A visual positioning and automatic sprue cutting integrated machine for injection molded parts

Abstract

The application discloses a kind of visual positioning automatic water gap cutting integrated machine of injection molding parts, the new water gap cutting machine, comprising: including rack and workbench, the workbench is located at the top of rack, it is characterized in that: the rotary table is rotatably arranged on the workbench;By first clamping mechanism and second clamping mechanism, workpiece main body and water gap can be clamped respectively, so that the main body and water gap have relatively stable constraints when cutting mechanism cuts the connection position of main body and water gap, multiple insertion rods in second clamping mechanism can be extended under the cooperation of rolling block, butt block and sliding plate, and cooperate with first clamping plate and second clamping plate to limit water gap, so that second clamping mechanism can adapt to water gap with certain flexibility and irregular shape, reduce the possibility of deformation and deviation of workpiece in clamping and cutting process, so as to be applicable to efficient automatic processing of various injection molding parts workpieces with soft texture and easy deformation.

Description

Technical Field

[0001] This invention belongs to the field of injection molding production and processing technology, and specifically relates to an integrated machine for visual positioning and automatic sprue cutting of injection molded parts. Background Technology

[0002] Injection molding is a widely used plastic processing method in modern manufacturing. Various injection molded parts are used in a wide range of fields, including automobiles, electronics, home appliances, medical devices, and daily consumer goods. During the injection molding process, the demolded injection molded parts usually have sprues. In order to obtain the final product, the sprues must be separated from the injection molded part body. This process is usually completed by a specialized sprue cutting machine or by manual cutting.

[0003] Existing automatic sprue cutter machines typically use a combination of clamping or simple single-sided vacuum adsorption to fix the workpiece during operation. Then, tools such as scissors or laser heads are controlled to cut the sprue. However, this traditional single-direction or combination clamping method has significant limitations when dealing with special materials, especially for softer injection molded parts. Due to the poor rigidity of the workpiece itself, it is very easy to deform or displace when subjected to shearing force. If only the body of the injection molded part is fixed and the sprue is left suspended, the sprue is prone to being pulled and deflected at the moment of shearing. This not only leads to an uneven cut surface and residual burrs, but in severe cases, it can also tear the body of the injection molded part, causing the product to be scrapped.

[0004] To overcome the aforementioned deficiencies in the existing technology, this invention proposes a novel integrated automatic sprue cutting machine for visual positioning of injection molded parts. Before performing the cutting action, the device can not only firmly clamp the main body of the injection molded part, but also simultaneously lock the sprue part to be cut off through a special auxiliary clamping structure. This collaborative force-bearing design, in which the main body and the sprue are clamped separately, ensures that both ends of the cutting point receive stable rigid support, completely eliminating the stress deformation caused by the pulling and squeezing of soft materials during the cutting process. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated machine for visual positioning and automatic sprue cutting of injection molded parts, which is suitable for efficient and automated processing of various injection molded parts that are relatively soft and easily deformed.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: An integrated machine for visual positioning and automatic sprue cutting of injection molded parts includes a frame and a worktable, the worktable being located at the top of the frame. The worktable is characterized by: a turntable rotatably mounted on it; a material discharge port on one side of the turntable; a mounting frame on the worktable; and a visual inspection mechanism, a pressing mechanism, a first clamping mechanism, a second clamping mechanism, and a shearing mechanism connected to the mounting frame. The pressing mechanism is located above the turntable and slidably connected to the mounting frame; the first clamping mechanism is connected to the pressing mechanism and located above the turntable; the second clamping mechanism is located to one side of the first clamping mechanism and connected to the mounting frame; and the shearing mechanism is located on the worktable and slidably connected to it. The second clamping mechanism includes a second bracket, a first clamping plate, and a second clamping plate. The top of the second bracket is slidably connected to the pressing mechanism, and the bottom is slidably connected to the worktable. The second clamping plate is located above the first clamping plate, and both the first and second clamping plates are threadedly connected to the second bracket. The first clamping plate has a cavity inside, and multiple insertion rods are provided inside the first clamping plate. The tops of the multiple insertion rods extend toward the top of the first clamping plate and are slidably connected thereto. A sliding plate is also slidably provided inside the first clamping plate, and the bottoms of the multiple insertion rods are connected to the sliding plate. A second compression spring is wound around the outside of the multiple insertion rods between the top of the sliding plate and the top of the inner cavity of the first clamping plate. A roller is provided at the bottom of the sliding plate, and the roller extends toward the bottom of the first clamping plate and is slidably connected thereto. The second clamping plate has multiple through holes for the insertion rods to pass through. The worktable is provided with a convex-shaped docking block below the roller for the roller to roll. The vision inspection mechanism can detect the position of the workpiece on the turntable.

