CN212331817U

CN212331817U - A cold wind pallet for twining production of rubber tube

Info

Publication number: CN212331817U
Application number: CN202020982114.1U
Authority: CN
Inventors: 朱衍飞; 朱翼升
Original assignee: Anhui Haosi Hydraulic Fluid Technology Co ltd
Current assignee: Anhui Haosi Hydraulic Fluid Technology Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-01-12
Anticipated expiration: 2030-06-02

Abstract

A cold air stand for rubber tube winding production comprises a stand arranged along the conveying direction of an inner rubber layer of a rubber tube, wherein a plurality of inner rubber supporting rollers which are sequentially arranged along the conveying direction to convey the inner rubber layer are arranged on the top surface of the stand; one side of the heat-insulating cavity is provided with an open opening along the conveying direction, a door curtain made of soft glass is hung along the upper edge of the open opening, and the lower edge of the door curtain is hung to the top surface of the rack to shield the open opening; the rack is internally provided with a cold air duct arranged along the conveying direction, the top surface of the cold air duct is provided with a plurality of air ports distributed along the conveying direction, and the air ports are respectively communicated with the bottom of the heat preservation cavity. Compared with the common low-temperature winding mode in the prior art, the normal-temperature winding mode avoids the generation of a large amount of condensed water, ensures the quality of products, enables the winding machine to exert the speed potential to the utmost, greatly saves the cost and does not occupy extra space.

Description

A cold wind pallet for twining production of rubber tube

Technical Field

The utility model relates to a winding rubber tube production technology, specifically a cold wind pallet for winding rubber tube production.

Background

The rubber pipe is a tubular rubber product for conveying gas, liquid, slurry or granular material, and is formed through extrusion in an extruder. In order to improve the pressure resistance, pulse resistance and other properties of the rubber hose to obtain a reinforced rubber hose, a common technique is to continuously and axially compound a reinforcing layer formed by winding high-strength copper-plated steel wires in the pipe wall along the pipe body, and the reinforcing layer is a wound rubber hose.

The winding rubber pipe generally consists of an inner rubber layer, a reinforcing layer and an outer rubber layer, and can be manufactured by adopting a hard core process, and the general production flow is as follows: extruding out inner glue → sleeving core rod → winding steel wire → wrapping outer glue. In the existing production process of the winding rubber tube, a stand arranged along the conveying direction of the rubber tube is mostly adopted to transmit the inner rubber layer sleeved with the steel core rod to a winding machine. In order to prevent the steel wires of the reinforcing layer from being pulled into the inner rubber layer due to tension in the winding production to cause the breakage of the inner rubber layer, which leads to the leakage of the rubber pipe finished product, a set of refrigeration equipment is generally arranged in front of the winding machine, so that the inner rubber enters the winding machine to wind the steel wire layer under the condition of freeze hardening.

In the prior art, the equipment commonly used for the process is a Freon refrigerator or liquid nitrogen. The applicant has found that the current process has significant drawbacks:

(1) the refrigeration temperature is low, and the product performance is easy to cause poor.

The common freezing temperature is 50 ℃ below zero to 100 ℃ below zero, or even lower, and the specific value is influenced by the factors of the stiffness and the hardness of the inner rubber layer, the paying-off tension stability of a winding machine and the like. The low temperature can cause a large amount of condensed water to be condensed on the surface of the steel wire, so that the copper-plated steel wire is corroded, the chemical reaction between the copper-plated steel wire and the rubber layer is influenced, the layers of the rubber tube cannot effectively form a firm whole, and the design and use performance of the rubber tube is greatly reduced.

(2) The production line speed is limited.

The freezer and the liquid nitrogen freezing method are production processes in which the winding is performed while freezing. The inner glue with the straight core rod linearly and sequentially passes through the refrigerating machine and the winding machine under the action of the tractor, but due to the influence of factors such as workshop space layout and the like, the effective refrigerating distance of the equipment is not longer, the heat conducting performance of the inner glue is poor, and the inner glue is required to stay in the refrigerating cavity for a long time. To ensure product quality, the line speed must be controlled to ensure minimum residence time. The conventional winding machine can reach 90 r/min generally, but can only be maintained at about 50-60 r/min in actual production, which is a great waste for the potential of a production line.

