A pleat removal structure

Abstract

The utility model discloses a wrinkle removing structure, including wrinkle removing platform, the wrinkle removing platform both ends are installed with feeding inclined plate and discharge inclined plate, the feeding inclined plate is close to wrinkle removing platform one side and is equipped with two groups of removal through slot, and the feeding inclined plate below is provided with the push rod subassembly of cooperation with removal through slot, the wrinkle removing platform top is provided with telescopic opening slot, the telescopic opening slot inside is installed with hot press and drive board, and the hot press is installed with pressure sensor between drive board and hot press to the pressure detection of hot press pressure, the utility model discloses through the cooperation of feeding inclined plate, discharge inclined plate and push rod subassembly, realizes the automatic delivery of paper bag, replaces manual operation, avoids the interruption in production, promotes the whole line speed, prevents the position error of manual placement from leading to the uneven wrinkle removal or device jam problem simultaneously.

Description

Technical Field

[0001] This utility model mainly relates to the field of pleating technology, specifically a pleating structure. Background Technology

[0002] In the paper bag production process, after the offset printing machine completes the printing, the paper bag needs to undergo a pleating process to ensure that the bag surface is flat and to avoid wrinkles affecting the subsequent forming, bonding quality and product aesthetics.

[0003] Existing wrinkle removal devices require manual collection and handling from the offset printing machine output to the wrinkle removal device, followed by manual placement of each paper bag at the wrinkle removal station (ensuring the paper bags are aligned). After processing, manual collection and stacking are required. This process not only causes production interruptions and reduces the overall line speed, but also causes uneven wrinkle removal due to errors in the placement of paper bags (such as paper bags being crooked or overlapping), and may even cause the device to jam, increasing the rework rate.

[0004] Meanwhile, the thickness and material of paper bags produced in actual production vary significantly due to different uses. For example, the thickness of single-layer kraft paper bags is usually 80-120 g / m², while the thickness of multi-layer composite paper bags (such as paper-plastic composites) can reach 150-300 g / m². Moreover, the material hardness and tensile strength vary significantly. The wrinkle removal pressure of existing de-wrinkling devices is mostly fixed or only supports coarse adjustment (such as manual adjustment via a knob, with a pressure adjustment accuracy of ±0.3 MPa or higher). It is impossible to accurately match the pressure according to the thickness and material characteristics of the paper bag. For thin paper bags, excessive pressure can easily cause indentations and tears on the bag surface. In particular, printed paper bags (with an ink layer on the surface) may have blurred images and text due to excessive compression. For thick or high-toughness paper bags, insufficient pressure cannot completely smooth out stubborn wrinkles at the edges and corners, resulting in unstable wrinkle removal effects. Utility Model Content

[0005] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technical solutions are too simplistic. It mainly provides a de-pleating structure to solve the technical problems mentioned in the background.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A wrinkle removal structure includes a wrinkle removal table. A feeding inclined plate and a discharging inclined plate are respectively installed at both ends of the wrinkle removal table. Two sets of movable channels are opened on the side of the feeding inclined plate near the wrinkle removal table, and a push rod assembly that cooperates with the movable channels is provided below the feeding inclined plate. A telescopic opening slot is provided above the wrinkle removal table. A hot press plate and a drive plate are installed inside the telescopic opening slot, and a pressure sensor for detecting the pressure of the hot press plate is installed between the hot press plate and the drive plate.

[0007] Preferably, the feeding inclined plate and the discharging inclined plate are equipped with baffle assemblies on their conveying sides. The baffle assembly includes two sets of baffles arranged symmetrically, and a first electric push rod for driving the baffles to move is installed on one side of the feeding inclined plate and the discharging inclined plate.

[0008] Preferably, the push rod assembly includes two sets of push rods, and the push rods can pass through the movable slot to push the paper bag to move. The ends of the push rods are connected to the mounting plate, and the mounting plate can be moved under the action of the second electric push rod.

[0009] Preferably, the telescopic opening groove includes a groove body, and a movable groove is provided at the bottom of the groove body. A U-shaped baffle that can be moved to the outside of the groove body and contact the wrinkle removal table is slidably arranged inside the movable groove, and a third electric push rod for driving the U-shaped baffle to move is installed at the top of the movable groove.

[0010] Preferably, the hot press plate is fixedly installed below the positioning plate, and the positioning plate is connected to the bottom of the drive plate by symmetrically arranged springs. The pressure sensor is installed at the center of the bottom of the drive plate, and a contact block for use with the pressure sensor is installed above the positioning plate.

