Rolling die

Abstract

The utility model relates to an edge rolling die. The edge rolling die comprises an upper die plate and a lower die plate, the edge rolling die is simple in structure, ingenious in design and high in edge rolling efficiency, and coil materials are detached at the same time; when the edge rolling die is in a die opening state, the front end of the material plate passes through the upper surface of the circular shaft to reach the positioning assembly and stops, at the moment, in the die closing process of the edge rolling die, the material cutting punch is matched with the outer side edge of the fixing base along the outer side edge of the fixing base to cut the front end of the material plate, and meanwhile the lower female die punch positions the cut material plate on the circular shaft; and in the continuous die assembly process, the lower female die punch drives the material plate to surround the outer side surface of the circular shaft from the middle of the material plate and is matched with the upper female die punch to punch the material plate into a circle, cutting and edge rolling are integrated in the same die, the structure is compact, the circular shaft is located in the middle of the fixing base and the positioning assembly, and the die assembly efficiency is improved. The central axis of the cut material plate coincides with the central axis of the circular shaft, the rolling tolerance of the material plate is small, automatic one-time rolling is facilitated while a rolling die is closed for cutting, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling moulds, and more specifically to a rolling mould. Background Art

[0002] A rolling die is a die used to roll metal coils such as steel plates, copper plates, aluminum plates, etc. into a cylindrical shape through mechanical movements such as stamping.

[0003] Existing rolling dies, such as patent number CN202020433955.7, disclose a stamping rolling die, including an upper die and a lower die; the upper die is provided with a first punch head and a second punch head; the lower surface of the first punch head is provided with an upward depression, and the second punch head is provided with a cylindrical stamping model; the lower die is provided with a first groove corresponding to the first punch head, and a second groove corresponding to the cylindrical stamping model; the groove bottom surface of the first groove is an arc shape adapted to the lower surface of the first punch head; the shape of the second groove is adapted to the outer contour of the cylindrical stamping model;

[0004] The efficiency of achieving rolling in the above scheme is relatively low. The first step is to cut the coil into a first sheet through a cutting mold, and then use the first punch head and the first groove to cooperate with each other to preliminarily punch the first sheet so that the middle part of the sheet is concave to form a certain curvature, thereby obtaining a second sheet; the second step is to place the preliminarily punched second sheet above the second groove, and then press the second sheet into the second groove through a cylindrical stamping model. The second sheet is bent along the outer surface of the cylindrical stamping model, and the two ends of the second sheet are rolled up to roll the second sheet. The operation is relatively cumbersome, and the coil cannot achieve the purpose of cutting and rolling at one time. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a rolling mold in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a rolling mold, comprising an upper mold plate and a lower mold plate, wherein a lower die punch is provided on a side surface of the upper mold plate facing the lower mold plate; an upper die punch corresponding to the lower die punch is provided on the lower mold plate, and a fixing seat fixedly arranged on one side of the upper die punch and on which a feed plate is placed horizontally; a horizontally arranged round shaft is provided between the lower die punch and the upper die punch; the upper surface of the round shaft is flush with the upper surface of the fixing seat; a circular forming cavity adapted to the outer contour of the round shaft is formed in the middle part after the lower die punch and the upper die punch are molded together; the upper mold plate is located on one side of the lower die punch and corresponds to the fixing seat and the upper die punch, and a cutting punch is provided to cooperate with the outer edge of the fixing seat to cut the material plate; a positioning component for positioning the material plate is provided on the side of the lower mold plate facing away from the fixing seat along the feeding direction of the material plate; the round shaft is located between the positioning component and the fixing seat;

[0007] The rolling die of the utility model, wherein a positioning groove is provided on the surface of one side of the lower end of the cutting punch facing the lower die punch, and a stopper is provided on the upper surface of the upper die punch to cooperate with the positioning groove;

[0008] The rolling die of the utility model, wherein the lower surface of the cutting punch is lower than the lower surface of the lower die punch;

[0009] The rolling mold of the utility model, wherein the distance between the positioning assembly and the fixing seat is not greater than the circumference of the circular shaft;

[0010] The rolling die of the utility model, wherein the lower die punch comprises a stopper plate, a balancing pad and a lower die forming block which are fixedly connected in sequence from top to bottom;

