A damping block extrusion device for vibration reduction and an on-line detection method for extrusion thickness

Abstract

The present invention discloses a vibration damping block extrusion device and an online detection method for extrusion thickness. The vibration damping block extrusion device includes an extrusion device and a detection device. The extrusion device includes a mold. The mold is provided with an extrusion end and an adjustment end. The extrusion end is used to extrude the damping block, and the adjustment end is used to adjust the extrusion thickness. The detection device includes a line laser emitting device, a first receiving device, and a second receiving device. The line laser emitting device emits a light beam to the damping block of preset thickness and the extruded damping block respectively. The first receiving device receives the light beam reflected by the extruded damping block, and the second receiving device receives the light beam reflected by the damping block of preset thickness. The thickness of the standard vibration damping block is determined by the cooperation of the line laser emitting device and the second receiving device. Based on this as a reference, the line laser emitting device and the first receiving device cooperate to detect the thickness of the damping block in the production line in real time. While detecting, the extrusion device continues to produce in real time and the adjustment end can be adjusted in time, thereby reducing the waste of raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of rubber sheet extrusion production, in particular to a vibration damping block extrusion device and an online detection method for extrusion thickness. Background Art

[0002] The thickness of vibration damping blocks is a crucial parameter for product quality. Vibration damping blocks are manufactured through extrusion molding, and product quality is affected by numerous factors, such as temperature, pressure, and mold parameters. Immediately after exiting the extruder, the material has not yet cooled and hardened, and its surface is very sticky, making it difficult to measure the thickness using contact measurement. Typically, the thickness of the product can only be measured at the end of the production line, after the material has hardened. If there are any issues with the thickness of the finished product, the production line parameters are adjusted at this point. Failure to measure and adjust the material in a timely manner can lead to significant waste of raw materials. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the existing production method. To this end, the present invention provides a vibration damping block extrusion device that can detect and adjust in real time to reduce the waste of raw materials.

[0004] The invention also provides an online detection method for the extrusion thickness of a vibration damping block.

[0005] The vibration damping block extrusion device according to the first embodiment of the present invention includes:

[0006] An extrusion device comprises a die, wherein the die is provided with an extrusion end and an adjustment end, wherein the extrusion end is used to extrude the damping block, and the adjustment end is used to adjust the thickness of the damping block extruded by the extrusion end; and

[0007] A detection device comprising a line laser emitting device, at least one first receiving device and a second receiving device;

[0008] The line laser emitting device emits a light beam toward the damping block of preset thickness and the damping blocks extruded from each of the extrusion ends; the first receiving device is used to receive the light beam reflected from the surface of the extruded damping block; and the second receiving device is used to receive the light beam reflected from the surface of the damping block of preset thickness.

[0009] The vibration-damping damping block extrusion device according to the first aspect of the present invention has at least the following beneficial effects: the thickness of the standard vibration-damping damping block is determined by cooperating with the line laser emitting device and the second receiving device, and based on this, the thickness of the damping block in the production line is detected in real time using the line laser emitting device and the first receiving device. While the detection is taking place, the extrusion device continues to produce in real time, and the adjustment end can be adjusted in time, thereby realizing real-time detection, timely adjustment, and reducing the waste of raw materials.

[0010] According to the vibration damping block extrusion device described in the embodiment of the first aspect of the present invention, the vibration damping block extrusion device also includes a control system and an adjustment device, the adjustment device is used to adjust the adjustment end, and based on the information of the first receiving device, the control system drives the adjustment device to adjust the adjustment end so that the thickness of the damping block extruded from the extrusion end is adjusted, the line laser emitting device and the first receiving device continue to work, and the control system is used to obtain information from the first receiving device and the second receiving device to form a closed-loop control system.

[0011] According to the vibration-damping damping block extrusion device described in the embodiment of the first aspect of the present invention, the extrusion end is provided with multiple extrusion ports, each of which determines the width of the damping block, and the adjustment device can act on each of the adjustment ends respectively to adjust the thickness of the extruded damping block.

[0012] According to the vibration-damping damping block extrusion device described in the embodiment of the first aspect of the present invention, the adjustment device includes a driving mechanism and an adjustment mechanism, the adjustment mechanism is used to adjust the adjustment end, the adjustment mechanism is connected to the driving mechanism, and the driving mechanism is used to drive the adjustment mechanism so that the adjustment mechanism can act on each of the adjustment ends.

[0013] According to the vibration damping block extrusion device described in the embodiment of the first aspect of the present invention, the driving mechanism includes a vertical moving component and a horizontal moving component, the adjustment ends are arranged at intervals in the horizontal direction, the vertical moving component is arranged on the horizontal moving component, and the adjustment mechanism is arranged at the lower end of the vertical moving component;

[0014] The horizontal moving assembly is used to drive the adjustment mechanism to move in the horizontal direction so that the adjustment mechanism can be positioned in the vertical direction of each adjustment end;

[0015] The vertical moving assembly is used to drive the adjusting mechanism to move in a vertical direction, so that the adjusting mechanism has a first working condition of acting on the adjusting end and a second working condition of being separated from the adjusting end.

