Calendering die
By designing a calendering die with a positioning ring groove and a rubber pad ring, the problems of molding quality and unloading difficulties in thin-walled eccentric calendering products were solved, realizing one-time molding and rapid unloading, and reducing equipment costs.
Patent Information
- Application Number
- CN202520288076.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-23
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-23
AI Technical Summary
Existing thin-walled eccentric calendering products suffer from poor molding quality, difficulty in unloading, and low production efficiency during compression molding, and require two sets of molds, increasing equipment and costs.
A calendering die was designed, including an upper die and a lower die. A male die and a female die are respectively installed on the upper and lower die. The male die has a columnar straight groove in the center, and the female die has a positioning ring groove at the top. Combined with a rubber pad ring and a pressure ring, the pre-compression and elastic deformation of the rubber pad ring are used to achieve the positioning of the raw material and the rapid unloading of the formed product.
It enables one-time calendering of thin-walled eccentric products, ensuring molding quality, and achieves rapid unloading through the elastic deformation of the rubber gasket ring, simplifying the mold structure and reducing equipment and mold costs.
Smart Images
Figure CN223748374U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field, specifically disclose a kind of calendering mould for thin-walled eccentric and calendering product. BACKGROUND
[0002] Mould as the core component in product forming process, it determines the process complexity of product processing and the quality of product after final forming. The product (see attached Figure 2 ) for thin-walled eccentric and calendering forming is formed, to ensure the quality of product after forming, generally all adopt subsequence calendering forming, it not only increases the process of product processing, reduces its production efficiency, and needs two sets of mould, increases equipment and mould cost.
[0003] In addition, like this kind of thin-walled eccentric and calendering product in mould pressing forming process, on the one hand, due to the raw material sheet metal cannot be effectively positioned, leading to the raw material sheet metal cannot be calendered according to preset mode under the extrusion of concave-convex mould, leading to the quality of product after forming is poor;Secondly, due to product eccentric and irregular, prone to material jam in subsequent material withdrawal process, leading to product unloading is not smooth. Therefore, for the above-mentioned deficiencies of the existing such thin-walled eccentric and calendering product in mould pressing forming process, the present application proposes a calendering mould that can effectively solve the above technical problems. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of calendering mould for thin-walled eccentric and calendering product, to solve the problems such as the existing no suitable mould realizes the one-time calendering of such product and traditional mould cannot guarantee product quality, difficult to unload after forming.
[0005] The utility model is realized by the following technical solutions:
[0006] A calendering mould, including upper die plate and lower die plate, the upper die plate and lower die plate are respectively installed with axially aligned setting male die and female die, the female die center is provided with the columnar straight slot with the hole diameter greater than the diameter of male die setting, the columnar straight slot bottom is connected with the unloading block that acts with the bottom of male die by unloading rod, the upper surface of female die is provided with positioning ring groove, the compression edge ring that is set on male die is set above the positioning ring groove, and the compression edge ring is connected with the top of male die between rubber pad ring.
[0007] As a further setting of the above scheme, the male die is cylindrically arranged, and the top is provided with an outwardly extending convex edge, and the rubber pad ring is arranged between the convex edge and the compression edge ring.
[0008] As a further setting of the above scheme, the upper surface of the upper die plate is provided with a straight hole, and a special pin is arranged in the straight hole, penetrating the convex edge, the rubber gasket ring and being fixedly connected with the edge ring.
[0009] As a further setting of the above scheme, the inner groove wall of the columnar straight groove and the outer wall of the male die form a uniform and equal-width forming annular gap.
[0010] As a further setting of the above scheme, the upper surface of the lower die plate is provided with a bottom groove surface matched with the female die, the lower surface of the upper die plate is provided with a top groove surface matched with the male die, and a hexagonal socket is arranged in the lower die plate and the upper die plate, the hexagonal socket in the lower die plate is fixedly connected with the female die, and the hexagonal socket in the upper die plate is fixedly connected with the male die.
[0011] As a further setting of the above scheme, a guide column and a guide sleeve are further arranged, the guide sleeve is fixed on the lower surface of the upper die plate, the guide column is fixed on the upper surface of the lower die plate, and the guide column and the guide sleeve are arranged in axial alignment.
