Material taking device of injection molding machine

Abstract

The invention relates to the technical field of injection molding, and discloses a material taking device of an injection molding machine, the material taking device comprises a sliding seat arranged on one side of an injection molding machine body, a material taking rod is slidably arranged on the sliding seat, a material taking disc is fixed at the end part of the material taking rod, and a suction cup for adsorbing and fixing an injection molding part is arranged on the material taking disc; a movable cavity is formed in the material taking disc, a first rotating seat and a second rotating seat are arranged on the inner side of the movable cavity, a first cutting knife is arranged on the inner side of the first rotating seat, a second cutting knife is arranged on the inner side of the second rotating seat, and a core rod is arranged in the material taking rod in a sliding mode; according to the technical scheme, when the injection molding part is taken through the suction cup, the second cutting knife moves towards the first cutting knife, redundant convex columns on the injection molding part can be cut off, and therefore the using effect of the injection molding part is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to a material taking device for an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making plastic products of various shapes from thermoplastics or thermosetting plastics using plastic molding molds.

[0003] After the wastebasket injection molded parts are produced and formed, it is necessary to first open the injection molding machine and remove the molded wastebasket injection molded parts from the injection molding machine to complete the material removal work of the wastebasket injection molded parts. The existing material removal devices generally remove the wastebasket injection molded parts directly after the wastebasket injection molded parts are formed, and no other processing is performed on the wastebasket injection molded parts. However, due to the influence of the injection channel during the injection molding process, columnar protrusions and burrs will appear at the end of the wastebasket injection molded parts, which are collectively referred to as convex columns below. The convex columns are redundant parts relative to the wastebasket injection molded parts. For the processing of the convex columns, they are generally cut manually with scissors. The above process is time-consuming and labor-intensive, and the cutting effect is poor. Summary of the Invention

[0004] The present invention provides a material picking device for an injection molding machine. When a suction cup sucks and picks up the injection molded part, a second cutting knife moves toward a first cutting knife, so that the second cutting knife and the first cutting knife cooperate to cut off the boss. This solves the problem mentioned in the above background technology that the boss is cut manually with scissors, which is a time-consuming and labor-intensive process and has a poor cutting effect.

[0005] The present invention provides the following technical solution: a material picking device of an injection molding machine, comprising a sliding seat arranged on one side of the injection molding machine body, a material picking rod slidably arranged on the sliding seat, a material picking tray fixed to the end of the material picking rod, a suction cup for adsorbing and fixing the injection molded part is provided on the material picking tray, an active cavity is opened inside the material picking tray, a first rotating seat and a second rotating seat are provided on the inner side of the active cavity, a first cutting knife is provided on the inner side of the first rotating seat, a second cutting knife is provided on the inner side of the second rotating seat, a core rod is slidably arranged inside the material picking rod, and the movement of the core rod drives the second cutting knife to move toward the first cutting knife to cut off the convex column on the injection molded part.

[0006] As an optional solution of the material taking device of the injection molding machine described in the present invention, a side seat is fixed on the sliding seat, a first sliding groove is provided on the side seat, the end of the core rod is slidably arranged in the first sliding groove, a first track groove is provided inside the first sliding groove, a sliding protrusion is fixed to the end of the core rod, and the sliding protrusion is slidably arranged in the first track groove, the first track groove includes a horizontal part, a first inclined part and a second inclined part which are connected in sequence, a first baffle is elastically provided at the connection between the horizontal part and the first inclined part, and a second baffle is elastically provided at the connection between the second inclined part and the horizontal part.

[0007] As an optional solution of the material picking device of the injection molding machine described in the present invention, a sliding cavity is opened inside the material picking rod for sliding the core rod, the end of the core rod is connected to a transmission rod through a limiting component, the end of the transmission rod is slidably connected to the outer surface of the second rotating seat, a rotating shaft is fixed on the first rotating seat, the rotating shaft is rotatably connected to the material picking tray, a gear is fixed at the end of the rotating shaft, a push rod is fixed on the surface of the core rod, the material picking rod and the material picking tray are elastically provided with a toothed plate meshing with the gear, a first engaging component is jointly provided between the first rotating seat and the second rotating seat, a guide rod is fixed to the inner side of the material picking tray, the guide rod passes through the second rotating seat and is slidably connected to the second rotating seat.

[0008] As an optional solution for the material picking device of the injection molding machine described in the present invention, the limiting component includes a card groove provided on the surface of the transmission rod, a card rod is slidably provided on the core rod, a convex plate is fixed on the surface of the card rod, a spring groove for the convex plate to slide is provided inside the core rod, a first spring is fixed between the convex plate and the inner wall of the spring groove, a release groove for the card rod to slide is provided on the inner wall of the sliding cavity, a receiving cavity for the transmission rod to slide is provided inside the core rod, and a second spring is fixed between the inner wall of the receiving cavity and the end of the transmission rod.

[0009] As an optional solution to the material picking device of the injection molding machine described in the present invention, the first locking assembly includes a first slot opened on the first rotating seat, a first plug block for inserting into the first slot is fixed on the surface of the second rotating seat, a limiting protrusion is fixed on the outer surface of the first plug block, and an inner wall of the first slot is provided with a spring for interfering with the limiting protrusion.

