Cutting-up die for lip edge notch of automobile sealing strip

Abstract

The utility model provides a cutting-up die for a lip edge notch of an automobile sealing strip. The cutting-up die comprises a base, the cutting-up die core is installed on the base, the supporting frame is arranged on the upper portion of the front portion of the cutting-up die core and installed on the base, the aviation plug support is fixedly installed on the supporting frame, the cutting-up air cylinder support is connected and installed on the rear portion of the cutting-up die core, the positioning mechanisms are installed on the two sides of the rear portion of the cutting-up air cylinder support, and the protective cover is fixed to the rear portions of the positioning mechanisms. The positioning mechanism and the protective cover are symmetrically distributed on the two sides of the base. According to the utility model, the problem of punching and forming the sealing strip lip notch which is longer or cannot be directly punched by a punching knife can be effectively solved, the production takt is improved, the working efficiency is improved, the die cost is reduced, and the die is suitable for common sealing strip lip notches with different lengths.

Description

Technical Field

[0001] The utility model relates to a lip edge cutting die for automobile sealing strips, belonging to the technical field of automobile sealing strip punching and forming. Background Art

[0002] In the traditional process of cutting the lip edge of the automobile sealing strip, a long punch is usually used for punching and forming. However, this method has obvious defects. Fig. 9 When the cut is long, that is, when the cut is longer than 150 mm or even 200-300 mm, the punch cannot cut it in one go, because the punch can only reach a maximum of about 150 mm. If it is longer, it will be easily deformed, or some lip cuts are more complicated and difficult to be directly cut and formed with a punch. When the cut is too long, it needs to be cut with multiple punches, but multiple punches will cause steps on the cut surface, and the sealing strip needs to be fed multiple times or the punch needs to be moved multiple times during the punching process. This not only slows down the production cycle, but also places high demands on the mold movement. The mold structure will also become complicated, thereby increasing the cost of mold development and manufacturing. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a car sealing strip lip cutting die, which can effectively solve the problem of cutting and forming sealing strip lip edges that are long or cannot be directly cut with a punch, thereby improving the production cycle and thus improving work efficiency, reducing mold costs, and is applicable to common sealing strip lip edges of different lengths.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a scoring die for cutting the lip edge of an automobile sealing strip, comprising a base; a scoring die core is installed on the base, a support frame is installed on the upper front side of the scoring die core, an air plug support is fixedly installed on the support frame, a scoring cylinder support is connected and installed at the rear of the scoring die core, a positioning mechanism is installed on both sides of the rear of the scoring cylinder support, a protective cover is fixed behind the positioning mechanism, and the positioning mechanism and the protective cover are symmetrically distributed on both sides of the base.

[0006] The base is composed of an upper base plate, a straight line groove is opened at the center line position of the upper base plate for installing the cutting die core, a front end limit block of the straight line groove at the center line position of the upper base plate is fixed on the upper base plate, and a buffer is fixed on the rear end surface of the limit block.

[0007] The bottom of the upper base plate is connected and fixed with the lower base plate through the side support plates on both sides, and a waste baffle is arranged between the upper base plate and the lower base plate; and side baffle plates are installed at the two sides of the upper base plate.

[0008] The cutting die core is composed of a punching knife seat and a cutting knife seat connected to each other, the punching knife seat and the cutting knife seat are fixed on a base, a guide block is fixed to the front end of the punching knife seat, and the front end of the guide block is equipped with an upper guide and a lower guide connected to each other; a vertical knife groove is opened on the punching knife seat, and a punching knife limit is installed in the knife groove; a T-shaped slide groove is opened on the side of the cutting knife seat, and a cutting block limit is installed in the slide groove, and a cutting knife is fixedly installed on the outside of the cutting block through a knife pressing block.

[0009] The top of the punch is connected with a locking knife block through a ball head locking pin; a limiting bolt is installed on the cutting knife seat, and the limiting bolt is locked by a locking nut; a ball screw is installed on the front end surface of the cutting block.

[0010] The support frame is composed of a horizontal cylinder mounting plate and a vertical supporting vertical plate to form a gantry structure. The bottom of the cylinder mounting plate is connected with a horizontal connecting plate through a clamping cylinder, and pressure strip blocks are installed at the bottom of both ends of the connecting plate.

[0011] The bottom of the cylinder mounting plate is provided with a pull rod connecting the supporting vertical plates on both sides; a quick-connect joint is installed on the cylinder mounting plate, and a punching cylinder is installed on the quick-connect joint and is located above the cylinder mounting plate. The punching cylinder passes through the cylinder mounting plate below and is fixed by locking nut 2.

