Paper pressing device for riding stapler

Abstract

The utility model relates to the technical field of paper printing and processing, in particular to a paper pressing device for a riding stapler, which comprises a riding stapler workbench, a lifting slip ring is in threaded connection with the outside of a threaded screw rod, a first buffer component is arranged outside a mounting frame, a second buffer component is arranged inside a lifting seat, and the second buffer component is in threaded connection with the lifting slip ring. And the inner side of the bearing frame rod is rotationally connected with a flat pressing cylinder. According to the paper pressing device for the riding stapler, a gear motor is used for driving an auxiliary gear, the auxiliary gear slowly drives one chain gear rod, the four chain gear rods synchronously drive four threaded lead screws to rotate at a constant speed, at the moment, a first buffering assembly is matched to decelerate a lifting sliding ring, and it is guaranteed that a lifting base is evenly stressed and descends at a constant speed; when the flat pressing cylinder rolls and makes contact with moving paper, the bearing frame rod can move upwards under the counter-acting force and is matched with the second buffering assembly to buffer the bearing frame rod, and therefore the situation that indentations are generated due to the fact that the pressure of the flat pressing cylinder is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of paper printing and processing, in particular to a paper pressing device for saddle stitching. Background Art

[0002] The saddle stitcher is a binding line that belongs to printing and processing machinery. Its processing steps include collating, saddle stitching, and cutting the finished products into rows at one time. The binding method is saddle stitching. After the product is printed and folded, it is placed in the saddle stitcher and processed into a finished product through the assembly line. It is generally used for the binding process of large quantities of books and magazines.

[0003] After searching, it was found that a paper pressing device for saddle stitching was disclosed in a utility model patent with Chinese patent publication number CN217373959U. The saddle stitching paper pressing device in the utility model patent is achieved by setting a spring so that the pressure roller can be elastically adjusted, thereby avoiding the situation where the pressure roller exerts too much pressure on the paper. However, combined with the pressure roller structure of the saddle stitching paper pressing device, it can be known that in order to ensure normal connection with the spring structure, there is a fault area in the middle part of the pressure roller. At this time, if the pressure roller exerts too much pressure on the paper, it is easy to produce indentations on the surface of the paper, affecting the flatness and qualified rate of paper products. Therefore, the elastic adjustment structure of the pressure roller needs to be further improved, and thus a paper pressing device for saddle stitching is proposed. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above object, the utility model provides the following technical solutions: a paper pressing device for saddle stitching, comprising a saddle stitching workbench, the top of which is fixedly connected with a mounting frame, and a buffer flat pressing structure is arranged on the inner side of the mounting frame;

[0006] The buffer and leveling structure includes a threaded screw that is rotatably connected to the inside of the mounting frame, the external thread of the threaded screw is connected to a lifting slip ring, a first buffer assembly is arranged on the outside of the mounting frame, a lifting seat is slidably connected to the inside of the mounting frame, a second buffer assembly is arranged inside the lifting seat, a bearing frame rod is slidably connected to the bottom of the lifting seat, and a leveling cylinder is rotatably connected to the inner side of the bearing frame rod.

[0007] As a further solution of the utility model: the mounting frame includes four column structures fixedly connected to the top of the riding and sewing dragon workbench, the tops of the four columns are fixedly connected with a top plate, the number of the threaded screws is four, and they are respectively rotatably connected to the inside of the four columns, the top of the top plate is rotatably connected with four sprocket gear rods, and the bottoms of the four sprocket gear rods are respectively fixedly connected to the tops of the four threaded screws.

[0008] As a further solution of the utility model: a main gear is sleeved and fixed on the outer side of the bottom of one of the sprocket rods, a sub-gear is meshed on the outer side of the main gear, and the ring gear diameter of the main gear is three times the diameter of the ring gear of the sub-gear, a reduction motor is fixedly installed on the top of the top plate, and the output end of the reduction motor is fixedly connected to the top of the sub-gear, and the number of the lifting slip rings is four, and the four lifting slip rings each include an outer ring slidably connected to the outer side of the column, and an inner ring is fixedly connected to the interior of each of the outer rings, and the four inner rings are respectively connected to the external threads of four threaded screws.

[0009] As a further solution of the utility model: the number of the first buffer components is four, and the four first buffer components all include a column tube fixedly connected to the outer side of the column, the interior of each of the column tubes is movably connected to a No. 1 buffer spring, and the interior of each column tube is slidably connected to a telescopic rod, each of the telescopic rods is slidably connected to the outer side of the column, and the left and right sides of the lifting seat are respectively fixedly connected to the outside of four outer rings.

