are closed, and the thickness of the magnetic block is not greater than the thickness of the sealing ring, so that the magnetic block can adsorb and close the cover doors, and the sealing property is improved.

[0022] (3) the fireproof and heat-insulating interlayer arranged on the inner wall of the protective cover improves the heat-insulating property of the whole protective cover, reduces the heat loss rate during the vulcanization, guarantees the vulcanization efficiency, avoids the heat diffusion to the outside during the vulcanization, and avoids the influence on the experiment process caused by the temperature rise of the laboratory.

[0023] (4) the exhaust cover with the conical structure accelerates the gathering of the exhaust gas into the connecting pipe, and improves the exhaust efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the utility model;

[0025] Figure 2 is Figure 1 is a structural schematic view from another angle;

[0026] Figure 3 is Figure 1 is a structural schematic view of the exhaust cover hidden;

[0027] Figure 4 is Figure 1 is a schematic view of the protective cover and the exhaust cover hidden;

[0028] Figure 5 is Figure 2 is an enlarged schematic view of A part of the utility model;

[0029] Figure 6 is a circuit control schematic view between the travel switch and the electromagnetic valve;

[0030] Figure 7 is a cooperation schematic view of the electromagnetic valve in the closed state and the connecting pipe.

[0031] The drawing number: 1, base; 2, protective cover; 3, vulcanizing machine body; 4, control cabinet; 5, exhaust cover; 6, connecting pipe; 7, electromagnetic valve; 8, cover door; 9, handle; 10, travel switch; 11, contact block; 12, magnetic block; 13, sealing ring; 14, fireproof and heat-insulating interlayer; 15, vulcanizing plate; 16, slide rail; 17, pressure cylinder; 18, electromagnetic contactor; 19, valve flap; 20, air pressure balance hole. DETAILED DESCRIPTION

[0032] The utility model will be described clearly and completely in combination with examples.

[0033] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0034] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "arrange", "connect" and the like should be broadly understood. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Referring to the drawings Figures 1-5 , a rubber vulcanizing machine capable of preventing waste gas from leaking, comprising a base 1, a vulcanizing machine body 3 for experiments and a control cabinet 4 for controlling the vulcanizing machine body 3 are arranged on the base 1, a plurality of vulcanizing plates 15 for vulcanizing rubber are arranged in parallel on the slide rails 16 arranged in parallel in the vulcanizing machine body 3, and a pressure cylinder 17 is arranged at the bottom of the vulcanizing machine body 3, the output end of the pressure cylinder 17 is connected with the nearest vulcanizing plate 15, and the pressure cylinder 17 is used to exert an upward thrust on the vulcanizing plate 15 to realize the upward sliding of each vulcanizing plate 15 along the slide rails 16 and the closing to realize vulcanization during the vulcanization experiment, a protective cover 2 is arranged on the periphery of the vulcanizing machine body 3, the protective cover 2 is used to isolate the vulcanizing machine body 3 from the laboratory environment outside, a conical exhaust hood 5 is arranged at the top of the protective cover 2, a connecting pipe 6 is arranged at the bottom of the exhaust hood 5, the connecting pipe 6 is used to be connected with the main exhaust pipe of the laboratory, an electromagnetic valve 7 is arranged on the connecting pipe 6, the electromagnetic valve 7 comprises a valve body and a valve clack 19 rotatably connected with the valve body, a gas pressure balance hole 20 is arranged on the valve clack 19, the opening and closing are realized by rotating the valve clack 19, the electromagnetic valve 7 is used to control the opening and closing of the connecting pipe 6 and the main exhaust pipe, to prevent the waste gas in the main exhaust pipe from flowing back during vulcanization, and the waste gas generated by the vulcanizing machine body 3 enters the connecting pipe 6 under the action of negative pressure and is discharged from the main exhaust pipe during use, thereby avoiding the leakage of waste gas into the laboratory, causing pollution of the laboratory environment and affecting the experiment;

[0036] Two cover doors 8 are slidably arranged on one side of the protective cover 2 through a slide, and the cover doors 8 are used for conveniently placing the rubber to be vulcanized into the vulcanization plate 15, facilitating operation. A handle 9 for opening and closing the cover doors 8 is arranged on the cover doors 8. The two cover doors 8 are closed through the handle 9 during vulcanization to prevent the leakage of waste gas. One end of one of the cover doors 8 is provided with a magnetic block 12 for generating an adsorption effect with the other cover door 8. The magnetic block 12 can prevent the free opening of the cover door 8 during vulcanization to cause the leakage of waste gas. Meanwhile, a sealing ring 13 is arranged around the magnetic block 12. The thickness of the sealing ring 13 is not greater than the thickness of the magnetic block 12, so that the adsorption effect of the magnetic block 12 on the other cover door 8 is ensured, and the sealing performance of the entire protective cover 2 is improved.

[0037] The cover door 8 provided with the magnetic block 12 is further provided with a travel switch 10. The travel switch 10 is electrically connected with the electromagnetic valve 7 through an electromagnetic contactor, and is used for controlling the opening and closing of the electromagnetic valve 7. Meanwhile, a contact block 11 is arranged at a position corresponding to the contact of the travel switch 10 on the other cover door 8. When the two cover doors 8 are closed, the contact of the travel switch 10 first comes into contact with the contact block 11 and rotates by a certain angle. At this time, the travel switch 10 controls the electromagnetic valve 7 to be closed through the electromagnetic contactor 18. When the cover door 8 is opened, the travel switch 10 reversely acts to control the electromagnetic valve 7 to be opened. When the cover door 8 is opened, the airflow outside the laboratory enters the protective cover 2 and flows upward along the high-temperature waste gas generated during vulcanization through the connecting pipe 6 to the main exhaust pipe, so that the waste gas is discharged, and the environment of the laboratory is ensured.