[0010] As an optional solution of the material picking device of the injection molding machine described in the present invention, the first locking assembly includes a second slot provided on the first rotating seat, a second plug block for inserting into the second slot is fixed on the surface of the second rotating seat, a groove is provided on the outer surface of the second plug block, a post is slidingly provided inside the second slot, a receiving groove is provided on one side of the second slot, and a third spring is fixed between the inside of the receiving groove and the post.

[0011] As an optional solution for the material picking device of the injection molding machine described in the present invention, the outer surfaces of the first rotating seat and the second rotating seat are both provided with semicircular ring grooves, and a positioning block is fixed to the end of the transmission rod. A roller is rotatably provided on the positioning block, and the roller is slidably provided in the semicircular ring groove, and a limiting groove for the sliding of the positioning block is provided on the inner wall of the semicircular ring groove.

[0012] As an optional solution for the material taking device of the injection molding machine described in the present invention, a sliding rod is slidably provided on the first rotating seat, one end of the sliding rod is fixed with a first mounting seat, the first cutting knife is fixedly provided on the first mounting seat, a positioning ring is fixed inside the movable cavity, a limiting ball is fixed on the other end of the sliding rod, a second track groove for the limiting ball to slide is provided inside the positioning ring, a telescopic rod is fixed on the inner wall of the second rotating seat, the end of the telescopic rod is fixed with a second mounting seat, the second cutting knife is fixedly provided on the second mounting seat, and a second clamping assembly is commonly provided between the first mounting seat and the second mounting seat.

[0013] As an optional solution for the material picking device of the injection molding machine described in the present invention, the second trajectory groove includes an arc portion and a wavy portion connected in sequence, the wavy portion includes an outward moving portion and an inward moving portion connected in sequence, the telescopic rod includes an inner rod and an outer rod, a slider is fixed to the end of the inner rod, and a third sliding groove is opened inside the outer rod for the slider to slide.

[0014] As an optional solution for the material picking device of the injection molding machine described in the present invention, a slide rail is fixed to the bottom of the injection molding machine body, the sliding seat is slidably arranged on the slide rail, a servo electric cylinder is fixed to the injection molding machine body, the output end of the servo electric cylinder is fixed to the surface of the sliding seat, a side plate is fixed to the top of the sliding seat, a reciprocating screw is rotatably arranged on the inner side of the side plate, a servo motor is fixed to the outer surface of the side plate, the output end of the servo motor is fixedly connected to one end of the reciprocating screw, a moving seat is threadedly connected to the circumference of the reciprocating screw, and the end of the material picking rod is fixed to the moving seat.

[0015] The present invention has the following beneficial effects: 1. In the material picking device of the injection molding machine, when the suction cup picks up the injection molded part, the material picking rod drives the core rod to slide inside the first slide groove, so that after the suction cup adsorbs the injection molded part, the core rod drives the sliding protrusion to slide inside the first track groove. When the sliding protrusion slides along the first inclined portion, the sliding protrusion drives the core rod to slide inside the slide cavity, so that the core rod drives the second rotating seat to move, and the movement of the second rotating seat drives the second cutting knife to move. The second cutting knife moves so that the second cutting knife approaches the direction of the first cutting knife. The cooperation of the second cutting knife and the first cutting knife is used to cut off the boss, so that it is convenient to complete the work of cutting off the redundant bosses on the injection molded part while taking the material from the injection molded part, which is beneficial to improve work efficiency and increase the quality of the injection molded part.

[0016] 2. In the material taking device of the injection molding machine, after the second cutting knife cooperates with the first cutting knife to cut off the convex column, the limiting component is released to allow the core rod to slide relative to the transmission rod. At this time, the core rod drives the tooth plate to move through the push rod, and the movement of the tooth plate causes the gear to rotate. The rotation of the gear drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the first rotating seat to rotate. Through the first engaging component, after the second rotating seat is engaged with the first rotating seat, the rotation of the first rotating seat drives the second rotating seat to rotate. The rotation of the first rotating seat and the second rotating seat drives the first cutting knife and the second cutting knife to rotate, so that after the first cutting knife and the second cutting knife cut the convex column, they can rotate and grind the cut position, thereby increasing the flatness of the bottom of the injection molded part and facilitating the subsequent use of the injection molded part.

[0017] 3. In the material taking device of the injection molding machine, when the first cutting knife and the second cutting knife rotate, the first mounting seat drives the sliding rod to move, so that the sliding rod drives the limiting ball to slide along the second track groove. When the limiting ball slides along the wave portion of the second track groove, the limiting rod can drive the sliding rod to reciprocate left and right. The left and right reciprocating motion of the sliding rod drives the first mounting seat to reciprocate left and right. Through the second clamping assembly provided, the clamping between the first mounting seat and the second mounting seat will not be released when the first mounting seat reciprocates left and right, so that the left and right reciprocating motion of the first mounting seat can drive the second mounting seat to reciprocate left and right, thereby making the first cutting knife and the second cutting knife reciprocate left and right, so that the first cutting knife and the second cutting knife can be shaken left and right while performing rotation and grinding, thereby further improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural diagrams of the present invention.

