Plug tube type pressure spring fixed thermocouple

Abstract

The utility model discloses a plug tube type pressure spring fixed thermocouple, which belongs to the technical field of temperature sensors, and comprises an external connecting piece, a pressure spring fixed thermocouple and a pressure spring fixed thermocouple, and is characterized in that the external connecting piece comprises a temperature measuring plug tube, one end of the temperature measuring plug tube is sealed, and the other end is open; the internal temperature measuring piece comprises a thermocouple positioned in the temperature measuring plug pipe; and the pressing piece is detachably connected with the temperature measuring plug tube, and the pressing piece presses the thermocouple to enable the working end of the thermocouple to be in contact with the inner bottom wall of the sealed end of the temperature measuring plug tube. According to the utility model, the temperature of the molten metal in the die cavity can be measured only by processing the through hole in the die and installing the temperature measuring plug tube in the through hole, so that the processing difficulty is reduced, the processing efficiency is improved, and the use is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, in particular to a plug-tube type compression spring fixed type thermocouple. Background Art

[0002] As a temperature measuring element, the spring-fixed thermocouple can measure and record the temperature continuously and easily, and is widely used in the industry. In casting production, real-time measurement and recording of the temperature of the mold is extremely important for the control of the casting process. Compared with other temperature measurement methods, the spring-fixed thermocouple can achieve real-time monitoring of the temperature of each point of the mold at a lower cost.

[0003] When measuring the temperature of the molten metal in the mold cavity, during the production process, it is usually necessary to process a thermocouple blind hole on the mold surface, and install the sleeve in the thermocouple blind hole to achieve the installation of the thermocouple, thereby achieving the measurement of the temperature of the molten metal in the mold; and in order to avoid direct contact between the molten metal and the working end of the thermocouple, the bottom of the thermocouple blind hole cannot be opened, that is, it cannot be a through hole. At the same time, it is necessary to ensure that the bottom of the blind hole is not too thick to prevent the working end of the thermocouple from being too far away from the mold cavity, thereby reducing the temperature measurement accuracy. Therefore, the processing requirements for the thermocouple blind hole are high and the processing difficulty is relatively large.

[0004] Therefore, a plug-tube type compression spring fixed thermocouple is proposed. Utility Model Content

[0005] The utility model aims to provide a plug-tube type compression spring fixed thermocouple, aiming to solve or improve at least one of the above technical problems.

[0006] To achieve the above object, the utility model provides the following solution: The utility model provides a plug-tube type compression spring fixed thermocouple, which is installed on the through hole of the mold, including:

[0007] An external connector, the external connector comprising a temperature measuring plug tube, one end of the temperature measuring plug tube is sealed and the other end is open;

[0008] An internal temperature measuring component, the internal temperature measuring component comprising a thermocouple located in the temperature measuring plug tube;

[0009] A pressing piece is detachably connected to the temperature measuring plug tube, and the pressing piece presses the thermocouple so that the working end of the thermocouple contacts the inner bottom wall of the sealed end of the temperature measuring plug tube.

[0010] Preferably, the clamping member includes a fixing plug, which is detachably connected to the open end of the temperature measuring plug tube, and a spring is arranged between the fixing plug and the thermocouple, and both ends of the spring respectively abut against the fixing plug and one end of the thermocouple away from its working end.

[0011] Preferably, the fixing plug extends into the open end of the temperature measuring plug tube and is threadedly connected to the inner wall of the temperature measuring plug tube.

[0012] Preferably, the inner bottom wall of the sealed end of the temperature measuring plug tube is conical.

[0013] Preferably, an outer wall of the temperature measuring plug tube is provided with an external thread, an inner hole of the mold is provided with an internal thread, and the temperature measuring plug tube is threadedly connected to the through hole.

[0014] Preferably, the temperature measuring plug tube extends into the through hole and is welded to the through hole.

[0015] The utility model discloses the following technical effects: when measuring the temperature of the molten metal in the mold cavity, a through hole is directly processed on the mold, and a temperature measuring plug tube is installed in the through hole, so that the sealed end of the temperature measuring plug tube is close to the molten metal in the mold cavity, so that the thermocouple in the temperature measuring plug tube measures the temperature of the molten metal. The utility model provides a temperature measuring plug tube with one end sealed, and the working end of the thermocouple is in close contact with the inner bottom wall of the sealed end of the temperature measuring plug tube. It only needs to process a through hole on the mold and install the temperature measuring plug tube in the through hole, so as to realize the measurement of the temperature of the molten metal in the mold cavity, reduce the processing difficulty, and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0019] In the figure: 1. fixing plug; 2. spring; 3. temperature measuring plug tube; 4. thermocouple; 5. compensation wire. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Reference Figure 1-Figure 2 The utility model provides a plug-tube type compression spring fixed thermocouple, which is installed on the through hole of the mold, including:

[0023] External connector, the external connector includes a temperature measuring plug tube 3, one end of the temperature measuring plug tube 3 is sealed and the other end is open; the temperature measuring plug tube 3 is installed in the through hole of the mold, and the sealed end of the temperature measuring plug tube 3 can be processed according to the shape of the mold cavity so as to be installed in a part with complex shape;

[0024] An internal temperature measuring component, the internal temperature measuring component comprises a thermocouple 4 located in the temperature measuring plug tube 3;

[0025] A pressing piece, which is detachably connected to the temperature measuring plug tube 3, and the pressing piece presses the thermocouple 4 so that the working end of the thermocouple 4 contacts the inner bottom wall of the sealed end of the temperature measuring plug tube 3;