[0016] According to the vibration-damping damping block extrusion device described in the embodiment of the first aspect of the present invention, the adjustment mechanism includes a driving component, a claw and an in-place detection component, the claw is used to act on the adjustment end, the driving component is used to drive the claw to adjust the adjustment end, the in-place detection component is used to detect the connection status of the claw and the adjustment end, the control system receives information from the in-place detection component, and the control system is used to control the driving component.

[0017] According to the vibration damping block extrusion device described in the embodiment of the first aspect of the present invention, the claw is provided with a slot capable of nesting the adjustment end, the driving assembly includes a torque motor and a transmission assembly, the torque motor drives the claw to rotate through the transmission assembly, and the in-position detection assembly includes a proximity switch and an elastic assembly, and the elastic assembly acts on the claw;

[0018] The claw has a first state in which the clamping slot acts on the adjustment end and a second state in which the clamping slot and the adjustment end are misaligned;

[0019] When the claw is in the first state, the torque motor drives the claw to rotate to adjust the adjustment end;

[0020] When the claw is in the second state, the elastic component is compressed based on the misalignment between the slot and the adjustment end, and the proximity switch moves toward the top of the claw. When it reaches the preset position, the proximity switch is triggered. The control system is used to receive information from the proximity switch. The control system is used to drive the torque motor, and the torque motor is used to slightly rotate the claw to eliminate the misalignment. The claw switches to the first state based on the action of the elastic component.

[0021] According to the second embodiment of the present invention, the online detection method for the extrusion thickness of the vibration damping block includes an extrusion device, a linear laser emission device, and multiple receiving devices, wherein the extrusion device includes multiple extrusion ports and corresponding adjustment nuts, and the adjustment nuts are used to adjust the opening height of the extrusion ports, thereby changing the thickness of the extruded damping block;

[0022] According to the second aspect of the present invention, the online detection method for the extrusion thickness of the vibration damping block described in the embodiment includes the following steps:

[0023] A damping block of standard thickness is prepared as a reference, one of the receiving devices is set corresponding to the damping block of standard thickness, a laser line is emitted by a line laser emitting device to the damping block of standard thickness, and then the laser line reflected by the damping block of standard thickness is received by the receiving device;

[0024] The extrusion device is started, and each of the extrusion ports extrude a damping block respectively;

[0025] The remaining receiving devices are respectively arranged corresponding to the extruded damping blocks, and the laser line is emitted by the line laser emitting device to the extruded damping blocks, and then the remaining receiving devices respectively receive the laser line reflected by the extruded damping blocks;

[0026] The laser line images collected by each of the receiving devices include laser line segments on the surface of the damping block of standard thickness and laser line segments of the damping blocks flowing during extrusion forming on the production line. The difference between the extruded damping blocks and the damping blocks of standard thickness is confirmed based on the position of each laser line segment.

[0027] According to the second aspect of the present invention, the online detection method for the extrusion thickness of the vibration damping damping block described in the embodiment further includes using an adjustment device. When the thickness of the extruded damping block needs to be changed, the adjustment nut is adjusted by the adjustment device. The method of controlling the adjustment device by the system according to the two laser segments includes:

[0028] Display each laser line segment in the same coordinate system, and the system automatically confirms the alignment of each laser line segment;

[0029] When the laser lines on the extruded damping blocks are aligned with the laser lines on the damping blocks of standard thickness, a straight line is displayed on the screen, indicating that the thickness of the extruded damping blocks is consistent with that of the damping blocks of standard thickness, and there is no need to start the adjustment device;

[0030] When the laser lines on the extruded damping blocks are not aligned with the laser lines on the damping blocks of standard thickness, at least two straight lines are displayed on the screen. Taking the laser lines on the damping blocks of standard thickness as a reference, the allowable thickness error range is confirmed and the upper limit setting value and the lower limit setting value are set respectively. When the thickness displayed by the laser lines on the extruded damping blocks is greater than the upper limit setting value, the control system starts the adjustment device after calculation, and the adjustment device negatively adjusts the adjustment nut to reduce the opening height of the extrusion port. When the thickness displayed by the laser lines on the extruded damping blocks is less than the lower limit setting value, the adjustment device positively adjusts the adjustment nut to increase the opening height of the extrusion port.

[0031] According to the second aspect of the present invention, the online detection method for the extrusion thickness of the vibration damping block is described in an embodiment, wherein the adjustment device includes a vertical moving component, a horizontal moving component and an adjustment mechanism, and the adjustment mechanism includes a torque motor, a transmission component, a claw, a proximity switch and an elastic component;

[0032] The method for adjusting the adjusting nut by the adjusting device includes:

[0033] When the adjusting device receives an instruction to adjust a certain adjusting nut, the adjusting mechanism is driven by the horizontal moving assembly to move above the adjusting nut to be adjusted, and the adjusting mechanism is driven by the vertical moving assembly to move downward until it contacts the adjusting nut. When contacting, there are two situations in which the positioning of the slot and the adjusting nut is aligned or not aligned.

