A vertical injection molding machine with a column

By designing a locking cylinder and locking rod for a vertical injection molding machine with a column and disc, combined with a servo motor and transmission gear system, the problems of inaccurate mold movement and driven wheel vibration are solved, achieving high-precision mold positioning and stable injection, and improving yield and material handling efficiency.

CN224489814UActive Publication Date: 2026-07-14DONGGUAN MIN-HUI PLASTIC MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN MIN-HUI PLASTIC MASCH CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing injection molding machines, the mold cannot be moved precisely to the designated position, and the driven wheel is prone to vibration, which affects the injection molding effect of the product.

Method used

The vertical injection molding machine with a rotating disc and a column is adopted. The locking cylinder and locking rod work together to ensure that the rotating disc is locked in the designated position. Combined with the servo motor and transmission gear system, the precise positioning and stability of the mold are improved. The hydraulic cylinder and cylinder system realizes the precise mold closing and rapid demolding of the upper and lower molds.

Benefits of technology

It improves the precision positioning accuracy of the mold, enhances the stability and yield of the injection molding process, and improves the convenience and efficiency of loading and unloading materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to injection molding machine technical field, concretely is a kind of with machine column disc vertical type glue injection molding machine, including injection molding platform, the upside of injection molding platform is provided with injection molding subassembly, and injection molding subassembly includes rotary disc, transmission gear ring, servo motor, driving gear, mounting bracket, support column, mounting plate, hydraulic cylinder, equipment box, feeding cylinder and injection molding head, rotary disc is installed in the upside of injection molding platform, and the left and right sides of rotary disc surface are all set with locking groove, and the left and right sides of inner top wall of injection molding platform are all fixedly installed with locking cylinder, and the upper end of piston rod in locking cylinder is fixedly connected with locking rod;After rotary disc rotates to specified position, locking cylinder pushes locking rod into locking groove, and the stability in processing process is improved, when rotary disc position appears to deviate, locking rod will correct rotary disc, and then improve rotary disc adjustment accuracy, improve the accuracy of lower mould, and then effectively improve product processing effect, improve yield.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a vertical injection molding machine with a column disc. Background Technology

[0002] Injection molding machines are generally used in industries such as automobiles and electronics to mold components into shape by injecting molten material. When injection molding the surface of a semi-finished product, the embedded part needs to be placed on the mold surface. After the injection molding is completed, the finished product is removed. To improve injection molding efficiency, rotary injection molding machines are usually used.

[0003] Among them, announcement number CN207859328U discloses a rotary sliding vertical injection molding machine, including an injection molding machine body and a rotary sliding mechanism located on the side of the injection molding machine. The rotary sliding mechanism includes an injection table and a discharge table. The injection table and discharge table are provided with a lower slide plate, and the lower slide plate is provided with an upper slide plate. The upper slide plate is provided with a rotary mechanism. The injection table is provided with two hydraulic cylinders, and the output end of the hydraulic cylinders is connected to the upper slide plate, driving the upper slide plate to slide along the lower slide plate. The injection table is provided with a fixed mold mechanism. This equipment can perform injection molding at different intervals by rotating the rotary table, and the sliding mechanism can effectively avoid the consequences of long time, low efficiency and many defective products caused by manual melting and filling. It greatly improves production efficiency and saves processing costs. It is simple to operate and can be equipped to realize fully automated production.

[0004] However, the driven wheel is driven to rotate by the motor, transmission gears and cleats. During long-term use, the rotation angle of the driven wheel is prone to certain errors, making it impossible to move the mold to the designated position accurately. In addition, the driven wheel is prone to vibration during the mold closing process, which affects the product injection molding effect.

