A trimming device for printed paper after cutting

Abstract

The utility model discloses a kind of neat devices after printing paper cutting, it is related to printing neat device technical field, including extrusion mechanism, it is used to extrude printing paper stack, it includes clamping plate, clamping plate is the smooth surface plate structure made of stainless steel, clamping plate can move in first direction, first direction is parallel with ground, after long time use, wear will be generated between mounting mechanism and drive structure, drive structure itself also can produce wear, at this moment, make the rubber pad connected with threaded bolt and screw rod one separate contact by spanner screwing hexagonal structure, staff can drive screw rod one rotation by hand wheel, since screw rod one is connected with the nut of base plate, screw rod one will move on the surface of base plate at this moment, to drive clamping plate to move, by adjusting the distance between clamping plate and base plate, to adapt the error caused by mechanical wear, without replacing entire drive structure, after adjusting, make rubber pad extrude screw rod one again.

Description

Technical Field

[0001] This utility model relates to the technical field of printing paper straightening devices, and in particular to a paper straightening device after printing paper has been cut. Background Technology

[0002] In the printing industry, after printing and cutting, printing paper needs to be neatly arranged for subsequent binding, packaging, transportation, or further processing. The neatness of the cut paper directly affects the efficiency of subsequent processes and the quality of the final product. If the cut paper is skewed, unevenly stacked, or has misaligned edges, it will not only increase the difficulty of subsequent binding processes and reduce production efficiency, but may also lead to product scrap and increased production costs.

[0003] Currently, most existing paper stacking devices use a double-threaded screw (with a motor) or cylinder to drive two clamping plates to hold the paper stack. Misalignment is corrected through "pushing / impact force" to align the stacked printing paper. However, after prolonged use, it has been found that the double-threaded screw or cylinder will wear down over time. Due to mechanical wear, the clamping plates will develop operational errors after prolonged use. This results in one clamping plate having a longer stroke than the other, causing one clamping plate to contact the paper stack while the other does not. Consequently, the paper stack will experience uneven stress, leading to warping on the side with greater stress, affecting product quality and reducing the yield of printed paper.

[0004] The existing solution is to directly replace the entire assembly (cylinder, motor, and lead screw, etc.) after the drive structure has errors. This solution not only requires workers to spend time disassembling the drive structure, which is time-consuming and labor-intensive and affects the company's production efficiency, but also increases the overall use and maintenance costs of the device when the drive structure is replaced. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a paper straightening device after printing paper is cut, which solves the problem that existing paper straightening devices require direct replacement of the entire drive structure after mechanical wear and tear over a long period of use, which is time-consuming, labor-intensive, and increases the overall use and maintenance costs of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A paper trimming device after printing paper is cut includes: The extrusion mechanism is used to extrude printed paper stacks. It includes clamps, which are plate-like structures with smooth surfaces made of stainless steel. Two extrusion mechanisms clamp each other and can straighten the two sides of the printed paper stack by pushing or impacting. Four extrusion mechanisms clamp each other and can straighten the four sides of the printed paper stack. The clamps can move in a first direction, which is parallel to the ground. The mounting mechanism is used to install the extrusion mechanism. The extrusion mechanism and the mounting mechanism are slidably connected. The distance between the mounting mechanism and the clamping plate can be adjusted. It can be connected to the drive structure of the external device. For example, the connection block and nut are connected to the external device by a double threaded screw. The screw drives the mounting mechanism to move the extrusion mechanism to clamp the printed paper stack neatly. The mounting mechanism can detect the distance between the clamping plate and itself. The driving mechanism is capable of driving the extrusion mechanism to move in a first direction and can also fix the extrusion mechanism.

[0007] Preferably, the mounting mechanism includes a base plate, with limiting sleeves provided at all four corners of the base plate. A T-shaped plate is fixedly connected to one side of the base plate by welding. The T-shaped plate is made of stainless steel and is used to mount the drive mechanism and to limit and guide the end of the grating scale.

