Overflow brick clamping device and control method thereof

Abstract

The invention discloses an overflow brick clamping device and a control method thereof, and belongs to the technical field of substrate glass manufacturing. The overflow brick clamping device comprises the pressure sensor, the compression transmission device and the motor which are sequentially connected, the pressure sensor can accurately detect the transverse clamping force applied to the bottom of an overflow brick in real time, an operator can know the numerical value of the clamping force at any time, and therefore the accuracy and controllability of the clamping force are guaranteed; the controller receives and processes clamping force data from the pressure sensor, converts power provided by the motor into clamping force for the overflow brick through the compression transmission device, and automatically adjusts the clamping force according to a preset threshold value; according to the device, the transverse clamping force is monitored in real time and accurately adjusted, so that the overflow brick is kept in a stable clamping state in the long-term use process, the creep speed of the overflow brick can be effectively reduced, and the creep quantity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of substrate glass manufacturing, and in particular to an overflow brick clamping device and a control method thereof. Background Art

[0002] The overflow down-draw method is one of the main methods for manufacturing liquid crystal substrate glass. This method is to feed molten glass with appropriate viscosity into the inner groove of the overflow brick. When the inner groove of the overflow brick is full, the glass liquid will overflow along both sides of the inner groove and flow to the inclined wall of the overflow brick. Under the guidance of the drainage plate, the two streams of glass liquid will merge into one. Then it is clamped by the shaping equipment below and pulled by the traction equipment to finally form a single piece of substrate glass. In order to ensure the fluidity of the molten glass liquid in the inner groove of the overflow brick, the temperature of the muffle furnace is generally above 1200℃, and the overflow brick itself is subject to gravity. In addition, the long-term continuous operation of the substrate glass production line will cause the overflow brick to slowly deform (ie creep) during production. Since the support device is set at both ends, the middle part of the overflow brick will show a "catenary"-like bending deformation during the creep process. The creep of the overflow brick not only changes the original brick size accuracy, but also affects the fluidity of the molten glass liquid in the overflow inner groove, resulting in uneven distribution of the glass liquid, which ultimately affects the thickness quality of the substrate glass. It should be pointed out that if the creep of overflow bricks is too large, it may cause serious consequences such as cracks or even breakage of the brick body, which will directly affect production.

[0003] Through the simulation analysis of the creep process of overflow bricks, it can be found that applying a certain amount of lateral clamping force to the bottom of the overflow brick can effectively suppress high-temperature creep. In the prior art, one end of the bottom of the overflow brick is generally fixed, and then a cylinder device is used to tighten it from the other end. However, there are certain limitations in using cylinder devices. First, the cylinder device has no online detection and output function of the clamping force value, and cannot adjust the lateral clamping force at the bottom of the overflow brick in time according to the internal temperature field of the muffle furnace, the operation time of the production line and other conditions, which is not conducive to the long-term fine control of the creep amount of the overflow brick. Secondly, the long-term stability of the cylinder device has high requirements for the air source pressure, cylinder body sealing, cylinder wall lubrication, etc. Any abnormality in any of the above factors will inevitably cause the cylinder pressure to fluctuate, thereby affecting the stability of the lateral clamping force at the bottom of the overflow brick, and even causing structural damage to the overflow brick in severe cases.

[0004] In summary, the existing cylinder device technology cannot timely and accurately adjust the lateral clamping force at the bottom of the overflow brick, and it is difficult to achieve long-term fine control of the creep of the overflow brick. Therefore, how to overcome the limitations of the existing technology and achieve long-term fine control of the creep of the overflow brick has become a key issue to be solved in the field of liquid crystal substrate glass manufacturing. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an overflow brick clamping device and a control method thereof, so as to perform online monitoring of the lateral clamping force and realize timely and accurate adjustment of the clamping force, thereby slowing down the creep speed of the overflow brick and reducing the creep amount.

[0006] The present invention solves the above technical problems through the following technical solutions: An overflow brick clamping device comprises a supporting device arranged at both ends of the bottom of the overflow brick, one end of the supporting device is connected to the clamping device, the clamping device is connected to a controller, the overflow brick is provided with an overflow brick creep measuring device, and the overflow brick creep measuring device is connected to the controller; The clamping device comprises a pressure sensor, a compression transmission device and a motor which are connected in sequence and is used to apply a lateral clamping force to the bottom of the overflow brick.

