Die assembly for protecting nitrogen spring

Abstract

The utility model discloses a die assembly for protecting a nitrogen spring, and relates to the technical field of forging equipment. The device comprises a base, a protective shell is fixedly connected to the top of the base, and a concave mold is arranged at the top in the protective shell; a protection assembly is arranged in an inner cavity of the protection shell and comprises a water tank. Through the electromagnetic valve arranged on the surface of the circulating pipe on one side of the water tank, circulating extraction of cooling water in the cooler in the water tank can be achieved, so that the cooling water flows around the nitrogen shell, the effective cooling effect is achieved, thermal expansion of nitrogen in the nitrogen shell due to too high temperature can be avoided, and the service life of the nitrogen shell is prolonged. And meanwhile, through the adjusting valve arranged on the surface of the ventilation pipe, when nitrogen in the nitrogen shell expands, redundant nitrogen can be exhausted, so that the pressure in the nitrogen shell is reduced, and the reliability and stability of the nitrogen shell in a high-temperature working environment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of forging equipment, especially relates to a mould assembly for protecting nitrogen spring. BACKGROUND

[0002] Nitrogen spring is a kind of mechanical device using nitrogen compression to provide elastic force, is widely used in the occasion needing to provide force, such as industrial machinery, automation equipment, automobile, aerospace etc., its working principle is based on the compressibility of gas, specifically is through filling nitrogen in the closed metal cylinder and sealing, forms certain internal pressure, when external pressure or stretch is applied, nitrogen is compressed in sealed cavity, spring provides restoring force, in turn, when external force is removed, nitrogen will expand, and spring restores to the original position by internal pressure.

[0003] The nitrogen spring in the prior art, when being used in hot forging die, a large amount of heat is generated in the working process of hot forging die, leads to the rapid temperature rise in the die, nitrogen in the nitrogen spring inside can expand, causes the increase of spring internal pressure, can cause the degradation of spring mechanical property, influences its normal function and stability, in addition, the sealing ring of nitrogen spring is usually made of plastic material, and the plastic sealing ring is easy to lose elasticity and sealing performance under high temperature, and the sealing ring can also be aged or deformed, leads to sealing failure, causes nitrogen leakage, influences the working efficiency and safety of whole equipment or system.

[0004] Therefore, the utility model provides a mould assembly for protecting nitrogen spring to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of mould assemblies for protecting nitrogen spring, and the cooperation of protection assembly and heat insulation assembly solves the nitrogen spring in the prior art, when being used in hot forging die, lack effective protection work, prone to affect the function of nitrogen spring Problem.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions.

[0007] The utility model discloses a mould assembly for protecting nitrogen spring, including base, the base top fixedly connected with protection shell, the protection shell inside top is provided with the concave mould, the protection shell inner chamber is provided with the protection assembly, and the protection assembly includes water tank, and the water tank fixedly connected in the protection shell inner chamber one side, the water tank top fixedly connected with cooler, and the cooler refrigeration end extends to the water tank inside, the water tank one side is connected with the circulation pipe, and the protection shell inner chamber other side fixedly connected with the air exchange warehouse, and the air exchange warehouse one side is connected with the air pipe, the protection shell inner chamber is provided with the heat insulating component, and the heat insulating component includes nitrogen shell, and the nitrogen shell inner chamber is provided with nitrogen spring structure, and the nitrogen spring structure free end fixedly connected with the contact disc, the contact disc all fixedly connected with the sealing washer around, and the contact disc inner chamber fixedly connected with vacuum heat insulating board.

[0008] The utility model further sets up, nitrogen shell all fixedly connected with support block around, and the circulation pipe surface is fixedly connected with support block top.

[0009] The utility model further sets up, and the sealing washer inner chamber fixedly connected with heat insulating pad, and the material of heat insulating pad is ceramic fibre.

[0010] The utility model further sets up, and the circulation pipe surface is installed with electromagnetic valve, and the air pipe one end is connected with nitrogen shell one side, and the air pipe surface is installed with regulating valve.

[0011] The utility model further sets up, and nitrogen shell one side fixedly connected with temperature sensor, and temperature sensor is used for detecting nitrogen shell inside temperature.

[0012] The utility model further sets up, and the protection shell top is equipped with the mouth that places, and the concave mould bottom passes through the mouth inner chamber and is contacted with the contact disc top.

[0013] The utility model further sets up, and the protection shell both sides are equipped with the vent, and the vent inner chamber fixedly connected with dust screen.

[0014] The utility model further sets up, and the water tank one side is connected with the water pipe, and the water pipe surface is installed with valve.

[0015] The utility model has the advantages of the following.

[0016] 1. The utility model discloses a circulating pipe surface electromagnetic valve setting at water tank one side, can realize the circulating extraction of the water cooled by cooler in water tank, thereby make cooling water flow around nitrogen shell, play the role of effective cooling, can avoid the nitrogen gas in nitrogen shell internal thermal expansion because of temperature is too high, further influence its performance and stability, simultaneously, through the adjusting valve setting on the surface of the gas exchange pipe, when the nitrogen gas in the nitrogen shell expands, the excess nitrogen gas can be discharged, thereby reduce the pressure in the nitrogen shell, ensure its reliability and stability under high temperature working environment.

