A CNC punching machine

Abstract

This utility model discloses a CNC punching machine, relating to the field of punching machine technology. The utility model includes a frame, a platform, and a crossbeam assembly. The crossbeam assembly is equipped with an x-axis module and a punching head. The punching head is connected to the crossbeam assembly via the x-axis module, giving the punching head a degree of freedom of movement along the x-direction. The platform is mounted on the frame, and the crossbeam assembly is movably mounted on the upper side of the platform, giving the crossbeam assembly a degree of freedom of movement along the y-direction. This utility model, with its movable crossbeam assembly cooperating with the punching head, can reduce the number of fabric feeds during punching, thereby improving the production efficiency of the punching process.

Description

Technical Field

[0001] This utility model relates to the field of punching machine technology, and specifically provides a CNC punching machine. Background Technology

[0002] In the manufacturing of outdoor products, home décor, and industrial filter media, large-area flexible fabrics (such as PVC coated fabric, composite leather rolls, and synthetic fiber filter cloth) supplied in roll form are frequently required. These rolls are characterized by their wide width, soft texture, and easy deformation. Their processing needs to be adapted to automated production lines to achieve efficient mass production. Automated punching is one of the core process steps, requiring the precise formation of a perforation array or pattern on the surface of the roll that meets design requirements to satisfy the product's functional needs such as breathability, weight reduction, and assembly positioning. Currently, the industry commonly uses single-beam component punching machines for automated punching of roll-shaped flexible fabrics. The basic processing flow of this equipment is as follows: First, the roll-shaped fabric is pulled to the punching station by the feeding mechanism, where the pressing component temporarily fixes the fabric. Then, the single punch head mounted on the beam component moves along the length of the beam component to a preset target coordinate, initiating the punching action to process a single hole or a group of holes. After punching, the pressing component is released, and the feeding mechanism drives the roll to move along the feed direction by a preset step distance (the step distance value is determined based on the hole array spacing or pattern size). After the roll is repositioned and fixed, the punch head moves again along the beam component to the next target coordinate, repeating the punching operation to achieve continuous punching of the roll-shaped fabric. However, this processing flow revealed numerous problems when adapting to the characteristics of roll-shaped flexible fabrics. Among these, the fabric fixing and feeding stages were the core pain points affecting processing stability and efficiency. On the one hand, the roll material is soft and has a certain degree of elasticity. During the feeding process, uneven tension can easily cause the fabric to stretch, shift, or wrinkle, requiring high-precision pressing and positioning components for correction, increasing the complexity of the equipment structure and the difficulty of debugging. On the other hand, a more critical issue lies in the efficiency loss within the processing cycle. In actual production, the punching action itself is extremely short (usually only 0.1-0.3 seconds / time). After the punching head completes one punching operation, it needs to reset along the crossbeam assembly or move to the initial standby position, waiting for the feeding mechanism to complete the next step feed and re-fixing of the roll material. During this period, the single punching head is completely idle and cannot perform any effective processing operations, resulting in significant "waiting waste."

[0003] Further analysis reveals that a complete processing cycle of a traditional single-beam punching machine consists of several steps: "punching head movement and positioning → punching → material release → coil feeding → material fixing → punching head reset". Within this cycle, a significant amount of non-productive time is spent, with "fabric movement waiting" being a periodic and recurring efficiency loss. Regardless of whether the processed pattern is a simple hole array or a complex irregular hole, as long as a single-beam single-head structure is used, after processing each set of holes, it is necessary to wait for the coil to be fed into position before starting the next round of processing. This waiting time is unrelated to the complexity of the processed pattern; even when processing the most basic equidistant hole array, it cannot be avoided by optimizing the program or adjusting parameters. This high proportion of fixed non-productive time severely limits the improvement of the theoretical production cycle time of the equipment. Taking the processing of roll material with a width of 2 meters and a step distance of 50 millimeters as an example, the time for a single roll material feeding and positioning is about 2-3 seconds, while the punching head only needs 0.5-1 seconds to complete one span movement and punching. The proportion of non-productive time exceeds 60%. Under long-term operation, the overall processing efficiency of the equipment is low, and the number of punches per unit time is difficult to increase. This makes it impossible to meet the production requirements of "high cycle time and high capacity" in modern high-production workshops, becoming a key bottleneck restricting the capacity release of roll flexible fabric processing production lines. Utility Model Content

[0004] This invention provides a CNC punching machine to solve the problem of low punching efficiency.

