Surface printing device for plastic floor

Abstract

A surface printing device for a plastic floor relates to the field of printing devices and comprises a conveying mechanism and a roller printing mechanism, the conveying mechanism is located between a roller printing base and a printing roller and located below the printing roller, an intermittent reciprocating pushing device is arranged on the roller printing mechanism, and the intermittent reciprocating pushing device is arranged on the roller printing mechanism. The roller printing device has the beneficial effects that in the using process, the contact position of a hard plate and the printing roller is intermittently changed, so that the situation that printing is not clear due to the rubber fatigue phenomenon within the normal operation time of equipment is avoided, and the service life of the equipment is prolonged. And meanwhile, damage to the printing roller due to the fact that the hard plate is clamped below the printing roller during emergency shutdown is avoided.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a surface printing device for plastic flooring. Background Technology

[0002] As is well known, plastic flooring is flooring made of plastic materials. It boasts advantages such as being environmentally friendly, antibacterial, safe, slip-resistant, and wear-resistant, leading to its widespread use. However, during the production and processing of plastic flooring, printing is often required to enhance its aesthetics. Conventional rigid PVC sheets typically use roller printing for mass production. The rollers press the corresponding patterns onto the rigid sheet. During production, the rubber on the rollers deforms under pressure, and friction between the rollers and the rigid sheet generates heat. Since rigid sheets are typically conveyed along a fixed trajectory, and the specifications of the sheets on a production line are uniform, the area of ​​contact between the rollers and the sheet is relatively fixed. Prolonged contact and deformation in the same area can lead to rubber fatigue, especially at the edges of the sheet where stress concentration accelerates fatigue. After fatigue, the rubber's rebound efficiency decreases during normal equipment operation, altering the pressure on the rigid sheet and resulting in unclear printing. Therefore, a surface printing device for plastic flooring is proposed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a surface printing device for plastic flooring.

[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0005] A surface printing device for plastic flooring includes a conveying mechanism and a roller printing mechanism. The roller printing mechanism includes a roller printing base, a roller printing shaft, a printing roller, a power assembly, a first shaft support, and a second shaft support. Both ends of the roller printing shaft are rotatably connected to the first shaft support and the second shaft support, respectively. The printing roller is sleeved on the roller printing shaft and is located in the middle of the roller printing shaft. The bottom end of the first shaft support is connected to the upper surface of the roller printing base, and the bottom end of the second shaft support is connected to the upper surface of the roller printing base. A power assembly is provided on the outer side of the second shaft support, and the power assembly is connected to the roller printing shaft. The conveying mechanism is located between the printing roller base and the printing roller, and is located below the printing roller. The upper surface of the printing roller base is provided with an intermittent reciprocating pushing device outside the first rotating shaft support. The pushing end of the intermittent reciprocating pushing device is fixedly connected to the first rotating shaft support. The bottom end of the first rotating shaft support is slidably connected to the upper surface of the printing roller base through a sliding component. The bottom end of the second rotating shaft support is slidably connected to the upper surface of the printing roller base through a sliding component. The sensing end of the intermittent reciprocating pushing device is in contact with the lower surface of the sheet material being transported on the conveying mechanism. The upper surface of the conveying mechanism is provided with a warning device.

[0006] The intermittent reciprocating pushing device comprises a pushing component, a wire, and a sensing control component. The pushing component is connected to the upper surface of the roller printing base and is located outside the first rotating shaft support. The pushing end of the pushing component is connected to the first rotating shaft support. The sensing control component is connected to the roller printing base and is in contact with the lower surface of the sheet material being transported on the conveying mechanism. The sensing control component is electrically connected to the pushing component via a wire and is used to control the start and stop of the pushing component.

[0007] The conveying mechanism includes a conveying base, a conveying shaft, and a conveyor belt. There are two conveying bases. The two ends of the conveying shaft are rotatably connected to the conveying bases respectively. The inner wall of the conveyor belt is slidably connected to the conveying shaft. There are several conveyor belts, and the conveyor belts are evenly distributed on the conveying shaft.

[0008] The pushing component consists of a pushing component base, a servo motor, a turntable, a transmission rod, a pushing rod, and a limiting bracket. The lower surface of the pushing component base is fixedly connected to the upper surface of the roller printing base. The pushing component base is located outside the first rotating shaft bracket. The limiting bracket is connected to the upper surface of the pushing component base and has a limiting hole. One end of the pushing rod passes through the limiting hole on the limiting bracket and is fixedly connected to the first rotating shaft bracket, and the pushing rod is slidably connected to the limiting bracket. The other end of the pushing rod is rotatably connected to one end of the transmission rod via a pin, and the other end of the transmission rod is rotatably connected to the edge of the upper surface of the turntable via a pin. The upper surface of the pushing component base has a groove, and a servo motor is fixedly connected in the groove of the pushing component base. The rotating shaft of the servo motor is fixedly connected to the lower surface of the turntable.

