A surface flatness detection device for an automobile injection mold

Abstract

The application discloses a surface flatness detection device for an automobile injection mold and relates to the technical field of automobile injection molds.The surface flatness detection device for the automobile injection mold comprises a detection frame, the lower surface of the detection frame is fixedly connected with a motor, the two side output ends of the motor are fixedly connected with threaded rods, the outer sides of the threaded rods are threadedly connected with threaded blocks, and the upper end of the threaded block is fixedly connected with a limiting frame.The surface flatness detection device for the automobile injection mold, when the upper surface of the mold is convex upward, the mark block arranged at the upper end of the roller can be in contact with the pasted paper, so that marks are left, and the staff can know the position of the uneven mold; when the upper surface of the mold is concave inward, the mark powder in the mark soft cavity can be sprayed outward through the upper arranged nozzle, so that the recessed position is marked, and through the two different marking modes, the staff can more intuitively know whether the mold is flat.

Description

Technical Field

[0001] This invention relates to the field of automotive injection mold technology, specifically to a surface flatness detection device for automotive injection molds. Background Technology

[0002] Automotive injection molds are injection molds specifically used to produce automotive parts. They form automotive parts of the desired shape by injecting molten plastic. Therefore, in order to produce automotive parts more efficiently, the flatness requirements of the mold are relatively high.

[0003] Prior art 1 (Chinese Patent Publication No.: CN117073613A, Publication Date: 2023-11-17) discloses a device for detecting the flatness of automotive molds, relating to the field of automotive mold technology. This device includes a testing platform, a positioning block fixedly mounted on the top of the testing platform, a mold body fixedly mounted on the top of the testing platform, and a guide frame fixedly mounted on the inner top of the testing platform. The device uses a rubber roller to fit against the side of the mold body. When unevenness occurs on the side of the mold body, the rubber roller on the outer side of the testing wheel deforms. The rubber roller and the annular groove form a constant-pressure sealed environment. When the rubber roller is compressed and deformed, the pressure inside the sealed cavity formed by the annular groove and the rubber roller changes. This pressure change on the inner wall is detected by a pressure sensor, and the data detected by the pressure sensor is transmitted to the testing platform to determine the degree of deformation of the side of the mold body.

[0004] Prior art 2 (Chinese Patent No. CN216049640U, published on March 15, 2022) discloses a surface flatness detection device for mold production, belonging to the field of mold production. It includes a detection box, with a support leg fixedly installed at the bottom of the detection box. A second electric push rod is fixedly installed at the top of the inner cavity of the detection box. A mounting plate is fixedly connected to the bottom of the second electric push rod, and a flatness detection mechanism is fixedly connected to the bottom of the mounting plate. The foreign matter cleaning mechanism includes a first electric push rod, a wiping plate, and a wiping pad. By setting up the flatness detection mechanism, the flatness of the mold surface can be judged by whether the marks drawn by the two sets of detection mechanisms are complete during mold surface flatness detection. Compared with traditional methods, this is simpler, more convenient, and saves more manpower and resources, making it worthy of promotion and use.

[0005] While existing technologies can inspect the flatness of molds, they cannot clean the mold surface during inspection. Dust can interfere with the flatness inspection to some extent. In addition, existing equipment only provides feedback on the flatness through a single handwriting, which cannot differentiate between the concave and convex features of the mold.

[0006] Therefore, we propose a surface flatness detection device for automotive injection molds to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a surface flatness detection device for automotive injection molds, in order to solve the problems mentioned in the background art. Currently available devices cannot clean the mold surface during detection, and dust can interfere with flatness detection to some extent. In addition, existing devices only provide feedback through a single handwriting when detecting flatness, which cannot reflect the concavity or convexity of the mold.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a surface flatness detection device for automotive injection molds, comprising a detection frame, a motor fixedly connected to the lower surface of the detection frame, and threaded rods fixedly connected to both output ends of the motor, with threaded blocks threadedly connected to the outer sides of the threaded rods, and a limit frame fixedly connected to the upper end of the threaded blocks, with an abutment rod fixedly connected to the inner side of the limit frame, and a linkage pressure plate provided between the two sets of limit frames, a detection mechanism for detecting flatness being provided on the lower side of the linkage pressure plate, the detection mechanism including a detection rod, the flatness being fed back by the up-and-down movement of the detection rod, and an adjustment mechanism for adjusting the position of the detection mechanism being provided between the side of the linkage pressure plate and the abutment rod.

