Feeding device of printing machine

Abstract

The utility model is suitable for the technical field of printing machines, and provides a printing machine feeding device which comprises a conveying mechanism, the conveying mechanism comprises a conveying frame, a supporting frame is fixedly installed on the conveying frame, a plurality of hydraulic push rods are installed on the supporting frame, and a lifting frame is fixedly installed at the telescopic ends of the hydraulic push rods. A brush roller with a bristle layer is rotatably mounted on the lifting frame, meanwhile, a spray head is mounted on the lifting frame through a fixing frame, spray water in the water storage tank is conveyed to the spray head through a water pump and evenly sprayed on the bristle layer, the spray water is evenly smeared on the surface of a paperboard through rotation of the brush roller, and the situation that the paperboard is soaked by too large spray water flow is prevented; static electricity on the paperboards is reduced, multiple paperboards are prevented from being adsorbed and stacked when the paperboards are conveyed, and the conveying efficiency of the paperboards is improved; two installation frames are fixedly installed on the conveying frame, a plurality of pneumatic push rods are installed on the installation frames, and limiting frames with guide wheels are fixedly installed at the telescopic ends of the pneumatic push rods and used for limiting the paperboard conveying position.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing machines, and in particular relates to a feeding device for a printing machine. Background Art

[0002] In the current field of printing press technology, a printing press is a machine that prints text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding (including folding). A special feeding device is required to transport the paper or cardboard required by the printing press to the interior of the printing press for subsequent printing.

[0003] The utility model patent with the publication number CN211338062U discloses a feeding device for a packaging and decoration printing machine, which relates to the technical field of printing machines, and includes a workbench, an electric wheel is fixedly installed inside the workbench, a conveyor belt is attached to the outside of the electric wheel, a fixed plate is fixedly installed on the inner wall of the workbench, a first limit plate, a fixed box and a second shock-absorbing seat are fixedly installed on the top of the workbench, and the second shock-absorbing seat is provided with two, a hair dryer is fixedly installed on the top of the second shock-absorbing seat, a vent pipe is fixedly installed on the side of the hair dryer, and a gas collecting nozzle is threadedly connected to the end of the vent pipe away from the hair dryer, and the vent pipe runs through the inner wall of the fixed box. The feeding device of the packaging and decoration printing machine achieves the purpose of being able to adjust the device on site by setting an internal thread column, an external thread column, a bearing and a second limit plate, and enhances the effect of cardboard printing by setting a water storage tank, a water pump and a water mist nozzle.

[0004] However, the above patent has the following shortcomings:

[0005] 1. In the above patent, the cardboard is wetted by a water mist nozzle to reduce the static electricity of the cardboard and prevent mutual adsorption and adhesion. However, the cardboard is sprayed only by a water mist nozzle, and the spraying is uneven, which easily soaks the cardboard, which is not conducive to subsequent surface printing.

[0006] 2. The above patent and commonly used feeding devices adjust the conveying position of the cardboard by abutting the outer walls of both sides of the cardboard with the limiting plates. However, the limiting plates are easily rubbed against the side walls of the cardboard, damaging its edges and corners, thereby reducing the printing quality of the cardboard. Utility Model Content

[0007] The utility model provides a feeding device for a printing press, aiming to solve the problem mentioned in the above background.

[0008] The utility model is implemented as follows: a feeding device of a printing press comprises a conveying mechanism, wherein the conveying mechanism comprises a conveying frame, and a supporting frame is fixedly mounted on the conveying frame;

[0009] A paving mechanism, comprising a hydraulic push rod, a plurality of the hydraulic push rods are fixedly mounted on the inner wall of the support frame, and a lifting frame is fixedly mounted on the telescopic ends of the plurality of the hydraulic push rods;

[0010] A brush roller is rotatably mounted on the lifting frame, and a bristle layer is arranged on the outer wall of the brush roller;

[0011] A fixing frame is fixedly mounted on the lifting frame, a spray head is mounted on the fixing frame, and the spray head faces the brush roller;

[0012] The limiting mechanism is used to limit the moving position of the raw material, and the limiting mechanism is fixedly installed on the conveying mechanism.

