Material taking manipulator for plastic product production

Abstract

The invention relates to the field of mechanical arms, in particular to a plastic product production material taking mechanical arm which comprises an arm body. The sealing cover is mounted on the arm body; the suction part comprises a main pipeline, at least two auxiliary pipelines connected with the main pipeline, and a distribution pipeline arranged in the sealing cover and connected with the auxiliary pipelines; each distribution pipeline is provided with an opening and closing valve, and each opening and closing valve comprises a valve cabin arranged on the corresponding distribution pipeline and a lifting core installed on the corresponding valve cabin; a monitoring part is arranged on each auxiliary pipeline; a blocking part is also arranged on the sealing cover; through the scheme, the monitoring part can monitor the change of gas flow, convert information into an electric signal and transmit the electric signal to the controller, and the controller drives and controls the stepping motor to work through the driver, so that the blocking part is in a closed state, and the blocking part can block a plastic product after the plastic product enters the sealing cover. And the plastic product is prevented from being separated from the sealing cover due to shaking during movement of the manipulator.

Description

Technical Field

[0001] The invention relates to the field of mechanical arms, in particular to a material-taking mechanical arm for producing plastic products. Background Art

[0002] When plastic products are produced, after the product is injection molded by an injection molding machine, the finished plastic product needs to be removed from the mold. Although existing molds are equipped with ejection mechanisms, plastic adhesion will still occur between the finished product and the mold, and it needs to be completely removed manually. Manual participation can easily cause safety accidents such as scalding.

[0003] When a robot is used for operation, if the clamping method is directly adopted, although the problem of scalding can be avoided, the plastic products that have just been formed can easily be deformed due to the clamping force, and most injection molded products are irregular, and the problem of slipping out of the hands can easily occur when the material is taken out by clamping. Therefore, the present invention proposes a plastic product production and taking material robot. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is that the material picking of the clamping robot is unstable.

[0005] The above technical problem is solved by the following technical solution: The present invention provides a material-retrieving robot for producing plastic products, which comprises an arm body; A closed cover mounted on the arm; The suction part includes a main pipeline, at least two auxiliary pipelines connected to the main pipeline, and a distribution pipeline connected to the auxiliary pipelines arranged in the closed cover; Each of the distribution pipelines is provided with an on-off valve, and the on-off valve comprises a valve cabin provided on the distribution pipeline, and a lifting core installed on the valve cabin; Each of the auxiliary pipelines is provided with a monitoring unit; The closure cover is also provided with a blocking portion; When the plastic product is sucked into the closed cover, the lifting core is pressed, and the lifting core is pressurized to close the distribution pipeline. The monitoring part can monitor the gas flow information of the secondary pipeline caused by the closure of the distribution pipeline, and the blocking part can close the closed cover according to the gas flow information.

[0006] In a preferred embodiment of the plastic product production material taking robot of the present invention: the valve cabin has two connecting ends connected to the distribution pipeline; The lifting core includes a valve plate arranged in the valve cabin, and an extension body connected to the valve plate and extending outside the valve cabin; When the extension body is pressed, the valve plate can change position to close the communication end.

[0007] In a preferred embodiment of the plastic product production material-retrieving robot of the present invention: the blocking portion includes a connecting member rotatably connected to the closing cover, and a shielding member capable of rotating synchronously with the connecting member.

[0008] In a preferred embodiment of the plastic product production material-retrieving robot of the present invention: a fixed axis body is fixed on the closing cover, and the connecting piece is rotatably connected to the fixed axis body.

[0009] In a preferred embodiment of the plastic product production and retrieving robot of the present invention: a sliding core is arranged in the auxiliary pipeline, and the sliding core and the blocking part are connected through a pulling part; In a natural state, the sliding core can block the secondary pipeline and the distribution pipeline.

