Wheel train moving mechanism and machine core of packing machine

Abstract

The utility model discloses a wheel train moving mechanism and a machine core of a packing machine, and relates to the technical field of packing machines, the wheel train moving mechanism comprises a machine frame, a linkage piece, a driving unit installed on the machine frame and a swing piece rotationally connected to the machine frame, the driving unit is connected with the swing piece to drive the swing piece to swing, and the linkage piece is connected with the linkage piece. The middle of the linkage piece is rotationally connected to the rack through a first rotating shaft, the two ends of the linkage piece are elastically connected to one end of the swing piece and the rack through elastic pieces correspondingly, and an eccentric wheel is eccentrically arranged on the first rotating shaft; the structure is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of baling machines, in particular to a gear train moving mechanism and a core of the baling machine. Background Art

[0002] The strapping machine is a device that uses strapping tape to strap items. The entire strapping process includes steps such as strapping, unstrapping, strapping, hot bonding, etc. The strapping and unstrapping are realized by the same pair of driving wheels and driven wheels, and the strapping is realized by another pair of driving wheels and driven wheels. Each driven wheel is connected to an eccentric shaft and is driven to move closer to and away from its driving wheel.

[0003] The patent with announcement number CN103086001B discloses a working method of a baling machine movement, wherein the second driven roller is eccentrically mounted on the frame, the upper universal connector is connected to the second swing arm, the reset spring is connected to the second swing arm, and a distance structure is provided between the lower universal connector and the upper universal connector. The upper universal connector is sleeved outside the pull rod, and the distance structure is a spacer sleeve sleeved outside the pull rod. Through the above structural design, the second driven wheel can finally be pressed against or away from the active roller by the pressure belt cam acting on the second swing arm. Obviously, the movement needs to be provided with upper and lower universal connectors, a distance structure, etc. so that the cam can drive the second driven wheel to move, and the structure is relatively complicated. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gear train moving mechanism, which has a simpler structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wheel train moving mechanism comprises: a frame, a linkage member, a driving unit mounted on the frame, and a swinging member rotatably connected to the frame, wherein the driving unit is connected to the swinging member to drive the swinging member to swing, the middle portion of the linkage member is rotatably connected to the frame via a first rotating shaft, the two ends of the linkage member are elastically connected to one end of the swinging member and the frame via elastic members, and an eccentric wheel is eccentrically arranged on the first rotating shaft.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The driving unit of the device drives the swinging member to swing, and the swinging member can drive the linkage member to swing, and the linkage member rotates the first rotating shaft to make the eccentric wheel approach the driving wheel; the device does not need to change the moving direction of the eccentric wheel by setting more universal joints, and the structure is simpler.

[0009] As a preferred solution, a first connecting rod which can be adjusted in a vertical direction is mounted at one end of the swinging member, and the first connecting rod is elastically connected to the swinging member via the elastic member.

[0010] As a preferred solution, the first connecting rod passes through the swinging member and is locked by a nut, one end of the first connecting rod and the linkage member is provided with a locking hook portion, and the elastic member includes a spring and both ends of the spring are respectively hooked on the locking hook portion.

[0011] As a preferred solution, a second connecting rod which can be adjusted in a vertical direction is installed on the frame, and the second connecting rod is elastically connected to the linkage member through the elastic member.

[0012] As a preferred solution, the frame is provided with a plurality of threaded holes which are distributed vertically, and the second connecting rod is threadedly connected in one of the threaded holes.

[0013] As a preferred solution, the linkage member includes two extension sections and an obliquely extending connecting section, and both ends of the connecting section are respectively fixedly connected to the extension sections.

[0014] As a preferred solution, a flat square is provided at one end of the first rotating shaft, and a groove matching the outer contour of the flat square is provided in the middle of the linkage member.

[0015] In view of the deficiencies in the prior art, the utility model also provides a movement of a baling machine, the structure of which is simpler.

[0016] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0017] A movement of a baling machine comprises any one of the above-mentioned gear train moving mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the front of the gear train moving mechanism in the embodiment;

[0019] Figure 2 It is a schematic diagram of the overall structure of the back side of the gear train moving mechanism in the embodiment.

