Method for adjusting the spraying range of a hot melt adhesive with a flat aluminum sheath

Abstract

The present application relates to a kind of flat aluminum sheath hot melt glue spraying range adjustment method, the range of spraying is adjusted conveniently, it is not necessary to disassemble nozzle module frequently, avoid the damage of nozzle caused by disassembly frequently and reduce the service life of nozzle, prevent the scalding accident caused by disassembly nozzle in high temperature state;Precise control the range of spraying, can realize stepless adjustable of spraying range, precisely control the range of spraying hot melt glue, avoid the waste of hot melt glue and environmental pollution caused by improper adjustment of spraying range, part of hot melt glue is sprayed in air;Precise control the thickness of spraying, the glue output of hot melt glue is accurately controlled by the rotating speed of hot melt glue pump, to achieve the purpose of controlling the thickness of spraying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable, in particular to a method for adjusting the spraying range of hot melt adhesive for flat aluminum sheath. BACKGROUND

[0002] Since the flat aluminum sheath can effectively solve the problem of poor electrical contact between the wrinkled aluminum sheath and the core, the flat aluminum sheath is gradually used in high-voltage cable aluminum sheath, and the aluminum sheath and the outer sheath need to be tightly combined together, and the hot melt adhesive is used for bonding therebetween. At present, the spraying method is widely used for coating the hot melt adhesive on the flat aluminum sheath, and a certain number of nozzle modules are arranged on the nozzle, and the number of the nozzle modules is adjusted according to the size of the outer diameter of the cable aluminum sheath, so that the sprayed hot melt adhesive can cover the aluminum sheath.

[0003] Problems of the prior art:

[0004] 1. The nozzle modules need to be disassembled and assembled for different cable aluminum sheath outer diameters, and the operation is complicated;

[0005] 2. The nozzle module itself has a certain width, the spraying range cannot be steplessly adjusted, and part of the hot melt adhesive is sprayed in the air, causing waste of the hot melt adhesive and environmental pollution. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a method for adjusting the spraying range of hot melt adhesive for flat aluminum sheath, to change the adjustment method of the spraying range of the nozzle, to not need to adjust the number of nozzles, to be simple and convenient to realize, and to steplessly adjust the spraying range, thereby avoiding waste of the hot melt adhesive and environmental pollution.

[0007] The technical scheme adopted by the present application to solve the technical problem is that a method for adjusting the spraying range of hot melt adhesive for flat aluminum sheath is provided, and the method specifically comprises the following steps:

[0008] Step one: one nozzle is installed in each of the upper, lower, left and right directions of the aluminum pipe, each nozzle is equipped with an independent stepping motor, the angle of the nozzle is controlled through the stepping motor, the width of the nozzle is designed according to the maximum outer diameter of the aluminum sheath of the produced cable, assuming that the maximum radius of the aluminum sheath of the cable is R, the width of the nozzle in each direction is L, L=1.414R, and the four nozzles can just spray the entire circumferential range of the aluminum sheath;

[0009] Step two: when the outer diameter of the cable decreases, the adjustment of the spraying width can be realized by adjusting the angle of the nozzle, and the actual spraying range of a single nozzle after adjusting the angle can be calculated according to formula one, that is: L 实 =L*cosθ, θ∈[0, π / 2), L 实∈(0, L]; in formula one: L is the width of the nozzle; θ is the angle of the nozzle adjustment; the angle θ can be calculated according to the size of the cable outer diameter d, according to formula two, that is: θ = arccos [π * d / (4 * L)], θ ∈ [0, π / 2), in formula two: θ is the angle of the nozzle adjustment; d is the outer diameter of the cable aluminum sheath; L is the width of the nozzle;

[0010] Step three: according to the outer diameter of the cable aluminum sheath, combined with formula one and formula two, the angle of the nozzle adjustment can be calculated, the calculation result is input into the control program, the control program is converted into an electric pulse signal and sent to the driver of the stepping motor, the driver continuously receives the pulse signal, drives the stepping motor to rotate in the set direction by a certain angle, until the nozzle is rotated to the required angle, so as to achieve the purpose of accurately controlling the spraying range, so that the hot melt adhesive sprayed in four directions of the aluminum sheath completely covers the aluminum sheath, and there is no overlapping part of the hot melt adhesive sprayed in each direction, and there is no excess hot melt adhesive sprayed in the air.

