On-line sprue cutting and weighing stacker crane

Abstract

The utility model provides an on-line sprue cutting and weighing stacker crane which comprises a mechanical arm located on the side edge of at least one injection molding machine, a material grabbing device is connected to the mechanical arm, the mechanical arm controls the material grabbing device to take materials in the injection molding machine, the on-line sprue cutting and weighing stacker crane further comprises a stacking table and a conveying frame, a stacking frame is fixedly connected to the stacking table, and the conveying frame is fixedly connected to the stacking table. A sliding grabbing device is arranged on one side of the stacking frame, and the sliding grabbing device grabs products from the stacking frame to the conveying frame. The stacking frame comprises vertical baffles arranged in a square shape, the vertical baffles form a containing cavity, and limiting clamping tongues are oppositely arranged on the two sides of the bottom of the containing cavity. The injection molding products are placed on the same stacking table to be cooled and shaped, the weighing device is used for weighing before stacking, the integrity of the products is determined, cooling is conducted in a stacking mode, and the production efficiency of the injection molding products is improved.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for injection molding products, in particular to an online gate cutting, weighing and stacking machine. Background Art

[0002] After some injection molded products are injected by the injection molding machine, the traditional method is to grab the nozzle from the injection mold cavity into the material box or convey it through the assembly line through a robot, and then manually transport it to the waste cutting device to cut off the nozzle, and then test the quality of the injection molded products, including the completeness of the injection molding, the presence of gaps, etc. For some large products, cooling and curing are required to prevent subsequent products from warping and deformation. The whole process is divided into multiple steps, and the whole transportation process also consumes a lot of time and has low efficiency. In addition, in the prior art, the product is usually cooled in the injection cavity to prevent deformation before being discharged, which consumes a long time and affects work efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes an online gate cutting weighing stacker, comprising a manipulator located on the side of at least one injection molding machine, the manipulator is connected to a material grabbing device, and the manipulator controls the material grabbing device to pick up materials in the injection molding machine.

[0004] It also includes a stacking platform and a conveying frame, wherein the stacking platform is fixedly connected to the stacking frame, and a sliding grabbing device is provided on one side of the stacking frame, and the sliding grabbing device grabs the product from the stacking frame to the conveying frame;

[0005] The stacking rack comprises vertical baffles arranged in a square shape, the vertical baffles forming a receiving cavity for receiving the stacked heat dissipation aluminum plates, and limiting latches are arranged on both sides of the bottom of the receiving cavity;

[0006] The stacking platform is provided with an opening, and slide rails are provided on both sides of the opening. A slide plate is slidably connected to the slide rail, and a push-pull cylinder is connected to the slide plate, and the push-pull cylinder pulls the slide plate to the bottom of the accommodating cavity; the slide plate is connected to a lifting mechanism, and a top plate is provided on the lifting mechanism for supporting the heat dissipation aluminum plate, and the lifting mechanism drives the heat dissipation aluminum plate to rise to the upper part of the limit tongue.

[0007] Preferably, the limiting tongue comprises a shell, a telescopic block is arranged in the shell, one end of the telescopic block is provided with a spring and pressed in the shell, and the other end is provided with a wedge surface and extends out of the shell, and the wedge surface faces downward.

[0008] Preferably, the lifting mechanism includes a lifting cylinder fixed on the slide, the output end of the lifting cylinder is fixedly connected to the top plate, a plurality of guide columns are provided between the top plate and the slide, and a paddle is provided on the side of the top plate away from the accommodating cavity.

[0009] Preferably, a through hole is provided in the center of the heat dissipation aluminum plate.

[0010] Preferably, a connecting plate is provided between the adjacent vertical baffles, and a plurality of fans are arranged on the connecting plate.

[0011] Preferably, lifting and weighing cylinders are provided on both sides of the opening of the palletizing table, a lifting plate is connected to the output end of the lifting and weighing cylinders, and a weighing sensor is provided on the lifting plate.