[0010] In a preferred embodiment of the plastic product production material taking robot of the present invention: a connecting port is provided on the radial side wall of the sliding core, and when the sliding core moves upward relative to the auxiliary pipeline, the connecting port can connect the auxiliary pipeline and the distribution pipeline.

[0011] In a preferred embodiment of the plastic product production reclaiming robot of the present invention: the secondary pipeline includes an expanding diameter section and a shrinking diameter section, the expanding diameter section is connected to the shrinking diameter section through a first connecting point, and the shrinking diameter section is connected to the distribution pipeline through a second connecting point; In a natural state, the sliding core is located in the reduced diameter section, the first connecting point and the second connecting point are blocked, and when the sliding core moves upward relative to the secondary pipeline, the connecting port connects the first connecting point and the second connecting point.

[0012] In a preferred embodiment of the plastic product production material-retrieving robot of the present invention: a pressing ring is arranged on the sliding core, and an elastic member that abuts against the pressing ring is sleeved on the outside of the sliding core.

[0013] In a preferred embodiment of the plastic product production and feeding robot of the present invention: the pulling part includes a synchronous frame connected to the sliding core, and a convex column installed on the synchronous frame; a through groove is opened on the connecting member, and the convex column extends to the inside of the through groove.

[0014] In a preferred embodiment of the plastic product production material-retrieving robot of the present invention: the distribution pipeline has an air suction port, and the height of the air suction port is higher than the extension body.

[0015] The beneficial effect of the present invention is that: through the above scheme, the monitoring part can monitor the change of gas flow rate, convert the information into electrical signals and transmit it to the controller. The controller drives and controls the stepper motor through the driver to make the blocking part reach a closed state. After the plastic product enters the closed cover, the blocking part can prevent the plastic product from escaping from the closed cover due to the shaking of the manipulator during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention. Among them: Figure 1 The overall structure schematic diagram of the plastic product production and material taking robot in the present invention is shown; Figure 2 A schematic diagram of the internal structure of the sealing cover in the present invention is shown; Figure 3 The schematic diagram of the structure of the opening and closing valve and the blocking part in the present invention is shown; Figure 4 The specific structural diagram of the suction part in the present invention is shown; Figure 5 The specific structural schematic diagram of the distribution pipeline in the present invention is shown; Figure 6 The schematic diagram of the structure of the sliding core and the pulling part in the present invention is shown; Figure 7 The schematic diagram of the structure of the sliding core and the auxiliary pipeline in the present invention is shown; Figure 8 Shows Figure 3 Enlarged view of point A in the middle.

[0017] 100, arm body; 101, mounting base; 102, rotating seat; 103, upper arm; 104, lower arm; 105, wrist; 106, operating shaft; 200, closing cover; 201, fixed axis body; 300, suction part; 301, main pipeline; 302, auxiliary pipeline; 3021, expansion section; 3022, reduction section; 3023, first connection point; 3024, second connection point; 303, distribution pipeline; 3031, Inlet; 400, opening and closing valve; 401, valve cabin; 402, lifting core; 4021, valve plate; 4022, extension body; 403, connecting end; 500, monitoring part; 600, blocking part; 601, connecting piece; 6011, through groove; 602, shielding piece; 700, sliding core; 701, connecting port; 702, pressing ring; 703, elastic piece; 800, pulling part; 801, synchronous frame; 802, protruding column. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0019] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present invention.

[0020] Reference Figure 1 This embodiment provides a plastic product production material taking robot, including an arm body 100; the arm body 100 is composed of several parts connected by shafts, such as Figure 1 As shown, it mainly includes a mounting base 101, and the mounting base 101 can be directly mounted on the workbench of a vertical injection molding machine. A rotatable rotating base 102 is mounted on the mounting base 101, and a rotatable upper arm 103 is mounted on the rotating base 102. A rotatable lower arm 104 is mounted on the end of the upper arm 103 away from the rotating base 102, and a rotatable wrist 105 is mounted on the end of the lower arm 104 away from the upper arm 103. A rotatable operating shaft 106 is also mounted on the wrist 105. These connected components are rotatably connected by shaft connection, and a driving motor is arranged at the connection point to drive the rotation of these components by the driving motor.

