Discharging mechanism of injection molding machine

Abstract

The invention relates to a discharging mechanism of an injection molding machine, in particular to the discharging mechanism of the injection molding machine, which comprises a machine body and a frame body, the machine body is used for injection molding, the frame body is arranged beside the machine body, and the discharging mechanism of the injection molding machine is characterized in that a discharging table is fixedly arranged on the side wall of the machine body, and a conveying assembly and a material suction assembly are arranged on the frame body; the conveying assembly is used for driving the suction assembly to move between the interior of the machine body and the discharging table. The material suction assembly comprises a fixing plate, a suction cup is arranged on the fixing plate, and the suction cup is used for communicating with an air pump to suck products; the conveying assembly comprises a vertical unit, the fixing plate is rotationally connected to the vertical unit, the vertical unit is used for driving the fixing plate to move in the vertical direction, an air cylinder used for driving the fixing plate to rotate is further arranged at the rotating connecting position of the fixing plate, and the fixing plate can rotate to the angle perpendicular to the ground and the angle parallel to the discharging table. The universality is improved, meanwhile, the situation of product damage is reduced, automatic discharging can be achieved to a certain degree, and the convenience degree is further improved.

Description

Technical Field

[0001] The invention relates to a material discharging mechanism for an injection molding machine, in particular to a material discharging mechanism for an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, make it eject and fill the mold cavity, and wait for it to solidify before taking the plastic out.

[0003] Injection molding machines under the existing technology usually use a ejector rod to eject the product from the injection molding machine. Some horizontal injection molding machine products are collected by directly dropping when they are delivered. Products that are easy to break are easily broken during discharge, thus affecting product quality. Therefore, staff are usually required to assist in removing the product, and the overall discharge efficiency will be reduced. Summary of the invention

[0004] In order to solve the problem that some horizontal injection molding machine products in the prior art are collected by directly dropping when they are delivered, and products that are easy to break are easily broken during discharge, thereby affecting product quality. Therefore, staff are usually required to assist in removing the products, and the overall discharge efficiency is reduced. This application provides an injection molding unloading mechanism, and the specific solution is as follows.

[0005] A material unloading mechanism for an injection molding machine comprises a machine body and a frame, wherein the machine body is used for injection molding, the frame is arranged beside the machine body, a material unloading platform is fixedly arranged on the side wall of the machine body, a conveying component and a material suction component are arranged on the frame, and the conveying component is used to drive the material suction component to move between the inside of the machine body and the material unloading platform; The suction assembly includes a fixed plate, on which a suction cup is provided, and the suction cup is used to communicate with an air pump to adsorb the product; the conveying assembly includes a vertical unit, on which the fixed plate is rotatably connected, and the vertical unit is used to drive the fixed plate to move in a vertical direction, and a cylinder for driving the fixed plate to rotate is also provided at the rotating connection of the fixed plate, and the fixed plate can be rotated to an angle perpendicular to the ground and an angle parallel to the unloading table.

[0006] By adopting the above technical solution, a conveying component and a rotatable fixed plate are provided, and the suction cup on the fixed plate can absorb the workpiece and move it to the unloading table. Then, by rotating the fixed plate, the workpiece can be flipped over and placed more stably on the unloading table. Different directions and angles can be selected for different products and injection molding machines to absorb and put down the products, thereby improving versatility while reducing product damage, and being able to automate the unloading to a certain extent, further improving convenience.

[0007] Optionally, a plurality of suction cups are provided on the fixing plate, and the suction cups are arranged at equal intervals along the length direction of the fixing plate, and the suction cups are used to correspond to various parts of the workpiece.

[0008] By adopting the above technical solution and setting up multiple suction cups, multiple parts of the workpiece can be adsorbed at the same time, thereby further improving the stability of the adsorbed product. It is also more stable when adsorbing large products, thereby improving the stability of discharging.

[0009] Optionally, a plurality of mounting plates are further provided on the fixing plate, and the mounting plates are arranged at equal intervals along the length direction of the fixing plate, and the suction cups are installed at both ends of each mounting plate in the length direction.

[0010] By adopting the above technical solution, multiple mounting plates are set and suction cups are set on both sides, which can not only make the suction cups more stably adsorb the workpiece from two directions, but also make the force on the fixed plate more uniform, thereby improving the stability of use and further improving the service life.

