A roll pin die
By designing a pin-coating die that includes conveying, pushing, cutting, initial winding, and full winding mechanisms, the problems of demolding difficulties and edge curling during the pin-coating die winding process were solved, thus achieving high-quality pin-coating production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-04-10
AI Technical Summary
Existing pin-coating dies suffer from problems such as difficulty in demolding, edge warping, and loosening during the winding process, which affects the workmanship quality of the pins.
The design employs a pin-coiling die that includes a first upper die, a second upper die, and a lower die. Combined with conveying, pushing, cutting, initial winding, and full winding mechanisms, it achieves precise cutting, initial winding, and full winding of the metal sheet, ensuring that the core fits snugly against the inner wall of the pin.
This improved the core bonding of the coiled pins, preventing loosening, enhancing the quality of the coiled pins, and saving materials, thus achieving economical and efficient coiled pin production.
Smart Images
Figure CN119702850B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of a coiled pin mold, in particular to a coiled pin mold. BACKGROUND
[0002] The coiled pin is a process of winding the metal sheet into a tubular shape, and the winding method is usually to clamp one end of the metal sheet by a small tubular clamp and rotate and wind, and the winding method is a solid column as a whole, and another method is to clamp one end of the metal sheet by a larger clamp, and the outer wall of the clamp can support the outer wall of the metal coil, but the winding of this method will keep the clamping force of the clamp in the core all the time, and it is difficult to demold, and the middle part of the formed coiled pin will have a warped edge, which cannot completely fit the inner wall of the coiled pin, and has the possibility of looseness, affecting the work quality of the coiled pin. SUMMARY
[0003] The technical problem to be solved by the present application is to provide a coiled pin mold to solve the problem of economic, high-quality and efficient production of coiled pins.
[0004] Based on the technical problems in the background art, the present application provides a coiled pin mold, which comprises a first upper mold, a second upper mold and a lower mold, the first upper mold and the second upper mold can be combined with the lower mold, the side of the lower mold is provided with a conveying mechanism and a pushing mechanism, the first upper mold and the lower mold are provided with a cutting mechanism, the second upper mold and the lower mold are provided with a primary winding mechanism and a full winding mechanism, the conveying mechanism can convey the metal sheet to the primary winding mechanism, the first upper mold and the lower mold can cut off the metal sheet, the pushing mechanism can push the metal sheet in the primary winding mechanism to the full winding mechanism, when the second upper mold and the lower mold are combined, the primary winding mechanism can first wind a piece of metal sheet, and the full winding mechanism can fully wind another piece of metal sheet.
[0005] Preferably, the pushing mechanism can push the metal sheet in the primary winding mechanism into the full winding mechanism.
[0006] Preferably, the cutting mechanism comprises a square extrusion block mounted on the first upper mold, and a base mounted on the lower mold, the upper surface of the base is provided with a cutting groove, the surface of the square extrusion block is provided with a cutter body which can be embedded in the cutting groove, the conveying mechanism can convey the metal sheet between the square extrusion block and the base, and the first upper mold and the base can cut the metal sheet.
[0007] Preferably, the primary winding mechanism comprises a first inverted mold slidably mounted on the lower mold and having a first winding cavity, and a first guide mounted on the second upper mold, when the second upper mold and the lower mold are combined, the guide will push the first inverted mold to move towards the base so that the end of the metal sheet is extruded into a semicircle along the first winding cavity, the middle part of the first inverted mold is provided with a first hollow groove, and the first hollow groove is provided with a first stopper fixed on the lower mold. Preferably, the pushing mechanism can push the metal sheet in the primary winding mechanism into the full winding mechanism.
