Paper cutting equipment for paper printing products

Abstract

The utility model discloses paper cutting equipment for paper printing products, which relates to the technical field of paper cutting equipment and comprises a cutting worktable, a pair of fixing plates and a pair of first sliding rod cylinders are fixedly connected to the top end of the cutting worktable, and a pair of second sliding rod cylinders are fixedly connected to the top end of the cutting worktable. A connecting straight plate is fixedly connected between the output ends of the pair of first sliding rod air cylinders, a paper cutting tool is fixedly connected to the bottom end of the connecting straight plate, a cutting groove is formed in the top end of the cutting workbench, and the paper cutting tool is located at the top of the cutting groove. And the clamping mechanism is arranged at the top of the cutting workbench. Paper can be clamped and fixed in the left-right direction and the front-back direction through the clamping mechanism, so that the paper is kept stable; and meanwhile, in the paper cutting process, the paper is pressed and fixed through the pressing mechanism, the paper is fixed in the vertical direction, the paper is not prone to moving and skewing in the paper cutting process, cutting flaws are reduced, and the cutting quality of the paper is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper cutting equipment, and in particular relates to a paper cutting device for paper printing products. Background Technology

[0002] Paper cutting equipment is a specialized device for cutting paper, widely used in modern office environments, printing plants, schools, and other similar settings. After printing, the paper needs to be cut using paper cutting equipment.

[0003] For example, CN219946355U discloses a paper cutting device for printed paper products, including a base. Support plates are fixedly connected to the front and rear sides of the base. A hydraulic device is fixedly connected to the top of the support plates. A cutter is fixedly connected to the output shaft of the hydraulic device. The cutter is located above the center of the base, and a cross-shaped groove is formed at the center of the base. In this paper cutting device, two clamping plates are manually moved to increase the distance between them. Paper is placed on top of the base, and the clamping plates are released. Under the elastic force of the connecting springs, the clamping plates return to their original position and tightly adhere to the sides of the paper. The adjustable distance between the clamping plates can increase the clamping range, and the connecting springs ensure the clamping force of the plates on the paper, thus preventing the paper at the top from sliding and scattering after cutting due to being pushed by the thicker area of ​​the cutter.

[0004] The above-mentioned patent has the following defects in use:

[0005] The paper cutting device mainly relies on the squeezing and fixing of two clamps in the left and right directions to fix the paper, but no fixing is set in other directions. This makes the paper not fixed enough and comprehensive, which makes the paper easy to move and skew during the cutting process. As a result, the edges of the cut paper are not straight or have angular deviations, thus affecting the cutting quality. Therefore, this utility model proposes a paper cutting device for paper printing products. Utility Model Content

[0006] This utility model provides a paper cutting device for paper printing products. The clamping mechanism can clamp and fix the paper from the left and right and front and back directions to keep it stable. At the same time, the pressing mechanism presses down and fixes the paper during the cutting process, thereby fixing the paper from the top and bottom directions. This makes it less likely for the paper to move or skew during the cutting process, reduces cutting defects, and ensures cutting quality. In summary, this solves the problems in the background technology.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model discloses a paper cutting device for printed paper products, comprising:

[0009] A cutting workbench, wherein a pair of fixed plates are fixedly connected to the top of the cutting workbench, a pair of first sliding cylinders are fixedly connected to the top of the cutting workbench, and a connecting straight plate is fixedly connected between the output ends of the pair of first sliding cylinders. A paper cutting knife is fixedly connected to the bottom end of the connecting straight plate. A cutting groove is chiseled on the top of the cutting workbench, and the paper cutting knife is located at the top of the cutting groove.

[0010] A clamping mechanism is disposed on the top of the cutting table and is used to clamp and fix the paper from the left and right and front and back directions.

[0011] A pressing mechanism is provided on both sides of the connecting straight plate, and the pressing mechanism is used to press and fix the paper from above;

[0012] The clamping mechanism includes a pair of telescopic cylinders, which are respectively embedded and connected to the outer walls of a pair of fixed plates. The output ends of the pair of telescopic cylinders are fixedly connected to a first clamping plate. The top ends of the pair of first clamping plates are fixedly connected to a pair of T-shaped rods and an electromagnet. The ends of the pair of T-shaped rods that are close to each other are fixedly connected to the two ends of the electromagnet. The outer walls of the pair of T-shaped rods are fitted with movable magnets and a first spring. The two ends of the first spring are fixedly connected to the opposite sides of the electromagnet and the movable magnet. The ends of the pair of movable magnets that are close to the paper cutter are fixedly connected to a second clamping plate.

