Double-slide injection mold
By designing a dual-slide injection mold and utilizing relatively arranged slide components and molding inserts, the precision and quality problems of traditional molds when molding plastic products with internal through holes are solved, achieving efficient production and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional injection molds are difficult to accurately construct internal structures during the molding process, such as plastic products with through holes in the middle, resulting in incomplete molding, serious dimensional deviations, low product qualification rate, and the need for cumbersome secondary machining, which increases production costs and time costs.
A dual-slide injection mold is used. The first and second slide components are arranged in opposite directions and combined with molding inserts to achieve precise molding of plastic in the mold cavity. The step parts of the first and second slide seats cooperate with the step grooves to ensure motion stability and precise positioning, and reduce mold wear.
It significantly shortens the production cycle, increases output per unit time, improves molding quality, reduces scrap rate and mold wear, lowers maintenance costs, and improves production efficiency.
Smart Images
Figure CN224060360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically a double-row injection mold. Background Technology
[0002] In the injection molding process of plastic products, as the market's demands for diversified designs and refined performance of plastic products continue to rise, the limitations of traditional injection molds are becoming increasingly apparent. Due to the material characteristics of plastic products, they are easily affected by factors such as temperature and pressure during the molding process, leading to problems such as dimensional accuracy deviations and surface quality defects.
[0003] For plastic products with internal structures, such as through-holes running through the center, traditional injection molds, relying solely on simple upper and lower mold structures, struggle to accurately construct the corresponding molding structure within the mold cavity. Due to the high fluidity of plastics during injection molding, ordinary molds cannot effectively control their filling pattern within the mold cavity, resulting in incomplete molding or significant dimensional deviations at the through-hole areas, leading to low product yield. This often necessitates tedious secondary machining to correct the through-holes, significantly increasing production and time costs. Furthermore, the secondary machining process is highly susceptible to further damage to the overall product quality and dimensional accuracy due to inaccurate positioning and other issues.
[0004] Therefore, it is necessary to propose a new technical solution to address the aforementioned problems. Utility Model Content
[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.
[0006] A double-slide injection mold includes an upper mold and a lower mold. The upper mold has an upper mold core, and the lower mold has a lower mold core. The upper mold and the lower mold are mated together to form a mold cavity for molding a product. A first slide component and a second slide component are disposed between the upper mold and the lower mold in a relatively opposite manner.
[0007] The first sliding component includes a first inclined guide post fixed to the upper mold and a first sliding seat slidable to the lower mold. A first insert is embedded in the first sliding seat, and a first product contour part that abuts against the mold cavity is provided on the side of the first insert facing the mold cavity.
[0008] The second sliding assembly includes a second inclined guide post fixed to the upper mold and a second sliding seat slidable to the lower mold. A second insert is embedded in the second sliding seat, and a second product contour part that abuts against the mold cavity is provided on the side of the second insert facing the mold cavity.
[0009] A molding insert corresponding to the mold cavity is fitted in the middle position of the lower mold core. A through hole is opened on the side of the molding insert, and the through hole extends from the left side of the molding insert to its right side. The first row seat and the second row seat are located on the left and right sides of the molding insert, respectively, and the first product contouring part and the second product contouring part are respectively connected and cooperated with the through hole.
[0010] As a further embodiment of this utility model: the first row seat and the second row seat are each provided with a first step portion on the side facing the mold cavity, and a first step groove adapted to the first step portion is opened on the side of the lower mold core, and the first step portion and the first step groove are connected and cooperated.
[0011] As a further embodiment of this utility model: the first row seat and the second row seat are each provided with a second step portion on the side facing the mold cavity, and the top side of the molding insert is provided with a second step groove adapted to the second step groove, and the second step portion and the second step groove are mated and cooperated.
[0012] As a further embodiment of this utility model: the first row seat has a first extension end on the side facing the mold cavity, and the second row seat has a second extension end on the side facing the mold cavity, and the first extension end and the second extension end are mated together at the top of the molding insert; wherein, the second step is connected to the lower ends of the first extension end and the second extension end respectively.
