Uniform-temperature hot cutter composed of multiple sets of heating rods

The combined design of multiple sets of heating rods and temperature controllers solves the problem of temperature unevenness caused by component aging in traditional uniform temperature hot cutters, achieves uniform heating of the cutters and precise temperature control, improves processing accuracy and reduces maintenance costs.

CN223383533UActive Publication Date: 2025-09-26SUZHOU REHEATEK ELECTRICAL TECH CO LTD
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Patent Information

Application Number
CN202422772553.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-09-26
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The heating elements of traditional uniform temperature hot cutters age after long-term use, resulting in power decay and deviation in the power distribution ratio, which affects the temperature uniformity of the hot cutter and causes uneven temperature gradients, which may cause problems such as tool deformation, thermal stress concentration, and surface cracking.

Method used

The heat cutter is composed of multiple groups of heating rods, each of which is controlled by an independent temperature controller. The precise temperature adjustment of the needle spring thermocouple and the temperature controller is combined to ensure the uniformity of the heat treatment of the tool, avoid the use of power compensation components, reduce costs and extend service life.

Benefits of technology

The uniformity of tool heating and the accuracy of temperature control are achieved, which reduces thermal stress concentration, prolongs the tool life, improves machining accuracy and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a uniform-temperature hot cutter composed of multiple sets of heating rods, and relates to the technical field of uniform-temperature hot cutters, the uniform-temperature hot cutter composed of the multiple sets of heating rods comprises a cutter, and auxiliary heating rod mounting holes are formed in the two ends of the cutter; wherein one end is provided with a main heating rod mounting hole; heating rod components are arranged in the main heating rod mounting holes and the auxiliary heating rod mounting holes; according to the utility model, the cutter groove is designed on the cutter body so as to fix the cutter conveniently, the slope with a certain angle is designed on the top of the cutter body so as to facilitate the installation of the thermocouple, and the thermocouple installation hole is arranged on the top of the cutter body so as to facilitate the installation; the first temperature controller, the second temperature controller and the third temperature controller adjust temperature equalization according to temperature measuring points at the bottom, the distance between the designed positions of the temperature measuring points and a tool edge is small, the temperature controllers can conveniently schedule the temperature more accurately, an efficient tool heating system is formed, the heating uniformity of a tool is improved, and the probability that a tool material is damaged due to thermal expansion is reduced.
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Description

Technical Field

[0001] The utility model specifically relates to the technical field of uniform temperature hot cutters, in particular to a uniform temperature hot cutter composed of multiple groups of heating rods. Background Art

[0002] Traditional uniform-temperature thermal cutters use electricity to heat the cutting blade, converting it into heat, allowing the blade to reach a high temperature, enabling it to cut the material. These blades can reach temperatures of 400°C in seconds, enabling rapid cutting speeds, or maintain excellent temperature uniformity for quick and uniform sealing. The internal structure involves placing an electric heating rod or thermal wire within the cutter's internal through-holes. These heating rods or thermal wires must provide uniform heating, and these heating elements are typically designed as power-compensating elements. However, a drawback of these compensating elements is that, over time, power degradation due to component aging can cause a deviation in the power distribution ratio for power compensation, severely impacting the thermal cutter's temperature uniformity. Uneven heating can also create significant temperature gradients on the tool surface, leading to deformation and affecting the tool's material structure. Furthermore, uneven heating can lead to uneven thermal stress concentration on the tool surface, causing surface cracking and fatigue cracking, requiring complete replacement of the heating element for repair.

[0003] This utility model features a uniformly heated cutter consisting of multiple sets of heating rods. Multiple temperature control systems are used to independently regulate each of the heating rods, ensuring uniform heating without requiring power compensation for the electric heating rods. Standard electric heating rods can be used for regulation, saving costs. The temperature control system creates an efficient tool heating system, improving tool heating uniformity and avoiding significant temperature gradients. This minimizes thermal stress while maintaining sufficient tool toughness. Furthermore, the temperature measurement hole is designed to be close to the blade edge, ensuring more accurate temperature measurement. Utility Model Content

[0004] The purpose of the utility model is to provide a uniform temperature hot cutter composed of multiple groups of heating rods, which is installed and connected to the cutter device through an electric heating rod component and a thermocouple device, so that the cutter is heated evenly; in order to solve the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A uniform temperature hot cutter composed of multiple groups of heating rods, including

[0007] A cutter, both ends of which are provided with auxiliary heating rod mounting holes; one end of which is provided with a main heating rod mounting hole; and heating rod components are provided in both the main heating rod mounting hole and the auxiliary heating rod mounting hole;

[0008] There are multiple heating rod components, and the multiple heating rod components are electrically connected to the first thermostat, the second thermostat, and the third thermostat through wires respectively;

[0009] The top of the cutter has a horizontal surface and an inclined surface, wherein the inclined surface is provided with a plurality of thermocouple mounting holes for facilitating the installation of thermocouples; the plurality of thermocouple mounting holes are arranged at equal intervals along the length direction of the cutter.

