Sole manufacturing mold
By designing a sole manufacturing mold including a sole mold, a left mold and a right mold, the problem of joints and glue overflow during the injection molding of the sole in the prior art is solved, and the side integrity and aesthetics of the sole after forming are achieved , improves production efficiency.
Patent Information
- Application Number
- CN202423271435.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During the injection molding process, existing sole injection molds cause obvious joints to appear on the lower end or middle of the side of the shoe, and even glue liquid overflows, which require manual scraping, resulting in unsightly shoes.
A sole manufacturing mold is designed including a bottom die, a left die and a right die. The outer edge of the bottom die extends upward with a side wall to form a sole molding cavity and a feed hole is opened on the bottom die. The left mold and the right mold are respectively equipped with left grooves and right grooves that match the side wall of the bottom mold to ensure that the shoe last and the bottom mold are locked and formed a complete sole molding cavity.
Through this mold design, the rear side of the sole is complete and seamless, with a beautiful appearance, and no manual removal of waste edges is required, which improves production efficiency and reduces labor costs.
Smart Images

Figure CN222431451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved utility model of shoe-making equipment, in particular to a shoe sole manufacturing mould. Background Art
[0002] The existing sole injection mold includes a bottom mold, a left mold and a right mold. The left mold and the right mold are closed relative to the bottom mold. The top edge of the bottom mold is at the lower end or middle position of the left mold and the right mold. The shoe last cooperates with the top of the left mold and the right mold to form a sole mold cavity. Glue is injected from the bottom mold into the sole mold cavity to form the sole. When demolding, the left mold and the right mold are separated and the shoe last is evacuated. Because the closing position of the bottom mold and the left and right molds is at the lower end or middle position of the left and right molds, an obvious seam will appear at the lower end or middle position of the side of the shoe, and even glue will overflow, which needs to be scraped off manually, resulting in an unsightly shoe. Summary of the invention
[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide a sole manufacturing mold with more beautiful sole molding.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solution: the shoe sole manufacturing mold is characterized by comprising a bottom mold, a left mold and a right mold.
[0005] The outer edge of the bottom mold is extended upward with a side wall, the side wall encloses a sole forming cavity, and the bottom mold is provided with a feed hole communicating with the sole forming cavity;
[0006] The left mold is provided with a left groove matching the left side of the bottom mold side wall, and the left top edge of the bottom mold side wall is consistent with the top edge of the left groove;
[0007] The right mold is provided with a right groove matching the right side of the bottom mold side wall, and the right top edge of the bottom mold side wall is consistent with the top edge of the right groove.
[0008] The bottom mold of the utility model is extended with side walls to form a sole molding cavity, and the glue enters the sole molding cavity through the feeding hole on the bottom mold. The side of the molded sole is complete without seams and beautiful in appearance, and there is no need to manually remove waste edges, thereby improving production efficiency.
[0009] Preferably, during injection molding, the shoe last extends to the top edge of the bottom mold, the left mold and the right mold are closed, and the bottom edge of the shoe last coincides with the top edge of the left groove, the top edge of the right groove, and the top edge of the side wall of the bottom mold. The left mold and the right mold are closed to lock the shoe last and the bottom mold, and the bottom surface of the shoe last and the bottom mold form a closed sole molding cavity.
[0010] Preferably, the inner surface of the bottom mold side wall is provided with sole side lines.
[0011] Preferably, a left notch is provided above the left groove of the left mold, and a right notch is provided above the right groove of the right mold, the left notch and the right notch are recessed inwardly, and the notch formed by the left notch and the right notch matches the end of the shoe last. The inwardly recessed left notch and the right notch cover the shoe last to increase stability.
[0012] Preferably, the left mold and the right mold move horizontally left and right relative to the bottom mold, so that the horizontal movement has less interference and improves the matching degree between the left mold, the right mold and the bottom mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the utility model when the left mold and the right mold are closed.
[0014] Figure 2 It is a schematic diagram of the utility model when the left mold and the right mold are opened.
[0015] Figure 3 It is a right side view of the left mold and the bottom mold of the utility model when they are matched.
[0016] Reference numerals: 1, bottom mold; 2, left mold; 3, right mold; 4, side wall; 5, top edge of the bottom mold side wall; 6, left groove; 7, right groove; 8, top edge of the left groove; 9, left notch; 10, feed hole; 11, sole molding cavity; DETAILED DESCRIPTION
[0017] The following describes the details and working principle of the implementation mode and embodiment of the utility model in conjunction with the accompanying drawings. The sole manufacturing mold comprises a bottom mold 1, a left mold 2 and a right mold 3. The outer edge of the bottom mold has a side wall 4 extending upward, and the side wall 4 surrounds a sole forming cavity 11. The bottom mold 1 is provided with a feed hole 10 communicating with the sole forming cavity 11. The sole forming cavity 11 is formed by the side wall 4 of the bottom mold, and is complete and has no gaps. The inner surface of the bottom mold side wall 4 corresponds to the side surface of the molded sole, and the upper surface of the bottom mold corresponds to the bottom surface of the molded sole.
