Local extrusion mechanism of mold

Abstract

The utility model discloses a local extrusion mechanism of a die, belongs to the technical field of die-casting dies, and aims to solve the problem that an extrusion pin of the local extrusion mechanism is relatively complicated to replace. A proper extrusion head is selected through a sliding block, a limiting block knob, a threaded rod, a pointer and scale teeth, a sliding groove in a connecting base is in sliding connection with a sliding block at the bottom end of a mounting base, and due to the fact that an inclined matched spring A is arranged at one end of each limiting block, when the sliding grooves are completely connected with the sliding blocks, the limiting blocks are all connected with the limiting grooves in a clamped mode; according to the position needing to be extruded, a rotary knob is rotated, a threaded rod is driven to rotate, under the action of threaded connection, a threaded sleeve drives an air cylinder to move integrally, and a pointer and scale teeth are matched to adjust the position of an extrusion head integrally; the flexibility of the local extrusion mechanism is improved, the application range of the local extrusion mechanism is widened, and meanwhile the extrusion head is necessarily replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a local extrusion mechanism of a mold. Background Art

[0002] The local extrusion mechanism is a common component in mold design. It is mainly used to achieve local deformation of a specific area of ​​the material to achieve a specific geometric shape or enhance the material properties. This mechanism is usually used in processes such as metal forming, plastic injection molding, and composite material molding. The working principle of the local extrusion mechanism is to apply pressure to a local part of the workpiece through one or more extrusion heads (or extrusion rods), forcing the material to flow and deform within a limited space. The design and layout of the extrusion head can be customized according to the desired shape. For example, it can be cylindrical, conical, flat, or other special shapes.

[0003] The traditional local extrusion mechanism uses a hydraulic cylinder to push the extrusion pin to extrude and densify. In order to fix the existing extrusion head with the cylinder base plate mounting plate, it is usually fixed with bolts, and multiple sets of bolts are used for fixation. However, due to different product structures, the shape of the extrusion pin used will also be different, and the extrusion pin needs to be replaced. The method of repeatedly turning the bolt knob is more cumbersome in practice. In order to improve this situation, it is necessary to design a local extrusion mechanism of the mold to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a local extrusion mechanism of a mold to solve the problem of the complicated replacement of the extrusion pins of the existing local extrusion mechanism mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a local extrusion mechanism of a mold, comprising a mounting frame, a mounting groove A is provided inside the mounting frame, and a threaded rod is rotatably connected to the inside of the mounting groove A, a threaded sleeve is threadedly connected to the outside of the threaded rod, a knob is rotatably connected to one side of the mounting frame, and the knob is fixedly connected to one side of the threaded rod, a cylinder is fixed to the bottom end of the threaded sleeve, and a connecting rod is fixed to the telescopic end of the cylinder, a mounting seat is provided on the outside of the connecting rod, and a buffer mechanism is provided inside the mounting seat, the mounting seat is protected as a whole by the buffer mechanism, the outer side of the mounting seat is slidably connected to the connecting seat, and the bottom end of the connecting seat is fixed There is an extrusion head, and a mounting groove B is provided inside the mounting seat, and two groups of mounting grooves B are provided opposite to each other. Springs A are provided in the two groups of mounting grooves B, and a movable plate is fixed to the other end of the spring A, and a limiting block is provided on the side of the movable plate away from the spring A. A movable rod is fixed to the top of the movable plate, and the movable rod extends to the outside of the mounting seat, a connecting groove is provided inside the connecting seat, and the inner side of the connecting groove is fitted with the outer wall of the bottom of the mounting seat, a limiting groove is opened inside the connecting seat, and the limiting groove is located on the inner side wall of the connecting groove, and the limiting grooves are engaged with the limiting blocks, a pointer is fixed to one end of the cylinder, and a scale tooth is provided at one end of the mounting frame.

