A defect detection device for processing and producing inner liner paper

Abstract

The application relates to the technical field of defect detection, and specifically discloses a defect detection device for inner lining paper processing and production, which comprises a detector base, a fixing seat is fixedly installed in the inside of the detector base, one detection seat is slidably installed at the two ends of the fixing seat, a bidirectional sliding table one is fixedly installed at the top of the detector base, two deviation rectifying assemblies are symmetrically arranged at the bottom of the bidirectional sliding table one, and two clamping assemblies are symmetrically arranged at the top of the fixing seat; the two ends of a sample are limited through scale adjustment of the movable plate, after the sample is placed between the positioning plate and the movable plate, the positioning plate is pushed upward, the support plate supports the bottom of the sample through gear and rack transmission driving, the positioning plate is driven by the spring one to press the sample, the bidirectional sliding table one is started, the positioning mechanism and the supporting mechanism are driven by the movable seat and the mounting seat to complete sample cleaning and righting, dust interference and uneven stress problems are effectively reduced, and the detection precision is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of defect detection technology, and in particular to a defect detection device for inner lining paper processing and production. Background Technology

[0002] As a key auxiliary material in the packaging, printing and decoration fields, liner paper is widely used in food packaging, cigarette packaging, cosmetics packaging and high-end consumer goods packaging. Its core functions include providing protection, support and cushioning for the main packaging material, and enhancing the overall texture and added value of the product. With the continuous improvement of product quality requirements in modern manufacturing, the quality control of liner paper has become an important factor affecting the competitiveness of the final product.

[0003] The production process of inner lining paper typically involves multiple steps, including pulping, papermaking, coating, lamination, calendering, and slitting. During these processes, various quality defects can easily arise due to factors such as fluctuations in raw material quality, limitations in equipment precision, improper control of process parameters, and environmental factors. These defects not only affect the appearance quality of the product but may also lead to serious problems such as damage to the main packaging material, product contamination, and packaging failure during subsequent processing and use, causing huge economic losses and brand reputation risks to the manufacturing company. Therefore, sampling and testing are crucial.

[0004] Currently, the main method for detecting defects in lining paper is a horizontal tensile tester. This testing device clamps the two ends of the lining paper sample for testing, requiring the two clamping lines to be parallel to each other, the center line of the sample to be perpendicular to the clamping lines, and the deviation to be no more than 1 degree. However, the existing tensile testers have a relatively simple structure, and the clamping process relies entirely on the operator's experience. This clamping method is prone to causing excessive deviation in the perpendicularity between the center line of the sample and the clamping lines, which in turn affects the stress state of the sample, causes quality detection deviation, and reduces the accuracy of the test.

[0005] Therefore, there is a need to provide a defect detection device for the processing and production of inner lining paper, which aims to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide a defect detection device for inner lining paper processing, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A defect detection device for inner lining paper processing includes a detector base, a fixed seat fixedly installed inside the detector base, a detector seat slidably installed at each end of the fixed seat, a bidirectional slide table fixedly installed on the top of the detector base, two correction components symmetrically arranged at the bottom of the bidirectional slide table, and two clamping components symmetrically arranged on the top of the fixed seat. The correction component includes a mounting base, a positioning mechanism, a support mechanism, a clamping mechanism, and a movable seat. The mounting base is fixedly connected to the bottom of the movable seat, and the movable seat is fixedly connected to the movable end of the bidirectional slide table.

[0009] The positioning mechanism includes a positioning plate slidably installed inside the mounting base, two movable plates slidably installed on the outer side of the positioning plate, and a scale on the top of the positioning plate;

[0010] The support mechanism includes a connecting plate slidably mounted on the top of the mounting base. Two racks are symmetrically fixedly connected to the outer side of the connecting plate. Two support plates are slidably mounted on the bottom of the mounting base via an L-shaped block. A rack is fixedly connected inside the support plate. A gear and two gears are rotatably connected to the bottom of the mounting base. The gear is fixedly connected between the two gears. The rack meshes with the gear and the gear meshes with the rack.

[0011] As a further improvement to the above solution, the clamping assembly includes a bidirectional slide second slidably connected to the upper surface of the fixed base. The bidirectional slide second is fixedly connected to the detection base. The top of the bidirectional slide second is provided with two slide seats and two support blocks. The slide seats are fixedly connected to the movable end of the bidirectional slide second. The support blocks are slidably connected to the outer side of the bidirectional slide second. A clamping block is slidably connected to the inner side of the slide seat. A push seat is slidably connected to the top of the slide seat through a spring five. A push rod is rotatably connected between the push seat and the clamping block.

