PE bag punching device

Abstract

The utility model discloses a kind of PE bag punching device, it is related to PE bag processing equipment technical field, including base, mounting bracket, drilling device, driving device and clamping device;Base upper end is equipped with mounting bracket, drilling device is equipped in mounting bracket inner upper end, inner lower end two sides are equipped with driving device, clamping device is equipped on driving device. Drilling device is moved along sliding rod by electric cylinder driving sliding plate, motor drives drill bit to punch;Driving device rotates by rotating handle, gear transmission driving screw rod rotates;Clamping device is reversely moved by the threaded block of reverse thread driving clamping rod, and it is realized firm clamping by cooperation elastic connecting plate;Base is equipped with upper and lower base shell and damping mechanism, and double damping is realized by buffer spring and damping grease. The utility model solves the problem that existing device is not stable, punching precision is low, damping is insufficient and inconvenient to adjust, has the advantage that clamping is firm, punching precision is high, damping effect is good, and it is convenient to adjust, is suitable for PE bag batch punching operation.

Description

Technical Field

[0001] This utility model relates to the technical field of PE bag processing equipment, specifically a PE bag punching device. Background Technology

[0002] In the production and processing of PE bags, it is often necessary to punch holes in the bags to meet usage requirements such as breathability, hanging, and drainage. Currently available PE bag punching devices have many technical shortcomings and cannot meet the demands for efficient and high-precision processing. Poor clamping stability: Most devices use a rigid clamping structure for their clamping mechanism, which cannot be adapted to PE bags of different thicknesses. This can easily lead to PE bag breakage due to excessive clamping or PE bag displacement during punching due to excessively loose clamping, resulting in punching position deviation and affecting product quality. Insufficient vibration damping: During the drilling process, the high-speed rotation of the electric motor and the lifting and lowering of the electric cylinder will generate significant vibration. The existing device lacks an effective vibration damping structure. The vibration will not only accelerate the wear of parts and shorten the life of the equipment, but will also be transmitted to the PE bag and drill bit, resulting in inconsistent hole diameter and rough hole wall. Low drill bit positioning accuracy: The drill bit is prone to shaking during the raising and lowering process and lacks a reliable positioning guide structure, resulting in large deviations in the drilling position and hole diameter of the same batch of PE bags, and a low pass rate. Low operating efficiency: Some devices require manual adjustment of the clamping position and drill height multiple times, making the operation process cumbersome, difficult to adapt to batch processing scenarios, and resulting in low processing efficiency.

[0003] In view of the shortcomings of the existing technology, there is an urgent need for a PE bag punching device that has stable clamping, good shock absorption, high punching accuracy, strong adaptability and convenient operation, so as to solve the technical problems in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a PE bag punching device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A PE bag punching device includes a base, a mounting frame, a drilling device, a driving device, and a clamping device. The mounting frame is fixedly mounted on the upper end of the base. The mounting frame is a frame structure used to integrate and install various functional components. The upper end of the mounting frame is provided with a drilling device for punching holes in the PE bag. Both sides of the lower end of the mounting frame are provided with driving devices for providing clamping driving force. Each driving device is correspondingly provided with a clamping device for clamping and fixing the PE bag.

[0006] As a further embodiment of this utility model: the base includes an upper base shell and a lower base shell; the upper base shell and the lower base shell are slidably connected by a slide rail to ensure that the upper base shell can move stably up and down relative to the lower base shell; at least two shock-absorbing mechanisms are evenly arranged between the upper base shell and the lower base shell to buffer the vibration during the drilling process.

[0007] As a further embodiment of this utility model: the shock absorption mechanism includes a sleeve, a plug, a buffer spring, damping grease, and a sealing strip; the bottom of the sleeve is fixedly installed on the top of the lower base shell, the top of the plug is fixedly connected to the bottom of the upper base shell, and the plug is movably sleeved on the inner side of the top of the sleeve, with a gap between them to allow the plug to move up and down; the buffer spring is movably sleeved on the outside of the sleeve, and both ends of the buffer spring abut against the bottom of the upper base shell and the top of the lower base shell, respectively, for initially absorbing vibration energy; the inside of the sleeve is filled with damping grease, which has high viscosity and can generate hysteresis resistance to the movement of the plug, further consuming vibration energy; a sealing strip is fixedly sleeved inside the sleeve near the top, and the sealing strip is interference-fitted on the outer surface of the plug to seal the gap between the sleeve and the plug, preventing damping grease leakage; 2-4 grease holes are opened along the axial direction on the plug to ensure smooth flow of damping grease when the plug moves, avoiding the damping effect due to damping grease accumulation.