[0012] The aviation plug bracket is composed of an aviation plug installation cover, which is a gantry structure covered on the support frame, and an aviation plug installation cover is provided with an aviation plug.

[0013] The cutting cylinder bracket is composed of a cutting cylinder mounted on a cylinder mounting base plate, a speed regulating valve is arranged on the cutting cylinder, a connecting rod is fixed on the cylinder mounting base plate at the front end of the cutting cylinder, a connecting block is fixed on the slider of the cutting cylinder, and a cutting connecting rod is clamped on the connecting block.

[0014] The positioning mechanism is composed of a positioning support block, a positioning connecting block is installed on the positioning support block, a positioning mounting block is installed at the rear end of the positioning connecting block, a positioning rod passes through a square hole on the positioning connecting block and is connected to the positioning mounting block by plug screws and springs, a sensor fixing plate is fixed on the positioning mounting block, and a proximity switch is installed on the sensor fixing plate.

[0015] The beneficial effects of the utility model are: it can effectively solve the problem of punching and forming sealing strip lip incisions that are long or cannot be directly punched with a punch knife, thereby improving the production cycle and thus improving work efficiency, reducing mold costs, and is applicable to common sealing strip lip incisions of different lengths; a combination of cutting with a scoring knife and punching with a punch knife is used to punch and form the sealing strip lip incisions, and the left and right strips can be punched at the same time, thereby improving the production cycle and thus improving work efficiency, and reducing mold research and development and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional structural schematic diagram of at least one embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle base;

[0018] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the middle cutting die core;

[0019] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the middle support frame;

[0020] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the AVIC plug-in bracket;

[0021] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the cylinder bracket cut in the middle;

[0022] Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the positioning mechanism;

[0023] Figure 8 for Figure 1 Schematic diagram of the three-dimensional structure of the middle protective cover;

[0024] Fig. 9 for Figure 1 Schematic diagram of the end face of the middle sealing strip.

[0025] In the figure: 1-base, 2-cutting core, 3-support frame, 4-air plug bracket, 5-cutting cylinder bracket, 6-positioning mechanism, 7-protective cover, 8-lower base plate, 9-side support plate, 10-waste baffle, 11-upper base plate, 12-side baffle plate, 13-limiting block, 14-buffer, 15-upper guide, 16-lower guide, 17-guide block, 18-punching knife seat, 19-cutting knife seat, 20-punching knife, 21-locking knife block, 22-ball head locking pin, 23-cutting block, 24-ball screw, 25-cutting knife, 26-pressing knife block, 27-limiting bolt, 28-locking nut 1, 29-support vertical plate, 30-knob plunger, 31-cylinder Mounting plate, 32-punching cylinder, 33-pull rod, 34-pressing cylinder, 35-flange, 36-locking nut 2, 37-connecting plate, 38-pressure strip block, 39-quick connector, 40-aviation plug mounting cover, 41-aviation plug, 42-cylinder mounting base plate, 43-connecting rod, 44-cutting cylinder, 45-speed regulating valve, 46-connecting block, 47-cutting connecting rod, 48-positioning support block, 49-positioning connecting block, 50-positioning rod, 51-positioning mounting block, 52-plug screw, 53-spring, 54-limit bolt, 55-locking nut, 56-sensor fixing plate, 57-proximity switch, 58-protective shell, 59-transparent protective plate. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0027] The first embodiment of the present invention relates to Figures 1 to 8 The illustrated example is a scoring die for cutting the lip edge of an automobile sealing strip, comprising a base 1; a scoring die core 2 is mounted on the base 1, a support frame 3 is mounted on the upper front side of the scoring die core 2, an aerial insert bracket 4 is fixedly mounted on the support frame 3, a scoring cylinder bracket 5 is connected and mounted on the rear of the scoring die core 2, a positioning mechanism 6 is mounted on both sides of the rear of the scoring cylinder bracket 5, a protective cover 7 is fixed behind the positioning mechanism 6, and the positioning mechanism 6 and the protective cover 7 are symmetrically distributed on both sides of the base 1.

[0028] The second embodiment of the utility model is substantially the same as the first embodiment, mainly in that the base 1 is composed of an upper base plate 11, a straight line groove is opened at the center line position of the upper base plate 11 for installing the cutting die core 2, a front end limit block 13 of the straight line groove at the center line position of the upper base plate 11 is fixed on the upper base plate 11, and a buffer 14 is fixed on the rear end surface of the limit block 13.

[0029] Furthermore, the bottom of the upper base plate 11 is connected and fixed with the lower base plate 8 through the side support plates 9 on both sides, and a waste baffle plate 10 is arranged between the upper base plate 11 and the lower base plate 8; and side baffle plates 12 are installed on both sides of the upper base plate 11.

