Section punching die for sealing strip of car trunk
By combining movable clamping rollers and fixed conveyor rollers, along with a vertically moving punching blade and telescopic device, the problem of low punching efficiency of sealing strips is solved, achieving efficient fixed-length cutting and conveying, which is suitable for processing automotive trunk sealing strips.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-17
AI Technical Summary
The punching efficiency of existing automotive trunk sealing strips is low, especially when it is necessary to punch to a fixed length according to the vehicle size, the reciprocating traction mechanism leads to reduced efficiency.
The system employs a combination of movable clamping wheels and fixed conveying wheels with a vertically moving punching blade. The end positioning plate and telescopic device improve the conveying and punching efficiency of the sealing strip, and the position of the punching blade can be adjusted by a scale plate to accommodate different length requirements.
It improves the punching efficiency of sealing strips, realizes efficient conveying and fixed-length cutting of sealing strips, and is suitable for the processing of sealing strips for different vehicle models.
Smart Images

Figure CN223998618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punching equipment technology, specifically a punching die for the cross-section of a car trunk sealing strip. Background Technology
[0002] The trunk of a car is usually called the rear trunk. A sealing strip is needed in the trunk area. The sealing strip is waterproof, dustproof and soundproof. During production, the sealing strip needs to be punched according to the custom size of the sealing strip.
[0003] A search revealed a patent, CN219543480U, which discloses a cutting mold for a car rear door sealing strip. The mold includes a base plate, a mounting plate, and a cutting mechanism. The mounting plate is positioned on the base plate in a left-right direction. A movable module is mounted on the base plate in the same direction, and a traction mechanism is connected to the movable module. The traction mechanism fixes one end of the sealing strip and pulls it to the right via the movable module. A pressing mechanism is positioned on the base plate opposite to the traction mechanism. The sealing strip can first pass through a sealing strip limiting plate, then through a trimming blade, where it is cut off. The cutting mechanism can cut the trimmed sealing strip to the required length. The sealing strip limiting plate and trimming blade can be replaced according to the desired sealing strip shape. This cutting device is suitable for various cavity conditions and eliminates the need for repeated cutting mold adjustments, thus significantly improving cutting efficiency.
[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:
[0005] In reality, sealing strips need to be punched to a fixed length according to vehicle dimensions, etc. The aforementioned comparative document uses a reciprocating traction mechanism to pull the sealing strip and a cutting blade to punch it. Since the traction mechanism needs to reciprocate once each punching, the efficiency of punching the sealing strip is reduced. Therefore, there is an urgent need in the field to improve the punching die for the cross-section of automotive trunk sealing strips to solve the defects of the prior art. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a punching die for the cross-section of automotive trunk sealing strips, thereby improving the efficiency of punching sealing strips.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a punching die for the cross-section of an automotive trunk sealing strip, comprising a supporting base plate, a supporting side plate fixedly mounted on the side of the supporting base plate, a supporting column capable of displacement adjustment on the upper part of the supporting base plate, a punching blade capable of vertical movement on one side of the supporting column, a plurality of fixed conveying wheels of the same horizontal level rotatably connected to one side of the supporting side plate, a plurality of first drive motors for driving the fixed conveying wheels to rotate fixedly mounted on one side of the supporting side plate, a plurality of movable clamping wheels adapted to the position of the fixed conveying wheels and capable of vertical movement on the side of the supporting side plate, and an end positioning plate for end positioning on one side of the supporting side plate.
[0008] Preferably, one end of the punching cutter is provided with a connecting rod, one end of the connecting rod is fixedly installed with a first adjusting block, one side of the bearing column is provided with a first adjusting groove adapted to the first adjusting block, a first driving screw threadedly connected to the first adjusting block is rotatably connected in the first adjusting groove, and a second driving motor for driving the first driving screw to rotate is fixedly installed at the upper end of the bearing column.
[0009] Preferably, a second adjusting block is fixedly installed at the lower end of the support column, a second adjusting groove adapted to the second adjusting block is opened on the upper part of the support base plate, a second driving screw threadedly connected to the second adjusting block is rotatably connected in the second adjusting groove, and a third driving motor for driving the second driving screw to rotate is fixedly installed on one side of the support base plate.
