A high-performance automatic unloading robot

Abstract

The present invention discloses a high-performance automatic unloading robot, characterized by comprising a frame, an unloading assembly mounted on the frame, and a drive assembly, the drive assembly driving the unloading assembly to move horizontally and vertically on the frame; the unloading assembly comprising a bracket, a material head grabbing mechanism mounted on the bracket, and multiple sets of brushes; the material head grabbing mechanism comprising a clamping jaw and a material grabbing cylinder; the top of the material grabbing cylinder being mounted on the bracket, the clamping jaw being mounted on an output shaft at the bottom of the material grabbing cylinder; the material grabbing cylinder controlling the opening and closing of the clamping jaw; and multiple sets of brushes being spaced from front to back below the clamping jaw, with the bristles of the brushes facing right. The present invention improves the stability and convenience of injection molding unloading, reduces the labor intensity of operators, and prevents mold wear.

Description

Technical Field

[0001] The invention relates to the field of injection molding, and in particular to a high-performance automatic blanking manipulator. Background Art

[0002] Injection molding machines are typically used to produce plastic products. For smaller plastic products, to improve production efficiency and reduce costs, a single mold with multiple cavities is often used, allowing for the simultaneous production of multiple products per injection molding cycle. For products made from relatively soft materials or lightweight materials, static electricity can cause some product to stick to the mold surface after the mold is opened, even after the ejector pins eject the product. Because the mold has multiple cavities, the injection molding head is relatively long and sometimes struggles to be fully ejected with the ejector pins, making it difficult to remove. This necessitates manual assistance in removing the material and removing the head, or the use of a robotic arm to remove the head and blow air from a nozzle to remove the product. This method can sometimes prevent the product from being blown away from the mold, causing the product to harden during subsequent injection molding and mold closing. Repeatedly, this can lead to scratches on the mold cavity, resulting in defective products and increased maintenance costs. In order to prevent this problem from occurring, operators are required to observe, which requires high labor intensity and is also relatively costly. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-performance automatic unloading robot. By using this structure, the unloading effect and quality can be effectively improved, automatic unloading can be realized, the labor intensity of operators can be reduced, and damage to the mold can be prevented.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a high-performance automatic unloading manipulator, comprising a frame and a unloading assembly and a driving assembly mounted on the frame, wherein the driving assembly drives the unloading assembly to move horizontally and vertically on the frame;

[0005] The unloading assembly includes a bracket, a material head grabbing mechanism installed on the bracket and multiple groups of brushes. The material head grabbing mechanism includes a clamp and a grabbing cylinder. The top of the grabbing cylinder is installed on the bracket, and the clamp is installed on the output shaft at the bottom of the grabbing cylinder. The grabbing cylinder controls the opening and closing of the clamp. Multiple groups of brushes are arranged at intervals from front to back below the clamp, and the bristles of the brush are arranged to the right.

[0006] In the above technical solution, the bracket includes a mounting block, a height adjustment mechanism and two groups of transverse connecting plates. The middle part of the top surface of the mounting block is connected to the driving assembly. The driving assembly drives the mounting block to move laterally and vertically. A vertical plate is provided at the bottom of the mounting block. The top of the vertical plate is vertically connected to the middle part of the bottom surface of the mounting block. The grabbing cylinder is installed on the vertical plate; the right ends of the two groups of transverse connecting plates are vertically installed on the top of the mounting block, and a gap is provided between the left side of the transverse connecting plate and the left side of the mounting block. The top of the height adjustment mechanism is connected to the two groups of transverse connecting plates. The height adjustment mechanism is arranged parallel to the left side of the vertical plate, and multiple groups of brushes are installed on the right side of the bottom of the height adjustment mechanism.

[0007] In the above technical solution, the two groups of the transverse connecting plates are arranged parallel to each other, and a transverse strip through groove is provided in the middle of each group of the transverse connecting plates. Two groups of first screw holes are provided on the top of the height adjustment mechanism, and each group of the first screw holes is arranged opposite to a group of the transverse strip through grooves. The top of the height adjustment mechanism is against the bottom surfaces of the two groups of the transverse connecting plates, and a first bolt is inserted in each group of the transverse strip through grooves. The bottom of the first bolt is screwed to a group of the first screw holes, and the first bolt connects the height adjustment mechanism to the transverse connecting plate.

