A Quick Adjustment Device for the First Wheel of a Packaging Machine

Abstract

The present invention discloses a quick adjustment device for the first wheel of a packaging machine, which relates to the technical field of packaging machines and comprises a column, a support, a plurality of adjustable embossing bolts, a driving flange, a fixed pin shaft, a spring, a rotating shaft, a connecting plate, a handle, a rotating sleeve, a plurality of connecting screws and a plurality of locking set screws, etc. During operation, the adjustment device is clamped to a bench vise or fixedly installed in a square groove, and the first wheel set is installed on one side of the adjustment device. The circular ring on the driving flange of the quick adjustment device can flatten the end face of the dial shaft to the same plane during the installation process, ensuring that the wheel set can work smoothly without jamming. During the rotation of the rotating shaft, it extends outwards under the action of the elastic force of the spring, so that the convex platform fits into the groove at the end face of the conjugate cam set of the wheel set. When the rotating shaft is rotated continuously, the clamping action of the clamping claws can be realized, solving the problems actually encountered in work and greatly improving the maintenance efficiency of the wheel set.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machines, and in particular relates to a quick adjustment device for a first wheel of a packaging machine. Background Art

[0002] During the cigarette production process, in order to ensure the stability of equipment operation, the No. 1 wheel assembly of the packaging machine needs to be maintained and serviced regularly. The maintenance method is usually to manually disassemble the No. 1 wheel assembly, clean and maintain it or repair it, and then manually install it on the equipment. The entire process of dismantling, replacing, installing and debugging is labor-intensive and time-consuming, which is extremely unfavorable to production cost control and improvement of production efficiency. Since manual installation requires high maintenance experience and skills, improper installation may easily lead to uneven shifting shafts, which may lead to improper correction of the cigarette clamping claws, jamming after installation, etc., and may also easily lead to quality problems of cigarette products. At the same time, if the positioning adjustment is improper during the installation and adjustment process, the No. 1 wheel assembly may easily move axially during production, which greatly affects the quality of cigarette production. Therefore, it is urgent to design a quick adjustment device for the No. 1 wheel of a packaging machine to solve the above-mentioned problem of improper installation. Summary of the invention

[0003] The purpose of the present invention is to provide a quick adjustment device for the first wheel of a packaging machine, so as to overcome the problem of machine jamming in production caused by uneven installation of the shifting shaft and thus the inadequate correction of the cigarette clamping claw, accurately position the shifting shaft, prevent axial movement of the wheel assembly, avoid repeated adjustments, and save maintenance time. The specific technical solution is as follows:

[0004] A packaging machine first wheel quick adjustment device, comprising:

[0005] The column is fixed on the bench vise;

[0006] A support, which is fastened and mounted on the column by means of adjustable knurled bolts;

[0007] A driving flange is mounted on the support via a fixing pin;

[0008] A driving handle component is rotatably mounted on one side of the driving flange, an elastic clamping component is provided inside the driving flange, the elastic clamping component runs through the driving flange, one end of the elastic clamping component is fixedly connected to the driving handle component, and the other end is connected to the number one wheel set;

[0009] The elastic clamping component includes a spring and a rotating shaft. The rotating shaft penetrates through the center of the driving flange. The spring is sleeved on the rotating shaft. A boss is provided at one end of the rotating shaft, and the other end is fixedly connected to the driving handle component. By driving the driving handle component, the rotating shaft is driven to rotate. One end of the spring abuts against the inner bottom surface of the driving flange, and the other end abuts against the bottom surface of the boss.

[0010] The first wheel set includes a frame, a clamping jaw assembly, and a jaw driving assembly. More than one group of the clamping jaw assemblies are provided on the frame. The jaw driving assembly drives the clamping jaw assembly to perform an opening and closing movement. A collective driving flange is provided on one side of the frame. The collective driving flange is installed on the end surface of the driving flange through fixing screws. The jaw driving assembly is arranged inside the collective driving flange and is driven by a conjugate cam group. The conjugate cam group is rotatably arranged at the center position of the collective driving flange. A groove for cooperating with the boss is provided at the end of the conjugate cam group. By driving the driving handle component, the boss is inserted into the groove, and then driving the driving handle component further drives the opening and closing movement of the clamping jaws.