[0011] Preferably, the tank is provided with a fourth electric push rod that drives the drive plate to move vertically, and the drive plate is slidably connected to the inside of the tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) By cooperating with the feeding inclined plate, the discharging inclined plate and the push rod assembly, the paper bag is automatically conveyed, replacing manual operation, avoiding production interruption, improving the overall line speed, and preventing uneven wrinkle removal or device jamming caused by manual placement errors.

[0013] (2) With the help of the hot plate and pressure sensor, combined with the spring and the fourth electric push rod, the pressure can be dynamically adjusted according to the thickness and material of the paper bag to avoid indentation of thin paper or insufficient pressing of thick paper, and ensure stable wrinkle removal effect.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 4This is a front view cross-sectional structural diagram of the telescopic opening groove of this utility model.

[0016] Numbering on the map: 1. Wrinkle removal table; 2. Feeding inclined plate; 3. Discharge inclined plate; 4. Push rod assembly; 41. Push rod; 42. Mounting plate; 43. Second electric push rod; 5. Telescopic opening slot; 51. Slot body; 52. U-shaped baffle; 6. Hot press plate; 61. Spring; 62. Fourth electric push rod; 7. Drive plate; 8. Pressure sensor; 9. Baffle assembly. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please refer to the appendix carefully. Figure 1-4 A wrinkle removal structure is provided above a wrinkle removal table 1, and a telescopic opening groove 5 is provided above the wrinkle removal table 1. The telescopic opening groove 5 includes a groove body 51, which is fixedly installed above the wrinkle removal table 1 by a fixing bracket. A movable groove is provided at the bottom of the groove body 51. A U-shaped baffle 52 that can be moved to the outside of the groove body 51 and contact the wrinkle removal table 1 is slidably provided inside the movable groove. A third electric push rod that drives the U-shaped baffle 52 to move is installed at the top of the movable groove. Multiple sets of third electric push rods can be provided. The third electric push rods are connected to an external synchronous control system to facilitate the simultaneous driving of multiple sets of third electric push rods for synchronous displacement in the later stage.

[0021] The telescopic opening slot 5 houses a hot press plate 6 and a drive plate 7. The hot press plate 6 is embedded with a nickel-chromium alloy heating wire (500-800W). This heating wire is connected to an external temperature control module via a high-temperature resistant wire, allowing for temperature adjustment within a range of 60-150℃ with a temperature control accuracy of ±2℃, meeting the hot pressing requirements of paper bags of different materials. The hot press plate 6 is existing technology and will not be described in detail. It is fixedly installed below a positioning plate, which is connected to the bottom of the drive plate 7 via symmetrically arranged springs 61. A guide telescopic rod is provided inside the springs 61 to prevent uneven pressure transmission due to lateral spring offset. A support device is installed between the hot press plate 6 and the drive plate 7. A pressure sensor 8, model NXP MPX5010, is used to detect pressure. The pressure sensor 8 is installed at the bottom center of the drive plate 7, and a contact block that works with the pressure sensor 8 is installed above the positioning plate. A fourth electric push rod 62 is installed inside the tank 51 to drive the drive plate 7 to move vertically. Both the fourth electric push rod 62 and the pressure sensor 8 are connected to an external controller. The external controller can input a preset threshold value for the pressure sensor 8. When the pressure sensor 8 detects a value that reaches the preset threshold value, the external controller controls the fourth electric push rod 62 to stop moving. The drive plate 7 is slidably connected to the inside of the tank 51.

[0022] The de-wrinkling table 1 is equipped with a feeding inclined plate 2 and a discharging inclined plate 3 at both ends. Rollers can be installed on the feeding inclined plate 2 and the discharging inclined plate 3 to reduce the friction during paper bag conveying. A baffle assembly 9 is installed on the conveying side of the feeding inclined plate 2 and the discharging inclined plate 3. The baffle assembly 9 includes two sets of baffles arranged symmetrically. A first electric push rod is installed on one side of the feeding inclined plate 2 and the discharging inclined plate 3 to drive the baffles to move. The first electric push rod is connected to an external synchronous control system to facilitate simultaneous driving of the first electric push rod for synchronous displacement in the later stage. The distance between the baffles is adjusted according to the size of the paper bag in the later stage so that the paper bag can move between the two sets of baffles, thereby limiting the position of the paper bag during the movement process. A belt conveyor (with conveying speed synchronized with the push rod assembly) is connected to the end of the discharging inclined plate 6. An automatic stacking mechanism is set at the end of the belt conveyor to realize the continuous conveying and orderly stacking of the paper bags after de-wrinkling.