[0019] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 3 For the present invention Figure 2Schematic diagram of the structure of the feeding rod and feeding tray.

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0022] Figure 5 For the present invention Figure 3 Structural cross-section view of the middle feeding rod part.

[0023] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle.

[0024] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle.

[0025] Figure 8 Schematic diagram of the top view of the first track groove of the present invention.

[0026] Figure 9 It is a structural schematic diagram of the first engaging component part in the present invention.

[0027] Figure 10 It is a structural schematic diagram of another technical solution of the first engaging assembly in the present invention.

[0028] Figure 11 It is a structural schematic diagram of the first rotating seat and the second rotating seat in the present invention.

[0029] Figure 12 For the present invention Figure 11 Enlarged view of point D in the middle.

[0030] Figure 13 It is a structural cross-sectional view of the positioning ring part in the present invention.

[0031] Figure 14 It is a structural cross-sectional view of the telescopic rod in the present invention.

[0032] Figure 15 Schematic diagram of the connection structure between the first baffle and the sliding seat in the present invention.

[0033] In the figure: 1, injection molding machine body; 2, sliding seat; 3, material pick-up rod; 4, material pick-up tray; 5, injection molded part; 6, suction cup; 7, movable chamber; 8, first rotating seat; 9, first cutting knife; 10, second rotating seat; 11, second cutting knife; 12, core rod; 13, boss; 14, side seat; 15, first slide groove; 16, first track groove; 161, horizontal part; 162, first inclined part; 163, second inclined part; 164, horizontal part; 165, horizontal part; 166, horizontal part; 167, horizontal part; 168, horizontal part; 169, horizontal part; 170, horizontal part; 171, horizontal part; 172, horizontal part; 173, horizontal part; 174, horizontal part; 175, horizontal part; 176, horizontal part; 177, horizontal part; 178, horizontal part; 179, horizontal part; 180, horizontal part; 181, horizontal part; 182, horizontal part; 183, horizontal part; 184, horizontal part; 185, horizontal part; 186, horizontal part; 187, horizontal part; 188, horizontal part; 189, horizontal part; 190, horizontal part; 191, horizontal part; 192, horizontal part; 193, horizontal part; 194, horizontal part; 195, horizontal part; 196, horizontal part; 197, horizontal part; 198, horizontal part; 199, horizontal part; 199, horizontal part; 191, horizontal part 4. First baffle; 165. Second baffle; 17. Sliding protrusion; 18. Sliding cavity; 19. Transmission rod; 20. Rotating shaft; 21. Gear; 22. Push rod; 23. Tooth plate; 24. Slot; 25. Latch; 26. Protruding plate; 27. Spring slot; 28. First spring; 29. ​​Release slot; 30. Receiving cavity; 31. Second spring; 32. First slot; 33. First insert; 34. Limiting protrusion; 35. Spring piece; 36. Second slot; 37. Second insert; 38. Groove; 39. Insertion column; 41. Receiving slot; 42. Third spring; 43. Semicircular ring groove; 44. Positioning block; 45. Roller; 46. Limiting groove; 47. Slide bar; 48. First mounting seat; 49. Positioning ring; 50. Limiting ball; 51. Second track groove; 511. Arc portion; 512. Wave portion; 5121. Outward displacement portion; 5122. Inward displacement portion; 5 2. Telescopic rod; 521. Inner rod; 522. Outer rod; 523. Slider; 524. Third slide groove; 53. Second mounting seat; 54. Slide rail; 55. Servo cylinder; 56. Side plate; 57. Reciprocating screw rod; 58. Servo motor; 59. Moving seat; 60. Guide rod; 61. Rotating groove; 62. Rotating rod; 63. Torsion spring; 64. First contact block; 65. Second contact block; 66. Connecting plate; 67. Fourth spring. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] For example 1, please refer to Figures 1-15, a material taking device of an injection molding machine, comprising a sliding seat 2 arranged on one side of an injection molding machine body 1, a material taking rod 3 being slidably arranged on the sliding seat 2, a material taking tray 4 being fixed at the end of the material taking tray 3, a suction cup 6 for adsorbing and fixing an injection molded part 5 being provided on the material taking tray 4, an active cavity 7 being opened inside the material taking tray 4, a first rotating seat 8 and a second rotating seat 10 being provided inside the active cavity 7, a first cutting knife 9 being provided inside the first rotating seat 8, a second cutting knife 11 being provided inside the second rotating seat 10, a core rod 12 being slidably arranged inside the material taking rod 3, the movement of the core rod 12 drives the second cutting knife 11 to move toward the first cutting knife 9 to cut off a boss 13 on the injection molded part 5; A side seat 14 is fixed to the sliding seat 2, and a first slide groove 15 is defined on the side seat 14. The end of the core rod 12 is slidably disposed in the first slide groove 15. A first track groove 16 is defined inside the first slide groove 15. A sliding protrusion 17 is fixed to the end of the core rod 12. The sliding protrusion 17 is slidably disposed in the first track groove 16. The first track groove 16 includes a horizontal portion 161, a first inclined portion 162, and a second inclined portion 163 that are sequentially connected. A first baffle 164 is elastically provided at the connection between the horizontal portion 161 and the first inclined portion 162, and a second baffle 165 is elastically provided at the connection between the second inclined portion 163 and the horizontal portion 161. A slide rail 54 is fixed to the bottom of the injection molding machine body 1, and the sliding seat 2 is slidably set on the slide rail 54. A servo electric cylinder 55 is fixed to the injection molding machine body 1, and the output end of the servo electric cylinder 55 is fixed to the surface of the sliding seat 2. A side plate 56 is fixed to the top of the sliding seat 2, and a reciprocating screw 57 is rotatably set on the inner side of the side plate 56. A servo motor 58 is fixed to the outer surface of the side plate 56, and the output end of the servo motor 58 is fixedly connected to one end of the reciprocating screw 57. A moving seat 59 is threadedly connected to the circumference of the reciprocating screw 57, and the end of the material picking rod 3 is fixed on the moving seat 59.

