A continuous part taking mechanism suitable for injection molds

Abstract

This invention discloses a continuous part-retrieving mechanism suitable for injection molds. The mechanism places a crossbar above the injection molding machine and uses a moving component to move the part-retrieving component horizontally and vertically. The shearing and part-retrieving parts of the part-retrieving component achieve horizontal longitudinal movement and continuous removal of the injection-molded product and trimming of the gating gate. Ultimately, it enables alternating and continuous part-retrieving and processing by two injection molding machines, solving the problem that traditional robotic arms can only operate one injection molding machine at a time, making it more suitable for widespread use in small and medium-sized enterprises. Furthermore, compared to robotic arms which require calibration and trajectory planning, the unidirectional reciprocating movement of the moving component is easier to operate and maintain. Users only need to understand the movement values, and parameter adjustments are intuitive and easy to learn. Both the shearing and part-retrieving parts are controlled by a single drive, significantly reducing the difficulty of initial programming and subsequent maintenance, making the entire device more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and in particular to a continuous part removal mechanism suitable for injection molds. Background Technology

[0002] Injection molding machines, often called the "mother machine of the plastics industry," are core molding equipment that uses the thrust of a screw (or plunger) to inject heated, molten plastic into a closed mold cavity under high pressure and high speed. After cooling and solidification, a precision plastic product is obtained in one step. After solidification, the moving mold needs to be moved away from the fixed mold, the protective cover opened, and the finished product manually removed. Special shears are then used to trim any residual plastic edges from the sprue to ensure the quality of the next injection molded product. With technological advancements, some companies have adopted robotic arms to replace manual material handling and have installed conveyor belts on one side of the injection molding machine. The robotic arms then remove the finished product and place it onto the conveyor belt, achieving automated operation.

[0003] However, a single robotic arm can only be used with a single injection molding machine, which not only results in high procurement costs but also high operating and maintenance costs, making it unsuitable for widespread use in small and medium-sized enterprises. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a continuous part removal mechanism suitable for injection molds.

[0005] The present invention provides a continuous part removal mechanism suitable for injection molds, comprising:

[0006] A crossbar extends along a first direction and is positioned above two injection molding machines arranged along the first direction, with storage space provided on the same side of both injection molding machines;

[0007] The part-retrieving assembly includes a main mounting plate located below the crossbar, wherein a part-retrieving part and a shearing part are arranged in the middle of the main mounting plate along a first direction;

[0008] The part-retrieving part includes a suction cup, which has a forward phase and a retraction phase. When the suction cup is in the forward phase, it moves along a second direction and abuts against the injection-molded product. When the suction cup is in the retraction phase, a negative pressure is formed inside the suction cup and it adsorbs the injection-molded product, thereby causing the injection-molded product to reset. After resetting, the negative pressure is released.

[0009] The shearing section includes a first sleeve with its axis in the second direction, and a cutting blade disposed on the first sleeve near the injection-molded finished end. The extension direction of the cutting blade is perpendicular to the axis of the first sleeve. The cutting blade has a straight cutting stage and a circumferential cutting stage. When the cutting blade is in the straight cutting stage, the cutting blade and the first sleeve move along the second direction. When the cutting blade is in the circumferential cutting stage, the first sleeve rotates and drives the cutting blade to rotate, cutting off the residual material at the injection port.

[0010] A movable component, located at the bottom of the crossbar, is used to drive the picking component to move along a first direction and / or a vertical direction.

[0011] According to the technical solution provided in the embodiments of this application, the part-retrieving part includes a telescopic adsorption structure, the telescopic adsorption structure comprising:

[0012] The second sleeve has an air nozzle at one end, which is connected to an air source via a hose, and a hollow telescopic tube is slidably connected to the other end. The suction cup is connected to the first end of the hollow telescopic tube.

[0013] The piston is located inside the second sleeve, and an adjusting groove is provided at the end away from the air nozzle. A limiting plate is slidably connected inside the adjusting groove. The limiting plate is sealed to the tail end of the hollow telescopic tube. Several connecting channels are provided at the end of the hollow telescopic tube near the limiting plate.

[0014] The limiting component includes a first annular plate located at the tail end of the piston, and a second annular plate with an insertion adjustment groove on the inner wall of the first annular plate.

[0015] According to the technical solution provided in the embodiments of this application, the picking part further includes a driving structure. The driving structure includes a second motor disposed on the main mounting plate. A second adjusting shaft is coaxially mounted on the output shaft end of the second motor. The axial direction of the second adjusting shaft is a second direction. The second direction, the first direction, and the vertical direction are perpendicular to each other. The end of the second adjusting shaft is connected to a second sleeve. The axis of the second sleeve is perpendicular to the axis of the second adjusting shaft.

