A sealing strip punching mechanism

Abstract

The utility model discloses a sealing rubber strip punching mechanism, including fixed base and movable seat, and the fixed base top fixedly connected with the carrier plate, a plurality of rubber strip positioning tooling plates are installed to the carrier plate top interval, the rubber strip positioning tooling plate is equipped with rubber strip profiling hole and drill hole respectively, and the drill hole is linked together with the rubber strip profiling hole, movable seat top interval is equipped with a plurality of pneumatic motor, and the output shaft one end of pneumatic motor is connected with drill bit, the fixed base side surface is installed with the pneumatic cylinder, and the output of pneumatic cylinder is fixedly connected with movable seat, and the rubber strip profiling hole of rubber strip positioning tooling plate and carrier plate both ends guide plate are cooperated and restrain the rubber strip in the guide transmission, effectively restrain the deflection deformation of its because soft, ensure that the punching posture is stable, and the pneumatic cylinder drives movable seat to move stably, and the drill bit driven by pneumatic motor is accurately matched, and the rubber strip transmission is efficiently cooperated, realizes continuous batch punching, and the processing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip processing technology, and in particular to a sealing strip punching mechanism. Background Technology

[0002] Sealing strips are elastic sealing components widely used in doors, windows, automobiles, and other fields. They are soft and come in various cross-sectional shapes, requiring side drilling to achieve assembly with other components or for ventilation. However, in traditional processing, due to the strip's inherent softness, it is prone to swaying, bending, and other deformations during transport, making it difficult to maintain the preset drilling posture. This results in difficulty controlling the accuracy of hole positions when drilling from the side. Manual positioning and drilling is not only inefficient but also produces large errors in the position of individual holes. Even with simple mechanical assistance, it is difficult to solve the problem of inconsistent hole spacing in continuous batch processing. Hole position deviations often lead to poor strip assembly, seriously affecting the product's sealing performance and service life.

[0003] Therefore, those skilled in the art have provided a sealing strip punching mechanism to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sealing strip punching mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing strip drilling mechanism includes a fixed base and a movable base disposed on the outside of one side of the fixed base. A carrier plate is fixedly connected to the top of the fixed base. Multiple sealing strip positioning fixture plates are installed at intervals on the top of the carrier plate. The sealing strip positioning fixture plates have sealing strip contour holes on their sides, and a drilling hole is opened on the side of the sealing strip positioning fixture plate near the movable base. The drilling hole communicates with the sealing strip contour holes. Multiple motor positioning plates are installed at intervals on the top of the movable base. A pneumatic motor is installed in the middle of the motor positioning plate. One end of the output shaft of the pneumatic motor is connected to a drill bit, and the other end is provided with an air pipe connector, which is connected to an external air source. A cylinder is installed through the side of the fixed base, and the output end of the cylinder is fixedly connected to the movable base.

[0007] Preferably, the cross-sectional shape of the contour hole of the adhesive strip is adapted to the cross-sectional shape of the sealing adhesive strip to be processed, and the two ends of the contour hole of the adhesive strip extend outward along its axial direction to form an inclined guide surface.

[0008] Preferably, the outer opening size of the drill hole near the drill bit is larger than the inner opening size, and the hole wall of the drill hole extends upward from the outside to the inside until it connects with the contour hole of the rubber strip.

[0009] Preferably, the drilling end of the drill bit is a hollow tube, and a chip removal groove is provided on the outer peripheral surface near the drilling end, and the chip removal groove is connected to the inside of the hollow tube.

[0010] Preferably, the motor positioning plate consists of an upper motor ring plate and a lower motor ring plate; the upper and lower motor ring plates have symmetrically formed semi-circular grooves on adjacent sides, and the two semi-circular grooves together form a circular through hole for the pneumatic motor to pass through. The upper and lower motor ring plates are detachably fixedly connected at a pair of opposite corners by screws. Ring plate mounting blocks are fixedly connected to both sides of the lower motor ring plate, and the ring plate mounting blocks are fixed to the top of the movable seat by screws. The upper and lower surfaces of the pneumatic motor are provided with two positioning protrusions, and the inner walls of the semi-circular grooves of the upper and lower motor ring plates are provided with positioning grooves that are adapted to the positioning protrusions.

