A slide linkage method to achieve mold core and injection mold ejection after product avoidance

Abstract

The present invention relates to the field of mold technology, and in particular to a mold core and an injection mold that realizes product ejection after avoidance in a sliding linkage manner, comprising a main insert, and sliding linkage components are respectively provided on the front and rear sides of the main insert, the sliding linkage components comprising a base, a finished product lower profiling block, a finished product upper profiling block, a sliding block and a shovel base component, the base is fixed to the side of the main insert, the finished product lower profiling block and the sliding block are both slidably connected to the base, one side of the finished product lower profiling block and the finished product upper profiling block are both docked with the side of the main insert, which can greatly reduce the waste formed in the injection runner, so that more finished products can be molded on the basis of the same mold size, or the same or even more finished products can be molded on a relatively small injection molding machine; the consumables and mechanical energy consumption for making finished products are greatly reduced, the coverage area of ​​the cooling system is reduced, and the cost can be lowered, thereby achieving the purpose of energy saving, consumption reduction and cost reduction.

Description

Technical Field

[0001] The present invention relates to the field of mold technology, and in particular to a mold core and an injection mold that realize product ejection after avoiding a position by means of a slide linkage. Background Art

[0002] Injection molds are mainly used for mass production of plastic products with various structures. By cleverly designing the internal mold core, a clever cavity is formed. The plastic material can be injected into the cavity through a glue inlet. The cavity is matched with various inserts so that after molding, the upper and lower mold plates can open the cavity without affecting the product. The mold also has an ejection mechanism that can eject the product to achieve automatic demoulding after mold opening.

[0003] Currently, for products with an I-shaped structure and each surface having an inward or outward concave structure, such as a part of a drag chain link composed of two side plates and a connecting plate connected between the two side plates, the two side plates have an inward or outward convex structure because they need to rotate with the adjacent connection. When this product structure is manufactured by mold injection molding, the outer surfaces of the two side plates are generally formed by a sliding mechanism, while the inner surfaces of the two side plates are generally formed by a slanted top. The design is mainly to achieve demolding of the product after molding;

[0004] However, since two slides are required to mold one product, in terms of mold structure layout, if multiple products are injected at the same time, the overall size of the mold will be larger due to the slide mechanism, the space occupied will increase, and the counterweight will increase, and the mold operating cost will also increase accordingly. The spacing between adjacent cavities of the molded products is increased due to the setting of the slide mechanism. If multiple products are injected at the same time, the waste will be greatly increased, resulting in an increase in consumables for injecting the product, and the cooling system coverage area will increase, which is not compact enough and the cooling cost will increase. This type of mold structure used for such products will not be able to be produced at a lower cost. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] The sliding block is connected to the side of the main insert, and the sliding block is connected to the sliding block, and the sliding block is connected to the sliding block. The sliders are linked together; a linkage push rod is provided on the slider which slides along the sliding direction of the slider for a certain stroke, and the linkage push rod is fixedly connected to the lower profiling block of the finished product; a first side plate cavity is formed between the main insert and the lower profiling block of the finished product and the upper profiling block of the finished product respectively, a second side plate cavity is formed between the slider and the lower profiling block of the finished product and the upper profiling block of the finished product respectively, a connecting plate cavity is formed between the lower profiling block of the finished product and the upper profiling block of the finished product, and the connecting plate cavity is communicated with the first side plate cavity and the second side plate cavity respectively to form a total cavity, and the main insert is provided with a glue inlet channel connected to the total cavity.

[0007] Preferably, the base includes a bottom plate corresponding to the lower end of the finished product's lower profiling block and the sliding block, and the base also includes limit strips corresponding to both sides of the finished product's lower profiling block and the sliding block. Sliding bosses are formed on both sides of the finished product's lower profiling block and the sliding block, and the finished product's lower profiling block and the sliding block are both limited by the sliding bosses and the limit strips.

[0008] Preferably, an ejector pin group is movably connected to the lower end of the base, and the ejector pin group corresponds to the lower part of the first side plate cavity and the second side plate cavity after the mold is opened.

