Suction jig for manipulator of injection molding machine

Abstract

The utility model discloses a suction jig for a manipulator of an injection molding machine. Comprising a hollow circular box body, three sliding rods uniformly surrounding the circular box body and vertically penetrating through the side wall of the circular box body, a driving assembly driving the three sliding rods to penetrate through the circular box body in a sliding mode, three overturning supports with one ends hinged to one ends of the sliding rods respectively, and an adjusting assembly adjusting and locking the relative angles of the overturning supports and the sliding rods. The suckers are fixed to the front ends of the overturning supports and one end of the round box body respectively, the vacuum pump is fixedly installed on the round box body and connected with the suckers at the front ends of the overturning supports through hoses, and the three sliding rods are distributed in the round box body in a front-back staggered mode and intersect at the axis of the round box body. The utility model has the following advantages and effects: the adsorption barrel body or basin body shaped product has high stability and strong adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of a material taking manipulator for an injection molding machine, in particular to a suction jig for a material taking manipulator for an injection molding machine. Background Art

[0002] To improve the discharge efficiency of injection molding machines, existing factories typically equip injection molding machines with retrieving robots for automatic material removal. The robot typically drives a suction fixture into the injection molding machine mold, sucks the molded product, and removes it from the injection molding machine. However, current suction fixtures generally have a flat suction structure. When sucking products in the shape of barrels or basins, although they can be removed by side-sucking the bottom of the product, since the center of gravity of barrel-shaped or basin-shaped products is generally in the middle, the suction fixture is very likely to become unstable during the suction process, causing the product to fall. Furthermore, some barrel-shaped or basin-shaped products have a small bottom area, which makes it difficult for suction fixtures with a flat suction structure to adapt. Utility Model Content

[0003] The utility model aims to provide a suction jig for an injection molding machine robot, which has the effects of high stability and strong adaptability in adsorbing products in the shape of barrels or basins.

[0004] The above technical purpose of the present utility model is achieved through the following technical solutions: a suction fixture for an injection molding machine robot, comprising a circular box body with a hollow interior, three sliding rods evenly surrounding the circular box body and vertically passing through the side wall of the circular box body, a driving component that drives the three sliding rods to slide and penetrate the circular box body, three flip brackets whose one end is hingedly connected to one end of each sliding rod, an adjustment component for adjusting and locking the relative angle between the flip bracket and the sliding rod, suction cups respectively fixed to the front end of the flip bracket and one end of the circular box body, a vacuum pump fixedly installed on the circular box body and connected to the suction cups at the front end of each flip bracket through a hose, and the three sliding rods are staggered front and back in the circular box body and intersect at the axis of the circular box body.

[0005] The utility model is further configured as follows: the driving assembly includes three rotating shafts rotating in a circular box body and uniformly parallel to the axis thereof, transmission pinions and driven pinions fixedly mounted on the rotating shafts, three racks respectively fixed on the side walls of the sliding rods and respectively meshing with the transmission pinions on each rotating shaft, a driving large gear rotating in the circular box body and simultaneously meshing with the three driven pinions, and a servo motor fixedly mounted on the circular box body and with its output end connected to the driving large gear, and the rotating shafts and transmission pinions are evenly distributed between the angles of the three sliding rods.

[0006] The present invention is further configured as follows: a long groove is provided on the side wall of the sliding rod, the rack is fixed in the long groove, and the transmission pinion extends into the long groove to engage with the rack.

[0007] The utility model is further configured as follows: a partition plate is fixedly provided inside the circular box body, the rotating shaft rotates through the partition plate respectively, the transmission pinion, rack and sliding rod are located on one side of the partition plate, and the driven pinion and driving gear are located on the other side of the partition plate.

[0008] The utility model is further configured as follows: mounting openings are respectively provided at both ends of the circular box body, and cover plates are respectively screwed to the two mounting openings; the servo motor and the vacuum pump are fixedly mounted on the same cover plate, and the output end of the servo motor rotates through the cover plate to connect to the driving gear.

