Full paper barrel cover barrel bottom edge flattening device

Abstract

This utility model discloses a flattening device for the bottom edge of a paper drum lid, including a precise positioning and flattening assembly. The assembly comprises a receiving plate, a slot, a positioning groove, a C-shaped plate, a guide rod, and a pressure ring. The receiving plate is fixedly connected to the side of the cylindrical rod. A slot is formed through the receiving plate. Four positioning grooves are formed on the rectangular base, symmetrically and equidistantly distributed on the rectangular base. A C-shaped plate is fixedly connected to the rectangular base, and a guide rod is movably connected within the C-shaped plate. The guide rod movably passes through the slot and the positioning groove, and a pressure ring is fixedly connected to the outer side of the guide rod. The four symmetrically and equidistantly distributed positioning grooves on the rectangular base, combined with the slots of the receiving plate and the interlocking of the guide rod, can precisely rotate the drum body or lid driven by the cylindrical rod to a preset angle, ensuring that each edge area is flattened sequentially, avoiding repeated pressing or omissions, and fundamentally improving the uniformity of flattening.

Description

Technical Field

[0001] This utility model relates to the field of paper drum production technology, specifically a device for flattening the edge of the lid and bottom of a paper drum. Background Technology

[0002] As an important form of environmentally friendly packaging, the flatness of the edges of the lid and bottom of paper drums directly affects the sealing performance and overall strength. The edge flattening device, through precise mechanical action, flattens the wrinkles and protrusions on the edges of the lid and bottom, and is one of the core pieces of equipment in the production of paper drums to ensure product quality.

[0003] Existing flattening devices typically rotate the lid or body of the paper drum to flatten different areas in order to ensure uniform flattening of the lid and bottom edge. However, since the outer areas of the lid and body are consistent, it is not easy to observe precisely during the rotation process, resulting in some areas being repeatedly squeezed while others are missed. This leads to uneven pressing of the lid and bottom edge. Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a device for flattening the edge of the lid and bottom of a paper drum, thereby solving the problems mentioned in the background section. To solve these technical problems, this utility model is achieved through the following technical solution: This utility model is a device for flattening the edge of the lid and bottom of a paper drum, comprising: A receiving and flattening assembly includes a receiving seat, a rectangular seat, a circular groove, a cylindrical rod, and an extrusion plate. The rectangular seat is fixedly connected to the top of the receiving seat. A circular groove is opened on the rectangular seat. A cylindrical rod is movably connected in the circular groove. A barrel body or barrel cover is movably sleeved on the outside of the cylindrical rod. An extrusion plate is movably connected to the receiving seat. A precision positioning and flattening assembly includes a receiving plate, a slot, a positioning groove, a C-shaped plate, a guide rod, and a pressure ring. The receiving plate is fixedly connected to the side of the cylindrical rod. A slot is formed through the receiving plate. A rectangular base has four positioning grooves, which are symmetrically and equidistantly distributed on the rectangular base. A C-shaped plate is fixedly connected to the rectangular base. A guide rod is movably connected to the C-shaped plate. The guide rod movably passes through the slot and the positioning groove. A pressure ring is fixedly connected to the outside of the guide rod.

[0005] Furthermore, the extrusion plate is generally arc-shaped.

[0006] Furthermore, the precise positioning and flattening assembly also includes a fastening spring, which is movably sleeved on the outer side of the guide rod.

[0007] Furthermore, the precise positioning and flattening assembly also includes a pull rod and a first cylinder. One end of the first cylinder is fixedly connected to the receiving seat, and the other end of the first cylinder is fixedly connected to a rectangular seat. The top of the guide rod is fixedly connected to the pull rod.

[0008] Furthermore, the receiving and flattening assembly also includes a second cylinder, one end of which is fixedly connected to the receiving seat, and the other end of which is fixedly connected to an extrusion plate.

