Die structure of deep-cavity product

Abstract

The utility model discloses a die structure of a deep-cavity product, which comprises a fixed die, a movable die and a sliding block mechanism arranged between the fixed die and the movable die. The sliding block mechanism comprises a sliding block, a sliding seat, a sliding block driver and a sliding seat driver; an upper sliding block cavity is formed in the bottom face of the fixed mold, a lower sliding block cavity is formed in the bottom face of the movable mold, and a protruding movable mold core is arranged in the lower sliding block cavity. The two sliding blocks are symmetrically arranged, the two sliding blocks are movably and oppositely buckled on the outer side of the movable mold core, an injection molding cavity is formed between the two sliding blocks and the movable mold core, and meanwhile, after the two sliding blocks are oppositely buckled, the upper portions and the lower portions of the two sliding blocks are embedded into the upper sliding block cavity and the lower sliding block cavity correspondingly; the two sliding blocks are assembled on the sliding seat in a sliding manner, are respectively controlled by the sliding block drive, and are relatively close to or separated from each other in the horizontal direction; and the sliding seat is driven by the sliding seat to drive the two sliding blocks to movably lift in the lower sliding block cavity of the movable mold. When a deep-cavity product is produced through injection molding of the mold structure, burrs generated by injection molding of the product can be reduced, and the size of the sliding block is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold structure for deep cavity products. Background Art

[0002] Plastic products, with their lightness, durability, varied shapes, and easy availability in large quantities, have gradually begun to replace metal, glass, ceramics and other media in many fields, becoming a very common item in people's daily lives. At the same time, people's functional requirements for plastic products are getting higher and higher, and the structure of plastic products is becoming more and more complex. In the production of plastic products, especially for some deep-cavity products, most of the existing molds need to be equipped with larger inclined guide columns and sliders to core the products, resulting in larger mold size, higher cost, and easy to produce burrs when the product is demolded. Utility Model Content

[0003] The utility model aims to provide a mold structure for deep cavity products, which has the advantages of reducing the volume of the mold and reducing the burrs of the product.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] A mold structure for a deep cavity product, comprising a fixed mold, a movable mold and a slider mechanism, wherein the slider mechanism is arranged between the fixed mold and the movable mold;

[0006] The slider mechanism includes a slider, a slide seat, a slider drive and a slide seat drive;

[0007] The bottom surface of the fixed mold forms an upper slider chamber, and the bottom surface of the movable mold forms a lower slider chamber, wherein the lower slider chamber has a protruding movable mold core;

[0008] The sliders are symmetrically arranged in two pieces, and the two sliders are movably buckled on the outer side of the movable mold core, and an injection cavity is formed between the sliders and the movable mold core, and the upper and lower parts of the two sliders after buckling are respectively embedded in the upper slider cavity and the lower slider cavity;

[0009] The two sliders are slidably assembled on the slide seat and are respectively controlled by the slider drive to move relatively close to or apart in the horizontal direction; the slide seat is located between the fixed mold and the movable mold, and the slide seat is controlled by the slider drive to drive the two sliders to move up and down in the lower slider chamber of the movable mold.

[0010] Furthermore, after the two sliders are buckled, the upper and lower side walls are both inclined surfaces with the outer ends tilted inwards.

[0011] Furthermore, the two sliders are symmetrically arranged left and right, and there are two slide seats, which are symmetrically arranged front and back on the outside of the two sliders; a slide rail is arranged on the slide seat, and a slide groove slidably connected to the slide rail is arranged in the middle of the front and rear sides of the slider.

[0012] Furthermore, mounting seats are respectively provided at the left and right side ends of the two slide seats; the slider is driven by two driving cylinders, the two driving cylinders are respectively installed on the mounting seats, and are connected and fixed to the slider on the same side.

[0013] Furthermore, an upper hole is formed in the middle of the upper part after the two sliders are buckled together, and a lower hole is formed in the lower part for the movable mold core to pass through.

[0014] Furthermore, the slide drive includes a push rod connected to the bottom surface of the slide, and the push rod can be reciprocatingly slidably inserted into a push rod through hole provided on the movable mold. The push rod is driven by external force to push against the slide and the module rises and falls.

[0015] Furthermore, the slide is also provided with a limit rod, the upper end of which is connected to the bottom surface of the slide, and the lower end is a limit part, which can be reciprocatingly slidably penetrated into a limit long hole provided on the movable mold, and a limit step is provided in the limit long hole to limit the limit part.

