An on-line measuring device for a cylinder needle loom

Abstract

The present application relates to the technical field of needle punching machine, more particularly, to an online measuring device for a cylinder needle punching machine, comprising a driving part, a detection plate, a measuring instrument and a pressure detection part; the detection plate is installed on the driving end of the driving part to be pressed on the surface of the to-be-detected insulation drum under the control of the driving part; the measuring instrument is installed on the fixed end of the driving part; the pressure detection part is installed on the driving part to detect the actual pressure value applied by the driving part to the detection plate, and the measuring instrument is controlled to start when the actual pressure value reaches the preset pressure value. The online measuring device for the cylinder needle punching machine can effectively solve the problem that the existing needle punching machine does not have an online measuring device and can only use artificial inspection to measure the wall thickness of the insulation drum. The online measuring device can effectively inspect and measure the wall thickness of the insulation drum, and has high accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of acupuncture machine technology, and more specifically, to an online measuring device for a cylindrical acupuncture machine. Background Technology

[0002] During the production of insulated containers, the wall thickness needs to be checked to control product quality. The process involves winding a mesh and carbon cloth around a cylindrical core mold and then needle-punching it. After every three layers of needle-punching (the number of layers can be set according to actual conditions), an inspection is performed to measure the product wall thickness and control product quality.

[0003] The existing needle punching machine does not have an online measuring device, and the wall thickness of the insulation barrel can only be measured manually. It can only be compared with the gauge, which has low accuracy and low efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an online measuring device for a cylindrical needle punching machine to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention proposes an online measuring device for a cylindrical needle punching machine, comprising: a driving unit, a detection plate, a measuring instrument, and a pressure detection unit; the detection plate is installed on the driving end of the driving unit to press against the surface of the heat preservation barrel to be tested under the control of the driving unit; the measuring instrument is installed on the fixed end of the driving unit; the pressure detection unit is installed on the driving unit to detect the actual pressure value applied by the driving unit to the detection plate, and controls the measuring instrument to start when the actual pressure value reaches a preset pressure value.

[0006] Optionally, the drive unit includes a base, on which a drive cylinder is provided. The output end of the drive cylinder is connected to a pressure plate, which is connected to one side of the pressure detection unit. The other side of the pressure detection unit is connected to a pressure bearing seat, which is connected to a connecting plate. The connecting plate is provided with a detection plate and a reflector, and the reflector is positioned opposite to the measuring instrument.

[0007] Optionally, a stabilizing rod is connected to the connecting plate, and the middle part of the stabilizing rod is slidably connected in the sliding hole of the base.

[0008] Optionally, there are two stabilizer bars, located on both sides of the drive cylinder.

[0009] Optionally, the pressure plate is provided with two guide shafts, the two guide shafts being slidably connected in the middle of the guide hole of the machine base.

[0010] Optionally, the pressure bearing seat includes a bearing frame connected to the pressure detection unit, the bearing frame being rotatably connected to the support block via a hinge shaft, and the support block being connected to the center of the connecting plate.

[0011] Optionally, the pressure detection unit includes a pressure sensor connected between the support frame and the pressure plate.

[0012] Optionally, the stabilizing rod includes a rod body slidably disposed in a sliding hole in the base, one end of the rod body being connected to a limiting plate, the limiting plate being provided with a strip-shaped slide rail, a limiting slide shaft passing through the strip-shaped slide rail, one end of the limiting slide shaft being fixedly connected to a connecting plate, and the other end of the limiting slide shaft being fixedly connected to a limiting head, the limiting head being blocked on the side of the limiting plate away from the connecting plate; a spring is connected between the limiting plate and the connecting plate, and the rod body passes through the inside of the spring.

[0013] Optionally, two strip slides are provided, and each strip slide is provided with a limiting slide shaft. The two limiting slide shafts are arranged opposite to each other on both sides of the rod body, and one limiting slide shaft is located between the rod body and the drive cylinder.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] This invention provides an online measuring device for a cylindrical needle punching machine, which effectively solves the problem that existing needle punching machines lack online measuring devices and can only rely on manual inspection and measurement of the insulation barrel wall thickness. This device can effectively inspect and measure the insulation barrel wall thickness with high accuracy and efficiency. Setting the detection pressure of the pressure detection unit can prevent the detection plate from excessively squeezing the insulation barrel product to be measured, thus avoiding distortion of the detection values. It also ensures a tight fit between the detection plate and the insulation barrel, improving the accuracy of the detection results.

