Mould locking mechanism of single-color injection molding machine

Abstract

The utility model discloses a mold locking mechanism of a single-color injection molding machine, which relates to the technical field of injection molding machines and comprises a machine table, a connecting mechanism is arranged on two connecting columns on one side of the machine table, a mold plate is arranged on the connecting mechanism, and a mold moving oil cylinder is arranged at the bottom of the connecting mechanism. The driving end of the mold moving oil cylinder is fixedly connected with a mold locking assembly, the mold locking assembly comprises a wedge block, a first locking block is installed on the side, away from the mold moving oil cylinder, of the wedge block, a first locking hole is formed in the side, away from the mold moving oil cylinder, of the wedge block, a second locking hole is formed in the side, close to the mold locking assembly, of the mold plate, a second locking block is installed in the side, close to the mold locking assembly, of the mold plate, and the first locking block is matched with the second locking hole. The second lock block is matched with the first lock hole; according to the utility model, the mold moving oil cylinder pushes the first locking block to be inserted into the second locking hole, and the second locking block is inserted into the first locking hole, so that the mold locking assembly is tightly connected with the mold plate, and the mold locking action is completed.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a mold clamping mechanism for a single-color injection molding machine. Background Technology

[0002] In modern manufacturing, injection molding technology, with its advantages of high efficiency, precision, and the ability to mass-produce complex plastic products, is widely used in many fields such as automobiles, electronics, packaging, and daily necessities. Single-color injection molding machines, as an important type of injection molding equipment, are mainly used to produce plastic products of a single color. The clamping mechanism, as the core component of a single-color injection molding machine, plays a decisive role in the smooth progress of the injection molding process and the quality of the product.

[0003] However, traditional clamping mechanisms have certain shortcomings in terms of clamping stability, connection reliability, and ease of installation. For example, loosening can easily occur during the clamping process, leading to problems such as flash and dimensional deviations in injection molded products; the connection structure is not stable enough and is prone to deformation during long-term use; and the installation process is relatively complex, which is not conducive to the rapid debugging and replacement of equipment.

[0004] To address this issue, we designed a clamping mechanism for a single-color injection molding machine. Utility Model Content

[0005] The purpose of this invention is to provide a mold clamping mechanism for a single-color injection molding machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a mold-locking mechanism for a single-color injection molding machine, including a machine base. A connecting mechanism is provided on two connecting columns on one side of the machine base. A template is provided on the connecting mechanism. A mold-moving cylinder is provided at the bottom of the connecting mechanism. A mold-locking assembly is fixedly connected to the driving end of the mold-moving cylinder. The mold-locking assembly includes a wedge. A first locking block is installed on the side of the wedge away from the mold-moving cylinder and a first locking hole is opened. A second locking hole is opened on the side of the template close to the mold-locking assembly and a second locking block is installed. The first locking block and the second locking hole are adapted to each other. The second locking block and the first locking hole are adapted to each other.

[0007] Furthermore, there are two of each of the first lock block and the first lock hole, and there are also two of each of the second lock hole and the second lock block.

[0008] Furthermore, a first fixing plate and a second fixing plate are fixedly connected to the bottom two sides of the fixed end of the mold moving cylinder, respectively. A limit rod is slidably connected to the second fixing plate. One end of the limit rod is fixedly connected to the mold locking assembly. The limit rod is located at the bottom of the drive end of the mold moving cylinder.

[0009] Furthermore, the connecting mechanism includes a lower connecting plate and an upper connecting plate, with the bottom ends of the first fixing plate and the second fixing plate fixedly connected to the top end of the lower connecting plate.

[0010] Furthermore, a lower clamping plate is fixedly connected to one end of the upper connecting plate, and an upper clamping plate that is compatible with the lower clamping plate is threaded to the top end of the lower clamping plate.

[0011] Furthermore, the mating surfaces of the lower and upper card plates are provided with card holes, which are inserted into a connecting post on one side of the machine.

[0012] Furthermore, a locking hole is also provided at the bottom end of the lower connecting plate, and the locking hole is engaged with another connecting column on one side of the machine.

[0013] Furthermore, connecting rods are hinged to both sides of the upper connecting plate, and the other ends of the two connecting rods are hinged to both sides of the lower connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this design, the tight fit between multiple locking blocks and locking holes during injection molding evenly distributes the pressure on the mold, reducing displacement or loosening caused by uneven stress. Compared to traditional single-block or limited-point locking methods, this multi-point design improves mold stability several times over, ensuring a tight fit under high temperature, high pressure, and the impact of molten plastic, providing a solid guarantee for the production of high-precision plastic products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the mold-moving cylinder of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the template of this utility model.