[0012] Compared with the prior art, the utility model has the advantages of:
[0013] 1. The calendering die disclosed by the patent is provided with a positioning ring groove on the top of the female die for positioning the raw material sheet metal, and the pre-pressing effect of the edge ring before calendering processing is matched, so that the product can be effectively positioned in the product forming process, then under the action of the forming annular gap between the inner groove wall of the columnar straight groove and the outer wall of the male die, the product circumferential wall can be calendered and formed with equal thickness, and the end face of the product is formed by the action between the male die and the ejection block, the calendering die not only realizes one-time calendering forming of the product, but also effectively guarantees the quality of the formed product.
[0014] 2. The calendering die in the patent adopts a rubber gasket ring to connect the edge ring, and the edge ring is arranged in close contact with the outer wall of the male die, so that the workpiece can be pre-pressed by the action of the rubber gasket ring in the forming process, and after forming, the workpiece can be pushed down by the edge ring by utilizing the elastic deformation of the rubber gasket ring, and finally the formed product is quickly ejected under the action of the ejection rod and the ejection block.
[0015] 3. The male die and the female die in the calendering die are assembled with the upper die plate and the lower die plate in a groove surface assembly and screw connection mode, so that the die positioning is stable, and the die adjustment is simple and reliable. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0017] Figure 1 It is a schematic view of the plane structure of the present application.
[0018] Figure 2 It is a two-angle view of the product after forming in the present application. DETAILED DESCRIPTION
[0019] In order to make the personnel in the technical field better understand the present application scheme, the following will combine the drawings in the embodiment of the present application, and the technical scheme in the embodiment of the present application will be clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will refer to the drawings Figures 1-2 and combine the embodiments to describe the present application in detail.
[0021] Embodiment 1
[0022] Embodiment 1 discloses a calendering mold for a thin-walled eccentric and calendering formed product, referring to the drawings Figure 1 The main part of the calendering mold includes a lower mold plate 1, an upper mold plate 2, a female mold 3, a male mold 4, a guide column 11 and a guide sleeve 12. The guide sleeve 12 is fixed on the lower surface of the upper mold plate 2, and the guide column 11 is fixed on the upper surface of the lower mold plate 1, and the two are arranged in axial alignment. During the operation of the mold, the deviation of the female mold 3 and the male mold 4 during the forming process can be avoided by the action of the guide column 11 and the guide sleeve 12.
[0023] A bottom groove surface matched with the female mold 3 is formed on the upper surface of the lower mold plate 1, and a top groove surface matched with the male mold 4 is formed on the lower surface of the upper mold plate 2. An inner hexagonal screw 5 extending upward and fixedly connected with the female mold 3 is arranged at the bottom of the lower mold plate 1, and the whole female mold 3 can be stably assembled in the bottom groove surface through the connecting action of the inner hexagonal screw 5. Similarly, an inner hexagonal screw 5 extending downward and fixedly connected with the male mold 4 is arranged at the top of the upper mold plate 2, and finally a mold handle 6 protruding from the stepped hole of the upper mold plate 2 is arranged at the top of the male mold 4.
[0024] The male die 4 in the embodiment is in a whole cylindrical shape, and a convex edge 401 is arranged at the top of the male die 4 and extends to the periphery, then a rubber pad ring 7 is sleeved on the periphery of the male die 4 below the convex edge 401, a pressure ring 8 is connected to the lower surface of the rubber pad ring 7, and the inner circle of the pressure ring 8 is in close contact with the outer wall of the male die 4. At the same time, a straight hole is opened on the upper surface of the upper die plate 2, and a special pin 9 is arranged in the straight hole and fixedly connected with the rubber pad ring 7 and the pressure ring 8, so that the upper and lower ends of the rubber pad ring 7 are tightly arranged against the convex edge 401 and the pressure ring 8 under the action of the special pin 9, and then the pre-pressing of the raw metal sheet and the unloading of the formed product can be realized by the elastic deformation of the rubber pad ring 7 during the downward pressing of the male die 4.