(3) The use of freezers and liquid nitrogen cooling is costly.

The refrigerating mechanism of the refrigerator is a high-energy consumption process, and the equipment investment in the early stage and the use cost in the later stage of the liquid nitrogen are also high.

(4) The freezer occupies a large space, and the length utilization rate of the workshop is greatly reduced.

Under the hard core process, the core rod cannot be bent, the length of the core rod is limited by the total length of a workshop, if more effective lengths are occupied by equipment, the length of a single rubber tube product is forced to be greatly shortened, and the comprehensive cost is increased and the production efficiency is reduced.

Disclosure of Invention

In order to compensate the above-mentioned not enough of prior art, the utility model provides a cold wind pallet for winding rubber tube production for the winding production link of rubber tube enhancement layer steel wire under the hard core technology, including glue film extrusion shaping back, the mode that the pallet that utilizes to carry the inner rubber layer carries out cold-stored in advance to the inner rubber layer replaces refrigerator or liquid nitrogen refrigerating system among the prior art.

In order to achieve the above purpose, the present invention adopts the following technical solution.

The utility model provides a cold wind stand platform for twining rubber tube production, includes the frame that the interior glue film direction of delivery arranged along the rubber tube, and the top surface of frame is equipped with along direction of delivery arranges in proper order and carries a plurality of interior glue backing rolls of interior glue film, wherein:

the top surface of the frame is provided with a heat-insulating cavity channel arranged along the conveying direction, and the inner rubber supporting rollers are all covered in the heat-insulating cavity channel; one side of the heat-insulating cavity is provided with an open opening along the conveying direction, a door curtain made of soft glass is hung along the upper edge of the open opening, and the lower edge of the door curtain is hung to the top surface of the rack to shield the open opening;

the rack is internally provided with a cold air duct arranged along the conveying direction, the top surface of the cold air duct is provided with a plurality of air ports distributed along the conveying direction, and the air ports are respectively communicated with the bottom of the heat preservation cavity.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) compared with the common low-temperature winding mode in the prior art, the normal-temperature winding mode avoids the generation of a large amount of condensed water, and ensures the quality of products.

(2) The scheme replaces the original refrigerator or liquid nitrogen freezing system, and the process characteristics of the scheme ensure that the winding machine can exert the speed potential to the utmost extent, which is cost saving.

(3) The refrigerating capacity required for maintaining the low temperature of the inner rubber layer in the winding process is much less than that of a refrigerator or liquid nitrogen, and the cost is greatly saved.

(4) The extra space is not occupied, and the extra space after the refrigerator or the liquid nitrogen system is replaced can be better utilized.

The present invention will be further described with reference to the drawings and the detailed description.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic view of the working principle of the present invention.

Detailed Description

As shown in fig. 1 to 3, an air cooling rack for winding rubber tube production comprises a rack 1 arranged along the conveying direction of an inner rubber layer of a rubber tube, wherein a plurality of inner rubber supporting rollers 2 arranged along the conveying direction in sequence for conveying the inner rubber layer are arranged on the top surface of the rack 1, and the air cooling rack comprises:

the top surface of the frame 1 is provided with a heat preservation cavity 3 arranged along the conveying direction, and the inner rubber supporting rollers 2 are all covered in the heat preservation cavity 3; one side of the heat preservation cavity channel 3 is provided with an open opening 31 along the conveying direction, a door curtain 32 made of soft glass is hung along the upper edge of the open opening 31, and the lower edge of the door curtain 32 is hung to the top surface of the rack 1 to shield the open opening 31;

the rack 1 is internally provided with a cold air duct 4 arranged along the conveying direction, the top surface of the cold air duct 4 is provided with a plurality of air ports 41 distributed along the conveying direction, and the air ports 41 are respectively communicated with the bottom of the heat preservation cavity channel 3.