[0011] Wherein, each nozzle is equipped with a hot melt adhesive pump, and the hot melt adhesive is delivered to the nozzle through the hot melt adhesive pump, and the thickness control of the hot melt adhesive can be realized by adjusting the rotating speed of the hot melt adhesive pump.

[0012] As a supplement to the technical solution of the application, a control display is further included, which is connected with the hot melt adhesive pump and the driver of the stepping motor respectively, and the control and parameter display are realized through the control display.

[0013] Advantages: the application relates to a method for adjusting the hot melt adhesive spraying range of a flat aluminum sheath, which has the following advantages:

[0014] 1. The range of spraying is convenient to adjust, the nozzle module does not need to be frequently disassembled, damage to the nozzle caused by frequent disassembly is avoided, the service life of the nozzle is prolonged, and scalding accidents caused by disassembling the nozzle in a high temperature state are prevented;

[0015] 2. The range of spraying is accurately controlled, the stepless adjustment of the spraying range can be realized, the range of the hot melt adhesive spraying is accurately controlled, the waste of the hot melt adhesive and the pollution of the environment caused by the improper adjustment of the spraying range and the spraying of part of the hot melt adhesive in the air are avoided;

[0016] 3. The thickness of the spraying is accurately controlled, the amount of the hot melt adhesive is accurately controlled through the rotating speed of the hot melt adhesive pump, and the purpose of controlling the spraying thickness is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the nozzle distribution of the application;

[0018] Figure 2 is a schematic diagram of adjusting the angle of the nozzle of the application. DETAILED DESCRIPTION

[0019] The application will be further described below in connection with specific embodiments. It should be understood that these embodiments are only used to illustrate the application and not used to limit the scope of the application. Furthermore, it should be understood that after reading the content of the application, those skilled in the art can make various modifications or changes to the application, and these equivalent forms also fall within the scope defined by the appended claims.

[0020] Embodiments of the application relate to a method for adjusting the spraying range of hot melt glue for flat aluminum sheath, as shown in Figures 1-2 , specifically comprising the following steps:

[0021] Step one: install one spray head in each of the four directions of up, down, left and right on the aluminum pipe, and each spray head is equipped with an independent stepping motor, the angle of the spray head is controlled by the stepping motor, the width of the spray head is designed according to the maximum outer diameter of the aluminum sheath of the production cable, assuming that the maximum radius of the aluminum sheath of the cable is R, the width of the spray head in each direction is L, L = 1.414R, and the four spray heads can just spray the entire circumference of the aluminum sheath (i.e. the maximum spraying range), as shown in Figure 1 .

[0022] Step two: when the outer diameter of the cable decreases, the spraying width can be adjusted by adjusting the angle of the spray head, as shown in Figure 2 , the actual spraying range of a single spray head after adjusting the angle can be calculated according to formula one, i.e. L 实 = L*cosθ, θ ∈ [0, π / 2), L 实 ∈ (0, L]; in formula one: L is the width of the spray head; θ is the angle of the spray head adjustment; the angle θ can be calculated according to the size of the outer diameter d of the cable according to formula two, i.e. θ = arccos [π*d / (4*L)], θ ∈ [0, π / 2), in formula two: θ is the angle of the spray head adjustment; d is the outer diameter of the aluminum sheath of the cable; L is the width of the spray head;

[0023] Step three: according to the outer diameter of the aluminum sheath of the cable, the angle that the spray head needs to be adjusted can be calculated in combination with formula one and formula two, the calculation result is input into the control program, the control program converts it into an electric pulse signal and sends it to the driver of the stepping motor, the driver continuously receives the pulse signal, drives the stepping motor to rotate in the set direction by a certain angle, until the spray head is rotated to the required angle, so as to achieve the purpose of accurately controlling the spraying range, so that the hot melt glue sprayed in the four directions of the aluminum sheath can completely cover the aluminum sheath, and there is no overlapping part of the hot melt glue sprayed in each direction, and there is no excess hot melt glue sprayed in the air.

