A bending die

Abstract

The technical scheme belongs to the technical field of bending die and specifically relates to a bending die, which comprises an upper mounting plate, an upper die mechanism, a lower mounting plate and a lower die mechanism. The upper die mechanism comprises: an upper die which is slidingly arranged at the lower end of the upper mounting plate and is provided with a shaping part one, and the front end of the shaping part one is provided with an inclined surface one; and a reset assembly which is installed at the lower end of the upper mounting plate and is connected with the upper die. The lower die mechanism is provided with a shaping part two and a guide part, and the rear end of the shaping part two is provided with an inclined surface two corresponding to the inclined surface one. When the upper die mechanism moves towards the direction close to the lower die mechanism, the guide part abuts against the rear end of the upper die, guides the shaping part one to be close to the shaping part two, and makes the inclined surface one of the shaping part one and the inclined surface two of the shaping part two be able to bend the material by an angle greater than 90 degrees, so that the material can reach the set standard of being bent by 90 degrees after rebounding, and the product quality is ensured.

Description

Technical Field

[0001] This technical solution relates to the field of bending die technology, and specifically refers to a bending die. Background Technology

[0002] A bending die is a die used by a bending machine to bend metal materials. Under the pressure applied by the bending machine, it can bend the metal material placed inside into a specific shape.

[0003] Existing bending dies generally adopt a right-angle design, which can bend the edge of metal materials to 90 degrees. However, due to the springback characteristics of metal materials, stress changes will occur inside the metal during the bending process. When the external force is removed, the metal material will rebound due to elastic deformation. This results in the bending angle of metal materials after bending with a right-angle die often being greater than the preset 90 degrees, making it difficult to meet the angle accuracy requirements and affecting product quality and performance. Summary of the Invention

[0004] The purpose of this technical solution is to provide a bending die, which sets an inclined surface one on the upper die. Under the guidance of the guide part, the inclined surface one and the inclined surface two can bend the material on the shaping part two, so that the bending angle of the material is greater than 90 degrees. This improves the problem that when bending dies with a straight angle design bend metal materials, the bending angle does not meet the preset standard due to the springback characteristics of metal.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A bending die includes: an upper mounting plate; an upper die mechanism mounted on the lower end of the upper mounting plate; a lower mounting plate disposed below the upper mounting plate; and a lower die mechanism mounted on the upper end of the lower mounting plate for cooperating with the upper die mechanism to perform bending operations on materials. The upper die mechanism includes: an upper die slidably disposed on the lower end of the upper mounting plate, and the upper die having a first shaping part, the front end of which has an inclined surface; and a reset assembly mounted on the lower end of the upper mounting plate and connected to the upper die for driving the upper die to reset to its initial position. The lower die mechanism has a second shaping part and a guide part, the rear end of which has an inclined surface corresponding to the first inclined surface. When the upper die mechanism moves toward the lower die mechanism, the guide part abuts against the rear end of the upper die, guiding the first shaping part toward the second shaping part, so that the first inclined surface cooperates with the second inclined surface to perform bending operations on the material on the second shaping part.

[0007] Preferably, the angle α between the inclined surface two and the upper end surface of the shaping part two is less than 90 degrees.

[0008] Preferably, the inclined surface two and the upper end surface of the shaping part two are transitioned by an arc-shaped surface.

[0009] Preferably, the front end of the guide portion is provided with a guide surface one, which is inclined toward the upper end of the guide portion; the rear end of the upper mold is provided with a guide surface two, which cooperates with the guide surface one to guide the upper mold to move on the guide portion, so that the inclined surface one moves toward the direction of the inclined surface two.

[0010] Preferably, the reset assembly includes: at least one connecting rod slidably disposed on the upper mounting plate, with one end of the connecting rod connected to the upper mold and the other end having an anti-detachment portion; and a reset elastic member sleeved on the corresponding connecting rod, with both ends of the reset elastic member abutting against the anti-detachment portion and the upper mounting plate respectively, for driving the upper mold to reset to the initial position.

[0011] Preferably, the lower mold mechanism includes: a lower mold mounted on the lower mounting plate, and the lower mold is provided with the second shaping part; and a guide seat integrally formed or separately disposed at the rear end of the lower mold and located at the upper end of the lower mounting plate, the guide seat being provided with the guide part.