[0013] Furthermore, the electromagnet and the movable magnet attract each other on opposite sides, and the magnetic strength of the electromagnet is stronger than that of the movable magnet.

[0014] Furthermore, a pair of first sliders are fixedly connected to the bottom ends of each pair of first clamping plates, and two pairs of first sliding grooves are chiseled at the top of the cutting workbench, with the first sliders located in the first sliding grooves and slidably connected thereto.

[0015] Furthermore, the pressing mechanism includes a pair of top cylinders, and side plates are fixedly connected to both sides of the connecting straight plate. The top cylinders are embedded in and connected to the side plates. A piston rod is slidably connected inside each of the pair of top cylinders, and a round hole is drilled at the inner bottom end of the top cylinder. The bottom end of the piston rod passes through the round hole and is fixedly connected to a fixed pressure plate. A second spring is sleeved on the outer wall of the piston rod, and the two ends of the second spring are fixedly connected to the inner top end of the piston rod and the inner bottom end of the top cylinder, respectively. A pair of movable pressure plates are slidably connected to the outer wall of the fixed pressure plate.

[0016] Furthermore, a U-shaped plate is fixedly connected to the top of the fixed pressure plate, and the U-shaped plate is sleeved on the outer wall of the piston rod. A lifting sleeve plate is sleeved on the outer wall of the piston rod. A pair of second sliding cylinders are fixedly connected to the top of the fixed pressure plate, and the output ends of the pair of second sliding cylinders are respectively fixedly connected to both sides of the lifting sleeve plate. A pair of movable inclined rods are provided on the top of the fixed pressure plate, and a pair of connecting pieces are rotatably connected to the outer wall of the movable inclined rods near both ends through a rotating shaft and bearing. One end of the pair of connecting pieces on one side is fixedly connected to the side of the lifting sleeve plate near the movable inclined rod, and the bottom end of the pair of connecting pieces on the other side is fixedly connected to the top of the movable pressure plate.

[0017] Furthermore, four pairs of second sliders are fixedly connected to the outer wall of the fixed pressure plate, and two pairs of second sliding grooves are carved into the inner wall of each pair of movable pressure plates, with the second sliders located in the second sliding grooves and slidably connected to them.

[0018] Furthermore, the bottom ends of the fixed pressure plate and the movable pressure plate are flush, and the paper cutting blade is higher than the fixed pressure plate and the movable pressure plate.

[0019] The present invention has the following advantages over the prior art:

[0020] This technical solution, through its clamping mechanism, can drive a pair of first clamping plates to clamp and fix the paper in the left-right direction, and then use two pairs of second clamping plates to clamp and fix the paper in the front-back direction, thereby achieving clamping and fixing of the paper from multiple directions. This keeps the paper stable during the cutting process, making it less likely for the cut paper to have uneven edges or angular deviations, thus ensuring the cutting quality.

[0021] This technical solution uses a pressing mechanism to compress and fix the paper along the vertical direction when the paper cutter cuts downwards. At the same time, the length between the fixed and movable pressure plates can be adjusted to meet the pressing and fixing of paper of different widths, improving its applicability and further fixing the paper, thereby improving the stability of the paper cutting process.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a three-dimensional structural diagram of a paper cutting device for paper printing products according to the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the cutting workbench and clamping mechanism in this utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 This is a three-dimensional structural diagram of the pressing mechanism and the paper cutting blade in this utility model;

[0028] Figure 5 This is a partial cross-sectional view of the pressing mechanism in this utility model;

[0029] Figure 6 This is a partial cross-sectional view of the fixed pressure plate and the movable pressure plate in this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Cutting worktable; 2. Fixed plate; 3. Clamping mechanism; 301. Telescopic cylinder; 302. First clamping plate; 303. Second clamping plate; 304. T-shaped rod; 305. Movable magnet; 306. Electromagnet; 307. First spring; 308. First slider; 309. First slide groove; 4. Cutting groove; 5. Connecting straight plate; 6. Paper cutter; 7. Side plate; 8. First slide rod cylinder; 9. Pressing mechanism; 901. Top cylinder; 902. Piston rod; 903. Second spring; 904. Fixed pressure plate; 905. Movable pressure plate; 906. U-shaped plate; 907. Lifting sleeve plate; 908. Second slide rod cylinder; 909. Movable diagonal rod; 9010. Second slider; 9011. Second slide groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation

[0034] Please see Figures 1-6 As shown, this utility model discloses a paper cutting device for printed paper products, comprising:

[0035] A cutting workbench 1 is provided. A pair of fixed plates 2 are fixedly connected to the top of the cutting workbench 1. A pair of first sliding cylinders 8 are fixedly connected to the top of the cutting workbench 1. A connecting straight plate 5 is fixedly connected between the output ends of the pair of first sliding cylinders 8. A paper cutting knife 6 is fixedly connected to the bottom end of the connecting straight plate 5. A cutting groove 4 is chiseled on the top of the cutting workbench 1. The paper cutting knife 6 is located on the top of the cutting groove 4.