[0005] The technical solution of this utility model is as follows: A CNC punching machine includes a frame, a platform, and a crossbeam assembly. The crossbeam assembly is provided with an x-axis module and a punching head. The punching head is connected to the crossbeam assembly through the x-axis module, giving the punching head a degree of freedom of movement in the x-direction. The platform is set on the frame, and the crossbeam assembly is movably set on the upper side of the platform, giving the crossbeam assembly a degree of freedom of movement in the y-direction.

[0006] In this solution, a movable crossbeam assembly is set up, and punching heads are set on the crossbeam assembly. During production, the fabric only needs to be unfolded and laid on the top of the platform. The crossbeam assembly can move along the y-direction, and the punching heads can move along the x-direction. The cooperation between the crossbeam assembly and the punching heads allows the punching range to directly cover the entire platform. The fabric only needs to be fed once, which reduces the time loss caused by feeding the fabric and achieves the effect of improving efficiency.

[0007] Preferably, y-axis modules are provided on both sides of the top of the platform, and the crossbeam assembly shown is connected to the platform through the y-axis modules.

[0008] In this solution, the Y-axis module is placed on the top of the platform. Compared with placing the Y-axis module on the frame, this allows for a more precise positional relationship between the beam assembly and the platform, thereby improving the accuracy between the beam assembly, the punching head, and the fabric, and ultimately enhancing processing precision.

[0009] Preferably, the y-axis module includes a guide section and a transmission section. Connecting seats are respectively provided at both ends of the crossbeam assembly. The connecting seats are slidably connected to the guide section. The connecting seats are provided with a driving mechanism, and the driving mechanism is connected to the transmission section in a transmission manner.

[0010] In this design, the drive mechanism is mounted on the connecting seat of the crossbeam assembly. Compared to mounting the drive mechanism on the platform, this design reduces the transmission distance of power to the crossbeam assembly and avoids deformation of the transmission part caused by long-distance transmission.

[0011] Preferably, the y-axis module includes at least two guide sections.

[0012] In this design, the y-axis module is equipped with two guide sections, which can improve the stability of the crossbeam assembly movement.

[0013] Preferably, the two guide parts are located on both sides of the transmission part.

[0014] In this design, the two guide sections are positioned on both sides of the transmission section, which reduces the eccentric load on the crossbeam assembly and prevents the transmission section from jamming due to eccentric load.

[0015] Preferably, the connecting seats at both ends of the crossbeam assembly are respectively provided with driving mechanisms, and each driving mechanism is connected to the corresponding transmission part.

[0016] In this design, drive mechanisms are installed at both ends of the crossbeam assembly, which can prevent the crossbeam assembly from tilting due to uneven load and also prevent the crossbeam assembly from jamming due to uneven load.

[0017] Preferably, to solve the problem of low punching efficiency, the device includes at least two crossbeam assemblies, each crossbeam assembly being equipped with a punching head.

[0018] In this solution, the various crossbeam components work together to significantly improve punching efficiency and reduce the punching time by several times.

[0019] Preferably, each of the beam assemblies is driven to move by a drive mechanism, and the drive mechanisms of each beam assembly are independent of each other.

[0020] In this design, the independent movement of the crossbeam assemblies can improve the flexibility of the punching method, enabling each crossbeam assembly to form more complex punching patterns.

[0021] Preferably, the punch head is located between the two crossbeam assemblies, or the punch head is located on the outside of the two crossbeam assemblies.

