Fixing device for temperature measuring probe of toughening furnace

Abstract

A fixing device for a temperature measuring probe of a toughening furnace comprises a mounting rack fixed on the outer side of the bottom surface of the toughening furnace and a self-balancing body, and a self-balancing probe bracket of the self-balancing body is borne in the mounting rack in a manner of universal rotation relative to the mounting rack; the temperature measuring probe is located on the upper side of the rotating center of the self-balancing probe support, and the temperature measuring end of the temperature measuring probe vertically penetrates through the reserved temperature measuring hole and vertically corresponds to the roller way gap. The lower side of the rotation center of the self-balancing probe support is connected with a counterweight part which enables the gravity center of the self-balancing body to descend to the position below the rotation center of the self-balancing probe support, and under the gravity effect of the counterweight part, the temperature measuring probe can rotate along the rotation center of the self-balancing probe support along with the self-balancing probe support to be vertically upward all the time. The fixing device for the temperature measuring probe of the steel furnace can keep the temperature measuring probe vertical in a self-adaptive manner, so that the temperature measuring probe is vertical to glass in the furnace body, the influence of deformation of the furnace body on temperature detection is overcome, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of glass tempering furnaces, and specifically relates to a fixing device for a temperature measuring probe of a tempering furnace. Background Art

[0002] An infrared thermometer is a non-imaging monitoring instrument that can only monitor the average temperature at a measurement point or within a small field of view. Its basic structure includes several main functional parts such as an infrared detector, an optical system, an information processing system, signal amplification, and result display. Its working process can be described as follows: First, the optical system collects the infrared radiation energy generated by the thermal-induced molecular vibration of the target object through the infrared detector, and converges the received radiation energy through a lens after being reflected by a beam splitter. After being processed by a filter, it is received by the infrared detector. The detector converts the received energy into an electrical signal, which is then amplified and processed by an amplifier and displayed by a display to show the temperature of the target object.

[0003] The factors affecting the temperature measurement of an infrared thermometer include emissivity, field of view, installation distance, spectral range, installation angle, vibration, the material and surface characteristics of the object to be measured, etc., as well as environmental factors such as dust, water vapor, and smoke.

[0004] The patent with the authorization announcement number CN207600631U relates to a temperature measuring device for glass tempering. This device is arranged at the bottom of the tempering furnace and is provided with a column, a porcelain tube, a protective lens, a temperature measuring probe, a protective sleeve, a baffle, a small air box, etc., and is used to measure the lower surface temperature of ordinary glass and coated glass. This device adopts a process of controlling the glass outlet temperature for tempered glass production, changing the previous tempering process that judges the heating time based on the experience of operators, and improving the qualified rate of tempered glass products and the stability of product quality.

[0005] In the current prior art, when installing a temperature measuring system, first, a test hole is reserved in the gap of the ceramic roller path at the bottom of the furnace body. The infrared temperature measuring probe is installed on an installation bracket fixed on the foundation at the bottom of the furnace body, and the coaxiality between the probe and the test hole is adjusted. During temperature measurement, the probe detects the temperature of the lower surface of the glass through the test hole and transmits the temperature value to the control center in real time to obtain the real-time temperature value of the glass. However, the installation of the infrared temperature measuring probe is often carried out in a cold state. When in a hot state, the heating furnace will undergo slight uncontrollable deformation or displacement. At this time, the relative position between the temperature measuring hole on the furnace body and the infrared probe will change, affecting the perpendicularity between the infrared probe and the glass surface, and further affecting factors such as the temperature measuring path and temperature measuring angle of the infrared probe, resulting in measurement deviation or measurement error, seriously affecting the accuracy and stability of temperature measurement, and causing fluctuations in product quality. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a fixing device for a temperature measuring probe of a toughening furnace, which can adaptively keep the temperature measuring probe vertical, make the temperature measuring probe perpendicular to the glass in the furnace body, thereby overcoming the influence of furnace body deformation on temperature detection and ensuring product quality.

[0007] The technical solution adopted by the present utility model is as follows: A fixing device for a temperature measuring probe of a toughening furnace. There is a roller path in the toughening furnace that supports and can drive the glass to move horizontally. There is also a reserved temperature measuring hole on the bottom surface of the toughening furnace corresponding vertically to the gap of the roller path.

