Paper roller placing rack for printing machine

Abstract

The utility model provides a paper roller placing rack for a printing machine, and particularly relates to the technical field of printing machines, which comprises a connecting rod penetrating through a paper roller and used for placing the paper roller, two supporting frames used for limiting the placing position of the connecting rod, and a supporting frame arranged on the outer surfaces of the supporting frames and used for supporting the connecting rod. The elastic supporting piece comprises a base, a groove is formed in the base, a spring is arranged in the groove, a movable block connected with the top of the spring is arranged in the groove, the top of the movable block is connected with a containing block used for containing the end of the connecting rod, and a first radian groove is formed in the containing block. And through the arrangement of the spring supporting piece, the connecting rod can be supported, the spring supporting piece can rebound along with reduction of the weight of the paper roller, and the fixing position of the paper roller is moved upwards, so that the paper input position is located on the same straight line all the time, pulling of the paper roller to the paper is reduced, and the effect of protecting the paper is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a paper roll placement rack for a printing machine. Background Art

[0002] Paper roll racks are widely used in industries such as papermaking, printing, and toilet paper. During the process of paper printing, the paper roll rack is mainly used to suspend and support the paper roll and input the paper wound around the paper roll into the printing machine for printing work.

[0003] For existing paper roll racks, for example, a high-precision paper positioning mechanism for a printing machine disclosed in a patent with the patent publication number CN218753861U includes a support column. One side of the support column is fixedly connected with a positioning table, one side of the positioning table is fixedly connected with a paper roll rack, and a paper feeding roll is rotatably connected to one side of the paper roll rack. The structure of the paper roll rack in this patent is relatively simple and only has the function of supporting and positioning the paper roll, with a single function.

[0004] Existing paper roll racks usually only fix the paper roll at a specified height. However, as the diameter of the paper roll itself decreases, if the fixing position of the paper roll is not adjusted and the paper is input at the original position, to a certain extent, the pulling force of the paper roll rack on the paper will increase, which may cause the paper to break or be stretched.

[0005] Therefore, it is necessary to design a paper roll placement rack that can adjust the fixing position of the paper roll as the paper roll becomes smaller. Summary of the Utility Model

[0006] In order to solve the above problems, the utility model proposes a paper roll placement rack for a printing machine to more precisely solve the above problems.

[0007] The utility model is realized through the following technical solutions:

[0008] The utility model proposes a paper roll placement rack for a printing machine, which includes a connecting rod passing through the paper roll, two support frames for supporting and placing the connecting rod, and an elastic support member arranged on the outer surface of the support frame for supporting the connecting rod. The elastic support member includes a seat body, a groove is formed in the seat body, a spring is arranged in the groove, a movable block connected to the top of the spring is arranged in the groove, a placement block for placing the end of the connecting rod is connected to the top of the movable block, a first arc groove is formed in the placement block, a limiting groove is formed at the top of the support frame, the limiting groove includes a second arc groove with an inner diameter larger than that of the first arc groove, and a rectangular groove is arranged above the second arc groove.

[0009] Further, in the present utility model, the length of the limiting groove is greater than the length of the connecting rod, and the width of the limiting groove is greater than the width of the connecting rod.

[0010] Further, the present utility model further includes a sliding assembly for adjusting the position of the elastic support member.

[0011] Further, the sliding assembly includes a lead screw assembly. The lead screw assembly includes a housing. A motor is provided on one side of the housing. The output end of the motor is connected to a lead screw. One end of the lead screw passes through one side of the housing. A lead screw nut is fitted outside the lead screw. A first track is provided on the housing. A first connection end is provided at the bottom of the seat body, and one end of the first connection end passes through the track and is connected to the lead screw nut.

[0012] Further, the sliding assembly further includes a cylinder assembly. The cylinder assembly includes a support plate, a cylinder member provided below the support plate, and a second track provided on the support plate. A second connection end is provided at the bottom of the seat body. The bottom of the second connection end passes through the second track and is connected to the output end of the cylinder member.

[0013] Further, the support frame is trapezoidally arranged.