[0005] Therefore, it is necessary to invent a vertical injection molding machine with a column and disc to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a vertical injection molding machine with a column disc to solve the problems in the technology of not being able to move the mold to the specified position accurately, and the driven wheel being prone to vibration, which affects the product injection effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vertical injection molding machine with a rotating disc and a column, comprising an injection table, an injection assembly on the upper side of the injection table, the injection assembly comprising a rotating disc, a transmission gear ring, a servo motor, a drive gear, a mounting bracket, a support column, a mounting plate, a hydraulic cylinder, an equipment box, a feed cylinder, and an injection head, the rotating disc being mounted on the upper side of the injection table, and locking grooves being provided on both the left and right sides of the surface of the rotating disc, and locking cylinders being fixedly installed on both the left and right sides of the inner top wall of the injection table, with a locking rod fixedly connected to the upper end of the piston rod in the locking cylinder.

[0008] By adopting the above technical solution, the upper mold is installed on the lower surface of the mounting plate, and two sets of lower molds are installed on the front and rear sides of the rotating disk respectively. The rotating disk rotates the two sets of lower molds alternately to the rear side, so that the finished product is removed and the semi-finished product is placed on one side, while the injection molding process is performed on the other side. At the same time, the upper end of the locking rod is arc-shaped. After the two sets of lower molds rotate to the designated position, the locking cylinder is activated. The piston rod in the locking cylinder pushes the locking rod upward and locks it into the locking groove, thereby locking the rotating disk and improving the stability during the processing. When the position of the rotating disk is offset, because the upper end of the locking rod is arc-shaped, the locking rod will correct the rotating disk when it is inserted into the locking groove, thereby improving the adjustment accuracy of the rotating disk and the accuracy of the lower mold.

[0009] Optionally, the mounting bracket is disposed on the upper side of the injection molding table, and three sets of support columns are fixedly connected to the surface of the mounting bracket. The lower end of the front support column is fixedly connected to the center of the upper wall of the injection molding table, and the lower ends of the two rear sets of support columns are fixedly connected to the left and right ends of the rear side of the injection molding table.

[0010] By adopting the above technical solution, the three sets of support columns support and fix the mounting frame, improving the stability of the mounting frame. At the same time, the three sets of support columns avoid obstructing the front side of the rotating plate, improving the convenience of loading and unloading materials.

[0011] Optionally, the mounting plate is slidably connected to three sets of support columns, the hydraulic cylinder is fixedly installed at the center of the upper surface of the mounting frame, the lower end of the piston rod in the hydraulic cylinder is fixedly connected to the mounting plate, and auxiliary cylinders are fixedly installed on the surface of the mounting frame at the left and right sides of the hydraulic cylinder, the lower ends of the piston rods in the auxiliary cylinders are fixedly connected to the mounting plate.

[0012] By adopting the above technical solution, the hydraulic cylinder is used to push the mounting plate downward, thereby pushing the upper mold downward, and two sets of auxiliary cylinders are used to assist the hydraulic cylinder in pushing the upper mold downward, so that the upper and lower molds can close together.

[0013] Optionally, the axis of the rotating disk is rotatably connected to the lower end of the front support column, the transmission gear ring is fixedly connected to the side wall of the rotating disk, the servo motor is fixedly installed on the left front side of the inner top wall of the injection molding table, the drive gear is fixedly connected to the output end of the servo motor, and the drive gear meshes with the transmission gear ring.

[0014] By adopting the above technical solution, the servo motor is used to drive the drive gear to rotate, and the drive gear cooperates with the driven gear ring to drive the rotating disk to rotate around the front support column.

[0015] Optionally, multiple sets of positioning blocks are fixedly connected to the upper surface of the injection molding platform at the position on the side of the rotating disk. The side of the positioning block abuts against the side wall of the rotating disk. Protective shells are provided on the upper side of the transmission gear ring and the drive gear. The protective shells are fixedly connected to the upper ends of the multiple sets of positioning blocks. Baffles are fixedly connected to the left, right and rear sides of the upper surface of the injection molding platform.

