Limitable paper pressing device for riding stapler

Abstract

The utility model discloses a limitable paper pressing device for a riding stapler, which relates to the technical field of riding staplers and comprises a riding stapler main body and a protective frame, mounting plates are arranged on two sides of the lower end of the protective frame, the protective frame is mounted on the riding stapler main body through the mounting plates, a mounting frame is arranged in the protective frame, and a paper pressing roller is arranged in the mounting frame. Supporting rods are coupled to the two ends of the paper pressing roller, mounting grooves are formed in the two sides of the inner wall of the mounting frame, locking mechanisms acting on the supporting rods are arranged in the mounting grooves, and a lifting mechanism acting on the mounting frame is arranged on the upper side face of the protection frame. Paper stacks can be flatly rolled by the paper pressing roller through the two limiting plates, the situation that finished products are unqualified due to the fact that the paper stacks are rolled and shaped by the paper pressing roller under the condition that the paper stacks are irregular and inclined is avoided, and meanwhile workers can conveniently arrange and align the stacked paper stacks.

Description

Technical Field

[0001] The utility model relates to the technical field of saddle stitchers, in particular to a paper pressing device with limit function for saddle stitchers. Background Art

[0002] With the industrialization process, automated production machines in all walks of life have emerged one after another, and printing and processing machines are no exception. A saddle stitcher, a binding production line, includes collating, saddle stitching, and cutting the finished product in one go. The binding method is saddle stitching, that is, after the product is printed and folded, it is put into the saddle stitcher, and after passing through the production line, the finished product comes out, which is generally used for binding large quantities of notebooks and magazines.

[0003] As described in the published patent "Paper limiting device for a packaging and printing device" with the publication number CN218966442U, printing is a technology for batch copying the content of the original manuscript. Most modern mechanical printing uses conveyor belts to transport paper and uses printing mechanisms to achieve fast dynamic printing. However, during printing, the paper may be placed unevenly, resulting in incorrect printing pattern positions and thus damaging the printing effect. Therefore, it is necessary to perform a limiting operation on the printing paper before printing.

[0004] To sum up, when the paper stack after collating and folding is transported by the conveyor belt of the saddle stitcher to the lower part of the paper pressing roller for rolling, since the paper stack is formed by stacking or folding multiple paper sheets, during the movement of the paper stack on the conveyor belt, it is easily affected by the vibration of the machine or the blowing of the air flow, and the paper sheets are prone to be uneven and skewed. After the paper stack with unevenness and skewness is rolled and shaped by the paper pressing roller, it is easy to cause the paper sheets in the paper stack to protrude, resulting in unqualified finished products.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Content of the Utility Model

[0006] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A paper pressing device with limit function for a saddle stitcher, including a saddle stitcher main body and a protective frame. Installation plates are provided on both sides of the lower end of the protective frame, and the protective frame is installed on the saddle stitcher main body through the installation plates. An installation frame is arranged inside the protective frame, a paper pressing roller is arranged inside the installation frame, both ends of the paper pressing roller are axially connected with support rods, installation grooves are opened on both sides of the inner wall of the installation frame, and a locking mechanism acting on the support rods is arranged inside the installation grooves. A lifting mechanism acting on the installation frame is arranged on the upper side of the protective frame;

[0008] A limiting mechanism is provided on the main body of the saddle stitcher. The limiting mechanism includes limiting plates provided on both sides of the upper side surface of the saddle stitcher main body. Two long plates are fixedly connected to the outer ends of the limiting plates. Adjusting long grooves are formed on the long plates. Through grooves corresponding to the four long plates are formed on the mounting plate. The through grooves penetrate through the outer protection plate of the saddle stitcher main body. A fixing block is fixedly provided at the outer end of the mounting plate below the through groove. A screw hole is formed on the fixing block. The long plate penetrates through the through groove and the adjusting long groove corresponds to the screw hole. A bolt is provided on the fixing block. A gasket is fixedly connected to the bottom surface of the nut of the bolt. The screw rod of the bolt passes through the adjusting long groove and is screwed with the screw hole.

[0009] As a further solution of the present utility model: Smooth plates are provided on the opposite side surfaces of the two limiting plates. A plug-in portion is formed on the side surface of the smooth plate facing the limiting plate. A plug-in groove is formed on the side surface of the limiting plate facing the smooth plate.

