A molding die for a plastic foot with a linked retractable slider
By combining the linkage of the inward-retracting slider and the segmented cooling channel, the problems of slider offset and uneven cooling in the plastic foot molding mold are solved, achieving high-precision molding and stability, and reducing mold maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI YIBO PRECISION MOULD CO LTD
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-03
AI Technical Summary
Existing plastic foot molding dies are prone to slider displacement during injection molding, leading to misalignment of the snap-fit position, uneven cooling resulting in uneven wall thickness, and reduced mold life.
The system employs a linked inward-retracting slider structure, combined with segmented cooling channels and inclined guide rail drive, to ensure precise slider movement and achieve uniform cooling through segmented cooling channels, thus avoiding slider offset and uneven cooling.
It improves the assembly stability and dimensional accuracy of plastic feet, reduces mold maintenance costs, and enhances molding consistency and surface quality.
Smart Images
Figure CN224446702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a plastic foot molding mold with a linked retractable slider. Background Technology
[0002] Plastic feet, as important supporting components of mixer products, are usually installed at the bottom of the mixer base to maintain the horizontal stability of the whole machine and reduce vibration and noise during operation. In order to facilitate reliable fixation with the mixer base or shell, the plastic feet often need to be designed with a snap-fit structure inside or on the side wall to achieve quick snap-fit and limit assembly, ensuring that the mixer is not easy to loosen in high-frequency vibration environment.
[0003] In existing technologies, plastic feet are mostly molded in one piece using injection molds. For plastic feet with internal snap-fit structures, the snap-fit positions usually form an undercut after molding. In order to demold smoothly, a slider or inclined ejector structure needs to be set in the mold. The common practice is to set molding sliders on both sides of the mold core and set an inclined ejector or side core pulling mechanism separately at the corresponding position of the snap-fit.
[0004] However, the traditional structure has the following shortcomings:
[0005] First, during the injection molding filling stage, the molten plastic is injected into the cavity at a high pressure, which will generate a large lateral impact force on the inner slider. Since the inner slider needs to reserve space for the inner translation of the core pulling, its guide support structure is often difficult to achieve full-circumference tight constraint. This causes the slider to easily shift slightly under the action of injection pressure, which in turn causes the buckle molding position deviation, uneven wall thickness, or even buckle size deviation, directly affecting the assembly stability of the plastic foot and the mixer base.
[0006] Secondly, although the inclined guide post driving method has a simple structure, during multiple mold opening and closing processes, the fit clearance between the inclined guide post and the slider hole will gradually increase due to wear, which will further aggravate the tendency of the inner slider to deviate during injection. At the same time, the reset accuracy will decrease, and the slider may not be reset properly or may get stuck, affecting the mold's service life and molding consistency.
[0007] In addition, during the molding process of plastic feet, the main body of the mold core (i.e. the main support wall of the plastic foot) and the snap-fit part have different cooling requirements. Conventional molds often only have an integral cooling water channel, which leads to insufficient cooling of the main body of the molding section, prolonged cycle, or the snap-fit molding section being too cold and thus risking brittleness. Utility Model Content
[0008] To address the technical problems existing in the background art, this utility model proposes a plastic foot molding mold with a linked inward sliding block.
[0009] The technical solution adopted by this utility model to solve its technical problem is as follows:
[0010] A plastic foot molding mold with a linked retractable slider includes an upper molding mold and a lower molding mold. The upper molding mold is provided with a molding injection head, which is provided with a plurality of injection holes. The lower molding mold is provided with a mold core and a molding slider that is slidably disposed on both sides of the mold core. The molding injection head abuts against the molding slider and the mold core so that a molding cavity is formed between the molding slider and the mold core.
[0011] The mold core is slidably embedded with a buckle forming block for forming a buckle, and the mold core is inserted with a demolding rod that can slide up and down. The demolding rod and the buckle forming block are slidably connected through an inclined guide rail structure. When the demolding rod descends, the buckle forming block slides horizontally along the inclined guide rail structure away from the forming cavity.