[0012] As a further improvement to the above solution, the positioning mechanism also includes four sliders fixedly connected to the outside of the positioning plate, four positioning rods fixedly connected inside the mounting base, the sliders being slidably connected to the outside of the positioning rods, and a spring being fixedly connected between the sliders and the inner wall of the mounting base, the springs being fitted onto the outside of the positioning rods.

[0013] As a further improvement to the above solution, a second spring is fixedly connected between the connecting plate and the inner wall of the mounting base, and the first rack is slidably installed inside the mounting base.

[0014] As a further improvement to the above solution, four L-shaped blocks are provided, and all four L-shaped blocks are slidably connected between the rack and the inner wall of the support plate.

[0015] As a further improvement to the above solution, the clamping mechanism includes a clamping seat and a snap-fit ​​seat. The snap-fit ​​seat is fixedly connected to the top of the connecting plate, the clamping seat is slidably connected to the top of the mounting seat, a fixing plate is fixedly connected to the top of the mounting seat, a spring is fixedly connected between the clamping seat and the fixing plate, and a snap-fit ​​block is fixedly connected to the inner wall of the clamping seat.

[0016] As a further improvement to the above solution, two guide rods are fixedly connected to the bottom of the slide, and two springs are fixedly connected between the slide and the support block. The guide rods are slidably connected inside the support block, and the springs are sleeved on the outside of the guide rods.

[0017] As a further improvement to the above solution, the push base consists of a push block and a connecting rod, and the push base is slidably connected to the slide block through the connecting rod.

[0018] As a further improvement to the above solution, a limiting rod is fixedly connected to the top of the clamping block, and the limiting rod is slidably connected to the top of the slide block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The sample is limited at both ends by adjusting the scale on the movable plate. After the sample is placed between the positioning plate and the movable plate, the positioning plate is pushed upward. The support plate is driven by the gear and rack transmission to support the bottom of the sample. Spring 1 drives the positioning plate to press the sample down. The bidirectional slide 1 is started. The positioning mechanism and support mechanism are driven by the movable seat and the mounting seat to complete the cleaning and straightening of the sample. This effectively reduces dust interference and uneven force, and significantly improves the detection accuracy.

[0021] After the sample is cleaned and straightened, the bidirectional slide table 2 pushes the support block through the positioning mechanism, so that the two support blocks are joined together to form the bottom support of the sample. The slide continues to be driven to achieve the connection of the push seat. After the push seat is connected, it continues to move and is limited by the limit rod. Under the action of the push rod, the clamping block is pushed down to complete the clamping of the sample, so as to work in coordination with the correction component to achieve fast and accurate clamping of the sample. The tensile test is carried out through the test seat, without affecting the normal correction and cleaning functions of the correction component. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the initial structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the positioning sample of the correction component of the present invention;

[0026] Figure 4 This is a schematic diagram of the initial structure of the correction component of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the correction component of the present invention;

[0028] Figure 6 This is a schematic diagram of the positioning mechanism of the present invention;

[0029] Figure 7 This is a cross-sectional structural diagram of the mounting base of the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point A;

[0031] Figure 9 This is a schematic diagram of the connecting plate of the present invention;

[0032] Figure 10 This is a schematic diagram of the clamping mechanism of the present invention;

[0033] Figure 11 This is a schematic diagram of the initial structure of the clamping assembly of the present invention;

[0034] Figure 12 This is a schematic diagram of the clamping assembly of the present invention clamping a sample;

[0035] Figure 13 This is a schematic diagram of the structure of the slide and support block of the present invention;

[0036] Figure 14 This is a schematic diagram of the slide block of the present invention.