[0009] Preferably, a contoured insert extending into the main cavity is further inlaid on the slide block or the main insert.

[0010] Preferably, a sliding hole is provided inside the sliding slider and passes through both sides thereof, and a limiting groove is provided at one end of the sliding hole. The limiting groove is located on the side of the sliding slider away from the lower profiling block of the finished product. The linkage push rod is slidably connected in the sliding hole, and the end of the linkage push rod is provided with a limiting portion that is slidably limited in the limiting groove.

[0011] Preferably, a convex portion is formed on the lower profiling block of the finished product, and a concave portion is formed on the upper profiling block of the finished product to connect with the convex portion. The lower profiling block of the finished product and the upper profiling block of the finished product are positioned and matched with each other through the convex portion and the concave portion.

[0012] Preferably, a stop bar is further provided on the upper profiling block of the finished product, and the upper profiling block of the finished product is matched with the upper portion of the sliding block through the stop bar.

[0013] Preferably, a plurality of main cavities are formed between the main insert and the slide linkage component, and the plurality of main cavities are evenly arranged laterally.

[0014] Preferably, the shovel base component includes an inclined plate corresponding to the back of the row slider and a shovel base component fixedly installed on both sides of the inclined plate and facing the row slider. The back of the row slider is an inclined surface, and an inclined push groove corresponding to the shovel base component is opened on the back of the row slider, and a reinforcement plate covering a part of the inclined push groove is provided on the back of the row slider. The shovel base component slides in cooperation with the inclined push groove, and a bending portion is formed on the shovel base component that extends between the inclined push groove and the reinforcement plate. The bending portion is limitedly matched with the reinforcement plate so that the longitudinal movement of the shovel base component drives the row slider to move laterally.

[0015] Preferably, both the upper and lower ends of the inclined plate are formed with positioning edges, the shovel base member abuts between the two positioning edges, and the shovel base member further includes an upper mold connecting block, which is fixed to the back of the inclined plate.

[0016] Preferably, a long groove is provided on the base plate, a tension spring is connected to the long groove, a spring connecting column extending into the long groove is provided at the lower end of the sliding block, the end of the tension spring is connected to the spring connecting column, and the sliding block generates a pulling force toward the main insert through the tension spring.

[0017] An injection mold that realizes product ejection after avoidance by a slide linkage method includes the mold core that realizes product ejection after avoidance by a slide linkage method as described above, including an upper mold, a lower mold and a guide column. The upper mold and the lower mold are guided and docked through the guide column. The mold core is arranged between the upper mold and the lower mold, wherein the main insert and the base are fixedly installed at the upper end of the lower mold, the upper profiling block and the shovel base component of the finished product are installed at the lower end of the upper mold, the upper mold is provided with a glue feeding system connected to the glue feeding channel, and the lower mold is dynamically connected to a push plate that drives the ejector group.

[0018] Preferably, a plurality of laterally evenly arranged accommodating portions are provided between the upper die and the lower die, and a plurality of mold cores are sequentially assembled between the upper die and the lower die via the plurality of accommodating portions.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The cam is moved to the left of the cam and is then moved back to the right of the cam, and the cam is moved to the right of the cam, so that the cam can be moved back to the right of the cam, and the cam is moved to the right of the cam.

[0021] The mold core is formed by providing a main insert and two slide linkage components docked on both sides of the main insert, so that the finished product can be molded from both sides of the main insert respectively, and a glue feed channel connected to the main cavity is provided on the main insert. Its ingenious structure improves the overall compactness and can greatly reduce the waste formed by the injection channel, so that more finished products can be molded on the basis of the same mold size, or the same or even more finished products can be molded on a relatively small injection molding machine; it greatly reduces the consumables and mechanical energy consumption of the finished product, reduces the coverage area of ​​the cooling system, and can achieve lower costs, thereby achieving the purpose of energy saving, consumption reduction and cost reduction.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the mold core of the present invention;