[0008] Preferably, the full winding mechanism comprises a second inverted mold and a third inverted mold slidingly installed on the lower mold, the second inverted mold is provided with a second winding cavity, the third inverted mold is provided with a third winding cavity, the second winding cavity and the third winding cavity form a complete winding cavity, the second inverted mold and the third inverted mold are clamped with a clamping groove parallel to the ground, the clamping groove is communicated with the tangent direction of the winding cavity, the middle part of the second inverted mold and the third inverted mold are provided with a second air slot, the lower mold is provided with a second stop block located in the second air slot, and the full winding mechanism further comprises a second guide installed on the second upper mold.
[0009] Preferably, the conveying mechanism is provided with a baffle plate on both sides.
[0010] Preferably, the first winding cavity is adjacent to the second winding cavity and the third winding cavity.
[0011] Compared with the prior art, the roll pin mold adopting the technical scheme has the following technical effects:
[0012] The roll pin core of the roll pin can be completely attached to the inner wall of the roll pin, the process degree of the roll pin core is improved, and the quality of the roll pin is improved. The attachment of the roll pin core to the inner wall can avoid loosening of the roll pin core. The roll pin can be in a hollow state, and the material required for the roll pin is saved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic view of the three-dimensional structure of the present application Figure 1 ;
[0014] Figure 2 is a schematic view of the three-dimensional structure of the present application Figure 2 ;
[0015] Figure 3 is a schematic view of the full winding mechanism of the present application
[0016] Figure 4 is a schematic view of the initial winding mechanism and the cutting mechanism of the present application
[0017] Figure 5 is a front view of the full winding mechanism of the present application
[0018] Figure 6 is a front view of the initial winding mechanism of the present application
[0019] In the figure: 1, first upper die; 2, second upper die; 3, lower die; 4, conveying mechanism; 5, pushing mechanism; 6, cutting mechanism; 7, initial rolling mechanism; 8, full rolling mechanism; 61, square extrusion block; 62, base; 621, cutting groove; 611, cutter body; 311, first rolling cavity; 31, first reverse die; 32, first guide; 312, first empty groove; 33, first stop block; 81, second reverse die; 82, third reverse die; 811, second rolling cavity; 821, third rolling cavity; 83, clamping groove; 84, second empty groove; 85, second stop block; 86, second guide; 41, baffle. DETAILED DESCRIPTION
[0020] In this application, unless otherwise clearly indicated and limited, the terms "mount", "connect", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0021] In this application, unless otherwise clearly indicated and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0022] EMBODIMENT
[0023] Please refer to Figures 1-6The application provides a roll pin die, which comprises a first upper die 1, a second upper die 2 and a lower die 3, the first upper die 1 and the second upper die 2 can be combined with the lower die 3, the side of the lower die 3 is provided with a conveying mechanism 4 and a pushing mechanism 5, the first upper die 1 and the lower die 3 are provided with a cutting mechanism 6, the second upper die 2 and the lower die 3 are provided with a primary winding mechanism 7 and a full winding mechanism 8, the conveying mechanism 4 can convey a metal plate to the primary winding mechanism 7, the first upper die 1 and the lower die 3 can cut the metal plate, the pushing mechanism 5 can push the metal plate in the primary winding mechanism 7 to the full winding mechanism 8, when the second upper die 2 and the lower die 3 are combined, the primary winding mechanism 7 can wind a metal plate for the first time, and the full winding mechanism 8 can wind another metal plate completely; in the scheme, a continuous long metal sheet is conveyed to the primary winding mechanism 7 through the conveying mechanism 4, in the process, the metal sheet stops moving when the metal sheet contacts the primary winding mechanism 7, the first upper die 1 and the lower die 3 are combined to cut the metal sheet, thereby forming a section of the metal sheet, then, when the first upper die 1 and the lower die 3 are in the combined state, the second upper die 2 and the lower die 3 are combined, the end of the cut metal sheet is pushed to form a semicircular roll head, at this time, the second upper die 2 and the first upper die 1 are simultaneously moved upward to separate, the pushing mechanism 5 pushes the metal sheet in the primary winding mechanism 7 to the full winding mechanism 8, and the conveying mechanism 4 and the cutting mechanism 6 are operated again, the primary winding mechanism 7 is operated, and the full winding mechanism 8 is also operated to wind the metal sheet in the primary winding mechanism 7.