[0007] In this structural design, a rotary motor that drives the turntable is installed inside the frame. The vision inspection mechanism is installed on the mounting frame, and its inspection area covers the location of the turntable. It is used to detect the position and posture of the workpiece on the turntable in real time. The turntable is used to support the injection molded parts to be processed. The turntable can be rotated according to the workpiece position feedback from the vision inspection mechanism to adjust the angle of the workpiece, so that the main body of the workpiece is located below the first clamping mechanism and the position of the workpiece gate is located at the corresponding position of the second clamping mechanism. After the workpiece position is rotated, the pressing mechanism drives the first clamping mechanism and the second clamping mechanism to move downward until the first clamping mechanism clamps the workpiece on the turntable. The workpiece sprue and the middle of the first clamping plate and the second clamping plate in the second clamping mechanism are on the same horizontal line. Then, the second clamping mechanism moves to the position of the workpiece sprue, so that the sprue enters between the first clamping plate and the second clamping plate. As the second clamping mechanism moves, the roller contacts the docking block and rolls along the docking block. When the roller moves to the protruding position of the docking block, the roller is pushed upward by the docking block and moves upward, thereby pushing the slide plate to overcome the elastic force of the second compression spring and move upward. The slide plate drives multiple insert rods to move upward, so that the insert rods pass through the sprue and restrict and clamp the sprue. After the workpiece body and the sprue are clamped, the shearing mechanism slides along the worktable and approaches the connection position between the workpiece body and the sprue. It shears the connection position to separate the sprue from the workpiece body and pushes the sheared workpiece body and sprue to the discharge port. After the sprue shearing of one workpiece is completed, it is reset. With the above structure, the vision inspection mechanism can perform position detection on the workpiece on the turntable and adjust the position and orientation of the workpiece in conjunction with the turntable; the first clamping mechanism and the second clamping mechanism can clamp the workpiece body and the sprue respectively, so that when the shearing mechanism cuts the connection between the body and the sprue, both the body and the sprue have relatively stable constraints; the multiple insert rods in the second clamping mechanism can extend with the cooperation of the roller block, the docking block and the sliding plate, and restrict the sprue in conjunction with the first clamping plate and the second clamping plate, so that the second clamping mechanism can adapt to sprues with a certain degree of flexibility and irregular shape, reducing the possibility of workpiece deformation and displacement during clamping and shearing.

[0008] The pressing mechanism includes an electric push rod, a first pressing plate, and a second pressing plate. The electric push rod is located at the top of the mounting frame. The first pressing plate is located above the turntable and is slidably connected to the mounting frame. The movable end of the electric push rod is connected to the first pressing plate. The second pressing plate is located below the first pressing plate. Two spaced connecting blocks are provided between the first pressing plate and the second pressing plate, and the two connecting blocks connect the first pressing plate and the second pressing plate.

[0009] This structural design, with two connecting blocks spaced apart, creates an installation space between the first and second lower pressure plates, facilitating the installation and movement of related components. In use, after the workpiece is inspected by the vision inspection mechanism and adjusted to the corresponding position by the turntable, the electric push rod is activated. Its movable end drives the first lower pressure plate to slide downward along the mounting frame. The first lower pressure plate drives the second lower pressure plate to move downward synchronously through the two connecting blocks, so that the pressing mechanism gradually approaches the workpiece on the turntable and drives the first clamping mechanism connected to it to clamp the workpiece body. At the same time, the second clamping mechanism can move along the pressing mechanism to the position of the workpiece sprue so as to clamp the sprue. After the shearing mechanism completes the shearing of the workpiece body at the connection position with the sprue, the movable end of the electric push rod retracts, driving the first lower pressure plate to move upward. The second lower pressure plate rises synchronously with the first lower pressure plate through two connecting blocks, so that the lower pressure mechanism moves away from the workpiece on the turntable and releases the clamping mechanism from the workpiece body, which facilitates the unloading of the sheared workpiece and the processing of the next workpiece.