[0008] The fixing device includes a mounting frame fixed on the outer side of the bottom surface of the toughening furnace and a self-balancing body. The self-balancing body includes a self-balancing probe support, a temperature measuring probe, and a counterweight.

[0009] The self-balancing probe support is carried in the mounting frame in a manner of rotating universally relative to the mounting frame.

[0010] The temperature measuring probe is located above the rotation center of the self-balancing probe support. The temperature measuring end of the temperature measuring probe passes vertically through the reserved temperature measuring hole and corresponds to the gap of the roller path up and down.

[0011] A counterweight is connected to the lower side of the rotation center of the self-balancing probe support to lower the center of gravity of the self-balancing body below the rotation center of the self-balancing probe support. Under the action of the gravity of the counterweight, the temperature measuring probe can rotate along the rotation center of the self-balancing probe support with the self-balancing probe support to always be vertically upward.

[0012] As a preferred solution, the mounting frame includes a fixed seat, a pull rod, and a suspension seat.

[0013] There are at least two fixed seats, which are equally angularly distributed along the central axis of the reserved temperature measuring hole. The suspension seat is located directly below the reserved temperature measuring hole, and the suspension seat is connected by pull rods corresponding to the fixed seats one by one.

[0014] As a preferred solution, the self-balancing probe support is connected to the mounting frame through a leveling ring group.

[0015] The leveling ring group includes a nested inner ring and outer ring, and the centers of the inner ring and outer ring coincide with the rotation center of the self-balancing probe support. The mounting frame, outer ring, inner ring, and self-balancing probe support are nested in sequence and are respectively rotationally connected through three groups of rotating support shafts, and the axes of two adjacent groups of rotating support shafts in the radial direction are perpendicular to each other.

[0016] As a preferred solution, the self-balancing probe support is a rotating body.

[0017] As a preferred solution, the temperature measuring probe includes an infrared temperature measuring probe body fixed on the upper side of the self-balancing probe bracket. A probe protection box is arranged on the receiving side of the infrared temperature measuring probe body, and a probe optical path protection sleeve passing through the reserved temperature measuring hole is provided on the probe protection box.

[0018] As a preferred solution, the counterweight includes a counterweight block, and the counterweight block is movably connected to the self-balancing probe bracket through a connecting member.

[0019] As a preferred solution, the counterweight block is a rotating body.

[0020] As a preferred solution, the connecting member is a chain or a rope.

[0021] As a preferred solution, the reserved temperature measuring hole is a conical hole with a larger upper part and a smaller lower part.

[0022] As a preferred solution, the pull rod is a rod with adjustable length.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. It can adaptively keep the temperature measuring probe vertical, making the temperature measuring probe perpendicular to the glass in the furnace body, thereby overcoming the influence of furnace body deformation on temperature detection and ensuring the quality of products.

[0025] 2. The leveling ring group can keep the self-balancing probe bracket and the temperature measuring probe on it flexible in rotation, which is beneficial to quickly keep vertical.

[0026] 3. The temperature measuring probe is suspended and extends into the toughening furnace, which can ensure the accuracy of temperature measurement and does not interfere with the reserved temperature measuring hole at the same time.

[0027] 4. The gravity of the counterweight keeps the temperature measuring probe vertical, without the need for other equipment for assistance, with flexible arrangement and good energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is the overall installation schematic diagram of the present utility model;

[0030] Figure 2 It is the schematic diagram after the leveling ring group of the present utility model is sectioned;

[0031] Figure 3It is a top view schematic diagram of the leveling ring group of the present utility model;

[0032] Figure 4 It is a schematic diagram of the position of the fixed seat of the present utility model.

[0033] Reference numerals:

[0034] 1. Tempering furnace, 101. Roller path, 102. Reserved temperature measurement hole;

[0035] 2. Mounting frame, 201. Fixed seat, 202. Pull rod, 203. Suspension seat;

[0036] 3. Self-balancing probe support;

[0037] 4. Temperature measurement probe, 401. Infrared temperature measurement probe body, 402. Probe protection box, 403. Probe optical path protection sleeve;

[0038] 5. Counterweight, 501. Counterweight block, 502. Connecting piece;

[0039] 6. Inner ring;

[0040] 7. Outer ring;

[0041] 8. Rotating support shaft;

[0042] 9. Glass. Detailed implementation manners

[0043] Next, the present utility model will be specifically described through exemplary implementation manners. However, it should be understood that without further description, the elements, structures and features in one implementation manner can also be beneficially combined into other implementation manners.

