Diamond roller profile detection mechanism
By setting the slide rail, slider and elastic plate in the tool measuring instrument, the problem of difficulty in alignment when fixing the diamond roller is solved, stable positioning and fixing is achieved, damage risk is reduced, and the use effect and equipment efficiency are improved.
Patent Information
- Application Number
- CN202421370299.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-17
AI Technical Summary
In the prior art, diamond rollers are difficult to align when fixed, resulting in easy collision during fixing, causing damage to the diamond rollers and affecting the use effect.
A diamond roller profile detection mechanism is designed. By setting the slide rail, slider and elastic plate in the tool measuring instrument, the sliding cooperation between the slide rail and the slider and the elastic force of the elastic plate are used to achieve stable positioning and fixing of the diamond roller.
It effectively reduces the difficulty of alignment of diamond rollers during fixing, reduces bumps and damage, improves the use effect of diamond rollers, and improves the efficiency of equipment through the design that facilitates disassembly and collection.
Smart Images

Figure CN222598808U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of diamond roller detection, in particular to a diamond roller profile detection mechanism. Background Art
[0002] Diamond roller is a grinding tool made of diamond powder. Diamond roller can be divided into many types, including diamond roller for tool grinding, diamond roller for tool grinding, and diamond roller for saw blade grinding. Diamond roller has the characteristics of high hardness, wear resistance and long life.
[0003] In the prior art, after the production of the diamond roller is completed, it is necessary to use a tool measuring instrument to detect the surface size and accuracy of the diamond roller. The tool measuring instrument is mainly composed of a base, a measuring mechanism, and a fixed component. During use, the diamond roller is placed on the base, sleeved on the fixed component, and fixed, and then the measuring mechanism is operated to detect the diamond roller.
[0004] However, in the prior art, it is found that it is difficult to align the two when fixing the diamond roller through a fixing component, which results in the diamond roller being easily bumped when it is mounted on the fixing component, causing certain damage to the diamond roller, thereby affecting the use effect of the diamond roller to a certain extent. Therefore, a diamond roller profile detection mechanism is proposed to address the above problem. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a diamond roller profile detection mechanism.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a diamond roller profile detection mechanism described in the utility model comprises a tool measuring instrument body; a slide rail is fixedly connected to the side wall of the tool measuring instrument body; a slider is slidably connected to the inner side wall of the slide rail; a groove is opened on the side wall of the slider; a bracket is fixedly connected to the side wall of the slide rail; a first spring is fixedly connected to the side wall of the bracket; an insertion rod is fixedly connected to the end of the first spring; a pull plate is fixedly connected to the side wall of the insertion rod; the pull plate passes through the bracket wall and is slidably connected thereto; an annular block is fixedly connected to the side wall of the slider; a plurality of elastic plates are fixedly connected to the side wall of the annular block; the elastic plates are evenly distributed on the side wall of the annular block and have the same structure; at this time, the elastic plate is arranged to play a positioning role when the diamond roller is fixed, and at the same time, through the sliding cooperation between the slide rail and the slider, the annular block can be easily disassembled and collected when in use.
[0007] Preferably, a telescopic rod is fixedly connected to the side wall of the elastic plate; a second spring is sleeved on the outside of the telescopic rod; a plurality of cleaning brushes are evenly fixedly connected to the ends of the telescopic rod and the second spring; a connecting rod is fixedly connected to the side wall of the cleaning brush; the connecting rod passes through the wall of the cleaning brush and is fixedly connected thereto; at this time, the cleaning brush is provided to clean dust and impurities attached to the surface of the diamond roller.
[0008] Preferably, a pair of elastic sheets are fixed to the side walls of the pull plate; the elastic sheets are symmetrically arranged on both sides of the pull plate and have the same structure; rubber strips are fixed to the side walls of the elastic sheets; and a plurality of anti-slip strips are evenly fixed to the side walls of the pull plate; at this time, the fingers are buckled by the elastic sheets and a certain pressure is applied to the fingers, thereby increasing the firmness of the fingers on the side walls of the pull plate, and the rubber strips can prevent the fingers from being scratched.