[0011] Preferably, the clamping jaw assembly includes a first clamping jaw and a second clamping jaw. The first clamping jaw and the second clamping jaw are rotatably arranged on the frame. A first shifting shaft and a second shifting shaft are respectively led out from the rotation axes of the first clamping jaw and the second clamping jaw. The first shifting shaft is fixedly connected to the first clamping jaw, and the second shifting shaft is fixedly connected to the second clamping jaw.

[0012] Preferably, the jaw driving assembly includes a first connecting rod and a second connecting rod. The first connecting rod is provided on the first shifting shaft, and the second connecting rod is provided on the second shifting shaft. Rollers are provided at the free ends of the first connecting rod and the second connecting rod.

[0013] Preferably, four groups of the clamping jaw assemblies and the jaw driving assemblies are equidistantly distributed on the first wheel set. The conjugate cam group is provided at the center surrounded by the jaw driving assemblies. The circumferential surface of the conjugate cam group abuts against the rollers, and the rollers are in rolling contact with the conjugate cam group. The first shifting shaft, the second shifting shaft, the first connecting rod, the second connecting rod, and the rollers are arranged inside the collective driving flange. The conjugate cam group is rotatably arranged at the center of the collective driving flange. By rotating the conjugate cam group, the first connecting rod and the second connecting rod are driven to rotate, so that each clamping jaw assembly is linked to perform an opening and closing movement.

[0014] Preferably, a circular ring is provided at the connection end of the driving flange and the first wheel set. The circular ring abuts against the end faces of the first shifting shaft and the second shifting shaft, so that the end faces of the shifting shafts are in the same plane.

[0015] Preferably, the driving handle component includes a connecting plate, a handle, a rotating sleeve and a connecting screw. The rotating sleeve is fixedly installed at the center of the driving flange. The rotating shaft passes through the rotating sleeve and is connected to the connecting plate through the connecting screw. One end of the connecting plate is rotatably arranged on the rotating sleeve, and the other end is provided with the handle. The rotating shaft is driven to rotate by driving the handle.

[0016] Preferably, 4 pin holes are evenly arranged on the circumferential surface of the driving flange, and the included angle between the pin holes is 90°.

[0017] Preferably, the boss is eccentrically arranged on the end face of the rotating shaft.

[0018] Preferably, a threaded hole is arranged on the end face of the driving flange, and a locking set screw is arranged on the threaded hole. The tail end of the locking set screw abuts against the spring.

[0019] Preferably, when the circular ring abuts against the first shift shaft and the second shift shaft, the axes of the first shift shaft and the second shift shaft are distributed within the range of the circular ring.

[0020] Compared with the existing technology, the present invention has the following beneficial effects:

[0021] 1. In a quick adjustment device for the first wheel of a packaging machine in the present invention, the circular ring on the driving flange of the quick adjustment device can flatten the end face of the shift shaft to the same plane during the installation process, ensuring that the wheel set can work smoothly without jamming. During the rotation of the rotating shaft, under the action of the elastic force of the spring, it extends outwards, so that the boss fits into the groove on the end face of the conjugate cam set of the wheel set. When the rotating shaft is further rotated, the clamping action of the clamping claw can be realized.

[0022] 2. In the present invention, the boss arranged on the end face of the rotating shaft is eccentrically distributed, which just corresponds to the groove on the conjugate cam set in the first wheel set and is in close contact with the end face of the shift shaft, realizing the axial positioning of the shift shaft and preventing axial movement between the first wheel set and the adjustment device.

[0023] 3. In the present invention, the first wheel set is a four-station packaging wheel. During calibration, the four stations need to be calibrated separately. This design adopts an overall calibration method, fixing the driving flange and the first wheel set into an integral body. When adjustment is needed, only by flipping the driving flange, aligning the pin holes on the driving flange with the pin holes on the support, and connecting them with fixed pin shafts. The included angle between each station is 90°.

