Metal plate bending mechanism for special door production

By designing automatic unloading and clamping mechanisms in the sheet metal bending mechanism, the problem of unstable unloading and clamping of the sheet material after bending in the prior art is solved, and efficient, precise bending and automatic unloading and collection of the sheet material are achieved.

CN119566115AInactive Publication Date: 2025-03-07ANHUI ZHONGNAN AIR DEFENCE WORKS PROTECTIVE EQUIP
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Patent Information

Application Number
CN202411832248.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing sheet metal bending mechanism cannot be automatically unloaded after the sheet is bent, and it needs to be picked up one by one by one by one. The sheet is easily shaken during clamping, which affects the bending accuracy.

Method used

A sheet metal bending mechanism for special door production is designed, including a bottom plate, operating table, upper mold and lower mold. Automatic unloading of the plate body is achieved by setting a guide wheel and a cutting mechanism, and the plate body is fixed and clamped through a clamping mechanism to ensure bending accuracy.

Benefits of technology

Automatic unloading of the plate body is realized, reducing the frequency and safety hazards of manual operation, avoiding the shaking of the plate, improving the bending accuracy, and automatic collection of the plate body is realized through the collection mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a special door production sheet metal bending mechanism which comprises a bottom plate, an operation table, an upper die and a lower die fixedly arranged on the top face of the operation table, fixing plates are slidably arranged on the two sides of the top face of the operation table, U-shaped frames are fixedly arranged on the opposite sides of the two fixing plates, and guide wheels are rotatably arranged in the U-shaped frames; and a discharging mechanism is arranged between the back faces of the two U-shaped frames, the bent plate body is pushed out of the top face of the lower die through the discharging mechanism, the discharging mechanism comprises a fixing frame arranged on the back face of the lower die, and L-shaped plates are arranged on the two sides of the interior of the fixing frame in a sliding mode. According to the metal plate bending mechanism for special door production, plate bodies are automatically discharged after being bent, personnel do not need to manually take the plate bodies one by one, in the discharging process, the guide wheels are arranged to assist the plate bodies to be discharged along a guide route, and potential safety hazards are correspondingly reduced while labor force is reduced.
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Description

Technical Field

[0001] The invention relates to the technical field of special door production, in particular to a sheet metal bending mechanism for special door production. Background Art

[0002] Special doors mainly refer to a type of doors that are different from ordinary doors and windows and have special uses and functions. They often play an irreplaceable role in specific environments or places.

[0003] The sheet metal bending mechanism is a key equipment in the sheet metal processing process, including a base, a lower die is arranged in the middle of the top surface of the base, and a sheet metal plate body is placed on the lower die; pillars are symmetrically arranged on both sides of the top surface of the base, a top plate is horizontally arranged between the top surfaces of the pillars, a stamping cylinder is arranged in the middle of the top plate, the telescopic part of the stamping cylinder runs through the middle of the top plate, and a mounting plate is fixedly installed at the lower part of the telescopic part of the stamping cylinder, and an upper die is arranged on the bottom end surface of the mounting plate; slide rails are symmetrically arranged on both sides of the top surface of the base, a slider is slidably matched in the slide groove of the slide rail, and an extrusion block is fixedly installed on the top surface of the slider;

[0004] In the above patent, the plate is placed on the top surface of the lower mold, and the bending operation can only be performed after the plate is clamped and fixed by the extrusion blocks on both sides. However, after the bending is completed, the automatic unloading of the plate is not achieved, and personnel need to pick them up manually one by one, which is very inconvenient. In addition, during the clamping process of the plate, due to the downward impact force generated by the bending, it is easy to cause slight shaking on both sides of the plate, and the clamping force is weak, affecting the bending accuracy. Therefore, in view of the above shortcomings, the present invention makes the following improvements. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sheet metal bending mechanism for producing special doors, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sheet metal bending mechanism for special door production, comprising a base plate, an operating table, an upper mold and a lower mold fixedly arranged on the top surface of the operating table, fixed plates are slidably arranged on both sides of the top surface of the operating table, and U-shaped frames are fixedly arranged on the opposite sides of the two fixed plates, guide wheels are rotatably arranged inside the U-shaped frame, and a feeding mechanism is arranged between the back sides of the two U-shaped frames, and the bent plate body is pushed out from the top surface of the lower mold through the feeding mechanism.

[0007] Preferably, the unloading mechanism includes a fixed frame arranged on the back side of the lower mold, and L-shaped plates are slidably arranged on both sides of the interior of the fixed frame, one side of the two L-shaped plates are respectively fixedly connected to the back sides of the two fixed plates, a U-shaped push rod is arranged on the front side of the fixed frame, and a driving part for controlling the U-shaped push rod to move forward and backward is arranged on the surface of the fixed frame.

