Height adjusting device for conveying belt of conveying channel of packaging machine

Abstract

The utility model relates to the technical field of cigarette production, in particular to a height adjusting device for a conveyor belt of a conveying channel of a packaging machine, which comprises a connecting seat, an independent support and a lifting component, vertical plates are arranged on the two sides of the connecting base, and an upper transmission wheel is installed between the vertical plates on the two sides. The independent support is located at one end of the connecting base and slidably connected with the connecting base in the vertical direction, a lower transmission wheel is installed at the end, away from the connecting base, of the independent support, and a conveying belt is wound around the upper transmission wheel and the lower transmission wheel; the lifting assembly is fixedly installed on the connecting base, connected with the independent support and capable of driving the independent support and the lower transmission wheel to ascend and descend. The height of the conveying belt of the conveying channel can be rapidly and accurately adjusted in a labor-saving mode, the adjusting efficiency is improved, and the conveying channel can be conveniently cleaned to extrude cigarette packets.

Description

Technical Field

[0001] This utility model relates to the field of cigarette production technology, and in particular to a height adjustment device for the conveyor belt of a packaging machine. Background Technology

[0002] The ZB45 packaging machine is a major model in cigarette production equipment, mainly composed of a main unit (YB45 hard-pack packaging machine) and auxiliary units (YB55 small-pack transparent paper packaging machine, YB65 carton paper packaging machine). The cigarette pack conveyor channel is approximately 3 meters long, consisting of upper and lower guard plates and a conveyor belt, which clamps and continuously transports the cigarette packs forward. Its function is to better solidify the glue on both sides of the qualified cigarette packs formed by the main unit (YB45) and convey them to the auxiliary units for transparent paper packaging. However, during production, it was found that the ZB45 packaging machine frequently experiences blockages in the cigarette pack conveyor channel and belt slippage, causing system downtime. This not only affects the machine's operating efficiency but also poses potential packaging quality risks, resulting in waste of product and raw materials. Due to the large number of cigarette packs in the conveyor channel, the vertical spacing of the conveyor belt is critical. The conveyor belt height is controlled by the inlet support and the middle support plate of the conveyor channel, and it lacks height adjustment functionality. If the vertical spacing of the conveyor belt does not match the width of the cigarette packs, it can easily lead to cigarette squeezing or pack deformation, causing conveyor belt transmission failure. Currently, the adjustment method involves adding shims or paper pieces between the support and connecting seat at the entrance of the conveyor belt to change the vertical spacing of the conveyor belt, but this method cannot provide precise adjustment and control.

[0003] The following problems exist in actual adjustments: First, the adjustment time is relatively long. Adjustment requires loosening the bolts of the support and connecting seats, having two maintenance workers lift the conveyor channel upwards, adding shims to the support seats, and finally tightening the bolts. If the dimensions are not suitable, additional paper strips need to be added for further adjustment, taking up to 20 minutes and affecting equipment operating efficiency. Second, the adjustment is inaccurate and cannot be quantitatively adjusted. It relies on experience to add shims and paper strips, and stepless adjustment cannot be achieved, resulting in high labor intensity for maintenance workers. Third, cleaning the cigarette packs is difficult when they are being squeezed, requiring force to pull them out. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model embodiment is to provide a height adjustment device for the conveyor belt of a packaging machine, which enables rapid, accurate, and labor-saving adjustment of the conveyor belt height, improves adjustment efficiency, and facilitates cleaning of compressed cigarette packs in the conveyor channel.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A height adjustment device for a conveyor belt in a packaging machine includes: a connecting seat, an independent support, and a lifting assembly; the connecting seat has upright plates on both sides, and an upper drive wheel is installed between the two upright plates; the independent support is located at one end of the connecting seat and is slidably connected to the connecting seat in the vertical direction, and a lower drive wheel is installed at the end of the independent support away from the connecting seat; a conveyor belt is wound around the upper drive wheel and the lower drive wheel; the lifting assembly is fixedly installed on the connecting seat, and the lifting assembly is connected to the independent support and can drive the independent support and the lower drive wheel to rise and fall.

[0007] Optionally, the end of the upright plate is provided with a boss, and the end of the independent support facing the connecting seat is provided with a groove, and the boss of the connecting seat is embedded in the groove of the independent support.

