Automatic strip steel punching and blanking machine

Abstract

The invention discloses an automatic strip steel punching and blanking machine, which belongs to the technical field of punching and blanking machines, and comprises a rack on which a feeding bracket, a flattening frame and a roller type straightening frame are sequentially mounted from back to front, the flattening frame is used for flattening strip steel, the roller type straightening frame is used for straightening the strip steel, and a punching support table which is mounted at the foremost end of the rack and is used for punching the strip steel. A punching frame is arranged over the punching supporting table and used for conducting punching treatment on the strip steel placed on the punching supporting table. According to the technical scheme, the flattening frame and the roller type straightening frame can apply driving force to strip steel during working, so that the strip steel continuously moves forwards while being flattened and straightened, the automatic discharging effect is achieved, specifically, the flattening frame can flatten the upwarp part of the strip steel through extrusion, and then the strip steel enters the roller type straightening frame; and the strip steel is straightened by the roller type straightening frame, so that the strip steel fed to the punching support table has no convex part and can be kept straight as a whole.

Description

Technical Field

[0001] The invention relates to the technical field of punching and blanking machines, in particular to an automatic strip steel punching and blanking machine. Background Art

[0002] Strip punching is a process of punching holes in steel strip materials. This processing method can accurately punch holes of the required size and shape on the steel strip to adapt to different needs. For example, in the production process of steel grating, the strip steel needs to be punched so that it can be staggered and spliced ​​with each other. Strip punching is usually completed by a punching blanking machine, which is an efficient mechanical equipment widely used in metal processing, printing, packaging, clothing and other industries. It can complete the hole manufacturing and blanking of large quantities of materials.

[0003] The existing strip steel punching and blanking machine is usually composed of a punching part and a blanking part, wherein the blanking part plays the role of conveying the strip steel, and the punching part continuously punches the strip steel, and has certain automation characteristics. However, the strip steel is very likely to produce local deformation due to collision during transportation, and may warp or bend. If it is not processed, it may affect the smooth blanking of the machine, and it is also easy to affect the accuracy of the punching position due to the deformation of the strip steel, and even cause damage to the internal structure of the punching and blanking machine. Therefore, in view of the above problems, an automatic strip steel punching and blanking machine is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic strip steel punching and unloading machine. When the punching and unloading machine is working, the strip steel to be punched is placed on a feeding bracket and passes through a flattening frame and a roller straightening frame in sequence. The flattening frame and the roller straightening frame can apply a driving force to the strip steel during operation, so that it can continuously move forward while flattening and straightening, thereby playing the role of automatic unloading. The flattening frame can flatten the raised part of the strip steel by squeezing, and then the strip steel enters the roller straightening frame, and is straightened by the roller straightening frame. Straight processing makes the strip steel fed into the punching support table have no protruding parts and can keep the whole straight. When punching, the punching frame can punch the strip steel on the punching support table, and the waste cut off will fall onto the waste guide plate, which is used to collect the waste and export it for recycling. This solves the technical problems in the prior art that the smooth unloading of the machine is affected, the punching position is offset, and even the internal structure of the punching unloading machine is damaged due to the lack of processing measures for the warped or bent parts of the strip steel.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] An automatic strip steel punching and unloading machine comprises a frame, on which a feeding bracket, a flattening frame and a roller straightening frame are sequentially installed from back to front, wherein the flattening frame is used to flatten the strip steel, and the roller straightening frame is used to straighten the strip steel, and a corresponding motor driving mechanism is installed on the back of the frame, which is used to drive the flattening frame and the roller straightening frame to work, a punching support is installed at the front end of the frame, and a punching frame is arranged directly above it, and the punching frame is used to punch the strip steel placed on the punching support, and in addition, a waste guide plate is installed at the lower side of the punching support, which is used to collect The waste from strip punching is collected and exported. During processing, the strip is placed on the feed bracket. The flattening frame and the roller straightening frame can apply driving force to the strip during operation, so that it can continuously move forward while being flattened and straightened, thereby playing the role of automatic unloading. Among them, the flattening frame can flatten the raised part of the strip by squeezing, and then the strip enters the roller straightening frame, which is straightened by the roller straightening frame, so that the strip fed into the punching bracket has no convex parts and can remain straight as a whole, which is convenient for the punching frame to punch the strip.

