Forming die for bending safety box side plate

Abstract

The invention relates to the technical field of sideboard bending, and particularly discloses a forming die for bending a sideboard of a safety box, which comprises an upper die holder and a lower die holder under the upper die holder, an upper die fixing block is fixedly connected to the lower end of the upper die holder, and upper dies are arranged on the left side and the right side of the upper die fixing block; lower die fixing parts are arranged on the left side and the right side of the upper portion of the lower die base, lower dies are arranged at the upper ends of the lower die fixing parts, an auxiliary stripping mechanism is arranged at the position, located between the lower die fixing parts, of the upper end of the lower die base, the auxiliary stripping mechanism is used for assisting in demolding of a bent side plate, and auxiliary edge folding mechanisms are arranged on the left side and the right side of the upper end of the lower die base. Through mutual cooperation of the upper die and the lower die, the two sides of the side plate can be bent at the same time, and therefore the problems that in the side plate bending process, the two sides of the side plate need to be operated separately, the bending frequency is increased, and the whole process is more time-consuming are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of side plate bending, and in particular relates to a forming die for bending a side plate of a safe. Background Art

[0002] The bending machine mold is a tool used to process sheet metal. It consists of multiple parts, and the parts of different molds are different. It shapes the workpiece by changing the physical state of the material. Under the pressure of the bending machine, the upper die and the lower die interact to turn the blank into a workpiece with a specific shape and size. Companies will choose lower dies at different angles according to the shape or size of different workpieces. As the shape of workpieces tends to be diversified and complex, multiple bends are sometimes required. For example, in the safe industry, the door frame side panel bending parts need to be bent three times to form a symmetrical shape. The bending sections are A, B, and C, where A is at a 90° angle with the plate surface, B is at a 90° angle with A, and C is at a 270° angle with B.

[0003] In the Chinese patent with announcement number CN107999625B, a method for using and processing a one-time forming mold for the side panels of a safe is mentioned, which belongs to the field of mold design. The method for using the mold is: first assemble the upper mold assembly and the lower mold assembly; then fix the lower mold assembly to the workbench of the hydraulic press; then, hoist the upper mold assembly to the lower mold assembly, and make their stamping groove surfaces fit tightly; then, fix the upper mold assembly to the slide of the hydraulic press; finally, the upper mold assembly bends the workpiece on the lower mold. The method for using the mold can quickly and efficiently process the side panels of the safe, with high bending efficiency and good quality of the finished product. The processing method of the mold is used to process the upper and lower molds, first forging, then processing into the shape of each component, then fine grinding, and finally assembling. A special heat treatment process is used to make the mold hardness, toughness and wear resistance meet the process requirements, and the mold is still normal after more than 10,000 times of processing and use, and has a long service life.

[0004] However, in the process of bending the side plates in the above patent, both sides of the side plates need to be operated separately, which not only increases the number of bending times, but also makes the whole process more time-consuming and increases the labor intensity. Summary of the invention

[0005] The purpose of the present invention is to provide a forming mold for bending the side panels of a safe, so as to solve the problem in the prior art that in the process of bending the side panels, it is necessary to operate on both sides of the side panels separately, which not only increases the number of bending times but also makes the whole process more time-consuming.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A forming die for bending a side panel of a safe comprises an upper die seat and a lower die seat directly below the upper die seat, wherein an upper die fixing block is fixedly connected to the lower end of the upper die seat, upper die are arranged on both sides of the upper die fixing block, lower die fixing parts are arranged on both sides above the lower die seat, a lower die is arranged on the upper end of the lower die fixing parts, an auxiliary stripping mechanism is arranged on the upper end of the lower die seat between the lower die fixing parts, the auxiliary stripping mechanism is used for assisting in stripping the side panel after bending, and auxiliary folding mechanisms are arranged on both sides of the upper end of the lower die seat, the auxiliary folding mechanisms are used for performing secondary bending on both sides of the side panel that has been bent.