[0016] According to the technical solution provided in the embodiments of this application, the second adjusting shaft end is provided with a mounting block, one end of the second sleeve is connected to the mounting block, the air nozzle is provided on the side wall of the second sleeve near the mounting block, and the piston end near the mounting block is provided with a limiting post.

[0017] According to the technical solution provided in the embodiments of this application, the cut portion includes:

[0018] The first sleeve has the cutting blade installed at one end and the first adjusting shaft connected through and fitted at the other end.

[0019] The first limiting structure includes a shrinkage channel disposed on the main mounting plate and fitting with the first sleeve. The inner wall of the shrinkage channel is provided with a first guide block. The outer wall of the first sleeve is provided with a guide straight groove that fits with the first guide block and is parallel to the axis of the first sleeve. The guide straight groove is provided with a guide annular groove away from the cutting blade end. The inner wall of the guide annular groove is provided with a one-way limiting member. The one-way limiting member is used to guide the first guide block into the guide straight groove when the first adjusting shaft rotates in the reverse direction.

[0020] The second limiting structure includes a spiral guide groove provided on the inner wall of the first sleeve, and a second guide block installed at the end of the first adjusting shaft and fitting with the spiral guide groove;

[0021] A drive structure is used to drive the first adjusting shaft to rotate.

[0022] According to the technical solution provided in the embodiments of this application, the moving component includes a first linear drive module disposed at the bottom of the crossbar, a second linear drive module is installed at the moving end of the first linear drive module, a third linear drive module is installed at the moving end of the second linear drive module, and the main mounting plate is installed at the moving end of the third linear drive module through a connecting plate.

[0023] The moving end of the third linear drive module drives the main mounting plate to move along the first direction, the moving end of the second linear drive module drives the third linear drive module to move along the vertical direction, and the moving end of the first linear drive module drives the second linear drive module to move along the first direction.

[0024] According to the technical solution provided in the embodiments of this application, it also includes a support assembly. The support assembly includes two uprights distributed on both sides of the crossbar along a second direction. The bottom ends of the uprights are installed on the ground through a base plate. A plurality of reinforcing steels are provided between the two uprights. The crossbar is installed at the bottom end of one of the reinforcing steels. Traction rods are provided at both ends of the crossbar. The top ends of the two traction rods are connected to the reinforcing steel at the top of the uprights.

[0025] According to the technical solution provided in the embodiments of this application, the mobile end of the second linear drive module is equipped with a T-shaped mounting component, the T-shaped mounting component includes a horizontal plate and a vertical plate, the third linear drive module is installed on the top side of the vertical plate, and a material collection component is provided at the bottom side of the vertical plate. The material collection component is used to collect waste material from the injection gate and injection molded finished products.

[0026] According to the technical solution provided in the embodiments of this application, the shearing part further includes a support column disposed on the main mounting plate, the support column is provided with a secondary mounting plate away from the cutting blade end, a first motor is mounted on the secondary mounting plate, and the output end of the first motor is connected to a first adjusting shaft; the vertical plate is provided with an avoidance groove extending in a first direction at the position corresponding to the support column.

[0027] According to the technical solution provided in the embodiments of this application, the material collection assembly includes an inclined plate and a carrier plate connected to the bottom of the vertical plate, and a baffle is provided on the top edge of the inclined plate and the carrier plate.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] This invention places a crossbar above the injection molding machine. A moving component allows for horizontal and vertical movement of the part-retrieving component. The shearing and part-retrieving parts of the part-retrieving component achieve horizontal and vertical movement, continuous removal of the injection-molded product, and gate trimming. Ultimately, this allows for alternating and continuous part-retrieving and processing by two injection molding machines, solving the problem that traditional robotic arms can only operate one machine at a time, making it more suitable for widespread use in small and medium-sized enterprises. Furthermore, the shearing part uses a first motor, a first limiting structure, and a second limiting structure to achieve single-drive control of the cutting blade's forward, rotary cutting, and backward movement. The part-retrieving part uses a telescopic suction structure and a single air nozzle for air supply and extraction to adsorb and remove the injection-molded product, also achieving single-drive control of air supply for forward movement and air extraction for adsorption and removal. The purpose is to facilitate the operation and maintenance of the mobile component, which consists of multiple linear drive modules. Compared to the need for calibration and trajectory planning in a robotic arm, the unidirectional reciprocating movement of the mobile component is easier to operate and maintain. Users only need to understand the movement values, and parameter adjustments are intuitive and easy to learn. The shearing section and the part picking section are controlled by individual drives, which greatly reduces the difficulty of initial programming and subsequent maintenance, making the entire device more convenient to use. Furthermore, a material collection component is set up to facilitate the collection of waste material from the injection port and the injection molded product. In addition, a second motor and a second adjusting shaft are also set up to swing the injection molded product downwards, so that the injection molded product can fall stably into the material collection component, improving collection efficiency.

