Hinge stamping die
By designing a hinge stamping die and utilizing a combination structure of a feeding module and a die, multiple hinge bodies can be formed simultaneously, solving the problem of low production efficiency in existing technologies and improving production efficiency.
Patent Information
- Application Number
- CN202423031424.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing hinge stamping dies have low production efficiency and cannot form multiple hinge bodies at the same time.
It adopts a combination structure of feeding module, upper die and lower die, and uses square wave groove and front and rear split groove design to realize multiple stamping of metal plate through the cooperation of upper die and lower die to form multiple hinge bodies.
It improves the production efficiency of hinge bodies, enabling the simultaneous formation of multiple hinge bodies on a single metal plate, thus reducing production steps and time.
Smart Images
Figure CN223531245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold stamping technology, and in particular to a hinge stamping mold. Background Technology
[0002] Hinges are typically installed between the cabinet body and the cabinet door, or between the door frame and the door body, to achieve the hinged connection and enable the closing and opening actions. For example... Figure 1 As shown, existing hinge assemblies generally consist of two hinge bodies 1. These two hinge bodies 1 include a mounting part 11 and a hinge part 12. The hinge parts 12 of the two hinge bodies 1 are positioned complementaryly. That is, in the same hinge body 1, a gap 13 is formed between two adjacent hinge parts 12, which is just enough to accommodate one hinge part 12 of the other hinge body 1. In this way, after the two hinge bodies 1 are joined together, a hinge structure can be formed.
[0003] Existing hinge stamping dies typically stamp each hinge body 1 individually, one by one. After one hinge body 1 is formed and removed, the next hinge body 1 is formed, resulting in low production efficiency. Utility Model Content
[0004] In order to overcome the defects of the existing technology, this utility model provides a hinge stamping die to solve the above problems.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a hinge stamping die, including a feeding module, an upper die and a lower die, wherein the upper die and the lower die are connected by a guide lifting column; the feeding module is used to push the metal plate to be stamped multiple times to the rear side of the lower die at a rated frequency and a rated stroke;
[0006] The upper mold includes an upper base and an upper mold assembly disposed on the upper base. The upper mold assembly includes a square wave groove and front and rear split grooves. The square wave groove extends along the length direction of the upper base and is located on the central axis of the length direction of the upper base. The front and rear split grooves are symmetrical structures with the central axis as the axis of symmetry.
[0007] The lower die includes a lower base and a lower die assembly disposed on the lower base. The lower die assembly includes a square wave stamping part and a front and rear split stamping part. The square wave stamping part faces the square wave groove, and the front and rear split stamping part faces the front and rear split groove.
[0008] Preferably, the upper molding assembly further includes a first bending groove, which extends along the length direction of the upper base and is located on the central axis of the upper base along the length direction; the first bending groove is located on the rear side of the square wave groove, the square wave groove has a protrusion extending towards the central axis, and the distance between the inner part of the first bending groove and the central axis is greater than the distance between the end of the protrusion of the square wave groove and the central axis;
[0009] The lower die assembly further includes a first bending stamping part, which faces the first bending groove.
[0010] Optionally, the upper molding assembly further includes a second bending groove, which extends along the length direction of the upper base and is located on the central axis of the length direction of the upper base; the second bending groove is located on the rear side of the square wave groove, and the distance between the inner wall of the second bending groove and the central axis is greater than the distance between the inner wall of the first bending groove and the central axis.
[0011] The lower die assembly further includes a second bending stamping part, which faces the second bending groove.
[0012] Specifically, the upper mold assembly further includes a hinge forming block, which is disposed on the rear side of the second bending groove. The hinge forming block has an arc-shaped recess that extends along the length direction of the upper base.
[0013] It is worth noting that the upper die assembly also includes a mounting portion bending stamping part, which extends along the length direction of the upper base; the lower die assembly also includes a mounting portion bending groove, which faces the mounting portion bending stamping part.
[0014] Preferably, the upper die assembly further includes an anti-slip strip stamping part, which protrudes toward the lower die.
