CN209829926U - 90-degree bending mechanism for riveting blade of paper shredder - Google Patents

Abstract

The utility model discloses a 90 mechanism of bending for kneader riveting blade, including last die carrier, last die assembly, lower die carrier and lower die assembly, go up the die assembly and include slotting tool, punch holder, backstop board and take off the board, lower die assembly includes die, slider, the piece of bending and extension spring. The utility model discloses can the continuous punching press, carry out 90 bending to the blade automatically to the pressure of being convenient for between the follow-up two blades is riveted, compares manual pressure and rivets, and machining efficiency is very high, greatly reduced workman's intensity of labour.

Description

90-degree bending mechanism for riveting blade of paper shredder

The technical field is as follows:

the utility model relates to a kneader product technology processing field, concretely relates to 90 mechanisms of bending for kneader riveting blade.

Background art:

with the progress of society, more and more products with new functions and more humanization have come into people's life and work, and the kneader is just one of them. Paper shredders help people to shred important documents into small paper particles and are fast in shredding, and one of the main working components of paper shredders is a blade. In the processing procedure of the paper shredder blade, the process is more complicated, the number of processing mechanisms is more, if riveting is needed between two blades, riveting is needed to be manually overlapped on one blade on a riveting press, the processing efficiency is very poor, and defective products are more.

The utility model has the following contents:

the utility model aims at prior art's defect, provide a 90 mechanism of bending for kneader riveting blade, can bend into 90 degrees automatically with the blade on the material area, the follow-up bending of the blade of being convenient for reaches two blade riveting, and the continuity is strong, and machining efficiency is high.

Realize the utility model discloses the technical scheme of purpose is: a90-degree bending mechanism for a riveting blade of a paper shredder comprises an upper die frame, an upper die assembly fixed at the bottom end of the upper die frame, a lower die frame and a lower die assembly fixed at the top end of the lower die frame, wherein the upper die assembly comprises a slotting tool, an upper clamping plate, a stop plate and a stripping plate, the slotting tool and the stop plate are respectively fixed at the bottom end of the upper die frame through the upper clamping plate, the stripping plate is fixed at the bottom end of the stop plate, the slotting tool and the stop plate can move up and down along with the upper die frame, a first inclined surface is arranged at the bottom of the slotting tool, the lower die assembly comprises a female die, a sliding block, a bending block and a tension spring, the female die is correspondingly arranged below the upper clamping plate, a slotting tool avoiding hole is formed in the female die, a slide way cavity and a bending block cavity are formed in the female die, the slotting tool avoiding hole is correspondingly arranged below the slotting tool, the slotting tool can be inserted into the slotting tool, the slider sets up and removes about can following the slide die cavity at the slide die cavity, and slider one end stretch into the slotting tool and keep away downthehole and cooperate with first inclined plane slide wedge, and the slider other end is equipped with the second inclined plane, bend the piece die cavity and correspond the setting in slide die cavity top, bend piece die cavity bottom and slide die cavity intercommunication, the piece setting of bending reciprocates along bending the piece die cavity in bending the piece die cavity, and bends the piece bottom and stretch into the slide die cavity and cooperate with second inclined plane slide wedge, extension spring bottom and lower carriage fixed connection, extension spring top and the piece elastic connection that bends.

In order to facilitate assembly, an upper base plate is arranged between the upper clamping plate and the upper die frame; and a lower base plate is arranged between the lower die frame and the female die.

In order to facilitate the matching driving, a first guide roller matched with the first inclined plane is arranged at the left end of the sliding block; and a second guide roller matched with the second inclined plane is arranged at the bottom end of the bending block.

The utility model discloses a 90 mechanism of bending for kneader riveting blade's beneficial effect is: the utility model discloses can the continuous punching press, carry out 90 bending to the blade automatically to the pressure of being convenient for between the follow-up two blades is riveted, compares manual pressure and rivets, and machining efficiency is very high, greatly reduced workman's intensity of labour.

Description of the drawings:

FIG. 1 is a schematic structural view of the 90 DEG bending mechanism for the riveting blade of the shredder according to the present invention,

fig. 2 is a schematic structural view of the female die of the present invention;

in the figure: the device comprises an upper die frame 1, a lower die frame 2, an upper backing plate 3, an upper clamping plate 4, a stop plate 5, a stripping plate 6, a female die 7, a lower backing plate 8, a slotting tool 9, a bending block 10, a sliding block 11, a slideway cavity 12, a tension spring 13, a first guide roller 14, a second guide roller 15, a blade 16, a slotting tool avoiding hole 17, a bending block cavity 18 and a positioning block 19.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

As shown in fig. 1 and 2, a 90 ° bending mechanism for a riveting blade of a paper shredder comprises an upper die frame 1, an upper die assembly fixed at the bottom end of the upper die frame 1, a lower die frame 2 and a lower die assembly fixed at the top end of the lower die frame 2.

Go up the mould subassembly and include slotting tool 9, punch holder 4, backstop board 5 and take off 6, punch holder 4 is fixed in 1 bottom of last die carrier through upper padding plate 3, slotting tool 9, backstop board 5 are fixed in 4 bottoms of punch holder, and slotting tool 9, backstop board 5 set up respectively in both sides, take off 6 fixes in 5 bottoms of backstop board, and slotting tool 9, backstop board 5 can reciprocate along with last die carrier 1, and slotting tool 9 bottom is equipped with first inclined plane.

