A color printing packaging bag air hole stamping mechanism

Abstract

The utility model discloses a kind of color printing packaging bag air hole stamping mechanism, it is related to stamping equipment technical field, including base, inherent rear plate on base, rear plate upper end is equipped with stamping cylinder, the output end of stamping cylinder is fixed with connecting plate, the bottom of connecting plate is equipped with annular blade, the below of stamping cylinder is provided with the fixed seat of butt joint with rear plate, the middle part of fixed seat is equipped with blanking hole, the above of fixed seat is provided with opening and closing component, opening and closing component includes left and right two opening and closing plates, the front and rear wall of two opening and closing plates is fixed with spring seat, two opening and closing plates same side adjacent two spring seats are fixed with compression spring, opening and closing plate is right-angled trapezoidal shape, and the side wall of two opening and closing plates far from one end is inclined plane, the above of two opening and closing plates is equipped with bunching plate, and the bottom of bunching plate is the inclined plane compatible with corresponding opening and closing plate inclined plane;Automatic blanking setting can keep production site neat.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a stamping mechanism for ventilation holes in color-printed packaging bags. Background Technology

[0002] The main purpose of leaving ventilation holes in plastic sealable bags is to prevent moisture, mold, and gas accumulation. First, during the packaging process, because air cannot circulate inside the bag, moisture can easily accumulate, causing the packaged goods to become damp. Ventilation holes can effectively balance the air pressure inside and outside the bag, preventing the product from deteriorating due to moisture condensation and microbial growth in a sealed environment. At the same time, it prevents the packaging bag from bulging or breaking due to pressure differences during transportation.

[0003] Existing perforation punching mechanisms typically use simple cylinder-driven punches to punch holes in packaging bags. In practice, it has been found that punching waste often scatters around the equipment, requiring manual cleaning after each punching cycle to prevent it from piling up subsequent bags. Furthermore, color-printed packaging bags are mostly made of flexible film, which is prone to localized wrinkles during transport due to uneven tension and parallelism errors in the conveyor rollers. Wrinkles on the packaging bag during punching can affect the accuracy of the punching position and may even lead to punching deviations, impacting the overall integrity and aesthetics of the packaging bag. Utility Model Content

[0004] To solve the above problems, this utility model proposes a punching mechanism for ventilation holes in color-printed packaging bags, including a base, a rear plate on the base, a punching cylinder mounted on the upper end of the rear plate, a connecting plate fixed to the output end of the punching cylinder, a ring blade mounted on the bottom of the connecting plate, a receiving seat fixed to the rear plate below the punching cylinder, a material drop hole in the middle of the receiving seat, an opening and closing component above the receiving seat, the opening and closing component including two opening and closing plates, spring seats fixed to the front and rear walls of the two opening and closing plates, a compression spring fixed between two adjacent spring seats on the same side of the two opening and closing plates, the opening and closing plates are in the shape of right-angled trapezoids, and the side walls of the two opening and closing plates at the opposite ends are inclined surfaces, a gathering plate is mounted above the two opening and closing plates, the bottom of the gathering plate is an inclined surface adapted to the inclined surface of the corresponding opening and closing plate, a connecting frame extending to the lower part of the receiving seat is fixed to the outer wall of the two gathering plates, the two connecting frames are fixed together by a long plate, and a linear driver with a telescopic end connected to the long plate is mounted on the base.

[0005] Furthermore, a smoothing component for flattening the packaging bag is provided. The smoothing component includes a servo motor installed on the side wall of one of the gathering plates. Lead screws are rotatably connected to the side walls of the two gathering plates that are close to each other. The ends of the two lead screws are fixed together by an assembly block. The lead screw near the servo motor passes through the gathering plate and is connected to the servo motor through a coupling. The helical directions of the two lead screws are set in opposite directions. Guide blocks are connected to the outer sides of the two lead screws. The rear wall of the guide block contacts the front wall of the rear plate. A smoothing plate is fixed to the bottom of the guide block.

[0006] Furthermore, a guide rod is fixed between the two gathering plates, and the guide rod passes through the two guide blocks and is slidably connected to the two guide blocks.

[0007] Furthermore, a positioning strip is fixed to the outer wall of the receiving seat below the gathering plate. When the bottom of the gathering plate contacts the positioning strip, the smoothing piece contacts the packaging bag on the opening and closing plate.

[0008] Furthermore, a perforation is provided in the middle of the long plate, and a receiving frame is provided on the top of the base below the long plate.

[0009] Furthermore, a T-shaped slider is fixed to the bottom of the opening and closing plate, and a T-shaped groove is provided on the top of the receiving seat for the slider to slide.

[0010] The beneficial effects of this utility model are as follows: 1. After being separated by the opening and closing plate, the stamped round waste sheets fall directly into the receiving frame through the perforations in the long plate without manual intervention. The receiving frame facilitates the centralized handling of waste materials and helps maintain a clean production site. The smoothing components effectively smooth out wrinkles on packaging bags.