[0010] The first clamping mechanism includes an arc-shaped pressure block and multiple fixing rods. The arc-shaped pressure block is fixed to the bottom of the second lower pressure plate and close to the second clamping mechanism. A connecting plate is provided between the first lower pressure plate and the second lower pressure plate. The multiple fixing rods slide through the second lower pressure plate and are fixedly connected to the connecting plate at their tops. A guide rod is provided at the bottom of the first lower pressure plate at each of the multiple fixing rods. The multiple guide rods slide into the tops of the multiple fixing rods. A first compression spring is wound around the outside of each of the multiple guide rods. The multiple first compression springs are located between the first lower pressure plate and the connecting plate.

[0011] In this structural design, the pressing mechanism drives the first and second pressing plates to move downwards. The bottom of the fixed rod first contacts the workpiece. As the pressing mechanism continues to move downwards, the fixed rod is blocked by the workpiece and drives the connecting plate to move upwards relative to the second pressing plate. At the same time, the guide rod gradually inserts into the fixed rod, and the first compression spring is compressed, so that the fixed rod maintains elastic pressure on the workpiece. Subsequently, the arc-shaped pressure block continues to move downwards with the second pressing plate and contacts the workpiece, pressing the workpiece near the sprue. After shearing is completed, the pressing mechanism moves upward, the arc-shaped pressing block leaves the workpiece, the first compression spring gradually resets and pushes the connecting plate downward, so that multiple fixed rods return to their initial positions. Through the cooperation of the arc-shaped pressing block and multiple fixed rods, the workpiece body can be pressed in multiple places, and the first compression spring is used to reduce the squeezing deformation caused to softer workpieces during the pressing process.

[0012] The shearing mechanism includes a drive assembly, a cutter, and a crossbar. The drive assembly drives the cutter and the crossbar to move. The crossbar and the cutter are fixedly connected at intervals by a connecting rod. The cutter is close to the turntable, and the crossbar is away from the turntable. The cutter moves between a first clamping mechanism and a second clamping mechanism, and the crossbar moves above the turntable.

[0013] With this structural design, after the workpiece is clamped, the connection between the main body and the sprue is on the movement path of the cutting tool. After the drive assembly is started, it drives the cutting tool, connecting rod, and crossbar to move towards the workpiece. The cutting tool first enters between the first clamping mechanism and the second clamping mechanism to cut the connection between the main body and the sprue. During the movement of the cutting tool, the crossbar moves synchronously above the turntable and pushes the cut workpiece and sprue to the feed port. The workpiece and sprue fall into the frame from the feed port. After the cutting is completed, the drive assembly drives the cutting tool and crossbar to move in the opposite direction, so that the cutting tool exits between the first clamping mechanism and the second clamping mechanism and returns to its initial position.

[0014] The frame is provided with a material discharge chute extending outward from the frame, with one end of the material discharge chute located below the material discharge port.

[0015] In this structural design, the frame is provided with a material discharge chute extending outward from the frame, with one end of the material discharge chute located below the material discharge port.

[0016] The second clamping mechanism further includes a moving component, which includes a motor, a screw, and a slider. The motor is connected to the second lower pressure plate. The screw and the slider are both located inside the second lower pressure plate. The screw is rotatably connected to the second lower pressure plate, and one end of the screw is connected to the motor for transmission. The slider is connected to the screw in cooperation. The top of the second bracket is connected to the slider.

[0017] In this structural design, the motor is connected to the second lower pressure plate to provide the power required for the movement of the second clamping mechanism. During use, the motor drives the screw to rotate, and the rotation of the screw drives the slider connected to it to move along the second lower pressure plate. The slider drives the second bracket to move synchronously, so that the roller at the bottom of the second bracket rolls along the guide groove on the worktable, thereby driving the first clamping plate and the second clamping plate to approach the sprue of the workpiece. When the second clamping mechanism moves to the corresponding position, it clamps the sprue of the workpiece. After the shearing is completed, the motor rotates in the opposite direction, and the screw drives the slider to move in the opposite direction, so that the second bracket, the first clamping plate, and the second clamping plate move away from the workpiece and return to the initial position.

[0018] The second bracket is equipped with rollers at its bottom, and the worktable is provided with guide grooves for the rollers to slide.

[0019] This structural design, with its guide grooves restricting the movement direction of the rollers, keeps the second support stable during movement and prevents the second clamping mechanism from shifting.