[0007] A further improvement of the present invention is that one end of the supporting device is the end of the supporting device along the inclination direction of the overflow brick.

[0008] A further improvement of the present invention is that it also includes a transition connection block, and one end of the support device is connected to the pressure sensor of the clamping device via the transition connection block.

[0009] A further improvement of the present invention is that the compression transmission device is a first push rod, a spring, a second push rod and a screw rod which are connected in sequence.

[0010] A further improvement of the present invention is that both the first push rod and the second push rod are made of alloy material with high strength, high rigidity and good heat resistance.

[0011] A further improvement of the present invention is that the spring is made of an alloy material with high strength, high yield point and good fatigue resistance.

[0012] A further improvement of the present invention is that it also includes a supporting steel structure, and the clamping device is fixedly arranged on the supporting steel structure.

[0013] A further improvement of the present invention is that it also includes a cooling air supply device, a cooling air inlet is arranged on the supporting steel structure, and a hose connected to the cooling air supply device is used to reduce the temperature inside the supporting steel structure.

[0014] A further improvement of the present invention is that the pressure sensor is a resistive pressure sensor with a measuring range of 0-5000kg.

[0015] The present invention also provides a control method for an overflow brick clamping device, using the overflow brick clamping device as described above, comprising the following steps: initializing the lateral clamping force applied by the clamping device to the bottom of the overflow brick, and presetting a threshold value of the overflow brick creep amount; The overflow brick creep measuring device monitors the overflow brick creep in real time and uploads it to the controller, and the pressure sensor monitors the lateral clamping force applied by the clamping device to the bottom of the overflow brick in real time; When it is detected that the creep amount of the overflow brick reaches a threshold value, the controller adjusts the compression amount of the compression transmission device by controlling the rotation amount of the motor, thereby adjusting the lateral clamping force.

[0016] Compared with the prior art, the positive and progressive effects of the present invention are: The overflow brick clamping device provided by the present invention comprises a pressure sensor, a compression transmission device and a motor which are connected in sequence. The pressure sensor can detect the transverse clamping force applied to the bottom of the overflow brick in real time and accurately, so that the operator can know the value of the clamping force at any time, thereby ensuring the accuracy and controllability of the clamping force. The controller receives and processes the clamping force data from the pressure sensor, and converts the power provided by the motor into the clamping force for the overflow brick through the compression transmission device, and automatically adjusts the clamping force according to a preset threshold value. The device can effectively slow down the creep speed of the overflow brick caused by uneven force during long-term use of the overflow brick through real-time monitoring and accurate adjustment of the transverse clamping force, thereby reducing the creep amount, which is of great significance for improving the service life of the overflow brick, maintaining its stable performance and ensuring the normal operation of the entire system.

[0017] Furthermore, since overflow bricks are often affected by multiple factors such as gravity and temperature gradient during the production process, their creep direction may not be completely perpendicular to the bottom surface. By setting one end of the supporting device along the inclination direction of the overflow brick, gravity can be effectively utilized to assist the clamping process, thereby improving the clamping effect.

[0018] Furthermore, the introduction of a transition connection block in the overflow brick clamping device can evenly transfer the lateral pressure to the supporting device. During the clamping process, the clamping force detected by the pressure sensor is effectively dispersed and transferred to the supporting device through the transition connection block, thereby avoiding local stress concentration, ensuring the uniform distribution of the clamping force, and improving the clamping effect; at the same time, the supporting device is generally wrapped with a heating wire, and the temperature is high during normal production. The transition connection block can play a role in heat insulation and cooling, effectively preventing the high temperature from being transmitted from the supporting device to the pressure sensor, thereby protecting the components from high temperature damage.

[0019] Furthermore, the compression transmission device is designed to be a first push rod, a spring, a second push rod and a screw connected in sequence, which can provide a long-term and stable lateral clamping force for the overflow brick. The elastic force of the spring is proportional to the compression amount, and the elastic force can be accurately controlled by adjusting the compression amount, so that the device can adapt to different production conditions and clamping requirements.