[0016] Furthermore, guide pillars are respectively provided around the movable mold, and guide holes for the guide pillars to pass through are provided around the fixed mold and at both ends of the two slide seats.

[0017] Furthermore, slide seat positioning blocks are convexly provided on the upper and lower surfaces of the slide seat, and slide seat positioning grooves for cooperating with the slide seat positioning blocks are concavely provided on the fixed mold and the movable mold.

[0018] Furthermore, the upper end surface and the lower end surface of the slider are respectively provided with a slider positioning groove, and the upper slider chamber and the lower slider chamber are respectively provided with a slider positioning block for being inserted into the slider positioning groove.

[0019] After adopting the above technical scheme, when using the mold structure for injection molding to produce deep-cavity products, since the upper and lower parts of the two sliders of the slider mechanism can be embedded in the movable mold and the fixed mold after buckling, the upper and lower parts of the two sliders can be tightly fitted in the upper and lower sides of the injection cavity, which can reduce the burrs produced by the injection molded product, reduce the volume of the slider, and thus reduce the overall volume of the mold; and the slider cooperates with the slide seat to achieve lifting and lowering and relative proximity or separation between the two sliders, which can meet the needs of product demolding. In the mold opening process after injection molding, the fixed mold is first moved away from the slider mechanism to separate the upper slider chamber from the slider mechanism, and then the slide seat is used to drive the slide seat to rise, driving the slider and the injection-molded deep-cavity product to rise, so that the slider mechanism leaves the lower slider chamber, and then the slider can be relatively separated to demold the deep-cavity product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of an embodiment of the utility model;

[0021] Figure 2 An exploded view of an embodiment of the utility model;

[0022] Figure 3 A three-dimensional diagram of a slider mechanism according to an embodiment of the utility model;

[0023] Figure 4 An exploded view of a slider mechanism according to an embodiment of the present utility model;

[0024] Figure 5 It is a schematic diagram of the mold closing state of an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the mold opening state of an embodiment of the utility model;

[0026] Figure 7 A sectional view of a part of the structure of an embodiment of the utility model (I);

[0027] Figure 8 This is a cross-sectional view of a partial structure of an embodiment of the present utility model (II).

[0028] Explanation of reference numerals: mold structure 10, fixed mold 1, upper slider chamber 11, movable mold 2, lower slider chamber 21, movable mold core 22, perforation 23, push rod through hole 24, limiting long hole 25, limiting step surface 251, guide column 26, guide column hole 261, bottom plate 3, bottom plate through hole 31, slider mechanism 4, upper part 401, lower part 402, side wall 403, upper hole 404, lower hole 405, slider 41, slider positioning groove 411, slide groove 412, slide seat 42, slide rail 421, limiting rod 422, limiting part 4221, limiting rod screw 423, slide seat positioning block 424, slider drive 43, driving cylinder 431, slide seat drive 44, push rod 441, push rod screw 442, mounting seat 45, injection molding cavity 5, deep cavity product 6, slider positioning block 7, slide seat positioning groove 8. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] like Figures 1 to 8 As shown, a mold structure 10 of a deep cavity product of the present invention comprises a fixed mold 1, a movable mold 2, a bottom plate 3 and a slider mechanism 4. The slider mechanism 4 is arranged between the fixed mold 1 and the movable mold 2, and the bottom plate 3 is arranged below the movable mold 2.

[0031] like Figure 2 and Figure 5As shown, the slider mechanism 4 includes a slider 41, a slide seat 42, a slider drive 43 and a slide seat drive 44; the bottom surface of the fixed mold 1 forms an upper slider chamber 11, and the bottom surface of the movable mold 2 forms a lower slider chamber 21, and the lower slider chamber 21 has a protruding movable mold core 22; the sliders 41 are symmetrically arranged, and the two sliders 41 are movably buckled on the outside of the movable mold core 22, and an injection cavity 5 is formed between the movable mold core 22, and at the same time, the upper part 401 and the lower part 402 of the two sliders 41 after buckling are respectively embedded in the upper slider chamber 11 and the lower slider chamber 21.

[0032] In this embodiment, an upper hole 404 for pouring is formed in the middle of the upper portion 401 after the two sliders 41 are buckled together, and a lower hole 405 for the movable mold core 22 to pass through is formed in the lower portion 402 .

[0033] The two sliders 41 are slidably assembled on the slide seat 42, and are respectively controlled by the slider drive 43 to move relatively close to or apart in the horizontal direction; the slide seat 42 is located between the fixed mold 1 and the movable mold 2, and the slide seat 42 is controlled by the slide drive 44 to drive the two sliders 41 to move up and down in the lower slider chamber 21 of the movable mold 2.

