Low-cost mold with spliced mold cores

Abstract

The utility model discloses a low-cost mold for splicing mold cores, and relates to the technical field of injection molds. The sliding blocks are embedded in the front side and the rear side of the lower side wall of the upper module correspondingly, the lower ends of the feeding pipes are movably inserted into the sliding blocks, and limiting plates are arranged on the sides, away from the lower module, of the sliding blocks correspondingly and connected with the lower module through connecting rods. The mold core frame is arranged in the upper mold block, the four side edges of the mold core frame are connected with the upper mold block through bolts, and a mounting plate is arranged on the upper side in the mold core frame; the connecting mechanisms are symmetrically arranged on the front side and the rear side of the two side edges of the mold core frame in pairs, and are connected with the mounting plate; every two adjacent mold core bodies abut against each other, mounting grooves are formed in the top walls of the mold core bodies correspondingly, mounting sliding rails are slidably arranged in the mounting grooves correspondingly, and the mounting sliding rails are fixed to the lower surface of the mounting plate at equal intervals. Through the modular splicing design, the mold core can be quickly replaced, and the mold cost is reduced; the sliding block and the limiting plate guarantee stable injection molding, and the guide block improves the ejection precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to a low -cost splicing mould core's mould. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size. Injection molding is a processing method used when mass producing some complex-shaped parts, which is to inject high-pressure molten plastic into a mold cavity by an injection molding machine, and to obtain a molded product after cooling and solidification. In practice, it is difficult to manufacture a large injection mold with an integrated structure, or the mold core is designed as a structure of multiple split mold cores for consideration of structural design. Such a splicing mold has the advantages of improving production efficiency, reducing processing difficulty and cost. However, the splicing mold also has defects, such as difficulty in ensuring the splicing accuracy of the split mold cores and difficulty in achieving the designed accuracy of the shape of the injection molded part. The positioning firmness of the split mold cores is required to be higher when high-pressure injection is performed, and the existing splicing mold is difficult to maintain in a stable position during the high-pressure holding process. SUMMARY

[0003] The utility model discloses to the defects and insufficient of prior art, provide a kind of low -cost splicing mould core's mould with reasonable design, convenient to use, can effectively solve the defects of above-mentioned prior art.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains lower module, upper module, ejector pin plate, guide block and feed pipe, the upper side of the lower module is suspended with upper module, the both sides of the lower surface of the lower module are fixed with pad foot, two pad feet are provided with two top pin plates abutting each other between two pad feet, guide block is movably arranged inside the ejector pin plate symmetrically in front and back, the guide block is fixedly connected with the bottom wall of the lower module, the upper side of the lower module is provided with feed pipe, and the feed pipe is inserted in the upper module; it also contains:

[0005] Slide block, the slide block is two, and it is respectively embedded in the inside of the front and back sides of the lower side wall of the upper module, the lower end of the feed pipe is movably inserted in the slide block, the side of the slide block away from the lower module is provided with limit plate, and the limit plate is connected with the lower module by connecting rod;

[0006] Mould core frame, the mould core frame is provided in the upper module, the four sides of the mould core frame are connected with the upper module by bolts, and the upper side in the mould core frame is provided with mounting plate;

[0007] Connecting mechanism, the connecting mechanism is four, and it is two two left and right symmetrical and provided with the front and back sides of the two side edges of the mould core frame, and the connecting mechanism is connected with the mounting plate;

[0008] The mold core is provided with a mounting groove on the top wall, and a mounting sliding strip is slidably arranged in the mounting groove and fixed on the lower surface of the mounting plate at equal intervals.

[0009] Through the above technical scheme, the raw material enters the slider from the feeding pipe, then enters the mold core frame and the lower mold, and after the raw material is injection molded, the upper mold is moved upward, so that the molded material can be taken out.

[0010] As a further improvement of the utility model, a plurality of protrusions are equidistantly arranged on the two side walls of the thimble plate and slidably arranged in the sliding grooves on the two side pad foot side walls.

[0011] Through the above technical scheme, the stability of the thimble plate when moving up and down can be increased.

[0012] As a further improvement of the utility model, the connecting mechanism comprises:

[0013] The connecting plug-in plate is inserted into the rectangular groove on one side wall of the mounting plate, and the other side of the connecting plug-in plate is inserted into the mold core frame.

[0014] The movable seat is movably arranged in the groove on the upper surface of the mold core frame, one side wall of the movable seat is fixedly connected with the side of the connecting plug-in plate inside the mold core frame, and an inclined groove is arranged on the top wall of the movable seat away from the side of the connecting plug-in plate.

[0015] The pushing block is arranged in the inclined groove, the inclined edge on the side wall of the pushing block is arranged in abutment with the inner wall of the inclined groove, and the pushing block is fixed on the inner top wall of the upper mold.

