Manipulator taking and placing device of injection molding machine

Abstract

The utility model relates to the technical field of manipulators, and discloses a manipulator pick-and-place device of an injection molding machine, which comprises an outer cylinder, a bearing is fixedly mounted on one side in the outer cylinder, an inner cylinder is rotatably connected in the bearing, a rotating component is arranged in the inner cylinder, a clamping plate is rotatably connected in the rotating component, and the clamping plate is rotatably connected in the outer cylinder. And electric push rods are fixedly installed on the two sides of the exterior of the inner cylinder, hinges are fixedly installed at the output ends of the electric push rods and fixedly installed on the inner sides of the clamping plates, and the electric push rods are hinged to the clamping plates through the hinges. Compared with the prior art, the clamping device has the following advantages and effects that the memory foam is arranged in the rubber leather sheath and wraps the clamped injection molding part, so that the injection molding part has a protective property in the clamping process, the clamping device can clamp the injection molding part, the clamping tightness is extremely high, and the service life of the injection molding part is prolonged. And the phenomenon that the injection molding part falls off in the clamping process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a robotic arm picking and placing device for an injection molding machine. Background Technology

[0002] An injection molding machine is a major molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics. When it is working, it needs to melt solid raw materials and then inject them into the mold through the feeding pipe and nozzle. After molding, the injection molded parts need to be transported to the next station for further processing.

[0003] In the prior art, such as the Chinese patent publication number CN116945141B, a multi-axis robotic arm pick-and-place device for injection molding machines is disclosed, which relates to the field of multi-axis robotic arm technology. It includes a mounting base, a drive disk at the upper end of the mounting base, a first drive section at the upper end of the drive disk, a controller on the first drive section, and a connecting shaft at the upper end of the first drive section; drive cylinders are provided on both sides of the connecting shaft, and a second drive section is provided above the connecting shaft; a telescopic shaft is provided on one side of the second drive section, and a connector is provided on the side of the telescopic shaft away from the second drive section; a pick-and-place mechanism is fixedly installed on the side of the connector away from the telescopic shaft; the pick-and-place mechanism includes a fixed disk, which is fixedly connected to the connector, and side blocks are evenly and equidistantly fixedly installed on the side wall of the fixed disk, so that if an object falls during clamping and transfer, it can be collected by the first and second collecting strips, effectively avoiding the possibility of the object falling and being damaged due to unstable clamping.

[0004] However, existing robotic arm pick-and-place devices are prone to loosening when gripping injection molded parts, resulting in poor gripping effect. In addition, existing robotic arms can only achieve the effects of extension, lateral movement and gripping, but cannot be rotated, which reduces the gripping sensitivity. Therefore, the above problems need to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a robotic arm for injection molding machines, which has a good clamping effect.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a robotic arm for an injection molding machine, comprising an outer cylinder, a bearing fixedly installed on one side inside the outer cylinder, an inner cylinder rotatably connected inside the bearing, a rotating assembly inside the inner cylinder, a clamping plate rotatably connected inside the rotating assembly, electric push rods fixedly installed on both sides outside the inner cylinder, a hinge fixedly installed at the output end of the electric push rod, the hinge fixedly installed on the inner side of the clamping plate, the electric push rods being hinged to the clamping plate via the hinge, a cylinder fixedly installed on the outer side of the clamping plate, a push plate fixedly connected at the output end of the cylinder, a spring fixedly connected on the outer side of the push plate, a rubber sleeve fixedly connected to one side of the spring, and memory foam disposed inside the rubber sleeve.