[0025] Figure 2 This is a schematic diagram of the front structure of the mold core of the present invention;

[0026] Figure 3 This is a perspective structural diagram of a main insert and a slide linkage component in the mold core of the present invention;

[0027] Figure 4This is a schematic structural diagram of a main insert and a slide linkage component in a mold core of the present invention from another perspective;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure corresponding to the position of the linkage push rod in the mold core closed state of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure corresponding to the position of the linkage push rod during the mold opening process of the mold core of the present invention;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the mold core corresponding to the position of the linkage push rod after the mold is opened;

[0031] Figure 8 This is a schematic structural diagram corresponding to the connection plate cavity in the mold core of the present invention in the mold closing state;

[0032] Figure 9 This is a schematic structural diagram of the sliding block in the mold core of the present invention;

[0033] Figure 10 It is a structural schematic diagram of the mold of the present invention;

[0034] Figure 11 It is a structural schematic diagram of the mold of the present invention in the mold opening state.

[0035] The reference numerals and names in the figures are as follows:

[0036] Mold core 1, upper mold 2, lower mold 3, guide column 4, glue feeding system 5, ejector plate 6, main insert 10, first side plate cavity 11, second side plate cavity 12, connecting plate cavity 13, glue feeding channel 14, ejector pin assembly 15, contour insert 16, slide linkage component 20, base 21, bottom plate 211, limit strip 212, sliding boss 213, tension spring 214, spring connecting column 215, long slot 21 6. Finished product lower profiling block 22, raised portion 221, finished product upper profiling block 23, recessed portion 231, retaining bar 232, slide block 24, sliding hole 241, limiting groove 242, oblique push groove 243, reinforcing plate 244, shovel base component 25, inclined plate 251, shovel base component 252, bent portion 253, positioning edge 254, upper mold connecting block 255, linkage push rod 30, and limiting portion 31. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0038] See also Figure 1-11 In the embodiment of the present invention, a slide linkage method is used to realize the mold core ejected after the product is avoided, including a main insert 10, and slide linkage components 20 are respectively provided on the front and rear sides of the main insert 10. The slide linkage components 20 include a base 21, a finished product lower profiling block 22, a finished product upper profiling block 23, a slide slider 24 and a shovel base component 25. The base 21 is fixed to the side of the main insert 10, and the finished product lower profiling block 22 and the slide slider 24 are both slidably connected to the base 21. One side of the finished product lower profiling block 22 and the finished product upper profiling block 23 are both docked with the side of the main insert 10, and the finished product upper profiling block 23 is docked with the finished product lower profiling block 22. The slide slider 24 is docked with the other side of the finished product lower profiling block 22 and the finished product upper profiling block 23. Part 25 cooperates with the row slider 24; the row slider 24 is provided with a linkage push rod 30 which slides along the sliding direction of the row slider 24 for a certain stroke, and the linkage push rod 30 is fixedly connected to the lower profiling block 22 of the finished product; a first side plate cavity 11 is formed between the main insert 10 and the lower profiling block 22 of the finished product and the upper profiling block 23 of the finished product respectively, a second side plate cavity 12 is formed between the row slider 24 and the lower profiling block 22 of the finished product and the upper profiling block 23 of the finished product respectively, a connecting plate cavity 13 is formed between the lower profiling block 22 of the finished product and the upper profiling block 23 of the finished product, and the connecting plate cavity 13 is communicated with the first side plate cavity 11 and the second side plate cavity 12 respectively to form a total cavity, and the main insert 10 is provided with a glue inlet channel 14 connected to the total cavity.