[0010] As a further solution of the utility model: four vertical slots are opened inside the lifting seat, the number of the second buffer assemblies is four, the four second buffer assemblies each include an eccentric wheel rotatably connected to the inside of the four vertical slots, the outside of the four eccentric wheels are rotatably connected to a connecting rod, the inside of the four vertical slots are fixedly connected to a ring block, and the outer sides of the four ring blocks are sleeved and fixed with a No. 2 buffer spring.

[0011] As a further solution of the utility model: the number of the bearing frame rods is four, the tops of the four bearing frame rods respectively extend into the interior of the four vertical grooves, and are respectively slidably connected to the interior of the four ring blocks, the four connecting rods are respectively rotatably connected to the tops of the four bearing frame rods at the end away from the eccentric wheel, and the four No. 2 buffer springs are respectively fixedly connected to the outside of the four bearing frame rods at the side away from the ring block.

[0012] As a further solution of the utility model: the number of the flattening cylinders is two, the front and rear ends of the two flattening cylinders are rotatably connected to the inner sides of the bottoms of the four bearing frame rods respectively, and the inner side of the riding and sewing dragon workbench is transmission-connected with a conveyor belt.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the paper pressing device for the saddle stitcher first transmits the paper to be flattened to the right side through the conveyor belt of the saddle stitcher workbench, and uses the reduction motor to drive the sub-gear, so that the sub-gear slowly transmits one of the sprocket gear rods, and the four sprocket gear rods are synchronously driven to rotate at a uniform speed. At this time, the lifting slip ring is slowed down in cooperation with the first buffer component to ensure that the lifting seat is evenly stressed and descends at a uniform speed, preventing the flattening cylinder below from exerting a large pressure on the paper. When the flattening cylinder rolls and contacts the moving paper, the bearing frame rod will move upward under the reaction force, and cooperate with the second buffer component to buffer the bearing frame rod, further avoiding the situation where the flattening cylinder has excessive pressure and causes indentations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the riding-stitching dragon workbench of the utility model;

[0015] Figure 2 yes Figure 1 Front view of perspective;

[0016] Figure 3 yes Figure 2 Cross-sectional view of perspective;

[0017] Figure 4 yes Figure 2 A schematic diagram of the structure of the first buffer component in the viewing angle;

[0018] Figure 5 yes Figure 3 Schematic diagram of the lifting slip ring structure in the perspective;

[0019] Figure 6 yes Figure 3 A schematic diagram of the structure of the second buffer component in the viewing angle;

[0020] Figure 7 yes Figure 3 A schematic diagram of the enlarged structure in the middle.

[0021] The reference numerals and names in the figures are as follows:

[0022] Qidinglong workbench-1, mounting frame-2, buffer and flat pressing structure-3, threaded screw-301, lifting slip ring-302, outer ring-3021, inner ring-3022, first buffer assembly-303, column-3031, No. 1 buffer spring-3032, telescopic rod-3033, lifting seat-304, second buffer assembly-305, eccentric wheel-3051, ring block-3052, No. 2 buffer spring-3053, bearing frame rod-306, flat pressing cylinder-307, reduction motor-4. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-7 A paper pressing device for a saddle stitching machine comprises a saddle stitching machine workbench 1, a mounting frame 2 is fixedly connected to the top of the saddle stitching machine workbench 1, four column structures are fixedly connected to the top of the saddle stitching machine workbench 1, a top plate is fixedly connected to the top of the four columns, the mounting frame 2 comprises a top plate and four column structures, a buffer flat pressing structure 3 is arranged on the inner side of the mounting frame 2, a reduction motor 4 is fixedly installed on the top of the top plate, and the reduction motor 4 can ensure that the threaded screw 301 rotates at a uniform speed.

[0025] The buffering and leveling structure 3 includes a threaded screw 301 that is rotatably connected to the inside of the mounting frame 2, and a reduction motor 4 drives a sub-gear, which is meshed with a main gear structure of one of the sprocket gear rods, so that the four sprocket gear rods synchronously drive the threaded screw 301 to rotate, and the external thread of the threaded screw 301 is connected with a lifting slip ring 302, and the threaded screw 301 drives the inner sleeve ring 3022 structure to move up and down. The outside of the mounting frame 2 is provided with a first buffer assembly 303, and the movement of the outer sleeve ring 3021 is adjusted by using a No. 1 buffer spring 3032 and a telescopic rod 3033. The lifting seat 304 is slidably connected to the inner side of the mounting frame 2, and a second buffer assembly 305 is arranged inside the lifting seat 304. The bottom of the lifting seat 304 is slidably connected to a bearing frame rod 306, and the inner side of the bearing frame rod 306 is rotatably connected to a flattening cylinder 307. After the flattening cylinder 307 rolls and contacts the moving paper, the bearing frame rod 306 rises due to the reaction force and pushes the second buffer spring 3053 to be compressed, so as to buffer the bearing frame rod 306 and provide a certain pressure resistance for the paper below to prevent it from being deformed due to excessive pressure.

