CN201249129Y - Paper jam preventing device of paper shredder - Google Patents

Abstract

A paper jam preventing device of a paper shredder is mainly characterized in that a shaft lever which is arranged in parallel with a paper inlet is arranged on the periphery of the lower part of the paper inlet corresponding to a shell, a plurality of spacers are fixedly arranged on the shaft lever, and each spacer is fixedly arranged on the shaft lever in an eccentric mode; the operator can control the shaft lever to rotate towards the direction of the paper inlet of the casing or rotate towards the opposite direction of the paper inlet of the casing by controlling the control component, so that the spacer on the shaft lever extends into the paper feeding channel between the casing and the cutter shaft, the width of the paper feeding channel is further reduced, the phenomenon that the cutter shaft is blocked and cannot operate due to the fact that the single paper feeding thickness exceeds a standard is prevented, or the original width of the paper feeding channel can be restored when paper is returned, so that the paper can conveniently and smoothly exit the paper shredder.

Description

Paper shredder anti-jam device

technical field

The utility model relates to a paper shredder, and aims to provide a method for the operator to change the width of the paper feeding channel of the paper shredder, so as to prevent the thickness of the single feeding paper from exceeding the standard, resulting in the cutter shaft being stuck and unable to operate, or when the paper is returned. An anti-jam device that facilitates the smooth exit of paper from the shredder.

Background technique

As we all know, the principle of shredders for shredding paper is that a large number of cutting blades (cutting blades) and spacers (spacers) are inserted on the rotary shaft (rotary shafts), and the motor and gear set (motor and gear) are used to box) drives the two parallel and relatively rotating knife shafts to cut the paper into thin strips by shearing the passing paper.

According to the different mechanical cutting modes, paper shredders are mainly divided into two types: stripe-cut shredders and cross-cut shredders. The former is to arrange the cutting blades in specifications. The paper is cut longitudinally into long strips on the rotary knife wheel, and the blade of the latter has more than one hook-shaped blade, and the blades are arranged in a spiral shape on the rotary knife wheel, so that the paper is not only cut longitudinally into strips, It was cut horizontally into shredded pieces of paper.

Regardless of the above-mentioned straight shredder or crushing shredder, it is basically composed of a cutter assembly, a casing, and a waste paper drum; and the cutter assembly of a general shredder is mainly The motor and transmission gear set drive two parallel and relatively rotating knife shafts to cut the paper into thin strips by shearing force. Therefore, most commonly used paper shredders are equipped with a piece of paper directly above the casing. The knife shafts are parallel to the paper inlet, and the position of the paper inlet is roughly between the two knife shafts, so that the paper inserted through the paper inlet can directly extend between the two knife shafts.

When using a general paper shredder, in order to speed up the shredding speed, the operator will put several documents into the paper opening at one time, and many documents that need to be shredded and destroyed have been used and the edges have been warped. The entire stack of documents has been knocked flat first, and there will still be more obstacles when the documents are inserted into the paper opening. Therefore, the paper entrance on the shredder casing is usually designed to be larger to facilitate the user. The paper is inserted between the two knife shafts.

Because the paper feeding channel of the shredder is much larger than the number of shredded paper that the shredder can accept at a time, and the operator cannot accurately control the amount of paper fed each time, it often happens that the thickness of the single feeding paper exceeds the standard, resulting in The knife shaft is stuck and unable to run, which causes the paper to be stuck in the paper feeding channel and unable to move.

Utility model content

In view of this, the main purpose of this utility model is to provide a paper shredder that allows the operator to change the paper feeding channel of the shredder according to the actual needs, so as to prevent the thickness of the single feeding paper from exceeding the standard, causing the cutter shaft to be stuck and unable to operate. Anti-jam device.

In order to achieve the above purpose, the anti-jamming device of the shredder of the present invention mainly includes: a shaft, which is arranged on the periphery of the lower part of the paper inlet of the shredder casing, and is arranged in parallel with the paper inlet. ; Several spacers are fixed on the shaft in an eccentric manner; a control component is used to control the positive and negative rotation of the shaft and the rotation angle of the shaft.

Wherein, each spacer is fixed on the shaft rod in an eccentric manner; and the control assembly is arranged on the shaft end of the shaft rod.

When necessary, the operator can turn the shaft towards the paper inlet of the casing through the control component, so that the spacer on the shaft extends into the paper feeding path between the casing and the cutter shaft, thereby reducing the paper feeding path width to prevent the cutter shaft from being stuck and unable to operate due to the thickness of the single-feed paper exceeding the standard.

Moreover, when the paper needs to be ejected, the operator can also turn the shaft towards the paper inlet of the casing through the control assembly, so that the spacer on the shaft relatively exits the paper feed between the casing and the cutter shaft. channel to restore the original width of the paper feeding channel to facilitate paper exiting the shredder.

Description of drawings

FIG. 1 is a perspective view of the appearance of the first embodiment of the present invention when the width of the paper feeding channel is reduced.

Fig. 2 is a cross-sectional view of the first embodiment of the present invention when the width of the paper feeding channel is reduced.

Fig. 3 is a perspective view of the appearance of the first embodiment of the present invention when the width of the paper feeding channel is restored.