[0012] Preferably, the upper mounting plate is provided with a pressing mechanism, which includes a pressing component, which is movably disposed at the lower end of the upper mounting plate and located above the shaping part two, for pressing the material at the upper end of the shaping part two.

[0013] Preferably, the pressing mechanism further includes a pressing elastic element, the two ends of which are respectively connected to the upper mounting plate and the pressing element; when the pressing element presses against the material on the shaping part two, the pressing elastic element undergoes elastic deformation.

[0014] Preferably, the pressing component is provided with a limiting member; when the pressing component moves toward the direction close to the shaping part two, the limiting member abuts against the material located at the front end of the shaping part two to restrict the movement of the material.

[0015] Preferably, a relief groove is provided at the lower end of the shaping part, the relief groove being used to avoid the curling edge of the material.

[0016] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0017] 1. This technical solution achieves bending of materials by cooperating the shaping part one of the upper mold and the shaping part two of the lower mold mechanism. Under the guidance of the guide part, the inclined surface one of the shaping part one and the inclined surface two of the shaping part two can bend the material at an angle greater than 90 degrees, thereby achieving the set standard of bending 90 degrees after the material rebounds, ensuring product quality.

[0018] 2. This technical solution uses the guide surface one set in the guide part and the guide surface two set in the shaping part to cooperate to realize the bending and shaping of the material by the inclined surface one and the inclined surface two, which ensures the stability of the bending and shaping operation of the material by the shaping part one and the shaping part two. At the same time, the reset component drives the connecting rod to move through the reset elastic element to drive the upper mold to reset, ensuring the stability of the upward reset of the shaping part one.

[0019] 3. The pressing component of the pressing mechanism in this technical solution is designed to ensure that the material can be stably placed on the shaping part 2, so as to ensure that the material will not move during the bending operation and to ensure the quality of bending.

[0020] 4. This technical solution is designed to connect the pressure elastic element to the pressure element, thereby ensuring that the pressure of the pressure element against the material is not too great and will not damage the material. At the same time, when pressing materials of different thicknesses, the pressure elastic element ensures that the pressure applied by the pressure element can compress the material, avoiding the problem of material displacement during bending operations and resulting in bending quality not meeting the standards. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0022] Figure 2 This is a schematic diagram of the structure after the materials are placed in Example 1.

[0023] Figure 3 This is a schematic diagram of the upper mold mechanism and the pressing mechanism in Example 1.

[0024] Figure 4 This is a schematic diagram of the pressing mechanism when the upper mold mechanism and the limiting baffle are not installed in Example 1.

[0025] Figure 5 The following is a schematic diagram of the structure of the mold mechanism in an embodiment.

[0026] Figure 6 This is a cross-sectional view of Example 1.

[0027] Figure 7 This is a cross-sectional view of the upper mold mechanism bending the material in Example 1.

[0028] Figure 8 This is a cross-sectional view of the material after the upper mold mechanism bends it according to Example 1.

[0029] Figure 9 This is a cross-sectional view of the material after it has been bent and the upper die mechanism has returned to its initial position in Example 1.

[0030] Figure 10 This is a side view of the mold used in an embodiment.

[0031] Reference numerals: 1. Upper mounting plate; 11. Guide sleeve; 12. Sliding seat; 13. Sliding block; 14. Sliding groove; 15. Guide rod; 16. Guide groove; 161. Through hole;

[0032] 2. Upper mold mechanism;

[0033] 3. Lower mounting plate; 31. Guide post; 311. Boss; 32. Sliding sleeve; 33. Anti-detachment component; 34. Sliding sleeve spring; 35. Limiting block;

[0034] 4. Lower mold mechanism; 41. Lower mold; 411. Shaping part two; 412. Inclined surface two; 413. Arc-shaped surface; 414. Support part; 415. Clearance space; 42. Guide seat; 421. Guide part; 422. Guide surface one; 423. Guide hole; 424. Limiting groove;

[0035] 5. Upper mold; 51. Shaping part one; 511. Inclined surface one; 512. Guide surface two; 513. Clearance groove; 514. Slider;

[0036] 6. Reset assembly; 61. Connecting rod; 611. Anti-detachment part; 62. Reset elastic element;

[0037] 7. Pressing mechanism; 71. Pressing component; 72. Pressing elastic component; 73. Limiting component; 74. Guide connecting component; 741. Anti-detachment protrusion; 75. Limiting baffle;

[0038] 100. Materials. Detailed Implementation

[0039] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings. See also Figures 1-10 .

