An injection molding machine nozzle cutting device

Abstract

The present invention discloses a nozzle cutting device for an injection molding machine, belonging to the field of injection molding machines. The device includes a nozzle, a support plate is arranged beside the nozzle, a motor is arranged on the support plate, an output shaft of the motor is connected with a rotating rod, the rotating rod is connected with a cutting knife, an angle-adjustable fixing plate is connected to the upper surface of the support plate, a deployable fixing frame is arranged on the lower surface of the support plate, and fixing holes for fixing are formed on both the fixing plate and the fixing frame. For the nozzle cutting device of the injection molding machine of the present invention, the overflow material on the nozzle is cut by arranging the cutting knife, and the position of the cutting knife is adjustable, thus overcoming the limitation of the installation distance. By arranging the fixing plate and the fixing frame, the angle of the fixing plate is adjustable, the fixing frame can be switched between two adjacent sides of the support plate, and the length of the fixing frame is adjustable. The fixing plate and the fixing frame are used in cooperation to reduce the influence of the components of the injection molding machine itself and reduce the difficulty of installing the device.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines, and particularly to a material cutting device for an injection molding machine nozzle. Background Art

[0002] Injection molding is a method for producing industrial product shapes. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding method and die casting method. An injection molding machine (referred to as an injection machine or an injection molding machine for short) is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and a mold.

[0003] Before injecting thermoplastic materials into the mold, there is an additional operation of injecting cold materials before injection. However, just at the end of injecting cold materials, the materials will be carried out by the cold materials, and there is a certain pressure in the barrel. The nozzle will overflow and hang on the nozzle, and then subsequent injection will be directly carried out. After a long time, most of the overflow materials will hang beside the nozzle, and this part of the overflow materials needs to be cut off. There are many types of injection molding machines, and the positions and shapes of some components are quite different, making it difficult to install the cutting and mounting device. Therefore, the present application provides a material cutting device for an injection molding machine nozzle. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a material cutting device for an injection molding machine nozzle. By setting a cutting knife to cut the overflow materials on the nozzle, and by setting a fixing plate and a fixing frame, the angle of the fixing plate is adjustable, and the fixing frame can be switched between two adjacent sides of the support plate. The fixing plate and the fixing frame are used in combination to reduce the influence of the components of the injection molding machine itself and reduce the difficulty of installing the device. To solve the above technical problems, the present invention is solved by the following technical solutions.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A material cutting device for an injection molding machine nozzle includes a nozzle. A support plate is arranged beside the nozzle. A motor is arranged on the support plate. The output shaft of the motor is connected to a rotating rod. The rotating rod is connected to a cutting knife. The upper surface of the support plate is connected with a fixing plate with adjustable angle. The lower surface of the support plate is provided with an expandable fixing frame. Fixing holes for fixing are opened on both the fixing plate and the fixing frame.

[0007] Preferably, an adjusting component is arranged between the rotating rod and the cutting knife. The adjusting component includes an adjusting screw, an adjusting knob and a limiting block. The adjusting knob is rotationally matched with the rotating rod and is threadedly connected with the adjusting screw. The limiting block is fixed in the cavity of the rotating rod. One end of the adjusting screw is fixed to the cutting knife, and the other end is located inside the rotating rod. And a limiting groove adapted to the limiting block is opened on the adjusting screw.

[0008] Preferably, an angle adjustment component and a limiting component are provided between the rotating rod and the motor output shaft. The angle adjustment component includes a turntable, a locking rod, and a locking block. One side of the turntable is fixed to the motor output shaft, the other side of the turntable is rotatably fitted with the first end of the locking rod, the second end of the locking rod is fixed to the rotating rod, and the locking block is connected to the turntable for fixing the locking rod. The limiting component is used for locking when the rotating rod is reset.

[0009] Preferably, the limiting component includes a first limiting rod and a second limiting rod. The first limiting rod and the second limiting rod are respectively located on the upper and lower sides of the rotating rod, and the second limiting rod is connected with an elastic telescopic rod.

