Injection molding machine capable of automatically cutting off water gap

Abstract

The utility model discloses an injection molding machine capable of automatically cutting off a water gap. The injection molding machine comprises an injection molding machine body, a three-axis moving mechanism, a first suction cup, a cooling turntable, a multi-axis mechanical arm, a second suction cup and a water gap punching device, the three-axis moving mechanism is used for driving the first suction cup to move between the injection molding machine body and the cooling rotary disc, the multi-axis mechanical arm is arranged between the water gap punching device and the cooling rotary disc, and the multi-axis mechanical arm is connected with the second suction cup so as to be used for sucking plastic workpieces on the cooling rotary disc into the water gap punching device. The cooling rotary table can cool a plastic workpiece, deformation of the plastic workpiece caused by insufficient hardening during water gap cutting operation is prevented, the punching air cylinder of the water gap punching device can drive the lifting plate to ascend and descend so as to drive the punching cutter to be aligned with a water gap punching hole, and a water gap in the plastic workpiece is cut off. And the whole material taking, cooling and punching processes are automatically carried out, so that the complexity of manual operation is avoided, and the production efficiency of products is improved.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, and particularly relates to an injection molding machine capable of automatically cutting off sprues. Background Art

[0002] In the injection molding process, plastic workpieces usually have one or more sprues after molding. These sprues are channels set for filling the mold cavity during the injection process. However, after molding, they will remain on the plastic workpieces and need to be cut off.

[0003] In the prior art, traditional sprue cutting methods mainly rely on manual operation, which is not only inefficient, but also the quality of sprue cutting varies, affecting the accuracy of products. There are some injection molding devices on the market that can automatically cut off sprues. They cut off the sprues after taking out the plastic products. However, the plastic workpieces just taken out from the mold are in a high-temperature state and the material is relatively soft. If the sprues are cut off in this state, the plastic workpieces are likely to deform, thus affecting the production quality of products.

[0004] Therefore, there are defects in the prior art and improvement is needed. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an injection molding machine capable of automatically cutting off sprues, which can effectively improve production efficiency and is not easy to deform.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: An injection molding machine capable of automatically cutting off sprues includes an injection molding machine body, a three-axis moving mechanism, a first suction cup, a cooling turntable, a multi-axis robotic arm, a second suction cup, and a sprue punching device;

[0007] The three-axis moving mechanism is arranged on the injection molding machine body, the cooling turntable is arranged at the side end of the injection molding machine body, and the first suction cup is connected with the three-axis moving mechanism;

[0008] The three-axis moving mechanism is used to drive the first suction cup to move between the injection molding machine body and the cooling turntable. The first suction cup is used to adsorb or release the plastic workpieces produced by the injection molding machine body. The cooling turntable is used to cool the plastic workpieces;

[0009] The sprue punching device is arranged at the side end of the cooling turntable. The multi-axis robotic arm is arranged between the sprue punching device and the cooling turntable, and the multi-axis robotic arm is connected with the second suction cup to be used for sucking the plastic workpieces on the cooling turntable into the sprue punching device;

[0010] The gate punching device includes a box body, a support frame, a punching cylinder, a first loading plate, a lifting plate and a punching knife. The support frame is arranged inside the box body. The punching cylinder is arranged on the top of the support frame, and the movable end of the punching cylinder is arranged downward and connected to the lifting plate. The punching cylinder is used to drive the lifting plate to move up and down.

[0011] A plurality of the punching knives are arranged at the bottom of the lifting plate. The first loading plate is arranged on the box body below the punching knives. The first loading plate is used to position and carry the plastic workpiece to be gate punched. A gate punching hole is arranged at the gate of the plastic workpiece on the first loading plate. The punching knife is used to punch and cut the gate on the plastic workpiece as the lifting plate moves.

[0012] Adopting the above technical solution, in the injection molding machine capable of automatically removing the gate, a gate collection box is arranged inside the box body below the first loading plate.

[0013] Adopting each of the above technical solutions, in the injection molding machine capable of automatically removing the gate, the cooling turntable includes a rotation driving mechanism, a rotating disk, a second loading plate and a cooling fan.

[0014] Four of the second loading plates are respectively arranged at equal intervals along the circumferential direction of the rotating disk. The rotation driving mechanism is connected to the second loading plate to drive the rotating disk to rotate.