[0009] Furthermore, it also includes a buffer-assisted pressing assembly, which includes a third cylinder, a metal plate, a rubber plate, a limiting post, and a buffer spring. One end of the third cylinder is fixedly connected to the receiving seat, and the other end of the third cylinder is fixedly connected to the metal plate. The limiting post is movably connected in the metal plate, and the bottom of the limiting post is fixedly connected to the rubber plate. The buffer spring is movably sleeved on the outside of the limiting post.

[0010] Furthermore, the buffer-assisted pressing assembly also includes a limiting circular plate, and the limiting circular plate is fixedly connected to the top of the limiting post.

[0011] This utility model has the following beneficial effects: This invention features four symmetrically spaced positioning slots on a rectangular base. These slots, combined with the slots in the receiving plate and the interlocking of the guide rod, allow the cylindrical rod to precisely rotate the barrel or lid to a preset angle (positioning once every 90° rotation). This ensures that each area of ​​the edge is flattened in sequence, avoiding repeated squeezing or omissions, and fundamentally improving the uniformity of flattening. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments 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.

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the connection of the receiving plate of this utility model; Figure 4 This is a schematic diagram of the pressure ring connection of this utility model; Figure 5 This is a schematic diagram of the movable connection of the buffer spring of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 101. Receiving seat; 102. Rectangular seat; 103. Circular groove; 104. Cylindrical rod; 106. Extrusion plate; 107. Second cylinder; 201. Receiving plate; 202. Slot; 203. Positioning slot; 204. C-shaped plate; 205. Guide rod; 206. Pressure ring; 207. Fastening spring; 208. Pull rod; 209. First cylinder; 301. Third cylinder; 302. Metal plate; 303. Rubber plate; 304. Limiting post; 305. Buffer spring; 306. Limiting circular plate. Detailed Implementation

[0015] 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.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] Please see Figure 1-5 As shown, this utility model is a device for flattening the bottom edge of a paper drum lid, comprising: The receiving and flattening assembly includes a receiving seat 101, a rectangular seat 102, a circular groove 103, a cylindrical rod 104, and an extrusion plate 106. The rectangular seat 102 is fixedly connected to the top of the receiving seat 101. A circular groove 103 is opened on the rectangular seat 102. The cylindrical rod 104 is movably connected in the circular groove 103. The barrel body or barrel cover is movably sleeved on the outside of the cylindrical rod 104. The extrusion plate 106 is movably connected to the receiving seat 101. The precision positioning and flattening assembly includes a receiving plate 201, a slot 202, a positioning groove 203, a C-shaped plate 204, a guide rod 205, and a pressure ring 206. The cylindrical rod 104 is fixedly connected to the receiving plate 201 on its side. The slot 202 is opened through the receiving plate 201. The rectangular base 102 is opened with a total of four positioning grooves 203, which are symmetrically and equidistantly distributed on the rectangular base 102. The C-shaped plate 204 is fixedly connected to the rectangular base 102. The guide rod 205 is movably connected in the C-shaped plate 204. The guide rod 205 movably passes through the slot 202 and the positioning groove 203. The pressure ring 206 is fixedly connected to the outside of the guide rod 205. The mounting base 101 ensures the installation of the rectangular base 102. The rectangular base 102 ensures the opening of the circular groove 103. The circular groove 103 ensures the movable connection of the cylindrical rod 104. The cylindrical rod 104 ensures the movable locking of the drum body and lid of the paper drum. The extrusion plate 106 contacts the edges of the drum body and lid, thus pressing and flattening them. The mounting base 201 ensures the opening of the slot 202. The C-shaped plate 204 ensures the movable connection of the guide rod 205. The guide rod 205 ensures the installation of the pressure ring 206. The guide rod 205, the slot 202, and the positioning groove 203 work together to ensure the precise positioning of the cylindrical rod 104 as it drives the drum body and lid to rotate to different positions.