[0034] When the orientation of the clamping slot is aligned with the orientation of the adjusting nut, the torque motor drives the clamping claw to rotate a preset angle through the transmission assembly to adjust the adjusting nut;

[0035] When the orientation of the slot does not match the orientation of the adjusting nut, the vertical moving component drives the claw to move downward, causing the slot to abut against the top of the adjusting nut, the elastic component is compressed, and the proximity switch moves toward the top of the claw. When the proximity switch is triggered, a preset instruction is issued, causing the torque motor to drive the claw to fine-tune its rotation until the orientation of the slot matches the orientation of the adjusting nut. Based on the resetting action of the elastic component, the claw can act on the adjusting nut and release the proximity switch, causing the torque motor to drive the claw to rotate a preset angle to adjust the adjusting nut.

[0036] It is not difficult to understand that the online detection method for the extrusion thickness of the vibration damping block in the embodiment of the second aspect of the present invention has the technical effect of the vibration damping block extrusion device in the embodiment of the first aspect mentioned above, and therefore it will not be repeated.

[0037] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0039] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0040] Figure 2 Schematic diagram of the structure of the driving mechanism in an embodiment of the present invention;

[0041] Figure 3 This is a schematic structural diagram of the adjustment mechanism in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of detection in an embodiment of the present invention;

[0043] Figure 5 This is a front view during detection in an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the display when the laser lines are aligned according to an embodiment of the present invention;

[0045] Figure 7 FIG. 4 is a schematic diagram showing an embodiment of the present invention when laser lines are not aligned.

[0046] Reference numerals:

[0047] Vibration damping block extrusion device 100, injection cylinder 110, mold 120, adjustment end 130, extrusion end 140;

[0048] Driving mechanism 200, horizontal moving assembly 210, screw and nut mechanism 211, slide rail 212, vertical moving assembly 220;

[0049] Adjustment mechanism 300, drive assembly 310, transmission assembly 320, claw 330, keyway 331, proximity switch 340, elastic assembly 350;

[0050] Line laser emitting device 410 , first receiving device 420 , thickness error range 430 . DETAILED DESCRIPTION

[0051] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0052] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, 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. Therefore, they cannot be understood as limitations on the present invention.

[0053] In the description of the present invention, "several" means one or more, "many" means at least two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0054] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0055] Rubber vibration damping blocks are essential vibration damping components for air conditioners, automobiles, audio equipment, and other products. Winding vibration damping blocks around pipes prone to vibration is the most common method to effectively reduce or eliminate equipment vibration. Vibration damping blocks are made of rubber and are produced by hot molding and extrusion.

[0056] Reference Figures 1 to 7The vibration damping block extrusion device 100 of the first embodiment of the present invention is used to detect and adjust the thickness of the vibration damping block during online extrusion, solving the problem that the extrusion thickness of the traditional production line cannot be monitored in real time. The vibration damping block extrusion device 100 includes an extrusion device and a detection device.

[0057] The extrusion device includes a mold 120, one end of which is provided with an injection cylinder 110, and the other end of the mold 120 is used to extrude the product. The mold 120 is provided with an extrusion end 140 and an adjustment end 130. The extrusion end 140 is used to extrude the damping block, and the adjustment end 130 is used to adjust the thickness of the damping block extruded by the extrusion end 140. It can be understood that the damping block produced by extrusion through the extrusion flow channel, extrusion port or die port in the mold 120 is gradually extruded and formed by the extrusion end 140. The detection device includes a line laser emitting device 410, at least one first receiving device 420, and a second receiving device, wherein one or more extrusion ports are corresponding to an adjustment end 130 and a first receiving device 420 and form a group. The line laser emitting device 410 simultaneously emits a light beam toward the damping block of a preset thickness and the damping block extruded by the extrusion end 140. The first receiving device 420 is used to receive the light beam reflected by the extruded damping block, and the second receiving device is used to receive the light beam reflected by the surface of the damping block of the preset thickness. The thickness of the standard vibration damping block is determined by the cooperation of the line laser emitting device 410 and the second receiving device. Based on this, the thickness of the damping block in the production line is detected in real time by the cooperation of the line laser emitting device 410 and the first receiving device 420. While the detection is being carried out, the extrusion device continues to produce in real time and the adjustment end 130 can be adjusted in time, thereby achieving real-time detection and timely adjustment, thereby reducing the waste of raw materials.

[0058] It is understandable that one or more extrusion ports are correspondingly provided with an adjustment end 130 and a first receiving device 420 to form a group and detect the thickness of an extruded damping block. It should be noted that the damping block of preset thickness is a damping block of standard thickness. The standard is set so as to determine whether the thickness of the extruded damping block meets the standard by comparison. Obviously, in actual production, since multiple damping blocks are produced at the same time, the conventional ultrasonic thickness detection method and the X-ray thickness detection method are not convenient for multi-channel detection. Only by setting the corresponding line laser emitting device 410 and the first receiving device 420, reflecting the light beam through the damping block, and comparing the two can a better detection effect be achieved at a low cost. It is understandable that, specifically referring to Figure 4 and Figure 5The line laser emitting device 410 emits light at a preset emission angle, which will be reflected at a preset reflection angle after acting on the damping block. The setting positions of the line laser emitting device 410 and the first receiving device 420 can be obtained through corresponding angle calculations. Preferably, the line laser emitting device 410 has a better effect of emitting along the direction of the production line. In other embodiments, multiple second receiving devices can be set accordingly to achieve the effect of producing damping blocks of multiple models and specifications at the same time. A damping block of standard thickness can also correspond to an extruded damping block, and the detection accuracy can be improved by corresponding comparison. The first receiving device 420 and the second receiving device are cameras. The camera, laser and laser line hit on the rubber strip or damping block are distributed in a triangle, with the camera and laser on the top and the laser line on the bottom.