[0020] The invention employing the above technical solution has the following advantages: The first and second clamping mechanisms can clamp the workpiece body and the sprue respectively, so that when the shearing mechanism shears the connection between the body and the sprue, both the body and the sprue have relatively stable constraints. Multiple insert rods in the second clamping mechanism can extend with the cooperation of the roller block, the mating block and the sliding plate, and restrict the sprue in conjunction with the first and second clamping plates. This allows the second clamping mechanism to adapt to sprues with a certain degree of flexibility and irregular shape, reducing the possibility of workpiece deformation and displacement during clamping and shearing. Thus, it can be used for efficient automated processing of various injection molded workpieces with soft texture and easy deformation.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 2 This is a three-dimensional structural diagram of the frame of an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 3 This is a three-dimensional structural diagram of the mounting frame of an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 4 This is a front view schematic diagram of the mounting frame of an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 5 This is a three-dimensional structural diagram of the second clamping mechanism in an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 6 This is a front sectional view of the first clamping plate of an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; Figure 7 This is a front view schematic diagram of the first clamping mechanism in an embodiment of the automatic sprue cutting machine for visual positioning of injection molded parts according to the present invention; The main component symbols are explained as follows: 1. Frame; 2. Worktable; 21. Turntable; 22. Discharge port; 23. Connecting block; 24. Guide groove; 3. Mounting bracket; 4. Vision inspection mechanism; 5. Pressing mechanism; 51. Electric push rod; 52. First pressing plate; 53. Second pressing plate; 54. Connecting block; 6. First clamping mechanism; 61. Arc-shaped pressing block; 62. Fixing rod; 63. Connecting plate; 64. Guide rod; 65. ... 7. Compression spring; 71. Second clamping mechanism; 72. Second bracket; 73. Roller; 74. First clamping plate; 75. Second clamping plate; 76. Through hole; 77. Insert rod; 78. Slide plate; 79. Second compression spring; 70. Roller; 710. Moving assembly; 72. Motor; 73. Screw; 74. Slider; 85. Shearing mechanism; 86. Drive assembly; 87. Cutting tool; 88. Crossbar; 19. Drop chute. Detailed Implementation

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0024] like Figures 1-7 As shown, the present invention provides an integrated machine for visual positioning and automatic sprue cutting of injection molded parts, comprising a frame 1 and a worktable 2. The worktable 2 is located on the top of the frame 1. The worktable 2 is characterized by: a turntable 21 rotatably mounted on the worktable 2; a discharge port 22 is provided on one side of the turntable 21 on the worktable 2; a mounting frame 3 is provided on the worktable 2; the mounting frame 3 is connected to a visual inspection mechanism 4, a pressing mechanism 5, a first clamping mechanism 6, a second clamping mechanism 7, and a shearing mechanism 8; the pressing mechanism 5 is located above the turntable 21 and is slidably connected to the mounting frame 3; the first clamping mechanism 6 is connected to the pressing mechanism 5 and is located above the turntable 21; the second clamping mechanism 7 is located on one side of the first clamping mechanism 6 and is connected to the mounting frame 3; and the shearing mechanism 8 is located on the worktable 2 and is slidably connected to it. The second clamping mechanism 7 includes a second bracket 71, a first clamping plate 72, and a second clamping plate 73. The top of the second bracket 71 is slidably connected to the pressing mechanism 5, and the bottom is slidably connected to the worktable 2. The second clamping plate 73 is located above the first clamping plate 72, and both the first clamping plate 72 and the second clamping plate 73 are threadedly connected to the second bracket 71. The first clamping plate 72 has a cavity inside, and multiple insertion rods 74 are provided inside the first clamping plate 72. The tops of the multiple insertion rods 74 extend toward the top of the first clamping plate 72 and are slidably connected thereto. A sliding plate 75 is also slidably provided inside the first clamping plate 72. The bottoms of the multiple insertion rods 74 are connected to the sliding plate 75. A second compression spring 76 is wound around the outside of the multiple insertion rods 74 between the top of the sliding plate 75 and the top of the inner cavity of the first clamping plate 72. A roller 77 is provided at the bottom of the sliding plate 75. The roller 77 extends toward the bottom of the first clamping plate 72 and is slidably connected thereto. The second clamping plate 73 has multiple through holes 731 through which the insertion rods 74 can pass. A U-shaped docking block 23 is provided on the worktable 2 below the roller 77 for the roller 77 to roll. The visual inspection mechanism 4 can detect the position of the workpiece on the turntable 21.