[0010] As a further solution of the present utility model: The installation groove includes mechanism grooves and pushing grooves formed on both sides of the inner wall of the installation frame. The pushing groove is in an inverted "L" shape and communicates with the mechanism groove, and one end of the pushing groove communicates with the external space on the side surface of the installation frame.

[0011] As a further solution of the present utility model: The locking mechanism includes locking blocks provided on both sides inside the mechanism groove. Locking arc portions and arc portions are respectively formed at the lower end and the upper end of the opposite side surfaces of the two locking blocks. A convex portion is formed between the locking arc portion and the arc portion;

[0012] Locking springs are provided between the two locking blocks and the mechanism groove.

[0013] As a further solution of the present utility model: A positioning block is further provided at the bottom end of the mechanism groove. A positioning groove matching the positioning block is formed on the support rod.

[0014] As a further solution of the present utility model: The lifting mechanism includes a telescopic cylinder installed on the upper side surface of the protection frame. The lower side surface of the telescopic cylinder has a telescopic rod. The telescopic rod penetrates through the protection frame and is fixedly connected to the installation frame.

[0015] As a further solution of the present utility model: Slots are formed on both sides of the protection frame. Two limiting rods are fixedly installed in the slots;

[0016] Activity plates are provided on both sides of the installation frame. Through holes are formed on the activity plates. The activity plates are slidably arranged on the limiting rods by means of the through holes.

[0017] Compared with the prior art, the beneficial effects of this technical solution are:

[0018] 1. When performing the paper pressing work, place the paper stack to be pressed after collating and folding between the two limit plates on the conveyor belt of the saddle stitcher main body. Then, push the long plate to make the two limit plates stick to both sides of the paper stack. After the positions of the two limit plates are adjusted, turn the bolt so that the bolt passes through the adjustment long slot and is screwed into the screw hole on the fixed block. During the process of the bolt turning into the screw hole, it will push the gasket to press the long plate, thereby fixing the position of the limit plate. By using the two limit plates, the paper stack can be evenly rolled by the paper pressing roller, avoiding the situation that the paper stack is rolled and shaped by the paper pressing roller when it is uneven and skewed, resulting in unqualified finished products. At the same time, it is convenient for the staff to sort and align the stacked paper stacks;

[0019] 2. Release the pressure on the long plate by turning the bolt, pull the long plate to make the two limit plates match different sizes of paper, and then fix the position of the limit plate by tightening the bolt, so as to realize the limitation of different sizes of paper;

[0020] 3. Using stainless steel metal to make the smooth plate can reduce the friction generated when the paper moves and avoid damage to the paper. When installing the smooth plate, the insertion part can be slid into the formed insertion slot on the limit plate, so as to quickly complete the installation of the smooth plate;

[0021] 4. Push the support rod of the paper pressing roller into the installation slot, and use the locking block and locking spring of the locking mechanism to lock the support rod, thereby completing the installation of the paper pressing roller. The operation is simple and fast, which is convenient for quickly replacing the paper pressing roller when the paper pressing roller is damaged due to long-term contact with the paper surface;

[0022] 5. When the support rod moves downward, the positioning slot will be inserted into the positioning block, thereby restricting the rotation of the support rod.

[0023] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the structural schematic diagram of the present utility model;

[0026] Figure 2 is the structural schematic diagram of another perspective of the present utility model;

[0027] Figure 3 is a schematic structural view of the limit mechanism of the present utility model;

[0028] Figure 4 is a schematic structural view when the paper pressing roller of the present utility model is installed in the installation frame;

[0029] Figure 5 is a schematic plan view of the locking mechanism of the present utility model;

[0030] The corresponding reference numerals in the drawings are explained as follows:

[0031] 1, saddle stitcher main body; 2, protective frame; 3, installation frame; 4, paper pressing roller; 5, locking mechanism; 6, lifting mechanism; 7, limit mechanism;

[0032] 201, mounting plate; 202, through groove; 203, slotted opening; 204, limit rod;

[0033] 301, installation groove; 3011, mechanism groove; 3012, pushing groove; 302, positioning block; 303, movable plate;

[0034] 401, support rod; 402, positioning groove;

[0035] 501, locking block; 502, locking arc portion; 503, arc portion; 504, protruding portion; 505, locking spring;

