A mold connecting assembly of an injection molding machine

Abstract

The utility model relates to injection mold technical field, concretely relates to a mold connecting assembly of injection molding machine, including being located on the movable die positioning seat and fixed die positioning seat of injection molding machine, movable die positioning seat and fixed die positioning seat all are equipped with the mounting groove, the fixed die positioning seat is equipped with the guide rod, when using, drive portion action, pull the shape fixed seat moves away from the fixed die positioning seat direction, movable die and fixed die are under the action of hoisting equipment, its along mounting groove is installed on movable die positioning seat and fixed die positioning seat respectively, then through installation department carries out positioning to the positioning plugboard that the clamping slot is uniformly distributed to the surface, makes it completely insert movable die back pre -set interface, and positioning plugboard acts on the back of mould directly through the through -hole, and positioning rigidity is good, avoids the accumulated error caused by multiple clamping, guarantees movable die and injection molding machine nozzle center alignment, and then avoids the risk of error accumulation.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a mold connection component for an injection molding machine. Background Technology

[0002] In the injection molding process, frequent mold changes are common. Traditional mold installation mainly relies on operators using pressure plates and bolts to manually lock the moving mold and fixed mold onto the moving platen and fixed platen of the injection molding machine, respectively. Existing technologies also exist to speed up the assembly and disassembly of injection molds. This is achieved by setting up an upper mold, a lower mold, a limiting rod, a limiting groove, a fixing rod, and a fixing groove. The upper mold is placed on top of the lower mold, the limiting rod enters the inner cavity of the limiting groove, and then the fixing rod is inserted into the inner cavity of the fixing groove.

[0003] For example, Chinese patent application number CN 202121002764.6 discloses a connecting component for a central channel assembly injection mold, including an upper mold, a lower mold, and four limiting rods. The lower mold is located at the bottom of the upper mold, and the bottom of the limiting rods is fixedly connected to the lower mold. The bottom of the upper mold has a limiting groove that cooperates with the limiting rods. This solves the problem that most existing injection mold upper and lower mold connections use multiple nuts for fixing, but the process of disassembling and assembling the upper and lower molds is cumbersome and difficult for users. However, its accuracy is difficult to guarantee: the mold positioning still relies entirely on manual alignment, which carries the risk of error accumulation. Inaccurate positioning can lead to quality problems such as mold misalignment, product flash, and inaccurate dimensions, and may even damage the mold during mold closing. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a mold connection component for injection molding machines to solve the technical problem that the positioning of the mold in the prior art still relies entirely on manual alignment, which poses a risk of error accumulation. Inaccurate positioning can lead to a series of quality problems such as mold misalignment, product flash, and inaccurate dimensions, and even damage to the mold during mold closing.

[0005] To achieve the above objectives, this utility model provides a mold connection assembly for an injection molding machine, including a moving mold positioning seat and a fixed mold positioning seat disposed on the injection molding machine. Both the moving mold positioning seat and the fixed mold positioning seat are provided with mounting grooves. The fixed mold positioning seat is provided with a guide rod, and the moving mold positioning seat is slidably disposed on the guide rod. The center of the moving mold positioning seat is recessed and has a through hole extending to the back of the moving mold. The mold connection assembly further includes: An inverted C-shaped fixing seat is provided at the side end of the moving mold positioning seat; A positioning plate is provided in the through hole and acts on the back of the moving mold, and the surface of the positioning plate is evenly distributed with slots. A drive unit for moving the C-shaped fixing base; Mounting section for assembling and disassembling the positioning insert.

[0006] Furthermore, there are four guide rods, which surround the moving mold positioning seat and the fixed mold positioning seat.

[0007] Furthermore, the mounting slots are arranged alternately in both the horizontal and vertical directions.

[0008] Furthermore, the driving unit includes at least one driving cylinder mounted on the injection molding machine, the output end of the driving cylinder being hinged to the outer side of the U-shaped fixed seat to drive the moving mold positioning seat to move toward or away from the fixed mold positioning seat.

[0009] Furthermore, the mounting part includes: A base plate disposed in the recessed center of the moving mold positioning seat; A guide groove is provided on the substrate, and the positioning insert is slidably disposed within the guide groove; A sliding post slidably disposed on the substrate; A pressure plate is provided on the sliding column, and a spring is sleeved on the sliding column. One end of the spring abuts against the base plate, and the other end of the spring abuts against the pressure plate.

[0010] Furthermore, the lower end of the pressure plate is provided with a clip, which cooperates with the slot on the positioning plate.

[0011] Furthermore, a sliding groove is provided at the side end of the guide groove, and the pressure plate is slidably disposed in the sliding groove.