[0038] As a rubber vulcanization machine for preventing the leakage of waste gas, a fireproof and heat-insulating layer 14 is arranged on the inner wall of the protective cover 2. The fireproof and heat-insulating layer 14 can reduce the heat loss rate of the vulcanization machine body 3 during vulcanization, thereby improving the vulcanization efficiency and avoiding the direct flow of a large amount of heat to the laboratory to cause the temperature inside the laboratory to rise and interfere with the experimenters.

[0039] In use, the connecting pipe 6 on the exhaust cover 5 is connected with the main exhaust pipe of the laboratory. Then, the two cover doors 8 are opened through the handle 9, and the rubber to be vulcanized is placed on the vulcanization plate 15 of the vulcanization machine body 3. Then, the cover doors 8 are closed, and the electromagnetic valve 7 is controlled to be closed through the travel switch 10 at the same time when the cover doors 8 are closed. Then, the pressure cylinder 17 on the vulcanization machine body 3 is used to close the vulcanization plates 15 to implement vulcanization. When the vulcanization is completed, the cover doors 8 are opened. When the cover doors 8 are opened, the contact of the travel switch 10 first separates from the contact block 11. At this time, the travel switch 10 acts and controls the electromagnetic valve 7 to be opened. At this time, the airflow outside the laboratory enters the protective cover 2 through the gap between the two cover doors 8, and the high-temperature waste gas is discharged to the outside under the negative pressure of the main exhaust pipe, thereby preventing the leakage of waste gas to the inside of the laboratory and ensuring the environment inside the laboratory.

[0040] Referring to the drawings Figure 6L1, L2, L3 are three-phase power supply, the travel switch 10, electromagnetic contactor 18, electromagnetic valve 7 are connected in series in the main circuit, at the same time electromagnetic valve 7 adopts normally open type, that is, after power off, it is closed, when the cover door 8 is opened, the travel switch 10 and electromagnetic contactor 18 are connected to the main circuit, and then the electromagnetic valve 7 is powered on to open, when the cover door 8 is closed, the travel switch 10 is disconnected, and the electromagnetic valve 7 is closed.

[0041] It should be noted that L2 and L3 are one in and one out of the circuit, that is, from L3 to L2, forming a closed loop.

[0042] Referring to the accompanying drawings Figure 7 As shown, in order to prevent the waste gas generated during vulcanization from gathering in the protective cover 2, causing the air pressure in the protective cover 2 to be greater than the air pressure inside the laboratory, and causing waste gas to overflow when the cover door 8 is opened, a gas pressure balance hole 20 is formed on the valve disc 19 of the electromagnetic valve 7, the valve disc 19 is closed during vulcanization, and the waste gas generated at this time can flow out of the gas pressure balance hole 20 in a small amount, achieving the effect of balancing the air pressure.

[0043] The above is only a preferred specific embodiment of the present application, and is not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rubber vulcanizing machine that prevents exhaust gas leakage, characterized in that: The application relates to a vulcanizing machine, which comprises a base (1) provided with a vulcanizing machine body (3) and a control cabinet (4), wherein a protective cover (2) is arranged at the periphery of the vulcanizing machine body (3); an exhaust cover (5) is arranged at the top of the protective cover (2) and is provided with a connecting pipe (6); the connecting pipe (6) is provided with an electromagnetic valve (7); one of the two cover doors (8) symmetrically arranged on one side of the protective cover (2) is provided with a travel switch (10) for controlling the opening and closing of the electromagnetic valve (7); the other cover door (8) is provided with a contact block (11) matched with the travel switch (10); one of the two cover doors (8) is provided with a magnetic block (12); the cover door (8) is provided with a sealing ring (13) around the magnetic block (12); the thickness of the magnetic block (12) is not greater than that of the sealing ring (13); the exhaust cover (5) has a conical structure; the inner wall of the protective cover (2) is provided with a fireproof and heat-insulating interlayer (14); the two cover doors (8) are provided with handles (9); the inside of the vulcanizing machine body (3) is provided with slide rails (16) arranged in parallel on both sides; a plurality of vulcanizing plates (15) are slidably arranged on the slide rails (16); a pressure cylinder (17) is arranged at the bottom of the vulcanizing machine; the output end of the pressure cylinder (17) is connected with the bottom of the nearest vulcanizing plate (15); the circuit of the travel switch (10) is connected in series with an electromagnetic contactor (18) and the electromagnetic valve (7); the electromagnetic valve (7) comprises a valve body and a valve flap (19); the valve flap (19) is provided with a gas pressure balance hole (20). ​ ​ 2. A rubber vulcanizer capable of preventing exhaust gas from leaking out, according to claim 1, characterized in that: ​ 3. A rubber vulcanizer preventing exhaust gas from leaking out according to claim 1, characterized in that: ​ 4. The rubber vulcanizer of claim 1, wherein: ​ 5. The rubber vulcanizer of claim 1, wherein: ​ 6. A rubber vulcanizer preventing exhaust gas leakage according to claim 1, characterized in that: ​ 7. A rubber vulcanizer preventing exhaust gas leakage according to claim 1, characterized in that: ​ 8. A rubber vulcanizer for preventing exhaust gas leakage according to claim 1, characterized in that: ​

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