[0008] Preferably, the upper mold is fixedly connected to the upper mold on both left and right sides of the upper mold fixing block by bolts, and the rack is fixedly connected to the left and right sides of the rear end of the upper mold fixing block by bolts.

[0009] Preferably: the lower mold fixing component includes a fixing rod and a limit block, the front and rear sides of the upper end of the lower mold base are fixedly connected to the fixing rod, the upper side wall of the fixing rod is fixedly connected to the limit block, the side of the limit block away from the auxiliary stripping mechanism is fixedly connected to the first spring, and the lower mold is arranged between the front and rear limit blocks.

[0010] Preferably, a second inclined surface is provided on an adjacent end surface of the two groups of lower molds, and limiting grooves are provided on both the front and rear end surfaces of the lower molds, and the limiting blocks are located inside the limiting grooves and are slidably connected thereto.

[0011] Preferably: the lower end of the lower mold away from the second inclined surface is fixedly connected with a protrusion by bolts, the front and rear ends of the lower mold are fixedly connected with mounting blocks, the mounting blocks are colinear with the limiting groove, and one side of the mounting block is fixedly connected to an end of the first spring away from the limiting block.

[0012] Preferably: the auxiliary stripping mechanism includes a hydraulic cylinder and a movable plate, the hydraulic cylinder is fixedly connected to the inside of the lower die base, the upper end of the hydraulic cylinder penetrates to the upper end of the lower die base, and the movable plate is slidably connected between the side walls of the fixed rod located on both sides of the lower die base, and the lower end of the movable plate is in contact with the output shaft end of the hydraulic cylinder.

[0013] Preferably, a top block is fixedly connected to the upper end of the movable plate, and first inclined surfaces are provided at the upper ends of the left and right sides of the top block, and the first inclined surface and the second inclined surface abut against each other.

[0014] Preferably, a second spring is sleeved on a side wall of the fixed rod located at the upper end of the movable plate, an upper end of the second spring is fixedly connected to a lower end of the limit block, and a lower end of the second spring is fixedly connected to an upper end of the movable plate.

[0015] Preferably: the auxiliary folding mechanism includes an incomplete gear and a bending block, the upper end of the lower die seat is rotatably connected to a rotating shaft through a bearing seat, the side wall of the rotating shaft is fixedly connected to a connecting rod, the end of the connecting rod away from the rotating shaft is fixedly connected to the bending block, the rear end of the rotating shaft is fixedly connected to an incomplete gear, and the incomplete gear cooperates with the gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can simultaneously bend both sides of the side plate through the cooperation of the upper mold and the lower mold, thereby solving the problem that in the process of bending the side plate, it is necessary to operate the two sides of the side plate separately, which not only increases the number of bending times but also makes the whole process more time-consuming.

[0018] 2. The present invention realizes the gathering of the lower mold toward the center after the side plate is bent through the cooperation of the auxiliary stripping mechanism and the lower mold fixing component, so that the lower mold can be smoothly detached from both sides of the bent side plate, thereby achieving the purpose of demoulding.

[0019] 3. The present invention uses bolts to fix the rack to the upper mold fixing block and the protrusion to the lower mold. The rack and the protrusion can be quickly disassembled by rotating the bolts. In this way, when the side plate is bent, the bending times and shapes can be adjusted to achieve diversified bending methods of the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The side panel molding of the safe that needs to be processed;

[0021] Figure 2 It is a schematic diagram of the overall main structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the main plan view structure of the upper mold of the present invention;

[0023] Figure 4 This is a schematic diagram of the main plane structure of the auxiliary stripping mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 4 The enlarged structural diagram of part A in the middle;

[0025] Figure 6 It is a schematic diagram of the exploded structure of the lower mold and the lower mold fixing component of the present invention;

[0026] Figure 7 It is a schematic diagram of the auxiliary stripping mechanism state when the mold of the present invention starts to bend;

[0027] Figure 8 It is a schematic diagram of the state structure of the mold of the present invention when it completes bending;

[0028] Fig. 9 It is a schematic diagram of the state structure of the mold after demoulding of the present invention.

