Laser cutting device for water gap of injection molded part

Abstract

The invention relates to the technical field of metal cutting, and discloses an injection molding part water gap laser cutting device which comprises a workbench. The positioning seat is slidably arranged at the top end of the workbench in the transverse direction, and the positioning seat is used for positioning and placing a to-be-cut injection molding part; the slag separating and flow guiding mechanism is arranged above the positioning seat; the slag separating and flow guiding assembly comprises two slag separating plates, and when the injection molding part to be cut is cut, the two slag separating plates are oppositely arranged to separate and block molten slag and waste materials; the material taking and placing mechanism is arranged on one side of the workbench, the material taking and placing mechanism comprises a movable cross beam, the movable cross beam can vertically move along the workbench, and a mechanical clamping jaw is arranged on one side of the movable cross beam and used for transferring the to-be-cut injection molding part placed on the positioning seat to the position above the slag separating and flow guiding mechanism to be cut; and the laser cutting arm is arranged on one side of the workbench relative to the slag separating and flow guiding mechanism. The injection molding part water gap laser cutting device can effectively solve the problem that in the prior art, water gap waste generated by laser cutting is inconvenient to clean.

Description

Technical Field

[0001] This invention relates to the field of injection molding metal cutting technology, and more specifically to a laser cutting device for injection molding sprues. Background Technology

[0002] After injection molding, the remaining metal gates need to be removed by cutting. Compared with traditional mechanical cutting, laser cutting has advantages such as no tool wear, fast cutting speed, and smooth cut. Therefore, using laser cutting robots to remove gates has become the mainstream processing method.

[0003] In related technologies, for injection molded parts whose cutting range exceeds the working radius of the robotic arm, the remaining cutting can be completed in place by rotating the injection molded part itself, thus eliminating the need for secondary positioning. For example, the prior art patent CN121042749A provides an automatic laser cutting robot for automotive exterior parts and its forming equipment. This device drives the exterior parts to rotate by rotating the support frame mounted on the frame, and with the help of the elastic clamping component and the pre-tightening mechanism, a greater clamping force is applied to the workpiece during rotation, thereby solving the problem of workpiece displacement due to centrifugal force and vibration during rotation and ensuring cutting accuracy.

[0004] While the existing technical solutions described above achieve the effect of automatic sprue cutting by a laser-cutting robot by using a rotating support to rotate the injection molded part, in actual cutting, the metal sprue scrap removed by the laser falls directly under gravity. Since the support is located directly below the workpiece to support it, the fallen scrap easily accumulates on the support and scatters into the movement gaps of the support structure (such as the electric telescopic rod and the abutment plate) and the pre-tightening mechanism. As the number of workpieces processed increases, the scrap accumulates. On the one hand, the scrap occupies support space, preventing subsequent workpieces from being placed stably, causing positioning deviations, and even scratching the workpiece surface; on the other hand, scrap falling into the mechanical fit gaps exacerbates component wear and may even jam the moving mechanism. Existing solutions typically require manual cleaning after machine shutdown, which not only increases the labor intensity of workers but also severely impacts the efficiency of automated continuous operation due to frequent shutdowns for cleaning. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a laser cutting device for injection molded parts sprue, which can effectively solve the problem that the sprue waste generated by laser cutting is not easy to clean in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a laser cutting device for injection molded parts sprue marks, comprising: Workbench; A positioning seat is slidably disposed on the top of the worktable along the lateral direction. The positioning seat is used to position and place the injection molded part to be cut. A slag-blocking and flow-guiding mechanism is disposed above the positioning seat; the slag-blocking and flow-guiding assembly includes two slag-blocking plates, which are arranged opposite each other to block molten slag and waste material when the injection molded part to be cut is being cut. The material handling mechanism is located on one side of the workbench. The material handling mechanism includes a movable crossbeam that can move vertically along the workbench. A mechanical gripper is provided on one side of the movable crossbeam to transfer the injection molded part to be cut placed on the positioning seat to the top of the slag-separating and guiding mechanism for cutting. The laser cutting arm is positioned on one side of the worktable relative to the slag-blocking and flow-guiding mechanism.

[0007] Furthermore, the slag-separating plate is arranged in an inclined state; Each of the slag-separating plates has a side plate on the side that is far apart from each other; A protective plate is provided at the upward-sloping end of the slag-separating plate; A purge pipe is provided on one side of the baffle plate. The air outlet direction of the purge pipe is set along the inclined direction of the slag-blocking plate. The air inlet end of the purge pipe is connected to an external air supply device through a flexible pipe.

[0008] Furthermore, a collection box is provided on one side of the workbench; A guide pipe is fixedly installed at the top of the collection box, and the guide pipe is located close to the slag-separating plate. The feed pipe has an inlet on the side facing the slag-sparing plate.

[0009] Furthermore, a mounting plate is connected to one side of the slag-separating plate, and both mounting plates are rotatably mounted relative to the worktable; When the moving crossbeam moves, it can drive the mounting plate to rotate, thereby causing the slag-straining plate to rotate.

[0010] Furthermore, a support column is provided on one side of the workbench, and the movable crossbeam is slidably mounted on one side of the support column via a sliding sleeve; A drive plate is connected to one side of the sliding sleeve, and a drive wheel is connected to the outer side of the mounting plate. When the sliding sleeve moves, the drive plate and the drive wheel drive the mounting plate to rotate.

[0011] Furthermore, an attitude holding block is provided on one side of the drive wheel; When the drive plate detaches from the drive wheel, the attitude holding block is located at the bottom of the drive wheel, and at this time the two slag-blocking plates move away from each other on opposite sides.

[0012] Furthermore, the material handling mechanism also includes a first movable rod slidably disposed on one side of the movable crossbeam, and there are two first movable rods; The two first moving rods are connected to the output end of the same first reciprocating push rod, so that the first moving rods can move longitudinally along the worktable; Both of the first moving rods are connected to mechanical grippers on the side facing the laser cutting arm; The positioning seat is configured as a dual-station unit with two mechanical grippers.