[0010] Preferably, several fourth drive motors are fixedly installed on the upper side of the bearing side plate, and a third adjustment block is rotatably connected to one end of the movable clamping wheel. Several third adjustment slots adapted to the third adjustment blocks are opened on the side of the bearing side plate. A third drive screw threadedly connected to the third adjustment block is rotatably connected in the third adjustment slot. The fourth drive motors are used to drive the third drive screws to rotate.
[0011] Preferably, a number of pallets located between and adapted to the fixed conveyor wheels are fixedly installed on the side of the bearing side plate, and a number of telescopic devices with telescopic effect are fixedly installed on one side of the bearing side plate. The telescopic end of the telescopic device passes through the bearing side plate and is fixedly installed with a push plate. The push plate abuts against the side of the pallet. A conveying device adapted to the fixed conveyor wheels and used for conveying is provided on the bearing base plate.
[0012] Preferably, one end of the punching cutter is fixedly installed with a plug-in block, one end of the connecting rod is provided with a plug-in groove that matches the plug-in block, and a fixing bolt with one end threadedly connected to the side of the plug-in block passes through one side of the connecting rod.
[0013] Preferably, a scale plate is fixedly installed on the upper part of the support substrate, the scale plate is adapted to the support column and has a scale.
[0014] To address the shortcomings of existing technologies, this utility model provides a punching die for the cross-section of an automotive trunk sealing strip, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:
[0015] 1. In this utility model, the sealing strip is conveyed by a movable pressing wheel and a fixed conveying wheel for driving, and the sealing strip is punched by a punching blade that can move up and down. With the help of the end positioning plate, the efficiency of punching the sealing strip is improved.
[0016] 2. In this utility model, the sealing strip is supported by a pallet, and the punched sealing strip is pushed onto the conveying device by a telescopic device to move the push plate. The conveying device then transports the punched sealing strip to the next processing station, thereby improving the punching efficiency of the sealing strip.
[0017] 3. In this utility model, the position of the bearing column on the bearing substrate can be adjusted by the drive of the third drive motor, and the scale on the scale plate makes it easy to punch sealing strips of different lengths.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a side view of the load-bearing side plate in this utility model.
[0022] Figure 3 This is a partial cross-sectional structural schematic diagram of the load-bearing column in this utility model;
[0023] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle;
[0024] Figure 5 for Figure 1 Enlarged structural diagram at point B;
[0025] Figure 6 for Figure 3 Enlarged structural diagram at point C.
[0026] In the diagram: 1. Supporting base plate; 2. Supporting side plate; 3. Supporting column; 4. Punching blade; 5. Fixed conveyor wheel; 6. First drive motor; 7. Movable clamping wheel; 8. End positioning plate; 9. Connecting rod; 10. First adjusting block; 11. First adjusting groove; 12. Second drive motor; 13. First drive screw; 14. Second adjusting block; 15. Second adjusting groove; 16. Third drive motor; 17. Second drive screw; 18. Fourth drive motor; 19. Third adjusting block; 20. Third adjusting groove; 21. Third drive screw; 22. Telescopic device; 23. Push plate; 24. Support plate; 25. Insertion block; 26. Insertion groove; 27. Fixing bolt; 28. Scale plate; 29. Conveying device. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-6 A punching die for a car trunk sealing strip includes a support base plate 1, a support side plate 2 fixedly mounted on the side of the support base plate 1, a support column 3 with adjustable displacement on the upper part of the support base plate 1, a punching blade 4 with vertical movement on one side of the support column 3, several fixed conveyor wheels 5 of the same horizontal level rotatably connected to one side of the support side plate 2, several first drive motors 6 for driving the fixed conveyor wheels 5 to rotate fixedly mounted on one side of the support side plate 2, several movable clamping wheels 7 adapted to the position of the fixed conveyor wheels 5 and capable of vertical movement on the side of the support side plate 2, an end positioning plate 8 for end positioning on one side of the support side plate 2, a connecting rod 9 at one end of the punching blade 4, and a first adjustment... The segment 10 has a first adjustment groove 11 on one side of the bearing column 3 that is adapted to the first adjustment block 10. A first drive screw 13 that is threadedly connected to the first adjustment block 10 is rotatably connected in the first adjustment groove 11. A second drive motor 12 for driving the first drive screw 13 to rotate is fixedly installed on the upper end of the bearing column 3. Several fourth drive motors 18 are fixedly installed on the upper side of the bearing side plate 2. A third adjustment block 19 is rotatably connected to one end of the movable clamping wheel 7. Several third adjustment grooves 20 that are adapted to the third adjustment block 19 are opened on the side of the bearing side plate 2. A third drive screw 21 that is threadedly connected to the third adjustment block 19 is rotatably connected in the third adjustment groove 20. The fourth drive motor 18 is used to drive the third drive screw 21 to rotate.