[0026] according to Figure 1 and Figure 2 As shown, the mounting frame 2 includes a top plate and four column structures below, four threaded screws 301 are rotatably connected to the inside of the four columns respectively, the top four corners of the top plate are rotatably connected to sprocket rods connected through a chain belt transmission, and the four sprocket rods are respectively connected to the tops of the four threaded screws 301, thereby driving the four threaded screws 301 to rotate synchronously through the sprocket rods.

[0027] according to Figure 3 and Figure 7As shown, a main gear is fixed on the outside of the bottom of one of the sprocket rods, and the reduction motor 4 is used to drive the sub-gear to mesh with the main gear, wherein the ring gear diameter of the main gear is three times the diameter of the sub-gear ring gear diameter, which can prevent the main gear from rotating too fast, and cooperate with the reduction motor 4 to achieve the deceleration effect when the threaded screw 301 rotates. A slide groove structure is opened on the outside of each column, and the lifting slip ring 302 is divided into an outer ring 3021 and an inner ring 3022. The outer ring 3021 is slidably connected to the outer side of the slide groove, and the inner ring 3022 enters the inner side of the slide groove and is threadedly connected to the outer side of the threaded screw 301, thereby driving the lifting slip ring 302 to move up and down for adjustment through the threaded screw 301.

[0028] according to Figure 3 and Figure 5 As shown, the first buffer assembly 303 includes a column tube 3031, a No. 1 buffer spring 3032 and a telescopic rod 3033, wherein the column tube 3031 is fixed to the outer side of the column, one end of the No. 1 buffer spring 3032 is movably connected to the column tube 3031, and the other end of the No. 1 buffer spring 3032 is connected to the telescopic rod 3033. When the outer ring 3021 slides up and down, it can move toward the inside of the column tube 3031 by pressing the telescopic rod 3033. At this time, the No. 1 buffer spring 3032 is elastically deformed under the force, thereby slowing down the movement of the outer ring 3021. The outer ring 3021 is connected to the left and right sides of the lifting seat 304, thereby achieving a deceleration effect when the lifting seat 304 moves downward.

[0029] according to Figure 3 and Figure 6 As shown, the second buffer assembly 305 includes an eccentric wheel 3051, a ring block 3052 and a second buffer spring 3053. The external rotation of the eccentric wheel 3051 is connected with a connecting rod. The top of the bearing frame rod 306 penetrates into the vertical groove structure of the lifting seat 304 and is slidably connected to the inner side of the ring block 3052. At the same time, the top of the bearing frame rod 306 is hinged to one end of the connecting rod.

[0030] according to Figure 3 and Figure 6 As shown, one side of the No. 2 buffer spring 3053 is fixed to the outside of the bearing frame rod 306. When the leveling cylinder 307 inside the bearing frame rod 306 contacts the moving paper, the bearing frame rod 306 will move upward under the reaction force, and the connecting rod will be pushed to rotate eccentrically under the guidance of the vertical groove and the ring block 3052. At this time, the No. 2 buffer spring 3053 is elastically compressed to buffer the movement of the bearing frame rod 306 and provide a certain pressure resistance for the paper below, thereby avoiding excessive pressure from the leveling cylinder 307, which causes the paper to be compressed and deformed.

