Conveying device applied to cold stretching film sleeving machine

Abstract

The utility model relates to a conveying device applied to a cold stretching film sleeving machine, and relates to the field of film sleeving machines. The conveying device is arranged among a plurality of film collecting mechanisms of the film sleeving machine, the conveying device comprises a driving beam, a long roller and a short roller, the driving beam is in meshed connection with a conveying chain through a plurality of idle chain wheels, and the conveying chain is used for driving a material tray to move in the first direction; the two groups of long rollers are symmetrically arranged on two sides of the middle part of the driving beam; two groups of short rollers are symmetrically arranged on the two sides of the first end part of the driving beam, and the other two groups of short rollers are symmetrically arranged on the two sides of the second end part of the driving beam; the long roller and the short roller are used for assisting the material tray to move in the first direction; the driving beam, the two sets of long rollers and the four sets of short rollers are all arranged in the first direction. Under the condition, materials can be smoothly butted, a conveyor at the front end does not need to wait, slipping with the conveyor is avoided during material butting, a thin film is not damaged, and the stability and the operation takt of the whole production line are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of film coating machine technology, and in particular to a conveying device used in a cold stretch film coating machine. Background Technology

[0002] Currently, in the feed and chemical bagging industries, it is very common for bagged goods to be left exposed in the open. Existing protective measures mainly employ two methods: wrapping and sleeving. Using cold-stretch film for sleeving can provide packaging that is protected from rain and snow on 5 to 6 sides, ensuring the goods are not affected by weather, and also provides UV protection. Furthermore, cold-stretch film has high puncture resistance, providing complete stack protection for the bags and preventing accidental damage. The key to cold-stretch sleeving technology lies in successfully conveying, heat-sealing, cutting, mold opening, and finally stretching and stacking the film from the film rack, ensuring the continuity and stability of the entire process.

[0003] However, existing film-wrapping machines have the following problems in practical applications:

[0004] Firstly, during the film-wrapping process, the film on the wrapped material is frequently punctured by the chain conveyor inside the film-wrapping machine, or gets caught on the conveyor, causing damage and gradually rendering it unusable and posing a physical safety hazard. In such cases, operators need to manually intervene, using a knife to cut open the already wrapped film, discarding the damaged film, and then restarting the production line to re-wrap the material. This frequent downtime and manual intervention not only significantly reduces production efficiency but also causes unnecessary economic losses.

[0005] Secondly, when the chain conveyor inside the film-coating machine connects with the front-end conveyor, it must wait for the chain plate to reach its designated position before the front-end conveyor can transport the material. This causes the material to frequently slip upon contact with the chain plate, preventing a smooth transition onto it. Specifically, when the front-end conveyor starts from a stop, the material loses its momentum and cannot smoothly transition onto the chain plate in one go, resulting in slippage. This prevents the material from being centered on the chain plate, further affecting the next movement of the film-coating machine and creating a design flaw. Both slippage and the front-end conveyor stopping to wait for the right moment significantly slow down the entire production line, causing unnecessary economic losses. Summary of the Invention

[0006] The purpose of this invention is to provide a conveying device for use in a cold stretch film forming machine, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A conveying device for a cold stretch film coating machine, located between multiple film collecting mechanisms of the film coating machine, the conveying device for the cold stretch film coating machine comprising:

[0009] A drive beam is connected to a conveyor chain via multiple idler sprockets, the conveyor chain being used to drive a material pallet to move along a first direction;

[0010] Two sets of long rollers are symmetrically arranged on both sides of the middle of the drive beam; and

[0011] There are four sets of short rollers, two sets of which are symmetrically arranged on both sides of the first end of the drive beam, and the other two sets are symmetrically arranged on both sides of the second end of the drive beam.

[0012] The long roller and the short roller are used to assist the material tray in moving along the first direction; the drive beam, the two sets of long rollers, and the four sets of short rollers are all arranged along the first direction.

[0013] In one possible implementation, the drive beam is mounted on two sets of long legs and two sets of short legs by means of fixed angle irons, with the two sets of short legs located on the outside of the two sets of long legs respectively.

[0014] In one possible implementation, the conveyor chain is powered by a drive sprocket meshing with it, the drive sprocket being driven by a drive motor mounted on the long support leg.

[0015] In one possible implementation, the drive sprocket is connected to the drive motor via a key, a set screw, and a locking plate to prevent axial and radial movement.

[0016] In one possible implementation, the long roller is connected to the long support leg via a long roller mounting sheet metal connection, and the short roller is connected to the short support leg via a short roller mounting sheet metal connection.

[0017] In one possible implementation, the short leg and the long leg are fixed together by a leg connecting beam.

[0018] In one possible implementation, the long roller mounting sheet metal and the short roller mounting sheet metal are fixed together by sheet metal connecting angle irons.

[0019] In one possible implementation, both the short leg and the long leg are fitted with height-adjusting feet at their bottoms.