[0010] As a further technical solution of the present invention, the cutter includes a cutter body, and cutter grooves are formed on both sides of the cutter body.

[0011] As a further technical solution of the present invention, the heating rod component includes a heating rod, one end of which is integrally provided with a right-angle adapter, and the top of the right-angle adapter is provided with a quick connector; the heating rod component includes a main heating rod and two auxiliary heating rods, the main heating rod is installed at the center position of the main heating rod mounting hole, and the two auxiliary heating rods are symmetrically installed at both ends of the auxiliary heating rod mounting hole to assist in heating the cold end of the main heating rod.

[0012] As a further technical solution of the present invention, the quick connector is composed of a male head and a female head; the male head is connected to the right-angle adapter; and the female head is externally connected to a wire.

[0013] As a further technical solution of the present invention, a temperature measuring point is provided at the bottom inside the inner side of each thermocouple mounting hole; the thermocouple includes a needle-type temperature measuring probe, which is arranged in the thermocouple mounting hole and contacts the temperature measuring point; the needle-type temperature measuring probe is connected to a metal shielding wire, and the other end of the metal shielding wire is connected to a Y-type crimping terminal.

[0014] As a further technical solution of the present invention, one end of the needle-type temperature measuring probe is provided with a nut threadedly connected to the thermocouple mounting hole; the needle-type temperature measuring probe is also sleeved with a spring

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model is designed with a knife groove on the cutter body for easy fixing of the cutter, and a slope at a certain angle is designed on the top of the cutter body for easy installation of the thermocouple, and a thermocouple installation hole is opened on the top of the cutter body for easy installation; the first, second and third thermostats adjust the average temperature according to the temperature measuring point at the bottom, and the position of the temperature measuring point is designed to be close to the blade, which is conducive to more accurate temperature scheduling by the thermostat, forming an efficient tool heating system, improving the uniformity of tool heating, reducing the probability of tool material being damaged by thermal expansion, and thus affecting the processing accuracy; the utility model uses a replaceable electric heating rod in the cutter body, does not require a power compensation type, and only needs to use an ordinary electric heating rod, which saves costs and at the same time Multiple groups of thermostats independently control multiple groups of heating rods, preventing errors or deviations in power distribution caused by long-term aging of the product, resulting in uneven temperature distribution and increasing the service life; the wires of the electric heating rods are electrically connected using male and female heads, which can be quickly plugged in and removed, making replacement or maintenance convenient; in this utility model, the thermocouple is a needle spring thermocouple, the bottom of which is inserted into the temperature measuring point through a needle temperature probe, and the top is connected to thermostat one, thermostat two and thermostat three through a Y-type crimping terminal. The needle spring thermocouple is also equipped with a spring. After being fixed, the elastic force of the spring helps the needle temperature probe to be pressed tightly against the temperature measuring point, so that the needle temperature probe is in close contact with the temperature measuring point, thereby improving the accuracy of temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 This utility model Figure 1 Top view of .

[0019] Figure 3 This utility model Figure 1 Front view of.

[0020] Figure 4 It is a schematic diagram of the split structure of the cutter in the utility model.

[0021] Figure 5 It is a schematic diagram of the split structure of the cutter in the utility model.

[0022] Figure 6 It is a schematic diagram of the split structure of the cutter in the utility model.

[0023] Figure 7 In this utility model Figure 6 Installation diagram.

[0024] In the figure: 1-cutter, 2-heating rod component, 3-thermocouple;

[0025] 11-cutter body, 12-cutter slot, 13-main heating rod mounting hole, 14-auxiliary heating rod mounting hole, 15-thermocouple mounting hole, 16-temperature measuring point;

[0026] 21-heating rod, 22-right angle adapter, 23-male connector, 24-female connector, 25-wire, 26-thermostat 1, 27-thermostat 2, 28-thermostat 3;

[0027] 31-Y-type crimping terminal, 32-metal shielding wire, 33-nut, 34-spring, 35-needle temperature probe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-7 In an embodiment of the present invention, a uniform temperature heat cutter using multiple sets of heating rods includes a cutter 1, both ends of the cutter 1 are provided with auxiliary heating rod mounting holes 14; one end of the cutter 1 is provided with a main heating rod mounting hole 13; and heating rod components 2 are provided in both the main heating rod mounting hole 13 and the auxiliary heating rod mounting hole 14;

[0030] There are multiple heating rod components 2, and the multiple heating rod components 2 are electrically connected to thermostat 1 26, thermostat 2 27 and thermostat 3 28 through wires 25; the heating rod component 2 includes a main heating rod and two auxiliary heating rods; the main heating rod serves as the main heating element of the cutter 1 to heat the cutter 1, and the auxiliary electric heating rods assist in heating the cold end of the main heating rod through the regulation of the thermostat, thereby improving the uniformity of the heating effect of the cutter 1.

