WO2017107166A1 - 一种电热切割刀的带杆刀片 - Google Patents

一种电热切割刀的带杆刀片 Download PDF

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Publication number
WO2017107166A1
WO2017107166A1 PCT/CN2015/098821 CN2015098821W WO2017107166A1 WO 2017107166 A1 WO2017107166 A1 WO 2017107166A1 CN 2015098821 W CN2015098821 W CN 2015098821W WO 2017107166 A1 WO2017107166 A1 WO 2017107166A1
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Prior art keywords
blade
fixing clip
cutting knife
rods
electric
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PCT/CN2015/098821
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English (en)
French (fr)
Inventor
张波
成家忠
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常州市肯迪电器制造有限公司
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Publication of WO2017107166A1 publication Critical patent/WO2017107166A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members

Definitions

  • the present invention relates to a cutting blade, and more particularly to a rod blade of an electric heat cutting blade.
  • Electric cutting knives are hand-held tools that use electrical energy to heat the cut.
  • One is to install electric heating wire inside the blade, and the heat is generated after power-on.
  • the advantage of this electric heating knife is that it is cheap, low in cost and simple in structure; the disadvantage is that the blade is thicker.
  • the preheating is slow, it can only be used to cut foam products; the other is the hand-held electric knife that uses the resistance of the blade to achieve heat through large current.
  • the main brands are Kendi electric knife, World Aviation electric knife, etc.
  • the preheating time of the knife is very short. As long as the blade can reach the red state in a few seconds, the efficiency is high and the shape is changeable.
  • Different power blades can be selected according to different use occasions, and the application range is wide, and can be used for cutting foam, sponge, Low melting point products such as plastic, chemical fiber cloth, non-woven fabric, filter cloth, plastic rope and rubber.
  • the electric knife that uses the blade resistance heat to cut is more flexible and can be used to cut different products with different blades.
  • a bladed electric knife blade as shown in FIG. 1 is often used, and the blade is generally composed of a blade body 1 and a knife bar 2, and the blade bar 2 is used to fix the blade body 1 and Conductive, the blade body 1 is used for heat-cutting products; in order to enhance the mounting stability of the blade and prevent the blade body 1 from shaking during use, it is usually necessary to add a fixing clip 3 to the knife bar 2 for making the entire blade more Firm.
  • the fixing clips 3 used in the current blade on the market are made of ferrous materials, such as iron plates, stainless steel (non-austenite), and an insulating tube is also arranged between the fixing clips 3 and the shank 2. To prevent the knife bar 2 from being short-circuited. However, when such a blade is used on an electric heat cutting blade, eddy current is formed on the fixed clip 3 due to electromagnetic induction, resulting in energy loss.
  • the object of the present invention is to overcome the above-mentioned deficiencies of the prior art of the electric cutting blade of the electric cutting blade, and to provide a rod blade of the electric heating cutting blade, which adopts the technical solution of the invention to manufacture the fixing clip with the rod blade using the non-ferromagnetic material.
  • the energy loss caused by the eddy current generated by the existing fixed clip is reduced, and the efficiency can be improved by about 30%, which is very significant for the portable electric heat cutting knife using the battery.
  • a rod blade of an electric heat cutting knife comprises a blade body, a knife bar and a fixing clip, wherein two ends of the blade body are respectively fixed on two knife bars, and the fixing clips are mounted on two Between the root knives, the fixed clip is made of non-ferrous Made of magnetic material.
  • the fixing clip is made of any one of copper, aluminum, non-magnetic austenitic stainless steel, high temperature resistant plastic and ceramic.
  • an insulating layer is further disposed between the fixing clip and the shank.
  • a rod blade of an electric heat cutting blade according to the present invention wherein the fixing clip is made of a non-ferromagnetic material, which avoids unnecessary eddy currents generated by the fixed clip and causes unnecessary energy loss, thereby improving the efficiency of the electric heat cutting blade.
  • the efficiency can be increased by about 30%, which is very significant for portable electric cutting knives using batteries;
  • a rod blade of an electric heat cutting blade according to the present invention wherein the fixing clip is made of any one of copper, aluminum, non-magnetic austenitic stainless steel, high temperature resistant plastic and ceramic, and the material is convenient to take. Low cost and easy to manufacture;
  • a rod blade of an electric heat cutting blade according to the present invention wherein when the fixing clip has electrical conductivity, an insulating layer is further disposed between the fixing clip and the shank to prevent a short circuit between the two shanks.
  • FIG. 1 is a schematic view showing the structure of a rod blade of an electric heat cutting blade according to the present invention.
  • Blade body 1. Blade body; 2. Tool holder; 3. Fixed clip.
  • FIG. 1 is a schematic structural view of a rod blade of an electric heat cutting knife according to the present invention, comprising a blade body 1, a knife bar 2 and a fixing clip 3, wherein two ends of the blade body 1 are respectively fixed on the two tool bars 2,
  • the fixing clip 3 is mounted between the two shanks 2; the blade is mainly used for cutting fabrics such as wallpaper, curtains and canvas. Since the current electric cutting knives are all powered by AC power frequency and high frequency power supply, the technician does not need to worry about whether the power supply is sufficient, and the heat generated by the eddy current effect of the fixed clip 3 is difficult to distinguish, causing the technician to ignore the electric heating cutter. Energy consumption issues.
  • the electric power cutting blade needs to be connected to a power cable at the tail, which is inconvenient to use, and can not be used in some outdoor places without power supply. Therefore, it is very necessary to develop a portable electric heat cutting knife powered by a battery, and reduce the energy. It is especially important for this type of charging type electric cutting knife.
  • the rod blade of the electric heat cutting knife of the embodiment comprises a blade body 1 , a knife bar 2 and a fixing clip 3 , and two ends of the blade body 1 are respectively fixed on the two tool bars 2 .
  • the blade body 1 is used for heating and cutting products
  • the cutter bar 2 It is used to fix the blade body 1 and is electrically conductive;
  • the fixing clip 3 is mounted between the two shanks 2 for reinforcing the entire blade.
  • the fixing clip 3 in this embodiment is made of a non-ferromagnetic material.
  • the fixing clip 3 may be made of any one of copper, aluminum, high temperature resistant plastic and ceramic. Austenitic stainless steel is non-magnetic, and is also a non-ferromagnetic material.
  • an insulating layer is further disposed between the fixing clip 3 and the shank 2, and the insulating layer can be made of an insulating material. Insulating tube.
  • test data are as follows:
  • the fixing clip 3 is made of a non-ferromagnetic material, which avoids unnecessary eddy currents generated by the fixing clip 3 and causes unnecessary energy loss, thereby improving the electric cutting blade. Efficiency and efficiency can be increased by about 30%, which is very important for portable electric cutting knives using batteries.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Abstract

