CN215661337U

CN215661337U - Preheating device of shock insulation rubber support

Info

Publication number: CN215661337U
Application number: CN202120269333.XU
Authority: CN
Inventors: 唐军辉; 张保生; 晏红卫; 包胜军; 庾光忠; 李斌; 杨坤; 郭梦云
Original assignee: Zhuzhou Times New Material Technology Co Ltd
Current assignee: Zhuzhou Times New Material Technology Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-01-28
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a preheating device of a shock insulation rubber support, which comprises a heating chamber, a hanging shaft, an electromagnetic coil, an electric control cabinet and a temperature measuring unit, wherein the electromagnetic coil is positioned in the heating chamber, the electric control cabinet is arranged on one side of the heating chamber and is used for electrifying the electromagnetic coil, the temperature measuring unit is arranged in the heating chamber, the hanging shaft is arranged in the electromagnetic coil, the hanging shaft comprises a shaft part and an annular limiting part positioned at the lower end of the shaft part, a rubber sheet and a steel plate of the shock insulation rubber support are sleeved on the shaft part and supported on the limiting part, and the rubber sheet and the steel plate are alternately arranged in an overlapped mode from top to bottom. According to the utility model, the alternating magnetic field is generated to directly act on the product, eddy current heating is formed in the steel plate, the temperature rise of the shock insulation support can be realized in a short time, the production efficiency of the shock insulation support is greatly improved, the energy is saved, the vulcanization uniformity of the shock insulation support is improved, the product quality is improved, and the production efficiency of the rubber support is improved.

Description

Preheating device of shock insulation rubber support

Technical Field

The utility model relates to the technical field of manufacturing of shock insulation rubber supports, in particular to a preheating device of a shock insulation rubber support.

Background

The building vibration isolation rubber support is a structure formed by alternately laminating thin rubber sheets and thin steel sheets, and generally has 10-40 layers or more. Before vulcanization, the thin rubber sheet and the thin steel plate are stacked together, and then the thin rubber sheet and the thin steel plate are placed into a mold for heating, pressurizing and vulcanizing molding, wherein the vulcanizing pressure is more than 15 MPa. With the application of large bridges and buildings, the size of the shock insulation rubber support tends to be large. Rubber is a hot poor conductor, and needs a long time when reaching the positive vulcanization in the large-size rubber shock insulation support, and meanwhile, the temperature difference of the inner layer and the outer layer of the product is increased, so that the difference of the vulcanization uniformity of the inner layer and the outer layer is inevitably brought, and the quality of the product is influenced.

At present, the vulcanization process of the shock insulation support still adopts low-temperature long-time vulcanization, namely, a steel plate and a rubber sheet are arranged in a preheated mould at normal temperature, and the low-temperature long-time vulcanization is carried out under the pressure and heat conditions of a flat vulcanizing machine. The upper and lower heating modes, the heat transfer path passes through the rubber layer, which is the path with the largest thermal resistance, hinders the heat conduction, easily causes uneven heating in the vulcanization process, has long vulcanization time and low production efficiency. The problem of uneven heating is solved to a certain extent by adding peripheral heating in the technical scheme, but because a gap exists between the mold and the shock insulation support, particularly under the condition of pressure, alternating current overflows to the periphery during heating vulcanization, a rubber mold is formed between the support and the mold, and the heating of the shock insulation support by the mold is also hindered. The technical scheme who improves, at mould inner wall embedding electromagnetic induction coil, the baffle to product inside heats, the low problem of heat transfer efficiency who heats around the mould outward appearance has been solved to a certain extent, this technical scheme, improve the heating efficiency of product, but there is 10mm rubber layer between baffle and the mould, the utilization ratio in electromagnetic induction magnetic field has been reduced, and simultaneously, this technical scheme has increased the manufacturing cost of mould by a wide margin, and the solenoid of embedding mould inner wall is under great vulcanization pressure, and service life shortens greatly, and use cost has also greatly been promoted.

Preheating rubber and a steel plate before vulcanization molding of the vibration isolation rubber support is an effective means for shortening vulcanization molding time and reducing temperature difference of inner and outer layer rubber by improving the temperature of the vibration isolation support before vulcanization. The existing technical scheme is that a steel plate and a film of a seismic isolation support are placed in a blast oven or a drying room to be preheated, air is used as a heating medium, heat in the oven is transferred to the steel plate and the film of the seismic isolation support through air convection, the heating time is long, the energy consumption is high, and the production efficiency is difficult to remarkably improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a preheating device for a shock insulation rubber support, which can quickly improve the temperature of the shock insulation support and solve the problems of long vulcanization time and uneven vulcanization of the shock insulation support.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a preheating device of shock insulation rubber support, includes heating chamber, hangs axle, solenoid, automatically controlled cabinet and temperature unit, solenoid is located the heating chamber, automatically controlled cabinet is located heating chamber one side and is used for the solenoid circular telegram, in the heating chamber is located to the temperature unit, hang the axle and arrange in the solenoid, hang the axle and include the axial region and be located the spacing portion of axial region lower extreme, the film and the steel sheet cover of shock insulation rubber support are in axial region and support in spacing portion, film and steel sheet coincide in turn from top to bottom are arranged.