[0007] By adopting the above technical solution, the electric push rod is installed on the outside of the inner cylinder. The output end of the electric push rod is hinged to the inside of the clamping plate. When clamping the injection molded part, the electric push rod is activated, causing it to push the clamping plate to move. At this time, the clamping plate will rotate around the hinge. The two clamping plates are symmetrical to each other. After the clamping plates are rotated to a horizontal position, the two clamping plates will cover the injection molded part. The cylinder is then activated, causing it to push the push plate and rubber sleeve to extend and retract. The number of push plates and rubber sleeves... There are two rubber sleeves. The rubber sleeves will contact the injection molded part. The movement of the rubber sleeves can clamp the injection molded part. At this time, the spring will be compressed, so that the rubber sleeves and the injection molded part will generate tension force, achieving a tight clamping effect. Memory foam is placed inside the rubber sleeves, which wraps around the injection molded part, making the injection molded part protective during clamping. Therefore, this device can not only clamp the injection molded part, but also clamp it very tightly, preventing the injection molded part from falling off during clamping.

[0008] A further feature of this invention is that the number of clamping plates is two, and the two clamping plates are symmetrical to each other.

[0009] By adopting the above technical solution, two clamping plates are set on the left and right sides of the inner cylinder, and the injection molded part is clamped by flipping the two clamping plates.

[0010] A further feature of this invention is that the rotating assembly includes a connecting plate, and a rotating shaft is rotatably connected inside the connecting plate.

[0011] By adopting the above technical solution, the clamping plate is sleeved on the outside of the rotating shaft, and the clamping plate is rotatably connected to the inside of the connecting plate through the rotating shaft.

[0012] A further feature of this invention is that an installation groove is provided on the other side of the inner cavity of the outer cylinder, and a connecting cylinder is fixedly connected inside the installation groove.

[0013] By adopting the above technical solution, the inner cavity of the outer cylinder is provided with an installation groove that matches the connecting cylinder, and the connecting cylinder is fixed inside the outer cylinder through the installation groove.

[0014] A further feature of this invention is that a motor is fixedly installed inside the connecting cylinder, and a first gear is fixedly connected to the output end of the motor.

[0015] By adopting the above technical solution, the motor is started, causing the motor to drive the first gear to rotate.

[0016] A further feature of this invention is that a second gear is fixedly installed at the center of the top of the inner cylinder, and the first gear and the second gear mesh with each other.

[0017] By adopting the above technical solution, the first gear is set below the connecting cylinder, and the second gear is fixed at the center of the top of the inner cylinder. When the motor drives the first gear to rotate, the second gear will drive the inner cylinder to rotate, thereby enabling the injection molded part inside the clamping plate to be rotated in all directions. According to the landing point requirements of the injection molded part, the injection molded part is rotated, eliminating the need for the operator to change the position of the injection molded part and improving the clamping sensitivity of the injection molded part.

[0018] A further feature of this invention is that a mounting base is fixedly connected to the top of the connecting cylinder, and a mounting block is snapped into the interior of the mounting base.

[0019] By adopting the above technical solution, the mounting base is fixed above the connecting cylinder, and the mounting block is snapped into the interior of the mounting base.

[0020] A further feature of this invention is that both the mounting base and the mounting block have cavities inside, a screw is inserted into the cavity, and a nut is threaded onto the outside of the screw.

[0021] By adopting the above technical solution, the screw is inserted through the cavity into the interior of the mounting base and the mounting block, and the screw is fixed inside the mounting base and the mounting block by the nut. The mounting block is connected to the moving mechanism, thereby enabling the device to move.

[0022] A further feature of this invention is that a positioning plate is fixedly connected to the outside of the electric push rod, and a screw pin is threadedly connected to the inside of the positioning plate.

[0023] By adopting the above technical solution, the screw pin is threaded to the inside of the positioning plate, so that the screw pin extends into the inside of the inner cylinder, thereby fixing the electric push rod to the outside of the inner cylinder.

[0024] A further feature of this invention is that a cylinder frame is fixedly connected to the outer side of the clamping plate, and the cylinder is fixedly connected inside the cylinder frame.