[0009] The utility model is further configured as follows: four connecting columns are vertically connected to one side of the cover plate, and one end of the four connecting columns is commonly fixedly connected to a mounting plate for connecting the robot, the servo motor and the vacuum pump are located between the mounting plate and the cover plate, and the suction cup is fixedly installed on one side of the other cover plate.

[0010] The utility model is further configured as follows: the flip bracket includes a square sleeve hingedly connected to one end of the sliding rod, a square pin slidably inserted into the square sleeve, and a locking screw threadedly connected to one side of the square sleeve, one end of the locking screw is inserted into the square sleeve and tightened to lock the square pin, and the suction cup is fixedly installed on the end of the square pin away from the sliding rod.

[0011] The utility model is further configured as follows: the adjustment assembly includes a solid screw fixed to one side of the square sleeve, a through hole opened on the sliding rod for the solid screw to pass through, and a locking nut threadedly connected to the solid screw and locking the square sleeve and the sliding rod.

[0012] The utility model is further configured as follows: the suction cup includes a flexible disc body and a hollow screw, the hollow screw is fixed on the disc base of the flexible disc body, and connects the air pipe and the interior of the flexible disc body, the square pin is provided with a threaded hole for threaded connection to the hollow screw, and the cover plate is fixedly provided with a cylindrical nut for threaded connection to the hollow screw.

[0013] The utility model is further configured as follows: a side wall of the cylindrical nut is provided with a mounting hole for facilitating the connection of the hollow screw to the air pipe.

[0014] The beneficial effect of the present utility model is as follows: by adopting the above technical solution, before sucking up the basin-shaped or barrel-shaped product in the plunger machine for the first time, first loosen the locking nut in the adjustment assembly to release the lock on the angle of the sliding rod and the square sleeve, then manually adjust the angle between the sliding rod and the square sleeve according to the inclination of the outer contour of the product until the pin on the square sleeve is parallel to the outer contour surface of the product, then retighten the locking nut, and then loosen the locking screw on the square sleeve to release the sliding lock of the square pin and the square sleeve, finally adjust the relative position of the square pin and the square sleeve according to the height of the product until the suction cup at the front end of the square pin is just above the outer contour of the product, and then retighten the locking screw, and the work of adapting to and preparing to suck the basin-shaped or barrel-shaped product can be completed. When it is necessary to suck out the basin or barrel-shaped product in the plunger machine, the servo motor is first started to drive the active large gear to rotate, so that the active large gear engages with the driven small gears, and then each driven small gear will respectively drive the rotating shaft connected to it to rotate, and make the transmission small gears on each rotating shaft engage with the racks in the long grooves of the transmission sliding rods. Since the three sliding rods pass vertically through the side wall of the circular box body and cross the axis of the circular box body front and back, in the process of each transmission small gear engaging with the racks on the transmission sliding rods, each sliding rod will be driven to slide through the circular box body at the same time, causing one end of the sliding rod to flip. The bracket and the suction cup move closer to the circular box in the middle. Because the product is located between the flip brackets and the suction cups at this time, and the flip brackets have been adjusted to the corresponding angles and lengths through the above-mentioned adjustment components and other structures, the suction cups on the flip brackets will continue to move closer to the outer contour of the product as the sliding rod moves, until they come into contact with the outer contour of the product. Finally, the vacuum pump sucks the gas inside the suction cups at the ends of the flip brackets and the circular box through the air pipe, so that the suction cups firmly adsorb the outer contour and bottom of the product, respectively, thereby cooperating with the robot to safely and stably suck the product out of the mold of the injection molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 2 is a schematic diagram of the three-dimensional structure of this embodiment;

[0017] Figure 2 The three-dimensional structure explosion of this embodiment Figure 1 ;

[0018] Figure 3The three-dimensional structure explosion of this embodiment Figure 2 ;