As a further improvement of the above technical solution, an electromagnetic shielding layer is provided on an outer wall surface of the heating chamber.

As a further improvement of the technical scheme, a heat-insulating layer is arranged on the outer wall surface of the heating chamber.

As a further improvement of the technical scheme, the electromagnetic coils are provided with a plurality of groups, and each group is independently electrified by the electric control cabinet.

As a further improvement of the technical scheme, the electromagnetic coil is a hollow copper pipe which can be introduced with a cooling medium.

As a further improvement of the above technical scheme, a positioning pin is arranged at the bottom of the heating chamber, a positioning hole matched with the positioning pin is arranged at the bottom of the limiting portion, or a positioning hole is arranged at the bottom of the heating chamber, and a positioning pin matched with the positioning hole is arranged at the bottom of the limiting portion.

As a further improvement of the technical scheme, the bottom of the heating chamber is provided with a positioning rotating mechanism, the positioning rotating mechanism comprises a rotary table and a positioning pin arranged on the rotary table, and the bottom of the limiting part is provided with a positioning hole matched with the positioning pin.

As a further improvement of the technical scheme, the bottom of the heating chamber is provided with a positioning lifting mechanism, the positioning lifting mechanism comprises a lifting platform and a positioning pin arranged on the lifting platform, and the bottom of the limiting part is provided with a positioning hole matched with the positioning pin.

As a further improvement of the technical scheme, the heating chamber is a circular ring-shaped cavity.

As a further improvement of the technical scheme, the hanging shaft is a mandrel of the mold, and the hanging shaft is placed in the vulcanization mold in the vulcanization molding process.

As a further improvement of the technical scheme, the implementation process comprises the steps that the rubber sheets and the steel plates are alternately overlapped and sleeved on the mandrel up and down to form a shock insulation support blank, the blank is hung into the preheating device to reach a set temperature, and the blank can be directly hung into the die to be vulcanized and formed.

As a further improvement of the technical scheme, the clearance between the blank body of the shock insulation support and the annular cavity is 1-30 mm.

The utility model provides a preheating device of shock insulation rubber support, includes heating chamber, hanging axle, light wave or infrared heater, automatically controlled cabinet and temperature measuring unit, light wave or far infrared heater are located the inner wall of heating chamber, automatically controlled cabinet is located heating chamber one side and is used for the circular telegram to light wave or far infrared heater, temperature measuring unit locates in the heating chamber, the hanging axle is arranged in the heating chamber, the hanging axle includes the axial region and is located the spacing portion of axial region lower extreme, the film and the steel sheet cover of shock insulation rubber support are in the axial region and are supported in spacing portion, film and steel sheet coincide in turn from top to bottom are arranged.

Compared with the prior art, the utility model has the advantages that:

the preheating device for the shock insulation rubber support is simple in structure, generates the alternating magnetic field to directly act on a product, forms eddy current heating in an iron piece in the product, can realize temperature rise of the shock insulation support in a short time, greatly improves production efficiency of the shock insulation support, saves energy, improves vulcanization uniformity of the shock insulation support, improves product quality and improves production efficiency of the rubber support. The energy field heating method is utilized, energy loss of a heat transfer medium is not needed, and compared with a traditional oven, the energy-saving and efficient baking oven is more energy-saving and efficient, and the energy utilization rate is high. Compared with heating in the mold, the utility model heats the product to the temperature near the rubber vulcanization starting temperature at the outside, shortens the heating time of the product in the mold and improves the production efficiency.

Drawings

Fig. 1 is a schematic front view of a preheating device according to embodiment 1 of the present invention.

Fig. 2 is a schematic top view of a preheating apparatus according to embodiment 1 of the present invention.

The reference numerals in the figures denote:

1. a heating chamber; 2. a hanging shaft; 21. a shaft portion; 22. a limiting part; 3. an electromagnetic coil; 4. an electric control cabinet; 5. a film; 6. a steel plate; 71. an electromagnetic shielding layer; 72. a heat-insulating layer; 8. and a positioning pin.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples of the specification.