[0025] By adopting the above technical solution, the cylinder is fixed to the outside of the clamping plate by the cylinder bracket, thereby improving the stability of the cylinder during operation.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of an outer cylinder, bearing, inner cylinder, rotating assembly, connecting plate, rotating shaft, clamping plate, electric push rod, hinge, cylinder, push plate, spring, rubber sleeve, and memory foam, allows the electric push rod to be installed on the outside of the inner cylinder. The output end of the electric push rod is hinged to the inside of the clamping plate via the hinge. When clamping the injection molded part, the electric push rod is activated, causing it to push the clamping plate to move. At this time, the clamping plate will rotate around the hinge, with the two clamping plates symmetrical to each other. When the clamping plates are rotated to a horizontal position, the two clamping plates will cover the injection molded part. The cylinder is then activated, causing... The cylinder pushes the push plate and rubber sleeve to extend and retract. There are two push plates and rubber sleeves. The rubber sleeves will contact the injection molded part. The movement of the rubber sleeves can clamp the injection molded part. At this time, the spring will be compressed, so that the rubber sleeve and the injection molded part will generate tension force, achieving a tight clamping effect. Memory foam is placed inside the rubber sleeve, which wraps the injection molded part, making the injection molded part protective during the clamping process. Therefore, this device can not only clamp the injection molded part, but also clamp it very tightly, preventing the injection molded part from falling off during the clamping process.

[0028] 2. This utility model, through the arrangement of the connecting cylinder, motor, first gear and second gear, has an installation groove inside the outer cylinder that matches the connecting cylinder. The connecting cylinder is fixed inside the outer cylinder through the installation groove. When the motor is started, it drives the first gear to rotate. The first gear is located below the connecting cylinder, and the second gear is fixed at the center of the top of the inner cylinder. When the motor drives the first gear to rotate, the second gear will drive the inner cylinder to rotate, thereby enabling the injection molded part inside the clamping plate to be rotated in all directions. According to the landing point requirements of the injection molded part, the injection molded part is rotated, eliminating the need for the operator to reposition the injection molded part and improving the clamping sensitivity of the injection molded part. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a top view of the bearing structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the rotating assembly of this utility model;