[0010] Preferably, the spring in the elastic telescopic rod is in a compressed state, and the first limiting rod is connected with a height adjustment component for adjusting the height of the first limiting rod.

[0011] Preferably, a slider is fixed below the motor. One side of the slider is slidably fitted with the support plate, and the other end of the slider is connected with a first screw rod. The first screw rod is rotatably fitted with the support plate.

[0012] Preferably, two rotating shafts are connected below the support plate. The two rotating shafts are arranged diagonally on the support plate. The rotating shafts are rotatably connected with the fixing frame. The other end of the fixing frame is provided with an insertion rod, and the support plate is provided with a slot for cooperating with the insertion rod.

[0013] Preferably, the upper end of the rotating shaft is rotatably connected with the support plate for the fixing frame to rotate to the other side of the support plate.

[0014] Preferably, the two ends of the fixing frame do not exceed the width range of the support plate, and the width of the support plate is less than half of its length.

[0015] Preferably, the fixing frame has a fixed part and a movable part. A lifting second screw rod is provided between the movable part and the fixed part for adjusting the accommodation and extension of the movable part.

[0016] Compared with the prior art, the present invention has the following beneficial effects: For the nozzle cutting device of the injection molding machine of the present invention, the overflow material on the nozzle is cut by setting a cutting knife, and the position of the cutting knife is adjustable, reducing the limitation of the installation distance. By setting a fixing plate and a fixing frame, the angle of the fixing plate is adjustable, the fixing frame can be switched between two adjacent sides of the support plate, and the length of the fixing frame is adjustable. The fixing plate and the fixing frame are used in combination, reducing the influence of the components of the injection molding machine itself and reducing the difficulty of installing the device. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the injection molding machine nozzle cutting device of the present invention.

[0019] Figure 2 It is the Figure 1 enlarged schematic diagram at position A in the injection molding machine nozzle cutting device of the present invention.

[0020] Figure 3 It is a schematic diagram of the overall structure of another perspective of the injection molding machine nozzle cutting device of the present invention.

[0021] Figure 4 It is the Figure 3 enlarged schematic diagram at position B in the injection molding machine nozzle cutting device of the present invention.

[0022] Figure 5 It is a schematic diagram of the adjusting component of the injection molding machine nozzle cutting device of the present invention.

[0023] Figure 6 It is an unfolded schematic diagram of the fixing frame of the injection molding machine nozzle cutting device of the present invention.

[0024] Figure 7 It is a schematic diagram of the insertion rod and the rotating shaft of the injection molding machine nozzle cutting device of the present invention.

[0025] Figure 8 It is the Figure 7 enlarged schematic diagram at position C in the injection molding machine nozzle cutting device of the present invention

[0026] Explanation of figure numbers: 1. Nozzle; 2. Support plate; 21. Motor; 211. Slide block; 22. Rotating shaft; 23. Slot; 24. Protruding block; 3. Rotating rod; 31. Cutting knife; 4. Fixed plate; 41. Gear; 42. First bolt; 43. Arc plate; 5. Fixed frame; 51. Insertion rod; 511. Guide wheel; 52. First spring; 53. Second bolt; 531. Guide block; 54. Fixed part; 55. Movable part; 56. Second screw rod; 6. Adjusting component; 61. Adjusting screw rod; 62. Adjusting knob; 63. Limiting block; 64. Limiting groove; 7. Angle adjusting component; 71. Turntable; 72. Locking rod; 73. Locking block; 74. Locking bolt; 8. Limiting component; 81. First limiting rod; 82. Second limiting rod; 83. Elastic telescopic rod; 84. Height adjusting part; 85. Slide plate; 86. Bottom plate; 87. First screw rod; 88. Height adjusting bolt. Detailed Implementation Modes

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles defined in the following description can be used in other implementation modes, variation modes, improvement modes, equivalent modes, and other technical solutions without departing from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that in the disclosure of the present invention, the orientations or positions indicated by terms such as "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or position relationships shown in the accompanying drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present invention.