Example 1

As shown in fig. 1 and 2, the preheating device for the vibration isolation rubber bearing of the embodiment includes a heating chamber 1, a hanging shaft 2, an electromagnetic coil 3, an electric control cabinet 4 and a temperature measuring unit, wherein the electromagnetic coil 3 is located in the heating chamber 1, the electric control cabinet 4 is arranged on one side of the heating chamber 1 and used for electrifying the electromagnetic coil 3, the temperature measuring unit is arranged in the heating chamber 1, the hanging shaft 2 is arranged in the electromagnetic coil 3, the hanging shaft 2 includes a shaft portion 21 and a limiting portion 22 located at the lower end of the shaft portion 21, a rubber sheet 5 and a steel sheet 6 of the vibration isolation rubber bearing are sleeved on the shaft portion 21 and supported on the limiting portion 22, and the rubber sheet 5 and the steel sheet 6 are alternately overlapped up and down.

A magnetron composed of a plurality of electromagnetic coils 3 is arranged in the heating chamber 1 and is connected with a medium-high frequency control power supply in the electric control cabinet 4 through a lead. Hang 2 diameters of axle slightly to be less than

film

5 and 6 centre bore diameters of steel sheet, the preferred 0.2 ~ 1mm of two difference, so that the film 5 and the steel sheet 6 of isolation bearing can overlap and string into the idiosome on hanging axle 2, can hang isolation bearing idiosome through hanging axle 2 and then put into heating chamber 1, act on solenoid 3 through control power output intermediate frequency current, heat isolation bearing idiosome in order to produce alternating magnetic field, the whole direct action of alternating induction magnetic field that solenoid 3 produced is steel sheet 6 (the stiffening partition plate) in the isolation bearing, directly heat the product, the heat passes through 6 transmissions of steel sheet to center and transmits for adjacent film 5, heat transfer efficiency increases by a wide margin, can shorten heat time greatly. The temperature measuring unit is preferably a multi-path infrared temperature measuring device and can feed back the temperature of the shock insulation support blank (or the steel plate 6) in real time;

this preheating device of shock insulation rubber support simple structure through producing on alternating magnetic field direct action product, forms the vortex heating in the iron part in the product, can realize shock insulation support intensification in the short time, improves shock insulation support production efficiency by a wide margin to save the energy, improve shock insulation support vulcanization homogeneity, improve product quality, improve rubber support production efficiency. The energy field heating method is utilized, energy loss of a heat transfer medium is not needed, and compared with a traditional oven, the energy-saving and efficient baking oven is more energy-saving and efficient, and the energy utilization rate is high. Compare and heat in the mould inside, this technical scheme is near outside heating the product to the rubber begins vulcanization temperature, shortens product heating time in the mould, improves production efficiency.

In this embodiment, the electromagnetic shield layer 71 is provided on the outer wall surface of the heating chamber 1. The outer wall of the heating chamber 1 is provided with a heat-insulating layer 72.

In the embodiment, a group of electromagnetic coils 3 are arranged and are independently electrified by the electric control cabinet 4. Each group includes a helical electromagnetic coil 3. In other embodiments, a plurality of sets of electromagnetic coils 3, typically 1 to 5 sets of coils, may be provided, each set of coils being controlled by the control power supply. The electromagnetic coil 3 is spiral, the two coils are not connected, different coils are connected with a control power supply, and the control power supply controls the output of each group of electromagnetic induction magnetic fields.

In the present embodiment, the electromagnetic coil 3 is preferably a hollow copper tube into which a cooling medium can be introduced, and into which cooling water can be introduced. It should be noted that in other embodiments, the electromagnetic coil 3 may have a solid structure.

In this embodiment, the electromagnetic coil 3 has a circular ring shape. The heating chamber 1 is a circular cavity. The diameter of the inner cavity of the circular ring-shaped cavity is 1-30mm larger than the diameter of the preheated rubber sheet 5 and the diameter of the preheated steel plate 6, particularly preferably any value within 5-10mm, and the height is preferably any value within 60-800 mm. It should be noted that the heating chamber 1 may also be a square annular cavity, and correspondingly, the electromagnetic coil 3 may also be square.

In this embodiment, the bottom of the heating chamber 1 is provided with a positioning pin 8, the bottom of the limiting portion 22 is provided with a positioning hole (not shown in the figure) matched with the positioning pin 8, and the positioning pin 8 is arranged at the center of the circular cavity to ensure that the preheated product is arranged at the center of the circular cavity. In other embodiments, a positioning hole may be provided in the bottom of the heating chamber 1, and the positioning pin 8 that fits into the positioning hole may be provided in the bottom of the stopper 22. In other embodiments, a positioning rotation mechanism may be disposed at the bottom of the heating chamber 1, the positioning rotation mechanism includes a turntable and a positioning pin 8 disposed on the turntable, a positioning hole matched with the positioning pin 8 is disposed at the bottom of the limiting portion 22, and the turntable can drive the blank to rotate, so as to improve uniformity of the blank in the heating process. The bottom of the heating chamber 1 can also be provided with a positioning lifting mechanism, the positioning lifting mechanism comprises a lifting platform and a positioning pin 8 arranged on the lifting platform, and the bottom of the limiting part 22 is provided with a positioning hole matched with the positioning pin 8. The blank is driven to move in and out of the heating chamber 1 by the lifting platform. The elevating platform can also drive the induction heating cavity to move up and down, so that the blank can enter and exit the heating chamber.