[0020] In the diagram: 1. Machine base; 2. Connecting mechanism; 21. Lower connecting plate; 22. Upper connecting plate; 23. Lower clamping plate; 24. Upper clamping plate; 25. Clamping hole; 26. Connecting rod; 3. Mold moving cylinder; 31. First fixing plate; 32. Second fixing plate; 33. Limiting rod; 4. Mold locking assembly; 41. Wedge block; 42. First locking block; 43. First locking hole; 5. Template; 51. Second locking hole; 52. Second locking block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a mold-locking mechanism for a single-color injection molding machine, including a machine base 1. A connecting mechanism 2 is provided on two connecting columns on one side of the machine base 1. A template 5 is provided on the connecting mechanism 2. A mold-moving cylinder 3 is provided at the bottom of the connecting mechanism 2. A mold-locking assembly 4 is fixedly connected to the driving end of the mold-moving cylinder 3. The mold-locking assembly 4 includes a wedge block 41. A first locking block 42 is installed on the side of the wedge block 41 away from the mold-moving cylinder 3, and a first locking hole 43 is opened. A second locking hole 51 is opened on the side of the template 5 close to the mold-locking assembly 4, and a second locking block 52 is installed. The first locking block 42 and the second locking hole 51 are adapted to each other. The second locking block 52 and the first locking hole 43 are adapted to each other. There are two first locking blocks 42 and two first locking holes 43. There are also two second locking holes 51 and two second locking blocks 52.

[0023] In practice, when mold clamping is required, the mold-moving cylinder 3 is activated, and its drive end pushes the mold clamping assembly 4 towards the template 5. During this movement, the first locking block 42 on the mold clamping assembly 4 gradually aligns with the second locking hole 51 on the template 5, while the second locking block 52 on the template 5 gradually aligns with the first locking hole 43 on the mold clamping assembly 4. As the mold-moving cylinder 3 continues to advance, the first locking block 42 inserts into the second locking hole 51, and the second locking block 52 inserts into the first locking hole 43, achieving a tight connection between the mold clamping assembly 4 and the template 5, thus completing the mold clamping action. This method of matching and connecting multiple locking blocks and holes effectively improves the stability and reliability of mold clamping, ensuring that the mold does not loosen during injection molding and guaranteeing the quality of the injection molded product.

[0024] See Figure 3 The bottom sides of the fixed end of the mold moving cylinder 3 are respectively fixedly connected to a first fixed plate 31 and a second fixed plate 32. A limit rod 33 is slidably connected on the second fixed plate 32. One end of the limit rod 33 is fixedly connected to the mold locking assembly 4. The limit rod 33 is set at the bottom of the drive end of the mold moving cylinder 3. The connecting mechanism 2 includes a lower connecting plate 21 and an upper connecting plate 22. The bottom ends of the first fixed plate 31 and the second fixed plate 32 are fixedly connected to the top end of the lower connecting plate 21.

[0025] In practice, as the moving mold cylinder 3 drives the locking assembly 4, the limiting rod 33 slides on the second fixed plate 32. The limiting rod 33 serves as a guide and limiter, ensuring that the locking assembly 4 moves in a straight line, preventing deviation during movement, and ensuring that the locking assembly 4 can accurately lock with the template 5. At the same time, the first fixed plate 31 and the second fixed plate 32 firmly fix the moving mold cylinder 3 to the lower connecting plate 21, enhancing the stability of the moving mold cylinder 3 during operation and reducing the impact of vibration and other factors on the locking operation.

[0026] See Figure 2 One end of the upper connecting plate 22 is fixedly connected to the lower clamping plate 23. The top end of the lower clamping plate 23 is threadedly connected to the upper clamping plate 24, which is compatible with the lower clamping plate 23. The mating surfaces of the lower clamping plate 23 and the upper clamping plate 24 are provided with clamping holes 25. The clamping holes 25 are inserted into a connecting post on one side of the machine base 1. The bottom end of the lower connecting plate 21 is also provided with clamping holes 25. The clamping holes 25 are clamped into another connecting post on one side of the machine base 1. Both sides of the upper connecting plate 22 are hinged with connecting rods 26. The other ends of the two connecting rods 26 are hinged to both sides of the lower connecting plate 21.

