Multi-station carousel for injection molding machines

Abstract

The utility model relates to a turntable technical field, especially a multi -position turntable for injection molding machine, including the turntable main part, the top of turntable main part is provided with two symmetrical settings mould main part, the one side of each mould main part is rotatably connected with several symmetrical settings locking bolt, the screw rod portion of several locking bolt all are with the turn of thread connection of turntable main part, the utility model has the advantages of: placing mould main part on the ball, when promoting mould main part, the ball rolls and reduces the friction between mould main part and turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole of mould main part is aligned with the thread hole of turntable main part, and the locking hole

Description

Technical Field

[0001] This utility model relates to the field of turntable technology, and in particular to a multi-station turntable for injection molding machines. Background Technology

[0002] A multi-station turntable for a vertical injection molding machine is a rotary tooling component installed on the worktable of the machine. Its core function is to achieve the cyclic switching of multiple injection molds between different processing stations through intermittent rotation around a vertical axis, thereby cooperating with the injection molding machine to complete continuous operation processes such as feeding, injection, cooling, and demolding. Structurally, this type of turntable typically consists of a circular table, a drive mechanism (such as a servo motor or divider), positioning components, and a locking device. The table can evenly distribute multiple mold mounting positions according to production needs. The drive mechanism controls the turntable to rotate precisely at a preset angle, the positioning components ensure the positional accuracy of each station, and the locking device fixes the turntable during injection to prevent it from shifting due to injection pressure.

[0003] Two or more injection molds need to be bolted to the top of the turntable. During installation, the operator must first move the mold to the installation position on the turntable, and then push the mold to slide on the turntable surface until the locking hole on the mold is precisely aligned with the pre-set threaded hole on the turntable. However, due to the large weight of the injection mold itself, and the fact that the turntable surface and the bottom of the mold are mostly in direct contact with metal, the friction between the two is extremely high. Pushing the mold requires a lot of manpower, especially when adjusting the mold angle to align with the hole. The mold is prone to jamming or shifting due to uneven force, which not only increases the difficulty of operation, but may also cause scratches on the turntable or the bottom of the mold due to severe friction, affecting the service life of the equipment. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a multi-station turntable for injection molding machines to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a multi-station turntable for an injection molding machine, comprising a turntable body. Two symmetrically arranged mold bodies are disposed on the top of the turntable body. A plurality of symmetrically arranged locking bolts are rotatably connected to one side of each mold body. The threaded portions of the locking bolts are threadedly connected to the turntable body. Two symmetrically arranged brackets are fixedly connected to the bottom of the turntable body. A hydraulic cylinder is fixedly connected to one side of each bracket. A first wedge plate is fixedly connected to the output end of each hydraulic cylinder. A plurality of linearly arranged springs are fixedly connected to the inner wall of the turntable body. A second wedge plate is fixedly connected to the bottom end of each spring. The second wedge plate is slidably connected to the first wedge plate. A plurality of linearly arranged push rods are fixedly connected to the top of the second wedge plate. The push rods are slidably connected to the turntable body. A ball bearing is rotatably connected to the top end of each push rod.

[0007] Preferably, the top surface of the turntable body has a plurality of linearly arrayed through holes, and the plurality of top rods are slidably connected to the turntable body through the through holes.

[0008] Preferably, the top surface of the turntable body has a plurality of linearly arrayed threaded holes, and the screw portions of the plurality of locking bolts are threadedly connected to the turntable body through the threaded holes.

[0009] Preferably, in any of the above embodiments, a connecting plate is fixedly installed between the two brackets by bolts. The connecting plate is parallel to the turntable body, and a drive rod is fixedly connected to the bottom of the connecting plate. The axis of the drive rod coincides with the center of the turntable body.

[0010] Preferably, in any of the above embodiments, several of the push rods are located inside several springs, and the push rods are perpendicular to the second wedge plate.

[0011] Preferably, one side of the first wedge plate is fixedly connected to two symmetrically arranged guide rods, and both guide rods are slidably connected to the bracket.