[0016] The tension spring is provided with two, and is symmetrically arranged on both sides of the pushing block, and the two ends of the tension spring are fixed on the inner wall of the groove on one side of the mold core frame and the side wall of the movable seat.

[0017] Through the above technical scheme, when the upper mold is separated from the mold core frame, the upper mold drives the pushing block to move upward, so that the pushing block is separated from the inclined groove on the movable seat, the tension of the tension spring drives the connecting plug-in plate to move to one side of the groove through the movable seat, so that the connecting plug-in plate is separated from the mounting plate, and the mounting plate is taken out from the mold core frame.

[0018] The further improvement of the utility model, the inside of the tension spring is provided with a guide rod, one end of the guide rod is fixed on the side wall of the movable seat, the other end of the guide rod is movably inserted in the die core frame.

[0019] Through the above technical scheme, the tension spring can be supported and guided by the guide rod without affecting the expansion and contraction of the tension spring.

[0020] The further improvement of the utility model, one side of the installation sliding strip is provided with a resisting rod, the lower end of the resisting rod is inserted in the cylindrical groove on the bottom wall in the installation groove, a return spring is sleeved and fixed on the resisting rod, the return spring is arranged in the cylindrical groove in the installation plate, the upper end of the return spring is fixedly connected with the inner top wall of the cylindrical groove, the upper end of the resisting rod passes through the top wall of the installation plate and is arranged in abutment with the inner top wall of the upper module;

[0021] Through the above technical scheme, the installation sliding strip can be limited by the resisting rod during use, when replacement is needed, the upper module is separated from the resisting rod, under the elastic force of the return spring, the resisting rod is driven to move upwards, so that the resisting rod is separated from the installation sliding strip, and the removal and installation of the die core are not affected.

[0022] The further improvement of the utility model, the top wall of the die core is provided with an identification layer, and the identification layer is located on one side of the installation groove.

[0023] Through the above technical scheme, the die core can be labeled, and the required die core to be replaced can be accurately taken.

[0024] Compared with the prior art, the utility model has the advantages that the low-cost spliced die core die can realize quick replacement of the die core through modularized splicing design, and the die cost is reduced; the sliding block and the limiting plate ensure stable injection molding, and the guide block improves ejection precision, and the utility model has the advantages of reasonable setting and low manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the utility model.

[0026] Figure 2 It is an exploded view of the utility model.

[0027] Figure 3 It is an exploded view of the installation plate, the die core frame and the die core in the utility model.

[0028] Figure 4 It is Figure 3 It is an enlarged view of A part in the utility model.

[0029] Figure 5 It is an exploded view of the installation plate and the connecting mechanism in the utility model.

[0030] Figure 6 This is a cross-sectional view of the core of the mold in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] Lower module 1, upper module 2, ejector plate 3, guide block 4, feed tube 5, pad 6, slider 7, limit plate 8, mold core frame 9, mounting plate 10, connecting mechanism 11, connecting insert plate 11-1, movable seat 11-2, tilting groove 11-2-1, push block 11-3, tension spring 11-4, mold core 12, mounting slide bar 13, protrusion 14, guide rod 15, abutment rod 16, return spring 17, marking layer 18. Detailed Implementation

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0034] like Figures 1-6 As shown, this embodiment includes a lower module 1, an upper module 2, an ejector plate 3, a guide block 4, and a feed tube 5. The upper module 2 is suspended above the lower module 1. Pads 6 are bolted to both sides of the lower surface of the lower module 1. Two abutting ejector plates 3 are arranged between the two pads 6. Several protrusions 14 are equidistantly arranged on both sides of the ejector plate 3. The protrusions 14 are slidably arranged in the grooves on the side walls of the pads 6, which increases the stability of the ejector plate 3 when moving up and down. Guide blocks 4 are symmetrically and movable inside the ejector plate 3. The guide blocks 4 are fixedly connected to the bottom wall of the lower module 1 by bolts. A feed tube 5 is provided on the upper side of the lower module 1 and is inserted through the upper module 2. It also includes:

[0035] Slider 7, there are two sliders 7, and they are respectively embedded in the front and rear sides of the lower side wall of the upper module 2. The lower end of the feed pipe 5 is movably inserted into the slider 7. Each slider 7 is provided with a limit plate 8 on the side away from the lower module 1. The limit plate 8 is connected to the lower module 1 through a connecting rod.

[0036] Mold core frame 9 is set inside the upper module 2. The four sides of the mold core frame 9 are connected to the upper module 2 by bolts. An mounting plate 10 is set on the upper side inside the mold core frame 9.

[0037] The connecting mechanism 11 consists of four parts, which are symmetrically arranged in pairs on the front and back sides of the two sides of the mold core frame 9. The connecting mechanism 11 is connected to the mounting plate 10.