[0009] Preferably, a fixing plate is fixedly connected to the inner side of the detection frame, and a sliding groove is provided on the lower surface of the fixing plate, and a slider is provided on the inner side of the sliding groove. The slider is fixedly connected to the upper side of the limiting frame.

[0010] Preferably, the lower inner side of the limiting frame is provided with a storage groove, and a damping rod is fixedly connected to the inner side of the storage groove. A soft pad is fixedly connected to the outer end of the damping rod. The inner side of the soft pad is nested and connected to the inner side of the storage groove, and a first spring is fixedly connected between the inner side of the soft pad and the inside of the storage groove.

[0011] Preferably, the adjustment mechanism includes a limiting rod, which is fixedly connected to the lower surface of the side of the detection frame. An inclined block is nested on the outer side of the limiting rod, and a return spring is fixedly connected between the lower end of the inclined block and the lower end of the limiting rod. A linkage pressure plate is fixedly connected to the inner side of the inclined block, and a dust removal airbag is fixedly connected to the side of the detection frame.

[0012] Preferably, two sets of inclined blocks are symmetrically arranged about the center point of the detection frame, and two sets of cleaning airbags are arranged about the center point of the detection frame, with the cleaning airbags located below the linkage pressure plate.

[0013] Preferably, the inner end of the abutment rod is in contact with the inclined portion of the inclined block, and the inclined block forms a sliding structure with the limiting rod through the abutment rod, and the inclined block forms an elastic structure with the limiting rod through the return spring.

[0014] Preferably, the detection mechanism includes a limiting plate, which is fixedly connected to the lower surface of the linkage pressure plate. The limiting plate has a movable groove, and a movable plate is nested on the outer side of the limiting plate. A handle is fixedly connected to the outer side of the movable plate. A detection rod is nested inside the movable plate, and a connecting plate is fixedly connected to the outer side of the detection rod. An adjusting spring is fixedly connected between the lower surface of the connecting plate and the upper surface of the limiting plate. A marking block is provided at the upper end of the detection rod. An abutment plate is fixedly connected to the movable plate, and a marking soft cavity is fixedly connected to the abutment plate. A rotating rod is hinged to the outer side of the marking block, and a pressing block is hinged to the other end of the rotating rod. An auxiliary inner rod is fixedly connected to the side of the detection rod, and the pressing block is nested on the outer side of the auxiliary inner rod.

[0015] Preferably, the detection rod forms a sliding structure through the movable plate and the movable groove, and the connecting plate forms an elastic structure with the movable plate through the adjusting spring, and a roller is fixedly connected to the lower end of the detection rod.

[0016] Preferably, the rotating rod forms a rotating structure with the extrusion block via the marking block, and the extrusion block forms a sliding structure with the auxiliary inner rod via the rotating rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The user places the mold to be inspected on the inspection frame and starts the motor. The motor drives the threaded rod to rotate, and the threaded rod, under the action of the threaded connection, drives the limit frame to move through the threaded block. When the limit frame moves, the slider at its top moves along the inside of the slide groove to limit the movement, thereby further improving the stability of the limit frame's movement. The limit frame clamps and limits the mold, preventing the mold from shifting during inspection.

[0018] When the limiting frame moves to clamp the mold, the soft pad on its inner side will come into contact with the mold. At the same time, the force generated when the soft pad comes into contact with the mold will squeeze and resist the soft pad, causing the soft pad to move inward into the receiving groove. At this time, the soft pad simultaneously squeezes the first spring and the damping rod. With the assistance of the first spring and the damping rod, the impact force of the soft pad on the mold clamping can be reduced, thereby preventing the clamping force from being too large and causing damage to the mold.

[0019] When the limit frame moves, it will synchronously drive the abutment rod to move. At this time, the abutment rod moves along the inclined part of the inclined block and abuts the inclined block, causing the inclined block to move downward. When the inclined block moves downward, it will synchronously drive the linkage pressure plate to move downward. At this time, the linkage pressure plate can drive the detection mechanism to move downward synchronously, so that the detection mechanism can better perform detection operations on the mold surface.

[0020] When the linkage pressure plate moves downward, its side will squeeze the cleaning air bag, causing the cleaning air bag to undergo elastic deformation. At this time, the gas inside the cleaning air bag will be ejected outward through its tortuous jet pipe to clean the mold surface, thereby reducing the possibility of impurities adhering to the mold surface and affecting the subsequent flatness inspection.