一种电热切割刀的带杆刀片，包括刀片体（1）、刀杆（2）和固定夹片（3），刀片体（1）的两端分别固定于两根刀杆（2）上，固定夹片（3）安装于两根刀杆（2）之间，固定夹片（3）由非铁磁性材料制成。使用非铁磁性材料制作带杆刀片（1）的固定夹片（3），减小了现有固定夹片产生涡流而造成的能量损耗，效率可提高30%左右，对于使用蓄电池的便携式电热切割刀具有非常重大的意义。

Description

一种电热切割刀的带杆刀片 技术领域
本发明涉及一种切割刀刀片，更具体地说，涉及一种电热切割刀的带杆刀片。
背景技术
电热切割刀，顾名思义，就是利用电能发热来实现切割的手持刀具。现市场上主要有两种不同原理的电热刀，一种是在刀片里面装上电热丝，通电后发热，这种电热刀的优点是价格便宜，成本低，结构简单；缺点是刀片比较厚，预热慢，只能用来切泡沫类产品；另一种是利用刀片的电阻，通过大电流来实现发热的手持电热刀，主要品牌有肯迪电热刀、世航电热刀等，这种电热刀预热时间很短，只要几秒种刀片就能够达到红的状态，效率高，形状多变，可以根据不同的使用场合选择不同的功率刀片，应用范围广，可以用来切割泡沫、海绵、塑料、化纤布、无纺布、滤布、塑料绳和橡胶等等低熔点制品。
对于后者利用刀片电阻发热来进行切割的电热刀，其使用更加灵活，可以配合不同的刀片切割不同的制品。在切割墙纸、窗帘和帆布等面料制品时，常采用如图1所示的带杆电热刀刀片，该刀片一般由刀片体1和刀杆2等组成，刀杆2用于固定刀片体1并导电，刀片体1用于发热切割制品；为了加强这种刀片的安装稳定性，防止刀片体1在使用中晃动，通常还需要在刀杆2上增设固定夹片3，用于使整个刀片更加牢固。目前市场上的带杆刀片所使用的固定夹片3都是采用铁质材料制作的，如铁板、不锈钢(非奥氏体)，固定夹片3与刀杆2之间还设置有绝缘管，防止刀杆2短路。但是这种刀片在电热切割刀上使用时，由于电磁感应的原因，会在该固定夹片3上形成涡流，造成能量损耗。
发明内容
1.发明要解决的技术问题
本发明的目的在于克服现有电热切割刀的带杆刀片的上述不足，提供一种电热切割刀的带杆刀片，采用本发明的技术方案，使用非铁磁性材料制作带杆刀片的固定夹片，减小了现有固定夹片产生涡流而造成的能量损耗，效率可提高30％左右，对于使用蓄电池的便携式电热切割刀具有非常重大的意义。
2.技术方案
为达到上述目的，本发明提供的技术方案为：
本发明的一种电热切割刀的带杆刀片，包括刀片体、刀杆和固定夹片，所述的刀片体的两端分别固定于两根刀杆上，所述的固定夹片安装于两根刀杆之间，所述的固定夹片由非铁 磁性材料制成。
更进一步地，所述的固定夹片由铜、铝、不导磁奥氏体不锈钢、耐高温塑料和陶瓷中的任意一种材料制成。
更进一步地，所述的固定夹片具有导电性时，在固定夹片与刀杆之间还设有绝缘层。
3.有益效果
采用本发明提供的技术方案，与已有的公知技术相比，具有如下有益效果：
(1)本发明的一种电热切割刀的带杆刀片，其固定夹片由非铁磁性材料制成，避免了固定夹片产生涡流而造成不必要的能量损耗，提高了电热切割刀的效率，效率可提高30％左右，对于使用蓄电池的便携式电热切割刀具有非常重大的意义；
(2)本发明的一种电热切割刀的带杆刀片，其固定夹片由铜、铝、不导磁奥氏体不锈钢、耐高温塑料和陶瓷中的任意一种材料制成，取材方便，价格低廉，并且易于加工制造；
(3)本发明的一种电热切割刀的带杆刀片，其固定夹片具有导电性时，在固定夹片与刀杆之间还设有绝缘层，防止两根刀杆之间发生短路。
附图说明
图1为本发明的一种电热切割刀的带杆刀片的结构示意图。
示意图中的标号说明：
1、刀片体；2、刀杆；3、固定夹片。
具体实施方式
为进一步了解本发明的内容，结合附图对本发明作详细描述。
