Rear mold core structure convenient for placing sleeve mold product

Abstract

The utility model provides a rear mold core structure convenient for placing a sleeve mold product, which is applied to the field of injection molds and comprises a front mold insert, a slide mechanism and a rear mold plate, the front mold insert is arranged on a front mold, the slide mechanism and the rear mold plate are arranged on the rear mold, the rear mold is arranged at the top of the front mold, and a front mold insert pin is arranged at the output end of the front mold insert; the top of the rear mold plate is provided with a rear mold core matched with a die sleeving product, three sets of sliding grooves are evenly formed in the circumferential side of the rear mold core at equal angles, the slide mechanism comprises three sets of slide blocks which are evenly arranged at equal angles, sliding rods are fixed to the sides, away from each other, of the slide blocks, a fixing block is fixed to one side of the rear mold, and the sliding rods extend to penetrate through the fixing block. And a reset spring is further clamped between the end of the sliding rod and the fixed block, and a limiting block is further fixed to the side, away from the slide block, of the fixed block.

Description

Technical Field

[0001] This application relates to the field of injection molds, and particularly to a structure of a rear mold core that facilitates placing nested injection products. Background Art

[0002] Nested injection molding is to inject two or more different plastic materials into the same mold in sequence to form an injection molded part with a multi-layer structure. For example, first inject the inner layer material, and then inject another material on its outer layer, and build the product structure by superimposing multiple injections.

[0003] The mold core part is the core part of a plastic mold. It is the most important component in the mold. The forming part of the plastic product is inside the mold core. The traditional mold core structure is not convenient for quickly placing the nested injection products, resulting in low efficiency of nested injection molding. Therefore, a structure of a rear mold core that facilitates placing nested injection products is proposed. Summary of the Utility Model

[0004] The purpose of this application is to solve the technical problem that the existing mold core structure is not convenient for quickly placing the nested injection products and has low injection efficiency. Compared with the existing technology, a structure of a rear mold core that facilitates placing nested injection products is provided, including a front mold insert arranged on the front mold, a slider mechanism and a rear template arranged on the rear mold. The rear mold is arranged on the top of the front mold, and the output end of the front mold insert is provided with a front mold pin.

[0005] The top of the rear template is provided with a rear mold core that matches the nested injection product. Three groups of sliding grooves are evenly distributed at equal angles on the circumferential side of the rear mold core. The slider mechanism includes three groups of slider blocks evenly distributed at equal angles. A slide bar is fixed to the side of each slider block away from the other. A fixed block is fixed to one side of the rear mold. The slide bar extends through the fixed block, and a return spring is clamped between the end of the slide bar and the fixed block. A limit block is also fixed to the side of the fixed block away from the slider block.

[0006] Opposite sides of the slider blocks are provided with mating grooves. The top of the mating groove is provided with an inclined groove corresponding to the bottom end of the front mold insert. Two groups of symmetrically arranged sliders are also provided at the bottom of the slider block. The sliders are slidably connected in the sliding grooves. An inclined sliding sleeve is also provided at the top of the slider block. An inclined guide post matching the inclined sliding sleeve is fixed to the bottom of the front mold.

[0007] Further, the return spring has an elastic force that drives the slider block away from the nested injection product.

[0008] Further, a convex edge is provided on one side of the top of the nested injection product, and a groove corresponding to the convex edge is provided in the mating groove.

[0009] Further, positioning grooves are provided at the ends of the mating grooves.

[0010] Further, the beer-sleeving product has a cylindrical structure, and the axis of the inclined sliding sleeve gradually increases from top to bottom with respect to the axis of the beer-sleeving product. When the inclined guide pillar moves down with the front mold to the maximum stroke, the three sets of slide blocks are engaged with each other.