[0037] In the diagram: 1. Detector base; 2. Fixed seat; 3. Two-way slide table one; 4. Correction assembly; 41. Mounting seat; 42. Positioning mechanism; 421. Positioning plate; 422. Movable plate; 423. Positioning rod; 424. Slider; 425. Spring one; 43. Support mechanism; 431. Support plate; 432. Connecting plate; 433. Rack one; 434. Rack two; 435. Spring two; 436. Gear one; 437. Gear... Wheel 2; 438, L-shaped block; 44, clamping mechanism; 441, clamping seat; 442, snap-fit ​​seat; 443, spring 3; 444, fixing plate; 445, snap-fit ​​block; 45, movable seat; 5, clamping assembly; 51, bidirectional slide 2; 52, slide seat; 53, support block; 54, limit rod; 55, clamping block; 56, guide rod; 57, spring 4; 58, push seat; 59, spring 5; 50, push rod; 6, detection seat. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0039] Please see Figures 1 to 14 As shown, the present invention provides an embodiment:

[0040] A defect detection device for inner lining paper processing includes a detector base 1, a fixed seat 2 is fixedly installed inside the detector base 1, a detector seat 6 is slidably installed at both ends of the fixed seat 2, a bidirectional slide 3 is fixedly installed on the top of the detector base 1, the bidirectional slide 3 is a positive and negative threaded rod guide slide, two correction components 4 are symmetrically arranged at the bottom of the bidirectional slide 3, and two clamping components 5 are symmetrically arranged on the top of the fixed seat 2. The correction component 4 includes a mounting base 41, a positioning mechanism 42, a support mechanism 43, a clamping mechanism 44 and a movable seat 45. The mounting base 41 is fixedly connected to the bottom of the movable seat 45, and the movable seat 45 is fixedly connected to the movable end of the bidirectional slide 3.

[0041] The positioning mechanism 42 includes a positioning plate 421 that is slidably installed inside the mounting base 41. Two movable plates 422 are slidably installed on the outer side of the positioning plate 421. The top of the positioning plate 421 is provided with a scale.

[0042] The support mechanism 43 includes a connecting plate 432 slidably mounted on the top of the mounting base 41. Two racks 433 are symmetrically fixedly connected to the outer side of the connecting plate 432. Two support plates 431 are slidably mounted on the bottom of the mounting base 41 via an L-shaped block 438. A rack 434 is fixedly connected inside the support plate 431. A gear 436 and two gears 437 are rotatably connected to the bottom of the mounting base 41. The gear 436 is fixedly connected between the two gears 437. The racks 433 and 436 mesh with each other, and the gears 437 and 434 mesh with each other.

[0043] The positioning mechanism 42 also includes four sliders 424 fixedly connected to the outside of the positioning plate 421. Four positioning rods 423 are fixedly connected inside the mounting base 41. The sliders 424 are all slidably connected to the outside of the positioning rods 423. A spring 425 is fixedly connected between the sliders 424 and the inner wall of the mounting base 41. The spring 425 is sleeved on the outside of the positioning rods 423.

[0044] In practical applications, the embodiments of the present invention, such as Figures 2 to 5 As shown, the operator first adjusts the position of the movable plate 422 according to the width specification of the inner lining paper sample by using the precision scale on the positioning plate 421 to ensure the adjustment accuracy. Then, the inner lining paper sample to be tested is placed flat and moved upward to make it fit tightly against the lower surface of the positioning plate 421, and to ensure that both sides of the sample are in complete contact with the movable plate 422. On this basis, the sample is pushed upward to drive the positioning plate 421 to move upward synchronously.

[0045] like Figures 4 to 8 As shown, the four sliders 424 fixed on the outside of the positioning plate 421 slide synchronously along the four positioning rods 423 inside the mounting base 41, ensuring that the positioning plate 421 remains horizontal and stable during movement; the upward movement of the positioning plate 421 drives the connecting plate 432 to rise synchronously along the top of the mounting base 41, and the two racks 433 symmetrically installed on the outside of the connecting plate 432 move with the connecting plate 432, driving the gear 436 meshing with it to rotate, and the gear 436 drives the two gears 437 fixedly connected to it to rotate synchronously, and the gear 437 drives the two support plates 431 to move along the L-shaped block 438 towards the middle through meshing with the rack 434 inside the support plate 431, finally forming a stable support structure for the sample from the bottom;

[0046] like Figure 5 , Figure 6 , Figure 7 and Figure 10As shown, when the support plate 431 moves to the appropriate position to fully support the bottom of the sample, the clamping mechanism 44 locks the height position of the connecting plate 432 by mechanical locking, thereby indirectly locking the position of the support plate 431, ensuring that the support plate 431 will not be displaced during the entire testing process, and providing continuous and stable support for the sample. After the position of the support plate 431 is locked, the operator releases the upward pushing force on the sample. At this time, the spring 425 sleeved on the outside of the positioning rod 423 releases elastic potential energy, pushing the slider 424 to slide downward along the positioning rod 423, thereby driving the positioning plate 421 to move downward. The positioning plate 421 and the support plate 431 work together to apply uniform pressure to the sample from both the top and bottom directions.