[0030] Furthermore, the cutting die core 2 is composed of a punching knife seat 18 and a cutting knife seat 19 which are connected to each other. The punching knife seat 18 and the cutting knife seat 19 are fixed on the base 1. The guide block 17 is fixed at the front end of the punching knife seat 18. The front end of the guide block 17 is installed with an upper guide 15 and a lower guide 16 which are connected to each other. The punching knife seat 18 is provided with a vertical knife groove, and a punching knife 20 is limitedly installed in the knife groove. A T-shaped slide groove is provided on the side of the cutting knife seat 19, and a cutting block 23 is limitedly installed in the slide groove. A cutting knife 25 is fixedly installed on the outside of the cutting block 23 through a knife pressing block 26.

[0031] Furthermore, the top of the punching knife 20 is connected to a locking knife block 21 through a ball head locking pin 22; a limiting bolt 27 is installed on the cutting knife seat 19, and the limiting bolt 27 is locked by a locking nut 28; a ball screw 24 is installed on the front end surface of the cutting block 23.

[0032] The third embodiment of the utility model is substantially the same as the first embodiment, mainly in that the support frame 3 is composed of a transverse cylinder mounting plate 31 and a longitudinal support vertical plate 29 to form a gantry structure, a transverse connecting plate 37 is connected to the bottom of the cylinder mounting plate 31 through a clamping cylinder 34, and pressure strip blocks 38 are installed at the bottom of both ends of the connecting plate 37.

[0033] Furthermore, a pull rod 33 is provided at the bottom of the cylinder mounting plate 31 to connect the supporting vertical plates 29 on both sides; a quick-connect connector 39 is installed on the cylinder mounting plate 31, and a punching cylinder 32 is installed on the quick-connect connector 39 and is located above the cylinder mounting plate 31. The punching cylinder 32 passes through the cylinder mounting plate 31 from below and is fixed by a locking nut 36.

[0034] Furthermore, the aviation plug bracket 4 is composed of an aviation plug installation cover 40 , and the aviation plug installation cover 40 is a gantry structure covering the support frame 3 , and the aviation plug installation cover 40 is provided with an aviation plug 41 .

[0035] Furthermore, the cutting cylinder bracket 5 is composed of a cutting cylinder 44 mounted on a cylinder mounting base plate 42, a speed regulating valve 45 is provided on the cutting cylinder 44, a connecting rod 43 is fixed on the cylinder mounting base plate 42 at the front end of the cutting cylinder 44; a connecting block 46 is fixed on the slider of the cutting cylinder 44, and a cutting connecting rod 47 is clamped on the connecting block 46.

[0036] Furthermore, the positioning mechanism 6 is composed of a positioning support block 48, a positioning connecting block 49 is installed on the positioning support block 48, a positioning mounting block 51 is installed at the rear end of the positioning connecting block 49, a positioning rod 50 passes through a square hole on the positioning connecting block 49 and is connected to the positioning mounting block 51 by a plug screw 52 and a spring 53, a sensor fixing plate 56 is fixed on the positioning mounting block 51, and a proximity switch 57 is installed on the sensor fixing plate 56.

[0037] Generally, the protective cover 7 is composed of a protective shell 58 and a transparent protective plate 59 . The protective shell 58 is fixed on the positioning and mounting block 51 , and the transparent protective plate is fixed on the protective shell 58 .

[0038] The main working principle of the utility model is that after all the structural debugging is completed and reset, the sealing strip is inserted from the bell mouth of the lower guide 16, and the strip passes through the cavity of the upper guide 15, the guide block 17, the punching knife seat 18 and the cutting knife seat 19 in turn to the positioning rod 50, and the positioning rod 50 moves backward with the spring 53 and the driving screw 52 until the positioning rod 50 hits the limit bolt 54. At this time, the driving screw 52 is detected by the proximity switch 57, and the proximity switch 57 sends a signal to start the mold working.

[0039] At this time, the pressing cylinder 34 drives the connecting plate 37 and the pressure strip block 38 to push downward until the upper limit bolt 27 is pushed up. At this time, the sealing strip is pressed, and then the slider of the cutting cylinder 44 slides out to drive the connecting block 46, the cutting connecting rod 47, and the cutting blocks 23, the ball screw 24, the cutting knife 25, and the pressure knife block 26 on the left and right sides to slide forward together. At the same time, the cutting knife 25 cuts the lip of the strip and resets after the connecting block hits the buffer 14. Then the punching cylinder 32 drives the flange 35, the locking knife block 21, the ball head locking pin 22 and the punching knife 20 to punch downward and reset. At this time, the strip is cut, and the entire lip cut is punched and formed. Then the pressing cylinder 34 drives the connecting plate 37 and the pressure strip block 38 to reset, remove the strip and insert a new strip, and then perform the next cutting.