[0008] Preferably, the driving part comprises a threaded sleeve rotatably arranged inside the fixed frame, and the internal thread of the threaded sleeve is connected to a threaded rod, and one end of the threaded rod is connected to the back side of the U-shaped push rod.

[0009] Preferably, a first motor is fixedly provided on the back of the fixed frame via a support plate, and an output end of the first motor is fixedly connected to a first gear via a coupling, and a second gear meshing with the first gear is fixedly provided on the surface of the threaded sleeve.

[0010] Preferably, a first electric push rod is fixedly provided on both sides of the lower mold, and the protruding end of the first electric push rod is fixedly connected to the bottom surface of the fixed plate through a vertical plate, and a clamping mechanism is provided on the surface of the U-shaped frame, and the clamping mechanism is used to clamp and fix the plate body.

[0011] Preferably, the clamping mechanism comprises a double-rod hydraulic cylinder rotatably arranged inside the U-shaped frame, and clamping plates are fixedly arranged at both protruding ends of the double-rod hydraulic cylinder, and clamping pads are arranged on opposite sides of the upper and lower clamping plates.

[0012] Preferably, a second motor is fixedly provided inside the U-shaped frame, and a driving gear is fixedly provided at one end of the output shaft of the second motor via a coupling, and a passive gear meshing with the driving gear is provided on the surface of the double-rod hydraulic cylinder.

[0013] Preferably, a hydraulic cylinder is fixedly provided on the top surface of the operating table via a U-shaped frame, and the protruding end of the hydraulic cylinder is fixedly connected to the top surface of the upper mold.

[0014] Preferably, a collecting mechanism is provided on the top surface of the bottom plate and on the front side of the lower mold, and the collecting mechanism is used to centrally collect the bent plate bodies.

[0015] Preferably, the collecting mechanism includes a second electric push rod fixedly arranged on the top surface of the bottom plate, a V-shaped material receiving plate is slidably arranged on the front side of the lower mold, and the protruding end of the second electric push rod is fixedly connected to the bottom surface of the V-shaped material receiving plate.

[0016] Beneficial Effects

[0017] The present invention provides a sheet metal bending mechanism for special door production, which has the following beneficial effects compared with the prior art:

[0018] (1) The sheet metal bending mechanism for special door production can automatically unload the sheet metal after it is bent, eliminating the need for personnel to manually pick it up one by one. In addition, during the unloading process, the guide wheels can assist the sheet metal to be discharged along the guide route, making it easier to collect it later. This reduces labor and correspondingly reduces safety hazards.

[0019] (2) The sheet metal bending mechanism used in the production of special doors can clamp and fix the plate body on the top surface of the lower mold through the setting of the clamping mechanism, which can prevent the plate body from shaking during bending and, to a certain extent, can also play a guiding role during subsequent unloading, avoiding the problem of deviation of the plate body during unloading and affecting subsequent collection.

[0020] (3) The sheet metal bending mechanism used in the production of special doors can automatically collect the bent plates through the setting of a collection mechanism, which can facilitate personnel to pick up the plates in a unified manner after a certain amount of plates are collected, thereby reducing the frequency of picking up the plates one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the material unloading mechanism of the present invention;

[0023] Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A;

[0024] Figure 4 It is a structural schematic diagram of the collecting mechanism of the present invention.

[0025] In the figure: 1. bottom plate; 2. operating table; 3. upper die; 4. lower die; 5. fixed plate; 6. U-shaped frame; 7. guide wheel; 8. unloading mechanism; 81. fixed frame; 82. L-shaped plate; 83. U-shaped push rod; 84. threaded sleeve; 85. threaded rod; 9. clamping mechanism; 91. double-rod hydraulic cylinder; 92. clamping plate; 93. second motor; 94. driving gear; 95. driven gear; 10. first gear; 11. second gear; 12. first electric push rod; 13. first motor; 14. hydraulic cylinder; 15. collecting mechanism; 151. second electric push rod; 152. V-shaped receiving plate. DETAILED DESCRIPTION

[0026] 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.