[0030] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0031] Please refer to Figures 1-8, an injection molding machine nozzle cutting device, including a nozzle 1, a support plate 2 is arranged beside the nozzle 1, a motor 21 is arranged on the support plate 2, the motor 21 is a motor 21 that can rotate forward and backward, the output shaft of the motor 21 is connected to a rotating rod 3, the rotating rod 3 is connected to a cutting knife 31, the output shaft of the motor 21 drives the rotating rod 3 to rotate, and the rotation of the rotating rod 3 causes the cutting knife 31 to act, cutting off the overflow material on the nozzle 1. The upper surface of the support plate 2 is connected to an angle-adjustable fixing plate 4, the fixing plate 4 is arranged at the corner of the support plate 2 and is located on one side of the cutting knife 31, as shown in the figure, of course, it can also be arranged on the other side, which is not shown in the figure. The bottom end of the fixing plate 4 has a bent extension plate, a gear 41 is fixedly connected to the upper side of the extension plate, the gear 41 is rotatably connected to the support plate 2, a first bolt 42 is threadedly connected to the support plate 2, the end of the first bolt 42 is rotatably connected to an arc-shaped plate 43, teeth are fixed on the arc-shaped plate 43, and the lower end surface of the arc-shaped plate 43 contacts the support plate 2 to prevent the arc-shaped plate 43 from rotating when the first bolt 42 is rotated. When the angle of the fixing plate 4 needs to be adjusted, rotate the first bolt 42 to make the arc-shaped plate 43 leave the gear 41, after rotating the fixing plate 4, engage the teeth on the arc-shaped plate 43 with the gear 41, thereby fixing the fixing plate 4 at this time. A deployable fixing frame 5 is arranged on the lower surface of the support plate 2, and fixing holes for fixing are opened on both the fixing plate 4 and the fixing frame 5. The fixing plate 4 is used to fix the support plate 2, and the angle of the fixing plate 4 is adjustable, which is more convenient to fix the support plate 2 on the injection molding machine, while the fixing frame 5 is used as needed. When reinforcement is required or the fixing plate 4 cannot meet the fixing requirements, the fixing frame 5 can be deployed and fixed to the injection molding machine.

[0032] An adjusting component 6 is arranged between the rotating rod 3 and the cutting knife 31. The adjusting component 6 includes an adjusting screw 61, an adjusting knob 62 and a limiting block 63. The adjusting knob 62 is rotationally matched with the rotating rod 3 and is threadedly connected to the adjusting screw 61. The limiting block 63 is fixed in the cavity of the rotating rod 3. One end of the adjusting screw 61 is fixed to the cutting knife 31, and the other end is located inside the rotating rod 3. A limiting groove 64 adapted to the limiting block 63 is opened on the adjusting screw 61. Rotate the adjusting knob 62, and the screw moves along the axis of the rotating rod 3, and the cutting knife 31 follows to move. This setting makes the position of the cutting knife 31 adjustable. The limiting groove 64 and the limiting block 63 cooperate to prevent the screw from rotating, thereby preventing the cutting knife 31 from rotating.