[0013] As a further embodiment of this utility model: the first row seat located below its first extension end and the second row seat located below its second extension end are respectively formed with clearance positions corresponding to the mold cavity, and the first product contouring part and the second product contouring part respectively connect and cooperate with the through hole through the corresponding clearance positions.
[0014] As a further embodiment of this utility model: the first insert extends to the outside of the first row seat on the side facing the mold cavity to form the first product contour part;
[0015] The second insert extends to the outside of the second row seat on the side facing the mold cavity to form the second product profile.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This injection mold significantly shortens the production cycle and increases output per unit time through the relatively arranged first and second sliding components. In conjunction with the molding insert, it provides load-bearing support, significantly improving molding quality and reducing scrap rate. At the same time, the short-stroke movement of the two sliding components and the buffering effect of the molding insert reduce component wear, reduce mold wear and maintenance costs, and comprehensively improve production efficiency.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0020] Figure 1 This is a cross-sectional structural schematic diagram of this utility model from one perspective;
[0021] Figure 2 This is a cross-sectional structural schematic diagram from another perspective of this utility model;
[0022] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.
[0023] The reference numerals and names in the figure are as follows:
[0024] 1. Upper mold; 2. Lower mold; 3. Upper mold core; 4. Lower mold core; 5. Mold cavity; 6. First inclined guide post; 7. First slide seat; 8. First insert; 9. First product contour part; 10. Second inclined guide post; 11. Second slide seat; 12. Second insert; 13. Second product contour part; 14. Molding insert; 15. Through hole; 16. First step part; 17. First step groove; 18. Second step part; 19. Second step groove; 20. First extension end; 21. Second extension end; 22. Clearance. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-3In this embodiment of the present invention, a double-slide injection mold includes an upper mold 1 and a lower mold 2. The upper mold 1 has an upper mold core 3, and the lower mold 2 has a lower mold core 4. The upper mold 1 and the lower mold 2 are mated together so that the upper mold core 3 and the lower mold core 4 are mated together to form a mold cavity 5 for molding a product. A first slide component and a second slide component are provided between the upper mold 1 and the lower mold 2 in a relatively opposite manner.
[0027] The first sliding assembly includes a first inclined guide post 6 fixed to the upper mold 1 and a first sliding seat 7 slidable to the lower mold 2. The first sliding seat 7 is fitted with a first insert 8, and the first insert 8 is provided with a first product contouring part 9 that abuts against the mold cavity 5 on the side facing the mold cavity 5.
[0028] The second sliding assembly includes a second inclined guide post 10 fixed to the upper mold 1 and a second sliding seat 11 slidable to the lower mold 2. The second sliding seat 11 is fitted with a second insert 12, and the second insert 12 is provided with a second product contour part 13 that abuts against the mold cavity 5 on the side facing the mold cavity 5.
[0029] A molding insert 14 corresponding to the mold cavity 5 is fitted in the middle position of the lower mold core 4. A through hole 15 is opened on the side of the molding insert 14, and the through hole 15 extends from the left side of the molding insert 14 to its right side. The first row seat 7 and the second row seat 11 are located on the left and right sides of the molding insert 14, respectively, and the first product contouring part 9 and the second product contouring part are respectively connected and cooperated with the through hole 15.
[0030] In common injection molds, when a single slide component completes the forming of the product through hole 15, it requires a long stroke to build a complete hole structure, which consumes a lot of mold opening and closing time. This utility model adopts a first slide component and a second slide component arranged opposite to each other. When the mold opens and closes, the first inclined guide post 6 and the second inclined guide post 10 fixed on the upper mold 1 respectively drive the first slide seat 7 and the second slide seat 11 that can slide on the lower mold 2 to slide synchronously in opposite directions. This opposite movement mode greatly shortens the time required to build the product through hole 15, thereby effectively and greatly improving production efficiency.