[0018] The extrusion plate 106 is generally arc-shaped; The shape of the extrusion plate 106 ensures that it fits tightly against the barrel body and the side of the barrel lid, thereby improving the flattening effect.

[0019] The precise positioning and flattening assembly also includes a fastening spring 207, with the fastening spring 207 movably sleeved on the outer side of the guide rod 205; The fastening spring 207 enables the pressure ring 206 to press against the receiving plate 201, thereby further improving the limiting effect on the cylindrical rod 104.

[0020] The precise positioning and flattening assembly also includes a pull rod 208 and a first cylinder 209. One end of the first cylinder 209 is fixedly connected to the receiving seat 101, and the other end of the first cylinder 209 is fixedly connected to the rectangular seat 102. The top of the guide rod 205 is fixedly connected to the pull rod 208. The pull rod 208 makes it easy for the user to pull the guide rod 205, and the first cylinder 209 enables the rectangular seat 102 to move, providing sufficient space for the subsequent disassembly and replacement of the bucket body and lid.

[0021] The receiving and flattening assembly also includes a second cylinder 107. One end of the second cylinder 107 is fixedly connected to the receiving seat 101, and the other end of the second cylinder 107 is fixedly connected to the extrusion plate 106. The second cylinder 107 is used to move the extrusion plate 106.

[0022] It also includes a buffer auxiliary pressing component, which includes a third cylinder 301, a metal plate 302, a rubber plate 303, a limiting post 304, and a buffer spring 305. One end of the third cylinder 301 is fixedly connected to the receiving seat 101, and the other end of the third cylinder 301 is fixedly connected to the metal plate 302. The limiting post 304 is movably connected in the metal plate 302. The bottom of the limiting post 304 is fixedly connected to the rubber plate 303, and the buffer spring 305 is movably sleeved on the outside of the limiting post 304. The third cylinder 301 ensures the vertical movement of the metal plate 302 and the rubber plate 303. The limiting post 304 ensures the movable connection of the buffer spring 305. The rubber plate 303 can assist in pressing down on the fixed barrel and lid, achieving a stable connection between the barrel and lid and preventing them from shaking during the extrusion process. The slightly rough texture of the rubber surface of the rubber plate 303 can increase the friction with the cardboard, preventing the workpiece from shifting due to pressure during the flattening process and further improving stability. At the same time, the elasticity of the buffer spring 305 changes linearly with the amount of compression, changing the flattening process from "sudden pressure" to "gradual pressure". Under slow force, the fibers of the cardboard can be stretched more evenly, reducing local wrinkles and rebounds caused by instantaneous force, and the flatness of the edges after flattening is more durable.

[0023] The buffer-assisted downward pressure assembly also includes a limiting circular plate 306, and the limiting circular plate 306 is fixedly connected to the top of the limiting post 304; The limiting circular plate 306 serves to limit the rubber plate 303.