[0030] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0031] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 A schematic diagram of a continuous part-removing mechanism suitable for injection molds is provided for embodiments of this application;

[0033] Figure 2 This is a top view of the continuous pickup mechanism in the embodiments of this application;

[0034] Figure 3 This is a schematic diagram of the picking mechanism in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the shearing assembly and the part-retrieving assembly in the embodiments of this application;

[0036] Figure 5This is a cross-sectional view of the main mounting plate in an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of the stretchable adsorption structure in the embodiments of this application;

[0038] Figure 7 This is a schematic diagram of the material collection mechanism in the embodiments of this application;

[0039] Figure 8 for Figure 7 A magnified structural diagram of region A in the middle;

[0040] Figure 9 This is a schematic diagram of the structure of the unidirectional limiting member in the embodiments of this application.

[0041] Numbering on the map:

[0042] 1. Crossbar;

[0043] 2. Support components; 21. Upright pole; 22. Reinforcing steel; 23. Traction rod; 24. Base plate;

[0044] 3. Moving component; 31. First linear drive module; 32. Second linear drive module; 33. T-shaped mounting piece; 331. Horizontal plate; 332. Vertical plate; 333. Clearance groove; 34. Third linear drive module;

[0045] 4. Pick-up assembly; 41. Connecting plate; 42. Main mounting plate;

[0046] 5. Aggregator assembly; 51. Inclined plate; 52. Carrier plate; 53. Baffle plate;

[0047] 6. Cutting end; 61. Support column; 62. Secondary mounting plate; 63. First motor; 64. First adjusting shaft; 65. First sleeve; 66. Cutting blade; 67. Spiral guide groove; 68. Guide annular groove; 69. Guide straight groove; 610. Shrinkage channel; 611. First guide block; 612. Connecting ring; 613. Second guide block; 614. One-way limiting component;

[0048] 7. Picking-up section; 71. Second motor; 72. Support shaft seat; 73. Second adjusting shaft; 74. Mounting block; 75. Telescopic suction structure; 751. Second sleeve; 752. Air nozzle; 753. Piston; 754. Limiting post; 755. Adjusting slide; 756. First annular plate; 757. Second annular plate; 758. Hollow telescopic tube; 759. Limiting plate; 7510. Connecting channel; 7511. Suction cup;

[0049] 8. Electrical control module; 9. Injection molding machine. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] Please refer to Figures 1-9 The present invention provides a continuous part-removing mechanism suitable for injection molds, comprising:

[0053] A crossbar 1 extends along a first direction and is positioned above two injection molding machines 9 arranged along the first direction. Storage space is provided on the same side of both injection molding machines 9. The first direction is... Figure 1 The horizontal direction in the middle, that is, the left and right direction.

[0054] The part-retrieving assembly 4 includes a main mounting plate 42 located below the crossbar 1. The part-retrieving part 7 and the shearing part 6 are arranged in the middle of the main mounting plate 42 along the first direction.

[0055] The part-retrieving unit 7 includes a suction cup 7511, which has a forward phase and a retraction phase. When the suction cup 7511 is in the forward phase, it moves along the second direction and abuts against the injection molded product. When the suction cup 7511 is in the retraction phase, a negative pressure is formed inside the suction cup 7511 and it adsorbs the injection molded product, thereby driving the injection molded product to reset. After resetting, the negative pressure is released.

[0056] The shearing part 6 includes a first sleeve 65 with the axis direction in the second direction, and a cutting blade 66 disposed on the first sleeve 65 near the injection molded finished end. The extension direction of the cutting blade 66 is perpendicular to the axis of the first sleeve 65. The cutting blade 66 has a straight cutting stage and a circumferential cutting stage. When the cutting blade 66 is in the straight cutting stage, the cutting blade 66 and the first sleeve 65 move along the second direction. When the cutting blade 66 is in the circumferential cutting stage, the first sleeve 65 rotates and drives the cutting blade 66 to rotate, cutting off the residual material at the injection gate.

[0057] The moving component 3 is located at the bottom of the crossbar 1 and is used to drive the picking component 4 to move along the first direction and / or the vertical direction.

[0058] In operation, the moving component 3 is activated, sending the part-retrieving component 4 to one injection molding machine 9. While the other injection molding machine 9 performs its injection operation, the part-retrieving component 4 removes the molded product via the part-retrieving section 7 and the shearing section 6, and cuts off any remaining material from the sprue. Compared to traditional robotic arms that can only operate on one injection molding machine 9, the moving component 3 can call the part-retrieving component 4 to perform continuous part-retrieving operations on multiple injection molding machines 9, improving injection part-retrieving efficiency. The injection molds are arranged horizontally and vertically. Because the part-retrieving section 7 and the shearing section 6 are horizontally arranged, during operation, the part-retrieving section 7 is aligned with the outermost cavity, while the shearing section 6 is located on the outside of the entire injection mold. After part-retrieving, the moving component 3 controls the part-retrieving component 4 to move, aligning the part-retrieving section 7 with the next cavity and the shearing section 6 with the outermost cavity, thus progressively retrieving parts and cutting off excess material.

