Three-station forming machine facilitating discharging

Abstract

The utility model discloses a three-station forming machine facilitating discharging. The three-station forming machine comprises a workbench, a discharging mechanism and a supporting column. A mounting groove is formed in the upper end in the workbench, a rotating shaft is rotationally connected between the upper inner wall and the lower inner wall of the mounting groove, the top end of the rotating shaft extends out of the upper surface of the workbench and is fixedly connected with a rotating disc, and three lower die holders are mounted on the upper surface of the rotating disc through bolts; the number of the discharging mechanisms is three, and the three discharging mechanisms are arranged in the rotating disc correspondingly and installed with the adjacent lower die bases in a matched mode; the number of the supporting columns is four, and the middle portions among the four supporting columns are connected with the four corners of a lower pressing plate in a sliding mode, according to the three-station forming machine convenient to discharge, workpieces are ejected out more rapidly and accurately, dependence on operators is reduced, the discharging process of the three-station forming machine is more automatic, the working efficiency is improved, and the working efficiency is improved. And the requirements of high productivity and high efficiency can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and particularly relates to a three-station molding machine convenient for discharging materials. Background Technique

[0002] An injection molding machine is a process of injecting molten plastic into a mold under high pressure and forming the required parts after cooling. The three-station injection molding machine can perform operations in different stages such as injection molding, cooling, and mold opening simultaneously through a multi-station design, thereby optimizing the production process. However, a reasonably designed discharging mechanism can reduce the physical damage or deformation of workpieces during the taking-out process and ensure the consistency and quality of products.

[0003] In a traditional three-station molding machine convenient for discharging materials, usually after the molding cycle is completed, the mold will be fully opened, and the operator uses a specially designed picking tool to clamp the workpiece and take it out of the mold.

[0004] The traditional three-station molding machine convenient for discharging materials has the following problems: relying on the operator to manually operate the picking tool increases the labor cost and labor intensity, especially in the case of mass production. Moreover, the operation speed of the operator is limited and may not meet the requirements of high-efficiency production. For this reason, we propose a three-station molding machine convenient for discharging materials. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a three-station molding machine convenient for discharging materials. By ejecting the workpiece more quickly and precisely, the dependence on the operator is reduced, the discharging process of the three-station molding machine is made more automated, and it can better meet the requirements of high production capacity and high efficiency, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A three-station molding machine convenient for discharging materials, including a workbench, a discharging mechanism, and support columns;

[0007] Workbench: An installation groove is opened at the upper end of its interior. A rotating shaft is rotatably connected between the upper and lower inner walls of the installation groove. The top end of the rotating shaft extends to the outside of the upper surface of the workbench. A turntable is fixedly connected to the top end of the rotating shaft. Three lower mold bases are installed on the upper surface of the turntable through bolts;

[0008] Discharging mechanism: The number of the discharging mechanisms is three. The three discharging mechanisms are respectively arranged inside the turntable, and the discharging mechanisms are respectively installed in cooperation with the adjacent lower mold bases;

[0009] Support columns: There are four of them. The middle parts between the four support columns are all slidably connected to the four corners of a lower pressing plate. The middle part of the lower surface of the lower pressing plate is installed with an upper die base through bolts. The middle part of the upper surface of the lower pressing plate is provided with an injection cylinder. The injection port of the injection cylinder is communicated with the liquid inlet of the lower die base. The upper die base is installed in cooperation with the vertically adjacent lower die base. By ejecting the workpiece more quickly and precisely, the dependence on operators is reduced, making the discharging process of the three-station molding machine more automated and better meeting the requirements of high production capacity and high efficiency.

[0010] Further, it also includes a single-chip microcomputer, which is arranged at the right end of the front side of the workbench. The input end of the single-chip microcomputer is electrically connected to an external power supply, facilitating the control of the operation of each electrical appliance.

[0011] Further, it also includes a delivery pipe, which is fixedly connected to the liquid inlet at the right end of the outer surface of the injection cylinder. The top end of the delivery pipe is fixedly connected with a liquid inlet hopper, facilitating the storage of molten plastic.