[0009] Preferably, the side wall of the slide rail is fixedly connected to a vertical plate; the side wall of the vertical plate is fixedly connected to a scraper; at this time, the scraper is provided to clean the dust and impurities attached to the side wall of the slider, thereby improving the sliding effect between the slide rail and the slider.
[0010] Preferably, a pair of elastic rods are fixedly connected to the side walls of the scraper; the elastic rods are symmetrically arranged on both sides of the scraper and have the same structure; rubber balls are fixedly connected to the ends of the elastic rods; at this time, the rubber balls are driven by the elastic rods to swing and knock on the scraper, thereby cleaning the dust and impurities remaining on the side walls of the scraper.
[0011] Preferably, a magnetic block is fixed to the side wall of the slider; a pair of magnetic strips are symmetrically fixed to the side wall of the slide rail; the magnetic block and the magnetic strip are magnetically connected; at this time, the magnetic block and the magnetic strip are attracted to each other, thereby playing a positioning role when the slider is inserted into the slide rail.
[0012] Preferably, a sponge strip is fixedly connected to the side wall of the elastic plate; in this case, the sponge strip is provided to further enhance the cleaning effect of the dust and impurities remaining on the surface of the diamond roller.
[0013] Beneficial effects of the utility model:
[0014] 1. The utility model provides a diamond roller profile detection mechanism. By setting a slider and an elastic plate, the existing difficulty in aligning the diamond roller with the fixing component on the side wall of the tool measuring instrument body can be reduced, which causes easy collision during fixing and damage to the diamond roller, thereby causing a certain impact on the use effect of the diamond roller. At this time, the elastic plate is set to play a positioning role when the diamond roller is fixed. At the same time, through the sliding cooperation between the slide rail and the slider, the annular block can be easily disassembled and collected during use.
[0015] 2. The utility model provides a diamond roller profile detection mechanism. By setting a cleaning brush, it can reduce the dust and impurities attached to the surface of the diamond roller, which makes it inconvenient to clean and thus has a certain impact on the detection accuracy of the diamond roller. At this time, the cleaning brush is set to clean the dust and impurities attached to the surface of the diamond roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 It is a three-dimensional diagram of the utility model;
[0018] Figure 2 It is a three-dimensional diagram of the pull plate in the utility model;
[0019] Figure 3 It is a three-dimensional diagram of the cleaning brush in the utility model;
[0020] Figure 4 It is a three-dimensional diagram of the rubber strip in the utility model;
[0021] Figure 5 It is a stereoscopic diagram of the rubber ball in the utility model.
[0022] Legend:
[0023] 1. Tool measuring instrument body; 11. Slide rail; 12. Sliding block; 13. Groove; 14. Bracket; 15. First spring; 16. Insert rod; 17. Pull plate; 18. Ring block; 19. Elastic plate; 2. Telescopic rod; 21. Second spring; 22. Cleaning brush; 23. Connecting rod; 3. Elastic sheet; 31. Rubber strip; 32. Anti-slip strip; 4. Vertical plate; 41. Scraper; 5. Elastic rod; 51. Rubber ball; 6. Magnetic block; 61. Magnetic strip; 7. Sponge strip. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Specific examples are given below.
