A woven bag perforating apparatus

Abstract

This utility model discloses a woven bag punching device, including an operating table and two frames for supporting the operating table. Multiple punching mechanisms arranged horizontally are mounted on the operating table via a lifting mechanism. A blade-bearing plate is also installed within the operating table, and the blade-bearing plate has a groove adapted to the blades within the punching mechanisms. It also includes two vertical plates distributed on both sides of the blade-bearing plate. A pressure plate is slidably connected to the side of the vertical plates near the blade-bearing plate, and a boss is integrally formed on the side of the vertical plates. The boss is connected to the pressure plate by a spring. This utility model uses the pressure plate to lock the woven bag to be punched, and the lifting and lowering of the pressure plate is controlled by a lifting pedal, making operation convenient and easy to control. This utility model also features multiple blade holders and blades mounted on a mounting rod, allowing for multiple punching operations on the woven bag during a single lifting and lowering of the mounting rod, thus improving punching efficiency.

Description

Technical Field

[0001] This utility model relates to the field of woven bag production technology, and in particular to a woven bag punching device. Background Technology

[0002] Woven bags are bag-shaped packaging products made primarily of plastic, which are extruded, stretched into flat filaments, and then woven.

[0003] For woven bags used to hold items that need to breathe and avoid dampness and heat, perforation is required during the production process to ensure air permeability and ventilation. To improve the automation of woven bag perforation, a perforation device for plastic woven bag production was disclosed in application number 201920528813.6. This device uses an automatically positioning rotary head to perform perforation on the woven bag. However, this device only has one rotary head, which is inefficient if multiple perforations are to be performed on the woven bag. Therefore, improvements are needed.

[0004] In addition, the rubber pad used to compress the woven bag in the device is adjusted up and down by a hand crank, and the locking and unlocking method is relatively complicated, so this part also needs to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a woven bag punching device to solve the problems mentioned in the background section.

[0006] This utility model provides the following technical solution: a woven bag punching device, including an operating table and two frames for supporting the operating table. Multiple punching mechanisms arranged in the left and right are mounted on the operating table through a lifting mechanism. A blade support plate is also installed inside the operating table, and the blade support plate is provided with a blade groove adapted to the blade in the punching mechanism. It also includes two vertical plates distributed on the left and right sides of the blade support plate. A pressure plate is slidably connected to the side of the vertical plate near the blade support plate, and a boss is integrally formed on the side of the vertical plate. The boss is connected to the pressure plate by a spring. It also includes a lifting assembly for controlling the rise of the pressure plate.

[0007] Preferably, the lifting assembly includes a lifting pedal that is slidably connected between the platforms, a first concave wheel is horizontally mounted inside the vertical plate, and two wire guide grooves distributed on the left and right sides are also provided inside the operating table. A second concave wheel perpendicular to the first concave wheel is rotatably connected inside the wire guide grooves. A pull rope is fixed on the pressure plate. The pull ropes on the left and right sides are wound upward around the first concave wheels on the left and right sides, then pass downward through the wire guide grooves, and then wound around the second concave wheels on the left and right sides before being connected to the pedal.

[0008] Preferably, there are two springs distributed front to back between the pressure plate and the boss, and they are located at the same left and right position as the connection point between the pull rope and the pressure plate.

[0009] Preferably, the lifting mechanism includes two brackets fixed to the operating table surface and distributed on the left and right. The back of the brackets is slidably connected to the lifting sliders. The lower side of the operating table surface is equipped with two cylinders, and the piston rods in the cylinders are respectively connected upward to the two sliders. An installation rod is fixed between the two sliders, and the drilling mechanism is mounted on the installation rod.

[0010] Preferably, the drilling mechanism includes a fixed seat fixed to the mounting rod, the bottom surface of the fixed seat is provided with a mounting groove, and a tool holder is fixed in the mounting groove. The tool is fixed in the tool holder and extends to the lower side of the tool holder.

[0011] Preferably, the cutting tool is a hollow drill bit.

[0012] Preferably, it also includes a chip removal mechanism, which includes a sleeve mounted on the lower side of the blade support plate and connected to the blade groove. The lower ends of each sleeve are connected to a hollow horizontal tube. A vacuum cleaner is fixed between the frames, and the hollow horizontal tube is connected to the air inlet of the vacuum cleaner.

[0013] This utility model provides a punching device for woven bags, which has the following beneficial effects: This invention uses a pressure plate to lock the woven bag to be punched, and uses a lifting pedal to control the lifting of the pressure plate, making it convenient and easy to control. This invention features a mounting rod equipped with multiple tool holders and tools, enabling multiple punching operations on woven bags during a single lifting and lowering of the mounting rod, thereby improving punching efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of this utility model; Figure 2 This is a schematic diagram of the appearance of this utility model from another perspective; Figure 3 yes Figure 1 Enlarged diagram of point A in the middle.