According to the technical scheme, the cold air stand for rubber tube winding production is provided with the heat preservation cavity channel 3 on the frame 1 for conveying the inner rubber layer, and the air cooler connected with the outside through the cold air channel 4 is used for carrying out continuous air cooling on the inside of the heat preservation cavity channel 3, so that a normal-temperature cold storage environment of 5-10 ℃ is created in the heat preservation cavity channel 3. Obviously, the inner rubber layer is refrigerated in advance through the heat preservation cavity 3 in the conveying process, so that the temperature of the inner rubber layer is reduced to the range of the process requirement from outside to inside when the inner rubber layer is conveyed to a winding machine for steel wire winding. Meanwhile, the steel core rod in the inner rubber layer can still play a delayed low-temperature protection role for the inner rubber layer when steel wires are wound due to sufficient cooling. In the whole process, the temperature of the inner rubber layer is in the normal temperature range, the steel wire is not easy to form condensed water, the defects caused by rusting of the steel wire are fundamentally avoided, and the product quality is greatly improved.

According to the cold air rack for producing the winding rubber tube in the technical scheme, the inner rubber layer is fully cooled after being conveyed in the heat preservation cavity 3 for a period of time, so that good stiffness and hardness are obtained, and the condition of high-speed passing through the winding machine is achieved, so that the potential short board of the production line caused by the cooling link of the inner rubber layer in the prior art is broken, the full-speed running of the winding machine is matched, and the efficiency of the whole production line is improved by about 50% before improvement.

According to the technical scheme, the cold air channel 4 is introduced, so that the adopted low-power air cooler can meet the refrigeration requirement, the energy consumption is greatly lower than that of a refrigerator, and the comprehensive cost is also greatly lower than that of a liquid nitrogen system.

According to the technical scheme, the cold air stand for rubber tube winding production cannot occupy extra space due to the fact that the heat preservation cavity channel 3 is constructed by the stand 1, and the space occupied by a refrigerator or a liquid nitrogen system in the prior art is released, the cold air stand is converted into the effective length space of the stand and the core rod, and the cold air stand is beneficial to improvement of comprehensive production efficiency and cost control.

Furthermore, the top surface of the rack 1 is provided with a table top which is aligned with the lower edge of the door curtain 32 and horizontally extends into the opening 31 at the side opposite to the opening 31 of the heat-insulating cavity 3, and the table top is divided into an inner glue transfer parking platform 11 positioned outside the heat-insulating cavity 3 and an inner glue cooling platform 12 positioned in the heat-insulating cavity 3 by taking the door curtain 32 as a boundary; the side of the bottom surface of the heat preservation cavity 3 far away from the opening 31 is provided with a conveying platform 13 lower than the inner glue cooling platform 12, and the inner glue supporting roller 2 is arranged on the conveying platform 13.

The arrangement of the inner glue transferring and parking platform 11 is convenient for the hoisting, transferring and temporary storage of the inner glue layers and the core rods between production lines, and the arrangement of the inner glue cooling platform 12 allows a certain number of inner glue layers and core rods to stay in the heat preservation channel, so that the inner glue layers and the core rods are ensured to obtain sufficient cooling time. The opening 31 is used for pushing the inner rubber layer and the core rod into the heat preservation cavity 3, and the door curtain 32 can ensure that the opening 31 is automatically closed after normal pushing, so that the heat preservation and insulation effects are promoted. The inner wall of the heat preservation cavity 3 can be made into a heat preservation structure by adopting polyurethane or glass fiber heat preservation cotton, so that the heat preservation and heat insulation effects are further promoted.

Furthermore, the inner glue cooling platform 12 is provided with a downward inclined slideway 14 at one side edge opposite to the conveying platform 13, and the lower end of the slideway 14 is just in clearance fit with the upper edge of the inner glue supporting roller 2. The inner rubber layer slides down along the slide way 14 and just falls on the inner rubber supporting roller 2, and the inner rubber supporting roller 2 correspondingly forms a V-shaped groove along the wheel edge to realize the positioning of the inner rubber layer.

