Adjusting type flattening device based on plastic packaging bag

Abstract

The utility model relates to the technical field of flattening devices of packaging bags, in particular to an adjustable flattening device based on plastic packaging bags, which comprises a conveyor, a rectangular plate and two rolling mechanisms distributed left and right are arranged above the conveyor, each rolling mechanism comprises a supporting plate, and the supporting plates are arranged on the rectangular plate. Three electric push rods which are evenly distributed are installed at the upper end of the supporting plate, the output ends of the electric push rods penetrate through the supporting plate and are fixedly connected with a transverse plate, a U-shaped frame is arranged at the lower end of the transverse plate, a rotating roller is rotationally connected to the interior of the U-shaped frame through a rotating shaft, and a motor with the output end fixedly connected with the rotating roller is installed on the outer wall of the U-shaped frame. The outer walls of the multiple rotating rollers are wrapped with silica gel layers, Teflon layers and conductive layers correspondingly, transverse extension flattening and longitudinal flattening are conducted on a packaging bag through the two rolling mechanisms which are distributed in a 90-degree orthogonal mode, transverse wrinkles of a bag body are eliminated through friction force of the transverse flattening rollers, transverse wrinkles of the bag body are eliminated through friction force of longitudinal flattening, and the flattening effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of flattening devices for packaging bags, and specifically discloses an adjustable flattening device based on plastic packaging bags. Background Technology

[0002] In the production, warehousing and logistics transportation of plastic packaging bags, the flatness of the packaging bags directly affects their stacking and storage efficiency, transportation space utilization, and the reliability of subsequent automated sorting or palletizing operations.

[0003] Existing flattening devices mostly adopt a fixed pressure roller structure, which mainly consists of a single roller shaft, a support frame, a cylinder, etc. The packaging bag is transported to the pressure roller area by a conveyor. The upper pressure roller applies linear pressure to the packaging bag under the action of the cylinder. The roller rotates and drives the packaging bag forward, while completing single-sided flattening.

[0004] The above-mentioned flattening method has the following technical defects:

[0005] (1) Insufficient material adaptability

[0006] Existing devices typically use pressure rollers made of a single material (such as metal or rubber), which makes it difficult to meet the diverse needs of packaging bags made of different materials. For example, packaging materials with strong electrostatic adsorption tend to stick to the surface of metal rollers, while Teflon materials with high smoothness may cause ordinary rubber rollers to slip, resulting in unstable flattening effects.

[0007] (2) Flattening dimension is singular

[0008] Existing equipment can only flatten packaging bags in one direction, which is not good enough and can easily cause local damage or indentation residue. Therefore, an adjustable flattening device based on plastic packaging bags is proposed. Utility Model Content

[0009] This invention proposes an adjustable flattening device for plastic packaging bags. The device can adjust the appropriate flattening roller according to the material of the packaging bag, and can perform horizontal and vertical flattening operations on the packaging bag, with good flattening effect.

[0010] This utility model is implemented as follows: an adjustable flattening device based on plastic packaging bags includes a conveyor, and a rectangular plate and two left and right distributed roller pressing mechanisms are arranged above the conveyor.

[0011] The roller pressing mechanism includes a support plate. Three evenly distributed electric actuators are installed on the upper end of the support plate. The output ends of the electric actuators pass through the support plate and are fixedly connected to a horizontal plate. A U-shaped frame is provided at the lower end of the horizontal plate. A rotating roller is rotatably connected to the inside of the U-shaped frame via a rotating shaft. A motor with its output end fixedly connected to the rotating roller is installed on the outer wall of the U-shaped frame. The outer walls of the multiple rotating rollers are respectively wrapped with a silicone layer, a Teflon layer, and a conductive layer. Two symmetrically distributed springs are fixedly connected between the U-shaped frame and the horizontal plate. Two symmetrically distributed support blocks are fixedly connected to the upper end of the rectangular plate. A lead screw is rotatably connected between the two support blocks. A threaded sleeve is threadedly connected to the outer wall of the lead screw. The support plate of one roller pressing mechanism is fixedly connected to the threaded sleeve, and the support plate of the other roller pressing mechanism is fixedly connected to the rectangular plate.