[0016] By adopting the above technical solution, the side wall of the rotating disk rotates in close contact with the positioning block. Multiple sets of positioning blocks improve the stability of the rotating disk during rotation. At the same time, the protective shell protects the transmission gear ring and the drive gear, preventing foreign objects from adhering to the surface and improving operational safety. The baffle plate is used to protect the equipment, preventing foreign objects from falling between the upper and lower molds during the mold closing process, and also preventing accidental contact during mold closing.

[0017] Optionally, multiple sets of positioning holes are provided on both the front and rear sides of the rotating disk surface, and multiple sets of ventilation holes are provided on both the left and right sides of the positioning holes on the rotating disk surface.

[0018] By adopting the above technical solution, the vent hole facilitates rapid heat dissipation from the lower mold, thereby improving the product shaping speed.

[0019] Optionally, a connecting plate is fixedly connected to the inner top wall of the injection molding station at the position below the front positioning hole. A lifting cylinder is fixedly installed on the lower surface of the connecting plate. Two sets of limiting rods are fixedly connected to the upper surface of the connecting plate. A lifting plate is slidably connected between the two sets of limiting rods. The upper end of the piston rod in the lifting cylinder is fixedly connected to the lifting plate. Multiple sets of push rods are fixedly connected to the upper surface of the lifting plate.

[0020] By adopting the above technical solution, during the installation of the lower mold, the ejector hole in the lower mold is aligned with the positioning hole. During the material removal process, the lifting cylinder is activated, which pushes the lifting plate upward, so that multiple sets of ejector rods pass through multiple sets of positioning holes and ejector holes, thereby quickly ejecting the finished product and improving the convenience of material removal.

[0021] Optionally, an equipment frame is fixedly connected to the rear side of the injection molding table, and an equipment box that can be raised, lowered, and slid back and forth is installed on the upper side of the equipment frame. The feed cylinder is fixedly connected to the front end of the equipment box, and the injection head is fixedly connected to the front end of the feed cylinder.

[0022] By adopting the above technical solution, the equipment box can be raised and lowered on the upper side of the equipment frame, which facilitates feeding different molds.

[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0024] 1. This utility model, after the two sets of lower molds rotate to the designated position, activates the locking cylinder. The piston rod in the locking cylinder pushes the locking rod upward and locks it into the locking groove, thereby locking the rotating disk and improving the stability during the processing. When the position of the rotating disk deviates, the locking rod will correct the rotating disk when it is inserted into the locking groove, thereby improving the adjustment accuracy of the rotating disk, improving the accuracy of the lower mold, and thus effectively improving the product processing effect and increasing the yield.

[0025] 2. This utility model, during the material handling process, activates a lifting cylinder, which pushes the lifting plate upward, causing multiple sets of ejector rods to pass through multiple sets of positioning holes and ejector holes, thereby quickly ejecting the finished product and enabling rapid demolding, further improving the convenience of material handling and the efficiency of loading and unloading. Attached Figure Description

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

[0027] Figure 2 This is a schematic diagram of the equipment frame structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the injection molding component structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the injection molding table structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the rotating disk structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Injection molding table; 11. Rotary disc; 12. Transmission gear ring; 13. Positioning hole; 14. Locking groove; 15. Vent hole; 16. Servo motor; 17. Drive gear; 18. Positioning block; 19. Protective shell; 110. Baffle plate; 2. Mounting bracket; 21. Support column; 22. Mounting plate; 23. Auxiliary cylinder; 24. Hydraulic cylinder; 3. Connecting plate; 31. Lifting cylinder; 32. Limit rod; 33. Lifting plate; 34. Top rod; 35. Locking cylinder; 36. Locking rod; 4. Equipment frame; 41. Equipment box; 42. Feed cylinder; 43. Injection head. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 5 The illustrated vertical injection molding machine with a column and disc includes an injection table 1. An injection assembly is mounted on the upper side of the injection table 1. The injection assembly includes a rotating disk 11, a transmission gear ring 12, a servo motor 16, a drive gear 17, a mounting frame 2, a support column 21, a mounting plate 22, a hydraulic cylinder 24, an equipment box 41, a feed cylinder 42, and an injection head 43. The rotating disk 11 is mounted on the upper side of the injection table 1. Locking grooves 14 are provided on both the left and right sides of the surface of the rotating disk 11. Locking cylinders 35 are fixedly mounted on both the left and right sides of the inner top wall of the injection table 1. A locking rod 36 is fixedly connected to the upper end of the piston rod in the locking cylinder 35. An equipment frame 4 is fixedly connected to the rear side of the injection table 1. An equipment box 41 that can be raised, lowered, and slid forward and backward is mounted on the upper side of the equipment frame 4. The feed cylinder 42 is fixedly connected to the front end of the equipment box 41, and the injection head 43 is fixedly connected to the front end of the feed cylinder 42.