[0044] It should be noted that: Unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meaning understood by those with ordinary skills in the field to which the present utility model belongs. The words such as "a", "one" or "the" used in the specification and claims of the patent application of the present utility model do not express a quantity limitation, but mean that there is at least one; the "first", "second" and "third" used herein should not be regarded as a limitation on the order of components, but only to distinguish different components; words such as "including" or "comprising" indicate that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, but do not exclude other elements or objects with the same functions.

[0045] In order to more clearly describe the specific structural composition of the fixing device of the temperature measurement probe of the tempering furnace, the following describes this embodiment in combination with the attached Figures 1-4 Describe this embodiment:

[0046] As shown Figure 1 In a toughening furnace, there is a roller path 101 provided inside the furnace body 1 to support and drive the glass 9 to move horizontally. A reserved temperature measurement hole 102 corresponding to the gap of the roller path 101 vertically is also provided on the bottom surface of the toughening furnace 1, ensuring that the temperature measurement probe can directly face the glass through the reserved temperature measurement hole;

[0047] Due to the toughening furnace 1 undergoing multiple temperature increases and decreases, the furnace body will undergo slight uncontrollable deformation in the hot state. To prevent the temperature measurement probe from tilting accordingly, refer to Figure 1 and Figure 2 , in the present invention:

[0048] The fixing device includes a mounting frame 2 fixed on the outer side of the bottom surface of the toughening furnace 1 and a self - balancing body. The self - balancing body includes a self - balancing probe support 3, a temperature measurement probe 4, and a counterweight 5; the self - balancing probe support 3 is carried in the mounting frame 2 in a manner of rotating in all directions relative to the mounting frame 2; the temperature measurement probe 4 is located above the rotation center of the self - balancing probe support 3. The temperature measurement end of the temperature measurement probe 4 vertically passes through the reserved temperature measurement hole 102 and corresponds to the gap of the roller path 101 up and down; a counterweight 5 that lowers the center of gravity of the self - balancing body below the rotation center of the self - balancing probe support 3 is connected to the lower side of the rotation center of the self - balancing probe support 3. Under the action of the gravity of the counterweight 5, the temperature measurement probe 4 can rotate along the rotation center of the self - balancing probe support 3 with the self - balancing probe support 3 to always be vertically upward and perpendicular to the glass.

[0049] It can adaptively keep the temperature measurement probe 4 vertical, making the temperature measurement probe 4 perpendicular to the glass inside the furnace body, thereby overcoming the influence of furnace body deformation on temperature detection and ensuring the quality of the product. The gravity of the counterweight 5 keeps the temperature measurement probe 4 vertical, without the need for other equipment for assistance, with flexible layout and energy saving.

[0050] Inside the reserved temperature measurement hole 102, since the swing angle of the upper end of the temperature measurement probe 4 for adaptive correction is greater than that of the lower end, the reserved temperature measurement hole 102 can be designed as a tapered hole with a larger upper part and a smaller lower part.

[0051] Exemplarily, the mounting frame 2 includes the following structure: a fixed seat 201, a pull rod 202, and a suspension seat 203. There are at least two fixed seats 201 and they are equally angularly distributed along the central axis of the reserved temperature measurement hole 102. The suspension seat 203 is located directly below the reserved temperature measurement hole 102, and the suspension seat 203 is connected by pull rods 202 corresponding to the fixed seats 201 one by one. The function of the mounting frame 2 is to carry the self - balancing probe support 3 and the temperature measurement probe 4. To maintain stability, multiple groups of fixed seats 201 and corresponding pull rods 202 can be set. In the Figure 4 example, there are three fixed seats 201.