[0021] like Figure 1 The plastic product production material-grabbing robot includes a closed cover 200, which is installed on the arm body 100; the closed cover 200 is a cover-shaped structure with an opening at the bottom end, and the closed cover 200 is fixedly installed on the operating shaft 106, preferably installed on the operating shaft 106 in a detachable manner, such as being installed on the operating shaft 106 by bolt and nut assembly. In this way, each arm body 100 can be equipped with closed covers 200 of different sizes, and only the closed cover 200 needs to be disassembled and removed for replacement.

[0022] Please refer to Figure 2The plastic product production material taking robot includes a suction part 300, which includes a main pipeline 301, at least two auxiliary pipelines 302 connected to the main pipeline 301, and a distribution pipeline 303 arranged in the closed cover 200 and connected to the auxiliary pipeline 302; the main function of the suction part 300 is to suck the air inside the closed cover 200, so that the air pressure inside the closed cover 200 is reduced. When working, through the movement of the arm body 100, the closed cover 200 can be covered on the outside or above the injection molding machine mold, and the air inside the closed cover 200 is sucked by the suction part 300. The air pressure inside the closed cover 200 is reduced, and the injection molded product that has been demolded from the injection molding machine mold can be sucked into the closed cover 200. The number of the main pipeline 301 is one, which is connected to an external device that can absorb gas, such as an air pump. The gas-absorbing device absorbs the air inside the closed cover 200 through the main pipeline 301, the auxiliary pipeline 302, and the distribution pipeline 303.

[0023] Please refer to Figure 4 At least two auxiliary pipelines 302 are required, and at least one distribution pipeline 303 is installed on each of the two auxiliary pipelines 302. Each distribution pipeline 303 is provided with an air intake port 3031. When the external gas suction equipment is working, the air in the closed cover 200 is sucked into the interior of the distribution pipeline 303 through the air intake port 3031, and finally sucked away through the auxiliary pipelines 302 and the main pipeline 301.

[0024] Please refer to Figure 3 An on-off valve 400 is provided on each distribution pipeline 303, and the on-off valve 400 includes a valve cabin 401 provided on the distribution pipeline 303, and a lifting core 402 installed on the valve cabin 401; when the plastic product is sucked into the interior of the sealing cover 200, the lifting core 402 will be pressed to move the lifting core 402 upward, and when the lifting core 402 is pressed and moved upward, the distribution pipeline 303 can be closed.

[0025] Please refer to Figure 5 The valve cabin 401 has two connecting ends 403 connected to the distribution pipeline 303; the valve cabin 401 is directly installed on the distribution pipeline 303, and the two connecting ends 403 can allow the gas in the distribution pipeline 303 to flow through the interior of the valve cabin 401 and then flow into the distribution pipeline 303. The lifting core 402 includes a valve plate 4021 arranged in the valve cabin 401, and an extension body 4022 connected to the valve plate 4021 and extending to the outside of the valve cabin 401; when the extension body 4022 is pressed, the valve plate 4021 can change its position to close the connecting end 403.

[0026] Please refer to Figure 5The extension body 4022 is located below the valve cabin 401 and the valve plate 4021 , and there is a cavity below the connecting end 403 in the valve cabin 401 . Under the action of gravity, the valve plate 4021 enters the cavity and is misaligned with the connecting end 403 .

[0027] Of course, in order to make the present robot better suitable for different types of injection molding machines, such as horizontal injection molding machines, and to avoid the problem of the valve plate 4021 blocking the connecting end 403 upward due to the fast gas flow rate in the distribution pipeline 303, the initial position of the valve plate 4021 can be maintained by setting an elastic structure, that is, the valve plate 4021 and the two connecting ends 403 are misaligned. For example, an elastic structure is set between the outer end of the extension body 4022 in the valve cabin 401 and the valve cabin 401, and a thrust is applied to the extension body 4022 away from the valve cabin 401 to help the valve plate 4021 maintain its initial position.