[0013] Furthermore, a transfer mechanism for transferring the cut injection molded part is provided on one side of the movable crossbeam; The top of the workbench is provided with two positioning seats, which are respectively configured as a feeding group and a receiving group; When the positioning seat moves from the top of the workbench to the bottom of the feeding group of the material handling mechanism, the receiving group is located at the bottom of the transfer mechanism.

[0014] Furthermore, a guide plate is provided on one side of the workbench; The transfer mechanism includes: A rotating arm is rotatably mounted on one side of the movable crossbeam; The second moving rod slides through the rotating arm. One end of the second moving rod is connected to a mechanical gripper. When the rotating arm is driven to rotate to the receiving group, the second moving rod drives the mechanical gripper to clamp the cut injection molded part on the positioning seat.

[0015] Furthermore, a transverse sliding hole is provided at the top of the worktable, and a movable column that moves along the transverse sliding hole is provided at the bottom of the worktable, and the movable column is connected to the positioning seat. A vertical sliding hole is provided on the inner side of the movable column; A swing arm is rotatably mounted at the bottom of the workbench. One end of the swing arm is connected to a drive pin, which is slidably disposed in the vertical sliding hole. The other end of the swing arm is connected to a transmission wheel. A transmission rod is connected to the bottom end of the movable crossbeam, and a transmission plate is embedded on one side of the transmission rod. When the movable crossbeam moves, it drives the transmission wheel to rotate through the transmission plate.

[0016] The technical solution provided by this invention has the following advantages compared with the prior art: This invention features a slag-separating and guiding mechanism and a material handling mechanism that work together. When the material handling mechanism begins to move downwards, it simultaneously drives the two slag-separating plates in the slag-separating and guiding mechanism to rotate downwards, thus eliminating the interference of the slag-separating plates on the material handling mechanism and ensuring that the material handling mechanism can smoothly pick up the injection molded part to be cut. When the material handling mechanism moves the injection molded part to be cut upwards to a certain height, it triggers the closing action of the two slag-separating plates, so that the two slag-separating plates are located below the injection molded part to be cut, forming an isolation structure to prevent cutting waste from falling directly onto the processing equipment and accumulating. Furthermore, the tilted state of the slag-separating plates facilitates centralized collection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of one side of an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of another side of an embodiment of the present invention; Figure 3 This is a frontal structural schematic diagram of an embodiment of the present invention; Figure 4 This is an exploded structural diagram of the slag-blocking and flow-guiding mechanism according to an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the material handling mechanism according to an embodiment of the present invention; Figure 6 This is an exploded structural diagram of the material handling mechanism according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the external structure of the workbench in an embodiment of the present invention; Figure 8 for Figure 7 Enlarged structural diagram at point A; Figure 9 This is a schematic diagram of the transfer mechanism according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the internal structure of the workbench in an embodiment of the present invention.

[0019] The labels in the diagram represent: 100, the injection molded part to be cut; 1. Workbench; 11. Support column; 12. Moving plate; 13. Mounting platform; 14. Horizontal sliding hole; 15. Slide table; 16. Moving column; 17. Vertical sliding hole; 18. Drive pin; 19. Swing arm; 110. First rotating seat; 111. Transmission wheel; 112. Horizontal slide rail; 113. Slide seat; 114. Guide rail; 115. Guide plate; 116. First positioning block; 117. Fixing block; 118. Inclined block; 119. Vertical slide rail; 2. Positioning seat; 21. Feeding assembly; 22. Receiving assembly; 3. Slag-separating and flow-guiding mechanism; 31. Slag-separating plate; 32. Side plate; 33. Baffle plate; 34. Mounting plate; 35. Second rotating seat; 36. Drive wheel; 37. Attitude holding block; 38. Purge pipe; 4. Material handling mechanism; 41. Moving crossbeam; 42. Sliding sleeve; 43. First moving rod; 44. Drive plate; 45. First push plate; 46. Fixed plate; 47. Fixed frame; 48. First reciprocating push rod; 49. Sealing plate; 410. Drive force component; 411. Fixed beam; 412. Second positioning block; 413. Transmission rod; 4131. Transmission plate; 414. Third positioning block; 415. Support; 5. Laser cutting arm; 51. Robotic arm support; 6. Collection box; 61. Feed guide pipe; 62. Feed inlet; 63. Collection drawer; 7. Angle adjustment mechanism; 71. Adjusting wheel; 72. Adjusting plate; 73. Lifting plate; 74. Second reciprocating push rod; 8. Transfer mechanism; 81. Rotating arm; 82. Driving power component; 83. Connecting plate; 84. Third reciprocating push rod; 85. Second push plate; 86. Second moving rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments.

[0022] Please see Figures 1-10 The present invention provides a technical solution: Laser cutting equipment for injection molding sprues, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a worktable 1, a positioning seat 2, a slag-separating and flow-guiding mechanism 3, a material handling mechanism 4, and a laser cutting arm 5. A vertically arranged support column 11 is fixedly installed on the outside of the worktable 1. The positioning seat 2 is located on the top of the worktable 1 and is adapted to the injection molded part 100 to be cut, and is used to position and place the injection molded part 100 to be cut. The slag-separating and flow-guiding mechanism 3 is located above the positioning seat 2 and is used to isolate and clean the metal sprue waste under cutting. The material handling mechanism 4 is slidably arranged on the outside of the support column 11 and is used to transfer the injection molded part 100 to be cut on the top of the positioning seat 2 to the top of the slag-separating and flow-guiding mechanism 3. The laser cutting arm 5 is set on the outside of the worktable 1 through a mechanical arm bracket 51 and is used to cut the injection molded part 100 to be cut above the slag-separating and flow-guiding mechanism 3.

[0023] The slag separation and flow guiding mechanism 3 includes two slag separation plates 31. One side of the two slag separation plates 31 is inclined downward, and the sides of the two slag separation plates 31 that are close to each other can fit together. When the material picking and discharging mechanism 4 moves downward, it triggers the opening action of the two slag separation plates 31. When the material picking and discharging mechanism 4 moves upward to a certain height, it triggers the closing action of the two slag separation plates 31.