[0059] In some embodiments of the present invention, the vibration damping block extrusion device 100 further includes a control system and an adjustment device. The adjustment device is configured to adjust the adjustment end 130. Based on information from the first receiving device 420, a comparison is performed to determine thickness errors. The control system drives the adjustment device to rotate the adjustment end 130 to adjust the thickness of the damping block extruded from the extrusion end 140. The line laser emitting device 410 and the first receiving device 420 operate continuously, and the control system is configured to obtain information from the first receiving device 420 and the second receiving device, thereby forming a closed-loop control system. It is understood that the control system is configured to connect the extrusion device, the detection device, and the adjustment device to obtain real-time operating status of the extrusion device, the detection device, and the adjustment device and to implement corresponding control strategies or control programs. In some embodiments, the control system can be configured as an automated control system, controlling the extrusion device, the detection device, and the adjustment device through preset programs and logic, thereby improving the degree of automation. In other embodiments, the control system can be configured with an operation panel, allowing technicians to control the extrusion device, the detection device, and the adjustment device through the control panel. This can also achieve online detection and adjustment during the production process, thereby reducing raw material waste. In some embodiments, the controller is configured with this control system.

[0060] In some embodiments of the present invention, specific reference is made to Figure 1 The extrusion end 140 is provided with multiple extrusion ports, each of which determines the width of the damping block. The mold 120 simultaneously generates multiple rubber strips as damping blocks, which can improve the efficiency of the production line. The adjustment device can act on each adjustment end 130 respectively to adjust the thickness of the damping block extruded from each extrusion port, thereby realizing the effect of simultaneous online detection and adjustment of multiple damping blocks in the production process.

[0061] In some embodiments of the present invention, specific reference is made to Figure 2 and Figure 3The adjustment device includes a drive mechanism 200 and an adjustment mechanism 300. The adjustment mechanism 300 is used to adjust the adjustment end 130. The adjustment mechanism 300 is connected to the drive mechanism 200, and the drive mechanism 200 is used to drive the adjustment mechanism 300 so that the adjustment mechanism 300 can act on each adjustment end 130. It can be understood that the drive mechanism 200 drives the adjustment mechanism 300 to move so that the adjustment mechanism 300 can move to the position of the adjustment end 130 that needs to be adjusted according to the instructions of the control system. The drive mechanism 200 then drives the adjustment mechanism 300 to be fixed relative to the adjustment end 130, so that the adjustment end 130 can be adjusted by the adjustment mechanism 300, thereby changing the thickness of the damping block extruded by the extrusion end 140. In other embodiments, each adjustment end 130 is arranged at a different position of the extrusion device. In this case, the movement path of the adjustment mechanism 300 needs to be designed to ensure that the adjustment mechanism 300 can pass through the position of each adjustment end 130 to achieve adjustment. In this embodiment, the drive mechanism 200 can be configured as a multi-degree-of-freedom robotic arm, which drives the adjustment mechanism 300 to move. In other embodiments, the adjustment ends 130 are arranged in a preset manner, and the driving mechanism 200 can cooperate with conventional transmission components 320 such as guide rails, screw nuts and other mechanisms, and through targeted design of the movement path, the driving mechanism 300 can move to the position of each adjustment end 130.

[0062] In a preferred embodiment, specific reference is made to Figure 2 , each adjustment end 130 is arranged at intervals in the horizontal direction, the driving mechanism 200 includes a vertical moving component 220 and a horizontal moving component 210, the vertical moving component 220 is arranged on the horizontal moving component 210, and the adjustment mechanism 300 is arranged at the lower end of the vertical moving component 220, the horizontal moving component 210 is used to drive the adjustment mechanism 300 to move in the horizontal direction, so that the adjustment mechanism 300 can be located in the vertical direction of each adjustment end 130, the vertical moving component 220 is used to drive the adjustment mechanism 300 to move in the vertical direction, so that the adjustment mechanism 300 has a first working condition of acting on the adjustment end 130 and a second working condition of being separated from the adjustment end 130. Specifically, the horizontal moving component 210 drives the adjustment mechanism 300 to move above the adjustment end 130 to be adjusted, and the vertical moving component 220 drives the adjustment mechanism 300 to be fixed relatively to the adjustment end 130. The adjustment end 130 can be adjusted by the adjustment mechanism 300, and then reset by the vertical moving component 220 after adjustment. The adjustment mechanism 300 makes the adjustment mechanism 300 relatively separated from the adjustment end 130, and then resets the horizontal moving component 210 to wait for the next adjustment instruction.