[0040] Example 1:

[0041] Combination Figures 1-5A bending die includes: an upper mounting plate 1, an upper die mechanism 2, a lower mounting plate 3, and a lower die mechanism 4; the upper mounting plate 1 is mounted on the frame of a bending machine (i.e., a bending machine), and the upper end of the upper mounting plate 1 is connected to the drive device of the bending machine, which drives the upper mounting plate 1 to move. The drive device is existing technology, such as a hydraulic cylinder, a linear cylinder, a linear motor, or an electric push rod; the upper die mechanism 2 is mounted on the lower end of the upper mounting plate 1; the lower mounting plate 3 is mounted on the frame of the bending machine and positioned below the upper mounting plate 1; the lower die mechanism 4 is mounted on the upper end of the lower mounting plate 3, and the material 100 placed on the lower die mechanism 4 is bent by the upper die mechanism 2 approaching the lower die mechanism 4. The material 100 is a metal sheet.

[0042] The upper mold mechanism 2 includes an upper mold 5 and a reset assembly 6. The upper mold 5 is slidably disposed at the lower end of the upper mounting plate 1, and the lower end of the upper mold 5 has a shaping part 51. The front end of the shaping part 51 has an inclined surface 511, which is inclined away from the lower end surface of the upper mold 5. The reset assembly 6 is installed at the lower end of the upper mounting plate 1 and connected to the upper mold 5. It is used to drive the upper mold 5 to reset to the initial position, that is, to drive the upper mold 5 to move to the set position. The lower mold mechanism 4 is provided with a shaping part 411 and a guide part 421. The rear end of the shaping part 411 is provided with an inclined surface 412 corresponding to the inclined surface 511. The shaping part 51 and the shaping part 411 are respectively pressed against the two sides of the material 100 to bend and shape the material 100. That is, the edge of the material 100 is pressed against the inclined surface 412 by the inclined surface 511 to bend and shape it.

[0043] Combination Figures 6-9 During operation, material 100 is first placed on the upper end of shaping part 2 411, with the edge of material 100 extending beyond the upper end of shaping part 2 411 and positioned below shaping part 1 51. At this time, when the upper mold mechanism 2 moves toward the direction of the lower mold mechanism 4, the lower front side of shaping part 1 51 abuts against the upper edge of material 100, causing material 100 to bend around shaping part 2 411. As the upper mold mechanism 2 moves further down, guide part 421 abuts against the rear end of upper mold 5, causing upper mold 5 to overcome the force of reset component 6 and move on upper mounting plate 1. Thus, guide part 421 guides shaping part 1 51 closer to shaping part 2 411, causing inclined surface 1 511 and inclined surface 2 412 to abut against the two sides of material 100, thereby realizing the bending operation of material 100 on shaping part 2 411.

[0044] like Figure 10As shown, the angle α between the plane where the inclined surface 412 is located and the upper end face of the shaping part 411 is less than 90 degrees and greater than or equal to 75 degrees. The angle α is preferably 82 degrees, so that the angle after the edge of the material 100 is bent and formed is less than 90 degrees, thereby achieving an angle of 90 degrees after the edge of the material 100 springs back. The angle α is adjusted according to the material of the material 100, that is, the angle α is adjusted according to the different springback characteristics of the material 100, so that the bent material 100 reaches 90 degrees after springback, which meets the production standard. When processing different types of material 100, it is necessary to set the corresponding inclination angle (angle α) according to the springback coefficient of the material 100. For materials with a larger springback coefficient after bending, the angle α is smaller.

[0045] Combination Figure 3 and Figure 4 Sliding blocks 13 are provided on both sides of the lower end of the upper mounting plate 1. A sliding groove 14 is formed between the sliding blocks 13 and the lower end of the upper mounting plate 1. Both ends of the upper mold 5 have sliders 514. The sliders 514 are slidably disposed in the sliding groove 14, thereby realizing that the upper mold 5 is slidably disposed at the lower end of the upper mounting plate 1.