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a first-view structural schematic diagram of the online measurement device provided in an embodiment of the present invention;

[0019] Figure 2 This is a second-view structural schematic diagram of the online measurement device provided in an embodiment of the present invention;

[0020] Figure 3 A first-view structural schematic diagram of the drive unit and pressure detection unit provided in an embodiment of the present invention;

[0021] Figure 4 A second-view structural schematic diagram of the driving unit and pressure detection unit provided in an embodiment of the present invention;

[0022] Figure 5 A partial structural diagram provided for an embodiment of the present invention. Figure 1 ;

[0023] Figure 6 A partial structural diagram provided for an embodiment of the present invention. Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the structure of the limiting plate provided in an embodiment of the present invention;

[0025] Figure 8 This is a third-view structural diagram of the online measurement device provided in an embodiment of the present invention;

[0026] Figure 9 A partial structural diagram provided for an embodiment of the present invention. Figure 3 ;

[0027] Figure 10 This is a schematic diagram of the structure of the reflector provided in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the structure of the seat plate provided in an embodiment of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0031] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0032] The following is in conjunction with the appendix Figure 1-11 The present invention will be described in further detail below.

[0033] Example 1

[0034] like Figures 1-11As shown, an online measuring device for a cylindrical needle punching machine includes: a drive unit 1, a detection plate 2, a measuring instrument 3, and a pressure detection unit 4; the detection plate 2 is installed on the drive end of the drive unit 1 to press against the surface of the heat preservation barrel to be tested under the control of the drive unit 1; the measuring instrument 3 is installed on the fixed end of the drive unit 1; the pressure detection unit 4 is installed on the drive unit 1 to detect the actual pressure value applied by the drive unit 1 to the detection plate 2, and controls the measuring instrument 3 to start when the actual pressure value reaches the preset pressure value.

[0035] This invention provides an online measuring device for a cylindrical needle punching machine, used to detect the wall thickness of an insulation barrel. It effectively solves the problem that existing needle punching machines lack online measuring devices, requiring manual inspection of the insulation barrel wall thickness. This device effectively measures the insulation barrel wall thickness with high accuracy and efficiency. During the production process, the insulation barrel wall thickness needs to be measured to control product quality. During production, a mesh and carbon cloth are wound around a cylindrical core mold and needle punched. After every three needle punches (the number of layers can be set according to actual conditions), a test is performed. During testing, when the cylindrical core mold is not needle punched, the drive unit 1 controls the detection plate 2 to press against the surface of the cylindrical core mold. The pressure detection unit 4 detects the actual pressure value applied by the drive unit 1 to the detection plate 2. When the actual pressure value reaches a preset pressure value, the drive unit 1 stops driving the detection plate 2 and starts the measuring instrument 3. The measuring instrument 3 detects the distance between itself and the reflector 6 at the drive end of the drive unit 1 and collects data. The data is then processed in the background. Analysis shows that the initial distance is D1. The cylindrical core mold is wound with a mesh and carbon cloth, and then needle-punched. Each time a preset number of needle-punching layers are wound, the drive unit 1 controls the detection plate 2 to press against the needle-punched cylindrical core mold. At this time, the distance between the detection plate 2 and the reflector 6 at the drive end of the drive unit 1 is detected by the measuring instrument 3, and data is collected. This distance is D2. D2-D1 = the actual wall thickness of the insulation bucket. The inspection measurement is accurate and efficient. Furthermore, the actual wall thickness of the insulation bucket can be compared with the theoretical value to determine the quality of the processed insulation bucket. In this invention, the pressure detection unit 4 detects the actual pressure applied by the drive unit 1 to the detection plate 2. When the actual pressure reaches the preset pressure value, the measuring instrument 3 is activated for detection. Because the product itself has some elasticity, setting the detection pressure of the pressure detection unit 4 can prevent the detection plate 2 from excessively squeezing the insulation bucket product to be measured, thus avoiding distortion of the detection values. It also ensures the tightness of the fit between the detection plate and the insulation bucket to be tested, improving the accuracy of the detection results.