[0035] The upper mold is installed on the lower surface of the mounting plate 22, and the lower molds are installed on both the front and rear sides of the upper surface of the rotating disk 11. During the injection molding process, the embedded part of the product is first placed in the lower mold on the front side. The rotating disk 11 sends the lower mold on the front side to the injection position on the rear side for processing and forming. At this time, the lower mold on the rear side rotates to the front side. Then, the hydraulic cylinder 24 closes the upper and lower molds. Then, the material is injected through the feed cylinder 42 and the injection head 43 for processing. During the injection molding process, the embedded part of the product is placed back into the lower mold on the front side. After the product in the lower mold on the rear side is formed, it is rotated forward and the semi-finished part is rotated to the rear side. This process is repeated on one side to take out the finished product and put it into the embedded part, and on the other side to perform injection molding, which effectively improves the injection molding efficiency.

[0036] When the rotating disk 11 rotates 180° and moves the lower mold to the processing and unloading position, the system automatically locks the cylinder 35. The piston rod in the locking cylinder 35 pushes the locking rod 36 upward, thereby inserting the locking rod 36 into the locking groove 14 to lock the rotating disk 11, improving the stability of the rotating disk 11 during the injection molding process and preventing it from vibrating and shifting. At the same time, when the lower mold has not been precisely moved to the processing position, because the upper end of the locking rod 36 is arc-shaped, the rotating disk 11 will rotate to one side during the upward pushing of the locking rod 36, thereby correcting the rotating disk 11 and accurately positioning the lower mold.

[0037] In addition, the standard rotary table 11 has two stations, and can be set to three or four stations according to actual needs.

[0038] See Figures 3 to 5 The axis of the rotating disk 11 is rotatably connected to the lower end of the front support column 21. The transmission gear ring 12 is fixedly connected to the side wall of the rotating disk 11. The servo motor 16 is fixedly installed on the left front side of the inner top wall of the injection molding table 1. The drive gear 17 is fixedly connected to the output end of the servo motor 16. The drive gear 17 meshes with the transmission gear ring 12. Multiple sets of positioning blocks 18 are fixedly connected to the upper surface of the injection molding table 1 at the side of the rotating disk 11. The side of the positioning block 18 abuts against the side wall of the rotating disk 11. The upper sides of the transmission gear ring 12 and the drive gear 17 are provided with protective shells 19. The protective shells 19 are fixedly connected to the upper ends of the multiple sets of positioning blocks 18. The left, right and rear sides of the upper surface of the injection molding table 1 are fixedly connected with baffles 110.

[0039] In addition, during the adjustment of the lower mold position, the servo motor 16 is started. The output end of the servo motor 16 drives the drive gear 17 to rotate. The drive gear 17 drives the transmission gear ring 12 to rotate. The transmission gear ring 12 drives the rotating disk 11 to rotate around the front support column 21. At the same time, multiple sets of positioning blocks 18 position the rotating disk 11 during the rotation process, improving the stability of the rotating disk 11 during the rotation process.

