A paperboard creasing machine with a limiting mechanism

Abstract

The utility model discloses a paperboard indentation machine with limiting mechanism relates to paperboard indentation machine technical field, including work rest, the both sides of work rest's bottom top extension has the conveying platform, and the midpoint of conveying platform top rotatory installation has the rotating shaft, and the outside of rotating shaft is connected with a plurality of sets of paperboard indentation ware of sleeve joint. The utility model discloses, when paperboard indentation machine is in use, and paperboard indentation ware is connected through the meshing between the inner tooth ring and rotating shaft, makes paperboard indentation ware and rotating shaft synchronous rotation, and paperboard indentation ware can move in the positioning pin round hole of rotating shaft surface through the positioning pin simultaneously, and the setting of positioning pin not only can be fixed in position to paperboard indentation ware, prevents paperboard indentation ware from deviating, can also adjust according to the indentation interval of paperboard, and this design effectively limits paperboard indentation ware, guarantees the indentation accuracy of paper, makes the shape of paperboard after folding regular, is favorable to subsequent assembly.

Description

Technical Field

[0001] This utility model relates to the field of cardboard creasing machine technology, specifically a cardboard creasing machine with a limiting mechanism. Background Technology

[0002] A cardboard creasing machine is mainly used to press creases into cardboard, facilitating subsequent folding and shaping. It can precisely creasing cardboard of various thicknesses, ensuring accurate angles and neat lines during folding, thus improving the aesthetics and practicality of cardboard products. Widely used in the packaging industry, such as in the production of cartons and boxes, it can improve production efficiency, reduce errors from manual folding, and is an important piece of equipment for achieving standardized and regulated production in cardboard processing.

[0003] The existing Chinese utility model patent with publication number CN219276844U discloses a cardboard creasing machine with a limiting mechanism. This cardboard creasing machine includes a processing table, a control box, a rotating horizontal shaft, and a creasing disc. The control box is mounted on the side surface of the processing table, and the rotating horizontal shaft is rotatably connected to the processing table and the control box. The creasing disc is sleeved on the surface of the rotating horizontal shaft. A first bearing is fitted into the inner wall of the processing table, and a bidirectional lead screw is connected through the inside of the first bearing. A handwheel is connected to the end of the bidirectional lead screw. A first limiting plate and a second limiting plate are provided on the upper surface of the processing table. In this utility model, rotating the handwheel can drive the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw can drive the first connecting block to move laterally through a threaded hole. The lateral movement of the first connecting block can drive the first and second limiting plates to move in opposite directions, thus adjusting the distance between the first and second limiting plates, facilitating limiting when creasing cardboard of different sizes.

[0004] Currently, cardboard creasing machines with limiting mechanisms still have the following problems:

[0005] Because cardboard creasing machines have been used for a long time or are very strong, the parts and structures are prone to wear and tear. This can cause the cardboard creasing machine to shift or misalign when creasing paper. This not only affects the accuracy of paper folding and packaging, but also causes inconsistent creasing depth. If the creasing is too shallow, the paper will not be easy to fold, and if the creasing is too deep, the cardboard will not be strong enough and will be damaged. Utility Model Content

[0006] The purpose of this utility model is to provide a cardboard creasing machine with a limiting mechanism to solve the problems of inconsistent creasing depth and creasing misalignment in cardboard creasing machines mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a cardboard creasing machine with a limiting mechanism, including a work frame, a conveying platform extending from the bottom upper sides of the work frame, a rotating shaft rotatably mounted above the midpoint of the conveying platform, and multiple sets of cardboard creasing devices sleeved on the outside of the rotating shaft. Each cardboard creasing device includes an internal toothed ring, and side rings inserted into the rotating shaft are welded to the two sides of the cardboard creasing device. A positioning pin inserted into the upper part of the rotating shaft is installed through the side rings. Several sets of rangefinders are provided on the two sides of the cardboard creasing device.

[0009] Both ends of the rotating shaft are equipped with shaft limiting devices. The shaft limiting device includes a connecting ring located in the lower middle part. The connecting ring is movably connected to a cylinder via a push rod at the top. A signal receiver is fixedly installed on one side of the cylinder. Adjusting rods are movably arranged on both sides of the connecting ring.

[0010] Preferably, a collar is installed on the side of the rotating shaft near the end point, and the surface of the rotating shaft is gear-shaped. Marking lines are installed at intervals on the surface of the rotating shaft, and a positioning pin hole is installed on one side of the marking lines on the surface of the rotating shaft.

[0011] Preferably, the rotating shaft is connected to the internal gear ring inside the cardboard creaser via a surface gear, and the positioning pin is inserted into the round hole of the positioning pin, and the cardboard creaser is installed in an upper and lower corresponding manner.

[0012] Preferably, the connecting ring has a circular hole inside, and the rotating shaft passes through the inside of the circular hole and is rotatably connected to the connecting ring. A connecting block is fixedly installed at the top midpoint of the connecting ring, the connecting block is connected to the bottom of the push rod, and the axis limiting device is located on one side inside the work frame.