[0028] A magnetic sheet may be provided at the connection position between the valve plate 4021 and the extension body 4022, and a magnetic sheet may also be provided at the bottom of the cavity of the valve cabin 401, so that the valve plate 4021 can maintain its initial position by magnetic force.

[0029] Therefore, in the absence of external force, the valve plate 4021 and the two connecting ends 403 are in a misaligned state, so that the valve plate 4021 cannot block the flow of gas. When the finished plastic product is sucked into the interior of the closed cover 200 and moves toward the distribution pipeline 303, it will press the extension body 4022, causing the extension body 4022 to move upward. During the upward movement of the extension body 4022, the valve plate 4021 is pushed to move upward. The upward movement of the valve plate 4021 will reach between the two connecting ends 403 of the valve cabin 401, cutting off the connection between the two connecting ends 403, so that the air flow cannot circulate inside the distribution pipeline 303 through the opening and closing valve 400, thereby achieving the effect of closing the distribution pipeline 303, thereby affecting the flow rate of the gas inside the corresponding sub-pipeline 302. The height of the air intake port 3031 is higher than the extension body 4022, so that when the plastic product moves toward the air intake port 3031, it can contact the extension body 4022 more stably.

[0030] Please refer to Figure 2 A monitoring unit 500 is provided on each auxiliary pipeline 302; the monitoring unit 500 can monitor the gas flow information of the auxiliary pipeline 302 caused by the closure of the distribution pipeline 303. The gas flow information is mainly the flow velocity or flow rate information of the gas. When monitoring the flow rate information, a gas flow monitor can be selected, and when monitoring the flow rate information, a gas flow rate monitor can be selected.

[0031] For example, more than two auxiliary pipelines 302 are selected to be connected to the main pipeline 301, and a distribution pipeline 303 is installed on each auxiliary pipeline 302. When the on-off valve 400 on one of the distribution pipelines 303 is pressed by a plastic product, the distribution pipeline 303 will be closed, and the corresponding auxiliary pipeline 302 will also be closed. In this case, you can choose to monitor the flow rate information of the gas or the flow rate information of the gas, because when the auxiliary pipeline 302 is closed, the flow rate information and the flow rate information will change significantly.

[0032] For another example, if each auxiliary pipeline 302 is provided with more than two distribution pipelines 303, it is preferred to monitor the flow rate information of the auxiliary pipeline 302. For example, if the number of the auxiliary pipelines 302 is three, and each auxiliary pipeline 302 is provided with three distribution pipelines 303, under normal operation, each auxiliary pipeline 302 and the main pipeline 301 form a parallel relationship. According to the parallel pipeline characteristics, the suction pressure inside each auxiliary pipeline 302 is the same, and the three distribution pipelines 303 inside each auxiliary pipeline 302 also form a parallel relationship. Under normal circumstances, the total intake resistance of the auxiliary pipeline 302 can be expressed as:

[0033] Where R 1 represents the total intake resistance of the secondary pipe 302 in a normal state, and R 0 represents the intake resistance of a single distribution pipeline 303. When one of the distribution pipelines 303 is closed, the total intake resistance of the secondary pipeline 302 can be expressed as:

[0034] Where R 2 represents the total intake resistance of the auxiliary pipeline 302 when one distribution pipeline 303 is blocked, and R 0 represents the intake resistance of a single distribution pipeline 303. Therefore, when one of the distribution pipelines 303 is blocked, the total intake resistance of the corresponding auxiliary pipeline 302 will increase. According to the flow distribution power, it can be known that in the parallel pipeline, the flow rate is inversely proportional to the intake resistance, which can be expressed as:

[0035] Where Q 1 Indicates the gas flow rate of the secondary pipeline 302 under normal conditions, Q 2 represents the gas flow rate of the auxiliary pipeline 302 of the distribution pipeline 303 that is blocked, R 1 represents the total intake resistance of the secondary pipe 302 in a normal state, R 2It represents the total air intake resistance of the auxiliary pipeline 302 when one distribution pipeline 303 is blocked. It can be seen that when one distribution pipeline 303 is blocked, the flow rate of this auxiliary pipeline 302 is reduced to two-thirds of the original flow rate.

