A mold core with a docking buffer structure

Abstract

The utility model belongs to mould technical field, concretely relates to a die core with butt -joint buffer structure, including die core body, the die core body surface sets up the locating groove, the locating groove bottom surface is connected conical mouth, the conical mouth sets up in the die core body bottom, the locating groove and conical mouth surface plug -in locating rod, locating rod bottom surface is welded in the mounting plate top, the mounting plate top surface movable abutment buffer pad, the buffer pad transverse end surface longitudinal set -up round groove, the round groove is sleeved in the locating rod surface, and the buffer pad longitudinal end outer wall sets up the placement groove. The utility model, through the conical mouth of setting up in the locating groove bottom, the locating rod and the locating groove butt joint on the mounting plate can guide the accurate plug -in of locating rod when, avoid the damage of causing to the intersection of die core body and locating groove, utilize the buffer pad of sleeving on the die core body to absorb the impact force between die core body and mounting plate, avoid the damage of causing to die core body by the rigid contact of both.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a mold core with a docking buffer structure. Background Technology

[0002] The mold core is the core functional component of a mold, often referred to as the "cavity" or "core". It is a key component that directly determines the final shape, dimensional accuracy, and surface quality of molded products such as plastic products and hardware parts. A mold core is a specially machined geometric structure that forms a closed space with other components of the mold cavity after the mold is closed. Through processes such as injection molding and stamping, the raw material cools, solidifies, or is shaped within this space, ultimately replicating a finished product that perfectly matches the mold core's structure. Mold cores are typically made of high-strength, highly wear-resistant metal materials and undergo precision machining to ensure the accuracy of the molded product and the lifespan of the mold. They are commonly used in the production of electronic product casings, automotive parts, and everyday plastic products. When existing molds are closed, the moving mold and the mold core on the fixed mold side need to be quickly and accurately connected. When they are connected, the two are in rigid contact. The instantaneous impact force generated by the high-speed mold closing will be concentrated on the mold core connection surface. On the one hand, it may cause the mold core edge to chip and the surface to scratch, directly damaging the accuracy of the forming surface. On the other hand, the impact force will be transmitted to the overall structure of the mold, accelerating the wear of guide pillars, guide sleeves and other guiding components, and shortening the overall service life of the mold. Utility Model Content

[0003] The purpose of this invention is to provide a mold core with a docking buffer structure, which aims to solve the problem in the prior art where, during the mold closing process, the mold cores on the moving mold and fixed mold sides need to be quickly and accurately docked. During docking, the two are in rigid contact, and the instantaneous impact force generated by high-speed mold closing is concentrated on the docking surface of the mold core. On the one hand, this may cause chipping and scratches on the edge of the mold core, directly damaging the precision of the molding surface; on the other hand, the impact force will be transmitted to the overall structure of the mold, accelerating the wear of guide pillars, guide sleeves and other guiding components, and shortening the overall service life of the mold.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mold core with a docking buffer structure, comprising a mold core body, a positioning groove on the surface of the mold core body, a conical opening connected to the bottom surface of the positioning groove, the conical opening being located at the bottom of the mold core body, a positioning rod inserted into the surface of the positioning groove and the conical opening, the bottom surface of the positioning rod being welded to the top of a mounting plate, the top surface of the mounting plate being movably abutting against a buffer pad, a longitudinally formed circular groove on the transverse end surface of the buffer pad, the circular groove being fitted onto the surface of the positioning rod, a placement groove on the outer wall of the longitudinal end of the buffer pad, a baffle plate being fitted onto the surface of the placement groove, a limiting groove on the surface of the baffle plate, a screw inserted into the surface of the limiting groove, the screw being threadedly connected to a threaded groove on the surface of the mold core body, a washer fitted onto the surface of the positioning groove, the top surface of the washer abutting against the bottom of a threaded head, the bottom of the threaded head being threadedly connected to the top of the positioning rod, and a washer fitted onto the surface of the positioning rod.

[0005] As a preferred embodiment of the mold core with a docking buffer structure of this utility model, the positioning groove is a circular through groove, the shape and size of its lower end are adapted to the positioning rod, and the shape and size of its upper end are adapted to the washer and the threaded head.

[0006] As a preferred embodiment of the present invention, the two sets of positioning rods are symmetrically distributed on the top of the mounting plate, and the upper surface of the positioning rods is provided with a threaded structure, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head.

[0007] As a preferred embodiment of the present invention, a mold core with a docking buffer structure is provided, wherein a rectangular groove is formed on the top surface of the buffer pad, and its shape and size are adapted to the outer wall of the mold core body.

[0008] As a preferred embodiment of the present invention, the mold core with a docking buffer structure comprises a mold core body, a baffle, a screw, and a threaded groove forming a threaded connection structure.