[0011] The rolling die of the utility model, wherein the middle part of the bottom surface of the lower concave die forming block is provided with a first arc-shaped groove which is concave upwards corresponding to the circular axis; the lower end of the lower concave die forming block is located on the left and right sides of the first arc-shaped groove and is provided with first inclined surfaces which are symmetrically arranged upwards and outwards;

[0012] The rolling die of the utility model, wherein the upper die punch comprises a lower pad and an upper die forming block which are fixedly connected in sequence from bottom to top;

[0013] The rolling die of the utility model, wherein the upper concave die forming block is provided with a second arc-shaped groove which is concave downwards corresponding to the round shaft; the left and right side walls of the upper concave die forming block located at the second arc-shaped groove are respectively connected with second inclined surfaces which extend outwards and upwards and match and connect with the first inclined surface; the stopper is located at the upper end of one side of the upper concave die forming block close to the fixed seat;

[0014] The rolling die of the utility model, wherein the upper die plate is located on a side of the cutting punch away from the lower die punch and is fixedly provided with a guide column; a guide seat corresponding to the guide column is provided on one side of the fixed seat; the upper surface of the guide seat is higher than the upper surface of the material plate; a guide slot slidably connected to the guide column is provided on the guide seat;

[0015] The rolling mold described in the utility model, wherein the positioning assembly includes a fixed column fixedly connected to the lower template, and a positioning piece arranged at the end of the fixed column; the upper surface of the positioning piece is higher than the upper surface of the material plate and not higher than the upper surface of the guide seat.

[0016] The beneficial effects of the utility model are as follows: the rolling die has a simple structure and an ingenious design, and the material coil can be disassembled and removed at the same time, with high rolling efficiency; when the rolling die is in an open mold state, it is only necessary to place the material plate on the upper surface of the fixed seat and drive the material plate to move toward the circular axis. The front end of the material plate passes through the upper surface of the circular axis and moves to the positioning assembly in the direction away from the mounting seat and stops. At this time, during the closing process of the rolling die, the cutting punch cooperates with the outer edge of the fixed seat to cut the front end of the material plate along the outer edge of the fixed seat, and at the same time, the lower die punch positions the cut material plate on the circular axis. During the continued closing process, the lower die punch drives the material plate from its middle part along the outer surface of the circular axis and cooperates with the upper die punch to punch the material plate into a circle. The structure integrates cutting and rolling in the same mold, has a compact structure, and the circular axis is located in the middle of the fixed seat and the positioning assembly. The center axis of the cut material plate coincides with the center axis of the circular axis. The material plate has a small rolling tolerance, which is conducive to automatic one-time rolling while the rolling die is closing and cutting, and has high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. 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 creative work:

[0018] Figure 1 This is a schematic diagram of the structure of a rolling mold in a preferred embodiment of the utility model. Figure 1 (Mold closing state diagram);

[0019] Figure 2 This is a schematic diagram of the structure of a rolling mold in a preferred embodiment of the utility model. Figure 2 (Mold opening status diagram). DETAILED DESCRIPTION

[0020] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0023] Moreover, the terms "up, down, front, back, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial 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 creative work belong to the protection scope of the present invention.

[0025] A rolling die in a preferred embodiment of the utility model is as follows Figure 1-2As shown, it includes an upper template 10 and a lower template 20, wherein a lower die punch 11 is provided on the surface of the upper template 10 facing the lower template 20; an upper die punch 21 corresponding to the lower die punch 11 is provided on the lower template 20, and a fixing seat 22 fixedly arranged on one side of the upper die punch 21 and horizontally placed on the feed plate 01; a horizontally arranged round shaft 23 is provided between the lower die punch 11 and the upper die punch 21; it is worth noting that the length of the round shaft 23 is not less than the width of the feed plate 01; the upper surface of the round shaft 23 is flush with the upper surface of the fixing seat 22; the lower die punch 11 After the upper die punch 21 is molded together, a circular forming cavity is formed in the middle part, which matches the outer contour of the circular shaft 23, thereby ensuring that the cut sheet is rolled into a circle after the mold is molded together; the upper template 10 is located on one side of the lower die punch 11, and is provided with a cutting punch 12 that cooperates with the outer edge of the fixed seat 22 to cut the sheet 01; the cutting punch 12 is a plate-like structure extending toward the lower die, and its length is not less than the width of the sheet; the surface of the cutting punch 12 facing the fixed seat is a plane, and the blade at its end is tapered from top to bottom, which is convenient for punching. The lower template 20 is provided with a positioning component 24 for positioning the sheet 01 along the feeding direction of the sheet 01 on the side facing away from the fixed seat 22; the circular shaft 23 is located between the positioning component 24 and the fixed seat 22.