[0008] In the above technical solution, the height adjustment mechanism includes a top plate, a bottom plate and two groups of vertical plates. The two groups of the first screw holes are respectively arranged at intervals on the top surface of the top plate, and the top plate is connected to the two groups of the horizontal connecting plates via the first bolts; the bottom plate is arranged parallel to and directly below the top plate, the two groups of the vertical plates are arranged parallel to each other, the bottoms of the two groups of the vertical plates are vertically connected to the top surface of the bottom plate, the tops of the two groups of the vertical plates are connected to the right side of the top plate, and multiple groups of the brushes are installed at intervals from front to back on the right side of the bottom plate.

[0009] In the above technical solution, a second vertical strip through groove is provided in the middle of each group of the vertical plates, and two groups of second screw holes are provided at intervals on the right side of the top plate. Each group of the second screw holes is respectively arranged below the side of a group of the horizontal connecting plates. A second bolt is inserted into each group of the second vertical strip through grooves, and the left side of the second bolt is screwed to a group of the second screw holes. The second bolt connects the vertical plate to the top plate.

[0010] In the above technical solution, the base plate is provided with multiple groups of through holes from front to back, and a limiting screw hole is provided on the left side of each group of brushes. A limiting bolt is screwed on each group of brushes, and the right side of the limiting bolt passes through a group of the through holes and is screwed to the limiting screw hole corresponding to the brush. The limiting bolt locks the brush and installs it on the right side of the base plate.

[0011] In the above technical solution, the right end of the bristle is arranged at the right end below the side of the clamping claw.

[0012] In the above technical solution, the driving assembly includes a vertical cylinder, a slider, a motor and a transverse ball screw. The output shaft of the vertical cylinder is arranged perpendicular to the transverse ball screw. A transverse slide rail is provided on the frame. The transverse ball screw is arranged parallel to the side of the transverse slide rail, and the transverse ball screw is rotatably connected to the frame. The output shaft of the motor is connected to one end of the transverse ball screw; the slider is slidably arranged on the transverse slide rail, and the slider is rotatably connected to the transverse ball screw, and the transverse ball screw drives the slider to move on the transverse slide rail; the vertical cylinder is installed on the top of the slider, the mounting block is arranged directly below the slider, and the output shaft at the bottom of the vertical cylinder passes through the slider and is connected to the top of the mounting block.

[0013] In the above technical solution, the slider is also provided with a vertical guide hole, which is arranged perpendicular to the horizontal slide rail; a vertical guide rod is movably inserted into the vertical guide hole, the bottom of the vertical guide rod is connected to the top of the mounting block, and the top of the vertical guide rod is arranged directly above the slider.

[0014] In the above technical solution, a limit nut is screwed on the top of the vertical guide rod, and an annular rubber block is installed on the top of the slider. The annular rubber block is arranged on the outside of the vertical guide hole. When the vertical cylinder output shaft is extended, the bottom surface of the limit nut is against the top surface of the annular rubber block.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] 1. The clamping claws of this invention can grab and remove the stub from the mold, and the brush can clean the mold surface, scraping off any product stuck to it. This prevents product from getting stuck and damaging the mold, reducing maintenance costs. Furthermore, the operator does not need to clean the mold, reducing labor intensity and costs.

[0017] 2. The present invention can effectively improve the efficiency and quality of material feeding;

[0018] 3. The number and position of the brushes in the present invention are easy to adjust and can be adjusted according to the product conditions to ensure the product blanking effect. While ensuring the blanking effect, the brushes can also prevent the mold from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the first embodiment of the present invention;

[0020] Figure 2 It is a left view of the blanking assembly in embodiment 1 of the present invention.