[0009] As a preferred embodiment of the present invention, a set of limiting grooves are symmetrically opened on the surface of the baffle, and the shape and size of the limiting grooves are adapted to the intersection of the screw rod body and the head.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The tapered opening at the bottom of the positioning groove facilitates precise insertion of the positioning rod when it aligns with the positioning groove on the mounting plate, preventing damage to the intersection of the mold core and the positioning groove. At the same time, the buffer pad sleeved on the mold core absorbs and buffers the impact force between the mold core and the mounting plate, preventing damage to the mold core caused by rigid contact between the two. In addition, the screws that are threaded onto the baffle can be unscrewed to facilitate the replacement of the buffer pads fitted onto the mold core body, ensuring the buffering effect when the mold core body and the mounting plate are connected, and preventing the buffer pads from affecting the buffering and protection effect when they age. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a side view sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model; Figure 5 This is a schematic diagram of the exploded front view of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram of section A.

[0012] In the diagram: 1. Mold core body; 2. Positioning groove; 3. Conical opening; 4. Positioning rod; 5. Mounting plate; 6. Buffer pad; 7. Circular groove; 8. Placement groove; 9. Baffle; 10. Limiting groove; 11. Screw; 12. Threaded groove; 13. Washer; 14. Threaded head. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-6The present invention provides the following technical solution: a mold core with a docking buffer structure, comprising a mold core body 1, a positioning groove 2 formed on the surface of the mold core body 1, a conical opening 3 connected to the bottom surface of the positioning groove 2, the conical opening 3 being formed at the bottom of the mold core body 1, a positioning rod 4 inserted into the surface of the positioning groove 2 and the conical opening 3, the bottom surface of the positioning rod 4 being welded to the top of the mounting plate 5, the top surface of the mounting plate 5 being movably abutting against a buffer pad 6, a circular groove 7 formed longitudinally on the transverse end surface of the buffer pad 6, the circular groove 7 being sleeved on the surface of the positioning rod 4, a placement groove 8 formed on the outer wall of the longitudinal end of the buffer pad 6, a baffle 9 being fitted and connected to the surface of the placement groove 8, a limiting groove 10 formed on the surface of the baffle 9, a screw 11 inserted into the surface of the limiting groove 10, the screw 11 being threadedly connected to the threaded groove 12 formed on the surface of the mold core body 1, a washer 13 being sleeved on the surface of the positioning groove 2, the top surface of the washer 13 abutting against the bottom of the threaded head 14, the bottom of the threaded head 14 being threadedly connected to the top of the positioning rod 4, and the washer 13 being sleeved on the surface of the positioning rod 4.

[0015] Preferably, the positioning groove 2 is a circular through groove, the shape and size of its lower end are adapted to the positioning rod 4, and the shape and size of its upper end are adapted to the washer 13 and the threaded head 14.

[0016] In practical use, the washer 13 is fitted onto the top of the positioning rod 4, and the threaded groove of the threaded head 14 is threaded onto the top of the positioning rod 4. The threaded head 14 is then tightened on the top of the positioning rod 4, thereby clamping the intersection of the washer 13 and the positioning groove 2.

[0017] Preferably, two sets of positioning rods 4 are symmetrically distributed on the top of the mounting plate 5, and the upper surface of the positioning rods 4 is provided with a threaded structure, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head 14.

[0018] In practical use, the conical opening 3 is a "flared opening structure with a wider bottom and a narrower top" (taper 5°-15°, depth 2-5mm). After the positioning rod 4 is connected through the conical opening 3, the positioning rod 4 can be inserted into the positioning groove 2, thereby connecting the mold core body 1 and the mounting plate 5 together.

[0019] Preferably, a rectangular groove is formed on the top surface of the buffer pad 6, the shape and size of which are adapted to the outer wall of the mold core body 1.

[0020] In practical use, a polyurethane buffer pad 6 is fitted onto the surface of the mold core body 1. When the mold core body 1 and the mounting plate 5 are docked and fixed, the buffer pad 6 is used to buffer and absorb the impact force generated when the mold core body 1 and the mounting plate 5 are docked, so as to avoid damage to the mold core body 1 caused by the rigid contact between the two.

[0021] Preferably, the mold core body 1, the baffle 9, the screw 11 and the threaded groove 12 form a threaded connection structure.

[0022] In practical use, the limiting grooves 10 symmetrically opened on the surface of the baffle 9 are used to position the plug-in screws 11, so that the screws 11 can be inserted into the threaded grooves 12. Then, the screws 11 threadedly connected to the intersection of the baffle 9, the buffer pad 6 and the mold body 1 are tightened, thereby using the screws 11 to fix the position of the buffer pad 6 on the surface of the mold body 1.

[0023] Preferably, a set of limiting grooves 10 are symmetrically formed on the surface of the baffle 9, and the shape and size of the limiting grooves 10 are adapted to the intersection of the screw 11 rod and the head.

[0024] In practical use, the limiting grooves 10 symmetrically opened on the surface of the baffle 9 are used to position the plug-in screw 11, so that the screw 11 can be accurately connected to the threaded groove 12. At the same time, tightening the screw 11 allows the pressure to be distributed through the baffle 9, avoiding damage to the buffer pad 6.