[0027] Embodiment 1

[0028] See also Figure 1 and Figure 2 As shown, the present invention provides a technical solution, and the specific improvements are as follows:

[0029] A sheet metal bending mechanism for producing special doors, comprising a bottom plate 1, an operating table 2, an upper die 3, and a lower die 4 fixedly arranged on the top surface of the operating table 2, a hydraulic cylinder 14 fixedly arranged on the top surface of the operating table 2 through a U-shaped frame, and the protruding end of the hydraulic cylinder 14 is fixedly connected to the top surface of the upper die 3, fixed plates 5 are slidably arranged on both sides of the top surface of the operating table 2, and U-shaped frames 6 are fixedly arranged on the opposite sides of the two fixed plates 5, and guide wheels 7 are rotatably arranged inside the U-shaped frames 6, and a material discharge mechanism 8 is arranged between the backs of the two U-shaped frames 6, and the bent plate body is pushed out from the top surface of the lower die 4 through the material discharge mechanism 8;

[0030] The unloading mechanism 8 includes a fixed frame 81 arranged on the back of the lower mold 4, and L-shaped plates 82 are slidably arranged on both sides of the fixed frame 81, one side of the two L-shaped plates 82 is fixedly connected to the back of the two fixed plates 5 respectively, a U-shaped push rod 83 is arranged on the front of the fixed frame 81, and a guide rod penetrating to the back of the fixed frame 81 is arranged on the back of the U-shaped push rod 83, and a driving part for controlling the U-shaped push rod 83 to move forward and backward is arranged on the surface of the fixed frame 81, and the driving part includes a threaded sleeve 84 rotatably arranged inside the fixed frame 81, a first motor 13 is fixedly arranged on the back of the fixed frame 81 through a support plate, and the output end of the first motor 13 is fixedly connected to the first gear 10 through a coupling, a second gear 11 meshing with the first gear 10 is fixedly arranged on the surface of the threaded sleeve 84, and a threaded rod 85 is threadedly connected to the inside of the threaded sleeve 84, and one end of the threaded rod 85 is connected to the back of the U-shaped push rod 83;

[0031] The plate is placed on top of the lower die 4, and the hydraulic cylinder 14 is started, so that the extended end of the hydraulic cylinder 14 controls the upper die 3 to descend. The top surface of the lower die 4 is provided with a V-shaped groove adapted to the upper die 3. The middle part of the plate is pressed down into the inside of the V-shaped groove and fits with its inner wall, thereby achieving the bending of the plate;

[0032] After the plate bending operation is completed, the first motor 13 is started, so that the first motor 13 drives the first gear 10 to rotate, and then the second gear 11 drives the threaded sleeve 84 to rotate. During the rotation of the threaded sleeve 84, the threaded rod 85 is driven to rotate. Under the limitation of the guide rod, the threaded rod 85 drives the U-shaped push rod 83 to move forward, and the U-shaped push rod 83 pushes the plate forward for unloading. During the process of pushing the plate out, the guide wheel 7 will roll along the side of the plate to assist in the rapid unloading of the plate.

[0033] Embodiment 2

[0034] Based on Example 1, please refer to Figure 1 and Figure 3 The specific improvements are as follows:

[0035] A first electric push rod 12 is fixedly provided on both sides of the lower mold 4, and the protruding end of the first electric push rod 12 is fixedly connected to the bottom surface of the fixed plate 5 through a vertical plate. A clamping mechanism 9 is provided on the surface of the U-shaped frame 6, and the clamping mechanism 9 is used to clamp and fix the plate body. The clamping mechanism 9 includes a double-rod hydraulic cylinder 91 rotatably provided inside the U-shaped frame 6, a second motor 93 is fixedly provided inside the U-shaped frame 6, and a driving gear 94 is fixedly provided at one end of the output shaft of the second motor 93 through a coupling, a passive gear 95 meshing with the driving gear 94 is provided on the surface of the double-rod hydraulic cylinder 91, and a clamping plate 92 is fixedly provided on both protruding ends of the double-rod hydraulic cylinder 91, and a clamping pad is provided on the opposite side of the upper and lower clamping plates 92;

[0036] After the plate body is placed on the top surface of the lower mold 4, the first electric push rod 12 is started, so that the extended end of the first electric push rod 12 drives the fixed plate 5 to approach the plate body through the vertical plate until the guide wheel 7 contacts the side wall of the plate body, and the second motor 93 is started, so that the second motor 93 drives the active gear 94 to rotate, and then drives the double-rod hydraulic cylinder 91 to rotate through the passive gear 95, and the double-rod hydraulic cylinder 91 drives the clamping plate 92 to rotate in the direction of the plate body, and then controls the two extended ends of the double-rod hydraulic cylinder 91 to retract relative to each other until the upper and lower clamping pads are clamped on the surface of the plate body, thereby improving the stability of subsequent plate bending work.