[0036] Clamping mechanism 3 is located on the top of the cutting workbench 1 and is used to clamp and fix the paper from the left and right and front and back directions; pressing mechanism 9 is located on both sides of the connecting straight plate 5 and is used to press and fix the paper from above.

[0037] The clamping mechanism 3 includes a pair of telescopic cylinders 301, which are respectively embedded and connected to the outer walls of a pair of fixed plates 2. The output ends of the pair of telescopic cylinders 301 are fixedly connected to a first clamping plate 302. The top ends of the pair of first clamping plates 302 are fixedly connected to a pair of T-shaped rods 304 and an electromagnet 306. The ends of the pair of T-shaped rods 304 that are close to each other are fixedly connected to the two ends of the electromagnet 306. The outer walls of the pair of T-shaped rods 304 are fitted with movable magnet blocks 305 and a first spring 307. The two ends of the first spring 307 are fixedly connected to the opposite sides of the electromagnet 306 and the movable magnet blocks 305. The ends of the pair of movable magnet blocks 305 that are close to the paper cutter 6 are fixedly connected to a second clamping plate 303.

[0038] In the specific implementation process, the paper to be cut is placed on the cutting worktable 1. A pair of telescopic cylinders 301 drive a pair of first clamping plates 302 to move towards each other until they contact the left and right ends of the paper. Then, the electromagnet 306 is energized, generating magnetism and attracting a pair of movable magnet blocks 305 to move towards each other along a pair of T-shaped rods 304 towards the electromagnet 306. This causes the second clamping plates 303 to move towards each other until they contact the front and rear ends of the paper. This achieves clamping and fixing of the paper from the left and right and front and rear directions, keeping the paper stable during the cutting process and avoiding problems such as uneven edges or angular deviations in the cut paper, thus ensuring the cutting quality.

[0039] In this case, the electromagnet 306 and the movable magnet 305 attract each other on opposite sides, and the magnetic strength of the electromagnet 306 is stronger than that of the movable magnet 305.

[0040] When the electromagnet 306 is energized, it generates magnetism. Since its magnetic strength is stronger than that of the movable magnet 305, it can attract a pair of movable magnets 305 to move towards each other, so as to drive a pair of second clamping plates 303 to clamp and fix the paper in the front-back direction. When the electromagnet 306 is de-energized, the pair of movable magnets 305 attracted by its magnetism will separate and reset under the elastic action of the first spring 307.

[0041] Among them, a pair of first sliders 308 are fixedly connected to the bottom end of each pair of first clamping plates 302, and two pairs of first grooves 309 are chiseled at the top of the cutting workbench 1, and the first sliders 308 are located in the first grooves 309 and are slidably connected to them.

[0042] By sliding the first slider 308 within the first groove 309, sliding assistance can be provided when the first clamping plate 302 moves, thus maintaining its stable movement. Specific Implementation

[0043] Please see Figure 1 and Figures 4-6 As shown, in a preferred embodiment, the pressing mechanism 9 includes a pair of top cylinders 901. Side plates 7 are fixedly connected to both sides of the connecting straight plate 5, and the top cylinders 901 are embedded in the side plates 7. A piston rod 902 is slidably connected inside the pair of top cylinders 901. A round hole is drilled at the bottom inner end of the top cylinder 901. The bottom end of the piston rod 902 passes through the round hole and is fixedly connected to a fixing plate 904. A second spring 903 is sleeved on the outer wall of the piston rod 902, and the two ends of the second spring 903 are fixedly connected to the top inner end of the piston rod 902 and the bottom inner end of the top cylinder 901, respectively. A pair of movable pressure plates 905 are slidably connected to the outer wall of the fixing plate 904.

[0044] In the specific implementation process, a pair of first sliding cylinders 8 drive the paper cutter 6 to move downward through the connecting straight plate 5. At the same time, a pair of side plates 7 and the top cylinder 901 also move downward synchronously with the connecting straight plate 5, driving the piston rod 902, the fixed pressure plate 904, and the pair of movable pressure plates 905 to move downward until the bottom ends of the fixed pressure plate 904 and the pair of movable pressure plates 905 contact the top end of the paper. Immediately afterwards, the pair of first sliding cylinders 8 drive the connecting straight plate 5 and the paper cutter 6 to continue moving downward, while the top cylinder 901 also continues to move. The corresponding top end of the piston rod 902 extends in the opposite direction into the top cylinder 901, so that the fixed pressure plate 904 and the pair of movable pressure plates 905 squeeze and fix the paper from the top and bottom, so as to keep the paper stable during the cutting process.