[0011] Compared with the prior art, the advantages of this application are as follows:

[0012] In this application, through the mutual cooperation between the slide block with an engaging groove and the rear template with a rear mold core, during actual use, in the state where the front mold and the rear mold are separated, the elastic force of the return spring is used to push the three sets of slide blocks away from each other. At this time, the beer-sleeving product to be sleeved is placed in the rear mold core of the rear template. During the process of the front mold and the rear mold closing, the inclined guide pillar moves down to push the slide block with an inclined sliding sleeve closer to each other, and the groove is engaged with the convex edge of the beer-sleeving product to complete the fixation of the beer-sleeving product. At the same time, as the front mold moves down, the front mold insert displaces to the top of the beer-sleeving product, and the top of the beer-sleeving product is injection-molded at the sleeving position using the front mold insert needle. Since the slide block can be automatically reset by the return spring when the front mold and the rear mold are separated, it can effectively improve the placement efficiency and convenience of the beer-sleeving product, and can effectively improve the injection efficiency. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of this application;

[0014] Figure 2 is a schematic structural diagram when the front mold and the rear mold of this application are separated;

[0015] Figure 3 is a schematic structural diagram of the rear mold of this application;

[0016] Figure 4 is a schematic structural diagram of the slide mechanism and the rear template of this application;

[0017] Figure 5 is an exploded structural diagram of the slide mechanism and the rear template of this application;

[0018] Figure 6 is a schematic structural diagram of the slide block of this application;

[0019] Figure 7 is a schematic structural diagram of the beer-sleeving product of this application.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Front mold; 11. Angled guide pillar; 2. Rear mold; 3. Main runner; 4. Slide mechanism; 41. Slide block; 411. Angled sliding sleeve; 412. Slide; 413. Angled groove; 414. Alignment groove; 415. Recessed groove; 416. Positioning groove; 42. Fixed block; 43. Limit block; 44. Slide bar; 45. Return spring; 5. Front mold insert; 51. Front mold insert pin; 6. Insert-molded product; 61. Insert-molded part; 62. Flange; 7. Rear template; 71. Slide groove; 72. Rear mold core. Detailed implementation mode

[0022] In the embodiments, in combination with the accompanying drawings of the specification, the technical solutions of the present application will be clearly and completely described. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0023] Embodiment 1:

[0024] The present utility model provides a rear mold core structure for facilitating the placement of insert-molded products. Please refer to Figure 1 - Figure 7 , including a front mold insert 5 provided on the front mold 1, a slide mechanism 4 and a rear template 7 provided on the rear mold 2. A main runner 3 is provided at the top of the front mold 1, a rear mold 2 is provided at the top of the front mold 1, a front mold insert pin 51 is provided at the output end of the front mold insert 5, and the front mold insert pin 51 is used for insert-molding the insert-molded part 61 at the top of the insert-molded product 6;

[0025] A rear mold core 72 matching the insert-molded product 6 is provided at the top of the rear template 7. Three groups of slide grooves 71 are equally divided at equal angles on the circumferential side of the rear mold core 72. The slide mechanism 4 includes three groups of slide blocks 41 equally divided at equal angles. Slide bars 44 are fixed on the opposite sides of the slide blocks 41 away from each other. A fixed block 42 is fixed on one side of the rear mold 2. The slide bars 44 extend through the fixed block 42, and a return spring 45 is clamped between the end of the slide bar 44 and the fixed block 42. The return spring 45 has an elastic force to drive the slide blocks 41 away from the insert-molded product 6. A limit block 43 is also fixed on the side of the fixed block 42 away from the slide blocks 41;

[0026] Alignment grooves 414 are provided on the opposite sides of the slide blocks 41. Angled grooves 413 corresponding to the bottom end of the front mold insert 5 are provided at the top of the alignment grooves 414. Two groups of symmetrically arranged slides 412 are also provided at the bottom of the slide blocks 41. The slides 412 are slidably connected in the slide grooves 71. Angled sliding sleeves 411 are provided at the top of the slide blocks 41. An angled guide pillar 11 matching the angled sliding sleeve 411 is fixed at the bottom of the front mold 1. The insert-molded product 6 is a cylindrical structure. The axis of the angled sliding sleeve 411 and the axis of the insert-molded product 6 gradually increase from top to bottom. When the angled guide pillar 11 follows the front mold 1 and moves down to the maximum stroke, the three groups of slide blocks 41 are aligned.