[0036] The drive unit 1 includes a base 101, on which a drive cylinder 102 is provided. The output end of the drive cylinder 102 is connected to a pressure plate 103. The pressure plate 103 is connected to one side of the pressure detection unit 4. The other side of the pressure detection unit 4 is connected to a pressure bearing seat. The pressure bearing seat is connected to a connecting plate 104. The connecting plate 104 is provided with a detection plate 2 and a reflector 6. The reflector 6 is arranged opposite to the measuring instrument 3.

[0037] The base 101 is used to connect with the frame of the cylindrical needle punching machine. The output end of the drive cylinder 102 is connected to the pressure plate 103, which controls the movement of the pressure plate 103. The pressure plate 103 drives the connecting plate 104 to move through the pressure detection part 4 and the pressure bearing seat. The connecting plate 104 is equipped with a detection plate 2, which can drive the detection plate 2 to fit or separate from the heat preservation barrel to be tested. The pressure detection part 4 is set between the pressure plate 103 and the pressure bearing seat, which can detect the actual pressure value when the drive cylinder 102 controls the detection plate 2 to fit with the heat preservation barrel to be tested.

[0038] The pressure detection unit 4 includes a pressure sensor, which is connected between the support frame 106 and the pressure plate 103.

[0039] A stabilizing rod is connected to the connecting plate 104, and the middle part of the stabilizing rod is slidably connected in the sliding hole of the base 101; there are two stabilizing rods, which are located on both sides of the drive cylinder 102. The stabilizing rods help to improve the stability of the drive cylinder 102 in controlling the movement of the connecting plate 104.

[0040] The pressure plate 103 is provided with two guide shafts 105, which are slidably connected in the middle of the guide hole. The two guide shafts 105 improve the stability when the drive cylinder 102 drives the pressure plate 103 to move.

[0041] The pressure-bearing seat includes a support frame 106 connected to the pressure detection unit 4. The support frame 106 is rotatably connected to the support block 107 via a hinge shaft. The support block 107 is connected to the center of the connecting plate 104. The stabilizing rod includes a rod body 108 slidably disposed in a sliding hole in the base 101. One end of the rod body 108 is connected to a limiting plate 109. The limiting plate 109 is provided with a strip-shaped slide 110. A limiting slide shaft 111 passes through the strip-shaped slide 110. One end of the limiting slide shaft 111 is fixedly connected to the connecting plate 104. The other end of the limiting slide shaft 111 is fixedly connected to a limiting head 112. The limiting head 112 is blocked on the side of the limiting plate 109 away from the connecting plate 104. A spring 113 is connected between the limiting plate 109 and the connecting plate 104. The rod body 108 passes through the inside of the spring 113. Because the support frame 106 is rotatably connected to the support block 107 via a hinge shaft, the support frame 106 and the support block 107 can rotate relative to each other. The support block 107 drives the connecting plate 104 and the detection plate 2 to rotate, and the detection plate 2 can form an angle with the base 101, allowing the detection plate 2 to make closer contact with the cylinder to be measured, and making the perpendicularity of the laser rangefinder sensor to the insulation barrel to be measured more accurate, so as to improve the accuracy of the actual measurement results. When the connecting plate 104 and the detection plate 2 rotate, the connecting plate 104 drives the limiting slide shaft 111 to shift, and the limiting slide shaft 111 slides in the strip slide 110, changing the relative position of the limiting slide shaft 111 and the strip slide 110. At this time, the limiting slide shaft 111 is in an inclined state in the strip slide 110, so that the connecting plate 104 can perform... The limiting head 112 fixed to the limiting slide shaft 111 is used to limit the limiting slide shaft 111 and prevent it from disengaging from the strip slide 110. When relative rotation occurs between the connecting plate 104 and the machine base 101, the compression or tension state of the spring 113 between the limiting plate 109 and the connecting plate 104 changes to meet actual needs. The rod 108 passes through the inner side of the spring 113, which can improve the effect of the spring 113 when compressed or stretched and prevent the spring 113 from bending directly when the limiting plate 109 and the connecting plate 104 move relative to each other. The above structure allows the detection plate 2 to fit precisely and tightly against the cylinder to be measured. After the detection plate 2 disengages from the cylinder to be measured, it can be reset under the elastic force of the spring 113 and return to a state parallel to the machine base 101.