[0012] Preferably, in any of the above solutions, the inner wall of the bracket is fixedly connected to two symmetrically arranged T-shaped guide plates, and the first wedge plate is slidably connected to the T-shaped guide plates.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. Before installing the mold body, start the hydraulic cylinder, causing its output end to push the first wedge plate to slide along the T-shaped guide plate. The first wedge plate contacts and presses against the second wedge plate, causing the second wedge plate to compress the spring and move upward, driving the push rod to pass through the through hole and extend out of the top surface of the turntable body. At this time, the ball bearings protrude from the surface of the turntable body. Place the mold body on the ball bearings. When pushing the mold body, the ball bearings roll, reducing the friction between the mold body and the turntable body, making it easier to adjust the position so that the locking hole of the mold body is aligned with the threaded hole of the turntable body. After alignment, start the hydraulic cylinder in the reverse direction. The spring resets, causing the second wedge plate, push rod, and ball bearings to retract. The mold body falls onto the turntable body and is finally fixed with locking bolts. In this design, the ball bearings provide rolling support during the mold body installation stage, which greatly reduces the friction when pushing the mold, reduces manpower consumption, avoids scratches caused by direct friction between the mold body and the turntable body, and facilitates precise adjustment of the mold position, improving installation efficiency and ease of operation.

[0014] 2. The bottom of the turntable body is supported by brackets, and a connecting plate connects the two brackets into a whole, improving the load-bearing capacity of the brackets. The drive rod coincides with the center of the turntable body, ensuring the concentricity of the turntable body during rotation. When the first wedge plate moves, the guide rod slides along the bracket, and the T-shaped guide plate restricts the movement direction of the first wedge plate, ensuring stable contact between the first and second wedge plates. The ejector rod is located inside the spring to prevent displacement when the spring deforms, ensuring that the ejector rod rises and falls vertically along the through hole. In this structure, the combination of brackets and connecting plates enhances the overall rigidity of the turntable body, the drive rod ensures rotational accuracy, the guide rod and T-shaped guide plate ensure stable transmission of the wedge plate, and the cooperation between the ejector rod and the spring prevents component displacement, thereby reducing shaking and deviation during mold installation and turntable operation, ensuring the accuracy of injection molding and the long-term stability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the assembly of this utility model; Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the turntable body of this utility model; Figure 4 This is a schematic diagram of the structure of the bracket of this utility model; Figure 5 This is a schematic diagram of the structure of the second wedge plate of this utility model.

[0016] In the diagram: 1-Turntable body, 2-Mold body, 3-Locking bolt, 4-Bracket, 5-Hydraulic cylinder, 6-First wedge plate, 7-Spring, 8-Second wedge plate, 9-Push rod, 10-Ball, 11-Through hole, 12-Threaded hole, 13-Connecting plate, 14-Drive rod, 15-Guide rod, 16-T-shaped guide plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0018] like Figures 1 to 5 As shown, a multi-station turntable for an injection molding machine includes a turntable body 1. Two symmetrically arranged mold bodies 2 are mounted on the top of the turntable body 1. A plurality of symmetrically arranged locking bolts 3 are rotatably connected to one side of each mold body 2. The threaded portions of the locking bolts 3 are threadedly connected to the turntable body 1. Two symmetrically arranged brackets 4 are fixedly connected to the bottom of the turntable body 1. A hydraulic cylinder 5 is fixedly connected to one side of each bracket 4. A first wedge plate 6 is fixedly connected to the output end of each hydraulic cylinder 5. A plurality of linearly arranged springs 7 are fixedly connected to the inner wall of the turntable body 1. A second wedge plate 8 is fixedly connected to the bottom end of each spring 7. The second wedge plate 8 is slidably connected to the first wedge plate 6. A plurality of linearly arranged ejector rods 9 are fixedly connected to the top of the second wedge plate 8. The ejector rods 9 are all slidably connected to the turntable body 1. A ball bearing 10 is rotatably connected to the top end of each ejector rod 9.

[0019] As an optional technical solution of this utility model, the top surface of the turntable body 1 is provided with a number of linear array through holes 11. A number of push rods 9 are slidably connected to the turntable body 1 through the through holes 11. The through holes 11 on the top surface of the turntable body 1 provide sliding channels for the push rods 9, ensuring that the push rods 9 can rise and fall stably along a fixed path, avoiding the push rods 9 from deviating or getting stuck during the movement, thereby ensuring that the balls 10 can accurately extend or retract from the surface of the turntable body 1, and improving the reliability of the movement of the push rods 9.

[0020] As an optional technical solution of this utility model, the top surface of the turntable body 1 is provided with a number of linearly arrayed threaded holes 12, and the screws of a number of locking bolts 3 are all threadedly connected to the turntable body 1 through the threaded holes 12. The threaded holes 12 on the top surface of the turntable body 1 cooperate with the locking bolts 3 to provide a stable connection structure for fixing the mold body 2, ensuring that the locking bolts 3 can accurately and firmly fix the mold body 2 on the turntable body 1, preventing the mold body 2 from loosening during the turntable rotation or injection molding process, and ensuring the stability of injection molding.