[0008] Optionally, the independent support is provided with a sliding groove hole, which communicates with the groove and is an elongated hole arranged vertically. The end face of the connecting seat facing the independent support is provided with a threaded hole, and a fixing bolt is installed in the sliding groove hole. The inner end of the fixing bolt is installed in the threaded hole of the connecting seat.

[0009] Optionally, the side of the upright plate is provided with a scale, which is arranged vertically and can be used to mark the lifting height of the independent support and the lower drive wheel.

[0010] Optionally, the lifting assembly includes a fixed plate and a transmission gear set. The fixed plate has two layers, wherein the lower fixed plate is detachably mounted on the connecting seat, and the transmission gear set is located between the two fixed plates. The lower end of the transmission gear set passes through the lower fixed plate and is connected to the independent support.

[0011] Optionally, the top surface of the connector is provided with a mounting hole, which is a threaded hole, and the fixing plate is provided with a through hole, and the connector is installed on the threaded hole of the connector by passing a screw through the through hole of the fixing plate.

[0012] Optionally, a support sleeve is provided between the two fixing plates to separate the two fixing plates, thereby forming a receiving cavity for accommodating the transmission gear set.

[0013] Optionally, the transmission gear set includes a driving gear and driven gears. There are two driven gears, which are located on both sides of the driving gear and mesh with it.

[0014] Optionally, the gear shaft of the drive gear extends through the upper fixing plate, and a disc handle is mounted on the gear shaft.

[0015] Optionally, the gear shaft of the driven gear extends through the lower fixing plate, and the lower end of the gear shaft of the driven gear is an adjusting screw. The top surface of the independent support has a threaded hole, and the adjusting screw is installed in the threaded hole of the independent support.

[0016] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0017] The adjustment device of this utility model mainly consists of a connecting seat, an independent support, and a lifting assembly. The connecting seat has upright plates on both sides, with an upper transmission wheel (i.e., the first and second transmission wheels) installed between the plates. The independent support is located at one end of the connecting seat, and the two are slidably connected in the vertical direction. A lower transmission wheel is installed at the end of the independent support away from the connecting seat. The upper and lower transmission wheels are connected by a conveyor belt, thus forming a complete cigarette pack conveying channel. The lifting assembly is fixed to the connecting seat and connected to the independent support, and can drive the independent support and the lower transmission wheel to achieve lifting and lowering movements through a transmission mechanism. This adjustment device eliminates the reliance on traditional, cumbersome methods for adjusting the conveyor belt height, overcoming the drawbacks of time-consuming and labor-intensive adjustments, low precision, inability to quantitatively adjust steplessly, and inconvenient cleaning of blockages. It achieves rapid, precise, and stepless adjustment of the conveyor belt height, significantly shortening adjustment time (e.g., from 20 minutes to just a few minutes), reducing the labor intensity of maintenance workers (allowing for convenient single-person operation), and facilitating quick cleaning when cigarette packs are squeezed and blocked, thereby improving the operating efficiency, stability, and maintenance convenience of the packaging machine.

[0018] Additional advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. Furthermore, the spacing or dimensions between components are exaggerated to show their positions; the schematic diagrams are for illustrative purposes only.

[0020] Figure 1 This is a schematic diagram of a tobacco pack conveying channel in the prior art;

[0021] Figure 2 This is a schematic diagram of the conveyor belt support section in the existing technology.

[0022] Figure 3 This is a schematic diagram of the inlet section of a conveyor belt in a conventional conveyor channel.

[0023] Figure 4 This is an exploded view of the conveyor belt height adjustment device provided in this embodiment of the utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the conveyor belt height adjustment device provided in this embodiment of the utility model;

[0025] In the diagram: 1. Upper guard plate; 2. Lower guard plate; 3. Conveyor belt; 4. Conveyor belt inlet; 5. Support base; 6. Connecting base; 7. First drive wheel; 8. Second drive wheel; 9. Lower drive wheel; 10. Deviation adjustment screw; 11. Inlet cover plate; 12. Independent support; 13. Boss; 14. Vertical plate; 15. Groove; 16. Disc handle; 17. Adjusting screw; 18. Transmission gear set; 19. Slide hole; 20. Fixing bolt; 21. Fixing plate; Detailed Implementation

[0026] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the cigarette pack conveyor channel is approximately 3 meters long and consists of an upper guard plate 1, a lower guard plate 2, and a conveyor belt 3, which continuously conveys the cigarette packs forward. The height of the conveyor belt 3 is controlled by the support seat 5 at the conveyor belt inlet 4 and the intermediate support plate of the conveyor channel. A deviation adjustment screw 10 is installed on the end face of the connecting seat 6 to correct any possible deviation of the conveyor belt 3 during operation. An inlet cover plate 11 is also installed on the underside of the connecting seat 6.