[0009] The sensing control component consists of a pressure sensor controller and a controller bracket. The lower surface of the pressure sensor controller is connected to the printing roller base through the controller bracket. The pressure sensor controller is located below the printing roller and its position corresponds to the center of the printing roller. The upper surface of the pressure sensor controller is on the same plane as the upper surface of the conveyor belt and is located between two adjacent conveyor belts. The sensing length of the pressure sensor controller is equal to the diameter of the printing roller, and the sensing area of ​​the pressure sensor controller corresponds to the printing roller.

[0010] The first rotating shaft support has a groove at its lower end, and a rotating wheel is provided in the groove of the first rotating shaft support. The rotating wheel is rotatably connected to the first rotating shaft support. The second rotating shaft support has a groove at its lower end, and a rotating wheel is provided in the groove of the second rotating shaft support. The rotating wheel is rotatably connected to the second rotating shaft support. The upper surface of the roller printing base has a groove slide, and the groove slide corresponds to the rotating wheel. The first rotating shaft support and the roller printing base are slidably connected through the rotating wheel. The second rotating shaft support and the roller printing base are slidably connected through the rotating wheel.

[0011] Two warning devices are provided. The bottom end of the warning device is connected to the upper surface of the conveying base, and there is one warning device on each of the two conveying bases. The position of the warning device corresponds to that of the printing roller.

[0012] The warning device consists of a sensor and a support bracket. The support bracket has an inverted "U" shape. Both ends of the support bracket are connected to the upper surface of the conveyor base. The roller printing shaft passes through the support bracket. The side of the support bracket closest to the printing roller is connected to the sensor, and the sensor is positioned above the roller printing shaft.

[0013] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0014] The surface printing device for plastic flooring described in this utility model intermittently changes the contact position between the rigid sheet and the printing roller during use, thereby avoiding unclear printing due to rubber fatigue during normal operation and preventing damage to the printing roller caused by the rigid sheet getting stuck underneath it during emergency shutdown. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the roller printing mechanism of this utility model;

[0017] Figure 3 This is a top view of the roller printing mechanism of this utility model.

[0018] Figure 4 This is a bottom view of the roller printing mechanism of this utility model.

[0019] Figure 5 This is an enlarged structural diagram of the printing roller of this utility model;

[0020] Figure 6 This is an enlarged structural schematic diagram of the pushing component of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection between the first rotating shaft support and the roller printing base of this utility model;

[0022] Figure 8 This is an enlarged structural schematic diagram of the early warning device of this utility model.

[0023] 1. Conveyor base; 2. Conveyor shaft; 3. Conveyor belt; 4. Roller printing base; 5. Roller printing shaft; 6. Printing roller; 7. Power assembly; 8. First shaft support; 9. Second shaft support; 10. Pushing component base; 11. Servo motor; 12. Turntable; 13. Transmission rod; 14. Push rod; 15. Limiting bracket; 16. Pressure sensor controller; 17. Controller bracket; 18. Rotary wheel; 19. Groove slide; 20. Sensor warning device; 21. Warning device bracket; 22. Wire. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0026] like Figure 1-4 As shown, a surface printing device for plastic flooring includes a conveying mechanism and a roller printing mechanism. The roller printing mechanism includes a roller printing base 4, a roller printing shaft 5, a printing roller 6, a power assembly 7, a first shaft support 8, and a second shaft support 9. The two ends of the roller printing shaft 5 are rotatably connected to the first shaft support 8 and the second shaft support 9, respectively. The printing roller 6 is sleeved on the roller printing shaft 5 and is located in the middle of the roller printing shaft 5. The bottom end of the first shaft support 8 is connected to the upper surface of the roller printing base 4, and the bottom end of the second shaft support 9 is connected to the upper surface of the roller printing base 4. The power assembly 7 is provided on the outer side of the second shaft support 9. The power assembly 7 is connected to the conveying mechanism and the roller printing mechanism. The roller printing shaft 5 is connected to the roller printing base 4 and the printing roller 6. The conveying mechanism is located between the roller printing base 4 and the printing roller 6, and the conveying mechanism is located below the printing roller 6. The upper surface of the roller printing base 4 is provided with an intermittent reciprocating pushing device outside the first rotating shaft support 8. The pushing end of the intermittent reciprocating pushing device is fixedly connected to the first rotating shaft support 8. The bottom end of the first rotating shaft support 8 is slidably connected to the upper surface of the roller printing base 4 through a sliding component. The bottom end of the second rotating shaft support 9 is slidably connected to the upper surface of the roller printing base 4 through a sliding component. The sensing end of the intermittent reciprocating pushing device is in contact with the lower surface of the plate being transported on the conveying mechanism. The upper surface of the conveying mechanism is provided with a warning device.

