Stroke positioning mechanism for mold opening and mold

Abstract

The utility model relates to a stroke positioning mechanism for mold opening and a mold, the stroke positioning mechanism comprises a connecting cylinder and a connecting seat, and a positioning assembly is arranged on the connecting cylinder; wherein the positioning assembly comprises two connecting plates, an adjusting rod is rotatably arranged on the inner side of the connecting seat, two limiting rods are arranged on the outer side of the adjusting rod, a connecting column is movably arranged in the connecting cylinder, and two limiting plates are arranged on the lower end face of the connecting plate at the bottom. According to the stroke positioning mechanism for mold opening and the mold, in the mold opening process of the mold, the limiting rod slides into the limiting groove formed in the limiting plate, the stroke is positioned in the mold opening process of the mold, the stability is good when the upper mold base and the lower mold base are rapidly opened till the limited stroke is suddenly stopped, and the stability and reliability can be effectively improved; and the situation of high noise caused by sudden stop of the template during mold opening is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a stroke positioning mechanism for mold opening and a mold. Background Technology

[0002] Injection molding is a method of industrial product manufacturing. Products are usually made using rubber injection molding and plastic injection molding. The current injection molding production is mainly accomplished through the combined action of injection molding machines and molds. During operation, the molten material is first squeezed into the mold by the injection molding machine, and then formed in the cavity between the fixed mold and the moving mold. After cooling, the molded product is obtained, and finally the mold is opened to remove the product.

[0003] However, in existing molds, the upper and lower molds are separated by spring force and nylon plug tension during mold opening, and the opening distance is controlled by the length of the limit screw, thereby positioning the mold opening stroke. This structure is prone to wear and failure of the plug when there are many production runs and the mold temperature is high. In addition, the sudden stop of the mold when the template is pulled to the end is noisy.

[0004] Therefore, to solve the above problems, a stroke positioning mechanism and a mold for mold opening are proposed. Utility Model Content

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a stroke positioning mechanism and a mold for mold opening, which has the advantage of positioning the mold opening stroke.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stroke positioning mechanism for mold opening, comprising a connecting cylinder and a connecting seat, wherein a positioning component is provided on the connecting cylinder;

[0007] The positioning component includes two connecting plates, an adjusting rod is rotatably arranged on the inner side of the connecting seat, two limiting rods are arranged on the outer side of the adjusting rod, a connecting column is movably arranged inside the connecting cylinder, and two limiting plates are arranged on the lower end face of the bottom connecting plate, with limiting grooves opened inside the limiting plates.

[0008] As a further improvement of this utility model, the positioning component also includes a threaded rod rotatably disposed inside the connecting cylinder, a worm gear being disposed on the outer side of the threaded rod, and a worm being rotatably disposed inside the connecting cylinder.

[0009] As a further improvement of this utility model, the worm and the worm wheel mesh with each other, and the interior of the connecting column is provided with a threaded groove that is threadedly connected to the threaded rod.

[0010] As a further improvement of this utility model, the inner side of the connecting cylinder is provided with two positioning grooves, and the outer side of the connecting column is provided with two positioning blocks that are slidably connected to the positioning grooves.

[0011] As a further improvement of this utility model, the adjusting rod is located between the two limiting plates, and one end of the worm gear passes through and extends to the outside of the connecting cylinder.

[0012] As a further improvement of this utility model, a buffer pad is provided on the limiting groove, the two connecting plates are connected by bolts, and a torsion spring is provided between the adjusting rod and the inner wall of the connecting seat.

[0013] Based on this, the present invention also provides a mold, which includes the above-mentioned stroke positioning mechanism for mold opening, and also includes an upper mold base and a lower mold base, wherein the outer sides of the upper mold base and the lower mold base are provided with two lifting rings.

[0014] The connecting cylinder is disposed on the upper mold base, and the connecting seat is disposed on the lower mold base.