[0052] To facilitate the leveling of the balance probe bracket 3 during initial installation, the pull rod 202 is a rod with adjustable length. By adjusting the lengths of different pull rods 202, the balance probe bracket 3 connected to the lower end of the pull rod 202 is in a balanced state. During specific installation, the two ends of the pull rod 202 are respectively rotatably connected to the balance probe bracket 3 and the corresponding fixed seat 201. The rod with adjustable length can be a telescopic sleeve rod with a locking bolt, or composed of two sleeve rods connected by threads.

[0053] Refer to Figure 2 and Figure 3 The self-balancing probe bracket 3 is connected to the mounting frame 2 through a leveling ring group; the leveling ring group includes an inner ring 6 and an outer ring 7 sleeved together, and the centers of the inner ring 6 and the outer ring 7 coincide with the rotation center of the self-balancing probe bracket 3. The mounting frame 2, the outer ring 7, the inner ring 6, and the self-balancing probe bracket 3 are nested in sequence and are respectively rotatably connected through three groups of rotating support shafts 8. The axes of two adjacent groups of rotating support shafts 8 in the radial direction are perpendicular to each other; the rotating support shaft 8 specifically includes a shaft Ⅰ 801, a shaft Ⅱ 802, and a shaft Ⅲ 803. The shaft Ⅰ 801 is used for the rotational connection between the suspension seat 203 and the outer ring 7, the shaft Ⅱ 802 is used for the rotational connection between the outer ring 7 and the inner ring 6, and the shaft Ⅲ 803 is used for the rotational connection between the inner ring 6 and the self-balancing probe bracket 3;

[0054] The rotational support axes of the mounting frame 2, the outer ring 7, the inner ring 6, and the self-balancing probe bracket 3 are perpendicular to each other in sequence, can rotate freely, and restrict each other. In the cold state, the outer ring 7 and the inner ring 6 are in a horizontal position, and the center of gravity of the entire internal self-balancing body is lower than the support surface and is in a stable state. The self-balancing probe bracket 3 at the central axis is kept vertically upward under the action of the bottom counterweight 5. In the hot state, the heating furnace will undergo slight uncontrollable deformation or displacement, which will drive the movement of the fixed base at the bottom of the furnace body. Its movement can be simply decomposed into two components along the X-axis and the Y-axis respectively. When the furnace body has a tendency to drive the self-balancing probe bracket 3 to move or rotate, the outer ring 7 and the inner ring 6 with perpendicular rotational support axes in the self-balancing probe bracket 3 rotate in the opposite direction, canceling the rotational movement applied to the self-balancing probe bracket 3 by the outside world, thereby preventing the temperature measurement probe 4 from tilting. The self-balancing probe bracket 3 remains stationary (does not rotate) according to inertia, thus keeping the temperature measurement probe 4 always perpendicular to measure the temperature of the lower surface of the glass, ensuring the accuracy and stability of temperature measurement.

[0055] To improve stability, the self-balancing probe bracket 3 is designed as a rotating body to avoid the influence of uneven mass distribution on the entire self-balancing body. The self-balancing probe bracket 3 can specifically be spherical, cylindrical, conical, frustum-shaped, etc.

[0056] In the above embodiments, the temperature measurement probe 4 generally includes an infrared temperature measurement probe body 401 fixed on the upper side of the self-balancing probe bracket 3. A probe protection box 402 is provided on the receiving side of the infrared temperature measurement probe body 401, and a probe optical path protection sleeve 403 passing through the reserved temperature measurement hole 102 is provided on the probe protection box 402. The probe protection box 402 and the probe optical path protection sleeve 403 play a role in protecting the sensing element of the infrared temperature measurement probe body 401.

[0057] In the above embodiments, the function of the counterweight 5 is to lower the center of gravity of the self-balancing body. Generally, a mass of 1.5 - 2 kg is sufficient. The counterweight 5 includes a counterweight block 501, and the counterweight block 501 is movably connected to the self-balancing probe bracket 3 through a connecting member 502. The counterweight block 501 can also be a rotating body, including but not limited to spherical, cylindrical, conical, and frustum-shaped. The function of the connecting member 502 is to connect the counterweight block 501 without restricting the counterweight block 501. The connecting member 502 can specifically be a chain or a rope, or other structures that can flexibly connect the counterweight block 501 and the self-balancing probe bracket 3.

[0058] Parts not described in detail in this embodiment are prior art.