[0015] The second loading plate is used to carry the plastic workpiece. Two of the cooling fans are respectively arranged above two of the second loading plates. The cooling fan is used to perform convective cooling on the plastic workpiece on the second loading plate.

[0016] Adopting each of the above technical solutions, in the injection molding machine capable of automatically removing the gate, positioning grooves are respectively arranged on the first loading plate and the second loading plate. The positioning grooves are used to position and place the plastic workpiece.

[0017] Adopting each of the above technical solutions, in the injection molding machine capable of automatically removing the gate, the three-axis moving mechanism includes an X-axis moving module, a Y-axis moving module and a Z-axis moving module.

[0018] The X-axis moving module is arranged on the injection molding machine body. The X-axis moving module is connected to the Z-axis moving module through the Y-axis moving module. The Z-axis moving module is connected to the second suction cup.

[0019] Adopting each of the above technical solutions, in the injection molding machine capable of automatically removing the gate, the first suction cup and the second suction cup have the same structure, and both include a mounting plate, a vacuum suction nozzle and a pressure sensor.

[0020] A plurality of the vacuum suction nozzles and the pressure sensors are arranged on the mounting plate. The vacuum suction nozzles are used for adsorbing plastic workpieces, and the pressure sensors are used for collecting the pressure between the vacuum suction nozzles and the plastic workpieces.

[0021] In the injection molding machine capable of automatically cutting off the sprue by adopting the above various technical solutions, cutting edges are arranged on both sides of the bottom of the punching cutter.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The three-axis moving mechanism of the utility model can drive the first suction cup to move between the injection molding machine body and the cooling turntable, so as to clamp the plastic workpiece into the cooling turntable for cooling and transfer. The cooling turntable can cool the plastic workpiece to prevent the plastic workpiece from deforming during the sprue cutting operation due to insufficient hardening. When the multi-axis robotic arm places the plastic workpiece on the first loading plate through the second suction cup, the punching cylinder can drive the lifting plate to move up and down, so as to drive the punching cutter to align with the sprue punching hole and cut off the sprue on the plastic workpiece. The whole process of material taking, cooling and punching is carried out automatically, saving the tedious manual operation and improving the production efficiency of the product. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0025] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that the present utility model can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the cooling turntable of the present utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the multi-axis robotic arm of the present utility model;

[0029] Figure 4Structural schematic diagram of the gate punching device of the present utility model;

[0030] Figure 5 Structural schematic diagram of the first material loading plate of the present utility model. Specific embodiments

[0031] In order to make the utility model purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present.

[0033] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0034] As Figures 1 to 5 shown, the embodiment of the present utility model provides an injection molding machine capable of automatically cutting off the gate, including an injection molding machine body 1, a three-axis moving mechanism 2, a first suction cup 3, a cooling turntable 4, a multi-axis robotic arm 5, a second suction cup 6, and a gate punching device 7;

[0035] The three-axis moving mechanism 2 is arranged on the injection molding machine body 1. The cooling turntable 4 is arranged at the side end of the injection molding machine body 1. The first suction cup 3 is connected to the three-axis moving mechanism 2. The three-axis moving mechanism 2 is used to drive the first suction cup 3 to move between the injection molding machine body 1 and the cooling turntable 4. The first suction cup 3 is used to adsorb or release the plastic workpieces produced by the injection molding machine body 1. The cooling turntable 4 is used to cool the plastic workpieces. The injection molding machine body 1 is equipped with a heating device, which can heat and melt the plastic raw materials to form a molten plastic fluid and solidify and form in the mold to obtain plastic workpieces. The three-axis moving mechanism 2 can drive the first suction cup 3 to move between the injection molding machine body 1 and the cooling turntable 4 to clamp the plastic workpieces into the cooling turntable 4 for cooling and transfer, so as to quickly reduce the temperature of the plastic workpieces and make them harden, facilitating the subsequent gate cutting operation.

[0036] The gate punching device 7 is arranged at the side end of the cooling turntable 4. The multi-axis robotic arm 5 is arranged between the gate punching device 7 and the cooling turntable 4, and the multi-axis robotic arm 5 is connected to the second suction cup 6 to suck the plastic workpieces on the cooling turntable 4 into the gate punching device 7. The second suction cup 6 can adsorb and transfer the plastic workpieces that have completed cooling and hardening into the gate punching device 7, and the gate punching device 7 can punch and remove the gates on the plastic workpieces.