[0059] The suction cup 7511 of the part-retrieving section 7 and the cutting blade 66 of the shearing section 6 are both multi-stage, ensuring that the suction cup 7511 can adsorb the injection molded product and remove it, and also ensuring that the cutting blade 66 moves into the cavity and cuts the remaining material at the sprue by rotation. Optionally, the part-retrieving section 7 may include an electric push rod and an air extraction pipe. The electric push rod pushes the suction cup 7511 to move, and the air extraction pipe is connected to an air source. Through the cooperation of the two, the purpose of moving the suction cup 7511 and adsorbing the injection molded product is achieved. Optionally, the shearing section 6 may include an electric push rod, a long toothed groove on the outer wall of the first sleeve 65, and an electric motor mounted on the main mounting plate 42. A gear mounted on the electric motor meshes with the long toothed groove. The first sleeve 65 passes through the main mounting plate 42, and the electric push rod pushes the first sleeve 65 to move. Under the engagement of the gear and the long toothed groove, the first sleeve 65 maintains stable horizontal longitudinal movement. After the cutting blade 66 reaches the designated position, the electric motor is activated, and based on the engagement of the gear and the long toothed groove, the cutting blade 66 is driven to rotate, thus cutting off the excess material at the injection gate. Optionally, an electrical control module 8 is provided on one side of the injection molding machine 9 to realize automated control. The programming and control methods are existing technologies and will not be described in detail here.

[0060] In some embodiments, the picking part 7 includes a telescopic adsorption structure 75, the telescopic adsorption structure 75 including:

[0061] The second sleeve 751 has an air nozzle 752 at one end, which is connected to an air source through a hose. The other end is sealed and slidably connected to a hollow telescopic tube 758, and a suction cup 7511 is connected to the first end of the hollow telescopic tube 758.

[0062] Piston 753 is located inside the second sleeve 751. An adjusting groove 755 is provided at the end away from the air nozzle 752. A limiting plate 759 is slidably connected inside the adjusting groove 755. The limiting plate 759 is sealed to the tail end of the hollow telescopic tube 758. Several connecting channels 7510 are provided at the end of the hollow telescopic tube 758 near the limiting plate 759.

[0063] The limiting component includes a first annular plate 756 located at the tail end of the piston 753, and a second annular plate 757 with an insertion adjustment groove 755 on the inner wall of the first annular plate 756.

[0064] refer to Figures 4 to 6 As shown, during the forward movement of the part removal process, the air source inflates the second sleeve 751 through the air nozzle 752, causing the piston 753 to move downwards (towards the injection-molded product side). The piston 753 pushes the limiting plate 759 and the hollow telescopic tube 758 to move until the suction cup 7511 comes into contact with the injection-molded product. At this point, the forward movement is complete, and the state of the suction cup 7511 can be referenced. Figure 6 .

[0065] After the forward phase is completed, the contraction phase is executed. The air source draws air from the second sleeve 751 through the air nozzle 752, and the piston 753 moves upward (towards the side away from the injection molded product). At this time, the lower half space of the piston 753 and the second sleeve 751 (located on the side of the piston 753 closer to the injection molded product) expands, and the pressure in the lower half space decreases. The gas inside the hollow telescopic tube 758 and the suction cup 7511 enters the lower half space through the connecting channel 7510, thereby reducing the pressure inside the suction cup 7511, the hollow telescopic tube 758 and the lower half space. Then, under the action of atmospheric pressure, the suction cup 7511 is adsorbed onto the surface of the injection molded product.

[0066] After further evacuation during the contraction phase, because the limiting plate 759 fits into the adjusting groove 755 and the second annular plate 757 is embedded inside the adjusting groove 755, as the piston 753 continues to move, it will drive the limiting plate 759, the hollow telescopic tube 758, the suction cup 7511 and the injection molded product to detach from the cavity through the second annular plate 757, thereby achieving the purpose of removing the part.

[0067] In the final step of the shrinkage stage, the air source inflates the second sleeve 751 through the air nozzle 752, reducing the lower space, increasing the pressure, and decreasing the suction force. The injection molded product moves from the suction cup 7511 side. Optionally, the moving component 3 can be activated before inflation to remove the injection molded product from the space of the injection mold.