[0012] The mold core is provided with a first cooling channel. The mold core includes a main body forming area and a snap-fit forming area. The snap-fit forming area is formed on the snap-fit forming block, and the first cooling channel is placed in the main body forming area.
[0013] The main body forming area includes, from top to bottom, a first forming section located above the snap-fit forming block and a second forming section located on the side of the snap-fit forming block. The first cooling channel includes a first cooling section disposed within the first forming section and a second cooling section disposed within the second forming section.
[0014] Preferably, the lower molding die is provided with a drive rod, and the drive rod is inclined. The molding slider is provided with a first drive groove for the drive rod to be inserted. With the above improvements, when the mold is opened and closed, the drive rod cooperates with the first drive groove to smoothly convert the vertical motion into the lateral sliding of the molding slider, thus ensuring the accuracy and stability of the reciprocating motion of the molding slider.
[0015] Preferably, the inclined guide rail structure includes driving protrusions on both sides of the demolding rod, and a second driving groove matching the driving protrusions is formed on the snap-fit forming block. The driving protrusions are placed in the second driving grooves and are inclined. Through the above improvements, when the demolding rod rises and falls, the driving protrusions cooperate with the second driving grooves to smoothly convert the vertical movement into the horizontal sliding of the snap-fit forming block, realizing linkage inward retraction. Compared with the traditional spring or inclined top structure, this inclined surface driving method has precise transmission, reliable action, no risk of spring fatigue failure, and the snap-fit forming block is accurately reset when the demolding rod rises, ensuring the snap-fit forming accuracy. At the same time, the structure is compact and occupies little space.
[0016] Preferably, the top of the demolding rod is provided with a positioning protrusion, and the mold core is formed with a positioning groove for the positioning protrusion to be inserted. Through the above improvements, the positioning protrusion always slides in the positioning groove during the lifting and lowering process of the demolding rod, playing a guiding and limiting role, effectively preventing the demolding rod from circumferentially deflecting or radially shaking, and ensuring that the driving protrusions on both sides of the demolding rod and the driving groove of the snap-fit molding block always maintain precise alignment.
[0017] Preferably, the first cooling section is spirally arranged, and the outer diameter of the spiral of the first cooling section gradually increases along the direction of glue injection. The second cooling section is serpentine. Through the above improvements, the first cooling section adopts a spiral structure with a gradually expanding outer diameter, which gradually increases along the direction of glue injection to match the contour change of the outer diameter of the molding area of the mold core body. This ensures that the distance between the spiral cooling channel and the surface of the molding cavity remains uniform, thereby achieving balanced cooling of the upper area of the plastic foot and avoiding local overheating or overcooling caused by differences in cooling distance. The serpentine arrangement of the second cooling section increases the flow path and residence time of the cooling medium in the second molding section, enhancing the heat exchange effect on the side wall area of the main body. The two work together to make the main molding area cool more fully and evenly, effectively reducing defects such as shrinkage marks and warping, improving the dimensional accuracy and surface quality of the plastic foot, and solving the problem of overcooling in the snap-fit area.
[0018] Preferably, a cooling block is provided on the top of the molding injection head, and a second cooling channel is provided inside the molding upper mold. The second cooling channel is connected to the cooling block. Through the above improvements, the second cooling channel introduces the cooling medium into the cooling block, so that the molding injection head area is effectively cooled. This avoids the problem of material aging, deformation or blockage of injection holes caused by the injection head being in contact with high-temperature molten plastic for a long time. In addition, the setting of the cooling block can reduce the temperature difference between the injection head and the molding cavity, so that the molten plastic maintains a suitable temperature flow during the injection process, which helps to reduce defects such as flow marks and cold material.
[0019] Preferably, there are three injection holes, and the injection holes are arranged at intervals along the circumference. Through the above improvements, the three-point circumferential injection realizes multi-directional synchronous injection, and the molten plastic is uniformly filled along the circumference of the molding cavity, effectively avoiding defects such as flow marks, weld lines and incomplete filling caused by single-point injection.