[0042] Two strip slides 110 are provided, and each strip slide 110 is equipped with a limiting slide shaft 111. The two limiting slide shafts 111 are arranged opposite each other on both sides of the rod 108. One limiting slide shaft 111 is located between the rod 108 and the drive cylinder 102. The arrangement of the two limiting slide shafts 111 is beneficial to improving the guiding and limiting effect. When the detection plate 2 is parallel to the base 101, the two limiting slide shafts 111 are located at the center of the two strip slides 110, allowing them to tilt and move to either side.

[0043] Example 2

[0044] like Figures 1-11 As shown, the measuring instrument 3 includes a laser displacement ranging sensor 5, which is connected to a base plate 7. The base plate 7 is threadedly connected to an adjusting screw 8, and the base plate 7 slides on the bottom surface of the machine base 101. The two ends of the adjusting screw 8 are rotatably connected to the machine base 101. The adjusting screw 8 is connected to a motor fixed to the side of the machine base 101.

[0045] During measurement, the actual wall thickness of the insulation bucket at different locations may vary. To improve measurement accuracy, this invention incorporates a laser displacement ranging sensor 5 with adjustable position. During adjustment, the motor on the side of the base 101 is activated, controlling the adjustment screw 8 to rotate. This rotation changes the contact position between the screw and the base plate 7, causing the base plate 7 to slide on the bottom surface of the base 101. This ultimately adjusts the actual position of the laser displacement ranging sensor 5. Multiple reflectors 6 can be mounted on the connecting plate 104, allowing the laser displacement ranging sensor 5 to align with reflectors 6 at different locations, thereby measuring the distance between them and ultimately calculating the wall thickness at different locations of the insulation bucket. This improves the accuracy of insulation bucket wall thickness detection and enables quality inspection of the insulation bucket.

[0046] Movable rods 701 are slidably mounted in the side holes on both sides of the base plate 7. One end of each movable rod 701 is fixed with a side stop 702 to limit the two sides of the reflector 6. A follower plate 703 is fixed on each side stop 702 to limit the side of the reflector 6 away from the laser displacement distance sensor 5. A reset spring 704 is fixed between the stop at the other end of each movable rod 701 and the two side holes, and the reset spring 704 is sleeved on the movable rod 701. An elastic rubber pad 705 is fixed inside each side stop 702, and the elastic rubber pad 705 is located between the side stop 702 and the reflector 6. The reflector 6 slides on the horizontal axis at the bottom of the connecting plate 104.

[0047] When only one reflector 6 is provided inside the present invention, the reflector 6 can be slidably connected to the horizontal axis at the bottom of the connecting plate 104, and the reflector 6 and the connecting plate 104 are slidably engaged. At this time, when the base plate 7 drives the laser displacement ranging sensor 5 to move, the base plate 7 can drive the movable rods 701 at both ends of it to move. The two movable rods 701 can drive the reflector 6 to slide on the horizontal axis at the bottom of the connecting plate 104 through the two side stops 702, thereby adjusting the position of the reflector 6. Furthermore, the follower plate 703 is fixed on both side stops 702, and the reflector 6 is driven away from the machine at the driving end of the driving part 1. When the base 101 is in place, the reflector 6 can drive the two follower plates 703 away from the base 101. The two follower plates 703 drive the two movable rods 701 to slide in the side holes on both sides of the base plate 7 through the two side stops 702, and compress the two reset springs 704. This allows the displacement adjustment of the base plate 7 to drive the reflector 6 without affecting the drive end of the drive unit 1 to drive the reflector 6 to move. When the reflector 6 moves toward the base 101, the two follower plates 703 remain attached to the reflector 6 under the elastic force of the two reset springs 704, and will not loosen.