The hanging shaft 2 is a mandrel of a mould, and is arranged in a vulcanization mould in the vulcanization forming process. The implementation process comprises the following steps: the rubber sheets and the steel plates are alternately overlapped and sleeved on the mandrel up and down to form a shock insulation support blank body, the blank body is hung in a preheating device to reach a set temperature, and the blank body can be directly hung in a mold to be vulcanized and molded.

In this embodiment, the gap between the blank of the isolation bearing and the circular ring-shaped cavity is 1-30 mm.

Example 2

The preheating device for the vibration isolation rubber support of the embodiment is different from the preheating device of the embodiment 1 only in that:

in this embodiment, the heating source of the heating chamber 1 is a light wave or infrared heater, the light wave or infrared heater is located on the inner wall of the heating chamber 1, and the electric control cabinet 4 is arranged on one side of the heating chamber 1 and used for electrifying the light wave or infrared heater. The film 5 and the steel plate 6 are placed in the center of the heating chamber 1.

The rest parts which are not described are basically the same as the embodiment 1, and are not described again.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a preheating device of shock insulation rubber support which characterized in that: including heating chamber (1), hanging axle (2), solenoid (3), automatically controlled cabinet (4) and temperature unit, solenoid (3) are located heating chamber (1), automatically controlled cabinet (4) are located heating chamber (1) one side and are used for circular telegram to solenoid (3), the temperature unit is located in heating chamber (1), hang axle (2) and arrange solenoid (3) in, hang axle (2) including axial region (21) and spacing portion (22) that are located axial region (21) lower extreme, rubber sheet (5) and steel sheet (6) cover of shock insulation rubber support are in axial region (21) and are supported on spacing portion (22), rubber sheet (5) and steel sheet (6) are the coincide in turn from top to bottom and are arranged.

2. The preheating device for vibration-isolating rubber mounts according to claim 1, wherein: and an electromagnetic shielding layer (71) is arranged on the outer wall surface of the heating chamber (1).

3. The preheating device for vibration-isolating rubber mounts according to claim 1, wherein: and a heat-insulating layer (72) is arranged on the outer wall surface of the heating chamber (1).

4. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the electromagnetic coils (3) are arranged in multiple groups, and each group is independently electrified by the electric control cabinet (4).

5. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the electromagnetic coil (3) is a hollow copper pipe into which a cooling medium can be introduced.

6. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the bottom of heating chamber (1) is equipped with locating pin (8), the bottom of spacing portion (22) is equipped with locating pin (8) complex locating hole, perhaps the bottom of heating chamber (1) is equipped with the locating hole, the bottom of spacing portion (22) is equipped with locating hole complex locating pin (8).

7. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the bottom of heating chamber (1) is equipped with positioning rotary mechanism, positioning rotary mechanism includes the revolving stage and locates locating pin (8) on the revolving stage, the bottom of spacing portion (22) is equipped with the locating hole with locating pin (8) complex.

8. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the bottom of heating chamber (1) is equipped with location elevating system, location elevating system includes the elevating platform and locates locating pin (8) on the elevating platform, the bottom of spacing portion (22) is equipped with the locating hole with locating pin (8) complex.

9. The preheating device for vibration-isolating rubber mounts according to any one of claims 1 to 3, wherein: the heating chamber (1) is a circular ring-shaped cavity.

10. The utility model provides a preheating device of shock insulation rubber support which characterized in that: including heating chamber (1), hanging axle (2), light wave or infrared heater, automatically controlled cabinet (4) and temperature measuring unit, light wave or infrared heater are located the inner wall of heating chamber (1), automatically controlled cabinet (4) are located heating chamber (1) one side and are used for the circular telegram to light wave or infrared heater, temperature measuring unit locates in heating chamber (1), hang axle (2) and arrange in heating chamber (1), hang axle (2) including axial region (21) and spacing portion (22) that are located axial region (21) lower extreme, rubber sheet (5) and steel sheet (6) cover of shock insulation rubber support are in axial region (21) and are supported on spacing portion (22), rubber sheet (5) and steel sheet (6) are the coincide in turn from top to bottom and are arranged.