[0013] Preferably, a water storage tank is fixedly mounted on the top wall of the support frame, and a water pump is fixedly mounted on the support frame;

[0014] One end of the water pump is connected to the water storage tank through a pipeline, and the other end is connected to the nozzle through a hose. In this scheme, the water for spraying is stored in the water storage tank, pumped out by the water pump, transported to the nozzle, and sprayed out by the nozzle.

[0015] Preferably, a plurality of pressure rollers are rotatably mounted on the lifting frame;

[0016] A second reduction motor is fixedly mounted on the lifting frame, and the second reduction motor is connected to the plurality of pressing rollers through transmission. In this solution, the second reduction motor can be connected to the plurality of pressing rollers through a plurality of belts or chains to drive the plurality of pressing rollers to rotate, thereby flattening the cardboard, reducing wrinkles, and preventing the cardboard and paper from warping.

[0017] Preferably, a plurality of conveying rollers are rotatably mounted on the conveying frame, and the plurality of conveying rollers are evenly distributed on the conveying frame;

[0018] A reduction motor 1 is fixedly installed on the conveying frame, and the reduction motor 1 is transmission-connected to the multiple conveying rollers; in this scheme, a right-angle reducer is installed at the output end of the reduction motor 1, and the right-angle reducer and the chrome-plated transmission connection are used to transmission-connect the multiple conveying rollers, and the multiple conveying rollers are used to convey raw materials such as cardboard or paper.

[0019] Preferably, the limiting mechanism comprises a mounting frame, two of the mounting frames are fixedly mounted on the conveying frame, and the two mounting frames are arranged on both sides of the plurality of conveying rollers.

[0020] Preferably, a plurality of pneumatic push rods are fixedly mounted on the mounting frame, and the telescopic ends of the plurality of pneumatic push rods penetrate through the mounting frame and are fixedly mounted on a limiting frame;

[0021] The cross section of the limit frame is "C"-shaped, and a plurality of guide wheels are rotatably mounted on the limit frame, and the plurality of guide wheels are evenly distributed on the limit frame; in this solution, two limit frames are driven to move by a plurality of pneumatic push rods, and the distance between the two limit frames is adjusted to limit cardboards of different models, and the scope of application is wider.

[0022] Compared with the prior art, the beneficial effects of the utility model are: a feeding device for a printing press of the utility model,

[0023] 1. A support frame is fixedly installed on the conveying frame, and multiple hydraulic push rods are installed on the support frame. A lifting frame is fixedly installed on the telescopic ends of the multiple hydraulic push rods. A brush roller with a brush layer is rotatably installed on the lifting frame. At the same time, a nozzle is installed on the lifting frame through a fixed frame. The spray water in the water storage tank is transported to the nozzle by a water pump, and evenly sprayed on the brush layer. The rotation of the brush roller is used to evenly apply the spray water on the surface of the cardboard to prevent the spray water flow from being too large to soak the cardboard, reduce static electricity on the cardboard, and prevent multiple cardboards from being adsorbed and stacked when conveying the cardboard, thereby improving the conveying efficiency of the cardboard;

[0024] 2. Multiple motor-driven pressing rollers are installed on the lifting frame to contact the surface of the cardboard, preventing the cardboard from warping during transportation and improving the transportation efficiency of the cardboard;

[0025] 3. Two mounting frames are fixedly installed on the conveying frame, and multiple pneumatic push rods are installed on the mounting frames. A limit frame with a guide wheel is fixedly installed on the telescopic end of the pneumatic push rod to limit the conveying position of the cardboard. Multiple guide wheels contact the side walls of the cardboard to change the sliding friction into rolling friction, thereby preventing damage to the outer walls of both sides of the cardboard and improving the conveying quality of the cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The schematic diagram of the overall structure of this utility model

[0027] Figure 2 Practical Figure 1 Enlarged view of point A in the middle

[0028] Figure 3 The schematic diagram of the structure of the practical limit mechanism is as follows:

[0029] Figure 4 The schematic diagram of the structure of this practical limit frame

[0030] In the figure:

[0031] 1. Conveying mechanism; 11. Conveying frame; 12. Support frame; 13. Conveying roller; 14. Speed ​​reducer motor 1;