[0048] The reflector 6 is slidably engaged with the connecting plate 104. A vertical beam 601 is fixed to the side of the reflector 6 away from the laser displacement ranging sensor 5. The vertical beam 601 is slidably connected to the horizontal shaft through a horizontal hole. One end of a horizontal beam 602 is fixed to the bottom of the vertical beam 601. The other end of the horizontal beam 602 is slidably connected to one end of a telescopic beam 603. A movable block fixed on the telescopic beam 603 slides in a limiting slide rail on the lower surface of the horizontal beam 602. The movable block is threadedly connected to the middle of a movable screw 604. The movable screw 604 is rotatably connected to the horizontal beam 602. The end of the telescopic beam 603 away from the laser displacement ranging sensor 5 is provided with a telescopic extension mechanism. The top pressure beam 605 slides within the telescopic groove of the telescopic beam 603. One end of the top pressure beam 605 is connected to the inner side of the telescopic groove of the telescopic beam 603 via a tension spring, and the other end of the top pressure beam 605 is rotatably connected to the top pressure roller 606. The linkage block 607 fixed on the side of the top pressure beam 605 slides within the side sliding groove of the telescopic beam 603. An end plate is fixed on the side of the telescopic beam 603, and a sliding shaft slides on the end plate. A disc seat is fixed at one end of the sliding shaft near the linkage block 607, and a push-button alarm 608 is installed on the disc seat. A buffer spring 609 is fixed between the disc seat and the end plate, and the buffer spring 609 is sleeved on the sliding shaft.

[0049] When the detection plate 2 is in contact with the insulation bucket to be tested, the movable screw 604 can be rotated to change its contact position with the movable block. The screws threaded onto the movable block can be tightened onto the movable screw 604, thus fixing the contact position between the movable screw 604 and the movable block. This controls the movable block to drive the telescopic beam 603 to slide within the crossbeam 602, thereby controlling the top pressure roller 606 on the top pressure beam 605 to contact the insulation bucket to be tested via the telescopic beam 603. At this time, as the position of the laser displacement ranging sensor 5 is adjusted, the position of the reflector 6 is adjusted, causing the reflector 6 to drive the top pressure roller 606 to contact different positions on the insulation bucket to be tested. If some parts of the insulation bucket are too thick, it will affect the contact position of the top pressure roller 606. 6. A thrust is generated, and the top pressure roller 606 drives the top pressure beam 605 to slide within the telescopic beam 603, and drives the linkage block 607 to move towards the push-button alarm 608. When the linkage block 607 contacts the push-button alarm 608, the push-button alarm 608 sounds an alarm, reminding production personnel that the local thickness of the insulation bucket is too large and the product quality is poor. After the linkage block 607 contacts the push-button alarm 608, it can drive the push-button alarm 608 and the disc seat to move towards the end plate, and compress the buffer spring 609. The buffer spring 609 plays a buffering role, ensuring that the movement of the top pressure roller 606 will not damage the insulation bucket, and the rolling action of the top pressure roller 606 on the insulation bucket reduces its wear on the insulation bucket.