The lower die assembly comprises a female die 7, a sliding block 11, a bending block 10 and a tension spring 13, the female die 7 is correspondingly arranged below an upper clamping plate 4, the female die 7 is fixed on a lower die frame 2 through a lower backing plate 8, a slotting tool avoiding hole 17, a slide way cavity 12 and a bending block cavity 18 are formed in the female die 7, the slotting tool avoiding hole 17 is correspondingly arranged below a slotting tool 9, the slotting tool 9 can be inserted into the slotting tool avoiding hole 17, the slide way cavity 12 is correspondingly arranged on one side of the bottom end of the slotting tool avoiding hole 17, the left end of the slide way cavity 12 is communicated with the slotting tool avoiding hole 17, the sliding block 11 is arranged in the slide way cavity 12 and can move left and right along the slide way cavity 12, the left end of the sliding block 11 extends into the slotting tool avoiding hole 17 and is correspondingly arranged below a first inclined plane, a first guide roller 15 is fixed at the left end of the sliding block 11 and is matched with a first inclined plane wedge, a second inclined plane is arranged at the right end of the sliding block 11, and the bending block 18 is, the bottom end of the bending block cavity 18 is communicated with the slide cavity 12, the bending block 10 is arranged in the bending block cavity 18 and can move up and down along the bending block cavity 18, the bottom end of the bending block 10 extends into the slide cavity 12 and is correspondingly arranged above a second inclined plane, a second guide roller 15 is fixed at the bottom end of the bending block 10 and is matched with a second inclined plane wedge, the bottom end of the tension spring 13 is fixedly connected with the lower die frame 2, and the top end of the tension spring 13 is elastically connected with the bending block 10.

When the pair of blades 16 moves to the position above a bending block cavity 18, the upper die set 1 simultaneously drives the slotting tool 9, the stop plate 5 and the stripping plate 6 to descend, the stripping plate 6 tightly presses one blade 16, the slotting tool 9 is inserted into the slotting tool avoiding hole 17, the driving slide block 11 moves rightwards along the slide way cavity 12, the slide block 11 drives the bending block 10 to move upwards along the bending block cavity 18, the bending block 10 can drive the other blade 16 to bend 90 degrees, the slotting tool 9 ascends at the moment, the bending block 10 is driven to descend under the elastic action of the tension spring 13, the bending block 10 drives the slide block 11 to return to the original position, and one-time bending is completed. Meanwhile, the blade bent by 90 degrees is riveted and molded by a 45-degree bending mechanism and a stamping mechanism to form a continuous die, and the process is carried out simultaneously, so that the blades 16 are riveted and molded one by one.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (5)

1. The utility model provides a 90 mechanism of bending for kneader riveting blade, includes the die carrier, fixes last mould subassembly, lower die carrier and the lower mould subassembly of fixing die carrier top under in last die carrier bottom, its characterized in that: the upper die assembly comprises a slotting tool, an upper clamping plate, a stop plate and a stripping plate, the slotting tool and the stop plate are respectively fixed at the bottom end of an upper die frame through the upper clamping plate, the stripping plate is fixed at the bottom end of the stop plate, the slotting tool and the stop plate can move up and down along with the upper die frame, a first inclined plane is arranged at the bottom of the slotting tool, the lower die assembly comprises a female die, a sliding block, a bending block and a tension spring, the female die is correspondingly arranged below the upper clamping plate, a slotting tool avoiding hole, a sliding way cavity and a bending block cavity are formed in the female die, the slotting tool avoiding hole is correspondingly arranged below the slotting tool, the slotting tool can be inserted into the slotting tool avoiding hole, the sliding way cavity is correspondingly arranged on one side of the slotting tool avoiding hole, one end of the sliding way cavity is communicated with the slotting tool avoiding hole, the sliding block is arranged in the sliding way cavity and can move left and right along the sliding way, one end, the slider other end is equipped with the second inclined plane, the piece die cavity that bends corresponds the setting in slide die cavity top, the piece die cavity bottom and the slide die cavity intercommunication of bending, the piece setting of bending can follow the piece die cavity that bends and reciprocate in the piece die cavity of bending, and the piece bottom of bending stretch into the slide die cavity and with the cooperation of second inclined plane slide wedge, extension spring bottom and lower die holder fixed connection, the extension spring top with bend a elastic connection.

2. The 90 ° bending mechanism for shredder riveting blades according to claim 1, characterized in that: an upper base plate is arranged between the upper clamping plate and the upper die frame.

3. The 90 ° bending mechanism for shredder riveting blades according to claim 1, characterized in that: and a lower base plate is arranged between the lower die frame and the female die.

4. The 90 ° bending mechanism for shredder riveting blades according to claim 1, characterized in that: the left end of the sliding block is provided with a first guide roller matched with the first inclined plane.

5. The 90 ° bending mechanism for shredder riveting blades according to claim 1, characterized in that: and a second guide roller matched with the second inclined plane is arranged at the bottom end of the bending block.