Bubble bag blank leveling and feeding mechanism

Abstract

The utility model discloses a bubble bag blank leveling and feeding mechanism in the field of feeding mechanisms, which comprises a rack, a front roller arranged at the front end and a rear roller arranged at the rear end are connected in the rack, a front adjusting roller capable of moving up and down is arranged below the front roller, and the two ends of the front adjusting roller penetrate through the rack to extend outwards. The two outer sides of the rack are connected with pushing air cylinders with the output ends connected with the two ends of the front adjusting roller and controlling movement, the rear roller is connected with a rear pressing rolling strip attached to the surface after being turned over, and the two sides of the rear pressing rolling strip are connected with connecting pieces riveted to the rack. And a tension adjusting roller which is arranged between the front roller and the rear roller and is arranged below the front roller and the rear roller is also connected in the rack. Structures for pressing and leveling bubble bag blanks are additionally arranged at the front end and the rear end of the rack, so that the bubble bag blanks are always kept in a flat state during conveying, a tension adjusting roller for controlling the rotating speed is additionally arranged in the middle of the rack, the tension during blank feeding is flexibly controlled, and the flatness during blank conveying can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding mechanisms, in particular to a bubble bag blank flattening and feeding mechanism. Background Art

[0002] A bubble bag, also known as a bubble film bag, a bubble packaging bag or a bubble envelope bag, is a transparent, soft, shock-proof and compression-resistant packaging material. Its appearance is a transparent film, which contains many tiny bubbles inside. These bubbles are formed by being sealed between two layers of plastic films, so it is given good shock absorption performance and can effectively protect the packaged items from damage caused by impact and vibration. It is mainly used in the packaging of various fields such as electronic products, glass products, ceramic products, precision instruments, handicrafts, auto parts, hardware tools, toys, fruits, vegetables, daily necessities, etc. Especially in the express logistics industry, it is widely welcomed for its good buffering performance and environmental protection characteristics.

[0003] A bubble bag blank is the basic material for making bubble bags, and its main component is polyethylene. Polyethylene is a thermoplastic plastic, which forms independent bubbles through a series of process treatments such as heating and melting, blow molding, etc. Before the blank is processed, a feeding mechanism is usually used to convey the blank to the processing end. However, in order to make the blank be conveyed more smoothly, the current feeding mechanism only sets a few simple rotating shafts, and the blank is flattened by the rotating shafts. However, when the feeding mechanism of this structure conveys the blank, the blank is prone to wrinkles, and the tension when conveying the blank cannot be adjusted. When it is too loose, it will affect the flatness of the blank conveying. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art solutions, the utility model provides a bubble bag blank flattening and feeding mechanism, which can effectively solve the technical problems that the bubble bag blank is prone to wrinkles and unevenness during feeding.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A bubble bag blank flattening and feeding mechanism includes a frame. A front roller is connected inside the frame at the front end, and a rear roller is connected at the rear end. A front adjusting roller that moves up and down is arranged below the front roller. Both ends of the front adjusting roller extend outwards through the frame. On both outer sides of the frame, a pushing cylinder is connected, and the output end of the pushing cylinder is connected to both ends of the front adjusting roller to control the movement. The rear roller is connected with a rear pressing rolling bar that is turned over and attached to the surface. Connecting pieces riveted to the frame are connected to both sides of the rear pressing rolling bar. A tension adjusting roller is also connected inside the frame between the front roller and the rear roller and below both of them. A locking column that presses one side surface of the tension adjusting roller is inserted into the outer side of the frame.

[0007] Further, a hollowed-out portion distributed along the moving direction of the front adjusting roller is provided at the position where the frame extends outward to adjust the position of the front adjusting roller.

[0008] Further, a clamping block is connected to the output end of the pushing air cylinder, and a clamping groove for placing the pushing air cylinder is provided on the surface of the clamping block.

[0009] Further, the connecting member moves closely against the inner wall of the frame, and a convex block for blocking the connecting member from flipping downward is provided on the inner wall of the frame.

[0010] Further, the frame is provided with a screw hole for inserting and fixing a locking column, and a screwing portion is provided at one end of the locking column facing the outside of the frame.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The present utility model adds a structure for pressing and leveling the bubble bag blank at both the front end and the rear end of the frame, so that the bubble bag blank is always in a flat state during transmission, avoiding wrinkles that may affect processing. At the same time, a tension adjusting roller for controlling the rotation speed is added in the middle of the frame, which can flexibly control the tension when the blank is fed, and can also improve the flatness of the blank during transmission. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0015] Reference numerals in the drawings:

[0016] 1 - frame, 2 - front roller, 3 - rear roller, 4 - front adjusting roller, 5 - pushing air cylinder, 6 - rear pressing scroll bar, 7 - connecting member, 8 - tension adjusting roller, 9 - locking column, 10 - hollowed-out portion, 11 - clamping block, 12 - clamping groove, 13 - convex block, 14 - screw hole, 15 - screwing portion. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Such as Figure 1-2As shown in the figure, the present utility model provides a leveling and feeding mechanism for bubble bag blanks, which is mainly used for feeding and leveling the bubble bag blanks during processing, making the blanks flatter before processing. Its specific structure mainly includes a frame 1. Inside the frame 1, a front roller 2 is connected at the front end and a rear roller 3 is connected at the rear end. The blank is input from one end of the front roller 2 and finally output from one end of the rear roller 3. Leveling processing is carried out between the front roller 2 and the rear roller 3 to ensure that the output blank has no wrinkles or overlapping parts.