[0050] The sliding shaft is threaded with a limiting nut, which is locked on the side of the end plate away from the buffer spring 609. By changing the contact position between the limiting nut and the sliding shaft, the initial distance between the linkage block 607 and the push-button alarm 608 can be changed, thereby setting the range that requires an alarm when the thickness exceeds a preset value according to actual needs.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An online measuring device for a cylindrical needle punching machine, characterized in that, include: The device comprises a drive unit (1), a detection plate (2), a measuring instrument (3), and a pressure detection unit (4). The detection plate (2) is installed on the drive end of the drive unit (1) to press against the surface of the insulation bucket to be tested under the control of the drive unit (1). The measuring instrument (3) is installed on the fixed end of the drive unit (1). The pressure detection unit (4) is installed on the drive unit (1) to detect the actual pressure value applied by the drive unit (1) to the detection plate (2), and controls the measuring instrument (3) to start when the actual pressure value reaches the preset pressure value. The drive unit (1) includes a base (101), on which a drive cylinder (102) is provided. The output end of the drive cylinder (102) is connected to a pressure plate (103). The pressure plate (103) is connected to one side of the pressure detection unit (4). The other side of the pressure detection unit (4) is connected to a pressure bearing seat. The pressure bearing seat is connected to a connecting plate (104). The connecting plate (104) is provided with a detection plate (2) and a reflector (6). The reflector (6) is arranged opposite to the measuring instrument (3). The pressure seat includes: a support frame (106) connected to the pressure detection unit (4), the support frame (106) being rotatably connected to the support block (107) via a hinge shaft, the support block (107) being connected to the center of the connecting plate (104); the pressure detection unit (4) includes: a pressure sensor, the pressure sensor being connected between the support frame (106) and the pressure plate (103); The measuring instrument (3) includes a laser displacement ranging sensor (5), which is connected to the base plate (7). The base plate (7) is threadedly connected to the adjusting screw (8), and the two ends of the adjusting screw (8) are rotatably connected to the machine base (101). The reflector (6) and the connecting plate (104) are slidably fitted. The side of the reflector (6) away from the laser displacement distance sensor (5) is fixed with a vertical beam (601). The vertical beam (601) is slidably connected to the horizontal shaft through a horizontal hole. One end of the horizontal beam (602) is fixed at the bottom of the vertical beam (601). The other end of the horizontal beam (602) is slidably connected to one end of the telescopic beam (603). The movable block fixed on the telescopic beam (603) slides in the limiting slide rail on the lower surface of the horizontal beam (602). The movable block is threadedly connected to the middle of the movable screw (604). The movable screw (604) is rotatably connected to the horizontal beam (602). The end of the telescopic beam (603) away from the laser displacement distance sensor (5) is provided with There is a telescopic groove, and a top pressure beam (605) slides in the telescopic groove. One end of the top pressure beam (605) is connected to the inner side of the telescopic groove of the telescopic beam (603) through a tension spring. The other end of the top pressure beam (605) is rotatably connected to the top pressure roller (606). The linkage block (607) fixed on the side of the top pressure beam (605) slides in the side sliding groove of the telescopic beam (603). The end plate is fixed on the side of the telescopic beam (603). The sliding shaft slides in the end plate. A disc seat is fixed at one end of the sliding shaft near the linkage block (607). A push-type alarm (608) is installed on the disc seat. A buffer spring (609) is fixed between the disc seat and the end plate. The buffer spring (609) is sleeved on the sliding shaft.

2. The online measuring device for a cylindrical needle punching machine as described in claim 1, characterized in that, A stabilizing rod is connected to the connecting plate (104), and the middle part of the stabilizing rod is slidably connected in the sliding hole of the base (101).

3. The online measuring device for a cylindrical needle punching machine as described in claim 2, characterized in that, The stabilizer bar is provided in two parts, which are located on both sides of the drive cylinder (102).

4. The online measuring device for a cylindrical needle punching machine as described in claim 3, characterized in that, The pressure plate (103) is provided with two shafts (105), and the two shafts (105) are slidably connected in the middle of the guide hole of the base (101).

5. The online measuring device for a cylindrical needle punching machine as described in claim 4, characterized in that, The stabilizing rod includes: a rod body (108) slidably disposed in a sliding hole in the base (101), one end of the rod body (108) being connected to a limiting plate (109), a strip slide (110) being provided on the limiting plate (109), a limiting slide shaft (111) passing through the strip slide (110), one end of the limiting slide shaft (111) being fixedly connected to a connecting plate (104), and the other end of the limiting slide shaft (111) being fixedly connected to a limiting head (112), the limiting head (112) being blocked on the side of the limiting plate (109) away from the connecting plate (104); a spring (113) is connected between the limiting plate (109) and the connecting plate (104).

6. The online measuring device for a cylindrical needle punching machine as described in claim 5, characterized in that, The rod (108) passes through the inside of the spring (113).

7. The online measuring device for a cylindrical needle punching machine as described in claim 6, characterized in that, Two strip slides (110) are provided, and each strip slide (110) is provided with a limiting slide shaft (111). The two limiting slide shafts (111) are arranged opposite to each other on both sides of the rod (108), and one limiting slide shaft (111) is located between the rod (108) and the drive cylinder (102).

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