[0046] like Figure 9 The inclined surface 412 and the upper end surface of the shaping part 411 are connected by an arc surface 413. The bending point of the material 100 is located at the upper end of the arc surface 413. The use of the arc surface 413 can reduce stress concentration and make the stress distribution more uniform, avoiding excessive stress concentration at a certain point, thereby reducing the risk of defects such as cracks and fractures in the material 100. At the same time, the arc surface 413 can reduce the sharp friction and extrusion between the material 100 and the lower die mechanism 4, making the surface of the material less damaged, thereby improving the surface quality of the material after bending, and also reducing the wear of the shaping part 411.

[0047] Combination Figures 6-9 The front end of the guide part 421 is provided with a guide surface 422, which is inclined towards the upper end of the guide part 421. The lower half of the rear end of the upper mold 5 is provided with a guide surface 512, which cooperates with the guide surface 422. When the lower end of the upper mold 5 abuts against the guide part 421, the guide surface 512 and the guide surface 422 can stick to each other and slide, thereby guiding the upper mold 5 to move on the guide part 421, so that the shaping part 51 moves closer to the shaping part 411, and the inclined surface 511 moves towards the inclined surface 412, thereby achieving the shaping of the material 100.

[0048] The front middle part of the guide part 421 is the guide surface 422, and the upper and lower parts of the front end of the guide part 421 are vertical surfaces, that is, the front end of the guide part 421 of the upper and lower parts of the guide surface 422 is a vertical plane.

[0049] Combination Figures 6-9 The reset assembly 6 includes at least one set of connecting rods 61 and a reset elastic element 62. A sliding seat 12 is provided at the lower end of the upper mounting plate 1. The connecting rods 61 are slidably mounted on the sliding seat 12 of the upper mounting plate 1, with one end extending out of the sliding seat 12 and threadedly connected, snap-fitted, or plugged into the upper mold 5. The other end of the connecting rod 61 has an anti-detachment part 611. The reset elastic element 62 is a spring or disc spring, sleeved on the connecting rods 61. Both ends of the reset elastic element 62 abut against the anti-detachment part 611 and the sliding seat 12 of the upper mounting plate 1, respectively, causing the anti-detachment part 611 to have a tendency to move away from the rear end of the sliding seat 12, thereby driving the upper mold 5 to reset to its initial position, so that the front end of the sliding seat 12 abuts against the rear end of the upper mold 5, thus achieving the reset of the upper mold 5. The mold 5 moves backward and resets; when the guide part 421 guides the upper mold 5, that is, when it guides the shaping part 1 51 to approach the shaping part 2 411, it is necessary to overcome the elastic force of the reset elastic member 62. When the upper mold 5 moves upward and away from the lower mold mechanism 4 to demold the material 100, the reset elastic member 62 drives the upper mold 5 to move backward, thereby avoiding the inclination surface 1 511 from abutting against the inclination surface 2 412 and thus preventing the upper mold 5 from moving upward, ensuring the stability of the upper mold 5 reset; at the same time, when the material 100 is demolded, the reset elastic member 62 of the reset assembly 6 can reduce the force of the inclination surface 1 511 pressing against the inclination surface 2 412, thereby preventing the lower front end of the shaping part 1 51 from scratching the surface of the material 100, and also preventing the edge of the material 100 from scratching the surface of the inclination surface 2 412.

[0050] When multiple sets of connecting rods 61 and reset elastic elements 62 are set, several connecting rods 61 are arranged and distributed along the length direction of the sliding seat 12 and connected to the upper mold 5. In this design, a connecting rod 61 is connected to both ends of the rear side of the upper mold 5.

[0051] When the reset elastic element 62 drives the upper mold 5 to reset to the initial position, that is, when the upper mold 5 is reset, the front end of the sliding seat 12 abuts against the rear end of the upper mold 5, thereby limiting the movement range of the upper mold 5.