[0027] One side of the top of the nested beer product 6 is provided with a convex edge 62. A groove 415 corresponding to the convex edge 62 is arranged in the mating groove 414, and positioning grooves 416 are arranged at the ends of the mating groove 414.

[0028] In this application, through the mutual cooperation between the slider block 41 with the mating groove 414 and the slider 412 and the rear template 7 with the rear mold core 72, during actual use, in the state where the front mold 1 and the rear mold 2 are separated, the elastic force of the return spring 45 is used to push the three groups of slider blocks 41 away from each other. At this time, the nested beer product 6 to be nested is placed in the rear mold core 72 of the rear template 7. During the process of the front mold 1 and the rear mold 2 being closed, the inclined guide post 11 is used to move downward to push the slider block 41 with the inclined sliding sleeve 411 closer. The groove 415 is mated with the convex edge 62 of the nested beer product 6 to complete the fixation of the nested beer product 6. At the same time, as the front mold 1 moves downward, the front mold insert 5 is displaced to the top of the nested beer product 6, and the top of the nested beer product 6 is injection-molded at the nested beer part 61 by using the front mold insert pin 51. Since the slider block 41 can be automatically reset by using the return spring 45 when the front mold 1 and the rear mold 2 are separated, the placement efficiency and convenience of the nested beer product 6 can be effectively improved, and the injection molding efficiency can be effectively improved.

[0029] The above is only the best implementation mode adopted by this application in combination with the current actual needs, but the protection scope of this application is not limited thereto.

Claims

1. A rear mold core structure for placing a beer product, comprising a front mold insert (5) arranged on a front mold (1) and a slide mechanism (4) and a rear mold plate (7) arranged on a rear mold (2), characterized in that: A rear mold (2) is provided on the top of the front mold (1), and a front mold insert pin (51) is provided at the output end of the front mold insert (5); The top of the rear mold plate (7) is provided with a rear mold core (72) matching the beer product (6), and the circumferential side of the rear mold core (72) is evenly divided with three groups of slide grooves (71), and the sliding mechanism (4) includes three groups of sliding blocks (41) evenly divided with equal angles. The sliding blocks (41) are fixed with sliding rods (44) on the side away from each other, and a fixed block (42) is fixed on one side of the rear mold (2). The sliding rod (44) extends through the fixed block (42), and a return spring (45) is clamped between the end of the sliding rod (44) and the fixed block (42). A limiting block (43) is also fixed on the side of the fixed block (42) away from the sliding block (41); The opposite side of the slide block (41) is provided with a matching groove (414), the top of the matching groove (414) is provided with an oblique groove (413) corresponding to the bottom end of the front mold insert (5), the bottom of the slide block (41) is also provided with two groups of symmetrically arranged sliding blocks (412), the sliding blocks (412) are slidably connected in the sliding groove (71), the top of the slide block (41) is also provided with an inclined sliding sleeve (411), and the bottom of the front mold (1) is fixed with an inclined guide column (11) matching the inclined sliding sleeve (411).

2. A rear mold core structure for placing beer products according to claim 1, characterized in that: The return spring (45) has an elastic force that drives the positioning block (41) away from the beer product (6).

3. The rear mold core structure for placing beer products according to claim 1, characterized in that: A convex edge (62) is provided on one side of the top of the packaged beer product (6), and a concave groove (415) corresponding to the convex edge (62) is provided in the matching groove (414).

4. The rear mold core structure for placing beer products according to claim 1, characterized in that: The ends of the matching grooves (414) are each provided with positioning grooves (416).

5. The rear mold core structure for placing beer products according to claim 1, characterized in that: The beer-encased product (6) is a cylindrical structure, and the axis of the inclined sliding sleeve (411) and the axis of the beer-encased product (6) gradually increase from top to bottom. When the inclined guide column (11) follows the front mold (1) to move downward to the maximum stroke, the three groups of sliding blocks (41) are aligned.

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