[0008] As a further embodiment of this utility model: the drilling device includes a lower mounting rod, a sliding rod, an electric cylinder, a sliding plate, a motor, and a drill bit; sliding rods are fixedly installed on both sides of the upper end inside the mounting frame, the sliding rods are cylindrical structures with their axes vertically arranged; a lower mounting rod is integrally formed on the lower end of the sliding rod, the lower mounting rod is a horizontal rectangular plate used for positioning the drill bit; an electric cylinder is fixedly installed at the middle position of the upper end inside the mounting frame, the piston rod of the electric cylinder is vertically downward, and the end of the piston rod is fixed. A sliding plate is connected; both ends of the sliding plate are provided with sliding holes adapted to the sliding rod. The sliding plate is sleeved on the sliding rod through the sliding holes and slides with the sliding rod to ensure stable lifting and lowering of the sliding plate; a motor is fixedly installed at the lower end of the sliding plate. The output shaft of the motor is set vertically downward, and a drill bit is fixedly connected to the end of the output shaft; a through hole coaxial with the drill bit is opened on the lower mounting rod. The diameter of the through hole is 0.1-0.3mm larger than the outer diameter of the drill bit, which facilitates the drill bit to pass through and prevents the drill bit from shaking.

[0009] As a further embodiment of this utility model: the driving device includes a mounting rod, a threaded rod, a driven gear, a driving gear, a rotating rod, and a rotating handle; mounting rods are fixedly installed at both the upper and lower ends of the lower side of the mounting frame, and the mounting rods are vertical rectangular rods; a threaded rod is rotatably connected between two mounting rods on the same side via a bearing, and the axis of the threaded rod is vertically set; a fixing hole is provided at the through connection between the mounting rod and the threaded rod, the outer ring of the bearing is fixedly installed in the fixing hole, and the inner ring is fixedly sleeved on the threaded rod to ensure stable rotation of the threaded rod; the threaded rod... The upper end of the rod extends through to the outer side of the upper end of the mounting rod, and a driven gear is fixedly sleeved on the upper through end of the threaded rod; a driving gear meshes with the outer side of the driven gear, and the driving gear and the driven gear have the same module and a transmission ratio of 1:1 to ensure smooth transmission; the driving gear is fixedly sleeved on the inner end of the rotating rod, the axis of the rotating rod is horizontally set, and the end away from the driving gear extends through to the outer side of the mounting frame; a rotating handle is fixedly installed on the outer end of the rotating rod, and a rubber anti-slip sleeve is sleeved on the outer side of the rotating handle for easy gripping by the operator.

[0010] As a further embodiment of this utility model: the clamping device includes a threaded block, a clamping rod, a limiting block, and an elastic connecting plate; both ends of the threaded rod are threadedly connected to threaded blocks, and the threads at the upper and lower ends of the threaded rod are in opposite directions (right-hand thread at the upper end and left-hand thread at the lower end), ensuring that the upper and lower threaded blocks can move towards or away from each other when the threaded rod rotates; a clamping rod is fixedly connected to the outer end of the threaded block (on the side closest to the center of the device), the clamping rod being a horizontal rectangular rod with its length along the front-back direction of the device; limiting blocks are fixedly installed at corresponding positions on the inner sides of the two clamping rods, the limiting blocks being made of rubber to avoid scratching the PE bag; an elastic connecting plate is fixedly connected between the two limiting blocks, the elastic connecting plate being a polyurethane elastic plate with a thickness of 3-5mm, having good elastic deformation capability, and adaptable to PE bags of different thicknesses.

[0011] As a further improvement of this utility model: both the electric cylinder and the electric motor are electrically connected to an external power supply and an external control motherboard; the model of the external control motherboard is EAMB-1521, and the control motherboard is equipped with control buttons and a display screen, which can control the lifting speed and stroke of the electric cylinder and the start / stop and speed of the electric motor, and display the working status parameters of the equipment (such as cylinder stroke and motor speed).

[0012] As a further improvement of this utility model: the drill bit is made of high-speed steel or cemented carbide; when processing PE bags with a thickness ≤2mm, a high-speed steel drill bit is selected, which has a lower cost; when processing PE bags with a thickness >2mm, a cemented carbide drill bit is selected, which has stronger wear resistance and a longer service life.

