Printing paper positioning device of printing machine

Abstract

The utility model provides a calico paper positioning device of a calico printing machine. Comprising a printing machine body, an unwinding assembly is arranged at the top of the printing machine body, a positioning assembly is arranged on the inner side of the unwinding assembly, and a limiting assembly is arranged on the inner side of the positioning assembly. According to the calico paper positioning device of the calico printing machine, all parts of the device are arranged in a matched mode, the calico paper tube is connected to the surfaces of the two unwinding rollers in a sleeved mode, the threaded sleeve is driven to rotate, the adjusting cylinder is driven to move on the surfaces of the unwinding rollers, and the adjusting cylinder drives the clamping cylinders to be connected to the two ends of the calico paper tube in an inserted mode. The printing paper tube is clamped and fixed, operation is easy and convenient, no tool needs to be used, the effect that the printing paper tube is convenient and fast to replace is achieved, in cooperation with the effect of the limiting assembly, the limiting rod is inserted into the inner side of the limiting hole through the counter-acting force of the elastic piece, and therefore the positioning effect of the clamping tube on the printing paper tube is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machine equipment, in particular to a printing paper positioning device of a printing machine. Background Art

[0002] A printing machine is a machine specially used for printing on textiles and other materials. It mainly includes various types such as flatbed, rotary, boring and inkjet. It is widely used in industries such as textiles, leather making, porcelain making and home accessories. Printing paper is a special kind of paper with special thermal transfer ink to print various patterns on it, and then the pattern is transferred to the product through temperature and pressure.

[0003] In the related art, when unwinding printed paper on existing printing machines, a pair of coaxially arranged unwinding rollers are often provided on either side of the frame. A positioning cylinder is sleeved on the unwinding rollers, and the diameter of the positioning cylinder gradually decreases from one side of the frame to the middle of the frame. The unwinding rollers are used to insert into the printed paper roll and position the printed paper roll. A bolt is provided on the positioning cylinder and then threadedly connected to the unwinding roller after passing through the positioning cylinder. When the printed paper roll needs to be replaced, the bolt is first rotated and removed, and then the positioning cylinder is slid away from the printed paper roll. The printed paper roll is then removed and replaced with a new printed paper roll. The positioning cylinder is then inserted into the printed paper roll and the bolt is passed through the positioning cylinder and connected to the unwinding roller. During the replacement process, a tool is required to rotate and remove the bolt. During installation, the bolt is then tightened onto the unwinding roller with a tool to prevent it from loosening, making replacement of the printed paper roll inconvenient.

[0004] Therefore, it is necessary to provide a printing paper positioning device for a printing machine to solve the above technical problems. Utility Model Content

[0005] The utility model provides a printing paper positioning device for a printing machine, which solves the problem that a tool needs to be used to rotate and remove a bolt during replacement, and then the tool is used to tighten the bolt on the unwinding roller during installation to prevent the bolt from loosening, which makes it inconvenient to replace the printing paper roll.

[0006] In order to solve the above technical problems, the utility model provides a printing paper positioning device for a printing machine, comprising: a printing machine body, a reeling assembly is provided on the top of the printing machine body, a positioning assembly is provided inside the reeling assembly, and a limiting assembly is provided inside the positioning assembly;

[0007] The unwinding assembly includes a mounting frame arranged on the top of the printing machine body;

[0008] The cam is fixedly mounted on one side of the two rotating disks, and an adjusting cylinder is sleeved on the surface of the two rotating disks and is slidably connected to the two rotating disks. A threaded sleeve is rotatably provided on the outer edge of the two adjusting cylinders, and a plurality of limiting holes are provided on the front and rear sides of the two unwinding rollers near the center. Two clamping grooves are provided on the adjacent sides of the two unwinding rollers, and clamping blocks are clamped in the inner sides of the clamping grooves. A clamping cylinder is fixedly mounted on the surfaces of the two clamping blocks on the same side.

[0009] The limiting assembly includes two movable blocks arranged on the inner side of the adjusting cylinder, and a movable hole is opened on the inner side of the movable block for the movable block to slide back and forth. A limiting rod adapted to the limiting hole is provided through the center of the inner side of the movable block and is fixedly connected to the limiting hole. An elastic member for driving the movable block to slide is provided on the inner side of the movable hole and on the outer edge of the limiting rod.

[0010] Preferably, two rotating gears are rotatably provided on the left side of the mounting frame, a fixing frame is fixedly installed on the left side of the mounting frame, and a driving motor for driving the rotating gears on the top is fixedly installed on the top of the fixing frame.