[0063] It can be understood that the horizontal moving component 210 includes a screw-nut mechanism 211 and a motor, and the screw-nut mechanism 211 is driven by the motor. In order to ensure the quality of sliding, the horizontal moving component 210 also includes a slide rail 212, and a slider is provided on the slide rail 212. The vertical moving component 220 is arranged on the moving platform of the horizontal moving component, and is driven by the vertically installed screw-nut mechanism and motor, and is assisted in guiding by the vertical slide rail to achieve precise adjustment. The setting of the vertical moving component 220 can refer to the horizontal moving component 210, and no cumbersome explanation is given here.

[0064] In other embodiments, the adjustment mechanism 300 may be configured according to the specific structure of the adjustment end 130 , provided that the grasping and adjustment actions can be achieved.

[0065] In a preferred embodiment, in an embodiment where the adjustment end 130 is an adjustment nut, refer to Figure 3 The adjustment mechanism 300 includes a drive assembly 310, a clamping claw 330, and a position detection assembly. The clamping claw 330 is used to act on the adjustment end 130. The drive assembly 310 is used to drive the clamping claw 330 to adjust the adjustment end 130. The position detection assembly is used to detect the connection between the clamping claw 330 and the adjustment end 130. The control system receives information from the position detection assembly and controls the drive assembly 310. It can be understood that the specific structure of the clamping claw 330 is set accordingly to the specific structure of the adjustment end 130 to ensure that the adjustment end 130 is reliably fixed and adjustment is achieved. The drive assembly 310 adjusts the driving mode according to the specific structure of the adjustment end 130 to ensure that the adjustment end 130 can be adjusted in both forward and reverse directions. The position detection assembly is used to detect the connection between the clamping claw 330 and the adjustment end 130. When the control system receives a signal from the position detection assembly indicating a normal connection, the control system controls the drive assembly 310 to perform the adjustment action.

[0066] Preferably, in an embodiment where the adjustment end 130 is an adjustment nut, the claw 330 is provided with a keyway 331 that enables the claw to move up and down along the drive shaft but not to rotate relative to it. The claw 330 can adapt to the adjustment nut. The drive assembly 310 includes a torque motor and a transmission assembly 320. The torque motor drives the claw 330 to rotate through the transmission assembly 320. The transmission assembly 320 is preferably a gear box. The torque motor and the gear box cooperate to provide a torque for twisting the adjustment nut. The in-position detection assembly includes a proximity switch 340 and an elastic assembly 350. The elastic assembly 350 acts on the claw 330. The claw 330 has a first state acting on the adjustment end 130 and a second state misaligned with the adjustment end 130. When the claw 330 is in the first state, the torque motor drives the claw 330 to rotate to adjust the adjustment end 130. When the claw 330 is in the second state, the elastic component 350 is compressed based on the misalignment between the claw 330 and the adjustment end 130, and the proximity switch 340 moves toward the top of the claw. When it moves to the preset position, the proximity switch 340 is triggered. The control system is used to receive information from the proximity switch 340. The control system is used to drive the torque motor, and the torque motor is used to slightly rotate the claw 330 to eliminate the misalignment. The claw 330 switches to the first state based on the action of the elastic component 350. It can be understood that under the action of the key slot 331, the claw 330 can move in the vertical direction, so that when the claw 330 is misaligned with the adjusting nut, the vertical moving component 220 can move vertically normally, and the claw 330 will not be stuck after abutting with the adjusting nut, and the elastic component 350 can buffer the collision between the claw 330 and the adjusting nut. When the torque motor slightly rotates the claw 330, the claw 330 can rotate slightly. After the misalignment is eliminated, the claw 330 can normally cover the adjusting nut under the resetting action of the elastic component 350 and switch to the first state. The change of the state switch will be captured by the proximity switch 340 and uploaded to the control system. The torque motor can be controlled by the control system and the adjusting nut can be adjusted normally.

[0067] Reference Figures 1 to 7 The second embodiment of the present invention provides an online detection method for the extrusion thickness of a vibration damping block. This method can use the vibration damping block extrusion device 100 of the first embodiment of the present invention to extrude rubber or plastic sheets, and uses an extrusion device, a line laser emitting device 410, and multiple receiving devices, wherein the extrusion device includes multiple extrusion ports and corresponding adjustment nuts, and the adjustment nuts are used to adjust the opening height of the extrusion ports, thereby changing the thickness of the extruded damping block.

[0068] The online detection method for the extrusion thickness of the vibration damping block includes the following steps:

[0069] A damping block of standard thickness is prepared as a reference. A receiving device, a line laser emitting device 410, and a damping block of standard thickness are correspondingly arranged. The line laser emitting device 410 emits a laser line to the damping block of standard thickness, and then the receiving device receives the laser line reflected by the damping block of standard thickness.

[0070] Start the extrusion device, and extrude the damping block from each extrusion port;

[0071] The remaining receiving devices are respectively provided corresponding to the extruded damping blocks. The laser line emitting device 410 emits a laser line to the extruded damping blocks, and then the remaining receiving devices respectively receive the laser line reflected by the extruded damping blocks.