[0011] Optionally, the conveying assembly also includes a transverse unit and a longitudinal unit, the vertical unit is installed on the transverse unit, the transverse unit is installed on the longitudinal unit, the vertical unit can move along the transverse axis of the transverse unit in the horizontal plane, and the transverse unit can move along the longitudinal axis of the longitudinal unit in the horizontal plane.

[0012] By adopting the above technical solution and setting the horizontal unit and the vertical unit to control the horizontal position of the product, the movement of the suction component at various positions can be realized.

[0013] Optionally, a limit rod is provided on the longitudinal unit corresponding to the material suction assembly, the limit rod is provided at a right angle, and the limit rod is used to abut against the material suction assembly.

[0014] By adopting the above technical solution, setting a limit rod can limit the displacement range of the suction component, reduce the situation where the suction component moves out of the unloading platform and causes the product to fall to the ground and be damaged, and further improve the stability of small materials.

[0015] Optionally, a main airway is provided on the fixed plate, and the main airway is used to directly connect to an air pump for suction. A branch airway is provided on the mounting plate corresponding to the main airway, and one end of the branch airway is connected to the main airway, and the other end of the branch airway is connected to the suction cup.

[0016] By adopting the above technical solution, a main air channel and a branch air channel are set, so that multiple suction cups can be sucked at the same time, so that each suction cup can suck the workpiece synchronously, reducing the number of air pumps to be set, reducing costs and making the adsorption more synchronous.

[0017] Optionally, sliding rods are provided at both ends of the mounting plate in the length direction, and protective claws are slidably connected to the sliding rods. The protective claws are bent toward the middle of the fixed plate and are used to support the workpiece. A detection rod is provided between the fixed plate and the protective claws, and the end of the protective claw away from the mounting plate extends into the detection rod and is slidably connected to the detection rod. A detection air channel is provided in the detection rod, and the detection air channel is connected to the main air channel. A spring is also provided between the protective claw and the mounting plate, and the spring has a tendency to push the protective claw to move toward the mounting plate.

[0018] By adopting the above technical solution, a sliding rod and a mounting plate are provided. When suction is performed, the protective claws can move toward both sides, and will not interfere with the workpiece when the workpiece is sucked out, so that the workpiece can be normally adsorbed by the suction cup. After the workpiece is adsorbed, if some suction cups fail or some workpieces fall off, because the air passages are interconnected, air leakage will occur, resulting in the suction force at the protective claws being insufficient to overcome the thrust of the spring. At this time, the protective claws will respond quickly and move toward the mounting plate to support the workpiece, thereby reducing the situation where the workpiece falls in the air and further improving the stability of material unloading.

[0019] Optionally, a spherical protrusion is arranged on the protective claw towards each fixing plate, and when the protective claw moves towards the mounting plate, the spherical protrusion is used to push the workpiece to move towards the suction cup.

[0020] By adopting the above technical solution, a spherical bump is arranged on the protective claw, and the spherical bump can push the workpiece back to the suction cup for adsorption when supporting the workpiece, and the protective claw will be retracted when the suction cup is adsorbed again.

[0021] Optionally, a guide rod is fixedly installed on the unloading platform, and the guide rod is vertically arranged upward. The guide rod is used to abut the protective claw so that the protective claw moves in a direction away from the mounting plate. The guide rod and the mounting plate do not interfere with each other, and the workpiece can move downward along the guide rod to the unloading platform.

[0022] By adopting the above technical scheme, when unloading, the protective claw can be matched with the guide rod, thereby limiting the movement of the protective claw toward the mounting plate and affecting the normal unloading of the workpiece, reducing the interference between the protective claw and the workpiece, and at the same time can guide the workpiece so that the workpiece can be stacked along the guide rod to the same position, further improving the convenience of sorting during unloading and further improving the unloading efficiency.

[0023] In summary, this application has at least the following beneficial effects: 1. The present application solves the problem that some horizontal injection molding machine products in the prior art are collected by directly dropping when being delivered, and products that are easy to break are easily broken during discharge, thus affecting product quality. Therefore, staff are usually required to assist in taking out the products, and the overall discharge efficiency is reduced. The present application provides a flippable suction component, and the rotation angle of the suction component can be selected according to the shape of the workpiece and the type of injection molding machine, thereby improving versatility and replacing manual discharge, thereby improving discharge efficiency.

[0024] 2. The present application also uses a protective claw, which can determine whether the suction cup fails. When the suction cup fails, the protective claw responds quickly and moves toward one side of the workpiece to support the workpiece, thereby reducing the possibility of the workpiece falling from the air during transportation and further improving the stability of material unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the first embodiment.