[0032] 2. Paving mechanism; 21. Hydraulic push rod; 22. Lifting frame; 221. Fixed frame; 23. Pressing roller; 231. Reducer motor 2; 24. Brush roller; 241. Brushing layer; 25. Water storage tank; 251. Water pump; 252. Sprinkler;

[0033] 3. Limiting mechanism; 31. Mounting frame; 32. Pneumatic push rod; 33. Limiting frame; 34. Guide wheel. DETAILED DESCRIPTION

[0034] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0035] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0036] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1-4The utility model provides a technical solution: a feeding device of a printing press, including a conveying mechanism 1, the conveying mechanism 1 includes a conveying frame 11, a support frame 12 is fixedly installed on the conveying frame 11, a plurality of conveying rollers 13 are rotatably installed on the conveying frame 11, the plurality of conveying rollers 13 are evenly distributed on the conveying frame 11, a reduction motor 14 is fixedly installed on the conveying frame 11, and the reduction motor 14 is transmission-connected to the plurality of conveying rollers 13.

[0040] Among them, a right-angle reducer is installed at the output end of the reduction motor 14, and the right-angle reducer is used to drive the transmission chain to rotate. At the same time, ratchets are installed on multiple conveying rollers 13, and the multiple conveying rollers 13 are connected to each other through transmission chains, and then the reduction motor 14 is used to drive the multiple conveying rollers 13 to rotate to convey raw materials such as cardboard or paper.

[0041] The paving mechanism 2 includes a hydraulic push rod 21, and a plurality of hydraulic push rods 21 are fixedly mounted on the inner wall of the support frame 12. A lifting frame 22 is fixedly mounted on the telescopic ends of the plurality of hydraulic push rods 21. A brush roller 24 is rotatably mounted on the lifting frame 22. A bristle layer 241 is provided on the outer wall of the brush roller 24. A fixing frame 221 is fixedly mounted on the lifting frame 22. A nozzle 252 is mounted on the fixing frame 221. The nozzle 252 is directly facing the brush roller 24. A water tank 25 is fixedly mounted on the top wall of the support frame 12, and a water pump 251 is fixedly mounted on the support frame 12. One end of the water pump 251 is connected to the water tank 25 through a pipeline, and the other end is connected to the nozzle 252 through a hose.

[0042] Among them, multiple hydraulic push rods 21 drive the lifting frame 22 to move longitudinally, adjust the height of the brush roller 24, so that the brush layer 241 on the brush roller 24 contacts the surface of the cardboard. At the same time, the brush layer 241 is composed of bristles, which is convenient for applying spray water. The water tank 25 stores the spray water, and the spray water is extracted by the water pump 251, so that the spray water is sprayed from the nozzle 252 to the brush layer 241, and the surface of the cardboard is coated, thereby reducing static electricity on the cardboard and preventing excessive water flow from soaking the surface of the cardboard.

[0043] A plurality of pressure rollers 23 are rotatably mounted on the lifting frame 22 , and a second reduction motor 231 is fixedly mounted on the lifting frame 22 . The second reduction motor 231 is transmission-connected to the plurality of pressure rollers 23 .

[0044] Furthermore, the plurality of pressing rollers 23 move longitudinally along with the lifting frame 22, and the plurality of pressing rollers 23 are used to press the surface of the paperboard to prevent the paperboard from warping.

[0045] The limiting mechanism 3 is used to limit the moving position of the raw material. The limiting mechanism 3 is fixedly installed on the conveying mechanism 1. The limiting mechanism 3 includes a mounting frame 31. Two mounting frames 31 are fixedly installed on the conveying frame 11, and the two mounting frames 31 are arranged on both sides of the plurality of conveying rollers 13. A plurality of pneumatic push rods 32 are fixedly installed on the mounting frame 31. The telescopic ends of the plurality of pneumatic push rods 32 pass through the mounting frame 31 and are fixedly installed with a limiting frame 33. The cross-section of the limiting frame 33 is "C"-shaped. A plurality of guide wheels 34 are rotatably installed on the limiting frame 33, and the plurality of guide wheels 34 are evenly distributed on the limiting frame 33.