[0025] In practice, depending on the actual situation, the second clamping mechanism 7 can also be configured as a robotic arm that can clamp the sprue. In this embodiment, a rotary motor 781 that drives the turntable 21 to rotate is provided in the frame 1. The vision inspection mechanism 4 is set on the mounting frame 3. Its detection area covers the position of the turntable 21 and is used to detect the position and posture of the workpiece on the turntable 21 in real time. The turntable 21 is used to carry the injection molded part to be processed. The turntable 21 can be rotated according to the workpiece position feedback from the vision inspection mechanism 4 to adjust the angle of the workpiece, so that the main body of the workpiece is located below the first clamping mechanism 6 and the position of the workpiece sprue is located at the corresponding position of the second clamping mechanism 7. After the workpiece position is rotated, the pressing mechanism 5 drives the first clamping mechanism 6 and the second clamping mechanism 7 to move downward until the first clamping mechanism 6 clamps the workpiece on the turntable 21. The workpiece sprue and the middle of the first clamping plate 72 and the second clamping plate 73 in the second clamping mechanism 7 are on the same horizontal line. Then, the second clamping mechanism 7 moves to the position of the workpiece sprue, so that the sprue enters between the first clamping plate 72 and the second clamping plate 73. As the second clamping mechanism 7 moves, the roller 77 contacts the docking block 23 and rolls along the docking block 23. When the roller 77 moves to the protruding position of the docking block 23, the roller 77 is pushed by the docking block 23 and moves upward, thereby pushing the slide plate 75 to overcome the elastic force of the second compression spring 76 and move upward. The slide plate 75 drives multiple insert rods 74 to move upward, so that the insert rods 74 pass through the sprue and restrict and clamp the sprue. After the workpiece body and the sprue are clamped, the shearing mechanism 8 slides along the worktable 2 and approaches the connection position between the workpiece body and the sprue, shears the connection position, separates the sprue from the workpiece body, and pushes the sheared workpiece body and sprue to the discharge port 22. After the sprue shearing of one workpiece is completed, it is reset. Through the above structure, the vision inspection mechanism 4 can perform position detection on the workpiece on the turntable 21 and adjust the position and orientation of the workpiece in conjunction with the turntable 21; the first clamping mechanism 6 and the second clamping mechanism 7 can clamp the workpiece body and the sprue respectively, so that when the shearing mechanism 8 shears the connection position between the body and the sprue, both the body and the sprue have relatively stable constraints. The multiple insert rods 74 in the second clamping mechanism 7 can extend under the cooperation of the roller block 77, the docking block 23 and the sliding plate 75, and restrict the sprue in conjunction with the first clamping plate 72 and the second clamping plate 73, so that the second clamping mechanism 7 can adapt to sprues with a certain degree of flexibility and irregular shape, reducing the possibility of workpiece deformation and displacement during clamping and shearing.

[0026] The pressing mechanism 5 includes an electric push rod 51, a first pressing plate 52, and a second pressing plate 53. The electric push rod 51 is located on top of the mounting frame 3. The first pressing plate 52 is located above the turntable 21 and is slidably connected to the mounting frame 3. The movable end of the electric push rod 51 is connected to the first pressing plate 52. The second pressing plate 53 is located below the first pressing plate 52. Two spaced connecting blocks 54 are provided between the first pressing plate 52 and the second pressing plate 53. The two connecting blocks 54 connect the first pressing plate 52 and the second pressing plate 53. In practice, depending on the actual situation, the second lower pressure plate 53 can be omitted, and the components connected to the second lower pressure plate 53 can be connected to the first lower pressure plate 52. In this embodiment, the two connecting blocks 54 are spaced apart, so that an installation space is formed between the first lower pressure plate 52 and the second lower pressure plate 53, which facilitates the setting and movement of related components. When in use, after the workpiece is detected by the vision inspection mechanism 4 and adjusted to the corresponding position with the turntable 21, the electric push rod 51 is started. Its movable end drives the first lower pressure plate 52 to slide down along the mounting frame 3. The first lower pressure plate 52 drives the second lower pressure plate 53 to move down synchronously through the two connecting blocks 54, so that the pressing mechanism 5 gradually approaches the workpiece on the turntable 21, and drives the first clamping mechanism 6 connected to it to clamp the main body of the workpiece. At the same time, the second clamping mechanism 7 can move along the pressing mechanism 5 to the position of the workpiece sprue so as to clamp the sprue. After the shearing mechanism 8 completes the shearing of the workpiece body at the connection position with the sprue, the movable end of the electric push rod 51 retracts, driving the first lower pressure plate 52 to move upward. The second lower pressure plate 53 rises synchronously with the first lower pressure plate 52 through two connecting blocks 54, so that the lower pressure mechanism 5 moves away from the workpiece on the turntable 21 and releases the clamping of the first clamping mechanism 6 on the workpiece body, which facilitates the unloading of the sheared workpiece and the processing of the next workpiece.