[0015] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0016] 1. The stroke positioning mechanism for mold opening can slide the limiting rod into the limiting groove on the limiting plate during the mold opening process to position the stroke. This ensures good stability when the upper and lower mold bases open quickly to the limited stroke and then stop, effectively improving stability and reliability, reducing the noise caused by the mold plate during emergency stop, and enhancing the practicality of the device.

[0017] 2. The stroke positioning mechanism and mold used for mold opening facilitate the lifting and transportation of the entire mold by means of lifting rings during the use of the upper and lower mold bases, making it convenient for users. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 3 This is a cross-sectional view of the connecting cylinder structure of this utility model.

[0021] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Upper mold base; 2. Lower mold base; 3. Lifting ring; 4. Connecting cylinder; 5. Connecting column; 6. Worm gear; 7. Connecting plate; 8. Limiting plate; 9. Connecting seat; 10. Adjusting rod; 11. Limiting rod; 12. Limiting groove; 13. Threaded rod; 14. Worm gear; 15. Positioning block; 16. Positioning groove. Detailed Implementation

[0022] 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.

[0023] In the embodiments, by Figure 1-3 A stroke positioning mechanism for mold opening is provided, comprising a connecting cylinder 4 and a connecting seat 9, wherein a positioning component is provided on the connecting cylinder 4;

[0024] A mold includes the stroke positioning mechanism for mold opening in the preferred embodiment described above, and also includes an upper mold base 1 and a lower mold base 2, with two lifting rings 3 provided on the outer side of both the upper mold base 1 and the lower mold base 2.

[0025] During the use of the upper mold base 1 and the lower mold base 2, the lifting ring 3 facilitates the lifting and transportation of the entire mold, making it convenient for users.

[0026] The connecting cylinder 4 is set on the upper mold base 1, and the connecting seat 9 is set on the lower mold base 2.

[0027] The positioning component includes two connecting plates 7, an adjusting rod 10 rotatably mounted on the inner side of the connecting seat 9, and two limiting rods 11 mounted on the outer side of the adjusting rod 10.

[0028] The connecting cylinder 4 has a connecting post 5 inside, and two positioning slots 16 are opened on the inner side of the connecting cylinder 4. Two positioning blocks 15 are provided on the outer side of the connecting post 5 and are slidably connected to the positioning slots 16.

[0029] It should be noted that the connecting column 5 slides in the positioning groove 16 opened on the connecting cylinder 4 through the positioning block 15, which can limit and guide the connecting column 5 during its movement, so that the connecting column 5 moves in the vertical direction.

[0030] Please see Figure 1-2The bottom connecting plate 7 has two limiting plates 8 on its lower end surface. The limiting plates 8 have limiting grooves 12 inside, and the adjusting rod 10 is located between the two limiting plates 8.

[0031] A buffer pad is provided on the limiting groove 12. The two connecting plates 7 are connected by bolts, so that the two connecting plates 7 can be disassembled. The buffer pad provided on the limiting groove 12 can buffer the impact between the limiting plate 8 and the limiting rod 11, and reduce the mechanical fatigue damage of the limiting rod 11.

[0032] In addition, a torsion spring is provided between the adjusting rod 10 and the inner wall of the connecting seat 9. Through the action of the torsion spring, the adjusting rod 10 can rotate and drive the limiting rod 11 to slide into the limiting groove 12 during the movement of the limiting plate 8.

[0033] In actual use, the upper mold base 1 is moved upward to open the mold. During the movement of the upper mold base 1, the limiting plate 8 moves with it. When the upper mold base 1 moves to a certain position, the adjusting rod 10 rotates, causing the limiting rod 11 on the outside of the adjusting rod 10 to slide into the inner side of the limiting groove 12. By sliding the limiting rod 11 on the inner side of the limiting groove 12, the stroke of the mold opening can be positioned, so that the upper mold base 1 and the lower mold base 2 can be opened quickly to the limited stroke and then stop with good stability.