[0019] In the figure, 1. circular box body; 11. partition plate; 12. cover plate; 13. connecting column; 14. mounting plate; 15. cylindrical nut; 151. mounting hole; 2. sliding rod; 21. long groove; 3. driving assembly; 31. rotating shaft; 32. transmission pinion; 33. driven pinion; 34. rack; 35. driving gear; 36. servo motor; 4. flip bracket; 41. square sleeve; 42. square pin; 421. threaded hole; 43. locking screw; 5. adjusting assembly; 51. solid screw; 52. through hole; 53. locking nut; 6. suction cup; 61. flexible disk; 62. hollow screw; 7. vacuum pump. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0021] Example: A suction fixture for an injection molding machine robot, such as Figure 1-3 As shown, it includes a circular box body 1 with a hollow interior, three sliding rods 2 evenly surrounding the circular box body 1 and vertically passing through the side wall of the circular box body 1, a driving component 3 for driving the three sliding rods 2 to slide and penetrate the circular box body 1, three flip brackets 4 with one end hingedly connected to one end of each sliding rod 2, an adjustment component 5 for adjusting and locking the relative angle between the flip bracket 4 and the sliding rod 2, suction cups 6 respectively fixed to the front end of the flip bracket 4 and one end of the circular box body 1, a vacuum pump 7 fixedly installed on the circular box body 1 and connected to the suction cups 6 at the front end of each flip bracket 4 through a hose, and the three sliding rods 2 are staggered front and back in the circular box body 1 and intersect at the axis of the circular box body 1.

[0022] like Figure 2 、 Figure 3As shown, the drive assembly 3 includes three rotating shafts 31 that rotate in the circular box body 1 and are uniformly parallel around the axis thereof, a transmission pinion 32 and a driven pinion 33 fixedly mounted on the rotating shaft 31, three racks 34 respectively fixed on the side walls of the sliding rod 2 and respectively meshing with the transmission pinion 32 on each rotating shaft 31, a driving large gear 35 that rotates in the circular box body 1 and simultaneously meshes with the three driven pinions 33, and a servo motor 36 fixedly mounted on the circular box body 1 with its output end connected to the driving large gear 35. The rotating shafts 31 and the transmission pinions 32 are evenly distributed between the angles of the three sliding rods 2. The side walls of the sliding rod 2 are provided with elongated grooves 21, the racks 34 are fixed in the elongated grooves 21, and the transmission pinion 32 extends into the elongated grooves 21 to mesh with the racks 34, which can effectively prevent the racks 34 from affecting the sliding of the sliding rod 2 through the side walls of the circular box body 1.

[0023] like Figure 2 As shown, a partition plate 11 is fixedly installed inside the circular box body 1. The rotating shaft 31 rotates through the partition plate 11. The transmission pinion 32, rack 34 and sliding rod 2 are located on one side of the partition plate 11, and the driven pinion 33 and driving gear 35 are located on the other side of the partition plate 11. The circular box body 1 has mounting openings at both ends, and the two mounting openings are screwed to the cover plate 12. The servo motor 36 and vacuum pump 7 are fixedly installed on the same cover plate 12, and the output end of the servo motor 36 rotates through the cover plate 12 to connect to the driving gear 35. The use of the above-mentioned partition plate 11 and cover plate 12 can facilitate the disassembly and assembly of the various parts inside the circular box body 1.

[0024] like Figure 1 、 Figure 2 As shown, four connecting posts 13 are vertically connected to one side of a cover plate 12, and one end of each of the four connecting posts 13 is fixedly connected to a mounting plate 14 for connecting to the robot. The servo motor 36 and vacuum pump 7 are located between the mounting plate 14 and the cover plate 12, and a suction cup 6 is fixedly mounted on one side of another cover plate 12. By using these connecting posts 13 and mounting plate 14, the suction fixture can be stably connected to the robot.

[0025] like Figure 2 、 Figure 3 As shown, the flip bracket 4 includes a square sleeve 41 hingedly connected to one end of the sliding rod 2, a square pin 42 slidably inserted into the square sleeve 41, and a locking screw 43 threadedly connected to one side of the square sleeve 41. One end of the locking screw 43 passes into the square sleeve 41 and tightens and locks the square pin 42. The suction cup 6 is fixedly installed on the end of the square pin 42 away from the sliding rod 2; the adjustment component 5 includes a solid screw 51 fixed to one side of the square sleeve 41, a through hole 52 opened on the sliding rod 2 and for the solid screw 51 to pass through, and a locking nut 53 threadedly connected to the solid screw 51 and locking the square sleeve 41 and the sliding rod 2.