[0033] An angle adjustment component 7 and a limiting component 8 are provided between the rotating rod 3 and the output shaft of the motor 21. The angle adjustment component 7 includes a turntable 71, a locking rod 72 and a locking block 73. One side of the turntable 71 is fixed to the output shaft of the motor 21, and the other side of the turntable 71 is rotatably engaged with the first end of the locking rod 72. The second end of the locking rod 72 is fixed to the rotating rod 3. The locking block 73 is connected to the turntable 71 for fixing the locking rod 72. The limiting component 8 is used for locking when the rotating rod 3 is reset. A locking groove is provided on the circumferential side of the locking rod 72. The locking block 73 is adapted to the locking rod 72, and one side surface of the locking block 73 contacts the turntable 71, and a locking bolt 74 is rotatably connected, and the locking bolt 74 is threadedly connected to the turntable 71. When the fixed support plate 2 is fixed and the angle of the cutting tool 31 needs to be adjusted, the locking bolt 74 is rotated so that the locking block 73 leaves the locking rod 72. Then the rotating rod 3 is rotated. The rotating rod 3 drives the cutting tool 31 and the locking rod 72 to rotate. When it rotates to the appropriate angle, the locking bolt 74 is rotated to make the locking block 73 stuck on the locking groove to fix the locking rod 72, thereby completing the angle adjustment of the cutting tool 31. One side surface of the locking block 73 contacts the turntable 71 to prevent the locking block 73 from rotating during the movement.

[0034] The limiting component 8 includes a first limiting rod 81 and a second limiting rod 82. The first limiting rod 81 and the second limiting rod 82 are respectively located on the upper and lower sides of the rotating rod 3. The second limiting rod 82 is connected with an elastic telescopic rod 83. When cutting materials, the rotating rod 3 rotates and applies pressure to the second limiting rod 82. The second limiting rod 82 moves downward under the action of the elastic telescopic rod 83. After the rotating rod 3 is reset, the second limiting rod 82 rises under the action of the elastic telescopic rod 83. The second limiting rod 82 supports the reset rotating rod 3, and the first limiting rod 81 limits the reset rotating rod 3 to prevent it from rotating.

[0035] The spring in the elastic telescopic rod 83 is in a compressed state. The first limiting rod 81 is connected with a height adjustment part 84 for adjusting the height of the first limiting rod 81. The spring is in a compressed state. When the rotating rod 3 is adjusted upward in angle, the compressed spring makes the second limiting rod 82 rise, which can continue to support the rotating rod 3. The height adjustment part 84 limits the rotating rod 3 after the angle adjustment by adjusting the height of the first limiting rod 81. Specifically, the height adjustment part 84 includes a sliding plate 85. The first limiting rod 81 is connected with the sliding plate 85. The sliding plate 85 is slidably engaged with the bottom plate 86. There is a height adjustment bolt 88 between the sliding plate 85 and the bottom plate 86. The height adjustment bolt 88 is rotatably connected to the sliding plate 85 and threadedly connected to the bottom plate 86. By rotating the height adjustment bolt 88, the height of the first limiting rod 81 is adjusted. The elastic telescopic rod 83 is fixed to the bottom plate 86, and the bottom plate 86 is fixed to the bottom of the motor 21.

[0036] A slider 211 is fixed below the motor 21. One side of the slider 211 is slidably mated with the support plate 2. The other end of the slider 211 is connected to a first screw rod 87. The first screw rod 87 is rotationally mated with the support plate 2. After the support plate 2 is fixed, it is possible that the cutter 31 is far from the nozzle 1. At this time, by rotating the first screw rod 87, the slider 211 drives the motor 21 to move on the support plate 2, and the motor 21 drives the rotating rod 3 and the cutter 31 to move. The first screw rod 87 is threadedly connected to the support plate 2, so there is a fine-tuning effect. When the cutter 31 approaches the nozzle 1, it can be finely tuned through the first screw rod 87 to cut the material more accurately. It should be noted that the bottom plate 86 is fixed to the slider 211, so that the limiting component 8 moves together with the motor 21 to prevent the rotating rod 3 from disengaging from the limiting component 8.

