Simplified easy-to-use double-color interchangeable mold base
By designing a combination structure including insert plates, slots, and bidirectional screws, the disassembly and replacement process of the mold core is simplified, solving the problem of cumbersome mold core replacement in existing two-color interchangeable mold blanks, improving production efficiency and mold flexibility, and ensuring product quality and precision.
Patent Information
- Application Number
- CN202520389500.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Most existing two-color interchangeable mold blanks adopt an integrated structure, which makes the disassembly and replacement of the mold core cumbersome, affects the flexibility and maintainability of the mold, increases the risk of production interruption, and may lead to a decrease in mold precision.
The design incorporates a combination structure of insert plate, slot, bidirectional screw, connecting rod, nut plate, slot, clamping plate, driven gear, driving gear, rotating rod, and rotating head. By rotating the rotating head with a tool, the driving gear is driven, which in turn drives the driven gear and connecting rod to rotate, enabling quick engagement or disengagement of the mold core.
It simplifies the mold core replacement process, improves production efficiency, enhances the stability of the mold core, ensures product quality and precision, and reduces modification costs and time costs.
Smart Images

Figure CN223948389U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to two -color mould blank technical field, concretely is simple and easy to use type two -color interchangeable mould blank. BACKGROUND
[0002] Two -color mould blank is a kind of mould that can be in one injection molding process, through special mould design and injection system, two different colors or materials plastic is injected into mould cavity simultaneously or sequentially, forms the product with two -color or multicolor effect, this kind of mould structure realizes the synchronous forming and fusion of multiple colors or materials in mould, gives product more rich color and texture, is a senior technology in injection molding field.
[0003] The existing two -color interchangeable mould blank mostly adopts integrated structure setting, integrated structure often leads to the disassembly and replacement process of mould core become cumbersome and inefficient, greatly limit the flexibility and maintainability of mould, once mould core appears abrasion or needs to update to adapt to the production of new product, operating personnel often need to spend a lot of time and energy to carry out disassembly work, not only increase the risk of production interruption, also can lead to the decline of mould precision, influence the quality stability of final product. CONTENT OF UTILITY MODEL
[0004] The utility model is to provide simple and easy to use type two -color interchangeable mould blank to solve the problem that the existing two -color interchangeable mould blank mostly adopts integrated structure setting in the above background art, integrated structure often leads to the disassembly and replacement process of mould core become cumbersome and inefficient, greatly limit the flexibility and maintainability of mould, once mould core appears abrasion or needs to update to adapt to the production of new product, operating personnel often need to spend a lot of time and energy to carry out disassembly work, not only increase the risk of production interruption, also can lead to the decline of mould precision, influence the quality stability of final product.
[0005] To achieve the above object, the utility model provides the following technical scheme: Simplified easy-to-use double -colored interchangeable mould embryo, including the lower mould plate, the centre fixed mounting of lower mould plate top, the cavity is seted up in one side of mould seat, the centre is seted up in mould groove of mould seat top, the mould core is provided in the inside of mould groove, the fixed connection of the plug -in board is kept in the bottom of mould core both sides position, the clamping groove is seted up in the bottom position of two plug -in boards opposite sides, the insertion slot is seted up in the lower end of two plug -in boards of mould seat and lower mould plate top respectively, the centre of one side in lower mould plate is provided with two -way screw rod, one end of two -way screw rod is fixedly connected with connecting rod, the drive gear of one end of connecting rod is provided with, the nut plate of two -way screw rod surface both sides position is provided with, the fixed connection of the clamping plate is kept in the top position of two nut plates opposite sides, the side of drive gear is connected with driving gear and is engaged, the fixed connection of the rotating rod of driving gear top centre is kept, the rotating groove is seted up in the side position of lower mould plate top, the rotating head is provided in the inside of rotating groove, the rotating rod of rotating head bottom centre is fixedly connected with.
[0006] Compared with the prior art, the utility model has the advantages that:
[0007] The simplified easy-to-use double -colored interchangeable mould embryo, through the design of plug -in board, insertion slot, two -way screw rod, connecting rod, nut plate, clamping groove, clamping plate, drive gear, driving gear, rotating rod and rotating head, the operator only needs to rotate the rotating head through the tool, can drive the driving gear rotation, and then drives the drive gear and connecting rod to rotate through the gear engagement, finally drives the two -way screw rod to rotate, and the rotation of two -way screw rod drives the two nut plates to move towards each other or away from each other, when the nut plate moves, the clamping plate fixed on its top moves, thereby realizing the clamping or unlocking of the clamping groove on the plug -in board of mould core bottom, this process is not only simple and easy to operate, but also greatly shortens the time of mould core replacement, improves production efficiency, in addition, the design also enhances the stability of mould core fixation, under the joint action of two -way screw rod and nut plate, the clamping plate can be tightly clamped in the clamping groove, ensure that the mould core does not deviate or loosen in the injection molding process, thereby guaranteeing the quality and precision of the product, at the same time, the compact structure of the mould embryo, small space occupation, easy to integrate into the existing injection molding production line, reduces the transformation cost and time cost of enterprise. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is the structure schematic view of the utility model;
[0009] Figure 2 It is the structure bottom view of the mould core of the utility model;
[0010] Figure 3 It is the structure perspective view of nut plate and clamping plate of the utility model;
[0011] Figure 4The utility model discloses a structure main view.