[0012] Preferably, the sliding grasping device includes a sliding table, a vertical module is connected to the slider of the sliding table, a plate body is connected to the vertical module, first pair of clamping cylinders are respectively connected to the four sides of the plate body, and first clamping plates are connected to the output ends of the first pair of clamping cylinders.

[0013] Preferably, the material grasping device includes a long plate, a jaw cylinder is provided at one end of the long plate, a clamping piece is connected to the output end of the jaw cylinder, an arc groove is provided on the opposite side of the clamping piece, second pair of clamping cylinders are provided on the opposite side of the long plate, and second clamping plates are connected to the output ends of the second pair of clamping cylinders.

[0014] Preferably, a gate cutting device is further provided on the moving path of the manipulator. The gate cutting device includes a placement table, a pressing cylinder is provided on the placement table, a cutting knife is connected to the output end of the pressing cylinder, a sliding mechanism is provided on the placement table, and a placement plate is provided on the sliding mechanism.

[0015] The online gate cutting, weighing and palletizing machine proposed by the present utility model has the following beneficial effects: After the injection molded product is directly taken out from the injection molding machine by the manipulator and grabbed onto the gate cutting device to cut the gate, the injection molded product is placed on the same palletizing table for cooling and shaping. And before palletizing, there is a weighing device to weigh to determine the integrity of the product. Cooling is carried out simultaneously through the palletizing method, greatly improving the cooling efficiency and the production efficiency of the injection molded product. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the palletizing table and the conveying frame of the present utility model;

[0019] Figure 3 It is a connection schematic diagram of the lifting mechanism and the palletizing table of the present utility model;

[0020] Figure 4 It is a partially enlarged schematic diagram of the lifting mechanism and the stacking platform of the utility model;

[0021] Figure 5 It is a schematic diagram of the heat dissipation aluminum plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the material grabbing device of the utility model;

[0023] Figure 7 It is a schematic diagram of the nozzle cutting device of the utility model;

[0024] Figure 8 It is a cross-sectional view of the limiting tongue of the utility model;

[0025] Among them, 1. Robot; 2. Grabbing device; 3. Injection molding machine; 4. Stacking platform; 5. Water nozzle cutting device; 6. Conveyor rack; 7. Sliding grabbing device; 8. Vertical baffle; 9. Heat dissipation aluminum plate; 10. Limiting tongue; 11. Opening; 12. Slide rail; 13. Slide plate; 14. Push-pull cylinder; 15. Top plate; 16. Shell; 17. Telescopic block; 18. Spring; 19. Wedge surface; 20. Lifting cylinder; 21. Guide column; 22. Toggle piece; 23. Through hole; 24. Connecting plate; 25. Fan; 26. Lifting and weighing cylinder; 27. Lifting plate; 28. Weighing sensor; 29. ​​Slide; 30. Vertical module; 31. Plate body; 32. First pair of clamping cylinders; 33. First clamping plate; 34. Long plate; 35. Clamping claw cylinder; 36. Clamping piece; 37. Arc groove; 38. Second pair of clamping cylinders; 39. Second clamping plate; 40. Placement table; 41. Pressing cylinder; 42. Cutter; 43. Sliding mechanism; 44. Placement plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1 , Figure 2 As shown, the utility model proposes an online gate cutting weighing stacker, including a manipulator 1 located on the side of at least one injection molding machine 3, the manipulator 1 is connected to a material grabbing device 2, the manipulator 1 controls the material grabbing device 2 to pick up materials in the injection molding machine 3, generally for efficient operation, the manipulator 1 can be arranged between two injection molding machines 3, and grab the products of the two injection molding machines 3 in turn, the manipulator 1 uses a multi-axis manipulator 1, and can grab at multiple angles, the manipulator 1 is a purchased product, and the product just molded by the injection molding machine 3 includes the product itself and the injection nozzle, in this embodiment, since the product is a plate-shaped structure, such as Figure 6As shown in the figure, the material grabbing device 2 is designed as a long plate 34. One end of the long plate 34 is provided with a jaw cylinder 35. The output end of the jaw cylinder 35 is connected with a clamping piece 36. An arc groove 37 is arranged on the opposite side of the clamping piece 36. A second pair of clamping cylinders 38 is arranged on the opposite side of the long plate 34. The output end of the second pair of clamping cylinders 38 is connected with a second clamping plate 39. First, it is fixedly connected to the long plate 34 through the rotating shaft of the manipulator 1. After the second pair of clamping cylinders 38 grabs the sprue of the product first, that is, the clamping pieces 36 are respectively installed on the two jaws of the clamping cylinder. When one ends of the arc grooves 37 approach each other, the sprue can be fixed. Then, the product is taken out by moving the manipulator 1. The taken-out product is grabbed onto the sprue cutting device 5, as Figure 7 As shown in the figure, the sprue cutting device 5 includes a placement table 40. A pressing cylinder 41 is arranged on the placement table 40. The output end of the pressing cylinder 41 is connected with a cutting knife 42. A sliding mechanism 43 is arranged on the placement table 40. A placement plate 44 is arranged on the sliding mechanism 43. The grabbed product is placed on the placement plate 44. The sliding mechanism 43 can be a slide rail 12 cooperating with a sliding plate. By setting a cylinder to pull the sliding plate, or using a sliding module, the placement plate 44 moves to the lower part of the cutting knife 42. The number and position of the pressing cylinders 41 are set according to the position of the product sprue. After the pressing cylinder 41 presses down to cut off the sprue, the manipulator 1 rotates the long plate 34 to align the second pair of clamping cylinders 38 with both sides of the product. By extending the second pair of clamping cylinders 38, both sides of the product are clamped, and the product is transported to the palletizing table 4 by the manipulator 1. A conveying rack 6 is also arranged at one end of the palletizing table 4.