[0012] Further, it also includes a mounting plate, which is fixedly connected to the upper ends between the four support columns. The middle part of the upper surface of the mounting plate is provided with a hydraulic push rod. The telescopic end of the hydraulic push rod is fixedly connected to the injection end of the injection cylinder. The input end of the hydraulic push rod is electrically connected to the output end of the single-chip microcomputer to achieve injection molding.

[0013] Further, the discharging mechanism includes a sliding frame, a chute, an ejecting column and a sliding hole. There are three chutes, which are respectively opened inside the turntable. The inner walls of the chutes are all slidably connected with a sliding frame. The middle parts of the sliding frames are all fixedly connected with an ejecting column. The sliding holes are all opened on the upper surface of the turntable. The sliding holes are all communicated with the vertically adjacent chutes. The top ends of the sliding holes extend into the vertically adjacent lower die base. The inner walls of the sliding holes are all slidably connected with the upper ends of the vertically adjacent ejecting columns, enabling the workpiece to be ejected more quickly and precisely.

[0014] Further, the discharging mechanism also includes a spring, a limiting block and a pressing column. The limiting blocks are all fixedly connected to the top ends of the sliding frames. Springs are fixedly connected between the lower surfaces of the limiting blocks and the upper surfaces of the adjacent turntables. The springs are all sleeved on the outer surfaces of the upper ends of the sliding frames. The pressing columns are respectively fixedly connected to the left and right ends of the lower surface of the lower pressing plate. The pressing columns are installed in cooperation with the vertically adjacent limiting blocks, making the discharging process of the three-station molding machine more automated.

[0015] Further, it also includes a driving component, which includes a motor, a worm and a worm gear. The motor is installed on the bottom wall at the rear end of the installation groove through bolts. The front end of the output shaft of the motor is fixedly connected with a worm. The worm gear is fixedly sleeved on the lower end of the rotating shaft. The worm gear is meshed with the worm. The input end of the motor is electrically connected to the output end of the single-chip microcomputer to drive the conversion of workstations.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The three-station molding machine facilitating discharging has the following advantages:

[0017] When the lower platen moves downward, it drives the pressure column to contact the vertically adjacent limiting block and apply pressure, causing the limiting block to move downward along the inner wall of the sliding groove. At the same time, the pressure also compresses the spring and compresses the ejector post inside the sliding hole. Once the mold is completely closed, the hydraulic push rod continues to push the injection end of the injection cylinder, and the liquid pushes the preheated plastic through the injection cylinder into the cavity where the upper mold base and the vertically adjacent lower mold base fit perfectly. After filling, the operation of the hydraulic push rod is regulated by the single-chip microcomputer. The telescopic end of the hydraulic push rod drives the upper mold base to separate from the vertically adjacent lower mold base. At this time, the extrusion between the pressure column and the vertically adjacent limiting block is released, and the elastic potential energy stored in the spring is released. The release of the spring pushes the sliding frame to rebound along the inner wall of the sliding groove, ejecting the ejector post into the lower mold base, so that the formed workpiece is ejected from the lower mold base, thereby reducing the dependence on operators and making the discharging process of the three-station molding machine more automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the front side cross-section of the present utility model;

[0020] Figure 3 is a schematic enlarged structural diagram of part A of the present utility model.

[0021] In the figure: 1 workbench, 2 single-chip microcomputer, 3 lower mold base, 4 discharging mechanism, 41 spring, 42 sliding frame, 43 limiting block, 44 sliding groove, 45 ejector post, 46 sliding hole, 47 pressure column, 5 turntable, 6 lower platen, 7 injection cylinder, 8 support column, 9 mounting plate, 10 hydraulic push rod, 11 liquid storage hopper, 12 conveying pipe, 13 mounting groove, 14 rotating shaft, 15 driving assembly, 151 motor, 152 worm, 153 worm gear, 16 upper mold base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 3 , this embodiment provides a technical solution: A three-station molding machine facilitating discharging, including a workbench 1, a discharging mechanism 4 and a support column 8;