[0026] Figure 2 It is a stereoscopic diagram of the suction assembly in the first embodiment.

[0027] Figure 3 It is a three-dimensional diagram of the conveying assembly in the first embodiment.

[0028] Figure 4 It is a cross-sectional view of the suction assembly in the first embodiment.

[0029] Figure 5 It is a cross-sectional view of the material suction assembly and the material discharge platform in the second embodiment.

[0030] Description of reference numerals: 1. Machine body; 11. Unloading table; 111. Guide rod; 2. Frame; 21. Vertical unit; 22. Horizontal unit; 23. Longitudinal unit; 24. Limit rod; 3. Fixing plate; 31. Suction cup; 32. Mounting plate; 321. Branch airway; 33. Main airway; 34. Sliding rod; 35. Protective claw; 351. Spherical bump; 36. Detection rod; 361. Detection airway; 37. Spring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0032] Embodiment 1 A material discharging mechanism for an injection molding machine, such as Figure 1 and Figure 2As shown, it includes a body 1 and a frame 2. The body 1 is used for injection molding. The frame 2 is arranged beside the body 1. A material unloading platform 11 is fixedly arranged on the side wall of the body 1. A conveying component and a material suction component are arranged on the frame 2. The conveying component is used to drive the material suction component to move between the inside of the body 1 and the material unloading platform 11. The material suction component includes a fixed plate 3. A suction cup 31 is arranged on the fixed plate 3. The suction cup 31 is used to connect with an air pump to absorb the product. The conveying component includes a vertical unit 21. The fixed plate 3 is rotatably connected to the vertical unit 21. The vertical unit 21 is used to drive the fixed plate 3 to move in the vertical direction. A cylinder for driving the fixed plate 3 to rotate is also arranged at the rotating connection of the fixed plate 3. The fixed plate 3 can rotate to an angle perpendicular to the ground and an angle parallel to the material unloading platform 11. During specific implementation, an opening is provided on the machine body 1 corresponding to the suction component. The suction component can extend into the machine body 1 under the drive of the conveying component to suck out the product. After sucking out the workpiece, the suction component is moved to the unloading table 11 and the suction cup 31 is released, and the product can be put down, thereby realizing the unloading of the product. The fixed plate 3 can be rotated according to the shape of the machine body 1 and the product, so that the fixed plate 3 can accurately adsorb and discharge the workpiece. The machine body 1 in this embodiment is closed in all directions in the form of sliding doors, which further improves the safety during processing.

[0033] like Figure 1 and Figure 2 As shown, a plurality of suction cups 31 are arranged on the fixing plate 3, and the suction cups 31 are arranged at equal intervals along the length direction of the fixing plate 3, and the suction cups 31 are used to correspond to various parts of the workpiece. In specific implementation, the suction cups 31 can suck air through an air pump to form a pressure difference at the suction cups 31 to adsorb the product. Since some products are composed of multiple workpieces, there are some plastic connections between the workpieces to be cut off after being sold. Therefore, when adsorbing such products, the multiple suction cups 31 can adsorb multiple workpieces at the same time, thereby further improving the stability of the adsorbed products.

[0034] like Figure 2 As shown, the fixing plate 3 is further provided with a plurality of mounting plates 32, which are arranged at equal intervals along the length direction of the fixing plate 3, and the suction cups 31 are installed at both ends of the length direction of each mounting plate 32. In specific implementation, the length direction of the mounting plate 32 is parallel to the width direction of the fixing plate 3. In this embodiment, four mounting plates 32 are provided, and a total of eight suction cups 31 are provided on the mounting plates 32.

[0035] like Figure 1 and Figure 3As shown, the conveying assembly also includes a transverse unit 22 and a longitudinal unit 23. The vertical unit 21 is mounted on the transverse unit 22, and the transverse unit 22 is mounted on the longitudinal unit 23. The vertical unit 21 can move along the transverse axis of the transverse unit 22 in the horizontal plane, and the transverse unit 22 can move along the longitudinal axis of the longitudinal unit 23 in the horizontal plane. In specific implementation, the vertical unit 21, the transverse unit 22, and the longitudinal unit 23 in this embodiment are all driven by electric cylinders. The electric cylinders have fast response speed and high response accuracy, and can move the suction assembly more quickly and more accurately. In other embodiments, the vertical unit 21, the transverse unit 22, and the longitudinal unit 23 can also be moved by air cylinders or oil cylinders. The air cylinders have fast response speed and high precision, and the oil cylinders have sufficient power.