[0036] In this technical solution, after the injection molding machine body 1 completes the injection molding of the injection molded part 5, the injection molding machine body 1 is opened to Figure 1 In this state, the injection molded part 5 is a wastepaper basket, which is sleeved on the injection molding machine body 1. The bottom end of the wastepaper basket is located on the outside, and there is a protrusion 13 at the bottom end of the wastepaper basket that needs to be removed. When taking the injection molded part 5, the servo electric cylinder 55 is first used to push the sliding seat 2 to slide on the slide rail 54, and the sliding seat 2 drives the taking rod 3 to move, and the taking rod 3 drives the taking tray 4 to extend into the inner side of the injection molding machine body 1. After the insertion is completed, Figure 1As shown, the servo motor 58 drives the reciprocating screw 57 to rotate, so that the moving seat 59 moves to the left on the reciprocating screw 57, the moving seat 59 drives the material picking rod 3 to move to the left, the material picking rod 3 drives the material picking tray 4 to move to the left, and the material picking tray 4 drives the suction cup 6 to move to the left until the suction cup 6 contacts the bottom end of the injection molded part 5 and adsorbs the bottom end of the injection molded part 5 through the suction cup 6, then the moving seat 59 resets to the right on the reciprocating screw 57, drives the material picking rod 3 and the material picking tray 4 to reset to the right, so that the suction cup 6 removes the injection molded part 5 from the injection molding machine body 1 The servo electric cylinder 55 drives the sliding seat 2 to reset, drives the material removal tray 4 and the suction cup 6 to be moved out from the inside of the injection molding machine body 1, removes the injection molded part 5 from the suction cup 6, and completes the material removal work of the injection molded part 5. In this technical solution, the suction cup 6 can be a vacuum suction cup 6, which is a prior art. When the suction cup 6 contacts the bottom end of the injection molded part 5, it sucks air and adsorbs the injection molded part 5 by negative pressure. When the injection molded part 5 is taken out, the suction cup 6 deflates the air, releases the negative pressure state, and unloads the injection molded part 5. The suction cup 6 is not an innovative point of this application and will not be described in detail. During the material taking process, when the material taking tray 4 moves toward the injection molded part 5, Figure 8 As shown, first, the material taking rod 3 drives the core rod 12 to slide downward inside the first slide groove 15, and the core rod 12 drives the sliding protrusion 17 to slide along the horizontal portion 161 of the first track groove 16 until the sliding protrusion 17 slides to the bottom of the horizontal portion 161. At this time, the material taking tray 4 drives the suction cup 6 to move to the injection molded part 5 and adsorbs the injection molded part 5. Then the suction cup 6 drives the injection molded part 5 to move in the opposite direction and removes the injection molded part 5 from the injection molding machine body 1. When the suction cup 6 drives the injection molded part 5 to move in the opposite direction, due to the interference of the first baffle 164, the sliding protrusion 17 will slide along the first inclined portion 162, so that the sliding protrusion 17 drives the core rod 1 2 moves to the left, the core rod 12 moves to the left, pushing the second rotating seat 10 to move to the left, and the second rotating seat 10 drives the second cutting knife 11 to move to the left, so that the second cutting knife 11 moves in the direction of the first cutting knife 9. The first cutting knife 9 and the second cutting knife 11 cooperate to conveniently cut off the redundant protrusion 13 on the injection molded part 5, and then the sliding protrusion 17 slides along the second inclined portion 163, so that the second cutting knife 11 and the second rotating seat 10 are reset. When the sliding protrusion 17 slides to the horizontal portion 161 again, due to the interference of the second baffle 165, the sliding protrusion 17 can only slide downward along the horizontal portion 161; By providing the first baffle 164, the sliding protrusion 17 can only slide from the horizontal portion 161 to the first inclined portion 162, and cannot slide from the first inclined portion 162 to the horizontal portion 161. By providing the second baffle 165, the sliding protrusion 17 can only slide from the second inclined portion 163 to the horizontal portion 161, and cannot slide from the horizontal portion 161 to the second inclined portion 163. The structural principles of the first baffle 164 and the second baffle 165 are the same. The structure of the first baffle 164 will be specifically described below: Figure 15 As shown, a rotating groove 61 is provided inside the sliding seat 2, and a rotating rod 62 is rotatably provided inside the rotating groove 61. The first baffle 164 is fixedly sleeved on the rotating rod 62. A torsion spring 63 is also provided on the circumference of the rotating rod 62. The a end of the torsion spring 63 is fixed to the surface of the first baffle 164, and the b end of the torsion spring 63 is fixed to the inner wall of the rotating groove 61. A first interference block 64 is fixed to the surface of the first baffle 164, and a second interference block 65 is fixed to the inner wall of the rotating groove 61. When the sliding protrusion 17 slides along the bottom of the horizontal portion 161, the sliding protrusion 17 is located on the right side of the first baffle 164, and the sliding protrusion 17 conflicts with the first baffle 164, prompting the first baffle 164 to press Figure 15 The torsion spring 63 stores force, and when the sliding protrusion 17 slides to the bottom of the first inclined portion 162, the sliding protrusion 17 does not conflict with the first baffle 164. At this time, the torsion spring 63 releases force, causing the first baffle 164 to return to its original position. Figure 15 In this state, the sliding protrusion 17 is on the left side of the first baffle 164. Due to the interference between the first and second abutting blocks 64 and 65, the first baffle 164 cannot be pressed. Figure 15 The sliding protrusion 17 can only continue to slide along the first inclined portion 162 and cannot slide back along the horizontal portion 161.