[0031] The molding insert 14, which is fitted in the middle of the lower mold core 4, has a through hole 15 running from left to right on its side, which is the key part that supports the through hole 15 of the molded product. The first insert 8, which is fitted in the first row seat 7, and the second insert 12, which is fitted in the second row seat 11, have first product contour parts 9 and second product contour parts 13 facing the mold cavity 5 respectively. They are precisely connected from both sides of the through hole 15 of the molding insert 14. During the injection molding process, the three work together to form a closed molding space, which restricts the flow of plastic in the through hole 15 area and guides it to fill according to the predetermined shape and size, thereby realizing the precise molding of the through hole 15 structure or other internal structures of the product.
[0032] This injection mold significantly shortens the production cycle and increases the output per unit time through the relatively set first and second sliding components; together with the molding insert 14, it provides load-bearing support, significantly improves molding quality, and reduces scrap rate; at the same time, the short stroke movement of the double sliding components and the buffering effect of the molding insert 14 reduce component wear, reduce mold wear and maintenance costs, and comprehensively improve production efficiency.
[0033] Understandably, the molding insert 14 is also used to help the product form its internal structure. On this basis, by adding the first row component and the second row component to cooperate with the molding insert 14, the internal structure of the product and the through hole 15 corresponding to the two sides of the internal structure are realized.
[0034] In this embodiment of the present invention, the first row seat 7 and the second row seat 11 are each provided with a first step portion 16 on the side facing the mold cavity 5, and a first step groove 17 adapted to the first step portion 16 is provided on the side of the lower mold core 4, and the first step portion 16 and the first step groove 17 are mated and cooperated.
[0035] Through the cooperation of the first step portion 16 and the first step groove 17, the first row seat 7 and the second row seat 11 are effectively constrained during the sliding process, which greatly improves the motion stability. During injection molding, the huge pressure generated by the plastic melt entering the mold cavity 5 can easily cause the first row assembly and the second row assembly to be subjected to lateral forces and cause displacement deviation. This step-fitting structure can effectively resist these external forces, ensuring that the first row assembly and the second row assembly move accurately along the predetermined path, thereby ensuring the molding accuracy of the product.
[0036] In this embodiment of the utility model, the first row seat 7 and the second row seat 11 are each provided with a second step portion 18 on the side facing the mold cavity 5. The top side of the molding insert 14 is provided with a second step groove 19 adapted to the second step groove 19, and the second step portion 18 and the second step groove 19 are mated and cooperated.
[0037] The cooperation between the second step portion 18 and the second step groove 19 further ensures that the first and second sliding components move accurately along the predetermined path. At the same time, the cooperation between the second step portion 18 and the second step groove 19 increases the contact area and friction between the first and second sliding components and the molded insert 14, thereby establishing a more stable connection between the sliding components and the molded insert 14, ensuring that the first product contouring portion 9 and the second product contouring portion 13 are connected to the through hole 15 of the molded insert 14.
[0038] In this embodiment of the present invention, the first row seat 7 has a first extension end 20 on the side facing the mold cavity 5, and the second row seat 11 has a second extension end 21 on the side facing the mold cavity 5. The first extension end 20 and the second extension end 21 are mated together at the top of the molding insert 14. The second step portion 18 is connected to the lower ends of the first extension end 20 and the second extension end 21 respectively.
[0039] The first extension end 20 of the first row seat 7 and the second extension end 21 of the second row seat 11 are mated at the top of the molded insert 14 to form a connection structure that spans the top of the molded insert 14. This mating method makes the first row seat 7 and the second row seat 11 spatially related to each other, enhancing the overall stability of the row assembly.
[0040] When the first extension end 20 of the first row seat 7 and the second extension end 21 of the second row seat 11 are connected at the top of the molding insert 14, they can simultaneously drive the second step portion 18 connected at the lower end to accurately embed into the second step groove 19 on the side of the top of the molding insert 14, thereby achieving precise positioning and stable connection in the horizontal and vertical directions, which effectively enhances the reliability of the mold structure and improves production efficiency.