[0020] The beneficial effects of the technical solution provided by this utility model include at least the following:

[0021] By placing this conveying device among multiple film collection mechanisms of the film coating machine, the conveying device includes a drive beam, long rollers, and short rollers. The drive beam is connected to a conveyor chain via multiple idler sprockets, and the conveyor chain drives the material tray to move along a first direction. There are two sets of long rollers symmetrically arranged on both sides of the middle of the drive beam; there are four sets of short rollers, with two sets symmetrically arranged on both sides of the first end of the drive beam and the other two sets symmetrically arranged on both sides of the second end of the drive beam. The long rollers and short rollers assist the material tray in moving along the first direction. The drive beam, the two sets of long rollers, and the four sets of short rollers are all arranged along the first direction. In this configuration, materials can be smoothly connected without waiting on the front-end conveyor. Slippage will not occur when connecting materials to the conveyor, and the film will not be damaged, greatly improving the stability and operating cycle of the overall production line. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] Figure 1 The diagram shows a top view of a conveying device and film collecting mechanism for a cold stretch film forming machine, provided in an exemplary embodiment of the present invention.

[0024] Figure 2 This is a front view schematic diagram of the drive beam portion of a conveying device for a cold stretching film machine provided in an exemplary embodiment of the present invention.

[0025] In the diagram: 1. Film collection mechanism; 2. Sheet metal mounting of long roller; 3. Long roller; 4. Support connecting beam; 5. Sheet metal mounting of short roller; 6. Short roller; 7. Sheet metal connecting angle iron; 8. Long support leg; 9. Short support leg; 10. Idler sprocket; 11. Drive beam; 12. Fixed angle iron; 13. Material tray; 14. Conveyor chain; 15. Adjustable foot plate; 16. Drive motor; 17. Drive sprocket. Detailed Implementation

[0026] 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.

[0027] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This illustration shows a top view of a conveying device and film collecting mechanism for a cold stretch film forming machine, provided in an exemplary embodiment of the present invention. Figure 2 This illustration shows a front view of the drive beam portion of a conveying device for a cold stretch film coating machine, provided by an exemplary embodiment of the present invention. The conveying device is disposed among multiple film collecting mechanisms 1 of the film coating machine. Specifically, the conveying device includes: a drive beam 11, long rollers 3, and short rollers 6. The drive beam 11 is connected to a conveying chain 14 via multiple idler sprockets 10. The idler sprockets 10 are fixed to the drive beam 11 by bolts. The conveying chain 14 is used to drive the material tray 13 to move along a first direction. There are two sets of long rollers 3, symmetrically arranged on both sides of the middle portion of the drive beam 11. There are four sets of short rollers 6, two sets symmetrically arranged on both sides of the first end of the drive beam 11, and the other two sets symmetrically arranged on both sides of the second end of the drive beam 11. The long rollers 3 and short rollers 6 assist the material tray 13 in moving along the first direction. The drive beam 11, the two sets of long rollers 3, and the four sets of short rollers 6 are all arranged along the first direction.

[0030] As existing technology, the film collecting mechanism 1 of the film coating machine is a device used to collect and arrange the film from the film frame into a shape suitable for film coating, ensuring that the film is flat and wrinkle-free during the film coating process and can be smoothly covered on the material. The idler sprocket 10 is an auxiliary wheel used in the transmission system, mainly used to adjust the tension and guide the chain, ensuring that the chain runs smoothly and evenly.

[0031] In this embodiment of the application, the first direction is the process route direction, and the front end of the conveying device applied to the cold stretching film coating machine is used to dock with the front end conveyor along the first direction. The conveying device applied to the cold stretching film coating machine is used to replace the chain plate conveyor used in the film coating machine in the prior art.

[0032] In detail, the drive beam 11 is mounted on two sets of long supports 8 and two sets of short supports 9 via fixed angle irons 12, with the two sets of short supports 9 located on the outer sides of the two sets of long supports 8. The conveyor chain 14 is powered by a drive sprocket 17 meshing with it, and the drive sprocket 17 is connected to a drive motor 16 mounted on the long supports 8. The drive sprocket 17 is connected to the drive motor 16 via a key, set screw, and locking plate to prevent axial and radial movement.

[0033] In this embodiment, the drive sprocket 17 is mounted on the output shaft of the drive motor 16, and torque is transmitted through the cooperation of the keyway and key to ensure that the sprocket rotates synchronously with the motor shaft; the set screw is used to fix the sprocket on the motor shaft to prevent loosening; the locking plate further tightens the set screw to ensure the stability and reliability of the connection and prevent it from loosening during high-speed operation.