[0029] Specifically, when punching is required for the sealing strip installed in the trunk of a car, the sealing strip is placed on top of several fixed conveyor wheels 5. Several synchronous fourth drive motors 18 are started. The output of the fourth drive motors 18 drives the third drive screw 21 to rotate. When the third drive screw 21 rotates, it drives the third adjusting block 19 to move down in the third adjusting groove 20. The third adjusting block 19 drives the movable pressing wheel 7 to move down. The movable pressing wheel 7 presses the sealing strip between the movable pressing wheel 7 and the fixed conveyor wheels 5. Then, several synchronous first drive motors 6 are started. The output of the first drive motors 6 drives the fixed conveyor wheels 5 to rotate, thus punching the sealing strip. When the end of the sealing strip abuts against the end positioning plate 8, the conveying of the sealing strip stops, the second drive motor 12 is turned on, and the output end of the second drive motor 12 drives the first drive screw 13 to rotate. The rotation of the first drive screw 13 drives the first adjusting block 10 to slide in the first adjusting groove 11. The first adjusting block 10 drives the connecting rod 9 to move, and the connecting rod 9 drives the punching cutter 4 to move down to cut the sealing strip. Then, the movable pressing wheel 7 above the cut sealing strip moves up, so that the punched sealing strip can be removed. At the same time, the uncut sealing strip is transported again through the fixed conveying wheel 5, which improves the efficiency of punching the sealing strip.
[0030] As a technical optimization of this utility model, a second adjusting block 14 is fixedly installed at the lower end of the bearing column 3, and a second adjusting groove 15 adapted to the second adjusting block 14 is opened on the upper part of the bearing base plate 1. A second driving screw 17 threadedly connected to the second adjusting block 14 is rotatably connected in the second adjusting groove 15. A third driving motor 16 for driving the second driving screw 17 to rotate is fixedly installed on one side of the bearing base plate 1. A scale plate 28 is fixedly installed on the upper part of the bearing base plate 1. The scale plate 28 is adapted to the bearing column 3 and has a scale.
[0031] Specifically, when it is necessary to punch the sealing strip to different lengths, the third drive motor 16 is turned on. The output end of the third drive motor 16 drives the second drive screw 17 to rotate. When the second drive screw 17 rotates, it drives the second adjusting block 14 to slide in the second adjusting groove 15. The second adjusting block 14 drives the bearing column 3 to move, and the position of the bearing column 3 is adjusted. The position of the punching blade 4 can be adjusted, and the position of the punching blade 4 can be observed through the scale on the scale plate 28, thereby improving the applicability of the overall device.
[0032] As a technical optimization of this utility model, a number of pallets 24 located between and adapted to the fixed conveying wheels 5 are fixedly installed on the side of the bearing side plate 2. A number of telescopic devices 22 with telescopic effect are fixedly installed on one side of the bearing side plate 2. The telescopic end of the telescopic device 22 passes through the bearing side plate 2 and is fixedly installed with a push plate 23. The push plate 23 abuts against the side of the pallet 24. The bearing base plate 1 is provided with a conveying device 29 adapted to the fixed conveying wheel 5 and used for conveying.
[0033] Specifically, after the sealing strip is punched, the movable clamping wheel 7 moves upward. At this time, the telescopic device 22 is activated. The telescopic end of the telescopic device 22 drives the push plate 23 to move, pushing the punched sealing strip and dropping it onto the conveying device 29. The conveying device 29 transports the punched sealing strip to the next processing station. The pallet 24 is used to support the sealing strip.
[0034] As a technical optimization of this utility model, a plug-in block 25 is fixedly installed at one end of the punching blade 4, and a plug-in groove 26 adapted to the plug-in block 25 is opened at one end of the connecting rod 9. A fixing bolt 27 with one end threadedly connected to the side of the plug-in block 25 passes through one side of the connecting rod 9.