[0013] Preferably, the two sides of the axis limiting device are fixedly connected to side blocks, and the adjusting rod is inserted inside the side blocks, and the two ends of the adjusting rod are connected to the two sides inside the axis limiting device.

[0014] Preferably, the conveying platform is supported by a support frame below, and a control device is fixedly installed on the outer side of the work frame.

[0015] Preferably, a movable plate is provided in the middle of the conveying platform, and the cardboard creasing device below is located between the movable plates inside the conveying platform.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When the cardboard creasing machine is in use, the cardboard creasing device is connected to the rotating shaft through the meshing of the internal gear ring, so that the cardboard creasing device and the rotating shaft rotate synchronously. At the same time, the cardboard creasing device can move in the round hole of the positioning pin on the surface of the rotating shaft through the positioning pin. The setting of the positioning pin can not only fix the position of the cardboard creasing device and prevent the cardboard creasing device from shifting, but also adjust it according to the creasing spacing of the cardboard. This design effectively limits the cardboard creasing device, ensures the creasing accuracy of the paper, and makes the cardboard neat after folding, which is conducive to subsequent assembly.

[0018] 2. When the cardboard creasing machine is in use, a distance measuring device is installed on the side of the cardboard creasing device. The distance measuring device detects the distance between the cardboard creasing device and the paper. At the same time, the rotating shaft pushes the push rod through the cylinder to adjust the height position, ensuring that the creasing depth of the cardboard creasing device on the paper is consistent. This can avoid paper damage caused by inconsistent creasing force and ensure the quality of mass production of paper. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the cardboard creasing device of this utility model;

[0023] Figure 3 This is a schematic diagram of the surface structure of the rotating shaft of this utility model;

[0024] Figure 4 This is a schematic diagram of the side structure of the rotating shaft of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the axis limiting device of this utility model;

[0026] In the picture:

[0027] 1. Work frame; 2. Conveying platform; 3. Support frame; 4. Control device; 5. Cardboard creasing device; 51. Internal gear ring; 52. Side ring; 53. Positioning pin; 54. Rangefinder; 6. Rotating shaft; 61. Collar; 62. Marking line; 63. Positioning pin hole; 7. Shaft limiting device; 71. Connecting ring; 72. Connecting block; 73. Push rod; 74. Cylinder; 75. Signal receiver; 76. Side block; 77. Adjusting rod. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] Please see Figures 1-5 A cardboard creasing machine with a limiting mechanism includes a work frame 1, a conveying platform 2 extending from both sides above the bottom of the work frame 1, a support frame 3 supporting the conveying platform 2 below, and a control device 4 fixedly installed on the outer side of the work frame 1.

[0030] For details, please refer to the following: Figure 2 As shown, multiple sets of cardboard creasing devices 5 are sleeved on the outside of the rotating shaft 6. Each cardboard creasing device 5 includes an internal toothed ring 51, and side rings 52 inserted into the inside of the rotating shaft 6 are welded to the two sides of the cardboard creasing device 5. A positioning pin 53 inserted into the upper part of the rotating shaft 6 is installed through the side rings 52. Several sets of rangefinders 54 are provided on the two sides of the cardboard creasing device 5.

[0031] In this embodiment, a movable plate is provided in the middle of the conveying platform 2, and the cardboard creasing device 5 below is located between the movable plates inside the conveying platform 2. The rotating shaft 6 is connected to the internal gear ring 51 inside the cardboard creasing device 5 through the gear on the surface, and the positioning pin 53 is inserted into the inside of the positioning pin round hole 63. The cardboard creasing device 5 is installed in a vertically corresponding manner.

[0032] The cardboard creasing machine of this utility model with a limiting mechanism has a cardboard creasing device 5 connected to a rotating shaft 6 by an internal toothed ring 51 and a positioning pin 53 for position limitation. This not only allows the devices to rotate synchronously, but also prevents the devices from deviating during paper creasing, ensuring precise paper creasing position. Furthermore, the positioning pin 53 can be moved to adjust the distance between the cardboard creasing devices 5, allowing the cardboard creasing devices 5 to be flexibly adjusted according to the paper creasing distance.

[0033] For details, please refer to the following: Figure 3As shown, a rotating shaft 6 is rotatably mounted above the midpoint of the conveying platform 2. A collar 61 is mounted on the side of the rotating shaft 6 near the end point. The surface of the rotating shaft 6 is gear-shaped. Marking lines 62 are installed at intervals on the surface of the rotating shaft 6. A positioning pin hole 63 is installed on one side of the marking line 62 on the surface of the rotating shaft 6.

[0034] The present invention relates to a cardboard creasing machine with a limiting mechanism. The rotating shaft 6 drives the cardboard creasing device 5 to rotate and creasing the paper. At the same time, the spacing of the cardboard creasing device 5 can be adjusted through the positioning pin hole 63 to adjust the distance of the creasing for different types of paper. The marking line 62 helps the cardboard creasing device 5 to accurately position itself during adjustment, ensuring the accuracy of the creasing.