[0013] As a further improvement of this utility model, the outer surface of the sliding rod is coated with lubricating oil (model No. 32 machine oil) to reduce the frictional resistance between the sliding plate and the sliding rod, making the sliding plate rise and fall more smoothly and further improving the drilling accuracy.

[0014] Compared with the prior art, the beneficial effects of this utility model are: Stable clamping and strong adaptability: The drive device drives the threaded rod to rotate, and the reverse thread makes the clamping rods move in opposite directions. Combined with the elastic deformation of the elastic connecting plate, it can firmly clamp PE bags and adapt to PE bags with a thickness of 0.1-10mm, avoiding damage or displacement of PE bags. Excellent vibration damping effect: The double-shell sliding structure of the base, combined with the vibration damping mechanism, the buffer spring initially absorbs the vibration, and the damping grease and the hysteresis effect of the plug further consume the vibration energy, reducing the vibration amplitude of the device during operation by more than 60%, effectively protecting the components and improving the drilling accuracy. High drilling precision: The guiding effect of the sliding rod on the sliding plate and the positioning effect of the through hole on the drill bit ensure that the drill bit rises and falls smoothly without shaking. The drilling position deviation of the same batch of PE bags is ≤0.1mm and the hole diameter deviation is ≤0.05mm, and the pass rate is increased to over 99%. Easy and efficient operation: PE bags can be quickly clamped / released by turning the handle. The control board enables automated control of the electric cylinder and motor, allowing for single-person operation. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a PE bag punching device.

[0017] Figure 2 This is a schematic diagram of the structure of a PE bag punching device at point A.

[0018] Figure 3 This is a schematic diagram of the base in a PE bag punching device.

[0019] Figure 4 This is a schematic diagram of the shock-absorbing structure in a PE bag punching device.

[0020] In the diagram: Base 1, Upper base shell 101, Lower base shell 102, Mounting bracket 2, Threaded block 3, Threaded rod 4, Elastic connecting plate 5, Clamping rod 6, Limiting block 7, Lower mounting rod 8, Sliding rod 9, Drill bit 10, Through hole 11, Motor 12, Sliding plate 13, Electric cylinder 14, Mounting rod 15, Fixing hole 16, Driven gear 17, Driven gear 18, Rotating rod 19, Rotating handle 20, Shock absorption mechanism 21, Plug sleeve 2101, Plug plunger 2102, Buffer spring 2103, Damping grease 2104, Sealing strip 2105. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figures 1-4 In this embodiment of the utility model, a PE bag punching device is suitable for batch punching of PE bags with a thickness ≤2mm, and its specific structure is as follows: 1. Base structure The base 1 includes an upper base shell 101 and a lower base shell 102, which are slidably connected by a linear slide rail (model LSR20). Four damping mechanisms 21 are evenly arranged between the two, located at the four corners of the base 1. Among the damping mechanisms 21, the plug sleeve 2101 is made of 45# steel, with an inner diameter of 20mm and a height of 50mm; the plug 2102 is made of the same material, with a diameter of 19.8mm and a height of 40mm; the buffer spring 2103 is of model GB / T2089-2009, with a wire diameter of 3mm, an outer diameter of 18mm, and a free length of 60mm; the damping grease 2104 is a high-temperature damping grease (model KD-830), with a filling amount of 80% of the internal volume of the plug sleeve; the sealing strip 2105 is made of nitrile rubber, with an inner diameter of 19.7mm and a thickness of 2mm; the plug 2102 has three grease holes with a diameter of 2.5mm, evenly distributed circumferentially.

[0025] 2. Mounting frame and drilling device Mounting bracket 2 is welded from aluminum alloy profiles, with frame dimensions of 800mm×500mm×600mm (length×width×height). In the drilling device, sliding rod 9 is made of No. 45 steel, with a diameter of 20mm and a length of 400mm; lower mounting rod 8 is made of 6mm thick Q235 steel plate, with dimensions of 300mm×50mm (length×width); electric cylinder 14 is model SC63-50, with a stroke of 50mm and a working pressure of 0.4-0.6MPa; sliding plate 13 is made of 8mm thick aluminum alloy plate, with dimensions of 200mm×100mm; motor 12 is model Y2-7124, with a power of 0.37kW and a speed of 1400r / min; drill bit 10 is made of high-speed steel (model W18Cr4V), with a diameter of 5mm and a apex angle of 118°; through hole 11 has a diameter of 5.2mm.