[0027] The first clamping mechanism 6 includes an arc-shaped pressure block 61 and multiple fixing rods 62. The arc-shaped pressure block is fixed to the bottom of the second lower pressure plate 53 and close to the second clamping mechanism 7. A connecting plate 63 is provided between the first lower pressure plate 52 and the second lower pressure plate 53. Multiple fixing rods 62 slide through the second lower pressure plate 53, and their tops are fixedly connected to the connecting plate 63. A guide rod 64 is provided at the bottom of the first lower pressure plate 52 at each of the multiple fixing rods 62. Multiple guide rods 64 are slidably inserted into the tops of the multiple fixing rods 62. A first compression spring 65 is wound around the outside of each of the multiple guide rods 64. Multiple first compression springs 65 are located between the first lower pressure plate 52 and the connecting plate 63.

[0028] In practice, depending on the actual situation, the arc-shaped pressure plate and multiple fixing rods 62 can be replaced with a single pressure plate. In this embodiment, during use, the pressing mechanism 5 drives the first pressing plate 52 and the second pressing plate 53 to move downward. The bottom of the fixing rod 62 first contacts the workpiece. As the pressing mechanism 5 continues to move downward, the fixing rod 62 is blocked by the workpiece and drives the connecting plate 63 to move upward relative to the second pressing plate 53. At the same time, the guide rod 64 is gradually inserted into the fixing rod 62, and the first compression spring 65 is compressed, so that the fixing rod 62 maintains elastic pressure on the workpiece. Subsequently, the arc-shaped pressure block 61 continues to move downward with the second pressing plate 53 and contacts the workpiece, pressing the workpiece near the sprue. After shearing is completed, the pressing mechanism 5 moves upward, the arc-shaped pressing block 61 leaves the workpiece, the first compression spring 65 gradually resets and pushes the connecting plate 63 downward, so that the multiple fixed rods 62 return to their initial positions. Through the cooperation of the arc-shaped pressing block 61 and the multiple fixed rods 62, the main body of the workpiece can be pressed in multiple places, and the first compression spring 65 is used to reduce the squeezing deformation of the softer workpiece during the pressing process.

[0029] The shearing mechanism 8 includes a drive assembly 81, a cutter 82, and a crossbar 83. The drive assembly 81 drives the cutter 82 and the crossbar 83 to move. The crossbar 83 and the cutter 82 are fixedly connected at intervals by a connecting rod. The cutter 82 is close to the turntable 21, and the crossbar 83 is away from the turntable 21. The cutter 82 moves between the first clamping mechanism 6 and the second clamping mechanism 7, and the crossbar 83 moves above the turntable 21.

[0030] In practice, depending on the actual situation, the cutter 82 and the crossbar 83 can be installed on different drive components 81 respectively. In this embodiment, when the workpiece is clamped, the connection position between the main body and the sprue is on the moving path of the cutter 82. After the drive component 81 is started, it drives the cutter 82, the connecting rod and the crossbar 83 to move towards the workpiece. The cutter 82 first enters between the first clamping mechanism 6 and the second clamping mechanism 7 to cut the connection position between the main body and the sprue. During the movement of the cutter 82, the crossbar 83 moves synchronously above the turntable 21 and pushes the cutter body and the sprue to the feed port 22. The workpiece and the sprue fall into the frame 1 from the feed port 22. After the cutting is completed, the drive component 81 drives the cutter 82 and the crossbar 83 to move in the opposite direction, so that the cutter 82 exits between the first clamping mechanism 6 and the second clamping mechanism 7 and returns to the initial position.