[0017] 2. The utility model discloses a vacuum heat insulation board setting in the inner chamber of contact disc, can effectively isolate the heat generated in the working process of concave mould and nitrogen shell, thereby prevent the temperature in nitrogen shell internal too high, avoid the nitrogen shell performance decline or damage because of high temperature, in order to further enhance the heat insulation effect, the heat insulation pad of ceramic fiber material is fixedly connected in the sealing gasket of contact disc periphery, and the ceramic fiber has good high temperature resistance, can effectively reduce the damage of sealing gasket in high heat environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduces.

[0019] Figure 1 It is a kind of for protecting the perspective view of mould assembly of nitrogen gas spring.

[0020] Figure 2 It is a kind of for protecting the sectional view of protective shell in mould assembly of nitrogen gas spring.

[0021] Figure 3 It is a kind of for protecting the explosion view of internal structure of protective shell in mould assembly of nitrogen gas spring.

[0022] Figure 4 It is a kind of for protecting the explosion view of sealing gasket and contact disc in mould assembly of nitrogen gas spring.

[0023] Figure 5 It is a kind of for protecting the explosion view of nitrogen shell and gas exchange bin in mould assembly of nitrogen gas spring.

[0024] In the drawing: 1, base;2, protective shell;3, concave mould;4, water tank;5, cooler;6, circulating pipe;7, gas exchange bin;8, gas exchange pipe;9, nitrogen shell;10, nitrogen gas spring structure;11, contact disc;12, sealing gasket;13, vacuum heat insulation board;14, support block;15, heat insulation pad;16, electromagnetic valve;17, adjusting valve;18, temperature sensor;19, dust screen;20, water pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only some of the embodiments of the utility model, not all the embodiments.

[0026] Embodiment one

[0027] Please refer to Figures 1-5 The utility model discloses a mould assembly for protecting nitrogen spring, including base 1, the top of base 1 is fixedly connected with protective housing 2, and the inner top of protective housing 2 is provided with concave mould 3;The inner chamber of protective housing 2 is provided with a protection assembly, and the protection assembly comprises a water tank 4, which is fixedly connected to one side of the inner chamber of protective housing 2, and the top of water tank 4 is fixedly connected with a cooler 5, and the refrigeration end of cooler 5 extends to the inside of water tank 4, and one side of water tank 4 is communicated with a circulating pipe 6, and the other side of the inner chamber of protective housing 2 is fixedly connected with a gas exchange bin 7, and one side of gas exchange bin 7 is communicated with a gas exchange pipe 8;The inner chamber of protective housing 2 is provided with a heat insulation assembly, and the heat insulation assembly comprises a nitrogen shell 9, and the inner chamber of nitrogen shell 9 is provided with a nitrogen spring structure 10, and the free end of nitrogen spring structure 10 is fixedly connected with a contact disc 11, and the periphery of contact disc 11 is fixedly connected with a sealing gasket 12, and the inner chamber of contact disc 11 is fixedly connected with a vacuum heat insulation plate 13.

[0028] Specifically: concave mould 3 is used for hot forging work, and the principle of cooler 5 is that heat is conducted from a hot medium to a cooling medium through the surface of a heat exchanger, water in water tank 4 is pumped into cooler 5, cooled and then discharged back to water tank 4, so as to facilitate use, gas exchange bin 7 is used for collecting and temporarily storing nitrogen, a sealing groove is formed in the top of nitrogen shell 9, the surface of sealing gasket 12 is sealed in the inner chamber of the sealing groove, and vacuum heat insulation plate 13 can significantly reduce the heat conduction speed by forming a vacuum in a sealed space, so as to cut off the heat on the surface of concave mould 3.

[0029] Embodiment two

[0030] Please refer to Figures 1-5 On the basis of embodiment one, the periphery of nitrogen shell 9 is fixedly connected with a supporting block 14, the surface of circulating pipe 6 is fixedly connected with the top of supporting block 14, the inner chamber of sealing gasket 12 is fixedly connected with a heat insulation pad 15, the material of heat insulation pad 15 is ceramic fiber, an electromagnetic valve 16 is installed on the surface of circulating pipe 6, one end of gas exchange pipe 8 is communicated with one side of nitrogen shell 9, an adjusting valve 17 is installed on the surface of gas exchange pipe 8, a temperature sensor 18 is fixedly connected to one side of nitrogen shell 9, and the temperature sensor 18 is used for detecting the temperature in nitrogen shell 9, a placing opening is formed in the top of protective housing 2, the bottom of concave mould 3 is in contact with the top of contact disc 11 through the inner chamber of the placing opening, ventilation openings are formed in the two sides of protective housing 2, the inner chamber of the ventilation opening is fixedly connected with a dust screen 19, a water adding pipe 20 is communicated with one side of water tank 4, and a valve is installed on the surface of water adding pipe 20.