[0046] Specifically, multiple pneumatic push rods 32 drive the limit frame 33 to move horizontally, thereby adjusting the distance between the two limit frames 33, which is suitable for use with different types of cardboards. The guide wheel 34 contacts the side wall of the cardboard to change the sliding friction into rolling friction to prevent damage to the side wall of the cardboard.

[0047] The working principle and use process of this utility model: please refer to Figure 1-4 , a cardboard is placed on the surface of a conveying roller 13, a reduction motor 14 is used to drive a plurality of conveying rollers 13 to rotate, and raw materials such as cardboard or paper are conveyed. A plurality of hydraulic push rods 21 drive a lifting frame 22 to move longitudinally, and the height of a brush roller 24 is adjusted so that a bristle layer 241 on the brush roller 24 contacts the surface of the cardboard. A water storage tank 25 stores water for spraying, and a water pump 251 extracts water for spraying, so that the spraying water is sprayed from a nozzle 252 onto the bristle layer 241, and the surface of the cardboard is coated to reduce static electricity on the cardboard. A plurality of pressing rollers 23 follow the lifting frame 22 to move longitudinally, and then a plurality of pressing rollers 23 are used to squeeze the surface of the cardboard to prevent the cardboard from warping. A plurality of pneumatic push rods 32 drive a limiting frame 33 to move horizontally, and then the distance between the two limiting frames 33 is adjusted, so that it is suitable for use with different types of cardboards, and a guide wheel 34 contacts the side wall of the cardboard to change the sliding friction into rolling friction to prevent damage to the side wall of the cardboard.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device for a printing press, characterized in that: It comprises a conveying mechanism (1), wherein the conveying mechanism (1) comprises a conveying frame (11), and a supporting frame (12) is fixedly mounted on the conveying frame (11); A paving mechanism (2), comprising a hydraulic push rod (21), wherein a plurality of the hydraulic push rods (21) are fixedly mounted on the inner wall of the support frame (12), and a lifting frame (22) is fixedly mounted on the telescopic ends of the plurality of hydraulic push rods (21); A brush roller (24) is rotatably mounted on the lifting frame (22), and a bristle layer (241) is provided on the outer wall of the brush roller (24); A fixing frame (221) is fixedly mounted on the lifting frame (22), a spray head (252) is mounted on the fixing frame (221), and the spray head (252) faces the brush roller (24); A limiting mechanism (3) is used to limit the moving position of the raw material, and the limiting mechanism (3) is fixedly mounted on the conveying mechanism (1).

2. A feeding device for a printing press as claimed in claim 1, characterized in that: A water storage tank (25) is fixedly mounted on the top wall of the support frame (12), and a water pump (251) is fixedly mounted on the support frame (12); One end of the water pump (251) is connected to the water storage tank (25) via a pipeline, and the other end is connected to the spray head (252) via a hose.

3. A feeding device for a printing press as claimed in claim 1, characterized in that: A plurality of pressure rollers (23) are rotatably mounted on the lifting frame (22); A second reduction motor (231) is fixedly mounted on the lifting frame (22), and the second reduction motor (231) is transmission-connected to the plurality of pressure rollers (23).

4. A feeding device for a printing press as claimed in claim 1, characterized in that: A plurality of conveying rollers (13) are rotatably mounted on the conveying frame (11), and the plurality of conveying rollers (13) are evenly distributed on the conveying frame (11); A reduction motor 1 (14) is fixedly mounted on the conveying frame (11), and the reduction motor 1 (14) is transmission-connected to the plurality of conveying rollers (13).

5. A feeding device for a printing press as claimed in claim 4, characterized in that: The limiting mechanism (3) comprises a mounting frame (31), wherein two mounting frames (31) are fixedly mounted on the conveying frame (11), and the two mounting frames (31) are arranged on both sides of the plurality of conveying rollers (13).

6. A feeding device for a printing press as claimed in claim 5, characterized in that: A plurality of pneumatic push rods (32) are fixedly mounted on the mounting frame (31), and the telescopic ends of the plurality of pneumatic push rods (32) penetrate through the mounting frame (31) and are fixedly mounted on a limiting frame (33); The cross section of the limiting frame (33) is "C"-shaped, and a plurality of guide wheels (34) are rotatably mounted on the limiting frame (33), and the plurality of guide wheels (34) are evenly distributed on the limiting frame (33).

Images