[0072] The laser line images collected by the receiving device include laser line segments on the surface of the damping block of standard thickness and laser line segments of the damping blocks flowing during extrusion forming on the production line. The difference between the extruded damping blocks and the damping blocks of standard thickness is confirmed based on the position of each laser line segment.

[0073] In some embodiments of the present invention, specific reference is made to Figures 4 to 7 The online detection method for the extrusion thickness of the vibration damping block also includes an adjustment device. When the thickness of the extruded damping block needs to be changed, the adjustment nut is adjusted by the adjustment device. The method of controlling the adjustment device through the system according to the two laser segments includes:

[0074] Display each laser line segment in the same coordinate system, and the system automatically confirms the alignment of each laser line segment;

[0075] When aligning the laser lines on the extruded damping blocks with the laser lines on the damping blocks of standard thickness, refer to Figure 6 , a straight line is displayed on the screen, indicating that the thickness of the extruded damping blocks is consistent with the thickness of the standard thickness damping blocks, and there is no need to start the adjustment device;

[0076] If the laser lines on the extruded damping blocks are not aligned with the laser lines on the damping blocks of standard thickness, please refer to Figure 7 , then at least two straight lines are displayed on the screen. Taking the laser line on the damping block of standard thickness as the reference, confirm the allowable thickness error range 430 and set the upper and lower limit settings respectively. When the thickness displayed by the laser line on each damping block after extrusion is greater than the upper limit setting value, the adjustment device adjusts the adjustment nut in a negative direction to reduce the opening height of the extrusion port. When the thickness displayed by the laser line on each damping block after extrusion is less than the lower limit setting value, the adjustment device adjusts the adjustment nut in a positive direction to increase the opening height of the extrusion port.

[0077] The specific embodiment of detecting the extrusion thickness of the vibration damping block by receiving the line laser line by the camera is as follows: a line laser is fixed above the extrusion production line, and the laser shoots a laser line toward the rubber strip, and the laser line spans each rubber strip that is continuously extruded. The camera shoots this laser line. The camera, the laser and the laser line shot on the rubber strip are distributed in a triangle, with the camera and the laser on the top and the laser line on the bottom. The rubber strip is continuously extruded and flows from the production line, and the vibration damping block of standard thickness is fixed statically and does not move with the extruded rubber strip. The laser line image captured by the camera includes the laser line segment on the surface of the vibration damping block of standard thickness and the laser line segment on the surface of the rubber strip that is extruded and flowing on the production line. For details, refer to Figure 6 If the thickness of the rubber strip produced is consistent with the thickness of the standard vibration damping block, the laser line on the rubber strip and the laser line on the standard thickness vibration damping block can be aligned, and the laser line captured by the camera is a straight dotted line; refer to Figure 7 If the thickness of the rubber strip is different from that of the standard vibration damping block, the laser line on the rubber strip will not align with the laser line on the standard thickness vibration damping block. The degree of misalignment can reflect the thickness error of the produced rubber strip. The thickness error value of the rubber strip can be determined in advance through calibration. The specific process is: the computer image recognition system scans in an orderly and regular manner, identifying the thickness error of each rubber strip one by one, and determining whether the thickness of the rubber strip is greater than or less than the thickness of the standard vibration damping block. The image recognition system outputs a positive or negative adjustment signal.

[0078] Specific reference Figure 1 , there is a row of adjusting nuts on the mold 120, and the adjusting nuts can only rotate and cannot move up and down. By rotating the adjusting nuts, the screw that cooperates with the adjusting nuts moves, so that the opening height of the extrusion channel in the mold 120 can be adjusted through the adjusting nuts, thereby affecting the thickness of the extruded rubber strip. Since the width of each batch of products may be different, the width of the product is determined by the die opening, and the die opening can be replaced according to the specifications of the products produced. However, the adjusting nuts are fixed, so the adjustment amount of the adjusting nuts corresponding to the thickness adjustment of a specific rubber strip must be adjusted according to a certain control strategy. When it is detected that the thickness of the rubber strip has changed, the corresponding control strategy is called and the corresponding adjusting nuts are adjusted to control the thickness of the produced rubber strip to meet the product quality requirements.

[0079] Preferably, refer to Figure 4 and Figure 5 The adjusting device includes a vertical moving component 220, a horizontal moving component 210 and an adjusting mechanism 300. The adjusting mechanism 300 includes a torque motor, a transmission component 320, a claw 330, a proximity switch 340 and an elastic component 350.

[0080] Methods for adjusting the adjusting nut by means of the adjusting device include:

[0081] When the adjustment device receives an instruction to adjust a certain adjustment nut, the horizontal movement assembly 210 drives the adjustment mechanism 300 to move above the adjustment nut to be adjusted, and the vertical movement assembly 220 drives the adjustment mechanism 300 downward to contact the adjustment nut. When contacting, the claw 330 and the adjustment nut may be in the same position or out of position.