[0037] The gate punching device 7 includes a box body 71, a support frame 72, a punching cylinder 73, a first loading plate 74, a lifting plate 75 and a punching knife 76. The support frame 72 is arranged inside the box body 71. The punching cylinder 73 is arranged at the top of the support frame 72, and the movable end of the punching cylinder 73 is arranged downward and connected to the lifting plate 75. The punching cylinder 73 is used to drive the lifting plate 75 to move up and down. A plurality of the punching knives 76 are arranged at the bottom of the lifting plate 75. The first loading plate 74 is arranged on the box body 71 below the punching knives 76. The first loading plate 74 is used to position and carry the plastic workpieces to be gate punched. A gate punching hole 740 is arranged at the gate position of the plastic workpieces on the first loading plate 74. The punching knives 76 are used to punch and cut the gates on the plastic workpieces as the lifting plate 75 moves. When the multi-axis robotic arm 5 places the plastic workpieces on the first loading plate 74 through the second suction cup 6, the punching cylinder 73 can drive the lifting plate 75 to move up and down to drive the punching knives 76 to align with the gate punching hole 740 and cut off the gates on the plastic workpieces. It should be noted that guide rods for the up and down movement of the lifting plate 75 are arranged on the support frame 72, and the lifting plate 75 is connected to the guide rods through sliding bearings, thereby improving the lifting stability of the lifting plate 75.

[0038] As Figure 1As shown, further, a sprue collection box (not shown) is provided in the box body 71 below the first material loading plate 74. The sprue collection box can centrally collect sprue waste, avoiding frequent shutdowns by operators to clean up scattered sprue waste.

[0039] As Figure 1 and Figure 2 shown, further, the cooling turntable 4 includes a rotation driving mechanism 41, a rotating disk 42, a second material loading plate 43, and cooling fans 44. The four second material loading plates 43 are respectively arranged at equal intervals along the circumferential direction of the rotating disk 42. The rotation driving mechanism 41 is connected to the second material loading plate 43 for driving the rotating disk 42 to rotate. The second material loading plate 43 is used to carry plastic workpieces. Two of the cooling fans 44 are respectively arranged above two of the second material loading plates 43. The cooling fans 44 are used to perform convective cooling on the plastic workpieces on the second material loading plates 43. The cooling fans 44 can generate airflows to effectively take away the heat on the surface of the plastic workpieces, preventing the plastic workpieces from deforming during the sprue cutting operation due to insufficient hardening. By arranging the four second material loading plates 43 at equal intervals in the circumferential direction of the rotating disk 42, under the rotation of the rotating disk 42, the plastic workpieces can evenly contact the airflows provided by the cooling fans 44, thereby achieving uniform cooling.

[0040] As Figure 5 shown, further, positioning grooves 700 are respectively provided on the first material loading plate 74 and the second material loading plate 43. The positioning grooves 700 are used for positioning and placing plastic workpieces. The setting of the positioning grooves 700 can improve the placement stability of the plastic workpieces on the first material loading plate 74 or the second material loading plate 43, avoiding sliding or offset of the plastic workpieces.

[0041] As Figure 1 shown, further, the three-axis moving mechanism 2 includes an X-axis moving module 21, a Y-axis moving module 22, and a Z-axis moving module 23. The X-axis moving module 21 is provided on the injection molding machine body 1. The X-axis moving module 21 is connected to the Z-axis moving module 23 through the Y-axis moving module 22. The Z-axis moving module 23 is connected to the second suction cup 6. The X-axis moving module 21, the Y-axis moving module 22, and the Z-axis moving module 23 can respectively drive the second suction cup 6 to move in the X-axis, Y-axis, and Z-axis directions to achieve high-precision picking and placing operations.

[0042] As Figure 3As shown, further, the first suction cup 3 and the second suction cup 6 have the same structure, both including a mounting plate 61, a vacuum suction nozzle 62 and a pressure sensor 63. A plurality of the vacuum suction nozzles 62 and the pressure sensors 63 are arranged on the mounting plate 61. The vacuum suction nozzle 62 is used for adsorbing plastic workpieces, and the pressure sensor 63 is used for collecting the pressure between the vacuum suction nozzle 62 and the plastic workpiece.