[0039] In the above technical solution, the sliding linkage component 20 is linked with the sliding slider 24 by adopting the linkage between the lower profiling block 22 of the finished product, that is, the linkage push rod 30 is slidably connected to the sliding slider 24, and the linkage push rod 30 is fixedly connected to the lower profiling block 22 of the finished product, so that during the mold opening process, the sliding slider 24 is driven by the shovel base component 25 to open the second side plate cavity 12. After the linkage push rod 30 slides the stroke, it will be driven by the sliding slider 24 to link the lower profiling block 22 of the finished product to move. With this arrangement, the first side panel cavity 11 and the second side panel cavity 12 can be opened in sequence in a linked manner under the drive of the mold opening power by only one slide block 24, so that the finished side panel with a concave-convex structure formed by the first side panel cavity 11 and the second side panel cavity 12 can be successfully demolded; and by providing the docking cooperation between the finished product upper profiling block 23 and the finished product lower profiling block 22, the connecting plate cavity 13 can be opened during the mold opening process, so that the finished product similar to the "I" shape can be smoothly demolded;

[0040] The mold core 1 is formed by providing a main insert 10 and two slide linkage components 20 docked on both sides of the main insert 10, so that finished products can be molded from both sides of the main insert 10 respectively, and a glue feed channel 14 connected to the main cavity is provided on the main insert 10. Its ingenious structure improves the overall compactness and can greatly reduce the waste formed by the injection channel, so that more finished products can be molded on the basis of the same mold size and the consumables for making the finished products can be greatly reduced.

[0041] See also Figure 1-4 The base 21 includes a bottom plate 211 corresponding to the lower end of the finished product's lower profiling block 22 and the row slider 24. The base 21 also includes a limiting strip 212 corresponding to the lower profiling block 22 and the row slider 24 of the finished product. Both sides of the lower profiling block 22 and the row slider 24 of the finished product are formed with a sliding boss 213. The lower profiling block 22 and the row slider 24 of the finished product are limited by the sliding boss 213 and the limiting strip 212. Through the structural cooperation of the bottom plate 211 and the limiting strip 212, and at the lower end of the finished product Sliding bosses 213 are formed on both sides of the profiling block 22 and the sliding block 24, respectively, so that the lower profiling block 22 and the sliding block 24 of the finished product can be restricted on the bottom plate 211, and also restricted between the two limit strips 212, thereby achieving the purpose of guided sliding on the bottom plate 211. A linkage push rod 30 is provided to pull the lower profiling block 22 of the finished product after the sliding block 24 moves a certain distance, so as to achieve the operation of opening the first side panel cavity 11 and the second side panel cavity 12 in turn.

[0042] See also Figure 1-9 After the mold is opened, the finished product is retained on the lower profiling block 22 of the finished product. In order to enable the finished product to be automatically demolded, an ejection mechanism needs to be set, that is, an ejector group 15 is movably connected to the lower end of the base 21, and the ejector group 15 corresponds to the lower part of the first side plate cavity 11 and the second side plate cavity 12 after the mold is opened; that is, after the mold is opened, the finished product will first be driven to move horizontally to the position corresponding to the ejector group 15, and then the finished product will be ejected from the lower profiling block 22 of the finished product by the ejector group 15; the sliding block 24 or the main insert 10 is also inlaid with a profiling insert 16 extending into the main cavity; the local structure of the finished product can be fine-tuned by replacing the structure of the profiling insert 16.

[0043] See also Figure 5-7 A sliding hole 241 is provided inside the row slider 24, and a limiting groove 242 is provided at one end of the sliding hole 241. The limiting groove 242 is located on the side of the row slider 24 away from the lower profiling block 22 of the finished product. The linkage push rod 30 is slidably connected to the sliding hole 241. The end of the linkage push rod 30 is provided with a limiting portion 31 that is slidably limited in the limiting groove 242, so that the row slider 24 first slides to the limiting portion 31 and then the linkage push rod 30 is used to pull the lower profiling block 22 of the finished product.