[0021] Among them: 1. Frame; 2. Bracket; 3. Brush; 4. Clamp; 5. Grabbing Cylinder; 6. Bristles; 7. Mounting Block; 8. Horizontal Connecting Plate; 9. Vertical Plate; 10. Horizontal Strip Groove; 11. First Screw Hole; 12. First Bolt; 13. Top Plate; 14. Bottom Plate; 15. Vertical Plate; 16. Second Vertical Strip Groove; 17. Second Screw Hole; 18. Second Bolt; 19. Through Hole; 20. Limiting Screw Hole; 21. Limiting Bolt; 22. Vertical Cylinder; 23. Slider; 24. Motor; 25. Horizontal Ball Screw; 26. Horizontal Slide Rail; 27. Vertical Guide Hole; 28. Vertical Guide Rod; 29. ​​Limiting Nut; 30. Annular Rubber Block. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Example 1: See Figure 1 、 2 As shown, a high-performance automatic unloading manipulator includes a frame 1 and a unloading assembly and a driving assembly mounted on the frame, wherein the driving assembly drives the unloading assembly to move horizontally and vertically on the frame;

[0024] The unloading assembly includes a bracket 2, a material head grabbing mechanism installed on the bracket and multiple groups of brushes 3. The material head grabbing mechanism includes a clamp 4 and a grabbing cylinder 5. The top of the grabbing cylinder is installed on the bracket, and the clamp is installed on the output shaft at the bottom of the grabbing cylinder. The grabbing cylinder controls the opening and closing of the clamp. Multiple groups of brushes are arranged at intervals from front to back below the clamp, and the bristles 6 of the brush are arranged to the right.

[0025] In this embodiment, in actual use, the frame will be set above the injection molding machine. When the blanking assembly moves to the left, it will be directly above the mold. After the mold is opened (the movable mold moves to the right, and there is a gap between it and the fixed mold), the product will be in the movable mold, and then the blanking rod of the movable mold will extend to push the product to the left to separate from the mold cavity of the movable mold. The end of the slug is outside the left side of the movable mold. However, some products will still stick to the movable mold, and the slug will not fall off because it is soft. Therefore, the blanking assembly moves downward, and the clamping claw will face the slug. When the blanking assembly moves downward, the brush moves downward, and the right side of the brush is close to or in contact with the movable mold. The left side contacts, and all products stuck to the movable mold are swept downward by the brush and dropped. When the slug is inside the clamp, the brush will be under the movable mold, and then the grabbing cylinder drives the clamp to close, grab the slug, and then the blanking assembly moves upward, and the slug is grabbed by the clamp and separated from the movable mold. After the blanking assembly moves above the mold and above the injection molding machine, the drive assembly drives the blanking assembly to move toward the side of the injection molding machine, and after moving to the outside of the injection molding machine, the clamp opens, the slug falls, and then returns to its original position and moves to just above the mold. During this process, the mold is closed and the next group of products are injected, and the cycle continues. In this embodiment, the clamp is used to clamp the slug, and the product falls directly, so that the slug and the product can be separated. At the same time, even if the brush contacts the left side of the movable mold, it will not damage the mold. At the same time, it can also scrape and clean the product without damaging the product.

[0026] See also Figure 1 、 2 As shown, the bracket includes a mounting block 7, a height adjustment mechanism and two groups of transverse connecting plates 8. The middle part of the top surface of the mounting block is connected to the driving assembly, and the driving assembly drives the mounting block to move horizontally and vertically. A vertical plate 9 is provided at the bottom of the mounting block. The top of the vertical plate is vertically connected to the middle part of the bottom surface of the mounting block, and the grabbing cylinder is installed on the vertical plate; the right ends of the two groups of transverse connecting plates are vertically installed on the top of the mounting block, and a gap is provided between the left side of the transverse connecting plate and the left side of the mounting block. The top of the height adjustment mechanism is connected to the two groups of transverse connecting plates, and the height adjustment mechanism is arranged parallel to the left side of the vertical plate, and multiple groups of brushes are installed on the right side of the bottom of the height adjustment mechanism.