[0024] In the initial state, the material handling mechanism 4 is located above the slag-separating plate 31, with the two slag-separating plates 31 close to each other on their adjacent sides. When cutting the metal sprue of the injection molded part 100 to be cut, the injection molded part 100 to be cut is first placed on the top of the positioning seat 2. Since the structure of the positioning seat 2 and the injection molded part 100 to be cut are compatible, it is convenient to position the injection molded part 100 to be cut. The placement can be done by a robotic arm or manually. Then, the material handling mechanism 4 is driven to move downward along the support column 11, so that the material handling mechanism 4 can clamp the injection molded part 100 to be cut that is positioned on the top of the positioning seat 2. The positioning function of the positioning seat 2 ensures that each injection molded part 100 to be cut maintains a consistent position after being clamped and moved, ensuring the cutting accuracy.

[0025] In the above scheme, when the material handling mechanism 4 starts to move downward, it will synchronously drive the two slag-separating plates 31 in the slag-separating and guiding mechanism 3 to rotate downward on the side that is close to each other, so that the slag-separating plates 31 can eliminate the interference of the material handling mechanism 4 to move, and ensure that the material handling mechanism 4 can smoothly clamp the injection molded part 100 to be cut; when the material handling mechanism 4 drives the injection molded part 100 to be cut to move upward to a certain height, it will start to drive the two slag-separating plates 31 to rotate in the opposite direction, and the side that is close to each other will be in contact again, so that the two slag-separating plates 31 are located below the injection molded part 100 to be cut to form an isolation structure, preventing the molten slag and splashes formed during the cutting process from adhering to the positioning seat 2 and affecting the positioning accuracy, and also preventing the cutting waste from falling directly onto the processing equipment and accumulating, and the inclined setting of the slag-separating plates 31 makes it easy to collect the cutting waste.

[0026] In a specific example, such as Figure 1 and Figure 4 As shown, there are two support columns 11. Side plates 32 are fixedly installed on the side of the two slag-separating plates 31 that are far apart from each other. A baffle plate 33 is fixedly installed on the upward inclined end of the slag-separating plates 31. Mounting plates 34 are detachably installed on the outer side of the baffle plates 33. The two mounting plates 34 are rotatably installed on the outer side of the two support columns 11 through the second rotating seat 35. The mounting plates 34 can rotate by a predetermined angle driven by the material handling mechanism 4.

[0027] When the material handling mechanism 4 drives the slag-separating plate 31 to rotate, the material handling mechanism 4 first drives the mounting plate 34 to rotate around the axis of the second rotating seat 35, thereby causing the slag-separating plate 31 to rotate synchronously around the second rotating seat 35 as the axis. The sides of the two slag-separating plates 31 that were close to each other move away from each other, and the isolation structure that was originally located below the material handling mechanism 4 is released, making room for the material handling mechanism 4 to clamp the injection molded part 100 to be cut downwards. As the mounting plate 34 continues to rotate, the tilt angle of the slag-separating plate 31 gradually increases until it completely avoids the clamping working path of the material handling mechanism 4, ensuring that the material handling mechanism 4 can descend to the top of the positioning seat 2 without obstruction to accurately clamp the injection molded part 100 to be cut.

[0028] The waste at the top of the baffle plate 31 mainly consists of two types: one is the metal sprue waste cut off during cutting, and the other is the molten slag from the cutting process; to ensure the cleaning effect of the baffle and guide mechanism 3 on the cutting waste, it is again as follows... Figure 4 As shown, each of the protective upright plates 33 is fixedly equipped with a purge pipe 38 on the side away from the mounting plate 34. The air outlet direction of the purge pipe 38 is set along the inclined direction of the slag-separating plate 31. The air inlet end of the purge pipe 38 is connected to the external air supply equipment through a flexible pipe.

[0029] During use, the purge pipe 38 blows the waste along the inclined direction of the slag baffle plate 31, making it easier for the waste to be concentrated at the bottom of the slag baffle plate 31 for centralized collection and processing. Since the solid waste and molten slag are relatively large, the airflow can be controlled to move them along the slag baffle plate 31. Because the slag baffle plate 31 is detachably connected to one side of the mounting plate 34, the molten slag adhering to the top of the slag baffle plate 31, which is difficult to blow away, can be resolved by periodically replacing the slag baffle plate 31.

[0030] like Figure 1 and Figure 2 As shown, in one example of this application, the injection molding part sprue laser cutting device also includes a collection box 6 fixedly installed on the outside of the workbench 1. A guide pipe 61 is fixedly installed on the top of the collection box 6. The guide pipe 61 is vertically installed on the side near the slag-separating plate 31, and the guide pipe 61 has a feed inlet 62 corresponding to the slag-separating plate 31. A collection drawer 63 is slidably installed on one side of the collection box 6.

[0031] When the laser cutting arm 5 cuts the injection molded part 100 above the slag-blocking and guiding mechanism 3, some of the waste material will fall downwards due to the impact force and gravity generated by the cutting, while some may remain on the surface of the slag-blocking plate 31 or accumulate in the gap between the slag-blocking plate 31 and the guide tube 61 due to electrostatic adsorption or airflow disturbance during the cutting process.

[0032] At this time, the external air supply equipment delivers compressed air to the purge pipe 38 through a flexible pipe. The air outlet of the purge pipe 38 sprays air downwards at an angle. The airflow flows downwards along the inclined surface of the slag-separating plate 31, blowing the waste accumulated at the bottom of the slag-separating plate 31 or near the feed inlet 62 away from the clamping working area of ​​the material handling mechanism 4. This prevents the waste from accumulating around the active area of ​​the slag-separating and guiding mechanism 3, thus ensuring that the slag-separating and guiding mechanism 3 can maintain good working condition when cleaning the next injection molded part 100 to be cut. At the same time, the collection drawer 63 can slide on one side of the collection box 6. When it is necessary to clean or maintain the inside of the collection box 6, the collection drawer 63 can be slid to remove the waste, making it convenient for operators to operate and further ensuring the stable operation of the positioning seat 2 as a whole and the continuous cleaning capability of the waste.