[0012] In the figure: 1, lower form board;2, die holder;3, die groove;4, die core;5, plugboard;6, slot;7, two-way screw;8, connecting rod;9, nut plate;10, clamping groove;11, clamping plate;12, slide bar;13, first branch plate;14, second branch plate;15, driven gear;16, driving gear;17, rotating rod;18, rotating groove;19, rotating head. DETAILED DESCRIPTION
[0013] The technical scheme in the embodiments of the utility model will be apparently and completely described in the embodiments of the utility model in combination with the drawings, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.
[0014] Please refer to Figures 1-4 The utility model provides a technical scheme: simple and easy to use type two -color exchange mould embryo, including lower form board 1, the center fixed mounting of lower form board 1 top has die holder 2, and the cavity is seted up to one side in die holder 2, and the center of die holder 2 top is seted up die groove 3, and the inside of die groove 3 is provided with die core 4, and the bottom of die core 4 is fixedly connected with plugboard 5 at both sides, and the bottom position of the opposite side of two plugboards 5 is seted up clamping groove 10, and the top of die holder 2 and lower form board 1 correspond the lower end of two plugboards 5 and are seted up slot 6, and the center of one side in lower form board 1 is provided with two -way screw 7, and one end of two -way screw 7 is fixedly connected with connecting rod 8, and one end of connecting rod 8 is provided with driven gear 15, and the position of both sides on the surface of two -way screw 7 is provided with nut plate 9, and the top position of the opposite side of two nut plates 9 is fixedly connected with clamping plate 11, and one side of driven gear 15 is engaged and is connected with driving gear 16, and the top of driving gear 16 is fixedly connected with rotating rod 17, and the position of one side of the top of lower form board 1 is seted up rotating groove 18, and the inside of rotating groove 18 is provided with rotating head 19, and the bottom of rotating head 19 is fixedly connected with rotating rod 17.
[0015] The bottom of two plugboards 5 is seted up clamping groove 10 respectively and extends to the inside of lower form board 1, for positioning die core 4 in die groove 3.
[0016] The other end of two -way screw 7 and the bearing fixedly installed in one side center of lower form board 1 are movably connected, and two -way screw 7 is rotatably supported.
[0017] Two nut plates 9 are respectively threaded with the positive thread groove and the reverse thread groove on the inner wall and the positive thread tooth and the reverse thread tooth on the surface of the bidirectional screw rod 7, and the two nut plates 9 are synchronously moved relative or away from each other with the rotation direction of the bidirectional screw rod 7.
[0018] Two clamping plates 11 are respectively penetrated into the interior of two clamping grooves 10 and clamped with the inner wall of the clamping groove 10, and the mold core 4 can be fixed in the mold groove 3 through the clamping of the clamping plate 11 and the clamping groove 10.
[0019] The top of the center position and the inner side in the lower die plate 1 are respectively fixedly connected with the first supporting plate 13 and the second supporting plate 14, the one side of the first supporting plate 13 and the top of the second supporting plate 14 are both fixedly installed with bearings, one end of the connecting rod 8 is penetrated into the outside of the bearing and fixedly connected with the center of one side of the driven gear 15, so that the connecting rod 8 is stably rotated, the outer wall of the connecting rod 8 is movably connected with the inner ring of the bearing, the lower end of the rotating rod 17 is penetrated into the outside of the bearing and fixedly connected with the center of the top of the driving gear 16, the outer wall of the rotating rod 17 is fixedly connected with the inner ring of the bearing, so as to ensure the stability of the rotation of the rotating rod 17, the slide rod 12 is fixedly installed on the inner wall of the lower die plate 1, one end of the slide rod 12 is sequentially penetrated into the outside of the two nut plates 9 and fixedly connected with the bottom of one side of the first supporting plate 13, so as to ensure the stability of the movement of the nut plate 9.
[0020] The four corners of the top of the lower die plate 1 are fixedly installed with guide rods, the top of the surface of the four guide rods is slidably installed with guide sleeves, the top of the four guide sleeves is fixedly installed with an upper die plate, and the center of the bottom of the upper die plate is fixedly installed with an upper mold.