[0047] Using the same method, the other end of the sample is placed in another correction component 4. The bidirectional slide 3 is activated, and the mounting base 41 is moved by the movable seat 45. The mounting base 41 drives the positioning mechanism 42, support mechanism 43 and clamping mechanism 44 inside it to move synchronously. The uniform pressure ensures that the sample slides relative to the positioning plate 421 and support plate 431. This not only cleans the sample surface, but also achieves precise correction of the sample through the guiding effect of the movable plate 422. This effectively reduces dust interference and avoids excessive deviation between the clamping line and the center line of the sample, thereby significantly improving the detection accuracy.

[0048] like Figure 2 , Figures 11 to 14 As shown, the clamping assembly 5 includes a bidirectional slide 51 slidably connected to the upper surface of the fixed base 2. The bidirectional slide 51 is a forward and reverse threaded rod guide slide and is fixedly connected to the detection base 6. The top of the bidirectional slide 51 is provided with two slide seats 52 and two support blocks 53. The slide seats 52 are fixedly connected to the movable end of the bidirectional slide 51. The support blocks 53 are slidably connected to the outer side of the bidirectional slide 51. The inner side of the slide seats 52 is slidably connected to a clamping block 55. The top of the slide seats 52 is slidably connected to a push seat 58 through a spring 59. A push rod 50 is rotatably connected between the push seat 58 and the clamping block 55.

[0049] Two guide rods 56 are fixedly connected to the bottom of the slide block 52. Two springs 57 are fixedly connected between the slide block 52 and the support block 53. The guide rods 56 are slidably connected inside the support block 53, and the springs 57 are sleeved on the outside of the guide rods 56.

[0050] The pusher 58 consists of a push block and a connecting rod, and the pusher 58 is slidably connected to the slide 52 through the connecting rod.

[0051] A limiting rod 54 is fixedly connected to the top of the clamping block 55, and the limiting rod 54 is slidably connected to the top of the slide block 52.

[0052] In practical application, in the initial state, the bidirectional slide table 51 is slidably mounted on the upper surface of the fixed base 2, and the two slides 52 are respectively fixedly connected to the two movable ends of the bidirectional slide table 51, which can move towards or away from each other along the slide guide rail. The support block 53 is slidably connected to the slide 52 through the guide rod 56, and the spring 57 is sleeved on the outside of the guide rod 56 to provide an elastic connection between the slide 52 and the support block 53.

[0053] The clamping block 55 is slidably mounted on the inner side of the slide block 52 via the limiting rod 54. The limiting rod 54 ensures that the clamping block 55 can only move in the vertical direction. The push block 58 is composed of a push block and a connecting rod. It is slidably connected to the top of the slide block 52 via the connecting rod and maintains elastic contact with the slide block 52 via the spring 59. The two ends of the push rod 50 are rotatably connected to the push block 58 and the clamping block 55, respectively.

[0054] After the sample is corrected and cleaned by the correction component 4, the clamping component 5 starts to work. The bidirectional slide table 51 drives the two slide blocks 52 to move towards each other along the guide rail, which drives the support blocks 53 to move synchronously. As the slide blocks 52 move, the two support blocks 53 gradually approach and finally dock, forming a complete support structure for the bottom of the sample.

[0055] While the support block 53 is docking, the slide block 52 continues to move towards each other. At this time, the spring 4 57 begins to be compressed, generating elastic force. When the slide block 52 moves to the predetermined position, the push block parts of the two push blocks 58 come into contact with each other and begin to squeeze. Since the push block 58 is elastically connected to the slide block 52 through the spring 59, the contact and squeezing of the push blocks causes the push block 58 to move along the connecting rod towards the slide block 52, and the spring 59 is compressed.

[0056] The movement of the pusher 58 is converted into the vertical movement of the clamping block 55 by the push rod 50. The two ends of the push rod 50 are rotatably connected to the pusher 58 and the clamping block 55 respectively, forming a crank-slider mechanism. When the pusher 58 moves towards the slide 52, the push rod 50 pushes the clamping block 55 to move downward along the limiting rod 54. The limiting rod 54 ensures that the clamping block 55 remains vertical during the movement and avoids deviation.