[0012] As a preferred embodiment of the adjustable flattening device based on plastic packaging bags of this utility model, the two roller pressing mechanisms are staggered at 90 degrees.

[0013] As a preferred embodiment of the adjustable flattening device based on plastic packaging bags of this utility model, a second motor is installed on the outer wall of the front support block, and the output end of the second motor passes through the support block and is fixedly connected to the lead screw.

[0014] As a preferred embodiment of the adjustable flattening device based on plastic packaging bags of this utility model, the upper end of the horizontal plate has two symmetrically distributed through holes, and the upper end of the U-shaped frame is fixedly connected to two limiting rods located inside two springs and slidably connected to the two through holes.

[0015] As a preferred embodiment of the adjustable flattening device based on plastic packaging bags of this utility model, the upper end of the conveyor is fixedly connected to two symmetrically distributed crossbars, and rectangular plates are fixedly connected to the opposite sides of the two crossbars. Support rods are fixedly connected to the upper ends of the two rectangular plates, and the other ends of the two support rods are fixedly connected to the fixed plates.

[0016] In a preferred embodiment of this utility model, an adjustable flattening device based on a plastic packaging bag is wherein the lower end of the threaded sleeve is fitted with the upper end of the rectangular plate.

[0017] As a preferred embodiment of the adjustable flattening device based on plastic packaging bags according to this utility model, a controller is installed at the front end of the conveyor.

[0018] The beneficial effects of this utility model are:

[0019] (1) The packaging bag is flattened laterally and longitudinally by two roller pressing mechanisms that are orthogonally distributed at 90°. The lateral flattening roller eliminates the lateral wrinkles of the bag body through friction, and the longitudinal flattening eliminates the lateral wrinkles of the bag body through friction, resulting in a good flattening effect.

[0020] (2) By setting multiple rotating rollers, the outer walls of the multiple rotating rollers are respectively covered with a silicone layer (anti-slip), a Teflon layer (anti-stick), and a conductive layer (anti-static). The silicone layer is suitable for smooth materials such as PE film and PP woven bags, which improves traction and prevents slippage and deviation. The Teflon layer treats bags containing adhesive or ink that is not yet dry, reducing the adhesion rate of residues. The conductive layer discharges static charge, reducing the amount of dust adsorption and meeting the ESD S20.20 anti-static standard. Attached Figure Description

[0021] 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is an overall structural diagram of an adjustable flattening device based on a plastic packaging bag according to the present invention.

[0023] Figure 2 This is the overall main view of the present invention;

[0024] Figure 3 This is a right-side structural view of the present invention;

[0025] Figure 4 This is a structural diagram of the roller pressing mechanism of this utility model.

[0026] The markings in the diagram are: 1. Conveyor; 2. Rectangular plate; 3. Support rod; 4. Fixed plate; 5. Electric actuator; 6. Support plate; 7. Horizontal plate; 8. Spring; 9. U-shaped frame; 10. Rotary roller; 11. Motor; 12. Support block; 13. Lead screw; 14. Threaded sleeve; 15. Crossbar; 16. Second motor; 17. Limiting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0028] Please see Figure 1-4 An adjustable flattening device based on plastic packaging bags includes a conveyor 1, a fixed plate 4 and two left and right distributed roller pressing mechanisms are arranged above the conveyor 1.