[0022] In this design, positioning the punch head between the two crossbeam assemblies reduces the mating distance between them, allowing the crossbeam assemblies and punch head to work together within a smaller area. This smaller working area increases the flexibility of the two crossbeam assemblies, making them suitable for more complex punching processes. Furthermore, positioning the punch head outside the two crossbeam assemblies facilitates maintenance. Maintenance only requires moving the crossbeam assemblies to the edge of the platform, at which point the punch head is located closer to the platform's outer edge, making repairs easier.

[0023] Preferably, the platform has chamfered or rounded corner structures on both sides in the y-direction.

[0024] In this solution, when processing roll material, the padding paper at the bottom of the roll material needs to move along with the roll material. The chamfered and rounded corner structures of the platform can prevent the padding paper from being cut, making the movement of the padding paper smoother and preventing damage to the padding paper.

[0025] The beneficial effects of this utility model are: This invention features a movable crossbeam assembly that works in conjunction with the punching head. During punching, this reduces the number of fabric feeds, thereby improving the production efficiency of the punching process. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the platform, crossbeam assembly, and punching head of this utility model; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 for Figure 2 Enlarged view of a section at point B in the middle; Figure 5 This is a front view of the platform, beam assembly, and punching head of this utility model; Figure 6 for Figure 5 Enlarged view of a section at point C; Figure 7 This is a left view of the platform, crossbeam assembly, and punching head of this utility model.

[0028] In the above figures, the corresponding reference numerals are as follows: 1. Platform; 2. Frame; 3. Crossbeam assembly; 4. Punching head; 5. Y-axis module; 6. X-axis module; 31. Connecting seat; 32. Drive mechanism; 51. Guide rail; 52. Rack; 53. Slider; 54. Gear. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific embodiments. Example 1

[0030] like Figure 1 As shown in the figure, this embodiment provides a CNC punching machine, including a frame 2, a platform 1, a punching head 4, and a crossbeam assembly 3. The platform 1 is mounted on the frame 2, the crossbeam assembly 3 is slidably disposed on the upper side of the platform 1, and the punching head 4 is slidably disposed on the crossbeam assembly 3. The movement direction of the punching head 4 is the x-direction, the movement direction of the crossbeam assembly 3 is the y-direction, and the movement directions of the punching head 4 and the crossbeam assembly 3 are perpendicular to each other.

[0031] The frame 2 is a frame structure formed by assembling profiles, and the platform 1 is fixedly connected to the frame 2 by fasteners. The platform 1 can be a metal platform 1, a stone platform 1, etc. The platform 1 has a flat top surface, which is used to lay the fabric and backing paper, with the backing paper laid on the bottom of the fabric.

[0032] In use, pull one end of the rolled backing paper onto platform 1 and lay it flat. Then, straighten the rolled fabric and lay it on top of the backing paper. After the backing paper and fabric are laid out, the crossbeam assembly 3 and the punching head 4 work together to punch the fabric. The backing paper can prevent damage to the cutting tool of the punching head 4. At the same time, the backing paper also ejects the waste material after punching upwards, so that the waste material can be carried away by the cutting tool of the punching head 4 and prevent the waste material from falling to the underside of the fabric.

[0033] like Figure 2 and Figure 3 As shown, the crossbeam assembly 3 is movably mounted on the upper side of the platform 1. The y-axis module 5 can be mounted on the platform 1 or the frame 2. The crossbeam assembly 3 is connected to the y-axis module 5, and the crossbeam assembly 3 is slidably mounted on the upper side of the platform 1 through the y-axis module 5.

[0034] The y-axis module 5 can be mounted on the frame 2 or on the platform 1. Since the movement of the crossbeam assembly 3 is used to change the position of the punch head 4 and the fabric laid on the platform 1, it is preferable to mount the y-axis module 5 on the platform 1 to make the positional relationship between the crossbeam assembly 3 and the platform 1 more precise.