[0057] The downward movement of the clamping block 55 achieves the clamping action of the sample, realizing the precise positioning and reliable clamping of the sample. This provides stable clamping conditions for the subsequent testing seat 6 to drive the sample through the clamping assembly 5 for tensile testing. At the same time, it does not affect the normal operation of the correction assembly 4, significantly improving the overall performance and testing accuracy of the testing device.

[0058] like Figure 5 and Figure 7 As shown, a spring 435 is fixedly connected between the connecting plate 432 and the inner wall of the mounting base 41, and a rack 433 is slidably installed inside the mounting base 41.

[0059] In practical application, in the support mechanism 43, spring 435 is fixedly connected between the connecting plate 432 and the inner wall of the mounting base 41 to form an elastic reset system. When the positioning plate 421 drives the connecting plate 432 to move upward, spring 435 is stretched and stores elastic potential energy, providing a precise reset force for the connecting plate 432 while also playing a buffering role in the support process. The sliding installation structure ensures that rack 433 always maintains a precise straight trajectory during the movement and reduces the frictional resistance in the transmission process.

[0060] like Figure 7 , Figure 9 and Figure 10 As shown, the clamping mechanism 44 includes a clamping seat 441 and a snap-fit ​​seat 442. The snap-fit ​​seat 442 is fixedly connected to the top of the connecting plate 432. The clamping seat 441 is slidably connected to the top of the mounting base 41. A fixing plate 444 is fixedly connected to the top of the mounting base 41. A spring 443 is fixedly connected between the clamping seat 441 and the fixing plate 444. A locking block 445 is fixedly connected to the inner wall of the clamping seat 441.

[0061] In practical application, in the initial state, the snap-fit ​​seat 442 is fixedly installed on the top of the connecting plate 432 and moves synchronously with the connecting plate 432. The clamping seat 441 is slidably installed inside the top of the mounting seat 41 via a slide rail and can move horizontally. The fixing plate 444 is fixedly connected to the top of the mounting seat 41 and provides a fixed support point for the spring 3 443. The spring 3 443 is connected between the clamping seat 441 and the fixing plate 444 and is in a naturally extended state or a slightly compressed state in the initial state. The snap-fit ​​block 445 is fixed to the inner wall of the clamping seat 441 and its geometry is precisely matched with the mating surface of the snap-fit ​​seat 442.

[0062] When the support mechanism 43 is working, the connecting plate 432 moves upward, causing the locking seat 442 to rise synchronously. The rising trajectory of the locking seat 442 passes through the internal space of the clamping seat 441. During the rising process of the locking seat 442, the inclined structure on its side contacts the locking block 445 on the inner wall of the clamping seat 441 and generates relative sliding.

[0063] The inclined surface of the locking seat 442 pushes the locking block 445 to move outward, thereby causing the clamping seat 441 to slide away from the locking seat 442 along the guide rail on the top of the mounting seat 41. During this process, the spring 3 443 is compressed and stores elastic potential energy. When the locking seat 442 rises to the predetermined height, the locking block 445 reaches the slot position on the locking seat 442. At this time, the spring 3 443 releases elastic potential energy, pushing the clamping seat 441 to move quickly towards the locking seat 442, so that the locking block 445 is embedded in the slot of the locking seat 442, forming a mechanical lock.

[0064] This locking mechanism has a self-locking characteristic. Once the card block 445 is inserted into the card slot, the card holder 442 cannot move in the vertical direction, thereby achieving reliable fixation of the position of the connecting plate 432. Since the connecting plate 432 is connected to other parts of the support mechanism 43, this locking action indirectly fixes the position of the support plate 431, ensuring that it remains stable throughout the entire testing process.