[0024] 4. In the present invention, the support is locked to the column by two knurled screws. The operator can rotate the wheel set and the adjustment device 360° according to the angle standing on the workbench. After adjustment, lock it with the knurled screws, which is convenient and fast.

[0025] 5. In the present invention, the rotating shaft can adjust the tightness and length of the spring by adjusting two locking set screws at the rear end of the flange according to the telescopic degree of the spring, and no further adjustment is required later.

[0026] 6. The present invention solves the problems actually encountered in work, greatly improves the efficiency of the maintenance operation of the first wheel set. At the same time, the adjustment device has a low processing cost and high practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 is a schematic diagram of the structure of the first wheel set of the present invention.

[0030] Figure 3 is a schematic diagram of the structure of the conjugate cam group of the present invention.

[0031] Figure 4 is a schematic diagram of the structure of the drive flange of the present invention.

[0032] Figure 5 is a schematic diagram of the structure of the rotating shaft of the present invention.

[0033] Main reference numeral description:

[0034] 1 - column, 2 - support, 3 - adjustable knurled bolt, 4 - drive flange, 5 - fixed pin shaft, 6 - first wheel set, 7 - spring, 8 - rotating shaft, 9 - boss, 10 - frame, 11 - collective drive flange, 12 - fixing screw, 13 - conjugate cam group, 14 - groove, 15 - first jaw, 16 - second jaw, 17 - first shift shaft, 18 - second shift shaft, 19 - first connecting rod, 20 - second connecting rod, 21 - roller, 22 - ring, 23 - connecting plate, 24 - handle, 25 - rotating sleeve, 26 - connecting screw, 27 - pin hole, 28 - locking set screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top part", "bottom part", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If terms such as "first", "second", "third" are described only for the purpose of description and distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention. Embodiment

[0039] As Figures 1 to 5 shown, a quick adjustment device for the first wheel of a packaging machine. The adjustment device is composed of a column 1, a support 2, several adjustable embossing bolts 3, a driving flange 4, a fixed pin shaft 5, a spring 7, a rotating shaft 8, a connecting plate 23, a handle 24, a rotating sleeve 25, several connecting screws 26 and several locking set screws 28, etc. During operation, the adjustment device is clamped to a bench vice or fixedly installed in a square groove, and the first wheel set 6 is installed on one side of the adjustment device. The specific structural analysis is as follows:

[0040] Mount the support 2 on the column 1 by locking it with adjustable knurled bolts 3. In this application, there are two adjustable knurled bolts 3, which are arranged at a certain angle respectively. The support 2 can be rotated and adjusted on the column 1, and rotated and adjusted according to the angle required during operation to facilitate the operation of the operator better;

[0041] The support 2 is provided with pin holes 27. The circumferential surface of the drive flange 4 is evenly provided with 4 pin holes 27. The included angle between the pin holes 27 is 90°. The drive flange 4 is mounted on the support 2 through a fixing pin 5, so that the jaws on the first wheel set 6 can be adjusted in four working positions;

[0042] In this utility model, the drive handle component is rotatably mounted on one side of the drive flange 4. An elastic clamping component is arranged inside the drive flange 4. The elastic clamping component penetrates through the drive flange 4. One end of the elastic clamping component is fixedly connected to the drive handle component, and the other end is connected to the first wheel set 6. The elastic clamping component includes a spring 7 and a rotating shaft 8. The rotating shaft 8 penetrates through the center of the drive flange 4. The spring 7 is sleeved on the rotating shaft 8. A boss 9 is arranged at one end of the rotating shaft 8, and the other end is fixedly connected to the drive handle component. By driving the drive handle component to drive the rotating shaft 8 to rotate, one end of the spring 7 abuts against the inner bottom surface of the drive flange 4, and the other end abuts against the bottom surface of the boss 9. Specifically, the drive handle component includes a connecting plate 23, a handle 24, a rotating sleeve 25 and a connecting screw 26. The rotating sleeve 25 is fixedly installed at the center position of the drive flange 4. The rotating shaft 8 passes through the rotating sleeve 25 and is connected to the connecting plate 23 through the connecting screw 26. One end of the connecting plate 23 is rotatably arranged on the rotating sleeve 25, and the other end is provided with the handle 24. By driving the handle 24 to drive the rotating shaft 8 to rotate;