[0012] Furthermore, the area between the concave center of the C-shaped fixing seat and the moving mold positioning seat is the operating range, and the positioning insert is placed within the operating range.

[0013] The beneficial effects of this utility model are as follows: During use, the drive unit operates, pulling the C-shaped fixing seat to move away from the fixed mold positioning seat. Under the action of the hoisting equipment, the moving mold and the fixed mold are respectively installed on the moving mold positioning seat and the fixed mold positioning seat along the mounting groove. Then, the positioning insert plate with evenly distributed slots on its surface is positioned by the mounting unit, so that it is fully inserted into the preset interface on the back of the moving mold. The positioning insert plate acts directly on the back of the mold through the through hole, which has good positioning rigidity and avoids the cumulative error caused by multiple clamping. It ensures that the center of the moving mold and the injection nozzle of the injection molding machine are aligned, thereby avoiding the risk of error accumulation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an assembly diagram of the moving mold positioning seat and the mounting part in this utility model; Figure 3 This is an assembly diagram of the positioning insert and the mounting part in this utility model; Figure 4 This is a schematic diagram of the structure of the pressure plate of this utility model.

[0016] The diagram is marked as follows: 1. Moving mold positioning seat; 2. Fixed mold positioning seat; 3. Mounting groove; 4. Guide rod; 5. C-shaped fixing seat; 6. Positioning insert plate; 7. Slot; 8. Drive cylinder; 9. Base plate; 10. Guide groove; 11. Sliding column; 12. Pressure plate; 13. Spring; 14. Clamping head; 15. Slide groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] The first aspect of this utility model provides a mold connection assembly for an injection molding machine, such as... Figure 1-4As shown, the assembly includes a moving mold positioning seat 1 and a fixed mold positioning seat 2 mounted on an injection molding machine. Both the moving mold positioning seat 1 and the fixed mold positioning seat 2 are provided with mounting grooves 3. The fixed mold positioning seat 2 is provided with a guide rod 4. The moving mold positioning seat 1 is slidably mounted on the guide rod 4. The center of the moving mold positioning seat 1 is recessed and has a through hole extending to the back of the moving mold. The mold connection assembly also includes: An inverted C-shaped fixing seat 5 is provided on the side end of the moving mold positioning seat 1; A positioning plate 6 is provided in the through hole and acts on the back of the moving mold. The surface of the positioning plate 6 is evenly distributed with slots 7. A drive unit for moving the U-shaped fixed base 5; The mounting part is used for disassembling and assembling the positioning insert 6.

[0020] In this embodiment, during use, the drive unit operates, pulling the C-shaped fixing seat 5 to move away from the fixed mold positioning seat 2. Under the action of the hoisting equipment, the moving mold and the fixed mold are respectively installed on the moving mold positioning seat 1 and the fixed mold positioning seat 2 along the mounting groove 3. Then, the positioning insert 6 with evenly distributed slots 7 on its surface is positioned by the mounting unit, so that it is completely inserted into the preset interface on the back of the moving mold. The moving mold has been accurately positioned in the horizontal direction. After the drive unit reverses its action, it pushes the C-shaped fixing seat 5 to move towards the fixed mold positioning seat 2. The C-shaped fixing seat 5 drives the moving mold positioning seat 1 to move synchronously. The opening side of the moving mold positioning seat 1 frames the side and back of the moving mold and applies pressure towards the fixed mold, so that the moving mold is tightly attached to the fixed mold. The positioning insert 6 acts directly on the back of the mold through the through hole, which has good positioning rigidity and avoids the cumulative error caused by multiple clamping, ensuring that the center of the moving mold and the injection nozzle of the injection molding machine are aligned.

[0021] In this embodiment, as Figure 1 As shown, there are four guide rods 4, which surround the moving mold positioning seat 1 and the fixed mold positioning seat 2. The four guide rods 4 provide symmetrical and balanced guidance and support, effectively preventing the moving mold positioning seat 1 from tilting or jamming during high-speed movement.

[0022] In this embodiment, as Figure 1 As shown, the mounting slots 3 are arranged alternately in the horizontal and vertical directions, which allows the positioning blocks of the mold to be fixed at any position on the plane, greatly enhancing the adaptability of the equipment to molds of different sizes and specifications.

[0023] In this embodiment, as Figure 1 As shown, the drive unit includes at least one drive cylinder 8 mounted on the injection molding machine. The output end of the drive cylinder 8 is hinged to the outer side of the C-shaped fixed seat 5 to drive the moving mold positioning seat 1 to move toward or away from the fixed mold positioning seat 2. The cylinder body of the drive cylinder 8 is fixed on the injection molding machine, and the end of its piston rod is hinged to the outer side wall of the C-shaped fixed seat 5 by a pin. By controlling the oil inlet and oil return of the drive cylinder 8, the extension and retraction of its piston rod are driven, thereby driving the C-shaped fixed seat 5 to move back and forth.