[0040] See Figure 1 and Figure 3 The mounting bracket 2 is set on the upper side of the injection molding table 1. Three sets of support columns 21 are fixedly connected to the surface of the mounting bracket 2. The lower end of the front support column 21 is fixedly connected to the center of the upper wall of the injection molding table 1. The lower ends of the two rear support columns 21 are fixedly connected to the left and right ends of the rear side of the injection molding table 1. The mounting plate 22 is slidably connected to the three sets of support columns 21. The hydraulic cylinder 24 is fixedly installed at the center of the upper surface of the mounting bracket 2. The lower end of the piston rod in the hydraulic cylinder 24 is fixedly connected to the mounting plate 22. Auxiliary cylinders 23 are fixedly installed on the surface of the mounting bracket 2 at the left and right sides of the hydraulic cylinder 24. The lower ends of the piston rods in the auxiliary cylinders 23 are fixedly connected to the mounting plate 22.

[0041] Specifically, when the upper and lower molds are closed, the hydraulic cylinder 24 and the auxiliary cylinder 23 are activated. The hydraulic cylinder 24 and the auxiliary cylinder 23 work together to push the mounting plate 22 downward, so that the mounting plate 22 slides downward on the surface of the three sets of support columns 21, thereby pushing the upper mold downward and closing the upper and lower molds. At this time, the drive assembly pushes the equipment box 41, the feed cylinder 42 and the injection head 43 forward, so that the injection head 43 is inserted into the upper mold and fills the cavity between the upper and lower molds with material to inject the product.

[0042] See Figure 4 and Figure 5 Multiple sets of positioning holes 13 are provided on the front and rear sides of the surface of the rotating disk 11. Multiple sets of ventilation holes 15 are provided on the left and right sides of the positioning holes 13 on the surface of the rotating disk 11. A connecting plate 3 is fixedly connected to the inner top wall of the injection molding table 1 at the position below the front positioning hole 13. A lifting cylinder 31 is fixedly installed on the lower surface of the connecting plate 3. Two sets of limit rods 32 are fixedly connected to the upper surface of the connecting plate 3. A lifting plate 33 is slidably connected between the two sets of limit rods 32. The upper end of the piston rod in the lifting cylinder 31 is fixedly connected to the lifting plate 33. Multiple sets of push rods 34 are fixedly connected to the upper surface of the lifting plate 33.

[0043] Meanwhile, during the material handling process, the lifting cylinder 31 is activated. The piston rod in the lifting cylinder 31 pushes the lifting plate 33 upward. During the lifting process, the lifting plate 33 pushes multiple sets of ejector rods 34 upward. Since the locking groove 14, the locking cylinder 35 and the locking rod 36 work together to accurately position the rotating disk 11, the ejector rods 34 can accurately pass through the positioning hole 13 during the upward pushing process, and then be pushed upward from the ejector hole of the lower mold, so as to quickly demold the finished injection molded part and improve the convenience of material handling.

[0044] The working principle of this utility model is as follows: After the two sets of lower molds rotate to the designated position, the piston rod in the locking cylinder 35 pushes the locking rod 36 upward and locks it into the locking groove 14 to lock the rotating disk 11, thereby improving the stability during the processing. When the position of the rotating disk 11 deviates, the locking rod 36 will correct the rotating disk 11 when it is inserted into the locking groove 14, thereby improving the adjustment accuracy of the rotating disk 11 and the accuracy of the lower mold, thus effectively improving the product processing effect and increasing the yield. At the same time, during the material picking process, the lifting cylinder 31 pushes multiple sets of ejector rods 34 upward, so that they pass through multiple sets of positioning holes 13 and ejector holes, thereby quickly ejecting the finished product and making the product quickly demolded, further improving the convenience of material picking and the efficiency of loading and unloading.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vertical injection molding machine with a column and disc, comprising an injection table (1), characterized in that: The upper side of the injection molding table (1) is provided with an injection molding assembly, which includes a rotating disk (11), a transmission gear ring (12), a servo motor (16), a drive gear (17), a mounting bracket (2), a support column (21), a mounting plate (22), a hydraulic cylinder (24), an equipment box (41), a feed cylinder (42), and an injection head (43). The rotating disk (11) is installed on the upper side of the injection molding table (1). Locking grooves (14) are provided on both the left and right sides of the surface of the rotating disk (11). Locking cylinders (35) are fixedly installed on both the left and right sides of the inner top wall of the injection molding table (1). A locking rod (36) is fixedly connected to the upper end of the piston rod in the locking cylinder (35).