[0008] Preferably, a reading head is fixedly connected to the side of the substrate near the T-shaped plate by screws. An LED light is fixedly installed on the top surface of the reading head by adhesive. The reading head is used to detect the distance between the substrate and the clamping plate in conjunction with a grating scale. The LED light can emit red and green light. Both the reading head and the LED light in this application need to be used in conjunction with an external PLC controller.

[0009] Preferably, guide rods are fixedly connected to the four corners of the clamping plate near the base plate by welding. The four guide rods are slidably engaged with four limiting sleeves. The guide rods, in conjunction with the limiting sleeves, limit and guide the movement of the clamping plate to prevent the clamping plate from tilting.

[0010] Preferably, a grating scale is fixedly connected to the side of the clamping plate near the substrate by screws. The grating scale is adapted to the reading head and is used to detect the distance between the clamping plate and the substrate.

[0011] Preferably, both the substrate and the T-shaped plate have through holes on their surfaces. The grating scale is slidably sleeved with the two through holes, and the two through holes serve as limit guides for the grating scale. The grating scale can move with the clamping plate, so that different positions of the grating scale come into contact with the reading head, allowing the reading head to read the scale at different positions, thereby determining the distance between the clamping plate and the substrate.

[0012] Preferably, the drive mechanism includes a lead screw, a nut is welded to the axis of the base plate, the lead screw is threaded to the nut, a handwheel is fixedly connected to one end of the lead screw, and a plane bearing is fixedly connected to the end of the lead screw away from the handwheel. Both the handwheel and the plane bearing are connected to the lead screw by welding. The handwheel facilitates the operator to rotate the lead screw, and the plane bearing is used to connect the lead screw to the guide rod, enabling the lead screw to rotate.

[0013] Preferably, the side of the planar bearing away from the lead screw is fixedly connected to the clamping plate by welding. The surface of the T-shaped plate is provided with a sliding sleeve, which is existing technology and allows shaft parts to slide and fit together. The lead screw slides and fits together with the T-shaped plate through the sliding sleeve. The planar bearing includes a fixed part and a movable part. The movable part is fixedly connected to the lead screw, and the fixed part is fixedly connected to the clamping plate, so that the lead screw can rotate and drive the clamping plate to move when the lead screw rotates.

[0014] Preferably, an L-shaped plate is fixedly connected to the top surface of the T-shaped plate by welding. The L-shaped plate is made of stainless steel. A nut is fixedly connected to the end of the L-shaped plate away from the T-shaped plate by welding. The nut is threadedly connected to a threaded bolt.

[0015] Preferably, a hexagonal structure is welded to the top of the threaded bolt. The hexagonal structure is made of stainless steel. A rubber pad is fixedly connected to the end of the threaded bolt away from the hexagonal structure by an adhesive. The rubber pad is in contact with the lead screw, and the rubber pad, together with the threaded bolt, compresses the lead screw to prevent the lead screw from rotating when the installation mechanism moves, which would cause the clamping plate to move.

[0016] In practical use, this application needs to be used in conjunction with the drive structure of the existing straightening device. The drive structure drives the installation mechanism to move, and the installation mechanism drives the pressing mechanism to move, clamping the printed paper stack to achieve the overall effect. After long-term use, wear will occur between the installation mechanism and the drive structure, and the drive structure itself will also wear. At this time, the rubber pad connected by the threaded bolt can be disengaged from the lead screw by turning the hexagonal structure with a wrench. The operator can then turn the lead screw by turning the handwheel. Since the lead screw is threadedly connected to the nut of the substrate, the lead screw will move on the surface of the substrate, thereby driving the clamping plate to move. By adjusting the distance between the clamping plate and the substrate, the error caused by mechanical wear can be adapted. There is no need to replace the entire drive structure. After adjustment, the rubber pad can be used to press the lead screw again. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a structural diagram of the installation mechanism and drive mechanism of this utility model; Figure 4 This is a structural diagram of the drive mechanism of this utility model.