[0020] Furthermore, the supporting steel structure serves as a fixing and supporting base for the clamping device, thereby ensuring the stability and reliability of the entire clamping device.

[0021] Furthermore, the cooling air supply device continuously provides cold air to the cooling air inlet in the supporting steel structure through a hose, which can effectively reduce the temperature of the clamping device steel structure, ensuring that key components such as pressure sensors and compression transmission devices always operate within a suitable operating temperature range, thereby improving the working accuracy, stability and service life of key components.

[0022] Furthermore, through the resistive pressure sensor, the clamping force value can be detected and collected in real time and uploaded to the controller. When pressure acts on the sensor, the resistance element (strain gauge) will deform, causing the resistance value to change. This change is proportional to the pressure, thereby achieving accurate measurement of the clamping force.

[0023] The control method of the overflow brick clamping device provided by the present invention realizes the precise control of the clamping force. When the system detects that the creep amount of the overflow brick reaches the preset threshold, the controller can respond quickly and adjust the rotation amount of the motor, thereby further adjusting the compression degree of the compression transmission device to ensure that the lateral clamping force applied to the bottom of the overflow brick reaches the ideal state. This method integrates the real-time monitoring function of the creep measurement device and the pressure sensor. Through the intelligent analysis of the real-time data by the controller, the adjustment strategy can be made in real time, realizing the fully automatic adjustment of the clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 It is a structural schematic diagram of an overflow brick clamping device of the present invention; Figure 2 It is a schematic flow chart of a control method of an overflow brick clamping device of the present invention; Among them, 1 is the muffle furnace steel structure; 2 is the overflow brick; 3 is the supporting device; 4 is the transition connection block; 5 is the pressure sensor; 6 is the first push rod; 7 is the spring; 8 is the second push rod; 9 is the screw; 10 is the motor; 11 is the supporting steel structure; 12 is the cooling air inlet; 13 is the controller. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, which are intended to explain the present invention rather than to limit it.

[0032] An overflow brick clamping device comprises a supporting device 3 arranged at both ends of the bottom of an overflow brick 2, one end of the supporting device 3 is connected to the clamping device, the clamping device is connected to a controller 13, the overflow brick 2 is provided with an overflow brick creep measuring device, and the overflow brick creep measuring device is connected to the controller 13; The clamping device comprises a pressure sensor 5 , a compression transmission device and a motor 10 which are connected in sequence and are used to apply a transverse clamping force to the bottom of the overflow brick 2 .

[0033] The overflow brick clamping device provided by the present invention comprises a pressure sensor, a compression transmission device and a motor which are connected in sequence. The pressure sensor can detect the transverse clamping force applied to the bottom of the overflow brick in real time and accurately, so that the operator can know the value of the clamping force at any time, thereby ensuring the accuracy and controllability of the clamping force. The controller receives and processes the clamping force data from the pressure sensor, and converts the power provided by the motor into the clamping force for the overflow brick through the compression transmission device, and automatically adjusts the clamping force according to a preset threshold value. The device can effectively slow down the creep speed of the overflow brick caused by uneven force during long-term use of the overflow brick through real-time monitoring and accurate adjustment of the transverse clamping force, thereby reducing the creep amount, which is of great significance for improving the service life of the overflow brick, maintaining its stable performance and ensuring the normal operation of the entire system.

[0034] In a specific embodiment of the present invention, the overflow brick creep measurement device adopts the overflow brick deformation measurement device provided by the patent document "CN219284227U". Through the cooperation of a high-definition camera and a transparent ruler arranged at the measuring hole of the furnace body, the tip contour of the overflow brick in the furnace body is imaged to obtain the creep data of the overflow brick.

[0035] Specifically, one end of the supporting device 3 is the end of the supporting device 3 along the tilting direction of the overflow brick 2 .

[0036] Since overflow bricks are often affected by multiple factors such as gravity and temperature gradient during the production process, their creep direction may not be completely perpendicular to the bottom surface. By setting one end of the support device along the inclination direction of the overflow brick, gravity can be effectively utilized to assist the clamping process, thereby improving the clamping effect.