[0031] The thermocouple 3 is a needle spring thermocouple, the bottom of which is inserted into the temperature measuring point 16 through a needle temperature probe 35, and the top is connected to the thermostat 1 26, the thermostat 2 27 and the thermostat 3 28 through the Y-type crimping terminal 31;

[0032] The top of the cutter 1 has a horizontal surface and an inclined surface, wherein the inclined surface is provided with a plurality of thermocouple mounting holes 15 for facilitating the installation of the thermocouple 3; the plurality of thermocouple mounting holes 15 are arranged at equal intervals along the length direction of the cutter 1;

[0033] The cutter 1 comprises a cutter body 11 , and cutter grooves 12 are formed on both sides of the cutter body 11 .

[0034] By adopting the above technical solution, the cutter body 11 is designed with a knife groove 12 to facilitate the fixing of the cutter 1, the top of the cutter body 11 is designed with a slope at a certain angle, which is convenient for the installation of the thermocouple 3, and a thermocouple mounting hole 15 is opened on the top of the cutter body 11 for easy installation; the thermostat 1 26, the thermostat 2 27 and the thermostat 3 28 adjust the average temperature according to the bottom temperature measuring point 16. The position of the temperature measuring point 16 is designed to be close to the blade, which is conducive to the thermostat to more accurately schedule the temperature, form an efficient tool heating system, improve the uniformity of tool heating, reduce the probability of thermal expansion damage to the tool material, and thus affect the processing accuracy.

[0035] In this embodiment, the heating rod component 2 includes a heating rod 21, one end of which is integrally provided with a right-angle adapter 22, and a quick connector is provided on the top of the right-angle adapter 22; the heating rod component 2 includes a main heating rod and two auxiliary heating rods, the main heating rod is installed at the center of the main heating rod mounting hole 13, and the two auxiliary heating rods are symmetrically installed at both ends of the auxiliary heating rod mounting hole 14 to assist in heating the cold end of the main heating rod;

[0036] The quick connector consists of a male connector 23 and a female connector 24 ; the male connector 23 is connected to the right-angle adapter 22 ; and a wire 25 is externally connected to the female connector 24 .

[0037] By adopting the above technical solution,

[0038] The replaceable electric heating rod used in the cutter body 11 does not require a power compensation type, and only an ordinary electric heating rod needs to be used, which saves costs. At the same time, multiple groups of temperature controllers independently control multiple groups of heating rods to prevent errors or deviations in power distribution caused by long-term use and aging of the product, resulting in uneven temperature distribution and increasing the service life; the wire 25 of the electric heating rod is electrically connected using the male head 23 and the female head 24, which can be quickly plugged in and out and quickly disassembled, making it easy to replace or maintain.

[0039] In this embodiment, a temperature measuring point 16 is provided at the bottom of the inner side of each thermocouple mounting hole 15; the thermocouple 3 includes a needle-type temperature measuring probe 35, which is arranged in the thermocouple mounting hole 15 and contacts the temperature measuring point 16; the needle-type temperature measuring probe 35 is connected to a metal shielding wire 32, and the other end of the metal shielding wire 32 is connected to a Y-shaped crimping terminal;

[0040] One end of the needle-type temperature probe 35 is provided with a nut 33 threadedly connected to the thermocouple mounting hole 15 ; a spring 34 is also sleeved on the needle-type temperature probe 35 .

[0041] By adopting the above technical solution, the thermocouple 3 is a needle spring thermocouple, the bottom of which is inserted into the temperature measuring point 16 through the needle temperature probe 35, and the top is connected to the thermostat 1 26, the thermostat 2 27 and the thermostat 3 28 through the Y-type crimping terminal 31. The needle spring thermocouple is also equipped with a spring 34. After being fixed, the elastic force of the spring 34 facilitates the needle temperature probe 35 to be pressed tightly against the temperature measuring point 16, so that the needle temperature probe 35 is in close contact with the temperature measuring point 16, thereby improving the accuracy of temperature control.