[0024] Workbench 1: An installation groove 13 is formed at the upper end inside it. A rotating shaft 14 is rotatably connected between the upper and lower inner walls of the installation groove 13. The top end of the rotating shaft 14 extends outside the upper surface of the workbench 1. A turntable 5 is fixedly connected to the top end of the rotating shaft 14. Three lower die seats 3 are installed on the upper surface of the turntable 5 by bolts. It also includes a single-chip microcomputer 2, which is arranged at the right end of the front side of the workbench 1. The input end of the single-chip microcomputer 2 is electrically connected to an external power supply. It further includes a driving component 15, and the driving component 15 includes a motor 151, a worm 152 and a worm gear 153. The motor 151 is installed on the rear end of the bottom wall of the installation groove 13 by bolts. The front end of the output shaft of the motor 151 is fixedly connected to the worm 152. The worm gear 153 is fixedly sleeved on the lower end of the rotating shaft 14. The worm gear 153 is meshed with the worm 152. The input end of the motor 151 is electrically connected to the output end of the single-chip microcomputer 2. After the workpiece, the single-chip microcomputer 2 controls the operation of the motor 151. The rotation of the output shaft of the motor 151 drives the worm 152 to rotate. The worm 152 meshes and rotates with the worm gear 153, causing the rotating shaft 14 to start rotating. The rotation of the rotating shaft 14 drives the turntable 5 to rotate. The turntable 5 drives the lower die seat 3 at the next working station to rotate to a position corresponding to the upper die seat 16 up and down for injection molding at the next working station;

[0025] Discharging mechanism 4: There are three of them, and the three discharging mechanisms 4 are respectively arranged inside the turntable 5. The discharging mechanisms 4 are all installed in cooperation with the adjacent lower die holder 3. The discharging mechanism 4 includes a sliding frame 42, a chute 44, an ejector post 45 and a sliding hole 46. There are three chutes 44, and the three chutes 44 are respectively opened inside the turntable 5. The inner walls of the chutes 44 are all slidably connected with a sliding frame 42. The middle parts of the sliding frames 42 are all fixedly connected with an ejector post 45. The sliding holes 46 are all opened on the upper surface of the turntable 5. The sliding holes 46 are all communicated with the vertically adjacent chutes 44. The top ends of the sliding holes 46 extend into the adjacent lower die holder 3. The inner walls of the sliding holes 46 are all slidably connected with the upper ends of the vertically adjacent ejector posts 45. The discharging mechanism 4 further includes a spring 41, a limiting block 43 and a pressing column 47. The limiting blocks 43 are all fixedly connected to the top ends of the sliding frames 42. A spring 41 is fixedly connected between the lower surface of the limiting block 43 and the upper surface of the adjacent turntable 5. The spring 41 is sleeved on the outer surface of the upper end of the sliding frame 42. The pressing columns 47 are respectively fixedly connected to the left and right ends of the lower surface of the lower pressing plate 6. The pressing columns 47 are installed in cooperation with the vertically adjacent limiting blocks 43. When the lower pressing plate 6 moves downward, it will drive the pressing column 47 to contact the vertically adjacent limiting block 43 and apply pressure, so that the limiting block 43 moves downward along the inner wall of the chute 44. At the same time, the pressure will also compress the spring 41 and compress the ejector post 45 inside the sliding hole 46. At this time, the extrusion between the pressing column 47 and the vertically adjacent limiting block 43 is released, and the elastic potential energy stored in the spring 41 is released. The release of the spring 41 pushes the sliding frame 42 to rebound along the inner wall of the chute 44, and the ejector post 45 is ejected into the lower die holder 3, so that the formed workpiece is ejected from the lower die holder 3, thereby reducing the dependence on operators and making the whole discharging process more automated;