[0036] 601, telescopic cylinder; 602, telescopic rod;

[0037] 701, limit plate; 702, long plate; 703, adjusting long groove; 704, fixing block; 705, screw hole; 706, bolt; 707, gasket; 708, smooth plate; 709, insertion portion; 710, insertion groove. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0039] Please refer to Figures 1-5, A paper pressing device with limited position for a saddle stitching machine, including a saddle stitching machine main body 1 and a protective frame 2. Installation plates 201 are provided on both sides of the lower end of the protective frame 2. The protective frame 2 is installed on the saddle stitching machine main body 1 through the installation plates 201. An installation frame 3 is provided inside the protective frame 2. A paper pressing roller 4 is provided inside the installation frame 3. Support rods 401 are axially connected to both ends of the paper pressing roller 4. Installation grooves 301 are opened on both sides of the inner wall of the installation frame 3. A locking mechanism 5 acting on the support rods 401 is provided inside the installation grooves 301. A lifting mechanism 6 acting on the installation frame 3 is provided on the upper side of the protective frame 2;

[0040] In an embodiment of the present invention, refer to Figures 1-3 , A limiting mechanism 7 is provided on the saddle stitching machine main body 1. The limiting mechanism 7 includes limiting plates 701 provided on both sides of the upper side of the saddle stitching machine main body 1. Two long plates 702 are fixedly connected to the outer ends of the limiting plates 701. Adjustment long grooves 703 are opened on the long plates 702. Through grooves 202 corresponding to the four long plates 702 are opened on the installation plates 201. The through grooves 202 penetrate through the outer protection plate of the saddle stitching machine main body 1. Fixing blocks 704 are fixedly provided at the outer ends of the installation plates 201 below the through grooves 202. Screw holes 705 are opened on the fixing blocks 704. The long plates 702 penetrate through the through grooves 202 and the positions of the adjustment long grooves 703 correspond to the screw holes 705. Bolts 706 are provided on the fixing blocks 704. A gasket 707 is fixedly connected to the bottom surface of the nut of the bolt 706. The screw rod of the bolt 706 passes through the adjustment long groove 703 and is screwed into the screw hole 705.

[0041] Specifically, when performing the paper pressing work, the paper stack to be pressed after collating and folding is placed between the two limiting plates 701 on the conveyor belt of the saddle stitching machine main body 1. Then, by pushing the long plates 702, the two limiting plates 701 are made to adhere to both sides of the paper stack. After the positions of the two limiting plates 701 are adjusted, by turning the bolt 706, the bolt 706 passes through the adjustment long groove 703 and is screwed into the screw hole 705 on the fixing block 704. During the process of the bolt 706 being screwed into the screw hole 705, the gasket 707 will be pushed to press the long plate 702, thereby fixing the position of the limiting plate 701. Then, connect to an external power supply and start the saddle stitching machine main body 1. Use the saddle stitching machine main body 1 to convey the paper stack under the paper pressing roller 4 for paper pressing work. At this time, since the limiting plate 701 is in contact with both sides of the paper stack, the paper stack can be evenly rolled by the paper pressing roller 4, avoiding the situation where the paper stack is rolled and shaped by the paper pressing roller 4 when it is uneven and skewed, resulting in unqualified finished products.

[0042] At the same time, the two limiting plates 701 can also facilitate the staff to organize and align the stacked papers.

[0043] Preferably, by turning the bolt 706 to release the pressing of the long plate 702, pulling the long plate 702 can make the two limiting plates 701 match papers of different sizes. Then, by tightening the bolt 706 to fix the position of the limiting plate 701, the limitation of papers of different sizes can be realized.

[0044] More preferably, when pulling the long board 702 to adjust the position of the limit board 701, the long board 702 translates inside the through groove 202 that penetrates the mounting plate 201 and the guard plate of the saddle stitcher main body 1. The through groove 202 can be used to limit the long board 702, which is beneficial for the staff to horizontally pull the long board 702, and thus facilitate the adjustment of the distance between the two limit boards 701.

[0045] Furthermore, smooth plates 708 are provided on the opposite sides of the two limit boards 701. An insertion portion 709 is formed on the side of the smooth plate 708 facing the limit board 701, and an insertion groove 710 is formed on the side of the limit board 701 facing the smooth plate 708. The smooth plate 708 can be made of stainless steel metal.

