Automatic fixing mechanism for winding shaft of bag making machine

Abstract

The utility model belongs to the field of bag making machines, and particularly relates to an automatic fixing mechanism for a material rolling shaft of a bag making machine, two ends of the material rolling shaft are respectively connected with a base of the bag making machine through the automatic fixing mechanism for the material rolling shaft, a track is arranged on the base of the bag making machine, a roller is arranged at the end part of the material rolling shaft and rolls on the track, and a driving piece is fixed on the base of the bag making machine. The output end of the driving piece is connected with one end of the double-elbow connector, the locking plate is hinged to the bag making machine base, one end of the locking plate is hinged to the other end of the double-elbow connector, and the other end of the locking plate is a free end. After the rolling wheels at the two ends of the material rolling shaft move in place along the track, the driving piece drives the locking plate to rotate through the double-elbow connector till the free end of the locking plate abuts against the rolling wheels and clamps the rolling wheels, and then the material rolling shaft is fixed. According to the automatic fixing device, automatic fixing of the winding shaft is achieved, compared with manual fixing, the winding shaft can be more accurately and stably fixed, operation is easy, time is saved, the labor amount of workers is saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of bag making machines, in particular to an automatic fixing mechanism for a coiling shaft of a bag making machine. Background Art

[0002] The bag making machine is a machine that makes various plastic packaging bags from plastic film. Among them, the plastic film roll shaft is an important part of the bag making machine and is the carrier of the raw material plastic film. The two ends of the plastic film roll shaft need to be fixed and then rotated to discharge the material; each time the plastic film roll shaft is replaced, the plastic film roll shaft needs to be unfixed and the new plastic film roll shaft needs to be re-fixed. In the prior art, the plastic film roll shaft is often fixed by screw fastening, and each time it is fixed, a wrench needs to be used to tighten the screws; and when disassembling, the screws need to be loosened; the process of manually fixing the plastic film roll shaft is time-consuming and labor-intensive, and the work efficiency is low. Utility Model Content

[0003] In view of the above problems existing in manually fixing the plastic film reel shaft, the utility model aims to provide an automatic reel shaft fixing mechanism for a bag making machine. The automatic reel shaft fixing mechanism for a bag making machine can quickly and reliably fix the plastic film reel shaft.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The two ends of the coil shaft of the utility model are respectively connected to the base of the bag making machine through an automatic fixing mechanism of the coil shaft, and the automatic fixing mechanism of the coil shaft comprises a driving member, a double elbow joint, a locking plate, a roller and a track, wherein the track is installed on the base of the bag making machine, the roller is installed on the end of the coil shaft and rolls on the track, the driving member is fixed on the base of the bag making machine, the output end of the driving member is connected to one end of the double elbow joint, the locking plate is hinged to the base of the bag making machine, one end of the locking plate is hinged to the other end of the double elbow joint, and the other end of the locking plate is a free end; after the rollers at both ends of the coil shaft move into place along the track, the driving member drives the locking plate to rotate through the double elbow joint until the free end of the locking plate abuts against the roller and clamps the roller, thereby fixing the coil shaft.

[0006] Wherein: a base slot is provided on the bag making machine base at a position corresponding to the track, the roller drives the coil shaft to move along the track until the roller enters the base slot, and the driving member drives the locking plate to fix the coil shaft.

[0007] The locking plate is respectively provided with a locking plate pin hole for hinged connection with the bag making machine base and a slot hole for hinged connection with the other end of the double elbow joint.

[0008] The locking plate is in a "V" shape, and the angles between the two sides of the "V" shape are obtuse angles; the locking plate pin hole is arranged in the middle position of the locking plate, and the slot hole is a strip-shaped hole.

[0009] One end of the locking plate is hinged to one end of the double elbow joint through a pin A, and both ends of the pin A are fixed by a shaft with a retaining ring; the locking plate is hinged to the bag making machine base through a pin B, and both ends of the pin B are fixed by a shaft with a retaining ring.