[0011] 2. Before punching, the smoothing plate moves in the opposite direction along the lead screw under the drive of the servo motor to smooth the surface of the packaging bag, so that the surface of the packaging bag is flat during punching and reduces the punching position deviation caused by wrinkles; the smoothing plate always presses down on the packaging bag during the punching process and can prevent the packaging bag from shifting during the punching process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the connection structure of the central convergence plate.

[0013] The reference numerals in the attached drawings are explained as follows: 1. Base; 2. Rear plate; 3. Stamping cylinder; 4. Connecting plate; 5. Annular blade; 61. Opening and closing plate; 62. Spring seat; 63. Compression spring; 64. Gathering plate; 65. Connecting frame; 66. Long plate; 67. Linear driver; 71. Servo motor; 72. Lead screw; 73. Assembly block; 74. Guide block; 75. Smoothing plate; 8. Receiving seat; 81. Drop hole; 9. Guide rod; 10. Positioning strip; 11. Receiving frame; 12. Slider. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 utility model 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 on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will be further described below with reference to the accompanying drawings: A perforation punching mechanism for color-printed packaging bags, such as Figure 1 As shown, the device includes a base 1, a rear plate 2 on the base 1, a stamping cylinder 3 mounted on the upper end of the rear plate 2, a connecting plate 4 fixed to the output end of the stamping cylinder 3, an annular blade 5 mounted on the bottom of the connecting plate 4, a receiving seat 8 fixed to the rear plate 2 below the stamping cylinder 3, a material discharge hole 81 in the middle of the receiving seat 8, and an opening and closing component above the receiving seat 8. The opening and closing component includes two opening and closing plates 61, left and right, with spring seats 62 fixed to the front and rear walls of both opening and closing plates 61. The two opening and closing plates 61 are on the same side. A compression spring 63 is fixed between two adjacent spring seats 62. The opening and closing plate 61 is in the shape of a right trapezoid, and the side wall of the two opening and closing plates 61 at the opposite end is an inclined surface. A gathering plate 64 is provided above each of the two opening and closing plates 61. The bottom of the gathering plate 64 is an inclined surface that matches the inclined surface of the corresponding opening and closing plate 61. A connecting frame 65 extending to the bottom of the receiving seat 8 is fixed to the outer wall of the two gathering plates 64. The two connecting frames 65 are fixed together by a long plate 66. A linear actuator 67 with a telescopic end connected to the long plate 66 is installed on the base 1.

[0017] like Figure 1 and Figure 2As shown, in this embodiment, a smoothing component for flattening the packaging bag is provided. The smoothing component includes a servo motor 71 installed on the side wall of one of the gathering plates 64. Lead screws 72 are rotatably connected to the adjacent side walls of both gathering plates 64. The ends of the two lead screws 72 are fixed together by an assembly block 73. The lead screw 72 near the servo motor 71 passes through the gathering plate 64 and is connected to the servo motor 71 via a coupling. The helical directions of the two lead screws 72 are opposite. Guide blocks 74 are connected to the outer side of the back plate 2. The rear wall of the guide block 74 contacts the front wall of the back plate 2. A smoothing piece 75 is fixed to the bottom of the guide block 74. A guide rod 9 is also fixed between the two gathering plates 64. The guide rod 9 passes through the two guide blocks 74 and is slidably connected to the two guide blocks 74. A positioning strip 10 is fixed to the outer wall of the receiving seat 8 below the gathering plate 64. When the bottom of the gathering plate 64 contacts the positioning strip 10, the smoothing piece 75 contacts the packaging bag on the opening and closing plate 61.

[0018] like Figure 1 As shown, in this embodiment, a through hole is provided in the middle of the long plate 66, and a receiving frame 11 is provided on the top of the base 1 below the long plate 66; a slider 12 with a T-shaped cross section is fixed at the bottom of the opening and closing plate 61, and a T-shaped groove for the slider 12 to slide is provided on the top of the receiving seat 8.

[0019] The working principle of this utility model is as follows: First, the linear actuator 67 retracts, causing the long plate 66 to descend. The descent of the long plate 66 is transmitted to the gathering plate 64 through the connecting frame 65, causing the gathering plate 64 to gradually approach the opening and closing plate 61. When the inclined surface of the gathering plate 64 contacts the inclined surface of the opening and closing plate 61, as the gathering plate 64 continues to descend, under the limiting and guiding action of the slider 12 and the slide groove, the two opening and closing plates 61 approach each other under the elastic force of the compression spring 63 until they close. At the same time, when the bottom of the gathering plate 64 contacts the positioning strip 10, the straightening strip 75 contacts the middle of the packaging bag on the opening and closing plate 61, pressing down on the packaging bag. The servo motor 71 is started, driving the lead screw 72 to rotate. Since the helical directions of the two lead screws 72 are opposite, when the lead screw 72 rotates, the guide block 74 connected to its outer side moves in the opposite direction along the guide rod 9. The guide block 74 drives the smoothing strips 75 to move in opposite directions. During the movement, the smoothing strips 75 can effectively smooth out the wrinkles on the packaging bag. When the two smoothing strips 75 move to both ends of the packaging bag, the initial smoothing operation of the packaging bag is completed.