[0015] The beneficial effects of this utility model are as follows: In the hinge stamping die, by cooperating with the square wave groove and the square wave stamping part, the upper die presses down on the lower die, thus forming a square wave slit on the metal plate, thereby separating the metal plate in the left-right direction. The edge of the square wave slit consists of staggered protrusions and indentations. The protrusions can be bent to form a hinge part, and the indentations are used to separate two adjacent hinge parts, facilitating the insertion of the hinge part of another hinge part. After each time the upper die presses down on the lower die and then lifts up, the blanking module pushes the metal plate to be stamped to the rear of the lower die by a rated stroke. Then, through the front and rear splitting grooves and the front and rear splitting stamping parts, the upper die presses down on the lower die, thus forming a transverse slit in the left-right direction on the metal plate, thereby separating the metal plate in the front-back direction. In the front-back direction, multiple hinge bodies of the same shape can be formed, and in the left-right direction, a pair of hinge bodies with complementary hinge parts can be formed, thus forming multiple hinge bodies on a single metal plate, improving production efficiency. Attached Figure Description
[0016] Figure 1 This is an exploded view of the hinge assembly.
[0017] Figure 2 This is a schematic diagram of the upper mold in one embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the structure of the square wave groove in one embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of the structure of the hinge forming block and the mounting bending stamping part in one embodiment of the present invention;
[0020] Figure 5 This is a schematic diagram of the lower mold in one embodiment of the present invention;
[0021] Figure 6 for Figure 5 An enlarged schematic diagram of the dashed circle A;
[0022] Figure 7 for Figure 5 An enlarged schematic diagram of the dashed circle B;
[0023] Figure 8 for Figure 5 An enlarged schematic diagram of the dashed circle C;
[0024] Figure 9 This is a schematic diagram of the hinge stamping die in one embodiment of the present invention;
[0025] In the diagram: 1 Hinge body; 11 Mounting part; 12 Hinge joint; 13 Clearance; 14 Anti-slip strip; 2 Metal plate; 21 Square wave slit; 22 Protrusion; 3 Upper die; 31 Upper base; 32 Upper die assembly; 33 Square wave groove; 331 Protrusion; 34 Front and rear split groove; 35 First bending groove; 36 Second bending groove; 37 Hinge joint forming block; 371 Arc-shaped recess; 38 Mounting part bending stamping; 39 Anti-slip strip stamping; 4 Lower die; 41 Lower base; 42 Lower die assembly; 43 Square wave stamping; 44 Front and rear split stamping; 45 First bending stamping; 46 Second bending stamping; 47 Mounting part bending groove; 5 Guide lifting column; 51 Sleeve fitting; 52 Telescopic fitting; 6 Central axis. Detailed Implementation
[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0027] like Figure 1-9 As shown, a hinge stamping die includes a feeding module, an upper die 3, and a lower die 4, wherein the upper die 3 and the lower die 4 are connected by a guide lifting column 5; the feeding module is used to repeatedly push the metal plate 2 to be stamped to the rear side of the lower die 4 at a rated frequency and a rated stroke; in this embodiment, as... Figure 9 As shown, the guide lifting column 5 includes a sleeve 51 and a telescopic tube 52. The sleeve 51 is fitted onto the outer wall of the telescopic tube 52, and the telescopic tube 52 is movably connected to the sleeve 51 to achieve the purpose of telescopic movement. The sleeve 51 is connected to the upper mold 3, and the telescopic tube 52 is connected to the lower mold 4. The feeding module is preferably a robot. After the upper mold 3 presses down on the lower mold 4 and then lifts it up, the robot uses a gripper to pick up the metal plate 2 and move the metal plate 2 to the rear side of the lower mold 4. After moving the rated stroke, the metal plate 2 is then lowered into the lower mold 4.
[0028] like Figure 2 and 3 As shown, the upper mold 3 includes an upper base 31 and an upper mold assembly 32 disposed on the upper base 31. The upper mold assembly 32 includes a square wave groove 33 and front and rear split grooves 34. The square wave groove 33 extends along the length direction of the upper base 31 and is located on the central axis 6 of the length direction of the upper base 31. The front and rear split grooves 34 are symmetrical structures with the central axis 6 as the axis of symmetry.
