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Flexible control cable for industrial robot

A flexible and soft polyvinyl chloride technology, used in insulated cables, bendable cables, cables, etc., can solve the problems of complex mechanical structure, poor heat resistance, and easy rupture of the cable surface.

Inactive Publication Date: 2021-08-27
合肥必更赢科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its soft texture, high strength, and good airtightness and impermeability, it has excellent prospects for control cables for industrial robots. Since the mixing of plasticizers and polyvinyl chloride resins is a purely physical process, During the working of industrial robots, the plasticizer has a tendency to migrate to the surface of polyvinyl chloride resin to varying degrees, the flexibility of the cable is reduced, and the surface of the cable is prone to cracks or even breakage.
[0005] CN 109637723 A discloses a cable for industrial robots. By improving the internal structure of the cable, the cable has stronger anti-twist and tensile properties. At the same time, the cable can be quickly replaced after being damaged by using a special branching structure. The damaged wire core can be reused after the whole cable is repaired; not only the mechanical structure is complex, but also the surface of the cable is still prone to cracks when the joint manipulator moves back and forth for a long time
[0006] CN 108461184 A discloses a composite ultra-flexible robot cable, the inner sheath and the outer sheath both adopt TPU thermoplastic elastomer layer, its heat resistance is poor, and its physical properties decrease greatly with the increase of temperature, and its durability is poor

Method used

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  • Flexible control cable for industrial robot
  • Flexible control cable for industrial robot
  • Flexible control cable for industrial robot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A flexible heat-resistant soft polyvinyl chloride plastic, its raw materials include: 100kg polyvinyl chloride, 5kg hyperbranched plasticizing carrier, 4kg pentaerythritol ester, 30kg tetrahydrofuran, 1kg calcium zinc stabilizer;

[0043] The hyperbranched plasticized carrier is prepared by the following process. Under the heated state of the reactor, the reactor is repeatedly evacuated and nitrogen is blown to remove the air and water in the reactor. Add 30kg of dichloromethane and mix evenly, adjust the temperature to 40°C, add 5kg of 3-ethyl-3-hydroxymethylbutylene oxide into the syringe, add it dropwise to the reactor under stirring, control the stirring speed Over 50r / min, after the dropwise addition is complete, keep stirring for 1 hour, use ethanol to terminate the reaction, and spin the solution to obtain a hyperbranched plasticized carrier.

[0044] Among them, the hydroxyl-terminated rigid initial unit is prepared by the following process. The reactor is repea...

Embodiment 2

[0050] A flexible heat-resistant soft polyvinyl chloride plastic, its raw materials include: 100kg polyvinyl chloride, 15kg hyperbranched plasticizing carrier, 10kg pentaerythritol ester, 50kg tetrahydrofuran, 2kg calcium zinc stabilizer;

[0051] The hyperbranched plasticized carrier is prepared by the following process. Under the heated state of the reactor, the reactor is repeatedly evacuated and nitrogen gas is used to remove the air and water in the reactor. Add 50kg of dichloromethane and mix evenly, adjust the temperature to 50°C, add 15kg of 3-ethyl-3-hydroxymethylbutylene oxide into the syringe, add it dropwise to the reactor under stirring, control the stirring speed Over 50r / min, after the dropwise addition is complete, keep stirring for 2 hours, use ethanol to terminate the reaction, and spin the solution to obtain a hyperbranched plasticized carrier.

[0052] Among them, the hydroxyl-terminated rigid initial unit is prepared by the following process. The reactor i...

Embodiment 3

[0058] A flexible heat-resistant soft polyvinyl chloride plastic, its raw materials include: 100kg polyvinyl chloride, 8kg hyperbranched plasticizing carrier, 5kg pentaerythritol ester, 35kg tetrahydrofuran, 1.2kg calcium zinc stabilizer;

[0059] The hyperbranched plasticized carrier is prepared by the following process. Under the heated state of the reactor, the reactor is repeatedly evacuated and nitrogen is blown to remove the air and water in the reactor. Add 35kg of dichloromethane and mix evenly, adjust the temperature to 42°C, add 8kg of 3-ethyl-3-hydroxymethylbutylene oxide into the syringe, add it dropwise to the reactor under stirring, control the stirring speed Over 50r / min, after the dropwise addition is complete, keep stirring for 1.2h, use ethanol to terminate the reaction, and spin the solution to obtain a hyperbranched plasticized carrier.

[0060] Among them, the hydroxyl-terminated rigid initial unit is prepared by the following process. The reactor is repea...

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PUM

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Abstract

The invention discloses a flexible control cable for an industrial robot. The flexible control cable comprises a wire core, and an insulating layer, a shielding layer and an outer protective layer which are sequentially coated outside the wire core, the wire core comprises a plurality of wires, positioning pieces arranged among the plurality of wires, and filling fluid filled between the plurality of wires and the insulating layer; and the outer protective layer is made of flexible heat-resistant soft polyvinyl chloride plastics. When the cable is bent in the using process, the tensile force or torsional force borne by the cable can be converted into movement of the cable, when the cable is strongly impacted, the toughness of the cable core is enhanced, the cable flexibility can be maintained in a high-temperature environment for a long time in cooperation with the effect of the surface outer protection layer, and damage to the surface of the cable caused by stress concentration is effectively reduced; and the conditions of cracks and even breakage are avoided.

Description

technical field [0001] The invention relates to the technical field of control cables for industrial robots, in particular to a flexible control cable for industrial robots. Background technique [0002] Industrial robots are multi-joint manipulators or multi-degree-of-freedom machine devices widely used in the industrial field. They have certain automation and can realize various industrial processing and manufacturing functions by relying on their own power sources and control capabilities. Industrial robots are widely used in various industrial fields such as electronics, logistics, and chemical industry. The essence of an industrial robot is a multi-joint manipulator or a multi-degree-of-freedom machine device. Various control cables are connected between each joint manipulator of an industrial robot. [0003] During the operation of an industrial robot, the control cable itself will be affected by torsional force and tensile force due to its reciprocating bending movem...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L87/00H01B7/04H01B7/18H01B7/28H01B7/285H01B7/29C08G83/00C08L71/02C08L33/12
CPCC08G83/005C08L27/06C08L71/02C08L2201/08C08L2203/202H01B7/041H01B7/1875H01B7/28H01B7/285H01B7/292C08L87/00C08L33/12
Inventor 严春兰
Owner 合肥必更赢科技有限公司
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