[0024] Step four: each spray head is equipped with a hot melt glue pump, the hot melt glue is delivered to the spray head through the hot melt glue pump, and the thickness control of the hot melt glue sprayed can be realized by adjusting the rotating speed of the hot melt glue pump.

[0025] The control display is connected with the driver of the hot melt adhesive pump and the stepper motor respectively, and the control and parameter display are realized through the control display.

[0026] The control display, the hot melt adhesive pump and the stepper motor are connected with the external power supply through power lines and plugs to realize the power supply of the components.

[0027] The range of spraying can be conveniently adjusted, the spray head module does not need to be frequently disassembled, the service life of the spray head is reduced due to damage caused by frequent disassembly, and scalding accidents caused by disassembly of the spray head in a high-temperature state are prevented; the range of spraying can be precisely controlled, the range of spraying can be steplessly adjusted, the range of spraying hot melt adhesive can be precisely controlled, and waste of hot melt adhesive and environmental pollution caused by improper adjustment of the range of spraying and spraying of part of the hot melt adhesive in the air are avoided; the thickness of spraying can be precisely controlled, the amount of hot melt adhesive is precisely controlled through the rotating speed of the hot melt adhesive pump, and the purpose of controlling the thickness of spraying is achieved.

[0028] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the devices or elements indicated must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0029] In order to facilitate the description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0030] In addition, it should be noted that the use of the terms "first", "second" and the like is merely intended to distinguish the corresponding components, and the above terms have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0031] The above describes in detail the method for adjusting the hot melt adhesive spraying range of the flat aluminum sheath provided by the present application, and the principles and implementation manners of the present application are described by using specific examples, and the above example description is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and the above is described, and the content of the specification should not be understood as a limitation on the present application.

Claims

1. A method for adjusting the hot melt adhesive spray range of a flat aluminum sheathed applicator, characterized by: Specifically comprising the following steps: Step one: install a spray head in each of the four directions of the aluminum pipe, that is, up, down, left and right. Each spray head is equipped with an independent stepping motor. The angle of the spray head is controlled by the stepping motor. The width of the spray head is designed according to the maximum outer diameter of the aluminum sheath of the produced cable. Assuming that the maximum radius of the aluminum sheath of the cable is R, the width of the spray head in each direction is L, L = 1.414R. The four spray heads can spray the entire circumference of the aluminum sheath. Step two: when the cable outer diameter decreases, the adjustment of the spraying width can be achieved by adjusting the angle of the spray head, and the actual range of a single spray head after adjusting the angle can be calculated according to formula one, that is: L 实 =L*cosθ, θ∈[0, π / 2), L 实 ∈(0, L]; in formula one: L is the width of the spray head; θ is the angle of the spray head adjustment; the angle θ can be calculated according to the size of the cable outer diameter d according to formula two, that is: θ=arccos[π*d / (4*L)], θ∈[0, π / 2), in formula two: θ is the angle of the spray head adjustment; d is the outer diameter of the cable aluminum sheath; L is the width of the spray head; Step three: according to the outer diameter of the cable aluminum sheath, combined with formula one and formula two, the angle that the spray head needs to adjust can be calculated. The calculation result is input into the control program. The control program converts it into an electric pulse signal and sends it to the driver of the stepping motor. The driver constantly receives the pulse signal and drives the stepping motor to rotate in the set direction by a certain angle until the spray head is rotated to the required angle, thereby achieving the purpose of accurately controlling the spraying range. The hot melt adhesive sprayed in the four directions of the aluminum sheath completely covers the aluminum sheath, and there is no overlapping part of the hot melt adhesive sprayed in each direction, nor is there any excess hot melt adhesive sprayed in the air.

2. The method of claim 1, wherein: Wherein, Each spray head is equipped with a hot melt adhesive pump. The hot melt adhesive pump delivers hot melt adhesive to the spray head. The thickness control of the sprayed hot melt adhesive can be achieved by adjusting the speed of the hot melt adhesive pump.

3. The method of claim 2, wherein: It also includes a control display. The control display is connected to the hot melt adhesive pump and the driver of the stepping motor. The control display is used for control and parameter display.

Images