[0011] Preferably, both ends of the carrier plate are provided with guide plates, and the guide plates are also provided with rubber strip contour holes. Both ends of the guide plates are provided with guide strips protruding outward. A U-shaped bracket is slidably connected to the outside of the guide strip. Connecting blocks are fixedly connected to the bottom ends of both sides of the U-shaped bracket, and the connecting blocks are fixed to the fixing base by screws. A locking screw is installed through the side of the U-shaped bracket, and the end of the locking screw is tightly abutted against the side of the guide strip.

[0012] Preferably, the top two sides of the carrier plate are provided with strip grooves along its length direction, and the bottom two sides of the rubber strip positioning fixture plate are fixedly connected with fixture plate blocks. The fixture plate blocks are slidably inserted into the strip grooves. Multiple fastening screws are installed at intervals along the length direction on both sides of the carrier plate. One end of the fastening screws extends horizontally into the strip grooves and is threadedly connected to the middle of the fixture plate blocks.

[0013] Preferably, guide rails are provided on both sides of the bottom end of the movable seat, and the bottom ends of the movable seat are slidably engaged with the guide rails.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The sealing strip drilling mechanism designed in this utility model utilizes the synergistic effect of the strip-shaped hole in the strip positioning fixture plate and the guide plates at both ends of the carrier plate to form multi-segment constraints and guidance for the conveyed strip. This effectively suppresses the swaying and deformation caused by its soft texture, ensuring a stable drilling posture. The cylinder-driven movable seat moves smoothly along the guide rail and precisely cooperates with the drill bit driven by the pneumatic motor, forming a highly efficient synergy with the strip conveying to achieve continuous batch drilling and significantly improve processing efficiency. The inclined structure of the drill hole and the hollow tubular chip removal groove of the drill bit work together to form a highly efficient chip removal channel, which can promptly remove drilling waste, preventing it from accumulating and scratching the strip or blocking the processing flow, ensuring smooth operation. Attached Figure Description

[0016] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the punching mechanism proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the adhesive strip positioning fixture plate structure proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the pneumatic motor mounting structure proposed in this utility model;

[0020] Figure 4 The present utility model proposes Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 The present utility model proposes Figure 3 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Fixed seat; 2. Movable seat; 3. Adhesive strip positioning fixture plate; 31. Adhesive strip contour hole; 32. Drill hole; 33. Fixture plate insert block; 34. Fastening screw; 4. Motor positioning plate; 41. Motor upper ring plate; 42. Motor lower ring plate; 421. Ring plate mounting block; 5. Pneumatic motor; 51. Air pipe connector; 6. Drill bit; 61. Chip removal groove; 7. Cylinder; 8. Guide rail; 9. Guide plate; 91. Guide strip; 92. U-shaped bracket; 93. Connecting block; 94. Locking screw; 10. Carrier plate; 11. Strip groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5A sealing strip drilling mechanism includes a fixed base 1 and a movable base 2 disposed on the outside of one side of the fixed base 1. A carrier plate 10 is fixedly connected to the top of the fixed base 1. Multiple sealing strip positioning fixture plates 3 are installed at intervals on the top of the carrier plate 10. The side of the sealing strip positioning fixture plate 3 is provided with a sealing strip contour hole 31, and a drilling hole 32 is provided on the side of the sealing strip positioning fixture plate 3 near the movable base 2. The drilling hole 32 is connected to the sealing strip contour hole 31. Multiple motor positioning plates 4 are installed at intervals on the top of the movable base 2. A pneumatic motor 5 is installed in the middle of the motor positioning plate 4. One end of the output shaft of the pneumatic motor 5 is connected to a drill bit 6, and the other end is provided with an air pipe connector 51, which is connected to an external air source. A cylinder 7 is installed through the side of the fixed base 1, and the output end of the cylinder 7 is fixedly connected to the movable base 2.