[0082] When the orientation of the claw 330 is aligned with the orientation of the adjusting nut, the torque motor drives the claw 330 to rotate a preset angle through the transmission assembly 320 to adjust the adjusting nut;

[0083] When the position of the claw 330 does not match the position of the adjusting nut, the vertical moving component 220 drives the claw 330 to move downward, causing the claw 330 to abut against the top of the adjusting nut, the elastic component 350 is compressed, and the proximity switch 340 moves toward the top of the claw, triggering the proximity switch 340 to issue a preset instruction, causing the torque motor to drive the claw 330 to fine-tune the rotation until the position of the claw 330 matches the position of the adjusting nut. Based on the resetting effect of the elastic component 350, the claw 330 can act on the adjusting nut and release the proximity switch 340. The proximity switch 340 causes the torque motor to drive the claw 330 to rotate a preset angle to adjust the adjusting nut.

[0084] A specific embodiment of the adjustment device is as follows: the adjustment device is mounted on the adjustment nut of the extruder via a bracket. The horizontal movement assembly 210 drives the adjustment mechanism 300 to sequentially move above each adjustment nut. The vertical movement assembly 220 then drives the adjustment mechanism 300 downward a fixed distance. The clamping claw 330 engages and clamps the adjustment nut. The torque motor rotates forward or reverse a certain angle according to the control system's instructions to adjust each adjustment nut. After adjusting one adjustment nut, the vertical movement assembly 220 drives the adjustment mechanism 300 upward, and then the horizontal movement assembly 210 moves the adjustment mechanism 300 to the top of the next adjustment nut. Upon startup, the horizontal movement assembly 210 automatically resets, driving the adjustment mechanism 300 to the end of its travel, triggering the home position switch and achieving a horizontal reset. The position of each adjustment nut is known and fixed. The adjustment mechanism 300 is driven horizontally to sequentially move above each adjustment nut by the set travel distance.

[0085] The torque motor and gearbox work together to provide the torque to twist the adjustment nut. When the torque motor moves downward, two situations may occur. First, the position of claw 330 aligns with the adjustment nut, causing claw 330 to directly tighten the adjustment nut. In this case, the torque motor executes the instructions issued by the controller and rotates clockwise or counterclockwise by a certain angle. Second, the position of claw 330 and the adjustment nut do not align. As a result, claw 330 is lifted by the adjustment nut, the spring is compressed, and the proximity switch 340 is triggered. The control system issues a command to slowly rotate the torque motor, that is, claw 330 rotates while the adjustment nut is stationary. When the position of claw 330 rotates to the same position as the adjustment nut, claw 330, under the action of the spring force, quickly drops and tightens the adjustment nut. The proximity switch 340 resets, and the control system issues a command to rotate the adjustment nut.

[0086] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A vibration damping block extrusion device, characterized in that: include: An extrusion device comprises a die, wherein the die is provided with an extrusion end and an adjustment end, wherein the extrusion end is used to extrude the damping block, and the adjustment end is used to adjust the thickness of the damping block extruded by the extrusion end; as well as A detection device comprising a line laser emitting device, at least one first receiving device and a second receiving device; The line laser emitting device emits a light beam toward the damping block of a preset thickness and the damping blocks extruded from each of the extrusion ends simultaneously; The first receiving device is used to receive the light beam reflected from the surface of the extruded damping block, and the second receiving device is used to receive the light beam reflected from the surface of the damping block of preset thickness; A control system and an adjustment device, wherein the adjustment device includes an adjustment mechanism, the adjustment mechanism includes a drive assembly, a claw, and an in-place detection assembly, the claw is provided with a slot capable of nesting the adjustment end, the drive assembly includes a torque motor and a transmission assembly, the torque motor drives the claw to rotate through the transmission assembly, the in-place detection assembly includes a proximity switch and an elastic assembly, the elastic assembly acts on the claw; The claw has a first state in which the clamping slot acts on the adjustment end and a second state in which the clamping slot and the adjustment end are misaligned; When the claw is in the first state, the torque motor drives the claw to rotate to adjust the adjustment end; When the claw is in the second state, based on the misalignment between the slot and the adjustment end, the elastic component is compressed, and the proximity switch moves toward the top of the claw. When it moves to a preset position, the proximity switch is triggered. The control system is used to receive information from the proximity switch. The control system is used to drive the torque motor, and the torque motor slightly rotates the claw to eliminate the misalignment. The claw switches to the first state based on the action of the elastic component.

2. The vibration damping block extrusion device according to claim 1, characterized in that: The adjusting device is used to adjust the adjusting end. Based on the information from the first receiving device, the control system drives the adjusting device to adjust the adjusting end so that the thickness of the damping block extruded from the extrusion end is adjusted. The line laser emitting device and the first receiving device continue to work. The control system is used to obtain information from the first receiving device and the second receiving device to form a closed-loop control system.

3. The vibration damping block extrusion device according to claim 2, characterized in that: The extrusion end is provided with a plurality of extrusion ports, each of which determines the width of the damping block. The adjustment device can act on each of the adjustment ends respectively to adjust the thickness of the extruded damping block.

4. The vibration damping block extrusion device according to claim 3, characterized in that: The adjusting device includes a driving mechanism, the adjusting mechanism is used to adjust the adjusting end, the adjusting mechanism is connected to the driving mechanism, and the driving mechanism is used to drive the adjusting mechanism so that the adjusting mechanism can act on each of the adjusting ends.