[0026] See also Figure 1-Figure 4The utility model provides a diamond roller profile detection mechanism, including a tool measuring instrument body 1; a slide rail 11 is fixedly connected to the side wall of the tool measuring instrument body 1; a slider 12 is slidably connected to the inner side wall of the slide rail 11; a groove 13 is provided on the side wall of the slider 12; a bracket 14 is fixedly connected to the side wall of the slide rail 11; a first spring 15 is fixedly connected to the side wall of the bracket 14; an insertion rod 16 is fixedly connected to the end of the first spring 15; a pull plate 17 is fixedly connected to the side wall of the insertion rod 16; the pull plate 17 penetrates the wall of the bracket 14 and is slidably connected thereto; an annular block 18 is fixedly connected to the side wall of the slider 12; the annular A plurality of elastic plates 19 are fixedly connected to the side wall of the block 18; the elastic plates 19 are evenly distributed on the side wall of the annular block 18 and have the same structure; when in use, the staff holds the annular block 18, sets it on the side wall of the tool measuring instrument body 1, and places it above the tool measuring instrument body 1, and at the same time holds and pulls the pull plate 17, and when the insertion rod 16 is pulled to a certain extent, the slide rail 11 and the slider 12 are aligned, and the slider 12 is inserted into the inner wall of the slide rail 11 under mutual sliding cooperation. When fully inserted, the insertion rod 16 will correspond to the position of the groove 13, and at this time, the pull plate 17 is released, and the first spring 15 is released. The elastic force can push the rod 16 onto the side wall of the groove 13 and clamp the slider 12, so that the annular block 18 can be fixed. Then, when the diamond roller is placed on the top of the tool measuring instrument body 1, the diamond roller is first placed in the middle of the annular block 18 and pressed down. At this time, the elastic plates 19 around it can be stretched open by the extrusion of the diamond roller, and under the elastic force of the elastic plates 19, the diamond roller can be pushed to the middle of the elastic plates 19 around it. At the same time, the diamond roller will also slide to the middle of the elastic plates 19 around it, and then slide into the side wall of the tool measuring instrument body 1. Then, when it is necessary to When the diamond roller is tested, the slider 12 can be removed from the inner wall of the slide rail 11 by pulling the pulling plate 17. In this process, the existing difficulty in aligning the diamond roller with the fixing component on the side wall of the tool measuring instrument body 1 can be reduced, which makes it easy to bump when fixing, and the diamond roller is easily damaged, thereby causing a certain impact on the use effect of the diamond roller. At this time, the elastic plate 19 is set to play a positioning role when the diamond roller is fixed. At the same time, through the sliding cooperation between the slide rail 11 and the slider 12, the annular block 18 can be easily disassembled and collected when in use.
[0027] Further, such as Figure 3As shown, the side wall of the elastic plate 19 is fixedly connected with a telescopic rod 2; the outer side of the telescopic rod 2 is sleeved with a second spring 21; a plurality of cleaning brushes 22 are evenly fixedly connected to the ends of the telescopic rod 2 and the second spring 21; the side wall of the cleaning brush 22 is fixedly connected with a connecting rod 23; the connecting rod 23 penetrates the wall of the cleaning brush 22 and is fixedly connected thereto; when in use, when the diamond roller slides in the middle of the surrounding elastic plates 19, the end of the elastic plate 19 will contact the surface of the diamond roller, and the surface of the diamond roller will also contact the cleaning brush 22, and under the elastic force of the second spring 21, a certain reaction force can be applied to the cleaning brush 22, so that The cleaning brush 22 is in full contact with the surface of the diamond roller. At this time, the dust and impurities attached to the surface of the diamond roller can be swept away by the cleaning brush 22. At the same time, during the cleaning process of the cleaning brush 22, multiple cleaning brushes 22 can be fixedly connected by the connecting rod 23, so that they are concentrated together during cleaning to improve the cleaning effect. In this process, the dust and impurities attached to the surface of the diamond roller can be reduced, which makes it inconvenient to clean them, thereby causing a certain impact on the detection accuracy of the diamond roller. At this time, the cleaning brush 22 is set to clean the dust and impurities attached to the surface of the diamond roller.