图1为本发明的一种电热切割刀的带杆刀片的结构示意图，其包括刀片体1、刀杆2和固定夹片3，刀片体1的两端分别固定于两根刀杆2上，固定夹片3安装于两根刀杆2之间；该刀片主要用于切割墙纸、窗帘和帆布等面料制品。由于目前的电热切割刀都是使用交流工频及高频电源供电，因此技术人员无需担心电源是否充足，而且固定夹片3的涡流效应产生的热量又难以分辨，导致技术人员忽视了电热切割刀的能耗问题。这种电热切割刀的尾部需要连接一根电源线，使用便捷性较差，而且在一些没有电源的户外场合无法使用，因此开发使用蓄电池供电的便携式电热切割刀显得非常有必要，而减小能耗对于这种充电型的电热切割刀尤为重要。
下面结合实施例对本发明作进一步的描述。
实施例
结合图1所示，本实施例的一种电热切割刀的带杆刀片，包括刀片体1、刀杆2和固定夹片3，刀片体1的两端分别固定于两根刀杆2上，刀片体1用于发热并切割制品，刀杆2 用于固定刀片体1并导电；固定夹片3安装于两根刀杆2之间，用于加固整个刀片。与现有技术不同的是，本实施例中的固定夹片3由非铁磁性材料制成，例如，固定夹片3可由铜、铝、耐高温塑料和陶瓷中的任意一种材料制成，奥氏体不锈钢不导磁，也是一种非铁磁性材料，也可用于制作固定夹片3，这些材料取材方便，价格低廉，并且易于加工制造。并且，为了防止两根刀杆2之间发生短路，当固定夹片3具有导电性时，在固定夹片3与刀杆2之间还设有绝缘层，该绝缘层可以为绝缘材质制成的绝缘管。
为了更好地说明问题，分别采用铜质、铝质和铁质的固定夹片3进行试验，试验数据如下：
刀片型号 夹片材质 通电时间(s) 刀片温度(℃) 输入电压(V)
R刀片No.10.2 铜 10 400 16.8
R刀片No.10.2 铝 10 400 16.8
R刀片No.10.2 铁 16 400 16.8
由以上试验数据可以看出：在同样的输入电压下，使用铜质和铝质固定夹片3的刀片，加热到400℃时所需的时间要比使用铁质固定夹片3的刀片少6秒，可见铁质固定夹片3产生涡流而造成的能量损耗不容忽视。
而本实施例的一种电热切割刀的带杆刀片，其固定夹片3由非铁磁性材料制成，避免了固定夹片3产生涡流而造成不必要的能量损耗，提高了电热切割刀的效率，效率可提高30％左右，对于使用蓄电池的便携式电热切割刀具有非常重大的意义。
以上示意性地对本发明及其实施方式进行了描述，该描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此。所以，如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性地设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。

Claims (3)

  1. 一种电热切割刀的带杆刀片，包括刀片体(1)、刀杆(2)和固定夹片(3)，所述的刀片体(1)的两端分别固定于两根刀杆(2)上，所述的固定夹片(3)安装于两根刀杆(2)之间，其特征在于：所述的固定夹片(3)由非铁磁性材料制成。
  2. 根据权利要求1所述的一种电热切割刀的带杆刀片，其特征在于：所述的固定夹片(3)由铜、铝、不导磁奥氏体不锈钢、耐高温塑料和陶瓷中的任意一种材料制成。
  3. 根据权利要求1或2所述的一种电热切割刀的带杆刀片，其特征在于：所述的固定夹片(3)具有导电性时，在固定夹片(3)与刀杆(2)之间还设有绝缘层。
PCT/CN2015/098821 2015-12-21 2015-12-25 一种电热切割刀的带杆刀片 WO2017107166A1 (zh)

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