[0025] Working principle: When processing various plastic products and hardware parts using molds, a mold core body 1 of appropriate shape is selected according to the parts to be processed. Then, the mounting plate 5 welded to the mold and the positioning rod 4 welded on it are used to fix the position of the mold core body 1. Before fixing, a buffer pad 6 of flexible polyurethane material with Shore hardness of 60A-70A is used to fit on the surface of the mold core body 1. Then, the placement groove 8 opened on the surface of the buffer pad 6 is used to fit the placement baffle 9. At this time, the limiting groove 10 symmetrically opened on the surface of the baffle 9 is used to position the insertion screw 11, so that the screw 11 can be inserted into the threaded groove 12. Then, the screw 11 threadedly connected to the intersection of the baffle 9, the buffer pad 6 and the mold core body 1 is tightened, so that the position of the buffer pad 6 on the surface of the mold core body 1 is fixed by the screw 11. At this time, the conical opening 3 at the bottom of the mold core body 1 facilitates precise docking with the positioning rod 4, avoiding damage to the bottom of the mold core body 1 caused by the positioning rod 4. After the positioning rod 4 docks through the conical opening 3, it can be inserted into the positioning groove 2, thereby connecting the mold core body 1 and the mounting plate 5 together. The positioning rod 4 passes through the circular groove 7 on the surface of the buffer pad 6 and is inserted into the surface of the positioning rod 4. Thus, when the mold core body 1 and the mounting plate 5 are docked and fixed, the impact force generated when the mold core body 1 and the mounting plate 5 dock is buffered and absorbed, avoiding damage to the mold core body 1 caused by the rigid contact between the two. Then, washers 13 are fitted onto the top of positioning rod 4, and threaded into the top of positioning rod 4 using the threaded groove of threaded head 14. The threaded head 14 is then tightened on the top of positioning rod 4, thus clamping the intersection of washer 13 and positioning groove 2. Washer 13 is a flat metal washer, fitted between the top of positioning rod 4 and threaded head 14 to distribute the pressure of threaded head 14 on washer 13, preventing cracking of the positioning groove edge of mold core body 1 due to excessive local pressure. The above operation is repeated to fix four sets of washers 13 and threaded heads 14 respectively. At the top of the positioning rod 4, while tightening the threads, use a torque wrench during assembly to tighten the four sets of threaded heads 14 in a diagonal sequence. The preset torque value is 8-10 N·m to ensure that the four sets of preloads are consistent, so as to avoid deformation of the mold core body 1 under stress, thereby ensuring the connection stability of the mold core body 1 and the mounting plate 5. This allows for stable and rapid fixing of the mold core body 1 on the mold. The thread structure at the top of the positioning rod 4 is a fine thread, which can enhance the anti-loosening property. The threaded groove on the inner wall of the threaded head 14 matches the thread of the positioning rod 4.

[0026] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 core with a docking buffer structure, comprising a mold core body (1), characterized in that: The mold core body (1) has a positioning groove (2) on its surface. The bottom surface of the positioning groove (2) is connected to a conical opening (3). The conical opening (3) is located at the bottom of the mold core body (1). A positioning rod (4) is inserted into the surface of the positioning groove (2) and the conical opening (3). The bottom surface of the positioning rod (4) is welded to the top of the mounting plate (5). The top surface of the mounting plate (5) is movably abutting against a buffer pad (6). A circular groove (7) is longitudinally opened on the transverse end surface of the buffer pad (6). The circular groove (7) is fitted onto the surface of the positioning rod (4). The outer wall of the longitudinal end of the buffer pad (6) is opened... A placement groove (8) is provided, and a baffle (9) is fitted and connected to the surface of the placement groove (8). A limiting groove (10) is opened on the surface of the baffle (9). A screw (11) is inserted into the surface of the limiting groove (10). The screw (11) is threadedly connected to the threaded groove (12) opened on the surface of the mold core body (1). A washer (13) is sleeved on the surface of the positioning groove (2). The top surface of the washer (13) abuts against the bottom of the threaded head (14). The bottom of the threaded head (14) is threadedly connected to the top of the positioning rod (4). The washer (13) is sleeved on the surface of the positioning rod (4).

2. The mold core with a docking buffer structure according to claim 1, characterized in that: The positioning groove (2) is a circular through groove. Its lower end shape and size are adapted to the positioning rod (4), and its upper end shape and size are adapted to the washer (13) and the threaded head (14).

3. A mold core with a docking buffer structure according to claim 2, characterized in that: The two sets of positioning rods (4) are symmetrically distributed on the top of the mounting plate (5), and the upper surface of the positioning rod (4) is provided with a threaded structure, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head (14).

4. A mold core with a docking buffer structure according to claim 1, characterized in that: The top surface of the buffer pad (6) has a rectangular groove, the shape and size of which are adapted to the outer wall of the mold core body (1).

5. A mold core with a docking buffer structure according to claim 1, characterized in that: The mold core body (1), baffle (9), screw (11) and threaded groove (12) form a threaded connection structure.

6. A mold core with a docking buffer structure according to claim 5, characterized in that: A set of limiting grooves (10) are symmetrically opened on the surface of the baffle (9), and the shape and size of the limiting grooves (10) are adapted to the intersection of the screw (11) rod and the head.

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