[0033] To achieve the driving function of the material handling mechanism 4 on the slag-separating plate 31, and to control the opening angle of the slag-separating plate 31, such as... Figure 1 and Figure 4 As shown, the material handling mechanism 4 includes a movable crossbeam 41. Both ends of the movable crossbeam 41 are slidably connected to the support column 11 through a sliding sleeve 42. A drive plate 44 is fixedly installed on the outer side of the sliding sleeve 42. The drive plate 44 is a toothed plate. A drive wheel 36 is fixedly installed on the outer side of the mounting plate 34 coaxially with the rotating end. The drive wheel 36 is a gear. The drive wheel 36 is meshed on the outer side of the drive plate 44. An attitude holding block 37 is fixedly installed on the outer side of the drive wheel 36 off-center from the axis.

[0034] When the moving beam 41 is driven downward by an external force, the moving beam 41 drives the sliding sleeve 42 to slide along the support column 11, so that the sliding sleeve 42 drives the drive plate 44 to move outside the drive wheel 36, thereby driving the drive wheel 36 to start rotating, so that the drive wheel 36 drives the mounting plate 34 to rotate.

[0035] After the drive plate 44 disengages from the outside of the drive wheel 36, the attitude holding block 37 is located at the bottom of the drive wheel 36 in this state. The attitude holding block 37 is a block with a large mass. Under the action of the gravity of the attitude holding block 37, the drive wheel 36 maintains the angle after rotation. Since the drive plate 44 moves downward a large distance, the attitude holding block 37 can prevent the slag-blocking plate 31 from rotating too much. On the other hand, it maintains the angle after the drive wheel 36 rotates, so that when the drive plate 44 moves upward, it can mesh with the drive wheel 36 at the same angle. This ensures that after the drive wheel 36 reverses the predetermined angle, it can drive the two slag-blocking plates 31 to return to the closed state.

[0036] In a specific example, to implement the gripping function of the material handling mechanism 4 for the injection molded part 100 to be cut, such as... Figure 5 and Figure 6As shown, the material handling mechanism 4 also includes two first moving rods 43 that are slidably disposed inside the moving crossbeam 41. Each of the first moving rods 43 has a mechanical gripper fixedly disposed at one end near the laser cutting arm 5, which is used to grip the injection molded part 100 to be cut on the top of the positioning seat 2. The first moving rods 43 are driven by external force and can slide along the longitudinal direction of the worktable. The top of the positioning seat 2 is configured as a dual station corresponding to the two mechanical grippers, which is used to place two injection molded parts 100 to be cut at the same time.

[0037] Specifically, again as Figure 6 As shown, a first push plate 45 is rotatably mounted on the other end of the first moving rod 43. The first push plate 45 is fixedly mounted on the driving end of the first reciprocating push rod 48, and the first reciprocating push rod 48 is fixedly mounted on the outside of the moving crossbeam 41.

[0038] After the injection molded part 100 to be cut is positioned on the top of the positioning seat 2, the mechanical gripper at the end of the first moving rod 43 moves down synchronously by the downward movement of the moving crossbeam 41. When the mechanical gripper moves to the designated position outside the injection molded part 100 to be cut, the first reciprocating push rod 48 drives the first push plate 45 to drive the first moving rod 43 to slide longitudinally along the worktable, so that the two mechanical grippers simultaneously approach the two injection molded parts 100 to be cut on the dual station and clamp them on the outside of the injection molded parts 100 to be cut. Then, the moving crossbeam 41 is driven to move upward, so that the injection molded part 100 to be cut can be smoothly lifted from the dual station at the top of the positioning seat 2, so as to cooperate with the laser cutting arm 5 for laser cutting operation. This dual station design, combined with the synchronous movement of the mechanical grippers, effectively improves the clamping efficiency and stability of the injection molded part 100 to be cut, and ensures that the injection molded part 100 to be cut will not shift position during the cutting process.

[0039] In some examples, such as Figure 5 and Figure 6 As shown, the aforementioned injection molding part sprue cutting device also includes an angle adjustment mechanism 7 for driving the first moving rod 43 to rotate. The angle adjustment mechanism 7 includes an adjustment wheel 71 disposed on the outside of the first moving rod 43. The adjustment wheel 71 is a gear. An adjustment plate 72 is meshed on the side of the adjustment wheel 71 that is close to each other. The adjustment plate 72 is a toothed plate. The adjustment plate 72 is driven by external force to move synchronously up and down on the outside of the moving beam 41. Specifically, a lifting plate 73 is fixedly disposed on the top of the adjustment plate 72. The lifting plate 73 is fixedly disposed on the driving end of the second reciprocating push rod 74. The second reciprocating push rod 74 is fixedly disposed on the inner side of the fixed plate 46. The fixed plate 46 is fixedly disposed on the top of the moving beam 41. The adjustment wheel 71 is rotatably disposed on the inner side of the moving beam 41.

[0040] When the mechanical gripper at the end of the first moving rod 43 grasps the injection molded part 100 to be cut and lifts it above the slag-blocking and guiding mechanism 3, it cuts the metal sprue in conjunction with the laser cutting arm 5. During the cutting process, the second reciprocating push rod 74 pushes the lifting plate 73 to move up and down, causing the lifting plate 73 to simultaneously drive the adjusting plates 72 at both ends to slide vertically on the outside of the moving beam 41, thereby simultaneously driving the two adjusting wheels 71 to rotate, causing the adjusting wheels 71 to drive the first moving rod 43 to rotate synchronously, thereby adjusting the angle of the injection molded part 100 to be cut. In actual work, the positional relationship between the adjusting plate 72 and the adjusting wheel 71 can be set according to the placement posture of the injection molded part 100 on the positioning seat 2 and the specific cutting requirements. For example, in some examples, the adjusting wheel 17 is located on the same side of the corresponding adjusting plate 72. In other examples, the adjusting wheel 17 can also be positioned as follows: Figure 6 The figures shown are located on different sides of the corresponding adjustment plate 72.