[0068] In some embodiments, the picking unit 7 further includes a driving structure, which includes a second motor 71 disposed on the main mounting plate 42. A second adjusting shaft 73 is coaxially mounted on the output shaft end of the second motor 71. The axial direction of the second adjusting shaft 73 is a second direction. The second direction, the first direction, and the vertical direction are perpendicular to each other. The end of the second adjusting shaft 73 is connected to a second sleeve 751. The axis of the second sleeve 751 is perpendicular to the axis of the second adjusting shaft 73.

[0069] By starting the second motor 71, the second adjusting shaft 73 is driven to rotate, causing the second sleeve 751 to swing downwards, so that the injection molded product is detached and falls downwards. This eliminates the need to start the moving component 3, thereby removing the injection molded product from the space of the injection mold and improving the efficiency of picking up and placing parts, making it easier to pick up the next injection molded product more quickly.

[0070] To facilitate the connection between the second adjusting shaft 73 and the second sleeve 751, preferably, the end of the second adjusting shaft 73 is provided with a mounting block 74, one end of the second sleeve 751 is connected to the mounting block 74, the air nozzle 752 is provided on the side wall of the second sleeve 751 near the mounting block 74, and the piston 753 is provided with a limiting post 754 near the end of the mounting block 74.

[0071] The air nozzle 752 faces away from the second motor 71 to facilitate connection of the air supply hose. The limiting post 754 prevents the piston 753 from contacting the inner wall of the second sleeve 751, thus avoiding a situation where subsequent air extraction or supply cannot continue. More preferably, a support shaft seat 72 is provided on the main mounting plate 42, and the second adjusting shaft 73 is installed through the support shaft seat 72 to maintain the stability of the second adjusting shaft 73.

[0072] In some embodiments, the slit portion 6 includes:

[0073] The first sleeve 65 has a cutting blade 66 installed at one end and a first adjusting shaft 64 connected through and fitting at the other end.

[0074] The first limiting structure includes a shrinkage channel 610 disposed on the main mounting plate 42 and fitted with the first sleeve 65. The inner wall of the shrinkage channel 610 is provided with a first guide block 611. The outer wall of the first sleeve 65 is provided with a guide straight groove 69 that fits with the first guide block 611 and is parallel to the axis of the first sleeve 65. The end of the guide straight groove 69 away from the cutting blade 66 is provided with a guide annular groove 68. The inner wall of the guide annular groove 68 is provided with a one-way limiting member 614. The one-way limiting member 614 is used to guide the first guide block 611 into the guide straight groove 69 when the first adjusting shaft 64 rotates in the opposite direction.

[0075] The second limiting structure includes a spiral guide groove 67 provided on the inner wall of the first sleeve 65, and a second guide block 613 installed at the end of the first adjusting shaft 64 and fitting with the spiral guide groove 67.

[0076] A drive structure is used to drive the first adjusting shaft 64 to rotate.

[0077] When the first adjusting shaft 64 rotates in the positive direction, the second guide block 613 will move along the spiral guide groove 67. Because of the restriction of the guide straight groove 69 and the first guide block 611, the first sleeve 65 cannot rotate and can only move towards the inside of the cavity. When the second guide block 613 moves to the end of the spiral guide groove 67, the first guide block 611 enters the guide annular groove 68. This process belongs to the linear stage.

[0078] After the first adjusting shaft 64 continues to rotate, the first guide block 611 is released from the restriction of the guide groove 69, and the second guide block 613 drives the first sleeve 65 to rotate, so that the cutting blade 66 can remove the excess material at the pouring gate. This is the ring cutting stage.

[0079] After cutting is completed, the first adjusting shaft 64 is rotated in the reverse direction. Initially, the first guide block 611 is restricted by the guide annular groove 68, and the second guide block 613 will not move along the spiral guide groove 67. However, the one-way limiting member 614 restricts the continuous reverse rotation of the first sleeve 65 and guides the first guide block 611 into the guide straight groove 69. After the first guide block 611 enters the guide straight groove 69, the first adjusting shaft 64 continues to rotate in the reverse direction, which will drive the first sleeve 65 to retract and reset for the next use.

[0080] refer to Figure 9 The one-way limiting member 614 can be triangular in shape, with one arc surface fitting against the inner wall of the guide annular groove 68, one straight surface coinciding with the side of the guide straight groove 69, and the other arc surface abutting against the first guide block 611. When the first sleeve 65 rotates in the forward direction, the first guide block 611 moves along the angle between the two arc surfaces, squeezing the one-way limiting member 614. The one-way limiting member 614 deforms, ensuring that the first guide block 611 can smoothly pass through the one-way limiting member 614 when rotating in the forward direction. When the first sleeve 65 rotates in the reverse direction, it abuts against the one-way limiting member 614. When the straight surface of part 614 is restricted, it is difficult to directly flatten the one-way restrictor 614. Therefore, under the action of the spiral guide groove 67, the first sleeve 65 enters the guide groove 69 along the straight surface to complete the guiding purpose. When the first adjusting shaft 64 rotates in the opposite direction, it will drive the first sleeve 65 to retract and reset. More preferably, the guide annular groove 68 is provided with a groove at the position of the one-way restrictor 614, and the one-way restrictor 614 is glued inside the groove, which facilitates the installation and positioning of the one-way restrictor 614.