[0044] See also Figure 1-2 The lower profiling block 22 of the finished product is formed with a protrusion 221, and the upper profiling block 23 of the finished product is formed with a recessed portion 231 that docks with the protrusion 221. The lower profiling block 22 of the finished product and the upper profiling block 23 of the finished product are positioned and matched by the protrusion 221 and the recessed portion 231, so that the upper profiling block 23 of the finished product and the lower profiling block 22 of the finished product can achieve precise self-coupling matching; the upper profiling block 23 of the finished product is also provided with a stop bar 232, and the upper profiling block 23 of the finished product is resisted and matched with the upper part of the slide block 24 through the stop bar 232, making the overall structure more compact; a plurality of main cavities are formed between the main insert 10 and the slide linkage component 20, and the plurality of main cavities are evenly arranged laterally, that is, two rows of main cavities can be set on one mold core 1, so as to achieve the purpose of forming multiple finished products at the same time with one mold core 1.

[0045] See also Figure 1-9 The shovel base component 25 includes an inclined plate 251 corresponding to the back of the slider 24 and a shovel base component 252 fixedly installed on both sides of the inclined plate 251 and facing the slider 24. The back of the slider 24 is an inclined surface. An inclined push groove 243 corresponding to the shovel base component 252 is opened on the back of the slider 24, and a reinforcing plate 244 is provided on the back of the slider 24 to cover a part of the inclined push groove 243. The shovel base component 252 slides with the inclined push groove 243, and the shovel base component 252 is in sliding cooperation with the inclined push groove 243. A bent portion 253 is formed on 52 and extends between the oblique push groove 243 and the reinforcing plate 244. The bent portion 253 is limited and cooperates with the reinforcing plate 244 so that the longitudinal movement of the shovel base 252 drives the sliding block 24 to move horizontally; positioning edges 254 are formed on the upper and lower ends of the inclined plate 251, and the shovel base 252 abuts between the two positioning edges 254. The shovel base 252 also includes an upper mold connecting block 255, which is fixed to the back of the inclined plate 251.

[0046] See also Figure 3 and Figure 9 Since when the lower profiling block 22 of the finished product is pulled by the sliding block 24, the sliding block 24 may pull the lower profiling block 22 of the finished product together with the finished product, a long groove 216 is opened on the bottom plate 211, and a tension spring 214 is connected to the long groove 216. A spring connecting column 215 extending into the long groove 216 is provided at the lower end of the sliding block 24, and the end of the tension spring 214 is connected to the spring connecting column 215. The sliding block 24 generates a pulling force toward the main insert 10 through the tension spring 214.

[0047] See also Figure 10-11The cam 24 is provided with a plurality of accommodating parts 11 and 12, and the cam 24 is provided with a plurality of accommodating parts 13 and 14. The cam 24 is provided with a plurality of accommodating parts 11 and 12.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A slide linkage method realizes the ejection of the mold core after the product avoids the position, characterized in that: The shovel base component is linked to the slide block and the slide block, and the slide block is connected to the slide block and the slide block. The block is provided with a linkage push rod which slides along the sliding direction of the slider for a certain stroke, and the linkage push rod is fixedly connected to the lower profiling block of the finished product; a first side plate cavity is formed between the main insert and the lower profiling block of the finished product and the upper profiling block of the finished product respectively, a second side plate cavity is formed between the slider and the lower profiling block of the finished product and the upper profiling block of the finished product respectively, a connecting plate cavity is formed between the lower profiling block of the finished product and the upper profiling block of the finished product, and the connecting plate cavity is communicated with the first side plate cavity and the second side plate cavity respectively to form a total cavity, and the main insert is provided with a glue inlet channel connected to the total cavity.

2. According to claim 1, a slide linkage method is used to realize the ejection of the mold core after the product is avoided, characterized in that: The base includes a bottom plate corresponding to the lower end of the finished product's lower profiling block and the slider, and the base also includes limit strips corresponding to both sides of the finished product's lower profiling block and the slider. Sliding bosses are formed on both sides of the finished product's lower profiling block and the slider, and the finished product's lower profiling block and the slider are both limited by the sliding bosses and the limit strips.

3. The mold core that realizes ejection of the product after avoiding the position by a slide linkage method according to claim 1 is characterized in that: An ejector pin assembly is movably connected to the lower end of the base, and the ejector pin assembly corresponds to the lower part of the first side plate cavity and the second side plate cavity after the mold is opened.