[0031] Specifically: support block 14 for supporting the circulation pipe 6, ceramic fiber has good high temperature performance, so as to ensure that the gasket 12 can not be deformed at high temperature, solenoid valve 16 can control the water tank 4 in the water to the circulation pipe 6, solenoid valve 16 can be monitored by temperature sensor 18 Automatic operation according to the data detected by temperature sensor 18, the regulating valve 17 can automatically control the amount of nitrogen in the nitrogen shell 9 according to the data detected by the temperature sensor 18, so as to prevent the amount of nitrogen in the nitrogen shell 9 from being too high or too low, the cavity around the placing port is provided with a partition plate, so as to separate the placing port from the inner cavity of the protective shell 2, so as to place the concave die 3, and the vent is used for heat dissipation in the protective shell 2.

[0032] The working principle of the utility model is: when the nitrogen spring is used in hot forging work, the concave die 3 generates heat during work, which can automatically make the solenoid valve 16 work through the monitoring of the temperature sensor 18, and the solenoid valve 16 works to draw the water cooled by the cooler 5 in the water tank 4 into the circulation pipe 6, which can cool the nitrogen shell 9 through the circulation pipe 6, so as to cool the nitrogen in the nitrogen shell 9, so as to prevent the nitrogen from expanding due to high temperature and affect the performance of the nitrogen spring structure 10, and the gasket 12 can be cooled, so as to prevent the surface temperature of the gasket 12 from being too high and affecting the sealing performance, when the temperature in the nitrogen shell 9 is too high, the regulating valve 17 is automatically worked through the monitoring of the temperature sensor 18, so as to draw the nitrogen in the nitrogen shell 9 into the air exchange warehouse 7 through the air exchange pipe 8, and store temporarily, and then send back after cooling, so as to adjust the air pressure in the nitrogen shell 9, so as to prevent the high air pressure from affecting the performance of the nitrogen spring structure 10.

[0033] When the concave die 3 surface generates high heat, the vacuum heat insulation plate 13 in the contact disc 11 placed by the concave die 3 can block the heat, so as to prevent a large amount of heat from being conducted into the nitrogen shell 9, and the heat insulation pad 15 of ceramic fiber material in the gasket 12 can block the heat, so as to prevent the gasket 12 from affecting the sealing property of the gasket 12 due to heat, resulting in nitrogen leakage.

[0034] The standard parts used in the utility model can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled through the control unit, the control circuit of the control unit, which can be realized through simple programming of the technical personnel in the field, and belongs to the public knowledge in the field, so the control mode and circuit connection in the utility model are not explained in detail.

[0035] The preferred embodiments disclosed above are only used to help describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode described, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the skilled in the art can well understand and utilize the utility model.

Claims

1. A mold assembly for protecting a nitrogen spring, comprising a base (1), characterized in that: The base (1) is fixedly connected to a protective shell (2) at the top, and a concave mold (3) is provided inside the top of the protective shell (2). The protective shell (2) is provided with a protective component in its inner cavity. The protective component includes a water tank (4). The water tank (4) is fixedly connected to one side of the inner cavity of the protective shell (2). A cooler (5) is fixedly connected to the top of the water tank (4). The cooling end of the cooler (5) extends into the water tank (4). A circulation pipe (6) is connected to one side of the water tank (4). A ventilation chamber (7) is fixedly connected to the other side of the inner cavity of the protective shell (2). A ventilation pipe (8) is connected to one side of the ventilation chamber (7). The protective shell (2) is provided with a heat insulation component in its inner cavity. The heat insulation component includes a nitrogen shell (9). The nitrogen shell (9) is provided with a nitrogen spring structure (10) in its inner cavity. A contact plate (11) is fixedly connected to the free end of the nitrogen spring structure (10). Sealing gaskets (12) are fixedly connected around the contact plate (11). A vacuum heat insulation plate (13) is fixedly connected to the inner cavity of the contact plate (11).

2. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: The nitrogen shell (9) is fixedly connected to support blocks (14) on all four sides, and the surface of the circulation pipe (6) is fixedly connected to the top of the support blocks (14).

3. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: The inner cavity of the sealing gasket (12) is fixedly connected to a heat insulation pad (15), and the heat insulation pad (15) is made of ceramic fiber.

4. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: A solenoid valve (16) is installed on the surface of the circulation pipe (6), one end of the air exchange pipe (8) is connected to one side of the nitrogen shell (9), and a regulating valve (17) is installed on the surface of the air exchange pipe (8).

5. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: A temperature sensor (18) is fixedly connected to one side of the nitrogen shell (9), and the temperature sensor (18) is used to detect the internal temperature of the nitrogen shell (9).

6. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: The protective shell (2) has a placement opening at the top, and the bottom of the concave mold (3) contacts the top of the contact plate (11) through the inner cavity of the placement opening.

7. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: Ventilation openings are provided on both sides of the protective shell (2), and a dustproof net (19) is fixedly connected to the inner cavity of the ventilation opening.

8. A mold assembly for protecting a nitrogen spring according to claim 1, characterized in that: The water tank (4) is connected to a water supply pipe (20) on one side, and a valve is installed on the surface of the water supply pipe (20).

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