[0027] In this embodiment, the vertical plate is used for installing the material grabbing cylinder, and the horizontal plate is used for installing the height adjustment mechanism, and can also adjust the vertical height between the brush and the mounting block.

[0028] See also Figure 1 、 2As shown, the two groups of transverse connecting plates are arranged parallel to each other, and a transverse strip through groove 10 is provided in the middle of each group of transverse connecting plates. Two groups of first screw holes 11 are provided on the top of the height adjustment mechanism. The first screw holes in each group are arranged opposite to a group of transverse strip through grooves. The top of the height adjustment mechanism is against the bottom surfaces of the two groups of transverse connecting plates. A first bolt 12 is inserted into each group of transverse strip through grooves. The bottom of the first bolt is screwed to a group of the first screw holes. The first bolt connects the height adjustment mechanism to the transverse connecting plate.

[0029] In this embodiment, a transverse strip groove is provided on the transverse connecting plate, and the height adjustment mechanism is connected to the transverse connecting plate by using a first bolt. At the same time, the transverse distance between the height adjustment mechanism and the mounting block can be adjusted, that is, the transverse distance between the brush and the clamping jaw can be adjusted. In this way, the distance between the brush and the movable mold of the mold can be adjusted, and the transverse position of the brush can be adjusted according to the size of the mold. In this way, even if the right side of the brush is worn, the transverse distance between the right side of the brush and the right side of the clamping jaw can be adjusted to ensure that the brush can remove and push the product from the mold, thereby ensuring the cleaning quality of the product.

[0030] See also Figure 1 、 2 As shown, the height adjustment mechanism includes a top plate 13, a bottom plate 14 and two groups of vertical plates 15, the two groups of first screw holes are respectively arranged at intervals on the top surface of the top plate, and the top plate is connected to the two groups of horizontal connecting plates via the first bolts; the bottom plate is arranged in parallel directly below the top plate, the two groups of vertical plates are arranged parallel to each other, the bottoms of the two groups of vertical plates are vertically connected to the top surface of the bottom plate, the tops of the two groups of vertical plates are connected to the right side of the top plate, and multiple groups of brushes are installed at intervals from front to back on the right side of the bottom plate.

[0031] In this embodiment, the top plate is used to connect with two sets of horizontal connecting plates for adjusting the horizontal position, the bottom plate is used to install the brush, and the two sets of vertical plates are used to connect the top plate and the bottom plate.

[0032] See also Figure 1 、 2 As shown, a second vertical strip through groove 16 is provided in the middle of each group of the vertical plates, and two groups of second screw holes 17 are provided at intervals on the right side of the top plate. Each group of the second screw holes is respectively arranged below the side of a group of the horizontal connecting plates, and a second bolt 18 is inserted into each group of the second vertical strip through grooves. The left side of the second bolt is screwed to a group of the second screw holes, and the second bolt connects the vertical plate to the top plate.

[0033] By setting the second vertical strip groove and the second bolt, the vertical position between the bottom plate and the top plate can be adjusted, that is, the distance between the brush and the top plate and the clamping claw can be adjusted to adapt to molds of different heights and improve the scope of application.

[0034] See also Figure 1 、 2 As shown, the base plate is provided with a plurality of groups of through holes 19 from front to back, and a limiting screw hole 20 is provided on the left side of each group of brushes. A limiting bolt 21 is screwed on each group of brushes, and the right side of the limiting bolt passes through a group of the through holes and is screwed to the limiting screw hole corresponding to the brush. The limiting bolt locks the brush and installs it on the right side of the base plate.

[0035] By setting up multiple groups of through holes, brushes can be installed in corresponding through holes according to the width of the mold, the number of brushes can be adjusted, and brushes of different widths can be selected.

[0036] The right end of the brush bristles is positioned at the right end of the lower side of the clamping jaw. In this embodiment, two adjacent sets of brushes are positioned on either side of the hopper. This way, during the lowering of the material discharging assembly, the brush bristles avoid contact with the material head structure, causing the material head to face the clamping jaw. However, the right side of the brush bristles is positioned to the right of the clamping jaw. Even if the brushes come into contact with the left side of the movable mold, the clamping jaw will not touch the mold, preventing scratches.