[0027] like Figure 2-5As shown, the intermittent reciprocating pushing device comprises a pushing component, a wire 22, and a sensing control component. The pushing component is connected to the upper surface of the roller printing base 4 and is located outside the first rotating shaft support 8. The pushing end of the pushing component is connected to the first rotating shaft support 8. The sensing control component is connected to the roller printing base 4 and is in contact with the lower surface of the plate being transported on the conveying mechanism. The sensing control component and the pushing component are electrically connected through the wire 22. The sensing control component is used to control the start and stop of the pushing component.

[0028] like Figure 1 As shown, the conveying mechanism includes a conveying base 1, a conveying shaft 2, and a conveyor belt 3. There are two conveying bases 1. The two ends of the conveying shaft 2 are rotatably connected to the conveying base 1 respectively. The inner wall of the conveyor belt 3 is slidably connected to the conveying shaft 2. There are several conveyor belts 3, and the conveyor belts 3 are evenly distributed on the conveying shaft 2.

[0029] like Figure 6 As shown, the pushing component consists of a pushing component base 10, a servo motor 11, a turntable 12, a transmission rod 13, a pushing rod 14, and a limiting bracket 15. The lower surface of the pushing component base 10 is fixedly connected to the upper surface of the roller printing base 4. The pushing component base 10 is located outside the first rotating shaft bracket 8. The limiting bracket 15 is connected to the upper surface of the pushing component base 10 and has a limiting hole. One end of the pushing rod 14 passes through the limiting hole on the limiting bracket 15 and is fixedly connected to the first rotating shaft bracket 8. The pushing rod 14 is slidably connected to the limiting bracket 15. The other end of the pushing rod 14 is rotatably connected to one end of the transmission rod 13 via a pin. The other end of the transmission rod 13 is rotatably connected to the edge of the upper surface of the turntable 12 via a pin. The upper surface of the pushing component base 10 has a groove. The servo motor 11 is fixedly connected in the groove of the pushing component base 10. The rotating shaft of the servo motor 11 is fixedly connected to the lower surface of the turntable 12.

[0030] like Figure 2 , Figure 3 and Figure 5As shown, the sensing control component consists of a pressure sensing controller 16 and a controller bracket 17. The lower surface of the pressure sensing controller 16 is connected to the printing roller base 4 through the controller bracket 17. The pressure sensing controller 16 is located below the printing roller 6, and its position corresponds to the center of the printing roller 6. The upper surface of the pressure sensing controller 16 is on the same plane as the upper surface of the conveyor belt 3, and the pressure sensing controller 16 is located between two adjacent conveyor belts 3. The sensing length of the pressure sensing controller 16 is equal to the diameter of the printing roller 6, and the sensing area of ​​the pressure sensing controller 16 corresponds to the printing roller 6.

[0031] like Figure 7 As shown, the lower end of the first rotating shaft bracket 8 is provided with a groove, and a rotating wheel 18 is provided in the groove of the first rotating shaft bracket 8. The rotating wheel 18 is rotatably connected to the first rotating shaft bracket 8. The lower end of the second rotating shaft bracket 9 is provided with a groove, and a rotating wheel 18 is provided in the groove of the second rotating shaft bracket 9. The rotating wheel 18 is rotatably connected to the second rotating shaft bracket 9. The upper surface of the roller printing base 4 is provided with a groove slide 19, and the groove slide 19 corresponds to the rotating wheel 18. The first rotating shaft bracket 8 and the roller printing base 4 are slidably connected through the rotating wheel 18, and the second rotating shaft bracket 9 and the roller printing base 4 are slidably connected through the rotating wheel 18.

[0032] like Figure 1 and Figure 8 As shown, there are two warning devices. The bottom end of the warning device is connected to the upper surface of the conveying base 1, and there is one warning device on each of the two conveying bases 1. The position of the warning device corresponds to that of the printing roller 6.