[0041] Based on the above embodiments, such as Figure 1 , Figure 2 and Figure 7 As shown, to facilitate the transfer of the cut injection molded part 100, a movable plate 12 is slidably provided on the top of the worktable 1. In some examples, a transverse slide rail 112 is symmetrically fixed on the top of the worktable 1, and a slide block 113 is slidably provided on the outer side of the transverse slide rail 112. The slide block 113 is fixedly provided on the bottom of the movable plate 12. Two mounting platforms 13 for assembling positioning seats 2 are provided on the top of the movable plate 12. The two positioning seats 2 are respectively set as the feeding group 21 and the receiving group 22. A transfer mechanism 8 is provided on the outer side of the movable beam 41 for transferring the cut injection molded part. During the lifting and lowering process of the movable beam 41, the movable plate 12 is driven to slide on the top of the worktable 1, which can drive the injection molded part 100 on the feeding group 21 to be located directly below the picking and placing mechanism 4, and can drive the cut injection molded part on the receiving group 22 to be located directly below the transfer mechanism 8. A guide plate 115 is fixedly provided on the outer side of the worktable 1, and the guide plate 115 is located on the side of the transfer mechanism 8 away from the picking and placing mechanism 4.

[0042] In the above technical solutions, such as Figure 1 and Figure 9 As shown, the transfer mechanism 8 includes a rotating arm 81, which reciprocates under the drive of a driving power component 82. The driving power component 82 is fixedly mounted on the outside of the sliding sleeve 42 via a support 415. A connecting plate 83 is fixedly mounted on the top of the rotating arm 81. A third reciprocating push rod 84 is fixedly mounted on one end of the connecting plate 83. A second push plate 85 is fixedly mounted on the driving end of the third reciprocating push rod 84. A second moving rod 86 is fixedly mounted on both ends of the second push plate 85. The second moving rods 86 are slidably mounted on the inside of the rotating arm 81. A mechanical gripper is mounted on the other end of each second moving rod 86 for gripping the cut injection molded parts on the receiving assembly 22.

[0043] In the above technical solution, the function of the driving power component 82 is to drive the rotating arm 81 to rotate. In actual operation, a power component with rotation output function, such as a motor, is selected. The first reciprocating push rod 48, the second reciprocating push rod 74, and the third reciprocating push rod 84 are components with linear output function. In actual operation, pneumatic push rods, hydraulic push rods, or electric push rods can be selected according to specific needs.

[0044] When the injection molded part 100 is positioned and loaded, the loading group 21 on the top of the moving plate 12 is located on the side directly below the picking and placing mechanism 4, and the receiving group 22 on the top of the moving plate 12 is located directly below the picking and placing mechanism 4. After the injection molded part 100 to be cut is positioned on top of the positioning seat 2 at the feeding group 21, the picking and placing mechanism 4 moves, causing the picking and placing mechanism 4 to drive the moving plate 12 to move laterally a certain distance. The moving plate 12 drives the positioning seat 2 on the feeding group 21 and the injection molded part 100 to be cut on its top to be located directly below the picking and placing mechanism 4, and at the same time drives the positioning seat 2 on the receiving group 22 to be located directly below the transfer mechanism 8. After the injection molded part 100 to be cut is cut, the pick-and-place mechanism 4 moves down again, causing the moving plate 12 to move in the opposite direction. At this time, the positioning seat 2 of the receiving group 22 is located below the pick-and-place mechanism 4. The cut injection molded part can be placed on the top of the positioning seat 2 on the receiving group 22 by the pick-and-place mechanism 4. At the same time, the new injection molded part 100 to be cut is placed above the positioning seat 2 of the loading group 21 by manual or robotic arm. After moving again, the moving plate 12 can be driven to move the injection molded part 100 to be cut that was just placed on the loading group 21 to be located directly below the pick-and-place mechanism 4, waiting for the next gripping action. The cut injection molded part is then moved to the transfer mechanism 8 for transfer. In this way, the lifting and lowering movement of the pick-and-place mechanism 4 can drive the moving plate 12 to slide on the top of the worktable 1.

[0045] To ensure the precision of the fit between the injection molded part 100 and the mechanical gripper (i.e., consistency of gripping position), and the operational coordination between the material handling mechanism 4 and the moving plate 12, such as... Figure 10 As shown, a horizontal sliding hole 14 is provided on the top of the workbench 1. A slide table 15 is slidably arranged inside the horizontal sliding hole 14 via a bottom guide rail 114. The slide table 15 is fixedly arranged at the bottom of the movable plate 12. A movable column 16 is fixedly arranged at the bottom of the slide table 15. A vertical sliding hole 17 is vertically provided inside the movable column 16. A drive pin 18 is slidably arranged inside the vertical sliding hole 17. The drive pin 18 is fixedly arranged at one end of the swing arm 19. The other end of the swing arm 19 is rotatably arranged inside the workbench 1 via a first rotating seat 110. A transmission wheel 111 is rotatably arranged on the outside of the workbench 1. The transmission wheel 111 is a gear and is coaxially fixedly arranged with the swing arm 19.

[0046] like Figure 7 and Figure 8 As shown, a fixing frame 47 for fixing the first reciprocating push rod 48 is fixedly installed on the outer side of the moving crossbeam 41. A sealing plate 49 is fixedly installed on the outer side of the fixing frame 47. A transmission rod 413 is fixedly installed at the bottom of the sealing plate 49. A transmission plate 4131 is slidably installed on the inner side of the transmission rod 413. The transmission plate 4131 is a toothed plate. The transmission plate 4131 meshes with the transmission wheel 111. The transmission plate 4131 is slidably installed on the inner side of the transmission rod 413 by electromagnetic adsorption. The transmission rod 413 is slidably installed on the outer side of the vertical slide rail 119. The vertical slide rail 119 is fixedly installed on the outer side of the worktable 1.