[0023] Two sets of movable channels are provided on the side of the feeding inclined plate 2 near the wrinkle removal table 1, and a push rod assembly 4 is provided below the feeding inclined plate 2 to cooperate with the movable channels. The push rod assembly 4 includes two sets of push rods 41, and the push rods 41 can pass through the movable channels to push the paper bag to move. The end of the push rod 41 is connected to the mounting plate 42, and the mounting plate 42 can move under the action of the second electric push rod 43. The mounting plate 42 is slidably connected to the limiting slide rod provided at the bottom of the feeding inclined plate 2. The limiting slide rod can limit the movement direction of the mounting plate 42 to a certain extent.

[0024] The specific operating procedure of this utility is as follows: After printing, the paper bag is output from the offset printing machine and received by the feeding inclined plate 2. It slides along the inclined surface towards the wrinkle removal table 1. The baffle assembly 9 limits the two sides of the paper bag to ensure that the conveying path is centered. When the paper bag comes into contact with the U-shaped baffle 52 that contacts the top of the wrinkle removal table 1, the U-shaped baffle 52 plays a mechanical limiting role, causing the paper bag to stop moving and stay at the wrinkle removal station, providing a stable positioning reference for subsequent hot pressing.

[0025] After the paper bag is positioned, the fourth electric push rod 62 in the groove 51 drives the drive plate 7 to move down, which in turn drives the hot press plate 6 to descend synchronously. The hot press plate 6 is elastically connected to the spring 61 at the bottom of the drive plate 7 through the positioning plate. During the descent, the contact block above the positioning plate contacts the pressure sensor 8 at the bottom of the drive plate 7 to provide real-time feedback on the pressure value. When the pressure reaches the preset threshold, the fourth electric push rod 62 stops moving. The hot press plate 6 heats and presses the paper bag at the set temperature, using heat and pressure to eliminate wrinkles.

[0026] After hot pressing is completed, the fourth electric push rod 62 drives the hot pressing plate 6 to rise. Then, the third electric push rod drives the U-shaped baffle 52 to move upward, causing the U-shaped baffle 52 to retract into the moving groove of the trough 51, releasing the restriction on the paper bag. At this time, the second electric push rod 43 below the feeding inclined plate 2 pushes the mounting plate 42, causing the push rod 41 to extend along the moving through groove, pushing the hot-pressed paper bag from the wrinkle removal table 1 to the discharge inclined plate 3, completing one wrinkle removal cycle.

[0027] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A wrinkle-removing structure, comprising a wrinkle-removing table (1), characterized in that: The wrinkle removal table (1) is equipped with a feeding inclined plate (2) and a discharging inclined plate (3) at both ends. The feeding inclined plate (2) has two sets of movable channels on the side near the wrinkle removal table (1). A push rod assembly (4) that works with the movable channels is provided below the feeding inclined plate (2). A telescopic opening slot (5) is provided above the wrinkle removal table (1). A hot press plate (6) and a drive plate (7) are installed inside the telescopic opening slot (5). A pressure sensor (8) for detecting the pressure of the hot press plate (6) is installed between the hot press plate (6) and the drive plate (7).

2. The deflation structure according to claim 1, characterized in that: The feeding inclined plate (2) and the discharging inclined plate (3) are equipped with baffle assemblies (9) on the conveying side. The baffle assembly (9) includes two sets of baffles arranged symmetrically, and a first electric push rod for driving the baffles to move is installed on one side of the feeding inclined plate (2) and the discharging inclined plate (3).

3. The deflation structure according to claim 1, characterized in that: The push rod assembly (4) includes two sets of push rods (41), and the push rods (41) can pass through the movable slot to push the paper bag to move. The end of the push rod (41) is connected to the mounting plate (42), and the mounting plate (42) can be moved under the action of the second electric push rod (43).

4. The deflation structure according to claim 1, characterized in that: The telescopic opening slot (5) includes a slot body (51), and a movable slot is provided at the bottom of the slot body (51). A U-shaped baffle (52) that can be moved to the outside of the slot body (51) and contact the wrinkle removal table (1) is slidably provided inside the movable slot. A third electric push rod that drives the U-shaped baffle (52) to move is installed at the top of the movable slot.

5. The deflation structure according to claim 1, characterized in that: The hot press plate (6) is fixedly installed below the positioning plate, and the positioning plate is connected to the bottom of the drive plate (7) by symmetrically arranged springs (61). The pressure sensor (8) is installed at the center of the bottom of the drive plate (7), and a contact block that works with the pressure sensor (8) is installed above the positioning plate.

6. The deflation structure according to claim 4, characterized in that: The groove (51) is equipped with a fourth electric push rod (62) that drives the drive plate (7) to move vertically. The drive plate (7) is slidably connected to the inside of the groove (51).

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