[0034] Furthermore, the long roller 3 is connected to the long support leg 8 via the long roller mounting sheet metal 2, and the short roller 6 is connected to the short support leg 9 via the short roller mounting sheet metal 5. The short support leg 9 and the long support leg 8 are fixed together by the support leg connecting beam 4. The long roller mounting sheet metal 2 and the short roller mounting sheet metal 5 are fixed together by the sheet metal connecting angle iron 7. Adjustable foot plates 15 for adjusting height are installed at the bottom of both the short support leg 9 and the long support leg 8.

[0035] In this embodiment, adjustable feet 15 for height adjustment are installed at the bottom of both the short support leg 9 and the long support leg 8 to better align with site conditions and allow for timely adjustments without being limited by site ground conditions or the height of the front-end conveyor. Furthermore, the adjustable feet 15 are fixedly installed on the ground using expansion bolts.

[0036] Next, the working principle of the conveying device applied to the cold stretch film forming machine involved in the embodiments of this utility model will be explained.

[0037] When the front-end conveyor is loaded with material, the linear speed of the front-end conveyor is the same as that of the conveying device used in the cold stretch film machine, and the material pallet is transferred to the conveying device of this application.

[0038] The conveyor chain on the drive beam is powered by a drive motor, which in turn drives the entire conveyor chain through the drive sprocket.

[0039] On the one hand, the conveyor chain mainly pulls the material pallet to the conveying device of this application. On the other hand, the combination of long rollers and short rollers makes the multiple film collection mechanisms of the film wrapping machine closer to the material pallet, preventing the film from being torn during the film wrapping process. It can also provide support for the material pallet and prevent the material pallet from deforming.

[0040] Due to the inherent structure of the long and short rollers, the film cannot remain on the roller surface, therefore the conveying device of this application will not damage the film.

[0041] In summary, this application, by placing the conveying device among multiple film collection mechanisms of a film coating machine, includes a drive beam, long rollers, and short rollers. The drive beam is connected to a conveyor chain via multiple idler sprockets, which drives the material tray to move along a first direction. Two sets of long rollers are symmetrically arranged on both sides of the middle of the drive beam. Four sets of short rollers are arranged, with two sets symmetrically arranged on both sides of the first end of the drive beam and the other two sets symmetrically arranged on both sides of the second end of the drive beam. The long and short rollers assist the material tray in moving along the first direction. The drive beam, the two sets of long rollers, and the four sets of short rollers are all arranged along the first direction. In this configuration, materials can be smoothly connected without waiting on the front-end conveyor. Slippage does not occur during material connection, and the film is not damaged, significantly improving the stability and operating cycle of the overall production line.

[0042] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A conveying device for use in a cold stretch film forming machine, located between multiple film collecting mechanisms (1) of the film forming machine, characterized in that, The conveying device used in the cold stretch film forming machine includes: A drive beam (11) is connected to a conveyor chain (14) by a plurality of idler sprockets (10), the conveyor chain (14) being used to drive the material pallet (13) to move along a first direction; Two sets of long rollers (3) are symmetrically arranged on both sides of the middle of the drive beam (11); and Short rollers (6) are in four groups, two of which are symmetrically arranged on both sides of the first end of the drive beam (11), and the other two are symmetrically arranged on both sides of the second end of the drive beam (11). The long roller (3) and the short roller (6) are used to assist the material tray (13) in moving along the first direction; the drive beam (11), the two sets of long rollers (3) and the four sets of short rollers (6) are all arranged along the first direction.

2. The conveying device for a cold stretch film forming machine according to claim 1, characterized in that, The drive beam (11) is mounted on two sets of long legs (8) and two sets of short legs (9) by fixed angle iron (12), and the two sets of short legs (9) are located on the outside of the two sets of long legs (8).

3. The conveying device for a cold stretch film forming machine according to claim 2, characterized in that, The conveyor chain (14) is powered by a drive sprocket (17) meshing with it, and the drive sprocket (17) is connected to a drive motor (16) mounted on the long support leg (8).

4. The conveying device for a cold stretch film forming machine according to claim 3, characterized in that, The drive sprocket (17) is connected to the drive motor (16) via a key, a set screw, and a locking plate to prevent axial and radial movement.

5. The conveying device for a cold stretch film forming machine according to claim 2, characterized in that, The long roller (3) is connected to the long support leg (8) via the long roller mounting sheet metal (2), and the short roller (6) is connected to the short support leg (9) via the short roller mounting sheet metal (5).

6. The conveying device for a cold stretch film forming machine according to claim 5, characterized in that, The short support leg (9) and the long support leg (8) are fixed together by a support leg connecting beam (4).

7. The conveying device for a cold stretch film forming machine according to claim 5, characterized in that, The long roller mounting sheet metal (2) and the short roller mounting sheet metal (5) are fixed together by sheet metal connecting angle iron (7).

8. The conveying device for a cold stretch film forming machine according to claim 2, characterized in that, The bottom of both the short support leg (9) and the long support leg (8) is equipped with an adjusting foot plate (15) for adjusting the height.

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