2. The vertical injection molding machine with a column and disc according to claim 1, characterized in that: The mounting bracket (2) is set on the upper side of the injection molding table (1). Three sets of support columns (21) are fixedly connected to the surface of the mounting bracket (2). The lower end of the front support column (21) is fixedly connected to the center of the upper wall of the injection molding table (1), and the lower ends of the two rear sets of support columns (21) are fixedly connected to the left and right ends of the rear side of the injection molding table (1).

3. A vertical injection molding machine with a column and disc according to claim 2, characterized in that: The mounting plate (22) is slidably connected to three sets of support columns (21). The hydraulic cylinder (24) is fixedly installed at the center of the upper surface of the mounting frame (2). The lower end of the piston rod in the hydraulic cylinder (24) is fixedly connected to the mounting plate (22). Auxiliary cylinders (23) are fixedly installed on the surface of the mounting frame (2) on both the left and right sides of the hydraulic cylinder (24). The lower end of the piston rod in the auxiliary cylinder (23) is fixedly connected to the mounting plate (22).

4. A vertical injection molding machine with a column and disc according to claim 1, characterized in that: The axis of the rotating disk (11) is rotatably connected to the lower end of the front support column (21). The transmission gear ring (12) is fixedly connected to the side wall of the rotating disk (11). The servo motor (16) is fixedly installed on the left front side of the inner top wall of the injection molding table (1). The drive gear (17) is fixedly connected to the output end of the servo motor (16). The drive gear (17) meshes with the transmission gear ring (12).

5. A vertical injection molding machine with a column and disc according to claim 4, characterized in that: Multiple sets of positioning blocks (18) are fixedly connected to the upper surface of the injection molding table (1) at the position on the side of the rotating disk (11). The side of the positioning block (18) abuts against the side wall of the rotating disk (11). The upper side of the transmission gear ring (12) and the drive gear (17) are provided with protective shells (19). The protective shells (19) are fixedly connected to the upper ends of the multiple sets of positioning blocks (18). The left and right sides and the rear side of the upper surface of the injection molding table (1) are fixedly connected with baffles (110).

6. A vertical injection molding machine with a column and disc according to claim 1, characterized in that: Multiple sets of positioning holes (13) are provided on the front and rear sides of the surface of the rotating disk (11), and multiple sets of ventilation holes (15) are provided on the left and right sides of the positioning holes (13) on the surface of the rotating disk (11).

7. A vertical injection molding machine with a column and disc according to claim 6, characterized in that: A connecting plate (3) is fixedly connected to the inner top wall of the injection molding station (1) at the position below the front positioning hole (13). A lifting cylinder (31) is fixedly installed on the lower surface of the connecting plate (3). Two sets of limiting rods (32) are fixedly connected to the upper surface of the connecting plate (3). A lifting plate (33) is slidably connected between the two sets of limiting rods (32). The upper end of the piston rod in the lifting cylinder (31) is fixedly connected to the lifting plate (33). Multiple sets of top rods (34) are fixedly connected to the upper surface of the lifting plate (33).

8. A vertical injection molding machine with a column and disc according to claim 1, characterized in that: The injection molding table (1) is fixedly connected to the rear side of the equipment frame (4), and the equipment frame (44) is equipped with a lifting and sliding equipment box (41) on the upper side of the equipment frame (4). The feed cylinder (42) is fixedly connected to the front end of the equipment box (41), and the injection head (43) is fixedly connected to the front end of the feed cylinder (42).