[0011] Preferably, the two rotating gears are meshed with each other, the right end of the rotating gear at the bottom is fixedly connected to the surface of the adjacent rotating disk, and a communication port for the rotating gear to pass through is opened on the inner side of the fixing frame.

[0012] Preferably, the top and bottom of the unwinding roller are provided with moving grooves, and the inner sides of the adjusting cylinder and the clamping cylinder are fixedly mounted with moving blocks that are adapted to the moving grooves.

[0013] Preferably, the surface of the unwinding roller is provided with an external thread groove, the inner side of the threaded sleeve is provided with an internal thread groove adapted to the external thread groove, and handles are fixedly installed on both the front and rear sides of the adjusting cylinder.

[0014] Preferably, a connecting hole for the limit rod to pass through is provided on the inner side of the adjusting cylinder, and a positioning hole adapted to the limit rod is provided on the inner side of each of the clamping blocks.

[0015] Compared with the related art, the printing paper positioning device of the printing machine provided by the present invention has the following advantages:

[0016] Beneficial effects:

[0017] The utility model provides a printing paper positioning device for a printing machine. By cooperating with each other in various components of the device, a printing paper tube is sleeved on the surfaces of two unwinding rollers, a limiting rod is pulled outward to release the limiting effect on the adjusting tube, and a handle is manually rotated to drive the threaded sleeve to rotate, and the adjusting tube is driven to move on the surface of the unwinding roller through a threaded connection relationship with an external thread groove, and the adjusting tube drives a clamping tube to be inserted into the two ends of the printing paper tube to clamp and fix the printing paper tube. The operation is simple and convenient, and no tools are needed, so that the printing paper tube is replaced conveniently and quickly. In addition, in conjunction with the function of the limiting component, the limiting rod is inserted into the inner side of the limiting hole through the reaction force of the elastic member, thereby increasing the positioning effect of the clamping tube on the printing paper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of a printing paper positioning device for a printing machine provided by the utility model;

[0019] Figure 2 for Figure 1 A schematic structural diagram of a side sectional view of the rotating disk shown;

[0020] Figure 3 for Figure 1 A schematic structural diagram of a side view of the chuck shown;

[0021] Figure 4 for Figure 2 The structural diagram of the side sectional view of the regulating cylinder is shown.

[0022] Numbers in the figure: 10, printing machine body; 20, unwinding assembly; 21, mounting frame; 22, rotating gear; 23, fixing frame; 24, driving motor; 30, positioning assembly; 31, rotating disk; 32, unwinding roller; 33, adjusting cylinder; 34, threaded sleeve; 35, limiting hole; 36, snap-in groove; 37, snap-in block; 38, clamping cylinder; 39, moving groove; 40, limiting assembly; 41, movable block; 42, movable hole; 43, limiting rod; 44, elastic part. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a printing paper positioning device for a printing machine provided by the utility model; Figure 2 for Figure 1 A schematic structural diagram of a side sectional view of the rotating disk shown; Figure 3 for Figure 1A schematic structural diagram of a side view of the chuck shown; Figure 4 for Figure 2 A schematic diagram of the structure of the side cross-sectional view of the adjustment cylinder shown. A printing paper positioning device for a printing machine comprises: a printing machine body 10, a reel assembly 20 is arranged on the top of the printing machine body 10, a positioning assembly 30 is arranged inside the reel assembly 20, and a limit assembly 40 is arranged inside the positioning assembly 30;

[0025] The unwinding assembly 20 includes a mounting frame 21 disposed on the top of the printing machine body 10;

[0026] The positioning assembly 30 includes two rotating disks 31 rotatably arranged on the inner side of the mounting frame 21, and a reel 32 is fixedly mounted on the adjacent side of the two rotating disks 31. An adjusting cylinder 33 is sleeved on the surface of the reel 32 and is slidably connected thereto. A threaded sleeve 34 is rotatably provided on the outer edge of the reel 32 and on one side of the two adjusting cylinders 33. A plurality of limiting holes 35 are provided near the center on the front and rear sides of the reel 32. Two clamping grooves 36 are provided on the adjacent side of the two reel 32. A clamping block 37 is provided on the inner side of the clamping grooves 36. A clamping cylinder 38 is fixedly mounted on the surface of the two clamping blocks 37 on the same side.