[0020] Then, the punching cylinder 3 is activated, and its output end drives the connecting plate 4 and the annular blade 5 downwards. During the downward movement, the annular blade 5 gradually approaches the surface of the packaging bag, completing the punching action. During the punching process, the straightening plate 75 keeps the packaging bag pressed down to prevent it from shifting due to the impact force generated by the downward movement of the cylinder, ensuring the accuracy of the punching position.

[0021] After punching, the punching cylinder 3 drives the annular blade 5 back to its initial position, preparing for the next punching operation. The linear actuator 67 extends, driving the gathering plate 64 and the smoothing component back to their original positions. During the return process, the servo motor 71 continues to operate until the smoothing piece 75 returns to its initial position, preparing for the next round of bag smoothing operations. As the gathering plate 64 gradually detaches from the closing plate 61, the restoring force of the compression spring 63 is gradually released, pushing the two opening and closing plates 61 away from each other, returning to their initial state. The punched round waste pieces fall into the receiving frame 11 through the perforation of the long plate 66 under their own gravity.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A punching mechanism for ventilation holes in color-printed packaging bags, comprising a base (1), a back plate (2) on the base (1), a punching cylinder (3) mounted on the upper end of the back plate (2), a connecting plate (4) fixed to the output end of the punching cylinder (3), and an annular blade (5) mounted on the bottom of the connecting plate (4), characterized in that: Below the stamping cylinder (3) is a receiving seat (8) fixed to the rear plate (2). A material drop hole (81) is opened in the middle of the receiving seat (8). An opening and closing component is provided above the receiving seat (8). The opening and closing component includes two opening and closing plates (61) on the left and right. Spring seats (62) are fixed on the front and rear walls of the two opening and closing plates (61). A compression spring (63) is fixed between two adjacent spring seats (62) on the same side of the two opening and closing plates (61). The opening and closing plates (61) are in the shape of a right trapezoid. Furthermore, the side walls of the two opening and closing plates (61) at opposite ends are inclined surfaces. A gathering plate (64) is provided above each of the two opening and closing plates (61). The bottom of the gathering plate (64) is an inclined surface that matches the inclined surface of the corresponding opening and closing plate (61). A connecting frame (65) extending to the bottom of the receiving seat (8) is fixed on the outer wall of the two gathering plates (64). The two connecting frames (65) are fixed together by a long plate (66). A linear driver (67) with a telescopic end connected to the long plate (66) is installed on the base (1).

2. The air vent punching mechanism for color-printed packaging bags according to claim 1, characterized in that: The packaging bag is provided with a smoothing component, which includes a servo motor (71) installed on the side wall of one of the gathering plates (64). The two gathering plates (64) are rotatably connected to the side walls of the two gathering plates (64). The ends of the two lead screws (72) are fixed together by an assembly block (73). The lead screw (72) near the servo motor (71) passes through the gathering plate (64) and is connected to the servo motor (71) by a coupling. The helical directions of the two lead screws (72) are opposite. The outer side of the two lead screws (72) is connected to a guide block (74). The rear wall of the guide block (74) contacts the front wall of the rear plate (2). A smoothing piece (75) is fixed to the bottom of the guide block (74).

3. The perforation punching mechanism for color-printed packaging bags according to claim 2, characterized in that: A guide rod (9) is also fixed between the two gathering plates (64), the guide rod (9) passes through the two guide blocks (74) and is slidably connected to the two guide blocks (74).

4. The air vent punching mechanism for color-printed packaging bags according to claim 2, characterized in that: The outer wall of the receiving seat (8) is fixed with a positioning strip (10) below the gathering plate (64). When the bottom of the gathering plate (64) contacts the positioning strip (10), the straightening piece (75) contacts the packaging bag on the opening and closing plate (61).

5. The air vent punching mechanism for color-printed packaging bags according to claim 1, characterized in that: The long plate (66) has a perforation in the middle, and the base (1) has a receiving frame (11) at the top below the long plate (66).

6. The vent punching mechanism for color-printed packaging bags according to claim 1, characterized in that: The bottom of the opening and closing plate (61) is fixed with a slider (12) with a T-shaped cross section, and the top of the receiving seat (8) is provided with a T-shaped groove for the slider (12) to slide.

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