[0015] In the picture: 11. Operating table; 12. Frame; 21. Support; 22. Slider; 23. Cylinder; 24. Mounting rod; 31. Blade support plate; 41. Vertical plate; 42. Pressure plate; 43. Boss; 44. No. 1 concave wheel; 45. No. 2 concave wheel; 46. Pedal; 47. Pull rope; 51. Fixing seat; 53. Blade holder; 61. Sleeve; 62. Hollow horizontal tube; 63. Vacuum cleaner. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Reference Figures 1-3 According to an embodiment of the woven bag punching device of the present invention, it includes an operating table 11 and two frames 12 for supporting the operating table 11. The operating table 11 is equipped with a plurality of punching mechanisms arranged in the left and right directions via a lifting mechanism. The operating table 11 is also equipped with a blade support plate 31. The blade support plate 31 is provided with a blade groove adapted to the blade in the punching mechanism. When the woven bag is placed on the operating table 11 and the lifting mechanism drives the punching mechanism to move downward, the blade in the punching mechanism will pass through the woven bag and enter the blade groove to complete the punching of the woven bag. Afterward, the punching mechanism is raised to facilitate the removal of the punched woven bag.

[0021] To ensure that the woven bag is locked during punching, two vertical plates 41 are distributed on the left and right sides of the blade plate 31. A pressure plate 42 is slidably connected to the side of the vertical plate 41 near the blade plate 31, and a boss 43 is integrally formed on the side of the vertical plate 41. The boss 43 is connected to the pressure plate 42 by a spring. A lifting component is also included to control the rise of the pressure plate 42.

[0022] In this embodiment, the lifting assembly includes a lifting pedal 46 that is slidably connected between the platform 12. A first concave wheel 44 (extending in the front-back direction of the axis) is horizontally installed in the vertical plate 41. Two wire guide grooves distributed on the left and right are also provided in the operating table 11. A second concave wheel 45 perpendicular to the first concave wheel 44 is rotatably connected in the wire guide groove. A pull rope 47 is fixed on the pressure plate 42. The pull ropes 47 on the left and right are wound upward around the first concave wheel 44 on the left and right, then pass downward through the wire guide groove, and then wound around the second concave wheel 45 on the left and right before being connected to the pedal 46.

[0023] When the worker steps on the pedal 46, they will pull the pull rope 47 downwards, and through the guidance of the second concave wheel 45 and the first concave wheel 44, pull the pressure plate 42 upwards. At this time, the worker can place the woven bag on the operating table 11 and under the pressure plate 42. When the worker stops stepping on the pedal 46, the pressure plate 42 will move downwards under the action of the spring and press the woven bag onto the operating table 11 to complete the locking of the woven bag. During this process, the pedal 46 will be pulled upwards and reset by the pull rope 47.

[0024] Furthermore, the sliding trajectory of the pedal 46 can be set at an angle to avoid jamming, and a concave surface can be provided inside the pedal 46 to better fit the foot. The lower side of the pressure plate 42 is provided with rubber strips distributed on the left and right to increase the friction between it and the woven bag. The spring between the pressure plate 42 and the boss 43 is provided with two springs distributed in the front and back, and the connection point between the pull rope 47 and the pressure plate 42 is at the same left and right position to avoid the pressure plate 42 from getting stuck.

[0025] In a second embodiment of the lifting assembly, the pressure plate 42 can also be controlled by a locking cylinder mounted on the boss 43 to clamp the woven bag (not shown in the figure).

[0026] The lifting mechanism includes two supports 21 fixed on the operating table 11 and distributed on the left and right. The back of the supports 21 is connected to the lifting sliders 22 by sliding rails. The lower side of the operating table 11 is equipped with two cylinders 23, and the piston rods in the cylinders 23 are respectively connected upward to the two sliders 22. An installation rod 24 is fixed between the two sliders 22, and the drilling mechanism is mounted on the installation rod 24.

[0027] The drilling mechanism includes a fixed base 51 fixed to the mounting rod 24. The bottom surface of the fixed base 51 is provided with a mounting groove, and a tool holder 53 is fixed in the mounting groove by fasteners. The tool is fixed in the tool holder 53 and extends to the lower side of the tool holder 53.

[0028] That is, the cylinder 23 can control the mounting rod 24 and the fixed seat 51 to rise and fall through the slider 22, and when the fixed seat 51 moves downward, it can drive the knife through the knife holder 53 and cooperate with the knife groove to punch holes in the woven bag.