[0041] In this embodiment of the present invention, the first row seat 7 is located below its first extension end 20, and the second row seat 11 is located below its second extension end 21, both of which are respectively formed with clearance positions 22 corresponding to the mold cavity 5. The first product contouring part 9 and the second product contouring part 13 respectively connect and cooperate with the through hole 15 through the corresponding clearance positions 22.
[0042] The clearance space 22 is provided below the first extension end 20 of the first row seat 7 and below the second extension end 21 of the second row seat 11. This is to create a reasonable space in the mold structure for the cooperation between the first product contour part 9, the second product contour part 13 and the molding insert 14. In other words, the existence of the clearance space 22 avoids the interference of the first row seat 7 and the second row seat 11 on the movement and docking process of the first product contour part 9 and the second product contour part 13.
[0043] In this embodiment of the present invention, the first insert 8 extends to the outside of the first row seat 7 on the side facing the mold cavity 5 to form the first product contouring part 9.
[0044] The second insert 12 extends to the outside of the second row seat 11 on the side facing the mold cavity 5 to form the second product contour portion 13.
[0045] This design, combined with the design of the clearance space 22, ensures that the first product contouring part 9 and the second product contouring part 13 are not obstructed by space when they are fitted with the molding insert 14, thereby facilitating product molding.
[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A two-row injection mold characterized by, The upper die has an upper die core, and the lower die has a lower die core. The upper die and the lower die are in abutting fit to make the upper die core and the lower die core abut each other to form a die cavity for forming a product. First and second row position assemblies are arranged oppositely between the upper die and the lower die. The first row position assembly includes a first inclined guide column fixed to the upper die and a first row position seat slidable in the lower die. A first insert is embedded in the first row position seat. The first insert is provided with a first product profile part abutting the die cavity on one side of the first insert. The second row position assembly includes a second inclined guide column fixed to the upper die and a second row position seat slidable in the lower die. A second insert is embedded in the second row position seat. The second insert is provided with a second product profile part abutting the die cavity on one side of the second insert. A forming insert corresponding to the die cavity is embedded in the middle of the lower die core. The forming insert is provided with a through hole extending from the left side to the right side of the forming insert. The first and second row position seats are respectively located on the left and right sides of the forming insert, and the first and second product profile parts are respectively in abutting fit with the through hole.
2. The dual cavity injection mold of claim 1, wherein, The first and second row position seats are respectively provided with first step parts on one side of the die cavity. The lower die core is provided with first step grooves adapted to the first step parts on the side of the lower die core. The first step parts are in abutting fit with the first step grooves.
3. A two-part injection mold according to claim 2, wherein The first and second row position seats are respectively provided with second step parts on one side of the die cavity. The forming insert is provided with second step grooves adapted to the second step parts on the top side of the forming insert. The second step parts are in abutting fit with the second step grooves.
4. The dual cavity injection mold of claim 3, wherein, The first and second row position seats are respectively provided with first and second extension ends on one side of the die cavity. The first and second extension ends are in abutting fit at the top end of the forming insert. The second step parts are respectively connected to the lower ends of the first and second extension ends.
5. A two-part injection mold according to claim 4, wherein The first and second row position seats are respectively provided with first and second extension ends on one side of the die cavity. The first and second extension ends are in abutting fit at the top end of the forming insert. The second step parts are respectively connected to the lower ends of the first and second extension ends.
6. A two cavity injection mold according to any one of claims 1-5, wherein, The first and second row position seats are respectively provided with first and second extension ends on one side of the die cavity. The first and second extension ends are in abutting fit at the top end of the forming insert. The second step parts are respectively connected to the lower ends of the first and second extension ends. The first insert extends to the outside of the first row position seat on one side of the die cavity to form the first product profile part. The second insert extends to the outside of the second row position seat on one side of the die cavity to form the second product profile part.