[0026] Support columns 8: There are four of them. The middle parts between the four support columns 8 are all slidably connected to the four corners of a lower pressing plate 6. The middle part of the lower surface of the lower pressing plate 6 is installed with an upper die base 16 through bolts. The middle part of the upper surface of the lower pressing plate 6 is provided with an injection cylinder 7. The injection port of the injection cylinder 7 is communicated with the liquid inlet of the lower die base 3. The upper die base 16 is cooperatively installed with the vertically adjacent lower die base 3. It also includes a delivery pipe 12. The delivery pipe 12 is fixedly connected to the liquid inlet at the right end of the outer surface of the injection cylinder 7. The top end of the delivery pipe 12 is fixedly connected with a liquid inlet hopper 11. It also includes a mounting plate 9. The mounting plate 9 is fixedly connected to the upper ends between the four support columns 8. The middle part of the upper surface of the mounting plate 9 is provided with a hydraulic push rod 10. The telescopic end of the hydraulic push rod 10 is fixedly connected to the injection end of the injection cylinder 7. The input end of the hydraulic push rod 10 is electrically connected to the output end of the single-chip microcomputer 2. Before injection molding, first, pour the heated plastic into the liquid inlet hopper 11, and it gradually flows into the interior of the injection cylinder 7. Then, control the operation of the hydraulic push rod 10 through the single-chip microcomputer 2. The telescopic end of the hydraulic push rod 10 pushes the injection cylinder 7, so that the injection cylinder 7 drives the lower pressing plate 6 and the upper die base 16 to move downward along the outer surface of the support columns 8 until the upper die base 16 completely fits with the vertically adjacent lower die base 3 to form a whole, ensuring the closing of the mold and the accuracy of the injection space. Once the mold is completely closed, the hydraulic push rod 10 continues to push the injection end of the injection cylinder 7, and the liquid pushes the preheated plastic through the injection cylinder 7 into the cavity where the upper die base 16 completely fits with the vertically adjacent lower die base 3. After filling, control the operation of the hydraulic push rod 10 through the single-chip microcomputer 2, and the telescopic end of the hydraulic push rod 10 drives the upper die base 16 to separate from the vertically adjacent lower die base 3.

[0027] The working principle of a three-station molding machine facilitating discharging provided by the present utility model is as follows: Before injection molding, first, the heated plastic is poured into the liquid inlet hopper 11 and gradually flows into the interior of the injection cylinder 7. Then, the hydraulic push rod 10 is controlled by the single-chip microcomputer 2 to operate. The telescopic end of the hydraulic push rod 10 pushes the injection cylinder 7, causing the injection cylinder 7 to drive the lower pressure plate 6 and the upper mold base 16 to move downward along the outer surface of the support column 8 until the upper mold base 16 completely fits with the vertically adjacent lower mold base 3, forming a whole, ensuring the closure of the mold and the accuracy of the injection space. When the lower pressure plate 6 moves downward, it drives the pressure column 47 to contact the vertically adjacent limit block 43 and apply pressure, causing the limit block 43 to move downward along the inner wall of the sliding groove 44. At the same time, the pressure also compresses the spring 41 and compresses the ejector post 45 inside the sliding hole 46. Once the mold is completely closed, the hydraulic push rod 10 continues to push the injection end of the injection cylinder 7, and the liquid pushes the preheated plastic through the injection cylinder 7 into the cavity where the upper mold base 16 completely fits with the vertically adjacent lower mold base 3. After filling, the hydraulic push rod 10 is controlled by the single-chip microcomputer 2 to operate. The telescopic end of the hydraulic push rod 10 drives the upper mold base 16 to separate from the vertically adjacent lower mold base 3. At this time, the extrusion between the pressure column 47 and the vertically adjacent limit block 43 is released, releasing the elastic potential energy stored in the spring 41. The release of the spring 41 pushes the sliding frame 42 to rebound along the inner wall of the sliding groove 44, ejecting the ejector post 45 into the interior of the lower mold base 3, causing the formed workpiece to be ejected from the lower mold base 3, thereby reducing the dependence on operators and making the entire discharging process more automated. After taking out, the single-chip microcomputer 2 controls the operation of the motor 151. The output shaft of the motor 151 rotates to drive the worm 152 to rotate. The worm 152 meshes with the worm gear 153 to rotate, causing the rotating shaft 14 to start rotating. The rotating shaft 14 rotates to drive the turntable 5 to rotate, and the turntable 5 drives the lower mold base 3 of the next station to rotate to the position corresponding to the upper mold base 16 up and down for injection molding of the next station.

[0028] It should be noted that in the above embodiments, the model of the single-chip microcomputer 2 is PIC12F508-I / SN, the hydraulic push rod 10 is preferably selected as DYTP, the motor 151 can be selected as Y180L-615, and the single-chip microcomputer 2 controls the operation of the hydraulic push rod 10 and the motor 151 using the commonly used methods in the prior art.