[0024] In specific embodiments, referring to Figure 2 、 Figure 4 , the pushing mechanism 5 can push the metal sheet in the primary winding mechanism 7 to the full winding mechanism 8.
[0025] In specific embodiments, referring to Figure 1 , the cutting mechanism 6 comprises a square extrusion block 61 mounted on the first upper die 1 and a base 62 mounted on the lower die 3, the upper surface of the base 62 is provided with a cutting groove 621, the surface of the square extrusion block 61 is provided with a cutter body 611 which can be embedded in the cutting groove 621, the conveying mechanism 4 can convey the metal sheet between the square extrusion block 61 and the base 62, the first upper die 1 and the base 62 can cut the metal sheet when they are combined, in the scheme, the lower surface of the square extrusion block 61 of the cutting mechanism 6 is a plane, when the first upper die 1 and the second upper die 2 are combined, the square extrusion block 61 can extrude the metal sheet, and the metal sheet is cut in the process of extrusion, the square extrusion block 61 can extrude the metal sheet together with the lower die 3, thereby preventing the metal sheet from being deformed due to cutting.
[0026] In specific embodiments, referring to Figure 2 、 Figure 4 、 Figure 6, the first coiling mechanism 7 comprises a first inverted mold 31 slidably installed on the lower mold 3 and having a first coiling cavity 311, and a first guide 32 installed on the second upper mold 2, when the second upper mold 2 is combined with the lower mold 3, the guide 32 pushes the first inverted mold 31 to move towards the base 62, so that the end of the metal sheet is extruded along the first coiling cavity 311 to form a semicircular arc, the middle part of the first inverted mold 31 is provided with a first empty slot 312, and the first empty slot 312 is provided with a first stopper 33 fixed on the lower mold 3, in the scheme, when the second upper mold 2 is combined with the lower mold 3, the first guide 32 guides the first inverted mold 31 to move towards the metal sheet on the lower mold 3, since the metal sheet is clamped by the square extrusion block 61, a part of the metal sheet is left when the metal sheet is extruded by the square extrusion block 61, the part of the metal sheet contacts the first coiling cavity 311, and the first coiling cavity 311 forcibly bends the end of the metal sheet to form a semicircle, at this time, the initial coiling of the metal sheet is completed, when the mold is separated, the metal sheet may be moved by the first inverted mold 31, when the first inverted mold 31 moves away from the metal sheet, the first stopper 33 prevents the metal sheet from being moved by the first inverted mold 31; in a further embodiment, the sliding of the first inverted mold 31 and the lower mold 3 needs to have a rebounding effect, in the scheme, the rebounding sliding effect is a prior art, in the scheme, the first inverted mold 31 needs to move away from the metal sheet during mold separation.
[0027] In specific embodiments, reference is made to Figure 2 、 Figure 3 、 Figure 5 , the full coiling mechanism 8 comprises a second inverted mold 81 and a third inverted mold 82 slidably installed on the lower mold 3, the second inverted mold 81 is provided with a second coiling cavity 811, the third inverted mold 82 is provided with a third coiling cavity 821, the second coiling cavity 811 and the third coiling cavity 821 form a complete coiling cavity, the second inverted mold 81 and the third inverted mold 82 are clamped by a clamping groove 83 parallel to the ground, the clamping groove 83 is communicated with the tangent direction of the coiling cavity, the middle part of the second inverted mold 81 and the third inverted mold 82 is provided with a second empty slot 84, the second stopper 85 located in the second empty slot 84 is installed on the lower mold 3, the full coiling mechanism 8 further comprises a second guide 86 installed on the second upper mold 2, when the second upper mold 2 is combined with the lower mold 3, the second guide 86 pushes the second inverted mold 81 to move towards the stopper; in the scheme, the metal sheet extruded by the initial coiling mechanism 7 needs to be pushed by the pushing mechanism 5 to move in the coiling cavity, when the second upper mold 2 is combined with the lower mold 3, the second guide 86 pushes the second inverted mold 81 and the third inverted mold 82 to move towards the second stopper 85, at this time, the metal sheet is extruded in the coiling groove by the second stopper 85 to be coiled, when the coiling is completed, the second upper mold 2 is separated from the lower mold 3, and the pushing mechanism 5 can push the metal sheet in the next first coiling cavity 311 into the coiling cavity for the next coiling.