[0019] Legend: 100, Mounting mechanism; 101, Base plate; 102, T-shaped plate; 103, Reading head; 104, LED light; 105, Limiting sleeve; 106, L-shaped plate; 107, Grating scale; 200, Extrusion mechanism; 201, Clamping plate; 202, Guide rod; 300, Drive mechanism; 301, Lead screw; 302, Handwheel; 303, Surface bearing; 304, Threaded bolt; 305, Hexagonal structure. Detailed Implementation

[0020] This application provides a paper straightening device after cutting, which effectively solves the problem that existing paper straightening devices require direct replacement of the entire drive structure after mechanical wear and tear over a long period of use, which is time-consuming, labor-intensive, and increases the overall use and maintenance costs of the device.

[0021] Example 1 After prolonged use, the existing alignment device's drive structure will experience mechanical wear, causing errors between the movement of the two clamping plates and the preset values. The current solution is to replace the entire assembly after the drive structure develops errors. This solution not only requires workers to spend time disassembling the drive structure, which is time-consuming and labor-intensive, affecting the company's production efficiency, but also increases the overall use and maintenance costs of the alignment device.

[0022] To address the problems existing in the prior art, this utility model provides a device for neatly cutting printed paper; like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the paper-cutting and straightening device includes an installation mechanism 100, a pressing mechanism 200, and a driving mechanism 300. The pressing mechanism 200 is used to press the stack of printed paper and includes a clamping plate 201. The clamping plate 201 is a smooth plate structure made of stainless steel and can move in a first direction parallel to the ground. The installation mechanism 100 is used to install the pressing mechanism 200. The pressing mechanism 200 is slidably connected to the installation mechanism 100. The distance between the installation mechanism 100 and the clamping plate 201 can be adjusted. The installation mechanism 100 can detect the distance between itself and the clamping plate 201. The driving mechanism 300 can drive the pressing mechanism 200 to move in the first direction and can fix the pressing mechanism 200.

[0023] like Figure 1 and Figure 2 As shown, the paper-cutting and straightening device includes a pressing mechanism 200 for pressing the paper stack. It includes a clamping plate 201, which is a smooth plate structure made of stainless steel. Two pressing mechanisms 200 clamp each other and can straighten the two sides of the paper stack by pushing or impacting. Four pressing mechanisms 200 clamp each other and can straighten the four sides of the paper stack. The clamping plate 201 can move in a first direction, which is parallel to the ground. like Figure 2 and Figure 3 As shown, the paper cutting and straightening device includes an installation mechanism 100 for installing a pressing mechanism 200. The pressing mechanism 200 is slidably connected to the installation mechanism 100. The distance between the installation mechanism 100 and the clamping plate 201 can be adjusted. It can be connected to the drive structure of an external device. For example, the connection between the external device and the connecting block and nut is a double-threaded screw. The screw drives the installation mechanism 100 to move the pressing mechanism 200 to clamp the paper stacks neatly. The installation mechanism 100 can detect the distance between the clamping plate 201 and itself. like Figure 3 and Figure 4 As shown, the paper cutting and straightening device includes a drive mechanism 300, which can drive the extrusion mechanism 200 to move in a first direction and can fix the extrusion mechanism 200.

[0024] like Figure 2 and Figure 3 As shown, the mounting mechanism 100 includes a base plate 101. Each of the four corners of the base plate 101 is provided with a limiting sleeve 105. A T-shaped plate 102 is fixedly connected to one side of the base plate 101 by welding. The T-shaped plate 102 is made of stainless steel and is used to mount the drive mechanism 300 and to limit and guide the end of the grating scale 107.

[0025] like Figure 2 and Figure 3 As shown, a reading head 103 is fixedly connected to the side of the substrate 101 near the T-shaped plate 102 by screws. An LED light 104 is fixedly mounted on the top surface of the reading head 103 by adhesive. The reading head 103 is used in conjunction with the grating scale 107 to detect the distance between the substrate 101 and the clamping plate 201. The LED light 104 can emit red and green light. Both the reading head 103 and the LED light 104 in this application need to be used in conjunction with an external PLC controller.

[0026] like Figure 2 and Figure 3 As shown, guide rods 202 are fixedly connected to the four corners of the clamping plate 201 near the base plate 101 by welding. The four guide rods 202 are slidably sleeved with the four limiting sleeves 105 respectively. The guide rods 202 cooperate with the limiting sleeves 105 to limit and guide the movement of the clamping plate 201 and prevent the clamping plate 201 from tilting.