[0037] See also Figure 1 The driving assembly includes a vertical cylinder 22, a slider 23, a motor 24 and a transverse ball screw 25. The output shaft of the vertical cylinder is arranged perpendicular to the transverse ball screw. A transverse slide rail 26 is provided on the frame. The transverse ball screw is arranged parallel to the side of the transverse slide rail, and the transverse ball screw is rotatably connected to the frame. The output shaft of the motor is connected to one end of the transverse ball screw; the slider is slidably arranged on the transverse slide rail, and the slider is rotatably connected to the transverse ball screw, and the transverse ball screw drives the slider to move on the transverse slide rail; the vertical cylinder is installed on the top of the slider, the mounting block is arranged directly below the slider, and the output shaft at the bottom of the vertical cylinder passes through the slider and is connected to the top of the mounting block.

[0038] When the motor drives the horizontal ball screw to rotate, it drives the slider and the blanking assembly to move horizontally on the horizontal slide rail. When the vertical cylinder output shaft extends and retracts, it drives the blanking assembly to move up and down, thereby realizing the movement of the blanking assembly on the X and Y axes.

[0039] See also Figure 1As shown, the slider is also provided with a vertical guide hole 27, which is arranged perpendicular to the transverse slide rail. A vertical guide rod 28 is movably inserted into the vertical guide hole. The bottom of the vertical guide rod is connected to the top of the mounting block, and the top of the vertical guide rod is located directly above the slider. The provision of the vertical guide rod and the vertical guide hole ensures the vertical upward and downward movement of the blanking assembly, ensuring the stability of the movement.

[0040] See also Figure 1 As shown, a limit nut 29 is threaded onto the top of the vertical guide rod, and an annular rubber block 30 is mounted on the top of the slider. This block is positioned outside the vertical guide hole. When the vertical cylinder output shaft is extended, the bottom surface of the limit nut abuts against the top surface of the annular rubber block. The limit nut limits the stroke of the vertical cylinder output shaft. Simultaneously, the annular rubber block cushions the limit nut, reducing rigid collisions between the limit nut and the slider, preventing wear and reducing noise.

Claims

1. A high-performance automatic unloading manipulator, characterized by: It includes a frame, a blanking assembly and a driving assembly installed on the frame, wherein the driving assembly drives the blanking assembly to move horizontally and vertically on the frame; The material unloading assembly includes a bracket, a material head grabbing mechanism installed on the bracket, and multiple groups of brushes. The material head grabbing mechanism includes a clamping claw and a material grabbing cylinder. The top of the material grabbing cylinder is installed on the bracket, and the clamping claw is installed on the output shaft at the bottom of the material grabbing cylinder. The material grabbing cylinder controls the opening and closing of the clamping claw. Multiple groups of brushes are arranged below the clamping claw from front to back at intervals, and the bristles of the brushes are arranged to the right. The right end of the bristle is arranged at the right end below the side of the clamping claw; When the blanking assembly moves downward, the right side of the brush approaches or contacts the left side of the movable mold, and the brush cleans and drops all the products stuck on the movable mold. When the material head is inside the clamp, the brush will be below the movable mold, and then the grabbing cylinder drives the clamp to close and grab the material head. Then the blanking assembly moves upward, and the clamp grabs the material head and separates it from the movable mold.

2. The high-performance automatic unloading manipulator according to claim 1 is characterized in that: The bracket includes a mounting block, a height adjustment mechanism and two groups of transverse connecting plates. The middle part of the top surface of the mounting block is connected to the driving assembly. The driving assembly drives the mounting block to move laterally and vertically. A vertical plate is provided at the bottom of the mounting block. The top of the vertical plate is vertically connected to the middle part of the bottom surface of the mounting block. The grabbing cylinder is installed on the vertical plate; the right ends of the two groups of transverse connecting plates are vertically installed on the top of the mounting block, and a gap is provided between the left side of the transverse connecting plate and the left side of the mounting block. The top of the height adjustment mechanism is connected to the two groups of transverse connecting plates. The height adjustment mechanism is arranged parallel to the left side of the vertical plate, and multiple groups of brushes are installed on the right side of the bottom of the height adjustment mechanism.