[0029] In the figure: 1. upper die seat; 2. upper die fixing block; 3. upper die; 4. rack; 5. lower die seat; 6. lower die fixing part; 61. fixing rod; 62. limiting block; 63. first spring; 7. auxiliary stripping mechanism; 71. hydraulic cylinder; 72. moving plate; 73. top block; 731. first inclined surface; 74. second spring; 8. auxiliary folding mechanism; 81. rotating shaft; 82. incomplete gear; 83. connecting rod; 84. bending block; 9. lower die; 91. mounting block; 92. second inclined surface; 93. protrusion; 94. limiting groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 9 As shown, the present invention provides a forming mold for bending the side panels of a safe, comprising an upper mold base 1 and a lower mold base 5 directly below the upper mold base 1, wherein the lower end of the upper mold base 1 is fixedly connected to an upper mold fixing block 2, upper molds 3 are arranged on both sides of the upper mold fixing block 2, lower mold fixing parts 6 are arranged on both sides above the lower mold base 5, a lower mold 9 is arranged on the upper end of the lower mold fixing parts 6, an auxiliary stripping mechanism 7 is arranged on the upper end of the lower mold base 5 located between the lower mold fixing parts 6, and the auxiliary stripping mechanism 7 is used to assist in demolding the bent side panels, and auxiliary folding mechanisms 8 are arranged on both sides of the upper end of the lower mold base 5, and the auxiliary folding mechanisms 8 are used to fold the bent side panels. The two sides of the side plate are bent twice; during operation, the upper mold 3 and the lower mold 9 are cooperated with each other, so that the two sides of the side plate are bent at the same time. At the same time, the auxiliary folding mechanism 8 cooperates with each other, so that the side plate is bent again, thereby solving the problem that in the process of bending the side plate, the two sides of the side plate need to be operated separately, which not only increases the number of bending times, but also makes the whole process more time-consuming. After the side plate is bent, the lower mold 9 is moved closer to the middle with the cooperation of the auxiliary stripping mechanism 7, so that the bending positions on both sides of the side plate are separated from the lower mold 9, thereby achieving the demoulding effect.

[0032] In a further embodiment, referring to Figure 2-Figure 3 The upper mold fixing block 2 is fixedly connected to the upper mold 3 on both sides by bolts, and the rack 4 is fixedly connected to the left and right sides of the rear end of the upper mold fixing block 2 by bolts.

[0033] In this embodiment, the upper mold 3 and the rack 4 are fixed to the upper mold fixing block 2 by bolts, so that the upper mold 3 and the rack 4 can be disassembled and inspected by rotating the bolts to prevent damage caused by long-term use.

[0034] In a further embodiment, referring to Figure 4 and Figure 6 The lower mold fixing component 6 includes a fixing rod 61 and a limit block 62. The front and rear sides of the upper end of the lower mold base 5 are fixedly connected to the fixing rod 61. The upper side wall of the fixing rod 61 is fixedly connected to the limit block 62. The side of the limit block 62 away from the auxiliary stripping mechanism 7 is fixedly connected with a first spring 63. A lower mold 9 is arranged between the front and rear limit blocks 62. The adjacent end surfaces of the two groups of lower molds 9 are provided with a second inclined surface 92. The front and rear end surfaces of the lower mold 9 are provided with limit grooves 94. The limit block 62 is located inside the limit groove 94 and is slidably connected thereto.

[0035] In this embodiment, before bending the side panel, it is necessary to start the auxiliary stripping mechanism 7 first to drive the lower mold 9 to move to the left and right sides so that it can cooperate with the upper mold 3 to bend the side panel; a protrusion 93 is fixed at the lower end of the lower mold 9 by bolts, and this protrusion 93 can be used as a cushion block after the side panel completes the first bending; with the cooperation of the auxiliary folding mechanism 8, the two ends of the side panel can be bent again, and finally the folding process of the entire side panel is completed.