[0033] like Figure 8 As shown, the early warning device consists of a sensor 20 and an early warning bracket 21. The early warning bracket 21 has an inverted "U" shape. Both ends of the early warning bracket 21 are connected to the upper surface of the conveying base 1. The roller printing shaft 5 passes through the early warning bracket 21. The side of the early warning bracket 21 near the printing roller 6 is connected to the sensor 20, and the sensor 20 is located above the roller printing shaft 5.

[0034] The work process is as follows:

[0035] S1. When using the device, start the conveyor mechanism and the roller printing mechanism. Place the rigid material to be printed on the conveyor belt 3 of the conveyor mechanism. The conveyor shaft 2 on the conveyor base 1 of the conveyor mechanism drives the conveyor belt 3 to convey the rigid material into the roller printing mechanism for printing. The pressure sensing controller 16 located between the two conveyor belts 3 has its upper surface on the same horizontal plane. At the same time, the pressure sensing controller 16 is located at the center position below the printing roller 6, and the sensing area is equal to the diameter of the printing roller 6. When the conveyor belt 3 conveys the rigid material and contacts the sensing area of ​​the pressure sensing controller 16, the servo motor 11 stops rotating, the printing roller 6 stops moving, and the printing roller 6 prints the pattern on the rigid material through rotation and pressure. When the rigid material leaves the pressure sensing controller 16... When the second hard plate comes into contact with the sensing area of ​​the pressure sensor 16, the servo motor 11 starts to rotate, driving the turntable 12 to rotate. The turntable 12 drives the push rod 14 through the transmission rod 13. The push rod 14 performs reciprocating linear motion under the limit of the limit bracket 15. The push rod 14 drives the printing roller 6 to perform reciprocating linear motion through the first rotating shaft bracket 8. When the second hard plate comes into contact with the sensing area of ​​the pressure sensor 16, the servo motor 11 stops working. The printing roller 6 prints the pattern on the second hard plate by rotating and pressing. In this way, the contact position of the hard plate changes every time the printing roller 6 rotates and presses, which reduces the fatigue of the rubber on the printing roller 6 and avoids the situation of unclear printing due to rubber fatigue during the normal operation of the equipment.

[0036] S2. During prolonged operation of the roller printing mechanism, the bearings on the rotating shaft support will wear out. The roller printing shaft 5 on the worn side will move downwards, causing one side of the printing roller 6 to move downwards. This results in excessive pressure on the hard plate on this side of the printing roller 6, leading to unclear printing. At this time, the machine needs to be stopped for maintenance. When the printing roller 6 is in normal working condition and is making a translational movement, it will not touch the sensor warning device 20. When it is in a downward translational state, the top of the printing roller 6 on the downward translational side, corresponding to the position of the sensor warning device 20, will move outwards. This translational movement of the printing roller 6 will trigger the sensor warning device 20, stopping the conveying of the hard plate. Because no hard plate enters the printing area when the printing roller 6 is making a translational movement, it avoids the hard plate getting stuck under the printing roller 6 and causing damage to the printing roller 6 during an emergency stop.

[0037] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A surface printing device for plastic flooring, comprising a conveying mechanism and a roller printing mechanism, wherein the roller printing mechanism comprises a roller printing base (4), a roller printing shaft (5), a printing roller (6), a power assembly (7), a first shaft support (8), and a second shaft support (9), wherein the two ends of the roller printing shaft (5) are rotatably connected to the first shaft support (8) and the second shaft support (9) respectively, the printing roller (6) is sleeved on the roller printing shaft (5) and the printing roller (6) is located in the middle of the roller printing shaft (5), the bottom end of the first shaft support (8) is connected to the upper surface of the roller printing base (4), the bottom end of the second shaft support (9) is connected to the upper surface of the roller printing base (4), a power assembly (7) is provided on the outside of the second shaft support (9) and the power assembly (7) is connected to the roller printing shaft (5), the conveying mechanism is located between the roller printing base (4) and the printing roller (6) and the conveying mechanism is located below the printing roller (6), characterized in that: The upper surface of the roller printing base (4) is provided with an intermittent reciprocating pushing device located outside the first rotating shaft bracket (8). The pushing end of the intermittent reciprocating pushing device is fixedly connected to the first rotating shaft bracket (8). The bottom end of the first rotating shaft bracket (8) is slidably connected to the upper surface of the roller printing base (4) through a sliding component. The bottom end of the second rotating shaft bracket (9) is slidably connected to the upper surface of the roller printing base (4) through a sliding component. The sensing end of the intermittent reciprocating pushing device is in contact with the lower surface of the plate being transported on the conveying mechanism. The upper surface of the conveying mechanism is provided with an early warning device.