[0035] For details, please refer to the following: Figure 4 and Figure 5 As shown, a shaft limiting device 7 is installed at both ends of the rotating shaft 6. The shaft limiting device 7 includes a connecting ring 71 located in the lower middle part. The connecting ring 71 is movably connected to the cylinder 74 via a push rod 73 at the top. A signal receiver 75 is fixedly installed on one side of the cylinder 74. Adjusting rods 77 are movably arranged on both sides of the connecting ring 71.

[0036] In this embodiment, a circular hole is provided inside the connecting ring 71, and the rotating shaft 6 is inserted into the inside of the circular hole and rotatably connected to the connecting ring 71. A connecting block 72 is fixedly installed at the top midpoint of the connecting ring 71. The connecting block 72 is connected to the bottom of the push rod 73. The shaft limiting device 7 is located inside one side of the work frame 1. Side blocks 76 are fixedly connected to both sides of the shaft limiting device 7. The adjusting rod 77 is inserted into the inside of the side blocks 76, and the two ends of the adjusting rod 77 are connected to the inside two sides of the shaft limiting device 7.

[0037] This utility model discloses a cardboard creasing machine with a limiting mechanism. The cylinder 74 receives the test signal from the rangefinder 54 through the signal receiver 75 and extends or retracts the push rod 73 below. The push rod 73 drives the connecting ring 71 to adjust the height, causing the rotating shaft 6 to shift. This ensures that the rotating shaft 6 always maintains the same distance from the paper when rotating, which can effectively control the creasing depth of the cardboard creasing machine 5 on the cardboard, limit the depth of the cardboard, ensure that the creasing depth of the paper is consistent, and prevent damage caused by uneven creasing depth.

[0038] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A cardboard creasing machine with a limiting mechanism, comprising a work frame (1), characterized in that: The bottom of the work frame (1) has two sides of a conveying platform (2) extending from it. A rotating shaft (6) is rotatably mounted above the midpoint of the conveying platform (2). Multiple cardboard creasing devices (5) are sleeved on the outside of the rotating shaft (6). Each cardboard creasing device (5) includes an internal toothed ring (51) and side rings (52) inserted into the rotating shaft (6) are welded to the two sides of the cardboard creasing device (5). A positioning pin (53) inserted into the upper part of the rotating shaft (6) is installed through the side rings (52). Several rangefinders (54) are provided on the two sides of the cardboard creasing device (5). Both ends of the rotating shaft (6) are equipped with a limiting shaft device (7). The limiting shaft device (7) includes a connecting ring (71) provided in the middle and lower part. The connecting ring (71) is movably connected to the cylinder (74) through the push rod (73) at the top. A signal receiver (75) is fixedly installed on one side of the cylinder (74). Adjusting rods (77) are movably provided on both sides of the connecting ring (71).

2. A cardboard creasing machine with a limiting mechanism according to claim 1, characterized in that: A collar (61) is installed on the side of the rotating shaft (6) near the end point, and the surface of the rotating shaft (6) is gear-shaped. Marking lines (62) are installed at intervals on the surface of the rotating shaft (6), and a positioning pin hole (63) is installed on one side of the marking line (62) on the surface of the rotating shaft (6).

3. A cardboard creasing machine with a limiting mechanism according to claim 1, characterized in that: The rotating shaft (6) is connected to the internal gear ring (51) inside the cardboard creaser (5) by the gear on the surface and the internal gear ring (51) inside the cardboard creaser (5), and the positioning pin (53) is inserted into the inside of the positioning pin hole (63). The cardboard creaser (5) is installed in a vertically corresponding manner.

4. A cardboard creasing machine with a limiting mechanism according to claim 1, characterized in that: The connecting ring (71) has a circular hole inside, and the rotating shaft (6) is inserted into the inside of the circular hole and rotates to connect with the connecting ring (71). A connecting block (72) is fixedly installed at the top midpoint of the connecting ring (71). The connecting block (72) is connected to the bottom of the push rod (73), and the shaft limiting device (7) is located on one side inside the work frame (1).

5. A cardboard creasing machine with a limiting mechanism according to claim 4, characterized in that: The limiting axis device (7) has side blocks (76) fixedly connected to both sides, and the adjusting rod (77) is inserted inside the side block (76), and the two ends of the adjusting rod (77) are connected to the two sides inside the limiting axis device (7).

6. A cardboard creasing machine with a limiting mechanism according to claim 1, characterized in that: The conveying platform (2) is supported by a support frame (3) below, and a control device (4) is fixedly installed on the outer side of the work frame (1).

7. A cardboard creasing machine with a limiting mechanism according to claim 1, characterized in that: The conveying platform (2) has a movable plate in the middle, and the cardboard creasing device (5) below is located between the movable plates inside the conveying platform (2).

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