[0042] The working principle of the present invention is as follows: by adopting the above technical solution, the cutter body 11 is designed with a knife groove 12 to facilitate the fixing of the cutter 1, the top of the cutter body 11 is designed with a slope at a certain angle to facilitate the installation of the thermocouple 3, and a thermocouple mounting hole 15 is opened on the top of the cutter body 11 to facilitate installation; the thermostat 1 26, the thermostat 2 27 and the thermostat 3 28 adjust the average temperature according to the bottom temperature measuring point 16, and the position of the temperature measuring point 16 is designed to be close to the blade, which is conducive to more accurate temperature regulation by the thermostat, forming an efficient tool heating system, improving the uniformity of tool heating, and reducing the probability of thermal expansion damage to the tool material, thereby affecting the processing accuracy;

[0043] The replaceable electric heating rod used in the cutter body 11 does not require a power compensation type, and only an ordinary electric heating rod can be used, which saves costs. At the same time, multiple groups of thermostats independently control multiple groups of heating rods, preventing errors or deviations in power distribution caused by long-term use and aging of the product, resulting in uneven temperature distribution, thereby increasing the service life; the wire 25 of the electric heating rod is electrically connected by a male connector 23 and a female connector 24, which can be quickly plugged in and removed, making it easy to replace or maintain;

[0044] During installation, the thermocouple 3 is a needle spring thermocouple. The bottom is inserted into the temperature measuring point 16 through the needle temperature probe 35, and the top is connected to the thermostat 1 26, the thermostat 2 27 and the thermostat 3 28 through the Y-type crimping terminal 31. The needle spring thermocouple is also equipped with a spring 34. After fixing, the elastic force of the spring 34 helps the needle temperature probe 35 to be pressed tightly against the temperature measuring point 16, so that the needle temperature probe 35 is in close contact with the temperature measuring point 16, thereby improving the accuracy of temperature control.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A uniform temperature hot cutter using multiple sets of heating rods, characterized by: The cutter (1) comprises a cutter (1), both ends of which are provided with auxiliary heating rod mounting holes (14); one end of which is provided with a main heating rod mounting hole (13); and heating rod components (2) are provided in both the main heating rod mounting hole (13) and the auxiliary heating rod mounting hole (14); There are multiple heating rod components (2), and the multiple heating rod components (2) are electrically connected to the thermostat 1 (26), the thermostat 2 (27) and the thermostat 3 (28) respectively through the wire (25); The top of the cutter (1) has a horizontal surface and an inclined surface, wherein the inclined surface is provided with a plurality of thermocouple mounting holes (15) for facilitating the installation of thermocouples (3); the plurality of thermocouple mounting holes (15) are arranged at equal intervals along the length direction of the cutter (1).

2. The uniform temperature hot cutter using multiple groups of heating rods according to claim 1, characterized in that: The cutter (1) comprises a cutter body (11), and cutter grooves (12) are provided on both sides of the cutter body (11).

3. The uniform temperature hot cutter using multiple groups of heating rods according to claim 1, characterized in that: The heating rod component (2) includes a heating rod (21), one end of which is integrally provided with a right-angle adapter (22), and the top of the right-angle adapter (22) is provided with a quick connector; the heating rod component (2) includes a main heating rod and two auxiliary heating rods, the main heating rod is installed at the center position of the main heating rod installation hole (13), and the two auxiliary heating rods are symmetrically installed at both ends of the auxiliary heating rod installation hole (14) to assist in heating the cold end of the main heating rod.

4. The uniform temperature hot cutter using multiple groups of heating rods according to claim 3, characterized in that: The quick connector is composed of a male head (23) and a female head (24); wherein the male head (23) is connected to the right-angle adapter (22); and the female head (24) is externally connected to a wire (25).

5. The uniform temperature hot cutter using multiple groups of heating rods according to claim 4, characterized in that: A temperature measuring point (16) is provided at the bottom of the inner side of each thermocouple mounting hole (15); the thermocouple (3) includes a needle-type temperature measuring probe (35), which is arranged in the thermocouple mounting hole (15) and contacts the temperature measuring point (16); the needle-type temperature measuring probe (35) is connected to a metal shielding wire (32), and the other end of the metal shielding wire (32) is connected to a Y-type crimping terminal.

6. The uniform temperature hot cutter using multiple groups of heating rods according to claim 5, characterized in that: One end of the needle-type temperature measuring probe (35) is provided with a nut (33) threadedly connected to the thermocouple mounting hole (15); a spring (34) is also sleeved on the needle-type temperature measuring probe (35).