[0046] Specifically, when the two limit boards 701 limit the paper during paper movement, the smooth plate 708 made of stainless steel metal can reduce the friction generated during paper movement and avoid paper damage;

[0047] When installing the smooth plate 708, the insertion portion 709 can be aligned with the insertion groove 710 formed on the limit board 701 and slid in, so as to quickly complete the installation of the smooth plate 708. The insertion groove 710 does not completely penetrate the limit board 701 from top to bottom. Therefore, after the smooth plate 708 is installed, the bottom of the insertion portion 709 can be supported.

[0048] In the embodiment of the present utility model, referring to Figures 1-2 and Figures 4-5 , the installation groove 301 includes mechanism grooves 3011 and pushing grooves 3012 formed on both sides of the inner wall of the installation frame 3. The pushing groove 3012 has an inverted "L" shape and communicates with the mechanism groove 3011, and one end of the pushing groove 3012 communicates with the external space on the side of the installation frame 3. The locking mechanism 5 includes locking blocks 501 arranged on both sides inside the mechanism groove 3011. The lower end and the upper end of the opposite sides of the two locking blocks 501 are respectively formed with locking arc portions 503 and arc portions 503. A convex portion 504 is formed between the locking arc portion 503 and the arc portion 503;

[0049] Locking springs 505 are provided between the two locking blocks 501 and the mechanism groove 3011.

[0050] Specifically, when installing the paper pressing roller 4, the support rods 401 at both ends of the paper pressing roller 4 are pushed in through the push-in grooves 3012, and after reaching the corner of the push-in grooves 3012, the support rods 401 are pressed down to enter the mechanism grooves 3011. During the downward movement of the support rods 401, they first contact the arc-shaped portions 503 of the two locking blocks 501, and then, when the downward pressure is continued, the support rods 401 open the two locking blocks 501 and pass through the protruding portions 504 to enter the locking arc-shaped portions 503. When the support rods 401 open the two locking blocks 501, the locking blocks 501 are locked. The locking spring 505 between the support rod 401 and the mechanism groove 3011 will be compressed. Therefore, when the support rod 401 moves down into the locking arc portion 503, the locking springs 505 on both sides use elastic force to push the two locking blocks 501 to close to each other, thereby clamping the support rod 401, and the protrusion 504 at the upper end of the locking arc portion 503 limits the upward movement of the support rod 401, thereby completing the installation of the paper pressing roller 4. The operation is simple and quick, and it is convenient to quickly replace the paper pressing roller 4 when the paper pressing roller 4 is damaged due to long-term contact with the paper surface.

[0051] Furthermore, a positioning block 302 is provided at the bottom end of the mechanism groove 3011 , and a positioning groove 402 matching the positioning block 302 is formed on the support rod 401 .

[0052] When the locking mechanism 5 locks the support rod 401, the positioning groove 402 will be plugged into the positioning block 302 when the support rod 401 moves downward, thereby limiting the rotation of the support rod 401. The support rod 401 is rotatably connected to the paper pressing roller 4 through a bearing, and one end of the support rod 401 is fixed in the mechanism groove 3011 and cannot rotate, so that the paper pressing roller 4 can rotate.

[0053] In the embodiments of the present invention, reference is made to Figures 1-2 The lifting mechanism 6 includes a telescopic cylinder 601 installed on the upper side of the protection frame 2, and a telescopic rod 602 is provided on the lower side of the telescopic cylinder 601. The telescopic rod 602 penetrates the protection frame 2 and is fixedly connected to the installation frame 3.

[0054] Specifically, the telescopic rod 602 of the telescopic cylinder 601 is telescopically moved to drive the installation frame 3, thereby adjusting the height position of the paper pressing roller 4 installed in the installation frame 3, so that the paper pressing roller 4 can match papers of different thicknesses.

[0055] Furthermore, the protective frame 2 is provided with slots 203 on both sides, and two limit rods 204 are fixed in the slots 203;

[0056] Movable plates 303 are disposed on both sides of the installation frame 3 . Through holes are formed on the movable plates 303 . The movable plates 303 are slidably disposed on the limiting rods 204 by utilizing the through holes.