[0018] The left mold 2 is provided with a left groove 6 that matches the left side of the bottom mold side wall 4, and the left top edge of the bottom mold side wall matches the top edge 8 of the left groove. The right mold 3 is provided with a right groove 7 that matches the right side of the bottom mold side wall, and the right top edge of the bottom mold side wall 4 matches the top edge of the right groove. That is, when the left mold 2 and the right mold 3 are closed, the left groove 6 and the right groove 7 of the two form a receiving groove that matches the bottom mold side wall 4, and the height of the top edge 5 of the bottom mold side wall is consistent with the height of the top edges of the left groove and the right groove, and the shapes match. During injection molding, the shoe last extends into the top edge 5 of the bottom mold side wall, and the left mold 2 and the right mold 3 are closed, and the bottom edge of the shoe last matches the top edge 8 of the left groove, the top edge of the right groove, and the top edge 5 of the bottom mold side wall. The left mold 2 and the right mold 3 are closed to lock the shoe last and the bottom mold 1. The bottom surface of the shoe last and the bottom mold 1 form a closed sole molding cavity 11. The glue enters the sole molding cavity 11 through the feed hole 10 on the bottom mold. Since the sole molding cavity is complete and has no gaps, the side of the molded sole is complete without seams and has a beautiful appearance. There is no need to manually remove waste edges, which improves production efficiency and reduces labor costs.
[0019] According to the requirements of sole design, the inner surface of the bottom mold side wall 4 is provided with sole side patterns, and the upper surface of the bottom mold is provided with sole bottom patterns, so that the molded sole side and bottom have designed patterns to increase the aesthetics.
[0020] A left notch 9 is provided above the left groove 6 of the left mold, and a right notch is provided above the right groove 7 of the right mold. The left notch 9 and the right notch are recessed inwardly, and the notch formed by the left notch and the right notch matches the end of the shoe last. The inwardly recessed left notch and the right notch cover the shoe last, increase the stability during injection molding, and improve the sole molding effect.
[0021] The left mold 2 and the right mold 3 move horizontally left and right relative to the bottom mold 1, that is, during injection molding, the left mold and the right mold move horizontally toward the bottom mold, and the two are closed. After the injection molding is completed, the left mold and the right mold move in opposite directions and move away from each other. The front and back ends of the sole are the most protruding. The left mold and the right mold are not restricted by the bottom mold and the shoe last when they move horizontally, so the matching degree between the left mold, the right mold and the bottom mold and the shoe last can be improved, thereby improving the quality of the sole molding.
[0022] The working principle of the preferred embodiment is further explained below in conjunction with the accompanying drawings: during injection molding, the shoe last extends to the top edge of the bottom mold, the left mold 2 and the right mold 3 move horizontally relative to the bottom mold 1, the two are close to each other and closed, the left groove 6 and the right groove 7 correspond to the bottom mold 1, the left notch 9 and the right notch correspond to the bottom of the shoe last, the left mold 2 and the right mold 3 lock the shoe last and the bottom mold 1, the bottom edge of the shoe last coincides with the top edge 8 of the left groove, the top edge of the right groove, and the top edge 5 of the side wall of the bottom mold, the bottom surface of the shoe last and the bottom mold 1 form a closed sole molding cavity 11, and the glue enters the sole molding cavity 11 from the feed hole 10 on the bottom mold to form the sole; after the injection molding is completed, the left mold 2 and the right mold 3 move horizontally in opposite directions, the two are separated, the shoe last is not restricted by the left mold 2 and the right mold 3 and moves upward and away, the molded sole is separated from the sole molding cavity 11 with the shoe last, and the molded sole is complete, seamless, and beautiful in appearance.
Claims
1. A sole manufacturing mold, characterized in that: Including bottom mold, left mold and right mold, The outer edge of the bottom mold is extended upward with a side wall, the side wall encloses a sole forming cavity, and the bottom mold is provided with a feed hole communicating with the sole forming cavity; The left mold is provided with a left groove matching the left side of the bottom mold side wall, and the left top edge of the bottom mold side wall is consistent with the top edge of the left groove; The right mold is provided with a right groove matching the right side of the bottom mold side wall, and the right top edge of the bottom mold side wall is consistent with the top edge of the right groove.
2. The sole manufacturing mold according to claim 1, characterized in that: During injection molding, the shoe last extends to the top edge of the bottom mold, the left mold and the right mold are closed, and the bottom edge of the shoe last coincides with the top edge of the left groove, the top edge of the right groove and the top edge of the bottom mold side wall.
3. The sole manufacturing mold according to claim 1, characterized in that: The inner surface of the bottom mold side wall is provided with sole side lines.
4. The sole manufacturing mold according to claim 1, characterized in that: A left notch is provided above the left groove of the left mold, and a right notch is provided above the right groove of the right mold. The left notch and the right notch are recessed inwards, and the notch formed by the left notch and the right notch matches the extending end of the shoe last.
5. The sole manufacturing mold according to claim 1, characterized in that: The left mold and the right mold move horizontally left and right relative to the bottom mold.