[0026] When measuring the temperature of the molten metal in the mold cavity, a through hole is directly processed on the mold, and the temperature measuring plug tube 3 is installed in the through hole, so that the sealed end of the temperature measuring plug tube 3 is close to the molten metal in the mold cavity, so that the thermocouple 4 in the temperature measuring plug tube 3 measures the temperature of the molten metal; the size of the temperature measuring plug tube 3 is similar to the size of the exhaust plug in the mold, and the installation conditions of the thermocouple 4 can be met without complex modifications to the mold, and there will be no adverse effects on the mold; and when the present application is installed in the through hole, the exposed size of the entire device is small, the requirement for the mold space is small, and it is easy to use;

[0027] The utility model provides a temperature measuring plug tube 3 with a sealed end, and makes the working end of the thermocouple 4 closely contact with the inner bottom wall of the sealed end of the temperature measuring plug tube 3. It only needs to process a through hole on the mold and install the temperature measuring plug tube 3 in the through hole, so as to realize the measurement of the temperature of the molten metal in the mold cavity, reduce the processing difficulty, improve the processing efficiency, and is convenient to use and install, with low requirements on the installation space.

[0028] Further optimized solution, the pressing member includes a fixed plug 1, the fixed plug 1 and the open end of the temperature measuring plug tube 3 are detachably connected, a spring 2 is arranged between the fixed plug 1 and the thermocouple 4, and the two ends of the spring 2 are respectively against the fixed plug 1 and the end of the thermocouple 4 away from the working end thereof; the thermocouple 4 is electrically connected with a compensation wire 5, and the compensation wire 5 extends out of the temperature measuring plug tube 3;

[0029] By setting the spring 2, the working end of the thermocouple 4 is in close contact with the inner bottom wall of the sealed end of the temperature measuring plug tube 3, avoiding the separation of the thermocouple 4 from the inner bottom wall of the sealed end of the mold temperature measuring plug tube 3 due to mechanical movement of the mold during the casting process, thereby improving the accuracy of temperature measurement.

[0030] According to a further optimized solution, the fixed plug 1 extends into the open end of the temperature measuring plug tube 3 and is threadedly connected to the inner wall of the temperature measuring plug tube 3 .

[0031] According to a further optimization scheme, the inner bottom wall of the sealed end of the temperature measuring plug tube 3 is tapered to ensure that the working end of the thermocouple 4 is located at the bottom of the temperature measuring plug tube 3 and does not stick to the inner wall of the plug body or is in a suspended state.

[0032] According to a further optimized solution, an external thread is provided on the outer wall of the temperature measuring plug tube 3, an internal thread is provided in the through hole of the mold, and the temperature measuring plug tube 3 is connected to the through hole thread.

[0033] To further optimize the solution, the temperature measuring plug tube 3 extends into the through hole and is welded to the through hole.

[0034] When the utility model is in use, a through hole is processed on the mold, and the temperature measuring plug tube 3 is installed in the through hole by threaded connection or welding, so that the temperature measuring plug tube 3 and the mold are fixed; the thermocouple 4 and the spring 2 are placed in the temperature measuring plug tube 3, and the fixing plug 1 is threadedly connected in the temperature measuring plug tube 3, so that the spring 2 presses the thermocouple 4, so that the working end of the thermocouple is close to the conical sealing end of the temperature measuring plug tube 3, ensuring that the thermocouple 4 measures an accurate temperature value; during installation, the distance between the bottom of the temperature measuring plug tube 3 and the mold cavity can be made smaller (about 1mm), so that the temperature change of the metal liquid in the mold cavity can be measured more accurately; and the overall structure of the device is simple and easy to use.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A plug-tube type compression spring fixed thermocouple, installed on the through hole of the mold, characterized in that: include: An external connecting piece, the external connecting piece comprising a temperature measuring plug tube (3), the temperature measuring plug tube (3) having one end sealed and the other end open; An internal temperature measuring component, the internal temperature measuring component comprising a thermocouple (4) located inside the temperature measuring plug tube (3); A pressing piece, wherein the pressing piece is detachably connected to the temperature measuring plug tube (3), and the pressing piece presses the thermocouple (4) so ​​that the working end of the thermocouple (4) contacts the inner bottom wall of the sealed end of the temperature measuring plug tube (3).

2. The plug-tube type compression spring fixed thermocouple according to claim 1, characterized in that: The clamping member comprises a fixing plug (1), the fixing plug (1) being detachably connected to the open end of the temperature measuring plug tube (3), a spring (2) being arranged between the fixing plug (1) and the thermocouple (4), the two ends of the spring (2) respectively abutting against the fixing plug (1) and the end of the thermocouple (4) away from the working end thereof.

3. The plug-tube type compression spring fixed thermocouple according to claim 2, characterized in that: The fixing plug (1) extends into the open end of the temperature measuring plug tube (3) and is threadedly connected to the inner wall of the temperature measuring plug tube (3).

4. The plug-tube type compression spring fixed thermocouple according to claim 1, characterized in that: The inner bottom wall of the sealed end of the temperature measuring plug tube (3) is conical.

5. The plug-tube type compression spring fixed thermocouple according to claim 1, characterized in that: The outer wall of the temperature measuring plug tube (3) is provided with an external thread, the through hole of the mold is provided with an internal thread, and the temperature measuring plug tube (3) is threadedly connected to the through hole.

6. The plug-tube type compression spring fixed thermocouple according to claim 1, characterized in that: The temperature measuring plug tube (3) extends into the through hole and is welded to the through hole.

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