[0028] Further, such as Figure 4 As shown, a pair of elastic sheets 3 are fixedly connected to the side walls of the pull plate 17; the elastic sheets 3 are symmetrically arranged on both sides of the pull plate 17 and have the same structure; a rubber strip 31 is fixedly connected to the side walls of the elastic sheets 3; a plurality of anti-slip strips 32 are evenly fixedly connected to the side walls of the pull plate 17; when in use, when the staff holds the pull plate 17, the fingers will first be placed on the side walls of the elastic sheets 3 and a certain force will be applied thereto, and by pressing the elastic sheets 3, a certain deformation can be generated, and when the elastic sheets 3 are pressed to a certain extent, the elastic force of the elastic sheets 3 will bounce off the surface of the fingers, separating them from the fingers, and then the fingers can be pressed on the side walls of the pull plate 17 through the elastic sheets 3, and when the elastic sheet 3 is bounced, the fingers will be pressed on the side walls of the pull plate 17. When the elastic sheet 3 presses the finger, the rubber strip 31 can block the direct contact between the elastic sheet 3 and the surface of the finger, thereby protecting the surface of the finger. At the same time, the finger will fully contact the anti-slip strip 32, and a certain friction will be generated by the mutual contact, and then the pull plate 17 can be pulled. In this process, the firmness between the finger and the pull plate 17 can be reduced when the finger is holding the pull plate 17 and pulling it, resulting in poor firmness, which makes it easy to slip off the side wall of the pull plate 17 when pulling. At this time, the finger is buckled by the elastic sheet 3, and a certain pressure is applied to the finger, thereby increasing the firmness of the finger on the side wall of the pull plate 17, and at the same time, the rubber strip 31 can prevent the finger from being scratched.
[0029] Further, such as Figure 4 , Figure 5As shown, the side wall of the slide rail 11 is fixedly connected to the vertical plate 4; the side wall of the vertical plate 4 is fixedly connected to the scraper 41; when in use, when the slider 12 is inserted into the inner wall of the slide rail 11, the side wall of the slider 12 will contact the scraper 41. At this time, when the slider 12 is inserted into the inner wall of the slide rail 11, the dust and impurities attached to the side wall of the slider 12 can be scraped off by the scraper 41. In this process, the dust and impurities attached to the side wall of the slider 12 can be reduced, which makes it inconvenient to clean them, resulting in the slider 12 being inserted into the slide rail 11. The sliding effect between the slider 12 and the slide rail 11 is affected. At this time, the scraper 41 is set to clean the dust and impurities attached to the side wall of the slider 12, thereby improving the sliding effect between the slide rail 11 and the slider 12.
[0030] Further, such as Figure 5 As shown, a pair of elastic rods 5 are fixedly connected to the side wall of the scraper 41; the elastic rods 5 are symmetrically arranged on both sides of the scraper 41 and have the same structure; a rubber ball 51 is fixedly connected to the end of the elastic rod 5; when the slider 12 is inserted into the slide rail 11, the side wall of the slider 12 will contact with the rubber ball 51 and generate a certain friction force, which can drive the rubber ball 51 to move under the action of the friction force, so that the elastic rod 5 produces a certain deformation, and then when the slider 12 is staggered with the rubber ball 51, the elastic force of the elastic rod 5 will drive the rubber ball 51 to swing back and forth. During the swinging process of the rubber ball 51, the side wall of the scraper 41 will be knocked. The vibration generated by the knocking can shake off the dust and impurities remaining on the side wall of the scraper 41. In this process, the scraper 41 can be reduced. After a long period of use, a lot of dust and impurities are easily left on the side wall of the scraper 41, which is inconvenient to clean, thereby causing a certain impact on the use effect of the scraper 41. At this time, the elastic rod 5 drives the rubber ball 51 to swing and knock on the scraper 41, thereby playing a role in cleaning the residual dust and impurities on the side wall of the scraper 41.
[0031] Further, such as Figure 4 As shown, the side wall of the slider 12 is fixed with a magnetic block 6; the side wall of the slide rail 11 is symmetrically fixed with a pair of magnetic strips 61; the magnetic block 6 and the magnetic strip 61 are magnetically connected; when in use, by inserting the slider 12 into the slide rail 11, the magnetic block 6 and the magnetic strip 61 will approach each other and produce an attraction effect, so that the slider 12 and the slide rail 11 can be quickly aligned, and then the slider 12 can be inserted into the slide rail 11. In this process, it can reduce the difficulty of aligning the two when the slider 12 is inserted into the slide rail 11, making the installation process more cumbersome, thereby increasing a certain amount of workload. At this time, through the attraction effect of the magnetic block 6 and the magnetic strip 61, the slider 12 can be positioned when it is inserted into the slide rail 11.