[0020] Preferably, the lower mold is provided with a guide protrusion, and the molding slider is provided with a guide groove for the guide protrusion to be inserted. Through the above improvements, the cooperation between the guide protrusion and the guide groove provides precise guidance and limit for the lateral sliding of the molding slider, effectively preventing the slider from swaying or jamming during reciprocating motion, and ensuring the fitting accuracy between the slider and the mold core.
[0021] Preferably, the molding slider includes a first slider and a second slider, and the first slider has a mating protrusion, while the second slider has a mating groove for the mating protrusion to be inserted. With the above improvements, when the mold is closed, the mating protrusion is inserted into the mating groove, so that the first slider and the second slider form a mutually locking mating structure at the parting surface, which effectively prevents the two sliders from being misaligned or opening under the action of injection pressure, and ensures the sealing and shape accuracy of the molding cavity.
[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0023] By slidingly embedding a snap-fit molding block within the mold core and slidably connecting the demolding rod to the snap-fit molding block, the demolding rod descends, driving the snap-fit molding block to slide horizontally away from the molding cavity. Unlike traditional inclined guide post structures, there is no need to leave a large translational clearance on the side. Even under high injection pressure, the snap-fit molding block will not experience slight displacement due to lateral impact, thus ensuring the positional accuracy and dimensional consistency of the snap-fit molding groove. This significantly improves the assembly stability between the plastic foot and the mixer base, achieving synchronized inward retraction of the snap-fit molding block and the demolding action. Furthermore, it eliminates the need for springs or inclined guide posts, avoiding fatigue failure or jamming problems. The structure is compact and operates stably. A first cooling channel is also provided within the main molding area of the mold core, extending from top to bottom. The device includes a first forming section located above the snap-fit forming block and a second forming section located on the side of the snap-fit forming block. The first cooling channel includes a first cooling section located within the first forming section and a second cooling section located within the second forming section. The first cooling channel provides segmented cooling for different parts of the main forming area. The first cooling section cools the upper part of the plastic foot above the snap-fit forming block, and the second cooling section cools the main side wall area on the side of the snap-fit forming block. This achieves uniform heat dissipation in the main forming area, avoiding defects such as shrinkage marks and warping caused by uneven cooling, improving the dimensional stability and surface quality of the plastic foot. Furthermore, the snap-fit forming area is independently set on the snap-fit forming block, facilitating individual replacement and maintenance, and reducing mold repair costs. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0026] Figure 3 This is a schematic diagram of the structure of the molding injection head and the molding lower mold of this utility model;
[0027] Figure 4 This is a cross-sectional view of the mold core of this utility model;
[0028] Figure 5This is a schematic diagram of the structure of the upper molding die and the lower molding die of this utility model.
[0029] Figure 6 This is a schematic diagram of the structure of the snap-fit molding block and the demolding rod of this utility model;
[0030] Figure 7 This is a schematic diagram of the overall structure of the mold core of this utility model;
[0031] Figure 8 This is an isometric view of the engagement between the snap-fit molding block and the demolding rod of this utility model;
[0032] Figure 9 This is a schematic diagram of the lower molding die of this utility model;
[0033] Figure 10 This is a schematic diagram of the structure of the first cooling channel of this utility model;
[0034] Figure 11 This is a schematic diagram of the upper molding die of this utility model;
[0035] In the diagram: 1. Upper molding mold; 2. Lower molding mold; 101. Molding injection head; 102. Injection hole; 103. Mold core; 104. Molding slider; 105. Molding cavity; 106. Inclined guide rail structure; 201. Snap-fit molding block; 202. Snap-fit molding groove; 203. Demolding rod; 204. First cooling channel; 205. Main molding area; 206. Snap-fit molding area; 301. Drive tie rod; 302. First drive slide groove 303, Drive protrusion; 304, Second drive groove; 305, Positioning protrusion; 306, Positioning groove; 401, First forming section; 402, Second forming section; 403, First cooling section; 404, Second cooling section; 501, Cooling block; 502, Second cooling channel; 503, Guide protrusion; 504, Guide groove; 601, First slider; 602, Second slider; 603, Docking protrusion; 604, Docking groove. Detailed Implementation
[0036] 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.