[0034] Thus, when the mold structure 10 is used to produce deep cavity products by injection molding, the upper and lower parts 401 and 402 of the two sliders 41 of the slider mechanism 4 can be embedded in the movable mold 2 and the fixed mold 1 after being buckled, so that the upper and lower parts 401 and 402 of the two sliders 41 can be tightly matched with the upper and lower sides of the injection cavity 5, which can reduce the burrs generated by the injection molded deep cavity product 6 and reduce the volume of the slider 41; and the slider 41 can be lifted and lowered in cooperation with the slide seat 42, and the two sliders 41 can be relatively close to or separated, which can meet the requirements of product demoulding, see Figure 6 During the mold opening process after injection molding, the fixed mold 1 is first moved away from the slider mechanism 4 to separate the upper slider chamber 11 from the slider mechanism 4, and then the slider drive 44 is used to drive the slider 42 to rise, driving the slider 41 and the injection-molded deep-cavity product 6 to rise, so that the slider mechanism 4 leaves the lower slider chamber 21, and then the slider 41 can be relatively separated to demould the deep-cavity product 6.

[0035] The movable mold core 22 of this embodiment is a long convex column structure, which can cooperate with two sliders 41 to form an injection molding cavity 5 of a deep cavity product 6. The deep cavity product 6 of this embodiment takes a measuring cup as an example.

[0036] The movable mold core 22 of this embodiment passes upward from the through hole 23 in the middle of the bottom surface of the movable mold 2 into the lower slider chamber 21 , and the movable mold core 22 can be locked and fixed with the bottom plate 3 .

[0037] In this embodiment, the side walls 403 of the upper part 401 and the lower part 402 after the two sliders 41 are buckled are inclined surfaces with the outer ends tilted inward. In this embodiment, the upper part 401 and the lower part 402 of the two sliders 41 are buckled into four prisms in opposite directions, each of which has four inclined surfaces.

[0038] At the same time, the upper and lower end surfaces of the slider 41 may be concavely provided with slider positioning grooves 411, and the upper slider chamber 11 and the lower slider chamber 21 may be convexly provided with slider positioning blocks 7 for plugging into the slider positioning grooves 411. After the mold is closed, the slider 41 of the slider mechanism 4 can be more accurately positioned with the fixed mold 1 and the movable mold 2.

[0039] See also Figure 3 and Figure 4 In this embodiment, the two sliders 41 are symmetrically arranged on the left and right sides, and the sliders 42 are also two and are symmetrically arranged on the outside of the two sliders 41 in the front and rear directions; each slider 42 is provided with a slide rail 421 extending in the left and right directions, and the middle of the front and rear sides of the slider 41 is provided with a slide groove 412 that is slidably connected to the slide rail 421. The left and right ends of the two sliders 42 are respectively provided with mounting seats 45; the slider drive 43 is two driving cylinders 431, which are respectively installed on the mounting seats 45 and are connected and fixed to the slider 41 on the same side. Therefore, the slider 41 located between the two sliders 42 can be driven by the driving cylinder 431 to stably slide in the left and right directions along the slide rail 421.

[0040] like Figure 2 and Figure 7 As shown, the slide drive 44 includes a push rod 441 connected to the bottom surface of the slide 42, and the push rod 441 can be locked and fixed to the slide 42 by a push rod screw 442; in this embodiment, two push rods 441 are arranged at intervals on one slide 42.

[0041] Each push rod 441 can be reciprocatingly slidably inserted into the push rod through hole 24 set on the movable mold 2. The push rod 441 is driven by external force to push against the slide seat 42 and the slider 41 to rise and fall. Since the push rod through hole 24 passes through the upper and lower surfaces of the movable mold 2, and the bottom plate 3 below the movable mold 2 is also provided with a bottom plate through hole 31 aligned with the push rod through hole 24, the external force can be provided by an external mechanism.

[0042] like Figure 2 and Figure 8 As shown, the slide 42 is further provided with a limit rod 422, the upper end of which is connected to the bottom surface of the slide 42, and the limit rod 422 can be locked and fixed to the slide 42 by a limit rod screw 423. In this embodiment, each slide also has two limit rods 422.