[0036] like Figure 1 and Figure 3 As shown, a limit rod 24 is provided on the longitudinal unit 23 corresponding to the material suction assembly, and the limit rod 24 is provided at a right angle, and the limit rod 24 is used to abut the material suction assembly. In specific implementation, the limit rod 24 is fixedly connected to the longitudinal unit 23 and is provided at a position close to the unloading platform 11, which can just limit the movement range of the material suction assembly within the unloading platform 11, reduce the situation where the product is moved outside the unloading platform 11 when the material suction assembly moves, causing damage to the product, and further improve the accuracy of unloading.

[0037] like Figure 4 As shown, the fixing plate 3 is provided with a main airway 33, which is used to be directly connected to an air pump for suction, and the mounting plate 32 is provided with a branch airway 321 corresponding to the main airway 33, one end of the branch airway 321 is connected to the main airway 33, and the other end of the branch airway 321 is connected to the suction cup 31. In specific implementation, the air pump can suction each branch airway 321 by connecting to the main airway 33, and each branch airway 321 can be suctioned at the same time by one air pump, so that each suction cup 31 can adsorb the workpiece.

[0038] Working principle: According to the shape and type of the machine body 1, as well as the shape of the workpiece, the suction cup 31 can be aligned with the product for adsorption by rotating the fixed plate 3, so that the fixed plate 3 can be more accurately aligned with the product for discharging, and the discharging can be performed automatically, further improving the accuracy and convenience of discharging.

[0039] Embodiment 2 like Figure 5As shown, the difference between Example 2 and Example 1 is that in Example 2, sliding rods 34 are provided at both ends of the mounting plate 32 in the length direction, and a protective claw 35 is slidably connected to the sliding rod 34. The protective claw 35 is bent toward the middle of the fixed plate 3 and is used to support the workpiece. A detection rod 36 is provided between the fixed plate 3 and the protective claw 35. The end of the protective claw 35 away from the mounting plate 32 extends into the detection rod 36 and is slidably connected to the detection rod 36. A detection air channel 361 is provided in the detection rod 36, and the detection air channel 361 is connected to the main air channel 33. A spring 37 is also provided between the protective claw 35 and the mounting plate 32, and the spring 37 has a tendency to push the protective claw 35 to move toward the mounting plate 32. In specific implementation, the protective claws 35 are slidingly connected to each fixed plate 3 and are each provided with a corresponding spring 37. When the workpiece is taken out, the suction cup 31 is started to open the protective claws 35, and the workpiece can be sucked up normally. When the suction cup 31 fails after the fixed plate 3 is flipped over, the detection rod 36 of the protective claw 35 can also detect the failure of the suction cup 31 and the occurrence of air leakage. At this time, the suction at the detection rod 36 can no longer overcome the pulling force of the spring 37. At this time, the protective claws 35 can respond quickly, thereby moving toward the fixed plate 3, thereby supporting the workpiece, reducing the possibility of product falling off, and improving the stability during the unloading process.

[0040] like Figure 5 As shown, a spherical bump 351 is arranged on the protective claw 35 toward each fixing plate 3, and when the protective claw 35 moves toward the mounting plate 32, the spherical bump 351 is used to push the workpiece toward the suction cup 31. In specific implementation, the spherical bump 351 can push the product upwards to be sucked by the suction cup 31 again in response, so that the product can be repaired again, further improving the stability of material feeding.

[0041] like Figure 5 As shown, a guide rod 111 is fixedly provided on the unloading platform 11, and the guide rod 111 is vertically arranged upward. The guide rod 111 is used to abut the protective claw 35 so that the protective claw 35 moves in a direction away from the mounting plate 32. The guide rod 111 and the mounting plate 32 do not interfere with each other, and the workpiece can move downward along the guide rod 111 to the unloading platform 11. In specific implementation, the products can be stacked along the guide rod 111 during unloading, and the guide rod 111 can also push the protective claw 35 in a direction away from the mounting plate 32 during unloading, so as to reduce the situation where the protective claw 35 affects the unloading.

[0042] Working principle: The basic working principle is the same as that of the first embodiment, but by providing a protective claw 35 capable of supporting the workpiece, when the workpiece is transported in the air, when the suction cup 31 fails, the protective claw 35 can respond quickly to support the workpiece and lift the workpiece back toward the workpiece, thereby further improving the stability during the unloading process and allowing the workpiece to be unloaded more stably.