[0037] Below the support plate 2, two rotating shafts 22 are connected. The two rotating shafts 22 are arranged diagonally on the support plate 2. The two rotating shafts 22 are at the corners of the support plate 2. The rotating shafts 22 are rotationally connected to the fixing frame 5. The other end of the fixing frame 5 is provided with an insertion rod 51. The support plate 2 is provided with a slot 23 that cooperates with the insertion rod 51. The fixing frame 5 is arranged in a counter-supporting manner with respect to the support plate 2. When it is necessary to open the fixing frame 5, the insertion rod 51 is made to leave the slot 23, and the fixing frame 5 is rotated. After the fixing frame 5 is fixed, the two fixing frames 5 support the support plate 2 like legs. At this time, it can be connected to the injection molding machine through the fixing holes on the fixing frame 5. After the fixing frame 5 is fixed, the support plate 2 is fixed. The setting of the fixing frame 5 provides an additional fixing method. Together with the fixing plate 4, the device is less restricted by the components of the injection molding machine.

[0038] A first spring 52 is arranged between the insertion rod 51 and the fixing frame 5. The two ends of the first spring 52 are respectively fixed to the fixing frame 5 and the insertion rod 51. The insertion rod 51 is slidably mated with the fixing frame 5, and there is a through hole on the fixing frame 5 through which the insertion rod 51 extends. The lower end of the insertion rod 51 is rotationally connected to a guide wheel 511. One side surface of the fixing frame 5 is threadedly connected to a second bolt 53. The end of the second bolt 53 is rotationally connected to a guide block 531. There is a cavity in the fixing frame 5 for the guide block 531 to move. The guide block 531 has a guide surface. When it is necessary for the insertion rod 51 to extend, the second bolt 53 is rotated so that the guide surface of the guide block 531 contacts the guide wheel 511, causing the insertion rod 51 to rise and insert into the slot 23, compressing the first spring 52. When the guide block 531 leaves the guide wheel 511, the insertion rod 51 retracts into the fixing frame 5 under the action of the first spring 52.

[0039] A raised block 24 is fixed to the lower surface of the support plate 2, and the raised block 24 is provided with a slot 23. When the fixing frame 5 is parallel to the support plate 2, the fixing frame 5 is in a storage state by inserting the insertion rod 51 into the slot 23.

[0040] When the fixing frame 5 is perpendicular to the support plate 2, the protrusion 24 limits the support plate 2 at this time. A slot 23 is provided on the lower surface of the support plate 2 corresponding to the position of the insertion rod 51. By inserting the insertion rod 51 into the slot 23, the fixing frame 5 in the vertical state is fixed.

[0041] The upper end of the rotating shaft 22 is rotatably connected to the support plate 2, and is used to rotate the fixing frame 5 to the other side of the support plate 2. After the fixing frame 5 rotates to the other end, the lower surface of the support plate 2 corresponds to the position of the insertion rod 51 at this time, and a slot 23 is opened. The slot 23 cooperates with the insertion rod 51 to fix the fixing frame 5 at this time. The bottom end of the fixing frame 5 has two rows of mutually perpendicular fixing holes, and the two rows of holes are staggered. When the fixing frame 5 rotates to the other side through the rotating shaft 22, the position and orientation of the fixing holes on the fixing frame 5 are different. Through this adjustment, the connection position between the device and the injection molding machine can be changed, reducing the influence of the components of the injection molding machine itself and reducing the difficulty of installing the device.

[0042] The ends of the fixing brackets 5 do not exceed the width of the support plate 2, and the width of the support plate 2 is less than half of its length, so that both fixing brackets 5 can be rotated to the other side of the support plate 2. Of course, it is also possible to rotate one fixing bracket 5 to the other side while the other does not rotate to the other side, in which case the two fixing brackets 5 are perpendicular to each other.

[0043] The fixed frame 5 comprises a fixed portion 54 and a movable portion 55. A second lifting screw 56 is disposed between the movable portion 55 and the fixed portion 54 to adjust the retraction and extension of the movable portion 55. The movable portion 55 slides in conjunction with the fixed portion 54. The second screw 56 is threadedly connected to the crossbar of the fixed portion 54. The lower end of the second screw 56 is rotatably connected to the movable portion, and a nut is threadedly connected to the second screw 56. To adjust the length of the fixed frame 5, the second screw 56 is rotated, causing the movable portion 55 to move, extending and retracting. When the desired length is reached, the nut is rotated until it contacts the crossbar of the fixed portion 54, further increasing the stability of the movable portion 55 and the fixed portion 54.