[0052] like Figure 6 The sliding seat 12 is located above the guide seat 42, and the direction in which the upper mold 5 moves toward the lower mold 41 is the mold closing direction (in this embodiment, the direction of movement is...). Figure 6 For example, the downward movement direction of the upper mold 5 is the mold closing direction; the point closest to the lower end of the upper mold 5 on guide surface 2 512 is point A, i.e. Figure 6 Point A is the lowest point of guide surface 2 512, and point B is the point on guide surface 2 512 furthest from the lower end of upper mold 5. Figure 6Point B is the uppermost point of guide surface 2 512, and point C is the point furthest from the uppermost point of guide surface 1 422, which is the guide seat 42. Figure 6 Point C is the lowest point of the guide surface 422, and point D is the point on the guide surface 422 closest to the upper part of the guide seat 42. Figure 6 Point D is located at the top of the guide surface 422. When the upper mold 5 is in its initial position, the projection of point A onto the plane perpendicular to the mold closing direction (i.e., the position of point A's projection on this plane, and the subsequent descriptions of the projection positions of points B, C, and D) is located in front of the projection of point D onto the plane perpendicular to the mold closing direction, and the projection of point B onto the plane perpendicular to the mold closing direction is located behind the projection of point C onto the plane perpendicular to the mold closing direction. Therefore, when the upper mold 5 and the lower mold 41 are closed, i.e., when the upper mold 5 moves towards the lower mold 41, point A can be positioned on the guide surface 422. The guide surface 512 slides on the guide surface 422, which prevents the lower end of the upper mold 5 from hitting the upper end of the guide seat 42, thus preventing the guide surface 512 from sliding on the guide surface 422. This also prevents interference between the lower end of the upper mold 5 and the upper end of the guide seat 42, and ensures that the guide surface 512 can slide smoothly on the guide surface 422, thereby ensuring that the guide shaping part 51 can move close to the shaping part 411. In this design, when the upper mold 5 is in the initial position, the projection of point A on the plane perpendicular to the mold closing direction is located behind the projection of point C on the plane perpendicular to the mold closing direction.

[0053] Combination Figures 3-5 and Figure 8 At least one guide rod 15 is installed at the lower end of the upper mounting plate 1. The lower end of the guide rod 15 extends out of the lower end of the sliding seat 12. A guide hole 423 is provided on the guide seat 42. When the upper mounting plate 1 moves toward the lower mounting plate 3, the guide rod 15 is inserted into the guide hole 423 to achieve the guiding function and ensure the accuracy and stability of the upper mounting plate 1 when it moves.

[0054] Combination Figures 5-9 The lower mold mechanism 4 includes a lower mold 41 and a guide seat 42. Both the lower mold 41 and the guide seat 42 are installed on the upper end of the lower mounting plate 3, and the guide seat 42 is located at the rear end of the lower mold 41. The lower mold 41 and the guide seat 42 are integrally formed or separately designed. The upper front half of the lower mold 41 is provided with a shaping part 2 411, and the guide seat 42 is provided with a guide part 421, which is located behind the shaping part 2 411.

[0055] Combination Figures 5-7The lower mold mechanism 4 also includes at least one limiting block 35, which is installed on the upper end of the lower mounting plate 3. The rear end of the guide seat 42 is provided with at least one limiting groove 424 corresponding to the limiting block 35. The front end of the limiting block 35 is inserted into the limiting groove 424 and abuts against the side wall of the limiting groove 424 to prevent the guide seat 42 from moving on the upper end of the lower mounting plate 3, thereby ensuring the stability of the guide seat 42 installation.

[0056] To ensure the stability of the material 100 placed on the upper shaping section 411, a pressing mechanism 7 is provided at the lower end of the upper mounting plate 1. The pressing mechanism 7 is located above the shaping section 411 and includes a pressing component 71, which is movably disposed at the lower end of the upper mounting plate 1 and located above the shaping section 411. The pressing component 71 can move up and down at the lower end of the upper mounting plate 1 to press against the upper end of the material 100 and press the lower end of the material 100 tightly against the upper end of the shaping section 411, preventing the material 100 from moving up and down on the shaping section 411 and preventing movement during bending operations. This ensures the quality of the bent product and eliminates the need for manual pressing of the material 100 against the upper end of the shaping section 411, saving manpower and improving safety and accuracy.