[0031] The working principle of the utility model is as follows: the paper pressing device for the saddle stitching dragon first transmits the paper to be flattened to the right side through the conveyor belt of the saddle stitching dragon workbench 1, and uses the reduction motor 4 to drive the sub-gear, and the sub-gear slowly transmits the main gear structure of one of the sprocket gear rods, and synchronously drives the four threaded screws 301 to rotate at a uniform speed through the four sprocket gear rods. At this time, the No. 1 buffer spring 3032 of the first buffer assembly 303 and the telescopic rod 3033 are used to slow down the movement of the lifting slip ring 302, ensuring that the lifting seat 304 is evenly stressed and descends at a uniform speed, preventing the flattening cylinder 307 below from exerting a large pressure on the paper. When the flattening cylinder 307 moves down and rolls to contact the moving paper, the bearing frame rod 306 will move upward under the reaction force, and cooperate with the No. 2 buffer spring 3053 of the second buffer assembly 305 to buffer the bearing frame rod 306, providing a certain pressure resistance for the paper below, thereby avoiding the flattening cylinder 307 from causing indentations due to excessive downward pressure.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A paper pressing device for saddle stitching, comprising a saddle stitching workbench (1), characterized in that: The top of the saddle stitching workbench (1) is fixedly connected to a mounting frame (2), and a buffer flat-pressing structure (3) is provided on the inner side of the mounting frame (2); The buffering and leveling structure (3) comprises a threaded screw (301) rotatably connected to the inside of the mounting frame (2); the outer thread of the threaded screw (301) is threadably connected to a lifting slip ring (302); a first buffer assembly (303) is arranged on the outside of the mounting frame (2); a lifting seat (304) is slidably connected to the inside of the mounting frame (2); a second buffer assembly (305) is arranged on the inside of the lifting seat (304); a bearing frame rod (306) is slidably connected to the bottom of the lifting seat (304); and a leveling cylinder (307) is rotatably connected to the inner side of the bearing frame rod (306).

2. A paper pressing device for saddle stitching according to claim 1, characterized in that: The mounting frame (2) comprises four column structures fixedly connected to the top of the riding and stitching dragon workbench (1), the tops of the four columns being fixedly connected to a top plate, the number of the threaded screws (301) being four and being rotatably connected to the inside of the four columns respectively, the top of the top plate being rotatably connected to four sprocket gear rods, the bottoms of the four sprocket gear rods being fixedly connected to the tops of the four threaded screws (301) respectively.

3. A paper pressing device for saddle stitching according to claim 2, characterized in that: A main gear is sleeved and fixed on the outer side of the bottom of one of the sprocket rods, a sub-gear is meshed on the outer side of the main gear, and the ring gear diameter of the main gear is three times the diameter of the ring gear of the sub-gear. A reduction motor (4) is fixedly installed on the top of the top plate, and the output end of the reduction motor (4) is fixedly connected to the top of the sub-gear. There are four lifting slip rings (302), and the four lifting slip rings (302) each include an outer sleeve (3021) slidably connected to the outer side of a column, and an inner sleeve (3022) is fixedly connected to the inside of each outer sleeve (3021), and the four inner sleeves (3022) are respectively connected to the outer threads of four threaded screw rods (301).

4. A paper pressing device for saddle stitching according to claim 3, characterized in that: The number of the first buffer components (303) is four, and the four first buffer components (303) each include a column tube (3031) fixedly connected to the outer side of the column, each column tube (3031) is movably connected to a No. 1 buffer spring (3032), and each column tube (3031) is slidably connected to a telescopic rod (3033), and each telescopic rod (3033) is slidably connected to the outer side of the column, and the left and right sides of the lifting seat (304) are respectively fixedly connected to the outside of the four outer rings (3021).

5. The paper pressing device for saddle stitching according to claim 1, characterized in that: The lifting seat (304) is provided with four vertical slots inside, and the number of the second buffer components (305) is four. The four second buffer components (305) each include an eccentric wheel (3051) rotatably connected to the inside of the four vertical slots, the outside of the four eccentric wheels (3051) is rotatably connected to a connecting rod, the inside of the four vertical slots is fixedly connected to a ring block (3052), and the outside of the four ring blocks (3052) is sleeved and fixed with a No. 2 buffer spring (3053).

6. A paper pressing device for saddle stitching according to claim 5, characterized in that: The number of the bearing frame rods (306) is four, the tops of the four bearing frame rods (306) respectively extend into the interior of the four vertical grooves and are respectively slidably connected to the interior of the four ring blocks (3052), the four connecting rods are respectively rotatably connected to the tops of the four bearing frame rods (306) at one end away from the eccentric wheel (3051), and the four No. 2 buffer springs (3053) are respectively fixedly connected to the outside of the four bearing frame rods (306) at one side away from the ring block (3052).

7. The paper pressing device for saddle stitching according to claim 1, characterized in that: There are two flattening cylinders (307), and the front and rear ends of the two flattening cylinders (307) are rotatably connected to the inner sides of the bottoms of the four bearing frame rods (306) respectively. The inner side of the riding and stitching workbench (1) is transmission-connected to a conveyor belt.

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