[0059] It should be noted that although the present invention has been described through the above embodiments, the present invention can also have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and deformations to the present invention, but these changes and deformations should all fall within the scope protected by the appended claims of the present invention and their equivalents.

Claims

1. A fixing device for a temperature measuring probe of a tempering furnace, wherein a roller (101) supporting and driving a glass (9) to move horizontally is provided in the tempering furnace (1), and a reserved temperature measuring hole (102) vertically corresponding to the gap of the roller (101) is also provided on the bottom surface of the tempering furnace (1), characterized in that: The fixing device comprises a mounting frame (2) fixed to the outside of the bottom surface of the tempering furnace (1) and a self-balancing body, wherein the self-balancing body comprises a self-balancing probe bracket (3), a temperature measuring probe (4) and a counterweight (5); The self-balancing probe bracket (3) is carried in the mounting frame (2) in a universally rotatable manner relative to the mounting frame (2); The temperature measuring probe (4) is located on the upper side of the rotation center of the self-balancing probe bracket (3), and the temperature measuring end of the temperature measuring probe (4) vertically passes through the reserved temperature measuring hole (102) and corresponds to the gap between the rollers (101) in the upper and lower directions; A counterweight (5) is connected to the lower side of the rotation center of the self-balancing probe bracket (3) for lowering the center of gravity of the self-balancing body to below the rotation center of the self-balancing probe bracket (3); under the action of the gravity of the counterweight (5), the temperature measuring probe (4) can rotate along the rotation center of the self-balancing probe bracket (3) with the self-balancing probe bracket (3) until it is always vertically upward.

2. The fixing device for the temperature measuring probe of the toughening furnace according to claim 1, characterized in that: The mounting frame (2) comprises a fixing seat (201), a pull rod (202) and a suspension seat (203); There are no less than two fixed seats (201) and they are distributed at equal angles along the central axis of the reserved temperature measuring hole (102); the hanging seat (203) is located directly below the reserved temperature measuring hole (102), and the hanging seat (203) is connected to the fixed seat (201) via a pull rod (202) that corresponds one to one.

3. The fixing device for the temperature measuring probe of a toughening furnace according to claim 1, characterized in that: The self-balancing probe bracket (3) is connected to the mounting frame (2) via a leveling ring assembly; The leveling ring group comprises a sleeved inner ring (6) and an outer ring (7), wherein the centers of the inner ring (6) and the outer ring (7) coincide with the rotation center of the self-balancing probe bracket (3), the mounting frame (2), the outer ring (7), the inner ring (6), and the self-balancing probe bracket (3) are nested in sequence and are rotatably connected via three groups of rotating support shafts (8), respectively, and the axes of two radially adjacent groups of rotating support shafts (8) are perpendicular to each other.

4. The fixing device of the temperature measuring probe of the toughening furnace according to claim 1, characterized in that: The self-balancing probe bracket (3) is a rotating body.

5. The fixing device of a temperature measuring probe for a toughening furnace according to claim 1, characterized in that: The temperature measuring probe (4) comprises an infrared temperature measuring probe body (401) fixed on the upper side of the self-balancing probe bracket (3); a probe protection box (402) is arranged on the receiving side of the infrared temperature measuring probe body (401); and the probe protection box (402) has a probe optical path protection cover (403) passing through the reserved temperature measuring hole (102).

6. The fixing device for the temperature measuring probe of a toughening furnace according to claim 1, characterized in that: The counterweight component (5) comprises a counterweight block (501), and the counterweight block (501) is movably connected to the self-balancing probe bracket (3) via a connecting piece (502).

7. The fixing device for the temperature measuring probe of a toughening furnace according to claim 6, characterized in that: The counterweight block (501) is a rotating body.

8. The fixing device for the temperature measuring probe of a toughening furnace according to claim 6, characterized in that: The connecting member (502) is a chain or a rope.

9. The fixing device for the temperature measuring probe of a toughening furnace according to claim 1, characterized in that: The reserved temperature measurement hole (102) is a tapered hole that is larger at the top and smaller at the bottom.

10. The fixing device for the temperature measuring probe of a toughening furnace according to claim 2, characterized in that: The pull rod (202) is a rod with adjustable length.

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