[0027] The printed paper tube is sleeved on the surfaces of the two unwinding rollers 32, and the limiting rod 43 is pulled outward to release the limiting effect on the adjusting tube 33. The handle is manually turned to drive the threaded sleeve 34 to rotate, and through the threaded connection relationship with the external thread groove, the adjusting tube 33 is driven to move on the surface of the unwinding roller 32. The adjusting tube 33 drives the clamping tube 38 to be inserted into the two ends of the printed paper tube to clamp and fix the printed paper tube, and the reaction force of the elastic member 44 is used to make the limiting rod 43 inserted into the inner side of the limiting hole 35, thereby increasing the positioning effect of the clamping tube 38 on the printed paper tube. The operation is simple and convenient, and no tools are required, thereby achieving the effect of convenient and quick replacement of the printed paper tube.

[0028] The limiting assembly 40 includes two movable blocks 41 disposed inside the adjustment cylinder 33. A movable hole 42 is defined inside the movable block 41 for allowing the movable block 41 to slide forward and backward. A limiting rod 43 is provided at the center of the inner side of the movable block 41 and is adapted to fit the limiting hole 35 and is fixedly connected thereto. An elastic member 44 is provided inside the movable hole 42 and on the outer edge of the limiting rod 43 to drive the movable block 41 to slide.

[0029] When the device is in use, the limiting rods 43 on both sides are pulled outward, driving the movable block 41 to slide outward inside the movable hole 42 and squeezing the elastic member 44 to shrink. The movable block provided on the inner side of the clamping cylinder 38 moves inside the movable groove 39, and the clamping block 37 is clamped inside the clamping groove 36. The reaction force of the elastic member 44 causes the limiting rod 43 to be inserted into the inner side of the positioning hole in the clamping block 37, so that the clamping cylinder 38 and the adjusting cylinder 33 are fitted together.

[0030] Two rotating gears 22 are rotatably provided on the left side of the mounting frame 21 . A fixing frame 23 is fixedly installed on the left side of the mounting frame 21 . A driving motor 24 is fixedly installed on the top of the fixing frame 23 for driving the top rotating gear 22 to rotate.

[0031] The two rotating gears 22 are meshed with each other. The right end of the bottom rotating gear 22 is fixedly connected to the surface of the adjacent rotating disk 31. A communication port is opened on the inner side of the fixing frame 23 for the rotating gear 22 to pass through.

[0032] The driving motor 24 is arranged to mesh with the two rotating gears 22, and drives the rotating disk 31 to rotate through the rotating disk 31. The rotating disk 31 drives the printing paper roll to rotate through the unwinding roller 32 to complete the unwinding of the printing paper on the printing paper roll.

[0033] A moving groove 39 is provided at the top and bottom of the unwinding roller 32 , and moving blocks adapted to the moving groove 39 are fixedly mounted on the inner sides of the adjusting cylinder 33 and the clamping cylinder 38 .

[0034] The surface of the unwinding roller 32 is provided with an external thread groove, the inner side of the threaded sleeve 34 is provided with an internal thread groove adapted to the external thread groove, and handles are fixedly installed on both the front and rear sides of the adjustment cylinder 33.

[0035] A communicating hole for the limiting rod 43 to pass through is defined on the inner side of the regulating cylinder 33 , and a positioning hole adapted to the limiting rod 43 is defined on the inner side of the clamping block 37 .

[0036] The working principle of the printing paper positioning device of the printing machine provided by the utility model is as follows:

[0037] Step 1: Pull the limiting rods 43 on both sides outward, driving the movable block 41 to slide outward inside the movable hole 42 and squeezing the elastic member 44 to shrink. The movable block provided inside the clamping barrel 38 moves inside the movable groove 39, and the clamping block 37 is engaged with the inner side of the clamping groove 36. The reaction force of the elastic member 44 causes the limiting rod 43 to be inserted into the inner side of the positioning hole in the clamping block 37, so that the clamping barrel 38 and the adjusting barrel 33 are fitted together.

[0038] The second step: sleeve the printed paper tube on the surface of the two unwinding rollers 32, pull the limit rod 43 outward, release the limiting effect on the adjusting tube 33, manually turn the handle to drive the threaded sleeve 34 to rotate, and drive the adjusting tube 33 to move on the surface of the unwinding roller 32 through the threaded connection relationship with the external thread groove, and the adjusting tube 33 drives the clamping tube 38 to be inserted into the two ends of the printed paper tube to clamp and fix the printed paper tube, and the limit rod 43 is inserted into the inner side of the limiting hole 35 through the reaction force of the elastic member 44, thereby increasing the positioning effect of the clamping tube 38 on the printed paper tube, and the driving motor 24 drives the rotating disk 31 to rotate through the meshing setting of the two rotating gears 22, and the rotating disk 31 drives the printed paper tube to rotate through the unwinding roller 32 to complete the unwinding of the printed paper on the printed paper tube.