[0035] like Figure 5 and Figure 6 As shown, y-axis modules 5 are respectively arranged on both sides of platform 1, and connecting seats 31 are respectively arranged at both ends of crossbeam assembly 3. The connecting seats 31 are slidably connected to the y-axis modules 5. Crossbeam assembly 3 and connecting seats 31 can be fixedly connected by fasteners. Crossbeam assembly 3 and connecting seats 31 can be manufactured by casting.

[0036] The y-axis module 5 includes a guide rail slider assembly as a guide part, and a gear rack assembly as a transmission part.

[0037] The guide rail 51 is fixed to the platform 1 by fasteners, the slider 53 is slidably connected to the guide rail 51, and the connecting seat 31 is connected to the slider 53.

[0038] The rack 52 is connected to the platform 1 by fasteners, and the length direction of the rack 52 is parallel to the length direction of the guide rail 51. A drive mechanism 32 is mounted on the connecting seat 31, and the output shaft of the drive mechanism 32 is connected to the gear 54, which meshes with the rack 52. When the drive mechanism 32 is started, the crossbeam assembly 3 can be moved through the engagement of the gear 54 and the rack 52.

[0039] The guide rail slider assembly can be replaced by a structure such as a slide groove slider 53 assembly. For example, slide grooves can be opened on both sides of the platform 1, and the slider 53 can be slidably set in the slide grooves. Alternatively, guide rods can be provided on both sides of the platform 1, and guide holes can be opened in the connecting seat 31, with the guide rods slidably inserted into the guide holes.

[0040] The gear and rack assembly can be replaced by a lead screw and nut assembly. For example, the two ends of the lead screw are connected to the platform 1, the lead screw is parallel to the guide rail 51, the nut assembly is driven by the lead screw, and the nut assembly is rotatably connected to the connecting seat 31. A pulley or gear 54 is connected to the nut assembly, and the drive mechanism 32 is driven by the pulley or gear 54 on the nut assembly via a belt or gear 54. When the drive mechanism 32 is started, the nut assembly moves along the axis of the lead screw, which drives the crossbeam assembly 3 to move.

[0041] The drive mechanism 32 can be a motor, which can rotate in both directions, thereby driving the crossbeam assembly 3 to move back and forth.

[0042] Because the punch head 4 is mounted on the crossbeam assembly 3, and the crossbeam assembly 3 has a large size and weight, in order to avoid uneven load on both ends of the crossbeam assembly 3 and jamming, both connecting seats 31 of the crossbeam assembly 3 are equipped with drive mechanisms 32. The drive mechanisms 32 on both sides work synchronously to ensure that the two connecting seats 31 of the crossbeam assembly 3 are subjected to the same force, thereby improving the stability of the movement of the crossbeam assembly 3.

[0043] like Figure 4As shown, similarly, an x-axis module 6 is installed on the crossbeam assembly 3, and the punching head 4 is connected to the crossbeam assembly 3 through the x-axis module 6. The x-axis module 6 includes a guide rail slider assembly and a gear rack assembly arranged in the x-direction. The guide rail and rack are respectively arranged parallel to the crossbeam assembly 3, and the guide rail and rack are parallel to the length direction of the crossbeam assembly 3. The punching head 4 is connected to the slider, and a motor is installed on the punching head 4. The output shaft of the motor is connected to the gear, and the gear meshes with the rack.

[0044] The CNC punching machine is also equipped with a controller. The drive mechanism 32 on the punching head 4, the crossbeam assembly 3, and the motor on the punching head 4 are electrically connected to the controller. The controller can control the punching head 4 to perform punching work and control the movement of the crossbeam assembly 3 and the punching head 4.

[0045] The controller can be a PLC, a computer, or an industrial computer, etc.

[0046] Guide structures or rounded corner structures are provided on both sides of platform 1 in the y direction, so that the padding paper can slide smoothly onto platform 1, which can avoid creases on the padding paper and also prevent the padding paper from being damaged due to the excessive sharpness of the edge of platform 1. Example 2

[0047] This embodiment two provides a CNC punching machine. Unlike embodiment one, this embodiment two is provided with two crossbeam assemblies 3, and punching heads 4 are respectively provided on the two crossbeam assemblies 3.