[0007] In a possible implementation, the flattening frame includes a flattening portal frame, a fixed pressure roller is installed at the bottom of the flattening portal frame, and a flattening hydraulic cylinder is installed at the top of the flattening hydraulic cylinder. A flattening movable frame is installed at the output shaft end of the flattening hydraulic cylinder, and a movable pressure roller corresponding to the position of the fixed pressure roller is installed on the flattening movable frame. In addition, first guide grooves are opened on both sides of the flattening portal frame, and first guide blocks sliding in the first guide grooves are provided on both sides of the flattening movable frame. In the above-mentioned structural form, the flattening hydraulic cylinder can drive the movable pressure roller to move downward, flatten the strip placed on the fixed pressure roller, eliminate the warping on the strip, and the fixed pressure roller will apply driving force to the strip when rotating to send it to the roller straightening frame.

[0008] In one possible implementation, the roller straightening frame includes a straightening gantry, a fixed straightening roller is installed at the bottom of the gantry, and a distance adjusting rod is threadedly connected to the top of the gantry, a rotatably connected straightening movable frame is installed at the bottom of the distance adjusting rod, and movable straightening rollers arranged alternately with the fixed straightening rollers are installed on the straightening movable frame, in addition, second guide grooves are opened on both sides of the straightening gantry, and second guide blocks sliding in the second guide grooves are provided on both sides of the straightening movable frame. In the above structural form, the distance between the movable straightening roller and the fixed straightening roller can be adjusted by the distance adjusting rod, so as to facilitate the straightening of strips of different thicknesses, and the fixed straightening roller will apply driving force to the strip when rotating to send it to the punching support.

[0009] In a possible implementation, the motor drive mechanism includes a flattening drive motor and a straightening drive motor, wherein the flattening drive motor is used to drive the fixed pressure roller to rotate, and the straightening drive motor is used to drive the fixed straightening roller to rotate. The above-mentioned structural form can provide power for the flattening frame and the roller straightening frame.

[0010] In a possible implementation, the shaft end of one of the fixed pressure rollers is fixedly connected to a driving wheel, and the shaft end of the other fixed pressure roller is fixedly connected to a driven wheel. The driving wheel and the driven wheel are connected via a transmission belt. The output shaft of the flattening drive motor is connected to the driving wheel. When the flattening drive motor is working, it can drive the driving wheel to rotate, and drive the driven wheel to rotate synchronously through the transmission belt, so that the two fixed pressure rollers can rotate synchronously in the same direction to play a feeding role.

[0011] In a possible implementation, a driving gear is fixedly connected to the shaft end of one of the fixed straightening rollers, and a driving gear is fixedly connected to the shaft end of the fixed straightening roller. The driving gear and the driving gear are connected via a transmission gear. The output shaft of the straightening drive motor is connected to the driving gear. When the straightening drive motor is working, it can drive the driving gear to rotate, and drive the driving gear to rotate synchronously through the transmission gear, so that all the fixed straightening rollers can rotate synchronously in the same direction, thereby playing a feeding role.

[0012] In one possible implementation, the punching frame includes a punching gantry, a punching hydraulic cylinder is installed on the top of which, the output shaft end of the punching hydraulic cylinder is fixedly connected to a mounting plate, a punching head is detachably installed on the lower end surface of the mounting plate, and the punching hydraulic cylinder can apply downward pressure to the punching head so that the punching head moves downward to punch holes in the steel strip.