[0037] In the second embodiment, after the protrusion 13 of the injection molded part 5 is cut, there will be some unevenness at the cut portion of the protrusion 13, thereby affecting the use effect of the injection molded part 5. To address this problem, this embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figures 1-15 , a sliding cavity 18 is provided inside the feeding rod 3 for sliding the core rod 12, and the end of the core rod 12 is connected to the transmission rod 19 through a limiting assembly. The end of the transmission rod 19 is slidably connected to the outer surface of the second rotating seat 10, and a rotating shaft 20 is fixed on the first rotating seat 8. The rotating shaft 20 is rotatably connected to the feeding tray 4, and a gear 21 is fixed to the end of the rotating shaft 20. A push rod 22 is fixed to the surface of the core rod 12. The feeding rod 3 and the feeding tray 4 are elastically provided with a tooth plate 23 that meshes with the gear 21. A first engaging assembly is commonly provided between the first rotating seat 8 and the second rotating seat 10. A guide rod 60 is fixed to the inner side of the feeding tray 4. The guide rod 60 passes through the second rotating seat 10 and is slidably connected to the second rotating seat 10; The limiting assembly includes a card slot 24 formed on the surface of the transmission rod 19, a card rod 25 slidably provided on the core rod 12, a convex plate 26 fixed to the surface of the card rod 25, a spring slot 27 for sliding the convex plate 26 formed inside the core rod 12, a first spring 28 fixed between the inner wall of the convex plate 26 and the spring slot 27, a release slot 29 for sliding the card rod 25 formed on the inner wall of the sliding cavity 18, a receiving cavity 30 for sliding the transmission rod 19 formed inside the core rod 12, and a second spring 31 fixed between the inner wall of the receiving cavity 30 and the end of the transmission rod 19; The first engaging assembly includes a first slot 32 formed on the first rotating seat 8. A first inserting block 33 is fixed to the surface of the second rotating seat 10 for inserting into the first slot 32. A limiting protrusion 34 is fixed to the outer surface of the first inserting block 33. A spring 35 is provided on the inner wall of the first slot 32 for interfering with the limiting protrusion 34. A semicircular annular groove 43 is provided on the outer surface of the first rotating seat 8 and the second rotating seat 10. A positioning block 44 is fixed to the end of the transmission rod 19. A roller 45 is rotatably provided on the positioning block 44. The roller 45 is slidably provided in the semicircular annular groove 43, and a limiting groove 46 for the sliding of the positioning block 44 is provided on the inner wall of the semicircular annular groove 43.