[0021] As an optional technical solution of this utility model, a connecting plate 13 is fixedly installed between the two brackets 4 by bolts. The connecting plate 13 is parallel to the turntable body 1. A drive rod 14 is fixedly connected to the bottom of the connecting plate 13. The axis of the drive rod 14 coincides with the center of the turntable body 1. The two brackets 4 are connected into a whole by the connecting plate 13, which enhances the support strength and stability of the brackets 4 for the turntable body 1 and avoids deformation of the brackets 4 due to uneven force. The drive rod 14 at the bottom of the connecting plate 13 coincides with the center of the turntable body 1, which ensures the concentricity of the turntable body 1 when rotating, reduces the shaking during the rotation process, and improves the accuracy of the turntable operation.

[0022] As an optional technical solution of this utility model, a plurality of push rods 9 are respectively located inside a plurality of springs 7. The push rods 9 are perpendicular to the second wedge plate 8. The push rods 9 are located inside the springs 7, which can limit the deformation direction of the springs 7, prevent the springs 7 from shifting or twisting laterally during the extension and retraction process, and ensure that the springs 7 can stably drive the push rods 9 and the second wedge plate 8 to return to their original positions. The push rods 9 are perpendicular to the second wedge plate 8, which ensures that the force direction of the push rods 9 is consistent with the movement direction, thereby improving the efficiency and stability of the lifting and lowering movement of the push rods 9.

[0023] As an optional technical solution of this utility model, two symmetrically arranged guide rods 15 are fixedly connected to one side of the first wedge plate 6. Both guide rods 15 are slidably connected to the bracket 4. The guide rods 15 on one side of the first wedge plate 6 are slidably connected to the bracket 4, which provides guidance for the movement of the first wedge plate 6, prevents the first wedge plate 6 from shifting or tilting under the push of the hydraulic cylinder 5, ensures that the first wedge plate 6 can stably contact the second wedge plate 8 and transmit the force, and improves the reliability of the wedge plate transmission structure.

[0024] As an optional technical solution of this utility model, the inner wall of the bracket 4 is fixedly connected with two symmetrically arranged T-shaped guide plates 16. The first wedge plate 6 is slidably connected to the T-shaped guide plate 16. The T-shaped guide plate 16 on the inner wall of the bracket 4 is slidably connected to the first wedge plate 6, which further restricts the movement trajectory of the first wedge plate 6, so that the first wedge plate 6 can only slide smoothly in a preset direction, avoiding jamming or deviation of the first wedge plate 6 during movement, and ensuring the stability and accuracy of the transmission between the first wedge plate 6 and the second wedge plate 8.

[0025] A multi-station turntable for injection molding machines operates on the following principle: 1): Start the hydraulic cylinder 5 so that its output end pushes the first wedge plate 6 to slide along the T-shaped guide plate 16. The first wedge plate 6 contacts and squeezes the second wedge plate 8, causing the second wedge plate 8 to compress the spring 7 and move upward, driving the push rod 9 to pass through the through hole 11 and extend out of the top surface of the turntable body 1. At this time, the ball 10 protrudes from the surface of the turntable body 1; place the mold body 2 on the ball 10.

[0026] 2): When pushing the mold body 2, the rolling ball 10 reduces the friction between the mold body 2 and the turntable body 1, making it easier to adjust the position so that the locking hole of the mold body 2 is aligned with the threaded hole 12 of the turntable body 1.

[0027] 3): After alignment, the hydraulic cylinder 5 is started in reverse. The spring 7 returns to its original position, causing the second wedge plate 8, the push rod 9 and the ball 10 to retract. The mold body 2 falls onto the turntable body 1 and is finally fixed by the locking bolt 3.