[0037] Specifically, it also includes a transition connection block 4, and one end of the support device 3 is connected to the pressure sensor 5 of the clamping device through the transition connection block 4.

[0038] Introducing a transition connection block in the overflow brick clamping device can evenly transfer the lateral pressure to the supporting device. During the clamping process, the clamping force detected by the pressure sensor is effectively dispersed and transferred to the supporting device through the transition connection block, thereby avoiding local stress concentration, ensuring the uniform distribution of the clamping force, and improving the clamping effect. At the same time, the supporting device is generally wrapped with a heating wire, and the temperature is high during normal production. The transition connection block can play a role in heat insulation and cooling, effectively preventing the high temperature from being transferred from the supporting device to the pressure sensor, thereby protecting the components from high temperature damage.

[0039] Specifically, the compression transmission device is a first push rod 6, a spring 7, a second push rod 8 and a screw rod 9 which are connected in sequence.

[0040] The compression transmission device is designed to be a first push rod, a spring, a second push rod and a screw connected in sequence, which can provide a long-term and stable lateral clamping force for the overflow brick. The elastic force of the spring is proportional to the compression amount. The elastic force can be accurately controlled by adjusting the compression amount, so that the device can adapt to different production conditions and clamping requirements.

[0041] Specifically, the first push rod 6 and the second push rod 8 are both made of alloy materials with high strength, high rigidity and good heat resistance. In a specific embodiment of the present invention, the first push rod 6 and the second push rod 8 are both made of 631 stainless steel.

[0042] Specifically, the spring 7 is made of an alloy material with high strength, high yield point and good fatigue resistance. In a specific embodiment of the present invention, the spring 7 is made of 631 stainless steel.

[0043] Specifically, it also includes a supporting steel structure 11 , and the clamping device is fixedly arranged on the supporting steel structure 11 .

[0044] The supporting steel structure serves as the fixing and supporting base of the clamping device, ensuring the stability and reliability of the entire clamping device.

[0045] Specifically, it also includes a cooling air supply device. A cooling air inlet 12 is provided on the supporting steel structure 11 , and a hose connected to the cooling air supply device is used to reduce the temperature inside the supporting steel structure 11 .

[0046] The cooling air supply device continuously supplies cold air to the cooling air inlet in the supporting steel structure through a hose, which can effectively reduce the temperature of the clamping device steel structure, ensuring that key components such as pressure sensors and compression transmission devices always operate within a suitable operating temperature range, thereby improving the working accuracy, stability and service life of key components.

[0047] Specifically, the pressure sensor 5 is a resistive pressure sensor with a measuring range of 0 to 5000 kg.

[0048] Through the resistive pressure sensor, the clamping force value can be detected, collected and uploaded to the controller in real time. When pressure acts on the sensor, the resistance element (strain gauge) will deform, causing the resistance value to change. This change is proportional to the pressure, thereby achieving accurate measurement of the clamping force.

[0049] Based on the same inventive concept, the present invention also provides a control method for an overflow brick clamping device, using the overflow brick clamping device as described above, comprising the following steps: initializing the lateral clamping force applied by the clamping device to the bottom of the overflow brick 2, and presetting a creep threshold of the overflow brick 2; The overflow brick creep measuring device monitors the creep amount of the overflow brick 2 in real time and uploads it to the controller 13, and the pressure sensor 5 monitors the lateral clamping force applied by the clamping device to the bottom of the overflow brick 2 in real time; When it is detected that the creep amount of the overflow brick 2 reaches a threshold value, the controller 13 adjusts the compression amount of the compression transmission device by controlling the rotation amount of the motor 10, thereby adjusting the transverse clamping force.

[0050] The control method of the overflow brick clamping device provided by the present invention realizes the precise control of the clamping force. When the system detects that the creep amount of the overflow brick reaches the preset threshold, the controller can respond quickly and adjust the rotation amount of the motor, thereby further adjusting the compression degree of the compression transmission device to ensure that the lateral clamping force applied to the bottom of the overflow brick reaches the ideal state. This method integrates the real-time monitoring function of the creep measurement device and the pressure sensor. Through the intelligent analysis of the real-time data by the controller, the adjustment strategy can be made in real time, realizing the fully automatic adjustment of the lateral clamping force.