[0031] The frame 1 is provided with a material discharge chute 11 extending outward from the frame 1, with one end of the material discharge chute 11 located below the discharge port 22.

[0032] In practice, depending on the actual situation, the material discharge trough 11 can be replaced with a material discharge plate. In this embodiment, the material discharge trough 11 extends from the material discharge port 22 to the outside of the frame 1, so that the workpiece can move along the material discharge trough 11 to the outside of the frame 1, which is convenient for the centralized collection of the processed workpiece. By cooperating with the material discharge port 22 and the material discharge trough 11, the processed workpiece can be directly guided to the outside of the frame 1 without the need for manual material removal from inside the frame 1, which is convenient for subsequent collection and continuous processing.

[0033] The second clamping mechanism 7 also includes a moving component 78, which includes a motor 781, a screw 782, and a slider 783. The motor 781 is connected to the second lower pressure plate 53. The screw 782 and the slider 783 are both located inside the second lower pressure plate 53. The screw 782 is rotatably connected to the second lower pressure plate 53, and one end of it is connected to the motor 781. The slider 783 is connected to the screw 782. The top of the second bracket 71 is connected to the slider 783.

[0034] In practice, depending on the actual situation, an electric push rod 51 can be used to drive the second support 71 to move. In this embodiment, the motor 781 is connected to the second lower pressure plate 53 to provide the power required for the movement of the second clamping mechanism 7. In use, the motor 781 drives the screw 782 to rotate. The rotation of the screw 782 drives the slider 783 connected to it to move along the second lower pressure plate 53. The slider 783 drives the second support 71 to move synchronously, so that the roller 711 at the bottom of the second support 71 rolls along the guide groove 24 on the worktable 2, thereby driving the first clamping plate 72 and the second clamping plate 73 to approach the sprue of the workpiece. When the second clamping mechanism 7 moves to the corresponding position, it clamps the sprue of the workpiece. After the shearing is completed, the motor 781 rotates in the opposite direction, and the screw 782 drives the slider 783 to move in the opposite direction, so that the second support 71 and the first clamping plate 72 and the second clamping plate 73 move away from the workpiece and return to the initial position.

[0035] The second support 71 is equipped with a roller 711 at its bottom, and the worktable 2 is equipped with a guide groove 24 for the roller 711 to slide.

[0036] In practice, depending on the actual situation, the guide groove 24 may not be provided, and the roller 711 may roll directly on the worktable 2. In this embodiment, the guide groove 24 restricts the movement direction of the roller 711, so that the second support 71 remains stable during movement and avoids the second clamping mechanism 7 from deviating.

[0037] In this embodiment, through the above structure, the vision inspection mechanism 4 can perform position detection on the workpiece on the turntable 21 and adjust the position and orientation of the workpiece in conjunction with the turntable 21; the first clamping mechanism 6 and the second clamping mechanism 7 can clamp the workpiece body and the sprue respectively, so that when the shearing mechanism 8 shears the connection position between the body and the sprue, both the body and the sprue have relatively stable constraints; the multiple insert rods 74 in the second clamping mechanism 7 can extend under the cooperation of the roller block 77, the docking block 23 and the sliding plate 75, and restrict the sprue in conjunction with the first clamping plate 72 and the second clamping plate 73, so that the second clamping mechanism 7 can adapt to sprues with a certain degree of flexibility and irregular shape, reducing the possibility of workpiece deformation and displacement during clamping and shearing.