[0057] Combination Figures 6-9 The pressing mechanism 7 also includes a pressing elastic element 72, which is a spring, a rubber component, or a silicone component. The two ends of the pressing elastic element 72 are respectively connected to the mounting plate 1 and the pressing element 71. When the pressing element 71 presses against the material 100 on the shaping part 411, the pressing elastic element 72 undergoes elastic deformation and contracts, thereby ensuring that the pressure of the pressing element 71 against the material 100 is not too great and will damage the material 100. At the same time, when pressing materials 100 of different thicknesses, the pressing elastic element 72 can ensure that the pressure applied by the pressing element 71 can press the material 100 tightly, thus ensuring the accuracy and stability of the pressure.

[0058] The pressing mechanism 7 also includes: a guide connector 74, which is a bolt or pin, slidably mounted on the upper mounting plate 1, and the lower end of the guide connector 74 extends out of the lower end of the upper mounting plate 1 and is threaded, plugged, glued, or interference-fitted to the pressing component 71; when the guide connector 74 is used, the pressing elastic element 72 makes the pressing component 71 tend to move away from the upper mounting plate 1; a guide groove 16 is provided in the upper mounting plate 1, and a through hole 161 is provided at the bottom of the guide groove 16; an anti-detachment protrusion 741 is provided at the upper end of the guide connector 74; the guide connector 74 is slidably mounted in the guide groove 16, and the lower end of the guide connector 74 extends out of the guide groove 16 through the through hole 161 and is connected to the pressing component 71; the pressing component 71 is slidably mounted at the lower end of the upper mounting plate 1 through the guide connector 74.

[0059] The pressing mechanism 7 also includes a limiting baffle 75, which is installed at the lower end of the upper mounting plate 1. The limiting baffle 75 abuts against the front end of the pressing member 71 to limit the forward and backward movement of the pressing member 71.

[0060] A limiting member 73 is provided on the front side of the lower end of the pressing member 71. When the pressing member 71 moves toward the shaping part 2 411, the rear end of the limiting member 73 presses against the material 100 located at the front end of the shaping part 2 411, so that the material 100 can fit against the front end of the shaping part 2 411, thereby restricting the forward and backward movement of the material 100 on the shaping part 2 411. This prevents the bending area from changing due to the movement of the material when the shaping part 1 51 presses down on the material 100, and ensures the quality of the material after bending.

[0061] The shaping part 411 is provided with a support part 414. The upper end of the support part 414 and the lower end of the pressing member 71 limit and fix the material 100 in the vertical direction. The front end of the support part 414 and the rear end of the limiting member 73 limit and fix the material 100 in the front-back direction.

[0062] When the rear end of the limiting member 73 presses against the material 100 located at the front end of the shaping part 2 411, the limiting baffle 75 abuts against the front end of the limiting member 73 to restrict the movement of the limiting member 73, ensuring the force of the limiting member 73 pressing against the material 100, thereby ensuring the stability of pressing the material.

[0063] like Figure 8 The upper mounting plate 1 is provided with at least one guide sleeve 11, and the lower mounting plate 3 is provided with at least one guide post 31 corresponding to the guide sleeve 11. When the upper mounting plate 1 moves toward the direction of the lower mounting plate 3, the guide post 31 slides inside the guide sleeve 11 to position the upper mounting plate 1 and the lower mounting plate 3, ensuring the accuracy of the movement of the upper mounting plate 1. Alternatively, a sliding sleeve 32 is provided on the upper end of the guide post 31, and an anti-detachment member 33 is connected to the upper end of the guide post 31. The anti-detachment member 33 moves against the upper end of the sliding sleeve 32 to limit the sliding sleeve 32 from detaching from the upper end of the guide post 31. A sliding sleeve spring 34 is provided on the guide post 31. The upper end of the sliding sleeve spring 34 moves against the lower end of the sliding sleeve 32, and the lower end of the sliding sleeve spring 34 moves against the boss 311 on the upper end of the lower mounting plate 3 or the lower end side wall of the guide post 31, so that the sliding sleeve 32 has a tendency to move away from the lower end of the guide post 31.

