Spline mold capable of rapidly replacing mold core

Abstract

The utility model relates to a spline mold capable of quickly replacing a mold core. The spline mold comprises a front mold bottom plate, a rear mold bottom plate, a front plate arranged on the front mold bottom plate, a rear plate arranged on the rear mold bottom plate and the quick-change mold core, a mold core groove with an opening in the end is machined in the rear plate, at least two concave assembling grooves are formed in the two sides of the mold core groove at intervals, inclined extrusion blocks are arranged in the concave assembling grooves, the width of the inclined extrusion blocks is larger than that of the concave assembling grooves, the inclined extrusion blocks protrude out of the concave assembling grooves, and gaps are reserved between the bottom faces of the inclined extrusion blocks and the bottom face of the mold core groove; a rotary locking block is arranged at the position, close to the opening of the mold core groove, of the rear plate; limiting parts protruding outwards are arranged on the two sides of the quick-change mold core, the limiting parts are arranged in a gap reserved between the oblique extrusion block and the mold core groove, and the quick-change mold core can be pushed / pulled relative to the rear plate; and the rotary locking block is rotationally connected with the rear plate and is used for locking and fixing the quick-change mold core on the rear plate. The quick-change mold core of the mold is replaced in an upward pulling / downward pushing mode, operation is easy, the replacement speed is high, and the quick-change mold core is suitable for large molds.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically relating to a spline mold for quick core replacement. Background Technology

[0002] When processing existing samples, it is necessary to purchase matching injection molds for different samples. That is, each set of molds needs to be purchased again, which is costly and takes up a lot of space.

[0003] To address the issue of purchasing large quantities of molds, a solution could be to replace only the core structure. For example, Chinese Patent 201320530749.8 discloses an improved mold structure for quick core replacement. This mold features a detachable connection between the core pad and the moving mold base plate. If a core malfunctions or needs replacement, simply loosen the moving mold base plate from the injection molding machine, unscrew it while the machine is open, remove the core pad, and the core can be replaced, improving efficiency and reducing production costs. Chinese Patent 202222630309.1 discloses an injection mold that facilitates core replacement. The mold shell has a cavity in the middle for mounting the mold core, and the base plate also has a locking mechanism for the mold core. This locking mechanism locks the mold core in both sides of the mold shell. However, existing molds with replaceable cores are mainly suitable for small molds. For large molds, this structure still has problems such as slow core replacement speed and inconvenient operation. Therefore, it is necessary to further improve the structure of existing molds so that core replacement can be carried out quickly. Summary of the Invention

[0004] In view of the above-mentioned technical problems and shortcomings, the purpose of this utility model is to provide a quick-change spline mold with a core. The quick-change core of this mold is changed by pulling up / pushing down, which is simple to operate, fast to change, and suitable for large molds.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-change core template includes a front mold base plate, a rear mold base plate, a front plate disposed on the front mold base plate, a rear plate disposed on the rear mold base plate, and a quick-change core. The improvement is that the rear plate is machined with a core groove with an end opening. At least two recessed assembly grooves are spaced apart on both sides of the core groove. An inclined extrusion block is provided within each recessed assembly groove. The width of the inclined extrusion block is greater than the width of the recessed assembly groove and protrudes outward from the recessed assembly groove. A gap is reserved between the bottom surface of the inclined extrusion block and the bottom surface of the core groove. A rotating locking block is provided on the rear plate near the opening of the core groove. Outwardly protruding limiting portions are provided on both sides of the quick-change core, and these limiting portions are disposed within the reserved gap between the inclined extrusion block and the core groove. The quick-change core can be pushed / pulled relative to the rear plate. The rotating locking block is rotatably connected to the rear plate and is used to lock and fix the quick-change core onto the rear plate.

[0007] As a preferred embodiment of this utility model, the front plate is provided with a lifting block, and the lifting block is provided with a lifting ring.

[0008] As a preferred embodiment of this utility model, the outer wall of the quick-change core is provided with an internal threaded hole, through which the quick-change core is connected to the push-pull mechanism or the hoisting mechanism.

[0009] As a preferred embodiment of this invention, the front plate and the rear plate are connected by a molding mechanism.

[0010] As a preferred embodiment of this utility model, the side of the inclined extrusion block that contacts the side of the concave assembly groove is an inclined surface, and the side that contacts the quick-change core and the bottom surface of the concave assembly groove is a flat surface.

[0011] As a preferred embodiment of this utility model, the front mold base plate and the rear mold base plate are thin plates, and the front mold base plate and the rear mold base plate are provided with pressure-bearing blocks near the outermost position for bearing pressure.

[0012] Advantages and beneficial effects of this utility model:

[0013] (1) The quick-change mold core provided by this utility model can be replaced by pulling up / pushing down. It is simple to operate, fast to replace, and suitable for large molds.

[0014] (2) The mold provided by this utility model has concave assembly grooves on both sides of the core groove, and inclined extrusion blocks are provided in the concave assembly grooves. This method facilitates the adjustment of the reserved gap and reduces the precision requirements during mold processing.

[0015] (3) The front mold base plate and the rear mold base plate of this utility model are thin plates. By setting pressure blocks, the pressure that the mold can withstand is guaranteed. This method can reduce the overall weight of the mold and reduce the cost.

[0016] (4) This utility model uses a rotating locking block to lock and fix the quick-change core, which is simple and quick to operate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the spline mold for quick core replacement according to this utility model.