[0021] When the mold core 4 needs to be disassembled, the operator first rotates the rotating head 19 in the rotating groove 18 on one side of the top of the lower mold plate 1 using a screwdriver. The rotation of the rotating head 19 drives the rotating rod 17 fixedly connected to the bottom center of the rotating head 19 to rotate. The rotation of the rotating rod 17 in turn drives the driving gear 16 fixedly connected to the top center of the rotating rod 17 to rotate. The rotation of the driving gear 16 drives the driven gear 15 to rotate through gear meshing. The rotation of the driven gear 15 is transmitted to the bidirectional screw rod 7 through the connecting rod 8, so that the bidirectional screw rod 7 stably rotates under the support of the bearing fixedly installed at the center of one side of the lower mold plate 1. With the rotation of the bidirectional screw rod 7, the positive and reverse screw threads respectively formed on the two sides of the surface of the bidirectional screw rod 7 interact with the positive and reverse screw grooves formed on the inner wall of the two nut plates 9, so that the two nut plates 9 move relatively along the length direction of the bidirectional screw rod 7. This movement drives the clamping plate 11 fixedly connected to the top of the nut plate 9 to move until the clamping plate 11 is completely detached from the clamping groove 10 on the bottom of the plug plate 5. At this time, the mold core 4 is no longer fixed by the clamping plate 11, and the operator can easily take it out of the mold groove 3, completing the disassembly process of the mold core 4. The entire disassembly process is simple and fast, greatly improving the flexibility and maintainability of the mold.
[0022] In summary: the simplified and easy-to-use two-color interchangeable mold core, through the design of the plug plate 5, the plug groove 6, the bidirectional screw rod 7, the connecting rod 8, the nut plate 9, the clamping groove 10, the clamping plate 11, the driven gear 15, the driving gear 16, the rotating rod 17 and the rotating head 19, the operator only needs to rotate the rotating head 19 by a tool, which can drive the driving gear 16 to rotate, and then drive the driven gear 15 and the connecting rod 8 to rotate through gear meshing, and finally drive the bidirectional screw rod 7 to rotate. The rotation of the bidirectional screw rod 7 will drive the two nut plates 9 to move towards or away from each other. When the nut plate 9 moves, the clamping plate 11 fixedly connected to the top of the nut plate 9 will move, thereby achieving the clamping or unlocking of the clamping groove 10 on the plug plate 5 at the bottom of the mold core 4. This process not only simplifies the operation, but also greatly shortens the time for replacing the mold core 4, improves the production efficiency, and enhances the stability of the mold core 4. Under the joint action of the bidirectional screw rod 7 and the nut plate 9, the clamping plate 11 can be tightly clamped in the clamping groove 10, ensuring that the mold core 4 will not shift or loosen during the injection molding process, thereby ensuring the quality and precision of the product. At the same time, the mold core structure is compact, occupies small space, and is easy to integrate into the existing injection molding production line, reducing the transformation cost and time cost of the enterprise.
[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. Simplified easy-to-use two-color interchangeable mold core comprising a lower mold plate (1), characterized in that: The bottom of the lower die plate (1) is fixedly connected with the lower die plate (1), and the lower die plate (1) is fixedly connected with the lower die plate (1).
2. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The bottom of the lower die plate (1) is fixedly connected with the lower die plate (1), and the lower die plate (1) is fixedly connected with the lower die plate (1).
3. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The other end of the two-way screw rod (7) is movably connected with the bearing fixedly installed in the center of the inner side of the lower die plate (1).
4. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The two nut plates (9) are respectively screwed with the positive screw thread and the reverse screw thread on the surface of the two-way screw rod (7) through the positive screw thread groove and the reverse screw thread groove formed in the inner wall thereof.
5. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The opposite sides of the two clamping plates (11) are respectively inserted into the inner sides of the two clamping grooves (10) and clamped with the inner walls of the clamping grooves (10).
6. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The center of the inner side of the lower die plate (1) is fixedly connected with the first supporting plate (13) and the second supporting plate (14) on the top thereof, and the one side of the first supporting plate (13) and the top of the second supporting plate (14) are fixedly installed with the bearing.
7. The simplified easy-to-use bi-color interchangeable mold core according to claim 1, wherein: The lower end of the connecting rod (8) is inserted into the outer side of the bearing and fixedly connected with the center of the one side of the driven gear (15), and the outer wall of the connecting rod (8) is movably connected with the inner ring of the bearing. The lower end of the connecting rod (8) is inserted into the outer side of the bearing and fixedly connected with the center of the one side of the driven gear (15), and the outer wall of the connecting rod (8) is movably connected with the inner ring of the bearing. The lower end of the connecting rod (8) is inserted into the outer side of the bearing and fixedly connected with the center of the one side of the driven gear (15), and the outer wall of the connecting rod (8) is movably connected with the inner ring of the bearing. The lower end of the connecting rod (8) is inserted into the outer side of the bearing and fixedly connected with the center of the one side of the driven gear (15), and the outer wall of the connecting rod (8) is movably connected with the inner ring of the bearing.