[0029] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A three-station molding machine that is convenient for discharging, characterized in that: It comprises a workbench (1), a discharging mechanism (4) and a supporting column (8); The workbench (1) is provided with a mounting groove (13) at its inner upper end, a rotating shaft (14) is rotatably connected between the upper and lower inner walls of the mounting groove (13), the top end of the rotating shaft (14) extends to the outside of the upper surface of the workbench (1), the top end of the rotating shaft (14) is fixedly connected to a turntable (5), and three lower die seats (3) are installed on the upper surface of the turntable (5) by bolts; Discharging mechanism (4): there are three discharging mechanisms (4), which are respectively arranged inside the rotating disk (5), and each discharging mechanism (4) is installed in cooperation with the adjacent lower die base (3); Support columns (8): There are four support columns (8), and the middle parts between the four support columns (8) are slidably connected to the four corners of a lower pressing plate (6). An upper mold base (16) is installed in the middle part of the lower surface of the lower pressing plate (6) by bolts. An injection cylinder (7) is provided in the middle part of the upper surface of the lower pressing plate (6). The injection port of the injection cylinder (7) is connected to the liquid inlet of the lower mold base (3). The upper mold base (16) is installed in coordination with the vertically adjacent lower mold base (3).

2. A three-station forming machine for easy discharging according to claim 1, characterized in that: It also comprises a single chip computer (2), which is arranged at the right end of the front side of the workbench (1), and the input end of the single chip computer (2) is electrically connected to an external power supply.

3. A three-station forming machine for easy discharging according to claim 1, characterized in that: It also comprises a delivery tube (12), which is fixedly connected to the liquid inlet at the right end of the outer surface of the injection cylinder (7), and the top end of the delivery tube (12) is fixedly connected to the liquid inlet hopper (11).

4. A three-station forming machine for easy discharging according to claim 2, characterized in that: It also includes a mounting plate (9), which is fixedly connected to the upper end between the four support columns (8), and a hydraulic push rod (10) is provided in the middle of the upper surface of the mounting plate (9), the telescopic end of the hydraulic push rod (10) is fixedly connected to the injection end of the injection cylinder (7), and the input end of the hydraulic push rod (10) is electrically connected to the output end of the single chip computer (2).

5. A three-station forming machine for easy discharging according to claim 1, characterized in that: The discharging mechanism (4) comprises a sliding frame (42), a sliding groove (44), an ejection column (45) and a sliding hole (46). The number of the sliding grooves (44) is three. The three sliding grooves (44) are respectively arranged inside the rotating disk (5). The inner walls of the sliding grooves (44) are slidably connected to the sliding frames (42). The middle parts of the sliding frames (42) are fixedly connected to the ejection columns (45). The sliding holes (46) are arranged on the upper surface of the rotating disk (5). The sliding holes (46) are connected to the vertically adjacent sliding grooves (44). The top ends of the sliding holes (46) extend to the inside of the vertically adjacent lower mold base (3). The inner walls of the sliding holes (46) are slidably connected to the upper ends of the vertically adjacent ejection columns (45).

6. A three-station forming machine for easy discharging according to claim 5, characterized in that: The discharging mechanism (4) further comprises a spring (41), a limit block (43) and a pressure column (47); the limit blocks (43) are fixedly connected to the top of the sliding frame (42); a spring (41) is fixedly connected between the lower surface of the limit block (43) and the upper surface of the adjacent rotating disk (5); the spring (41) is sleeved on the outer surface of the upper end of the sliding frame (42); the pressure column (47) is fixedly connected to the left and right ends of the lower surface of the lower pressure plate (6), respectively; the pressure column (47) is installed in cooperation with the limit blocks (43) adjacent in the vertical direction.

7. A three-station forming machine for easy discharging according to claim 2, characterized in that: The invention also comprises a driving assembly (15), wherein the driving assembly (15) comprises a motor (151), a worm (152) and a worm wheel (153); the motor (151) is mounted on the rear end of the bottom wall of the mounting groove (13) by means of bolts; the front end of the output shaft of the motor (151) is fixedly connected to the worm (152); the worm wheel (153) is fixedly sleeved on the lower end of the rotating shaft (14); the worm wheel (153) is meshingly connected to the worm (152); and the input end of the motor (151) is electrically connected to the output end of the single-chip computer (2).

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