[0044] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A nozzle cutting device for an injection molding machine, comprising a nozzle (1), characterized in that: A support plate (2) is provided beside the nozzle (1), a motor (21) is provided on the support plate (2), an output shaft of the motor (21) is connected to a rotating rod (3), the rotating rod (3) is connected to a cutter (31), an upper surface of the support plate (2) is connected to an angle-adjustable fixing plate (4), a lower surface of the support plate (2) is provided with an expandable fixing frame (5), fixing holes for fixing are provided on both the fixing plate (4) and the fixing frame (5), an angle adjustment component (7) and a limiting component (8) are provided between the rotating rod (3) and the output shaft of the motor (21), the angle adjustment component (7) comprises a rotating disk (71), a locking rod (72) and a locking block (73), one side of the rotating disk (71) is fixed to the output shaft of the motor (21), and the other side of the rotating disk (71) is rotatably engaged with the first end of the locking rod (72) The second end of the locking rod (72) is fixed to the rotating rod (3), and the locking block (73) is connected to the rotating disk (71) for fixing the locking rod (72). The limiting component (8) is used to lock the rotating rod (3) when it is reset. The limiting component (8) includes a first limiting rod (81) and a second limiting rod (82). The first limiting rod (81) and the second limiting rod (82) are respectively located on the upper and lower sides of the rotating rod (3). The second limiting rod (82) is connected to an elastic telescopic rod (83). Two rotating shafts (22) are connected below the support plate (2). The two rotating shafts (22) are arranged diagonally on the support plate (2). The rotating shafts (22) are rotatably connected to the fixing frame (5). The other end of the fixing frame (5) is provided with an insertion rod (51). The support plate (2) is provided with a slot (23) that cooperates with the insertion rod (51).

2. The nozzle cutting device for an injection molding machine according to claim 1, characterized in that: An adjusting component (6) is provided between the rotating rod (3) and the cutter (31), and the adjusting component (6) comprises an adjusting screw (61), an adjusting button (62) and a limiting block (63). The adjusting button (62) is rotationally matched with the rotating rod (3) and is threadedly connected to the adjusting screw (61). The limiting block (63) is fixed in the cavity of the rotating rod (3). One end of the adjusting screw (61) is fixed to the cutter (31), and the other end is located in the rotating rod (3). A limiting groove (64) adapted to the limiting block (63) is provided on the adjusting screw (61).

3. The nozzle cutting device for an injection molding machine according to claim 1, characterized in that: The spring in the elastic telescopic rod (83) is in a compressed state, and the first limiting rod (81) is connected to a height adjustment member (84) for adjusting the height of the first limiting rod (81).

4. The nozzle cutting device for an injection molding machine according to claim 1, characterized in that: A slider (211) is fixed below the motor (21), one side of the slider (211) is in sliding engagement with the support plate (2), and the other end of the slider (211) is connected to a first screw rod (87), which is in rotational engagement with the support plate (2).

5. The nozzle cutting device for an injection molding machine according to claim 1, characterized in that: The upper end of the rotating shaft (22) is rotatably connected to the support plate (2) and is used to rotate the fixing frame (5) to the other side of the support plate (2).

6. The nozzle cutting device for an injection molding machine according to claim 5, characterized in that: Both ends of the fixing frame (5) do not exceed the width range of the support plate (2), and the width of the support plate (2) is less than half of its length.

7. The nozzle cutting device for an injection molding machine according to claim 1, characterized in that: The fixing frame (5) comprises a fixed portion (54) and a movable portion (55), and a lifting second screw rod (56) is provided between the movable portion (55) and the fixed portion (54) for adjusting the retraction and extension of the movable portion (55).

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