[0028] This embodiment improves the connecting seat 6 and adds an independent support 12 and a transmission part. The original connecting seat 6 structure is optimized. After the improvement, the connecting seat 6 retains the connection between the first transmission wheel 7 and the second transmission wheel 8, and the deviation adjustment screw 10 of the connecting seat 6 is moved outward. The original lower transmission wheel 9 is controlled by the independent support 12. The independent support 12 and the connecting seat 6 can slide up and down, and the scale is marked on the upright plate 14.

[0029] Specifically, such as Figure 4 , Figure 5As shown, a height adjustment device for a packaging machine conveyor belt 3 includes: a connecting seat 6, an independent support 12, and a lifting assembly; the connecting seat 6 has upright plates 14 on both sides, and an upper transmission wheel (i.e., a first transmission wheel 7 and a second transmission wheel 8) is installed between the two upright plates 14; the independent support 12 is located at one end of the connecting seat 6 and is slidably connected to the connecting seat 6 in the vertical direction, and a lower transmission wheel 9 is installed at the end of the independent support 12 away from the connecting seat 6, and a conveyor belt 3 is wound on the upper transmission wheel and the lower transmission wheel 9; the lifting assembly is fixedly installed on the connecting seat 6, and the lifting assembly is connected to the independent support 12 and can drive the independent support 12 and the lower transmission wheel 9 to rise and fall.

[0030] The connecting seat 6 provides stable support for the upper drive wheel. The vertical sliding connection between the independent support 12 and the connecting seat 6 enables the vertical lifting of the lower drive wheel 9. The lower drive wheel 9 is precisely lifted through mechanical transmission, avoiding manual lifting of the channel, significantly reducing labor intensity and shortening adjustment time (from 20 minutes to 3 minutes). Moreover, when cleaning the smoke, the height of the conveyor belt 3 can be adjusted, the smoke pack can be removed, and then the pack can be reset according to the height, which is convenient for maintenance work.

[0031] The end of the upright plate 14 is provided with a boss 13, and the end of the independent support 12 facing the connecting seat 6 is provided with a groove 15. The boss 13 of the connecting seat 6 is embedded in the groove 15 of the independent support 12.

[0032] The boss 13 is embedded in the groove 15 to form a guide rail, ensuring that the independent support 12 slides only in the vertical direction, avoiding deviation during the lifting process. The contact surface between the groove 15 and the boss 13 increases the force-bearing area, enhancing the stability of the connection. This ensures that the independent support 12 and the connecting seat 6 can maintain a reliable connection during the adjustment of the height of the conveyor belt 3 and the daily conveying of cigarette packs, preventing loosening or displacement, and ensuring the stable operation of the entire conveying channel.

[0033] The independent support 12 is provided with a sliding groove hole 19, which is connected to the groove 15. The sliding groove hole 19 is an elongated hole arranged vertically. The end face of the connecting seat 6 facing the independent support 12 is provided with a threaded hole. A fixing bolt 20 is installed in the sliding groove hole 19, and the inner end of the fixing bolt 20 is installed in the threaded hole of the connecting seat 6.

[0034] The elongated hole provides sufficient vertical space for the fixing bolt 20 to slide within, thereby enabling the independent support 12 to be raised and lowered. The fixing bolt 20, installed in the sliding hole 19, is mounted in the threaded hole of the connecting seat 6. This not only ensures a stable connection between the independent support 12 and the connecting seat 6, but also allows the independent support 12 to slide vertically by loosening the fixing bolt 20 when adjusting the height of the conveyor belt 3. After adjustment, the fixing bolt 20 is tightened again, achieving quick and precise fixing. This structure effectively solves the problems of inconvenient, time-consuming, and labor-intensive adjustment, improves adjustment efficiency, reduces the labor intensity of maintenance workers, and also ensures the accuracy and reliability of adjustment, avoiding problems such as cigarette pack compression or deformation caused by improper adjustment.

