CN209829925U - Bending mechanism for riveting blade of paper shredder - Google Patents

Abstract

The utility model discloses a 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 and extension spring. The utility model discloses can the continuous punching press, automatically, 45 bending are carried out to the blade 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

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 mechanism 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 mechanism of bending for kneader riveting blade, can bend into 45 degrees automatically with the blade on the material area, the follow-up riveting of two blades of being convenient for, the continuity is strong, machining efficiency is high.

Realize the utility model discloses the technical scheme of purpose is: a 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 plane is arranged at the bottom of the slotting tool, the lower die assembly comprises a female die, a slider and a tension spring, the female die is correspondingly arranged below the upper clamping plate, a slotting tool avoiding hole and a slider 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 slider cavity is correspondingly arranged on one, the slider sets up and moves about and can follow the slider die cavity at the slider die cavity, and the slider has with first inclined plane slide wedge complex second inclined plane, and the slider other end is equipped with the third inclined plane, the contained angle between the upper surface of third inclined plane and die is the acute angle, extension spring one end and slider elastic connection.

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.

Preferably, the included angle between the third inclined surface and the upper surface of the concave die is 45 degrees, and the size of the included angle can be adjusted according to actual conditions.

In order to avoid interference when the blade is bent, the stop plate and the stripping plate are respectively provided with a yielding groove for bending the blade.

The utility model discloses a mechanism of bending for kneader riveting blade's beneficial effect is: the utility model discloses can the continuous punching press, automatically, 45 bending are carried out to the blade 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 bending mechanism for the riveting blade of the shredder of 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 sliding block 10, a sliding block cavity 11, a tension spring 12, a blade 13, a positioning block 14 and a slotting tool clearance hole 15.

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 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 left end centers of two opposite surfaces of the stop plate 5 and the stripper plate 6 are respectively provided with a yielding groove, the width of the yielding groove corresponds to that of the blade 13, and when the blade 13 is bent rightwards, the yielding groove can yield and limit the blade 13, so that interference and deflection are prevented.

The lower die assembly comprises a female die 7, a sliding block 10 and a tension spring 12, 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 15 and a sliding block cavity 11 are formed in the female die 7, the slotting tool avoiding hole 15 is vertically arranged, the sliding block cavity 11 is horizontally arranged, the slotting tool avoiding hole 15 is correspondingly arranged below a slotting tool 9, the slotting tool 9 can be inserted into the slotting tool avoiding hole 15, the sliding block cavity 11 is correspondingly arranged on one side of the slotting tool avoiding hole 15, the left end of the sliding block cavity 11 is communicated with the slotting tool avoiding hole 15, the sliding block 10 is arranged in the sliding block cavity 11 and can move left and right along the sliding block cavity 11, the left end of the sliding block 10 is provided with a second inclined plane matched with a first inclined plane wedge, the right end of the sliding block 10 is provided with a third inclined plane, an included angle between the third inclined plane and the upper surface of the female die 7 is 45 degrees, the, the right end of the tension spring 12 is elastically connected with the slide block 10.

When the cutter is machined, a blade material belt is placed on a conveying belt, the blade material belt is provided with two rows of symmetrical blades 13, a positioning block 14 on the conveying belt positions the blade material belt, the blades 13 are bent by 90 degrees through a previous station, the blades 13 move to the upper side of a female die 7, an upper die base 1 simultaneously drives a slotting tool 9, a stop plate 5 and a stripping plate 6 to descend, the stripping plate 6 compresses the blades 13, the bottoms of which do not need to be bent, the slotting tool 9 is inserted into a slotting tool avoiding hole 15, the sliding block 10 is driven to move rightwards along a sliding block cavity 11 under the action of a wedge, the sliding block 10 enables the original 90-degree blades 13 to be bent under the action of the wedge, so that the two blades are 45-degree included angles, the slotting tool 9 ascends, the driving block 10 is driven to return to the original. Meanwhile, the blades 13 are bent by 45 degrees and then are stamped by the stamping mechanism, so that the two blades are riveted and formed to form a continuous die, and the process is carried out simultaneously, so that the blades 13 are riveted and formed 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 mechanism of bending for kneader riveting blade, includes 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 slider and a tension spring, the female die is correspondingly arranged below the upper clamping plate, a slotting tool avoiding hole and a slider die 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 slider die cavity is correspondingly arranged on one side of the slotting tool avoiding hole, one end of the slider die cavity is communicated with the slotting tool avoiding hole, the slider is arranged in the slider die cavity and can move left and right along the slider die cavity, the slider has a second inclined plane, an included angle between the third inclined plane and the upper surface of the female die is an acute angle, and one end of the tension spring is elastically connected with the sliding block.

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

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

4. The bending mechanism for shredder riveting blades according to claim 1, which is characterized in that: and the included angle between the third inclined plane and the upper surface of the female die is 45 degrees.

5. The bending mechanism for shredder riveting blades according to claim 1, which is characterized in that: the stop plate and the stripping plate are respectively provided with a yielding groove for bending the blade.