[0029] The roller pressing mechanism includes a support plate 6. Three evenly distributed electric push rods 5 are installed on the upper end of the support plate 6. The output end of the electric push rod 5 passes through the support plate 6 and is fixedly connected to a horizontal plate 7. A U-shaped frame 9 is set at the lower end of the horizontal plate 7. A rotating roller 10 is rotatably connected inside the U-shaped frame 9 via a rotating shaft. A motor 11 with its output end fixedly connected to the rotating roller 10 is installed on the outer wall of the U-shaped frame 9. The outer walls of the multiple rotating rollers 10 are respectively wrapped with a silicone layer, a Teflon layer, and a conductive layer. Two springs 8 are fixedly connected between the U-shaped frame 9 and the horizontal plate 7. Two symmetrically distributed support blocks 12 are fixedly connected to the upper end of the fixed plate 4. A lead screw 13 is rotatably connected between the two support blocks 12. A threaded sleeve 14 is threadedly connected to the outer wall of the lead screw 13. The support plate 6 of one roller pressing mechanism is fixedly connected to the threaded sleeve 14, and the support plate 6 of the other roller pressing mechanism is fixedly connected to the fixed plate 4.

[0030] In this embodiment: First, a suitable roller 10 is selected according to the material of the packaging bag. For example, for packaging bags with relatively thin materials, a roller 10 with a silicone layer wrapped around its outer wall can be selected. At this time, one of the electric push rods 5 located at the left end of the roller pressing mechanism is activated to drive the corresponding horizontal plate 7, spring 8, U-shaped frame 9, and roller 10 wrapped with silicone layer to move downwards to a position close to the conveyor belt of the conveyor 1. The packaging bag is placed on the conveyor belt of the conveyor 1 and conveyed from right to left. The conveyor 1 is started to convey the packaging bag, and the motor 11 is started to make the corresponding roller 10 rotate. The conveyor 1 and the roller 10 work together to flatten the packaging bag laterally. The flattened packaging bag is then conveyed by the conveyor 1 to the bottom of the roller pressing mechanism on the right. By activating one of the electric push rods 5 on the right end of the roller pressing mechanism, the corresponding horizontal plate 7, spring 8, U-shaped frame 9 and the roller 10 wrapped with silicone layer are driven to move downward to a position close to the conveyor belt of the conveyor 1. The screw 13 is rotated, which drives the threaded sleeve 14 and the roller pressing mechanism connected to it to move back and forth, and flatten the packaging bag longitudinally.

[0031] As a technical optimization of this utility model, the two roller pressing mechanisms are staggered at 90 degrees.

[0032] In this embodiment, the two roller pressing mechanisms are staggered at 90 degrees, which facilitates the horizontal and vertical flattening of the packaging bag.

[0033] As a technical optimization of this utility model, a second motor 16 is installed on the outer wall of the front support block 12, and the output end of the second motor 16 passes through the support block 12 and is fixedly connected to the lead screw 13.

[0034] In this embodiment, the lead screw 13 can be driven to rotate by the second motor 16.

[0035] As a technical optimization of this utility model, the upper end of the horizontal plate 7 has two symmetrically distributed through holes, and the upper end of the U-shaped frame 9 is fixedly connected to two limiting rods 17 located inside the two springs 8 and slidably connected to the two through holes.

[0036] In this embodiment: when the thickness of the packaging bag changes abruptly, the spring 8 can change its compression amount instantaneously, automatically adjusting the contact pressure to avoid damage to the bag caused by rigid contact, and the movement direction of the U-shaped frame 9 is restricted by the limiting rod 17 (it can only move vertically up and down).

[0037] As a technical optimization of this utility model, the upper end of the conveyor 1 is fixedly connected to two symmetrically distributed crossbars 15. The opposite sides of the two crossbars 15 are fixedly connected to rectangular plates 2. The upper ends of the two rectangular plates 2 are fixedly connected to support rods 3. The other ends of the two support rods 3 are fixedly connected to fixed plates 4.

[0038] In this embodiment, the fixed plate 4 can be easily supported by two rectangular plates 2 and two support rods 3.

[0039] As a technical optimization of this utility model, the lower end of the threaded sleeve 14 is fitted with the upper end of the fixing plate 4.

[0040] In this embodiment, the lower end of the threaded sleeve 14 is fitted with the upper end of the fixing plate 4 to prevent the threaded sleeve 14 from rotating axially.