[0047] In a specific example, a driving force component 410 is fixedly installed on the top of the sealing plate 49. The driving force component 410 is fixedly installed on the top of the fixed beam 411, and the fixed beam 411 is fixedly installed on the top of the support column 11. The function of the driving force component 410 is to drive the sealing plate 49 and the moving crossbeam 41 to move vertically. In actual operation, a power component with linear output function, such as a pneumatic push rod, an electric push rod, a hydraulic push rod, or a linear electric rail, can be selected. No limitation is made here.

[0048] A second positioning block 412 is fixedly installed at the bottom of the movable crossbeam 41, and a first positioning block 116 is fixedly installed at the top of the movable plate 12 corresponding to the second positioning block 412; a third positioning block 414 is fixedly installed on the side of the transmission rod 413 near the movable plate 12, and a fixing block 117 is fixedly installed at the top of the movable plate 12. The side of the fixing block 117 near the third positioning block 414 extends outward, and an inclined block 118 is fixedly installed on the side away from the first positioning block 116 corresponding to the third positioning block 414.

[0049] In the above technical solutions, one side of the first positioning block 116 is a sloping structure, the side of the second positioning block 412 corresponding to the sloping structure of the first positioning block 116 is also a sloping structure, and the side of the third positioning block 414 corresponding to the sloping block 118 is a sloping structure.

[0050] When the injection molded part 100 to be cut is placed on the feeding group 21, the receiving group 22 is located below the picking and placing mechanism 4. Since the moving crossbeam 41 in the picking and placing mechanism 4 is at the top in the initial state, the moving crossbeam 41 drives the third positioning block 414 on the outside of the transmission rod 413 to cooperate with the inclined block 118 on one side of the fixed block 117. The two use the inclined structure to position the moving plate 12, so that the injection molded part 100 to be cut is always in the designated position when feeding, and the moving plate 12 drives the positioning seat 2 on the receiving group 22 to be vertically positioned with the picking and placing mechanism 4 directly above, laying the foundation for subsequent receiving work.

[0051] When the moving beam 41 moves downward, it drives the transmission rod 413 to slide vertically along the vertical slide rail 119. At this time, the transmission plate 4131 on the inner side of the transmission rod 413 is attracted and stored on the inner side of the transmission rod 413 by electromagnetic drive. As a result, the transmission wheel 111 cannot be driven to rotate when the moving beam 41 descends. When the transmission plate 4131 passes the transmission wheel 111, it pops out. As the transmission rod 413 rises, it can drive the transmission wheel 111 to rotate at a certain angle, so that the transmission wheel 111 drives the drive pin 18 at the end of the swing arm 19 to slide inside the vertical slide hole 17, driving the moving column 16 to move to the other end of the horizontal slide hole 14, thereby moving the injection molded part 100 to be cut on the loading group 21 to the direct below the loading and unloading mechanism 4.

[0052] As the moving beam 41 continues to move downward, the second positioning block 412 at the bottom of the moving beam 41 cooperates with the first positioning block 116 to reposition the moving plate 12, so that the moving plate 12 drives the injection molded part 100 to be cut on the feeding group 21 to be positioned and cooperated with the mechanical gripper in the picking and unloading mechanism 4; to ensure that the mechanical gripper is always in a fixed clamping position when clamping the injection molded part 100 to be cut, reducing the deviation caused by subsequent cutting.

[0053] In the above scheme, the movement of the transmission rod 413 is driven by the lifting and lowering of the moving crossbeam 41. The movement of the transmission rod 413 is based on the drive of the transmission plate 4131 on the transmission wheel 111, which in turn drives the moving plate 12. If the transmission plate 4131 drives the transmission wheel 111 during the rising of the moving crossbeam 41, it will drive the moving plate 12 along... Figure 1 The indicated state moves to the right; if the transmission plate 4131 drives the transmission wheel 111 during the descent of the moving beam 41, it will drive the moving plate 12 along... Figure 1 The state shown moves to the left; the transmission plate 4131 controls whether to drive the transmission wheel 111 according to the actual movement requirements of the moving plate 12.

[0054] In practical work, a separate linear drive mechanism, such as a cylinder, can also be used to drive the movement of the moving plate 12. When using a separate linear drive, an additional PLC control system is required to control the timing of the movement of the moving plate 12 and the material handling mechanism 4. The soft synchronization of the electrical control system requires high control accuracy, and problems such as signal delay, asynchronous response, and motion phase deviation are likely to occur during actual use. In the above structure of this application, the movement of the moving plate 12 follows the movement of the moving beam 41 through a mechanical structure, without relying on the PLC control system. Even if the electromagnetic control of the transmission plate 4131 fails, the movement of the moving plate 12 will always follow the lifting and lowering of the moving beam 41. This can ensure that the timing of the movement is not disordered from the mechanical structure, avoid the risk of impact caused by malfunction, and improve the safety of the device.

[0055] In summary, the working principle of the laser cutting device for injection molded parts described in the embodiments of this application is as follows: Material loading and positioning stage: In the initial state, the driving force component 410 drives the moving crossbeam 41 to the top, and the positioning seat 2 of the loading group 21 is located on one side below the material handling mechanism 4 (e.g., Figure 1 (as shown in the image). At this time, the moving beam 41 drives the third positioning block 414 on the outside of the transmission rod 413 to cooperate with the fixing block 117 on the top of the moving plate 12. The inclined structure of the third positioning block 414 and the inclined block 118 is used to position the moving plate 12, so that the positioning seat 2 on the feeding group 21 is always in the designated position, so as to cooperate with the robotic arm to automatically place the injection molded part 100 to be cut on the top of the positioning seat 2 of the feeding group 21.

