A conveyor device for a rotary printing press

Abstract

This utility model discloses a conveying device for a rotary printing press, relating to the technical field of printing presses. It includes a base, a bidirectional lead screw, a paper feed roller, and transverse guide frames. Transverse guide frames are provided on both the left and right sides of the base. An adjustment mechanism is provided on the outer side of each transverse guide frame. The transverse guide frames adjust and position the distance between the two sets of transverse guide frames according to the size of the paper feed roller. A disassembly mechanism is provided on the outer side of the paper feed roller. This disassembly mechanism separates the threaded rods on both sides of the paper feed roller from the two sets of transverse guide frames according to usage requirements, thus avoiding the complicated steps required after disassembling the paper feed roller. Through the concealed storage structure of the inner sleeve fittings, the threaded rods and inner sleeve blocks are completely housed inside the equipment, effectively reducing the volume of exposed parts and making the overall structure more compact. The elastic contraction design of the spring column enables the automatic return function of the threaded rods, and the through-hole positioning provides multiple adjustable positioning options.

Description

Technical Field

[0001] This utility model relates to the technical field of printing presses, and specifically to a conveying device for a rotary printing press. Background Technology

[0002] The paper feeding system of a rotary printing press is one of its core systems, responsible for the high-speed, continuous, and precise transfer of paper from the feeding section to the printing unit and finally to the receiving section. Its design directly affects print quality, registration accuracy, and production efficiency.

[0003] Before printing, it is difficult to position paper feed rollers of different sizes according to usage requirements. Different sized brackets need to be installed, which increases the installation difficulty of paper feed rollers of different lengths. In addition, the threaded rods on both sides of the paper feed roller are fixed structures. During use, it is not possible to effectively replace the threaded rods when installing and using different models of paper feed rollers. Utility Model Content

[0004] The purpose of this invention is to provide a conveying device for a rotary printing press to solve the aforementioned defects caused by the prior art.

[0005] A conveying device for a rotary printing press includes a base, a bidirectional lead screw, a paper feed roller, and transverse guides. Transverse guides are provided on both the left and right sides of the base. An adjustment mechanism is provided on the outer side of each transverse guide. The transverse guides adjust and position the distance between the two sets of transverse guides according to the size of the paper feed roller. A disassembly mechanism is provided on the outer side of the paper feed roller. The disassembly mechanism separates the threaded rods on both sides of the paper feed roller from the two sets of transverse guides according to usage requirements, thereby avoiding complicated steps after the paper feed roller is disassembled from the transverse guides.

[0006] Preferably, the adjusting mechanism includes a support arm, a bidirectional lead screw, a guide rail, a slider, a positioning seat, and a paper guide roller. The bottom end of the support arm is connected to the slider, the outer side of the slider is connected to the bidirectional lead screw, the outer side of the slider is connected to the guide rail, the bottom end of the guide rail is connected to the base, the top end of the support arm is connected to the positioning seat, and the outer side of the positioning seat is bolted to the paper guide roller. The support arm is symmetrically arranged on both sides of the base, and the outer sides of both sets of positioning seats are connected to transverse guide frames.

[0007] Preferably, the guide rail is connected to the outside of the bidirectional lead screw via internally symmetrically arranged sliders, and the top of the slider is fitted with the bottom end of the support arm.

[0008] Preferably, the disassembly mechanism includes a paper guide roller, a nut, an inner sleeve, a threaded rod, an inner sleeve block, a spring post, and a positioning hole. The paper guide roller has inner sleeves on both sides. A spring post is welded to the inner end of the inner sleeve. The other end of the spring post is connected to the inner sleeve block. A threaded rod is welded to one side of the inner sleeve block. The other end of the threaded rod is connected to a transverse guide frame. A nut is threaded to the outer side of the threaded rod. Positioning holes are provided through the inner sleeve block and its outer side.

[0009] Preferably, the paper feed roller is connected to both sides of the transverse guide frame via symmetrically arranged threaded rods, and the threaded rods and the transverse guide frame are locked together by nuts.

[0010] Preferably, the inner sleeve is connected to one end of the inner sleeve block via an internally installed spring post.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The concealed storage structure of the inner sleeve fittings completely houses the threaded rod and inner sleeve block inside the equipment, effectively reducing the volume of exposed parts and making the overall structure more compact. The elastic contraction design of the spring column realizes the automatic return function of the threaded rod. The through-hole setting of the positioning hole provides multiple adjustable positioning options, which allows the symmetrically arranged threaded rod to be separated from the two sides of the transverse guide frame, thus facilitating the disassembly and replacement of the paper guide roller and the transverse guide frame.