[0028] In specific embodiments, reference is made to Figure 2Two sides of the conveying mechanism 4 are provided with baffles 41, which can guide the metal plate and prevent the metal plate from being skewed.
[0029] In specific embodiments, referring to Figure 2 、 Figure 3 、 Figure 4 The first winding cavity 311 is adjacent to the second winding cavity 811 and the third winding cavity 821.
[0030] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.
Claims
1. A roll pin die characterized by, The application relates to a metal sheet cutting and winding device, which comprises a first upper die (1), a second upper die (2) and a lower die (3), the first upper die (1) and the second upper die (2) can be combined with the lower die (3), the side of the lower die (3) is provided with a conveying mechanism (4) and a pushing mechanism (5), the first upper die (1) and the lower die (3) are provided with a cutting mechanism (6), the second upper die (2) and the lower die (3) are provided with a primary winding mechanism (7) and a full winding mechanism (8), the conveying mechanism (4) conveys metal sheets to the primary winding mechanism (7), the first upper die (1) and the lower die (3) cut the metal sheets, the pushing mechanism (5) pushes the metal sheets in the primary winding mechanism (7) to the full winding mechanism (8), when the second upper die (2) and the lower die (3) are combined, the primary winding mechanism (7) winds a metal sheet for the first time, and the full winding mechanism (8) winds another metal sheet completely; The cutting mechanism (6) comprises a square extrusion block (61) installed on the first upper die (1) and a base (62) installed on the lower die (3), the upper surface of the base (62) is provided with a cutting groove (621), the surface of the square extrusion block (61) is provided with a cutter body (611) which can be embedded in the cutting groove (621), and the conveying mechanism (4) conveys the metal sheets between the square extrusion block (61) and the base (62); The primary winding mechanism (7) comprises a first inverted die (31) which is slidably installed on the lower die (3) and has a first winding cavity (311), and a first guide (32) installed on the second upper die (2), when the second upper die (2) and the lower die (3) are combined, the first guide (32) drives the first inverted die (31) to move towards the base (62) so that the end of the metal sheet is extruded into a semicircular arc along the first winding cavity (311), the middle part of the first inverted die (31) is provided with a first empty groove (312), and the first empty groove (312) is provided with a first stop block (33) fixed on the lower die (3); The full winding mechanism (8) comprises a second inverted die (81) and a third inverted die (82) which are slidably installed on the lower die (3), the second inverted die (81) is provided with a second winding cavity (811), the third inverted die (82) is provided with a third winding cavity (821), the second winding cavity (811) and the third winding cavity (821) form a complete winding cavity, the second inverted die (81) and the third inverted die (82) are provided with a clamping groove (83) which is parallel to the ground, the clamping groove (83) is communicated with the tangent direction of the winding cavity, the middle part of the second inverted die (81) and the third inverted die (82) is provided with a second empty groove (84), the lower die (3) is provided with a second stop block (85) located in the second empty groove (84), and the full winding mechanism (8) further comprises a second guide (86) installed on the second upper die (2), when the second upper die (2) and the lower die (3) are combined, the second guide (86) drives the second inverted die (81) to move towards the second stop block (85); The conveying mechanism (4) is provided with a baffle (41) on both sides; The first winding cavity (311) is adjacent to the second winding cavity (811) and the third winding cavity (821).
Citation Information
Patent Citations
Hinge stamping and curling forming device
CN220387582U