[0013] In one possible implementation, the punching support includes an L-shaped frame plate installed on a frame, on which a material supporting plate is mounted, and guide rods are fixedly arranged at the four corners of the upper end surface of the material supporting plate. Through holes corresponding to the guide rods are opened at the four corners of the mounting plate. The material supporting plate can support the strip steel and provide the necessary structural foundation for the punching head to perform the punching process. In addition, the guide rod can guide and constrain the movement of the mounting plate, ensuring that the mounting plate can only move up and down, that is, constraining the punching head to only move up and down, and no deviation will occur during the movement, thereby ensuring the punching effect.

[0014] In one possible implementation, a drop port is provided on the support table and is located directly above the waste guide plate. In addition, a discharge port connected to the bottom outlet of the waste guide plate is provided on the punching gantry. The punched waste will fall from the drop port, slide along the waste guide plate, and finally slide out from the discharge port, making it convenient for users to recycle the waste.

[0015] In one possible implementation, the feed bracket includes a side frame plate, between which a plurality of rolling support rollers are installed, and the installed support rollers are all at the same height. The support rollers can support the strip entering the equipment, and due to the rolling characteristics of the support rollers, no large friction will be generated, thereby facilitating the feeding of the strip.

[0016] In summary, the present invention includes the following beneficial technical effects:

[0017] When the punching and unloading machine is working, the strip steel to be punched is placed on the feeding bracket and passes through the flattening frame and the roller straightening frame in sequence. The flattening frame and the roller straightening frame can apply driving force to the strip steel during operation, so that it moves forward continuously, playing the role of automatic unloading;

[0018] During the automatic unloading process, the flattening frame can flatten the raised part of the strip by squeezing, and then the strip enters the roller straightening frame, which straightens it, so that the strip fed into the punching platform has no convex part and can keep the whole straight;

[0019] During punching, the punching rack can punch the strip on the punching pallet, and the waste cut off will fall onto the waste guide plate, which is used to collect the waste and guide it out for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a rear view of the overall structure of the present invention;

[0022] Figure 2 It is a front view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the flattening frame structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the roller straightening frame of the present invention;

[0025] Figure 5 It is a rear view of the roller straightening frame of the present invention;

[0026] Figure 6 It is a schematic diagram of the punching structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the feed bracket of the present invention.

[0028] In the figure: 1, frame; 2, feed bracket; 21, side frame plate; 22, support roller; 3, flattening frame; 31, flattening door frame; 32, fixed pressure roller; 33, flattening hydraulic cylinder; 34, flattening movable frame; 35, movable pressure roller; 36, first guide groove; 37, first guide block; 4, roller straightening frame; 41, straightening door frame; 42, fixed straightening roller; 43, pitch adjustment rod; 44, straightening movable frame; 45, movable straightening roller; 46, second guide groove; 47, second guide block; 5, punching Frame; 51, punching gantry; 52, punching hydraulic cylinder; 53, mounting table; 54, punching head; 6, punching support; 61, L-shaped frame; 62, support table; 63, guide rod; 7, waste guide; 71, discharge port; 72, blanking port; 8, motor drive mechanism; 81, flattening drive motor; 811, driving wheel; 812, driven wheel; 813, transmission belt; 82, straightening drive motor; 821, driving gear; 822, driving gear; 823, transmission gear. DETAILED DESCRIPTION

[0029] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0030] like Figure 1 - Figure 2 As shown, an automatic strip steel punching and unloading machine provided in this embodiment includes a frame 1, on which a feeding bracket 2, a flattening frame 3 and a roller straightening frame 4 are installed in sequence from back to front, wherein the flattening frame 3 is used to flatten the strip steel, and the roller straightening frame 4 is used to straighten the strip steel, and a corresponding motor drive mechanism 8 is installed on the back of the frame 1, which is used to drive the flattening frame 3 and the roller straightening frame 4 to work, a punching bracket 6 is installed at the front end of the frame 1, and a punching bracket 5 is arranged directly above it, and the punching bracket 5 is used to punch the strip steel placed on the punching bracket 6, and in addition, a waste material is installed on the lower side of the punching bracket 6. The guide plate 7 is used to collect the waste material from the punching of the strip and guide it out. During processing, the strip is mounted on the feed bracket 2. The flattening frame 3 and the roller straightening frame 4 can apply driving force to the strip during operation, so that it can continuously move forward while being flattened and straightened, thereby playing the role of automatic unloading. Among them, the flattening frame 3 can flatten the raised part of the strip by squeezing, and then the strip enters the roller straightening frame 4, which is straightened by the roller straightening frame 4, so that the strip fed onto the punching support 6 has no convex parts and can remain straight as a whole, which is convenient for the punching frame 5 to punch the strip.