[0026] 3. Drive device and clamping device In the drive unit, mounting rod 15 is a 10mm thick Q235 steel rod with a length of 200mm; threaded rod 4 is made of 45# steel with a diameter of 16mm and a length of 180mm, with M16×2 right-hand and M16×2 left-hand threads at the top and bottom ends respectively; driven gear 17 and driving gear 18 both have a module of 2, 20 teeth, and an accuracy grade of 8; rotating rod 19 is made of 45# steel with a diameter of 12mm and a length of 150mm; rotating handle 20 is made of ABS plastic with a diameter of 50mm, and is covered with a 3mm thick rubber anti-slip sleeve on the outside. In the clamping device, threaded block 3 is made of 45# steel with an internal thread that matches the threaded rod; clamping rod 6 is a 6mm thick aluminum alloy rod with a length of 300mm; limiting block 7 is made of silicone rubber with dimensions of 20mm×20mm×10mm; elastic connecting plate 5 is a polyurethane elastic plate with a thickness of 4mm and a hardness of 60 Shore A.

[0027] 4. Control and Connection The electric cylinder 14 and the electric motor 12 are connected to an external 220V AC power supply and an EAMB-1521 control board via RVV2×1.5mm² wires. The control board is mounted on the side of the mounting bracket 2 and is equipped with two buttons (to control drilling start and reset respectively) and an LCD display (to display cylinder stroke and motor speed).

[0028] 5. Work Process (1) Power-on check: Turn on the external power supply and check whether the electric cylinder 14 and the motor 12 are running normally and whether the shock absorption mechanism 21 is not stuck through the control board. (2) Place the PE bag: Lay the PE bag to be punched flat on the workbench on the top of the upper base shell 101 (the workbench is a 3mm thick stainless steel plate with a size of 600mm×400mm), and adjust the position of the PE bag so that the point to be punched is directly below the drill bit 10. (3) Clamping and fixing: Rotate the handle 20 clockwise to drive the driving gear 18, driven gear 17 and threaded rod 4 to rotate. The threaded block 3 drives the clamping rod 6 to move in opposite directions. The elastic connecting plate 5 contacts the PE bag and produces slight deformation (deformation amplitude ≤ 1mm), thus completing the clamping. (4) Drilling operation: Press the "start" button on the control board. The motor 12 drives the drill bit 10 to rotate at high speed (1400r / min). The piston rod of the electric cylinder 14 drives the sliding plate 13, the motor 12, and the drill bit 10 to move downward along the sliding rod 9. After the drill bit 10 passes through the through hole 11, it drills a hole in the PE bag. The drilling depth is preset by the control board (usually 5-10mm). (5) Reset and take out: After the drilling is completed, the electric cylinder 14 automatically resets (piston rod retracts) and the motor 12 stops running; turn the handle 20 counterclockwise to release the clamping device, take out the PE bag, and complete the single operation.

[0029] It should be noted that this utility model is a PE bag punching device. All components are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Example

[0030] Based on the PE bag punching device provided in the first embodiment of this application, the second embodiment of this application proposes another PE bag punching device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0031] Specifically, the difference between the PE bag punching device provided in the second embodiment of this application and the one provided is that: The drill bit 10 is made of cemented carbide (model WC-Co, Co content 10%), with a diameter of 8mm, and is suitable for PE bags with a thickness of 3-5mm. The electric cylinder model 14 has been changed to SC80-80 with a stroke of 80mm to meet the punching depth requirements of thicker PE bags. The outer surface of the sliding rod 9 is coated with No. 32 machine oil, which is replenished every 100 hours to reduce sliding friction. The buffer spring 2103 of the shock absorption mechanism 21 has been changed to GB / T2089-2009, with a wire diameter of 4mm and an outer diameter of 22mm, to enhance the shock absorption capacity and adapt to heavier carbide drill bits and long-stroke cylinders.