[0014] Advantages of the present utility model:

[0015] The setting of the spring support member can not only be used to support the connecting rod, but also rebound as the weight of the paper roll decreases, and move the fixed position of the paper roll upward, so that the paper input position is always on the same straight line, thereby reducing the pulling force of the paper roll on the paper, and to a certain extent, playing a role in protecting the paper; the setting of the sliding assembly can be used to adjust the left and right positions of the elastic support member, and synchronously adjust the left and right positions of the connecting rod. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure in the present utility model;

[0017] Figure 2 is a schematic cross-sectional structure diagram of the connection between the elastic support member and the lead screw assembly in the present utility model;

[0018] Figure 3 is a schematic diagram of the support frame structure in the present utility model;

[0019] Figure 4 is a schematic diagram of another design structure of the sliding assembly in the present utility model;

[0020] Figure 5 is the present utility modelFigure 4 Schematic diagram of the connection structure between the sliding component and the elastic support in

[0021] In the figure, 1 is the connecting rod; 2 is the support frame; 21 is the second arc groove; 22 is the limiting groove; 23 is the rectangular groove; 3 is the elastic support; 31 is the seat body; 32 is the groove; 33 is the spring; 34 is the movable block; 35 is the placement block; 351 is the first arc groove; 4 is the sliding component; 41 is the lead screw assembly; 411 is the housing; 412 is the motor; 413 is the lead screw; 414 is the lead screw nut; 415 is the first track; 416 is the first connection end; 42 is the cylinder assembly; 421 is the support plate; 422 is the cylinder part; 423 is the second track; 424 is the second connection end; 425 is the reinforcing plate; 5 is the paper roll. Specific implementation manner

[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] Reference Figures 1-5 , a paper roll placement rack for a printing machine, comprising a connecting rod 1 passing through the paper roll 5, two support frames 2 for supporting and placing the connecting rod 1, and an elastic support 3 disposed on the outer surface of the support frame 2 and used for supporting the connecting rod 1. The elastic support 3 includes a seat body 31, a groove 32 is formed on the seat body 31, a spring 33 is disposed in the groove 32, a movable block 34 connected to the top of the spring 33 is disposed in the groove 32, a placement block 35 for placing the end of the connecting rod 1 is connected to the top of the movable block 34, a first arc groove 351 is formed on the placement block 35, a limiting groove 22 is formed at the top of the support frame 2, the limiting groove 22 includes a second arc groove 21 with an inner diameter larger than that of the first arc groove 351, and a rectangular groove 23 is disposed above the second arc groove 21;

[0025] First, the staff takes the connecting rod 1, passes the connecting rod 1 through the paper roll 5. Then, the staff lifts both ends of the connecting rod 1 and places the connecting rod 1 on the tops of the two support frames 2, and makes the connecting rod 1 contact the first arc groove 351 in the elastic support member 3. When the first arc groove 351 receives the downward gravity of the connecting rod 1, due to the existence of the spring 33, the placing block 35 and the movable block 34 will move downward. At this time, the spring 33 will be in a compressed state. Finally, as the paper on the paper roll 5 is used, the weight of the paper roll 5 will continuously decrease. When the gravity of the paper roll 5 decreases, the gravity acting on the spring 33 will decrease. At this time, the spring 33 will gradually rebound due to the decrease in gravity, so that the fixed position of the paper roll 5 moves upward, making the paper input always in the same straight line, thereby reducing the pulling force of the paper roll 5 on the paper, and to a certain extent, playing a role in protecting the paper;

[0026] In this embodiment, the settings of the second arc groove 21 and the rectangular groove 23 can provide space for the movement of the paper roll 5, thus ensuring the progress of the adjustment work of the fixed position of the paper roll 5;

[0027] The limiting groove 22 includes a second arc groove 21 with an inner diameter larger than that of the first arc groove 351. The advantage of adopting this design is that the setting of the second arc groove 21 does not affect the installation position of the paper roll 5. At the same time, in extreme cases, the second arc groove 21 can also play a supporting role for the connecting rod 1, and can avoid the phenomenon that the connecting rod 1 detaches from the support frame, thus playing a role in protecting the support frame 2.

[0028] Preferably, refer to Figure 1 and Figure 3 , the length of the limiting groove 22 is greater than the length of the connecting rod 1, and the width of the limiting groove 22 is greater than the width of the connecting rod 1; the advantage of adopting this setting is that when the connecting rod 1 is installed, the length difference and width difference between the limiting groove 22 and the connecting rod 1 can provide a basis for the adjustment work of the fixed position of the connecting rod 1. Specifically, the existence of the length difference can provide a basis for the left - right position adjustment work of the connecting rod 1, and the existence of the width difference can provide a basis for the up - down position adjustment work of the connecting rod 1.

[0029] Preferably, it further includes a sliding component 4 for adjusting the position of the elastic support member 3; the setting of the sliding component 4 can be used for the left - right position adjustment work of the elastic support member 3 and synchronously realize the left - right position adjustment work of the connecting rod 1.