[0021] When performing flatness testing, users can place paper on the lower surface of the linkage pressure plate. After adjusting the position of the adjustment mechanism, the user can manually pull the handle. This will move the movable plate, which in turn moves the detection rod laterally along the movable groove. The roller on the lower surface of the detection rod will roll against the upper surface of the mold. When the upper surface of the mold bulges upward, the roller will push against the detection rod and move it upward. At this time, the marking block on the upper end of the roller will contact the paper and leave a mark, making it easy for staff to know the location of the mold unevenness. When the upper surface of the mold is concave inward, the detection rod will move downward under the elastic force of the adjusting spring. This will cause the detection rod to rotate, and the extrusion block will move outward along the auxiliary inner rod under the action of the rotating rod, extruding the marking cavity. The marking powder inside the marking cavity will be sprayed outward through the nozzle set above, thus marking the concave area. Through these two different marking methods, staff can more intuitively see whether the mold is flat. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the detection frame of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the threaded rod of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting frame of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the inclined block of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the dust removal airbag of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the linkage pressure plate of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the movable plate of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the detection rod of the present invention.

[0023] In the diagram: 1. Detection frame; 2. Motor; 3. Threaded rod; 4. Threaded block; 5. Limiting frame; 6. Slide groove; 7. Slider; 8. Soft pad; 9. First spring; 10. Damping rod; 11. Dust-clearing airbag; 12. Linkage pressure plate; 13. Limiting rod; 14. Inclined block; 15. Reset spring; 16. Abutment rod; 17. Fixing plate; 18. Storage slot; 19. Handle; 20. Movable slot; 21. Movable plate; 22. Detection rod; 23. Roller; 24. Limiting plate; 25. Abutment plate; 26. Rotating rod; 27. Adjusting spring; 28. Squeezing block; 29. ​​Marking soft cavity; 30. Marking block; 31. Connecting plate; 32. Auxiliary inner rod. Detailed Implementation

[0024] 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 scope of protection of the present invention.

[0025] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides the following technical solution: a surface flatness detection device for automotive injection molds, comprising a soft pad 8, which prevents excessive clamping force from damaging the mold; a motor 2 is fixedly connected to the lower surface of the detection frame 1, and threaded rods 3 are fixedly connected to both output ends of the motor 2; threaded blocks 4 are threadedly connected to the outer side of the threaded rods 3, and a limit frame 5 is fixedly connected to the upper end of the threaded blocks 4; and a limit frame 5 is fixedly connected to the inner side of the detection frame 1. There is a fixed plate 17, and a groove 6 is provided on the lower surface of the fixed plate 17. A slider 7 is provided on the inner side of the groove 6. The slider 7 is fixedly connected to the upper side of the limiting frame 5. A storage groove 18 is provided on the inner side of the lower end of the limiting frame 5. A damping rod 10 is fixedly connected to the inner side of the storage groove 18. A soft pad 8 is fixedly connected to the outer end of the damping rod 10. The inner side of the soft pad 8 is nested and connected to the inner side of the storage groove 18. A first spring 9 is fixedly connected between the inner side of the soft pad 8 and the inside of the storage groove 18.

[0026] The user places the mold to be tested on the testing frame 1. The motor 2 is then started, driving the threaded rod 3 to rotate. Under the action of the threaded connection, the threaded rod 3 moves the limiting frame 5 via the threaded block 4. As the limiting frame 5 moves, the slider 7 at its top moves along the inside of the groove 6, further improving the stability of the limiting frame 5's movement. The limiting frame 5 clamps and limits the mold, preventing possible displacement during testing. When the limiting frame 5 clamps the mold, the soft pad 8 on its inner side contacts the mold. The force generated when the soft pad 8 contacts the mold compresses and pushes against the soft pad 8, causing it to move inwards towards the receiving groove 18. Simultaneously, the soft pad 8 compresses the first spring 9 and the damping rod 10. With the assistance of the first spring 9 and the damping rod 10, the impact force of the soft pad 8 on the mold clamping is reduced, preventing excessive clamping force that could damage the mold.

[0027] Example 2: Figure 1 , Figure 5 and Figure 6 The present invention provides the following technical solution: a surface flatness detection device for automotive injection molds, which discloses an adjustment mechanism. This adjustment mechanism can also clean the mold while simultaneously moving the detection mechanism downwards. An adjustment mechanism for adjusting the position of the detection mechanism is provided between the side of the linkage pressure plate 12 and the contact rod 16. The adjustment mechanism includes a limit rod 13, which is fixedly connected to the lower surface of the side of the detection frame 1. An inclined block 14 is nested around the outer side of the limit rod 13, and the lower end of the inclined block 14 is fixedly connected to the lower end of the limit rod 13. The inner side of the tilting block 14 is fixedly connected to the reset spring 15 and the linkage pressure plate 12. The side of the detection frame 1 is fixedly connected to the cleaning airbag 11. Two sets of tilting blocks 14 are symmetrically arranged about the center point of the detection frame 1. Two sets of cleaning airbags 11 are arranged about the center point of the detection frame 1. The cleaning airbags 11 are located below the linkage pressure plate 12. The inner end of the contact rod 16 is in contact with the tilting part of the tilting block 14. The tilting block 14 forms a sliding structure with the limiting rod 13 through the contact rod 16. The tilting block 14 forms an elastic structure with the limiting rod 13 through the reset spring 15.