[0033] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0034] In the diagram, 1. Outer cylinder; 2. Bearing; 3. Inner cylinder; 4. Rotating assembly; 41. Connecting plate; 42. Shaft; 5. Clamping plate; 6. Electric push rod; 7. Hinge; 8. Cylinder; 9. Push plate; 10. Spring; 11. Rubber sleeve; 12. Memory foam; 13. Connecting cylinder; 14. Motor; 15. First gear; 16. Second gear; 17. Mounting base; 18. Mounting block; 19. Screw; 20. Nut; 21. Positioning plate; 22. Screw pin; 23. Cylinder bracket. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A robotic arm for an injection molding machine includes an outer cylinder 1. A bearing 2 is fixedly installed on one side inside the outer cylinder 1. An inner cylinder 3 is rotatably connected inside the bearing 2. A rotating assembly 4 is disposed inside the inner cylinder 3. A clamping plate 5 is rotatably connected inside the rotating assembly 4. Electric push rods 6 are fixedly installed on both sides outside the inner cylinder 3. A hinge 7 is fixedly installed at the output end of the electric push rod 6. The hinge 7 is fixedly installed on the inner side of the clamping plate 5. The electric push rod 6 is hinged to the clamping plate 5 through the hinge 7. A cylinder 8 is fixedly installed on the outer side of the clamping plate 5. A push plate 9 is fixedly connected to the output end of the cylinder 8. A spring 10 is fixedly connected to the outer side of the push plate 9. A rubber sleeve 11 is fixedly connected to one side of the spring 10. Memory foam 12 is disposed inside the rubber sleeve 11. The push rod 6 is installed on the outside of the inner cylinder 3. The output end of the electric push rod 6 is hinged to the inside of the clamping plate 5 via the hinge 7. When clamping the injection molded part, the electric push rod 6 is activated, causing it to push the clamping plate 5 to move. At this time, the clamping plate 5 will rotate around the hinge 7. The two clamping plates 5 are symmetrical to each other. When the clamping plates 5 are rotated to a horizontal position, the two clamping plates 5 will cover the injection molded part. The cylinder 8 is activated, causing it to push the push plate 9 and the rubber sleeve 11 to extend and retract. There are two push plates 9 and two rubber sleeves 11. The rubber sleeve 11 will contact the injection molded part. The movement of the rubber sleeve 11 can clamp the injection molded part. At this time, the spring 10 will be contracted, so that the rubber sleeve 11 and the injection molded part will generate tension force. To achieve a tight clamping effect, the memory foam 12 is placed inside the rubber sleeve 11, forming a protective enclosure for the injection molded part during clamping. This ensures the device not only clamps the injection molded part effectively but also provides a very strong clamping grip, preventing the part from falling off. Two clamping plates 5 are used, symmetrically positioned on the left and right sides of the inner cylinder 3. The rotation of the two clamping plates 5 clamps the injection molded part. The rotating assembly 4 includes a connecting plate 41, with a rotating shaft 42 rotatably connected inside the connecting plate 41. The clamping plates 5 are sleeved on the outside of the rotating shaft 42 and rotatably connected to the inside of the connecting plate 41 via the rotating shaft 42. The outer cylinder 1 is internally... On the other side, an installation groove is provided, and a connecting cylinder 13 is fixedly connected inside the installation groove. An installation groove adapted to the connecting cylinder 13 is provided inside the outer cylinder 1, and the connecting cylinder 13 is fixed inside the outer cylinder 1 through the installation groove. A motor 14 is fixedly installed inside the connecting cylinder 13, and a first gear 15 is fixedly connected to the output end of the motor 14. Starting the motor 14 causes the motor 14 to drive the first gear 15 to rotate. A second gear 16 is fixedly installed at the center of the top of the inner cylinder 3. The first gear 15 and the second gear 16 mesh. The first gear 15 is located below the connecting cylinder 13, and the second gear 16 is fixed at the center of the top of the inner cylinder 3. When the motor 14 drives the first gear 15 to rotate, the second gear 16 will drive the inner cylinder 3 to rotate.This allows the injection molded part inside the clamping plate 5 to be rotated omnidirectionally. Based on the required landing point, the injection molded part is rotated without requiring manual repositioning, improving the clamping sensitivity. A mounting base 17 is fixedly connected to the top of the connecting cylinder 13. A mounting block 18 is snapped into the interior of the mounting base 17. The mounting base 17 is fixed above the connecting cylinder 13. The mounting block 18 is snapped into the interior of the mounting base 17. Both the mounting base 17 and the mounting block 18 have cavities inside. A screw 19 is inserted into the interior of each cavity. A nut 20 is threaded onto the exterior of the screw 19. The screw 19 passes through the cavity into the interior of the mounting base 17 and the mounting block 18. Nut 20 secures screw 19 within mounting base 17 and mounting block 18. Mounting block 18 connects to the moving mechanism, enabling displacement of the device. A positioning plate 21 is externally fixed to the electric push rod 6. A screw pin 22 is threaded into the positioning plate 21, extending into the inner cylinder 3, thus fixing the electric push rod 6 to the outside of the inner cylinder 3. A cylinder frame 23 is fixedly connected to the outside of clamping plate 5. Cylinder 8 is fixedly connected inside cylinder frame 23, and is thus fixed to the outside of clamping plate 5 via cylinder frame 23, improving the stability of cylinder 8 during operation.

