Safe paper shredder for digital printing machine

Abstract

The utility model discloses a safe paper shredder for a digital printing machine, and relates to the technical field of paper shredders. The paper shredder comprises a paper shredder body. The paper shredder body comprises a machine shell, a side plate fixed to the side face of the machine shell, a collecting bin arranged at the bottom of the machine shell, a chipping drawer movably arranged in the collecting bin, a guide plate arranged on the inner side of the machine shell, a partition plate arranged in the middle of the machine shell and an equipment bin arranged on the edge of the machine shell. And crushing assemblies are symmetrically arranged in the machine shell and comprise crushing rollers which are arranged in a staggered mode, transmission teeth arranged at one ends of the crushing rollers, bearing seats arranged at the ends of the crushing rollers, supporting arms fixed to the side faces of the bearing seats and connecting blocks fixed between the bearing seats. According to the paper shredder, paper can be effectively and quickly sheared through the staggered crushing rollers, and the paper shredding efficiency is improved; and due to the design of the chipping drawer, the user can conveniently clean the collected chippings, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper shredders, in particular to a safe paper shredder for a digital printing press. Background Art

[0002] A shredder is an office appliance consisting of a set of rotating blades, a paper comb, and a drive motor. Modern shredders, in addition to paper, can also shred credit cards, CDs, and more. The shredder's structure and working principle: A shredder has two main components: a guillotine and an electric motor, tightly connected by a belt and gears. The motor drives the belts and gears, transferring energy to the guillotine, which rotates and shreds the paper with its sharp metal corners.

[0003] An existing patent (publication number CN 118106091 A) discloses a secure shredder for a digital printing press. This shredder uses coarse and fine blade rollers with varying degrees of shredding to sequentially cut paper. After being roughly cut by the coarse blade rollers, the paper forms restorable strips that fall into a main paper tray for long-term temporary storage. When a user needs to recover the contents of the paper, they can unlock the electronic lock with the correct password, remove the paper for restoration, thereby minimizing the loss of important information. Once restoration is confirmed to be unnecessary, the paper strip is then passed through a pair of fine blade rollers for fine shredding, forming irreversible shreds. When someone attempts to destructively open the electronic lock with the intention of removing the main paper tray, a blocking mechanism prevents its removal, effectively ensuring the confidentiality of the paper strip. Furthermore, an alarm is automatically triggered, and the paper strip is destroyed. Furthermore, a visual mark is placed on the thief's hand for easy identification and retrieval.

[0004] The above-mentioned paper shredder has low shredding efficiency when actually used. Therefore, we provide a secure paper shredder for a digital printing press to solve the above-mentioned problem. Utility Model Content

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a safe paper shredder for a digital printing machine, comprising a paper shredder body, the paper shredder body comprising a casing, side panels fixed to the sides of the casing, a collection bin arranged at the bottom of the casing, a debris drawer movably arranged inside the collection bin, a guide plate arranged on the inner side of the casing, a partition arranged in the middle of the casing, and an equipment bin arranged at the edge of the casing;

[0007] A crushing assembly is symmetrically arranged inside the casing, and the crushing assembly includes crushing rollers arranged alternately, transmission teeth arranged at one end of the crushing rollers, bearing seats arranged at the ends of the crushing rollers, support arms fixed to the sides of the bearing seats, and connecting blocks fixed between the bearing seats.

[0008] The utility model is further configured such that the lower branch of the partition is matched with the interlaced portion of the crushing roller, and the discharge portion of the crushing roller is matched with the collecting bin.

[0009] The present invention is further configured such that the support arm is fixed to the inner side of the casing, and the transmission gear is located inside the equipment compartment.

[0010] The utility model is further configured such that the guide plate is shielded and arranged above the crushing roller, and the lower end of the guide plate is fixed to the bearing seat.

[0011] The utility model is further configured such that a cleaning clip is fixed on the peripheral side of the bearing seat, and the inner side clip teeth of the cleaning clip match the cutting edge of the crushing roller.

[0012] The present invention is further configured such that the inner side of the debris drawer is magnetically engaged with the outer edge of the collection bin, and a handle is fixed at the middle position of the outer side surface of the debris drawer.

[0013] The utility model has the following beneficial effects:

[0014] The utility model can effectively and quickly cut paper through the staggered shredding rollers, thereby improving the shredding efficiency; the design of the debris drawer allows users to easily clean the collected debris, reducing the difficulty of cleaning; the design of the guide plate, support arm and connecting block ensures the stability of the shredder during operation and extends its service life; the design of the cleaning card strip helps to clean the residue on the shredding rollers, reducing the difficulty and frequency of maintenance; the reasonable structural design makes the shredder compact as a whole and takes up little space.

[0015] Based on the above structure, the internal space of the casing is divided into two independent chambers by a partition. A crushing component is provided in each chamber, and they work simultaneously to improve the efficiency of the crushing work. The crushing degree of each crushing component can be set separately, so that documents with different crushing requirements can be crushed at the same time.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the crushing component in the utility model.

[0020] Figure 3 It is a side view of the crushing component in the present invention.