[0081] The projection of the first sleeve 65 within the cavity is located on one side of the pouring gate. After rotation, the cutting blade 66 can remove excess material at the pouring gate. When the first guide block 611 enters the guide annular groove 68, the cutting blade 66 adheres to the inner wall surface of the cavity. The cutting blade 66 is suitable for plate-shaped or planar injection molded products, but cannot be used for injection molded products with complex shapes. In addition, the bottom surface of the cavity may have a slope. The flatness of the slope does not need to be increased, but it is necessary to ensure that the angle between the slope and the inner wall surface of the cavity is an obtuse angle, so that the waste material after cutting can be discharged from the cavity. Preferably, a nozzle is provided at the top of the main mounting plate 42 corresponding to the position of the first sleeve 65. The tail end of the nozzle is connected to an air source through a hose, and the other end sprays high-pressure gas into the cavity to sweep the cut waste material out of the cavity and avoid interfering with the next injection molding. Optionally, the first guide block 611 is connected to the first adjusting shaft 64 via a connecting ring 612. Specifically, a screw passes through the connecting ring 612 and is threadedly connected to the first adjusting shaft 64. The connecting ring 612 is fixedly held in place by the screw, thus achieving the purpose of the connecting ring 612 and the first guide block 611.

[0082] In some embodiments, the moving component 3 includes a first linear drive module 31 disposed at the bottom of the crossbar 1, a second linear drive module 32 mounted on the moving end of the first linear drive module 31, a third linear drive module 34 mounted on the moving end of the second linear drive module 32, and a main mounting plate 42 mounted on the moving end of the third linear drive module 34 via a connecting plate 41.

[0083] The moving end of the third linear drive module 34 drives the main mounting plate 42 to move along the first direction, the moving end of the second linear drive module 32 drives the third linear drive module 34 to move along the vertical direction, and the moving end of the first linear drive module 31 drives the second linear drive module 32 to move along the first direction.

[0084] The first linear drive module 31 and the third linear drive module 34 adopt a screw-type linear drive module. A motor drives the screw to rotate, causing the screw nut to move linearly along the screw. The moving ends of both are sliders connected to the screw nut. The first linear drive module 31 adjusts the slider left and right, mainly used for switching between two injection molding machines 9. The third linear drive module 34 is used to move the part-taking assembly 4 left and right, used for switching between different cavities in different injection molds. Using two linear drive methods makes it easier to control the movement of corresponding components, resulting in more flexible operation.

[0085] In addition, the second linear drive module 32 can be a pneumatic telescopic cylinder, the moving end of which is the piston rod end of the pneumatic telescopic cylinder. The vertical movement of the piston rod end facilitates the lifting assembly 4 to detach upward from the injection molding machine 9 or to penetrate into the injection mold. Optionally, the first linear drive module 31 is provided with two sliders, and the number of second linear drive modules 32 is set to two, which are respectively installed on the two sliders to improve the stability of the third linear drive module 34.

[0086] In some embodiments, a support assembly 2 is also included. The support assembly 2 includes two uprights 21 distributed on both sides of the crossbar 1 along a second direction. The bottom ends of the uprights 21 are installed on the ground through a base plate 24. A plurality of reinforcing steels 22 are provided between the two uprights 21. The crossbar 1 is installed at the bottom end of one of the reinforcing steels 22. Traction rods 23 are provided at both ends of the crossbar 1. The top ends of the two traction rods 23 are connected to the reinforcing steels 22 at the top of the uprights 21.

[0087] Compared to a single upright 21, the structural frame formed by two uprights 21 and reinforcing steel 22 is more stable. Furthermore, it facilitates the placement of the traction rod 23 to distribute the load on the crossbar 1, preventing downward bending or breakage at both ends. To ensure the stability of the moving component 3 and the picking component 4, the gap between the two uprights 21 must be greater than the combined width, and the interval between the crossbar 1 and the reinforcing steel 22 below should be greater than the combined length, ensuring that the picking component 4 can stably pass through the two uprights 21.

[0088] In some embodiments, the moving end of the second linear drive module 32 is equipped with a T-shaped mounting member 33, which includes a horizontal plate 331 and a vertical plate 332. The third linear drive module 34 is mounted on the top side of the vertical plate 332, and a material collection component 5 is provided at the bottom side of the vertical plate 332. The material collection component 5 is used to collect waste material from the injection gate and the injection molded finished product.