[0036] In a further embodiment, referring to Figure 7-Figure 9 The auxiliary stripping mechanism 7 includes a hydraulic cylinder 71 and a movable plate 72. The hydraulic cylinder 71 is fixedly connected to the inside of the lower die base 5. The upper end of the hydraulic cylinder 71 penetrates the upper end of the lower die base 5. The movable plate 72 is slidably connected between the side walls of the fixed rod 61 on both sides of the lower die base 5. The lower end of the movable plate 72 abuts against the output shaft end of the hydraulic cylinder 71. The upper end of the movable plate 72 is fixedly connected to a top block 73. The upper ends of the left and right sides of the top block 73 are provided with a first inclined surface 731. The first inclined surface 731 abuts against the second inclined surface 92. The side wall of the fixed rod 61 located at the upper end of the movable plate 72 is sleeved with a second spring 74. The upper end of the second spring 74 is fixedly connected to the lower end of the limit block 62, and the lower end of the second spring 74 is fixedly connected to the upper end of the movable plate 72.

[0037] In this embodiment, before bending the side plate, it is necessary to start the hydraulic cylinder 71 first so that its output shaft extends outward, thereby pushing the movable plate 72 to move upward. The rise of the movable plate 72 will drive the top block 73 upward and compress the second spring 74 at the same time. When the top block 73 rises, the first inclined surface 731 abuts against the second inclined surface 92, which will cause the lower mold 9 to move to both sides. At this time, the first spring 63 is stretched under the force, so that the left and right ends of the top block 73 contact the end surface of the lower mold 9. In this way, the lower mold 9 can cooperate with the upper mold 3 to bend the side plate.

[0038] After the bending is completed, the hydraulic cylinder 71 is started to retract the output shaft into the cylinder, and the movable plate 72 moves downward under the action of the second spring 74, driving the top block 73 to descend; at this time, the lower mold 9 will break away from the contact with the side wall of the top block 73, and at the same time the first spring 63 returns to its original state, pushing the lower mold 9 to move closer to the middle, so that the two ends of the side plate are separated from the lower mold 9, achieving the demoulding effect.

[0039] In a further embodiment, referring to Figure 4-Figure 5 The auxiliary folding mechanism 8 includes an incomplete gear 82 and a bending block 84. The upper end of the lower die base 5 is rotatably connected to the rotating shaft 81 through a bearing seat. The side wall of the rotating shaft 81 is fixedly connected to a connecting rod 83. The end of the connecting rod 83 away from the rotating shaft 81 is fixedly connected to the bending block 84. The rear end of the rotating shaft 81 is fixedly connected to an incomplete gear 82, and the incomplete gear 82 cooperates with the gear.

[0040] In this embodiment, when the upper mold fixing block 2 moves downward to perform the initial bending of the side plate, the gear will mesh with the incomplete gear 82. As the upper mold fixing block 2 continues to move downward, the rack 4 moves accordingly. The movement of the rack 4 will drive the incomplete gear 82 to rotate. This rotation is transmitted to the rotating shaft 81, causing it to rotate, thereby driving the connecting rod 83 to move. The movement of the connecting rod 83 causes the bending block 84 to move accordingly, so that the moved bending block 84 acts on the two ends of the side plate after the initial bending, thereby achieving re-bending of the two ends of the side plate, thereby completing the bending process on both sides of the side plate.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forming die for bending a side plate of a safe, comprising an upper die seat (1) and a lower die seat (5) directly below the upper die seat (1), characterized in that: The lower end of the upper die seat (1) is fixedly connected to an upper die fixing block (2), and upper dies (3) are arranged on both sides of the upper die fixing block (2). Lower die fixing parts (6) are arranged on both sides above the lower die seat (5), and a lower die (9) is arranged on the upper end of the lower die fixing parts (6). An auxiliary stripping mechanism (7) is arranged on the upper end of the lower die seat (5) between the lower die fixing parts (6), and the auxiliary stripping mechanism (7) is used to assist in stripping the side plate after bending. Auxiliary folding mechanisms (8) are arranged on both sides of the upper end of the lower die seat (5), and the auxiliary folding mechanisms (8) are used to perform secondary bending on both sides of the bent side plate.