[0051] Embodiment 1 See also Figure 1 , an overflow brick clamping device, including a transition connection block 4, a resistive pressure sensor 5, a first push rod 6, a spring 7, a second push rod 8, a screw 9, a motor 10, a support steel structure 11 and a cooling air inlet 12. After the overflow brick 2 and the support device 3 are installed and fixed to the muffle furnace steel structure 1, the other components of the overflow brick clamping device are installed in sequence. The spring 7 is squeezed by the threaded engagement of the screw 9 and the support steel structure 11, so that it has a certain amount of compression, thereby generating elastic force; this elastic force is transmitted to the resistive pressure sensor 5 through the first push rod 6, and the elastic force value is detected, collected, and uploaded to the controller 13; when the lateral clamping force of the overflow brick needs to be adjusted, the pressure value can be directly modified in the controller 13, and the controller 13 drives the screw 9 to rotate by controlling the rotation amount of the motor 10, and adjusts the compression amount of the spring 7, thereby realizing the adjustment of the lateral clamping force. After the overflow brick clamping device is installed in place, the pressure of the overflow brick clamping device needs to be initially set according to the process requirements. By adjusting the rotation amount of the tightening screw 9, the spring 7 is compressed to a certain extent until the pressure detected by the resistive pressure sensor 5 reaches the initial set value. After data analysis, the operational relationship between the number of rotations of the screw 9 and the lateral clamping force can be obtained, and then this operational relationship is written into the controller 13 in the form of a control rule, thereby realizing automatic adjustment of the lateral clamping force of the overflow brick.

[0052] During the stable development period of overflow brick creep, that is, when the creep amount is less than the threshold, the resistive pressure sensor 5 can be detected online and the transverse clamping force detection result can be output in real time. The transverse clamping force of the overflow brick can be monitored for a long time through the controller 13; when the temperature field inside the muffle furnace or the production line operation time and other conditions change and reach the overflow brick creep amount threshold, the controller 13 can realize online and automatic adjustment of the transverse clamping force of the overflow brick. The use of this overflow brick clamping device can realize online detection and output of the transverse clamping force, monitor the transverse clamping force, which is beneficial to the long-term refined control of the creep amount of the overflow brick 2; on the other hand, due to the high stability of the spring 7 itself, this clamping device can provide the overflow brick with long-term stable and continuous transverse clamping force to suppress creep.

[0053] Embodiment 2 See also Figure 2 A control method for an overflow brick clamping device. After the overflow brick clamping device is installed in place, the pressure of the overflow brick clamping device needs to be initially set according to the process requirements. The specific operation is as follows: First, adjust the tight screw 9 to make the spring 7 completely relaxed, that is, the compression amount is 0. At this time, the resistive pressure sensor 5 is also in a stress-free state, and the pressure value of the controller 13 is 0. Secondly, manually adjust the screw 9 (number of turns n), pressurize the spring 7, and the compression amount changes accordingly (compression amount change x). It is easy to see that the compression amount is directly proportional to the number of turns, that is: x=k'˙n(1-1) Where k' is the proportionality coefficient.

[0054] At this time, the resistive pressure sensor 5 is in a stressed state, and the pressure value of the controller 13 gradually increases until it reaches the initial set pressure value; Finally, assuming that the initial set pressure value is F and the compression amount of spring 7 is x, it is easy to know from Hooke's law: F = k˙x = k˙k'˙n (1-2) Where k is the stiffness coefficient of the compression spring; k' is the proportionality coefficient.

[0055] The above relationship (1-2) is written into the controller 13 in the form of a control rule to realize automatic control of the lateral clamping force of the overflow brick.

[0056] When the temperature field of the muffle furnace, the operation time of the production line and other conditions change and reach the overflow brick creep threshold, the controller 13 adjusts the lateral clamping force of the overflow brick. The controller 13 controls the rotation amount of the motor 10 according to the relationship between the number of rotations n of the screw 9 and the pressure value F (1-2), thereby driving the screw 9 to rotate and adjusting the compression amount of the spring 7, thereby achieving online adjustment of the elastic force (i.e., the lateral clamping force).