[0013] 2. The symmetrical thread design of the two-way lead screw ensures that the two sides of the guide roller move synchronously in opposite directions, always keeping the center position aligned, avoiding paper deviation or uneven tension caused by unilateral offset. It is especially suitable for high-precision roll materials, avoiding deviation caused by unilateral adjustment. The combination of lead screw and guide rail can withstand the radial load of the paper guide roller, such as heavy roll paper, avoiding vibration or deformation, and avoiding paper deviation or uneven tension caused by unilateral offset. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the paper feed roller structure in this utility model.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the paper feed roller in this utility model.

[0017] Figure 4 This is a schematic diagram of the front section structure of the base in this utility model.

[0018] Figure 5 This is a schematic diagram of the front section structure of the inner sleeve fitting in this utility model.

[0019] in:

[0020] 1. Base; 2. Support arm; 3. Two-way lead screw; 4. Guide rail; 5. Slider; 6. Adjustment mechanism; 7. Positioning seat; 8. Paper feed roller; 9. Nut; 10. Transverse guide frame; 11. Disassembly mechanism; 12. Inner sleeve fitting; 13. Threaded rod; 14. Inner sleeve block; 15. Spring column; 16. Positioning hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 5 As shown, a conveying device for a rotary printing press includes a base 1, a bidirectional lead screw 3, a paper feed roller 8, and a transverse guide frame 10. Transverse guide frames 10 are provided on both the left and right sides of the base 1. An adjusting mechanism 6 is provided on the outer side of each transverse guide frame 10. The transverse guide frames 10 adjust and position the distance between the two sets of transverse guide frames 10 according to the size of the paper feed roller 8. A disassembly mechanism 11 is provided on the outer side of the paper feed roller 8. The disassembly mechanism 11 separates the threaded rods 13 on both sides of the paper feed roller 8 from the two sets of transverse guide frames 10 according to usage requirements, thereby avoiding complicated steps required after disassembling the transverse guide frames 10.

[0023] In this embodiment, the adjusting mechanism 6 includes a support arm 2, a bidirectional lead screw 3, a guide rail 4, a slider 5, a positioning seat 7, and a paper guide roller 8. The bottom end of the support arm 2 is connected to the slider 5, the outside of the slider 5 is connected to the bidirectional lead screw 3, the outside of the slider 5 is connected to the guide rail 4, the bottom end of the guide rail 4 is connected to the base 1, the top end of the support arm 2 is connected to the positioning seat 7, and the outside of the positioning seat 7 is bolted to the paper guide roller 8. The support arm 2 is symmetrically arranged on both sides of the base 1, and the outside of the two sets of positioning seats 7 are each connected to a transverse guide frame 10.

[0024] In this embodiment, the guide rail 4 is connected to the outside of the bidirectional lead screw 3 through internally symmetrically arranged sliders 5. The top of the slider 5 is fitted with the bottom end of the support arm 2. The threaded symmetrical design of the bidirectional lead screw 3 ensures that the two support arms 2 move synchronously in opposite directions to position the paper guide rollers 8 of different lengths.

[0025] In this embodiment, the disassembly mechanism 11 includes a paper guide roller 8, a nut 9, an inner sleeve 12, a threaded rod 13, an inner sleeve block 14, a spring column 15, and a positioning hole 16. Inner sleeves 12 are provided on both sides of the paper guide roller 8. A spring column 15 is welded to the inner end of the inner sleeve 12, and the other end of the spring column 15 is connected to the inner sleeve block 14. A threaded rod 13 is welded to one side of the inner sleeve block 14, and the other end of the threaded rod 13 is connected to a transverse guide frame 10. A nut 9 is threaded to the outer side of the threaded rod 13. Positioning holes 16 are provided on both the inner sleeve block 14 and its outer side. The inner sleeve 12 and the inner sleeve block 14 are displaced, causing the inner sleeve 12 to push the threaded rod 13, thus controlling the unfolding dimension of the threaded rod 13.

[0026] In this embodiment, the paper guide roller 8 is connected to both sides of the transverse guide frame 10 through symmetrically arranged threaded rods 13. The threaded rods 13 and the transverse guide frame 10 are locked together by nuts 9. The transverse guide frame 10 and the threaded rods 13 are connected through each other, and the nuts 9, the transverse guide frame 10 and the threaded rods 13 are locked together.

[0027] In this embodiment, the inner sleeve 12 is connected to one end of the inner sleeve block 14 through an internally provided spring post 15. The spring post 15 pushes one side of the inner sleeve block 14, thereby unfolding the inner sleeve block 14 and the threaded rod 13.

[0028] In practical applications, the conveyor system of this rotary printing press includes the following functions:

[0029] Step 1: During use, the operator holds the bidirectional lead screw 3 and uses the bidirectional lead screw 3 to drive the slider 5 to move outside the guide rail 4, so that the slider 5 drives the support arm 2 to move. The support arm 2 drives the spacing of the positioning seat 7 to adjust, so that the spacing between the two sets of positioning seats 7 is greater than the length of the two sets of paper feeding rollers 8, thereby completing the adjustment and control of the spacing between the two sets of support arms 2 and positioning seats 7.