[0038] The above provides a detailed description of the automatic sprue cutting machine for visual positioning of injection molded parts provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An integrated machine for visual positioning and automatic sprue cutting of injection molded parts, comprising a frame (1) and a worktable (2), wherein the worktable (2) is located on top of the frame (1), characterized in that: A turntable (21) is rotatably mounted on the workbench (2). A discharge port (22) is opened on one side of the turntable (21) on the workbench (2). A mounting frame (3) is mounted on the workbench (2). A visual inspection mechanism (4), a pressing mechanism (5), a first clamping mechanism (6), a second clamping mechanism (7), and a shearing mechanism (8) are connected to the mounting frame (3). The pressing mechanism (5) is located above the turntable (21) and is slidably connected to the mounting frame (3). The first clamping mechanism (6) is connected to the pressing mechanism (5) and is located above the turntable (21). The second clamping mechanism (7) is located on one side of the first clamping mechanism (6) and is connected to the mounting frame (3). The shearing mechanism (8) is located on the workbench (2) and is slidably connected to it. The second clamping mechanism (7) includes a second bracket (71), a first clamping plate (72), and a second clamping plate (73). The top of the second bracket (71) is slidably connected to the pressing mechanism (5), and the bottom is slidably connected to the worktable (2). The second clamping plate (73) is located above the first clamping plate (72), and both the first clamping plate (72) and the second clamping plate (73) are threadedly connected to the second bracket (71). The first clamping plate (72) has a cavity inside, and multiple insertion rods (74) are provided inside the first clamping plate (72). The tops of the multiple insertion rods (74) all point towards the first clamping plate (71). 2) The top extends and is slidably connected to it. A sliding plate (75) is also slidably arranged inside the first clamping plate (72). The bottom of the multiple insertion rods (74) is connected to the sliding plate (75). A second compression spring (76) is wound around the outside of the multiple insertion rods (74) between the top of the sliding plate (75) and the top of the inner cavity of the first clamping plate (72). A roller (77) is provided at the bottom of the sliding plate (75). The roller (77) extends to the bottom of the first clamping plate (72) and is slidably connected to it. The second clamping plate (73) has multiple through holes (731) through which the insertion rods (74) can pass. The workbench (2) is provided with a U-shaped docking block (23) below the roller (77) for the roller (77) to roll. The visual inspection mechanism (4) can detect the position of the workpiece on the turntable (21).

2. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 1, characterized in that: The pressing mechanism (5) includes an electric push rod (51), a first pressing plate (52), and a second pressing plate (53). The electric push rod (51) is located at the top of the mounting frame (3). The first pressing plate (52) is located above the turntable (21) and is slidably connected to the mounting frame (3). The movable end of the electric push rod (51) is connected to the first pressing plate (52). The second pressing plate (53) is located below the first pressing plate (52). Two spaced connecting blocks (54) are provided between the first pressing plate (52) and the second pressing plate (53). The two connecting blocks (54) connect the first pressing plate (52) and the second pressing plate (53).

3. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 2, characterized in that: The first clamping mechanism (6) includes an arc-shaped pressure block (61) and multiple fixed rods (62). The arc-shaped pressure block is fixed to the bottom of the second lower pressure plate (53) and close to the second clamping mechanism (7). A connecting plate (63) is provided between the first lower pressure plate (52) and the second lower pressure plate (53). Multiple fixed rods (62) slide through the second lower pressure plate (53) and their tops are fixedly connected to the connecting plate (63). Guide rods (64) are provided at the bottom of the first lower pressure plate (52) at the multiple fixed rods (62). Multiple guide rods (64) slide on the top of the multiple fixed rods (62). A first compression spring (65) is wound around the outside of the multiple guide rods (64). Multiple first compression springs (65) are located between the first lower pressure plate (52) and the connecting plate (63).

4. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 1, characterized in that: The shearing mechanism (8) includes a drive assembly (81), a cutter (82), and a crossbar (83). The drive assembly (81) drives the cutter (82) and the crossbar (83) to move. The crossbar (83) and the cutter (82) are fixedly connected at intervals by a connecting rod. The cutter (82) is close to the turntable (21), and the crossbar (83) is away from the turntable (21). The cutter (82) moves between the first clamping mechanism (6) and the second clamping mechanism (7), and the crossbar (83) moves above the turntable (21).

5. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 1, characterized in that: The frame (1) is provided with a material drop chute (11) extending outward from the frame (1), and one end of the material drop chute (11) is located below the discharge port (22).

6. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 2, characterized in that: The second clamping mechanism (7) further includes a moving component (78), which includes a motor (781), a screw (782), and a slider (783). The motor (781) is connected to the second lower pressure plate (53). The screw (782) and the slider (783) are both located inside the second lower pressure plate (53). The screw (782) is rotatably connected to the second lower pressure plate (53), and one end of the screw is connected to the motor (781) for transmission. The slider (783) is connected to the screw (782) in cooperation. The top of the second bracket (71) is connected to the slider (783).

7. The integrated machine for visual positioning and automatic sprue cutting of injection molded parts according to claim 1, characterized in that: The second bracket (71) is provided with a roller (711) at the bottom, and the worktable (2) is provided with a guide groove (24) for the roller (711) to slide.

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