[0024] Working principle: The barrel to be flattened is fitted onto the outside of the cylindrical rod 104. Then, the first cylinder 209 is opened, pushing the rectangular seat 102 to move until the fitted barrel is moved to the bottom of the rubber plate 303. Then, the third cylinder 301 is opened, moving the metal plate 302 and the rubber plate 303 downwards until the rubber plate 303 contacts and compresses the fitted barrel. At this time, the buffer spring 305 is compressed and deformed. Then, the second cylinder 107 is opened, moving the extrusion plate 106. Together with the extrusion of the rubber plate 303, the bottom edge of the barrel is flattened. At this time, a guide rod 205 is inserted into the corresponding slot 202 and positioning slot 203. At the same time, the fastening spring 207 generates a downward force, causing the pressure ring 206 connected to the guide rod 205 to press against the receiving plate 201. After the bottom edge of this area is flattened, the third cylinder 301 is closed, and the rubber plate 303 is moved downwards. 3. Move upwards, then pull the corresponding lever 208. At this time, the guide rod 205 is disengaged from the corresponding slot 202 and positioning slot 203. Then rotate the receiving plate 201 to the next positioning slot 203 position. At this time, the cylindrical rod 104 and the barrel sleeved on its outside rotate together. Then pull the next lever 208 upwards, which moves the corresponding guide rod 205 upwards. When the slot 202 is aligned with the positioning slot 203, release the lever 208 to fix the area after the barrel rotates. Then repeat the above flattening process until the bottom edge of the barrel is evenly flattened. Then close the first cylinder 209 to move the rectangular seat 102 and the barrel above it. Then remove the flattened barrel and attach the barrel lid to the cylindrical rod 104. Open the first cylinder 209 and move the barrel lid to the bottom of the rubber plate 303. Then repeat the above flattening process.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A full paper barrel lid barrel bottom edge flattening device characterized by, include: The receiving and flattening assembly includes a receiving seat (101), a rectangular seat (102), a circular groove (103), a cylindrical rod (104), and an extrusion plate (106). The top of the receiving seat (101) is fixedly connected to the rectangular seat (102). A circular groove (103) is opened on the rectangular seat (102). The cylindrical rod (104) is movably connected in the circular groove (103). The barrel body or barrel cover is movably sleeved on the outside of the cylindrical rod (104). The extrusion plate (106) is movably connected on the receiving seat (101). A precision positioning and flattening assembly includes a receiving plate (201), a slot (202), a positioning groove (203), a C-shaped plate (204), a guide rod (205), and a pressure ring (206). The cylindrical rod (104) is fixedly connected to the receiving plate (201) on its side. The receiving plate (202) is opened through the slot. The rectangular base (102) is opened with a positioning groove (203). There are a total of four positioning grooves (203), which are symmetrically and equidistantly distributed on the rectangular base (102). The C-shaped plate (204) is fixedly connected to the rectangular base (102). The guide rod (205) is movably connected in the C-shaped plate (204). The guide rod (205) movably passes through the slot (202) and the positioning groove (203). The pressure ring (206) is fixedly connected to the outside of the guide rod (205).

2. The all-paper barrel lid and bottom edge flattening apparatus of claim 1, wherein: The extrusion plate (106) is generally arc-shaped.

3. The all-paper barrel lid and bottom edge flattening apparatus of claim 1, wherein: The precision positioning and flattening assembly also includes a fastening spring (207), which is movably sleeved on the outside of the guide rod (205).

4. The all-paper barrel lid and bottom edge flattening apparatus of claim 1, wherein: The precise positioning and flattening assembly also includes a pull rod (208) and a first cylinder (209). One end of the first cylinder (209) is fixedly connected to the receiving seat (101), and the other end of the first cylinder (209) is fixedly connected to a rectangular seat (102). The top of the guide rod (205) is fixedly connected to the pull rod (208).

5. The all-paper barrel lid and bottom edge flattening apparatus of claim 1, wherein: The receiving and flattening assembly also includes a second cylinder (107), one end of the second cylinder (107) is fixedly connected to the receiving seat (101), and the other end of the second cylinder (107) is fixedly connected to the extrusion plate (106).

6. The all-paper barrel lid and bottom edge flattening apparatus of claim 1, wherein: It also includes a buffer auxiliary pressing component, which includes a third cylinder (301), a metal plate (302), a rubber plate (303), a limiting post (304), and a buffer spring (305). One end of the third cylinder (301) is fixedly connected to the receiving seat (101), and the other end of the third cylinder (301) is fixedly connected to the metal plate (302). The limiting post (304) is movably connected in the metal plate (302), and the rubber plate (303) is fixedly connected to the bottom of the limiting post (304). The buffer spring (305) is movably sleeved on the outside of the limiting post (304).

7. The all-paper barrel lid and bottom edge flattening apparatus of claim 6, wherein: The buffer-assisted pressing assembly also includes a limiting circular plate (306), and the limiting circular plate (306) is fixedly connected to the top of the limiting post (304).

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