[0057] Specifically, when adjusting the height of the paper pressing roller 4 by means of the lifting mechanism 6, the movable plates 303 on both sides of the mounting frame 3 slide on the limiting rods 204 in the slots 203, which can improve the stability of the mounting frame 3.

[0058] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and that the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A paper pressing device with limit function for saddle stitcher, characterized in that, It includes a saddle stitcher main body (1) and a protective frame (2). Installation plates (201) are provided on both sides of the lower end of the protective frame (2). The protective frame (2) is installed on the saddle stitcher main body (1) through the installation plates (201). An installation frame (3) is arranged inside the protective frame (2). A paper pressing roller (4) is arranged inside the installation frame (3). Both ends of the paper pressing roller (4) are pivotally connected with support rods (401). Installation grooves (301) are formed on both sides of the inner wall of the installation frame (3). A locking mechanism (5) acting on the support rods (401) is arranged inside the installation grooves (301). A lifting mechanism (6) acting on the installation frame (3) is arranged on the upper side of the protective frame (2); A limiting mechanism (7) is arranged on the saddle stitcher main body (1). The limiting mechanism (7) includes limiting plates (701) arranged on both sides of the upper side of the saddle stitcher main body (1). Two long plates (702) are fixedly connected to the outer ends of the limiting plates (701). Adjusting long grooves (703) are formed on the long plates (702). Through grooves (202) corresponding to the four long plates (702) are formed on the installation plates (201). The through grooves (202) penetrate through the outer protection plate of the saddle stitcher main body (1). Fixing blocks (704) are fixedly arranged at the outer ends of the installation plates (201) below the through grooves (202). Screw holes (705) are formed on the fixing blocks (704). The long plates (702) penetrate through the through grooves (202) and the positions of the adjusting long grooves (703) correspond to those of the screw holes (705). Bolts (706) are arranged on the fixing blocks (704). Gaskets (707) are fixedly connected to the bottom surfaces of the nuts of the bolts (706). The screw rods of the bolts (706) pass through the adjusting long grooves (703) and are screwed with the screw holes (705).

2. The paper pressing device with limit function for saddle stitcher according to claim 1, characterized in that, Smooth plates (708) are arranged on the opposite side surfaces of the two limiting plates (701). Insertion portions (709) are formed on the side surfaces of the smooth plates (708) facing the limiting plates (701). Insertion grooves (710) are formed on the side surfaces of the limiting plates (701) facing the smooth plates (708).

3. The paper pressing device with limit function for saddle stitcher according to claim 1, wherein, The installation grooves (301) include mechanism grooves (3011) formed on both sides of the inner wall of the installation frame (3) and pushing grooves (3012). The pushing grooves (3012) are in an inverted "L" shape and communicate with the mechanism grooves (3011), and one end of the pushing grooves (3012) communicates with the external space on the side surface of the installation frame (3).

4. The paper pressing device with limit function for saddle stitcher according to claim 3, characterized in that, The locking mechanism (5) includes locking blocks (501) arranged on both sides inside the mechanism grooves (3011). Locking arc portions (502) and arc portions (503) are respectively formed at the lower end and the upper end of the opposite side surfaces of the two locking blocks (501). A convex portion (504) is formed between the locking arc portion (502) and the arc portion (503); Locking springs (505) are arranged between the two locking blocks (501) and the mechanism grooves (3011).

5. The paper pressing device with limit function for saddle stitcher according to claim 4, characterized in that, Positioning blocks (302) are further arranged at the bottom ends of the mechanism grooves (3011). Positioning grooves (402) matching the positioning blocks (302) are formed on the support rods (401).

6. The paper pressing device with limit function for saddle stitcher according to claim 5, wherein The lifting mechanism (6) includes a telescopic cylinder (601) installed on the upper side of the protection frame (2). The lower side of the telescopic cylinder (601) has a telescopic rod (602), and the telescopic rod (602) penetrates through the protection frame (2) and is fixedly connected to the installation frame (3).

7. The paper pressing device with limit function for saddle stitcher according to claim 6, characterized in that Two slots (203) are formed on both sides of the protection frame (2), and two limiting rods (204) are fixedly installed in the slots (203); Two movable plates (303) are provided on both sides of the installation frame (3). Through holes are formed on the movable plates (303), and the movable plates (303) are slidably arranged on the limiting rods (204) by means of the through holes.

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