[0065] After the test is completed, the operator presses the clamping seat 441 inward to overcome the elastic force of the third spring 443, causing the locking block 445 to disengage from the slot of the locking seat 442. Once the locking block 445 is no longer in contact with the locking seat 442, the connecting plate 432 begins to move downward to reset under the action of the second spring 435. At the same time, the operator releases the pushing force on the clamping seat 441, and the third spring 443 pushes the clamping seat 441 back to the initial position, preparing for the next locking action.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A defect detection device for inner lining paper processing, comprising a detector base (1), wherein a fixed seat (2) is fixedly installed inside the detector base (1), and a detection seat (6) is slidably installed at each end of the fixed seat (2), characterized in that: The top of the detector base (1) is fixedly installed with a bidirectional slide table (3). Two correction components (4) are symmetrically arranged at the bottom of the bidirectional slide table (3). Two clamping components (5) are symmetrically arranged at the top of the fixed seat (2). The correction component (4) includes a mounting seat (41), a positioning mechanism (42), a support mechanism (43), a clamping mechanism (44), and a movable seat (45). The mounting seat (41) is fixedly connected to the bottom of the movable seat (45), and the movable seat (45) is fixedly connected to the movable end of the bidirectional slide table (3). The positioning mechanism (42) includes a positioning plate (421) that is slidably installed inside the mounting base (41), and two movable plates (422) are slidably installed on the outer side of the positioning plate (421). The top of the positioning plate (421) is provided with a scale. The support mechanism (43) includes a connecting plate (432) slidably mounted on the top of the mounting base (41). Two racks (433) are symmetrically fixedly connected to the outer side of the connecting plate (432). Two support plates (431) are slidably mounted on the bottom of the mounting base (41) via an L-shaped block (438). A rack (434) is fixedly connected inside the support plate (431). A gear (436) and two gears (437) are rotatably connected to the bottom of the mounting base (41). The gear (436) is fixedly connected between the two gears (437). The rack (433) meshes with the gear (436), and the gears (437) mesh with the rack (434). The support plate (431) is driven by a gear and rack transmission to support the bottom of the sample, and the spring (425) drives the positioning plate (421) to press the sample down. The positioning mechanism (42) also includes four sliders (424) fixedly connected to the outside of the positioning plate (421), and four positioning rods (423) fixedly connected inside the mounting base (41). The sliders (424) are all slidably connected to the outside of the positioning rods (423). A spring (425) is fixedly connected between the sliders (424) and the inner wall of the mounting base (41). The spring (425) is sleeved on the outside of the positioning rods (423). The upward movement of the positioning plate (421) causes the connecting plate (432) to rise synchronously along the top of the mounting base (41); Once the support plate (431) has moved to the appropriate position to fully support the bottom of the sample, the clamping mechanism (44) indirectly locks the position of the support plate (431) by mechanically locking the height position of the connecting plate (432).

2. The defect detection device for inner lining paper processing and production according to claim 1, characterized in that: The clamping assembly (5) includes a bidirectional slide table (51) slidably connected to the upper surface of the fixed base (2). The bidirectional slide table (51) is fixedly connected to the detection base (6). The top of the bidirectional slide table (51) is provided with two slide seats (52) and two support blocks (53). The slide seats (52) are fixedly connected to the movable end of the bidirectional slide table (51). The support blocks (53) are slidably connected to the outside of the bidirectional slide table (51). The inner side of the slide seats (52) is slidably connected to a clamping block (55). The top of the slide seats (52) is slidably connected to a push seat (58) via a spring (59). A push rod (50) is rotatably connected between the push seat (58) and the clamping block (55).

3. The defect detection device for inner lining paper processing and production according to claim 1, characterized in that: A spring (435) is fixedly connected between the connecting plate (432) and the inner wall of the mounting base (41), and the rack (433) is slidably installed inside the mounting base (41).

4. The defect detection device for inner lining paper processing and production according to claim 1, characterized in that: The number of L-shaped blocks (438) is set to four, and the four L-shaped blocks (438) are slidably connected between the rack (434) and the inner wall of the support plate (431).

5. The defect detection device for inner lining paper processing and production according to claim 1, characterized in that: The clamping mechanism (44) includes a clamping seat (441) and a snap-fit ​​seat (442). The snap-fit ​​seat (442) is fixedly connected to the top of the connecting plate (432). The clamping seat (441) is slidably connected to the top of the mounting base (41). A fixing plate (444) is fixedly connected to the top of the mounting base (41). A spring (443) is fixedly connected between the clamping seat (441) and the fixing plate (444). A locking block (445) is fixedly connected to the inner wall of the clamping seat (441).

6. The defect detection device for inner lining paper processing and production according to claim 2, characterized in that: Two guide rods (56) are fixedly connected to the bottom of the slide (52). Two springs (57) are fixedly connected between the slide (52) and the support block (53). The guide rods (56) are slidably connected inside the support block (53), and the springs (57) are sleeved on the outside of the guide rods (56).

7. The defect detection device for inner lining paper processing and production according to claim 2, characterized in that: The push base (58) consists of a push block and a connecting rod, and the push base (58) is slidably connected to the slide base (52) through the connecting rod.

8. The defect detection device for inner lining paper processing and production according to claim 2, characterized in that: The top of the clamping block (55) is fixedly connected to a limiting rod (54), which is slidably connected to the top of the slide block (52).

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