[0031] Among them, the motor drive mechanism 8 includes a flattening drive motor 81 and a straightening drive motor 82, wherein the flattening drive motor 81 is used to drive the fixed pressure roller 32 to rotate, and the straightening drive motor 82 is used to drive the fixed straightening roller 42 to rotate. The above structural form can provide power for the flattening frame 3 and the roller straightening frame 4.

[0032] like Figure 3 As shown, the flattening frame 3 includes a flattening portal frame 31, a fixed pressure roller 32 is installed at the bottom of the flattening portal frame 31, and a flattening hydraulic cylinder 33 is installed at the top of the flattening hydraulic cylinder 33. A flattening movable frame 34 is installed at the output shaft end of the flattening hydraulic cylinder 33, and a movable pressure roller 35 corresponding to the position of the fixed pressure roller 32 is installed thereon. In addition, first guide grooves 36 are opened on both sides of the flattening portal frame 31, and first guide blocks 37 sliding in the first guide grooves 36 are provided on both sides of the flattening movable frame 34. In the above-mentioned structural form, the flattening hydraulic cylinder 33 can drive the movable pressure roller 35 to move downward, flatten the strip placed on the fixed pressure roller 32, and eliminate the warping on the strip. The fixed pressure roller 32 will apply driving force to the strip when rotating to send it to the roller straightening frame 4.

[0033] Correspondingly, the shaft end of one of the fixed pressure rollers 32 is fixedly connected to a driving wheel 811, and the shaft end of the other fixed pressure roller 32 is fixedly connected to a driven wheel 812. The driving wheel 811 and the driven wheel 812 are connected via a transmission belt 813. The output shaft of the flattening drive motor 81 is connected to the driving wheel 811. When the flattening drive motor 81 is working, it can drive the driving wheel 811 to rotate, and drive the driven wheel 812 to rotate synchronously through the transmission belt 813, so that the two fixed pressure rollers 32 can rotate synchronously in the same direction to play a feeding role.

[0034] like Figure 4 - Figure 5 As shown, the roller straightening frame 4 includes a straightening portal frame 41, a fixed straightening roller 42 is installed at the bottom of which, and a distance adjusting rod 43 is threadedly connected to the top of the straightening portal frame 41, a rotatably connected straightening movable frame 44 is installed at the bottom of the distance adjusting rod 43, and movable straightening rollers 45 arranged alternately with the fixed straightening rollers 42 are installed thereon. In addition, second guide grooves 46 are opened on both sides of the straightening portal frame 41, and second guide blocks 47 sliding in the second guide grooves 46 are provided on both sides of the straightening movable frame 44. In the above-mentioned structural form, the distance between the movable straightening roller 45 and the fixed straightening roller 42 can be adjusted by the distance adjusting rod 43, so as to facilitate the straightening treatment of strip steels of different thicknesses, and the fixed straightening roller 42 will apply driving force to the strip steel when rotating to send it to the punching support 6.

[0035] Correspondingly, a driving gear 821 is fixedly connected to the shaft end of one of the fixed straightening rollers 42, and a driving gear 822 is fixedly connected to the shaft end of the fixed straightening roller 42. The driving gear 821 and the driving gear 822 are connected via a transmission gear 823. The output shaft of the straightening drive motor 82 is connected to the driving gear 821. When the straightening drive motor 82 is working, it can drive the driving gear 821 to rotate, and drive the driving gear 822 to rotate synchronously through the transmission gear 823, so that all the fixed straightening rollers 42 can rotate synchronously in the same direction, thereby playing a feeding role.

