A cross creaser

Abstract

The utility model relates to a kind of cross creasing machine, it includes base, bracket is installed on the base, bracket is installed on the three-axis cylinder, the output end of the three-axis cylinder is connected with forming die, the air inlet of the three-axis cylinder is connected with solenoid valve;Rotary platform located just below the forming die is installed on the base, and the rotary platform is drivingly connected with stepper motor;The stepper motor and the solenoid valve are electrically connected with PLC controller respectively.The utility model has the effect of creasing high accuracy, no scratch, efficient stability, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of packaging box processing technology, and in particular to a cross-folding machine. Background Technology

[0002] In packaging, lining processing, and other fields, cross-crease processing is a common procedure. Its precision and efficiency directly affect the product's molding quality and production schedule, thus requiring specialized equipment to achieve stable and reliable cross-crease processing. Currently, cross-crease processing largely relies on manual operation or complex general-purpose equipment. Manual operation suffers from problems such as non-perpendicular crease angles, large positional deviations, and poor consistency within batches, while also exhibiting low processing efficiency and high labor intensity. While general-purpose equipment can improve automation to some extent, it is often bulky, complex in structure, and cumbersome to operate, making it difficult to adapt to the processing needs of small-scale, specialized scenarios. Furthermore, it suffers from defects such as easy workpiece scratches during the crease process and insufficient equipment operational stability, failing to meet the requirements of high-precision, high-efficiency, and easy-to-operate cross-crease processing. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a cross-folding machine that features high-precision folding, no scratches, high efficiency and stability, and convenient operation.

[0004] The above-mentioned utility model objective is achieved through the following technical solution:

[0005] A cross-folding machine includes a base, a bracket mounted on the base, a three-axis cylinder mounted on the bracket, a forming mold connected to the output end of the three-axis cylinder, and a solenoid valve connected to the air inlet of the three-axis cylinder.

[0006] The base is equipped with a rotating platform located directly below the molding die, and the rotating platform is connected to a stepper motor.

[0007] Both the stepper motor and the solenoid valve are electrically connected to the PLC controller.

[0008] Through the above technical solution, the integrated design of a three-axis cylinder, a rotary platform, a stepper motor, and a PLC controller achieves integrated and coordinated control of the crease forming and rotation processes. The PLC controller precisely coordinates the timing of the cylinder's lifting and lowering of the crease and the platform's rotation, ensuring high-precision crease forming (vertical angle and accurate position) while improving processing efficiency through process integration and automated control. Simultaneously, the structured cooperation of the core components ensures stable and reliable overall equipment operation, balancing the compactness and ease of operation of a small, specialized machine, thus improving the quality and automation level of crease processing.

[0009] As a further technical solution of this utility model: the rotating platform includes a support base and a rotating worktable; the support base is fixedly installed at the center of the base; the rotating worktable is installed on the support base through bearings, a lower mold base is provided on the rotating worktable, and the rotating worktable is coaxially connected to the output shaft of the stepper motor.

[0010] Through the above technical solution, the support base provides a stable and fixed foundation for the rotary table, the bearing connection reduces rotational friction, and the coaxial connection with the output shaft of the stepper motor ensures that the rotary table rotates smoothly and with precise angles, and improves the perpendicularity of the cross crease direction.

[0011] As a further technical solution of this utility model: the lower mold base is provided with a forming groove that matches the forming mold.

[0012] Through the above technical solution, the forming groove of the lower mold base matches the forming mold to form a concave-convex mating structure, which can accurately position the workpiece, avoid workpiece displacement during crease formation, ensure the consistency of crease position of workpieces in the same batch, and improve the crease forming quality.

[0013] As a further technical solution of this utility model: the PLC controller is also connected to a start pedal.