[0026] like Figure 3 As shown, the suction cup 6 includes a flexible disc body 61 and a hollow screw 62. The hollow screw 62 is fixed to the disc base of the flexible disc body 61 and connects the air pipe and the interior of the flexible disc body 61. The square latch 42 is provided with a threaded hole for threaded connection with the hollow screw 62. The cover plate 12 is fixed with a cylindrical nut 15 for threaded connection with the hollow screw 62. The side wall of the cylindrical nut 15 is provided with a mounting hole 151 for convenient connection of the hollow screw 62 to the air pipe. The above-mentioned connection structure of the suction cup 6, square latch 42 and cover plate 12 can facilitate the rapid disassembly and replacement of the old suction cup 6 with the new one.

[0027] The working principle of this embodiment is as follows:

[0028] Before sucking up the basin- or barrel-shaped product in the plunger machine for the first time, first loosen the locking nut in the adjustment assembly 5 to release the lock on the angle of the sliding rod 2 and the square sleeve 41, then manually adjust the angle between the sliding rod 2 and the square sleeve 41 according to the inclination of the product's outer contour until the pin on the square sleeve 41 is parallel to the outer contour of the product, then retighten the locking nut, and then loosen the locking screw on the square sleeve 41 to release the sliding lock of the square pin 42 and the square sleeve 41, finally adjust the relative position of the square pin 42 and the square sleeve 41 according to the height of the product until the suction cup 6 at the front end of the square pin 42 is just above the outer contour of the product, then retighten the locking screw, and you can complete the work of adapting to and preparing to suck basin- or barrel-shaped products. When it is necessary to suck out the basin or barrel shaped product in the plunger machine, the servo motor 36 is first started to drive the active large gear 35 to rotate, so that the active large gear 35 engages and transmits each driven small gear 33, and then each driven small gear 33 will respectively drive the rotating shaft 31 connected thereto to rotate, and make the transmission small gear 32 on each rotating shaft 31 engage with the rack 34 in the long groove 21 of the transmission sliding rod 2. Since the three sliding rods 2 pass through the side wall of the circular box body 1 vertically and cross the axis of the circular box body 1 front and back, in the process of each transmission small gear 32 engaging and transmitting the rack 34 on each sliding rod 2, it will drive each sliding rod 2 to slide through the circular box body 1 at the same time, so that the sliding rods 2 can be rotated. The flip bracket 4 and the suction cup 6 at one end of the movable rod 2 move closer to the circular box body 1 in the middle. Because the product is located between each flip bracket 4 and the suction cup 6 at this time, and the flip bracket 4 has been adjusted to the corresponding angle and length through the above-mentioned adjustment component 5 and other structures before, the suction cup 6 on the flip bracket 4 will continue to move closer to the outer contour of the product as the sliding rod 2 moves, until it contacts the outer contour of the product. Finally, the vacuum pump 7 sucks the gas inside each flip bracket 4 and the suction cup 6 at the end of the circular box body 1 through the air pipe, so that the suction cup 6 firmly adsorbs the outer contour surface and the bottom of the product, thereby cooperating with the robot to safely and stably suck the product out of the mold of the injection molding machine.

Claims

1. A suction fixture for an injection molding machine robot, characterized in that: The invention comprises a circular box body (1) with a hollow interior, three sliding rods (2) uniformly surrounding the circular box body (1) and vertically passing through the side wall of the circular box body (1), a driving assembly (3) for driving the three sliding rods (2) to slide and penetrate the circular box body (1), three flip brackets (4) each hingedly connected at one end of each sliding rod (2), an adjusting assembly (5) for adjusting and locking the relative angle between the flip bracket (4) and the sliding rod (2), a suction cup (6) respectively fixed to the front end of the flip bracket (4) and one end of the circular box body (1), and a vacuum pump (7) fixedly mounted on the circular box body (1) and connected to the suction cups (6) at the front end of each flip bracket (4) through a hose, wherein the three sliding rods (2) are staggered front and back in the circular box body (1) and intersect at the axis of the circular box body (1).