Fig. 4 is a cross-sectional view of the first embodiment of the present invention when the width of the paper feeding channel is restored.

FIG. 5 is a perspective view of the appearance of the second embodiment of the present invention when the width of the paper feeding channel is reduced.

Fig. 6 is a cross-sectional view of the second embodiment of the present invention when the width of the paper feeding channel is reduced.

Fig. 7 is a perspective view of the appearance of the second embodiment of the present invention when the width of the paper feeding channel is restored.

Fig. 8 is a cross-sectional view of the second embodiment of the present invention when the width of the paper feeding channel is restored.

Explanation of main component symbols

10 Shaft 20 Spacers

30 Control component 31 Pull handle

32 transmission gear 33 clutch gear

40 Shredder 41 Chassis

411 paper inlet 42 cutter shaft

421 cutter shaft gear 43 channels

Detailed ways

The features of the utility model can be clearly understood by referring to the drawings and the detailed description of the embodiments.

As shown in Figure 1, the anti-jamming device of the first embodiment of the utility model is a perspective view of the appearance of reducing the width of the paper feeding channel, and Figure 2 is a sectional view of the shredder structure of the first embodiment of the utility model showing the width of the reducing paper feeding channel, The paper shredder anti-jamming device of the present invention includes: a shaft 10, a plurality of spacers 20, and a control assembly 30; wherein:

The shaft 10 is arranged on the outer periphery below the paper inlet 411 of the casing 41 of the paper shredder 40, and is arranged axially in parallel with the paper inlet 411; each spacer 20 is fixed on the shaft 10 in an eccentric manner; As for, the control assembly 30 is mainly used to control the forward and reverse rotation of the shaft 10 and the rotation angle of the shaft 10 .

In the embodiment shown in FIGS. 1 and 2 above, the control assembly 30 is composed of a pull handle 31 fixed on the shaft end of the shaft 10 and relatively extending to the outside of the casing 41 .

Accordingly, the operator can turn the shaft 10 toward the paper inlet 411 of the casing 41 by pulling the pull handle 31, so that the spacer 20 on the shaft 10 extends into the casing 41 and the cutter shaft relatively. 42 between the paper feed passage 43, and then reduce the width of the paper feed passage 43 to prevent the cutter shaft 42 from being stuck and unable to operate because the thickness of the single paper feed exceeds the standard.

As shown in Figures 3 and 4, when the paper needs to be ejected, the operator can also rotate the shaft 10 in the opposite direction to the paper inlet 411 of the casing 41 by pulling the handle 31, so that the shaft 10 goes up. The spacer 20 relatively withdraws from the paper feed channel 43 between the casing 41 and the cutter shaft 42, so that the paper feed channel 43 restores the original width, so that the paper is conveniently exited from the shredder.

Furthermore, as shown in Figure 5 and Figure 6, the control assembly 30 in the utility model can also be composed of a transmission gear 32 fixed on the shaft end of the shaft 10, a transmission gear 32 arranged between the transmission gear 32 and the cutter shaft gear 421 Between clutch gear 33, and a switch (figure omitted) in order to control the action of clutch gear 33 constitutes.

The operator can control whether the transmission gear 32 and the cutter shaft gear 421 form a transmission through the switch, and when the cutter shaft 42 rotates forward, the angle at which the shaft rod 10 rotates toward the paper inlet 411 of the casing 41 is controlled, and then the shaft is controlled. The spacer 20 on the rod 10 relatively extends into the paper feeding channel 43 between the casing 41 and the cutter shaft 42, so as to achieve the purpose of fine-tuning the width of the paper feeding channel 43, not only to prevent the thickness of the single feeding paper from exceeding the standard As a result, the cutter shaft 42 is stuck and unable to operate, and a better use mode can be obtained according to personal habits.

Of course, as shown in Fig. 7 and Fig. 8, when the cutter shaft 42 is reversed, the control shaft 10 is rotated toward the direction of the paper inlet 411 of the casing 41, so that the spacer 20 on the shaft 10 is completely withdrawn. The paper channel 43 restores the original width of the paper feeding channel 43 to facilitate the exit of the paper from the shredder.

To sum up, the technical content and technical features of the present utility model have been disclosed above, but those who are familiar with the technology may still make various replacements and modifications based on the disclosure of the utility model without departing from the spirit of the utility model. Therefore, the protection scope of the utility model should not be limited to the disclosed embodiments, but should include various replacements and modifications that do not deviate from the utility model, and are covered by the claims.

Claims (3)

1. A paper shredder anti-jamming device, characterized in that it includes: A shaft is arranged on the outer periphery of the shredder casing below the paper inlet, and is arranged in parallel with the paper inlet; Several spacers are fixed on the shaft in an eccentric manner; A control component is used for controlling the positive and negative rotation of the shaft and the rotation angle of the shaft. 2. The anti-jamming device of a shredder according to claim 1, wherein the control component is composed of a pull handle fixed on the shaft end of the shaft and relatively extending to the outside of the casing. 3. The anti-jamming device of a shredder according to claim 1, characterized in that: the control unit is composed of a transmission gear fixed on the shaft end of the shaft, and a transmission gear arranged between the transmission gear and the cutter shaft gear. The clutch gear, and a switch for controlling the action of the clutch gear.

Images