[0056] Clamping and transferring stage: The moving beam 41 is driven to move downward by the driving force component 410. The moving beam 41 drives the transmission rod 413 to move synchronously. At this time, the transmission plate 4131 is stored inside the transmission rod 413 under the electromagnetic drive. Therefore, the position of the moving plate 12 remains unchanged when the moving beam 41 descends. Then the moving beam 41 rises a certain distance, and the electromagnetic drive transmission plate 4131 pops out of the inner side of the transmission rod 413, so that the transmission plate 4131 meshes with the transmission wheel 111, thereby driving the swing arm 19 to rotate, so that the swing arm 19 drives the moving plate 12 to move laterally a certain distance, thereby driving the positioning seat 2 on the loading group 21 and the injection molded part 100 to be cut on its top to move to the bottom of the picking and unloading mechanism 4. The moving crossbeam 41 moves down again. During the downward movement, the transmission plate 4131 does not drive the transmission wheel 111 to rotate, thus maintaining the position of the positioning seat 2. The second positioning block 412 at the bottom of the moving crossbeam 41 docks with the first positioning block 116. The two use the inclined positioning structure to position the positioning seat 2 on the feeding group 21, thereby reducing the relative position error between the injection molded part 100 to be cut and the mechanical gripper located directly below the material handling mechanism 4. The first reciprocating push rod 48 drives the first moving rod 43 to move the mechanical gripper closer to the outside of the injection molded part 100 to be cut for gripping. After clamping the injection molded part 100 to be cut, it is lifted to the cutting area by the moving crossbeam 41. During the lifting process, the two slag-blocking plates 31 are simultaneously triggered to close by rotation. At this time, the laser cutting head of the laser cutting arm 5 is positioned above the slag-blocking and guiding mechanism 3 and is ready to be used. During this process, the positioning seat 2 of the feeding group 21 moves in the reverse direction to reset, so that the positioning seat 2 of the receiving group 22 is kept directly below the picking and unloading mechanism 4. Since the injection molded part to be cut on the positioning seat 2 of the feeding group 21 has been transferred to the cutting area, a new injection molded part 100 to be cut can be placed on the positioning seat 2 of the feeding group 21 to wait for the next round of gripping.

[0057] In the specific design, when the moving crossbeam 41 descends, the moving crossbeam 41 drives the sliding sleeve 42 to slide along the support column 11, causing the sliding sleeve 42 to drive the rotating plate 44 to move outside the rotating wheel 36, thereby driving the rotating wheel 36 to start rotating, and causing the rotating wheel 36 to drive the mounting plate 34 to rotate; when the rotating plate 44 is separated from the outside of the rotating wheel 36, under the action of the gravity of the attitude holding block 37, the rotating wheel 36 maintains the angle after rotation; since the rotating plate 44 moves downward a large distance, by setting the attitude holding block 37, the slag-blocking plate 31 can be prevented from rotating excessively by a large angle, and on the other hand, the angle after rotation of the rotating wheel 36 is maintained, so that when the rotating plate 44 moves upward, it can mesh with the rotating wheel 36 at the same angle.

[0058] Laser cutting stage: The laser cutting arm 5 cuts the metal gate of the injection molded part through the laser cutting head at the execution end; the metal waste generated by cutting slides into the inside of the feed port 62 through the inclined slag baffle 31. At the same time, the external air supply equipment is started to input compressed gas into the blow pipe 38. The air outlet of the blow pipe 38 sprays air downward at an angle. On the one hand, it can directly blow off the waste attached to the surface of the slag baffle 31. On the other hand, the air flow will flow downward along the inclined surface of the slag baffle 31, blowing the waste accumulated at the bottom of the slag baffle 31 or near the feed port 62 away from the clamping working area of ​​the material handling mechanism 4, preventing the waste from accumulating around the active area of ​​the slag baffle guide mechanism 3, thereby ensuring that the slag baffle guide mechanism 3 can maintain a good working condition when the next injection molded part 100 to be cut is isolated and cleaned in the future. During the cutting process, the second reciprocating push rod 74 drives the adjustment plate 72 to rotate the rotating shaft adjustment wheel 71, so that the injection molded part 100 to be cut rotates around the axis of the first moving rod 43 at a certain angle. In conjunction with the multi-degree-of-freedom movement of the laser cutting head, multi-angle cutting of complex sprues is achieved. During the laser cutting stage, the positioning seat 2 of the receiving group 22 is kept below the material picking and unloading mechanism.

[0059] Material transfer stage: After cutting, the moving beam 41 descends, the position of the positioning seat 2 remains unchanged, and the finished product is placed on the top of the positioning seat 2 of the receiving group 22 by the mechanical gripper at the end of the first moving rod 43. When the positioning seat 2 of the loading group 21 is located directly below the material handling mechanism 4 again, it can drive the cut injection molded part on the receiving group 22 to be located directly below the transfer mechanism 8. When the moving beam 41 descends, it drives the transfer mechanism 8 to move synchronously to the designated position. The mechanical gripper at the end of the second moving rod 86 clamps the injection molded part 100 to be cut on the receiving group 22. After the moving beam 41 rises, the rotating arm 81 is driven to rotate by the drive power component 82, so that the mechanical gripper at the end of the second moving rod 86 rotates and releases above the guide plate 115, so as to transfer the cut injection molded part 100 to the next process.

[0060] The laser cutting device for injection molding gates described in this application has the following advantages over the prior art: By using the inclined plane structure positioning of the third positioning block 414 and the inclined block 118, the precise docking of the second positioning block 412 and the first positioning block 116, and the stable switching under the dual-station design, the relative position error between the injection molded part 100 to be cut and the mechanical gripper is reduced, providing a solid guarantee for the high precision of laser cutting and effectively avoiding cutting deviations and product scrap caused by inaccurate positioning.

[0061] From the automatic feeding of the robotic arm, the gripping and transfer driven by the moving crossbeam 41, the multi-angle cutting of the laser cutting head, to the automatic unloading and transfer of the finished product to the next process, the entire process requires little human intervention, realizing the fully automated operation of injection molding part gate cutting, and significantly improving production efficiency.