[0041] As a technical optimization of this utility model, a controller is installed at the front end of the conveyor 1.

[0042] In this embodiment, the motor 11, the second motor 16, and the multiple electric push rods 5 are all electrically connected to the controller, and the operation of each component can be controlled by the controller.

[0043] The working principle and usage process of this utility model are as follows: First, select a suitable roller 10 based on the material of the packaging bag. For example, for thinner packaging bags, a roller 10 with a silicone layer on its outer wall can be selected. Then, activate one of the electric push rods 5 located at the left end of the roller pressing mechanism to drive the corresponding horizontal plate 7, spring 8, U-shaped frame 9, and the silicone-coated roller 10 downwards to a position close to the conveyor belt of the conveyor 1. Place the packaging bag on the conveyor belt of the conveyor 1 and transport it from right to left. Start the conveyor 1 to transport the packaging bag and start the motor 11 to rotate the corresponding roller 10. The cooperation between conveyor 1 and roller 10 allows for the lateral flattening of the packaging bag. The flattened packaging bag is then conveyed by conveyor 1 to the area below the roller pressing mechanism on the right. By activating one of the electric actuators 5 on the right end of the roller pressing mechanism, the corresponding horizontal plate 7, spring 8, U-shaped frame 9, and roller 10 wrapped with silicone layer are driven downward to a position close to the conveyor belt of conveyor 1. This causes the lead screw 13 to rotate, driving the connected threaded sleeve 14 and roller pressing mechanism to move back and forth, thus performing a longitudinal flattening operation on the packaging bag. The flattened packaging bag continues to be conveyed by conveyor 1.

[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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.

[0045] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An adjustable flattening device based on plastic packaging bags, comprising a conveyor (1), characterized in that: A fixed plate (4) and two roller pressing mechanisms distributed on the left and right are provided above the conveyor (1); The roller pressing mechanism includes a support plate (6), on the upper end of which are three evenly distributed electric push rods (5). The output ends of the electric push rods (5) pass through the support plate (6) and are fixedly connected to a horizontal plate (7). A U-shaped frame (9) is provided at the lower end of the horizontal plate (7). A rotating roller (10) is rotatably connected inside the U-shaped frame (9) via a rotating shaft. A motor (11) with its output end fixedly connected to the rotating roller (10) is installed on the outer wall of the U-shaped frame (9). The outer walls of the multiple rotating rollers (10) are respectively wrapped with silicone layers. The U-shaped frame (9) and the horizontal plate (7) are fixedly connected by two symmetrically distributed springs (8). The upper end of the fixed plate (4) is fixedly connected by two symmetrically distributed support blocks (12). The two support blocks (12) are rotatably connected by a lead screw (13). The outer wall of the lead screw (13) is threadedly connected to a threaded sleeve (14). The support plate (6) of one of the roller pressing mechanisms is fixedly connected to the threaded sleeve (14), and the support plate (6) of the other roller pressing mechanism is fixedly connected to the fixed plate (4).

2. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: The two roller pressing mechanisms are offset by 90 degrees.

3. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: A second motor (16) is installed on the outer wall of the support block (12) at the front end. The output end of the second motor (16) passes through the support block (12) and is fixedly connected to the lead screw (13).

4. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: The upper end of the horizontal plate (7) has two symmetrically distributed through holes, and the upper end of the U-shaped frame (9) is fixedly connected to two limiting rods (17) located inside the two springs (8) and slidably connected to the two through holes.

5. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: The upper end of the conveyor (1) is fixedly connected to two symmetrically distributed crossbars (15). The opposite sides of the two crossbars (15) are fixedly connected to rectangular plates (2). The upper ends of the two rectangular plates (2) are fixedly connected to support rods (3). The other ends of the two support rods (3) are fixedly connected to fixed plates (4).

6. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: The lower end of the threaded sleeve (14) is attached to the upper end of the fixing plate (4).

7. The adjustable flattening device based on a plastic packaging bag according to claim 1, characterized in that: A controller is installed at the front end of the conveyor (1).

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