[0025] Using the above technical solution, when drilling the sealing strip, an external traction device pulls it sequentially through the strip contour holes 31 on each strip positioning fixture plate 3. The contour holes are precisely matched with the strip cross-section, providing real-time constraint and guidance for the strip during transmission, ensuring stable transport at a preset angle. The pneumatic motor 5 on the movable seat 2 drives the drill bit 6 to standby, and the cylinder 7 drives the movable seat 2 to move the drill bit 6 precisely closer to or further away from the side of the strip according to the strip's transmission status. The two work together to complete the drilling action. Through the positioning effect of the strip contour holes 31, the drill bit 6 is always aligned with the preset specific drilling position, which not only meets the requirements of continuous drilling operations but also effectively avoids hole position deviation caused by strip offset, greatly improving the consistency and processing efficiency of side drilling.

[0026] The cross-sectional shape of the contour hole 31 of the rubber strip is adapted to the cross-sectional shape of the sealing strip to be processed, and the openings at both ends of the contour hole 31 extend outward along its axial direction to form an inclined guide surface.

[0027] Using the above technical solution, the cross section of the contour hole 31 of the rubber strip is adapted to the sealing rubber strip to be processed, which can form a fitting constraint when the rubber strip is pulled and transmitted, to prevent it from swaying during the movement and to ensure that the punched part is always in the preset position; the inclined guide surface with openings at both ends provides guidance for the rubber strip to pass through, reduces the resistance of the insertion, and reduces the frictional damage between the rubber strip and the edge of the hole.

[0028] The outer opening size of the drill hole 32 near the drill bit 6 is larger than the inner opening size, and the hole wall of the drill hole 32 extends upward from the outside to the inside until it connects with the rubber strip contour hole 31.

[0029] By adopting the above technical solution, the drill bit 6 can pass smoothly through the connection between the drill hole 32 and the rubber strip contour hole 31. After the drill bit 6 completes the drilling of the side of the rubber strip in the rubber strip contour hole 31, the generated debris can naturally slide off to the outside along the inclined surface of the drill hole 32, avoiding the accumulation of waste at the connection between the rubber strip contour hole 31 and the drill hole 32 or on the surface of the rubber strip. This prevents the waste from scratching the rubber strip, hindering the retraction of the drill bit 6, or affecting subsequent drilling operations, thus ensuring the cleanliness of the drilling area and improving the smoothness of continuous operation.

[0030] The drilling end of the drill bit 6 is a hollow tube, and a chip removal groove 61 is provided on the outer circumferential surface near the drilling end, and the chip removal groove 61 is connected to the inside of the hollow tube.

[0031] Using the above technical solution, the hollow tubular drilling end of the drill bit 6, combined with the chip removal groove 61, forms a highly efficient chip removal channel. During drilling, chips can enter the hollow tube through the chip removal groove 61 and be discharged, preventing chips from clogging the drill bit 6 or scratching the rubber strip, ensuring the smoothness of the hole, reducing drilling jams, and simultaneously improving processing quality and efficiency.

[0032] The motor positioning plate 4 consists of an upper motor ring plate 41 and a lower motor ring plate 42. Semicircular grooves are symmetrically provided on adjacent sides of the upper motor ring plate 41 and the lower motor ring plate 42. The two semicircular grooves together form a circular through hole for the pneumatic motor 5 to pass through. The upper motor ring plate 41 and the lower motor ring plate 42 are detachably fixedly connected at opposite corners by screws. Ring plate mounting blocks 421 are fixedly connected to both sides of the lower motor ring plate 42. The ring plate mounting blocks 421 are fixed to the top of the movable seat 2 by screws. Two positioning protrusions are provided on the upper and lower surfaces of the pneumatic motor 5. Positioning grooves that match the positioning protrusions are provided on the inner walls of the semicircular grooves of the upper motor ring plate 41 and the lower motor ring plate 42.