[0036] like Figure 6As shown, the punching frame 5 includes a punching gantry 51, on the top of which a punching hydraulic cylinder 52 is installed, the output shaft end of the punching hydraulic cylinder 52 is fixedly connected to a mounting plate 53, and a punching head 54 is detachably installed on the lower end surface of the mounting plate 53. The punching hydraulic cylinder 52 can apply downward pressure to the punching head 54, so that the punching head 54 moves downward to punch holes in the strip.

[0037] The punching support 6 includes an L-shaped frame plate 61 installed on the frame 1, on which a supporting table 62 is mounted. Guide rods 63 are fixedly arranged at the four corners of the upper end surface of the supporting table 62. Through holes corresponding to the guide rods 63 are opened at the four corners of the mounting plate 53. The supporting table 62 can support the strip steel and provide the necessary structural foundation for the punching head 54 to perform the punching processing. In addition, the guide rod 63 can guide and constrain the movement of the mounting plate 53, ensuring that the mounting plate 53 can only move up and down, that is, constraining the punching head 54 to only move up and down, and will not deviate during the movement, thereby ensuring the punching effect.

[0038] like Figure 6 As shown, a drop port 72 is provided on the supporting table 62, which is located directly above the waste guide plate 7. In addition, a discharge port 71 connected to the bottom outlet of the waste guide plate 7 is provided on the punching gantry 51. The punched waste will fall from the drop port 72, slide along the waste guide plate 7, and finally slide out from the discharge port 71, so that the user can recycle the waste.

[0039] like Figure 7 As shown, the feed bracket 2 includes a side frame plate 21, between which a plurality of rolling support rollers 22 are installed, and the installed support rollers 22 are all at the same height. The support rollers 22 can support the strip entering the equipment, and due to the rolling characteristics of the support rollers 22, no large friction will be generated, so that the strip can be fed in easily.

[0040] The use principle and use process of the present invention:

[0041] When the punching and unloading machine is in operation, the strip to be punched is placed on the feed bracket 2 and passes through the flattening frame 3 and the roller straightening frame 4 in sequence. The flattening frame 3 and the roller straightening frame 4 can apply driving force to the strip during operation, so that it moves forward continuously, thereby achieving the effect of automatic unloading.

[0042] During the automatic unloading process, the flattening frame 3 can flatten the raised part of the strip by squeezing, and then the strip enters the roller straightening frame 4, which straightens it so that the strip sent to the punching support 6 has no convex parts and can remain straight as a whole; specifically, the flattening hydraulic cylinder 33 can drive the movable pressure roller 35 to move downward, flatten the strip placed on the fixed pressure roller 32, eliminate the warping on the strip, and the fixed pressure roller 32 will apply a driving force to the strip when rotating, and send it to the roller straightening frame 4, and adjust the distance between the movable straightening roller 45 and the fixed straightening roller 42 by the distance adjusting rod 43, so as to straighten the strips of different thicknesses, and the fixed straightening roller 42 will apply a driving force to the strip when rotating, and send it to the punching support 6.

[0043] When punching, the punching frame 5 can punch the strip steel on the punching support 6, and the waste cut by punching will fall from the blanking port 72, slide along the waste guide plate 7, and finally slide out from the discharge port 71, so that the user can recycle the waste.

[0044] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An automatic strip steel punching and blanking machine, characterized in that: include: A frame (1) is provided with a feeding bracket (2), a flattening frame (3) and a roller straightening frame (4) mounted thereon in order from the back to the front, wherein the flattening frame (3) is used to flatten the steel strip, and the roller straightening frame (4) is used to straighten the steel strip, and a corresponding motor drive mechanism (8) is mounted on the back of the frame (1) to drive the flattening frame (3) and the roller straightening frame (4) to work; A punching support (6) is installed at the front end of the frame (1), and a punching rack (5) is arranged directly above the punching support (6). The punching rack (5) is used to punch the strip steel placed on the punching support (6). In addition, a waste guide plate (7) is installed on the lower side of the punching support (6) to collect waste from the punching of the strip steel and guide it out.