[0030] Preferably, refer to Figure 2, the sliding component 4 includes a lead screw 413 component 41. The lead screw 413 component 41 includes a housing 411. On one side of the housing 411, a motor 412 is provided. The output end of the motor 412 is connected to a lead screw 413. One end of the lead screw 413 passes through one side of the housing 411. A lead screw nut 414 is fitted outside the lead screw 413. A first track 415 is provided on the housing 411. A first connection end 416 is provided at the bottom of the seat body 31, and one end of the first connection end 416 passes through the track and is connected to the lead screw nut 414;

[0031] During the use of the paper roll 5, as the diameter and weight of the paper roll 5 decrease, the motor 412 will drive the lead screw 413 to rotate, and the lead screw 413 shaft will move left or right along the rotating lead screw 413. The moving lead screw 413 shaft will synchronously drive the first connection end 416 to move along the slide rail, so as to realize the position adjustment of the elastic support member 3. Further, the fixed position of the connecting rod 1 is synchronously adjusted;

[0032] Preferably, referring to Figure 4 and Figure 5 , the sliding component 4 further includes a cylinder component 42. The cylinder component 42 includes a support plate 421, a cylinder member 422 provided below the support plate 421, and a second track 423 provided on the support plate 421. A second connection end 424 is provided at the bottom of the seat body 31. The bottom of the second connection end 424 passes through the second track 423 and is connected to the output end of the cylinder member 422; The setting of the cylinder member 422 can also push and pull the connection end, so that the elastic support member 3 moves left or right along the track. Further, the fixed position of the connecting rod 1 is synchronously adjusted;

[0033] In this embodiment, the setting of the support plate 421 can play a role in supporting the elastic support member 3. Considering the weight of the paper roll 5, referring to Figure 5 , a reinforcing plate 425 is provided at the bottom of the support plate 421, and the cylinder member 422 is provided inside one side of the reinforcing plate 425. Among them, the setting of the reinforcing plate 425 can increase the gravity-bearing limit of the support plate 421 itself, so as to ensure the paper conveying work.

[0034] It should be noted that regarding the control principle of the motor 412, the principle of the lead screw 413 and the lead screw 413 shaft, and the principle of the cylinder member 422, for those skilled in the art, it belongs to well-known technology. Therefore, it is not described in detail in this application document. For example, design an independent control console, and this control console is electrically connected to the motor 412 or the cylinder member 422.

[0035] Preferably, referring to Figure 3 , the support frame 2 is trapezoidally arranged; The trapezoidally arranged support frame 2 can bear greater gravity.

[0036] Of course, the present utility model may also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present utility model.

Claims

1. A paper roll placement rack for a printing press, characterized in that: It includes a connecting rod passing through a paper roller, two supporting frames for supporting and placing the connecting rod, and an elastic supporting member arranged on the outer surface of the supporting frame and used to support the connecting rod, the elastic supporting member includes a seat body, the seat body is provided with a groove, a spring is arranged in the groove, a movable block connected to the top of the spring is arranged in the groove, a placement block for placing the end of the connecting rod is connected to the top of the movable block, a first arc groove is provided on the placement block, a limiting groove is provided on the top of the supporting frame, the limiting groove includes a second arc groove with an inner diameter larger than the first arc groove, and a rectangular groove is arranged above the second arc groove.

2. The paper roller placement rack for a printing press according to claim 1, characterized in that: The length of the limiting groove is greater than the length of the connecting rod, and the width of the limiting groove is greater than the width of the connecting rod.

3. The paper roller placement stand for a printing press according to claim 1, characterized in that: It also includes a sliding assembly for adjusting the position of the elastic support member.

4. The paper roller placement stand for a printing press according to claim 3, characterized in that: The sliding assembly includes a screw assembly, and the screw assembly includes a shell, a motor is arranged on one side of the shell, a screw is connected to the output end of the motor, one end of the screw passes through one side of the shell, a screw nut is matched outside the screw, a first track is opened on the shell, a first connecting end is arranged at the bottom of the seat body, and one end of the first connecting end passes through the track and is connected to the screw nut.

5. The paper roller placement stand for a printing press according to claim 3, characterized in that: The sliding assembly also includes a cylinder assembly, which includes a support plate, a cylinder member arranged below the support plate, and a second track arranged on the support plate. A second connecting end is arranged at the bottom of the seat body, and the bottom of the second connecting end passes through the second track and is connected to the output end of the cylinder member.

6. The paper roller placement stand for a printing press according to claim 1, characterized in that: The support frame is arranged in a trapezoidal shape.

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