[0006] Preferably, the buffer mechanism includes a movable groove opened at the top of the mounting seat, a spring B is fixed inside the movable groove, the other end of the spring B is fixedly connected to the bottom end of the connecting rod, a damping block is fixed to the outside of the connecting rod, a sliding groove is opened inside the mounting seat, and the sliding grooves are all slidably connected to the damping block, and the sliding grooves are arranged on the inner wall of the movable groove.

[0007] Preferably, the damping block and the connecting rod are arranged in a cross shape, the sliding groove is arranged in a cross shape with the moving groove inside the mounting seat, the cross-sectional size of the damping block is adapted to the cross-sectional size of the sliding groove, the outer side of the damping block is tightly fitted with the inner wall of the sliding groove, and the spring B is always in a compressed state.

[0008] Preferably, the limit blocks are provided in two groups, each group of the limit blocks is provided with three limit blocks, and the limit blocks are provided in an inclined shape at one end close to the connecting seat.

[0009] Preferably, a slider is fixed to the bottom end of the mounting seat, a sliding groove is provided at the top end of the inner surface of the connecting seat, and the sliding groove is slidably connected to the slider, and the sliding groove is located at the bottom end of the connecting groove.

[0010] Preferably, the size of the chute is adapted to the size of the slider, and the cross-sections of the chute and the slider are both arranged to be trapezoidal.

[0011] Preferably, a thread groove is provided inside the mounting frame, and the thread groove is symmetrically arranged with respect to the central axis of the mounting frame.

[0012] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0013] Through the interactive connection between the slide groove and the slider, the initial connection between the extrusion heads of different shapes and the mounting seat is achieved as a whole, and the connection between the mounting seat and the connecting seat is limited under the elastic expansion and contraction action of the spring A, which facilitates the fixation of extrusion heads of different shapes and sizes to the mounting seat, and realizes the necessary replacement of the extrusion head. The partial replacement reduces the overall maintenance cost. The knob and the threaded rod are combined with the scale teeth and the pointer to adjust the overall position of the extrusion head to adapt to different molds, thereby improving the flexibility of the local extrusion mechanism and increasing the scope of application of the local extrusion mechanism.

[0014] The elastic expansion and contraction of spring B and the anti-slip effect of the damping block provide a certain buffering protection for the die extrusion, thus preventing the extrusion head from directly extruding the die and causing damage to the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the formal cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the mounting base of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable plate distribution of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Explanation of the reference numerals in the figure: 1. Mounting frame; 2. Threaded rod; 3. Threaded sleeve; 4. Knob; 5. Cylinder; 6. Connecting rod; 7. Mounting seat; 8. Connecting seat; 9. Slide groove; 10. Slider; 11. Spring A; 12. Moving plate; 13. Limiting groove; 14. Connecting groove; 15. Spring B; 16. Sliding groove; 17. Damping block; 18. Limiting block; 19. Moving rod; 20. Scale teeth; 21. Pointer; 22. Threaded groove; 23. Extrusion head. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0023] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model is a local extrusion mechanism of a mold, including a mounting frame 1, a mounting groove A is provided inside the mounting frame 1, and a threaded rod 2 is rotatably connected to the inside of the mounting groove A, and a threaded sleeve 3 is threadedly connected to the outside of the threaded rod 2, a knob 4 is rotatably connected to one side of the mounting frame 1, and the knob 4 is fixedly connected to one side of the threaded rod 2, a cylinder 5 is fixed to the bottom end of the threaded sleeve 3, and a connecting rod 6 is fixed to the telescopic end of the cylinder 5, a mounting seat 7 is provided on the outside of the connecting rod 6, and a buffer mechanism is provided inside the mounting seat 7 to protect the mounting seat 7 as a whole by the buffer mechanism, a connecting seat 8 is slidably connected to the outside of the mounting seat 7, and an extrusion head 23 is fixed to the bottom end of the connecting seat 8, and a mounting seat 7 is provided inside. Mounting slot B, and there are two groups of mounting slots B set opposite to each other, springs A11 are set in both groups of mounting slots B, and a movable plate 12 is fixed to the other end of the spring A11, and a limiting block 18 is set on the side of the movable plate 12 away from the spring A11, and a movable rod 19 is fixed to the top of the movable plate 12, and the movable rod 19 extends to the outside of the mounting seat 7, a connecting groove 14 is set inside the connecting seat 8, and the inner side of the connecting groove 14 is in contact with the outer wall of the bottom of the mounting seat 7, a limiting groove 13 is opened inside the connecting seat 8, and the limiting groove 13 is located on the inner wall of the connecting groove 14, and the limiting grooves 13 are engaged with the limiting blocks 18, a pointer 21 is fixed to one end of the cylinder 5, and a scale tooth 20 is set at one end of the mounting frame 1.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example 1:

[0026] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4, there are two groups of limit blocks 18, each group of limit blocks 18 is provided with three, and the limit block 18 is arranged in an inclined shape at one end close to the connecting seat 8; a slider 10 is fixed to the bottom end of the mounting seat 7, and a slide groove 9 is provided at the top end of the inner surface of the connecting seat 8, and the slide groove 9 is slidably connected to the slider 10, and the slide groove 9 is located at the bottom end of the connecting groove 14; the size of the slide groove 9 is adapted to the size of the slider 10, and the cross-section of the slide groove 9 and the cross-section of the slider 10 are both trapezoidal; a threaded groove 22 is provided inside the mounting frame 1, and the threaded groove 22 is symmetrically arranged about the central axis of the mounting frame 1.

[0027] In this embodiment, when the local extrusion mechanism needs to be used, the mounting frame 1 is first fixed to the mold as a whole by fixing bolts and cooperating with the threaded groove 22. According to the shape of the mold, a suitable extrusion head 23 is selected, and the slide groove 9 inside the corresponding connecting seat 8 is slidably connected with the slider 10 at the bottom end of the mounting seat 7. During the sliding connection between the slide groove 9 and the slider 10, the connecting groove 14 is continuously connected to the mounting seat 7. Since one end of the limit block 18 is arranged in an inclined shape, under the elastic action of the spring A, when the slide groove 9 and the slider 10 are fully connected, the limit block 18 is engaged with the limit groove 13 to limit and reinforce the connection between the connecting seat 8 and the mounting seat 7 as a whole. According to the position of extrusion required, the knob 4 is turned to drive the threaded rod 2 to rotate. Under the action of the threaded connection, the threaded sleeve 3 drives the cylinder 5 to move as a whole, and cooperates with the pointer 21 and the scale tooth 20 to adjust the position of the extrusion head 23 as a whole, thereby improving the flexibility of the local extrusion mechanism and increasing the scope of application of the local extrusion mechanism. At the same time, the extrusion head 23 can be replaced as necessary, and local replacement reduces the overall maintenance cost.

[0028] Example 2:

[0029] Combine Figure 1 and Figure 2 The buffer mechanism includes a movable groove opened at the top of the mounting seat 7, a spring B15 is fixed inside the movable groove, the other end of the spring B15 is fixedly connected to the bottom end of the connecting rod 6, a damping block 17 is fixed to the outside of the connecting rod 6, a sliding groove 16 is opened inside the mounting seat 7, and the sliding grooves 16 are all slidably connected to the damping block 17, and the sliding grooves 16 are arranged on the inner wall of the movable groove; the damping block 17 and the connecting rod 6 are arranged in a cross shape, and the sliding grooves 16 are arranged in a cross shape with the movable groove inside the mounting seat 7, the cross-sectional size of the damping block 17 is adapted to the cross-sectional size of the sliding groove 16, the outer side of the damping block 17 is tightly fitted with the inner wall of the sliding groove 16, and the spring B15 is always in a compressed state.