[0027] like Figure 2 and Figure 3 As shown, a grating scale 107 is fixedly connected to the side of the clamping plate 201 near the substrate 101 by screws. The grating scale 107 is adapted to the reading head 103 and is used to detect the distance between the clamping plate 201 and the substrate 101.

[0028] like Figure 2 and Figure 3 As shown, through holes are provided on the surfaces of both the substrate 101 and the T-shaped plate 102. The grating scale 107 is slidably sleeved with the two through holes. The two through holes serve as limit guides for the grating scale 107. The grating scale 107 can move with the clamp 201, so that different positions of the grating scale 107 contact the reading head 103, allowing the reading head 103 to read the scale at different positions, thereby determining the distance between the clamp 201 and the substrate 101.

[0029] like Figure 3 and Figure 4 As shown, the drive mechanism 300 includes a lead screw 301. A nut is welded to the axis of the base plate 101. The lead screw 301 is threadedly connected to the nut. A handwheel 302 is fixedly connected to one end of the lead screw 301. A plane bearing 303 is fixedly connected to the end of the lead screw 301 away from the handwheel 302. Both the handwheel 302 and the plane bearing 303 are connected to the lead screw 301 by welding. The handwheel 302 facilitates the operator to rotate the lead screw 301. The plane bearing 303 is used to connect the lead screw 301 and the guide rod 202, enabling the lead screw 301 to rotate.

[0030] like Figure 3 and Figure 4As shown, the side of the planar bearing 303 away from the lead screw 301 is fixedly connected to the clamping plate 201 by welding. The surface of the T-shaped plate 102 is provided with a sliding sleeve, which is existing technology and allows shaft parts to slide and fit together. The lead screw 301 is slidably fitted to the T-shaped plate 102 through the sliding sleeve. The planar bearing 303 includes a fixed part and a movable part. The movable part is fixedly connected to the lead screw 301, and the fixed part is fixedly connected to the clamping plate 201, so that the lead screw 301 can rotate and can drive the clamping plate 201 to move when the lead screw 301 rotates.

[0031] like Figure 3 and Figure 4 As shown, an L-shaped plate 106 is fixedly connected to the top surface of the T-shaped plate 102 by welding. The L-shaped plate 106 is made of stainless steel. A nut is fixedly connected to the end of the L-shaped plate 106 away from the T-shaped plate 102 by welding. The nut is threadedly connected to a threaded bolt 304.

[0032] like Figure 3 and Figure 4 As shown, a hexagonal structure 305 is welded to the top of the threaded bolt 304. The hexagonal structure 305 is made of stainless steel. A rubber pad is fixedly connected to the end of the threaded bolt 304 away from the hexagonal structure 305 by adhesive. The rubber pad is in contact with the lead screw 301 by compression. The rubber pad cooperates with the threaded bolt 304 to compress the lead screw 301, preventing the lead screw 301 from rotating when the mounting mechanism 100 moves, which would cause the clamping plate 201 to move.

[0033] In practical use, this application needs to be used in conjunction with the drive structure of the existing straightening device. The drive structure drives the installation mechanism 100 to move, and the installation mechanism 100 drives the pressing mechanism 200 to move, clamping the printed paper stack to achieve the overall effect. After long-term use, wear will occur between the installation mechanism 100 and the drive structure, and the drive structure itself will also wear. At this time, the rubber pad connected to the threaded bolt 304 can be disengaged from the lead screw 301 by turning the hexagonal structure 305 with a wrench. The operator can then drive the lead screw 301 to rotate through the handwheel 302. Since the lead screw 301 is threadedly connected to the nut of the substrate 101, the lead screw 301 will move on the surface of the substrate 101, thereby driving the clamping plate 201 to move. By adjusting the distance between the clamping plate 201 and the substrate 101, the error caused by mechanical wear can be adapted, without replacing the entire drive structure. After adjustment, the rubber pad can be used to re-press the lead screw 301.