[0043] In this utility model, a threaded hole is arranged on the end face of the drive flange 4, and a locking set screw 28 is arranged on the threaded hole. The tail end of the locking set screw 28 abuts against the spring 7. By adjusting the screwing in or out of the locking set screw 28, the elastic force of the spring 7 can be adjusted.

[0044] In this utility model, the first wheel set 6 includes a frame 10, a clamping jaw assembly, and a jaw driving assembly. More than one set of the clamping jaw assemblies are provided on the frame 10. In this design, four sets of the clamping jaw assemblies and the jaw driving assemblies are evenly distributed on the first wheel set 6. The jaw driving assembly is used to drive the clamping jaw assembly to perform opening and closing movements. A collective driving flange 11 is provided on one side of the frame 10. The collective driving flange 11 is installed on the end face of the driving flange 4 through fixing screws 12. The jaw driving assembly is assembled in the collective driving flange 11 and is driven by a conjugate cam set 13. The conjugate cam set 13 is rotatably arranged at the center position of the collective driving flange 11. A groove 14 matching with the boss 9 is provided at the end of the conjugate cam set 13. By driving the driving handle component, the boss 9 is inserted into the groove 14. (The specific operation steps are: rotate the driving handle component until the boss 9 is successfully matched with the convex groove 14. The rotating shaft 8 is pushed forward under the elastic force of the spring 7, so that the boss 9 is inserted into the groove 14 to complete the matching). Among them, the boss 9 is eccentrically arranged on the end face of the rotating shaft 8. When the boss 9 and the groove 14 are matched and engaged with each other, continue to drive the driving handle component to drive the opening and closing movement of the clamping jaw;

[0045] In this utility model, the clamping jaw assembly includes a first clamping jaw 15 and a second clamping jaw 16. The first clamping jaw 15 and the second clamping jaw 16 are rotatably arranged on the frame 10. A first shifting shaft 17 and a second shifting shaft 18 are respectively led out from the rotation axes of the first clamping jaw 15 and the second clamping jaw 16 for rotation. Moreover, the first shifting shaft 17 is fixedly connected to the first clamping jaw 15, and the second shifting shaft 18 is fixedly connected to the second clamping jaw 16. By rotating the first shifting shaft 17 and the second shifting shaft 18, the first clamping jaw 15 and the second clamping jaw 16 can be made to move closer to or away from each other, that is, to perform opening and closing movements;

[0046] The jaw driving assembly includes a first connecting rod 19 and a second connecting rod 20. The first connecting rod 19 is provided on the first shifting shaft 17, and the second connecting rod 20 is provided on the second shifting shaft 18. A roller 21 is provided at the free ends of the first connecting rod 19 and the second connecting rod 20. A conjugate cam group 13 is provided at the center surrounded by the jaw driving assembly. Corresponding tracks are provided on the conjugate cam group 13. The rollers 21 on different connecting rods are distributed on different movement tracks, and the rollers 21 are in rolling contact with the peripheral surface of the conjugate cam assembly 13. The first shifting shaft 17, the second shifting shaft 18, the first connecting rod 19, the second connecting rod 20 and the roller 21 are provided in the collective driving flange 11, and the conjugate cam group 13 is rotatably provided at the center of the collective driving flange 11. By rotating the conjugate cam group 13, the first connecting rod 19 and the second connecting rod 20 are driven to rotate so that each clamping jaw assembly is linked to perform an opening and closing movement.

[0047] Further, a circular ring 22 is provided at the connection end of the driving flange 4 and the first wheel set 6. The circular ring 22 abuts against the end faces of the first shifting shaft 17 and the second shifting shaft 18 so that the end faces of the shifting shafts are in the same plane (when the circular ring 22 abuts against the first shifting shaft 17 and the second shifting shaft 18, the axes of the first shifting shaft 17 and the second shifting shaft 18 are distributed within the range of the ring of the circular ring 22).