[0048] Both crossbeam assemblies 3 are equipped with drive mechanisms 32, and the drive mechanisms 32 on the two crossbeam assemblies 3 move independently, so that the two crossbeam assemblies 3 can move independently of each other.

[0049] like Figure 7 As shown, the punch head 4 can be positioned between the two crossbeam assemblies 3 or on the outside of the two crossbeam assemblies 3.

[0050] For ease of maintenance, it is preferable to position the punch head 4 on the outside of the two crossbeam assemblies 3. Example 3

[0051] This embodiment three provides a CNC punching machine. Unlike embodiment one, the y-axis module 5 includes two guide rail slider assemblies.

[0052] Two guide rail slider assemblies are arranged side by side, with the two guide rails 51 parallel to each other. The sliders 53 on both guide rails 51 are connected to the connecting seat 31. Using two guide rail slider assemblies can distribute pressure and reduce the load on the guide rail slider assemblies, thereby improving the stability of the crossbeam assembly 3's movement.

[0053] The two guide rail slider assemblies can be set on the same side of the rack 52, or they can be set on opposite sides of the rack 52.

[0054] like Figure 3 As shown, in a better implementation, two guide rail slider assemblies are respectively disposed on both sides of the rack 52. First, by distributing the two guide rail slider assemblies on both sides of the rack 52, the off-center load on the connecting seat 31 due to transmission can be reduced. Second, the guide rail 51 can act as a barrier to prevent the fabric from accidentally moving and getting stuck in the rack 52.

Claims

1. A CNC punching machine, characterized in that, The device includes a frame (2), a platform (1), and a crossbeam assembly (3). The crossbeam assembly (3) is equipped with an x-axis module (6) and a punching head (4). The punching head (4) is connected to the crossbeam assembly (3) through the x-axis module (6), so that the punching head (4) has a degree of freedom to move in the x-direction. The platform (1) is set on the frame (2), and the crossbeam assembly (3) is movably set on the upper side of the platform (1). The crossbeam assembly (3) has a degree of freedom to move in the y-direction.

2. The CNC punching machine according to claim 1, characterized in that, The top of the platform (1) is provided with y-axis modules (5) on both sides, and the crossbeam assembly (3) shown is connected to the platform (1) through the y-axis modules (5).

3. A CNC punching machine according to claim 2, characterized in that, The y-axis module (5) includes a guide part and a transmission part. The two ends of the crossbeam assembly (3) are respectively provided with connecting seats (31). The connecting seats (31) are slidably connected to the guide part. The connecting seats (31) are provided with a driving mechanism (32). The driving mechanism (32) is connected to the transmission part in a transmission manner.

4. A CNC punching machine according to claim 3, characterized in that, The y-axis module (5) includes at least two guide sections.

5. A CNC punching machine according to claim 4, characterized in that, The two guide sections are located on both sides of the transmission section.

6. A CNC punching machine according to claim 3, characterized in that, The connecting seats (31) at both ends of the beam assembly (3) are respectively provided with driving mechanisms (32), and each driving mechanism (32) is connected to the corresponding transmission part.

7. A CNC punching machine according to claim 1, characterized in that, It includes at least two crossbeam assemblies (3), each of which is equipped with a punch head (4).

8. A CNC punching machine according to claim 7, characterized in that, Each of the beam assemblies (3) is driven to move by a drive mechanism (32), and the drive mechanisms (32) of each beam assembly (3) are independent of each other.

9. A CNC punching machine according to claim 7, characterized in that, The punching head (4) is located between the two crossbeam assemblies (3), or the punching head (4) is located outside the two crossbeam assemblies (3).

10. A CNC punching machine according to claim 1, characterized in that, The platform (1) has chamfered or rounded corner structures on both sides in the y direction.

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