[0038] In this technical solution, when the core rod 12 moves to the left, the core rod 12 first drives the transmission rod 19 to move synchronously through the action of the limiting component, so that the transmission rod 19 pushes the second rotating seat 10 to move to the left, so that the second rotating seat 10 drives the second cutting knife 11 to move to the left, completing the cutting of the boss 13. After the boss 13 is cut off, the second rotating seat 10 and the first rotating seat 8 are engaged, and the second cutting knife 11 and the first cutting knife 9 form a complete circle, as shown in FIG. Figure 6 and Figure 7 As shown, first, when the core rod 12 drives the transmission rod 19 to move to the left, the card rod 25 is driven to slide along the inner wall of the sliding cavity 18. After the boss 13 is cut off, that is, the second cutting knife 11 and the first cutting knife 9 form a complete circle, the card rod 25 slides along the release groove 29, and the first spring 28 releases the force, so that the convex plate 26 drives the card rod 25 to move upward, and the bottom end of the card rod 25 is removed from the card groove 24, releasing the restriction on the core rod 12. At this time, when the core rod 12 moves to the left again, the transmission rod 19 will not move to the left together, so that the second spring 31 is compressed and stored. Figure 11As shown, when the core rod 12 moves to the left, it drives the push rod 22 to move. After the protrusion 13 is cut off, the push rod 22 moves to contact one end of the tooth plate 23. When the core rod 12 is released from the restriction, the core rod 12 drives the push rod 22 to continue to move to the left. At this time, the push rod 22 moves to the left and drives the tooth plate 23 to move to the left. By setting a connecting plate 66 on the tooth plate 23, a fourth spring 67 is fixed between one side of the connecting plate 66 and the inner wall of the material taking rod 3, the tooth plate 23 moves to the left and drives the gear 21 to rotate. At the same time, the tooth plate 23 passes The fourth spring 67 is compressed by the connecting plate 66, so that the fourth spring 67 accumulates force. Then, the gear 21 rotates to drive the rotating shaft 20 to rotate. The rotating shaft 20 rotates to drive the first rotating seat 8 to rotate. The rotating first rotating seat 8 rotates to drive the engaged second rotating seat 10 to rotate synchronously, thereby causing the first cutting blade 9 and the second cutting blade 11 to rotate. After the first cutting blade 9 and the second cutting blade 11 cut off the protrusion 13, the cut portion can be polished by rotating to increase the flatness of the bottom of the injection molded part 5. When the first plug-in block 33 is inserted into the first slot 32, the second rotating seat 10 is separated from the guide rod 60, so that the guide rod 60 does not affect the rotation of the second rotating seat 10. When the first plug-in block 33 is inserted into the first slot 32, the limiting protrusion 34 moves to the inner side of the spring piece 35, so that the spring piece 35 contacts the limiting protrusion 34, thereby increasing the stability of the first rotating seat 8 and the second rotating seat 10 when the first rotating seat 10 is engaged. Only when there is a large pulling force at the first plug-in block 33 can the limiting protrusion 34 be pulled out from one side of the spring piece 35, so that the first plug-in block 33 is moved out from the first slot 32. That is, when the transmission rod 1 When 9 performs the reset movement, the first plug block 33 can be pulled out from the inside of the first slot 32 to release the engaging state of the first rotating seat 8 and the second rotating seat 10; after the first rotating seat 8 and the second rotating seat 10 are engaged, the two semicircular annular grooves 43 form a complete circular annular groove, and the positioning block 44, the roller 45 and the semicircular annular groove 43 are provided, so that when the first rotating seat 8 and the second rotating seat 10 rotate, the positioning block 44 drives the roller 45 to slide inside the two semicircular annular grooves 43, thereby not affecting the rotation of the first rotating seat 8 and the second rotating seat 10; through the provided limiting groove 46, a flange is fixed on the outer side of the positioning block 44, so that when the roller 45 slides inside the semicircular annular groove 43, the positioning block 44 drives the flange to slide along the limiting groove 46, and the flange will not move out of the limiting groove 46, so that the positioning block 44 will not move out of the semicircular annular groove 43, so that when the transmission rod 19 moves left and right, it can drive the second rotating seat 10 to move left and right.

[0039] Example 3: This example is another technical solution for the first engaging assembly. For details, please refer to Figures 1-15 The first engaging assembly includes a second slot 36 opened on the first rotating seat 8, a second plug block 37 for inserting into the second slot 36 is fixed on the surface of the second rotating seat 10, a groove 38 is opened on the outer surface of the second plug block 37, a post 39 is slidingly set inside the second slot 36, a receiving groove 41 is opened on one side of the second slot 36, and a third spring 42 is fixed between the inside of the receiving groove 41 and the post 39.

[0040] In this technical solution, if Figure 11 As shown, when the second rotating seat 10 moves toward the first rotating seat 8, the second rotating seat 10 drives the second plug block 37 to move toward the second slot 36. When the second plug block 37 is inserted into the second slot 36, the second plug block 37 conflicts with the plug post 39, so that the plug post 39 is received in the receiving groove 41, compressing the third spring 42. When the second plug block 37 is fully inserted into the second slot 36, that is, after the second rotating seat 10 and the first rotating seat 8 are engaged, the third spring 42 releases the force, pushing the plug post 39 out from the receiving groove 41, so that the plug post 39 is inserted into the groove 38, restricting the second plug block 37 so that the second plug block 37 will not move out from the second slot 36 without a large pulling force, thereby increasing the stability of the second rotating seat 10 and the first rotating seat 8 during rotation.