[0035] Specifically, when the punching cutter 4 needs to be installed, the punching cutter 4 is inserted into the insertion slot 26 at one end of the connecting rod 9, and one end of the fixing bolt 27 is threaded through the connecting rod 9 and its end is threaded to the side of the insertion block 25, which facilitates the installation or later replacement of the punching cutter 4.
[0036] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power cords. The main controller can be a conventional known device such as a computer that plays a control role.
[0037] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A die for cutting out a section of a trunk weatherstrip for an automobile, comprising a carrier substrate (1), characterized in that, The side of the bearing base plate (1) is fixedly installed with a bearing side plate (2), the upper part of the bearing base plate (1) is provided with a bearing column (3) capable of displacement adjustment, one side of the bearing column (3) is provided with a punching cutter (4) capable of moving up and down, a plurality of same horizontal fixed conveying wheels (5) are rotatably connected to one side of the bearing side plate (2), a plurality of first driving motors (6) for driving the fixed conveying wheels (5) to rotate are fixedly installed on one side of the bearing side plate (2), a plurality of movable pressing wheels (7) capable of moving up and down and matched with the positions of the fixed conveying wheels (5) are further arranged on the side of the bearing side plate (2), and an end positioning plate (8) for end positioning is arranged on one side of the bearing side plate (2).
2. The cross-section die for punching the automobile trunk sealing strip according to claim 1, wherein, One end of the punching cutter (4) is provided with a connecting rod (9), one end of the connecting rod (9) is fixedly installed with a first adjusting block (10), a first adjusting groove (11) matched with the first adjusting block (10) is formed in one side of the bearing column (3), a first driving lead screw (13) threadedly connected with the first adjusting block (10) is rotatably connected in the first adjusting groove (11), and a second driving motor (12) for driving the first driving lead screw (13) to rotate is fixedly installed on the upper end of the bearing column (3).
3. The cross-section die for punching the automobile trunk sealing strip according to claim 1, characterized in that, A second adjusting block (14) is fixedly installed on the lower end of the bearing column (3), a second adjusting groove (15) matched with the second adjusting block (14) is formed in the upper part of the bearing base plate (1), a second driving lead screw (17) threadedly connected with the second adjusting block (14) is rotatably connected in the second adjusting groove (15), and a third driving motor (16) for driving the second driving lead screw (17) to rotate is fixedly installed on one side of the bearing base plate (1).
4. The cross-section die for punching the automobile trunk sealing strip according to claim 1, wherein, A plurality of fourth driving motors (18) are fixedly installed on the upper side of the bearing side plate (2), one end of each movable pressing wheel (7) is rotatably connected with a third adjusting block (19), a plurality of third adjusting grooves (20) matched with the third adjusting blocks (19) are formed in the side of the bearing side plate (2), a third driving lead screw (21) threadedly connected with the third adjusting block (19) is rotatably connected in each third adjusting groove (20), and the fourth driving motor (18) is used for driving the third driving lead screw (21) to rotate.
5. The cross-section die for punching the automobile trunk sealing strip according to claim 1, wherein, A plurality of supporting plates (24) matched with the fixed conveying wheels (5) and located between the fixed conveying wheels (5) are fixedly installed on the side of the bearing side plate (2), a plurality of telescopic devices (22) having telescopic effect are fixedly installed on one side of the bearing side plate (2), telescopic ends of the telescopic devices (22) penetrate through the bearing side plate (2) and are fixedly installed with a pushing plate (23), the pushing plate (23) abuts against the side surface of the supporting plate (24), and the bearing base plate (1) is provided with a conveying device (29) matched with the fixed conveying wheels (5) and used for conveying.
6. The cross-section die for punching the automobile trunk sealing strip according to claim 2, characterized in that, One end of the punching cutter (4) is fixedly installed with a plug-in block (25), one end of the connecting rod (9) is formed with a plug-in groove (26) matched with the plug-in block (25), and a fixed bolt (27) having one end threadedly connected with the side surface of the plug-in block (25) penetrates through one side of the connecting rod (9).
7. The cross-section die for punching the automobile trunk sealing strip according to claim 3, characterized in that, A scale plate (28) is fixedly installed on the upper part of the bearing base plate (1), the scale plate (28) is matched with the bearing column (3) and has a scale.
Citation Information
Patent Citations
Automobile rear door sealing strip trimming die
CN219543480U