[0019] Figure 2 This is a schematic diagram of the concealed front mold base plate and the front plate rear mold of this utility model;

[0020] Figure 3 This is a schematic diagram of the upward pull-up quick-change core of this utility model;

[0021] Figure 4 This is a schematic diagram of the rear plate of the concealed quick-change core of this utility model.

[0022] Reference numerals: 1. Front mold base plate; 2. Rear mold base plate; 3. Front plate; 4. Rear plate; 5. Quick-change core; 6. Inclined extrusion block; 7. Rotary locking block; 8. Limiting part; 9. Lifting block; 10. Mold locking mechanism; 11. Pressure bearing block; 41. Core groove. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] like Figures 1 to 4As shown, this embodiment provides a quick-change core template mold, including a front mold base plate 1, a rear mold base plate 2, a front plate 3 disposed on the front mold base plate, a rear plate 4 disposed on the rear mold base plate, and a quick-change core 5. The improvement is that the rear plate 4 is machined with a core groove 41 with an end opening. At least two recessed assembly grooves (three in this embodiment) are spaced apart on both sides of the core groove 41. An inclined extrusion block 6 is provided within each recessed assembly groove (unmarked), and the width of the inclined extrusion block 6 is greater than the width of the recessed assembly groove. The width of the assembly groove protrudes outward from the concave assembly groove, and a gap is reserved between the bottom surface of the inclined extrusion block 6 and the bottom surface of the core groove; a rotating locking block 7 is provided on the back plate 4 near the opening of the core groove; the quick-change core 5 has outwardly protruding limiting parts 8 on both sides, and the limiting parts 8 are set in the gap reserved between the inclined extrusion block 6 and the core groove, so that the quick-change core 5 can be pushed / pulled relative to the back plate 4; the rotating locking block 7 is rotatably connected to the back plate 4 and is used to lock and fix the quick-change core 5 on the back plate 4.

[0026] Furthermore, such as Figure 1 As shown in this embodiment, the front plate 3 is provided with a lifting block 9, and the lifting block 9 is provided with a lifting ring, which facilitates the movement of the entire mold through the lifting block 9 and the lifting ring.

[0027] Furthermore, such as Figure 2 and 3 As shown in this embodiment, the quick-change core 5 has an internal threaded hole (unmarked) on its outer side wall. The internal threaded hole facilitates the connection of the quick-change core 5 to the push-pull mechanism or the hoisting mechanism, and the core can be replaced by pulling up / pushing down.

[0028] Furthermore, continue as Figure 1 As shown, in this embodiment, the front plate 3 and the rear plate 4 are connected by a locking mechanism 10; specifically, they can be connected by the quick-pull locking mechanism disclosed in application number 2018219022400.

[0029] Furthermore, in this embodiment, the side of the inclined extrusion block 6 that contacts the side of the concave assembly groove is an inclined surface, and the side that contacts the quick-change core 5 and the bottom surface of the concave assembly groove is a flat surface. The inclined extrusion block 6 is preferably a plastic block, which facilitates the trimming of the bottom surface and the inclined surface of the inclined extrusion block 6 so that it can match the quick-change core 5 and the limiting part 8 after being installed on the concave assembly groove. Specifically, the inclined extrusion block 6 is fixed to the concave assembly groove by bolts or screws.

[0030] In this embodiment, the front mold base plate 1 and the rear mold base plate 2 are thin plates with a thickness of 50mm. The front mold base plate and the rear mold base plate are provided with pressure-bearing blocks 11 near the outermost pressure-bearing position. This design can reduce the overall weight of the mold and reduce costs.

[0031] The above are specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto.

Claims

1. A quick-change core-changing spline mold, comprising a front mold base plate, a rear mold base plate, a front plate disposed on the front mold base plate, a rear plate disposed on the rear mold base plate, and a quick-change core; characterized in that, The rear plate is machined with a core groove with an end opening. At least two recessed assembly grooves are spaced apart on both sides of the core groove. An inclined extrusion block is provided in the recessed assembly groove. The width of the inclined extrusion block is greater than the width of the recessed assembly groove and protrudes outward from the recessed assembly groove. A gap is reserved between the bottom surface of the inclined extrusion block and the bottom surface of the core groove. A rotating locking block is provided on the rear plate near the opening of the core groove. The quick-change core has outwardly protruding limiting parts on both sides. The limiting parts are located in the gap reserved between the inclined extrusion block and the core groove. The quick-change core can be pushed / pulled relative to the rear plate. The rotating locking block is rotatably connected to the rear plate and is used to lock and fix the quick-change core on the rear plate.

2. The spline mold for quick core replacement according to claim 1, characterized in that, The front panel is equipped with a lifting block, and the lifting block is equipped with a lifting ring.

3. A quick-change core-changing spline mold according to claim 1, characterized in that, The quick-change core has an internal threaded hole on its outer side wall, through which the quick-change core is connected to the push-pull mechanism or the hoisting mechanism.

4. A quick-change core-changing spline mold according to claim 1, characterized in that, The front plate and the rear plate are connected by a molding mechanism.

5. A quick-change core-changing spline mold according to claim 1, characterized in that, The side of the inclined extrusion block that contacts the side of the concave assembly groove is an inclined surface, and the side that contacts the quick-change core and the bottom surface of the concave assembly groove is a flat surface.

6. A quick-change core spline mold according to claim 1, characterized in that, The front mold base plate and the rear mold base plate are thin plates, and pressure-bearing blocks are provided on the front mold base plate and the rear mold base plate near the outermost position for bearing pressure.

Images