[0041] Example 4: This example is an improvement made on the basis of Example 2 or Example 3. For details, please refer to Figures 1-15 A slide rod 47 is slidably provided on the first rotating seat 8, one end of the slide rod 47 is fixed with a first mounting seat 48, the first cutting knife 9 is fixedly provided on the first mounting seat 48, a positioning ring 49 is fixed inside the movable cavity 7, the other end of the slide rod 47 is fixed with a limiting ball 50, and a second track groove 51 for sliding the limiting ball 50 is opened inside the positioning ring 49, a telescopic rod 52 is fixed to the inner wall of the second rotating seat 10, and a second mounting seat 53 is fixed to the end of the telescopic rod 52, the second cutting knife 11 is fixed on the second mounting seat 53, and a second clamping assembly is commonly provided between the first mounting seat 48 and the second mounting seat 53; The second track groove 51 includes an arc portion 511 and a wave portion 512 that are connected in sequence. The wave portion 512 includes an outward-moving portion 5121 and an inward-moving portion 5122 that are connected. The telescopic rod 52 includes an inner rod 521 and an outer rod 522. A slider 523 is fixed to the end of the inner rod 521, and a third sliding groove 524 is opened inside the outer rod 522 for the slider 523 to slide.

[0042] In this technical solution, the first engaging assembly is provided to increase the stability of the first mounting seat 48 and the second mounting seat 53 when engaged. The second engaging assembly has the same structure and principle as the first engaging assembly, and a repeated description thereof will not be given. When the second cutting blade 11 and the first cutting blade 9 rotate, the first cutting blade 9 drives the sliding rod 47 to rotate, so that the sliding rod 47 drives the limiting ball 50 to slide inside the second track groove 51. When the sliding rod 47 slides along the wave portion 512 of the second track groove 51, the limiting ball 50 drives the sliding rod 47 to reciprocate left and right. The reciprocating motion of the sliding rod 47 drives the first mounting seat 48 to reciprocate left and right. At this time, through the provided telescopic rod 52, when the first mounting seat 48 and the second mounting seat 53 are engaged, the first mounting seat 48 reciprocates left and right, driving the second mounting seat 53 to move synchronously. As a result, while the first cutting blade 9 and the second cutting blade 11 are rotating and grinding, the first cutting blade 9 and the second cutting blade 11 are shaking and grinding left and right, thereby improving the grinding effect. In this technical solution, when the second cutting knife 11 cuts the boss 13 to the left, Figure 13 and Figure 14 As shown, the slider 523 is located at the rightmost end of the third sliding groove 524, and the slider 523 cannot move to the right, so that when the second cutting knife 11 cuts the boss 13, the slider 523 is abutted by the third sliding groove 524, thereby maintaining the stability of the second cutting knife 11 during cutting. At the same time, the initial position of the limiting ball 50 is in the arc portion 511 of the second track groove 51, so that the limiting ball 50 cannot move left and right, thereby maintaining the stability of the first cutting knife 9; when the boss 13 is cut off, the first mounting seat 48 and the second mounting seat 53 drive the first cutting knife 9 and the second cutting knife 11 to rotate, first the limiting ball 50 slides from the arc portion 511 to the outward moving portion 5121 of the wave portion 512, so that the limiting ball 50 slides in the outward moving portion 5121 When the limiting ball 50 slides in the inward moving portion 5122, the limiting ball 50 drives the sliding bar 47 to slide inward, and the sliding bar 47 drives the first mounting seat 48 and the second mounting seat 53 to move. At this time, the sliding bar 523 slides to the right in the third sliding groove 524, so that when the sliding bar 47 drives the limiting ball 50 to reciprocate left and right in the wave portion 512, the first cutting knife 9 and the second cutting knife 11 can be shaken left and right.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A material taking device for an injection molding machine, comprising a sliding seat (2) arranged on one side of an injection molding machine body (1), characterized in that: A material picking rod (3) is slidably provided on the sliding seat (2), a material picking tray (4) is fixed at the end of the material picking rod (3), a suction cup (6) for adsorbing and fixing the injection molded part (5) is provided on the material picking tray (4), an active cavity (7) is provided inside the material picking tray (4), a first rotating seat (8) and a second rotating seat (10) are provided inside the active cavity (7), a first cutting knife (9) is provided inside the first rotating seat (8), a second cutting knife (11) is provided inside the second rotating seat (10), a core rod (12) is slidably provided inside the material picking rod (3), and the movement of the core rod (12) drives the second cutting knife (11) to move toward the first cutting knife (9) to cut off the convex column (13) on the injection molded part (5).

2. The material taking device of the injection molding machine according to claim 1, characterized in that: A side seat (14) is fixed on the sliding seat (2), and a first sliding groove (15) is provided on the side seat (14). The end of the core rod (12) is slidably arranged in the first sliding groove (15), and a first track groove (16) is provided inside the first sliding groove (15). A sliding protrusion (17) is fixed on the end of the core rod (12), and the sliding protrusion (17) is slidably arranged in the first track groove (16). The first track groove (16) includes a horizontal part (161), a first inclined part (162) and a second inclined part (163) which are connected in sequence. A first baffle (164) is elastically provided at the connection between the horizontal part (161) and the first inclined part (162), and a second baffle (165) is elastically provided at the connection between the second inclined part (163) and the horizontal part (161).