[0036] By monitoring the gas flow changes in the auxiliary pipeline 302 through the monitoring unit 500, it can be determined whether the distribution pipeline 303 is blocked, and whether a plastic product enters the interior of the closed cover 200 to push the extension body 4022 in the opening and closing valve 400.

[0037] A blocking portion 600 is also provided on the closed cover 200; the blocking portion 600 is provided below the distribution pipeline 303, and has two states, the first being an open state, and the second being a closed state. When in the open state, the blocking portion 600 will not block the opening of the closed cover 200, and the plastic product can enter the interior of the closed cover 200 through the opening; when in the closed state, the blocking portion 600 can block the opening of the closed cover 200 to prevent the plastic product from escaping from the closed cover 200 during the process of the robot arm transporting the plastic product. Therefore, the blocking portion 600 can prevent the plastic product from escaping from the closed cover 200 due to the shaking of the robot arm during the movement of the plastic product after the plastic product enters the interior of the closed cover 200.

[0038] The blocking portion 600 includes a connecting member 601 rotatably connected to the closing cover 200, and a shielding member 602 that can rotate synchronously with the connecting member 601. A fixed axis body 201 is fixed on the closing cover 200, and the connecting member 601 is rotatably connected to the fixed axis body 201. The shielding member 602 can adopt a fence type structure or a mesh type structure, which can reduce the mass of the shielding member 602 itself. When the connecting member 601 rotates, it can drive the shielding member 602 to rotate, so that the shielding member 602 can block the opening of the closing cover 200 or convert the opening of the closing cover 200 to an open state.

[0039] like Figure 3 In the present embodiment, there are two blocking parts 600. The two blocking parts 600 rotate toward each other to block the opening of the sealing cover 200. The two blocking parts 600 rotate away from each other to open the opening of the sealing cover 200. Regarding the driving of the blocking part 600, in this embodiment, a motor-like structure can be used to connect with the connecting member 601, and the connecting member 601 can be driven to rotate by the motor-like structure.

[0040] The blocking part 600 can close the sealing cover 200 according to the gas flow information. For example, in this embodiment, the monitoring part 500 selects a gas flow monitor, and the gas flow monitor can be a vortex flowmeter. The monitoring part 500 is connected to the controller, and the controller can select a PLC control module or a single-chip microcomputer. In this embodiment, a single-chip microcomputer is selected as the controller. The motor-type structure that drives the connecting part 601 to rotate selects a stepper motor, and the stepper motor is driven and controlled by a driver. The gas flow monitor is connected to the controller and can transmit the monitored information to the single-chip microcomputer. The single-chip microcomputer drives and controls the stepper motor through the driver. When the gas flow monitor detects a change in the gas flow inside the auxiliary pipeline 302, the single-chip microcomputer receives the change information and controls the stepper motor to move through the driver, so that the blocking part 600 changes its state, and the blocking part 600 reaches an open or closed state.

[0041] The main working process of this robot is: After the injection molding machine completes the injection molding and opens the mold, the arm body 100 drives the closing cover 200 to move so that the closing cover 200 covers the outside or above the mold, and the external air suction device provides suction force to reduce the air pressure inside the closing cover 200, so that the demoulded plastic product is sucked into the inside of the closing cover 200.

[0042] After being sucked in, the plastic product moves toward the distribution pipeline 303 , pressing the extension body 4022 during the movement, causing the extension body 4022 to move upward, and the valve plate 4021 can move upward, so that the corresponding distribution pipeline 303 is closed, thereby affecting the gas flow in the corresponding secondary pipeline 302 .