[0038] A plurality of die cores 12 are arranged in abutment with each other, and a mounting groove is arranged on the top wall of each die core 12. A mounting slide strip 13 is slidably arranged in the mounting groove, and the mounting slide strip 13 is equidistantly welded and fixed on the lower surface of the mounting plate 10. An identification layer 18 is arranged on the top wall of the die core 12, and the identification layer 18 is located on one side of the mounting groove, so that the die core 12 can be labeled, and the required die core 12 to be replaced can be accurately taken. Embodiment 2

[0039] Referring to Figures 3-5 The connecting mechanism 11 comprises:

[0040] A connecting plug plate 11-1 is inserted into a rectangular groove on one side wall of the mounting plate 10, and the other side of the connecting plug plate 11-1 is inserted into the die core frame 9.

[0041] A movable seat 11-2 is movably arranged in a groove on the upper surface of the die core frame 9. One side wall of the movable seat 11-2 is fixedly connected to one side of the connecting plug plate 11-1 inside the die core frame 9. An inclined groove 11-2-1 is formed in the top wall of the movable seat 11-2 away from one side of the connecting plug plate 11-1.

[0042] A pushing block 11-3 is arranged in the inclined groove 11-2-1. An inclined edge on the side wall of the pushing block 11-3 is arranged in abutment with the inner wall of the inclined groove 11-2-1. The pushing block 11-3 is fixed on the inner top wall of the upper die module 2.

[0043] Two tension springs 11-4 are symmetrically arranged on both sides of the pushing block 11-3. The two ends of the tension spring 11-4 are fixed on the inner wall of the groove on one side of the die core frame 9 and the side wall of the movable seat 11-2, respectively. A guide rod 15 is arranged in the tension spring 11-4. One end of the guide rod 15 is fixed on the side wall of the movable seat 11-2, and the other end of the guide rod 15 is movably inserted into the die core frame 9. The guide rod 15 supports and guides the tension spring 11-4 without affecting the extension and contraction of the tension spring 11-4. Embodiment 3

[0044] Referring to Figure 3 , Figure 6As shown, on the basis of embodiment 1, one side of the installation slide 13 is provided with a resisting rod 16, the lower end of the resisting rod 16 is inserted into the cylindrical groove on the bottom wall of the installation groove, the resisting rod 16 is sleeved and fixed with a return spring 17, the return spring 17 is arranged in the cylindrical groove inside the installation plate 10, the upper end of the return spring 17 is fixedly connected with the inner top wall of the cylindrical groove, and the upper end of the resisting rod 16 is arranged in abutment with the inner top wall of the upper module 2 after penetrating through the top wall of the installation plate 10.

[0045] When the utility model is used, the raw materials enter the slider 7 from the feeding pipe 5, then enter the mold core frame 9 and the lower module 1, after the raw materials are injection molded, the upper module 2 is moved upwards, so that the molded material can be taken out, when the mold core 12 needs to be replaced, the bolts between the mold core frame 9 and the upper module 2 are loosened, when the upper module 2 is separated from the mold core frame 9, the upper module 2 drives the pushing block 11-3 to move upwards, so that the pushing block 11-3 is separated from the inclined groove 11-2-1 on the movable seat 11-2, the tension of the tension spring 11-4 drives the connecting plug plate 11-1 to move to one side of the groove through the movable seat 11-2, so that the connecting plug plate 11-1 is separated from the installation plate 10, so that the installation plate 10 can be taken out from the mold core frame 9, and then the mold core 12 to be replaced is taken off from the installation plate 10, so that the installation slide 13 is separated from the installation plate 10, thereby facilitating replacement, during use, the installation slide 13 can be limited by the resisting rod 16, when replacement is needed, the upper module 2 is separated from the resisting rod 16, under the elastic force of the return spring 17, the resisting rod 16 is driven to move upwards, so that the resisting rod 16 is separated from the installation slide 13, and the dismounting and mounting of the mold core 12 are not affected.

[0046] Compared with the prior art, the utility model has the beneficial effects as follows:

[0047] 1. The utility model adopts a split structure design, the upper module 2, the lower module 1 and the mold core frame 9 are connected through bolts and can be quickly disassembled, the mold core 12 is flexibly combined with the installation plate 10 through the installation slide 13, when replacement is needed, only the connecting mechanism 11 needs to be loosened, so that the whole can be taken out, the downtime is greatly reduced, and the production efficiency is improved;

[0048] 2. The connecting mechanism 11 utilizes the linkage design of the tension spring 11-4 and the inclined groove 11-2-1, the installation plate 10 is automatically unlocked when the upper module is lifted, and manual intervention is not needed. The guide rod 15 ensures that the tension spring 11-4 moves stably and avoids jamming, which reduces the operation difficulty and reduces the risk of human error;