[0024] In this embodiment, as Figure 3 As shown, the mounting section includes: The substrate 9 is located in the recessed center of the moving mold positioning seat 1; A guide groove 10 is provided on the substrate 9, and a positioning insert 6 is slidably disposed within the guide groove 10; Sliding post 11 is slidably disposed on substrate 9; A pressure plate 12 is mounted on the sliding post 11, and a spring 13 is sleeved on the sliding post 11. One end of the spring 13 abuts against the base plate 9, and the other end of the spring 13 abuts against the pressure plate 12. The lower end of the pressure plate 12 is provided with a locking head 14, which cooperates with the locking groove 7 on the positioning insert plate 6. The positioning insert plate 6 is placed in the guide groove 10 of the base plate 9 to ensure that it can only slide horizontally. The pressure plate 12 is connected to the base plate 9 through the sliding post 11. The spring 13 always applies a downward pressure to the pressure plate, so that the locking head 14 at the lower end of the pressure plate 12 tends to embed downward into the locking groove 7 of the positioning insert plate 6. When it is necessary to replace the positioning insert plate 6 of different specifications, simply overcome the force of the spring 13 and lift the pressure plate 12 upward to slide out the old positioning insert plate 6 and slide in the new one. After releasing the pressure plate 12, it will automatically lock under the action of the spring 13. This process does not require tools and is very convenient.

[0025] In this embodiment, as Figure 3 As shown, a sliding groove 15 is provided on the side end of the guide groove 10, and the pressure plate 12 is slidably disposed in the sliding groove 15.

[0026] In this embodiment, as Figure 2 As shown, the operating area is between the concave center of the C-shaped fixed seat 5 and the moving mold positioning seat 1, and the positioning plate 6 is placed within the operating area.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mold connection assembly for an injection molding machine, comprising a moving mold positioning seat (1) and a fixed mold positioning seat (2) disposed on the injection molding machine, wherein both the moving mold positioning seat (1) and the fixed mold positioning seat (2) are provided with mounting grooves (3), and the fixed mold positioning seat (2) is provided with a guide rod (4), wherein the moving mold positioning seat (1) is slidably disposed on the guide rod (4), characterized in that, The moving mold positioning seat (1) has a recessed center and a through hole extending to the back of the moving mold. The mold connecting assembly also includes: An inverted fixed seat (5) is provided on the side end of the moving mold positioning seat (1); A positioning plate (6) is provided in the through hole and acts on the back of the moving mold. The surface of the positioning plate (6) is evenly distributed with slots (7). A drive unit for moving the C-shaped fixed base (5); Mounting part for assembling and disassembling the positioning insert (6).

2. The mold connection assembly for an injection molding machine according to claim 1, characterized in that, There are four guide rods (4), which surround the moving mold positioning seat (1) and the fixed mold positioning seat (2).

3. The mold connection assembly for an injection molding machine according to claim 1, characterized in that, The mounting slots (3) are arranged alternately in the horizontal and vertical directions.

4. The mold connection assembly for an injection molding machine according to claim 1, characterized in that, The drive unit includes at least one drive cylinder (8) mounted on the injection molding machine. The output end of the drive cylinder (8) is hinged to the outer side of the U-shaped fixed seat (5) to drive the moving mold positioning seat (1) to move toward or away from the fixed mold positioning seat (2).

5. The mold connection assembly for an injection molding machine according to claim 1, characterized in that, The mounting unit includes: A base plate (9) is provided in the recessed middle part of the moving mold positioning seat (1). A guide groove (10) is provided on the substrate (9), and the positioning insert (6) is slidably disposed in the guide groove (10); Sliding post (11) is slidably disposed on the substrate (9). A pressure plate (12) is provided on the sliding column (11), and a spring (13) is sleeved on the sliding column (11). One end of the spring (13) abuts against the base plate (9), and the other end of the spring (13) abuts against the pressure plate (12).

6. The mold connection assembly for an injection molding machine according to claim 5, characterized in that, The lower end of the pressure plate (12) is provided with a clip (14), which cooperates with the slot (7) on the positioning plate (6).

7. A mold connection assembly for an injection molding machine according to claim 5, characterized in that, The guide groove (10) has a sliding groove (15) at its side end, and the pressure plate (12) is slidably disposed in the sliding groove (15).

8. A mold connection assembly for an injection molding machine according to claim 1, characterized in that, The operating area is between the concave center of the C-shaped fixing seat (5) and the moving mold positioning seat (1), and the positioning insert (6) is placed within the operating area.

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