[0037] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.
[0038] like Figures 1 to 6 As shown, a plastic foot molding mold with a linked retractable slider includes an upper molding mold 1 and a lower molding mold 2. The upper molding mold 1 is provided with a molding injection head 101, which is provided with a plurality of injection holes 102. The lower molding mold 2 is provided with a mold core 103 and molding sliders 104 slidably disposed on both sides of the mold core 103. The molding injection head 101 abuts against the molding sliders 104 and the mold core 103 so that a molding cavity 105 is formed between the molding sliders 104 and the mold core 103.
[0039] Specifically, a snap-fit forming block 201 for forming snaps is slidably embedded on the mold core 103. The snap-fit forming block 201 forms a snap-fit forming groove 202. A demolding rod 203 that can slide up and down is inserted into the mold core 103. The demolding rod 203 and the snap-fit forming block 201 are slidably connected through the inclined guide rail structure 106. When the demolding rod 203 descends, the snap-fit forming block 201 slides horizontally away from the forming cavity 105.
[0040] Furthermore, a first cooling channel 204 is provided inside the mold core 103. The mold core 103 includes a main body forming area 205 and a snap-fit forming area 206. The snap-fit forming area 206 is formed on the snap-fit forming block 201, and the first cooling channel 204 is placed inside the main body forming area 205.
[0041] In the entire injection molding process, firstly, the upper molding mold 1 and the lower molding mold 2 are closed. The molding injection head 101 on the upper molding mold 1 abuts against the molding slider 104 and the mold core 103. The molding slider 104 closes on both sides of the mold core 103, so that a closed molding cavity 105 is formed between the molding slider 104 and the mold core 103.
[0042] Subsequently, the injection molding machine injects molten plastic through the molding injection head 101. The plastic enters the molding cavity 105 evenly from the injection holes 102 arranged circumferentially on the molding injection head 101. The molten plastic flows in the molding cavity 105, filling the cavity space defined by the mold core 103, the molding slider 104, and the snap-fit molding block 201, and at the same time enters the snap-fit molding groove 202 to form the plastic mold body and the snap-fit structure.
[0043] After the plastic foot has completely solidified, the mold is opened, the upper mold 1 and the lower mold 2 are separated, the molding injection head 101 exits the molding slider 104, the drive rod 301 moves under the action of the mold opening force, and drives the molding slider 104 to slide laterally away from the mold core 103.
[0044] Next, the demolding rod 203 moves downward, and the positioning protrusion 305 at the top of the demolding rod 203 slides downward in the mold core 103. The driving protrusions 303 on both sides of the demolding rod 203 slide along the second driving groove 304 on the snap-fit molding block 201, converting the vertical downward movement of the demolding rod 203 into the horizontal sliding of the snap-fit molding block 201 away from the molding cavity 105, so that the snap-fit molding block 201 retracts inward from the snap-fit position of the plastic foot, realizing the snap-fit release of the snap-fit molding area 206.
[0045] Finally, the molded plastic foot is ejected from the mold core 103 by an external ejection device, completing the demolding process.
[0046] By slidingly embedding the snap-fit molding block 201 within the mold core 103 and slidingly connecting the demolding rod 203 to the snap-fit molding block 201, the snap-fit molding block 201 is driven to slide horizontally away from the molding cavity 105 when the demolding rod 203 descends. Unlike traditional inclined guide post structures, there is no need to leave a large translation gap on the side. Even under high injection pressure, the snap-fit molding block 201 will not shift slightly due to lateral impact, thus ensuring the positional accuracy and dimensional consistency of the snap-fit molding groove 202. This significantly improves the assembly stability between the plastic foot and the mixer base. Furthermore, it eliminates the need for springs or inclined guide posts, avoiding fatigue failure or jamming problems. The structure is compact and the operation is stable.