[0045] The top of the fixed pressure plate 904 is fixedly connected to a U-shaped plate 906, which is sleeved on the outer wall of the piston rod 902. A lifting sleeve plate 907 is sleeved on the outer wall of the piston rod 902. A pair of second slide cylinders 908 are fixedly connected to the top of the fixed pressure plate 904, and the output ends of the pair of second slide cylinders 908 are fixedly connected to both sides of the lifting sleeve plate 907. A pair of movable inclined rods 909 are provided on the top of the fixed pressure plate 904. A pair of connecting pieces are rotatably connected to the outer wall of the movable inclined rods 909 near both ends through a rotating shaft and bearing. One end of the pair of connecting pieces on one side is fixedly connected to the side of the lifting sleeve plate 907 near the movable inclined rod 909, and the bottom end of the pair of connecting pieces on the other side is fixedly connected to the top of the movable pressure plate 905.

[0046] A pair of second slide cylinders 908 drive the lifting sleeve 907 to move downward along the piston rod 902, causing it to drive a pair of movable inclined rods 909 to move apart, squeezing a pair of movable pressure plates 905 to move apart, extending the total length between the fixed pressure plate 904 and the pair of movable pressure plates 905. This allows for the adjustment of the total length between the fixed pressure plate 904 and the movable pressure plates 905 to meet the pressing and fixing of paper of different widths, thus improving its applicability.

[0047] The outer wall of the fixed pressure plate 904 is fixedly connected with four pairs of second sliders 9010, and the inner wall of each pair of movable pressure plates 905 is chiseled with two pairs of second sliding grooves 9011, and the second sliders 9010 are located in the second sliding grooves 9011 and are slidably connected to them.

[0048] By sliding the second slider 9010 within the second slide groove 9011, the movement of the movable pressure plate 905 can be assisted by sliding, thus maintaining its stable movement.

[0049] The bottom ends of the fixed pressure plate 904 and the movable pressure plate 905 are flush, and the paper cutting blade 6 is higher than the fixed pressure plate 904 and the movable pressure plate 905.

[0050] By setting the paper cutter 6 higher than the fixed pressure plate 904 and the movable pressure plate 905, when the paper cutter 6 cuts downwards, the fixed pressure plate 904 and the movable pressure plate 905 move downwards synchronously and first contact the top of the paper to squeeze and fix it, so as to facilitate stable cutting later.

[0051] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0052] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0053] The working principle of this utility model is as follows:

[0054] In use, after the paper to be cut is placed on the cutting worktable 1, a pair of telescopic cylinders 301 are first driven to move a pair of first clamping plates 302 toward each other, causing the first clamping plates 302 to contact the left and right ends of the paper. Next, an electromagnet 306 is energized, generating magnetism and attracting a pair of movable magnets 305 to move toward each other along a pair of T-shaped rods 304 towards the electromagnet 306. This causes the pair of second clamping plates 303 to move toward each other until they contact the front and rear ends of the paper, thus clamping and fixing the paper from the left, right, front, and back directions. Immediately afterward, a pair of second sliding cylinders 908 drive a lifting sleeve 907 to move downward along the piston rod 902, causing a pair of movable inclined rods 909 to move apart, squeezing a pair of movable pressure plates 905 apart, extending the distance between the fixed pressure plate 904 and the pair of movable pressure plates 905. The length between the fixed pressure plate 904 and the movable pressure plate 905 is adjusted according to the width of the paper to match the total length. Next, a pair of first sliding cylinders 8 drive the paper cutter 6 to move downward through the connecting straight plate 5. At the same time, a pair of side plates 7 and the top cylinder 901 also move downward synchronously with the connecting straight plate 5, driving the piston rod 902, the fixed pressure plate 904, and the pair of movable pressure plates 905 to move downward until the bottom ends of the fixed pressure plate 904 and the pair of movable pressure plates 905 contact the top end of the paper. As the connecting straight plate 5 and the paper cutter 6 continue to move downward, the top cylinder 901 also continues to move. The corresponding top end of the piston rod 902 extends in the opposite direction into the top cylinder 901, so that the fixed pressure plate 904 and the pair of movable pressure plates 905 squeeze and fix the paper from the top and bottom. When the paper cutter 6 contacts the top end of the paper, it begins to cut it.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A paper cutting device for printed paper products, characterized in that, include: A cutting workbench (1) is provided, with a pair of fixed plates (2) fixedly connected to the top of the cutting workbench (1), a pair of first sliding cylinders (8) fixedly connected to the top of the cutting workbench (1), and a connecting straight plate (5) fixedly connected between the output ends of the pair of first sliding cylinders (8), and a paper cutting knife (6) fixedly connected to the bottom end of the connecting straight plate (5), and a cutting groove (4) is chiseled on the top of the cutting workbench (1), and the paper cutting knife (6) is located on the top of the cutting groove (4); A clamping mechanism (3) is provided on the top of the cutting table (1) and is used to clamp and fix the paper from the left and right and front and back directions; The pressing mechanism (9) is disposed on both sides of the connecting straight plate (5) and is used to press and fix the paper from above; The clamping mechanism (3) includes a pair of telescopic cylinders (301), which are respectively embedded and connected to the outer walls of a pair of fixed plates (2). The output ends of the pair of telescopic cylinders (301) are fixedly connected to a first clamping plate (302). The top ends of the pair of first clamping plates (302) are fixedly connected to a pair of T-shaped rods (304) and an electromagnet (306). The ends of the pair of T-shaped rods (304) that are close to each other are fixedly connected to the two ends of the electromagnet (306). The outer walls of the pair of T-shaped rods (304) are fitted with movable magnet blocks (305) and a first spring (307). The two ends of the first spring (307) are fixedly connected to the opposite sides of the electromagnet (306) and the movable magnet blocks (305). The ends of the pair of movable magnet blocks (305) that are close to the paper cutter (6) are fixedly connected to a second clamping plate (303).