[0030] In this embodiment, when the cylinder 5 is started and the extrusion head 23 is lowered for extrusion, the elastic effect of the spring B15 in the buffer mechanism and the anti-slip effect of the damping block 17 provide a certain buffering protection for the mold extrusion, thereby preventing the extrusion head 23 from directly and rigidly extruding the mold and causing damage to the mold.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A local extrusion mechanism for a mold, comprising a mounting frame (1), characterized in that: The interior of the mounting frame (1) is provided with a mounting groove A, and the interior of the mounting groove A is rotatably connected to a threaded rod (2), the outer side of the threaded rod (2) is threadedly connected to a threaded sleeve (3), one side of the mounting frame (1) is rotatably connected to a knob (4), and the knob (4) is fixedly connected to one side of the threaded rod (2), the bottom end of the threaded sleeve (3) is fixed with a cylinder (5), and the telescopic end of the cylinder (5) is fixed with a connecting rod (6), the outer side of the connecting rod (6) is provided with a mounting seat (7), and the interior of the mounting seat (7) is provided with a buffer mechanism, and the mounting seat (7) is protected as a whole by the buffer mechanism, the outer side of the mounting seat (7) is slidably connected to a connecting seat (8), and the bottom end of the connecting seat (8) is fixed with an extrusion head (23), the interior of the mounting seat (7) is provided with a mounting groove B, and the mounting groove B is provided with two sets of opposite , a spring A (11) is provided in each of the two groups of mounting grooves B, a movable plate (12) is fixed to the other end of the spring A (11), and a limiting block (18) is provided on the side of the movable plate (12) away from the spring A (11), a movable rod (19) is fixed to the top of the movable plate (12), and the movable rod (19) extends to the outside of the mounting seat (7), a connecting groove (14) is provided inside the connecting seat (8), and the inner side of the connecting groove (14) is in contact with the outer wall of the bottom of the mounting seat (7), a limiting groove (13) is provided inside the connecting seat (8), and the limiting groove (13) is located on the inner side wall of the connecting groove (14), and the limiting groove (13) is engaged with the limiting block (18), a pointer (21) is fixed to one end of the cylinder (5), and a scale tooth (20) is provided at one end of the mounting frame (1).

2. The local extrusion mechanism of a mold according to claim 1, characterized in that: The buffer mechanism includes a movable groove provided on the top of the mounting seat (7), a spring B (15) is fixed inside the movable groove, the other end of the spring B (15) is fixedly connected to the bottom end of the connecting rod (6), a damping block (17) is fixed to the outside of the connecting rod (6), a sliding groove (16) is provided inside the mounting seat (7), and the sliding grooves (16) are all slidably connected to the damping block (17), and the sliding grooves (16) are arranged on the inner wall of the movable groove.

3. The local extrusion mechanism of a mold according to claim 2, characterized in that: The damping block (17) and the connecting rod (6) are arranged in a cross shape, and the sliding groove (16) is arranged in a cross shape with the moving groove inside the mounting seat (7). The cross-sectional size of the damping block (17) is adapted to the cross-sectional size of the sliding groove (16), and the outer side of the damping block (17) is tightly fitted with the inner wall of the sliding groove (16). The spring B (15) is always in a compressed state.

4. The local extrusion mechanism of a mold according to claim 1, characterized in that: The limit blocks (18) are provided in two groups, each group of the limit blocks (18) is provided with three limit blocks, and one end of the limit blocks (18) close to the connecting seat (8) is provided in an inclined shape.

5. The local extrusion mechanism of a mold according to claim 1, characterized in that: A slider (10) is fixed to the bottom end of the mounting seat (7), a slide groove (9) is provided at the top end of the inner surface of the connecting seat (8), and the slide groove (9) is slidably connected to the slider (10), and the slide groove (9) is located at the bottom end of the connecting groove (14).

6. The local extrusion mechanism of a mold according to claim 5, characterized in that: The size of the chute (9) is adapted to the size of the slider (10), and the cross-sections of the chute (9) and the slider (10) are both arranged to be trapezoidal.

7. The local extrusion mechanism of a mold according to claim 1, characterized in that: A thread groove (22) is provided inside the mounting frame (1), and the thread groove (22) is symmetrically arranged with respect to the central axis of the mounting frame (1).

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