[0037] Embodiment 3

[0038] Based on Example 2, please refer to Figure 1 and Figure 4 The specific improvements are as follows:

[0039] A collecting mechanism 15 is provided on the top surface of the bottom plate 1 and located on the front of the lower mold 4, and the collecting mechanism 15 is used to collect the bent plates in a centralized manner. The collecting mechanism 15 includes a second electric push rod 151 fixedly provided on the top surface of the bottom plate 1, and a V-shaped receiving plate 152 is slidably provided on the front of the lower mold 4. The extended end of the second electric push rod 151 is fixedly connected to the bottom surface of the V-shaped receiving plate 152, and a barrier is provided on the top surface of the V-shaped receiving plate 152;

[0040] When unloading the bent plate, the second electric push rod 151 is started in advance so that the extended end of the second electric push rod 151 drives the V-shaped receiving plate 152 to slide upward along the front side of the lower mold 4, so that the V-shaped receiving plate 152 can collect the plate. As the number of plates increases, the height of the V-shaped receiving plate 152 can be controlled accordingly.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] 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 sheet metal bending mechanism for producing special doors, comprising a bottom plate (1), an operating table (2), an upper die (3), and a lower die (4) fixedly arranged on the top surface of the operating table (2), characterized in that: Fixed plates (5) are slidably arranged on both sides of the top surface of the operating table (2), and U-shaped frames (6) are fixedly arranged on opposite sides of the two fixed plates (5), and guide wheels (7) are rotatably arranged inside the U-shaped frames (6). A material discharge mechanism (8) is arranged between the backs of the two U-shaped frames (6), and the bent plate body is pushed out from the top surface of the lower mold (4) through the material discharge mechanism (8).

2. The sheet metal bending mechanism for special door production according to claim 1, characterized in that: The unloading mechanism (8) comprises a fixed frame (81) arranged on the back side of the lower mold (4), and L-shaped plates (82) are slidably arranged on both sides of the interior of the fixed frame (81), one side of the two L-shaped plates (82) is respectively fixedly connected to the back sides of the two fixed plates (5), a U-shaped push rod (83) is arranged on the front side of the fixed frame (81), and a driving part for controlling the U-shaped push rod (83) to move forward and backward is arranged on the surface of the fixed frame (81).

3. The sheet metal bending mechanism for special door production according to claim 2, characterized in that: The driving part comprises a threaded sleeve (84) rotatably arranged inside the fixed frame (81), and the internal thread of the threaded sleeve (84) is connected to a threaded rod (85), and one end of the threaded rod (85) is connected to the back side of the U-shaped push rod (83).

4. The sheet metal bending mechanism for special door production according to claim 3, characterized in that: A first motor (13) is fixedly arranged on the back of the fixing frame (81) via a support plate, and an output end of the first motor (13) is fixedly connected to a first gear (10) via a coupling, and a second gear (11) meshing with the first gear (10) is fixedly arranged on the surface of the threaded sleeve (84).

5. The sheet metal bending mechanism for special door production according to claim 1, characterized in that: First electric push rods (12) are fixedly arranged on both sides of the lower mold (4), and the protruding ends of the first electric push rods (12) are fixedly connected to the bottom surface of the fixed plate (5) through the vertical plate. A clamping mechanism (9) is arranged on the surface of the U-shaped frame (6), and the clamping mechanism (9) is used to clamp and fix the plate body.

6. The sheet metal bending mechanism for special door production according to claim 5, characterized in that: The clamping mechanism (9) comprises a double-rod hydraulic cylinder (91) rotatably arranged inside the U-shaped frame (6), and clamping plates (92) are fixedly arranged at both protruding ends of the double-rod hydraulic cylinder (91), and clamping pads are arranged on opposite sides of the upper and lower clamping plates (92).

7. The sheet metal bending mechanism for special door production according to claim 6, characterized in that: A second motor (93) is fixedly arranged inside the U-shaped frame (6), and a driving gear (94) is fixedly arranged at one end of the output shaft of the second motor (93) via a coupling, and a driven gear (95) meshing with the driving gear (94) is arranged on the surface of the double-rod hydraulic cylinder (91).

8. The sheet metal bending mechanism for special door production according to claim 1, characterized in that: A hydraulic cylinder (14) is fixedly arranged on the top surface of the operating table (2) via a U-shaped frame, and the protruding end of the hydraulic cylinder (14) is fixedly connected to the top surface of the upper mold (3).

9. The sheet metal bending mechanism for special door production according to claim 1, characterized in that: A collecting mechanism (15) is provided on the top surface of the bottom plate (1) and located on the front surface of the lower mold (4), and the collecting mechanism (15) is used to centrally collect the bent plate bodies.

10. The sheet metal bending mechanism for special door production according to claim 9, characterized in that: The collecting mechanism (15) comprises a second electric push rod (151) fixedly arranged on the top surface of the bottom plate (1), a V-shaped material receiving plate (152) is slidably arranged on the front surface of the lower mold (4), and the protruding end of the second electric push rod (151) is fixedly connected to the bottom surface of the V-shaped material receiving plate (152).