[0034] Before adjusting the position of the extrusion mechanism 200, this application requires first measuring the movement error of the mounting mechanism 100 caused by mechanical wear using measuring tools, and then inputting the error value into the external PLC controller. The PLC controller uses the error value to calculate the distance between the clamping plate 201 and the base plate 101 that should be sufficient to offset the error (the error value is the set movement distance minus the actual movement distance; for example, if the mounting mechanism 100 is set to move 10 cm and actually moves 9 cm, the error value is 1 cm, and increasing the distance between the clamping plate 201 and the base plate 101 by 1 cm will offset the error). After the error value is input, the LED light 104 lights up red. The operator adjusts the distance between the lead screw 301 and the base plate 101 using the drive mechanism 300. The grating scale 107, together with the reading head 103, detects the distance. When the distance between the clamping plate 201 and the base plate 101 reaches the calculated value (the calculated value is the data calculated by the PLC controller based on the error value), the LED light 104 lights up green, and the adjustment is completed.

[0035] The above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A device for neatly cutting printed paper, characterized in that, include; The extrusion mechanism (200) for extruding stacks of printed paper includes a clamping plate (201) which is a smooth plate-like structure made of stainless steel and is movable in a first direction parallel to the ground. Mounting mechanism (100) for mounting extrusion mechanism (200), extrusion mechanism (200) is slidably connected to mounting mechanism (100), the distance between mounting mechanism (100) and clamping plate (201) can be adjusted, and mounting mechanism (100) can detect the distance between clamping plate (201) and itself; A drive mechanism (300) is capable of driving the extrusion mechanism (200) to move in a first direction and is capable of fixing the extrusion mechanism (200).

2. The paper trimming device as described in claim 1, characterized in that: The mounting mechanism (100) includes a base plate (101), and each of the four corners of the base plate (101) is provided with a limiting sleeve (105). A T-shaped plate (102) is fixedly connected to one side of the base plate (101).

3. The paper trimming device as described in claim 2, characterized in that: A reading head (103) is fixedly connected to the side of the substrate (101) near the T-shaped plate (102), and an LED light (104) is fixedly installed on the top surface of the reading head (103).

4. The paper trimming device as described in claim 3, characterized in that: The four corners of the clamping plate (201) near the base plate (101) are fixedly connected to guide rods (202) by welding. The four guide rods (202) are respectively slidably sleeved with the four limiting sleeves (105).

5. The paper trimming device as described in claim 4, characterized in that: The clamp (201) is fixedly connected to a grating scale (107) on the side near the base plate (101) by screws. The grating scale (107) is adapted to the reading head (103).

6. The paper trimming device as described in claim 5, characterized in that: Both the substrate (101) and the T-shaped plate (102) have through holes on their surfaces, and the grating scale (107) is slidably sleeved with the two through holes.

7. The paper trimming device as described in claim 6, characterized in that: The drive mechanism (300) includes a lead screw (301), a nut is provided at the axis of the base plate (101), the lead screw (301) is threadedly connected to the nut, a handwheel (302) is fixedly connected to one end of the lead screw (301), and a plane bearing (303) is fixedly connected to the end of the lead screw (301) away from the handwheel (302).

8. The paper trimming device as described in claim 7, characterized in that: The side of the planar bearing (303) away from the lead screw (301) is fixedly connected to the clamping plate (201). The surface of the T-shaped plate (102) is provided with a sliding sleeve. The lead screw (301) is slidably sleeved with the T-shaped plate (102) through the sliding sleeve.

9. A paper trimming device as described in claim 8, characterized in that: The top surface of the T-shaped plate (102) is fixedly connected to an L-shaped plate (106) by welding. The end of the L-shaped plate (106) away from the T-shaped plate (102) is fixedly connected to a nut, and the nut is threadedly connected to a threaded bolt (304).

10. A paper trimming device as described in claim 9, characterized in that: The top of the threaded bolt (304) is welded with a hexagonal structure (305), which is made of stainless steel. A rubber pad is fixedly connected to the end of the threaded bolt (304) away from the hexagonal structure (305), and the rubber pad is in contact with the lead screw (301) by compression.

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