[0030] Step 2: The operator can align the threaded rods 13 on both sides of the two sets of paper guide rollers 8 with the shaft through holes at both ends of the transverse guide frame 10, and then rotate the bidirectional screw 3 in the opposite direction, so that the slider 5 drives the support arm 2 to move inward, so that the transverse guide frame 10 is aligned with the threaded rods 13. Then, the nut 9 is tightened on both sides of the threaded rod 13, so that the outer side of the nut 9 is fitted and positioned with the outer side of the transverse guide frame 10.

[0031] Step 3: When the operator needs to disassemble the paper feed roller 8, first disassemble the nut 9 from the threaded rod 13, then press the threaded rod 13 inward, so that the inner sleeve block 14 set at the tail end of the threaded rod 13 moves inside the inner sleeve tube 12. The inner sleeve tube 12 is guided by the protruding end of the inner sleeve block 14 through the internal groove, so that the threaded rod 13 is separated from the transverse guide frame 10. The operator holds the two sides of the paper feed roller 8 to separate the paper feed roller 8 from the transverse guide frame 10.

[0032] Step 4: When it is necessary to adjust the unfolded length of the threaded rod 13, the operator pulls the threaded rod 13 so that the inner sleeve block 14 set on one side of the threaded rod 13 is guided by the guide groove cut in the inner end of the inner sleeve fitting 12. The unfolded size of the threaded rod 13 is adjusted by using the spring column 15 to elastically push one side of the inner sleeve block 14. Then, the inner sleeve block 14 and the outer side of the inner sleeve fitting 12 are locked through the equally spaced positioning holes 16 and bolts.

[0033] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A conveying device for a rotary printing press, characterized in that: The system includes a base (1), a bidirectional lead screw (3), a paper feed roller (8), and a transverse guide frame (10). The base (1) is provided with transverse guide frames (10) on both the left and right sides. The outer side of the transverse guide frame (10) is provided with an adjustment mechanism (6). The transverse guide frame (10) adjusts and positions the distance between the two sets of transverse guide frames (10) according to the size of the paper feed roller (8). The outer side of the paper feed roller (8) is provided with a disassembly mechanism (11). The disassembly mechanism (11) separates the threaded rods (13) provided on both sides of the paper feed roller (8) from the two sets of transverse guide frames (10) according to the usage requirements, thereby avoiding complicated steps after the paper feed roller (8) is disassembled from the transverse guide frame (10).

2. The conveying device for a rotary printing press according to claim 1, characterized in that: The adjusting mechanism (6) includes a support arm (2), a bidirectional lead screw (3), a guide rail (4), a slider (5), a positioning seat (7), and a paper guide roller (8). The bottom end of the support arm (2) is connected to the slider (5), and the outside of the slider (5) is connected to the bidirectional lead screw (3). The outside of the slider (5) is connected to the guide rail (4), and the bottom end of the guide rail (4) is connected to the base (1). The top end of the support arm (2) is connected to the positioning seat (7), and the outside of the positioning seat (7) is bolted to the paper guide roller (8). The support arm (2) is symmetrically arranged on both sides of the base (1), and the outside of the two sets of positioning seats (7) is connected to a transverse guide frame (10).

3. The conveying device for a rotary printing press according to claim 2, characterized in that: The guide rail (4) is connected to the outside of the bidirectional lead screw (3) through internally symmetrically arranged sliders (5), and the bottom end of the support arm (2) is attached to the top of the slider (5).

4. The conveying device for a rotary printing press according to claim 1, characterized in that: The disassembly mechanism (11) includes a paper guide roller (8), a nut (9), an inner sleeve (12), a threaded rod (13), an inner sleeve block (14), a spring column (15), and a positioning hole (16). The paper guide roller (8) is provided with an inner sleeve (12) on both sides. A spring column (15) is welded to the inner end of the inner sleeve (12). The other end of the spring column (15) is connected to the inner sleeve block (14). A threaded rod (13) is welded to one side of the inner sleeve block (14). The other end of the threaded rod (13) is connected to a transverse guide frame (10). The outer side of the threaded rod (13) is threaded with a nut (9). The inner sleeve block (14) and the outer side of the inner sleeve block (14) are both provided with positioning holes (16).

5. The conveying device for a rotary printing press according to claim 4, characterized in that: The paper feed roller (8) is connected to both sides of the transverse guide frame (10) by symmetrically arranged threaded rods (13), and the threaded rods (13) and the transverse guide frame (10) are locked together by nuts (9).

6. The conveying device for a rotary printing press according to claim 4, characterized in that: The inner sleeve (12) is connected to one end of the inner sleeve block (14) via an internally installed spring post (15).

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