[0010] The roller is a V-shaped roller, that is, the wheel groove of the axial section of the V-shaped roller is "V"-shaped, and the track is a V-shaped track; the free end of the locking plate is driven by the driving member to rotate into the wheel groove of the roller.

[0011] The advantages and positive effects of the utility model are:

[0012] The utility model realizes automatic fixation of the coil shaft. Compared with manual fixation, the utility model can fix the coil shaft more accurately and stably, the operation is simple and time-saving, and the position will not be offset during the process, which saves manual labor and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model installed on a bag making machine;

[0014] Figure 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 This is a structural schematic diagram of the locking plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the base of the bag making machine of the utility model;

[0017] Among them: 1 is the bag making machine base, 11 is the base slot, 2 is the coil shaft, 3 is the coil shaft automatic fixing mechanism, 31 is the driving member, 32 is the double elbow joint, 33 is the pin A, 34 is the locking plate, 341 is the slot hole, 342 is the locking plate pin hole, 35 is the pin B, 36 is the V-shaped roller, 37 is the V-shaped track, and 38 is the shaft retaining ring. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, the coil shaft automatic fixing mechanism 3 of the utility model is symmetrically arranged on both sides of the bag making machine base 1, and the two ends of the coil shaft 2 are connected to the bag making machine base 1 through the coil shaft automatic fixing mechanism 3 respectively.

[0020] like Figure 1 and Figure 2As shown, the automatic fixing mechanism 3 of the coil shaft of the utility model comprises a driving member 31, a double elbow joint 32, a locking plate 34, a roller and a track, wherein the track is installed on the bag making machine base 1, the roller is installed on the end of the coil shaft 2, and rolls on the track, so that the coil shaft 2 can move forward and backward; the driving member 31 is fixed on the bag making machine base 1, the output end of the driving member 31 is threadedly connected to one end of the double elbow joint 32, the locking plate 34 is hinged on the bag making machine base 1, one end of the locking plate 34 is hinged to the other end of the double elbow joint 32, and the other end of the locking plate 34 is a free end.

[0021] like Figures 1 to 3 As shown, the locking plate 34 of this embodiment is provided with a locking plate pin hole 342 for hinged connection with the bag making machine base 1 and a slot hole 341 for hinged connection with the other end of the double elbow joint 32. The locking plate 34 of this embodiment is "V"-shaped, and the angle between the two sides of the "V" is an obtuse angle; the locking plate pin hole 342 is provided at the middle position of the locking plate 34 (i.e., the bottom of the "V" shape), and the slot hole 341 is a strip hole provided at one end of the locking plate 34. One end of the locking plate 34 is hinged to one end of the double elbow joint 32 through a pin shaft A33, and one end of the locking plate 34 is inserted into the "U"-shaped opening at one end of the double elbow joint 32, and the pin shaft A33 passes through the slot hole 341, and the two ends of the pin shaft A33 respectively pass through the two sides of the "U" shape at one end of the double elbow joint 32, and the two ends of the pin shaft A33 are fixed by a shaft retaining ring 38. The locking plate 34 is hinged to the bag making machine base 1 through a pin shaft B35, and the pin shaft B35 passes through the locking plate pin hole 342. Both ends of the pin shaft B35 are fixed by shaft retaining rings 38, so that the locking plate 34 can rotate around the pin shaft B35; when the locking plate 34 rotates around the pin shaft B35, the pin shaft A33 moves in the locking plate pin hole 342.

[0022] like Figure 1 and Figure 2 As shown, the roller of this embodiment is a V-shaped roller 36, that is, the wheel groove of the axial section of the V-shaped roller 36 is "V"-shaped, and the V-shaped roller 36 is installed into the end of the coil shaft 2 through the hole shaft; the track of this embodiment is a V-shaped track 37. The free end of the locking plate 34 is driven by the driving member 31 to rotate into the wheel groove of the roller and abut against the roller.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, a base slot 11 is provided on the bag making machine base 1 of this embodiment at a position corresponding to the track, and the roller drives the coil shaft 2 to move along the track until the roller enters the base slot 11, and the driving member 31 drives the locking plate 34 to fix the coil shaft 2.