[0035] The side of the upright plate 14 is provided with graduations, which are arranged vertically. It is important to note that the graduations should be located on the outer side for easy observation. The graduations visually indicate the lifting height of the independent support 12 and the lower drive wheel 9. When adjusting the height of the conveyor belt 3, the operator can use the graduations for precise positioning, achieving stepless quantitative adjustment. This avoids the inaccuracies caused by relying on experience, greatly improving adjustment accuracy and reducing quality problems such as cigarette pack compression or deformation due to improper adjustment.

[0036] like Figure 4 As shown, the lifting assembly includes a fixed plate 21 and a transmission gear set 18. The fixed plate 21 has two layers, with the lower fixed plate 21 detachably mounted on the connecting seat 6. The transmission gear set 18 is located between the two fixed plates 21, and its lower end passes through the lower fixed plate 21 and connects to the independent support 12. This arrangement allows the lifting assembly to be stably mounted on the connecting seat 6, and through the transmission action of the transmission gear set 18, it can effectively drive the independent support 12 to rise and fall, realizing flexible adjustment of the height of the conveyor belt 3 while ensuring the smoothness and reliability of the adjustment process.

[0037] The top surface of the connecting seat 6 is provided with a mounting hole, which is a threaded hole, and the fixing plate 21 has a through hole. When installing the fixing plate 21, a screw passes through the through hole of the fixing plate 21 and is screwed into the threaded hole of the connecting seat 6, thereby achieving a stable installation of the fixing plate 21 on the connecting seat 6. This method facilitates the quick removal of the fixing plate 21 from the connecting seat 6 when it is necessary to disassemble or maintain the lifting assembly, improving the convenience of equipment maintenance, while also ensuring the connection strength between the fixing plate 21 and the connecting seat 6.

[0038] A support sleeve is provided between the two fixing plates 21. The main function of the support sleeve is to separate the two fixing plates 21, thereby forming a receiving cavity for accommodating the transmission gear set 18. This receiving cavity provides a stable installation space for the transmission gear set 18, allowing the transmission gear set 18 to smoothly perform transmission actions within it without being disturbed by external factors. This ensures the transmission accuracy and stability of the transmission gear set 18 and extends its service life.

[0039] The transmission gear set 18 includes a driving gear and a driven gear. There are two driven gears, which are located on both sides of the driving gear and mesh with the driving gear.

[0040] When the driving gear rotates, it can drive the two driven gears to rotate synchronously through meshing. This design achieves effective power transmission and distribution, ensuring that the two driven gears can rotate at the same speed and direction. It has the advantages of smooth transmission, high transmission accuracy, high transmission efficiency, strong load-bearing capacity, and simple structure, thereby ensuring the synchronous action of the subsequent adjusting screw 17, and thus realizing the smooth and uniform lifting of the independent support 12, improving the quality and efficiency of the height adjustment of the conveyor belt 3.

[0041] The gear shaft of the drive gear (connected to the drive gear via a flat key) extends through the upper fixed plate 21, and a disc handle 16 is mounted on the gear shaft. The operator rotates the disc handle 16 to drive the drive gear. The design of the disc handle 16 makes operation more effortless and convenient, allowing the operator to easily control the rotational speed and direction of the drive gear, thereby achieving precise adjustment of the height of the conveyor belt 3. The placement of the disc handle 16 also facilitates operation without the need for other complex tools, improving the ease of use of the equipment.

[0042] The gear shaft of the driven gear (connected to the driven gear via a flat key) extends through the lower fixing plate 21, and the lower end of the gear shaft of the driven gear is an adjusting screw 17. The top surface of the independent support 12 has a threaded hole, and the adjusting screw 17 is installed in the threaded hole of the independent support 12.

[0043] When the driven gear rotates, the adjusting screw 17 rotates accordingly, and through its engagement with the threaded hole of the independent support 12, converts the rotational motion into vertical linear motion, thereby driving the independent support 12 and the lower transmission wheel 9 to lift and lower. The threaded drive has many advantages, such as good self-locking, high load capacity, excellent fastening, and simple structure. It ensures that the independent support 12 remains stable during lifting and lowering, solves the problem of the lower transmission wheel 9 of the independent support 12 being difficult to adjust due to the tension of the conveyor belt 3, and can be firmly fixed in the corresponding position after adjustment, ensuring the accuracy and reliability of the height adjustment of the conveyor belt 3.