[0048] Further, in this utility model, 4 pin holes 27 are evenly provided on the peripheral surface of the driving flange 4, and the included angle between the pin holes 27 and the pin holes 27 is 90°. During use, the operator can rotate the driving flange 4 so that a certain pin hole 27 on the driving flange 4 is aligned with the pin hole 4 on the support 2, and the fixed pin shaft 5 is used for connection, so as to realize the overall rotation adjustment of the first wheel set 6, and the clamping jaw operation positions at 1-4 different positions can be conveniently flipped and adjusted.

[0049] Specific operation steps of the quick adjustment device for the first wheel of the packaging machine:

[0050] S1: Clamp the adjustment device to a bench vise or fixedly install it in a square groove, rotate and adjust the whole adjustment device within the 360° rotation range in the horizontal plane according to the operator's operation habit or operation convenience, and lock it with an adjustable knurled bolt;

[0051] S2: Fix and install the first wheel set onto the drive flange through fixing screws. During the installation process, the ring on the end face of the drive flange flattens the shift shaft on the first wheel set used to control the opening and closing of the clamping claws, so that the end face of the shift shaft is in the same plane under the pressing of the ring, which can effectively position and correct the axial direction of the shift shaft, prevent the equipment from jamming due to the unevenness of the shift shaft during operation, and affect the working efficiency and production quality. Gently shake the handle to make the rotating shaft rotate. During the rotation of the rotating shaft, the boss on the rotating shaft searches for the groove on the end face of the conjugate cam set on the first wheel set. When the boss exactly aligns with the groove during the rotation, the rotating shaft extends forward under the elastic force of the spring and engages into the groove;

[0052] S3: Drive the rotating shaft to continue rotating through the handle, and drive the clamping claw assembly on the first wheel set to perform the engaging action. By rotating 90° each time as a whole and following the same sequence, it is convenient to adjust the other three groups of clamping claw assemblies, and so on to complete the adjustment.

[0053] In summary, for a fast adjustment device for the first wheel of a packaging machine in the present invention, the ring on the drive flange of the fast adjustment device can flatten the end face of the shift shaft to the same plane during the installation process, ensuring that the wheel set can work smoothly without jamming. The rotating shaft extends outward under the action of the elastic force of the spring during rotation, so that the boss fits into the groove on the end face of the conjugate cam set of the wheel set. When the rotating shaft continues to rotate, the engaging action of the clamping claws can be realized, which solves the problems actually encountered in work, greatly improves the efficiency of the maintenance operation of the first wheel set. At the same time, the processing cost of this adjustment device is low, and the practical application value brought is high.