[0064] A clearance groove 513 is provided in the lower front half of the shaping part 51. The side wall of the clearance groove 513 is inclined towards its opening. The clearance groove 513 is used to avoid the edge warping of the material 100. The material 100 will have warping after the edge is cut during production. Therefore, it needs to be avoided by the clearance groove 513. This allows the lower front side of the shaping part 51 to first abut against the material 100 and cooperate with the upper rear side of the shaping part 411 to bend the material 100. Since when the lower end of the shaping part 51 is flat, the lower end of the shaping part 51 will directly press against the edge warping of the material 100, which will cause the bending position of the material 100 to deviate and affect the bending effect. Therefore, the clearance groove 513 needs to be designed.

[0065] The front end of the lower mold 41 and the front end of the shaping part 2 411 protrude from the front end of the lower mounting plate 3, and the front end of the lower mold 41 and the front end of the shaping part 2 411 form a clearance space 415 to allow the material 100 to pass through, so as to facilitate the rotation or movement of the material 100, thereby facilitating the removal of the bent and shaped material 100 from the upper end of the shaping part 2 411 to achieve demolding and unloading operations.

[0066] The specific working process of this plan is as follows: Figure 6 First, place the material 100 on the upper end of the shaping part 2 411, and make the edge of the material 100 extend out of the upper end of the shaping part 2 411 and be placed below the shaping part 1 51. Then, by moving the upper mold mechanism 2 toward the direction of the lower mold mechanism 4, that is, when the upper mold 5 of the upper mold mechanism 2 approaches the lower mold 41 to close the mold, the front side of the lower end of the shaping part 1 51 abuts against the upper end of the edge of the material 100, and the raised edge of the material 100 is placed in the relief groove 513.

[0067] like Figure 7 When the upper mold 5 moves further along the mold closing direction to close the mold, the pressure elastic member 72 causes the pressure member 71 to press the material 100 against the upper end of the support part 414 through elastic deformation, and the limiting member 73 presses the material 100 against the front end of the support part 414. The shaping part 1 51 causes the part of the material 100 that extends out of the shaping part 2 411 to be initially bent around the shaping part 2 411.

[0068] like Figure 8As the upper mold 5 moves further down to close, the guide part 421 abuts against the rear end of the upper mold 5, causing the guide surface 512 to slide on the guide surface 422. This allows the upper mold 5 to overcome the force of the reset component 6 and move on the upper mounting plate 1, causing the shaping part 51 to approach the shaping part 411. Consequently, the inclined surface 511 and the inclined surface 412 abut against the two sides of the material 100, thereby achieving the bending operation of the material 100 on the shaping part 411. This ensures that the material 100 is attached to the shaping part 411, achieving the bending and shaping of the material 100. A reserved space is left between the lower end of the upper mold 5 and the upper end of the lower mold 41, which can adapt to bending materials 100 with different edge lengths.

[0069] like Figure 9 After the bending operation is completed, the upper mounting plate 1 moves away from the lower mounting plate 3, that is, moves in the opposite direction of the mold closing direction to reset, so that the upper mold mechanism 2 and the pressing mechanism 7 move upward, and the upper mold 5 is reset to the initial position under the action of the reset component. After the material 100 loses the pressure applied by the shaping part 51, it rebounds to 90 degrees through the rebound characteristics of the material itself.

[0070] Example 2:

[0071] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0072] The upper mounting plate 1 no longer has sliding blocks 13 on both sides of its lower end, and the upper mold 5 no longer has sliders 514 at both ends. The upper mold 5 is slidably mounted on the sliding seat 12 by the connecting rod 61 to achieve the sliding mounting plate 1's lower end.

[0073] Example 3:

[0074] The design scheme of this embodiment is basically the same as that of Embodiment 1, except that:

[0075] Without the need for a guide connector 74, the pressing component 71 is movably connected to the lower end of the upper mounting plate 1 via the pressing elastic component 72. Through the elastic deformation of the pressing elastic component 72, the position of the pressing component 71 at the lower end of the upper mounting plate 1 can be adjusted, thereby adapting to the pressing operation of materials of different thicknesses on the shaping part 2 411, ensuring that the material is pressed on the shaping part 2 411, and at the same time ensuring the stability of the rear end of the limiting component 73 pressing against the material 100 located at the front end of the shaping part 2 411.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

[0077] It should be noted that the structures, proportions, and sizes depicted in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this technical solution and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this technical solution, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "above," "below," "front," "back," and "one" used in this specification are merely for clarity and not intended to limit the scope of implementation of this technical solution. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the implementable technical solution.