2. A paper sheet printing product cutting apparatus according to claim 1, characterized by The electromagnet (306) and the movable magnet (305) attract each other on opposite sides, and the magnetic strength of the electromagnet (306) is stronger than that of the movable magnet (305).

3. A paper sheet printing product cutting apparatus according to claim 1, wherein A pair of first sliders (308) are fixedly connected to the bottom ends of each pair of first clamping plates (302). The top of the cutting workbench (1) is chiseled with two pairs of first grooves (309), and the first sliders (308) are located in the first grooves (309) and are slidably connected to them.

4. A paper sheet printing product cutting apparatus according to claim 1, wherein The pressing mechanism (9) includes a pair of top cylinders (901). Side plates (7) are fixedly connected to both sides of the connecting straight plate (5), and the top cylinders (901) are embedded in the side plates (7). A piston rod (902) is slidably connected inside the pair of top cylinders (901). A round hole is drilled at the bottom of the inner end of the top cylinder (901). The bottom end of the piston rod (902) passes through the round hole and is fixedly connected to a fixed pressure plate (904). A second spring (903) is sleeved on the outer wall of the piston rod (902), and the two ends of the second spring (903) are fixedly connected to the top inner end of the piston rod (902) and the bottom inner end of the top cylinder (901), respectively. A pair of movable pressure plates (905) are slidably connected to the outer wall of the fixed pressure plate (904).

5. A paper sheet printing product cutting apparatus according to claim 4, wherein The top of the fixed pressure plate (904) is fixedly connected to a U-shaped plate (906), and the U-shaped plate (906) is sleeved on the outer wall of the piston rod (902). A lifting sleeve plate (907) is sleeved on the outer wall of the piston rod (902). The top of the fixed pressure plate (904) is fixedly connected to a pair of second slide cylinders (908), and the output ends of the pair of second slide cylinders (908) are fixedly connected to both sides of the lifting sleeve plate (907). The top of the fixed pressure plate (904) is provided with a pair of movable inclined rods (909), and a pair of connecting pieces are rotatably connected to the outer wall of the movable inclined rods (909) near both ends through a rotating shaft and bearing. One end of the pair of connecting pieces on one side is fixedly connected to the side of the lifting sleeve plate (907) near the movable inclined rod (909), and the bottom end of the pair of connecting pieces on the other side is fixedly connected to the top of the movable pressure plate (905).

6. The paper cutting equipment for printed paper products according to claim 4, characterized in that, The outer wall of the fixed pressure plate (904) is fixedly connected with four pairs of second sliders (9010). The inner wall of each pair of movable pressure plates (905) is chiseled with two pairs of second sliding grooves (9011), and the second sliders (9010) are located in the second sliding grooves (9011) and are slidably connected to them.

7. A paper sheet printing product cutting apparatus according to claim 4, wherein The bottom ends of the fixed pressure plate (904) and the movable pressure plate (905) are flush, and the paper cutting blade (6) is higher than the fixed pressure plate (904) and the movable pressure plate (905).

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