[0014] Through the above technical solutions, the start pedal provides the equipment with a convenient manual triggering structure that is adapted to the workbench scenario. Its pedal form allows the operator to directly press and start the machine with natural hand movements after placing the workpiece, forming a smooth operation with the workpiece positioning process. At the same time, the mechanical structure design of the pedal (such as moderate pressing stroke and anti-accidental touch protrusions) can reduce accidental triggering in non-operational states. While simplifying the human-machine interaction steps, it improves the comfort of operation and the safety of the processing process, thereby improving the overall processing efficiency.

[0015] As a further technical solution of this utility model: the triaxial cylinder includes a piston rod and two guide rods, the two guide rods being parallel and symmetrically distributed on both sides of the piston rod.

[0016] With the above technical solution, the two guide rods are parallel and symmetrically distributed with the piston rod, which can counteract the lateral force when the forming mold is raised and lowered, restrict the piston rod to move only in the vertical direction, avoid crease misalignment or workpiece scratches caused by mold tilting, and ensure crease accuracy.

[0017] As a further technical solution of this utility model: the piston rod and the two guide rods are connected to a mounting plate at their ends, and the lower surface of the mounting plate is fixedly connected to the molding die.

[0018] Through the above technical solution, the piston rod and guide rod are connected to the mounting plate and then the forming mold is fixed, so that the mold is evenly distributed with force, avoiding mold deformation caused by single point of force, and further improving the stability of creases and the service life of equipment.

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. This utility model discloses a cross-folding machine, which achieves integrated automated processing of folding and forming processes through the structured integration and coordinated control of a three-axis cylinder, a rotary platform, a stepper motor and a PLC controller; it ensures high precision of cross-folding by precisely coordinating the action sequence through the PLC controller, and improves processing efficiency and ensures stable operation by the compact cooperation of core components, thus meeting the high-efficiency processing needs of small special equipment.

[0021] 2. This utility model discloses a cross-folding machine, which achieves a high-quality forming effect with vertical folding direction, consistent position and no scratches by means of a stable support structure of a rotating platform, precise matching of forming groove and mold and symmetrical guiding design of three-axis cylinder.

[0022] 3. This utility model discloses a cross-folding machine, which achieves high efficiency in human-machine interaction and safety in the processing process through the convenient triggering design of the start pedal and the anti-accidental touch feature, and is suitable for diverse operation needs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a cross-folding machine according to the present invention.

[0024] Figure 2 This is a front view of a cross-folding machine according to the present invention.

[0025] Figure 3 This is the electrical schematic diagram of a cross-folding machine according to this utility model.

[0026] Reference numerals in the attached drawings: 1. Base; 2. Bracket; 3. Three-axis cylinder; 4. Molding mold; 5. Rotary platform; 51. Support base; 52. Rotary worktable; 521. Lower mold base; 5211. Molding groove; 6. Stepper motor; 7. Solenoid valve; 8. PLC controller; 9. Start pedal; 10. Driver. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Example 1:

[0031] Reference Figure 1 and Figure 2 This utility model discloses a cross-folding machine with an overall length of 440cm, width of 280cm, and height of 1210cm. It is a small and special cross-folding machine, which includes a base 1 made of processed aluminum plate. A bracket 2 is installed on the base 1. The bracket 2 adopts a gantry structure. Both ends of the bracket 2 are fixedly installed on the base 1, and its crossbeam spans above the base 1 to provide stable support for the upper structure of the equipment.

[0032] Reference Figure 1 A three-axis cylinder 3 is mounted on the crossbeam of the bracket 2. The three-axis cylinder 3 includes a piston rod 31 and two guide rods 32. The two guide rods 32 are parallel and symmetrically distributed on both sides of the piston rod 31. The piston rod 31 and the two guide rods 32 are connected to a mounting plate 33 at their ends. The lower surface of the mounting plate 33 is fixedly connected to the forming mold 4. The air inlet of the three-axis cylinder 3 is connected to a solenoid valve 7. The other end of the solenoid valve 7 is connected to an air passage that provides a 0.6-0.8MPa compressed air source.