[0043] As Figure 4 shown, further, cutting edges 761 are provided on both sides of the bottom of the punching cutter 76. With such a setting, when the punching cutter 76 presses down, it can cut the sprue of the plastic workpiece, avoiding the unbalanced cutting force caused by a single-sided cutting edge, thereby improving the cutting accuracy and making the cutting surface of the plastic workpiece neat and smooth.

[0044] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An injection molding machine capable of automatically cutting off a water nozzle, characterized in that: It includes an injection molding machine body, a three-axis moving mechanism, a first suction cup, a cooling turntable, a multi-axis mechanical arm, a second suction cup and a nozzle punching device; The three-axis moving mechanism is arranged on the injection molding machine body, the cooling turntable is arranged on the side end of the injection molding machine body, and the first suction cup is connected to the three-axis moving mechanism; The three-axis moving mechanism is used to drive the first suction cup to move between the injection molding machine body and the cooling turntable, the first suction cup is used to absorb or release the plastic workpiece produced by the injection molding machine body, and the cooling turntable is used to cool the plastic workpiece; The nozzle punching device is arranged at the side end of the cooling turntable, the multi-axis robot arm is arranged between the nozzle punching device and the cooling turntable, and the multi-axis robot arm is connected to the second suction cup to suck the plastic workpiece on the cooling turntable into the nozzle punching device; The nozzle punching device includes a box body, a support frame, a punching cylinder, a first material loading plate, a lifting plate and a punching knife, wherein the support frame is arranged in the box body, the punching cylinder is arranged on the top of the support frame, and the movable end of the punching cylinder is arranged downward and connected to the lifting plate, and the punching cylinder is used to drive the lifting plate to move up and down; Multiple punching knives are arranged at the bottom of the lifting plate, and the first carrier plate is arranged on the box body below the punching knives. The first carrier plate is used to position and carry the plastic workpiece to be punched by the sprue. The first carrier plate is provided with a sprue punching hole at the sprue of the plastic workpiece, and the punching knives are used to punch and cut the sprue on the plastic workpiece as the lifting plate moves.

2. The injection molding machine capable of automatically cutting off the water nozzle according to claim 1, characterized in that: A water inlet collecting box is provided in the box body below the first material carrying plate.

3. The injection molding machine capable of automatically cutting off the water nozzle according to claim 1, characterized in that: The cooling turntable includes a rotation drive mechanism, a rotating disk, a second loading plate and a cooling fan; The four second material carrying plates are respectively arranged at equal intervals along the circumferential direction of the rotating disk, and the rotation driving mechanism is connected to the second material carrying plates to drive the rotating disk to rotate; The second material carrier plate is used for carrying plastic workpieces. The two cooling fans are respectively arranged above two of the second material carrier plates. The cooling fans are used for performing convection cooling on the plastic workpieces on the second material carrier plates.

4. The injection molding machine capable of automatically cutting off the water nozzle according to claim 3, characterized in that: The first material carrier plate and the second material carrier plate are respectively provided with positioning grooves, and the positioning grooves are used for positioning and placing plastic workpieces.

5. The injection molding machine capable of automatically cutting off the water nozzle according to claim 1, characterized in that: The three-axis moving mechanism includes an X-axis moving module, a Y-axis moving module and a Z-axis moving module; The X-axis moving module is arranged on the injection molding machine body, the X-axis moving module is connected to the Z-axis moving module through the Y-axis moving module, and the Z-axis moving module is connected to the second suction cup.

6. The injection molding machine capable of automatically cutting off the water nozzle according to claim 1, characterized in that: The first suction cup has the same structure as the second suction cup, and both include a mounting plate, a vacuum suction nozzle, and a pressure sensor; The plurality of vacuum suction nozzles and the pressure sensors are all arranged on the mounting plate. The vacuum suction nozzle is used for adsorbing the plastic workpiece, and the pressure sensor is used for collecting the pressure between the vacuum suction nozzle and the plastic workpiece.

7. The injection molding machine capable of automatically cutting off the water nozzle according to claim 1, characterized in that: Punching edges are arranged on both sides of the bottom of the punching knife.

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