2. A forming die for bending a side plate of a safe according to claim 1, characterized in that: The upper mold fixing block (2) is fixedly connected to the upper mold (3) on both sides via bolts, and the rear end of the upper mold fixing block (2) is fixedly connected to the rack (4) on both sides via bolts.

3. The forming die for bending the side plate of a safe according to claim 1, characterized in that: The lower die fixing component (6) comprises a fixing rod (61) and a limiting block (62); the fixing rod (61) is fixedly connected to the front and rear sides of the upper end of the lower die base (5); the limiting block (62) is fixedly connected to the upper side wall of the fixing rod (61); a first spring (63) is fixedly connected to the side of the limiting block (62) away from the auxiliary stripping mechanism (7); and the lower die (9) is arranged between the front and rear limiting blocks (62).

4. A forming die for bending a side plate of a safe according to claim 3, characterized in that: A second inclined surface (92) is provided on an adjacent end surface of the two groups of lower molds (9), and limiting grooves (94) are provided on both the front and rear end surfaces of the lower mold (9), and the limiting block (62) is located inside the limiting groove (94) and is slidably connected thereto.

5. The forming die for bending the side plate of a safe according to claim 3, characterized in that: A protrusion (93) is fixedly connected to the lower end of the lower mold (9) away from the second inclined surface (92) by means of bolts, and mounting blocks (91) are fixedly connected to both the front and rear ends of the lower mold (9), the mounting block (91) is colinear with the limiting groove (94), and one side of the mounting block (91) is fixedly connected to an end of the first spring (63) away from the limiting block (62).

6. The forming die for bending the side plate of a safe according to claim 1, characterized in that: The auxiliary stripping mechanism (7) comprises a hydraulic cylinder (71) and a movable plate (72); the hydraulic cylinder (71) is fixedly connected inside the lower die base (5); the upper end of the hydraulic cylinder (71) penetrates the upper end of the lower die base (5); the movable plate (72) is slidably connected between the side walls of the fixed rod (61) on both sides of the lower die base (5); the lower end of the movable plate (72) is in contact with the output shaft end of the hydraulic cylinder (71).

7. A forming die for bending a side plate of a safe according to claim 6, characterized in that: The upper end of the movable plate (72) is fixedly connected to a top block (73), and the upper ends of the left and right sides of the top block (73) are provided with first inclined surfaces (731), and the first inclined surfaces (731) and the second inclined surfaces (92) are in contact with each other.

8. The forming die for bending the side plate of a safe according to claim 6, characterized in that: A second spring (74) is sleeved on the side wall of the fixed rod (61) located at the upper end of the movable plate (72); the upper end of the second spring (74) is fixedly connected to the lower end of the limit block (62); and the lower end of the second spring (74) is fixedly connected to the upper end of the movable plate (72).

9. The forming die for bending the side plate of a safe according to claim 1, characterized in that: The auxiliary folding mechanism (8) comprises an incomplete gear (82) and a bending block (84); the upper end of the lower die seat (5) is rotatably connected to a rotating shaft (81) via a bearing seat; a connecting rod (83) is fixedly connected to the side wall of the rotating shaft (81); an end of the connecting rod (83) away from the rotating shaft (81) is fixedly connected to the bending block (84); the rear end of the rotating shaft (81) is fixedly connected to an incomplete gear (82); and the incomplete gear (82) cooperates with the gear.

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