[0043] The monitoring unit 500 can monitor the changes in gas flow, convert the information into electrical signals and transmit it to the controller. The controller drives and controls the stepper motor through the driver to make the blocking unit 600 reach a closed state. The blocking unit 600 can prevent the plastic product from escaping from the closed cover 200 due to the shaking of the manipulator during movement after the plastic product enters the closed cover 200.

[0044] As an optional embodiment, please refer to Figure 6, this embodiment provides another way to drive the blocking part 600, mainly a sliding core 700 is arranged in the auxiliary pipeline 302, and the sliding core 700 and the blocking part 600 are connected by the pulling part 800; in the natural state, the sliding core 700 can block the auxiliary pipeline 302 and the distribution pipeline 303, and the radial side wall of the sliding core 700 is provided with a connecting port 701. When the sliding core 700 moves upward relative to the auxiliary pipeline 302, the connecting port 701 can connect the auxiliary pipeline 302 and the distribution pipeline 303. When the main pipeline 301 just starts to work, it can absorb the air in the space above the sliding core 700, so that the air pressure in the space above the sliding core 700 is reduced. The sliding core 700 moves upward under the action of the pressure difference, so that the connecting port 701 can connect the auxiliary pipeline 302 and the distribution pipeline 303. When each auxiliary pipeline 302 is connected to multiple distribution pipelines 303, multiple distribution pipelines 303 can be connected to a confluence pipe for connecting with the auxiliary pipeline 302.

[0045] Specifically, Figure 7 The auxiliary pipeline 302 includes an expanded diameter section 3021 and a reduced diameter section 3022, wherein the diameter of the expanded diameter section 3021 is larger than the diameter of the reduced diameter section 3022, the expanded diameter section 3021 is connected to the reduced diameter section 3022 via a first connecting point 3023, and the reduced diameter section 3022 is connected to the distribution pipeline 303 via a second connecting point 3024; in a natural state, the sliding core 700 is located in the reduced diameter section 3022, and the first connecting point 3023 and the second connecting point 3024 are blocked. When the air pressure inside the expanded diameter section 3021 is absorbed, under the action of the pressure difference, the sliding core 700 moves upward relative to the auxiliary pipeline 302, and the connecting port 701 connects the first connecting point 3023 and the second connecting point 3024.

[0046] Therefore, through the operation of the external air suction device and the main line 301, the sliding core 700 can be moved upward. When the sliding core 700 moves upward, the pulling part 800 pulls the blocking part 600 to rotate, so that the blocking part 600 is converted to an open state, so that the opening of the closing cover 200 is opened. When the sliding core 700 moves downward, the pulling part 800 pushes the blocking part 600 to rotate, so that the blocking part 600 is converted to a closed state, so that the opening of the closing cover 200 is closed.

[0047] Specifically, a pressing ring 702 is provided on the sliding core 700, and an elastic member 703 that resists the pressing ring 702 is also sleeved on the outside of the sliding core 700. When the sliding core 700 moves upward, the pressing ring 702 presses the elastic member 703, causing the elastic member 703 to contract. When the external air suction device stops working, the elastic member 703 pushes the pressing ring 702, allowing the sliding core 700 to move downward and fall back to its original position.

[0048] Please refer to Figure 6 and Figure 8The pulling part 800 includes a synchronous frame 801 connected to the sliding core 700, and a convex column 802 installed on the synchronous frame 801; a through groove 6011 is opened on the connecting member 601, and the convex column 802 extends to the inside of the through groove 6011. In this embodiment, the number of the auxiliary pipelines 302 is 4, and each auxiliary pipeline 302 is provided with a sliding core 700, and one end of the sliding core 700 extends to the outside of the auxiliary pipeline 302. The two ends of the synchronous frame 801 are respectively connected to the two sliding cores 700, then the number of the synchronous frame 801 is 2, and the convex column 802 Fixed on the synchronous frame 801, when the boss 802 moves upward, it can pull the end of the connecting member 601 with the through slot 6011 to rotate upward through the through slot 6011, thereby driving the connecting member 601 to rotate counterclockwise. When the boss 802 moves downward, it can push the end of the connecting member 601 with the through slot 6011 to move downward through the through slot 6011, thereby driving the connecting member 601 to rotate clockwise. The connecting member 601 is driven to rotate clockwise or counterclockwise by the lifting and lowering of the boss 802, thereby allowing the entire blocking portion 600 to reach an open or closed state.