[0089] The design of the T-shaped mounting bracket 33 facilitates the installation of the third linear drive module 34, avoiding the inconvenience of directly installing the third linear drive module 34 onto the second linear drive module 32. In addition, the material collection component 5 can carry waste material and injection molded finished products. After the parts are picked up, the T-shaped mounting bracket 33 and the material collection component 5 are moved to the outside of the injection molding machine 9 for further collection and retrieval. Optionally, a drag chain and drag chain groove are provided on the top surface of the crossbar 1 to protect the wires. In addition, a drag chain and drag chain groove are also provided on the top of the cross plate 331, and extend upward to connect with the wires on the top surface of the crossbar 1 to protect the connecting wires. The setting method of the drag chain and drag chain groove is existing technology and will not be described in detail here.

[0090] In some embodiments, the shearing portion 6 further includes a support column 61 disposed on the main mounting plate 42. A secondary mounting plate 62 is disposed at the end of the support column 61 away from the cutting blade 66. A first motor 63 is mounted on the secondary mounting plate 62, and the output end of the first motor 63 is connected to a first adjusting shaft 64. A clearance groove 333 extending in a first direction is provided on the vertical plate 332 at the position corresponding to the support column 61. This facilitates the installation of the first motor 63, and the clearance groove 333 ensures stable movement of the first motor 63.

[0091] In some embodiments, the material collection assembly 5 includes an inclined plate 51 and a carrier plate 52 connected to the bottom of the vertical plate 332, with baffles 53 provided on the top edges of the inclined plate 51 and the carrier plate 52. Waste materials and injection-molded finished products slide down the inclined plate 51 onto the carrier plate 52 and are not easily detached due to the restriction of the baffles 53. Once there is enough material on the carrier plate 52, it is removed by workers for unified processing. During unified processing, the T-shaped mounting piece 33 and the material collection assembly 5 can be fed into the storage space via the first linear drive module 31, facilitating user operation.

[0092] In some embodiments, the materials of each component are selected to be high-strength and low-weight, such as carbon fiber, to improve the stability of the operation of each component and reduce the occurrence of bending or breakage. Furthermore, the contact surfaces between each component can be selected to be machined with high precision, with a surface roughness Ra of about 0.1 to 0.4, resulting in smooth contact surfaces, low resistance, and ensuring the stable operation of each component.

[0093] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0094] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A continuous part-removing mechanism suitable for injection molds, characterized in that, include: A crossbar (1) extends along a first direction and is positioned above two injection molding machines (9) arranged along the first direction, with storage space provided on the same side of both injection molding machines (9); The part-retrieving assembly (4) includes a main mounting plate (42) located below the crossbar (1), wherein a part-retrieving part (7) and a shearing part (6) are arranged in the middle of the main mounting plate (42) along a first direction; The part-retrieving part (7) includes a suction cup (7511), which has a forward phase and a retraction phase. When the suction cup (7511) is in the forward phase, it moves along a second direction and abuts against the injection-molded product. When the suction cup (7511) is in the retraction phase, a negative pressure is formed inside the suction cup (7511) and it adsorbs the injection-molded product, thereby driving the injection-molded product to reset. After resetting, the negative pressure is released. The shearing section (6) includes a first sleeve (65) with its axis in the second direction, and a cutting blade (66) disposed on the first sleeve (65) near the injection-molded finished end. The extension direction of the cutting blade (66) is perpendicular to the axis of the first sleeve (65). The cutting blade (66) has a straight cutting stage and a circumferential cutting stage. When the cutting blade (66) is in the straight cutting stage, the cutting blade (66) and the first sleeve (65) move along the second direction. When the cutting blade (66) is in the circumferential cutting stage, the first sleeve (65) rotates and drives the cutting blade (66) to rotate, cutting off the residual material at the injection port. The moving component (3) is located at the bottom of the crossbar (1) and is used to drive the picking component (4) to move along the first direction and / or the vertical direction.

2. The continuous part-removing mechanism for injection molds according to claim 1, characterized in that, The part-retrieving section (7) includes a telescopic adsorption structure (75), which includes: The second sleeve (751) has an air nozzle (752) at one end, which is connected to an air source through a hose, and a hollow telescopic tube (758) is sealed and slidably connected at the other end. The suction cup (7511) is connected to the first end of the hollow telescopic tube (758). The piston (753) is located inside the second sleeve (751). An adjusting groove (755) is provided at the end away from the air nozzle (752). A limiting plate (759) is slidably connected inside the adjusting groove (755). The limiting plate (759) is sealed to the tail end of the hollow telescopic tube (758). Several connecting channels (7510) are provided at the end of the hollow telescopic tube (758) near the limiting plate (759). The limiting component includes a first annular plate (756) located at the tail end of the piston (753), and a second annular plate (757) with an insertion adjustment groove (755) is provided on the inner wall of the first annular plate (756).