[0029] Furthermore, to avoid compression and accumulation at the edges of the holes inside the woven bag, the cutting tool is a hollow drill bit. To prevent the hollow drill bit from ejecting chips upwards and contaminating the worktable 11, a chip removal mechanism is also included, such as... Figure 2 As shown, the chip removal mechanism includes a sleeve 61 mounted on the lower side of the blade plate 31 and connected to the blade groove. The lower ends of each sleeve 61 are connected to a hollow horizontal tube 62. A vacuum cleaner 63 is fixed between the frames 12. The hollow horizontal tube 62 is connected to the air inlet of the vacuum cleaner 63.

[0030] When the slider 22 drives the cutter holder 53 to descend, and the hollow drill bit completes the drilling of the woven bag and enters the cutter groove, the vacuum cleaner 63 works and creates a negative pressure in the hollow horizontal tube 62, the sleeve 61 and the cutter groove, and sucks the waste material drilled by the hollow drill bit into the vacuum cleaner 63. The specific structure and principle of the vacuum cleaner 63 are common knowledge and existing technology, and will not be described in detail here.

[0031] It should be noted that, as Figure 1 The knife holder 53 shown is a simple knife holder with limited pressure resistance, and the clamping force of the pressure plate 42 connected by the spring is also limited, which means that the woven bag punching device can only punch single-layer or stacked bags with a small number of layers.

[0032] It should be further explained that the fixed seat 51 can be adjusted left and right and then locked again, and the number can be increased or decreased. The blade plate 31, the sleeve 61 and the hollow horizontal tube 62 can be replaced as a set and reconnected to the vacuum cleaner 63. The pressure plate 42 can be extended laterally to improve the applicability of the woven bag punching device and punch holes of different specifications and positions.

[0033] In this embodiment, the bracket 21 is positioned at the rear so that the cutting tool maintains a certain safe distance from the operator in front of the operating table 11, and the switch for triggering the cylinder 23 can be manually controlled by the operator to ensure safety.

[0034] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A woven bag punching device, comprising an operating table (11) and two supports (12) for supporting the operating table (11), characterized in that: The operating table (11) is equipped with multiple punching mechanisms arranged in the left and right directions via a lifting mechanism. The operating table (11) is also equipped with a knife support plate (31), and the knife support plate (31) is provided with a knife groove adapted to the knife in the punching mechanism. It also includes two vertical plates (41) distributed on the left and right sides of the blade support plate (31). A pressure plate (42) is slidably connected to the side of the vertical plate (41) near the blade support plate (31). A boss (43) is integrally formed on the side of the vertical plate (41). The boss (43) is connected to the pressure plate (42) by a spring. It also includes a lifting component for controlling the rise of the pressure plate (42).

2. The woven bag punching device according to claim 1, characterized in that: The lifting assembly includes a lifting pedal (46) that is slidably connected between the platform (12). A first concave wheel (44) is horizontally mounted in the vertical plate (41). Two wire grooves distributed on the left and right are also provided in the operating table (11). A second concave wheel (45) perpendicular to the first concave wheel (44) is rotatably connected in the wire groove. A pull rope (47) is fixed on the pressure plate (42). The pull ropes (47) on the left and right are wound upward around the first concave wheel (44) on the left and right and then pass downward through the wire groove. After being wound around the second concave wheel (45) on the left and right, they are connected to the pedal (46).

3. The woven bag punching device according to claim 2, characterized in that: Two springs are provided between the pressure plate (42) and the boss (43), and they are located at the same left and right position as the connection point between the pull rope (47) and the pressure plate (42).

4. The woven bag punching device according to claim 1, characterized in that: The lifting mechanism includes two brackets (21) fixed on the operating table (11) and distributed on the left and right. The back of the brackets (21) is slidably connected to the lifting sliders (22). The lower side of the operating table (11) is equipped with two cylinders (23), and the piston rods in the cylinders (23) are respectively connected upward to the two sliders (22). An installation rod (24) is fixed between the two sliders (22), and the drilling mechanism is mounted on the installation rod (24).

5. The woven bag punching device according to claim 4, characterized in that: The drilling mechanism includes a fixed seat (51) fixed on the mounting rod (24), the bottom surface of the fixed seat (51) is provided with a mounting groove, and a tool holder (53) is fixed in the mounting groove. The tool is fixed in the tool holder (53) and extends to the lower side of the tool holder (53).

6. The woven bag punching device according to claim 5, characterized in that: The cutting tool is a hollow drill bit.

7. A woven bag punching device according to claim 6, characterized in that: It also includes a chip removal mechanism, which includes a sleeve (61) mounted on the lower side of the blade plate (31) and connected to the blade groove. The lower ends of each sleeve (61) are connected to a hollow horizontal tube (62). A vacuum cleaner (63) is fixed between the frames (12), and the hollow horizontal tube (62) is connected to the air inlet of the vacuum cleaner (63).

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