[0027] In practical implementation, when installing the mold-locking mechanism, first, the locking hole 25 at the bottom of the lower connecting plate 21 is engaged with a connecting post on one side of the machine base 1. Then, the lower locking plate 23 is placed on the connecting post on the other side of the machine base 1. Next, the upper locking plate 24 is installed on the lower locking plate 23 by means of threaded connection, so that the locking hole 25 is inserted into the connecting post, thereby firmly installing the connecting mechanism 2 on the machine base 1. The upper connecting plate 22 and the lower connecting plate 21 are hinged by a connecting rod 26. The connecting rod 26 can enhance the structural stability of the connecting mechanism 2, so that the connecting mechanism 2 maintains its overall rigidity and stability when subjected to the forces of the mold-moving cylinder 3 and the mold-locking assembly 4.

[0028] Working principle: When mold clamping is required, the mold moving cylinder 3 is activated. The drive end of the mold moving cylinder 3 pushes the mold clamping assembly 4 towards the template 5. The first locking block 42 on the mold clamping assembly 4 gradually aligns with the second locking hole 51 on the template 5, while the second locking block 52 on the template 5 gradually aligns with the first locking hole 43 on the mold clamping assembly 4. As the mold moving cylinder 3 continues to advance, the first locking block 42 inserts into the second locking hole 51, and the second locking block 52 inserts into the first locking hole 43, achieving a tight connection between the mold clamping assembly 4 and the template 5, thus completing the mold clamping action. After injection molding is completed, the drive end of the mold moving cylinder 3 moves in the opposite direction, causing the mold clamping assembly 4 to separate from the template 5, completing the mold opening action.

Claims

1. A locking mechanism of a single color injection molding machine comprising a machine bed (1), characterized in that, The connecting mechanism (2) is arranged on two connecting columns on one side of the machine table (1), a template (5) is arranged on the connecting mechanism (2), a mold moving oil cylinder (3) is arranged at the bottom of the connecting mechanism (2), a mold locking assembly (4) is fixedly connected to the driving end of the mold moving oil cylinder (3), the mold locking assembly (4) comprises a wedge block (41), a first locking block (42) is mounted on the side of the wedge block (41) away from the mold moving oil cylinder (3), and a first locking hole (43) is formed, a second locking hole (51) is formed on the side of the template (5) close to the mold locking assembly (4), and a second locking block (52) is mounted, the first locking block (42) and the second locking hole (51) are matched, and the second locking block (52) and the first locking hole (43) are matched.

2. A clamp mechanism for a single color injection molding machine as defined in claim 1 wherein: The number of the first locking block (42) and the first locking hole (43) is two, and the number of the second locking hole (51) and the second locking block (52) is also two.

3. A clamp mechanism for a single color injection molding machine as defined in claim 2 wherein: The bottom of the fixed end of the mold moving oil cylinder (3) is fixedly connected with a first fixed plate (31) and a second fixed plate (32) on both sides, a limiting rod (33) is slidably connected to the second fixed plate (32), one end of the limiting rod (33) is fixedly connected to the mold locking assembly (4), and the limiting rod (33) is arranged at the bottom of the driving end of the mold moving oil cylinder (3).

4. A clamp mechanism for a single color injection molding machine as defined in claim 3 wherein: The connecting mechanism (2) comprises a lower connecting plate (21) and an upper connecting plate (22), and the bottom ends of the first fixed plate (31) and the second fixed plate (32) are fixedly connected to the top end of the lower connecting plate (21).

5. A clamp mechanism for a single color injection molding machine as defined in claim 4 wherein: One end of the upper connecting plate (22) is fixedly connected with a lower clamping plate (23), and the top end of the lower clamping plate (23) is threadedly connected with an upper clamping plate (24) matched with the lower clamping plate (23).

6. A clamp mechanism for a single color injection molding machine as defined in claim 5 wherein: The abutting surfaces of the lower clamping plate (23) and the upper clamping plate (24) are provided with clamping holes (25), and the clamping holes (25) are inserted into one of the connecting columns on one side of the machine table (1).

7. A clamp mechanism for a single color injection molding machine as defined in claim 6 wherein: The bottom end of the lower connecting plate (21) is also provided with a clamping hole (25), and the clamping hole (25) is clamped on the other connecting column on one side of the machine table (1).

8. A clamp mechanism for a single color injection molding machine as defined in claim 7 wherein: The upper connecting plate (22) is hingedly connected with connecting rods (26) on both sides, and the other ends of the two connecting rods (26) are hingedly connected to both sides of the lower connecting plate (21).

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