[0034] Please see Figure 3 The positioning assembly also includes a threaded rod 13 rotatably disposed inside the connecting cylinder 4, a worm gear 14 disposed on the outer side of the threaded rod 13, and a worm 6 rotatably disposed inside the connecting cylinder 4, with one end of the worm 6 passing through and extending to the outer side of the connecting cylinder 4.

[0035] The worm 6 meshes with the worm wheel 14, and the connecting column 5 has a threaded groove inside that is threaded to the threaded rod 13.

[0036] In actual use, by rotating the worm gear 6, the connecting column 5 can be moved, thereby adjusting the position of the limiting plate 8, which makes it convenient to adjust the stroke of the mold when it opens according to the usage requirements, making it convenient for users to use.

[0037] The working principle of the above embodiments is as follows:

[0038] During the mold opening process, the upper mold base 1 is moved upward to open the mold. During the movement of the upper mold base 1, the limiting plate 8 moves accordingly. When the upper mold base 1 moves to a certain position, the adjusting rod 10 rotates, causing the limiting rod 11 on the outside of the adjusting rod 10 to slide into the inner side of the limiting groove 12. By sliding the limiting rod 11 on the inner side of the limiting groove 12, the stroke during mold opening can be positioned, so that the upper mold base 1 and the lower mold base 2 can be opened quickly to the limited stroke and then stop with good stability. This can effectively improve stability and reliability, and reduce the loud noise of the mold plate during the emergency stop when opening the mold. In addition, by rotating the worm gear 6, the worm wheel 14 meshing with the worm gear 6 is driven to rotate through the threaded rod 13, so that the connecting column 5 slides in the positioning groove 16 opened on the connecting cylinder 4 through the positioning block 15, and the connecting column 5 moves accordingly, thereby adjusting the position of the limiting plate 8. This makes it easy to adjust the stroke during mold opening according to the usage requirements, which is convenient for users.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stroke positioning mechanism for mold opening, characterized in that: It includes a connecting cylinder (4) and a connecting seat (9), and the connecting cylinder (4) is provided with a positioning component; The positioning component includes two connecting plates (7), an adjusting rod (10) is rotatably provided on the inner side of the connecting seat (9), two limiting rods (11) are provided on the outer side of the adjusting rod (10), a connecting column (5) is movably provided inside the connecting cylinder (4), two limiting plates (8) are provided on the lower end face of the bottom connecting plate (7), and a limiting groove (12) is opened inside the limiting plate (8).

2. The stroke positioning mechanism for mold opening according to claim 1, characterized in that: The positioning assembly also includes a threaded rod (13) rotatably disposed inside the connecting cylinder (4), a worm gear (14) is disposed on the outside of the threaded rod (13), and a worm (6) is rotatably disposed inside the connecting cylinder (4).

3. The stroke positioning mechanism for mold opening according to claim 2, characterized in that: The worm (6) meshes with the worm wheel (14), and the connecting column (5) has a threaded groove inside that is threaded to the threaded rod (13).

4. The stroke positioning mechanism for mold opening according to claim 1, characterized in that: The inner side of the connecting cylinder (4) is provided with two positioning grooves (16), and the outer side of the connecting column (5) is provided with two positioning blocks (15) that are slidably connected to the positioning grooves (16).

5. The stroke positioning mechanism for mold opening according to claim 2, characterized in that: The adjusting rod (10) is located between the two limiting plates (8), and one end of the worm gear (6) passes through and extends to the outside of the connecting cylinder (4).

6. The stroke positioning mechanism for mold opening according to claim 1, characterized in that: A buffer pad is provided on the limiting groove (12), the two connecting plates (7) are connected by bolts, and a torsion spring is provided between the adjusting rod (10) and the inner wall of the connecting seat (9).

7. A mold, characterized in that: It includes the stroke positioning mechanism for mold opening as described in any one of claims 1-6, and also includes an upper mold base (1) and a lower mold base (2), wherein two lifting rings (3) are provided on the outer side of both the upper mold base (1) and the lower mold base (2); The connecting cylinder (4) is disposed on the upper mold base (1), and the connecting seat (9) is disposed on the lower mold base (2).

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