[0049] 3. The protrusions 14 on both sides of the ejector plate 3 are matched with the sliding grooves of the pads 6, the guiding property of the up-down movement is enhanced, deviation is prevented, the limiting effect of the guide block 4 is combined, the ejecting and resetting processes of the ejector pin are stable and accurate, and the service life of the mold is prolonged;

[0050] 4、The top of the die core 12 is provided with a mark layer 18, which facilitates quick identification and positioning of the target die core, the contact rod 16 is automatically separated from the installation slide bar 13 under the action of the reset spring 17, and the mark system is matched to realize accurate replacement, effectively avoiding the problems of misloading and missing loading.

[0051] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A low-cost mold for splicing mold cores, comprising a lower module (1), an upper module (2), an ejector plate (3), a guide block (4), and a feed tube (5), wherein the upper module (2) is suspended above the lower module (1), and pads (6) are fixed on both sides of the lower surface of the lower module (1), and two abutting ejector plates (3) are arranged between the two pads (6), and guide blocks (4) are symmetrically and movable inside the ejector plates (3), the guide blocks (4) are fixedly connected to the bottom wall of the lower module (1), and a feed tube (5) is arranged on the upper side of the lower module (1), the feed tube (5) being inserted through the upper module (2); characterized in that: It also contains: The slider (7) is two, and it is embedded in the front and rear of the upper module (2) lower side wall, the lower end of the feeding pipe (5) is movably inserted into the slider (7), the side of the slider (7) away from the lower module (1) is provided with a limiting plate (8), and the limiting plate (8) is connected with the lower module (1) through a connecting rod; The die core frame (9) is provided in the upper module (2), and the four sides of the die core frame (9) are connected with the upper module (2) through bolts, and the upper side of the die core frame (9) is provided with a mounting plate (10); The connecting mechanism (11) is four, and it is symmetrically arranged on the front and rear of the two side edges of the die core frame (9), and the connecting mechanism (11) is connected with the mounting plate (10); The die core (12) is provided with a mounting groove on the top wall, and the mounting groove is slidably provided with a mounting sliding strip (13), and the mounting sliding strip (13) is equidistantly fixed on the lower surface of the mounting plate (10).

2. The low cost mold for splicing a die slug as recited in claim 1, wherein: The two side walls of the top needle plate (3) are provided with a plurality of protrusions (14) at equal intervals, and the protrusions (14) are slidably arranged in the sliding groove on the side wall of the two side pads (6).

3. The low cost mold for splicing a die slug as recited in claim 1, wherein: The connecting mechanism (11) contains: The connecting plugboard (11-1) is inserted into the rectangular groove on one side wall of the mounting plate (10), and the other side of the connecting plugboard (11-1) is inserted into the die core frame (9); The movable seat (11-2) is movably arranged in the groove on the upper surface of the die core frame (9), one side of the connecting plugboard (11-1) inside the die core frame (9) is fixedly connected with one side wall of the movable seat (11-2), and the top wall of the movable seat (11-2) away from one side of the connecting plugboard (11-1) is provided with an inclined groove (11-2-1); The push block (11-3) is provided in the inclined groove (11-2-1), the inclined edge on the side wall of the push block (11-3) is in contact with the inner wall of the inclined groove (11-2-1), and the push block (11-3) is fixed on the inner top wall of the upper module (2); The tension spring (11-4) is two, and it is symmetrically arranged on the two sides of the push block (11-3), and the two ends of the tension spring (11-4) are respectively fixed on the inner wall of the groove on one side of the die core frame (9) and the side wall of the movable seat (11-2).

4. A mold for a low cost singulation of a die according to claim 3, characterized in that: The inside of the tension spring (11-4) is provided with a guide rod (15), one end of the guide rod (15) is fixed on the side wall of the movable seat (11-2), and the other end of the guide rod (15) is movably inserted into the die core frame (9).

5. The low cost mold for splicing a die slug as recited in claim 1, wherein: The installation slide (13) is provided with a resisting rod (16) on one side, the lower end of the resisting rod (16) is inserted into a cylindrical groove on the bottom wall of the installation groove, a reset spring (17) is sleeved and fixed on the resisting rod (16), the reset spring (17) is arranged in the cylindrical groove in the installation plate (10), the upper end of the reset spring (17) is fixedly connected with the inner top wall of the cylindrical groove, and the upper end of the resisting rod (16) is arranged in abutment with the inner top wall of the upper module (2) after penetrating through the top wall of the installation plate (10).

6. The low cost mold for splicing a die slug as recited in claim 1, wherein: The top wall of the mold core (12) is provided with an identification layer (18), and the identification layer (18) is located on one side of the installation groove.

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