[0026] The rolling die has a simple structure and an ingenious design. The material coil can be disassembled and removed at the same time, and the rolling efficiency is high. When the rolling die is in an open mold state, it is only necessary to place the material plate on the upper surface of the fixed seat and drive the material plate to move toward the circular axis. The front end of the material plate passes through the upper surface of the circular axis and moves to the positioning component away from the mounting seat and stops. At this time, during the closing process of the rolling die, the cutting punch cooperates with the outer edge of the fixed seat to cut the front end of the material plate along the outer edge of the fixed seat, and at the same time, the lower die punch positions the cut material plate on the circular axis. During the continuous closing process, the lower die punch drives the material plate from its middle part along the outer surface of the circular axis and cooperates with the upper die punch to punch the material plate into a circle. The structure integrates cutting and rolling in the same mold, has a compact structure, and the circular axis is located in the middle of the fixed seat and the positioning component. The center axis of the cut material plate coincides with the center axis of the circular axis. The material plate has a small rolling tolerance, which is conducive to automatic one-time rolling while the rolling die is closing and cutting, and has high work efficiency.

[0027] In one embodiment, a positioning groove 121 is provided on the side surface of the lower end of the cutting punch 12 facing the lower die punch 11, and a stopper 211 is provided on the upper surface of the upper die punch 21 to cooperate with the positioning groove 121; when the mold is closed, the stopper 211 is inserted into the positioning groove 121 of the cutting punch 12 and is cut and connected therewith, thereby positioning the cutting punch, which can prevent the cutting punch 12 from being worn or broken due to excessive stamping.

[0028] Furthermore, the lower surface of the cutting punch 12 is lower than the lower surface of the lower die punch 11, which can ensure that the material sheet is cut first during the mold closing process. During the continued mold closing process, the rounding of the cut material sheet does not affect the uncut material sheet, which is convenient for rolling.

[0029] Furthermore, the distance between the positioning assembly 24 and the fixing seat 22 is no greater than the circumference of the circular shaft 23, so that the length of the cut sheet is no greater than the circumference of the circular shaft, and there is no need to deliberately measure the cutting size. No excess waste will be generated after the sheet is rolled, thus saving materials.

[0030] Furthermore, the lower die punch 11 includes a stop plate 111, a balancing pad 112 and a lower die forming block 113 which are fixedly connected in sequence from top to bottom. The structure is simple and the lower die forming block will not be easily displaced.

[0031] Furthermore, a first arc-shaped groove 1131 is provided at the middle of the bottom surface of the lower concave die forming block 113 corresponding to the circular shaft 23, and a first inclined surface 1132 inclined upward and outward and symmetrically arranged on the left and right sides of the first arc-shaped groove 1131 is provided at the lower end of the lower concave die forming block 113. The end of the lower concave die forming block 113 is tapered to facilitate subsequent stamping with the upper die punch.

[0032] Furthermore, the upper die punch 21 includes a lower pad 212 and an upper die forming block 213 which are fixedly connected in sequence from bottom to top, and the upper die forming block 213 is fixed on the lower mold plate 20 through the lower pad 212; the structure is simple.

[0033] Furthermore, the upper die forming block 213 is provided with a second arc groove 2121 which is concave downwards corresponding to the circular shaft 23; the left and right side walls of the upper die forming block 213 located at the second arc groove 2121 are respectively connected with second inclined surfaces 2122 extending outwards and upwards and matching and connected with the first inclined surface 1132; the lower end of the lower die forming block 113 is partially inserted into the groove between the two second inclined surfaces 2122; the stamping is stable and the positioning is good. The stopper 211 is located at the upper end of one side of the upper die forming block 213 close to the fixed seat 22; it is convenient to position the cutting punch 12.