[0024] The driving member 31 of this embodiment may be a cylinder.

[0025] The working principle of the utility model is:

[0026] When replacing the coil shaft 2, the V-shaped roller 36 drives the coil shaft 2 to move along the V-shaped track 37. After moving to the specified position, the V-shaped roller 36 moves to the slot 11 on the bag making machine base 1, and the driving member 31 pushes one end of the locking plate 34 forward through the double elbow joint 32, so that the locking plate 34 rotates around the pin shaft B35 until the free end of the locking plate 34 is inserted into the wheel groove of the V-shaped roller 36, and abuts against and clamps the V-shaped roller 36 to ensure that the coil shaft 2 is fixed.

[0027] When the winding shaft 2 is released from fixation, the driving member 31 pulls one end of the locking plate 34 backwards through the double elbow joint 32, so that the locking plate 34 rotates in the opposite direction around the pin shaft B35, thereby releasing the fixation of the winding shaft 2.

Claims

1. An automatic fixing mechanism for a coil shaft of a bag making machine, characterized in that: The two ends of the coil shaft (2) are respectively connected to the bag making machine base (1) through the coil shaft automatic fixing mechanism (3), the coil shaft automatic fixing mechanism (3) comprises a driving member (31), a double elbow joint (32), a locking plate (34), a roller and a track, wherein the track is installed on the bag making machine base (1), the roller is installed on the end of the coil shaft (2) and rolls on the track, the driving member (31) is fixed on the bag making machine base (1), and the output end of the driving member (31) is connected to the double elbow joint ( The locking plate (34) is hinged on the bag making machine base (1), one end of the locking plate (34) is hinged to the other end of the double elbow joint (32), and the other end of the locking plate (34) is a free end; after the rollers at both ends of the coiling shaft (2) move into position along the track, the driving member (31) drives the locking plate (34) to rotate through the double elbow joint (32) until the free end of the locking plate (34) abuts against the roller and clamps the roller, thereby fixing the coiling shaft (2).

2. The automatic fixing mechanism for the coil shaft of the bag making machine according to claim 1 is characterized in that: A base slot (11) is provided on the bag making machine base (1) at a position corresponding to the track, the roller drives the coil shaft (2) to move along the track until the roller enters the base slot (11), and the driving member (31) drives the locking plate (34) to fix the coil shaft (2).

3. The automatic fixing mechanism for the reel shaft of the bag making machine according to claim 1 is characterized in that: The locking plate (34) is provided with a locking plate pin hole (342) for hinged connection with the bag making machine base (1) and a slot hole (341) for hinged connection with the other end of the double elbow joint (32).

4. The automatic fixing mechanism for the reel shaft of the bag making machine according to claim 3 is characterized by: The locking plate (34) is in a "V" shape, and the angles between the two sides of the "V" shape are obtuse angles; the locking plate pin hole (342) is arranged in the middle position of the locking plate (34), and the slot hole (341) is a strip-shaped hole.

5. The automatic fixing mechanism for the reel shaft of the bag making machine according to claim 1 is characterized by: One end of the locking plate (34) is hinged to one end of the double elbow joint (32) via a pin shaft A (33), and both ends of the pin shaft A (33) are fixed via shaft retaining rings (38); the locking plate (34) is hinged to the bag making machine base (1) via a pin shaft B (35), and both ends of the pin shaft B (35) are fixed via shaft retaining rings (38).

6. The automatic fixing mechanism for the reel shaft of the bag making machine according to claim 1 is characterized by: The roller is a V-shaped roller (36), that is, the wheel groove of the axial section of the V-shaped roller (36) is "V"-shaped, and the track is a V-shaped track (37); the free end of the locking plate (34) is driven by the driving member (31) to rotate into the wheel groove of the roller.

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