[0049] Therefore, the present invention does not need to use a stepper motor and a driver, but instead uses a controller to control the opening and closing of the external air suction device through a relay.

[0050] The main working process of this embodiment is as follows: After the injection molding machine completes the injection molding and opens the mold, the arm body 100 drives the closing cover 200 to move, so that the closing cover 200 covers the outside or above the mold, and the external air suction device provides suction force. The gas inside the expanded diameter section 3021 in the auxiliary pipeline 302 is sucked away. Under the action of the pressure difference, the sliding core 700 moves upward, driving the synchronous frame 801 to move upward, and the boss 802 moves upward synchronously, pulling the connecting piece 601 to rotate, so that the blocking part 600 reaches the open state.

[0051] After being sucked in, the plastic product moves toward the distribution pipeline 303 , pressing the extension body 4022 during the movement, causing the extension body 4022 to move upward, and the valve plate 4021 can move upward, so that the corresponding distribution pipeline 303 is closed, thereby affecting the gas flow in the corresponding secondary pipeline 302 .

[0052] The monitoring part 500 can monitor the changes in gas flow, convert the information into electrical signals and transmit it to the controller. The controller turns off the external air suction device through the relay. Under the action of the elastic member 703, the sliding core 700 moves downward, driving the synchronous frame 801 and the boss 802 to move downward, pushing the connecting member 601 to rotate, so that the blocking part 600 reaches a closed state.

[0053] In this case, because the external air suction equipment is turned off, the plastic products sucked by the distribution pipeline 303 will fall downward and fall above the blocking part 600. Through the movement of the arm body 100, the closed cover 200 and the plastic products in the closed cover 200 can be driven to the finished product collection area, where the finished product collection area is a position for centrally collecting plastic products set according to production needs.

[0054] Because of the push of the elastic member 703 , the sliding core 700 moves downward more quickly, and can push the blocking portion 600 to a closed state before the plastic product falls, thereby preventing the plastic product from falling out of the interior of the closure cover 200 .

[0055] When the closed cover 200 reaches the finished product collection area and needs to put down the plastic product, the suction force is provided by the external air suction equipment, and the gas inside the expanded diameter section 3021 in the auxiliary pipeline 302 is sucked away. Under the action of the pressure difference, the sliding core 700 moves upward, driving the synchronous frame 801 to move upward, and the boss 802 moves upward synchronously, pulling the connecting piece 601 to rotate, so that the blocking part 600 reaches the open state, and the plastic product above the blocking part 600 will be detached from the blocking part 600.

[0056] Because the connecting port 701 is opened on the radial side wall of the sliding core 700, and there is a distance between the connecting port 701 and the top of the sliding core 700, within a certain range when the sliding core 700 starts to move upward, it can pull the blocking part 600 to open a certain angle to allow the plastic product to escape from the sealing cover 200. For example, by adjusting the opening position of the connecting port 701, the sliding core 700 can pull the blocking part 600 to open at a maximum angle of 60° within this range. At this time, the connecting port 701 is not connected to the auxiliary pipeline 302 and the distribution pipeline 303. Therefore, before the blocking part 600 opens a certain angle to facilitate the escape of the plastic product, the distribution pipeline 303 will not generate suction on the plastic product, thereby effectively avoiding the problem that the plastic product cannot escape from the sealing cover 200 and enter the finished product collection area due to the suction of the distribution pipeline 303.