[0020] In the above drawings:

[0021] 1. Frame; 2. Linkage member; 3. Drive unit; 301. Drive shaft; 302. Cam; 4. Swinging member; 5. Driving wheel; 6. First motor; 7. Pin; 8. Elastic member; 9. First connecting rod; 10. Second connecting rod; 11. First rotating shaft; 12. Eccentric wheel. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; the structures described in the various embodiments can be freely combined without any conflict in structure or principle.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] The following is a description of some embodiments of the present invention in conjunction with the accompanying drawings:

[0026] like Figure 1 and Figure 2As shown, the utility model proposes a wheel system moving mechanism, including: a frame 1, a linkage member 2, a driving unit 3 installed on the frame 1, and a swinging member 4 rotatably connected to the frame 1; for example, for ease of understanding, the mechanism is applied to the movement of a baler for explanation, specifically, the frame 1 is rotatably connected to a driving wheel 5 through a rotating shaft, and a first motor 6 is also installed on the frame 1, and the first motor 6 is connected to the driving wheel 5 through a gear transmission to drive the driving wheel 5 to rotate. A pin 7 is fixedly connected to the frame 1, one end of the swinging member 4 is sleeved on the pin 7 and can swing up and down around the pin 7, so that the swinging member 4 is rotatably connected to the frame 1; the driving unit 3 includes a driving shaft 301, a cam 302 and a second motor, wherein the driving shaft 301 is rotatably connected to the frame 1 through a bearing, and the second motor is connected to the driving shaft 301 through a gear transmission, so as to drive the driving shaft 301 to rotate; the cam 302 is sleeved and fixed on the driving shaft 301. Thus, during the rotation of the cam 302, the convex bump on its outer contour pushes the swing member 4 downward, thereby driving the swing member 4 to move downward. The middle part of the linkage member 2 is rotatably connected to the frame 1 through the first rotating shaft 11, and the two ends of the linkage member 2 are elastically connected to one end of the swing member 4 and the frame 1 through the elastic member 8, respectively. The elastic member 8 plays a role in restoring the swing member 4 upward; an eccentric wheel 12 is eccentrically arranged on the first rotating shaft 11.

[0027] With the above solution, the second motor drives the cam 302 to rotate, and the cam 302 drives the swinging member 4 to swing downward, and the swinging member 4 can drive the linkage member 2 to swing, and the linkage member 2 rotates the first rotating shaft 11 to make the eccentric wheel 12 close to the driving wheel 5; when the convex bump of the cam 302 falls off and contacts the swinging member 4, the elastic member 8 drives the linkage member 2 to reverse and reset. The device does not need to set more universal joints to change the moving direction of the eccentric wheel 12, and the driving unit 3 can drive the eccentric wheel 12 close to or away from the driving wheel 5 as needed, and the structure is simpler.

[0028] As a preferred solution, Figure 2 As shown, the linkage member 2 includes two extension sections and an obliquely extending connecting section, and both ends of the connecting section are respectively fixedly connected to the extension sections.

[0029] As a preferred solution, Figure 2As shown, a first connecting rod 9 which can be adjusted in a vertical position is installed at one end of the swing member 4. For example, an external thread is provided on the first connecting rod 9, and an internal thread is provided at one end of the swing member 4. The first connecting rod 9 passes through the swing member 4, and two nuts are sleeved on the first connecting rod 9. The two nuts are respectively located at the upper and lower ends of the swing member 4 to lock the first connecting rod 9 with the swing member 4. This method is convenient for adjusting the vertical position of the first connecting rod 9 and avoiding distortion of the elastic member 8 during the adjustment process. The vertical position of the first connecting rod 9 can be conveniently adjusted by screwing in or out the first connecting rod 9. The first connecting rod 9 is elastically connected to the swing member 4 through the elastic member 8. By adjusting the vertical position of the first connecting rod 9, the vertical distance between the first connecting rod 9 and the right end of the linkage member 2 is reduced or increased, thereby changing the spring force of the elastic member 8.