[0044] Adjustment process:

[0045] When height adjustment is needed, loosen the two fixing bolts 20, then rotate the disc handle 16. This drives the two adjusting screws 17 synchronously via gear transmission. Determine the lifting height of the independent support 12 according to the scale on the vertical plate 14. Simultaneously, the lower transmission wheel 9 moves with the independent support 12. Then tighten the fixing bolts 20 to achieve rapid height adjustment of the conveyor belt 3. This solves the problems of repeated adjustments and experience-based adjustments, eliminating the need for two maintenance workers; one person can quickly complete the adjustment, reducing the labor intensity of maintenance workers and improving adjustment efficiency. When cleaning up cigarette packs, the height can be adjusted, the packs removed, and then the packs reset according to the new height, facilitating maintenance work.

[0046] The height adjustment device for the conveyor belt 3 solves the problems of long adjustment time, inaccurate adjustment, and difficulty in removing the squeezed cigarette packs. It realizes quantitative stepless adjustment of the height, reducing the adjustment time of the conveyor belt 3 from 20 minutes to 3 minutes, improving the adjustment efficiency and reducing the labor intensity of maintenance workers.

[0047] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A packaging machine conveyor tunnel conveyor belt height adjustment device, characterized in that, include: Connecting base, independent support and lifting assembly; The connecting seat has upright plates on both sides, and an upper transmission wheel is installed between the two upright plates; The independent support is located at one end of the connecting seat and is slidably connected to the connecting seat in the vertical direction. A lower transmission wheel is installed at the end of the independent support away from the connecting seat. A conveyor belt is wound on the upper transmission wheel and the lower transmission wheel. The lifting assembly is fixedly installed on the connecting seat, and the lifting assembly is connected to the independent support, and can drive the independent support and the lower transmission wheel to rise and fall.

2. The packaging machine conveyor tunnel conveyor belt height adjustment apparatus of claim 1, wherein, The upright plate has a boss on one end, and the independent support has a groove at one end facing the connecting seat. The boss of the connecting seat is embedded in the groove of the independent support.

3. The packaging machine conveyor tunnel conveyor belt height adjustment apparatus of claim 2, wherein, The independent support is provided with a sliding groove hole, which is connected to the groove. The sliding groove hole is an elongated hole arranged vertically. The end face of the connecting seat facing the independent support is provided with a threaded hole. A fixing bolt is installed in the sliding groove hole, and the inner end of the fixing bolt is installed in the threaded hole of the connecting seat.

4. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 2, wherein, The side of the upright plate is provided with a scale, which is arranged vertically and can be used to mark the lifting height of the independent support and the lower drive wheel.

5. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 1, wherein, The lifting assembly includes a fixed plate and a transmission gear set. The fixed plate has two layers, wherein the lower fixed plate is detachably installed on the connecting seat, and the transmission gear set is located between the two fixed plates. The lower end of the transmission gear set passes through the lower fixed plate and is connected to the independent support.

6. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 5, wherein, The top surface of the connector is provided with a mounting hole, which is a threaded hole. The fixing plate is provided with a through hole, and the connector is installed on the threaded hole of the connector by passing a screw through the through hole of the fixing plate.

7. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 5, wherein, A support sleeve is provided between the two fixed plates to separate the two fixed plates, thereby forming a receiving cavity for accommodating the transmission gear set.

8. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 5, wherein, The transmission gear set includes a driving gear and driven gears. There are two driven gears, which are located on both sides of the driving gear and mesh with it.

9. The packaging machine conveyor lane conveyor belt height adjustment apparatus of claim 8, wherein, The gear shaft of the drive gear extends through the upper fixed plate, and a disc handle is mounted on the gear shaft.

10. The packaging machine conveyor lane conveyor belt height adjustment apparatus as claimed in claim 8, wherein, The driven gear's gear shaft extends through the lower fixing plate, and the lower end of the driven gear's gear shaft is an adjusting screw. The top surface of the independent support has a threaded hole, and the adjusting screw is installed in the threaded hole of the independent support.

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