[0033] Using the above technical solution, the upper ring plate 41 and the lower ring plate 42 of the motor surround and fix the pneumatic motor 5, and the detachable connection facilitates disassembly and maintenance; the positioning protrusion and the groove cooperate to limit the displacement of the motor, prevent shaking during high-speed operation, and ensure the axial stability of the drill bit 6 to ensure drilling accuracy.

[0034] The carrier plate 10 is provided with guide plates 9 at both ends, and the guide plates 9 are also provided with rubber strip contour holes 31. The guide plates 9 are provided with guide strips 91 protruding outward at both ends. A U-shaped bracket 92 is slidably connected to the outside of the guide strip 91. Connecting blocks 93 are fixedly connected to the bottom ends of both sides of the U-shaped bracket 92, and the connecting blocks 93 are fixed to the fixing base 1 by screws. A locking screw 94 is installed through the side of the U-shaped bracket 92, and the end of the locking screw 94 is tightly abutted against the side of the guide strip 91.

[0035] Using the above technical solution, the guide plate 9 and the rubber strip contour hole 31 of the rubber strip positioning fixture plate 3 form a continuous guide channel, and the multi-segment support rubber strip suppresses deflection and ensures stable transmission posture; the sliding cooperation between the guide strip 91 and the U-shaped card seat 92 can adjust the position of the guide plate 9, and the locking screw 94 fixes its position; at the same time, it is also convenient to replace the corresponding guide plate 9 according to the rubber strip with different cross-sectional shapes.

[0036] The top two sides of the carrier plate 10 are provided with strip grooves 11 along its length. The bottom two sides of the rubber strip positioning fixture plate 3 are fixedly connected with fixture plate inserts 33. The fixture plate inserts 33 are slidably inserted into the strip grooves 11. Multiple fastening screws 34 are installed at intervals on both sides of the carrier plate 10 along its length. One end of the fastening screw 34 extends horizontally into the strip groove 11 and is threadedly connected to the middle of the fixture plate insert 33.

[0037] Using the above technical solution, the sliding fit between the tooling plate insert 33 and the slot 11 of the carrier plate 10 makes the tooling plate 3 for positioning the rubber strip easy to disassemble and replace: when adapting to sealing rubber strips with different cross sections, the original tooling plate can be pulled out by loosening the fastening screw 34, and a new tooling plate with the corresponding cross section rubber strip contour hole 31 can be replaced and then fixed again. The operation is simple and effectively improves the flexibility of adapting to rubber strips with different cross sections.

[0038] The bottom of the movable seat 2 is provided with guide rails 8 on both sides, and the bottom of the movable seat 2 slides in conjunction with the guide rails 8.

[0039] By adopting the above technical solution, the guide rail 8 provides a stable sliding support for the movable seat 2, enabling the movable seat 2 to move smoothly along the direction of the guide rail 8 under the drive of the cylinder 7, effectively preventing the movable seat 2 from deviating and ensuring its movement trajectory is accurate.

[0040] Working principle:

[0041] When drilling the sealing strip, the external traction device pulls the strip through the guide plates 9 at both ends of the carrier plate 10 and the strip contour holes 31 of the multiple strip positioning fixture plates 3 in the middle. The contour holes provide positioning guidance for the strip. The pneumatic motor 5 on the movable seat 2 drives the drill bit 6 to stand by. The cylinder 7 on the fixed seat 1 drives the movable seat 2 to move along the guide rail 8, which drives the drill bit 6 to approach the strip through the drill hole 32 to complete the drilling. The debris generated during drilling is discharged through the chip removal groove 61 of the drill bit 6 and the inclined surface of the drill hole 32. Through the coordinated positioning of the strip positioning fixture plate 3 and the guide plate 9, the stable installation of the pneumatic motor 5 by the motor positioning plate 4, and the coordinated action of the cylinder 7 and the traction device, the sealing strip can be drilled accurately, efficiently and continuously.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing strip punching mechanism, comprising a fixed base (1) and a movable base (2) disposed on the outside of one side of the fixed base (1), characterized in that, The top of the fixed seat (1) is fixedly connected to a carrier plate (10). Multiple adhesive strip positioning fixture plates (3) are installed at intervals on the top of the carrier plate (10). Adhesive strip positioning fixture plates (3) have adhesive strip contour holes (31) on their sides. A drilling hole (32) is opened on the side of the adhesive strip positioning fixture plate (3) near the movable seat (2). The drilling hole (32) is connected to the adhesive strip contour hole (31). Multiple motor positioning plates (4) are installed at intervals on the top of the movable seat (2). A pneumatic motor (5) is installed in the middle of the motor positioning plate (4). One end of the output shaft of the pneumatic motor (5) is connected to a drill bit (6), and the other end is provided with an air pipe connector (51). The pneumatic motor (5) is connected to an external air source through the air pipe connector (51). A cylinder (7) is installed through the side of the fixed seat (1), and the output end of the cylinder (7) is fixedly connected to the movable seat (2).