4. The mold core that realizes ejection of the product after avoiding the position by a slide linkage method according to claim 1 is characterized in that: The sliding block or the main insert is further inlaid with a contoured insert extending into the main cavity.

5. The mold core that realizes ejection of the product after avoiding the position by a slide linkage method according to claim 1 is characterized in that: A sliding hole is provided inside the sliding slider and passes through both sides of the sliding hole, and a limiting groove is provided at one end of the sliding hole. The limiting groove is located on the side of the sliding slider away from the lower profiling block of the finished product. The linkage push rod is slidably connected in the sliding hole, and the end of the linkage push rod is provided with a limiting portion that is limited in sliding within the limiting groove.

6. The mold core that realizes ejection of the product after avoiding the position by a slide linkage method according to claim 1 is characterized in that: The lower profiling block of the finished product is formed with a raised portion, and the upper profiling block of the finished product is formed with a recessed portion that docks with the raised portion. The lower profiling block of the finished product and the upper profiling block of the finished product are positioned and matched with each other through the raised portion and the recessed portion.

7. The mold core that realizes ejection of the product after avoiding the position by a slide linkage method according to claim 6 is characterized in that: The upper profiling block of the finished product is also provided with a stop bar, and the upper profiling block of the finished product is matched with the upper part of the slide block through the stop bar.

8. The mold core that realizes ejection of product after avoiding position by a slide linkage method according to claim 1 is characterized in that: A plurality of main cavities are formed between the main insert and the slide linkage component, and the plurality of main cavities are evenly arranged laterally.

9. The mold core that realizes ejection of product after avoiding position by a slide linkage method according to claim 1 is characterized in that: The shovel base component includes an inclined plate corresponding to the back of the row slider and a shovel base component fixedly installed on both sides of the inclined plate and facing the row slider. The back of the row slider is an inclined surface. An inclined push groove corresponding to the shovel base component is opened on the back of the row slider, and a reinforcement plate covering a part of the inclined push groove is provided on the back of the row slider. The shovel base component slides in cooperation with the inclined push groove, and a bent portion is formed on the shovel base component that extends between the inclined push groove and the reinforcement plate. The bent portion is limitedly matched with the reinforcement plate so that the longitudinal movement of the shovel base component drives the row slider to move laterally.

10. The mold core that realizes ejection of product after avoiding position by a slide linkage method according to claim 9 is characterized in that: The upper and lower ends of the inclined plate are both formed with positioning edges, and the shovel base member abuts between the two positioning edges. The shovel base member also includes an upper mold connecting block, which is fixed to the back of the inclined plate.

11. The mold core that realizes ejection of product after avoiding position by a slide linkage method according to claim 2 is characterized in that: A long groove is provided on the bottom plate, and a tension spring is connected to the long groove. A spring connecting column extending into the long groove is provided at the lower end of the sliding block. The end of the tension spring is connected to the spring connecting column. The sliding block generates a pulling force toward the main insert through the tension spring.

12. An injection mold that realizes ejection of products after avoiding the position by means of a slide linkage method, comprising a mold core that realizes ejection of products after avoiding the position by means of a slide linkage method according to any one of claims 1 to 11, characterized in that: It includes an upper mold, a lower mold and a guide column. The upper mold and the lower mold are guided and docked through the guide column. The mold core is arranged between the upper mold and the lower mold. The main insert and the base are fixedly installed at the upper end of the lower mold. The upper profiling block of the finished product and the shovel base component are installed at the lower end of the upper mold. The upper mold is provided with a glue feeding system connected to the glue feeding channel. The lower mold is powered by a push plate that drives the ejector group.

13. The injection mold according to claim 12, wherein the slide linkage method is used to realize product ejection after avoiding the position, characterized in that: A plurality of accommodating parts evenly arranged laterally are provided between the upper die and the lower die, and a plurality of mold cores are sequentially assembled between the upper die and the lower die through the plurality of accommodating parts.

Images