[0032] An infrared positioning sensor (not shown) is added to the inside of the clamping rod 6. The sensor is electrically connected to the control board. When the part of the PE bag to be punched is aligned with the through hole 11, the sensor sends a signal, and the control board lights up the indicator light to remind the operator that the PE bag is accurately positioned, further improving the accuracy of the punching position.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PE bag punching device, characterized in that, The device includes a base (1), a mounting frame (2), a drilling device, a driving device, and a clamping device. The mounting frame (2) is fixedly mounted on the upper end of the base (1). A drilling device for punching holes in PE bags is provided at the upper end of the mounting frame (2). Driving devices for providing driving force are provided on both sides of the lower end of the mounting frame (2). Each driving device is correspondingly equipped with a clamping device for holding PE bags. The base (1) includes an upper base shell (101) and a lower base shell (102). The upper base shell (101) and the lower base shell (102) are slidably connected. A shock-absorbing mechanism (21) for reducing device vibration is provided between the upper base shell (101) and the lower base shell (102). The drilling device includes… The mounting bracket (2) includes a lower mounting rod (8), a sliding rod (9), an electric cylinder (14), a sliding plate (13), a motor (12), and a drill bit (10). Sliding rods (9) are fixedly mounted on both sides of the upper end of the mounting bracket (2). A lower mounting rod (8) is integrally formed at the lower end of the sliding rod (9). An electric cylinder (14) is fixedly mounted at the middle position of the upper end of the mounting bracket (2). A sliding plate (13) is fixedly connected to the lower end of the electric cylinder (14). Both ends of the sliding plate (13) are sleeved through the corresponding sliding rod (9), and the sliding plate (13) slides in cooperation with the sliding rod (9). A motor (12) is fixedly mounted on the lower end of the sliding plate (13). The motor (12)... A drill bit (10) is fixedly connected to the end of the output shaft; a through hole (11) coaxially arranged with the drill bit (10) is provided on the lower mounting rod (8), and the lower end of the drill bit (10) can extend through to the lower outer side of the through hole (11); the driving device includes a mounting rod (15), a threaded rod (4), a driven gear (17), a driving gear (18), a rotating rod (19), and a rotating handle (20); mounting rods (15) are fixedly installed at both the upper and lower ends of the lower end of the mounting frame (2); a threaded rod (4) is rotatably connected between the two mounting rods (15) on the same side; a fixing hole (16) is provided at the through connection between the mounting rod (15) and the threaded rod (4); the upper end of the threaded rod (4) The threaded rod (4) extends through to the outer side of the upper mounting rod (15), and the upper through end of the threaded rod (4) is fixedly sleeved with a driven gear (17); the outer side of the driven gear (17) is meshed with a driving gear (18); the driving gear (18) is fixedly sleeved on the inner end of the rotating rod (19); the end of the rotating rod (19) away from the driving gear (18) extends through to the outer side of the mounting frame (2); the outer end of the rotating rod (19) is fixedly installed with a rotating handle (20); the clamping device includes a threaded block (3), a clamping rod (6), a limiting block (7) and an elastic connecting plate (5); the upper and lower ends of the threaded rod (4) are both threadedly connected to the threaded block (3), and the threads of the upper and lower ends of the threaded rod (4) are opposite in direction;A clamping rod (6) is fixedly connected to the outer end of the threaded block (3); limit blocks (7) are fixedly installed at corresponding positions on the inner sides of the two clamping rods (6); an elastic connecting plate (5) is fixedly connected between the two limit blocks (7).

2. The PE bag punching device according to claim 1, characterized in that, The shock absorption mechanism (21) includes a plug sleeve (2101), a plug plunger (2102), a buffer spring (2103), damping grease (2104), and a sealing strip (2105); the bottom of the plug sleeve (2101) is fixedly installed on the top of the lower base shell (102); the top of the plug plunger (2102) is fixedly connected to the bottom of the upper base shell (101), and the plug plunger (2102) is movably sleeved on the inner side of the top of the plug sleeve (2101); the buffer spring (2103) is movably sleeved on the plug sleeve (2105). The sleeve (2101) is located outside the body, and the two ends of the buffer spring (2103) abut against the bottom of the upper base shell (101) and the top of the lower base shell (102) respectively; the sleeve (2101) is filled with damping grease (2104); a sealing strip (2105) is fixedly sleeved inside the sleeve (2101), and the sealing strip (2105) is interference-fitted on the outer surface of the plug (2102); the plug (2102) is provided with grease holes for the flow of damping grease (2104).

3. The PE bag punching device according to claim 1, characterized in that, The electric cylinder (14) and the electric motor (12) are both electrically connected to an external power supply and an external control motherboard; the model of the external control motherboard is EAMB-1521.

4. The PE bag punching device according to claim 1, characterized in that, The driving gear (18) and the driven gear (17) have the same module, and the transmission ratio between the driving gear (18) and the driven gear (17) is 1:

1.

5. The PE bag punching device according to claim 1, characterized in that, The drill bit (10) is made of high-speed steel or cemented carbide; the diameter of the through hole (11) is 0.1-0.3 mm larger than the outer diameter of the drill bit (10).

6. The PE bag punching device according to claim 1, characterized in that, The outer surface of the sliding rod (9) is coated with lubricating oil.

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