[0030] As a preferred solution, Figure 2 As shown, in order to make the elastic member 8 more convenient to be installed on the swing member 4 and the linkage member 2, a lock hook portion is provided at one end of the first connecting rod 9 and the linkage member 2. More specifically, the lock hook portion is designed to be a round hole. The elastic member 8 includes a spring and two ends of the spring are provided with hook portions. The upper and lower hook portions are respectively hooked on the lock hook portion (it should be understood that Figure 1 and Figure 2 The lower end of the elastic member 8 and the first connecting rod 9 and the second connecting rod 10 are not assembled in place, and their assembly relationship refers to the assembly relationship between the upper end of the elastic member 8 and the first connecting rod 9 and the second connecting rod 10).

[0031] As a preferred solution, a second connecting rod 10 that can be adjusted in a vertical position is installed on the frame 1. For example, the second connecting rod 10 is provided with an external thread, and the frame 1 is provided with a plurality of vertically distributed internal thread holes. The second connecting rod 10 is selectively threaded into the internal thread hole on the frame 1, so that the vertical position of the second connecting rod 10 can be conveniently adjusted. Similarly, the second connecting rod 10 is elastically connected to the linkage member 2 through the elastic member 8. By adjusting the vertical position of the second connecting rod 10, the distance between the second connecting rod 10 and the left end of the linkage member 2 is reduced or increased, thereby changing the spring force of the elastic member 8.

[0032] As a preferred solution, a flat square is provided at one end of the first rotating shaft 11, and a groove matching the outer contour of the flat square is provided in the middle of the linkage member 2. The groove cooperates with the flat square, so that the linkage member 2 can stably drive the first rotating shaft 11 to rotate.

[0033] The utility model also provides a movement of a baling machine, comprising any one of the above-mentioned gear train moving mechanisms.

[0034] As the above-mentioned gear train moving mechanism is adopted, the structure is simpler.

Claims

1. A gear train moving mechanism, characterized in that: include: A frame (1), a linkage member (2), a driving unit (3) mounted on the frame (1), and a swing member (4) rotatably connected to the frame (1); the driving unit (3) is connected to the swing member (4) to drive the swing member to swing; the middle part of the linkage member (2) is rotatably connected to the frame (1) via a first rotating shaft (11); the two ends of the linkage member (2) are elastically connected to one end of the swing member (4) and the frame (1) via elastic members (8), respectively; an eccentric wheel (12) is eccentrically arranged on the first rotating shaft (11).

2. A gear train moving mechanism according to claim 1, characterized in that: A first connecting rod (9) which can be adjusted in a vertical direction is mounted on one end of the swinging member (4); the first connecting rod (9) is elastically connected to the swinging member (4) via the elastic member (8).

3. A gear train moving mechanism according to claim 2, characterized in that: The first connecting rod (9) passes through the swinging member (4) and is locked by a nut. One end of the first connecting rod (9) and the linkage member (2) is provided with a locking hook portion. The elastic member (8) includes a spring and its two ends are respectively hooked on the locking hook portion.

4. A gear train moving mechanism according to claim 2, characterized in that: The frame (1) is provided with a second connecting rod (10) which can be adjusted in a vertical position, and the second connecting rod (10) is elastically connected to the linkage member (2) via the elastic member (8).

5. A gear train moving mechanism according to claim 4, characterized in that: The frame (1) is provided with a plurality of threaded holes which are distributed vertically, and the second connecting rod (10) is threadedly connected in one of the threaded holes.

6. A gear train moving mechanism according to any one of claims 1 to 5, characterized in that: The linkage member (2) comprises two extension sections and an obliquely extending connecting section, and both ends of the connecting section are respectively fixedly connected to the extension sections.

7. A gear train moving mechanism according to claim 6, characterized in that: A flat square is provided at one end of the first rotating shaft (11), and a groove matching the outer contour of the flat square is provided in the middle of the linkage member (2).

8. A movement of a baling machine, characterized in that: It comprises a gear train moving mechanism as claimed in any one of claims 1 to 7.

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