2. The sealing strip punching mechanism according to claim 1, characterized in that, The cross-sectional shape of the contour hole (31) of the adhesive strip is adapted to the cross-sectional shape of the sealing adhesive strip to be processed, and the openings at both ends of the contour hole (31) extend outward along its axial direction to form an inclined guide surface.

3. The sealing strip punching mechanism according to claim 1, characterized in that, The outer opening size of the drill hole (32) near the drill bit (6) is larger than the inner opening size, and the hole wall of the drill hole (32) extends upward from the outside to the inside until it connects with the rubber strip contour hole (31).

4. The sealing strip punching mechanism according to claim 1, characterized in that, The drilling end of the drill bit (6) is a hollow tube, and a chip removal groove (61) is provided on the outer circumferential surface near the drilling end, and the chip removal groove (61) is connected to the inside of the hollow tube.

5. The sealing strip punching mechanism according to claim 1, characterized in that, The motor positioning plate (4) is composed of an upper motor ring plate (41) and a lower motor ring plate (42). The upper motor ring plate (41) and the lower motor ring plate (42) are symmetrically provided with semi-circular grooves on adjacent sides. The two semi-circular grooves enclose a circular through hole for the pneumatic motor (5) to pass through. The upper motor ring plate (41) and the lower motor ring plate (42) are detachably fixedly connected at a pair of diagonal points by screws. The lower motor ring plate (42) is fixedly connected with ring plate mounting blocks (421) on both sides. The ring plate mounting blocks (421) are fixed to the top of the movable seat (2) by screws. The upper and lower surfaces of the pneumatic motor (5) are provided with two positioning protrusions. The inner walls of the semi-circular grooves of the upper motor ring plate (41) and the lower motor ring plate (42) are provided with positioning grooves that are adapted to the positioning protrusions.

6. The sealing strip punching mechanism according to claim 1, characterized in that, The carrier plate (10) is provided with guide plates (9) at both ends, and the guide plates (9) are also provided with rubber strip contour holes (31). The guide plates (9) are provided with guide strips (91) protruding outward at both ends. A U-shaped card seat (92) is slidably connected to the outside of the guide strip (91). Connecting blocks (93) are fixedly connected to the bottom ends of both sides of the U-shaped card seat (92), and the connecting blocks (93) are fixed to the fixed seat (1) by screws. A locking screw (94) is installed through the side of the U-shaped card seat (92), and the end of the locking screw (94) is tightly against the side of the guide strip (91).

7. The sealing strip punching mechanism according to claim 1, characterized in that, The top two sides of the carrier plate (10) are provided with strip grooves (11) along its length direction. The bottom two sides of the rubber strip positioning fixture plate (3) are fixedly connected with fixture plate inserts (33). The fixture plate inserts (33) are slidably inserted into the strip grooves (11). Multiple fastening screws (34) are installed at intervals along the length direction on both sides of the carrier plate (10). One end of the fastening screw (34) is horizontally inserted into the strip groove (11) and threadedly connected to the middle of the fixture plate insert (33).

8. The sealing strip punching mechanism according to claim 1, characterized in that, The movable seat (2) is provided with guide rails (8) on both sides of its bottom end, and the movable seat (2) slides with the guide rails (8) on both sides of its bottom end.

Images