[0047] The snap-fit forming area 206 is independently set on the snap-fit forming block 201, which facilitates individual replacement and maintenance and reduces mold repair costs.
[0048] Furthermore, the main molding area 205 includes, from top to bottom, a first molding section 401 located above the snap-fit molding block 201 and a second molding section 402 located on the side of the snap-fit molding block 201. The first cooling channel 204 includes a first cooling section 403 disposed within the first molding section 401 and a second cooling section 404 disposed within the second molding section 402. The first cooling channel 204 performs segmented cooling for different parts of the main molding area 205. The first cooling section 403 cools the upper part of the plastic foot above the snap-fit molding block 201, and the second cooling section 404 cools the main body sidewall area on the side of the snap-fit molding block 201. This achieves uniform heat dissipation in the main molding area 205, avoids defects such as shrinkage marks and warping caused by uneven cooling, and improves the dimensional stability and surface quality of the plastic foot.
[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, as a further explanation of the embodiment of the molding slider 104, a drive rod 301 is provided on the lower molding die 2, and the drive rod 301 is inclined. The molding slider 104 is provided with a first drive groove 302 for the drive rod 301 to be inserted. When the mold is opened and closed, the drive rod 301 cooperates with the first drive groove 302 to smoothly convert the vertical motion into the lateral sliding of the molding slider 104, thus ensuring the stability of the reciprocating motion of the molding slider 104.
[0050] Specifically, the lower mold 2 is provided with a guide protrusion 503, and the molding slider 104 is provided with a guide groove 504 for the guide protrusion 503 to be inserted. The cooperation between the guide protrusion 503 and the guide groove 504 provides precise guidance and limit for the lateral sliding of the molding slider 104, effectively preventing the slider from swaying or jamming during reciprocating motion, and ensuring the fitting accuracy between the molding slider 104 and the mold core 103.
[0051] Furthermore, the molding slider 104 includes a first slider 601 and a second slider 602. The first slider 601 has a mating protrusion 603, and the second slider 602 has a mating groove 604 for the mating protrusion 603 to be inserted into. When the mold is closed, the mating protrusion 603 is inserted into the mating groove 604, so that the first slider 601 and the second slider 602 form a mutually locking mating structure at the parting surface, which effectively prevents the two sliders from being misaligned or opening under the action of injection pressure, and ensures the sealing and shape accuracy of the molding cavity 105.
[0052] like Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, a further explanation of the cooperation between the demolding rod 203 and the snap-fit forming block 201 is provided. The inclined guide rail structure 106 includes driving protrusions 303 on both sides of the demolding rod 203, and a second driving groove 304 matching the driving protrusions 303 is formed on the snap-fit forming block 201. The driving protrusions 303 are placed in the second driving groove 304 and are inclined. When the demolding rod 203 rises and falls, the driving protrusions 303 cooperate with the second driving groove 304 to smoothly convert the vertical movement into the horizontal sliding of the snap-fit forming block 201, realizing linkage inward retraction. Compared with the traditional spring or inclined top structure, this inclined surface driving method has precise transmission, reliable action, no risk of spring fatigue failure, and when the demolding rod 203 rises, it drives the snap-fit forming block 201 to accurately reset, ensuring the snap-fit forming accuracy. At the same time, the structure is compact and occupies little space.
[0053] The demolding rod 203 has a positioning protrusion 305 at its top, and the mold core 103 has a positioning groove 306 for the positioning protrusion 305 to be inserted into. During the lifting and lowering process of the demolding rod 203, the positioning protrusion 305 always slides in the positioning groove 306, which plays a guiding and limiting role, effectively preventing the demolding rod 203 from circumferentially deflecting or radially shaking, and ensuring that the driving protrusions 303 on both sides of the demolding rod 203 and the driving groove of the snap-fit molding block 201 always maintain precise alignment.