[0034] Furthermore, a guide column 13 is fixedly provided on the side of the upper template 10 located at the cutting punch 12 away from the lower die punch 11; a guide seat 25 corresponding to the guide column 13 is provided on one side of the fixed seat 22; the upper surface of the guide seat 25 is higher than the upper surface of the material plate 01; a guide groove (not shown in the figure) is provided on the guide seat 25 and is slidably connected to the guide column 13; the guiding is good, the upper and lower molds are convenient to close, and the upper template 10 and the lower template 20 will not be displaced.

[0035] Furthermore, the positioning assembly 24 includes a fixed column 241 fixedly connected to the lower template 20, and a positioning piece 242 arranged at the end of the fixed column 241; the upper surface of the positioning piece 242 is higher than the upper surface of the material sheet 01 and not higher than the upper surface of the guide seat 25. When the mold is closed, the positioning assembly will not interfere with the stamping curling, and can also position the material sheet, saving time and effort.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A rolling mold, comprising an upper mold plate and a lower mold plate, characterized in that: A lower die punch is provided on the surface of one side of the upper template facing the lower template; an upper die punch corresponding to the lower die punch is provided on the lower template, and a fixing seat fixedly arranged on one side of the upper die punch and on which a feed plate is placed horizontally; a horizontally arranged round shaft is provided between the lower die punch and the upper die punch; the upper surface of the round shaft is flush with the upper surface of the fixing seat; a circular forming cavity matching the outer contour of the round shaft is formed in the middle part after the lower die punch and the upper die punch are molded together; the upper template is located on one side of the lower die punch and corresponds to the fixing seat and the upper die punch, and a cutting punch for cooperating with the outer edge of the fixing seat to cut the material plate is provided; a positioning component for positioning the material plate is provided on the side of the lower template facing away from the fixing seat along the feeding direction of the material plate; the round shaft is located between the positioning component and the fixing seat.

2. The rolling mold according to claim 1, characterized in that: A positioning groove is provided on one side surface of the lower end of the cutting punch facing the lower die punch, and a stopper which cooperates and plugs with the positioning groove is provided on the upper surface of the upper die punch.

3. The rolling mold according to claim 2, characterized in that: The distance between the positioning assembly and the fixing seat is not greater than the circumference of the circular axis.

4. The rolling mold according to claim 2, characterized in that: The lower surface of the cutting punch is lower than the lower surface of the lower die punch.

5. The rolling die according to any one of claims 2 to 4, characterized in that: The lower die punch comprises a stop plate, a balancing pad and a lower die forming block which are fixedly connected in sequence from top to bottom.

6. The rolling mold according to claim 5, characterized in that: A first arc-shaped groove concave upward is arranged in the middle of the bottom surface of the lower concave die forming block corresponding to the circular axis; and a first inclined surface inclined upward and outward and symmetrically arranged on the left and right sides of the first arc-shaped groove is arranged at the lower end of the lower concave die forming block.

7. The rolling mold according to claim 6, characterized in that: The upper die punch comprises a lower pad and an upper die forming block which are fixedly connected in sequence from bottom to top.

8. The rolling mold according to claim 7, characterized in that: A second arc-shaped groove which is concave downward is arranged on the upper concave die forming block corresponding to the circular axis; the left and right side walls of the upper concave die forming block located at the second arc-shaped groove are respectively connected with second inclined surfaces which extend outward and upward and match and are connected with the first inclined surface; the stopper is located at the upper end of one side of the upper concave die forming block close to the fixed seat.

9. The rolling die according to any one of claims 1-4 and 6-7, characterized in that: The upper template is located on the side of the cutting punch away from the lower die punch and is fixedly provided with a guide column; a guide seat corresponding to the guide column is provided on one side of the fixed seat; the upper surface of the guide seat is higher than the upper surface of the material plate; and a guide groove is provided on the guide seat and is slidably connected to the guide column.

10. The rolling mold according to claim 9, characterized in that: The positioning assembly includes a fixing column fixedly connected to the lower template, and a positioning piece arranged at the end of the fixing column; the upper surface of the positioning piece is higher than the upper surface of the material plate and not higher than the upper surface of the guide seat.

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