2. The surface printing device for plastic flooring according to claim 1, characterized in that: The intermittent reciprocating push device comprises a push component, a wire (22), and a sensing control component. The push component is connected to the upper surface of the roller printing base (4) and is located outside the first rotating shaft support (8). The push end of the push component is connected to the first rotating shaft support (8). The sensing control component is connected to the roller printing base (4) and is in contact with the lower surface of the plate being transported on the conveying mechanism. The sensing control component is electrically connected to the push component through the wire (22) and is used to control the start and stop of the push component.

3. The surface printing device for plastic flooring according to claim 2, characterized in that: The conveying mechanism includes a conveying base (1), a conveying shaft (2), and a conveyor belt (3). There are two conveying bases (1). The two ends of the conveying shaft (2) are rotatably connected to the conveying bases (1). The inner wall of the conveyor belt (3) is slidably connected to the conveying shaft (2). There are several conveyor belts (3), and the conveyor belts (3) are evenly distributed on the conveying shaft (2).

4. The surface printing device for plastic flooring according to claim 3, characterized in that: The pushing component consists of a pushing component base (10), a servo motor (11), a turntable (12), a transmission rod (13), a pushing rod (14), and a limiting bracket (15). The lower surface of the pushing component base (10) is fixedly connected to the upper surface of the roller printing base (4). The pushing component base (10) is located outside the first rotating shaft bracket (8). The limiting bracket (15) is connected to the upper surface of the pushing component base (10). The limiting bracket (15) is provided with a limiting hole. One end of the pushing rod (14) passes through the limiting hole on the limiting bracket (15). The positioning hole is fixedly connected to the first rotating shaft bracket (8), and the push rod (14) is slidably connected to the limiting bracket (15). The other end of the push rod (14) is rotatably connected to one end of the transmission rod (13) through a pin. The other end of the transmission rod (13) is rotatably connected to the upper surface edge of the turntable (12) through a pin. The upper surface of the push component base (10) is provided with a groove. A servo motor (11) is fixedly connected in the groove of the push component base (10). The rotating shaft of the servo motor (11) is fixedly connected to the lower surface of the turntable (12).

5. The surface printing device for plastic flooring according to claim 4, characterized in that: The sensing control component consists of a pressure sensing controller (16) and a controller bracket (17). The lower surface of the pressure sensing controller (16) is connected to the roller printing base (4) through the controller bracket (17). The pressure sensing controller (16) is located below the printing roller (6), and the position of the pressure sensing controller (16) corresponds to the center of the printing roller (6). The upper surface of the pressure sensing controller (16) is on the same plane as the upper surface of the conveyor belt (3), and the pressure sensing controller (16) is located between two adjacent conveyor belts (3). The sensing length of the pressure sensing controller (16) is equal to the diameter of the printing roller (6), and the sensing area of ​​the pressure sensing controller (16) corresponds to the printing roller (6).

6. The surface printing device for plastic flooring according to claim 1, characterized in that: The first rotating shaft bracket (8) has a groove at its lower end, and a rotating wheel (18) is provided in the groove of the first rotating shaft bracket (8). The rotating wheel (18) is rotatably connected to the first rotating shaft bracket (8). The second rotating shaft bracket (9) has a groove at its lower end, and a rotating wheel (18) is provided in the groove of the second rotating shaft bracket (9). The rotating wheel (18) is rotatably connected to the second rotating shaft bracket (9). The upper surface of the roller printing base (4) has a groove slide (19), and the groove slide (19) corresponds to the rotating wheel (18). The first rotating shaft bracket (8) and the roller printing base (4) are slidably connected through the rotating wheel (18). The second rotating shaft bracket (9) and the roller printing base (4) are slidably connected through the rotating wheel (18).

7. The surface printing device for plastic flooring according to claim 3, characterized in that: Two warning devices are provided. The bottom end of the warning device is connected to the upper surface of the conveying base (1), and each of the two conveying bases (1) has one warning device. The warning device is positioned corresponding to the printing roller (6).

8. The surface printing device for plastic flooring according to claim 7, characterized in that: The warning device consists of a sensor warning device (20) and a warning device bracket (21). The warning device bracket (21) has an inverted "U" shape. Both ends of the warning device bracket (21) are connected to the upper surface of the conveying base (1). The roller printing shaft (5) passes through the warning device bracket (21). The side of the warning device bracket (21) near the printing roller (6) is connected to the sensor warning device (20), and the sensor warning device (20) is located above the roller printing shaft (5).

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