3. The high-performance automatic unloading manipulator according to claim 2 is characterized in that: The two groups of transverse connecting plates are arranged parallel to each other, and a transverse strip through groove is provided in the middle of each group of transverse connecting plates. Two groups of first screw holes are provided on the top of the height adjustment mechanism, and each group of first screw holes is arranged opposite to a group of transverse strip through grooves. The top of the height adjustment mechanism is against the bottom surfaces of the two groups of transverse connecting plates, and a first bolt is inserted in each group of transverse strip through grooves. The bottom of the first bolt is screwed to a group of the first screw holes, and the first bolt connects the height adjustment mechanism to the transverse connecting plate.

4. The high-performance automatic unloading manipulator according to claim 3 is characterized in that: The height adjustment mechanism includes a top plate, a bottom plate and two groups of vertical plates. The two groups of first screw holes are respectively arranged at intervals on the top surface of the top plate, and the top plate is connected to the two groups of horizontal connecting plates via the first bolts; the bottom plate is arranged parallel to and directly below the top plate, and the two groups of vertical plates are arranged parallel to each other. The bottoms of the two groups of vertical plates are vertically connected to the top surface of the bottom plate, and the tops of the two groups of vertical plates are connected to the right side of the top plate. Multiple groups of brushes are installed at intervals on the right side of the bottom plate from front to back.

5. The high-performance automatic unloading manipulator according to claim 4 is characterized in that: A second vertical strip through groove is provided in the middle of each group of the vertical plates, and two groups of second screw holes are provided at intervals on the right side of the top plate. Each group of the second screw holes is respectively arranged below the side of a group of the horizontal connecting plates. A second bolt is inserted into each group of the second vertical strip through grooves, and the left side of the second bolt is screwed to a group of the second screw holes. The second bolt connects the vertical plate to the top plate.

6. The high-performance automatic unloading manipulator according to claim 4 is characterized in that: The base plate is provided with multiple groups of through holes from front to back, and a limiting screw hole is provided on the left side of each group of brushes. A limiting bolt is screwed on each group of brushes, and the right side of the limiting bolt passes through a group of the through holes and is screwed to the limiting screw hole corresponding to the brush. The limiting bolt locks the brush and installs it on the right side of the base plate.

7. The high-performance automatic unloading manipulator according to claim 2, characterized in that: The driving assembly includes a vertical cylinder, a slider, a motor and a transverse ball screw. The output shaft of the vertical cylinder is arranged perpendicular to the transverse ball screw. A transverse slide rail is provided on the frame. The transverse ball screw is arranged parallel to the side of the transverse slide rail, and the transverse ball screw is rotatably connected to the frame. The output shaft of the motor is connected to one end of the transverse ball screw; the slider is slidably arranged on the transverse slide rail, and the slider is rotatably connected to the transverse ball screw, and the transverse ball screw drives the slider to move on the transverse slide rail; the vertical cylinder is installed on the top of the slider, the mounting block is arranged directly below the slider, and the output shaft at the bottom of the vertical cylinder passes through the slider and is connected to the top of the mounting block.

8. The high-performance automatic unloading manipulator according to claim 7, characterized in that: The slider is also provided with a vertical guide hole, which is arranged perpendicular to the horizontal slide rail; a vertical guide rod is movably inserted into the vertical guide hole, the bottom of the vertical guide rod is connected to the top of the mounting block, and the top of the vertical guide rod is arranged directly above the slider.

9. The high-performance automatic unloading manipulator according to claim 8, characterized in that: A limit nut is screwed on the top of the vertical guide rod, and an annular rubber block is installed on the top of the slider. The annular rubber block is arranged on the outside of the vertical guide hole. When the vertical cylinder output shaft is extended, the bottom surface of the limit nut is against the top surface of the annular rubber block.

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