[0054] like Figure 4 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, as a further explanation of the embodiment of the first cooling channel 204, the main body molding area 205 includes, from top to bottom, a first molding section 401 located above the snap-fit molding block 201 and a second molding section 402 on the side of the snap-fit molding block 201. The first cooling channel 204 includes a first cooling section 403 disposed in the first molding section 401 and a second cooling section 404 disposed in the second molding section 402.
[0055] The first cooling section 403 is spirally arranged, and the outer diameter of the spiral of the first cooling section 403 gradually increases along the direction of glue injection. The second cooling section 404 is serpentine and matches the inner surface contour of the plastic foot.
[0056] During the injection molding process, the first cooling channel 204 starts to work. The cooling medium is input from the bottom of the lower mold 2 and first enters the second cooling section 404 on one side of the mold core 103. The second cooling section 404 is arranged in a meandering shape and is located in the second molding section 402 (i.e. the side of the snap-fit molding block 201) of the main molding area 205. The cooling medium flows meanderingly in it and performs preliminary heat exchange and cooling on the side wall area on one side of the plastic foot.
[0057] Subsequently, the cooling medium flows upward and enters the first cooling section 403. The first cooling section 403 is spirally arranged and is located in the first molding section 401 of the main molding area 205 (i.e., the area above the snap-fit molding block 201). Its spiral outer diameter gradually increases along the glue injection direction to match the contour change of the outer diameter of the mold core 103 and keep the distance between the spiral channel and the surface of the molding cavity 105 uniform. The cooling medium flows upward along the spiral channel to gradually and uniformly cool the upper main body area of the plastic foot, effectively removing the heat accumulated in the thicker parts.
[0058] After the cooling medium completes the cooling of the first cooling section 403, it flows downward into the second cooling section 404 on the other side. The second cooling section 404 is also arranged in a meandering shape to cool the side wall area on the other side of the plastic foot.
[0059] At this point, the cooling medium has completed the full cooling of the first molding section 401 and the second molding sections 402 on both sides in the main molding area 205, and finally outputs from the bottom of the molding lower mold 2, forming a complete cooling cycle.
[0060] The first cooling channel 204 performs segmented cooling on different parts of the main body molding area 205. The first cooling section 403 cools the upper part of the plastic foot above the snap-fit molding block 201, and the second cooling section 404 cools the main body side wall area on the side of the snap-fit molding block 201. This achieves uniform heat dissipation in the main body molding area 205, avoids defects such as shrinkage marks and warping caused by uneven cooling, and improves the dimensional stability and surface quality of the plastic foot.
[0061] Preferably, the mold core 103 is integrally formed using metal 3D printing technology. During the printing process, a three-dimensional flow channel structure of the first cooling channel 204 is simultaneously constructed. This method allows the first cooling channel 204 to be designed to conform to the contour of the main forming area 205 of the mold core 103, ensuring that the distance between the spiral first cooling section 403 and the meandering second cooling section 404 and the surface of the forming cavity 105 is uniform. This avoids the processing limitations of traditional drilling processes. The integral 3D printing process eliminates the need for a sealing structure, thus eliminating the risk of cooling water leakage and improving mold reliability and cooling efficiency.
[0062] like Figure 3 , Figure 11 As shown, as a further explanation of the embodiment of the molding injection head 101, a cooling block 501 is provided on the top of the molding injection head 101, and a second cooling channel 502 is provided in the upper molding mold 1. The second cooling channel 502 is connected to the cooling block 501, and the second cooling channel 502 introduces the cooling medium into the cooling block 501, so that the area of the molding injection head 101 is effectively cooled, avoiding the problem of material aging, deformation or blockage of the injection hole 102 due to the injection head being in contact with high temperature molten plastic for a long time. In addition, the setting of the cooling block 501 can reduce the temperature difference between the injection head and the molding cavity 105, so that the molten plastic maintains a suitable temperature flow during the injection process, which is beneficial to reduce defects such as flow marks and cold material.