[0029] like Figure 5 and 6As shown, the lower die 4 includes a lower base 41 and a lower die assembly 42 disposed on the lower base 41. The lower die assembly 42 includes a square wave stamping part 43 and a front and rear split stamping part 44. The square wave stamping part 43 faces the square wave groove 33, and the front and rear split stamping part 44 faces the front and rear split groove 34.
[0030] In the hinge stamping die, the square wave groove 33 cooperates with the square wave stamping part 43, and the upper die 3 presses down on the lower die 4 to form a square wave slit 21 on the metal plate 2, thereby separating the metal plate 2 in the left-right direction. The edge of the square wave slit 21 consists of staggered protrusions 22 and recesses. The protrusions 22 can be bent to form a hinge part 12, and the recesses are used to separate two adjacent hinge parts 12, facilitating the insertion of the hinge part 12 of another hinge piece. After each press of the upper die 3 on the lower die 4 and subsequent lifting, the square wave groove 33 is used to form a square wave slit 21 on the metal plate 2, thereby separating the metal plate 2 in the left-right direction. The blanking module pushes the metal plate 2 to be stamped to move to the rear side of the lower die 4 by a rated stroke. Then, through the front and rear splitting grooves 34 and the front and rear splitting stamping parts 44, the upper die 3 presses down on the lower die 4, which can form a transverse slit in the left and right direction on the metal plate 2, thereby separating the metal plate 2 in the front and back direction. In the front and back direction, multiple hinge bodies 1 with the same shape can be formed. In the left and right direction, a pair of hinge bodies 1 with complementary positions of hinge parts 12 can be formed, thereby forming multiple hinge bodies 1 on a metal plate 2, improving production efficiency.
[0031] Preferred, such as Figure 2 As shown, the upper molding assembly 32 further includes a first bending groove 35, which extends along the length direction of the upper base 31 and is located on the central axis 6 of the upper base 31 along its length. The first bending groove 35 is located behind the square wave groove 33, which has a protrusion 331 extending towards the central axis 6. The distance between the inner part of the first bending groove 35 and the central axis 6 is greater than the distance between the end of the protrusion 331 of the square wave groove 33 and the central axis 6. This ensures that the first bending groove 35 can contact the protrusion 22 at the edge of the square wave slot 21. Figure 5 and 7 As shown, the lower die assembly 42 further includes a first bending stamping part 45, which faces the first bending groove 35.
[0032] In this embodiment, the square wave groove 33 is composed of staggered protrusions 331 extending in the direction of the central axis 6 and recesses extending in the opposite direction of the central axis 6, thereby forming the inner wall of the square wave. By cooperating with the first bending groove 35 and the first bending stamping part 45, the protrusions 22 at the edge of the square wave slot 21 can be bent at a rated angle.
[0033] Optional, such as Figure 2 As shown, the upper die assembly 32 further includes a second bending groove 36, which extends along the length direction of the upper base 31 and is located on the central axis 6 of the upper base 31 along its length. The second bending groove 36 is located behind the square wave groove 33, and the distance between the inner wall of the second bending groove 36 and the central axis 6 is greater than the distance between the inner wall of the first bending groove 35 and the central axis 6. This ensures that the second bending groove 36 can contact the protrusion 22 at the edge of the square wave slit 21 after bending by the cooperation of the first bending groove 35 and the first bending stamping part 45. Figure 5 and 8 As shown, the lower die assembly 42 further includes a second bending stamping part 46, which faces the second bending groove 36.
[0034] To prevent the stamped part from breaking, multiple bends are used during bending to achieve a large angle. The second bending groove 36 and the second bending stamp 46 work together to further bend the protrusion 22 at the edge of the wave-shaped slit 21 after bending through the first bending groove 35 and the first bending stamp 45.