5. The vibration damping block extrusion device according to claim 4, characterized in that: The driving mechanism includes a vertical moving component and a horizontal moving component, the adjustment ends are arranged at intervals in the horizontal direction, the vertical moving component is arranged on the horizontal moving component, and the adjustment mechanism is arranged at the lower end of the vertical moving component; The horizontal moving assembly is used to drive the adjustment mechanism to move in the horizontal direction so that the adjustment mechanism can be positioned in the vertical direction of each adjustment end; The vertical moving assembly is used to drive the adjusting mechanism to move in a vertical direction, so that the adjusting mechanism has a first working condition of acting on the adjusting end and a second working condition of being separated from the adjusting end.

6. The vibration damping block extrusion device according to claim 4 or 5, characterized in that: The clamping claw is used to act on the adjusting end, the driving component is used to drive the clamping claw to adjust the adjusting end, the in-place detection component is used to detect the connection status of the clamping claw and the adjusting end, the control system receives information from the in-place detection component, and the control system is used to control the driving component.

7. A method for online detection of the extrusion thickness of a vibration damping block, characterized by: The online detection method for the extrusion thickness of a vibration damping block includes an extrusion device, a linear laser emission device, multiple receiving devices, and an adjustment device, wherein the extrusion device includes multiple extrusion ports and corresponding adjustment nuts, and the adjustment nuts are used to adjust the opening height of the extrusion ports, thereby changing the thickness of the extruded damping block; the adjustment device includes a vertical moving component, a horizontal moving component, and an adjustment mechanism, and the adjustment mechanism includes a torque motor, a transmission component, a clamping claw, a proximity switch, and an elastic component; The online detection method for the extrusion thickness of the vibration damping block includes the following steps: A damping block of standard thickness is prepared as a reference, one of the receiving devices is set corresponding to the damping block of standard thickness, a laser line is emitted by a line laser emitting device to the damping block of standard thickness, and then the laser line reflected by the damping block of standard thickness is received by the receiving device; The extrusion device is started, and each of the extrusion ports extrude a damping block respectively; The remaining receiving devices are respectively arranged corresponding to the extruded damping blocks, and the laser line is emitted by the line laser emitting device to the extruded damping blocks, and then the remaining receiving devices respectively receive the laser line reflected by the extruded damping blocks; The laser line images collected by each receiving device include laser line segments on the surface of the damping block of standard thickness and laser line segments of each damping block flowing during extrusion molding on the production line, and the difference between each extruded damping block and the damping block of standard thickness is determined based on the position of each laser line segment; When the thickness of the extruded damping block needs to be changed, the adjusting nut is adjusted by the adjusting device. The method of adjusting the adjusting nut by the adjusting device includes: When the adjusting device receives an instruction to adjust a certain adjusting nut, the adjusting mechanism is driven by the horizontal moving assembly to move above the adjusting nut to be adjusted, and the adjusting mechanism is driven by the vertical moving assembly to move downward until it contacts the adjusting nut. When contacting, the slot and the adjusting nut may be aligned or misaligned. When the orientation of the clamping slot is aligned with the orientation of the adjusting nut, the torque motor drives the clamping claw to rotate a preset angle through the transmission assembly to adjust the adjusting nut; When the orientation of the slot does not match the orientation of the adjusting nut, the vertical moving component drives the claw to move downward, causing the slot to abut against the top of the adjusting nut, the elastic component is compressed, and the proximity switch moves toward the top of the claw, triggering the proximity switch to issue a preset instruction, causing the torque motor to drive the claw to rotate slightly until the orientation of the slot matches the orientation of the adjusting nut. Based on the resetting action of the elastic component, the claw can act on the adjusting nut and release the proximity switch, causing the torque motor to drive the claw to rotate a preset angle to adjust the adjusting nut.

8. The method for online detection of extrusion thickness of a vibration damping block according to claim 7, characterized in that: The method for controlling the adjustment device by the system based on the two laser line segments includes: Display each laser line segment in the same coordinate system, and the system automatically confirms the alignment of each laser line segment; When the laser lines on the extruded damping blocks are aligned with the laser lines on the damping blocks of standard thickness, a straight line is displayed on the screen, indicating that the thickness of the extruded damping blocks is consistent with the thickness of the damping blocks of standard thickness, and there is no need to start the adjusting device; when the laser lines on the extruded damping blocks are not aligned with the laser lines on the damping blocks of standard thickness, at least two straight lines are displayed on the screen. Taking the laser lines on the damping blocks of standard thickness as a reference, the allowable thickness error range is confirmed and the upper limit setting value and the lower limit setting value are set respectively. When the thickness displayed by the laser lines on the extruded damping blocks is greater than the upper limit setting value, the control system starts the adjusting device after calculation, and the adjusting device negatively adjusts the adjusting nut to reduce the opening height of the extrusion port. When the thickness displayed by the laser lines on the extruded damping blocks is less than the lower limit setting value, the adjusting device positively adjusts the adjusting nut to increase the opening height of the extrusion port.

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