[0037] In this invention, the electric push rod 6 is installed on the outside of the inner cylinder 3. The output end of the electric push rod 6 is hinged to the inside of the clamping plate 5 via a hinge 7. When clamping the injection molded part, the electric push rod 6 is activated, causing it to push the clamping plate 5 to move. At this time, the clamping plate 5 will rotate around the hinge 7. The two clamping plates 5 are symmetrical to each other. When the clamping plates 5 are rotated to a horizontal position, the two clamping plates 5 will cover the injection molded part. The cylinder 8 is activated, causing it to push the push plate 9 and the rubber sleeve 11 to extend and retract. There are two push plates 9 and two rubber sleeves 11. The rubber sleeve 11 will contact the injection molded part. The movement of the rubber sleeve 11 can clamp the injection molded part. At this time, the spring 10 will be contracted, so that the rubber sleeve 11 and the injection molded part generate tension, achieving a tight clamping effect. Memory foam 12 is placed inside the rubber sleeve 11. The device encloses the injection molded part, providing protection during clamping. This ensures the device not only clamps the part effectively but also provides a strong grip, preventing it from falling off. The outer cylinder 1 has an internal mounting groove that matches the connecting cylinder 13. The connecting cylinder 13 is fixed inside the outer cylinder 1 via this groove. The motor 14 is started, driving the first gear 15 to rotate. The first gear 15 is located below the connecting cylinder 13. The second gear 16 is fixed at the center of the top of the inner cylinder 3. When the motor 14 drives the first gear 15 to rotate, the second gear 16 rotates the inner cylinder 3, allowing the injection molded part inside the clamping plate 5 to rotate omnidirectionally. The part is rotated according to its desired landing point, eliminating the need for manual repositioning and improving clamping sensitivity.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robotic arm for picking up and placing items in an injection molding machine, comprising an outer cylinder (1), characterized in that: A bearing (2) is fixedly installed on one side inside the outer cylinder (1). An inner cylinder (3) is rotatably connected inside the bearing (2). A rotating assembly (4) is provided inside the inner cylinder (3). A clamping plate (5) is rotatably connected inside the rotating assembly (4). Electric push rods (6) are fixedly installed on both sides outside the inner cylinder (3). A hinge (7) is fixedly installed at the output end of the electric push rod (6). The hinge (7) is fixedly installed on the inner side of the clamping plate (5). The electric push rod (6) is hinged to the clamping plate (5) through the hinge (7). A cylinder (8) is fixedly installed on the outer side of the clamping plate (5). A push plate (9) is fixedly connected at the output end of the cylinder (8). A spring (10) is fixedly connected on the outer side of the push plate (9). A rubber sleeve (11) is fixedly connected on one side of the spring (10). Memory foam (12) is provided inside the rubber sleeve (11).

2. The robotic arm pick-and-place device for an injection molding machine according to claim 1, characterized in that: The number of clamping plates (5) is two, and the two clamping plates (5) are symmetrical to each other.

3. The robotic arm for picking up and placing objects in an injection molding machine according to claim 1, characterized in that: The rotating assembly (4) includes a connecting plate (41), and a rotating shaft (42) is rotatably connected inside the connecting plate (41).

4. The robotic arm pick-and-place device for an injection molding machine according to claim 1, characterized in that: An installation groove is provided on the other side of the inner cavity of the outer cylinder (1), and a connecting cylinder (13) is fixedly connected inside the installation groove.

5. The robotic arm for picking up and placing objects in an injection molding machine according to claim 4, characterized in that: A motor (14) is fixedly installed inside the connecting cylinder (13), and a first gear (15) is fixedly connected to the output end of the motor (14).

6. The robotic arm pick-and-place device for an injection molding machine according to claim 5, characterized in that: A second gear (16) is fixedly installed at the center of the top of the inner cylinder (3), and the first gear (15) and the second gear (16) mesh with each other.

7. The robotic arm pick-and-place device for an injection molding machine according to claim 4, characterized in that: The top of the connecting cylinder (13) is fixedly connected to a mounting base (17), and a mounting block (18) is snapped into the inside of the mounting base (17).

8. The robotic arm for picking up and placing objects in an injection molding machine according to claim 7, characterized in that: Both the mounting base (17) and the mounting block (18) have cavities inside, and a screw (19) is inserted into the cavity. A nut (20) is threaded onto the outside of the screw (19).

9. A robotic arm for picking up and placing items in an injection molding machine according to claim 1, characterized in that: The electric push rod (6) is externally fixedly connected to a positioning plate (21), and the positioning plate (21) is internally threaded with a screw pin (22).

10. A robotic arm for picking up and placing items in an injection molding machine according to claim 5, characterized in that: A cylinder frame (23) is fixedly connected to the outside of the clamping plate (5), and the cylinder (8) is fixedly connected inside the cylinder frame (23).

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