Furthermore, an inner glue release cylinder 5 positioned below the conveying platform 13 is arranged in the frame 1, and a piston rod of the inner glue release cylinder 5 vertically penetrates into the heat preservation cavity 3 upwards; an inner glue release baffle 51 penetrates through the slideway 14, the bottom of the inner glue release baffle 51 is connected with a piston rod of the inner glue release cylinder 5, and the inner glue release cylinder 5 drives the inner glue release baffle 51 to extend out of the surface of the slideway 14 or retract into the lower part of the surface of the slideway 14. The glue release baffle 51 extends out of the surface of the slideway 14, namely the inner glue layer is prohibited from accidentally falling into the inner glue supporting roller 2; and the glue release baffle 51 retracts below the surface of the slideway 14, allowing the inner glue layer to fall into the inner glue supporting roller 2; obviously, the inner glue release baffle 51 is driven by the inner glue release cylinder 5, so that controllable feeding of the inner glue layer can be realized.

In a preferred embodiment, the top surface of the frame 1 is provided with an inner glue pushing cylinder 6 at the beginning end along the conveying direction and a material pushing plate 61 driven by the inner glue pushing cylinder 6 to push out along the conveying direction, and the material stacking plate is arranged in alignment with the inner glue supporting roller 2 along the conveying direction. The inner glue pushing cylinder 6 is adopted to drive the material pushing plate 61, so that the inner glue layer can be pushed out along the conveying direction, the original means that the inner glue layer is pulled manually in the prior art is changed, and the equipment operation is more automatic.

For those skilled in the art, the protection scope of the present invention is not limited to the details of the above-described exemplary embodiments, and all the embodiments with variations within the scope and meaning equivalent to the elements of the present invention should be included in the present invention without departing from the spirit or essential characteristics of the present invention.

Claims

1. The utility model provides a cold wind stand platform for twining rubber tube production, includes the frame that the interior glue film direction of delivery arranged along the rubber tube, and the top surface of frame is equipped with along direction of delivery arranges in proper order in order a plurality of interior glue backing rolls of carrying interior glue film, its characterized in that:

2. The cold air stand for producing the wound rubber hose according to claim 1, wherein: the top surface of the rack is provided with a table top which is aligned with the lower edge of the door curtain and horizontally extends into the opening on the side opposite to the opening of the heat-insulation cavity, and the table top is divided into an inner glue transfer parking platform positioned outside the heat-insulation cavity and an inner glue cooling platform positioned in the heat-insulation cavity by taking the door curtain as a boundary; one side of the bottom surface of the heat preservation cavity far away from the opening is provided with a conveying platform lower than the inner glue cooling platform, and the inner glue supporting roller is arranged on the conveying platform.

3. The cold air stand for producing the wound rubber hose according to claim 2, wherein: the inner glue cooling platform is provided with a downward inclined slideway at one side edge opposite to the conveying platform, and the lower end of the slideway is just in clearance fit with the upper edge of the inner glue supporting roller.

4. The cold air stand for producing the wound rubber hose according to claim 3, wherein: an inner glue release cylinder positioned below the conveying platform is arranged in the rack, and a piston rod of the inner glue release cylinder vertically penetrates upwards into the heat preservation cavity; an inner glue release baffle penetrates through the slideway, the bottom of the inner glue release baffle is connected with a piston rod of an inner glue release cylinder, and the inner glue release cylinder drives the inner glue release baffle to extend out of the surface of the slideway or retract into the lower part of the surface of the slideway.

5. The cold air stand for the production of wound hoses according to claim 1, 2, 3 or 4, wherein: the top surface of the frame is provided with an inner glue pushing cylinder and a material pushing plate driven by the inner glue pushing cylinder to push out along the conveying direction at the starting end along the conveying direction, and the material stacking plate is aligned with the inner glue supporting roller along the conveying direction.