[0043] The lower end of the limiting rod 422 is a limiting portion 4221, and the limiting portion 4221 can be reciprocatingly slidably penetrated in the limiting long hole 25 provided on the movable mold 2, and the limiting long hole 25 has a limiting step surface 251 to limit the limiting portion 4221. The limiting rod 422 is provided to provide a limiting protection for the rise, so as to prevent the slide drive 44 from driving the slide 42 and the slider 41 to rise excessively.

[0044] At the same time, the upper and lower surfaces of the slide 42 of this embodiment may also be convexly provided with slide positioning blocks 424, and the fixed mold 1 and the movable mold 2 are respectively concavely provided with slide positioning grooves 8 for matching the slide positioning blocks 424. This can facilitate the reset and positioning cooperation of the slide 42, the fixed mold 1 and the movable mold 2.

[0045] In this embodiment, guide pillars 26 are respectively provided around the movable mold 2, and guide holes 261 for the guide pillars 26 to pass through are provided around the fixed mold 1 and at both ends of the two slide seats 42, so as to facilitate the opening and closing of the mold.

[0046] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0047] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0048] In the description of the present application, “multiple” and “several” mean two or more, unless otherwise clearly and specifically defined.

Claims

1. A mold structure for a deep cavity product, characterized in that: It includes a fixed mold, a movable mold and a slider mechanism, wherein the slider mechanism is arranged between the fixed mold and the movable mold; The slider mechanism includes a slider, a slide seat, a slider drive and a slide seat drive; The bottom surface of the fixed mold forms an upper slider chamber, and the bottom surface of the movable mold forms a lower slider chamber, wherein the lower slider chamber has a protruding movable mold core; The sliders are symmetrically arranged in two pieces, and the two sliders are movably buckled on the outer side of the movable mold core, and an injection cavity is formed between the sliders and the movable mold core, and the upper and lower parts of the two sliders after buckling are respectively embedded in the upper slider cavity and the lower slider cavity; The two sliders are slidably assembled on the slide seat and are respectively controlled by the slider drive to move relatively close to or apart in the horizontal direction; the slide seat is located between the fixed mold and the movable mold, and the slide seat is controlled by the slider drive to drive the two sliders to move up and down in the lower slider chamber of the movable mold.

2. The mold structure of a deep cavity product according to claim 1, characterized in that: After the two sliding blocks are buckled, the side walls of the upper and lower parts are both inclined surfaces with the outer ends tilted inwards.

3. The mold structure of a deep cavity product according to claim 1, characterized in that: The two sliders are symmetrically arranged left and right, and there are two slide seats, which are symmetrically arranged front and back on the outside of the two sliders; a slide rail is arranged on the slide seat, and a slide groove slidably connected to the slide rail is arranged in the middle of the front and rear sides of the slider.

4. The mold structure of a deep cavity product according to claim 3, characterized in that: The left and right side ends of the two slide seats are respectively provided with mounting seats; the slider is driven by two driving cylinders, the two driving cylinders are respectively installed on the mounting seats, and are connected and fixed to the slider on the same side.

5. The mold structure of a deep cavity product according to claim 1, characterized in that: An upper hole is formed in the middle of the upper part after the two sliders are buckled together, and a lower hole is formed in the lower part for the movable mold core to pass through.

6. A mold structure for a deep cavity product according to claim 1 or 3, characterized in that: The slide drive includes a push rod connected to the bottom surface of the slide, the push rod can be reciprocatingly slidably penetrated in a push rod through hole provided on the movable mold, and the push rod is driven by external force to push against the slide and the module rises and falls.

7. The mold structure of a deep cavity product according to claim 6, characterized in that: The slide is also provided with a limiting rod, the upper end of which is connected to the bottom surface of the slide, and the lower end is a limiting part, which can be reciprocatingly slidably penetrated into a limiting long hole provided on the movable mold, and a limiting step is provided in the limiting long hole to limit the limiting part.

8. The mold structure of a deep cavity product according to claim 3, characterized in that: Guide pillars are respectively arranged around the movable mold, and guide holes for the guide pillars to pass through are arranged around the fixed mold and at both ends of the two slide seats.

9. A mold structure for a deep cavity product according to claim 1, 3 or 8, characterized in that: The upper and lower surfaces of the slide seat are convexly provided with slide seat positioning blocks, and the fixed mold and the movable mold are concavely provided with slide seat positioning grooves for matching with the slide seat positioning blocks.

10. The mold structure of a deep cavity product according to claim 1, characterized in that: The upper end surface and the lower end surface of the slider are respectively provided with slider positioning grooves, and the upper slider chamber and the lower slider chamber are respectively provided with slider positioning blocks for being inserted into the slider positioning grooves.

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