[0021] Figure 4 This is a schematic diagram of the staggered arrangement of the crushing rollers in the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Paper shredder body; 11. Casing; 12. Side panels; 13. Collection bin; 14. Crumb drawer; 15. Equipment bin; 16. Guide plate; 17. Partition; 18. Support arm; 19. Bearing seat; 110. Shredder roller; 111. Drive gear; 112. Connecting block. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] See also Figure 1-3 A secure paper shredder for a digital printing press includes a paper shredder body 1, the paper shredder body 1 including a housing 11, a side panel 12 fixed to the side of the housing 11, a collection bin 13 disposed at the bottom of the housing 11, a debris drawer 14 movably disposed inside the collection bin 13, a guide plate 16 disposed on the inner side of the housing 11, a partition 17 disposed in the middle of the housing 11, and an equipment bin 15 disposed on the side of the housing 11;

[0027] A crushing assembly is symmetrically arranged inside the casing 11, and the crushing assembly includes crushing rollers 110 arranged in an interlaced manner, transmission teeth 111 arranged at one end of the crushing rollers 110, bearing seats 19 arranged at the ends of the crushing rollers 110, support arms 18 fixed to the sides of the bearing seats 19, and connecting blocks 112 fixed between the bearing seats 19.

[0028] Further explanation of the above structure is:

[0029] The casing 11 is the main external structure of the shredder, used to accommodate and protect the various internal components; the side panels 12 are fixed to the sides of the casing 11, which may be used to support or protect the casing 11, and are also the installation location of the operation panel or other accessories; the collection bin 13 is set at the bottom of the casing 11, used to collect shredded paper debris, and the debris drawer 14 is movably set inside the collection bin 13, which is convenient for users to remove debris and clean it.

[0030] A guide plate 16 is provided on the inside of the housing 11, and its main function is to guide paper into the shredding rollers 110 for shredding. A partition 17 is provided in the middle of the housing 11 to separate different working areas. An equipment compartment 15 is provided on the edge of the housing 11 for mounting electrical control components or drive components. The shredding rollers 110 in the shredding assembly are arranged in an interlaced manner. When they rotate relative to each other, they sandwich the paper and shear it into debris. A transmission tooth 111 is located at one end of the shredding roller 110 and is used to connect to a drive device to rotate the shredding roller 110. A bearing seat 19 is fixed to the end of the shredding roller 110 to support the shredding roller 110 and allow it to rotate.

[0031] The support arm 18 is fixed to the inner side of the casing 11 for connecting to the bearing seat 19 to ensure the stability of the crushing roller 110 . The connecting block 112 is fixed between two opposite bearing seats 19 for strengthening the stability of the bearing seat 19 or fixing the transmission gear 111 .

[0032] When a user puts paper into the shredder, the paper is first guided by the guide plate 16 between the two staggered rotating shredding rollers 110; the cutting edges of the shredding rollers 110 cut the paper into fine debris, and then these debris fall into the collection bin 13 through the discharge of the shredding rollers 110. The user can clean the collected debris by pulling out the debris drawer 14.

[0033] In addition, the lower end of the guide plate 16 is fixed to the bearing seat 19, which helps to ensure the stability of the guide plate 16; at the same time, the teeth on the inner side of the cleaning strip cooperate with the cutting edge of the shredding roller 110, which can assist in cleaning the residue on the shredding roller 110 when the shredder is working or cleaning, thereby ensuring the smooth operation of the shredder.

[0034] The staggered shredding rollers 110 can effectively and quickly cut paper, improving shredding efficiency; the design of the debris drawer 14 allows users to easily clean the collected debris, reducing the difficulty of cleaning; the design of the guide plate 16, support arm 18 and connecting block 112 ensures the stability of the shredder during operation and extends its service life; the design of the cleaning card strip helps to clean the residue on the shredding rollers 110, reducing the difficulty and frequency of maintenance; the reasonable structural design makes the shredder compact as a whole and takes up little space.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A secure shredder for a digital printing press, comprising a shredder body (1), characterized in that: The shredder body (1) comprises a casing (11), a side plate (12) fixed to the side of the casing (11), a collection bin (13) arranged at the bottom of the casing (11), a debris drawer (14) movably arranged inside the collection bin (13), a guide plate (16) arranged on the inner side of the casing (11), a partition (17) arranged in the middle of the casing (11), and an equipment bin (15) arranged at the edge of the casing (11); A crushing assembly is symmetrically arranged inside the housing (11), wherein the crushing assembly includes crushing rollers (110) arranged in an interlaced manner, a transmission tooth (111) arranged at one end of the crushing roller (110), a bearing seat (19) arranged at the end of the crushing roller (110), a support arm (18) fixed to the side of the bearing seat (19), and a connecting block (112) fixed between the bearing seats (19).

2. The secure paper shredder for a digital printing press according to claim 1, characterized in that: The lower branch of the partition (17) is matched with the intersection of the crushing roller (110), and the discharge point of the crushing roller (110) is matched with the collection bin (13).

3. The secure paper shredder for a digital printing press according to claim 1, characterized in that: The support arm (18) is fixed to the inner side of the housing (11), and the transmission gear (111) is located inside the equipment compartment (15).

4. The secure paper shredder for a digital printing press according to claim 1, characterized in that: The guide plate (16) is arranged above the crushing roller (110) to block the crushing roller, and the lower end of the guide plate (16) is fixed to the bearing seat (19).

5. The secure paper shredder for a digital printing press according to claim 1, characterized in that: A cleaning clip is fixed to the peripheral side of the bearing seat (19), and the inner teeth of the cleaning clip match the cutting edge of the crushing roller (110).

6. The secure paper shredder for a digital printing press according to claim 1, characterized in that: The inner side of the debris drawer (14) is magnetically engaged with the outer edge of the collection bin (13), and a handle is fixed at the middle position of the outer side surface of the debris drawer (14).

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