[0028] A palletizing rack is fixedly connected to the palletizing table 4. A sliding grabbing device 7 is arranged on one side of the palletizing rack. The sliding grabbing device 7 grabs the product from the palletizing rack onto the conveying rack 6; the sliding grabbing device 7 includes a sliding table 29. One end of the sliding table 29 is on the palletizing table 4, and the other end passes through the palletizer and extends to the other side of the palletizing rack. A vertical module 30 is connected to the slider of the sliding table 29. A plate body 31 is connected to the vertical module 30. First pairs of clamping cylinders 32 are respectively connected to the four sides of the plate body 31. The output ends of the first pairs of clamping cylinders 32 are connected with first clamping plates 33. The vertical module 30 can control the up and down movement of the plate body 31 to facilitate grabbing the heat dissipation aluminum plate 9. The heat dissipation aluminum plate 9 can be effectively clamped by two groups of first pairs of clamping cylinders 32.

[0029] In addition, the palletizing rack includes vertical baffles 8 arranged in a square. The vertical baffles 8 are perpendicular to the palletizing table 4. The four vertical baffles 8 are arranged at the four corners of a rectangle to form a receiving cavity for receiving stacked heat dissipation aluminum plates 9. The structure of the heat dissipation aluminum plate 9 is as Figure 5As shown, it includes a plate body 31, and the center of the heat dissipation aluminum plate 9 is provided with a through hole 23. The product is placed on the heat dissipation aluminum plate 9, and the through hole 23 can facilitate the stacked products to improve the heat dissipation efficiency. The slide plate 13 is connected to a lifting mechanism, and the lifting mechanism is provided with a top plate 15 for supporting the heat dissipation aluminum plate 9. The lifting mechanism drives the heat dissipation aluminum plate 9 to rise to the upper part of the limit tongue 10.