[0057] It should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A plastic product production material taking robot, characterized by: include, Arm body (100); A sealing cover (200) mounted on the arm body (100); The suction part (300) comprises a main pipeline (301), at least two auxiliary pipelines (302) connected to the main pipeline (301), and a distribution pipeline (303) connected to the auxiliary pipelines (302) and arranged in the closed cover (200); An on-off valve (400) is provided on each of the distribution pipelines (303), and the on-off valve (400) comprises a valve cabin (401) provided on the distribution pipeline (303), and a lifting core (402) installed on the valve cabin (401); Each of the secondary pipelines (302) is provided with a monitoring unit (500); The sealing cover (200) is further provided with a blocking portion (600); When the plastic product is sucked into the closed cover (200), the lifting core (402) is pressed, and the lifting core (402) is pressurized to close the distribution pipeline (303). The monitoring part (500) can monitor the gas flow information of the auxiliary pipeline (302) caused by the closure of the distribution pipeline (303), and the blocking part (600) can close the closed cover (200) according to the gas flow information.

2. The plastic product production material taking robot according to claim 1 is characterized in that: The valve compartment (401) has two communication ends (403) that are connected to the distribution pipeline (303); The lifting core (402) comprises a valve plate (4021) arranged in the valve cabin (401), and an extension body (4022) connected to the valve plate (4021) and extending outside the valve cabin (401); When the extension body (4022) is pressed, the valve plate (4021) can change position to close the connecting end (403).

3. The plastic product production material taking robot according to claim 1 or 2, characterized in that: The blocking portion (600) comprises a connecting member (601) rotatably connected to the closing cover (200), and a shielding member (602) capable of rotating synchronously with the connecting member (601).

4. The plastic product production material taking robot according to claim 3 is characterized in that: A fixed axis body (201) is fixed on the sealing cover (200), and the connecting piece (601) is rotatably connected to the fixed axis body (201).

5. The plastic product production material taking robot according to claim 1 or 4, characterized in that: A sliding core (700) is provided in the secondary pipeline (302), and the sliding core (700) and the blocking portion (600) are connected via a pulling portion (800); In a natural state, the sliding core (700) is capable of blocking the secondary pipeline (302) and the distribution pipeline (303).

6. The plastic product production material taking robot according to claim 5 is characterized in that: A communication port (701) is provided on the radial side wall of the sliding core (700), and when the sliding core (700) moves upward relative to the auxiliary pipeline (302), the communication port (701) can connect the auxiliary pipeline (302) and the distribution pipeline (303).

7. The plastic product production material taking robot according to claim 6 is characterized by: The secondary pipeline (302) comprises an expanded diameter section (3021) and a reduced diameter section (3022), the expanded diameter section (3021) being connected to the reduced diameter section (3022) via a first connecting point (3023), and the reduced diameter section (3022) being connected to the distribution pipeline (303) via a second connecting point (3024); In a natural state, the sliding core (700) is located in the reduced diameter section (3022), the first connection point (3023) and the second connection point (3024) are blocked, and when the sliding core (700) moves upward relative to the secondary pipeline (302), the communication port (701) connects the first connection point (3023) and the second connection point (3024).

8. The plastic product production material taking robot according to claim 5 is characterized by: A pressing ring (702) is provided on the sliding core (700), and an elastic member (703) that abuts against the pressing ring (702) is sleeved on the outside of the sliding core (700).

9. The plastic product production material taking robot according to claim 5, characterized in that: The pulling portion (800) comprises a synchronous frame (801) connected to the sliding core (700), and a protruding column (802) mounted on the synchronous frame (801); The protruding column (802) is slidably connected to the blocking portion (600).

10. The plastic product production material taking robot according to claim 1, characterized in that: The distribution pipeline (303) has an air intake port (3031), and the height of the air intake port (3031) is higher than the extension body (4022).

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