[0043] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A material discharging mechanism for an injection molding machine, comprising a machine body (1) and a frame (2), wherein the machine body (1) is used for injection molding, and the frame (2) is arranged beside the machine body (1), characterized in that: A material unloading platform (11) is fixedly arranged on the side wall of the machine body (1), and a conveying component and a material suction component are arranged on the frame body (2), wherein the conveying component is used to drive the material suction component to move between the inside of the machine body (1) and the material unloading platform (11); The material suction assembly comprises a fixing plate (3), on which a suction cup (31) is arranged, and the suction cup (31) is used to communicate with an air pump to absorb the product; The conveying assembly comprises a vertical unit (21), the fixed plate (3) is rotatably connected to the vertical unit (21), the vertical unit (21) is used to drive the fixed plate (3) to move in the vertical direction, and a cylinder for driving the fixed plate (3) to rotate is also provided at the rotation connection of the fixed plate (3), and the fixed plate (3) can be rotated to an angle perpendicular to the ground and an angle parallel to the unloading platform (11).

2. The unloading mechanism of an injection molding machine according to claim 1, characterized in that: A plurality of suction cups (31) are arranged on the fixing plate (3), and the suction cups (31) are arranged at equal intervals along the length direction of the fixing plate (3), and the suction cups (31) are used to correspond to various parts of the workpiece.

3. The unloading mechanism of an injection molding machine according to claim 2, characterized in that: A plurality of mounting plates (32) are also arranged on the fixing plate (3), and the mounting plates (32) are arranged at equal intervals along the length direction of the fixing plate (3), and the suction cups (31) are mounted at both ends of each mounting plate (32) in the length direction.

4. The unloading mechanism of an injection molding machine according to claim 1, characterized in that: The conveying assembly further comprises a transverse unit (22) and a longitudinal unit (23); the vertical unit (21) is mounted on the transverse unit (22), and the transverse unit (22) is mounted on the longitudinal unit (23); the vertical unit (21) is capable of moving along the transverse axis of the transverse unit (22) in a horizontal plane, and the transverse unit (22) is capable of moving along the longitudinal axis of the longitudinal unit (23) in a horizontal plane.

5. The unloading mechanism of an injection molding machine according to claim 4, characterized in that: A limiting rod (24) is arranged on the longitudinal unit (23) corresponding to the material suction assembly. The limiting rod (24) is arranged at a right angle and is used to abut against the material suction assembly.

6. The unloading mechanism of an injection molding machine according to claim 3, characterized in that: The fixing plate (3) is provided with a main air channel (33), and the main air channel (33) is used to be directly connected to an air pump for suction. The mounting plate (32) is provided with a branch air channel (321) corresponding to the main air channel (33), one end of the branch air channel (321) is connected to the main air channel (33), and the other end of the branch air channel (321) is connected to the suction cup (31).

7. The unloading mechanism of an injection molding machine according to claim 6, characterized in that: Both ends of the mounting plate (32) in the length direction are provided with sliding rods (34), and a protective claw (35) is slidably connected to the sliding rod (34). The protective claw (35) is bent toward the middle of the fixed plate (3) and is used to support the workpiece. A detection rod (36) is provided between the fixed plate (3) and the protective claw (35). One end of the protective claw (35) away from the mounting plate (32) extends into the detection rod (36) and is slidably connected to the detection rod (36). A detection airway (361) is provided in the detection rod (36), and the detection airway (361) is connected to the main airway (33). A spring (37) is also provided between the protective claw (35) and the mounting plate (32), and the spring (37) has a tendency to push the protective claw (35) to move toward the mounting plate (32).

8. The unloading mechanism of an injection molding machine according to claim 7, characterized in that: The protective claw (35) is provided with a spherical protrusion (351) facing each fixing plate (3); when the protective claw (35) moves toward the mounting plate (32), the spherical protrusion (351) is used to push the workpiece to move toward the suction cup (31).

9. The unloading mechanism of an injection molding machine according to claim 7, characterized in that: A guide rod (111) is also fixedly arranged on the unloading platform (11). The guide rod (111) is arranged vertically upwards. The guide rod (111) is used to abut against the protective claw (35) so that the protective claw (35) moves in a direction away from the mounting plate (32). The guide rod (111) and the mounting plate (32) do not interfere with each other, and the workpiece can move downward along the guide rod (111) to the unloading platform (11).

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