Claims

1. A bending die, characterized in that, include: Upper mounting plate (1); The upper mold mechanism (2) is installed at the lower end of the upper mounting plate (1); The lower mounting plate (3) is disposed below the upper mounting plate (1); and The lower mold mechanism (4) is installed on the upper end of the lower mounting plate (3) and is used to cooperate with the upper mold mechanism (2) to bend the material (100); The upper mold mechanism (2) includes: An upper mold (5) is slidably disposed at the lower end of the upper mounting plate (1), and the upper mold (5) is provided with a shaping part (51), the front end of which is provided with an inclined surface (511); and A reset assembly (6) is installed at the lower end of the upper mounting plate (1) and connected to the upper mold (5) for driving the upper mold (5) to reset to the initial position; The lower mold mechanism (4) is provided with a shaping part two (411) and a guide part (421). The rear end of the shaping part two (411) is provided with an inclined surface two (412) corresponding to the inclined surface one (511). When the upper mold mechanism (2) moves toward the lower mold mechanism (4), the guide part (421) abuts against the rear end of the upper mold (5), guiding the first shaping part (51) to approach the second shaping part (411), so that the first inclined surface (511) cooperates with the second inclined surface (412) to perform bending operation on the material (100) on the second shaping part (411).

2. A bending die according to claim 1, characterized in that: The included angle α between the inclined surface 2 (412) and the upper end surface of the shaping part 2 (411) is less than 90 degrees.

3. A bending die according to claim 2, characterized in that: The inclined surface 2 (412) and the upper end surface of the shaping part 2 (411) are connected by an arc-shaped surface (413).

4. A bending die according to claim 1, characterized in that: The front end of the guide part (421) is provided with a guide surface (422), which is inclined toward the upper end of the guide part (421). The upper mold (5) has a guide surface two (512) at its rear end. The guide surface two (512) cooperates with the guide surface one (422) to guide the upper mold (5) to move on the guide part (421), so that the inclined surface one (511) moves toward the inclined surface two (412).

5. A bending die according to claim 1, characterized in that: The reset component (6) includes: At least one connecting rod (61) is slidably disposed on the upper mounting plate (1), and one end of the connecting rod (61) is connected to the upper mold (5), and the other end has an anti-detachment part (611); and A reset elastic element (62) is sleeved on the corresponding connecting rod (61), and the two ends of the reset elastic element (62) abut against the anti-detachment part (611) and the upper mounting plate (1) respectively, for driving the upper mold (5) to reset to the initial position.

6. A bending die according to claim 1, characterized in that: The lower mold mechanism (4) includes: A lower mold (41) is mounted on the lower mounting plate (3), and the lower mold (41) is provided with the shaping part two (411); and The guide seat (42) is integrally formed or separately disposed at the rear end of the lower mold (41) and located at the upper end of the lower mounting plate (3). The guide seat (42) is provided with the guide part (421).

7. A bending die according to any one of claims 1-6, characterized in that: The upper mounting plate (1) is provided with a pressing mechanism (7), the pressing mechanism (7) includes: The pressing component (71) is movably disposed at the lower end of the upper mounting plate (1) and above the shaping part two (411), and is used to press the material (100) at the upper end of the shaping part two (411).

8. A bending die according to claim 7, characterized in that: The pressing mechanism (7) further includes: A pressure elastic element (72) is connected at both ends to the upper mounting plate (1) and the pressure element (71); When the pressing member (71) presses against the material (100) on the shaping part (411), the pressing elastic member (72) undergoes elastic deformation.

9. A bending die according to claim 7, characterized in that: The pressing component (71) is provided with a limiting component (73); When the pressing member (71) moves toward the shaping part 2 (411), the limiting member (73) abuts against the material (100) located at the front end of the shaping part 2 (411) to restrict the movement of the material (100).

10. A bending die according to claim 1, characterized in that: The lower end of the shaping part (51) is provided with a relief groove (513), which is used to avoid the curling edge of the material (100).

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