[0028] In summary, this injection molding machine uses a multi-station turntable. Before installing the mold body 2, the hydraulic cylinder 5 is activated, causing its output end to push the first wedge plate 6 to slide along the T-shaped guide plate 16. The first wedge plate 6 contacts and presses against the second wedge plate 8, causing the second wedge plate 8 to compress the spring 7 and move upward, driving the ejector rod 9 to pass through the through hole 11 and extend out of the top surface of the turntable body 1. At this time, the ball bearing 10 protrudes from the surface of the turntable body 1. The mold body 2 is placed on the ball bearing 10. When the mold body 2 is pushed, the ball bearing 10 rolls, reducing the friction between the mold body 2 and the turntable body 1, making it easier to adjust the position so that the locking hole of the mold body 2 is aligned with the threaded hole 12 of the turntable body 1. After alignment, the hydraulic cylinder 5 is activated in the reverse direction, the spring 7 returns to its original position, and the second wedge plate 8, ejector rod 9, and ball bearing 10 retract. The mold body 2 falls onto the turntable body 1 and is finally fixed by the locking bolt 3. In the design, the ball bearing 10 provides rolling support during the installation of the mold body 2, which greatly reduces the friction when pushing the mold, reduces manpower consumption, avoids scratches caused by direct friction between the mold body 2 and the turntable body 1, and facilitates precise adjustment of the mold position, improving installation efficiency and ease of operation. The bottom of the turntable body 1 is supported by the bracket 4, and the connecting plate 13 connects the two brackets 4 into a whole, improving the load-bearing capacity of the bracket 4. The drive rod 14 coincides with the center of the turntable body 1, ensuring the concentricity of the turntable body 1 when rotating. When the first wedge plate 6 moves, the guide rod 15 slides along the bracket 4, and the T-shaped guide plate 16 restricts the movement direction of the first wedge plate 6, ensuring stable contact between the first wedge plate 6 and the second wedge plate 8. The push rod 9 is located inside the spring 7, preventing the spring 7 from shifting when deformed, and ensuring that the push rod 9 rises and falls vertically along the through hole 11. In this structure, the combination of bracket 4 and connecting plate 13 enhances the overall rigidity of turntable body 1, drive rod 14 ensures rotation accuracy; guide rod 15 and T-shaped guide plate 16 ensure stable transmission of wedge plate, and the cooperation between push rod 9 and spring 7 prevents component offset, thereby reducing shaking and deviation during mold installation and turntable operation, ensuring the accuracy of injection molding and the long-term stability of equipment.

Claims

1. A multi-station turntable for an injection molding machine, characterized in that: The device includes a turntable body (1), on the top of which are two symmetrically arranged mold bodies (2). Each mold body (2) is rotatably connected to one side of a number of symmetrically arranged locking bolts (3). The screws of the locking bolts (3) are threadedly connected to the turntable body (1). The bottom of the turntable body (1) is fixedly connected to two symmetrically arranged brackets (4). Each bracket (4) is fixedly connected to one side of a hydraulic cylinder (5). The output end of each hydraulic cylinder (5) is fixedly connected to a first wedge plate (6). The inner wall of the turntable body (1) is fixedly connected to a number of linearly arranged springs (7). The bottom end of the number of springs (7) is fixedly connected to a second wedge plate (8). The second wedge plate (8) is slidably connected to the first wedge plate (6). The top of the second wedge plate (8) is fixedly connected to a number of linearly arranged push rods (9). The push rods (9) are slidably connected to the turntable body (1). The top end of each push rod (9) is rotatably connected to a ball (10).

2. The multi-station turntable for injection molding machines according to claim 1, characterized in that: The top surface of the turntable body (1) is provided with a number of linear array through holes (11), and the number of top rods (9) are slidably connected to the turntable body (1) through the through holes (11).

3. A multi-station turntable for an injection molding machine according to claim 2, characterized in that: The top surface of the turntable body (1) is provided with a number of linear array threaded holes (12), and the screws of the locking bolts (3) are threadedly connected to the turntable body (1) through the threaded holes (12).

4. A multi-station turntable for an injection molding machine according to claim 3, characterized in that: A connecting plate (13) is fixedly installed between the two brackets (4) by bolts. The connecting plate (13) is parallel to the turntable body (1). A drive rod (14) is fixedly connected to the bottom of the connecting plate (13). The axis of the drive rod (14) coincides with the center of the turntable body (1).

5. A multi-station turntable for an injection molding machine according to claim 4, characterized in that: Several of the push rods (9) are located inside several springs (7), and the push rods (9) are perpendicular to the second wedge plate (8).

6. A multi-station turntable for an injection molding machine according to claim 5, characterized in that: Two symmetrically arranged guide rods (15) are fixedly connected to one side of the first wedge plate (6), and both guide rods (15) are slidably connected to the bracket (4).

7. A multi-station turntable for an injection molding machine according to claim 6, characterized in that: The inner wall of the bracket (4) is fixedly connected to two symmetrically arranged T-shaped guide plates (16), and the first wedge plate (6) is slidably connected to the T-shaped guide plate (16).

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