[0019] A front adjusting roller 4 that moves up and down is provided below the front roller 2. When the front adjusting roller 4 rises, there is a certain gap between it and the front roller 2. After the blank passes through the gap, it is clamped by the front roller 2 and the front adjusting roller 4. When the blank is pulled towards the output end, the front roller 2 and the front adjusting roller 4 rotate in the same direction. During the rotation process, the surface of the blank is flattened. Further, the front adjusting roller 4 adjusted below the front roller 2 avoids uneven force and directly pressing on the surface of the front roller 2, which may cause excessive clamping of the blank and affect the conveying.

[0020] Both ends of the front adjusting roller 4 extend outwards through the frame 1. On both outer sides of the frame 1, a pushing cylinder 5 is connected. The output end of the pushing cylinder 5 is connected to both ends of the front adjusting roller 4 to control the movement. The two side pushing cylinders 5 are arranged below the front adjusting roller 4, and the distance between the front adjusting roller 4 and the front roller 2 is changed by the telescopic adjustment of the output end. In order to further strengthen the connection between the pushing cylinder 5 and both ends of the front adjusting roller 4, a clamping block 11 for clamping the front adjusting roller 4 is connected to the telescopic end of the pushing cylinder 5, and a clamping groove 12 for placing and allowing the front adjusting roller 4 to rotate inside is provided on the surface of the clamping block 11. At the same time, in order not to affect the up and down movement of the front adjusting roller 4, the frame 1 is provided with a hollowed-out portion 10 distributed along the moving direction of the front adjusting roller 4 at the position where the front adjusting roller 4 extends outwards, and both ends of the front adjusting roller 4 move within the range of the hollowed-out portion 10.

[0021] The rear roller 3 is connected with a rear pressing scroll bar 6 that is flipped and attached to the surface. Both sides of the rear pressing scroll bar 6 are connected with connecting pieces 7 riveted to the frame 1. In addition to the front roller 2 being able to level the blank, the rear roller 3 at the rear end can also level the state of the blank during conveying through the rear pressing scroll bar 6 that rolls on the surface. The blank is conveyed while attached to the surface of the rear roller 3, and the rear pressing scroll bar 6 is lightly pressed on the blank on the surface of the rear roller 3 after being flipped. Before the blank is conveyed, the user can flip the rear pressing scroll bar 6 through the connecting piece 7 to disengage it from the rear roller 3, and then press it on again during normal blank conveying.

[0022] The connecting piece 7 moves closely along the inner wall of the frame 1. The inner wall of the frame 1 is provided with a convex block 13 that blocks the downward flipping of the connecting piece 7. When the user flips the rear pressing scroll bar 6 outwards, the convex block 13 limits the flipping angle of the rear pressing scroll bar 6. At this time, the rear pressing scroll bar 6 does not need to fall into the frame 1 under the influence of gravity, which affects the convenience of operation.

[0023] A tension adjustment roller 8 is also connected inside the frame 1. The tension adjustment roller 8 is disposed between the front roller 2 and the rear roller 3 and below both of them. A locking column 9 that presses one side surface of the tension adjustment roller 8 is inserted outside the frame 1. The tension adjustment roller 8 is mainly used to adjust the tightness when the blank is conveyed. Therefore, when the blank is drawn inside the frame 1, it is sequentially laid above the front adjustment roller 4, below the tension adjustment roller 8, and above the rear roller 3. When the blank at the output end is too loose, the user can slow down the rotation speed of the tension adjustment roller 8 by screwing in the locking column 9 to strengthen the traction at the output end. When balance is achieved, the tension adjustment roller 8 is loosened again, which is more flexible. At the same time, in order to better assemble and adjust the locking column 9, a screw hole 14 for inserting and fixing the locking column 9 by thread is provided outside the frame 1, and a screwing portion 15 convenient for the user to turn is provided outside the locking column 9.

[0024] Compared with the traditional technology, in this technical solution, structures for pressing and leveling the bubble bag blank are added at both the front end and the rear end of the frame 1, so that the bubble bag blank is always in a flat state during transmission, avoiding wrinkles that may affect processing. At the same time, a tension adjustment roller 8 for controlling the rotation speed is added in the middle of the frame 1, which can flexibly control the tension when the blank is loaded, and can also improve the flatness of the blank during transmission.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model, and any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A leveling and feeding mechanism for bubble bag blanks, comprising a frame, characterized in that: Inside the frame, a front roller is connected at the front end and a rear roller is connected at the rear end. A front adjusting roller that moves up and down is provided below the front roller. Both ends of the front adjusting roller extend outward through the frame. On both outer sides of the frame, a pushing cylinder is connected, whose output end is connected to both ends of the front adjusting roller to control the movement. The rear roller is connected with a rear pressing scroll bar that fits against its surface after flipping. Connecting pieces riveted to the frame are connected to both sides of the rear pressing scroll bar. Inside the frame, a tension adjusting roller is also connected between the front roller and the rear roller and below both of them. A locking column that presses one side surface of the tension adjusting roller is inserted into the outer side of the frame.

2. The leveling and feeding mechanism for bubble bag blanks according to claim 1, characterized in that: At the position where the front adjusting roller extends outward from the frame, there are hollowed-out areas distributed along the moving direction of the front adjusting roller.

3. The leveling and feeding mechanism for a bubble bag blank according to claim 1, wherein: The output end of the pushing cylinder is connected with a clamping block, and a clamping groove for placing the pushing cylinder is provided on the surface of the clamping block.

4. The leveling and loading mechanism for bubble bag blanks according to claim 1, characterized in that: The connecting piece moves closely along the inner wall of the frame, and a convex block that blocks the connecting piece from flipping downward is provided on the inner wall of the frame.

5. The leveling and feeding mechanism for bubble bag blanks according to claim 1, wherein: The frame is provided with a screw hole for inserting and fixing the locking column, and a screwing part is provided at one end of the locking column facing the outer side of the frame.

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