[0057] Finally, it should be noted that the above-listed embodiments exist only as one or more specific forms of expression of the technical solution of the present invention. Their purpose is to clearly explain the concept, principle and application of the present invention through specific examples, and it is by no means intended to limit the protection scope of the present invention to these specific embodiments. In fact, the real value of the present invention lies in the technical ideas and innovations it proposes, rather than its form of expression or means of implementation.

[0058] For ordinary technicians in the relevant technical field, after in-depth reading and understanding of the technical solution of the present invention, they are fully capable of making various forms of changes, modifications or equivalent substitutions to the specific implementation methods of the invention based on their own professional knowledge and skills. These changes may include but are not limited to: adjusting the value range of technical parameters, optimizing algorithm processes to improve efficiency, replacing some technical components to achieve better compatibility or reduce costs, etc. As long as these changed technical solutions still substantially maintain the technical features claimed for protection by the original invention, that is, they can still achieve the core functions and effects of the present invention, then these changes should be deemed to fall within the scope of protection of the pending claims of the present invention.

[0059] In addition, with the continuous progress and development of technology, new technical means and methods continue to emerge, which also provides broad space for further improvement and perfection of the present invention. Therefore, the protection scope of the present invention should also include those reasonably foreseeable improvements and extensions based on the existing technology. As long as these improvements and extensions do not deviate from the basic principles and core concepts of the present invention, they should be regarded as equivalents of the present invention and are also protected by patent rights.

Claims

1. An overflow brick clamping device, characterized in that: The overflow brick (2) comprises support devices (3) arranged at both ends of the bottom of the overflow brick (2), one end of the support device (3) is connected to a clamping device, the clamping device is connected to a controller (13), the overflow brick (2) is provided with an overflow brick creep measuring device, and the overflow brick creep measuring device is connected to the controller (13); The clamping device comprises a pressure sensor (5), a compression transmission device and a motor (10) which are connected in sequence and is used to apply a transverse clamping force to the bottom of the overflow brick (2).

2. The overflow brick clamping device according to claim 1, characterized in that: One end of the supporting device (3) is the end of the supporting device (3) along the inclination direction of the overflow brick (2).

3. The overflow brick clamping device according to claim 1, characterized in that: It also includes a transition connection block (4), and one end of the support device (3) is connected to a pressure sensor (5) of the clamping device via the transition connection block (4).

4. The overflow brick clamping device according to claim 1, characterized in that: The compression transmission device comprises a first push rod (6), a spring (7), a second push rod (8) and a screw rod (9) which are connected in sequence.

5. The overflow brick clamping device according to claim 4, characterized in that: The first push rod (6) and the second push rod (8) are both made of alloy material with high strength, high rigidity and good heat resistance.

6. The overflow brick clamping device according to claim 4, characterized in that: The spring (7) is made of an alloy material having high strength, high yield point and good fatigue resistance.

7. The overflow brick clamping device according to claim 1, characterized in that: It also includes a supporting steel structure (11), on which the clamping device is fixedly arranged.

8. The overflow brick clamping device according to claim 7, characterized in that: It also comprises a cooling air supply device, a cooling air inlet (12) is provided on the supporting steel structure (11), and a hose connected to the cooling air supply device is used to reduce the temperature inside the supporting steel structure (11).

9. The overflow brick clamping device according to claim 1, characterized in that: The pressure sensor (5) is a resistive pressure sensor with a measuring range of 0 to 5000 kg.

10. A control method for an overflow brick clamping device, characterized in that: The overflow brick clamping device according to any one of claims 1 to 9 comprises the following steps: initializing the lateral clamping force applied by the clamping device to the bottom of the overflow brick (2) and presetting a threshold value of the creep amount of the overflow brick (2); The overflow brick creep measuring device monitors the creep amount of the overflow brick (2) in real time and uploads it to the controller (13), and the pressure sensor (5) monitors the lateral clamping force applied by the clamping device to the bottom of the overflow brick (2) in real time; When it is detected that the creep amount of the overflow brick (2) reaches a threshold value, the controller (13) adjusts the compression amount of the compression transmission device by controlling the rotation amount of the motor (10), thereby adjusting the transverse clamping force.

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