[0030] In order to detect the injection molding integrity of the injection molded product throughout the entire process, such as Figure 3 , Figure 4 As shown, a lifting weighing cylinder 26 is also arranged on both sides of the slide rail 12, and a lifting plate 27 is connected to the output end of the lifting weighing cylinder 26, and a weighing sensor 28 is arranged on the lifting plate 27. In the initial state, the lifting weighing cylinder 26 extends to lift the lifting plate 27 and make it higher than the height of the top plate 15. When the manipulator 1 grabs the product after the water outlet is cut off, it is first placed on the heat dissipation aluminum plate 9 on the lifting plate 27 (the heat dissipation aluminum plate 9 is grabbed from the top of the stacking frame by the sliding grabbing device 7 and placed on the lifting plate 27). After weighing by the weighing sensor 28, the completeness of the injection amount is determined. If the weight meets the standard, it is judged that the injection is complete and meets the requirements. Then, the lifting weighing cylinder 26 is contracted, so that the heat dissipation aluminum plate 9 falls onto the top plate 15, and the stacking platform 4 is An opening 11 is provided, and slide rails 12 are provided on both sides of the opening 11. A slide plate 13 is slidably connected to the slide rails 12. A push-pull cylinder 14 is connected to the lower part of the slide plate 13. The push-pull cylinder 14 pulls the slide plate 13 to move to the bottom of the accommodating cavity. After reaching the bottom, it is lifted up by the jacking mechanism connected to the lower part of the sliding plate and sent into the accommodating cavity. Specifically: the output end of the jacking cylinder 20 is fixedly connected to the top plate 15, and a plurality of guide pillars 21 are provided between the top plate 15 and the slide plate 13. The guide pillars 21 are conducive to the stability of lifting and lowering. A toggle plate 22 is provided on the side of the top plate 15 away from the accommodating cavity. The toggle plate 22 limits the position of the heat dissipation aluminum plate 9 to prevent the heat dissipation aluminum plate 9 from accidentally touching and falling when moving it into the accommodating cavity. Limiting tongues 10 are relatively provided on both sides of the bottom of the accommodating cavity, such as Figure 8As shown, the limit tongue 10 includes a housing 16. A telescopic block 17 is provided inside the housing 16. One end of the end of the telescopic block 17 is provided with a spring 18 and is pressed inside the housing 16, and the other end is provided with a wedge surface 19 and extends out of the housing 16. The wedge surface 19 faces downward. When the lower heat dissipation aluminum sheet pushes the injection molded product upward, it will push the wedge surfaces 19 of the telescopic blocks 17 on both sides, and will push the telescopic block 17 to squeeze the spring 18 to contract. When the heat dissipation aluminum plate 9 is gradually pushed to the upper part of the telescopic block 17, the telescopic block 17 extends out due to the action of the spring 18 to support the heat dissipation aluminum plate 9. Repeat the above actions to gradually stack the heat dissipation aluminum plates 9, and the injection molded products are respectively pressed between two heat dissipation aluminum plates 9. A connecting plate 24 is provided between the vertical baffles 8 on both sides of the stacked heat dissipation aluminum plates 9. A number of fans 25 are arranged on the connecting plate 24. The fans 25 continuously blow air to the heat dissipation aluminum plate 9 to continuously cool down during the stacking process. The products lifted to the best position are grabbed by the sliding grasping device 7 beside and placed on the conveying rack 6. The conveying rack 6 can be a conveying structure such as a belt conveyor. After the injection molded product is conveyed away, the top heat dissipation aluminum plate 9 is grabbed by the sliding grasping device 7 and placed on the top plate 15 of the lower sliding plate to continue loading products.

[0031] In this device, after the manipulator 1 grabs the products from two injection molding machines 3, it sends them to the gate cutting device 5 to cut the gates. Then, it is grabbed by the manipulator 1 and placed on the palletizing table 4 for weighing. After weighing, it pushes the sliding plate 13 to drive the heat dissipation aluminum plate 9 to jack up the accommodation cavity and then palletize. During the palletizing process, the fans 25 continuously blow air for heat dissipation, and the upper and lower heat dissipation aluminum plates 9 are pressed tightly to cool down. On the one hand, it improves the heat dissipation efficiency, and on the other hand, it can slightly squeeze and shape the products to prevent warping due to uneven temperature drop during the cooling process. The products that reach the top after palletizing are grabbed by the sliding grasping device 7 and placed on the conveyor belt, and then the heat dissipation aluminum plate 9 is grabbed and placed on the lower top plate 15 for continued reuse. After the injection molding of the injection molding machine 3 is initially completed, the products can be taken out and cooled, and the cooling is synchronized with the injection molding, greatly improving the work efficiency.