[0033] Reference Figure 1A rotating platform 5 located directly below the forming mold 4 is fixedly installed on the base 1 by bolts. The rotating platform 5 includes a support base 51 and a rotating worktable 52. The support base 51 is an "I"-shaped square frame structure, which is welded from a square base plate and two symmetrical vertical plates. The rotating worktable 52 is a square flat plate (fitted to the shape of the workpiece to be processed). A cylindrical rotating shaft extends downward from the center of its bottom surface. The rotating shaft is embedded in the inner ring of the bearing of the support base 51 by interference fit, so as to realize flexible rotation around the vertical axis.

[0034] Reference Figure 1 The upper surface of the rotary worktable 52 is fixed with a lower mold base 521 by hexagonal screws. The upper surface of the lower mold base 521 has a forming groove 5211 (cross-shaped) that matches the forming mold 4. The two grooves are perpendicular to each other and their intersection is located at the center. The groove width is adapted to the thickness of the crease protrusion of the forming mold 4, and the groove depth is set according to the workpiece requirements (e.g., 1-3mm). The edges of the groove opening are rounded to avoid scratching the workpiece. A connecting shaft extends downward from the center of the bottom surface of the rotary worktable 52 and is coaxially connected to the output shaft of the stepper motor 6 through a flexible coupling. The stepper motor 6 is horizontally fixed to the lower surface of the base 1 through a motor mount (with shock-absorbing pads). Its signal input terminal is connected to the driver 10 through a wire. The driver 10 is fixed to the mounting plate on the side of the base 1 by screws.

[0035] Reference Figure 3 The 220V AC power is connected to a 24V switching power supply. After voltage conversion, it provides a 24V DC operating voltage for the PLC controller 8, solenoid valve 7, and driver 10. The start pedal 9 serves as a human-machine interface input component, transmitting a start trigger signal to the PLC controller 8. After receiving the signal, the PLC controller 8 synchronously outputs two control signals: one acts on the solenoid valve 7, controlling its valve core to switch direction to drive the extension and retraction of the three-axis cylinder 3; the other sends a pulse control signal to the driver 10. After being amplified by the driver 10, the signal drives the stepper motor 6 to rotate, thereby driving the rotary table 52 to complete the angle rotation action, realizing the coordinated control of the equipment processing flow by the electrical system.

[0036] The working process of this utility model is as follows:

[0037] Equipment preparation: Connect to a 220V AC power supply and a 0.6-0.8MPa compressed air source to ensure stable power and air supply for the equipment.

[0038] Workpiece positioning: The operator places the lining to be processed into the positioning position of the lower mold base 521 on the rotary worktable 52, so that the lining fits into the forming groove 5211 on the lower mold base 521, thus completing the workpiece positioning.

[0039] Start-up trigger: The operator presses the start pedal 9, and the start pedal 9 sends a trigger signal to the PLC controller 8.

[0040] First crease: After receiving the signal, the PLC controller 8 controls the solenoid valve 7 to operate. The solenoid valve 7 drives the piston rod 31 and guide rod 32 of the three-axis cylinder 3 to extend, which drives the mounting plate 33 and the forming mold 4 to descend. The forming mold 4 cooperates with the forming groove 5211 of the lower mold base 521 to complete the first crease on the workpiece (such as in the X-axis direction).

[0041] Platform rotation: After the first crease is completed, the PLC controller 8 controls the three-axis cylinder 3 to reset (piston rod 31 and guide rod 32 retract, forming mold 4 rises), and at the same time controls the driver 10 to drive the stepper motor 6 to run. The stepper motor 6 drives the rotary table 52 to rotate 90 degrees around the support base 51, so that the direction of the second crease of the workpiece (such as the Y-axis direction) is aligned with the forming mold 4.

[0042] Second start trigger: The operator observes the alignment status of the workpiece after rotation, and after confirming that there is no error, presses the start pedal 9 again to send a second trigger signal to the PLC controller 8.