[0063] There are three injection holes 102, which are arranged at intervals along the circumference. The three-point circumferential injection realizes multi-directional synchronous injection, and the molten plastic is uniformly filled along the circumference of the molding cavity 105, which effectively avoids defects such as flow marks, weld lines and incomplete filling caused by single-point injection.
[0064] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A plastic foot forming mold with a linkage retracting slide, comprising a forming upper mold (1) and a forming lower mold (2), characterized in that, The upper molding die (1) is provided with a molding injection head (101), the molding injection head (101) is provided with a plurality of injection holes (102), the lower molding die (2) is provided with a mold core (103), and molding sliders (104) are slidably disposed on both sides of the mold core (103). The molding injection head (101) abuts against the molding sliders (104) and the mold core (103) so that a molding cavity (105) is formed between the molding sliders (104) and the mold core (103). The mold core (103) is slidably embedded with a snap-fit forming block (201) for forming a snap-fit, and the mold core (103) is inserted with a demolding rod (203) that can slide up and down. The demolding rod (203) and the snap-fit forming block (201) are slidably connected through an inclined guide rail structure (106). When the demolding rod (203) descends, the snap-fit forming block (201) slides horizontally along the inclined guide rail structure (106) away from the forming cavity (105). The mold core (103) is provided with a first cooling channel (204). The mold core (103) includes a main body forming area (205) and a snap-fit forming area (206). The snap-fit forming area (206) is formed on the snap-fit forming block (201), and the first cooling channel (204) is placed in the main body forming area (205). The main molding area (205) includes, from top to bottom, a first molding section (401) located above the snap-fit molding block (201) and a second molding section (402) located on the side of the snap-fit molding block (201). The first cooling channel (204) includes a first cooling section (403) disposed in the first molding section (401) and a second cooling section (404) disposed in the second molding section (402).
2. A plastic foot forming mold with a linkage retracting slide as set forth in claim 1, wherein: The lower molding die (2) is provided with a drive rod (301), and the drive rod (301) is inclined. The molding slider (104) is provided with a first drive groove (302) for the drive rod (301) to be inserted.
3. A plastic foot forming mold with a linkage retracting slide as set forth in claim 1, wherein: The inclined guide rail structure (106) includes driving protrusions (303) on both sides of the demolding rod (203), and the snap-fit forming block (201) forms a second driving groove (304) that matches the driving protrusions (303). The driving protrusions (303) are placed in the second driving groove (304), and the driving protrusions (303) are inclined.
4. The plastic foot forming mold with linkage retracting slide block according to claim 1, characterized in that: The top of the demolding rod (203) is provided with a positioning protrusion (305), and the mold core (103) is provided with a positioning groove (306) for the positioning protrusion (305) to be inserted.
5. The plastic foot forming mold with linkage retracting slide block according to claim 1, characterized in that: The first cooling section (403) is spirally arranged, and the outer diameter of the spiral of the first cooling section (403) gradually increases along the glue feeding direction. The second cooling section (404) is serpentine.
6. A plastic foot forming mold with a linkage retracting slide as defined in claim 1, wherein: The top of the molding injection head (101) is provided with a cooling block (501), and the upper molding mold (1) is provided with a second cooling channel (502), which is connected to the cooling block (501).
7. A plastic foot forming mold with a linkage retracting slide as defined in claim 1, wherein: The number of the glue injection holes (102) is 3, and the glue injection holes (102) are arranged at intervals along the circumference.
8. A plastic foot forming mold with a linkage retracting slide as defined in claim 1, wherein: The lower forming die (2) is provided with a guide protrusion (503), and the forming slider (104) is provided with a guide groove (504) for the guide protrusion (503) to be inserted.
9. The plastic foot forming mold with linkage retracting slide block according to claim 1, characterized in that: The forming slider (104) includes a first slider (601) and a second slider (602), and the first slider (601) has a mating protrusion (603) formed thereon, and the second slider (602) has a mating groove (604) for the mating protrusion (603) to be inserted into.