[0035] Specifically, such as Figure 2 and 4 As shown, the upper molding assembly 32 also includes a hinge forming block 37, which is disposed on the rear side of the second bending groove 36. The hinge forming block 37 has an arc-shaped recess 371 inside, which extends along the length direction of the upper base 31.
[0036] The arc-shaped recess 371 faces the protruding part 22 at the edge of the square wave slit 21 after being bent by the second bending groove 36 and the second bending stamping part 46. After the hinge forming block 37 presses down on the lower die 4, the arc-shaped recess 371 can be used to stamp the protruding part 22 at the edge of the square wave slit 21 into a cylindrical shape to form the hinge part 12. After the two hinge bodies 1 are joined together, the rotating shaft is inserted into the cylindrical hinge part 12 to complete the hinge.
[0037] It is worth noting that, such as Figure 2 and 4As shown, the upper die assembly 32 further includes a mounting portion bending stamping part 38, which extends along the length direction of the upper base 31; the lower die assembly 42 further includes a mounting portion bending groove 47, which faces the mounting portion bending stamping part 38. By cooperating with the mounting portion bending stamping part 38 and the mounting portion bending groove 47, the metal plate 2 is bent at the corresponding position to form the mounting portion 11 of the hinge body 1.
[0038] Specifically, such as Figure 2 , 5 As shown in Figure 7, the upper die assembly 32 also includes an anti-slip strip stamping part 39, which protrudes towards the lower die 4. By stamping the anti-slip strip stamping part 39 towards the lower die 4, an anti-slip strip 14 can be formed at the position of the metal plate 2. After the hinge body 1 is formed, the anti-slip strip 14 is distributed on the mounting part 11, and the anti-slip strip 14 plays an anti-slip role, increasing the friction between the mounting part 11 and the cabinet, cabinet door, door frame or door body.
[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A hinge stamping die, characterized in that: It includes a feeding module, an upper die, and a lower die, which are connected by a guide lifting column; the feeding module is used to push the metal plate to be stamped multiple times to the rear side of the lower die at a rated frequency and with a rated stroke. The upper mold includes an upper base and an upper mold assembly disposed on the upper base. The upper mold assembly includes a square wave groove and front and rear split grooves. The square wave groove extends along the length direction of the upper base and is located on the central axis of the length direction of the upper base. The front and rear split grooves are symmetrical structures with the central axis as the axis of symmetry. The lower die includes a lower base and a lower die assembly disposed on the lower base. The lower die assembly includes a square wave stamping part and a front and rear split stamping part. The square wave stamping part faces the square wave groove, and the front and rear split stamping part faces the front and rear split groove.
2. The hinge stamping die according to claim 1, characterized in that: The upper molding assembly further includes a first bending groove, which extends along the length direction of the upper base and is located on the central axis of the length direction of the upper base; the first bending groove is located on the rear side of the square wave groove, the square wave groove is provided with a protrusion extending towards the central axis, and the distance between the inner part of the first bending groove and the central axis is greater than the distance between the end of the protrusion of the square wave groove and the central axis; The lower die assembly further includes a first bending stamping part, which faces the first bending groove.
3. A hinge stamping die according to claim 2, characterized in that: The upper molding assembly further includes a second bending groove, which extends along the length direction of the upper base and is located on the central axis of the length direction of the upper base; the second bending groove is located on the rear side of the square wave groove, and the distance between the inner wall of the second bending groove and the central axis is greater than the distance between the inner wall of the first bending groove and the central axis. The lower die assembly further includes a second bending stamping part, which faces the second bending groove.
4. A hinge stamping die according to claim 3, characterized in that: The upper molding assembly further includes a hinge forming block, which is disposed on the rear side of the second bending groove. The hinge forming block has an arc-shaped recess that extends along the length direction of the upper base.
5. A hinge stamping die according to claim 1, characterized in that: The upper die assembly further includes a mounting portion bent stamping part, which extends along the length direction of the upper base; the lower die assembly further includes a mounting portion bending groove, which faces the mounting portion bent stamping part.
6. A hinge stamping die according to claim 1, characterized in that: The upper die assembly also includes an anti-slip strip stamping part, which protrudes toward the lower die.