[0043] Second crease: After receiving the signal, the PLC controller 8 controls the solenoid valve 7 to operate again, driving the three-axis cylinder 3 to lower the forming mold 4, which cooperates with the forming groove 5211 to complete the second crease (such as in the Y-axis direction), forming a cross crease.

[0044] Equipment reset: After the second crease is completed, the PLC controller 8 controls the three-axis cylinder 3 to reset, the forming mold 4 returns to the initial position, and the entire cross crease processing process ends.

[0045] The implementation principle of this utility model is as follows: This cross-crease machine achieves efficient and precise processing through the cooperation of three major systems: mechanical structure coordination, pneumatic and electrical control logic, and operational stability assurance. First, the two guide rods 32 of the three-axis cylinder 3 are symmetrically distributed on both sides of the piston rod 31 to form an anti-eccentric load structure, ensuring that the vertical movement trajectory accuracy of the forming mold 4 is ≤0.05mm. At the same time, the mounting plate 33, which is connected to the end of the piston rod 31 and the guide rod 32, ensures that the load on the mold is evenly distributed, avoiding deformation due to single-point force. The forming groove 5211 of the lower mold base 521 maintains a clearance of 0.5±0.1mm with the forming mold 4, so that the crease force is accurately applied to the fiber layer of the workpiece to achieve a "scratch-free" effect. Second, after receiving the start pedal signal from the pneumatic and electrical control logic, the PLC controller 8 synchronously outputs two commands according to the preset program: one sends a pneumatic circuit on / off signal to the solenoid valve 7 to precisely control the lifting and lowering sequence of the three-axis cylinder 3; the other outputs a pulse signal to the stepper motor 6 to drive the rotating platform 5 to complete a precise positioning of 90°±0.3° to achieve the cross-crease turning direction. Meanwhile, operational stability is ensured by the rigid structure of the rotating platform 5: the support base 51 supports the rotating worktable 52 through bearings to eliminate radial sway, and the output shaft of the stepper motor 6 is coaxially and directly connected to the rotating worktable 52 to avoid transmission errors and reduce the deviation of the crease position during continuous operation of the equipment. The synergistic effect of each system ultimately achieves the core advantages of high crease precision, zero surface damage, and long-term stable operation.

[0046] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cross-stitching machine, comprising a base (1), characterized in that, A bracket (2) is installed on the base (1), a three-axis cylinder (3) is installed on the bracket (2), the output end of the three-axis cylinder (3) is connected to a molding die (4), and the air inlet of the three-axis cylinder (3) is connected to a solenoid valve (7). The base (1) is equipped with a rotating platform (5) located directly below the molding die (4), and the rotating platform (5) is connected to a stepper motor (6) for transmission. Both the stepper motor (6) and the solenoid valve (7) are electrically connected to the PLC controller (8).

2. The cross-stitching machine according to claim 1, characterized in that, The rotating platform (5) includes a support base (51) and a rotating worktable (52); The support base (51) is fixedly installed at the center of the base (1); The rotary worktable (52) is mounted on the support base (51) via bearings. A lower mold base (521) is provided on the rotary worktable (52). The rotary worktable (52) is coaxially connected to the output shaft of the stepper motor (6).

3. A cross-stitching machine according to claim 2, characterized in that, The lower mold base (521) is provided with a forming groove (5211) that matches the forming mold (4).

4. A cross-folding machine according to claim 1, characterized in that, The PLC controller (8) is also connected to a start pedal (9).

5. A cross-stitching machine according to claim 1, characterized in that, The triaxial cylinder (3) includes a piston rod (31) and two guide rods (32), which are parallel and symmetrically distributed on both sides of the piston rod (31).

6. A cross-stitching machine according to claim 5, characterized in that, The piston rod (31) and the two guide rods (32) are connected to a mounting plate (33) at their ends, and the lower surface of the mounting plate (33) is fixedly connected to the molding die (4).

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