3. A continuous part-removing mechanism suitable for injection molds according to claim 2, characterized in that, The picking unit (7) also includes a drive structure, which includes a second motor (71) mounted on the main mounting plate (42). The output shaft end of the second motor (71) is coaxially mounted with a second adjusting shaft (73). The axis direction of the second adjusting shaft (73) is a second direction. The second direction, the first direction and the vertical direction are perpendicular to each other. The end of the second adjusting shaft (73) is connected to a second sleeve (751). The axis of the second sleeve (751) is perpendicular to the axis of the second adjusting shaft (73).

4. A continuous part-removing mechanism suitable for injection molds according to claim 3, characterized in that, The second adjusting shaft (73) has a mounting block (74) at its end. One end of the second sleeve (751) is connected to the mounting block (74). The air nozzle (752) is located on the side wall of the second sleeve (751) near the mounting block (74). The piston (753) has a limiting post (754) near the mounting block (74).

5. A continuous part-removing mechanism suitable for injection molds according to claim 1, characterized in that, The cut portion (6) includes: The first sleeve (65) has the cutting blade (66) installed at one end and the first adjusting shaft (64) connected through and fitting at the other end. The first limiting structure includes a shrinkage channel (610) disposed on the main mounting plate (42) and fitted with the first sleeve (65). The inner wall of the shrinkage channel (610) is provided with a first guide block (611). The outer wall of the first sleeve (65) is provided with a guide straight groove (69) that fits with the first guide block (611) and is parallel to the axis of the first sleeve (65). The end of the guide straight groove (69) away from the cutting blade (66) is provided with a guide annular groove (68). The inner wall of the guide annular groove (68) is provided with a one-way limiting member (614). The one-way limiting member (614) is used to guide the first guide block (611) into the guide straight groove (69) when the first adjusting shaft (64) rotates in the opposite direction. The second limiting structure includes a spiral guide groove (67) provided on the inner wall of the first sleeve (65) and a second guide block (613) installed at the end of the first adjusting shaft (64) and fitting with the spiral guide groove (67). A drive structure is used to drive the first adjusting shaft (64) to rotate.

6. A continuous part-removing mechanism suitable for injection molds according to claim 5, characterized in that, The moving component (3) includes a first linear drive module (31) disposed at the bottom of the crossbar (1), a second linear drive module (32) is installed at the moving end of the first linear drive module (31), a third linear drive module (34) is installed at the moving end of the second linear drive module (32), and the main mounting plate (42) is installed at the moving end of the third linear drive module (34) through the connecting plate (41). The moving end of the third linear drive module (34) drives the main mounting plate (42) to move along the first direction, the moving end of the second linear drive module (32) drives the third linear drive module (34) to move along the vertical direction, and the moving end of the first linear drive module (31) drives the second linear drive module (32) to move along the first direction.

7. A continuous part-removing mechanism suitable for injection molds according to claim 1, characterized in that, It also includes a support assembly (2), which includes two uprights (21) distributed along the second direction on both sides of the crossbar (1). The bottom end of the uprights (21) is installed on the ground through a base plate (24). Several reinforcing steels (22) are provided between the two uprights (21). The crossbar (1) is installed at the bottom end of one of the reinforcing steels (22). The two ends of the crossbar (1) are provided with traction rods (23). The top ends of the two traction rods (23) are connected to the reinforcing steels (22) at the top of the uprights (21).

8. A continuous part-removing mechanism suitable for injection molds according to claim 6, characterized in that, The second linear drive module (32) has a T-shaped mounting component (33) installed on its moving end. The T-shaped mounting component (33) includes a horizontal plate (331) and a vertical plate (332). The third linear drive module (34) is installed on the top side of the vertical plate (332). The bottom side of the vertical plate (332) is provided with a material collection component (5). The material collection component (5) is used to collect waste material from the injection gate and the injection molded finished product.

9. A continuous part-removing mechanism suitable for injection molds according to claim 8, characterized in that, The shearing section (6) also includes a support column (61) on the main mounting plate (42). The end of the support column (61) away from the cutting blade (66) is provided with a secondary mounting plate (62). A first motor (63) is mounted on the secondary mounting plate (62). The output end of the first motor (63) is connected to the first adjusting shaft (64). The vertical plate (332) is provided with a clearance groove (333) extending in the first direction at the position corresponding to the support column (61).

10. A continuous part-removing mechanism suitable for injection molds according to claim 8, characterized in that, The material collection assembly (5) includes an inclined plate (51) and a carrier plate (52) connected to the bottom of the vertical plate (332), and a baffle (53) is provided on the top edge of the inclined plate (51) and the carrier plate (52).

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