[0054] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. Although the embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations, and various different selections and changes that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A quick adjustment device for the first wheel of a packaging machine, characterized in that, Comprising: A column (1), fixed on a bench vice; A support (2), locked and installed on the column (1) by an adjustable knurling bolt (3); A drive flange (4), installed on the support (2) by a fixed pin shaft (5); A drive handle component, rotatably installed on one side of the drive flange (4). An elastic clamping component is provided inside the drive flange (4), the elastic clamping component penetrates through the drive flange (4), one end of the elastic clamping component is fixedly connected to the drive handle component, and the other end is connected to a first wheel set (6); The elastic clamping component includes a spring (7) and a rotating shaft (8). The rotating shaft (8) penetrates through the center of the drive flange (4), the spring (7) is sleeved on the rotating shaft (8), a boss (9) is provided at one end of the rotating shaft (8), and the other end is fixedly connected to the drive handle component. By driving the drive handle component to drive the rotating shaft (8) to rotate, one end of the spring (7) abuts against the inner bottom surface of the drive flange (4), and the other end abuts against the bottom surface of the boss (9); The first wheel set (6) includes a frame (10), a clamping jaw assembly, and a jaw drive assembly. More than one group of the clamping jaw assemblies are provided on the frame (10), the jaw drive assembly drives the clamping jaw assembly to perform an opening and closing movement. A collective drive flange (11) is provided on one side of the frame (10), the collective drive flange (11) is installed on the end face of the drive flange (4) by a fixed screw (12), the jaw drive assembly is arranged inside the collective drive flange (11) and is driven by a conjugate cam group (13). The conjugate cam group (13) is rotatably arranged at the center position of the collective drive flange (11), and a groove (14) for cooperating with the boss (9) is provided at the end of the conjugate cam group (13). By driving the drive handle component to make the boss (9) snap into the groove (14), continue to drive the drive handle component to drive the opening and closing movement of the clamping jaw assembly; The clamping jaw assembly includes a first clamping jaw (15) and a second clamping jaw (16). The first clamping jaw (15) and the second clamping jaw (16) are rotatably arranged on the frame (10). A first dial shaft (17) and a second dial shaft (18) are respectively led out from the rotation axes of the first clamping jaw (15) and the second clamping jaw (16). The first dial shaft (17) is connected to the first clamping jaw (15) in a fixed connection manner, and the second dial shaft (18) is connected to the second clamping jaw (16) in a fixed connection manner; The jaw drive assembly includes a first connecting rod (19) and a second connecting rod (20). The first connecting rod (19) is provided on the first dial shaft (17), the second connecting rod (20) is provided on the second dial shaft (18), and rollers (21) are provided at the free ends of the first connecting rod (19) and the second connecting rod (20); Four groups of the clamping jaw assemblies and jaw driving assemblies are evenly distributed on the first wheel set (6). The conjugate cam group (13) is provided at the center surrounded by the jaw driving assemblies. The circumferential surface of the conjugate cam group (13) abuts against the roller (21). The roller (21) is in rolling contact with the conjugate cam group (13). The first shifting shaft (17), the second shifting shaft (18), the first connecting rod (19), the second connecting rod (20) and the roller (21) are arranged in the collective driving flange (11). The conjugate cam group (13) is rotatably arranged at the center of the collective driving flange (11). By rotating the conjugate cam group (13), the first connecting rod (19) and the second connecting rod (20) are driven to rotate so that each clamping jaw assembly is linked to perform an opening and closing movement; A circular ring (22) is provided at the connecting end of the driving flange (4) and the first wheel set (6). The circular ring (22) abuts against the end faces of the first shifting shaft (17) and the second shifting shaft (18) so that the end faces of the first shifting shaft (17) and the second shifting shaft (18) are in the same plane.

2. The quick adjustment device for the first wheel of a packaging machine according to claim 1, characterized in that The driving handle component includes a connecting plate (23), a handle (24), a rotating sleeve (25) and a connecting screw (26). The rotating sleeve (25) is fixedly installed at the central position of the driving flange (4). The rotating shaft (8) passes through the rotating sleeve (25) and is connected to the connecting plate (23) through the connecting screw (26). One end of the connecting plate (23) is rotatably arranged on the rotating sleeve (25), and the other end is provided with the handle (24). By driving the handle (24), the rotating shaft (8) is driven to rotate.

3. The quick adjustment device for the first wheel of a packaging machine according to claim 1, characterized in that, Four pin holes (27) are evenly provided on the circumferential surface of the driving flange (4). The included angle between the pin holes (27) is 90°.

4. The quick adjustment device for the first wheel of a packaging machine according to claim 1, characterized in that, The boss (9) is eccentrically arranged on the end face of the rotating shaft (8).

5. A quick adjustment device for the first wheel of a packaging machine according to claim 1, characterized in that, Threaded holes are provided on the end face of the driving flange (4). Locking set screws (28) are provided on the threaded holes. The tail ends of the locking set screws (28) abut against the spring (7).

6. The quick adjustment device for the first wheel of a packaging machine according to claim 1, characterized in that When the circular ring (22) abuts against the first shifting shaft (17) and the second shifting shaft (18), the axes of the first shifting shaft (17) and the second shifting shaft (18) are distributed within the range of the ring of the circular ring (22).

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