[0039] Compared with the related art, the printing paper positioning device of the printing machine provided by the present invention has the following advantages:

[0040] Beneficial effects:

[0041] By cooperating with each other in the various components of the device, the printed paper tube is sleeved on the surfaces of the two unwinding rollers 32, and the limiting rod 43 is pulled outward to release the limiting effect on the adjusting tube 33. The handle is manually turned to drive the threaded sleeve 34 to rotate, and through the threaded connection relationship with the external thread groove, the adjusting tube 33 is driven to move on the surface of the unwinding roller 32. The adjusting tube 33 drives the clamping tube 38 to be inserted into the two ends of the printed paper tube to clamp and fix the printed paper tube. The operation is simple and convenient, and no tools are required, which achieves the effect of convenient and quick replacement of the printed paper tube. In addition, in conjunction with the action of the limiting component 40, the limiting rod 43 is inserted into the inner side of the limiting hole 35 through the reaction force of the elastic member 44, thereby increasing the positioning effect of the clamping tube 38 on the printed paper tube.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A printing paper positioning device for a printing machine, characterized in that: include: A printing machine body (10), wherein a reeling assembly (20) is provided on the top of the printing machine body (10), a positioning assembly (30) is provided inside the reeling assembly (20), and a limiting assembly (40) is provided inside the positioning assembly (30); The unwinding assembly (20) includes a mounting frame (21) arranged on the top of the printing machine body (10); The positioning assembly (30) includes two rotating disks (31) rotatably arranged on the inner side of the mounting frame (21), and a reeling roller (32) is fixedly installed on the adjacent side of the two rotating disks (31), and an adjusting cylinder (33) is sleeved on the surface of the reeling roller (32) and is slidably connected thereto, and a threaded sleeve (34) is rotatably arranged on the side away from the two adjusting cylinders (33) and located on the outer edge of the reeling roller (32), and a plurality of limiting holes (35) are provided near the center on the front and rear sides of the reeling roller (32), and two clamping grooves (36) are provided on the adjacent side of the two reeling rollers (32), and a clamping block (37) is provided on the inner side of the clamping groove (36), and a clamping cylinder (38) is fixedly installed on the surface of the two clamping blocks (37) located on the same side; The limiting assembly (40) includes two movable blocks (41) arranged on the inner side of the adjustment cylinder (33), and a movable hole (42) is opened on the inner side of the movable block (41) for allowing the movable block (41) to slide forward and backward. A limiting rod (43) adapted to the limiting hole (35) is provided through the center of the inner side of the movable block (41) and is fixedly connected to the limiting hole (35). An elastic member (44) for driving the movable block (41) to slide is provided on the inner side of the movable hole (42) and at the outer edge of the limiting rod (43).

2. The calico paper positioning device of a calico printing machine according to claim 1, characterized in that: Two rotating gears (22) are rotatably provided on the left side of the mounting frame (21), a fixing frame (23) is fixedly installed on the left side of the mounting frame (21), a driving motor (24) is fixedly installed on the top of the fixing frame (23) for driving the rotating gears (22) at the top to rotate, the two rotating gears (22) are meshed with each other, the right end of the rotating gear (22) at the bottom is fixedly connected to the surface of the adjacent rotating disk (31), and a communication port for the rotating gear (22) to pass through is opened on the inner side of the fixing frame (23).

3. The calico paper positioning device of a calico printing machine according to claim 1, characterized in that: The unwinding roller (32) is provided with a movable groove (39) at the top and bottom, and movable blocks adapted to the movable groove (39) are fixedly mounted on the inner sides of the adjusting cylinder (33) and the clamping cylinder (38).

4. The calico paper positioning device of a calico printing machine according to claim 1, characterized in that: The surface of the unwinding roller (32) is provided with an external thread groove, the inner side of the threaded sleeve (34) is provided with an internal thread groove adapted to the external thread groove, and handles are fixedly installed on both the front and rear sides of the adjusting cylinder (33).

5. The calico paper positioning device for a calico printing machine according to claim 1, characterized in that: A communicating hole for the limiting rod (43) to pass through is provided on the inner side of the regulating cylinder (33), and a positioning hole adapted to the limiting rod (43) is provided on the inner side of each of the clamping blocks (37).

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