[0025] In order to realize the accurate positioning of the raw metal sheet before the workpiece is formed, a positioning ring groove 301 slightly larger than the raw metal sheet is opened on the upper surface of the female die 3, and then the accurate positioning of the raw metal sheet during the forming process can be realized by cooperating with the action of the pressure ring 8. A cylindrical straight groove is opened at the center of the female die 3 and is axially aligned with the male die 4, and the hole diameter of the cylindrical straight groove is slightly larger than the outer diameter of the male die 4, so that a uniform and equal-width forming annular gap can be formed between the two. Finally, an unloading block 9 is arranged at the bottom of the cylindrical straight groove, the top of the unloading block 9 is matched with the shape of the lower end of the male die 4, so that it can press the flat metal sheet into an eccentric disc with a concave-convex structure, and finally an unloading rod 10 connected with the unloading block 9 is arranged at the center of the lower die plate 1.
[0026] The processing steps and working principle of the calendering die disclosed in Embodiment 1 during processing are as follows:
[0027] First, the raw metal sheet is placed in the positioning ring groove 301 on the top surface of the female die 3, and then the upper die plate 2 is pushed down. During the downward movement of the upper die plate 2, the pressure ring 8 will first act on the surface of the raw metal sheet to realize compression due to the action of the rubber pad ring 7, then the rubber pad ring 7 is compressed and deformed during the continuous downward movement, and the male die 4 extends into the cylindrical straight groove and acts on the raw metal sheet until the lower end of the male die 4 extrudes the raw metal sheet on the upper surface of the unloading block 9, so that the lower end surface of the product is formed by molding, and the four peripheral side walls of the product are calendered in the forming annular gap between the male die 4 and the cylindrical straight groove.
[0028] After the product is formed, the upper die plate 2 moves upward and returns to its original position. At this time, the formed product is clamped on the male die 4 and extends out of the cylindrical straight groove together with the male die 4. At this time, the deformation of the rubber pad ring 7 will make the pressure ring 8 move downward relative to the male die 4, thereby pushing the product off the male die 4 and falling into the cylindrical straight groove. Finally, the unloading block 9 is pushed upward by the unloading rod 10 until the product is ejected out of the cylindrical straight groove, and then the product can be quickly taken away.
[0029] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A calendering die comprising an upper die plate and a lower die plate, on which an upper mold and a lower mold are respectively installed in an axially aligned manner, characterized in that, The female mold is provided with a columnar straight groove with a larger aperture than the diameter of the male mold at the center, the bottom of the columnar straight groove is connected with a discharging block interacting with the bottom of the male mold through a discharging rod, the upper surface of the female mold is provided with a positioning ring groove, a flange ring is arranged above the positioning ring groove and is fitted on the male mold, and the flange ring and the top of the male mold are connected with a rubber gasket ring.
2. The calendering die of claim 1, wherein The male mold is cylindrically arranged and is provided with an outwardly extending flange at the top, and the rubber gasket ring is arranged between the flange and the flange ring.
3. The calendering die of claim 2, wherein, The upper surface of the upper mold plate is provided with a straight hole, and the straight hole is provided with a special pin penetrating through the flange, the rubber gasket ring and being fixedly connected with the flange ring.
4. The calendering die of claim 2, wherein The inner groove wall of the columnar straight groove and the outer wall of the male mold form a uniform and equal-width forming annular gap.
5. The calendering die of claim 1, wherein, The upper surface of the lower mold plate is provided with a bottom groove surface matched with the female mold, the lower surface of the upper mold plate is provided with a top groove surface matched with the male mold, and the lower mold plate and the upper mold plate are both provided with an internal hexagonal screw penetrating therethrough, the internal hexagonal screw in the lower mold plate is fixedly connected with the female mold, and the internal hexagonal screw in the upper mold plate is fixedly connected with the male mold.
6. The calendering die of claim 1, wherein, Further comprising a guide column and a guide sleeve, the guide sleeve is fixed on the lower surface of the upper mold plate, the guide column is fixed on the upper surface of the lower mold plate, and the guide column and the guide sleeve are arranged in axial alignment.