[0028] When the limit frame 5 moves, it will synchronously drive the abutment rod 16 to move. At this time, the abutment rod 16 moves along the inclined part of the inclined block 14 and abuts the inclined block 14, causing the inclined block 14 to move downward. When the inclined block 14 moves downward, it will synchronously drive the linkage pressure plate 12 to move downward. At this time, the linkage pressure plate 12 can drive the detection mechanism to move downward synchronously, so that the detection mechanism can better perform detection work on the mold surface. When the linkage pressure plate 12 moves downward, its side will squeeze the cleaning air bag 11, so that the cleaning air bag 11 will undergo elastic deformation. At this time, the gas inside the cleaning air bag 11 will be ejected outward through its tortuous jet pipe to clean the mold surface, thereby reducing the possibility of impurities adhering to the mold surface and affecting the subsequent flatness detection.

[0029] Example 3: Figure 1 , Figures 7-10 The present invention provides the following technical solution: a surface flatness detection device for automotive injection molds, disclosing a detection mechanism. The detection mechanism uses two different marking methods to allow workers to more intuitively see whether the mold is flat: a contact rod 16 is fixedly connected to the inner side of a limiting frame 5, and a linkage pressure plate 12 is provided between the two sets of limiting frames 5. A detection mechanism for detecting flatness is provided on the lower side of the linkage pressure plate 12. The detection mechanism includes a detection rod 22, and the flatness can be fed back by the up-and-down movement of the detection rod 22. The detection mechanism includes a limiting plate 24, which is fixedly connected to the lower surface of the linkage pressure plate 12. A movable groove 20 is provided on the limiting plate 24, and a movable plate 21 is nested on the outer side of the limiting plate 24. A handle 19 is fixedly connected to the outer side of the movable plate 21, and a detection rod 22 is nested inside the movable plate 21. A connecting plate 31 is fixedly connected to the outer side, and an adjusting spring 27 is fixedly connected between the lower surface of the connecting plate 31 and the upper surface of the limiting plate 24. A marking block 30 is provided at the upper end of the detection rod 22. An abutment plate 25 is fixedly connected to the movable plate 21, and a marking soft cavity 29 is fixedly connected to the abutment plate 25. A rotating rod 26 is hinged to the outer side of the marking block 30, and a pressing block 28 is hinged to the other end of the rotating rod 26. An auxiliary inner rod 32 is fixedly connected to the side of the detection rod 22, and the pressing block 28 is nested on the outer side of the auxiliary inner rod 32. The detection rod 22 forms a sliding structure with the movable plate 21 and the movable groove 20. The connecting plate 31 forms an elastic structure with the movable plate 21 through the adjusting spring 27. A roller 23 is fixedly connected to the lower end of the detection rod 22. The rotating rod 26 forms a rotating structure with the pressing block 28 through the marking block 30. The pressing block 28 forms a sliding structure with the auxiliary inner rod 32 through the rotating rod 26.