[0062] The metal scrap generated during cutting naturally slides down to the feed inlet 62 through the inclined slag baffle 31. At the same time, the external air supply equipment inputs compressed gas into the blow pipe 38. The high-speed airflow sprayed downwards at an angle can not only blow off the scrap attached to the surface of the slag baffle 31, but also blow the accumulated scrap away from the working area, effectively preventing scrap from accumulating around the moving parts and ensuring the continuous and stable working state of the equipment.

[0063] The second reciprocating push rod 74 drives the adjustment plate 72 to rotate the injection molded part 100 to be cut around the axis of the first moving rod 43. Combined with the multi-degree-of-freedom movement of the laser cutting head, it can easily achieve multi-angle and fast cutting of complex sprues, meeting the sprue processing needs of injection molded parts of different shapes.

[0064] The dual-station design allows the device to simultaneously pick up and cut two injection molded parts 100 to be cut without moving the laser cutting arm 5, which greatly shortens the production cycle and increases the product throughput per unit time.

[0065] The electromagnetic drive storage and ejection of the transmission plate 4131, the rotation of the drive wheel 36, and the gravity limiting of the attitude holding block 37 ensure the precise and orderly movement of each component during the clamping and transfer process. The linkage design of the sliding sleeve 42 driving the drive plate 44 to drive the drive wheel 36 to rotate realizes the automatic closing of the slag baffle plate 31 during the lifting process, reflecting the compactness and synergy of the overall structure of the device.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cutting device for injection molded parts sprue marks, characterized in that, include: Workbench; A positioning seat is slidably disposed on the top of the worktable along the lateral direction. The positioning seat is used to position and place the injection molded part to be cut. A slag-blocking and flow-guiding mechanism is disposed above the positioning seat; the slag-blocking and flow-guiding assembly includes two slag-blocking plates, which are arranged opposite each other to block molten slag and waste material when the injection molded part to be cut is being cut. The material handling mechanism is located on one side of the workbench. The material handling mechanism includes a movable crossbeam that can move vertically along the workbench. A mechanical gripper is provided on one side of the movable crossbeam to transfer the injection molded part to be cut placed on the positioning seat to the top of the slag-separating and guiding mechanism for cutting. The laser cutting arm is positioned on one side of the worktable relative to the slag-blocking and flow-guiding mechanism.

2. The laser cutting device for injection molded parts gates according to claim 1, characterized in that, The slag-separating plate is set at an angle. Each of the slag-separating plates has a side plate on the side that is far apart from each other; A protective plate is provided at the upward-sloping end of the slag-separating plate; A purge pipe is provided on one side of the baffle plate. The air outlet direction of the purge pipe is set along the inclined direction of the slag-blocking plate. The air inlet end of the purge pipe is connected to an external air supply device through a flexible pipe.

3. The laser cutting device for injection molded parts gates according to claim 2, characterized in that, A collection box is provided on one side of the workbench; A guide pipe is fixedly installed at the top of the collection box, and the guide pipe is located close to the slag-separating plate. The feed pipe has an inlet on the side facing the slag-sparing plate.

4. The laser cutting device for injection molded parts gates according to claim 1, characterized in that, One side of the slag-separating plate is connected to an mounting plate, and both mounting plates are rotatably mounted relative to the workbench. When the moving crossbeam moves, it can drive the mounting plate to rotate, thereby causing the slag-straining plate to rotate.

5. The laser cutting device for injection molded parts gates according to claim 4, characterized in that, A support column is provided on one side of the workbench, and the movable crossbeam is slidably mounted on one side of the support column via a sliding sleeve. A drive plate is connected to one side of the sliding sleeve, and a drive wheel is connected to the outer side of the mounting plate. When the sliding sleeve moves, the drive plate and the drive wheel drive the mounting plate to rotate.

6. The laser cutting device for injection molded parts gates according to claim 5, characterized in that, An attitude holding block is provided on one side of the drive wheel; When the drive plate detaches from the drive wheel, the attitude holding block is located at the bottom of the drive wheel, and at this time the two slag-blocking plates move away from each other on opposite sides.

7. The laser cutting device for injection molded parts gates according to claim 1, characterized in that, The material handling mechanism further includes a first movable rod slidably disposed on one side of the movable crossbeam, and there are two first movable rods; The two first moving rods are connected to the output end of the same first reciprocating push rod, so that the first moving rods can move longitudinally along the worktable; Both of the first moving rods are connected to mechanical grippers on the side facing the laser cutting arm; The positioning seat is configured as a dual-station unit with two mechanical grippers.

8. The laser cutting device for injection molded parts gates according to claim 1, characterized in that, One side of the movable crossbeam is provided with a transfer mechanism for transferring the cut injection molded part. The top of the workbench is provided with two positioning seats, which are respectively configured as a feeding group and a receiving group; When the positioning seat moves from the top of the workbench to the bottom of the feeding group of the material handling mechanism, the receiving group is located at the bottom of the transfer mechanism.

9. The laser cutting device for injection molded parts gates according to claim 8, characterized in that, A guide plate is provided on one side of the workbench; The transfer mechanism includes: A rotating arm is rotatably mounted on one side of the movable crossbeam; The second moving rod slides through the rotating arm. One end of the second moving rod is connected to a mechanical gripper. When the rotating arm is driven to rotate to the receiving group, the second moving rod drives the mechanical gripper to clamp the cut injection molded part on the positioning seat.

10. The laser cutting device for injection molded parts gates according to claim 1, characterized in that, The top of the workbench is provided with a transverse sliding hole, and the bottom of the workbench is provided with a movable column that moves along the transverse sliding hole. The movable column is connected to the positioning seat. A vertical sliding hole is provided on the inner side of the movable column; A swing arm is rotatably mounted at the bottom of the workbench. One end of the swing arm is connected to a drive pin, which is slidably disposed in the vertical sliding hole. The other end of the swing arm is connected to a transmission wheel. A transmission rod is connected to the bottom end of the movable crossbeam, and a transmission plate is embedded on one side of the transmission rod. When the movable crossbeam moves, it drives the transmission wheel to rotate through the transmission plate.

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