Claims

1. A lip cutting die for automobile sealing strips, comprising a base (1), characterized in that: The base (1) is provided with a cutting die core (2), a support frame (3) is provided on the upper front side of the cutting die core (2) and is provided on the base (1), an aerial inserting support (4) is provided and fixed on the support frame (3), a cutting cylinder support (5) is provided and connected to the rear of the cutting die core (2), a positioning mechanism (6) is provided on both sides of the rear of the cutting cylinder support (5), a protective cover (7) is fixed behind the positioning mechanism (6), and the positioning mechanism (6) and the protective cover (7) are symmetrically distributed on both sides of the base (1).

2. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The base (1) is composed of an upper base plate (11), a straight line groove is opened at the center line position of the upper base plate (11) for installing the cutting die core (2), a limit block (13) is arranged at the front end of the straight line groove at the center line position of the upper base plate (11), the limit block (13) is fixed on the upper base plate (11), and a buffer (14) is fixed on the rear end surface of the limit block (13).

3. The automobile sealing strip lip cutting die according to claim 2, characterized in that: The bottom of the upper bottom plate (11) is connected and fixed to the lower bottom plate (8) via side support plates (9) on both sides, and a waste baffle plate (10) is provided between the upper bottom plate (11) and the lower bottom plate (8); and side baffle plates (12) are installed at both sides of the upper bottom plate (11).

4. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The cutting die core (2) is composed of a punching knife seat (18) and a cutting knife seat (19) connected to each other. The punching knife seat (18) and the cutting knife seat (19) are fixed on the base (1). The guide block (17) is fixed to the front end of the punching knife seat (18). The front end of the guide block (17) is installed with an upper guide (15) and a lower guide (16) connected to each other. The punching knife seat (18) is provided with a knife groove in a vertical direction, and a punching knife (20) is limitedly installed in the knife groove. The side of the cutting knife seat (19) is provided with a T-shaped slide groove, and a cutting block (23) is limitedly installed in the slide groove. The outer side of the cutting block (23) is fixedly installed with a cutting knife (25) via a knife pressing block (26).

5. The automobile sealing strip lip cutting die according to claim 4, characterized in that: The top end of the punching knife (20) is connected to a locking knife block (21) via a ball head locking pin (22); a limiting bolt (27) is installed on the cutting knife seat (19), and the limiting bolt (27) is locked by a locking nut (28); and a ball screw (24) is installed on the front end surface of the cutting block (23).

6. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The support frame (3) is composed of a transverse cylinder mounting plate (31) and a longitudinal support vertical plate (29) to form a gantry structure. The bottom of the cylinder mounting plate (31) is connected to a transverse connecting plate (37) via a clamping cylinder (34). Pressure strip blocks (38) are installed at the bottom of both ends of the connecting plate (37).

7. The automobile sealing strip lip cutting die according to claim 6, characterized in that: The bottom of the cylinder mounting plate (31) is provided with a pull rod (33) connected to the supporting vertical plates (29) on both sides; a quick-connect connector (39) is installed on the cylinder mounting plate (31), and a punching cylinder (32) is installed on the quick-connect connector (39) and is located above the cylinder mounting plate (31); the punching cylinder (32) passes through the cylinder mounting plate (31) from below and is fixed by a second locking nut (36).

8. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The aviation plug bracket (4) is composed of an aviation plug installation cover (40), the aviation plug installation cover (40) is a gantry structure covering the support frame (3), and the aviation plug installation cover (40) is provided with an aviation plug (41).

9. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The cutting cylinder bracket (5) is composed of a cutting cylinder (44) mounted on a cylinder mounting base plate (42), a speed regulating valve (45) is provided on the cutting cylinder (44), a connecting rod (43) is fixed on the cylinder mounting base plate (42) at the front end of the cutting cylinder (44), and a connecting block (46) is fixed on a slider of the cutting cylinder (44), and a cutting connecting rod (47) is clamped on the connecting block (46).

10. The automobile sealing strip lip cutting die according to claim 1, characterized in that: The positioning mechanism (6) is composed of a positioning support block (48), a positioning connection block (49) is mounted on the positioning support block (48), a positioning mounting block (51) is mounted on the rear end of the positioning connection block (49), a positioning rod (50) passes through a square hole on the positioning connection block (49) and is connected to the positioning mounting block (51) by means of a plug screw (52) and a spring (53), a sensor fixing plate (56) is fixed on the positioning mounting block (51), and a proximity switch (57) is mounted on the sensor fixing plate (56).

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