Claims

1. An online gate cutting weighing palletizer, comprising a manipulator located on the side of at least one injection molding machine, the manipulator is connected to a material grabbing device, the manipulator controls the material grabbing device to take materials in the injection molding machine, characterized in that: It also includes a stacking platform and a conveying frame, wherein the stacking platform is fixedly connected to the stacking frame, and a sliding grabbing device is provided on one side of the stacking frame, and the sliding grabbing device grabs the product from the stacking frame to the conveying frame; The stacking rack comprises vertical baffles arranged in a square shape, the vertical baffles forming a receiving cavity for receiving the stacked heat dissipation aluminum plates, and limiting latches are arranged on both sides of the bottom of the receiving cavity; The stacking platform is provided with an opening, and slide rails are provided on both sides of the opening. A slide plate is slidably connected to the slide rail, and a push-pull cylinder is connected to the slide plate, and the push-pull cylinder pulls the slide plate to the bottom of the accommodating cavity; the slide plate is connected to a lifting mechanism, and a top plate is provided on the lifting mechanism for supporting the heat dissipation aluminum plate, and the lifting mechanism drives the heat dissipation aluminum plate to rise to the upper part of the limit tongue.

2. The online gate-cutting weighing and palletizing machine according to claim 1, characterized in that The limiting latch comprises a shell, a telescopic block is arranged in the shell, one end of the telescopic block is provided with a spring and pressed in the shell, and the other end is provided with a wedge-shaped surface and extends out of the shell, and the wedge-shaped surface faces downward.

3. The online gate-cutting weighing and palletizing machine according to claim 1, wherein The lifting mechanism comprises a lifting cylinder fixed on the slide plate, the output end of the lifting cylinder is fixedly connected to the top plate, a plurality of guide pillars are arranged between the top plate and the slide plate, and a shifting piece is arranged on the side of the top plate away from the accommodating cavity.

4. The online gate-cutting weighing and palletizing machine according to claim 1, characterized in that, A through hole is arranged at the center of the heat dissipation aluminum plate.

5. The online gate-cutting weighing and palletizing machine according to claim 1, wherein, A connecting plate is provided between adjacent vertical baffles, and a plurality of fans are arranged on the connecting plate.

6. The in-line gate shearing, weighing and palletizing machine according to claim 1, characterized in that, Lifting and weighing cylinders are arranged on both sides of the opening of the stacking platform, and the output ends of the lifting and weighing cylinders are connected to lifting plates, and weighing sensors are arranged on the lifting plates.

7. The online gate-cutting weighing and palletizing machine according to claim 1, wherein The sliding grasping device comprises a slide table, a slider of the slide table is connected to a vertical module, the vertical module is connected to a plate body, the plate body is respectively connected to a first pair of clamping cylinders around, and the output end of the first pair of clamping cylinders is connected to a first clamping plate.

8. The online gate-cutting weighing and palletizing machine according to claim 1, characterized in that, The material grabbing device includes a long plate, one end of which is provided with a clamping cylinder, the output end of the clamping cylinder is connected to a clamping plate, an arc groove is provided on the opposite side of the clamping plate, a second pair of clamping cylinders is provided on the opposite side of the long plate, and the output end of the second pair of clamping cylinders is connected to a second clamping plate.

9. The inline gate shearing, weighing and palletizing machine according to claim 1, wherein A nozzle cutting device is also provided on the moving path of the manipulator, and the nozzle cutting device includes a placing table, a downward pressure cylinder is provided on the placing table, a cutter is connected to the output end of the downward pressure cylinder, a sliding mechanism is provided on the placing table, and a placing plate is provided on the sliding mechanism.

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