[0032] Further, such as Figure 3As shown, the side wall of the elastic plate 19 is fixedly connected with a sponge strip 7; when in use, when the diamond roller is placed in the middle of the elastic plates 19 around it, the elastic force of the elastic plates 19 can make the elastic plates 19 fully contact with the surface of the diamond roller. At this time, when the diamond roller slides on the side wall of the elastic plate 19, the sponge strip 7 can wipe off the dust and impurities attached to the surface of the diamond roller. In this process, the cleaning effect of the cleaning brush 22 can be reduced, resulting in some dust and impurities remaining on the surface of the diamond roller after the cleaning brush 22 finishes cleaning the diamond roller. At this time, the sponge strip 7 is set to further increase the cleaning effect of the dust and impurities remaining on the surface of the diamond roller.
[0033] Working principle: The staff holds the annular block 18, sets it on the side wall of the tool measuring instrument body 1, and places it above the tool measuring instrument body 1. At the same time, the pull plate 17 is held and pulled. When the insertion rod 16 is pulled to a certain extent, the slide rail 11 and the slider 12 are aligned. Under mutual sliding cooperation, the slider 12 is inserted into the inner wall of the slide rail 11. When it is fully inserted, the insertion rod 16 will correspond to the position of the groove 13. At this time, the pull plate 17 is released. The insertion rod 16 can be pushed onto the side wall of the groove 13 through the elastic force of the first spring 15, and the slider 12 is clamped, so that the annular block 18 can be fixed. After that, when the diamond roller is placed above the tool measuring instrument body 1, the diamond roller is first placed in the middle of the annular block 18 and pressed downward. At this time, the elastic plates 19 on all sides can be stretched open by the extrusion of the diamond roller, and under the elastic force of the elastic plates 19, the diamond roller can be pushed to the middle of the elastic plates 19 on all sides, and the diamond roller will also slide to the middle of the elastic plates 19 on all sides, and then slide into the side wall of the tool measuring instrument body 1. Later, when it is necessary to detect the diamond roller, the slider 12 can be removed from the inner wall of the slide rail 11 by pulling the pulling plate 17. During use, when the diamond roller slides in the middle of the elastic plates 19 on all sides, the end of the elastic plate 19 will contact the surface of the diamond roller, and the surface of the diamond roller will also contact the cleaning brush 22, and under the elastic force of the second spring 21, a certain reaction force can be applied to the cleaning brush 22 to make the cleaning brush 22 The brush 22 is in full contact with the surface of the diamond roller. At this time, the dust and impurities attached to the surface of the diamond roller can be swept away by the cleaning brush 22. At the same time, during the cleaning process, the cleaning brush 22 can be fixedly connected to multiple cleaning brushes 22 through the connecting rod 23, so that they can be concentrated together during cleaning to improve the cleaning effect. When in use, when the staff holds the pull plate 17, the fingers will first be placed on the side wall of the elastic sheet 3 and a certain force will be applied to it. By pressing the elastic sheet 3, a certain deformation can be generated. When the elastic sheet 3 is pressed to a certain extent, it will bounce off the finger surface under the elastic force of the elastic sheet 3, so that it is separated from the finger. After that, the finger can be pressed on the side wall of the pull plate 17 through the elastic sheet 3. When the elastic sheet 3 presses the finger The rubber strip 31 can prevent the elastic sheet 3 from directly contacting the finger surface, thereby protecting the finger surface. At the same time, the finger will fully contact the anti-slip strip 32, and a certain friction force will be generated by the mutual contact. Then, the pull plate 17 can be pulled. When in use, when the slider 12 is inserted into the inner wall of the slide rail 11, the side wall of the slider 12 will contact the scraper 41. At this time, when the slider 12 is inserted into the inner wall of the slide rail 11, the dust and impurities attached to the side wall of the slider 12 can be scraped off by the scraper 41. When in use, when the slider 12 is inserted into the slide rail 11, the side wall of the slider 12 will contact the rubber ball 51 and generate a certain friction force. Under the action of the friction force, the rubber ball 51 can be driven to move, causing the elastic rod 5 to have a certain deformation.After that, when the slider 12 and the rubber ball 51 are offset, the elastic force of the elastic rod 5 drives the rubber ball 51 to swing back and forth. During the swinging process of the rubber ball 51, the side wall of the scraper 41 is knocked. The vibration generated by the knocking can shake off the dust and impurities remaining on the side wall of the scraper 41. When in use, when the slider 12 is inserted into the slide rail 11, the magnetic block 6 and the magnetic strip 61 will approach each other and produce an attraction effect, so that the slider 12 and the slide rail 11 can be quickly aligned, and then the slider 12 can be inserted into the slide rail 11. When in use, when the diamond roller is placed in the middle of the surrounding elastic plates 19, the elastic force of the elastic plates 19 can make the elastic plates 19 fully contact with the surface of the diamond roller. At this time, when the diamond roller slides on the side wall of the elastic plate 19, the sponge strip 7 can wipe off the dust and impurities attached to the surface of the diamond roller.