2. The suction fixture for an injection molding machine robot according to claim 1, characterized in that: The driving assembly (3) comprises three rotating shafts (31) rotating in the circular box body (1) and uniformly parallel to the axis thereof, a transmission pinion (32) and a driven pinion (33) fixedly mounted on the rotating shaft (31), three racks (34) respectively fixed on the side walls of the sliding rod (2) and respectively meshing with the transmission pinion (32) on each rotating shaft (31), a driving gear (35) rotating in the circular box body (1) and simultaneously meshing with the three driven pinions (33), and a servo motor (36) fixedly mounted on the circular box body (1) and having its output end connected to the driving gear (35). The rotating shaft (31) and the transmission pinion (32) are uniformly distributed between the included angles of the three sliding rods (2).

3. The suction fixture for an injection molding machine robot according to claim 2, characterized in that: The side wall of the sliding rod (2) is provided with a long groove (21), the rack (34) is fixed in the long groove (21), and the transmission pinion (32) extends into the long groove (21) to engage with the rack (34).

4. The suction fixture for an injection molding machine robot according to claim 2, characterized in that: A partition plate (11) is fixedly provided inside the circular box body (1), and the rotating shaft (31) rotates through the partition plate (11). The transmission pinion (32), the rack (34) and the sliding rod (2) are located on one side of the partition plate (11), and the driven pinion (33) and the driving gear (35) are located on the other side of the partition plate (11).

5. The suction fixture for an injection molding machine robot according to claim 2, characterized in that: The circular box body (1) is provided with mounting openings at both ends, and the two mounting openings are respectively connected to cover plates (12) by screws. The servo motor (36) and the vacuum pump (7) are fixedly mounted on the same cover plate (12), and the output end of the servo motor (36) rotates through the cover plate (12) to connect to the driving gear (35).

6. The suction fixture for an injection molding machine robot according to claim 5, characterized in that: One side of the cover plate (12) is vertically connected to four connecting columns (13), and one end of the four connecting columns (13) is fixedly connected to a mounting plate (14) for connecting a manipulator. The servo motor (36) and the vacuum pump (7) are located between the mounting plate (14) and the cover plate (12). The suction cup (6) is fixedly mounted on one side of the other cover plate (12).

7. The suction fixture for an injection molding machine robot according to claim 5, characterized in that: The flip bracket (4) comprises a square sleeve (41) hingedly connected to one end of the sliding rod (2), a square latch (42) slidably plugged into the square sleeve (41), and a locking screw (43) threadedly connected to one side of the square sleeve (41). One end of the locking screw (43) penetrates into the square sleeve (41) and presses against and locks the square latch (42). The suction cup (6) is fixedly mounted on the end of the square latch (42) away from the sliding rod (2).

8. The suction fixture for an injection molding machine robot according to claim 7, characterized in that: The adjustment assembly (5) comprises a solid screw (51) fixed to one side of the square sleeve (41), a through hole (52) provided on the sliding rod (2) and through which the solid screw (51) passes, and a locking nut (53) threadedly connected to the solid screw (51) and locking the square sleeve (41) and the sliding rod (2).

9. The suction fixture for an injection molding machine robot according to claim 7, characterized in that: The suction cup (6) comprises a flexible disc body (61) and a hollow screw (62). The hollow screw (62) is fixed to the disc seat of the flexible disc body (61) and communicates with the air pipe and the interior of the flexible disc body (61). The square latch (42) is provided with a threaded hole (421) for threaded connection with the hollow screw (62). The cover plate (12) is fixed with a cylindrical nut (15) for threaded connection with the hollow screw (62).

10. The suction fixture for an injection molding machine robot according to claim 9, characterized in that: The side wall of the cylindrical nut (15) is provided with a mounting hole (151) for facilitating the connection of the hollow screw (62) to the air pipe.

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