3. The material taking device of the injection molding machine according to claim 1, characterized in that: The interior of the feeding rod (3) is provided with a sliding cavity (18) for the core rod (12) to slide, the end of the core rod (12) is connected to a transmission rod (19) through a limiting component, the end of the transmission rod (19) is slidably connected to the outer surface of the second rotating seat (10), a rotating shaft (20) is fixed on the first rotating seat (8), the rotating shaft (20) is rotatably connected to the feeding tray (4), a gear (21) is fixed at the end of the rotating shaft (20), a push rod (22) is fixed on the surface of the core rod (12), the interior of the feeding rod (3) and the feeding tray (4) are elastically provided with a toothed plate (23) meshing with the gear (21), a first engaging component is commonly provided between the first rotating seat (8) and the second rotating seat (10), a guide rod (60) is fixed on the inner side of the feeding tray (4), the guide rod (60) passes through the second rotating seat (10) and is slidably connected to the second rotating seat (10).

4. The material taking device of the injection molding machine according to claim 3, characterized in that: The limiting component includes a card slot (24) provided on the surface of the transmission rod (19), a card rod (25) is slidably provided on the core rod (12), a convex plate (26) is fixed on the surface of the card rod (25), a spring slot (27) for the convex plate (26) to slide is provided inside the core rod (12), a first spring (28) is fixed between the inner wall of the convex plate (26) and the spring slot (27), a release slot (29) for the card rod (25) to slide is provided on the inner wall of the sliding cavity (18), a receiving cavity (30) for the transmission rod (19) to slide is provided inside the core rod (12), and a second spring (31) is fixed between the inner wall of the receiving cavity (30) and the end of the transmission rod (19).

5. The material taking device of the injection molding machine according to claim 3, characterized in that: The first engaging assembly comprises a first slot (32) provided on the first rotating seat (8); a first inserting block (33) for inserting into the first slot (32) is fixed on the surface of the second rotating seat (10); a limiting protrusion (34) is fixed on the outer surface of the first inserting block (33); and a spring piece (35) for contacting the limiting protrusion (34) is provided on the inner wall of the first slot (32).

6. The material taking device of the injection molding machine according to claim 3, characterized in that: The first engaging assembly includes a second slot (36) provided on the first rotating seat (8), a second plug (37) for inserting into the second slot (36) is fixed on the surface of the second rotating seat (10), a groove (38) is provided on the outer surface of the second plug (37), an insert post (39) is slidably provided inside the second slot (36), a receiving slot (41) is provided on one side of the second slot (36), and a third spring (42) is fixed between the inside of the receiving slot (41) and the insert post (39).

7. The material taking device of the injection molding machine according to claim 4, characterized in that: The outer surfaces of the first rotating seat (8) and the second rotating seat (10) are both provided with a semicircular annular groove (43), a positioning block (44) is fixed to the end of the transmission rod (19), a roller (45) is rotatably provided on the positioning block (44), the roller (45) is slidably provided in the semicircular annular groove (43), and a limiting groove (46) for the sliding of the positioning block (44) is provided on the inner wall of the semicircular annular groove (43).

8. The material taking device of the injection molding machine according to claim 3, characterized in that: A slide rod (47) is slidably provided on the first rotating seat (8), one end of the slide rod (47) is fixed with a first mounting seat (48), the first cutting knife (9) is fixedly provided on the first mounting seat (48), a positioning ring (49) is fixed inside the movable cavity (7), a limiting ball (50) is fixed on the other end of the slide rod (47), a second track groove (51) for the limiting ball (50) to slide is provided inside the positioning ring (49), a telescopic rod (52) is fixed on the inner wall of the second rotating seat (10), the end of the telescopic rod (52) is fixed with a second mounting seat (53), the second cutting knife (11) is fixedly provided on the second mounting seat (53), and a second engaging assembly is commonly provided between the first mounting seat (48) and the second mounting seat (53).

9. The material taking device of the injection molding machine according to claim 8, characterized in that: The second track groove (51) includes an arc portion (511) and a wave portion (512) connected in sequence, the wave portion (512) includes an outward moving portion (5121) and an inward moving portion (5122) connected in sequence, the telescopic rod (52) includes an inner rod (521) and an outer rod (522), a slider (523) is fixed to the end of the inner rod (521), and a third sliding groove (524) for the slider (523) to slide is opened inside the outer rod (522).

10. The material taking device of the injection molding machine according to claim 1, characterized in that: A slide rail (54) is fixed to the bottom of the injection molding machine body (1), and the sliding seat (2) is slidably arranged on the slide rail (54). A servo electric cylinder (55) is fixed to the injection molding machine body (1), and the output end of the servo electric cylinder (55) is fixed to the surface of the sliding seat (2). A side plate (56) is fixed to the top of the sliding seat (2), and a reciprocating screw (57) is rotatably arranged on the inner side of the side plate (56). A servo motor (58) is fixed to the outer surface of the side plate (56), and the output end of the servo motor (58) is fixedly connected to one end of the reciprocating screw (57). A moving seat (59) is threadedly connected to the circumference of the reciprocating screw (57), and the end of the material picking rod (3) is fixed to the moving seat (59).

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