2. The automatic strip steel punching and blanking machine according to claim 1, characterized in that: The flattening frame (3) comprises a flattening door frame (31), a fixed pressure roller (32) is installed at the bottom of the flattening door frame, and a flattening hydraulic cylinder (33) is installed at the top of the flattening hydraulic cylinder (33). A flattening movable frame (34) is installed at the output shaft end of the flattening hydraulic cylinder (33), and a movable pressure roller (35) corresponding to the position of the fixed pressure roller (32) is installed on the flattening door frame (31). In addition, first guide grooves (36) are opened on both sides of the flattening door frame (31), and first guide blocks (37) sliding in the first guide grooves (36) are provided on both sides of the flattening movable frame (34).

3. The automatic strip steel punching and blanking machine according to claim 2 is characterized in that: The roller straightening frame (4) comprises a straightening portal frame (41), a fixed straightening roller (42) is installed at the bottom of the straightening portal frame, and a distance adjusting rod (43) is threadedly connected to the top of the straightening portal frame. A rotatably connected straightening movable frame (44) is installed at the bottom of the distance adjusting rod (43), and movable straightening rollers (45) arranged alternately with the fixed straightening rollers (42) are installed on the movable straightening frame. In addition, second guide grooves (46) are opened on both sides of the straightening portal frame (41), and second guide blocks (47) sliding in the second guide grooves (46) are provided on both sides of the straightening movable frame (44).

4. The automatic strip steel punching and blanking machine according to claim 3 is characterized in that: The motor drive mechanism (8) comprises a flattening drive motor (81) and a straightening drive motor (82), wherein the flattening drive motor (81) is used to drive the fixed pressure roller (32) to rotate, and the straightening drive motor (82) is used to drive the fixed straightening roller (42) to rotate.

5. The automatic strip steel punching and blanking machine according to claim 4, characterized in that: The shaft end of one of the fixed pressing rollers (32) is fixedly connected to a driving wheel (811), and the shaft end of the other fixed pressing roller (32) is fixedly connected to a driven wheel (812); the driving wheel (811) and the driven wheel (812) are connected in transmission via a transmission belt (813); and the output shaft of the flattening drive motor (81) is connected in transmission to the driving wheel (811).

6. The automatic strip steel punching and blanking machine according to claim 4, characterized in that: A driving gear (821) is fixedly connected to the shaft end of one of the fixed straightening rollers (42), and a driving gear (822) is fixedly connected to the shaft end of the fixed straightening roller (42). The driving gear (821) and the driving gear (822) are transmission-connected via a transmission gear (823), and the output shaft of the straightening drive motor (82) is transmission-connected to the driving gear (821).

7. The automatic strip steel punching and blanking machine according to claim 1, characterized in that: The punching frame (5) comprises a punching gantry (51), a punching hydraulic cylinder (52) is mounted on the top of which, the output shaft end of the punching hydraulic cylinder (52) is fixedly connected to a mounting plate (53), and a punching head (54) is detachably mounted on the lower end surface of the mounting plate (53).

8. The automatic strip steel punching and blanking machine according to claim 7, characterized in that: The punching support platform (6) comprises an L-shaped frame plate (61) mounted on the frame (1), on which a material supporting platform (62) is mounted, and guide rods (63) are fixedly arranged at the four corners of the upper end surface of the material supporting platform (62), and through holes corresponding to the guide rods (63) are opened at the four corners of the mounting platform (53).

9. The automatic strip steel punching and blanking machine according to claim 8, characterized in that: The support platform (62) is provided with a material drop opening (72) which is located directly above the waste guide plate (7). In addition, the punching door frame (51) is provided with a material discharge opening (71) which is connected to the bottom outlet of the waste guide plate (7).

10. The automatic strip steel punching and blanking machine according to claim 1, characterized in that: The feed bracket (2) comprises a side frame plate (21) between which a plurality of rolling support rollers (22) are installed, and the installed support rollers (22) are all at the same height.

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