[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A diamond roller profile detection mechanism, comprising a tool measuring instrument body (1); characterized in that: The side wall of the tool measuring instrument body (1) is fixedly connected with a slide rail (11); the inner side wall of the slide rail (11) is slidably connected with a slider (12); the side wall of the slider (12) is provided with a groove (13); the side wall of the slide rail (11) is fixedly connected with a bracket (14); the side wall of the bracket (14) is fixedly connected with a first spring (15); the end of the first spring (15) is fixedly connected with an insertion rod (16); the side wall of the insertion rod (16) is fixedly connected with a pull plate (17); the pull plate (17) passes through the wall of the bracket (14) and is slidably connected thereto; the side wall of the slider (12) is fixedly connected with an annular block (18); the side wall of the annular block (18) is fixedly connected with a plurality of elastic plates (19); the elastic plates (19) are evenly distributed on the side wall of the annular block (18) and have the same structure.
2. A diamond roller profile detection mechanism as claimed in claim 1, characterized in that: A telescopic rod (2) is fixedly connected to the side wall of the elastic plate (19); a second spring (21) is sleeved on the outside of the telescopic rod (2); a plurality of cleaning brushes (22) are evenly fixedly connected to the ends of the telescopic rod (2) and the second spring (21); a connecting rod (23) is fixedly connected to the side wall of the cleaning brush (22); the connecting rod (23) passes through the wall of the cleaning brush (22) and is fixedly connected thereto.
3. A diamond roller profile detection mechanism as claimed in claim 1, characterized in that: A pair of elastic sheets (3) are fixedly connected to the side walls of the pull plate (17); the elastic sheets (3) are symmetrically arranged on both sides of the pull plate (17) and have the same structure; a rubber strip (31) is fixedly connected to the side walls of the elastic sheet (3); and a plurality of anti-slip strips (32) are evenly fixedly connected to the side walls of the pull plate (17).
4. A diamond roller profile detection mechanism as claimed in claim 1, characterized in that: The side wall of the slide rail (11) is fixedly connected to a vertical plate (4); the side wall of the vertical plate (4) is fixedly connected to a scraper (41).
5. A diamond roller profile detection mechanism as claimed in claim 4, characterized in that: A pair of elastic rods (5) are fixedly connected to the side walls of the scraper (41); the elastic rods (5) are symmetrically arranged on both sides of the scraper (41) and have the same structure; and rubber balls (51) are fixedly connected to the ends of the elastic rods (5).
6. A diamond roller profile detection mechanism as claimed in claim 1, characterized in that: A magnetic block (6) is fixedly connected to the side wall of the slider (12); a pair of magnetic strips (61) are symmetrically fixedly connected to the side wall of the slide rail (11); and the magnetic block (6) and the magnetic strips (61) are magnetically connected.
7. A diamond roller profile detection mechanism as claimed in claim 1, characterized in that: The side wall of the elastic plate (19) is fixedly connected with a sponge strip (7).