[0030] When performing a flatness test, the user can place a piece of paper on the lower surface of the linkage pressure plate 12. After the adjustment mechanism has adjusted the position, the user can manually pull the handle 19. At this time, the handle 19 can drive the movable plate 21 to move. When the movable plate 21 moves, it will simultaneously drive the detection rod 22 to move laterally along the movable groove 20. At this time, the roller 23 on the lower surface of the detection rod 22 can press against the upper surface of the mold and roll. When the upper surface of the mold bulges upward, it will move upward by the roller 23 against the detection rod 22. At this time, the marking block 30 set at the upper end of the roller 23 can contact the pasted paper, thereby leaving a mark. The markings help staff identify uneven areas in the mold. When the upper surface of the mold is concave, the detection rod 22 moves downward under the elastic force of the adjusting spring 27. At this time, the detection rod 22 drives the rotating rod 26 to rotate. The extrusion block 28 moves outward along the auxiliary inner rod 32 under the action of the rotating rod 26, extruding the marking cavity 29. The marking powder inside the marking cavity 29 is then sprayed outward through the nozzle set above, thus marking the concave area. Through these two different marking methods, staff can more intuitively see whether the mold is flat.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface flatness detection device for automotive injection molds, comprising a detection frame (1), wherein a motor (2) is fixedly connected to the lower surface of the detection frame (1), and threaded rods (3) are fixedly connected to both output ends of the motor (2), and threaded blocks (4) are threadedly connected to the outer side of the threaded rods (3), while a limit frame (5) is fixedly connected to the upper end of the threaded blocks (4), characterized in that: The inner side of the limiting frame (5) is fixedly connected with an abutment rod (16), and a linkage pressure plate (12) is provided between the two sets of limiting frames (5). A detection mechanism for detecting flatness is provided on the lower side of the linkage pressure plate (12). The detection mechanism includes a detection rod (22). The flatness can be fed back by the up and down movement of the detection rod (22). An adjustment mechanism for adjusting the position of the detection mechanism is provided between the side of the linkage pressure plate (12) and the abutment rod (16). The detection mechanism includes a limiting plate (24), which is fixedly connected to the lower surface of the linkage pressure plate (12). A movable groove (20) is provided on the limiting plate (24). A movable plate (21) is nested around the limiting plate (24), and a handle (19) is fixedly connected to the outer side of the movable plate (21). A detection rod (22) is nested inside the movable plate (21), and a connecting plate (31) is fixedly connected to the outer side of the detection rod (22). An adjusting spring (27) is fixedly connected between the lower surface of the connecting plate (31) and the upper surface of the limiting plate (24). A marking block (30) is provided at the upper end of the detection rod (22). A contact plate (25) is fixedly connected to the movable plate (21), and a... The marking soft cavity (29) is hinged to the outer side of the marking block (30) with a rotating rod (26), and the other end of the rotating rod (26) is hinged to a pressing block (28). The side of the detection rod (22) is fixedly connected to an auxiliary inner rod (32), and the pressing block (28) is nested on the outer side of the auxiliary inner rod (32). The detection rod (22) forms a sliding structure with the movable plate (21) and the movable groove (20). The connecting plate (31) forms an elastic structure with the movable plate (21) through the adjusting spring (27). The lower end of the detection rod (22) is fixedly connected to a roller (23). The rotating rod (26) forms a rotating structure with the pressing block (28) through the marking block (30). The pressing block (28) forms a sliding structure with the auxiliary inner rod (32) through the rotating rod (26).

2. The surface flatness detection device for automotive injection molds according to claim 1, characterized in that: The inner side of the detection frame (1) is fixedly connected to a fixing plate (17), and a groove (6) is provided on the lower surface of the fixing plate (17), and a slider (7) is provided on the inner side of the groove (6), while the slider (7) is fixedly connected to the upper side of the limiting frame (5).

3. The surface flatness detection device for automotive injection molds according to claim 2, characterized in that: The lower inner side of the limiting frame (5) is provided with a storage groove (18), and a damping rod (10) is fixedly connected to the inner side of the storage groove (18). A soft pad (8) is fixedly connected to the outer end of the damping rod (10). The inner side of the soft pad (8) is nested and connected to the inner side of the storage groove (18), and a first spring (9) is fixedly connected between the inner side of the soft pad (8) and the inside of the storage groove (18).

4. The surface flatness detection device for automotive injection molds according to claim 1, characterized in that: The adjustment mechanism includes a limiting rod (13), which is fixedly connected to the lower side surface of the detection frame (1). An inclined block (14) is nested on the outer side of the limiting rod (13), and a return spring (15) is fixedly connected between the lower end of the inclined block (14) and the lower end of the limiting rod (13). A linkage pressure plate (12) is fixedly connected to the inner side of the inclined block (14), and a dust removal airbag (11) is fixedly connected to the side of the detection frame (1).

5. The surface flatness detection device for automotive injection molds according to claim 4, characterized in that: Two sets of inclined blocks (14) are symmetrically arranged about the center point of the detection frame (1), and two sets of cleaning airbags (11) are arranged about the center point of the detection frame (1) in front and behind. The cleaning airbags (11) are located below the linkage pressure plate (12).

6. The surface flatness detection device for automotive injection molds according to claim 4, characterized in that: The inner end of the abutment rod (16) is in contact with the inclined portion of the inclined block (14), and the inclined block (14) forms a sliding structure with the limiting rod (13) through the abutment rod (16), and the inclined block (14) forms an elastic structure with the limiting rod (13) through the return spring (15).

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